| 1 | Physics | 1,159 | 93.7K | 407 | 356 |
| 2 | Science | 924 | 88.0K | 399 | 349 |
| 3 | Biology | 815 | 76.7K | 434 | 396 |
| 4 | Biochemistry | 1,492 | 69.5K | 283 | 251 |
| 5 | Chemistry | 1,198 | 54.6K | 361 | 407 |
| 6 | Medicine | 920 | 52.6K | 426 | 348 |
| 7 | Molecular Biology | 766 | 50.8K | 359 | 316 |
| 8 | Microbiology | 712 | 49.0K | 254 | 210 |
| 9 | Neurology | 605 | 40.0K | 319 | 279 |
| 10 | Nuclear Physics | 951 | 38.2K | 262 | 234 |
| 11 | Natural history | 146 | 34.1K | 437 | 444 |
| 12 | Research | 690 | 29.3K | 395 | 335 |
| 13 | Immunology | 393 | 24.2K | 246 | 250 |
| 14 | Catalysis | 616 | 23.7K | 96 | 142 |
| 15 | Diabetes | 296 | 23.0K | 75 | 76 |
| 16 | Materials | 382 | 23.0K | 504 | 354 |
| 17 | Economics | 626 | 22.2K | 73 | 92 |
| 18 | Ecology | 356 | 22.0K | 456 | 442 |
| 19 | Diabetes mellitus | 282 | 21.9K | 63 | 73 |
| 20 | Public Health | 368 | 21.5K | 296 | 206 |
| 21 | Cytology | 271 | 21.1K | 395 | 410 |
| 22 | Pharmacology | 440 | 20.8K | 329 | 211 |
| 23 | Polymers | 503 | 19.3K | 202 | 167 |
| 24 | Environment | 230 | 19.1K | 369 | 328 |
| 25 | Nanotechnology | 299 | 18.6K | 405 | 339 |
| 26 | Biophysics | 473 | 17.6K | 352 | 278 |
| 27 | Solid State Physics | 316 | 17.6K | 428 | 244 |
| 28 | Cell Biology | 218 | 17.4K | 426 | 469 |
| 29 | Condensed Matter | 251 | 17.3K | 492 | 267 |
| 30 | Statistical Mechanics | 34 | 16.6K | 238 | 5 |
| 31 | Metabolism | 358 | 16.5K | 125 | 174 |
| 32 | Endocrinology | 268 | 15.8K | 225 | 217 |
| 33 | Biotechnology | 279 | 15.8K | 431 | 407 |
| 34 | Cancer | 231 | 15.7K | 364 | 272 |
| 35 | Metabolic diseases | 290 | 15.4K | 117 | 154 |
| 36 | Epidemiology | 255 | 15.4K | 242 | 154 |
| 37 | fertility | 197 | 15.4K | 48 | 13 |
| 38 | Infertility | 191 | 15.1K | 47 | 13 |
| 39 | Psychology | 378 | 15.0K | 269 | 261 |
| 40 | Social Psychology | 218 | 14.8K | 109 | 91 |
| 41 | Materials Science | 136 | 14.8K | 707 | 284 |
| 42 | Botany | 217 | 14.8K | 409 | 281 |
| 43 | Environmental Health | 301 | 14.5K | 278 | 300 |
| 44 | Physiology | 375 | 14.4K | 210 | 235 |
| 45 | Human genetics | 80 | 13.9K | 446 | 505 |
| 46 | Meteorology | 188 | 13.8K | 217 | 157 |
| 47 | Hematology | 248 | 13.3K | 474 | 270 |
| 48 | Environmental Policy | 96 | 13.3K | 312 | 93 |
| 49 | Econometrics | 149 | 13.2K | 50 | 37 |
| 50 | Toxicology | 318 | 13.1K | 237 | 200 |
| 51 | Medical genetics | 161 | 12.7K | 344 | 273 |
| 52 | polymerization | 380 | 12.5K | 210 | 202 |
| 53 | Genetics | 186 | 12.4K | 396 | 421 |
| 54 | Neurophysiology | 218 | 12.3K | 253 | 295 |
| 55 | Climatology | 161 | 11.6K | 145 | 109 |
| 56 | Mathematics | 536 | 11.6K | 343 | 202 |
| 57 | Europe | 420 | 11.5K | 70 | 44 |
| 58 | Soil Science | 211 | 11.5K | 63 | 46 |
| 59 | Pollution | 172 | 11.4K | 590 | 485 |
| 60 | Metallurgy | 125 | 11.1K | 279 | 116 |
| 61 | Spectrum analysis | 176 | 11.0K | 581 | 528 |
| 62 | Cognition | 171 | 10.8K | 99 | 69 |
| 63 | Nutrition | 144 | 10.7K | 500 | 263 |
| 64 | Nervous system | 153 | 10.4K | 179 | 164 |
| 65 | Psychophysiology | 232 | 10.0K | 221 | 254 |
| 66 | transport vesicles | 4 | 9.4K | 194 | 176 |
| 67 | Surface Chemistry | 312 | 8.8K | 173 | 243 |
| 68 | Medical Microbiology | 130 | 8.6K | 201 | 173 |
| 69 | Statistics | 216 | 8.4K | 146 | 131 |
| 70 | Metals | 85 | 8.1K | 349 | 133 |
| 71 | Pharmaceutical Chemistry | 196 | 8.1K | 339 | 307 |
| 72 | Colloids | 194 | 7.8K | 324 | 304 |
| 73 | Brain | 148 | 7.7K | 312 | 270 |
| 74 | Virology | 120 | 7.6K | 473 | 668 |
| 75 | Bioengineering | 148 | 7.5K | 421 | 516 |
| 76 | Behavior | 161 | 7.5K | 288 | 305 |
| 77 | Engineering Mathematics | 35 | 7.3K | 616 | 29 |
| 78 | Neuropsychology | 168 | 7.3K | 144 | 127 |
| 79 | United Kingdom | 148 | 7.3K | 76 | 76 |
| 80 | Transplantation | 133 | 7.2K | 109 | 106 |
| 81 | pain | 85 | 7.2K | 149 | 101 |
| 82 | Clinical Chemistry | 191 | 7.1K | 159 | 199 |
| 83 | Earth Sciences | 105 | 7.1K | 414 | 252 |
| 84 | Statistical physics | 156 | 7.0K | 558 | 353 |
| 85 | Astrophysics | 116 | 7.0K | 840 | 835 |
| 86 | Psychiatry | 135 | 6.8K | 649 | 617 |
| 87 | Reproduction | 124 | 6.8K | 240 | 136 |
| 88 | Molecular Microbiology | 57 | 6.5K | 114 | 70 |
| 89 | Biodiversity conservation | 59 | 6.4K | 290 | 239 |
| 90 | Automation | 120 | 6.4K | 100 | 87 |
| 91 | personality | 93 | 6.3K | 142 | 115 |
| 92 | Liver diseases | 85 | 6.3K | 205 | 225 |
| 93 | Biomedical Engineering | 129 | 6.1K | 591 | 403 |
| 94 | Immunity | 56 | 6.0K | 460 | 438 |
| 95 | Biocompatible Materials | 118 | 6.0K | 574 | 585 |
| 96 | Diagnostic Imaging | 108 | 5.8K | 159 | 103 |
| 97 | Geophysics | 137 | 5.8K | 643 | 571 |
| 98 | Quantum Gravity | 196 | 5.8K | 322 | 407 |
| 99 | environmental pollution | 115 | 5.8K | 559 | 490 |
| 100 | Economic History | 160 | 5.7K | 251 | 118 |
| 101 | Membranes | 80 | 5.7K | 220 | 146 |
| 102 | Technology | 105 | 5.7K | 540 | 265 |
| 103 | Developmental Biology | 75 | 5.5K | 390 | 354 |
| 104 | United States | 149 | 5.5K | 598 | 492 |
| 105 | Nuclear Medicine | 98 | 5.5K | 89 | 42 |
| 106 | Economic Development | 88 | 5.5K | 122 | 79 |
| 107 | nanoscience | 103 | 5.5K | 383 | 387 |
| 108 | Climate change | 43 | 5.4K | 188 | 216 |
| 108 | Eutrophication | 43 | 5.4K | 184 | 214 |
| 110 | Electronics | 217 | 5.3K | 284 | 216 |
| 111 | drug therapy | 113 | 5.3K | 269 | 200 |
| 112 | Critical Care | 91 | 5.3K | 189 | 255 |
| 113 | Critical Care Medicine | 88 | 5.2K | 205 | 252 |
| 114 | Radiation | 43 | 5.1K | 455 | 70 |
| 115 | Cognitive neuroscience | 57 | 5.1K | 141 | 123 |
| 116 | Operations Research | 114 | 5.0K | 169 | 136 |
| 117 | Cardiovascular system | 52 | 4.9K | 399 | 326 |
| 118 | Microbial Ecology | 76 | 4.9K | 351 | 357 |
| 119 | Parasitic Diseases | 74 | 4.8K | 232 | 146 |
| 120 | Molecular Imaging | 72 | 4.8K | 64 | 39 |
| 121 | Cell metabolism | 12 | 4.7K | 295 | 113 |
| 122 | Homeostasis | 11 | 4.7K | 234 | 113 |
| 123 | Nanostructures | 31 | 4.7K | 553 | 180 |
| 124 | Geomorphology | 82 | 4.6K | 88 | 60 |
| 125 | Cognitive Science | 54 | 4.6K | 173 | 117 |
