| 1 | Physics | 1,158 | 84.0K | 445 | 419 |
| 2 | Science | 895 | 77.4K | 404 | 401 |
| 3 | Biochemistry | 1,517 | 74.5K | 282 | 231 |
| 4 | Biology | 773 | 68.8K | 442 | 442 |
| 5 | Chemistry | 1,170 | 53.3K | 393 | 437 |
| 6 | Medicine | 891 | 52.7K | 422 | 336 |
| 7 | Microbiology | 732 | 52.0K | 247 | 189 |
| 8 | Molecular Biology | 741 | 51.7K | 373 | 307 |
| 9 | Nuclear Physics | 1,000 | 41.2K | 274 | 247 |
| 10 | Neurology | 588 | 40.3K | 319 | 272 |
| 11 | Diabetes | 308 | 30.2K | 74 | 43 |
| 12 | Research | 666 | 29.2K | 395 | 323 |
| 13 | Diabetes mellitus | 293 | 29.0K | 62 | 41 |
| 14 | Immunology | 423 | 26.2K | 224 | 225 |
| 15 | Natural history | 146 | 24.5K | 427 | 576 |
| 16 | Catalysis | 605 | 24.1K | 96 | 138 |
| 17 | Ecology | 343 | 22.9K | 470 | 424 |
| 18 | Cytology | 266 | 22.5K | 397 | 378 |
| 19 | Economics | 596 | 22.4K | 79 | 95 |
| 20 | Materials | 344 | 22.0K | 589 | 382 |
| 21 | Public Health | 345 | 21.7K | 311 | 196 |
| 22 | Pharmacology | 435 | 20.9K | 336 | 202 |
| 23 | Environment | 237 | 20.2K | 365 | 301 |
| 24 | Polymers | 509 | 19.7K | 206 | 165 |
| 25 | Cell Biology | 208 | 18.7K | 430 | 441 |
| 26 | Nanotechnology | 284 | 18.4K | 456 | 351 |
| 27 | Solid State Physics | 319 | 17.8K | 458 | 258 |
| 28 | Endocrinology | 288 | 17.6K | 207 | 196 |
| 29 | Condensed Matter | 255 | 17.5K | 513 | 278 |
| 30 | Biophysics | 476 | 17.5K | 313 | 281 |
| 31 | Metabolism | 359 | 17.1K | 123 | 162 |
| 32 | Statistical Mechanics | 34 | 16.9K | 242 | 5 |
| 33 | Cancer | 227 | 16.2K | 349 | 245 |
| 34 | Biotechnology | 272 | 16.2K | 461 | 396 |
| 35 | fertility | 191 | 15.6K | 24 | 10 |
| 36 | Epidemiology | 228 | 15.4K | 261 | 148 |
| 37 | Social Psychology | 223 | 15.3K | 117 | 97 |
| 38 | Infertility | 185 | 15.3K | 26 | 11 |
| 39 | Metabolic diseases | 286 | 15.3K | 107 | 151 |
| 40 | Psychology | 350 | 15.1K | 288 | 259 |
| 41 | Human genetics | 85 | 15.0K | 425 | 457 |
| 42 | Physiology | 371 | 14.9K | 214 | 222 |
| 43 | Genetics | 188 | 14.4K | 378 | 369 |
| 44 | Environmental Health | 291 | 14.4K | 281 | 290 |
| 45 | Botany | 205 | 14.3K | 451 | 297 |
| 46 | Hematology | 220 | 14.1K | 373 | 241 |
| 47 | Meteorology | 188 | 14.1K | 211 | 149 |
| 48 | Materials Science | 137 | 13.9K | 733 | 298 |
| 49 | Econometrics | 142 | 13.2K | 49 | 38 |
| 50 | Medical genetics | 154 | 13.2K | 350 | 263 |
| 51 | Environmental Policy | 88 | 13.0K | 343 | 102 |
| 52 | polymerization | 388 | 12.8K | 212 | 203 |
| 53 | Toxicology | 315 | 12.8K | 223 | 193 |
| 54 | Neurophysiology | 219 | 12.5K | 251 | 269 |
| 55 | Mathematics | 591 | 12.3K | 340 | 195 |
| 56 | Soil Science | 216 | 12.3K | 73 | 54 |
| 57 | Spectrum analysis | 188 | 11.9K | 563 | 511 |
| 58 | Climatology | 161 | 11.9K | 139 | 108 |
| 59 | Europe | 381 | 11.3K | 71 | 41 |
| 60 | Nutrition | 136 | 10.9K | 513 | 259 |
| 61 | Cognition | 166 | 10.9K | 120 | 80 |
| 62 | Pollution | 164 | 10.8K | 621 | 532 |
| 63 | Nervous system | 152 | 10.7K | 183 | 166 |
| 64 | Mathematical Physics | 158 | 10.6K | 337 | 137 |
| 65 | Metallurgy | 102 | 10.2K | 306 | 128 |
| 66 | Psychophysiology | 222 | 10.1K | 244 | 257 |
| 67 | transport vesicles | 5 | 9.6K | 147 | 157 |
| 68 | Medical Microbiology | 135 | 9.5K | 190 | 147 |
| 69 | Pharmaceutical Chemistry | 212 | 9.2K | 310 | 269 |
| 70 | Surface Chemistry | 324 | 9.0K | 171 | 250 |
| 71 | Virology | 122 | 8.4K | 456 | 598 |
| 72 | Statistics | 201 | 8.3K | 163 | 132 |
| 73 | Quantum Gravity | 223 | 8.2K | 330 | 343 |
| 74 | Astrophysics | 132 | 8.0K | 785 | 783 |
| 75 | Colloids | 200 | 8.0K | 329 | 305 |
| 76 | Behavior | 157 | 7.8K | 285 | 296 |
| 77 | Brain | 148 | 7.8K | 313 | 270 |
| 78 | Metals | 69 | 7.7K | 374 | 143 |
| 79 | Clinical Chemistry | 198 | 7.7K | 149 | 174 |
| 80 | Neuropsychology | 168 | 7.6K | 150 | 128 |
| 81 | Bioengineering | 141 | 7.5K | 457 | 509 |
| 82 | Engineering Mathematics | 34 | 7.4K | 662 | 24 |
| 83 | United Kingdom | 141 | 7.3K | 76 | 75 |
| 84 | Transplantation | 133 | 7.3K | 99 | 95 |
| 85 | pain | 80 | 7.2K | 153 | 97 |
| 86 | Statistical physics | 163 | 7.2K | 586 | 380 |
| 87 | Reproduction | 125 | 6.9K | 224 | 121 |
| 88 | personality | 95 | 6.9K | 148 | 124 |
| 89 | Earth Sciences | 97 | 6.9K | 472 | 267 |
| 90 | Psychiatry | 126 | 6.9K | 615 | 568 |
| 91 | Molecular Microbiology | 57 | 6.7K | 114 | 69 |
| 92 | Liver diseases | 85 | 6.6K | 183 | 184 |
| 93 | Biodiversity conservation | 54 | 6.4K | 330 | 243 |
| 94 | Microbial Ecology | 86 | 6.3K | 313 | 314 |
| 95 | Immunity | 58 | 6.3K | 423 | 407 |
| 96 | Developmental Biology | 72 | 6.2K | 389 | 309 |
| 97 | Biomedical Engineering | 129 | 6.1K | 612 | 398 |
| 98 | Automation | 94 | 6.1K | 154 | 105 |
| 99 | Biocompatible Materials | 108 | 6.0K | 648 | 586 |
| 100 | Geophysics | 143 | 5.9K | 632 | 567 |
| 101 | Diagnostic Imaging | 107 | 5.8K | 165 | 97 |
| 102 | Economic History | 149 | 5.8K | 298 | 122 |
| 103 | Technology | 107 | 5.7K | 542 | 273 |
| 104 | United States | 147 | 5.7K | 571 | 466 |
| 105 | Operations Research | 118 | 5.7K | 164 | 119 |
| 106 | Electronics | 224 | 5.6K | 264 | 201 |
| 107 | Nuclear Medicine | 101 | 5.6K | 81 | 44 |
| 108 | Membranes | 78 | 5.6K | 229 | 152 |
| 109 | environmental pollution | 115 | 5.4K | 556 | 522 |
| 110 | Radiation | 47 | 5.4K | 422 | 61 |
| 111 | drug therapy | 104 | 5.3K | 282 | 197 |
| 112 | nanoscience | 96 | 5.2K | 429 | 412 |
| 113 | Cardiovascular system | 57 | 5.2K | 338 | 287 |
| 114 | Critical Care | 87 | 5.2K | 193 | 230 |
| 115 | Embryology | 64 | 5.2K | 303 | 234 |
| 116 | Economic Development | 80 | 5.2K | 141 | 91 |
| 117 | Critical Care Medicine | 84 | 5.2K | 200 | 230 |
| 118 | Cognitive neuroscience | 61 | 5.2K | 138 | 133 |
| 119 | Climate change | 39 | 5.1K | 209 | 232 |
| 119 | Eutrophication | 39 | 5.1K | 206 | 230 |
| 121 | Molecular Imaging | 73 | 4.8K | 57 | 38 |
| 122 | Nanostructures | 31 | 4.7K | 571 | 174 |
| 123 | Parasitic Diseases | 71 | 4.7K | 243 | 125 |
| 124 | Bacteriology | 80 | 4.7K | 293 | 298 |
| 125 | Geomorphology | 81 | 4.7K | 92 | 62 |
