| 1 | Biochemistry | 1,523 | 47.3K | 283 | 335 |
| 2 | Ecology | 816 | 38.4K | 166 | 206 |
| 3 | Biology | 957 | 36.7K | 372 | 621 |
| 4 | Science | 926 | 36.1K | 397 | 651 |
| 5 | Neurology | 739 | 35.3K | 255 | 273 |
| 6 | Pollution | 911 | 34.7K | 57 | 96 |
| 7 | Physics | 843 | 32.2K | 590 | 832 |
| 8 | Molecular Biology | 788 | 24.7K | 344 | 507 |
| 9 | Microbiology | 566 | 24.6K | 323 | 372 |
| 10 | Research | 818 | 24.3K | 313 | 334 |
| 11 | Environment | 388 | 24.0K | 202 | 193 |
| 12 | Botany | 498 | 23.9K | 157 | 132 |
| 13 | Chemistry | 715 | 23.9K | 647 | 696 |
| 14 | Hydrology | 464 | 21.2K | 24 | 14 |
| 15 | Medicine | 937 | 21.2K | 401 | 673 |
| 16 | environmental pollution | 615 | 20.0K | 43 | 72 |
| 17 | Environmental Health | 513 | 20.0K | 135 | 163 |
| 18 | Environmental Engineering | 355 | 16.8K | 103 | 102 |
| 19 | Geophysics | 613 | 16.4K | 173 | 246 |
| 20 | Soil Science | 392 | 14.4K | 31 | 32 |
| 21 | Biotechnology | 405 | 14.3K | 278 | 361 |
| 22 | United States | 529 | 13.8K | 198 | 193 |
| 23 | Neurochemistry | 254 | 12.8K | 96 | 84 |
| 24 | Toxicology | 459 | 12.4K | 118 | 159 |
| 25 | Pharmacology | 479 | 12.2K | 301 | 344 |
| 26 | Cell Biology | 375 | 12.0K | 251 | 530 |
| 27 | Catalysis | 278 | 11.7K | 309 | 298 |
| 28 | Natural history | 255 | 11.6K | 263 | 892 |
| 29 | Chemical Engineering | 268 | 11.5K | 388 | 299 |
| 30 | Virology | 304 | 10.8K | 191 | 429 |
| 31 | Cytology | 375 | 10.6K | 303 | 598 |
| 32 | Psychology | 481 | 10.3K | 218 | 321 |
| 33 | Environmental Chemistry | 243 | 10.1K | 26 | 79 |
| 34 | soil microbiology | 164 | 9.9K | 51 | 50 |
| 35 | Public Health | 459 | 9.9K | 240 | 345 |
| 36 | sanitation | 198 | 9.3K | 68 | 116 |
| 37 | Geochemistry | 233 | 9.3K | 143 | 151 |
| 38 | Environmental monitoring | 220 | 9.2K | 126 | 123 |
| 39 | Food | 183 | 9.1K | 141 | 78 |
| 40 | Geology | 270 | 9.0K | 251 | 241 |
| 41 | Genetics | 283 | 9.0K | 247 | 438 |
| 42 | food technology | 235 | 9.0K | 76 | 46 |
| 43 | Solid State Physics | 278 | 9.0K | 505 | 459 |
| 44 | Soil biology | 122 | 8.9K | 42 | 28 |
| 45 | Materials | 287 | 8.6K | 707 | 733 |
| 46 | Geography | 283 | 8.6K | 79 | 73 |
| 47 | Nanotechnology | 160 | 8.6K | 752 | 591 |
| 48 | Microbial Ecology | 142 | 8.5K | 170 | 182 |
| 49 | Condensed Matter | 237 | 8.5K | 543 | 489 |
| 50 | Physiology | 359 | 8.4K | 223 | 357 |
| 51 | Brain | 234 | 8.3K | 190 | 237 |
| 52 | Technology | 225 | 8.3K | 240 | 134 |
| 53 | Immunology | 239 | 8.2K | 414 | 520 |
| 54 | Biophysics | 330 | 8.2K | 515 | 516 |
| 55 | Animal Behavior | 213 | 7.8K | 115 | 144 |
| 56 | Birds | 211 | 7.7K | 31 | 14 |
| 57 | Plants | 102 | 7.7K | 220 | 144 |
| 58 | Ethology | 198 | 7.4K | 71 | 113 |
| 59 | Reproduction | 272 | 7.3K | 60 | 83 |
| 60 | Water | 183 | 7.2K | 119 | 191 |
| 61 | Biomass Energy | 96 | 7.1K | 214 | 121 |
| 62 | Nutrition | 253 | 7.1K | 267 | 342 |
| 63 | Psychiatry | 306 | 7.0K | 297 | 503 |
| 64 | Bioengineering | 181 | 6.8K | 358 | 479 |
| 65 | Breeding | 229 | 6.7K | 30 | 40 |
| 66 | Atmospheric Physics | 228 | 6.6K | 116 | 182 |
| 67 | Renewable Energy Sources | 58 | 6.5K | 343 | 163 |
| 68 | Neurobiology | 107 | 6.3K | 204 | 194 |
| 69 | Pharmacy | 149 | 5.9K | 151 | 88 |
| 70 | Agricultural Chemistry | 199 | 5.9K | 116 | 112 |
| 71 | Agriculture | 321 | 5.8K | 53 | 97 |
| 72 | Plant cells | 64 | 5.7K | 215 | 224 |
| 73 | Environmental pollutants | 240 | 5.7K | 19 | 45 |
| 74 | water supply | 136 | 5.7K | 40 | 57 |
| 75 | Biochemical Engineering | 134 | 5.7K | 300 | 428 |
| 76 | Neurophysiology | 155 | 5.5K | 365 | 479 |
| 76 | environmental protection | 154 | 5.5K | 157 | 157 |
| 78 | pain | 69 | 5.3K | 175 | 111 |
| 79 | pollutants | 226 | 5.3K | 12 | 42 |
| 80 | Nuclear Physics | 342 | 5.3K | 669 | 870 |
| 81 | Colloids | 142 | 5.2K | 495 | 430 |
| 82 | Zoology | 171 | 5.1K | 159 | 112 |
| 83 | Earth Sciences | 127 | 5.1K | 355 | 297 |
| 84 | Meteorites | 102 | 5.1K | 128 | 146 |
| 85 | Sports Medicine | 104 | 4.9K | 325 | 133 |
| 86 | Planets | 145 | 4.9K | 229 | 273 |
| 87 | Psychophysiology | 172 | 4.8K | 315 | 420 |
| 88 | plant molecular biology | 94 | 4.8K | 170 | 225 |
| 89 | Biomedical Engineering | 221 | 4.8K | 313 | 463 |
| 90 | California | 78 | 4.7K | 31 | 9 |
| 91 | Genomics | 148 | 4.5K | 252 | 268 |
| 92 | Vaccines | 146 | 4.5K | 86 | 91 |
| 93 | Sports | 84 | 4.5K | 289 | 92 |
| 94 | Biodiversity conservation | 52 | 4.5K | 341 | 286 |
| 95 | Plant physiology | 144 | 4.4K | 143 | 244 |
| 96 | Human genetics | 39 | 4.3K | 755 | 908 |
| 97 | Mental Disorders | 151 | 4.3K | 295 | 410 |
| 98 | Mathematics | 376 | 4.2K | 559 | 560 |
| 99 | Pharmaceutical Chemistry | 146 | 4.2K | 469 | 506 |
| 100 | Epidemiology | 149 | 4.2K | 388 | 422 |
| 101 | Diet | 92 | 4.1K | 272 | 277 |
| 102 | Environmental Toxicology | 128 | 4.0K | 107 | 163 |
| 103 | Agronomy | 107 | 4.0K | 48 | 48 |
| 104 | Astronomy | 69 | 3.9K | 949 | 814 |
| 105 | Surface Chemistry | 152 | 3.9K | 462 | 519 |
| 105 | Cognition | 120 | 3.9K | 170 | 196 |
| 107 | Nanostructured Materials | 126 | 3.9K | 436 | 421 |
| 108 | Health | 202 | 3.9K | 88 | 148 |
| 109 | Climate change | 32 | 3.9K | 260 | 244 |
| 109 | Eutrophication | 32 | 3.9K | 256 | 242 |
| 111 | Parasitology | 112 | 3.8K | 220 | 145 |
| 112 | Bioinformatics | 116 | 3.8K | 141 | 238 |
| 113 | Endocrinology | 114 | 3.6K | 494 | 651 |
| 114 | Biocompatible Materials | 86 | 3.6K | 771 | 781 |
| 115 | Environmental Policy | 97 | 3.6K | 305 | 380 |
| 116 | Fluid Mechanics | 116 | 3.5K | 135 | 122 |
| 117 | Plant diseases | 138 | 3.4K | 175 | 157 |
| 118 | Medical Microbiology | 64 | 3.4K | 424 | 360 |
| 119 | Computational Biology | 114 | 3.4K | 230 | 338 |
| 120 | Neuropsychology | 120 | 3.4K | 234 | 279 |
| 121 | Mineralogy | 79 | 3.3K | 202 | 153 |
| 122 | Clinical Chemistry | 105 | 3.3K | 378 | 398 |
| 123 | Animal breeding | 141 | 3.3K | 16 | 19 |
| 124 | Plant genetic engineering | 63 | 3.3K | 75 | 54 |
| 125 | Animal ecology | 97 | 3.3K | 92 | 109 |
| 126 | Behavior | 107 | 3.2K | 407 | 534 |
