| 1 | Neurology | 840 | 69.5K | 31 | 43 |
| 2 | Physiology | 1,087 | 46.6K | 1 | 2 |
| 3 | Research | 439 | 24.9K | 23 | 18 |
| 4 | Alzheimer's disease | 600 | 23.3K | 4 | 11 |
| 5 | Molecular Biology | 219 | 23.1K | 401 | 286 |
| 6 | Medicine | 334 | 22.9K | 141 | 203 |
| 7 | Science | 308 | 21.0K | 243 | 864 |
| 8 | Psychiatry | 281 | 18.3K | 103 | 130 |
| 9 | Dementia | 503 | 17.3K | 5 | 15 |
| 10 | Brain | 216 | 15.6K | 24 | 20 |
| 11 | Nervous system | 148 | 15.2K | 36 | 31 |
| 12 | Endocrinology | 205 | 13.1K | 55 | 72 |
| 13 | Human genetics | 21 | 13.1K | 1031 | 351 |
| 14 | Biology | 170 | 13.1K | 957 | 1606 |
| 15 | Neurophysiology | 190 | 11.4K | 103 | 177 |
| 16 | Mental Disorders | 161 | 10.9K | 99 | 109 |
| 17 | transport vesicles | 1 | 10.0K | 457 | 106 |
| 18 | Physics | 69 | 9.5K | 2642 | 2022 |
| 19 | Biochemistry | 204 | 8.5K | 1111 | 1226 |
| 20 | Metabolism | 104 | 7.6K | 95 | 103 |
| 21 | Mental illness | 60 | 7.3K | 174 | 93 |
| 22 | Neurobiology | 108 | 7.2K | 35 | 70 |
| 23 | Neurochemistry | 154 | 7.1K | 25 | 66 |
| 24 | Chemistry | 83 | 6.3K | 2850 | 2028 |
| 25 | Pediatric Neurology | 25 | 5.9K | 188 | 72 |
| 26 | Metabolic diseases | 84 | 5.7K | 119 | 168 |
| 27 | Pharmacology | 123 | 5.6K | 410 | 333 |
| 28 | Public Health | 102 | 5.5K | 331 | 289 |
| 29 | Ecology | 8 | 5.3K | 8096 | 858 |
| 30 | Natural history | 26 | 4.8K | 1236 | 2357 |
| 31 | Psychophysiology | 72 | 4.5K | 402 | 379 |
| 32 | Aging | 82 | 4.3K | 86 | 108 |
| 33 | Cytology | 61 | 3.9K | 980 | 1671 |
| 34 | Medical genetics | 47 | 3.8K | 615 | 539 |
| 35 | Molecular Genetics | 6 | 3.7K | 1592 | 119 |
| 36 | Molecular ecology | 2 | 3.7K | 1668 | 89 |
| 37 | Population Genetics | 1 | 3.6K | 3001 | 92 |
| 38 | Toxicology | 43 | 3.4K | 881 | 345 |
| 39 | Reproduction | 72 | 3.3K | 118 | 116 |
| 40 | Developmental Disabilities | 33 | 3.1K | 81 | 42 |
| 41 | Psychopharmacology | 72 | 3.1K | 108 | 236 |
| 42 | Epidemiology | 64 | 3.0K | 373 | 345 |
| 43 | diseases | 3 | 2.8K | 91 | 51 |
| 43 | Disease | 3 | 2.8K | 108 | 50 |
| 45 | Biophysics | 61 | 2.8K | 1226 | 969 |
| 46 | Neurosurgery | 44 | 2.7K | 34 | 29 |
| 47 | Pathology | 73 | 2.6K | 164 | 264 |
| 48 | Cell Biology | 24 | 2.6K | 2615 | 2297 |
| 49 | Immunology | 41 | 2.6K | 904 | 1066 |
| 50 | rehabilitation | 110 | 2.5K | 12 | 77 |
| 51 | Cell differentiation | 13 | 2.5K | 942 | 435 |
| 52 | Substance Abuse | 37 | 2.5K | 170 | 61 |
| 53 | Hypertension | 29 | 2.4K | 220 | 184 |
| 54 | Health Policy | 49 | 2.4K | 148 | 127 |
| 55 | Behavior | 51 | 2.3K | 433 | 557 |
| 56 | Neurons | 6 | 2.3K | 760 | 499 |
| 57 | Clinical Chemistry | 40 | 2.3K | 348 | 242 |
| 58 | Cardiovascular system | 12 | 2.2K | 600 | 274 |
| 59 | Cell death | 19 | 2.0K | 223 | 199 |
| 60 | United States | 22 | 1.9K | 1576 | 388 |
| 61 | Pollution | 11 | 1.9K | 4610 | 1520 |
| 62 | human behavior | 22 | 1.8K | 602 | 591 |
| 63 | Virology | 8 | 1.8K | 3083 | 2137 |
| 64 | Pharmacogenetics | 15 | 1.7K | 102 | 40 |
| 65 | Drug design | 14 | 1.7K | 236 | 55 |
| 66 | Physical Therapy | 60 | 1.6K | 34 | 105 |
| 67 | Neuropsychology | 55 | 1.6K | 215 | 379 |
| 68 | Animal Behavior | 12 | 1.5K | 1150 | 591 |
| 69 | Geriatrics | 58 | 1.5K | 210 | 437 |
| 70 | disabilities | 66 | 1.5K | 4 | 6 |
| 71 | Clinical Laboratory Science | 45 | 1.5K | 14 | 8 |
| 72 | Environmental pollutants | 9 | 1.4K | 920 | 155 |
| 73 | Pediatrics | 17 | 1.4K | 1146 | 716 |
| 74 | Neuroimmunology | 23 | 1.4K | 54 | 91 |
| 75 | Evolution | 1 | 1.4K | 6032 | 528 |