| 126 | Neurobiology | 51 | 4.6K | 420 | 315 |
| 127 | Bacteriology | 79 | 4.6K | 288 | 301 |
| 128 | Plant diseases | 139 | 4.5K | 175 | 140 |
| 129 | Chemical Engineering | 135 | 4.5K | 689 | 789 |
| 130 | radiative transfer | 10 | 4.5K | 347 | 26 |
| 131 | Plant cells | 47 | 4.5K | 293 | 315 |
| 132 | Mycology | 107 | 4.5K | 118 | 100 |
| 133 | Developing countries | 87 | 4.4K | 199 | 115 |
| 134 | Embryology | 64 | 4.4K | 301 | 284 |
| 135 | soil microbiology | 86 | 4.4K | 145 | 197 |
| 136 | Plant physiology | 82 | 4.4K | 292 | 303 |
| 137 | Energy Policy | 50 | 4.4K | 445 | 274 |
| 138 | Astronomy | 81 | 4.4K | 874 | 827 |
| 139 | Planets | 73 | 4.3K | 387 | 327 |
| 140 | Hypertension | 60 | 4.3K | 352 | 329 |
| 141 | Pediatric Neurology | 25 | 4.2K | 377 | 201 |
| 142 | Oceanography | 100 | 4.2K | 274 | 267 |
| 143 | Emotions | 44 | 4.2K | 59 | 25 |
| 144 | Medical Physics | 139 | 4.1K | 153 | 156 |
| 145 | Pharmacy | 77 | 4.1K | 280 | 159 |
| 146 | Cerebral cortex | 85 | 4.1K | 65 | 97 |
| 147 | economic policy | 137 | 4.1K | 123 | 86 |
| 148 | Diet | 38 | 4.0K | 630 | 332 |
| 149 | Semiconductors | 129 | 4.0K | 109 | 51 |
| 150 | Hydrology | 89 | 4.0K | 335 | 263 |
| 151 | Oncology | 52 | 4.0K | 462 | 608 |
| 152 | energy resources | 33 | 4.0K | 267 | 142 |
| 153 | Pediatrics | 57 | 4.0K | 619 | 458 |
| 154 | Agricultural Chemistry | 70 | 3.9K | 369 | 218 |
| 155 | Aging | 115 | 3.9K | 363 | 358 |
| 156 | alcoholism | 79 | 3.8K | 211 | 148 |
| 157 | Perception | 84 | 3.7K | 297 | 216 |
| 158 | human behavior | 66 | 3.7K | 403 | 437 |
| 159 | infection | 48 | 3.7K | 316 | 169 |
| 160 | Obesity | 57 | 3.7K | 425 | 306 |
| 161 | Geriatrics | 108 | 3.6K | 417 | 387 |
| 162 | Nanostructured Materials | 98 | 3.6K | 512 | 512 |
| 163 | Mental Disorders | 58 | 3.6K | 691 | 603 |
| 164 | Infections | 43 | 3.6K | 203 | 131 |
| 165 | Combustion | 71 | 3.6K | 154 | 108 |
| 166 | Plants | 46 | 3.5K | 477 | 384 |
| 167 | Mathematical Physics | 154 | 3.5K | 291 | 348 |
| 168 | Geography | 68 | 3.4K | 377 | 231 |
| 169 | Genomics | 76 | 3.4K | 537 | 476 |
| 170 | Water | 63 | 3.4K | 439 | 459 |
| 171 | Medical Laboratory Science | 85 | 3.4K | 141 | 164 |
| 172 | Analytical Chemistry | 94 | 3.3K | 873 | 785 |
| 173 | drugs | 64 | 3.3K | 305 | 166 |
| 174 | management | 70 | 3.3K | 619 | 592 |
| 175 | Environmental monitoring | 55 | 3.3K | 774 | 586 |
| 176 | Clinical Biochemistry | 55 | 3.2K | 170 | 66 |
| 177 | Data Mining | 26 | 3.2K | 324 | 133 |
| 178 | Surgery | 31 | 3.1K | 795 | 624 |
| 179 | Fungi | 62 | 3.1K | 116 | 111 |
| 180 | Biodiversity | 55 | 3.0K | 376 | 324 |
| 181 | Neural circuitry | 68 | 3.0K | 164 | 139 |
| 182 | Plastics | 49 | 3.0K | 236 | 66 |
| 183 | Pathology | 82 | 2.9K | 421 | 519 |
| 184 | Entrepreneurship | 24 | 2.9K | 203 | 144 |
| 185 | Microorganisms | 29 | 2.9K | 277 | 193 |
| 186 | Process Control | 43 | 2.9K | 62 | 57 |
| 187 | Memory | 79 | 2.9K | 314 | 295 |
| 188 | Visual Perception | 82 | 2.8K | 250 | 216 |
| 189 | Numerical Analysis | 74 | 2.8K | 287 | 135 |
| 190 | Plant Ecology | 53 | 2.7K | 308 | 292 |
| 191 | Geology | 58 | 2.7K | 872 | 593 |
| 192 | Immunotherapy | 44 | 2.7K | 383 | 388 |
| 193 | Environmental Engineering | 58 | 2.7K | 751 | 706 |
| 194 | Sociology | 78 | 2.7K | 453 | 391 |
| 195 | drug addiction | 31 | 2.7K | 344 | 163 |
| 196 | Drug design | 44 | 2.7K | 215 | 131 |
| 197 | Cytogenetics | 32 | 2.7K | 461 | 378 |
| 198 | Medical Oncology | 61 | 2.7K | 521 | 371 |
| 199 | plasticity | 31 | 2.7K | 43 | 34 |
| 200 | Sustainable Development | 43 | 2.6K | 260 | 199 |
| 201 | Drug delivery systems | 29 | 2.6K | 336 | 175 |
| 202 | Allergy | 34 | 2.6K | 352 | 432 |
| 203 | Bioorganic chemistry | 72 | 2.6K | 488 | 475 |
| 204 | Clinical Pharmacology | 56 | 2.6K | 218 | 110 |
| 205 | data collection | 19 | 2.6K | 239 | 99 |
| 206 | Environmental Toxicology | 55 | 2.6K | 352 | 379 |
| 207 | Biochemical Engineering | 63 | 2.6K | 622 | 1036 |
| 208 | Virulence | 24 | 2.6K | 399 | 290 |
| 209 | Business Ethics | 21 | 2.6K | 228 | 97 |
| 210 | Diagnostic microbiology | 49 | 2.5K | 232 | 332 |
| 211 | Microelectronics | 82 | 2.5K | 239 | 391 |
| 212 | Child psychology | 47 | 2.5K | 345 | 334 |
| 213 | Electrochemistry | 137 | 2.5K | 595 | 725 |
| 214 | Game Theory | 66 | 2.5K | 17 | 26 |
| 215 | Neurochemistry | 63 | 2.5K | 537 | 562 |
| 216 | Hormones | 45 | 2.5K | 238 | 160 |
| 216 | insurance | 89 | 2.5K | 9 | 8 |
| 218 | Entomology | 85 | 2.5K | 343 | 247 |
| 219 | Cell differentiation | 54 | 2.5K | 387 | 562 |
| 220 | Health | 48 | 2.5K | 470 | 284 |
| 221 | Host-parasite interactions | 21 | 2.5K | 470 | 364 |
| 222 | Genetic engineering | 42 | 2.5K | 442 | 368 |
| 223 | System analysis | 94 | 2.5K | 185 | 206 |
| 224 | Food | 39 | 2.4K | 826 | 475 |
| 225 | finance | 58 | 2.4K | 403 | 263 |
| 226 | Leukemia | 48 | 2.4K | 299 | 288 |
| 227 | Hydraulic Engineering | 49 | 2.4K | 119 | 75 |
| 228 | Chemotherapy | 47 | 2.4K | 274 | 136 |
| 228 | Composite Materials | 49 | 2.4K | 640 | 563 |
| 230 | Social Sciences | 107 | 2.4K | 391 | 334 |
| 231 | miniaturization | 55 | 2.4K | 326 | 470 |
| 232 | atmospheric models | 25 | 2.4K | 233 | 159 |
| 233 | Control Theory | 69 | 2.4K | 220 | 152 |
| 234 | Agriculture | 41 | 2.3K | 509 | 297 |
| 235 | Engineering | 72 | 2.3K | 711 | 398 |
| 236 | Land use | 33 | 2.3K | 162 | 62 |
| 237 | plant molecular biology | 33 | 2.3K | 453 | 487 |
| 238 | Environmental Microbiology | 35 | 2.3K | 266 | 266 |
| 239 | Actuarial Science | 97 | 2.3K | 9 | 7 |
| 240 | Medical innovations | 17 | 2.3K | 369 | 261 |
| 241 | Oncogenes | 24 | 2.3K | 464 | 394 |
| 242 | Biogeochemistry | 41 | 2.3K | 260 | 272 |
| 243 | Organic Chemistry | 100 | 2.3K | 490 | 666 |
| 244 | Molecular Genetics | 49 | 2.2K | 438 | 455 |
| 245 | Animal Behavior | 56 | 2.2K | 401 | 446 |
| 246 | Child Development | 50 | 2.2K | 428 | 380 |
| 247 | Mental illness | 42 | 2.2K | 519 | 563 |
| 248 | free radicals | 49 | 2.2K | 249 | 298 |
| 249 | occupational diseases | 43 | 2.2K | 126 | 86 |
| 250 | Nonlinear Dynamics | 34 | 2.2K | 770 | 428 |