| 127 | Spectrum analysis | 204 | 3.2K | 549 | 998 |
| 128 | Analytical Chemistry | 113 | 3.2K | 780 | 755 |
| 129 | Metabolism | 95 | 3.2K | 526 | 668 |
| 130 | Mental illness | 93 | 3.1K | 226 | 327 |
| 131 | Petrology | 52 | 3.1K | 219 | 138 |
| 132 | Polymers | 78 | 3.1K | 1196 | 862 |
| 133 | Pediatrics | 95 | 3.1K | 389 | 471 |
| 134 | baking | 98 | 3.0K | 5 | 6 |
| 135 | viruses | 73 | 3.0K | 260 | 315 |
| 136 | Nervous system | 66 | 3.0K | 457 | 464 |
| 137 | Ornithology | 129 | 2.9K | 40 | 37 |
| 138 | drug therapy | 102 | 2.9K | 292 | 306 |
| 139 | Materials Science | 115 | 2.9K | 871 | 986 |
| 140 | Sociology | 159 | 2.8K | 250 | 338 |
| 141 | Meteorology | 82 | 2.8K | 411 | 478 |
| 142 | nanoscience | 37 | 2.7K | 921 | 619 |
| 143 | Criminal psychology | 79 | 2.7K | 58 | 63 |
| 144 | personality | 37 | 2.7K | 378 | 251 |
| 144 | medical education | 108 | 2.7K | 182 | 174 |
| 146 | Agricultural Ecology | 71 | 2.6K | 80 | 129 |
| 147 | Photonics | 9 | 2.6K | 1214 | 328 |
| 148 | Light | 12 | 2.6K | 521 | 217 |
| 149 | genome | 40 | 2.6K | 331 | 344 |
| 150 | Biomass | 32 | 2.6K | 48 | 24 |
| 151 | Paleoecology | 72 | 2.5K | 74 | 83 |
| 152 | Paleoclimatology | 68 | 2.5K | 103 | 110 |
| 153 | Cancer | 98 | 2.5K | 713 | 960 |
| 154 | Energy Conversion | 23 | 2.5K | 446 | 318 |
| 155 | Water pollution | 63 | 2.5K | 482 | 496 |
| 156 | Paleogeography | 67 | 2.5K | 58 | 74 |
| 157 | Spine | 24 | 2.4K | 211 | 88 |
| 158 | Obstetrics | 166 | 2.4K | 210 | 343 |
| 159 | Marine Biology | 74 | 2.4K | 517 | 464 |
| 160 | human behavior | 62 | 2.3K | 424 | 545 |
| 161 | Organic Chemistry | 93 | 2.3K | 577 | 596 |
| 162 | Protozoa | 6 | 2.3K | 304 | 29 |
| 163 | Veterinary Immunology | 93 | 2.3K | 18 | 20 |
| 164 | Soil ecology | 42 | 2.3K | 82 | 51 |
| 165 | Plant Biotechnology | 18 | 2.3K | 238 | 43 |
| 166 | Environmental Management | 99 | 2.3K | 195 | 429 |
| 167 | Food additives | 70 | 2.3K | 75 | 97 |
| 168 | Embryology | 62 | 2.2K | 311 | 414 |
| 169 | ecosystem | 52 | 2.2K | 166 | 213 |
| 170 | coal | 49 | 2.2K | 240 | 184 |
| 171 | correctional psychology | 43 | 2.2K | 10 | 6 |
| 172 | Astrocytes | 29 | 2.2K | 53 | 46 |
| 173 | Mathematical Physics | 103 | 2.2K | 504 | 492 |
| 174 | environmental exposure | 81 | 2.2K | 119 | 136 |
| 175 | Pathology | 71 | 2.2K | 470 | 556 |
| 176 | natural products | 26 | 2.1K | 519 | 148 |
| 177 | Entomology | 60 | 2.1K | 477 | 238 |
| 178 | Industrial Engineering | 52 | 2.1K | 307 | 189 |
| 179 | Anatomy | 77 | 2.1K | 293 | 408 |
| 179 | mass transfer | 59 | 2.1K | 230 | 205 |
| 179 | management | 77 | 2.1K | 593 | 743 |
| 182 | Bioorganic chemistry | 74 | 2.1K | 490 | 535 |
| 183 | Lipids | 40 | 2.1K | 220 | 185 |
| 184 | Environmental Law | 19 | 2.0K | 347 | 173 |
| 185 | Biodiversity | 42 | 2.0K | 540 | 394 |
| 186 | gene mapping | 49 | 2.0K | 381 | 384 |
| 187 | Developmental Biology | 60 | 2.0K | 451 | 604 |
| 188 | Industrial Microbiology | 59 | 2.0K | 221 | 269 |
| 189 | Education | 166 | 2.0K | 374 | 461 |
| 190 | Memory | 64 | 2.0K | 366 | 364 |
| 191 | biological factors | 14 | 2.0K | 930 | 205 |
| 192 | Plant Ecology | 64 | 2.0K | 265 | 338 |
| 193 | China | 51 | 2.0K | 585 | 247 |
| 194 | fertility | 53 | 2.0K | 218 | 217 |
| 195 | government | 135 | 1.9K | 27 | 52 |
| 196 | clay | 46 | 1.9K | 44 | 47 |
| 197 | Biogeochemistry | 34 | 1.9K | 318 | 276 |
| 197 | Chromosome mapping | 44 | 1.9K | 364 | 308 |
| 199 | Agricultural Engineering | 56 | 1.9K | 30 | 17 |
| 200 | Parasitic Diseases | 60 | 1.9K | 311 | 312 |
| 201 | Bacteriology | 60 | 1.9K | 383 | 527 |
| 202 | starch | 30 | 1.8K | 30 | 4 |
| 203 | Diabetes | 38 | 1.8K | 690 | 700 |
| 204 | Social Sciences | 106 | 1.8K | 403 | 351 |
| 205 | Diabetes mellitus | 38 | 1.8K | 633 | 666 |
| 206 | nucleic acids | 52 | 1.8K | 397 | 616 |
| 207 | Pediatric Neurology | 18 | 1.8K | 465 | 375 |
| 208 | Economics | 145 | 1.8K | 599 | 789 |
| 209 | Physical fitness | 36 | 1.7K | 158 | 101 |
| 210 | Geriatrics | 129 | 1.7K | 330 | 512 |
| 211 | Plant tissue culture | 72 | 1.7K | 26 | 30 |
| 212 | Environmental Geology | 48 | 1.7K | 182 | 151 |
| 213 | Social behavior | 51 | 1.7K | 170 | 211 |
| 214 | Operations Research | 51 | 1.7K | 484 | 392 |
| 215 | Astrophysics | 123 | 1.7K | 826 | 1285 |
| 216 | Research Design | 40 | 1.7K | 220 | 189 |
| 217 | Public Policy | 55 | 1.7K | 262 | 221 |
| 218 | Health Services Research | 74 | 1.7K | 210 | 217 |
| 219 | Environmental Microbiology | 29 | 1.7K | 322 | 282 |
| 219 | polymerization | 46 | 1.7K | 1364 | 1017 |
| 221 | Parasites | 65 | 1.7K | 145 | 155 |
| 222 | Atmospheric Chemistry | 54 | 1.7K | 249 | 324 |
| 223 | Quantum Gravity | 70 | 1.6K | 712 | 729 |
| 224 | Schizophrenia | 9 | 1.6K | 743 | 237 |
| 225 | United Kingdom | 46 | 1.6K | 347 | 395 |
| 226 | Plant cell culture | 50 | 1.6K | 32 | 31 |
| 227 | Diagnostic Imaging | 37 | 1.6K | 524 | 345 |
| 228 | Regional Planning | 60 | 1.6K | 220 | 183 |
| 229 | Clinical Psychology | 38 | 1.6K | 360 | 392 |
| 229 | Mycology | 69 | 1.6K | 201 | 283 |
| 231 | Radiation | 90 | 1.6K | 200 | 257 |
| 231 | Decision making | 50 | 1.6K | 177 | 190 |
| 233 | Plant breeding | 66 | 1.6K | 68 | 61 |
| 234 | Chemical Ecology | 29 | 1.6K | 93 | 52 |
| 234 | epilepsy | 29 | 1.6K | 197 | 89 |
| 236 | language | 9 | 1.6K | 446 | 101 |
| 237 | Human-Computer Interaction | 29 | 1.6K | 278 | 95 |
| 238 | Structural dynamics | 19 | 1.6K | 400 | 180 |
| 239 | Electrochemistry | 96 | 1.6K | 840 | 978 |
| 240 | Image Processing | 27 | 1.6K | 602 | 330 |
| 241 | Electronics | 124 | 1.5K | 501 | 637 |
| 241 | Insects | 22 | 1.5K | 533 | 155 |
| 243 | Health Policy | 51 | 1.5K | 455 | 358 |
| 244 | Genetic engineering | 73 | 1.5K | 224 | 493 |
| 245 | Psychopharmacology | 57 | 1.5K | 302 | 472 |
| 245 | Learning | 72 | 1.5K | 147 | 283 |
| 247 | Geotechnical Engineering | 38 | 1.5K | 122 | 95 |
| 248 | Criminology | 26 | 1.5K | 295 | 112 |
| 249 | Respiration | 59 | 1.5K | 249 | 309 |
| 250 | Cosmochemistry | 60 | 1.5K | 60 | 117 |
| 251 | Climatology | 53 | 1.5K | 392 | 480 |