| 126 | Neurobiology | 49 | 4.6K | 424 | 299 |
| 127 | Plant diseases | 136 | 4.6K | 167 | 131 |
| 128 | Developing countries | 81 | 4.5K | 221 | 106 |
| 129 | soil microbiology | 87 | 4.5K | 128 | 186 |
| 129 | Mycology | 109 | 4.5K | 115 | 99 |
| 131 | radiative transfer | 10 | 4.5K | 352 | 26 |
| 132 | Hypertension | 65 | 4.5K | 289 | 301 |
| 133 | Plant cells | 46 | 4.5K | 299 | 316 |
| 134 | Diet | 38 | 4.5K | 570 | 294 |
| 135 | Cerebral cortex | 88 | 4.4K | 60 | 88 |
| 136 | Astronomy | 83 | 4.4K | 868 | 817 |
| 137 | Energy Policy | 48 | 4.4K | 479 | 275 |
| 138 | Plant physiology | 80 | 4.4K | 317 | 312 |
| 139 | Planets | 75 | 4.3K | 395 | 330 |
| 140 | Cognitive Science | 49 | 4.3K | 202 | 133 |
| 141 | economic policy | 129 | 4.3K | 133 | 80 |
| 142 | Pharmacy | 77 | 4.3K | 273 | 139 |
| 143 | Diagnostic microbiology | 64 | 4.3K | 149 | 196 |
| 144 | Chemical Engineering | 124 | 4.3K | 770 | 868 |
| 145 | Pediatric Neurology | 24 | 4.2K | 376 | 195 |
| 145 | Semiconductors | 130 | 4.2K | 106 | 38 |
| 147 | Oceanography | 99 | 4.2K | 275 | 261 |
| 148 | Medical Physics | 160 | 4.2K | 120 | 152 |
| 149 | Pediatrics | 60 | 4.1K | 524 | 406 |
| 150 | Hydrology | 90 | 4.1K | 330 | 259 |
| 151 | Cell metabolism | 9 | 4.1K | 359 | 130 |
| 152 | Homeostasis | 8 | 4.0K | 267 | 127 |
| 153 | Agricultural Chemistry | 73 | 4.0K | 324 | 196 |
| 154 | Oncology | 47 | 4.0K | 471 | 567 |
| 155 | Emotions | 39 | 4.0K | 78 | 33 |
| 156 | energy resources | 29 | 3.9K | 312 | 143 |
| 157 | Geography | 74 | 3.8K | 366 | 230 |
| 158 | Perception | 84 | 3.7K | 292 | 218 |
| 159 | Nanostructured Materials | 98 | 3.7K | 554 | 534 |
| 160 | human behavior | 59 | 3.6K | 433 | 441 |
| 161 | Geriatrics | 104 | 3.6K | 418 | 358 |
| 162 | management | 67 | 3.6K | 667 | 578 |
| 163 | Obesity | 55 | 3.5K | 413 | 305 |
| 164 | Mental Disorders | 52 | 3.5K | 705 | 570 |
| 165 | Analytical Chemistry | 97 | 3.5K | 884 | 785 |
| 166 | Aging | 109 | 3.5K | 398 | 366 |
| 167 | drugs | 64 | 3.4K | 307 | 160 |
| 168 | Plants | 44 | 3.4K | 506 | 392 |
| 169 | infection | 44 | 3.4K | 316 | 159 |
| 170 | Medical Laboratory Science | 85 | 3.4K | 155 | 182 |
| 171 | Genomics | 72 | 3.4K | 550 | 454 |
| 172 | Environmental monitoring | 54 | 3.4K | 808 | 576 |
| 173 | Pathology | 81 | 3.3K | 417 | 429 |
| 174 | Infections | 39 | 3.3K | 201 | 116 |
| 175 | Biodiversity | 56 | 3.3K | 402 | 319 |
| 176 | alcoholism | 76 | 3.3K | 211 | 178 |
| 177 | Water | 61 | 3.3K | 469 | 479 |
| 178 | Cell differentiation | 54 | 3.2K | 367 | 442 |
| 179 | Geology | 58 | 3.2K | 883 | 549 |
| 180 | Fungi | 64 | 3.2K | 108 | 107 |
| 181 | Numerical Analysis | 74 | 3.2K | 303 | 129 |
| 182 | Surgery | 31 | 3.2K | 783 | 568 |
| 183 | Clinical Biochemistry | 49 | 3.1K | 174 | 64 |
| 184 | Data Mining | 24 | 3.1K | 379 | 122 |
| 185 | Neural circuitry | 69 | 3.1K | 153 | 144 |
| 186 | Plastics | 47 | 3.1K | 254 | 62 |
| 187 | Memory | 79 | 3.1K | 301 | 276 |
| 188 | Drug design | 45 | 3.0K | 203 | 102 |
| 189 | Entrepreneurship | 25 | 3.0K | 189 | 137 |
| 190 | Combustion | 70 | 2.9K | 168 | 140 |
| 191 | Environmental Engineering | 62 | 2.9K | 739 | 681 |
| 192 | Microorganisms | 30 | 2.9K | 258 | 185 |
| 193 | Game Theory | 64 | 2.9K | 18 | 24 |
| 194 | Visual Perception | 82 | 2.8K | 234 | 220 |
| 195 | Allergy | 36 | 2.8K | 328 | 381 |
| 196 | Immunotherapy | 42 | 2.8K | 383 | 359 |
| 197 | plasticity | 29 | 2.8K | 49 | 32 |
| 198 | Process Control | 41 | 2.8K | 72 | 69 |
| 199 | Sociology | 75 | 2.7K | 462 | 391 |
| 200 | Cytogenetics | 29 | 2.7K | 465 | 356 |
| 201 | Plant Ecology | 49 | 2.7K | 355 | 317 |
| 202 | Drug delivery systems | 27 | 2.6K | 357 | 175 |
| 203 | Clinical Pharmacology | 52 | 2.6K | 211 | 107 |
| 204 | Environmental Toxicology | 55 | 2.6K | 334 | 350 |
| 204 | Business Ethics | 20 | 2.6K | 248 | 122 |
| 206 | Microelectronics | 77 | 2.6K | 273 | 398 |
| 207 | Electrochemistry | 140 | 2.5K | 630 | 739 |
| 208 | Entomology | 82 | 2.5K | 335 | 227 |
| 209 | Medical Oncology | 46 | 2.5K | 441 | 352 |
| 210 | Host-parasite interactions | 22 | 2.5K | 436 | 341 |
| 211 | Neurochemistry | 63 | 2.5K | 531 | 549 |
| 212 | data collection | 17 | 2.5K | 317 | 95 |
| 213 | Biochemical Engineering | 57 | 2.5K | 700 | 1060 |
| 214 | Leukemia | 37 | 2.5K | 295 | 258 |
| 215 | Bioorganic chemistry | 73 | 2.5K | 490 | 505 |
| 215 | Hormones | 47 | 2.5K | 222 | 161 |
| 217 | insurance | 81 | 2.5K | 8 | 7 |
| 218 | Genetic engineering | 43 | 2.5K | 432 | 364 |
| 219 | System analysis | 92 | 2.5K | 198 | 205 |
| 220 | Health | 44 | 2.4K | 466 | 274 |
| 221 | Hydraulic Engineering | 48 | 2.4K | 193 | 107 |
| 222 | Virulence | 22 | 2.4K | 411 | 296 |
| 223 | Anatomy | 39 | 2.4K | 537 | 401 |
| 224 | Control Theory | 67 | 2.4K | 249 | 157 |
| 225 | Chemotherapy | 42 | 2.4K | 274 | 136 |
| 226 | miniaturization | 49 | 2.4K | 374 | 466 |
| 227 | atmospheric models | 22 | 2.4K | 264 | 162 |
| 228 | Growth | 27 | 2.4K | 421 | 375 |
| 229 | finance | 53 | 2.3K | 454 | 280 |
| 230 | Social Sciences | 99 | 2.3K | 446 | 340 |
| 231 | Engineering | 71 | 2.3K | 766 | 435 |
| 232 | Environmental Microbiology | 34 | 2.3K | 270 | 257 |
| 233 | Land use | 30 | 2.3K | 178 | 57 |
| 234 | Biogeochemistry | 40 | 2.3K | 266 | 272 |
| 235 | Oncogenes | 24 | 2.3K | 445 | 369 |
| 236 | Molecular Genetics | 49 | 2.3K | 397 | 440 |
| 237 | viruses | 34 | 2.2K | 469 | 436 |
| 238 | Actuarial Science | 85 | 2.2K | 8 | 7 |
| 239 | Medical innovations | 14 | 2.2K | 417 | 257 |
| 240 | free radicals | 45 | 2.2K | 238 | 284 |
| 241 | Composite Materials | 41 | 2.2K | 777 | 637 |
| 242 | Nonlinear Dynamics | 36 | 2.2K | 765 | 435 |
| 242 | Child psychology | 37 | 2.2K | 393 | 350 |
| 244 | drug addiction | 24 | 2.2K | 379 | 195 |
| 245 | Organic Chemistry | 101 | 2.2K | 512 | 699 |
| 246 | Agriculture | 39 | 2.2K | 516 | 305 |
| 247 | occupational diseases | 40 | 2.1K | 101 | 76 |
| 248 | plant molecular biology | 29 | 2.1K | 521 | 504 |
| 249 | behavior therapy | 18 | 2.1K | 329 | 141 |
| 250 | Immune system | 28 | 2.1K | 284 | 430 |