| 251 | gastrointestinal tract | 16 | 2.1K | 45 | 13 |
| 252 | Ethology | 52 | 2.1K | 316 | 382 |
| 253 | Parasitology | 55 | 2.1K | 497 | 337 |
| 254 | Biogeography | 29 | 2.1K | 233 | 218 |
| 255 | Radiobiology | 70 | 2.1K | 406 | 320 |
| 256 | behavior therapy | 18 | 2.1K | 342 | 131 |
| 257 | Regional Planning | 66 | 2.1K | 182 | 150 |
| 258 | Industrial Microbiology | 48 | 2.0K | 263 | 317 |
| 259 | environmental exposure | 48 | 2.0K | 256 | 204 |
| 260 | Immune system | 26 | 2.0K | 312 | 478 |
| 261 | Optical materials | 44 | 2.0K | 697 | 658 |
| 262 | Vision | 34 | 2.0K | 151 | 119 |
| 263 | Thin Films | 80 | 2.0K | 14 | 15 |
| 263 | arthritis | 40 | 2.0K | 345 | 394 |
| 265 | Biomass Energy | 33 | 2.0K | 686 | 547 |
| 266 | ecosystem | 34 | 2.0K | 291 | 287 |
| 267 | Child | 88 | 1.9K | 340 | 401 |
| 268 | sustainability | 22 | 1.9K | 125 | 124 |
| 269 | Computational Biology | 32 | 1.9K | 842 | 684 |
| 270 | Geochemistry | 37 | 1.9K | 690 | 597 |
| 271 | Functional Analysis | 49 | 1.9K | 192 | 76 |
| 271 | Environmental Geology | 42 | 1.9K | 168 | 130 |
| 273 | Signal Transduction | 30 | 1.9K | 333 | 310 |
| 274 | Molecular structure | 75 | 1.9K | 274 | 477 |
| 275 | Solid State Chemistry | 88 | 1.9K | 325 | 350 |
| 276 | computer networks | 67 | 1.9K | 255 | 237 |
| 277 | Pharmacogenetics | 33 | 1.9K | 209 | 167 |
| 278 | Respiration | 43 | 1.8K | 344 | 320 |
| 279 | Agricultural Ecology | 34 | 1.8K | 201 | 214 |
| 280 | Antioxidants | 26 | 1.8K | 108 | 142 |
| 281 | Attention | 62 | 1.8K | 337 | 365 |
| 282 | Nutrition physiology | 28 | 1.8K | 121 | 70 |
| 283 | Social behavior | 38 | 1.8K | 221 | 219 |
| 284 | Optics | 123 | 1.7K | 805 | 957 |
| 285 | Molecular Spectroscopy | 67 | 1.7K | 168 | 152 |
| 286 | Rheumatology | 27 | 1.7K | 388 | 323 |
| 287 | global environmental change | 41 | 1.7K | 89 | 164 |
| 288 | Bioinorganic chemistry | 51 | 1.7K | 199 | 148 |
| 289 | Clinical Psychology | 29 | 1.7K | 475 | 440 |
| 290 | Mass Spectrometry | 25 | 1.7K | 403 | 181 |
| 291 | biological evolution | 40 | 1.7K | 563 | 749 |
| 292 | Mathematical Economics | 44 | 1.7K | 20 | 50 |
| 293 | Pharmaceutical Technology | 25 | 1.7K | 448 | 228 |
| 294 | Anatomy | 41 | 1.7K | 523 | 535 |
| 295 | Food Microbiology | 38 | 1.7K | 230 | 254 |
| 296 | Recombinant DNA | 27 | 1.7K | 409 | 222 |
| 297 | Carbon | 40 | 1.7K | 224 | 321 |
| 298 | Lipids | 25 | 1.7K | 387 | 283 |
| 299 | Cosmology | 31 | 1.6K | 439 | 150 |
| 299 | Molecular cloning | 25 | 1.6K | 402 | 200 |
| 301 | Transportation | 27 | 1.6K | 509 | 308 |
| 302 | viruses | 32 | 1.6K | 518 | 578 |
| 303 | Substance Abuse | 34 | 1.6K | 406 | 236 |
| 304 | Growth | 26 | 1.6K | 435 | 485 |
| 305 | Agronomy | 15 | 1.6K | 178 | 109 |
| 305 | Genetic recombination | 24 | 1.6K | 398 | 201 |
| 307 | drug development | 13 | 1.6K | 473 | 334 |
| 308 | Occupational Health | 40 | 1.6K | 181 | 104 |
| 309 | water supply | 25 | 1.6K | 292 | 234 |
| 310 | Magnetic Materials | 18 | 1.6K | 611 | 220 |
| 311 | mathematical analysis | 106 | 1.6K | 281 | 284 |
| 312 | economic conditions | 22 | 1.6K | 135 | 60 |
| 312 | scientific societies | 35 | 1.6K | 133 | 97 |
| 314 | Economic Thought | 18 | 1.6K | 47 | 51 |
| 315 | Yeast | 54 | 1.6K | 12 | 33 |
| 316 | Genetic disorders | 34 | 1.6K | 103 | 67 |
| 317 | Radiation effects | 19 | 1.5K | 113 | 44 |
| 318 | Molecules | 106 | 1.5K | 130 | 265 |
| 319 | Antigens | 54 | 1.5K | 78 | 121 |
| 320 | Production Management | 20 | 1.5K | 357 | 326 |
| 321 | Thrombosis | 47 | 1.5K | 192 | 265 |
| 322 | Parasites | 39 | 1.5K | 310 | 220 |
| 323 | Health Education | 52 | 1.5K | 362 | 323 |
| 324 | Rheology | 56 | 1.5K | 55 | 75 |
| 325 | nucleic acids | 36 | 1.5K | 547 | 790 |
| 326 | Social Entrepreneurship | 5 | 1.5K | 45 | 2 |
| 327 | Oxidation-reduction | 20 | 1.5K | 217 | 239 |
| 328 | Antibodies | 48 | 1.4K | 44 | 85 |
| 329 | Plant hormones | 13 | 1.4K | 87 | 12 |
| 330 | Educational Psychology | 44 | 1.4K | 290 | 303 |
| 331 | Urology | 37 | 1.4K | 661 | 576 |
| 332 | Neurons | 10 | 1.4K | 444 | 581 |
| 333 | Biopharmaceutics | 22 | 1.4K | 314 | 167 |
| 334 | Physical Chemistry | 26 | 1.4K | 885 | 656 |
| 335 | Urban Economics | 24 | 1.4K | 58 | 62 |
| 335 | urban population | 24 | 1.4K | 28 | 40 |
| 337 | Differential Equations | 29 | 1.4K | 209 | 86 |
| 338 | Medical Technology | 30 | 1.4K | 387 | 214 |
| 339 | gene therapy | 23 | 1.4K | 341 | 297 |
| 340 | Ophthalmology | 29 | 1.4K | 643 | 489 |
| 340 | Fluid Mechanics | 47 | 1.4K | 377 | 322 |
| 342 | Clinical Immunology | 34 | 1.4K | 318 | 230 |
| 343 | Developmental Psychology | 46 | 1.4K | 189 | 282 |
| 344 | Hemophilia | 86 | 1.4K | 19 | 67 |
| 345 | Soft Condensed Matter | 40 | 1.4K | 228 | 223 |
| 346 | rehabilitation | 60 | 1.4K | 361 | 511 |
| 347 | disease vectors | 33 | 1.4K | 161 | 133 |
| 348 | Tropical Medicine | 38 | 1.4K | 369 | 240 |
| 349 | Nutritional support | 22 | 1.4K | 10 | 8 |
| 350 | world | 28 | 1.4K | 143 | 166 |
| 351 | Business | 39 | 1.3K | 490 | 621 |
| 351 | cryosphere | 28 | 1.3K | 103 | 112 |
| 353 | Education | 81 | 1.3K | 644 | 649 |
| 354 | Political Science | 59 | 1.3K | 345 | 305 |
| 355 | Environmental Management | 28 | 1.3K | 903 | 860 |
| 356 | Physical Therapy | 38 | 1.3K | 294 | 320 |
| 356 | Population | 69 | 1.3K | 84 | 125 |
| 358 | Enteral nutrition | 19 | 1.3K | 300 | 234 |
| 358 | Parenteral nutrition | 19 | 1.3K | 435 | 308 |
| 360 | environmental protection | 39 | 1.3K | 855 | 958 |
| 361 | Immunochemistry | 44 | 1.3K | 118 | 96 |
| 362 | Forest Management | 30 | 1.3K | 236 | 217 |
| 363 | Magnetic Resonance Spectroscopy | 36 | 1.3K | 296 | 221 |
| 364 | Sports Medicine | 54 | 1.3K | 575 | 612 |
| 364 | nuclear astrophysics | 6 | 1.3K | 384 | 76 |
| 366 | Forest Ecology | 30 | 1.3K | 246 | 252 |
| 367 | Therapeutics | 36 | 1.3K | 502 | 594 |
| 368 | Evolution | 37 | 1.3K | 529 | 715 |
| 369 | Green Chemistry | 26 | 1.3K | 568 | 576 |
| 370 | psychotherapy | 27 | 1.3K | 443 | 378 |
| 371 | Pharmacokinetics | 13 | 1.3K | 367 | 111 |
| 372 | gene mapping | 28 | 1.3K | 674 | 704 |