| 252 | Engineering | 81 | 1.5K | 680 | 578 |
| 253 | clay minerals | 32 | 1.5K | 24 | 26 |
| 253 | Virulence | 30 | 1.5K | 322 | 386 |
| 255 | health behavior | 41 | 1.5K | 186 | 155 |
| 256 | Wildlife conservation | 24 | 1.4K | 386 | 267 |
| 257 | Medical genetics | 39 | 1.4K | 1068 | 1188 |
| 257 | pheromones | 25 | 1.4K | 96 | 58 |
| 259 | Computer Vision | 9 | 1.4K | 719 | 272 |
| 260 | Oceanography | 46 | 1.4K | 523 | 517 |
| 261 | Soil fertility | 27 | 1.4K | 43 | 43 |
| 262 | Cytogenetics | 40 | 1.4K | 351 | 529 |
| 263 | soil management | 34 | 1.4K | 68 | 60 |
| 264 | Physical Therapy | 38 | 1.4K | 284 | 268 |
| 264 | Animal genetics | 68 | 1.4K | 65 | 71 |
| 266 | Hematology | 102 | 1.4K | 829 | 1123 |
| 267 | Histology | 67 | 1.4K | 261 | 421 |
| 268 | Nursing | 108 | 1.4K | 117 | 144 |
| 268 | proteins | 65 | 1.4K | 330 | 461 |
| 270 | Social Psychology | 65 | 1.4K | 387 | 534 |
| 270 | Obesity | 29 | 1.4K | 696 | 555 |
| 272 | Sedimentology | 36 | 1.4K | 49 | 57 |
| 273 | Molecular Genetics | 45 | 1.4K | 443 | 548 |
| 274 | Clinical Biochemistry | 69 | 1.4K | 126 | 161 |
| 275 | Nuclear Fusion | 61 | 1.4K | 142 | 120 |
| 276 | Signal Transduction | 33 | 1.4K | 305 | 329 |
| 277 | Gerontology | 103 | 1.4K | 232 | 284 |
| 278 | energy conservation | 35 | 1.4K | 370 | 426 |
| 279 | Business Ethics | 28 | 1.4K | 155 | 196 |
| 280 | tillage | 33 | 1.3K | 43 | 49 |
| 281 | Fisheries | 48 | 1.3K | 349 | 326 |
| 282 | Attention | 35 | 1.3K | 527 | 391 |
| 283 | Medical Anthropology | 41 | 1.3K | 240 | 312 |
| 284 | hydrocolloids | 21 | 1.3K | 167 | 141 |
| 285 | computer networks | 25 | 1.3K | 815 | 304 |
| 286 | Geomorphology | 38 | 1.3K | 281 | 309 |
| 286 | Physical Chemistry | 45 | 1.3K | 597 | 656 |
| 288 | Agricultural Science | 26 | 1.3K | 43 | 61 |
| 289 | Perception | 34 | 1.3K | 610 | 481 |
| 290 | mammals | 35 | 1.3K | 183 | 100 |
| 291 | Medical Laboratory Science | 52 | 1.3K | 326 | 502 |
| 291 | System analysis | 50 | 1.3K | 456 | 380 |
| 293 | Visual Perception | 39 | 1.3K | 473 | 414 |
| 294 | Synchrotron Radiation | 73 | 1.3K | 26 | 31 |
| 295 | Forest Ecology | 37 | 1.2K | 209 | 213 |
| 296 | Soil Mechanics | 37 | 1.2K | 289 | 253 |
| 297 | Mechanical Engineering | 88 | 1.2K | 308 | 300 |
| 298 | Educational Psychology | 64 | 1.2K | 217 | 314 |
| 299 | Electrical Engineering | 97 | 1.2K | 572 | 378 |
| 300 | Primary health care | 63 | 1.2K | 238 | 243 |
| 301 | Molecular structure | 49 | 1.2K | 469 | 615 |
| 302 | Hydrometeorology | 26 | 1.2K | 37 | 55 |
| 303 | arthritis | 36 | 1.2K | 361 | 473 |
| 304 | animals | 54 | 1.2K | 128 | 95 |
| 305 | Ore deposits | 20 | 1.2K | 160 | 73 |
| 306 | Transgenic plants | 41 | 1.2K | 27 | 51 |
| 307 | Energy Policy | 32 | 1.2K | 755 | 800 |
| 307 | Environmental Education | 23 | 1.2K | 48 | 15 |
| 309 | Plant Genetics | 30 | 1.2K | 117 | 174 |
| 310 | Solid State Chemistry | 55 | 1.2K | 569 | 538 |
| 311 | Control Theory | 30 | 1.2K | 528 | 285 |
| 311 | enzymes | 41 | 1.2K | 270 | 310 |
| 313 | Bones | 29 | 1.2K | 246 | 226 |
| 314 | Hydraulic Engineering | 54 | 1.2K | 176 | 192 |
| 315 | rehabilitation | 62 | 1.2K | 326 | 477 |
| 316 | Critical Care | 75 | 1.2K | 227 | 680 |
| 316 | Aging | 102 | 1.2K | 401 | 716 |
| 318 | Computer Science | 40 | 1.1K | 386 | 160 |
| 319 | crime | 5 | 1.1K | 563 | 83 |
| 320 | Critical Care Medicine | 73 | 1.1K | 235 | 691 |
| 321 | Computer Graphics | 27 | 1.1K | 489 | 319 |
| 322 | Juvenile delinquency | 3 | 1.1K | 340 | 24 |
| 323 | Immunochemistry | 33 | 1.1K | 184 | 98 |
| 324 | Evolution | 36 | 1.1K | 538 | 673 |
| 325 | Manufacturing Processes | 34 | 1.1K | 678 | 485 |
| 326 | occupational diseases | 24 | 1.1K | 233 | 152 |
| 327 | Forest Management | 35 | 1.1K | 205 | 218 |
| 328 | Engineering Geology | 22 | 1.1K | 515 | 324 |
| 329 | health services accessibility | 37 | 1.1K | 151 | 98 |
| 330 | Conservation Biology | 20 | 1.1K | 384 | 316 |
| 331 | plant communities | 32 | 1.1K | 265 | 372 |
| 332 | Optical materials | 36 | 1.1K | 851 | 931 |
| 333 | Chemotherapy | 30 | 1.1K | 394 | 279 |
| 334 | Drug design | 24 | 1.1K | 490 | 324 |
| 335 | Animal Nutrition | 49 | 1.0K | 74 | 73 |
| 336 | Fungi | 32 | 1.0K | 239 | 280 |
| 337 | brewing | 52 | 1.0K | 23 | 16 |
| 338 | psychotherapy | 42 | 1.0K | 314 | 387 |
| 339 | Geodynamics | 23 | 1.0K | 318 | 262 |
| 340 | atmospheric models | 59 | 1.0K | 118 | 244 |
| 341 | Marine Pollution | 18 | 1.0K | 457 | 292 |
| 342 | Scandinavia | 23 | 1.0K | 165 | 96 |
| 343 | Child | 56 | 1.0K | 486 | 594 |
| 344 | Metabolic diseases | 40 | 1.0K | 761 | 1151 |
| 345 | Aquatic ecology | 44 | 996 | 87 | 110 |
| 346 | Production Engineering | 27 | 995 | 622 | 298 |
| 347 | Teaching | 42 | 992 | 325 | 287 |
| 347 | Minerals | 34 | 992 | 63 | 65 |
| 349 | Fluid Dynamics | 37 | 985 | 258 | 222 |
| 350 | Therapeutics | 43 | 982 | 406 | 611 |
| 351 | Data Mining | 17 | 979 | 555 | 327 |
| 351 | Medical Physics | 49 | 979 | 409 | 494 |
| 353 | Systems Engineering | 63 | 971 | 225 | 287 |
| 354 | Mass Spectrometry | 36 | 964 | 278 | 295 |
| 354 | biological evolution | 38 | 964 | 600 | 885 |
| 356 | infection | 16 | 960 | 817 | 524 |
| 357 | Microorganisms | 21 | 957 | 384 | 390 |
| 357 | Kidney diseases | 72 | 957 | 81 | 191 |
| 359 | Radiation effects | 26 | 954 | 61 | 64 |
| 360 | Medical Technology | 30 | 946 | 371 | 287 |
| 361 | Aquaculture | 13 | 931 | 792 | 364 |
| 362 | Drug delivery systems | 18 | 920 | 574 | 456 |
| 363 | Great Lakes | 23 | 918 | 67 | 50 |
| 364 | marketing | 27 | 913 | 589 | 581 |
| 365 | data collection | 11 | 912 | 529 | 239 |
| 366 | Molecular Spectroscopy | 82 | 908 | 118 | 297 |
| 367 | Personality Assessment | 23 | 895 | 138 | 138 |
| 368 | Paleontology | 62 | 892 | 227 | 324 |
| 369 | Clinical Pharmacology | 33 | 891 | 361 | 339 |
| 370 | Australia | 54 | 887 | 259 | 266 |
| 371 | Hormones | 25 | 876 | 429 | 415 |
| 372 | energy resources | 16 | 875 | 556 | 553 |
| 373 | Quantum Chemistry | 56 | 869 | 58 | 95 |
| 374 | cryosphere | 23 | 867 | 117 | 124 |
