| 1 | Science | 5,737 | 758.0K | 20 | 19 |
| 2 | Biology | 5,493 | 652.3K | 24 | 21 |
| 3 | Medicine | 6,739 | 537.4K | 10 | 10 |
| 4 | Physics | 3,860 | 536.8K | 70 | 36 |
| 5 | Biochemistry | 4,810 | 347.2K | 26 | 16 |
| 6 | Natural history | 998 | 346.6K | 37 | 23 |
| 7 | Molecular Biology | 3,063 | 272.7K | 32 | 27 |
| 8 | Cytology | 1,666 | 237.7K | 29 | 27 |
| 9 | Neurology | 3,263 | 237.2K | 25 | 29 |
| 10 | Cell Biology | 1,443 | 223.6K | 25 | 25 |
| 11 | Ecology | 1,873 | 179.7K | 31 | 20 |
| 12 | Chemistry | 2,128 | 173.5K | 161 | 97 |
| 13 | Virology | 1,144 | 164.8K | 20 | 26 |
| 14 | Microbiology | 1,701 | 160.4K | 41 | 24 |
| 15 | Research | 3,350 | 150.8K | 19 | 19 |
| 16 | Genetics | 1,458 | 147.6K | 23 | 23 |
| 17 | Psychiatry | 1,657 | 130.9K | 22 | 18 |
| 18 | Human genetics | 566 | 119.4K | 30 | 39 |
| 19 | Biophysics | 2,722 | 113.0K | 10 | 9 |
| 20 | Surgery | 582 | 108.9K | 12 | 6 |
| 21 | Cardiovascular system | 1,423 | 103.8K | 3 | 7 |
| 22 | Public Health | 1,956 | 101.9K | 17 | 23 |
| 23 | Psychology | 1,634 | 101.9K | 17 | 21 |
| 24 | Pediatrics | 1,423 | 92.7K | 18 | 8 |
| 25 | Immunology | 1,278 | 91.2K | 18 | 23 |
| 26 | Pollution | 1,051 | 88.9K | 33 | 19 |
| 27 | United States | 2,093 | 87.5K | 32 | 20 |
| 28 | Pharmacology | 1,640 | 84.5K | 15 | 9 |
| 29 | Environmental Health | 1,200 | 84.5K | 20 | 17 |
| 30 | Neurophysiology | 1,055 | 82.4K | 27 | 29 |
| 31 | Environment | 911 | 82.2K | 37 | 23 |
| 32 | Hematology | 1,624 | 79.1K | 15 | 17 |
| 33 | Nuclear Physics | 1,861 | 75.2K | 87 | 85 |
| 34 | Hypertension | 962 | 73.9K | 7 | 8 |
| 35 | Medical genetics | 1,004 | 72.7K | 18 | 27 |
| 36 | Economics | 901 | 70.7K | 32 | 19 |
| 37 | Immunity | 549 | 69.3K | 14 | 23 |
| 38 | Developmental Biology | 746 | 69.1K | 18 | 19 |
| 39 | Physiology | 1,051 | 68.1K | 47 | 21 |
| 40 | Geriatrics | 1,718 | 67.7K | 5 | 6 |
| 41 | Nanotechnology | 699 | 66.6K | 125 | 82 |
| 42 | Psychophysiology | 1,030 | 65.9K | 21 | 20 |
| 43 | Cancer | 956 | 64.2K | 21 | 22 |
| 44 | Epidemiology | 899 | 62.6K | 30 | 17 |
| 45 | Endocrinology | 943 | 61.5K | 36 | 39 |
| 46 | Mental Disorders | 681 | 60.6K | 27 | 21 |
| 47 | Botany | 911 | 60.1K | 49 | 36 |
| 48 | Toxicology | 1,102 | 55.5K | 16 | 5 |
| 49 | Sociology | 620 | 55.4K | 21 | 7 |
| 50 | Behavior | 1,062 | 52.7K | 15 | 21 |
| 51 | Biotechnology | 519 | 50.0K | 155 | 71 |
| 52 | Statistics | 959 | 49.9K | 7 | 18 |
| 53 | Environmental Engineering | 573 | 49.8K | 36 | 19 |
| 54 | Metabolic diseases | 529 | 49.2K | 34 | 29 |
| 55 | Child psychology | 485 | 48.2K | 20 | 13 |
| 56 | Medical Oncology | 822 | 47.4K | 10 | 8 |
| 57 | Neurons | 233 | 47.3K | 17 | 18 |
| 58 | Obstetrics | 997 | 46.9K | 14 | 8 |
| 59 | Growth | 360 | 46.4K | 17 | 13 |