| 373 | Organ transplantation | 47 | 1.3K | 39 | 22 |
| 374 | Muscles | 31 | 1.3K | 179 | 201 |
| 375 | Demography | 69 | 1.3K | 48 | 117 |
| 376 | Nanoparticles | 23 | 1.3K | 632 | 459 |
| 376 | Meteorites | 18 | 1.3K | 479 | 433 |
| 378 | Development | 30 | 1.2K | 145 | 165 |
| 379 | Physical organic chemistry | 16 | 1.2K | 608 | 178 |
| 379 | Smoking | 22 | 1.2K | 277 | 179 |
| 379 | marketing | 47 | 1.2K | 367 | 517 |
| 382 | Economic Assistance | 28 | 1.2K | 126 | 141 |
| 383 | Psycholinguistics | 35 | 1.2K | 209 | 243 |
| 384 | Pharmacognosy | 25 | 1.2K | 589 | 480 |
| 385 | Water pollution | 40 | 1.2K | 710 | 922 |
| 385 | Insects | 22 | 1.2K | 524 | 258 |
| 387 | nuclear magnetic resonance | 28 | 1.2K | 353 | 229 |
| 387 | Breeding | 26 | 1.2K | 380 | 272 |
| 389 | proteins | 53 | 1.2K | 411 | 594 |
| 390 | Artificial Intelligence | 38 | 1.2K | 1114 | 945 |
| 391 | Small Business | 22 | 1.2K | 161 | 280 |
| 392 | biopolymers | 38 | 1.2K | 256 | 266 |
| 393 | Histology | 50 | 1.2K | 358 | 526 |
| 394 | Computational Chemistry | 1 | 1.2K | 1319 | 158 |
| 395 | rare diseases | 21 | 1.2K | 152 | 100 |
| 396 | Developmental Genetics | 7 | 1.2K | 459 | 310 |
| 397 | Learning | 18 | 1.2K | 550 | 369 |
| 398 | enzymes | 31 | 1.2K | 366 | 356 |
| 399 | counseling | 32 | 1.2K | 357 | 261 |
| 400 | plant communities | 26 | 1.2K | 316 | 385 |
| 401 | Obstetrics | 43 | 1.2K | 806 | 769 |
| 402 | Bioenergetics | 27 | 1.2K | 205 | 198 |
| 403 | Landscape Ecology | 11 | 1.2K | 185 | 85 |
| 404 | Organometallic chemistry | 54 | 1.2K | 238 | 205 |
| 405 | Neurosurgery | 31 | 1.2K | 307 | 298 |
| 406 | mycoses | 23 | 1.2K | 188 | 323 |
| 407 | Orthopedics | 20 | 1.2K | 716 | 470 |
| 408 | cell physiology | 12 | 1.1K | 922 | 649 |
| 409 | Soil biology | 29 | 1.1K | 262 | 372 |
| 410 | mutation | 16 | 1.1K | 196 | 132 |
| 411 | Chromosome mapping | 24 | 1.1K | 662 | 634 |
| 412 | Patient education | 24 | 1.1K | 164 | 135 |
| 413 | Malaria | 31 | 1.1K | 166 | 151 |
| 414 | ethanol | 45 | 1.1K | 48 | 60 |
| 415 | behavioral medicine | 17 | 1.1K | 509 | 411 |
| 416 | Wildlife conservation | 22 | 1.1K | 410 | 418 |
| 417 | food technology | 25 | 1.1K | 884 | 725 |
| 418 | Stem cells | 36 | 1.1K | 438 | 581 |
| 418 | Solar System | 24 | 1.1K | 347 | 311 |
| 420 | Dermatology | 30 | 1.1K | 681 | 561 |
| 421 | Surface-Active Agents | 26 | 1.1K | 185 | 187 |
| 421 | Surface properties | 26 | 1.1K | 208 | 210 |
| 423 | preimplantation genetic diagnosis | 32 | 1.1K | 43 | 24 |
| 423 | embryo transfer | 32 | 1.1K | 50 | 28 |
| 425 | Energy metabolism | 22 | 1.1K | 209 | 183 |
| 426 | Sustainable agriculture | 19 | 1.1K | 186 | 104 |
| 427 | Industrial Policy | 43 | 1.1K | 10 | 53 |
| 428 | Sustainable Engineering | 20 | 1.0K | 568 | 460 |
| 428 | Health Services Research | 42 | 1.0K | 352 | 404 |
| 428 | Genetic regulation | 17 | 1.0K | 488 | 511 |
| 431 | brewing | 45 | 1.0K | 30 | 21 |
| 432 | Digestive system diseases | 18 | 1.0K | 412 | 207 |
| 433 | locomotion | 27 | 1.0K | 129 | 117 |
| 433 | posture | 27 | 1.0K | 129 | 117 |
| 433 | gait | 27 | 1.0K | 129 | 117 |
| 433 | walking | 27 | 1.0K | 129 | 117 |
| 437 | Medicinal plants | 18 | 1.0K | 513 | 372 |
| 438 | cytokines | 22 | 1.0K | 386 | 318 |
| 439 | Genetic therapy | 23 | 1.0K | 430 | 431 |
| 440 | Paleoclimatology | 14 | 1.0K | 553 | 343 |
| 441 | probabilities | 68 | 1.0K | 178 | 174 |
| 442 | Zoology | 33 | 1.0K | 890 | 659 |
| 443 | intergroup relations | 16 | 1.0K | 25 | 19 |
| 444 | Primary health care | 42 | 1.0K | 360 | 375 |
| 445 | Chromosomes | 15 | 1.0K | 422 | 263 |
| 446 | coal | 17 | 1.0K | 640 | 501 |
| 447 | calcification | 21 | 1.0K | 134 | 122 |
| 448 | Molecular Pharmacology | 7 | 999 | 573 | 213 |
| 449 | Environmental pollutants | 26 | 998 | 697 | 649 |
| 450 | Kidney diseases | 28 | 992 | 240 | 240 |
| 451 | Crystal growth | 39 | 986 | 120 | 176 |
| 452 | Welfare Economics | 29 | 983 | 44 | 72 |
| 452 | International Finance | 32 | 983 | 358 | 344 |
| 454 | Immunopathology | 23 | 980 | 540 | 472 |
| 455 | human development | 25 | 959 | 182 | 206 |
| 456 | Health Policy | 38 | 957 | 597 | 683 |
| 456 | Ocean Engineering | 26 | 957 | 539 | 446 |
| 458 | Fracture mechanics | 36 | 956 | 340 | 329 |
| 459 | Bacterial infections | 10 | 946 | 481 | 400 |
| 460 | clay | 27 | 943 | 111 | 160 |
| 461 | Electrophoresis | 16 | 942 | 739 | 381 |
| 461 | older people | 31 | 942 | 469 | 264 |
| 463 | pollutants | 23 | 936 | 617 | 590 |
| 464 | sanitation | 16 | 928 | 742 | 850 |
| 465 | Environmental Law | 18 | 927 | 372 | 492 |
| 465 | Social policy | 21 | 927 | 279 | 129 |
| 467 | Marine Biology | 34 | 924 | 905 | 985 |
| 467 | Remote Sensing | 30 | 924 | 310 | 160 |
| 469 | Medical Anthropology | 18 | 911 | 479 | 487 |
| 470 | Psychopharmacology | 28 | 908 | 617 | 774 |
| 471 | Chronic diseases | 6 | 889 | 621 | 374 |
| 472 | actuators | 32 | 881 | 597 | 767 |
| 472 | transducers | 32 | 881 | 597 | 767 |
| 474 | Molecular ecology | 14 | 878 | 579 | 575 |
| 475 | Image Processing | 29 | 877 | 525 | 607 |
| 476 | Human Resources | 10 | 861 | 166 | 91 |
| 477 | Serology | 22 | 860 | 74 | 60 |
| 478 | biological factors | 31 | 859 | 453 | 530 |
| 479 | energy conservation | 18 | 855 | 659 | 706 |
| 480 | Developmental Disabilities | 28 | 854 | 268 | 372 |
| 481 | Sun | 12 | 851 | 247 | 162 |
| 482 | Nephrology | 16 | 849 | 242 | 219 |
| 483 | Signal Processing | 51 | 843 | 307 | 434 |
| 483 | Gene expression regulation | 12 | 843 | 521 | 415 |
| 485 | Biomass | 12 | 840 | 214 | 167 |
| 486 | Reproductive health | 24 | 836 | 183 | 160 |
| 487 | Computer Science | 64 | 835 | 201 | 276 |
| 488 | Algorithms | 32 | 830 | 60 | 69 |
| 489 | Fluid Dynamics | 19 | 828 | 437 | 262 |
| 490 | Youth | 8 | 824 | 408 | 179 |
| 491 | Schizophrenia | 6 | 821 | 970 | 484 |
| 491 | Biomechanics | 21 | 821 | 495 | 451 |
| 491 | Elderly | 25 | 821 | 435 | 126 |
| 494 | Human-Computer Interaction | 15 | 817 | 559 | 285 |
| 495 | Language Disorders | 22 | 800 | 275 | 208 |
| 495 | Teaching | 25 | 800 | 498 | 374 |