| 76 | Psychoneuroimmunology | 22 | 1.4K | 49 | 88 |
| 77 | Genetic regulation | 10 | 1.4K | 457 | 341 |
| 78 | Genetics | 10 | 1.4K | 4113 | 2448 |
| 79 | Stem cells | 13 | 1.4K | 513 | 184 |
| 80 | Sports Medicine | 57 | 1.3K | 120 | 319 |
| 81 | Ethology | 4 | 1.3K | 1908 | 568 |
| 82 | Child psychology | 24 | 1.3K | 363 | 374 |
| 83 | Speech Disorders | 67 | 1.3K | 14 | 40 |
| 84 | environmental pollution | 7 | 1.3K | 4543 | 1115 |
| 85 | Brain damage | 19 | 1.3K | 10 | 2 |
| 86 | pollutants | 6 | 1.2K | 1013 | 158 |
| 87 | Diabetes | 28 | 1.2K | 473 | 762 |
| 88 | Environment | 17 | 1.2K | 2726 | 2823 |
| 89 | Obesity | 37 | 1.2K | 251 | 476 |
| 90 | Environmental Chemistry | 5 | 1.2K | 1780 | 644 |
| 91 | Respiration | 21 | 1.2K | 293 | 212 |
| 92 | Child | 27 | 1.2K | 478 | 349 |
| 93 | Nutrition | 31 | 1.2K | 1048 | 1250 |
| 94 | Inflammation | 26 | 1.2K | 22 | 64 |
| 95 | Language Disorders | 62 | 1.2K | 12 | 29 |
| 96 | Occupational Therapy | 52 | 1.2K | 48 | 49 |
| 97 | Hormones | 38 | 1.2K | 45 | 133 |
| 98 | Diabetes mellitus | 24 | 1.2K | 472 | 767 |
| 99 | Biomedical Engineering | 27 | 1.2K | 1686 | 1726 |
| 100 | Urology | 15 | 1.1K | 818 | 458 |
| 101 | drug development | 7 | 1.1K | 499 | 365 |
| 102 | Genetic engineering | 7 | 1.1K | 1511 | 351 |
| 102 | cloning | 7 | 1.1K | 194 | 84 |
| 104 | Immunity | 7 | 1.1K | 2058 | 1616 |
| 105 | Child Development | 24 | 1.1K | 416 | 426 |
| 106 | Cancer | 23 | 1.1K | 1851 | 2346 |
| 107 | Cytogenetics | 9 | 1.1K | 976 | 759 |
| 108 | Pharmaceutical Chemistry | 11 | 1.0K | 3161 | 1434 |
| 109 | Synaptic Transmission | 40 | 1.0K | 10 | 33 |
| 110 | alcoholism | 31 | 1.0K | 236 | 287 |
| 111 | ethanol | 28 | 1.0K | 19 | 18 |
| 112 | Sleep Disorders | 25 | 969 | 264 | 317 |
| 112 | Sleep | 25 | 969 | 263 | 330 |
| 114 | Environmental Health | 14 | 943 | 3204 | 2386 |
| 115 | Diagnostic Imaging | 26 | 871 | 342 | 480 |
| 116 | Microbiology | 19 | 868 | 5260 | 5860 |
| 117 | proteins | 18 | 861 | 626 | 575 |
| 118 | Psychology | 46 | 843 | 795 | 1733 |
| 119 | Proteome | 16 | 837 | 239 | 294 |
| 120 | Autism | 18 | 826 | 76 | 122 |
| 121 | Sports | 24 | 820 | 234 | 331 |
| 122 | Obstetrics | 16 | 819 | 1064 | 742 |
| 123 | Medical innovations | 6 | 812 | 630 | 591 |
| 124 | Astrocytes | 11 | 806 | 76 | 114 |
| 125 | Orthopedics | 40 | 801 | 150 | 271 |
| 126 | Primary health care | 29 | 744 | 154 | 202 |
| 127 | Environmental Engineering | 4 | 730 | 5245 | 1684 |
| 128 | speech therapy | 34 | 720 | 10 | 18 |
| 129 | Alternative Medicine | 17 | 714 | 112 | 91 |
| 129 | complementary therapies | 17 | 714 | 112 | 87 |
| 129 | pain | 19 | 714 | 319 | 494 |
| 132 | Immune system | 3 | 712 | 1584 | 1067 |
| 133 | epilepsy | 38 | 708 | 60 | 150 |
| 134 | Immunotherapy | 1 | 676 | 8229 | 1164 |
| 135 | Bipolar Disorder | 22 | 665 | 54 | 119 |
| 136 | Therapeutics | 16 | 646 | 459 | 704 |
| 137 | sanitation | 3 | 639 | 2207 | 1114 |
| 138 | Embryology | 15 | 614 | 792 | 1354 |
| 139 | Genomics | 18 | 609 | 1159 | 1630 |
| 140 | Europe | 29 | 592 | 370 | 638 |
| 141 | Cerebrospinal fluid | 26 | 586 | 1 | 10 |
| 142 | Nuclear Medicine | 19 | 560 | 288 | 399 |
| 143 | Histology | 8 | 559 | 1504 | 1012 |
| 144 | Geriatric Psychiatry | 18 | 556 | 142 | 187 |
| 145 | Nursing | 13 | 548 | 536 | 266 |
| 146 | Cognitive neuroscience | 10 | 546 | 444 | 581 |
| 147 | Communication Disorders | 24 | 542 | 7 | 16 |
| 148 | psychotherapy | 23 | 523 | 242 | 548 |
| 149 | Biocompatible Materials | 3 | 518 | 10573 | 4746 |
| 149 | drug therapy | 19 | 518 | 665 | 1047 |