| 251 | Regional Planning | 68 | 2.1K | 170 | 154 |
| 252 | Food | 33 | 2.1K | 951 | 537 |
| 253 | Parasitology | 53 | 2.1K | 499 | 336 |
| 254 | computer networks | 60 | 2.1K | 313 | 218 |
| 255 | Radiobiology | 57 | 2.1K | 283 | 285 |
| 256 | Sustainable Development | 28 | 2.1K | 451 | 262 |
| 257 | Mental illness | 34 | 2.1K | 585 | 545 |
| 258 | arthritis | 42 | 2.1K | 313 | 362 |
| 259 | Ethology | 44 | 2.1K | 352 | 389 |
| 260 | Animal Behavior | 46 | 2.0K | 469 | 477 |
| 261 | Industrial Microbiology | 48 | 2.0K | 276 | 313 |
| 262 | Biomass Energy | 35 | 2.0K | 676 | 563 |
| 263 | Vision | 34 | 2.0K | 155 | 127 |
| 264 | Thin Films | 79 | 2.0K | 14 | 17 |
| 265 | Pharmacogenetics | 33 | 2.0K | 194 | 135 |
| 266 | environmental exposure | 44 | 2.0K | 248 | 197 |
| 267 | Geochemistry | 37 | 1.9K | 685 | 586 |
| 268 | Environmental Geology | 43 | 1.9K | 215 | 164 |
| 269 | Child | 77 | 1.9K | 345 | 377 |
| 270 | Optics | 128 | 1.9K | 928 | 933 |
| 271 | Solid State Chemistry | 88 | 1.9K | 346 | 368 |
| 272 | Carbon | 41 | 1.9K | 216 | 288 |
| 273 | Pharmaceutical Technology | 27 | 1.9K | 439 | 200 |
| 274 | Molecular structure | 74 | 1.9K | 289 | 490 |
| 275 | Respiration | 43 | 1.9K | 329 | 294 |
| 276 | Functional Analysis | 45 | 1.9K | 221 | 73 |
| 277 | gastrointestinal tract | 15 | 1.9K | 47 | 9 |
| 278 | Biogeography | 23 | 1.8K | 321 | 254 |
| 278 | Agricultural Ecology | 33 | 1.8K | 212 | 224 |
| 280 | Signal Transduction | 28 | 1.8K | 350 | 310 |
| 281 | Antioxidants | 26 | 1.8K | 96 | 125 |
| 282 | Child Development | 36 | 1.8K | 554 | 429 |
| 283 | Bioinorganic chemistry | 51 | 1.8K | 224 | 155 |
| 284 | Rheumatology | 26 | 1.8K | 388 | 296 |
| 284 | Nutrition physiology | 28 | 1.8K | 119 | 70 |
| 286 | Attention | 63 | 1.8K | 323 | 342 |
| 287 | Optical materials | 40 | 1.8K | 812 | 725 |
| 288 | ecosystem | 30 | 1.8K | 354 | 320 |
| 289 | Social behavior | 34 | 1.8K | 257 | 228 |
| 290 | Mathematical Economics | 46 | 1.7K | 26 | 69 |
| 291 | Molecular Spectroscopy | 67 | 1.7K | 157 | 147 |
| 292 | Cosmology | 34 | 1.7K | 429 | 153 |
| 293 | Mass Spectrometry | 25 | 1.7K | 398 | 178 |
| 294 | Molecules | 109 | 1.7K | 132 | 268 |
| 295 | Lipids | 27 | 1.7K | 345 | 270 |
| 296 | biological evolution | 37 | 1.7K | 600 | 714 |
| 297 | Computational Biology | 25 | 1.7K | 964 | 683 |
| 298 | Agronomy | 14 | 1.7K | 217 | 114 |
| 299 | Recombinant DNA | 29 | 1.7K | 372 | 216 |
| 300 | Molecular cloning | 26 | 1.6K | 380 | 195 |
| 301 | Transportation | 24 | 1.6K | 569 | 312 |
| 302 | Genetic recombination | 25 | 1.6K | 380 | 195 |
| 303 | Food Microbiology | 35 | 1.6K | 227 | 255 |
| 304 | water supply | 25 | 1.6K | 297 | 236 |
| 305 | Magnetic Materials | 18 | 1.6K | 663 | 227 |
| 306 | economic conditions | 22 | 1.6K | 151 | 63 |
| 307 | Economic Thought | 18 | 1.6K | 55 | 55 |
| 308 | Occupational Health | 36 | 1.6K | 176 | 98 |
| 308 | drug development | 12 | 1.6K | 489 | 328 |
| 310 | mathematical analysis | 101 | 1.5K | 333 | 301 |
| 311 | Health Education | 55 | 1.5K | 320 | 299 |
| 311 | Neurons | 11 | 1.5K | 397 | 517 |
| 313 | Antigens | 54 | 1.5K | 79 | 121 |
| 314 | Substance Abuse | 28 | 1.5K | 430 | 236 |
| 315 | Physical Chemistry | 31 | 1.5K | 775 | 629 |
| 316 | Thrombosis | 46 | 1.5K | 177 | 251 |
| 317 | global environmental change | 28 | 1.5K | 148 | 179 |
| 318 | Yeast | 52 | 1.5K | 12 | 36 |
| 319 | Rheology | 57 | 1.5K | 53 | 76 |
| 320 | scientific societies | 32 | 1.5K | 138 | 90 |
| 321 | Parasites | 38 | 1.5K | 302 | 223 |
| 322 | Genetic disorders | 31 | 1.5K | 109 | 67 |
| 323 | nucleic acids | 37 | 1.5K | 536 | 749 |
| 324 | Therapeutics | 34 | 1.5K | 477 | 490 |
| 325 | Oxidation-reduction | 19 | 1.5K | 204 | 222 |
| 326 | Political Science | 58 | 1.5K | 354 | 281 |
| 327 | Plant hormones | 13 | 1.5K | 78 | 10 |
| 328 | Social Entrepreneurship | 3 | 1.5K | 89 | 2 |
| 329 | Antibodies | 48 | 1.4K | 43 | 85 |
| 330 | Urology | 37 | 1.4K | 562 | 498 |
| 331 | Biopharmaceutics | 24 | 1.4K | 289 | 162 |
| 332 | Pharmacognosy | 33 | 1.4K | 449 | 388 |
| 333 | Histology | 52 | 1.4K | 351 | 453 |
| 334 | Ophthalmology | 29 | 1.4K | 622 | 457 |
| 335 | environmental protection | 37 | 1.4K | 901 | 899 |
| 336 | Educational Psychology | 45 | 1.4K | 297 | 317 |
| 337 | sustainability | 13 | 1.4K | 294 | 171 |
| 338 | Clinical Immunology | 35 | 1.4K | 302 | 209 |
| 339 | Learning | 19 | 1.4K | 500 | 324 |
| 340 | gene therapy | 23 | 1.4K | 327 | 278 |
| 341 | Differential Equations | 29 | 1.4K | 230 | 84 |
| 342 | Radiation effects | 18 | 1.4K | 113 | 46 |
| 343 | Developmental Psychology | 44 | 1.4K | 200 | 281 |
| 344 | Medical Technology | 29 | 1.4K | 365 | 213 |
| 345 | Fluid Mechanics | 47 | 1.4K | 377 | 324 |
| 346 | Forest Management | 31 | 1.4K | 221 | 198 |
| 347 | Urban Economics | 24 | 1.4K | 54 | 60 |
| 347 | nuclear astrophysics | 7 | 1.4K | 366 | 82 |
| 347 | urban population | 24 | 1.4K | 28 | 43 |
| 350 | Development | 27 | 1.4K | 165 | 153 |
| 350 | Economic Assistance | 27 | 1.4K | 127 | 132 |
| 352 | Pharmacokinetics | 15 | 1.4K | 319 | 96 |
| 353 | Forest Ecology | 31 | 1.4K | 234 | 221 |
| 354 | cryosphere | 28 | 1.4K | 100 | 105 |
| 355 | world | 25 | 1.4K | 152 | 169 |
| 356 | Hemophilia | 86 | 1.4K | 16 | 61 |
| 357 | Business | 36 | 1.4K | 537 | 627 |
| 358 | Production Management | 19 | 1.4K | 384 | 358 |
| 358 | Tropical Medicine | 38 | 1.4K | 371 | 237 |
| 360 | Soft Condensed Matter | 40 | 1.3K | 238 | 224 |
| 361 | Immunochemistry | 46 | 1.3K | 100 | 91 |
| 362 | disease vectors | 32 | 1.3K | 156 | 123 |
| 363 | Nutritional support | 21 | 1.3K | 8 | 6 |
| 364 | Population | 62 | 1.3K | 101 | 124 |
| 365 | Physical Therapy | 38 | 1.3K | 271 | 309 |
| 366 | Magnetic Resonance Spectroscopy | 36 | 1.3K | 310 | 231 |
| 367 | Education | 76 | 1.3K | 705 | 657 |
| 368 | Environmental Management | 28 | 1.3K | 933 | 898 |
| 369 | Meteorites | 19 | 1.3K | 480 | 423 |
| 370 | Psycholinguistics | 38 | 1.3K | 203 | 240 |
| 371 | Sports Medicine | 51 | 1.3K | 557 | 591 |
| 372 | rehabilitation | 57 | 1.3K | 345 | 491 |