| 375 | Composite Materials | 20 | 866 | 1261 | 1066 |
| 376 | Multiphase Flow | 20 | 861 | 73 | 63 |
| 377 | sex crimes | 45 | 860 | 59 | 76 |
| 378 | Infections | 7 | 848 | 954 | 463 |
| 379 | Nephrology | 62 | 847 | 68 | 169 |
| 380 | Sedimentary rocks | 22 | 846 | 109 | 104 |
| 381 | Bioinorganic chemistry | 37 | 824 | 327 | 346 |
| 382 | Production Management | 12 | 821 | 543 | 468 |
| 382 | Body Image | 13 | 821 | 54 | 36 |
| 384 | Invertebrates | 32 | 817 | 74 | 80 |
| 385 | Human biology | 32 | 815 | 86 | 70 |
| 386 | Diagnostic microbiology | 23 | 810 | 468 | 724 |
| 387 | Zeolites | 11 | 809 | 434 | 225 |
| 388 | Cross-Cultural Studies | 19 | 808 | 116 | 45 |
| 389 | Oxidation-reduction | 7 | 804 | 573 | 332 |
| 390 | Tissue Engineering | 16 | 799 | 54 | 52 |
| 391 | Artificial Intelligence | 66 | 796 | 745 | 1154 |
| 392 | forestry | 17 | 795 | 65 | 37 |
| 393 | Chronic diseases | 27 | 789 | 193 | 340 |
| 394 | Immunity | 44 | 788 | 547 | 1270 |
| 395 | Dynamics | 51 | 787 | 254 | 271 |
| 396 | Palliative Care | 34 | 786 | 146 | 128 |
| 396 | Business | 40 | 786 | 490 | 797 |
| 396 | drugs | 35 | 786 | 554 | 599 |
| 399 | Risk assessment | 46 | 785 | 7 | 22 |
| 400 | Food Microbiology | 29 | 783 | 287 | 431 |
| 401 | Asia | 37 | 782 | 583 | 377 |
| 402 | Cell differentiation | 15 | 781 | 961 | 976 |
| 402 | freshwater biology | 36 | 781 | 129 | 215 |
| 404 | Neural circuitry | 24 | 775 | 591 | 554 |
| 405 | Antioxidants | 5 | 763 | 674 | 303 |
| 406 | Economic History | 55 | 760 | 824 | 818 |
| 406 | Public Administration | 51 | 760 | 231 | 283 |
| 406 | Proteome | 27 | 760 | 305 | 459 |
| 409 | Sustainable Development | 26 | 759 | 497 | 539 |
| 410 | food contamination | 30 | 758 | 148 | 100 |
| 410 | Metallography | 43 | 758 | 76 | 102 |
| 412 | Statistical physics | 66 | 757 | 1050 | 1383 |
| 413 | Child psychology | 34 | 754 | 410 | 618 |
| 414 | Experimental Psychology | 31 | 751 | 108 | 175 |
| 414 | Chemical industry | 21 | 751 | 438 | 188 |
| 416 | Soil | 14 | 747 | 21 | 20 |
| 417 | Drying | 39 | 744 | 19 | 42 |
| 418 | Biomechanics | 45 | 740 | 248 | 429 |
| 419 | Infertility | 20 | 739 | 428 | 436 |
| 420 | Groundwater | 37 | 734 | 107 | 121 |
| 421 | Oncology | 27 | 733 | 765 | 1487 |
| 422 | Green Chemistry | 15 | 732 | 881 | 794 |
| 423 | Water Conservation | 40 | 727 | 3 | 2 |
| 424 | Pharmaceutical Technology | 26 | 726 | 454 | 469 |
| 425 | Wildlife management | 41 | 725 | 98 | 89 |
| 426 | Developmental Immunology | 18 | 724 | 199 | 121 |
| 427 | Psycholinguistics | 35 | 721 | 219 | 322 |
| 428 | Optics | 78 | 720 | 1327 | 1553 |
| 429 | protein | 34 | 718 | 285 | 429 |
| 430 | Dialysis | 57 | 715 | 19 | 15 |
| 430 | Kidney transplantation | 57 | 715 | 18 | 15 |
| 432 | Analytical Biochemistry | 26 | 700 | 466 | 537 |
| 432 | Health Education | 54 | 700 | 333 | 482 |
| 434 | Trace elements | 24 | 699 | 10 | 13 |
| 435 | preventive medicine | 19 | 695 | 506 | 469 |
| 436 | Linguistics | 11 | 693 | 889 | 293 |
| 437 | Developmental Psychology | 12 | 692 | 535 | 397 |
| 438 | Anthropology | 70 | 691 | 246 | 345 |
| 439 | Chromatographic analysis | 28 | 687 | 558 | 423 |
| 440 | world | 17 | 684 | 241 | 292 |
| 441 | Microscopy | 30 | 682 | 397 | 345 |
| 442 | Medical innovations | 5 | 679 | 988 | 672 |
| 442 | city planning | 37 | 679 | 351 | 381 |
| 442 | Growth | 14 | 679 | 655 | 717 |
| 445 | Statistics | 37 | 677 | 893 | 833 |
| 445 | fuel cells | 13 | 677 | 690 | 586 |
| 447 | Food Policy | 15 | 673 | 95 | 85 |
| 448 | Electrophoresis | 28 | 665 | 470 | 494 |
| 449 | Heat Exchangers | 17 | 658 | 412 | 367 |
| 450 | Proteomics | 37 | 657 | 154 | 407 |
| 450 | Measurement | 32 | 657 | 217 | 212 |
| 452 | Chromatography | 24 | 655 | 516 | 389 |
| 453 | Technology Assessment | 31 | 653 | 8 | 23 |
| 454 | Cardiovascular diseases | 12 | 652 | 971 | 515 |
| 454 | Host-parasite interactions | 27 | 652 | 364 | 780 |
| 456 | Intercultural Communication | 11 | 649 | 117 | 34 |
| 457 | Psychiatric Nursing | 28 | 642 | 93 | 55 |
| 457 | finance | 50 | 642 | 487 | 675 |
| 459 | Mental Health | 41 | 637 | 321 | 394 |
| 460 | Robotics | 20 | 635 | 635 | 456 |
| 461 | Biogeography | 11 | 633 | 576 | 522 |
| 462 | agricultural policy | 13 | 628 | 66 | 64 |
| 463 | Microelectronics | 27 | 624 | 680 | 861 |
| 463 | older people | 68 | 624 | 246 | 296 |
| 465 | Medical Oncology | 28 | 623 | 727 | 883 |
| 466 | miniaturization | 15 | 622 | 938 | 974 |
| 467 | Computational Chemistry | 29 | 621 | 86 | 245 |
| 468 | Algebra | 72 | 618 | 205 | 220 |
| 469 | Cognitive neuroscience | 10 | 614 | 571 | 500 |
| 470 | health planning | 43 | 612 | 366 | 507 |
| 471 | Systems Biology | 28 | 611 | 405 | 374 |
| 472 | Ecohydrology | 25 | 610 | 17 | 22 |
| 472 | Vocational guidance | 16 | 610 | 333 | 332 |
| 474 | Physical organic chemistry | 29 | 603 | 339 | 372 |
| 475 | Exercise | 33 | 600 | 303 | 310 |
| 476 | Steroids | 14 | 599 | 475 | 319 |
| 477 | Adolescent | 31 | 598 | 585 | 647 |
| 478 | complementary therapies | 39 | 597 | 325 | 426 |
| 478 | Quality of life | 36 | 597 | 240 | 498 |
| 480 | Social policy | 40 | 595 | 140 | 177 |
| 481 | Environmental risk assessment | 37 | 592 | 12 | 47 |
| 482 | Ventilation | 27 | 589 | 75 | 112 |
| 483 | Mechatronics | 13 | 582 | 248 | 88 |
| 483 | Flexible manufacturing systems | 13 | 582 | 83 | 49 |
| 485 | Emergency Medicine | 20 | 579 | 626 | 424 |
| 486 | Gender Studies | 18 | 575 | 82 | 66 |
| 486 | homosexuality | 17 | 575 | 82 | 69 |
| 488 | Cost effectiveness | 29 | 574 | 5 | 9 |
| 489 | Computer-Aided Design | 11 | 573 | 632 | 305 |
| 489 | Membranes | 18 | 573 | 842 | 943 |
| 491 | Rheumatology | 29 | 571 | 354 | 605 |
| 491 | environmental control | 35 | 571 | 14 | 36 |
| 493 | Queer Studies | 16 | 569 | 40 | 49 |
| 493 | Natural resources | 20 | 569 | 207 | 255 |
| 495 | Molecular Microbiology | 13 | 568 | 458 | 543 |
| 496 | Fracture mechanics | 28 | 567 | 448 | 476 |
| 497 | Numerical Analysis | 28 | 557 | 842 | 686 |
| 498 | Forensic Psychiatry | 41 | 555 | 65 | 97 |