| 151 | Audiology | 26 | 515 | 112 | 239 |
| 152 | Intellectual disability | 9 | 510 | 214 | 96 |
| 153 | Quality of life | 15 | 507 | 195 | 355 |
| 154 | Ophthalmology | 18 | 485 | 733 | 969 |
| 155 | Lipids | 11 | 482 | 377 | 614 |
| 156 | Attention | 15 | 466 | 612 | 884 |
| 157 | free radicals | 7 | 460 | 846 | 987 |
| 158 | Hemodynamics | 8 | 452 | 285 | 336 |
| 158 | Perception | 13 | 452 | 955 | 1120 |
| 160 | Engineering | 5 | 431 | 5212 | 1483 |
| 161 | Medical Physics | 4 | 423 | 2224 | 1007 |
| 162 | Electronics | 3 | 406 | 6046 | 2045 |
| 163 | Molecular Imaging | 12 | 397 | 274 | 441 |
| 164 | Neuropsychiatry | 12 | 395 | 283 | 390 |
| 165 | Diet | 8 | 393 | 1411 | 1751 |
| 165 | arthritis | 10 | 393 | 351 | 473 |
| 167 | Systems Biology | 8 | 391 | 718 | 494 |
| 168 | Gerontology | 20 | 386 | 317 | 740 |
| 169 | Host-parasite interactions | 3 | 384 | 1824 | 1474 |
| 170 | brain mapping | 8 | 380 | 416 | 538 |
| 171 | Computational Biology | 6 | 378 | 2945 | 2266 |
| 172 | Hearing | 20 | 375 | 72 | 98 |
| 173 | behavioral medicine | 9 | 366 | 639 | 874 |
| 174 | Memory | 14 | 351 | 887 | 1552 |
| 175 | drugs | 6 | 347 | 1618 | 971 |
| 176 | Developmental Psychology | 5 | 337 | 703 | 542 |
| 176 | human development | 5 | 337 | 438 | 319 |
| 178 | Cognition | 5 | 332 | 1672 | 1111 |
| 179 | Thrombosis | 14 | 331 | 180 | 592 |
| 180 | Cardiovascular diseases | 15 | 329 | 233 | 501 |
| 181 | Mental Health | 18 | 323 | 327 | 572 |
| 182 | Cerebral cortex | 10 | 322 | 476 | 868 |
| 183 | Microcirculation | 5 | 316 | 207 | 139 |
| 183 | Blood vessels | 5 | 316 | 127 | 83 |
| 185 | Chemotherapy | 7 | 315 | 535 | 503 |
| 186 | Clinical Biochemistry | 7 | 313 | 604 | 571 |
| 187 | Forensic Psychiatry | 12 | 311 | 141 | 123 |
| 187 | locomotion | 7 | 311 | 196 | 202 |
| 187 | posture | 7 | 311 | 196 | 202 |
| 187 | gait | 7 | 311 | 196 | 202 |
| 187 | walking | 7 | 311 | 196 | 202 |
| 192 | preventive medicine | 3 | 310 | 1291 | 742 |
| 193 | drug evaluation | 2 | 300 | 1846 | 377 |
| 194 | Muscles | 5 | 296 | 541 | 468 |
| 195 | toxicity testing | 2 | 294 | 742 | 129 |
| 196 | Neuromuscular diseases | 4 | 292 | 495 | 296 |
| 197 | Radiobiology | 9 | 291 | 915 | 1269 |
| 198 | Clinical Pharmacology | 21 | 290 | 212 | 684 |
| 199 | disease outbreaks | 9 | 289 | 158 | 306 |
| 199 | Epidemics | 9 | 289 | 157 | 306 |
| 201 | Bioinformatics | 4 | 287 | 3154 | 2156 |
| 202 | Superconductors | 8 | 285 | 296 | 175 |
| 203 | Community Psychiatry | 5 | 284 | 652 | 545 |
| 204 | Surgery | 8 | 281 | 1030 | 2294 |
| 205 | Health | 18 | 274 | 489 | 1374 |
| 205 | Gene expression regulation | 3 | 274 | 1431 | 1078 |
| 207 | Visual Perception | 11 | 273 | 950 | 1704 |
| 207 | older people | 8 | 273 | 555 | 483 |
| 209 | Neurotoxicology | 3 | 271 | 507 | 258 |
| 210 | Environmental Toxicology | 5 | 269 | 2215 | 2148 |
| 210 | sports injuries | 17 | 269 | 39 | 62 |
| 212 | Developmental Genetics | 2 | 266 | 1156 | 1006 |
| 212 | viral genetics | 2 | 266 | 633 | 761 |
| 214 | Medical Microbiology | 8 | 263 | 1599 | 2738 |
| 215 | Proteomics | 10 | 260 | 269 | 859 |
| 216 | Health Education | 5 | 255 | 1463 | 954 |
| 217 | Superconductivity | 6 | 254 | 114 | 78 |
| 218 | Mass Spectrometry | 4 | 249 | 1013 | 649 |
| 219 | Linguistics | 10 | 247 | 288 | 431 |
| 219 | Applied Linguistics | 10 | 247 | 36 | 66 |
| 219 | Phonetics | 10 | 247 | 57 | 92 |
| 222 | fertility | 8 | 246 | 546 | 948 |
| 223 | Psychiatric Epidemiology | 4 | 241 | 387 | 371 |
| 224 | risk factors | 8 | 240 | 103 | 210 |