| 373 | Water pollution | 47 | 1.3K | 638 | 910 |
| 374 | Organ transplantation | 42 | 1.3K | 49 | 22 |
| 375 | preimplantation genetic diagnosis | 32 | 1.3K | 43 | 16 |
| 375 | embryo transfer | 32 | 1.3K | 46 | 19 |
| 377 | Physical organic chemistry | 17 | 1.3K | 616 | 183 |
| 378 | Nanoparticles | 23 | 1.3K | 688 | 475 |
| 379 | Computational Chemistry | 1 | 1.2K | 1324 | 161 |
| 380 | plant communities | 25 | 1.2K | 348 | 385 |
| 381 | Enteral nutrition | 14 | 1.2K | 357 | 227 |
| 381 | Parenteral nutrition | 14 | 1.2K | 491 | 304 |
| 381 | gene mapping | 27 | 1.2K | 649 | 690 |
| 384 | Evolution | 35 | 1.2K | 549 | 703 |
| 385 | psychotherapy | 26 | 1.2K | 437 | 378 |
| 386 | Insects | 22 | 1.2K | 491 | 239 |
| 387 | Demography | 61 | 1.2K | 56 | 119 |
| 388 | nuclear magnetic resonance | 28 | 1.2K | 368 | 238 |
| 389 | Breeding | 25 | 1.2K | 391 | 260 |
| 390 | Green Chemistry | 24 | 1.2K | 645 | 628 |
| 391 | Artificial Intelligence | 36 | 1.2K | 1230 | 979 |
| 392 | Muscles | 30 | 1.2K | 179 | 201 |
| 393 | counseling | 33 | 1.2K | 320 | 247 |
| 394 | enzymes | 31 | 1.2K | 369 | 349 |
| 395 | Small Business | 21 | 1.2K | 162 | 275 |
| 395 | marketing | 37 | 1.2K | 454 | 536 |
| 397 | proteins | 54 | 1.2K | 412 | 585 |
| 398 | biopolymers | 39 | 1.2K | 256 | 264 |
| 399 | Obstetrics | 43 | 1.2K | 670 | 691 |
| 400 | mycoses | 24 | 1.2K | 161 | 303 |
| 401 | Bioenergetics | 26 | 1.2K | 210 | 199 |
| 402 | Landscape Ecology | 12 | 1.2K | 174 | 83 |
| 403 | Organometallic chemistry | 53 | 1.2K | 263 | 222 |
| 404 | Orthopedics | 21 | 1.2K | 637 | 421 |
| 405 | Smoking | 17 | 1.2K | 289 | 175 |
| 406 | rare diseases | 19 | 1.2K | 158 | 102 |
| 407 | Neurosurgery | 30 | 1.1K | 245 | 283 |
| 408 | Clinical Psychology | 25 | 1.1K | 493 | 530 |
| 409 | Soil biology | 28 | 1.1K | 264 | 356 |
| 410 | Fluid Dynamics | 20 | 1.1K | 435 | 212 |
| 411 | Developmental Genetics | 6 | 1.1K | 465 | 307 |
| 412 | Genetic therapy | 23 | 1.1K | 400 | 365 |
| 413 | mutation | 17 | 1.1K | 174 | 121 |
| 414 | Patient education | 24 | 1.1K | 147 | 127 |
| 415 | Malaria | 33 | 1.1K | 144 | 138 |
| 416 | Surface-Active Agents | 27 | 1.1K | 164 | 173 |
| 416 | Surface properties | 27 | 1.1K | 190 | 195 |
| 418 | Stem cells | 34 | 1.1K | 420 | 550 |
| 419 | Dermatology | 29 | 1.1K | 638 | 522 |
| 420 | Sustainable agriculture | 18 | 1.1K | 185 | 100 |
| 420 | Energy metabolism | 21 | 1.1K | 216 | 189 |
| 422 | Digestive system diseases | 19 | 1.1K | 366 | 193 |
| 423 | Chromosome mapping | 23 | 1.1K | 653 | 630 |
| 424 | ethanol | 49 | 1.1K | 36 | 64 |
| 425 | Medicinal plants | 20 | 1.1K | 445 | 341 |
| 426 | Genetic regulation | 17 | 1.1K | 471 | 489 |
| 427 | locomotion | 27 | 1.0K | 105 | 112 |
| 427 | posture | 27 | 1.0K | 105 | 112 |
| 427 | cytokines | 22 | 1.0K | 365 | 296 |
| 427 | gait | 27 | 1.0K | 105 | 112 |
| 427 | walking | 27 | 1.0K | 105 | 112 |
| 432 | Environmental Law | 17 | 1.0K | 377 | 436 |
| 433 | brewing | 45 | 1.0K | 26 | 19 |
| 434 | cell physiology | 11 | 1.0K | 928 | 666 |
| 435 | Paleoclimatology | 16 | 1.0K | 519 | 345 |
| 436 | intergroup relations | 16 | 1.0K | 28 | 21 |
| 436 | Solar System | 23 | 1.0K | 357 | 318 |
| 438 | Chromosomes | 16 | 1.0K | 382 | 257 |
| 439 | Health Services Research | 39 | 1.0K | 357 | 387 |
| 440 | food technology | 22 | 1.0K | 993 | 780 |
| 441 | Primary health care | 39 | 1.0K | 372 | 355 |
| 442 | Industrial Policy | 41 | 1.0K | 13 | 62 |
| 443 | Environmental pollutants | 26 | 1.0K | 681 | 630 |
| 444 | Zoology | 33 | 1.0K | 859 | 644 |
| 445 | Molecular Pharmacology | 6 | 1.0K | 641 | 214 |
| 446 | probabilities | 58 | 988 | 231 | 192 |
| 447 | Immunopathology | 23 | 987 | 514 | 440 |
| 448 | Marine Biology | 35 | 984 | 881 | 923 |
| 449 | Sustainable Engineering | 18 | 978 | 670 | 515 |
| 450 | Crystal growth | 37 | 977 | 145 | 186 |
| 451 | human development | 26 | 976 | 179 | 202 |
| 452 | Welfare Economics | 27 | 973 | 58 | 76 |
| 453 | Kidney diseases | 27 | 969 | 238 | 225 |
| 454 | International Finance | 30 | 967 | 395 | 364 |
| 455 | Bacterial infections | 11 | 962 | 401 | 380 |
| 456 | Computational Mathematics | 5 | 958 | 71 | 6 |
| 457 | behavioral medicine | 13 | 955 | 610 | 436 |
| 458 | clay | 28 | 948 | 109 | 158 |
| 459 | Electrophoresis | 17 | 946 | 704 | 381 |
| 460 | older people | 30 | 942 | 463 | 252 |
| 461 | pollutants | 23 | 940 | 595 | 571 |
| 462 | Social policy | 21 | 932 | 289 | 128 |
| 463 | Health Policy | 36 | 930 | 605 | 657 |
| 464 | Remote Sensing | 29 | 927 | 319 | 160 |
| 465 | Medical Anthropology | 18 | 922 | 458 | 448 |
| 466 | sanitation | 15 | 912 | 788 | 842 |
| 467 | Psychopharmacology | 24 | 909 | 603 | 718 |
| 468 | Ocean Engineering | 23 | 908 | 605 | 485 |
| 469 | Chronic diseases | 6 | 894 | 580 | 333 |
| 470 | Fracture mechanics | 29 | 886 | 424 | 364 |
| 471 | Molecular ecology | 14 | 879 | 563 | 545 |
| 472 | biological factors | 30 | 869 | 475 | 522 |
| 473 | Serology | 22 | 861 | 71 | 55 |
| 474 | Developmental Disabilities | 26 | 860 | 279 | 352 |
| 475 | Signal Processing | 47 | 850 | 381 | 462 |
| 476 | Image Processing | 28 | 849 | 592 | 626 |
| 476 | Gene expression regulation | 12 | 849 | 498 | 397 |
| 478 | energy conservation | 18 | 848 | 688 | 726 |
| 478 | Biomass | 12 | 848 | 195 | 156 |
| 480 | Reproductive health | 23 | 842 | 179 | 142 |
| 481 | Bones | 28 | 834 | 249 | 335 |
| 482 | Algorithms | 27 | 830 | 73 | 64 |
| 482 | actuators | 30 | 830 | 663 | 829 |
| 482 | transducers | 30 | 830 | 663 | 829 |
| 485 | Youth | 8 | 829 | 403 | 187 |
| 486 | Human Resources | 7 | 827 | 239 | 95 |
| 487 | Biomechanics | 22 | 825 | 459 | 425 |
| 488 | Sports | 23 | 823 | 774 | 625 |
| 488 | Elderly | 25 | 823 | 427 | 132 |
| 490 | Schizophrenia | 5 | 821 | 979 | 451 |
| 491 | Computer Science | 61 | 819 | 209 | 308 |
| 492 | Nephrology | 13 | 817 | 268 | 210 |
| 492 | calcification | 17 | 817 | 168 | 153 |
| 494 | Vaccines | 22 | 813 | 713 | 642 |
| 495 | Cell death | 11 | 807 | 734 | 636 |
| 496 | Human-Computer Interaction | 13 | 800 | 665 | 297 |