| 497 | Natural resources | 19 | 799 | 218 | 213 |
| 497 | Proteome | 18 | 799 | 462 | 509 |
| 499 | Vaccines | 21 | 798 | 781 | 693 |
| 500 | Analytical Biochemistry | 24 | 795 | 505 | 539 |
| 501 | Multiphase Flow | 13 | 791 | 123 | 82 |
| 502 | Animal ecology | 22 | 789 | 437 | 417 |
| 503 | Agricultural Science | 4 | 788 | 194 | 111 |
| 503 | Speech Disorders | 25 | 788 | 331 | 307 |
| 503 | Organometallic compounds | 18 | 788 | 494 | 334 |
| 506 | Sports | 23 | 780 | 830 | 651 |
| 507 | Multivariate Analysis | 24 | 775 | 86 | 96 |
| 508 | Emergency Medicine | 27 | 773 | 549 | 423 |
| 509 | Electromagnetism | 6 | 772 | 572 | 104 |
| 510 | Manufacturing Processes | 22 | 771 | 893 | 731 |
| 511 | Population Genetics | 14 | 770 | 643 | 592 |
| 511 | Australia | 20 | 770 | 697 | 375 |
| 513 | Biosensors | 10 | 768 | 722 | 592 |
| 514 | Cell death | 12 | 766 | 721 | 694 |
| 515 | Nonlinear functional analysis | 46 | 765 | 127 | 196 |
| 515 | Japan | 14 | 765 | 1072 | 362 |
| 517 | Conservation Biology | 10 | 763 | 673 | 459 |
| 518 | Telecommunication | 41 | 762 | 451 | 451 |
| 519 | Adolescent | 18 | 761 | 968 | 669 |
| 520 | Geriatric Pharmacology | 16 | 757 | 56 | 33 |
| 521 | Agricultural systems | 12 | 754 | 138 | 101 |
| 522 | Bioelectronics | 9 | 753 | 633 | 534 |
| 523 | Organizational Behavior | 9 | 749 | 330 | 230 |
| 524 | pain management | 39 | 748 | 70 | 132 |
| 525 | Family Therapy | 20 | 746 | 229 | 139 |
| 526 | Inflammation | 17 | 745 | 468 | 440 |
| 527 | Antibacterial agents | 24 | 739 | 120 | 172 |
| 528 | France | 40 | 728 | 32 | 12 |
| 529 | Linguistics | 56 | 727 | 242 | 309 |
| 530 | International Relations | 41 | 725 | 229 | 223 |
| 530 | Neuromuscular diseases | 18 | 725 | 247 | 228 |
| 532 | adolescence | 9 | 720 | 557 | 326 |
| 533 | Public Policy | 37 | 719 | 380 | 552 |
| 534 | Industrial Organization | 14 | 718 | 58 | 35 |
| 535 | Community Psychiatry | 20 | 716 | 333 | 331 |
| 536 | Genetic Toxicology | 9 | 713 | 211 | 139 |
| 537 | Public Finance | 39 | 706 | 1 | 1 |
| 538 | Bones | 26 | 703 | 279 | 413 |
| 539 | consumer behavior | 8 | 702 | 270 | 161 |
| 540 | Gerontology | 36 | 701 | 540 | 604 |
| 541 | Cryptography | 15 | 696 | 201 | 54 |
| 542 | Biometrics | 30 | 688 | 309 | 372 |
| 543 | Globalization | 11 | 685 | 189 | 79 |
| 544 | Aquaculture | 17 | 684 | 650 | 496 |
| 545 | Hemostasis | 36 | 675 | 125 | 194 |
| 546 | biochemical markers | 22 | 674 | 138 | 98 |
| 547 | Plant genetic engineering | 16 | 673 | 363 | 400 |
| 548 | cell interaction | 16 | 668 | 475 | 434 |
| 549 | Respiratory system | 14 | 667 | 231 | 177 |
| 549 | Zeolites | 23 | 667 | 218 | 288 |
| 551 | Environmental Chemistry | 19 | 666 | 795 | 1108 |
| 552 | Electrical Engineering | 84 | 665 | 626 | 697 |
| 553 | Cardiovascular diseases | 18 | 661 | 765 | 636 |
| 554 | Mechanics | 15 | 660 | 564 | 279 |
| 555 | Neurotoxicology | 8 | 657 | 311 | 136 |
| 556 | Magnetic Resonance Imaging | 16 | 653 | 194 | 130 |
| 557 | clay minerals | 19 | 650 | 53 | 63 |
| 558 | medical education | 31 | 649 | 566 | 585 |
| 559 | Chromatographic analysis | 18 | 646 | 782 | 510 |
| 560 | Fisheries | 10 | 641 | 1110 | 640 |
| 561 | Social problems | 12 | 640 | 235 | 185 |
| 562 | city planning | 27 | 636 | 452 | 466 |
| 563 | industrial hygiene | 24 | 633 | 287 | 159 |
| 564 | Chemical processes | 16 | 629 | 186 | 103 |
| 565 | Computer Vision | 9 | 626 | 704 | 538 |
| 565 | child mental health | 12 | 626 | 174 | 74 |
| 567 | foreign exchange | 11 | 622 | 106 | 89 |
| 568 | Radiology | 41 | 620 | 361 | 469 |
| 569 | Chromatography | 14 | 616 | 789 | 470 |
| 570 | Database Management | 5 | 615 | 713 | 284 |
| 570 | Computational Mathematics | 5 | 615 | 67 | 16 |
| 570 | Hemodynamics | 19 | 615 | 244 | 364 |
| 573 | Metallography | 10 | 610 | 412 | 178 |
| 574 | Communication Policy | 7 | 608 | 17 | 7 |
| 574 | Telecommunication Policy | 7 | 608 | 17 | 7 |
| 576 | commerce | 23 | 607 | 417 | 554 |
| 577 | Microscopy | 19 | 606 | 585 | 438 |
| 578 | Africa | 45 | 605 | 248 | 270 |
| 579 | Sleep Disorders | 32 | 601 | 571 | 738 |
| 579 | Venture Capital | 2 | 601 | 394 | 234 |
| 579 | Sleep | 32 | 601 | 569 | 739 |
| 582 | Information Science | 24 | 600 | 789 | 940 |
| 583 | soil management | 23 | 598 | 112 | 188 |
| 583 | viral genetics | 3 | 598 | 427 | 362 |
| 585 | Quality of life | 21 | 595 | 447 | 614 |
| 586 | Calculus of Variations | 19 | 588 | 131 | 65 |
| 587 | Energy Conversion | 12 | 586 | 657 | 839 |
| 587 | Anxiety Disorders | 8 | 586 | 338 | 321 |
| 587 | Anxiety | 8 | 586 | 336 | 321 |
| 587 | cell membrane | 15 | 586 | 286 | 272 |
| 587 | Personality Assessment | 9 | 586 | 310 | 238 |
| 587 | Catalysts | 23 | 586 | 129 | 154 |
| 593 | Speech | 12 | 585 | 435 | 336 |
| 594 | Volcanoes | 12 | 577 | 115 | 93 |
| 594 | Peasants | 1 | 577 | 222 | 15 |
| 596 | Adolescent Psychology | 13 | 572 | 378 | 349 |
| 597 | Neuropsychiatry | 14 | 570 | 419 | 373 |
| 598 | international trade | 20 | 569 | 131 | 169 |
| 599 | Nonprofit organizations | 10 | 568 | 114 | 50 |
| 600 | mutagens | 10 | 567 | 490 | 459 |
| 601 | Systems Biology | 21 | 566 | 518 | 571 |
| 602 | Information Theory | 13 | 564 | 557 | 359 |
| 603 | Research Design | 22 | 563 | 368 | 496 |
| 604 | Information Systems | 30 | 560 | 252 | 419 |
| 605 | Hydrodynamics | 9 | 558 | 330 | 210 |
| 605 | Fixed Point Theory | 9 | 558 | 115 | 15 |
| 605 | Harmonic Analysis | 7 | 558 | 64 | 39 |
| 608 | Software Engineering | 17 | 557 | 363 | 206 |
| 609 | Physical Geography | 4 | 555 | 549 | 109 |
| 610 | Orthopedic Surgery | 4 | 553 | 961 | 322 |
| 611 | Sarcopenia | 13 | 552 | 90 | 175 |
| 612 | Photochemistry | 23 | 551 | 532 | 678 |
| 612 | taxation | 19 | 551 | 15 | 27 |
| 614 | embryonic development | 16 | 550 | 117 | 118 |
| 615 | Religion | 22 | 547 | 319 | 56 |
| 616 | Food additives | 16 | 546 | 464 | 503 |
| 616 | feeding behavior | 7 | 546 | 551 | 293 |
| 616 | Appetite | 7 | 546 | 472 | 254 |
| 619 | organization | 8 | 540 | 470 | 423 |
| 620 | Strategic planning | 15 | 534 | 214 | 225 |