| 60 | biological evolution | 539 | 46.0K | 12 | 20 |
| 61 | Materials | 332 | 45.7K | 506 | 156 |
| 62 | Radiobiology | 747 | 45.3K | 9 | 8 |
| 63 | Aging | 1,111 | 42.7K | 6 | 8 |
| 64 | Medical Physics | 1,445 | 42.2K | 6 | 6 |
| 65 | Social Psychology | 527 | 41.8K | 32 | 34 |
| 66 | Brain | 822 | 40.7K | 17 | 28 |
| 67 | Psychopharmacology | 499 | 40.2K | 10 | 12 |
| 68 | Crystallography | 31 | 39.9K | 450 | 8 |
| 69 | Materials Science | 383 | 39.6K | 215 | 100 |
| 70 | Urology | 1,170 | 39.5K | 8 | 14 |
| 71 | X-ray crystallography | 20 | 39.5K | 144 | 5 |
| 72 | viruses | 521 | 39.4K | 13 | 16 |
| 73 | Cell differentiation | 388 | 39.2K | 22 | 23 |
| 74 | marketing | 183 | 38.7K | 32 | 10 |
| 75 | Ophthalmology | 705 | 37.9K | 7 | 6 |
| 76 | Liver diseases | 317 | 37.8K | 18 | 14 |
| 77 | Cytogenetics | 276 | 37.6K | 25 | 15 |
| 78 | Child Development | 505 | 37.6K | 23 | 22 |
| 79 | Biomedical Engineering | 894 | 37.4K | 36 | 29 |
| 80 | Oncology | 480 | 36.6K | 14 | 17 |
| 81 | Nervous system | 423 | 36.5K | 34 | 30 |
| 82 | Bioengineering | 416 | 35.6K | 99 | 75 |
| 83 | sanitation | 344 | 35.2K | 20 | 18 |
| 84 | human behavior | 465 | 35.1K | 28 | 31 |
| 85 | Anatomy | 406 | 34.7K | 25 | 17 |
| 86 | Embryology | 355 | 34.6K | 26 | 21 |
| 87 | management | 231 | 34.2K | 147 | 60 |
| 88 | Cognitive neuroscience | 281 | 34.0K | 15 | 14 |
| 89 | Plant cells | 189 | 33.6K | 42 | 23 |
| 90 | Metabolism | 506 | 32.8K | 61 | 74 |
| 91 | Animal Behavior | 481 | 31.4K | 18 | 20 |
| 92 | pain | 335 | 31.3K | 18 | 7 |
| 93 | Genetic regulation | 160 | 30.4K | 26 | 13 |
| 94 | Mental illness | 439 | 30.2K | 21 | 22 |
| 95 | Pharmaceutical Chemistry | 587 | 30.0K | 41 | 32 |
| 96 | Chronic diseases | 180 | 29.5K | 13 | 12 |
| 97 | Host-parasite interactions | 308 | 29.5K | 7 | 8 |
| 98 | Gerontology | 956 | 28.9K | 6 | 4 |
| 99 | Neurobiology | 387 | 28.8K | 26 | 26 |
| 100 | Optics | 704 | 28.8K | 122 | 49 |
| 101 | Polymers | 607 | 27.9K | 153 | 101 |
| 102 | Gene expression regulation | 152 | 27.3K | 21 | 14 |
| 103 | arthritis | 388 | 27.2K | 11 | 12 |
| 104 | proteins | 175 | 27.1K | 61 | 7 |
| 105 | Developmental Genetics | 145 | 26.9K | 21 | 15 |
| 106 | Health | 538 | 26.5K | 9 | 7 |
| 107 | Ethology | 357 | 26.1K | 17 | 16 |
| 108 | Evolution | 330 | 26.1K | 26 | 31 |
| 109 | finance | 176 | 25.9K | 64 | 6 |
| 110 | Biocompatible Materials | 335 | 25.6K | 176 | 117 |
| 111 | Meteorology | 321 | 24.8K | 86 | 58 |
| 112 | Psychosomatic Medicine | 250 | 24.7K | 2 | 1 |
| 113 | Neurochemistry | 465 | 24.6K | 26 | 34 |
| 114 | Cell metabolism | 82 | 24.5K | 13 | 8 |
| 115 | Homeostasis | 81 | 24.5K | 10 | 8 |
| 116 | Geophysics | 483 | 24.5K | 185 | 126 |
| 117 | viral genetics | 92 | 23.8K | 18 | 15 |
| 118 | environmental pollution | 463 | 23.7K | 72 | 59 |