| 497 | Agricultural Science | 4 | 798 | 184 | 103 |
| 498 | Language Disorders | 21 | 796 | 285 | 212 |
| 499 | Multiphase Flow | 13 | 794 | 134 | 83 |
| 500 | Analytical Biochemistry | 23 | 792 | 527 | 518 |
| 501 | Organometallic compounds | 18 | 791 | 518 | 361 |
| 502 | Sun | 11 | 789 | 263 | 171 |
| 503 | Wireless Communication Systems | 34 | 788 | 511 | 406 |
| 504 | Speech Disorders | 24 | 785 | 336 | 308 |
| 505 | Natural resources | 18 | 784 | 242 | 224 |
| 506 | Electromagnetism | 9 | 782 | 468 | 113 |
| 507 | Emergency Medicine | 27 | 781 | 485 | 377 |
| 508 | Australia | 20 | 777 | 657 | 360 |
| 509 | genome | 12 | 775 | 877 | 923 |
| 510 | Wildlife conservation | 21 | 774 | 419 | 519 |
| 511 | Population Genetics | 13 | 769 | 658 | 570 |
| 512 | Inflammation | 18 | 768 | 445 | 417 |
| 513 | Family Therapy | 21 | 764 | 209 | 142 |
| 514 | Conservation Biology | 9 | 763 | 707 | 439 |
| 514 | Adolescent | 17 | 763 | 915 | 617 |
| 516 | Organizational Behavior | 9 | 760 | 336 | 239 |
| 517 | Linguistics | 49 | 758 | 308 | 311 |
| 518 | Public Policy | 41 | 757 | 353 | 516 |
| 519 | Geriatric Pharmacology | 15 | 756 | 60 | 32 |
| 520 | Nonlinear functional analysis | 42 | 755 | 147 | 203 |
| 521 | Biosensors | 9 | 754 | 809 | 609 |
| 521 | Multivariate Analysis | 21 | 754 | 96 | 95 |
| 521 | Bioelectronics | 9 | 754 | 644 | 539 |
| 524 | Antibacterial agents | 24 | 744 | 98 | 154 |
| 525 | Radiology | 42 | 742 | 307 | 338 |
| 526 | Physical Geography | 5 | 739 | 471 | 82 |
| 527 | adolescence | 9 | 725 | 526 | 318 |
| 527 | Neuromuscular diseases | 18 | 725 | 229 | 215 |
| 529 | industrial hygiene | 35 | 723 | 172 | 127 |
| 530 | Genetic Toxicology | 9 | 719 | 201 | 125 |
| 530 | Plant genetic engineering | 15 | 719 | 404 | 378 |
| 532 | consumer behavior | 8 | 718 | 277 | 164 |
| 533 | Gerontology | 38 | 717 | 500 | 548 |
| 534 | Manufacturing Processes | 18 | 716 | 1060 | 806 |
| 535 | Electrical Engineering | 88 | 714 | 595 | 688 |
| 536 | Proteome | 16 | 712 | 516 | 548 |
| 537 | Industrial Organization | 15 | 711 | 58 | 38 |
| 538 | Aquaculture | 18 | 707 | 618 | 481 |
| 539 | France | 31 | 703 | 40 | 15 |
| 540 | Cryptography | 15 | 701 | 204 | 49 |
| 541 | Wireless Communication | 22 | 700 | 32 | 18 |
| 542 | Animal ecology | 17 | 693 | 515 | 443 |
| 542 | pain management | 37 | 693 | 73 | 128 |
| 544 | Telecommunication | 40 | 692 | 515 | 496 |
| 545 | income distribution | 18 | 686 | 6 | 41 |
| 545 | biochemical markers | 22 | 686 | 127 | 77 |
| 547 | Teaching | 19 | 684 | 621 | 421 |
| 548 | Information Systems | 32 | 681 | 219 | 365 |
| 548 | Public Finance | 38 | 681 | 1 | 1 |
| 550 | medical education | 34 | 675 | 476 | 524 |
| 551 | Hemostasis | 35 | 673 | 120 | 182 |
| 551 | Respiratory system | 14 | 673 | 208 | 163 |
| 553 | Mechanics | 16 | 668 | 562 | 287 |
| 554 | Globalization | 9 | 667 | 247 | 83 |
| 555 | Neurotoxicology | 8 | 658 | 290 | 125 |
| 556 | Cardiovascular diseases | 19 | 652 | 697 | 589 |
| 557 | clay minerals | 19 | 650 | 53 | 66 |
| 557 | Chromatographic analysis | 19 | 650 | 768 | 503 |
| 559 | Biometrics | 27 | 648 | 338 | 363 |
| 560 | cell interaction | 15 | 644 | 476 | 428 |
| 561 | Fisheries | 10 | 643 | 1048 | 598 |
| 562 | child mental health | 12 | 638 | 185 | 76 |
| 563 | Venture Capital | 3 | 635 | 303 | 223 |
| 564 | city planning | 26 | 632 | 485 | 478 |
| 565 | Sleep Disorders | 33 | 628 | 522 | 660 |
| 565 | Sleep | 33 | 628 | 512 | 662 |
| 567 | soil management | 21 | 627 | 117 | 180 |
| 568 | Community Psychiatry | 17 | 625 | 356 | 355 |
| 569 | Environmental Chemistry | 18 | 623 | 866 | 1162 |
| 570 | Chromatography | 15 | 620 | 757 | 460 |
| 570 | foreign exchange | 11 | 620 | 109 | 89 |
| 572 | Metallography | 10 | 618 | 431 | 182 |
| 573 | Computer Vision | 8 | 615 | 760 | 531 |
| 574 | Microscopy | 20 | 612 | 571 | 426 |
| 575 | commerce | 23 | 609 | 444 | 554 |
| 576 | Information Science | 24 | 605 | 802 | 957 |
| 577 | Africa | 43 | 604 | 250 | 262 |
| 578 | Personality Assessment | 9 | 603 | 306 | 227 |
| 579 | viral genetics | 3 | 602 | 404 | 343 |
| 580 | Social problems | 10 | 600 | 292 | 201 |
| 581 | Database Management | 3 | 596 | 908 | 309 |
| 581 | Quality of life | 20 | 596 | 458 | 578 |
| 583 | Calculus of Variations | 17 | 593 | 162 | 65 |
| 584 | cell membrane | 14 | 589 | 291 | 273 |
| 585 | Chemical processes | 13 | 588 | 229 | 116 |
| 586 | Catalysts | 22 | 586 | 126 | 156 |
| 587 | Speech | 11 | 581 | 443 | 334 |
| 588 | Information Theory | 13 | 579 | 597 | 362 |
| 589 | Software Engineering | 20 | 576 | 323 | 211 |
| 589 | Adolescent Psychology | 13 | 576 | 377 | 345 |
| 591 | Hemodynamics | 20 | 575 | 213 | 352 |
| 592 | Magnetic Resonance Imaging | 15 | 574 | 162 | 136 |
| 593 | Fixed Point Theory | 9 | 572 | 111 | 13 |
| 594 | Neuropsychiatry | 14 | 571 | 390 | 349 |
| 594 | international trade | 20 | 571 | 132 | 173 |
| 596 | Zeolites | 20 | 567 | 261 | 345 |
| 596 | mutagens | 10 | 567 | 468 | 440 |
| 598 | Hydrodynamics | 9 | 563 | 344 | 216 |
| 599 | Harmonic Analysis | 7 | 561 | 73 | 36 |
| 600 | taxation | 20 | 560 | 12 | 23 |
| 601 | Energy Conversion | 12 | 558 | 690 | 862 |
| 602 | Communication Policy | 6 | 557 | 28 | 8 |
| 602 | Telecommunication Policy | 6 | 557 | 28 | 8 |
| 604 | Orthopedic Surgery | 4 | 556 | 879 | 293 |
| 604 | Volcanoes | 9 | 556 | 148 | 101 |
| 606 | Photochemistry | 23 | 554 | 545 | 677 |
| 607 | Research Design | 22 | 553 | 362 | 479 |
| 608 | embryonic development | 15 | 552 | 119 | 114 |
| 609 | feeding behavior | 8 | 550 | 456 | 279 |
| 609 | Appetite | 8 | 550 | 388 | 239 |
| 611 | Religion | 21 | 547 | 277 | 58 |
| 611 | Food additives | 16 | 547 | 420 | 487 |
| 613 | mass transfer | 12 | 536 | 926 | 740 |
| 613 | China | 13 | 536 | 1642 | 970 |
| 615 | Water quality management | 32 | 535 | 430 | 601 |
| 615 | industrial relations | 34 | 535 | 160 | 205 |
| 617 | International Relations | 41 | 531 | 241 | 289 |
| 617 | Lipid metabolism | 11 | 531 | 137 | 154 |
| 617 | Lipid | 11 | 531 | 140 | 156 |
| 620 | Carcinogenesis | 11 | 530 | 515 | 503 |