| 620 | Communication | 18 | 534 | 821 | 673 |
| 622 | industrial relations | 35 | 531 | 158 | 207 |
| 623 | Carcinogenesis | 11 | 530 | 546 | 526 |
| 623 | mass transfer | 12 | 530 | 895 | 718 |
| 625 | Psychoneuroimmunology | 6 | 529 | 541 | 344 |
| 625 | Neuroimmunology | 6 | 529 | 600 | 381 |
| 627 | Psychiatric Epidemiology | 14 | 528 | 171 | 215 |
| 628 | Labor Economics | 23 | 526 | 71 | 128 |
| 629 | Lipid metabolism | 11 | 525 | 140 | 162 |
| 629 | Lipid | 11 | 525 | 141 | 164 |
| 631 | China | 11 | 521 | 1768 | 985 |
| 632 | analysis | 6 | 520 | 266 | 140 |
| 633 | Plant breeding | 22 | 514 | 235 | 270 |
| 634 | Memory disorders | 8 | 510 | 104 | 56 |
| 634 | Bacterial diseases | 2 | 510 | 394 | 41 |
| 636 | Corporate governance | 9 | 509 | 220 | 120 |
| 636 | carcinogens | 10 | 509 | 589 | 520 |
| 638 | European integration | 14 | 506 | 73 | 62 |
| 638 | European Economic Community | 13 | 506 | 75 | 62 |
| 640 | Molecular evolution | 14 | 505 | 864 | 935 |
| 641 | Photobiology | 20 | 503 | 361 | 451 |
| 642 | Global Health | 22 | 502 | 271 | 242 |
| 643 | Computer Graphics | 20 | 497 | 625 | 649 |
| 644 | Iron | 7 | 494 | 293 | 113 |
| 645 | vitamin C | 13 | 493 | 91 | 131 |
| 645 | vitamin E | 13 | 493 | 91 | 131 |
| 647 | Quality Control | 15 | 488 | 695 | 635 |
| 647 | protein | 19 | 488 | 497 | 639 |
| 649 | Industrial Engineering | 23 | 486 | 604 | 750 |
| 649 | Steroids | 39 | 486 | 173 | 445 |
| 651 | Geriatric Oncology | 16 | 483 | 197 | 237 |
| 652 | Water quality management | 25 | 482 | 502 | 599 |
| 653 | Immunogenetics | 14 | 481 | 324 | 297 |
| 654 | Humanities | 21 | 479 | 484 | 217 |
| 654 | Algebra | 80 | 479 | 166 | 266 |
| 654 | Microeconomics | 9 | 479 | 146 | 121 |
| 657 | Social Choice Theory | 26 | 478 | 11 | 22 |
| 658 | Combinatorial analysis | 8 | 477 | 772 | 206 |
| 659 | Law | 26 | 475 | 472 | 202 |
| 659 | Hearing | 8 | 475 | 467 | 251 |
| 661 | brain mapping | 12 | 469 | 349 | 447 |
| 662 | Mites | 22 | 468 | 95 | 72 |
| 663 | Forecasting | 17 | 464 | 119 | 165 |
| 663 | Cytokine | 9 | 464 | 171 | 195 |
| 665 | Radiography | 5 | 460 | 635 | 346 |
| 665 | Adaptive control systems | 8 | 460 | 298 | 90 |
| 667 | epidemiologic methods | 4 | 457 | 140 | 15 |
| 668 | income distribution | 23 | 456 | 5 | 55 |
| 669 | Birth control | 4 | 455 | 431 | 168 |
| 670 | Animal breeding | 11 | 449 | 438 | 298 |
| 671 | vascular diseases | 5 | 448 | 713 | 483 |
| 672 | Mental Health | 27 | 447 | 476 | 621 |
| 672 | drug evaluation | 14 | 447 | 557 | 464 |
| 674 | economic forecasting | 11 | 446 | 100 | 131 |
| 675 | drug resistance | 8 | 445 | 376 | 244 |
| 676 | Stochastic Processes | 21 | 444 | 222 | 180 |
| 677 | voice | 21 | 442 | 100 | 114 |
| 678 | Genetic markers | 16 | 440 | 22 | 18 |
| 678 | child abuse | 3 | 440 | 1002 | 438 |
| 680 | Risk | 9 | 436 | 318 | 257 |
| 680 | Economic planning | 20 | 436 | 68 | 114 |
| 682 | Adolescent Medicine | 5 | 434 | 564 | 574 |
| 682 | environmental issues | 10 | 434 | 159 | 128 |
| 684 | cloning | 11 | 433 | 346 | 575 |
| 685 | Asia | 17 | 431 | 1166 | 773 |
| 686 | Continental shelf | 12 | 430 | 168 | 178 |
| 687 | Drug delivery devices | 3 | 429 | 170 | 46 |
| 688 | Demographic research | 10 | 425 | 54 | 86 |
| 689 | Radio wave propagation | 20 | 424 | 220 | 165 |
| 690 | genome | 12 | 421 | 914 | 1399 |
| 691 | Bone diseases | 3 | 416 | 594 | 351 |
| 692 | language | 15 | 415 | 291 | 338 |
| 693 | Anthropology | 19 | 414 | 704 | 584 |
| 694 | Paleoceanography | 8 | 413 | 119 | 164 |
| 695 | Investments | 3 | 412 | 678 | 88 |
| 696 | Heat Exchangers | 5 | 411 | 1021 | 627 |
| 696 | Social Change | 8 | 411 | 559 | 571 |
| 696 | Radioisotopes | 28 | 411 | 283 | 322 |
| 699 | Ticks | 18 | 407 | 72 | 68 |
| 700 | immigration | 10 | 406 | 50 | 69 |
| 700 | migration policy | 10 | 406 | 59 | 69 |
| 700 | Asylum seeker | 10 | 406 | 42 | 68 |
| 703 | Structuralism | 3 | 402 | 157 | 93 |
| 703 | Social Networks | 3 | 402 | 326 | 101 |
| 705 | Dynamics | 30 | 399 | 429 | 513 |
| 706 | Music | 17 | 398 | 300 | 199 |
| 706 | Second Language Acquisition | 5 | 398 | 137 | 95 |
| 708 | Computational Fluid Dynamics | 12 | 397 | 266 | 199 |
| 709 | Renewable Energy Sources | 10 | 394 | 1649 | 2145 |
| 710 | Growth factors | 5 | 393 | 187 | 206 |
| 711 | Securities | 6 | 392 | 148 | 88 |
| 711 | Acarology | 15 | 392 | 64 | 69 |
| 711 | Acari | 15 | 392 | 64 | 68 |
| 714 | blood transfusion | 12 | 391 | 439 | 338 |
| 715 | Electron Microscopy | 12 | 389 | 147 | 80 |
| 715 | Autoimmune diseases | 11 | 389 | 303 | 362 |
| 717 | liver | 12 | 387 | 101 | 72 |
| 718 | Evolutionary Genetics | 7 | 383 | 387 | 218 |
| 718 | Molecular Epidemiology | 7 | 383 | 387 | 218 |
| 720 | Nonlinear systems | 8 | 377 | 324 | 169 |
| 721 | Animal Nutrition | 13 | 373 | 262 | 226 |
| 721 | Biodegradation | 8 | 373 | 361 | 302 |
| 721 | Positive Psychology | 2 | 373 | 219 | 84 |
| 724 | natural products | 14 | 372 | 859 | 744 |
| 725 | Logistics | 5 | 369 | 390 | 237 |
| 726 | Public Administration | 36 | 368 | 317 | 512 |
| 726 | Fermentation | 19 | 368 | 78 | 74 |
| 726 | Human evolution | 5 | 368 | 371 | 285 |
| 729 | Water Microbiology | 7 | 366 | 218 | 141 |
| 729 | Fouling | 7 | 366 | 106 | 90 |
| 731 | concrete | 5 | 365 | 892 | 664 |
| 731 | Cement | 5 | 365 | 513 | 446 |
| 733 | histological techniques | 12 | 363 | 328 | 507 |
| 733 | Cosmochemistry | 12 | 363 | 455 | 548 |
| 735 | Ceramic materials | 12 | 360 | 671 | 565 |
| 736 | Elections | 19 | 359 | 81 | 98 |
| 737 | Engineering Geology | 17 | 358 | 590 | 768 |
| 738 | Europa | 19 | 357 | 121 | 184 |
| 739 | fuel cells | 9 | 356 | 826 | 927 |
| 740 | Enzyme | 12 | 354 | 162 | 255 |
| 740 | health planning | 30 | 354 | 544 | 903 |
| 742 | cosmic rays | 15 | 353 | 188 | 162 |
| 743 | Bioinformatics | 17 | 352 | 970 | 1445 |
| 744 | Autoimmunity | 13 | 349 | 362 | 589 |
| 745 | innovation | 10 | 348 | 264 | 474 |
| 746 | Artificial Organs | 4 | 343 | 759 | 254 |
| 747 | Language Acquisition | 8 | 341 | 233 | 167 |
| 748 | Hematopoietic stem cell transplantation | 4 | 340 | 460 | 250 |