| 498 | Alternative Medicine | 35 | 555 | 339 | 455 |
| 500 | Parenteral nutrition | 7 | 554 | 837 | 489 |
| 500 | Chromosomes | 20 | 554 | 318 | 409 |
| 502 | Pregnancy | 18 | 548 | 259 | 188 |
| 503 | Oncogenes | 15 | 547 | 626 | 866 |
| 504 | Inflammation | 15 | 545 | 529 | 469 |
| 505 | Metals | 30 | 544 | 799 | 922 |
| 506 | Geriatric Psychiatry | 15 | 542 | 479 | 372 |
| 507 | natural disasters | 14 | 541 | 527 | 393 |
| 508 | Reading | 24 | 540 | 136 | 144 |
| 509 | Archaeology | 35 | 539 | 388 | 382 |
| 510 | Allergy | 21 | 535 | 514 | 931 |
| 511 | Human Geography | 30 | 528 | 279 | 302 |
| 511 | Signal Processing | 34 | 528 | 496 | 573 |
| 513 | economic policy | 43 | 527 | 554 | 613 |
| 514 | Orthopedics | 16 | 526 | 790 | 650 |
| 514 | mathematical analysis | 50 | 526 | 729 | 749 |
| 516 | Photochemistry | 30 | 525 | 447 | 651 |
| 516 | Catalysts | 18 | 525 | 164 | 160 |
| 518 | Nonlinear Dynamics | 30 | 524 | 856 | 998 |
| 519 | biopolymers | 10 | 517 | 754 | 483 |
| 520 | Ecosystem management | 27 | 513 | 108 | 229 |
| 521 | Hypertension | 16 | 511 | 875 | 1142 |
| 521 | free radicals | 13 | 511 | 789 | 804 |
| 523 | Vaccination | 12 | 510 | 66 | 43 |
| 524 | Child Development | 16 | 509 | 977 | 901 |
| 525 | Metallurgy | 37 | 505 | 760 | 983 |
| 526 | Comparative Physiology | 30 | 502 | 195 | 293 |
| 527 | Quality Control | 19 | 499 | 555 | 541 |
| 527 | Soft Condensed Matter | 11 | 499 | 662 | 457 |
| 527 | International Finance | 25 | 499 | 494 | 528 |
| 530 | cell interaction | 28 | 498 | 250 | 465 |
| 531 | Dermatology | 20 | 496 | 857 | 783 |
| 531 | Hydrodynamics | 12 | 496 | 282 | 218 |
| 531 | Holistic Health | 26 | 496 | 38 | 48 |
| 534 | gene therapy | 17 | 495 | 456 | 613 |
| 535 | Fertilizers | 18 | 493 | 112 | 102 |
| 536 | Telecommunication Systems | 27 | 490 | 378 | 393 |
| 536 | Sustainable agriculture | 20 | 490 | 170 | 184 |
| 536 | transgenic organisms | 13 | 490 | 43 | 47 |
| 536 | transgenic animals | 13 | 490 | 40 | 42 |
| 540 | Women's health | 21 | 488 | 379 | 339 |
| 541 | cell physiology | 17 | 483 | 700 | 968 |
| 542 | Statistical Mechanics | 39 | 479 | 210 | 257 |
| 543 | Pesticide residues | 15 | 478 | 7 | 17 |
| 544 | Agricultural systems | 20 | 477 | 70 | 123 |
| 545 | violence | 33 | 472 | 205 | 334 |
| 546 | Pharmacokinetics | 11 | 471 | 441 | 301 |
| 547 | livestock | 35 | 467 | 95 | 76 |
| 548 | Wireless Communication Systems | 31 | 466 | 543 | 551 |
| 549 | Language Disorders | 19 | 465 | 310 | 259 |
| 550 | Genetic therapy | 17 | 462 | 540 | 697 |
| 551 | Community Psychiatry | 16 | 461 | 385 | 406 |
| 551 | food handling | 12 | 461 | 339 | 306 |
| 553 | Magnetic Resonance Spectroscopy | 33 | 460 | 337 | 458 |
| 554 | Regional Development | 27 | 458 | 21 | 50 |
| 555 | Petroleum Engineering | 24 | 456 | 224 | 238 |
| 556 | Magnetohydrodynamics | 39 | 452 | 76 | 135 |
| 557 | Medical Ethics | 15 | 451 | 489 | 241 |
| 557 | Electrochemical Analysis | 25 | 451 | 486 | 603 |
| 559 | Elderly | 58 | 446 | 220 | 197 |
| 560 | sexual behavior | 17 | 443 | 194 | 232 |
| 561 | Urology | 10 | 440 | 1319 | 1015 |
| 562 | Industrial Safety | 25 | 437 | 253 | 315 |
| 562 | Carbon | 12 | 437 | 747 | 842 |
| 564 | Substance Abuse | 28 | 436 | 440 | 566 |
| 565 | health services | 33 | 435 | 199 | 327 |
| 566 | Qualitative Research | 33 | 434 | 55 | 127 |
| 566 | calcification | 7 | 434 | 363 | 249 |
| 568 | Organometallic compounds | 21 | 432 | 462 | 515 |
| 569 | Antibacterial agents | 11 | 431 | 300 | 245 |
| 570 | Insect biochemistry | 15 | 426 | 155 | 189 |
| 571 | Hydrogeology | 24 | 424 | 135 | 169 |
| 571 | disease vectors | 21 | 424 | 257 | 338 |
| 573 | feeding behavior | 5 | 421 | 649 | 307 |
| 573 | toxicity testing | 13 | 421 | 234 | 202 |
| 573 | Marine mammals | 7 | 421 | 183 | 86 |
| 576 | Developmental Neurobiology | 15 | 419 | 140 | 122 |
| 577 | nuclear magnetic resonance | 31 | 418 | 342 | 479 |
| 578 | Health promotion | 35 | 412 | 333 | 633 |
| 579 | Entrepreneurship | 6 | 411 | 776 | 559 |
| 580 | Bioethics | 10 | 409 | 530 | 197 |
| 581 | Chemical processes | 10 | 408 | 289 | 143 |
| 582 | Economic planning | 15 | 407 | 101 | 104 |
| 583 | Hippocampus | 5 | 405 | 250 | 178 |
| 583 | Recombinant DNA | 28 | 405 | 399 | 677 |
| 585 | Information Technology | 25 | 404 | 719 | 808 |
| 585 | global environmental change | 14 | 404 | 326 | 468 |
| 585 | eugenics | 15 | 404 | 192 | 160 |
| 588 | adolescence | 11 | 403 | 463 | 425 |
| 589 | hazard mitigation | 10 | 402 | 444 | 299 |
| 590 | Venture Capital | 4 | 400 | 240 | 281 |
| 590 | Photobiology | 20 | 400 | 378 | 533 |
| 590 | Migration | 16 | 400 | 20 | 8 |
| 590 | innovation | 5 | 400 | 516 | 401 |
| 594 | Information Systems | 16 | 399 | 508 | 508 |
| 595 | allied health | 18 | 398 | 31 | 49 |
| 596 | behavioral medicine | 19 | 397 | 457 | 681 |
| 597 | Water quality management | 31 | 396 | 437 | 675 |
| 598 | Molecular Pharmacology | 14 | 395 | 311 | 442 |
| 598 | Socioeconomic Factors | 16 | 395 | 235 | 225 |
| 598 | cytokines | 17 | 395 | 487 | 640 |
| 601 | Educational Technology | 35 | 394 | 251 | 468 |
| 601 | alcoholism | 21 | 394 | 542 | 732 |
| 603 | Development planning | 11 | 393 | 56 | 61 |
| 604 | Nutrition physiology | 22 | 389 | 159 | 314 |
| 604 | Enzyme | 7 | 389 | 289 | 201 |
| 606 | Developing countries | 33 | 387 | 588 | 983 |
| 607 | Immunotherapy | 18 | 386 | 834 | 1250 |
| 607 | Enteral nutrition | 4 | 386 | 974 | 470 |
| 609 | Liposomes | 3 | 383 | 649 | 198 |
| 610 | Population Genetics | 17 | 378 | 562 | 774 |
| 611 | Speech Disorders | 9 | 375 | 650 | 448 |
| 612 | Molecular evolution | 12 | 374 | 831 | 918 |
| 613 | Radio wave propagation | 38 | 373 | 89 | 170 |
| 613 | atmosphere | 19 | 373 | 241 | 319 |
| 615 | Clinical Immunology | 22 | 371 | 498 | 645 |
| 616 | Youth | 9 | 369 | 375 | 325 |
| 617 | Sexual health | 15 | 365 | 293 | 274 |
| 617 | animal diseases | 32 | 365 | 78 | 110 |
| 619 | Ichnology | 26 | 364 | 6 | 11 |
| 619 | Trace fossils | 26 | 364 | 6 | 11 |
| 619 | Europe | 51 | 364 | 787 | 1392 |