| 621 | Computer Graphics | 19 | 527 | 650 | 607 |
| 622 | analysis | 7 | 525 | 255 | 149 |
| 623 | Agricultural systems | 10 | 524 | 138 | 135 |
| 624 | Strategic planning | 14 | 518 | 226 | 232 |
| 624 | coal | 15 | 518 | 714 | 845 |
| 624 | Bacterial diseases | 2 | 518 | 418 | 38 |
| 627 | Labor Economics | 21 | 516 | 87 | 144 |
| 628 | Plant breeding | 22 | 515 | 223 | 257 |
| 628 | carcinogens | 11 | 515 | 510 | 491 |
| 630 | European integration | 13 | 510 | 78 | 60 |
| 630 | European Economic Community | 13 | 510 | 77 | 60 |
| 632 | Geriatric Oncology | 12 | 509 | 231 | 211 |
| 633 | Global Health | 21 | 508 | 280 | 222 |
| 634 | Molecular evolution | 14 | 506 | 748 | 868 |
| 635 | Photobiology | 20 | 505 | 372 | 472 |
| 636 | Radioisotopes | 30 | 504 | 265 | 259 |
| 637 | natural products | 19 | 500 | 662 | 610 |
| 637 | Steroids | 40 | 500 | 154 | 411 |
| 639 | Microeconomics | 10 | 497 | 140 | 114 |
| 640 | vitamin C | 13 | 495 | 85 | 126 |
| 640 | vitamin E | 13 | 495 | 85 | 126 |
| 642 | Quality Control | 16 | 494 | 658 | 642 |
| 643 | Anxiety Disorders | 6 | 493 | 379 | 346 |
| 643 | Anxiety | 6 | 493 | 380 | 350 |
| 645 | Memory disorders | 7 | 492 | 134 | 59 |
| 646 | Nonprofit organizations | 9 | 482 | 132 | 67 |
| 647 | Algebra | 79 | 481 | 183 | 290 |
| 647 | protein | 19 | 481 | 513 | 616 |
| 649 | Psychoneuroimmunology | 5 | 480 | 530 | 351 |
| 649 | Neuroimmunology | 5 | 480 | 598 | 386 |
| 649 | Combinatorial analysis | 7 | 480 | 818 | 212 |
| 652 | cosmic rays | 17 | 477 | 157 | 101 |
| 653 | Immunogenetics | 13 | 476 | 324 | 281 |
| 653 | Mites | 24 | 476 | 82 | 73 |
| 655 | brain mapping | 11 | 474 | 365 | 419 |
| 656 | Sarcopenia | 12 | 473 | 105 | 193 |
| 657 | Hearing | 7 | 471 | 477 | 245 |
| 658 | Cytokine | 9 | 468 | 161 | 185 |
| 659 | Social Choice Theory | 24 | 466 | 17 | 25 |
| 660 | Adaptive control systems | 8 | 461 | 300 | 90 |
| 661 | Radiography | 5 | 460 | 565 | 280 |
| 662 | Birth control | 4 | 456 | 425 | 152 |
| 663 | Animal breeding | 11 | 455 | 429 | 287 |
| 664 | vascular diseases | 5 | 451 | 652 | 438 |
| 665 | Dynamics | 32 | 450 | 444 | 498 |
| 665 | Genetic markers | 16 | 450 | 11 | 10 |
| 667 | voice | 21 | 447 | 107 | 110 |
| 668 | Stochastic Processes | 19 | 446 | 263 | 184 |
| 669 | Mental Health | 25 | 443 | 493 | 609 |
| 670 | Humanities | 18 | 442 | 654 | 254 |
| 670 | Adolescent Medicine | 5 | 442 | 529 | 531 |
| 672 | epidemiologic methods | 3 | 441 | 179 | 11 |
| 672 | Radio | 15 | 441 | 341 | 233 |
| 672 | drug evaluation | 13 | 441 | 577 | 462 |
| 675 | Risk | 9 | 439 | 319 | 252 |
| 675 | environmental issues | 10 | 439 | 147 | 117 |
| 677 | Microbial Biotechnology | 9 | 437 | 471 | 312 |
| 677 | Economic planning | 20 | 437 | 63 | 109 |
| 679 | Psychiatric Epidemiology | 11 | 436 | 204 | 227 |
| 680 | Communication | 14 | 435 | 993 | 758 |
| 681 | Drug delivery devices | 3 | 434 | 168 | 41 |
| 682 | Continental shelf | 12 | 432 | 167 | 178 |
| 682 | cloning | 11 | 432 | 324 | 534 |
| 684 | Demographic research | 10 | 428 | 55 | 84 |
| 685 | histological techniques | 13 | 427 | 340 | 397 |
| 685 | Vocational guidance | 8 | 427 | 529 | 447 |
| 687 | Radio wave propagation | 19 | 426 | 246 | 166 |
| 688 | Anthropology | 15 | 419 | 755 | 550 |
| 689 | language | 14 | 418 | 311 | 327 |
| 690 | Bone diseases | 3 | 417 | 581 | 330 |
| 691 | Heat Exchangers | 5 | 416 | 1052 | 647 |
| 692 | Industrial Engineering | 23 | 415 | 630 | 853 |
| 692 | Paleoceanography | 8 | 415 | 124 | 161 |
| 692 | Ticks | 20 | 415 | 60 | 66 |
| 695 | Social Change | 7 | 413 | 623 | 590 |
| 696 | Investments | 3 | 412 | 657 | 86 |
| 697 | Asia | 15 | 411 | 1275 | 807 |
| 698 | immigration | 10 | 409 | 52 | 70 |
| 698 | migration policy | 10 | 409 | 58 | 71 |
| 698 | Asylum seeker | 10 | 409 | 45 | 70 |
| 701 | Music | 17 | 403 | 302 | 206 |
| 702 | Structuralism | 3 | 402 | 151 | 92 |
| 702 | Social Networks | 3 | 402 | 328 | 99 |
| 702 | Second Language Acquisition | 4 | 402 | 161 | 92 |
| 705 | Computational Fluid Dynamics | 12 | 397 | 274 | 208 |
| 706 | Growth factors | 5 | 396 | 173 | 194 |
| 707 | Acarology | 15 | 395 | 69 | 69 |
| 707 | Acari | 15 | 395 | 69 | 69 |
| 709 | blood transfusion | 11 | 394 | 428 | 298 |
| 710 | organization | 5 | 392 | 634 | 497 |
| 711 | Electron Microscopy | 11 | 388 | 174 | 87 |
| 712 | Evolutionary Genetics | 7 | 386 | 365 | 206 |
| 712 | Molecular Epidemiology | 7 | 386 | 365 | 206 |
| 712 | Japan | 11 | 386 | 1099 | 578 |
| 715 | Animal Nutrition | 14 | 385 | 231 | 212 |
| 716 | innovation | 11 | 383 | 256 | 452 |
| 717 | Transgenic plants | 10 | 382 | 190 | 211 |
| 718 | liver | 11 | 378 | 101 | 69 |
| 719 | Forecasting | 13 | 377 | 152 | 191 |
| 719 | Nonlinear systems | 8 | 377 | 347 | 184 |
| 721 | Biodegradation | 8 | 376 | 361 | 296 |
| 721 | Coral reef biology | 4 | 376 | 320 | 172 |
| 723 | Systems Biology | 21 | 374 | 545 | 779 |
| 723 | Positive Psychology | 2 | 374 | 222 | 90 |
| 723 | Cosmochemistry | 12 | 374 | 457 | 527 |
| 726 | Fermentation | 19 | 372 | 72 | 71 |
| 726 | Human evolution | 5 | 372 | 358 | 267 |
| 728 | Experimental Psychology | 11 | 369 | 294 | 300 |
| 728 | Water Microbiology | 7 | 369 | 201 | 123 |
| 728 | Fouling | 7 | 369 | 101 | 77 |
| 731 | Logistics | 4 | 367 | 484 | 248 |
| 732 | concrete | 5 | 366 | 913 | 676 |
| 732 | Cement | 5 | 366 | 522 | 461 |
| 734 | fuel cells | 9 | 365 | 890 | 934 |
| 735 | drug resistance | 6 | 364 | 476 | 279 |
| 736 | Synaptic Transmission | 3 | 361 | 589 | 230 |
| 737 | Public Administration | 33 | 360 | 342 | 518 |
| 737 | Engineering Geology | 17 | 360 | 617 | 781 |
| 739 | Enzyme | 11 | 354 | 180 | 253 |
| 740 | Elections | 15 | 352 | 110 | 105 |
| 741 | economic forecasting | 7 | 349 | 161 | 149 |
| 741 | Autoimmunity | 12 | 349 | 373 | 545 |
| 743 | child abuse | 1 | 346 | 1590 | 486 |
| 744 | Artificial Organs | 5 | 344 | 608 | 238 |
| 745 | Climate | 8 | 343 | 337 | 314 |
| 746 | Hematopoietic stem cell transplantation | 4 | 342 | 422 | 229 |
| 746 | air | 7 | 342 | 109 | 132 |
| 746 | software | 12 | 342 | 355 | 475 |