| 748 | software | 12 | 340 | 344 | 485 |
| 750 | Proteomics | 10 | 337 | 659 | 812 |
| 751 | Plant Genetics | 9 | 333 | 426 | 566 |
| 751 | Adhesion | 8 | 333 | 326 | 165 |
| 751 | Liposomes | 13 | 333 | 170 | 264 |
| 751 | Lipid bilayers | 13 | 333 | 141 | 246 |
| 751 | adhesives | 8 | 333 | 356 | 167 |
| 756 | Ecological Engineering | 9 | 332 | 293 | 348 |
| 757 | Transgenic plants | 9 | 326 | 231 | 264 |
| 758 | Experimental Psychology | 12 | 325 | 274 | 315 |
| 759 | Photonics | 10 | 322 | 1114 | 1289 |
| 760 | Mineralogy | 11 | 321 | 844 | 778 |
| 761 | environmental indicators | 7 | 320 | 780 | 735 |
| 761 | cooperation | 27 | 320 | 5 | 7 |
| 763 | Wireless Communication Systems | 28 | 316 | 571 | 824 |
| 763 | Building | 6 | 316 | 483 | 181 |
| 765 | Decision making | 11 | 312 | 783 | 768 |
| 766 | Solar Energy | 11 | 307 | 909 | 1144 |
| 767 | Comparative Physiology | 18 | 306 | 326 | 472 |
| 767 | Extreme Value Theory | 16 | 306 | 10 | 11 |
| 769 | Freeze-Drying | 23 | 304 | 81 | 137 |
| 769 | Hypothermia | 23 | 304 | 81 | 137 |
| 769 | Freeze Drying | 23 | 304 | 81 | 137 |
| 772 | Immunopharmacology | 9 | 303 | 605 | 544 |
| 773 | Development Economics | 5 | 300 | 343 | 212 |
| 774 | Chemical industry | 16 | 299 | 545 | 498 |
| 775 | Plasma chemistry | 13 | 296 | 129 | 152 |
| 775 | Animal genetics | 12 | 296 | 289 | 313 |
| 775 | population trends | 3 | 296 | 82 | 93 |
| 778 | amino acids | 9 | 295 | 248 | 297 |
| 779 | Topology | 38 | 293 | 27 | 79 |
| 779 | Disease | 4 | 293 | 305 | 828 |
| 781 | food contamination | 9 | 291 | 551 | 390 |
| 781 | air | 5 | 291 | 149 | 151 |
| 781 | Climate | 5 | 291 | 493 | 365 |
| 784 | North America | 13 | 290 | 394 | 351 |
| 784 | Export Marketing | 1 | 290 | 479 | 129 |
| 786 | Plant Biotechnology | 5 | 288 | 692 | 487 |
| 787 | Regional Development | 17 | 287 | 41 | 128 |
| 787 | Development planning | 17 | 287 | 23 | 112 |
| 789 | Auditing | 5 | 285 | 293 | 189 |
| 790 | Government policy | 3 | 283 | 184 | 93 |
| 791 | Crystallography | 29 | 280 | 537 | 600 |
| 792 | Zoonoses | 5 | 277 | 232 | 148 |
| 793 | Coral reef biology | 3 | 276 | 170 | 113 |
| 793 | Insect biochemistry | 3 | 276 | 532 | 299 |
| 795 | Endocrine glands | 7 | 275 | 137 | 353 |
| 796 | bees | 5 | 274 | 311 | 197 |
| 797 | Molecular recognition | 4 | 273 | 162 | 65 |
| 797 | race relations | 11 | 273 | 256 | 231 |
| 799 | Medical Imaging | 4 | 272 | 385 | 205 |
| 800 | Women's health | 7 | 269 | 989 | 742 |
| 801 | Philosophy | 68 | 268 | 312 | 455 |
| 802 | Ethnic relations | 10 | 267 | 249 | 158 |
| 802 | tomography | 10 | 267 | 182 | 160 |
| 804 | Intelligence | 3 | 266 | 256 | 174 |
| 805 | Wireless Communication | 20 | 265 | 46 | 89 |
| 805 | diseases | 2 | 265 | 563 | 875 |
| 807 | transgenic organisms | 8 | 263 | 89 | 139 |
| 807 | cardiac catheterization | 9 | 263 | 606 | 474 |
| 809 | families | 13 | 262 | 366 | 366 |
| 810 | Social History | 10 | 261 | 255 | 109 |
| 810 | Radio | 12 | 261 | 380 | 320 |
| 812 | Geographic information systems | 18 | 260 | 284 | 399 |
| 813 | Robotics | 9 | 259 | 1097 | 962 |
| 813 | cell adhesion molecules | 5 | 259 | 422 | 316 |
| 813 | Cell communication | 5 | 259 | 712 | 575 |
| 816 | individual differences | 5 | 257 | 190 | 171 |
| 816 | Gastrointestinal diseases | 8 | 257 | 446 | 312 |
| 818 | Nuclear Engineering | 27 | 256 | 437 | 492 |
| 818 | Post-traumatic stress disorder | 7 | 256 | 526 | 544 |
| 820 | food handling | 7 | 255 | 554 | 622 |
| 821 | health services accessibility | 11 | 254 | 466 | 522 |
| 821 | Sexual health | 8 | 254 | 539 | 413 |
| 823 | Bilingualism | 2 | 253 | 276 | 112 |
| 824 | Architecture | 13 | 250 | 252 | 151 |
| 824 | Atmospheric Physics | 14 | 250 | 923 | 1318 |
| 826 | Neuroplasticity | 4 | 249 | 325 | 141 |
| 826 | neuronal plasticity | 4 | 249 | 257 | 119 |
| 826 | Social interaction | 4 | 249 | 287 | 170 |
| 829 | Nuclear Energy | 20 | 248 | 432 | 507 |
| 829 | Waste management | 18 | 248 | 444 | 672 |
| 831 | Marine Meteorology | 3 | 247 | 435 | 292 |
| 831 | Quantum Chemistry | 12 | 247 | 419 | 357 |
| 831 | solar cells | 4 | 247 | 906 | 722 |
| 834 | Raman spectroscopy | 5 | 246 | 708 | 426 |
| 834 | Middle East | 7 | 246 | 655 | 278 |
| 836 | Bacteria | 5 | 245 | 308 | 388 |
| 837 | Cardiovascular Pharmacology | 3 | 244 | 347 | 120 |
| 837 | Nanoelectronics | 26 | 244 | 182 | 291 |
| 839 | soil conservation | 10 | 243 | 340 | 469 |
| 840 | Plasma polymerization | 11 | 242 | 94 | 136 |
| 841 | Mental Health Services | 8 | 241 | 919 | 771 |
| 841 | Population Dynamics | 4 | 241 | 152 | 86 |
| 843 | Information Technology | 21 | 240 | 842 | 1269 |
| 843 | Ethnic Conflict | 8 | 240 | 113 | 116 |
| 843 | forced migration | 8 | 240 | 113 | 116 |
| 846 | Semiconductor industry | 25 | 238 | 137 | 237 |
| 846 | Recycling | 6 | 238 | 376 | 664 |
| 848 | Building Materials | 7 | 237 | 1253 | 1441 |
| 849 | Oxidative stress | 12 | 235 | 538 | 1091 |
| 849 | Synaptic Transmission | 2 | 235 | 782 | 357 |
| 849 | Soil | 9 | 235 | 28 | 63 |
| 852 | Infrared spectroscopy | 4 | 233 | 266 | 108 |
| 853 | Extracellular matrix | 2 | 232 | 433 | 286 |
| 853 | collagen | 2 | 232 | 451 | 297 |
| 855 | warfare | 9 | 231 | 142 | 217 |
| 855 | Reading | 8 | 231 | 346 | 301 |
| 857 | Organic Geochemistry | 5 | 230 | 315 | 338 |
| 858 | Glaciology | 5 | 227 | 182 | 128 |
| 858 | glaciers | 5 | 227 | 169 | 127 |
| 860 | Vocational Education | 11 | 226 | 246 | 229 |
| 860 | Long-Term Care | 10 | 226 | 290 | 485 |
| 860 | Long-term care facilities | 10 | 226 | 287 | 484 |
| 860 | Alzheimer's disease | 97 | 226 | 210 | 946 |
| 864 | Archaeology | 24 | 224 | 494 | 769 |
| 864 | Ethnology | 23 | 224 | 448 | 674 |
| 866 | glycoproteins | 4 | 220 | 472 | 399 |
| 866 | Glycoconjugates | 4 | 220 | 472 | 399 |
| 866 | Writing | 7 | 220 | 140 | 139 |
| 866 | glycolipids | 4 | 220 | 472 | 399 |
| 870 | disaster relief | 10 | 218 | 54 | 91 |
| 871 | Germany | 13 | 217 | 257 | 128 |
| 872 | transgenic animals | 7 | 216 | 100 | 163 |
| 872 | Labor Movement | 15 | 216 | 26 | 17 |