| 225 | Happiness | 6 | 239 | 78 | 128 |
| 226 | Sexual health | 5 | 233 | 414 | 357 |
| 226 | Digestive system diseases | 5 | 233 | 441 | 308 |
| 228 | Steroids | 10 | 232 | 304 | 605 |
| 229 | Infertility | 5 | 221 | 755 | 995 |
| 230 | Schizophrenia | 5 | 220 | 998 | 1151 |
| 230 | Eating Disorders | 12 | 220 | 345 | 623 |
| 230 | Feeding and Eating Disorders | 12 | 220 | 324 | 600 |
| 233 | Qualitative Research | 11 | 216 | 26 | 88 |
| 234 | Occupational Health | 11 | 215 | 229 | 412 |
| 234 | Critical Care | 6 | 215 | 1019 | 2292 |
| 234 | Critical Care Medicine | 6 | 215 | 1023 | 2303 |
| 237 | Health Services Research | 16 | 212 | 390 | 1052 |
| 238 | mycoses | 1 | 205 | 1767 | 1210 |
| 238 | Bacterial infections | 1 | 205 | 1970 | 1246 |
| 240 | voice | 16 | 200 | 79 | 193 |
| 241 | Adolescent Medicine | 3 | 198 | 602 | 889 |
| 242 | Chromosome mapping | 4 | 195 | 2398 | 2597 |
| 242 | gene mapping | 4 | 195 | 2870 | 3299 |
| 244 | Virulence | 3 | 194 | 1690 | 2211 |
| 244 | Exercise | 17 | 194 | 183 | 571 |
| 246 | Social Psychology | 4 | 192 | 1700 | 1411 |
| 247 | drug toxicity | 3 | 186 | 299 | 193 |
| 248 | Synapses | 6 | 185 | 117 | 242 |
| 249 | Social Sciences | 2 | 184 | 5093 | 1560 |
| 250 | Voice Disorders | 14 | 183 | 6 | 12 |
| 250 | Parkinson's disease | 5 | 183 | 101 | 130 |
| 252 | Cognitive Science | 5 | 181 | 1086 | 1670 |
| 253 | psychophysics | 2 | 179 | 393 | 111 |
| 254 | Speech-Language Pathology | 10 | 178 | 21 | 41 |
| 254 | Women's health | 6 | 178 | 788 | 840 |
| 256 | Developmental Biology | 6 | 175 | 2733 | 5292 |
| 257 | Radiation | 4 | 173 | 1560 | 944 |
| 257 | Parenteral nutrition | 7 | 173 | 519 | 1027 |
| 259 | vascular diseases | 5 | 170 | 444 | 1000 |
| 260 | Elderly | 3 | 167 | 761 | 240 |
| 261 | Geriatric Pharmacology | 1 | 166 | 519 | 130 |
| 261 | Computer Vision | 1 | 166 | 2585 | 1163 |
| 261 | Image Processing | 1 | 166 | 5711 | 2348 |
| 261 | genome | 3 | 166 | 2745 | 3678 |
| 265 | Nuclear Physics | 7 | 163 | 3049 | 3307 |
| 266 | prostaglandins | 10 | 162 | 85 | 307 |
| 267 | Hemostasis | 9 | 161 | 144 | 319 |
| 268 | Social behavior | 3 | 160 | 1403 | 1293 |
| 269 | Neuropharmacology | 6 | 158 | 284 | 581 |
| 270 | Comparative Physiology | 3 | 155 | 857 | 712 |
| 271 | occupational diseases | 6 | 153 | 391 | 742 |
| 271 | Enteral nutrition | 5 | 153 | 497 | 910 |
| 273 | Data Mining | 2 | 152 | 2125 | 1296 |
| 274 | pain management | 5 | 148 | 279 | 390 |
| 275 | Adolescent | 6 | 146 | 1761 | 2191 |
| 276 | Environmental monitoring | 4 | 144 | 5487 | 6807 |
| 277 | Multiple sclerosis | 13 | 143 | 117 | 227 |
| 278 | Analytical Chemistry | 6 | 142 | 6236 | 8212 |
| 278 | nucleic acids | 3 | 142 | 3564 | 4303 |
| 280 | sex differences | 2 | 140 | 116 | 103 |
| 281 | medical education | 11 | 137 | 617 | 1662 |
| 282 | Spine | 4 | 135 | 561 | 746 |
| 282 | biomedicine | 1 | 135 | 1393 | 499 |
| 284 | Emergency Medical Services | 5 | 129 | 162 | 210 |
| 284 | Emergency Medicine | 5 | 129 | 677 | 784 |
| 284 | Spectrum analysis | 2 | 129 | 8743 | 5393 |
| 287 | Work | 4 | 127 | 84 | 155 |
| 288 | environmental protection | 2 | 121 | 7772 | 5979 |
| 289 | Echocardiography | 3 | 120 | 21 | 19 |
| 290 | embryonic development | 5 | 119 | 196 | 414 |
| 291 | psychopathology | 1 | 118 | 596 | 346 |
| 292 | Industrial Safety | 7 | 115 | 346 | 837 |
| 292 | industrial hygiene | 7 | 115 | 273 | 367 |
| 294 | Neurovirology | 3 | 114 | 239 | 278 |
| 294 | United Kingdom | 6 | 114 | 1235 | 3125 |
| 296 | Neurotransmitters | 2 | 113 | 745 | 579 |