| 749 | Renewable Energy Sources | 9 | 340 | 1816 | 2336 |
| 750 | Language Acquisition | 7 | 338 | 265 | 171 |
| 751 | Ecosystem management | 5 | 337 | 571 | 362 |
| 752 | Bacteria | 6 | 336 | 254 | 294 |
| 753 | Ecological Engineering | 9 | 335 | 288 | 342 |
| 753 | Adhesion | 8 | 335 | 336 | 166 |
| 753 | Radio waves | 13 | 335 | 142 | 80 |
| 753 | adhesives | 8 | 335 | 370 | 168 |
| 757 | health planning | 32 | 333 | 508 | 917 |
| 758 | Plant Genetics | 8 | 331 | 456 | 544 |
| 758 | Decision making | 13 | 331 | 674 | 714 |
| 760 | Autoimmune diseases | 9 | 329 | 341 | 394 |
| 761 | Mineralogy | 12 | 323 | 797 | 777 |
| 761 | Solar Energy | 12 | 323 | 888 | 1155 |
| 761 | Waste management | 27 | 323 | 308 | 549 |
| 764 | Intelligence | 5 | 321 | 200 | 150 |
| 764 | cooperation | 26 | 321 | 5 | 8 |
| 766 | transgenic organisms | 9 | 319 | 73 | 98 |
| 767 | Immunopharmacology | 9 | 316 | 576 | 504 |
| 768 | Liposomes | 11 | 312 | 218 | 283 |
| 768 | Lipid bilayers | 11 | 312 | 188 | 260 |
| 770 | Securities | 4 | 311 | 253 | 104 |
| 771 | Corporate governance | 8 | 310 | 263 | 228 |
| 772 | North America | 11 | 309 | 410 | 293 |
| 773 | Europa | 17 | 305 | 128 | 207 |
| 774 | Freeze-Drying | 19 | 304 | 83 | 135 |
| 774 | Hypothermia | 19 | 304 | 83 | 135 |
| 774 | Freeze Drying | 19 | 304 | 83 | 135 |
| 777 | Development Economics | 5 | 301 | 355 | 201 |
| 778 | Animal genetics | 12 | 300 | 274 | 294 |
| 779 | Comparative Physiology | 17 | 298 | 349 | 465 |
| 779 | Plasma chemistry | 13 | 298 | 139 | 162 |
| 781 | population trends | 3 | 297 | 80 | 88 |
| 782 | Topology | 39 | 296 | 25 | 79 |
| 783 | environmental indicators | 6 | 294 | 876 | 794 |
| 783 | food contamination | 9 | 294 | 515 | 360 |
| 785 | Export Marketing | 1 | 292 | 466 | 126 |
| 786 | Photonics | 9 | 290 | 1210 | 1324 |
| 787 | Extreme Value Theory | 13 | 289 | 9 | 10 |
| 788 | soil conservation | 10 | 288 | 344 | 402 |
| 788 | Regional Development | 17 | 288 | 41 | 121 |
| 788 | Development planning | 17 | 288 | 19 | 105 |
| 788 | Auditing | 5 | 288 | 298 | 192 |
| 792 | amino acids | 8 | 287 | 275 | 276 |
| 793 | Crystallography | 30 | 283 | 545 | 604 |
| 794 | Philosophy | 72 | 281 | 325 | 440 |
| 795 | Plant Biotechnology | 4 | 280 | 811 | 480 |
| 796 | bees | 5 | 278 | 316 | 188 |
| 796 | Zoonoses | 5 | 278 | 218 | 138 |
| 798 | tomography | 11 | 277 | 155 | 134 |
| 799 | Insect biochemistry | 3 | 276 | 518 | 287 |
| 800 | Medical Imaging | 4 | 272 | 315 | 196 |
| 800 | transgenic animals | 8 | 272 | 77 | 131 |
| 800 | Women's health | 7 | 272 | 927 | 671 |
| 803 | families | 12 | 271 | 380 | 340 |
| 804 | Proteomics | 7 | 270 | 857 | 908 |
| 805 | Chemical industry | 14 | 268 | 614 | 556 |
| 806 | cardiac catheterization | 9 | 265 | 563 | 420 |
| 807 | Molecular recognition | 3 | 264 | 226 | 63 |
| 808 | Social History | 10 | 263 | 255 | 110 |
| 808 | Ceramic materials | 10 | 263 | 784 | 729 |
| 808 | Government policy | 2 | 263 | 252 | 99 |
| 808 | Post-traumatic stress disorder | 9 | 263 | 434 | 500 |
| 812 | Architecture | 11 | 262 | 270 | 140 |
| 812 | pharmaceutical industry | 7 | 262 | 366 | 199 |
| 814 | cell adhesion molecules | 5 | 260 | 407 | 299 |
| 814 | Cell communication | 5 | 260 | 683 | 568 |
| 816 | solar cells | 5 | 259 | 794 | 726 |
| 817 | health services accessibility | 12 | 258 | 429 | 483 |
| 817 | Gastrointestinal diseases | 7 | 258 | 463 | 285 |
| 819 | individual differences | 5 | 257 | 196 | 176 |
| 820 | food handling | 7 | 256 | 548 | 606 |
| 821 | Bilingualism | 2 | 254 | 282 | 110 |
| 822 | Sexual health | 7 | 252 | 534 | 397 |
| 823 | Marine Meteorology | 4 | 251 | 357 | 274 |
| 823 | Raman spectroscopy | 5 | 251 | 712 | 419 |
| 825 | Nuclear Energy | 20 | 249 | 414 | 504 |
| 825 | Cardiovascular Pharmacology | 3 | 249 | 329 | 109 |
| 825 | Neuroplasticity | 4 | 249 | 328 | 142 |
| 825 | neuronal plasticity | 4 | 249 | 247 | 121 |
| 829 | Atmospheric Physics | 14 | 248 | 918 | 1280 |
| 829 | Middle East | 7 | 248 | 667 | 276 |
| 831 | Population Dynamics | 3 | 246 | 193 | 75 |
| 832 | Nanoelectronics | 26 | 244 | 193 | 309 |
| 832 | Mental Health Services | 8 | 244 | 853 | 709 |
| 834 | Plasma polymerization | 11 | 243 | 97 | 139 |
| 835 | Geographic information systems | 16 | 241 | 342 | 438 |
| 835 | Recycling | 6 | 241 | 374 | 656 |
| 837 | Extracellular matrix | 2 | 238 | 398 | 261 |
| 837 | Semiconductor industry | 25 | 238 | 141 | 248 |
| 837 | collagen | 2 | 238 | 417 | 272 |
| 840 | Building Materials | 7 | 237 | 1355 | 1510 |
| 840 | Infrared spectroscopy | 4 | 237 | 258 | 109 |
| 840 | tillage | 10 | 237 | 175 | 362 |
| 843 | Soil | 9 | 236 | 31 | 64 |
| 844 | warfare | 9 | 234 | 137 | 205 |
| 845 | Nuclear Engineering | 21 | 232 | 498 | 523 |
| 845 | Organic Geochemistry | 5 | 232 | 311 | 325 |
| 847 | Oxidative stress | 11 | 231 | 538 | 1071 |
| 847 | Reading | 8 | 231 | 344 | 299 |
| 847 | Phylogeny | 6 | 231 | 705 | 793 |
| 850 | Law | 21 | 230 | 586 | 367 |
| 851 | Long-Term Care | 9 | 229 | 297 | 443 |
| 851 | Long-term care facilities | 9 | 229 | 294 | 442 |
| 853 | Glaciology | 5 | 228 | 177 | 126 |
| 853 | Quantum Chemistry | 11 | 228 | 479 | 387 |
| 853 | glaciers | 5 | 228 | 163 | 125 |
| 856 | Endocrine glands | 6 | 226 | 164 | 381 |
| 857 | Vocational Education | 10 | 224 | 255 | 231 |
| 857 | Labor Movement | 15 | 224 | 30 | 17 |
| 859 | Political Parties | 7 | 223 | 101 | 99 |
| 860 | Ferroelectricity | 7 | 221 | 711 | 338 |
| 860 | Ethnology | 20 | 221 | 502 | 658 |
| 862 | glycoproteins | 4 | 220 | 457 | 380 |
| 862 | Glycoconjugates | 4 | 220 | 457 | 380 |
| 862 | Writing | 7 | 220 | 133 | 138 |
| 862 | Germany | 13 | 220 | 250 | 130 |
| 862 | glycolipids | 4 | 220 | 457 | 380 |
| 867 | disaster relief | 10 | 219 | 52 | 86 |
| 868 | Radiation Protection | 20 | 217 | 175 | 175 |
| 869 | Social interaction | 3 | 216 | 338 | 199 |
| 870 | Robotics | 8 | 215 | 1195 | 1090 |
| 871 | Foodborne diseases | 4 | 214 | 242 | 133 |
| 872 | Database Security | 6 | 213 | 33 | 13 |
| 872 | catalytic activity | 4 | 213 | 646 | 494 |