| 622 | Lipid bilayers | 2 | 359 | 688 | 191 |
| 623 | Health Services Administration | 35 | 358 | 165 | 430 |
| 623 | Nanoparticles | 17 | 358 | 853 | 1017 |
| 623 | Wetland ecology | 17 | 358 | 92 | 132 |
| 626 | Energy Storage | 15 | 357 | 572 | 608 |
| 626 | Animal husbandry | 12 | 357 | 160 | 66 |
| 626 | Molecular ecology | 14 | 357 | 573 | 801 |
| 629 | Pediatric Nursing | 17 | 355 | 134 | 117 |
| 630 | pain management | 23 | 354 | 139 | 228 |
| 631 | Law | 25 | 353 | 501 | 226 |
| 631 | industrial relations | 28 | 353 | 195 | 259 |
| 633 | Africa | 23 | 352 | 484 | 384 |
| 633 | Psychiatric Epidemiology | 8 | 352 | 278 | 242 |
| 635 | Writing | 16 | 351 | 48 | 70 |
| 636 | Transplantation | 24 | 350 | 472 | 882 |
| 636 | Solar System | 7 | 350 | 683 | 533 |
| 636 | Thorax | 17 | 350 | 155 | 242 |
| 639 | Nanostructures | 17 | 347 | 973 | 1288 |
| 640 | Tourism | 8 | 346 | 1072 | 866 |
| 640 | Radiobiology | 26 | 346 | 634 | 931 |
| 642 | Adsorption | 4 | 345 | 174 | 38 |
| 643 | Appetite | 2 | 343 | 963 | 313 |
| 644 | Antibodies | 11 | 342 | 355 | 355 |
| 644 | Antigens | 11 | 342 | 514 | 467 |
| 646 | Transportation | 49 | 340 | 329 | 826 |
| 647 | histological techniques | 7 | 337 | 503 | 441 |
| 647 | Disease | 4 | 337 | 292 | 674 |
| 649 | Carcinogenesis | 10 | 334 | 568 | 644 |
| 649 | phenomics | 10 | 334 | 9 | 8 |
| 651 | air quality management | 9 | 333 | 213 | 183 |
| 651 | Hemodynamics | 6 | 333 | 508 | 468 |
| 651 | Heterocyclic compounds | 11 | 333 | 557 | 200 |
| 654 | drug development | 9 | 331 | 652 | 988 |
| 655 | polar regions | 31 | 330 | 123 | 271 |
| 655 | diseases | 2 | 330 | 558 | 698 |
| 657 | Information Science | 21 | 328 | 924 | 1326 |
| 657 | rivers | 10 | 328 | 105 | 96 |
| 659 | Sleep Disorders | 64 | 327 | 285 | 889 |
| 659 | supercritical fluids | 6 | 327 | 283 | 178 |
| 661 | Geographic information systems | 23 | 326 | 229 | 248 |
| 662 | International Education | 7 | 324 | 101 | 38 |
| 663 | Sports Psychology | 5 | 323 | 77 | 47 |
| 664 | Ultrasonics | 11 | 319 | 526 | 590 |
| 665 | Software Engineering | 32 | 318 | 178 | 335 |
| 666 | hospice care | 14 | 317 | 168 | 106 |
| 666 | Plastics | 8 | 317 | 1267 | 738 |
| 668 | Pharmacognosy | 9 | 316 | 1240 | 1158 |
| 668 | amino acids | 7 | 316 | 322 | 213 |
| 670 | Geometry | 17 | 314 | 579 | 290 |
| 670 | biomedicine | 16 | 314 | 230 | 285 |
| 672 | Gene expression regulation | 12 | 312 | 509 | 673 |
| 673 | Plasma devices | 12 | 311 | 142 | 167 |
| 674 | Molecular cloning | 24 | 309 | 412 | 778 |
| 674 | Cardiovascular system | 16 | 309 | 850 | 1532 |
| 674 | Fuzzy systems | 18 | 309 | 554 | 460 |
| 677 | brain diseases | 1 | 306 | 32 | 2 |
| 678 | Cognitive Science | 6 | 304 | 1231 | 843 |
| 678 | Speech | 8 | 304 | 575 | 483 |
| 678 | Genes | 20 | 304 | 336 | 519 |
| 681 | Geobiology | 14 | 303 | 169 | 195 |
| 682 | Leadership | 8 | 301 | 225 | 315 |
| 683 | Genetic recombination | 23 | 300 | 414 | 783 |
| 684 | Process Control | 9 | 299 | 491 | 663 |
| 684 | Remote Sensing | 36 | 299 | 252 | 460 |
| 686 | Magnetic Materials | 15 | 298 | 747 | 822 |
| 686 | particles | 18 | 298 | 252 | 334 |
| 686 | biological monitoring | 14 | 298 | 107 | 193 |
| 689 | indoor air pollution | 8 | 295 | 176 | 177 |
| 689 | Sick building syndrome | 8 | 295 | 176 | 177 |
| 691 | soil conservation | 17 | 294 | 186 | 321 |
| 691 | Air Conditioning | 19 | 294 | 31 | 30 |
| 691 | heating | 19 | 294 | 29 | 30 |
| 691 | food industry | 17 | 294 | 103 | 75 |
| 695 | India | 8 | 293 | 1200 | 222 |
| 696 | Obstetric Nursing | 14 | 292 | 108 | 81 |
| 696 | Genetic regulation | 11 | 292 | 658 | 983 |
| 696 | commerce | 9 | 292 | 1004 | 794 |
| 699 | Physical Geography | 13 | 289 | 198 | 192 |
| 699 | Dementia | 32 | 289 | 473 | 600 |
| 699 | crops | 18 | 289 | 18 | 13 |
| 702 | Hazardous waste | 11 | 287 | 401 | 670 |
| 703 | herbicides | 20 | 286 | 62 | 97 |
| 704 | pharmaceutical industry | 8 | 285 | 327 | 170 |
| 705 | Jurisprudence | 11 | 283 | 530 | 368 |
| 706 | Radiology | 23 | 282 | 611 | 757 |
| 707 | Morphology | 15 | 281 | 320 | 329 |
| 707 | Thrombosis | 11 | 281 | 681 | 744 |
| 707 | Contraception | 10 | 281 | 322 | 273 |
| 710 | Special Education | 14 | 280 | 319 | 251 |
| 710 | Geriatric Oncology | 19 | 280 | 142 | 329 |
| 712 | Biopharmaceutics | 9 | 278 | 739 | 677 |
| 713 | Dyslexia | 20 | 276 | 15 | 54 |
| 713 | Sleep | 27 | 276 | 607 | 972 |
| 715 | Civil Engineering | 47 | 275 | 367 | 539 |
| 715 | professional practice | 59 | 275 | 1 | 1 |
| 717 | Radiography | 13 | 272 | 304 | 401 |
| 718 | Asthma | 20 | 269 | 146 | 244 |
| 718 | Social work | 19 | 269 | 528 | 499 |
| 720 | Adult Education | 19 | 268 | 131 | 106 |
| 720 | Reproductive toxicology | 6 | 268 | 341 | 247 |
| 720 | gene transfer | 7 | 268 | 120 | 92 |
| 720 | genetic transformation | 7 | 268 | 120 | 92 |
| 724 | Sustainable Engineering | 13 | 267 | 853 | 1103 |
| 724 | Nonlinear systems | 2 | 267 | 901 | 235 |
| 724 | wildlife diseases | 21 | 267 | 7 | 15 |
| 727 | drug addiction | 16 | 264 | 490 | 767 |
| 728 | Mental Health Services | 12 | 263 | 640 | 596 |
| 729 | Occupational Health | 17 | 262 | 413 | 462 |
| 729 | Oxidative stress | 16 | 262 | 375 | 824 |
| 731 | Mobile Computing | 8 | 260 | 682 | 380 |
| 731 | Environmental Geochemistry | 11 | 260 | 142 | 129 |
| 731 | counseling | 13 | 260 | 631 | 656 |
| 731 | natural gas | 16 | 260 | 129 | 189 |
| 735 | Landscape Ecology | 6 | 258 | 341 | 292 |
| 735 | machinery | 11 | 258 | 377 | 283 |
| 735 | Consciousness | 8 | 258 | 258 | 224 |
| 738 | Veterinary Pathology | 18 | 256 | 87 | 87 |
| 738 | child behavior | 3 | 256 | 451 | 255 |
| 738 | Birth control | 10 | 256 | 199 | 223 |
| 741 | Animal Physiology | 6 | 254 | 114 | 80 |
| 741 | Natural selection | 6 | 254 | 114 | 80 |
| 741 | genetic selection | 6 | 254 | 114 | 80 |
| 744 | Crystal growth | 9 | 253 | 668 | 576 |
| 745 | Periglacial processes | 5 | 252 | 94 | 76 |
| 745 | Permafrost | 5 | 252 | 94 | 76 |
| 745 | Frozen ground | 5 | 252 | 98 | 76 |