| 297 | Evidence-Based Medicine | 3 | 112 | 358 | 472 |
| 297 | Sound | 4 | 112 | 781 | 741 |
| 299 | Amyotrophic Lateral Sclerosis | 2 | 111 | 268 | 211 |
| 299 | Frontotemporal lobar degeneration | 2 | 111 | 203 | 146 |
| 301 | Computer Science | 2 | 110 | 3034 | 1312 |
| 301 | Speech | 8 | 110 | 278 | 886 |
| 303 | Food | 3 | 109 | 5455 | 6028 |
| 303 | Kidney diseases | 6 | 109 | 566 | 1168 |
| 305 | Histochemistry | 1 | 108 | 4142 | 1570 |
| 305 | Behavioral research | 6 | 108 | 135 | 201 |
| 307 | Biological Systems | 1 | 107 | 1170 | 450 |
| 308 | Pharmacognosy | 3 | 106 | 2677 | 3271 |
| 308 | Medicinal plants | 3 | 106 | 1817 | 2375 |
| 308 | sexual behavior | 5 | 106 | 424 | 910 |
| 308 | Nitric oxide | 4 | 106 | 95 | 271 |
| 312 | Patient education | 1 | 105 | 1488 | 717 |
| 312 | counseling | 1 | 105 | 3102 | 1340 |
| 314 | Randomized Controlled Trials | 10 | 103 | 277 | 738 |
| 315 | Analytical Biochemistry | 1 | 102 | 5713 | 2563 |
| 316 | Oncogenes | 1 | 101 | 5386 | 5279 |
| 317 | physical therapy techniques | 3 | 99 | 91 | 66 |
| 317 | Oxidation-reduction | 3 | 99 | 1005 | 2641 |
| 319 | Radiology | 4 | 98 | 1035 | 1025 |
| 320 | Antioxidants | 2 | 95 | 1190 | 2063 |
| 320 | Mental Health Services | 6 | 95 | 771 | 1454 |
| 322 | Oncology | 3 | 94 | 5158 | 8046 |
| 322 | Membranes | 3 | 94 | 3128 | 4170 |
| 324 | Environmental Policy | 1 | 91 | 10441 | 7504 |
| 324 | Environmental Law | 1 | 91 | 2667 | 2437 |
| 326 | Electrophoresis | 3 | 89 | 2318 | 2539 |
| 326 | Chromatography | 3 | 89 | 2198 | 2049 |
| 326 | Chromatographic analysis | 3 | 89 | 2660 | 2306 |
| 329 | Psycholinguistics | 4 | 87 | 824 | 1330 |
| 329 | enzymes | 3 | 87 | 2358 | 3063 |
| 331 | viruses | 2 | 85 | 3054 | 3954 |
| 331 | amino acids | 3 | 85 | 431 | 754 |
| 333 | Cognitive Therapy | 3 | 84 | 507 | 596 |
| 334 | calcification | 1 | 83 | 1456 | 924 |
| 335 | Dyslexia | 2 | 82 | 103 | 113 |
| 336 | Geriatric Medicine | 2 | 81 | 123 | 142 |
| 337 | Medical Oncology | 2 | 80 | 5185 | 5864 |
| 337 | Anxiety Disorders | 2 | 80 | 730 | 1098 |
| 337 | Anxiety | 2 | 80 | 718 | 1073 |
| 340 | Reproductive toxicology | 2 | 79 | 570 | 684 |
| 341 | Homeostasis | 3 | 78 | 487 | 3089 |
| 341 | Cell metabolism | 3 | 78 | 717 | 3329 |
| 343 | data collection | 2 | 76 | 1102 | 1625 |
| 344 | Neonatology | 2 | 75 | 824 | 780 |
| 344 | Food additives | 2 | 75 | 1590 | 1873 |
| 346 | Geriatric Nursing | 3 | 74 | 335 | 234 |
| 346 | Cross-Cultural Studies | 1 | 74 | 1069 | 426 |
| 346 | Asia | 1 | 74 | 6924 | 2077 |
| 346 | cross-cultural comparison | 1 | 74 | 977 | 389 |
| 350 | Australia | 2 | 73 | 3116 | 2284 |
| 351 | Organic Chemistry | 2 | 72 | 6729 | 6372 |
| 351 | Teratology | 2 | 72 | 462 | 552 |
| 351 | Bioorganic chemistry | 2 | 72 | 6279 | 6469 |
| 351 | abnormalities | 2 | 72 | 216 | 290 |
| 355 | scientific societies | 6 | 69 | 395 | 1314 |
| 356 | visualization | 9 | 68 | 683 | 1322 |
| 357 | Global Health | 1 | 67 | 2660 | 1157 |
| 357 | Oxidative stress | 2 | 67 | 1348 | 3056 |
| 357 | health services accessibility | 1 | 67 | 2419 | 1334 |
| 360 | Anatomy | 7 | 66 | 2002 | 6583 |
| 361 | Biopharmaceutics | 1 | 65 | 2865 | 2407 |
| 361 | Adolescent Psychology | 6 | 65 | 431 | 1289 |
| 361 | Hemophilia | 4 | 65 | 245 | 376 |
| 364 | Biotechnology | 3 | 64 | 16753 | 24823 |
| 365 | vitamin C | 1 | 63 | 863 | 800 |
| 365 | vitamin E | 1 | 63 | 863 | 800 |
| 367 | Microscopy | 2 | 60 | 2342 | 2457 |
| 368 | Neurolinguistics | 2 | 59 | 478 | 793 |
| 368 | Learning | 4 | 59 | 1309 | 2680 |