| 874 | Cognitive Therapy | 8 | 212 | 374 | 404 |
| 874 | construction | 6 | 212 | 106 | 120 |
| 876 | Water Purification | 20 | 211 | 317 | 634 |
| 877 | Archaeology | 20 | 210 | 552 | 766 |
| 878 | preventive medicine | 7 | 208 | 990 | 1122 |
| 878 | curriculum evaluation | 8 | 208 | 158 | 156 |
| 878 | econometric models | 18 | 208 | 84 | 355 |
| 881 | Computer Architecture | 5 | 207 | 388 | 173 |
| 881 | Genetic translocation | 11 | 207 | 36 | 117 |
| 881 | plasmids | 11 | 207 | 36 | 117 |
| 884 | Thorax | 7 | 206 | 322 | 411 |
| 885 | Autoantibodies | 8 | 205 | 344 | 526 |
| 885 | planning | 7 | 205 | 425 | 312 |
| 887 | Paleoecology | 10 | 202 | 646 | 842 |
| 887 | Political Sociology | 5 | 202 | 362 | 258 |
| 887 | Socialism | 2 | 202 | 289 | 68 |
| 887 | Capitalism | 2 | 202 | 269 | 59 |
| 891 | refugees | 9 | 201 | 84 | 82 |
| 892 | Economic Geography | 4 | 200 | 318 | 186 |
| 892 | Veterinary Pathology | 4 | 200 | 362 | 147 |
| 892 | radiation monitoring | 13 | 200 | 220 | 179 |
| 892 | Heart Failure | 4 | 200 | 423 | 423 |
| 892 | Radiation dosimetry | 12 | 200 | 176 | 116 |
| 897 | DNA methylation | 5 | 199 | 184 | 249 |
| 898 | Geriatric Psychiatry | 5 | 198 | 969 | 871 |
| 898 | anesthesia | 13 | 198 | 187 | 147 |
| 900 | Human Geography | 15 | 197 | 476 | 624 |
| 900 | Happiness | 4 | 197 | 356 | 261 |
| 902 | forest policy | 6 | 196 | 235 | 201 |
| 902 | educational planning | 5 | 196 | 292 | 264 |
| 904 | Imaging systems | 10 | 194 | 342 | 282 |
| 905 | Intercultural Communication | 3 | 193 | 417 | 203 |
| 905 | Cross-Cultural Studies | 3 | 193 | 763 | 336 |
| 905 | motivation | 3 | 193 | 359 | 254 |
| 905 | Emotion | 3 | 193 | 217 | 200 |
| 909 | Developmental Immunology | 6 | 192 | 599 | 608 |
| 910 | radioactive waste | 4 | 191 | 742 | 943 |
| 910 | industrial waste | 4 | 191 | 784 | 940 |
| 910 | Hazardous waste | 4 | 191 | 909 | 1013 |
| 913 | Energy Storage | 8 | 190 | 888 | 1012 |
| 913 | Evolutionary economics | 1 | 190 | 378 | 88 |
| 913 | Alzheimer's disease | 63 | 190 | 316 | 984 |
| 913 | Creativity | 11 | 190 | 54 | 152 |
| 917 | Neonatology | 5 | 189 | 530 | 396 |
| 918 | Macroeconomics | 9 | 188 | 166 | 187 |
| 918 | patents | 3 | 188 | 127 | 18 |
| 920 | Histochemistry | 10 | 187 | 636 | 772 |
| 920 | Bioinformatics | 13 | 187 | 1099 | 1819 |
| 920 | animals | 8 | 187 | 887 | 714 |
| 920 | Federal government | 13 | 187 | 20 | 42 |
| 924 | Radiochemistry | 22 | 185 | 349 | 509 |
| 924 | War | 8 | 185 | 70 | 66 |
| 924 | ovary | 5 | 185 | 114 | 80 |
| 924 | Building | 5 | 185 | 616 | 358 |
| 928 | Geriatric Medicine | 10 | 184 | 37 | 75 |
| 928 | Psychometrics | 10 | 184 | 243 | 348 |
| 928 | land degradation | 7 | 184 | 254 | 354 |
| 928 | degradation | 7 | 184 | 254 | 354 |
| 932 | Hydrogeology | 4 | 183 | 778 | 499 |
| 933 | Telecommunication Systems | 14 | 182 | 719 | 941 |
| 933 | Neurotransmitters | 18 | 182 | 159 | 336 |
| 935 | Computer-Aided Design | 17 | 181 | 416 | 811 |
| 935 | Culture | 17 | 181 | 388 | 443 |
| 937 | World Bank | 3 | 180 | 40 | 43 |
| 937 | Minerals | 4 | 180 | 757 | 479 |
| 937 | stocks | 3 | 180 | 111 | 78 |
| 940 | Information Technology | 19 | 178 | 959 | 1553 |
| 940 | Fertilizers | 5 | 178 | 301 | 272 |
| 942 | Transport | 3 | 177 | 713 | 527 |
| 942 | hygiene | 4 | 177 | 499 | 352 |
| 944 | Otolaryngology | 4 | 176 | 598 | 423 |
| 944 | Rural Development | 4 | 176 | 547 | 355 |
| 946 | Ethnic relations | 6 | 175 | 400 | 220 |
| 947 | Child welfare | 3 | 174 | 1284 | 706 |
| 948 | Urban Policy | 2 | 173 | 1120 | 625 |
| 948 | Maternal health services | 2 | 173 | 638 | 284 |
| 948 | Biomarkers | 5 | 173 | 293 | 182 |
| 948 | Soil ecology | 10 | 173 | 397 | 749 |
| 952 | health services | 6 | 172 | 835 | 723 |
| 953 | Paleogeography | 9 | 171 | 588 | 847 |
| 954 | Discourse Analysis | 7 | 170 | 209 | 233 |
| 954 | Religion and Psychology | 12 | 170 | 134 | 176 |
| 954 | sports administration | 6 | 170 | 170 | 148 |
| 954 | freshwater biology | 4 | 170 | 940 | 692 |
| 954 | Quantum theory | 17 | 170 | 423 | 721 |
| 959 | Systems Engineering | 14 | 169 | 1046 | 1348 |
| 959 | Social perception | 6 | 169 | 71 | 114 |
| 959 | Regionalism | 12 | 169 | 50 | 107 |
| 959 | Simulation Methods | 19 | 169 | 195 | 561 |
| 959 | Performance | 3 | 169 | 315 | 237 |
| 964 | Probability | 6 | 168 | 460 | 461 |
| 964 | Health promotion | 9 | 168 | 921 | 1203 |
| 964 | race relations | 7 | 168 | 347 | 323 |
| 967 | Geometry | 15 | 167 | 623 | 538 |
| 967 | Genes | 5 | 167 | 1033 | 919 |
| 969 | Neurolinguistics | 8 | 166 | 248 | 434 |
| 969 | Consciousness | 7 | 166 | 295 | 358 |
| 971 | Paleontology | 9 | 164 | 920 | 926 |
| 971 | Emerging infectious diseases | 3 | 164 | 383 | 256 |
| 971 | poverty | 8 | 164 | 161 | 242 |
| 974 | Systems Analysis | 10 | 163 | 574 | 717 |
| 974 | behavior modification | 2 | 163 | 496 | 426 |
| 976 | Applied Linguistics | 20 | 162 | 132 | 301 |
| 976 | Nuclear Chemistry | 11 | 162 | 644 | 643 |
| 976 | Exercise | 9 | 162 | 837 | 907 |
| 979 | Microwaves | 29 | 161 | 331 | 512 |
| 980 | children | 6 | 160 | 382 | 441 |
| 981 | Experimental Design | 4 | 158 | 245 | 240 |
| 981 | Asthma | 6 | 158 | 526 | 471 |
| 981 | Comparative Education | 2 | 158 | 387 | 72 |
| 981 | particles | 5 | 158 | 844 | 692 |
| 985 | Carbohydrates | 4 | 157 | 440 | 459 |
| 986 | Protozoa | 3 | 156 | 499 | 372 |
| 987 | Plant Morphology | 6 | 155 | 420 | 373 |
| 987 | Animal Physiology | 6 | 155 | 112 | 142 |
| 987 | Natural selection | 6 | 155 | 112 | 142 |
| 987 | Polymer Networks | 1 | 155 | 40 | 7 |
| 987 | Polymer Colloids | 1 | 155 | 40 | 7 |
| 987 | genetic selection | 6 | 155 | 112 | 142 |
| 993 | Morphology | 5 | 153 | 753 | 543 |
| 993 | Ethnic Conflict | 5 | 153 | 180 | 169 |
| 993 | Chemical kinetics | 10 | 153 | 370 | 305 |
| 993 | forced migration | 5 | 153 | 180 | 169 |
| 997 | Palliative Care | 6 | 152 | 725 | 639 |
| 997 | Plant tissue culture | 6 | 152 | 555 | 633 |
| 997 | Plant cell culture | 5 | 152 | 558 | 628 |
| 1000 | Psychosomatic Medicine | 10 | 151 | 457 | 847 |