| 874 | Radiation Protection | 19 | 215 | 189 | 195 |
| 874 | tillage | 12 | 215 | 149 | 388 |
| 876 | Foodborne diseases | 4 | 214 | 259 | 142 |
| 877 | econometric models | 20 | 213 | 79 | 335 |
| 878 | Cognitive Therapy | 9 | 211 | 346 | 419 |
| 878 | Capital market | 2 | 211 | 554 | 233 |
| 880 | catalytic activity | 4 | 209 | 623 | 502 |
| 881 | Computer Architecture | 5 | 207 | 367 | 159 |
| 881 | Genetic translocation | 11 | 207 | 40 | 125 |
| 881 | Database Security | 4 | 207 | 57 | 11 |
| 881 | plasmids | 11 | 207 | 40 | 125 |
| 885 | preventive medicine | 7 | 206 | 1088 | 1252 |
| 885 | Autoantibodies | 9 | 206 | 325 | 560 |
| 887 | Happiness | 5 | 204 | 287 | 249 |
| 887 | Food preferences | 6 | 204 | 244 | 297 |
| 889 | Computer-Aided Design | 19 | 203 | 358 | 748 |
| 889 | curriculum evaluation | 8 | 203 | 148 | 151 |
| 889 | planning | 7 | 203 | 432 | 321 |
| 892 | Transport | 4 | 201 | 639 | 517 |
| 893 | Economic Geography | 5 | 200 | 258 | 177 |
| 893 | Heart Failure | 4 | 200 | 470 | 474 |
| 893 | construction | 5 | 200 | 133 | 123 |
| 893 | Thorax | 6 | 200 | 391 | 477 |
| 897 | Veterinary Pathology | 4 | 199 | 351 | 150 |
| 898 | Political Sociology | 6 | 198 | 306 | 255 |
| 898 | radiation monitoring | 12 | 198 | 247 | 198 |
| 898 | Socialism | 2 | 198 | 282 | 68 |
| 898 | refugees | 9 | 198 | 98 | 95 |
| 898 | Capitalism | 2 | 198 | 266 | 59 |
| 898 | Radiation dosimetry | 12 | 198 | 182 | 129 |
| 898 | Phylogeny | 5 | 198 | 785 | 877 |
| 905 | Paleoecology | 8 | 197 | 743 | 874 |
| 905 | DNA methylation | 5 | 197 | 209 | 277 |
| 907 | anesthesia | 13 | 196 | 198 | 163 |
| 908 | Mechanical Engineering | 16 | 195 | 1256 | 1329 |
| 908 | Geriatric Psychiatry | 5 | 195 | 1037 | 929 |
| 910 | civil society | 1 | 194 | 142 | 5 |
| 910 | Imaging systems | 10 | 194 | 283 | 252 |
| 912 | Rural Development | 6 | 193 | 372 | 331 |
| 912 | educational planning | 5 | 193 | 294 | 260 |
| 914 | Intercultural Communication | 3 | 192 | 400 | 204 |
| 914 | Cross-Cultural Studies | 3 | 192 | 772 | 349 |
| 914 | radioactive waste | 5 | 192 | 611 | 919 |
| 914 | forest policy | 6 | 192 | 252 | 211 |
| 914 | industrial waste | 5 | 192 | 648 | 919 |
| 914 | Hazardous waste | 5 | 192 | 758 | 991 |
| 920 | motivation | 3 | 191 | 366 | 246 |
| 920 | Emotion | 3 | 191 | 207 | 190 |
| 922 | Discourse Analysis | 9 | 189 | 169 | 209 |
| 923 | Neonatology | 5 | 188 | 560 | 416 |
| 923 | Evolutionary economics | 2 | 188 | 261 | 91 |
| 925 | Ecosystem management | 5 | 187 | 584 | 554 |
| 925 | animals | 8 | 187 | 887 | 729 |
| 927 | Energy Storage | 8 | 186 | 844 | 1018 |
| 927 | patents | 3 | 186 | 138 | 27 |
| 929 | Histochemistry | 9 | 184 | 716 | 837 |
| 929 | Psychometrics | 10 | 184 | 240 | 352 |
| 929 | World Bank | 4 | 184 | 26 | 45 |
| 929 | ovary | 5 | 184 | 129 | 91 |
| 933 | War | 8 | 182 | 83 | 74 |
| 934 | Telecommunication Systems | 14 | 181 | 685 | 910 |
| 934 | Microbial Biotechnology | 7 | 181 | 588 | 723 |
| 934 | stocks | 4 | 181 | 67 | 81 |
| 937 | Human Geography | 14 | 180 | 504 | 692 |
| 937 | Culture | 19 | 180 | 342 | 438 |
| 939 | Minerals | 4 | 178 | 736 | 486 |
| 940 | Macroeconomics | 8 | 177 | 186 | 194 |
| 940 | Federal government | 11 | 177 | 33 | 45 |
| 940 | Microwaves | 30 | 177 | 291 | 461 |
| 940 | hygiene | 4 | 177 | 502 | 361 |
| 944 | Neurotransmitters | 20 | 176 | 159 | 363 |
| 945 | Geriatric Medicine | 9 | 175 | 47 | 89 |
| 945 | Fertilizers | 5 | 175 | 315 | 281 |
| 947 | Otolaryngology | 4 | 174 | 673 | 490 |
| 948 | Child welfare | 3 | 173 | 1374 | 754 |
| 949 | Urban Policy | 2 | 172 | 1121 | 632 |
| 949 | Maternal health services | 2 | 172 | 695 | 310 |
| 949 | pharmaceutical industry | 6 | 172 | 419 | 329 |
| 949 | Soil ecology | 10 | 172 | 403 | 764 |
| 953 | Biomarkers | 5 | 171 | 305 | 195 |
| 953 | health services | 6 | 171 | 908 | 778 |
| 955 | Religion and Psychology | 13 | 170 | 128 | 189 |
| 955 | freshwater biology | 4 | 170 | 937 | 730 |
| 957 | Applied Linguistics | 25 | 169 | 92 | 283 |
| 957 | Probability | 7 | 169 | 411 | 461 |
| 957 | Social perception | 7 | 169 | 52 | 113 |
| 960 | Simulation Methods | 18 | 168 | 208 | 540 |
| 960 | sports administration | 6 | 168 | 177 | 146 |
| 960 | Performance | 3 | 168 | 311 | 229 |
| 960 | natural disasters | 8 | 168 | 802 | 1090 |
| 964 | Radiochemistry | 20 | 167 | 379 | 560 |
| 965 | Neurolinguistics | 8 | 166 | 243 | 443 |
| 965 | Paleogeography | 7 | 166 | 687 | 878 |
| 965 | Genes | 4 | 166 | 1215 | 941 |
| 968 | Paleontology | 9 | 164 | 930 | 967 |
| 968 | Emerging infectious diseases | 3 | 164 | 377 | 265 |
| 970 | behavior modification | 2 | 163 | 535 | 446 |
| 970 | Consciousness | 7 | 163 | 281 | 365 |
| 972 | Radio waves | 10 | 162 | 158 | 136 |
| 972 | Creativity | 9 | 162 | 67 | 172 |
| 974 | Water Purification | 13 | 161 | 465 | 752 |
| 974 | Developmental Immunology | 5 | 161 | 717 | 713 |
| 974 | Health promotion | 8 | 161 | 1097 | 1372 |
| 974 | particles | 6 | 161 | 708 | 662 |
| 978 | Nuclear Chemistry | 11 | 160 | 638 | 651 |
| 978 | children | 7 | 160 | 343 | 445 |
| 980 | Systems Analysis | 9 | 159 | 634 | 724 |
| 981 | Regionalism | 10 | 158 | 70 | 116 |
| 981 | poverty | 8 | 158 | 172 | 259 |
| 983 | Carbohydrates | 4 | 157 | 445 | 479 |
| 984 | Asthma | 5 | 156 | 650 | 517 |
| 984 | Comparative Education | 2 | 156 | 386 | 69 |
| 984 | Protozoa | 3 | 156 | 499 | 373 |
| 987 | Animal Physiology | 6 | 155 | 114 | 157 |
| 987 | Natural selection | 6 | 155 | 114 | 157 |
| 987 | genetic selection | 6 | 155 | 114 | 157 |
| 990 | Experimental Design | 4 | 154 | 252 | 257 |
| 990 | Plant Morphology | 6 | 154 | 422 | 371 |
| 990 | Polymer Networks | 1 | 154 | 42 | 7 |
| 990 | Polymer Colloids | 1 | 154 | 42 | 7 |
| 994 | Morphology | 5 | 153 | 743 | 549 |
| 994 | Social Issues | 8 | 153 | 114 | 199 |
| 994 | Chemical kinetics | 10 | 153 | 357 | 288 |
| 997 | Ferroelectricity | 7 | 152 | 702 | 428 |
| 998 | Geometry | 15 | 151 | 582 | 537 |
| 998 | Psychosomatic Medicine | 11 | 151 | 476 | 915 |
| 1000 | Palliative Care | 7 | 150 | 711 | 702 |