| 748 | blood transfusion | 15 | 251 | 333 | 381 |
| 749 | Dietetics | 20 | 250 | 278 | 352 |
| 750 | carcinogens | 11 | 248 | 514 | 780 |
| 751 | Urban Geography | 12 | 247 | 78 | 88 |
| 752 | Simulation Methods | 8 | 246 | 581 | 333 |
| 752 | embryonic development | 7 | 246 | 268 | 231 |
| 752 | Phylogeny | 6 | 246 | 720 | 694 |
| 755 | Crystallography | 41 | 243 | 420 | 625 |
| 756 | Building Materials | 7 | 242 | 1372 | 1346 |
| 756 | Freeze-Drying | 42 | 242 | 30 | 149 |
| 756 | Hypothermia | 42 | 242 | 30 | 149 |
| 756 | Freeze Drying | 42 | 242 | 30 | 149 |
| 760 | radioactive waste | 9 | 240 | 396 | 718 |
| 760 | industrial waste | 9 | 240 | 429 | 719 |
| 762 | Globalization | 11 | 239 | 195 | 216 |
| 762 | Sites | 9 | 239 | 306 | 418 |
| 764 | Microbial Genetics | 5 | 238 | 277 | 216 |
| 764 | Medicinal plants | 8 | 238 | 965 | 1046 |
| 764 | phytopathogenic bacteria | 5 | 238 | 202 | 207 |
| 764 | cross-cultural comparison | 14 | 238 | 142 | 148 |
| 764 | Cell communication | 15 | 238 | 236 | 499 |
| 769 | Pesticides | 12 | 237 | 242 | 237 |
| 770 | Geriatric Nursing | 15 | 236 | 96 | 67 |
| 771 | Public Health Informatics | 3 | 234 | 107 | 6 |
| 772 | Automation | 19 | 233 | 784 | 1154 |
| 772 | Synaptic Transmission | 9 | 233 | 269 | 317 |
| 772 | children | 6 | 233 | 381 | 320 |
| 775 | drug abuse | 18 | 232 | 212 | 308 |
| 776 | Functional Analysis | 16 | 231 | 643 | 664 |
| 777 | Otolaryngology | 9 | 230 | 358 | 325 |
| 778 | Global Health | 18 | 229 | 322 | 374 |
| 778 | Surface-Active Agents | 7 | 229 | 748 | 796 |
| 778 | Discrete geometry | 2 | 229 | 376 | 73 |
| 778 | Surface properties | 7 | 229 | 819 | 897 |
| 782 | Tribology | 12 | 227 | 660 | 641 |
| 783 | Adolescent Medicine | 4 | 226 | 610 | 704 |
| 783 | Plant Morphology | 7 | 226 | 373 | 238 |
| 785 | environmental issues | 9 | 225 | 179 | 226 |
| 786 | Wetland conservation | 15 | 224 | 74 | 141 |
| 786 | Wetlands | 15 | 224 | 74 | 141 |
| 788 | Neurons | 5 | 223 | 618 | 1119 |
| 788 | Population | 33 | 223 | 195 | 549 |
| 790 | Economic Geography | 3 | 222 | 399 | 146 |
| 790 | Immunopathology | 14 | 222 | 745 | 1079 |
| 792 | Neurotoxicology | 10 | 221 | 228 | 363 |
| 792 | Geodesy | 8 | 221 | 433 | 336 |
| 792 | Relationships | 4 | 221 | 132 | 94 |
| 795 | Climate | 3 | 220 | 730 | 380 |
| 795 | child abuse | 12 | 220 | 389 | 577 |
| 797 | Neurosurgery | 8 | 219 | 891 | 853 |
| 798 | soil pollution | 12 | 217 | 138 | 207 |
| 798 | vascular diseases | 7 | 217 | 520 | 640 |
| 800 | mycoses | 10 | 216 | 436 | 829 |
| 800 | educational innovations | 17 | 216 | 124 | 219 |
| 802 | Cybernetics | 11 | 215 | 727 | 784 |
| 802 | bees | 14 | 215 | 127 | 207 |
| 804 | Fermentation | 12 | 214 | 106 | 109 |
| 804 | Anxiety Disorders | 5 | 214 | 425 | 532 |
| 804 | Anxiety | 5 | 214 | 426 | 531 |
| 807 | Multimedia Systems | 18 | 211 | 588 | 660 |
| 807 | international cooperation | 8 | 211 | 325 | 330 |
| 809 | Humanities | 25 | 209 | 449 | 390 |
| 810 | Advertising | 10 | 207 | 145 | 245 |
| 810 | sustainability | 5 | 207 | 661 | 657 |
| 810 | Communication | 37 | 207 | 513 | 1029 |
| 813 | Middle East | 6 | 206 | 777 | 288 |
| 814 | Computer Engineering | 24 | 205 | 66 | 218 |
| 814 | Histochemistry | 13 | 205 | 548 | 696 |
| 814 | industrial hygiene | 11 | 205 | 549 | 406 |
| 814 | Chemical analysis | 14 | 205 | 537 | 820 |
| 818 | Agricultural Biotechnology | 33 | 204 | 16 | 19 |
| 818 | Social welfare | 7 | 204 | 363 | 236 |
| 818 | Strategic planning | 6 | 204 | 544 | 428 |
| 818 | Roads | 34 | 204 | 204 | 362 |
| 818 | Immune system | 19 | 204 | 398 | 1280 |
| 823 | Stem cells | 10 | 203 | 1124 | 1391 |
| 824 | Indigenous Peoples | 17 | 202 | 17 | 14 |
| 824 | Radioisotopes | 25 | 202 | 334 | 564 |
| 826 | Learning disabilities | 12 | 201 | 388 | 446 |
| 827 | Public opinion | 3 | 200 | 479 | 247 |
| 827 | Respiratory system | 10 | 200 | 292 | 418 |
| 829 | mutation | 7 | 199 | 420 | 577 |
| 829 | Family | 18 | 199 | 338 | 515 |
| 831 | air | 1 | 198 | 379 | 182 |
| 831 | drug control | 9 | 198 | 187 | 217 |
| 833 | Seismology | 14 | 197 | 262 | 344 |
| 834 | Biogeochemical cycles | 6 | 196 | 348 | 556 |
| 834 | recreation | 19 | 196 | 207 | 262 |
| 836 | families | 15 | 195 | 323 | 388 |
| 837 | Political Science | 30 | 194 | 585 | 843 |
| 838 | Organometallic chemistry | 14 | 193 | 1029 | 1081 |
| 838 | Sonochemistry | 7 | 193 | 322 | 553 |
| 840 | peptides | 12 | 192 | 377 | 401 |
| 840 | Petroleum | 15 | 192 | 104 | 92 |
| 842 | Neurolinguistics | 5 | 190 | 366 | 369 |
| 842 | chronic disease | 7 | 190 | 214 | 225 |
| 844 | Biometrics | 9 | 189 | 728 | 733 |
| 845 | Patient education | 6 | 187 | 464 | 489 |
| 845 | molecular design | 11 | 187 | 96 | 186 |
| 847 | Economic Development | 12 | 186 | 923 | 1343 |
| 847 | Water Microbiology | 6 | 186 | 250 | 254 |
| 849 | Rock Mechanics | 12 | 185 | 508 | 665 |
| 849 | administrative agencies | 16 | 185 | 78 | 131 |
| 851 | Risk Management | 8 | 184 | 407 | 414 |
| 851 | behavior modification | 2 | 184 | 505 | 377 |
| 851 | Multiple sclerosis | 17 | 184 | 173 | 210 |
| 854 | Raman spectroscopy | 10 | 183 | 406 | 507 |
| 854 | Health Risk Assessment | 13 | 183 | 84 | 139 |
| 854 | harm reduction | 11 | 183 | 66 | 87 |
| 857 | actuators | 20 | 182 | 918 | 1924 |
| 857 | transducers | 20 | 182 | 918 | 1924 |
| 859 | Land use | 15 | 181 | 412 | 843 |
| 859 | Telecommunication | 25 | 181 | 763 | 1149 |
| 859 | internet | 15 | 181 | 444 | 631 |
| 862 | Regionalism | 5 | 180 | 152 | 81 |
| 862 | X-ray crystallography | 28 | 180 | 122 | 305 |
| 862 | Human Resources | 5 | 180 | 324 | 348 |
| 862 | organization | 3 | 180 | 876 | 667 |
| 866 | Systems Analysis | 21 | 179 | 291 | 587 |
| 867 | Socialization | 9 | 178 | 260 | 398 |
| 867 | role | 9 | 178 | 209 | 337 |
| 869 | Prisons | 10 | 177 | 115 | 88 |
| 870 | International Relations | 10 | 176 | 717 | 487 |
| 870 | Money | 8 | 176 | 116 | 227 |
| 872 | Continuing Education | 10 | 175 | 167 | 113 |
| 872 | Atherosclerosis | 1 | 175 | 404 | 95 |
| 874 | Antarctica | 13 | 174 | 223 | 234 |