| 368 | language | 2 | 59 | 831 | 1278 |
| 371 | Neuroplasticity | 1 | 58 | 439 | 416 |
| 371 | neuronal plasticity | 1 | 58 | 139 | 258 |
| 373 | Research Design | 2 | 56 | 1799 | 2197 |
| 373 | personality | 1 | 56 | 2294 | 2140 |
| 373 | feeding behavior | 3 | 56 | 778 | 1563 |
| 376 | Adipose tissue | 3 | 55 | 13 | 80 |
| 376 | Appetite | 2 | 55 | 885 | 1398 |
| 378 | Psychiatric Nursing | 6 | 54 | 337 | 807 |
| 379 | Law | 1 | 53 | 2109 | 831 |
| 379 | environmental exposure | 4 | 53 | 1651 | 4863 |
| 379 | cell physiology | 1 | 53 | 7148 | 7915 |
| 379 | Jurisprudence | 1 | 53 | 2110 | 1190 |
| 383 | Orthopedic Surgery | 5 | 52 | 388 | 1040 |
| 384 | Lipid metabolism | 2 | 51 | 551 | 1173 |
| 384 | Lipid | 2 | 51 | 553 | 1180 |
| 386 | Criminal psychology | 3 | 50 | 669 | 922 |
| 386 | software | 3 | 50 | 628 | 1766 |
| 388 | Muscle contraction | 3 | 49 | 187 | 89 |
| 389 | Fertilization | 2 | 47 | 76 | 133 |
| 389 | Developmental Neurobiology | 5 | 47 | 194 | 1276 |
| 389 | ovary | 1 | 47 | 463 | 419 |
| 389 | Pituitary gland | 4 | 47 | 144 | 433 |
| 389 | gametes | 2 | 47 | 76 | 133 |
| 394 | Learning disabilities | 3 | 46 | 617 | 1035 |
| 394 | Heart Failure | 2 | 46 | 275 | 692 |
| 396 | Catalysis | 2 | 44 | 7878 | 10260 |
| 396 | Nanostructured Materials | 2 | 44 | 7516 | 10563 |
| 398 | Pediatric Nursing | 2 | 43 | 345 | 499 |
| 399 | Infections | 1 | 42 | 2894 | 3445 |
| 399 | Parasitic Diseases | 1 | 42 | 4459 | 4353 |
| 399 | infection | 1 | 42 | 4829 | 4725 |
| 402 | Robotics | 1 | 40 | 4451 | 3731 |
| 402 | Immunopharmacology | 1 | 40 | 4292 | 3967 |
| 404 | Hospitals | 1 | 39 | 739 | 671 |
| 405 | Clinical Immunology | 2 | 38 | 2240 | 3999 |
| 405 | Memory disorders | 1 | 38 | 443 | 390 |
| 405 | Microfluidics | 1 | 38 | 500 | 565 |
| 405 | Communication | 5 | 38 | 896 | 3556 |
| 409 | Ethnology | 1 | 36 | 1962 | 1524 |
| 409 | Electrophysiology | 3 | 36 | 522 | 1515 |
| 409 | Tropical Medicine | 1 | 36 | 4094 | 3697 |
| 412 | Exercise therapy | 2 | 34 | 307 | 488 |
| 412 | Hippocampus | 2 | 34 | 511 | 1364 |
| 414 | Radiation Oncology | 2 | 33 | 527 | 1078 |
| 414 | Infection control | 1 | 33 | 529 | 712 |
| 414 | Bacteriology | 1 | 33 | 5731 | 7247 |
| 417 | Signal Transduction | 1 | 32 | 5992 | 7871 |
| 417 | Endocrine glands | 1 | 32 | 568 | 1310 |
| 417 | biological evolution | 1 | 32 | 6947 | 9002 |
| 420 | Nephrology | 2 | 31 | 844 | 1851 |
| 420 | Mechatronics | 1 | 31 | 2011 | 2121 |
| 420 | Flexible manufacturing systems | 1 | 31 | 609 | 768 |
| 423 | Feasibility studies | 2 | 30 | 302 | 300 |
| 423 | liver | 2 | 30 | 244 | 636 |
| 423 | Liver diseases | 3 | 30 | 2054 | 6937 |
| 426 | community participation | 3 | 29 | 44 | 175 |
| 426 | Faculty | 3 | 29 | 44 | 175 |
| 428 | Microbial Ecology | 1 | 28 | 8130 | 11878 |
| 428 | Biofilms | 1 | 28 | 248 | 664 |
| 428 | Microorganisms | 1 | 28 | 2653 | 4420 |
| 431 | Sociology | 3 | 27 | 3504 | 7810 |
| 431 | Geology | 1 | 27 | 6349 | 6665 |
| 431 | Dentistry | 1 | 27 | 2402 | 1735 |
| 431 | Geobiology | 1 | 27 | 651 | 993 |
| 435 | Neurogenetics | 1 | 26 | 750 | 1051 |
| 435 | Pediatric Endocrinology | 2 | 26 | 424 | 497 |
| 435 | Metabolic disorders in children | 2 | 26 | 363 | 405 |
| 435 | radioactive waste | 1 | 26 | 1489 | 3098 |
| 435 | industrial waste | 1 | 26 | 1613 | 3119 |
| 435 | Hazardous waste | 1 | 26 | 1855 | 3359 |
| 435 | Chronic diseases | 1 | 26 | 1769 | 2543 |
| 442 | Physical Chemistry | 1 | 25 | 6059 | 7259 |
| 443 | transgenic organisms | 1 | 23 | 400 | 850 |
| 443 | Plant genetic engineering | 1 | 23 | 1910 | 3137 |
| 443 | transgenic animals | 1 | 23 | 386 | 829 |
| 443 | Transgenic plants | 1 | 23 | 819 | 1531 |
| 447 | Social work | 2 | 22 | 1569 | 2697 |
| 448 | Nanotechnology | 1 | 21 | 23476 | 29555 |
| 448 | Mathematics | 1 | 21 | 17626 | 14965 |
| 448 | Nanobiotechnology | 1 | 21 | 1250 | 2959 |
| 448 | Transplantation | 2 | 21 | 2391 | 5386 |
| 448 | rare diseases | 2 | 21 | 981 | 2691 |
| 453 | Psychosomatic Medicine | 2 | 20 | 1171 | 3071 |
| 453 | Medical Anthropology | 2 | 20 | 2336 | 5558 |
| 453 | Electromagnetic fields | 2 | 20 | 303 | 400 |
| 453 | Emotions | 1 | 20 | 1035 | 1536 |
| 457 | Signal Processing | 1 | 19 | 7113 | 8467 |
| 457 | health behavior | 1 | 19 | 1998 | 2715 |
| 457 | Holistic Health | 2 | 19 | 393 | 1127 |
| 457 | actuators | 2 | 19 | 4479 | 8378 |
| 457 | transducers | 2 | 19 | 4479 | 8378 |
| 462 | Technology | 2 | 18 | 9323 | 17607 |
| 463 | Morphology | 1 | 17 | 1521 | 2299 |
| 463 | Educational Psychology | 1 | 17 | 2649 | 3517 |
| 463 | Music | 2 | 17 | 1077 | 1736 |
| 463 | Human-Computer Interaction | 1 | 17 | 2984 | 4292 |
| 463 | Genetic disorders | 1 | 17 | 1208 | 2045 |
| 463 | Online social networks | 1 | 17 | 427 | 730 |
| 463 | Disability Law | 1 | 17 | 89 | 156 |
| 463 | mental health promotion | 1 | 17 | 304 | 530 |
| 463 | internet | 1 | 17 | 3295 | 4454 |
| 463 | Scandinavia | 4 | 17 | 376 | 1427 |
| 463 | Cognitive Learning | 1 | 17 | 125 | 225 |
| 474 | Neuroimaging | 2 | 16 | 485 | 1058 |
| 474 | Speech Perception | 2 | 16 | 311 | 850 |
| 474 | auditory perception | 2 | 16 | 336 | 900 |
| 474 | Electrocardiography | 1 | 16 | 241 | 355 |
| 474 | Hearing Aids | 2 | 16 | 217 | 427 |
| 474 | Mitochondria | 1 | 16 | 504 | 1288 |
| 474 | Oral communication | 2 | 16 | 267 | 655 |
| 481 | Biosensors | 1 | 15 | 4249 | 7628 |
| 481 | Molecular Microbiology | 1 | 15 | 2535 | 4790 |
| 481 | Nonverbal Communication | 3 | 15 | 102 | 537 |
| 481 | Hematopoietic stem cell transplantation | 1 | 15 | 1142 | 2773 |
| 481 | Bacterial diseases | 1 | 15 | 443 | 1116 |
| 486 | Kinesiology | 1 | 14 | 182 | 359 |
| 486 | Bioengineering | 1 | 14 | 20512 | 29270 |
| 486 | Meteorology | 1 | 14 | 5884 | 9621 |
| 486 | Kinetics | 1 | 14 | 811 | 1227 |
| 486 | Social welfare | 1 | 14 | 938 | 1412 |
| 486 | behavior therapy | 2 | 14 | 883 | 1944 |
| 486 | Personality Assessment | 1 | 14 | 777 | 1317 |
| 486 | allied health | 1 | 14 | 455 | 874 |
| 494 | Botany | 1 | 13 | 12769 | 18491 |
| 494 | Clinical Trials | 1 | 13 | 1265 | 2015 |
| 494 | Cardiovascular Pharmacology | 1 | 13 | 158 | 598 |
| 494 | Interferons | 1 | 13 | 550 | 1254 |
| 494 | Amyloidosis | 1 | 13 | 243 | 560 |
| 494 | acupuncture | 1 | 13 | 165 | 232 |
| 494 | eye | 1 | 13 | 382 | 1031 |
| 494 | cytokines | 1 | 13 | 4588 | 7824 |
| 494 | Vision | 1 | 13 | 1528 | 2611 |
| 494 | Cytokine | 1 | 13 | 876 | 2142 |
| 504 | Rheumatology | 2 | 12 | 1587 | 4019 |
| 504 | Neuroanatomy | 2 | 12 | 268 | 1190 |
| 504 | Medical Ethics | 2 | 12 | 1230 | 3010 |
| 504 | Traditional medicine | 1 | 12 | 269 | 728 |
| 504 | Menopause | 1 | 12 | 607 | 1168 |
| 509 | gene therapy | 2 | 11 | 2402 | 8214 |
| 510 | Marine Biology | 1 | 10 | 6184 | 10142 |
| 510 | Marine Ecology | 1 | 10 | 1145 | 2150 |
| 510 | Functional Genomics | 1 | 10 | 741 | 2001 |
| 510 | Depression | 1 | 10 | 830 | 1837 |
| 510 | Water pollution | 1 | 10 | 7383 | 12185 |
| 510 | Reproductive health | 1 | 10 | 1828 | 3537 |
| 510 | Obsessive-Compulsive Disorder | 1 | 10 | 204 | 289 |