| 875 | Hemophilia | 10 | 173 | 274 | 315 |
| 875 | cell adhesion molecules | 5 | 173 | 409 | 389 |
| 875 | peace | 5 | 173 | 390 | 338 |
| 878 | environmental indicators | 11 | 171 | 537 | 1019 |
| 879 | Econometrics | 15 | 170 | 642 | 847 |
| 879 | Regional Economics | 5 | 170 | 362 | 255 |
| 879 | Evidence-Based Medicine | 13 | 170 | 532 | 720 |
| 879 | Solutions | 15 | 170 | 91 | 150 |
| 879 | Library Science | 20 | 170 | 370 | 315 |
| 884 | Psychosomatic Medicine | 14 | 169 | 365 | 763 |
| 885 | Pediatric Rheumatology | 8 | 168 | 129 | 103 |
| 885 | Solar Energy | 10 | 168 | 1056 | 1575 |
| 887 | Organic Geochemistry | 3 | 167 | 462 | 382 |
| 888 | Information Theory | 10 | 166 | 740 | 776 |
| 889 | Neonatology | 7 | 165 | 414 | 399 |
| 890 | Veterinary Epidemiology | 2 | 164 | 81 | 35 |
| 891 | vibration | 12 | 163 | 669 | 845 |
| 892 | environmental remediation | 19 | 162 | 16 | 167 |
| 892 | Combinatorial analysis | 13 | 162 | 584 | 449 |
| 892 | Cell metabolism | 11 | 162 | 290 | 1095 |
| 895 | Geriatric Pharmacology | 4 | 161 | 297 | 204 |
| 895 | Organizational Behavior | 6 | 161 | 426 | 545 |
| 895 | mutagens | 6 | 161 | 672 | 926 |
| 898 | Multilingualism | 3 | 159 | 301 | 123 |
| 898 | Flood forecasting | 4 | 159 | 66 | 28 |
| 898 | Flood control | 4 | 159 | 217 | 69 |
| 898 | Osteoporosis | 6 | 159 | 209 | 196 |
| 898 | cultural pluralism | 3 | 159 | 420 | 152 |
| 903 | Reproductive health | 9 | 158 | 441 | 524 |
| 904 | School Psychology | 3 | 157 | 497 | 327 |
| 905 | Philosophy | 47 | 156 | 435 | 560 |
| 905 | plant viruses | 7 | 156 | 116 | 107 |
| 905 | school psychologists | 1 | 156 | 376 | 172 |
| 908 | Engineering Mathematics | 21 | 155 | 1042 | 1396 |
| 908 | geological modeling | 8 | 155 | 280 | 288 |
| 908 | data protection | 1 | 155 | 1254 | 228 |
| 911 | Stochastic Processes | 9 | 154 | 551 | 480 |
| 911 | disabilities | 12 | 154 | 314 | 514 |
| 911 | Algae | 7 | 154 | 575 | 655 |
| 914 | Rural Development | 8 | 153 | 302 | 330 |
| 914 | human development | 1 | 153 | 1417 | 611 |
| 914 | Cytokine | 10 | 153 | 143 | 433 |
| 917 | Cosmology | 21 | 152 | 616 | 874 |
| 917 | Latin America | 17 | 152 | 685 | 481 |
| 917 | Allergies | 10 | 152 | 32 | 81 |
| 920 | Microprocessors | 12 | 151 | 191 | 211 |
| 921 | Child welfare | 13 | 150 | 469 | 687 |
| 921 | warfare | 3 | 150 | 319 | 251 |
| 923 | Pharmacogenetics | 9 | 149 | 695 | 1052 |
| 923 | Geochemical Modeling | 7 | 149 | 186 | 237 |
| 923 | Neuroanatomy | 2 | 149 | 370 | 144 |
| 926 | Immunopharmacology | 6 | 148 | 822 | 827 |
| 926 | Energy Consumption | 8 | 148 | 64 | 96 |
| 926 | Eating Disorders | 9 | 148 | 538 | 717 |
| 929 | synthesis | 13 | 146 | 451 | 502 |
| 930 | Telemedicine | 7 | 145 | 184 | 252 |
| 930 | Interferons | 9 | 145 | 100 | 201 |
| 930 | international trade | 6 | 145 | 504 | 435 |
| 930 | DNA repair | 8 | 145 | 154 | 272 |
| 934 | Nuclear Engineering | 25 | 144 | 465 | 638 |
| 935 | Glaciology | 2 | 143 | 298 | 169 |
| 935 | technical education | 2 | 143 | 723 | 244 |
| 935 | glaciers | 2 | 143 | 272 | 162 |
| 938 | Radiation Oncology | 2 | 141 | 577 | 288 |
| 938 | Internet of Things | 9 | 141 | 355 | 356 |
| 940 | Molecules | 11 | 140 | 1007 | 1125 |
| 941 | Ergonomics | 27 | 139 | 301 | 693 |
| 941 | Phytochemistry | 16 | 139 | 18 | 164 |
| 941 | Enzyme inhibitors | 11 | 139 | 120 | 231 |
| 941 | Phytoremediation | 16 | 139 | 18 | 164 |
| 941 | Bioreactors | 16 | 139 | 18 | 164 |
| 941 | Suicide | 4 | 139 | 522 | 392 |
| 947 | Apoptosis | 4 | 138 | 211 | 197 |
| 947 | neurotoxins | 4 | 138 | 211 | 197 |
| 947 | Neurotoxic agents | 4 | 138 | 211 | 197 |
| 947 | energy development | 6 | 138 | 597 | 797 |
| 947 | Nerve regeneration | 4 | 138 | 211 | 197 |
| 952 | Adolescent Psychology | 7 | 137 | 585 | 692 |
| 953 | Combustion | 14 | 136 | 648 | 1049 |
| 953 | bioclimatology | 5 | 136 | 831 | 679 |
| 953 | radiative transfer | 9 | 136 | 384 | 439 |
| 956 | Database Management | 5 | 135 | 728 | 693 |
| 956 | Biodegradation | 4 | 135 | 726 | 716 |
| 956 | Pharmacy management | 17 | 135 | 80 | 139 |
| 959 | Surgery | 11 | 134 | 1478 | 2417 |
| 959 | Ceramics | 8 | 134 | 1220 | 1180 |
| 959 | locomotion | 11 | 134 | 341 | 563 |
| 959 | posture | 11 | 134 | 341 | 563 |
| 959 | Seaweed | 6 | 134 | 468 | 578 |
| 959 | Post-traumatic stress disorder | 7 | 134 | 514 | 688 |
| 959 | Aggression | 9 | 134 | 223 | 436 |
| 959 | wetland management | 2 | 134 | 262 | 113 |
| 959 | gait | 11 | 134 | 341 | 563 |
| 959 | Toxins | 5 | 134 | 819 | 727 |
| 959 | walking | 11 | 134 | 341 | 563 |
| 970 | Neurogenetics | 4 | 133 | 263 | 235 |
| 970 | Forensic Psychology | 13 | 133 | 132 | 239 |
| 970 | Neuropharmacology | 3 | 133 | 691 | 529 |
| 970 | Muscle contraction | 11 | 133 | 67 | 40 |
| 974 | System design | 5 | 132 | 203 | 161 |
| 974 | Urban Areas | 11 | 132 | 52 | 110 |
| 974 | migration policy | 7 | 132 | 104 | 165 |
| 974 | civil service | 3 | 132 | 419 | 264 |
| 978 | nursing education | 7 | 131 | 49 | 29 |
| 978 | Ocean Engineering | 7 | 131 | 1301 | 1423 |
| 980 | Environmental Ethics | 4 | 130 | 118 | 52 |
| 980 | Ethnoarchaeology | 3 | 130 | 192 | 135 |
| 980 | Egypt | 5 | 130 | 299 | 302 |
| 983 | Emerging infectious diseases | 6 | 129 | 214 | 277 |
| 983 | Identity | 2 | 129 | 177 | 93 |
| 983 | Self | 2 | 129 | 241 | 113 |
| 983 | Fouling | 3 | 129 | 258 | 229 |
| 987 | Game Theory | 4 | 128 | 578 | 368 |
| 988 | History of Medicine | 39 | 127 | 64 | 114 |
| 988 | Corporate governance | 5 | 127 | 448 | 460 |
| 990 | Adaptive control systems | 2 | 126 | 866 | 310 |
| 990 | Ultrasonic Imaging | 4 | 126 | 512 | 413 |
| 990 | deviant behavior | 2 | 126 | 409 | 150 |
| 990 | Ultrasound | 4 | 126 | 565 | 482 |
| 994 | History | 474 | 124 | 9 | 242 |
| 994 | Intellectual Property | 12 | 124 | 33 | 19 |
| 996 | Synapses | 3 | 123 | 321 | 310 |
| 997 | Long-Term Care | 7 | 122 | 356 | 590 |
| 997 | rural health | 9 | 122 | 87 | 135 |
| 997 | weather | 4 | 122 | 555 | 480 |
| 1000 | Protein folding | 8 | 121 | 34 | 80 |