| 510 | ecosystem | 1 | 10 | 2852 | 5719 |
| 510 | drug addiction | 1 | 10 | 2912 | 4781 |
| 510 | mental processes | 1 | 10 | 980 | 1550 |
| 510 | Flow cytometry | 1 | 10 | 785 | 1941 |
| 521 | Clinical Psychology | 1 | 9 | 2164 | 3755 |
| 521 | Pharmacogenomics | 1 | 9 | 651 | 1925 |
| 521 | mental health policy | 1 | 9 | 340 | 740 |
| 521 | police psychology | 1 | 9 | 149 | 263 |
| 521 | Extracellular matrix | 1 | 9 | 640 | 1773 |
| 521 | crime | 1 | 9 | 1139 | 1565 |
| 521 | Growth | 1 | 9 | 4041 | 7408 |
| 521 | traffic safety | 1 | 9 | 468 | 1001 |
| 521 | collagen | 1 | 9 | 698 | 1858 |
| 530 | Health Services Administration | 1 | 8 | 1831 | 3747 |
| 530 | Forensic Psychology | 1 | 8 | 752 | 1271 |
| 530 | General Surgery | 2 | 8 | 886 | 2532 |
| 530 | Long-Term Care | 1 | 8 | 1232 | 2363 |
| 530 | Long-term care facilities | 1 | 8 | 1223 | 2351 |
| 530 | monoclonal antibodies | 1 | 8 | 502 | 1144 |
| 530 | Developmental Immunology | 1 | 8 | 1120 | 2813 |
| 530 | Personality Disorders | 2 | 8 | 302 | 898 |
| 530 | Health promotion | 1 | 8 | 2805 | 4944 |
| 539 | Nutrition physiology | 1 | 7 | 1580 | 3634 |
| 539 | Liposomes | 1 | 7 | 1058 | 2271 |
| 539 | Lipid bilayers | 1 | 7 | 803 | 1617 |
| 539 | violence | 1 | 7 | 1615 | 3048 |
| 539 | sex crimes | 1 | 7 | 401 | 987 |
| 544 | Apoptosis | 1 | 6 | 617 | 2022 |
| 544 | neurotoxins | 1 | 6 | 617 | 2022 |
| 544 | Neurotoxic agents | 1 | 6 | 617 | 2022 |
| 544 | Family Therapy | 1 | 6 | 1398 | 2397 |
| 544 | optical instruments | 1 | 6 | 527 | 971 |
| 544 | child mental health | 1 | 6 | 944 | 1810 |
| 544 | Reading | 1 | 6 | 707 | 1254 |
| 544 | optical phenomena | 1 | 6 | 232 | 540 |
| 544 | Bones | 1 | 6 | 2402 | 5477 |
| 544 | Nerve regeneration | 1 | 6 | 617 | 2022 |
| 554 | Ethics | 1 | 5 | 2013 | 4027 |
| 554 | Bioethics | 1 | 5 | 1476 | 2730 |
| 554 | Healing | 1 | 5 | 131 | 468 |
| 554 | Metabolic syndrome | 1 | 5 | 558 | 1841 |
| 554 | Genetic therapy | 1 | 5 | 4651 | 10051 |
| 554 | Decision making | 1 | 5 | 2888 | 6467 |
| 554 | Pregnancy | 1 | 5 | 2270 | 4848 |
| 554 | children | 1 | 5 | 580 | 1300 |
| 562 | Special Education | 1 | 4 | 995 | 1681 |
| 562 | Sarcopenia | 1 | 4 | 832 | 2600 |
| 562 | women | 1 | 4 | 1204 | 2971 |
| 565 | Oral Medicine | 1 | 3 | 2454 | 4998 |
| 565 | Psychometrics | 1 | 3 | 609 | 1296 |
| 565 | Well-being | 1 | 3 | 179 | 567 |
| 565 | Dance therapy | 1 | 3 | 221 | 568 |
| 565 | Positive Psychology | 1 | 3 | 268 | 768 |
| 565 | Endocrine system | 7 | 3 | 169 | 2090 |
| 565 | drug abuse | 1 | 3 | 1376 | 3186 |
| 572 | Cochlear Implants | 1 | 2 | 119 | 310 |
| 572 | Optics | 1 | 2 | 9948 | 15542 |
| 572 | Public Policy | 1 | 2 | 4364 | 9625 |
| 572 | Pediatric Neuropsychology | 1 | 2 | 192 | 584 |
| 572 | Organ transplantation | 1 | 2 | 1197 | 2510 |
| 572 | Cardiopulmonary Resuscitation | 2 | 2 | 78 | 412 |
| 572 | Teaching | 1 | 2 | 3423 | 7112 |
| 572 | cardiac arrest | 2 | 2 | 78 | 412 |
| 572 | Carbon | 1 | 2 | 2920 | 5392 |
| 572 | Neurodevelopmental disorders | 2 | 2 | 36 | 257 |
| 582 | Pharmacy | 1 | 1 | 7742 | 16186 |
| 582 | Disability Studies | 1 | 1 | 236 | 830 |
| 582 | motor skills | 1 | 1 | 369 | 1113 |
| 585 | Hematology | 1 | 0 | 10323 | 18103 |
| 585 | Emergency Nursing | 1 | 0 | 211 | 642 |
| 585 | Palliative Care | 1 | 0 | 2027 | 4870 |
| 585 | Psychoanalysis | 1 | 0 | 415 | 962 |
| 585 | Immunogenetics | 1 | 0 | 1752 | 4486 |
| 585 | Geriatric Oncology | 1 | 0 | 1420 | 4029 |
| 585 | protein | 1 | 0 | 3719 | 8209 |
| 585 | Gastrointestinal diseases | 1 | 0 | 1276 | 4318 |