| 119 | Transplantation | 484 | 23.7K | 15 | 16 |
| 120 | protein | 98 | 23.5K | 55 | 4 |
| 121 | Molecular Genetics | 259 | 23.5K | 25 | 14 |
| 122 | Therapeutics | 375 | 23.4K | 15 | 13 |
| 123 | Critical Care | 305 | 23.3K | 23 | 26 |
| 124 | Critical Care Medicine | 302 | 23.3K | 27 | 27 |
| 125 | Medical Microbiology | 256 | 23.0K | 61 | 24 |
| 126 | Health promotion | 519 | 23.0K | 6 | 6 |
| 127 | Obesity | 412 | 22.7K | 19 | 17 |
| 128 | gene mapping | 271 | 22.6K | 24 | 22 |
| 129 | Biometrics | 376 | 22.6K | 7 | 7 |
| 130 | Allergy | 203 | 22.6K | 36 | 37 |
| 131 | Econometrics | 230 | 22.5K | 15 | 21 |
| 132 | Biodiversity conservation | 222 | 22.1K | 26 | 36 |
| 133 | drug therapy | 497 | 22.0K | 20 | 15 |
| 134 | Environmental Toxicology | 220 | 21.9K | 26 | 11 |
| 135 | Clinical Psychology | 226 | 21.8K | 28 | 11 |
| 136 | Statistical physics | 463 | 21.6K | 152 | 76 |
| 137 | miniaturization | 175 | 21.2K | 73 | 46 |
| 138 | cell physiology | 268 | 20.7K | 23 | 21 |
| 139 | Immune system | 131 | 20.7K | 31 | 38 |
| 140 | Heart Failure | 484 | 20.6K | 1 | 1 |
| 141 | Memory | 512 | 20.5K | 22 | 27 |
| 142 | Cognitive Science | 142 | 20.5K | 33 | 15 |
| 143 | Cognition | 343 | 20.5K | 30 | 33 |
| 144 | nanoscience | 216 | 20.3K | 132 | 93 |
| 145 | Nutrition | 512 | 20.1K | 60 | 92 |
| 146 | Environmental Policy | 229 | 20.0K | 76 | 41 |
| 147 | Plant physiology | 175 | 19.9K | 95 | 34 |
| 148 | Spectrum analysis | 288 | 19.9K | 315 | 276 |
| 149 | Health Policy | 490 | 19.9K | 20 | 18 |
| 150 | Diagnostic microbiology | 187 | 19.9K | 17 | 10 |
| 151 | Pathology | 353 | 19.8K | 43 | 41 |
| 152 | Anxiety Disorders | 100 | 19.7K | 15 | 3 |
| 153 | Biochemical Engineering | 139 | 19.7K | 292 | 140 |
| 154 | Diabetes | 255 | 19.6K | 72 | 52 |
| 155 | Dermatology | 429 | 19.6K | 31 | 23 |
| 156 | Analytical Biochemistry | 126 | 19.5K | 30 | 5 |
| 157 | polymerization | 467 | 19.3K | 148 | 115 |
| 158 | Diabetes mellitus | 230 | 19.3K | 68 | 49 |
| 159 | Neuropsychology | 328 | 19.2K | 43 | 23 |
| 160 | Astrophysics | 219 | 19.2K | 431 | 377 |
| 161 | Immunotherapy | 209 | 19.2K | 41 | 29 |
| 162 | Anxiety | 93 | 19.0K | 18 | 3 |
| 162 | Radio | 400 | 19.0K | 20 | 27 |
| 164 | Water | 284 | 19.0K | 57 | 51 |
| 165 | preventive medicine | 325 | 18.6K | 11 | 15 |
| 166 | Political Science | 410 | 18.4K | 16 | 16 |
| 167 | Attention | 478 | 18.4K | 16 | 16 |
| 168 | Rheumatology | 267 | 18.4K | 11 | 12 |
| 169 | Virulence | 257 | 18.3K | 8 | 13 |
| 170 | Social Sciences | 501 | 18.3K | 34 | 27 |
| 171 | Decision making | 293 | 18.3K | 4 | 9 |
| 172 | older people | 821 | 18.1K | 4 | 3 |
| 173 | Perception | 489 | 18.0K | 27 | 26 |
| 174 | Climate change | 144 | 18.0K | 20 | 35 |
| 175 | Eutrophication | 140 | 17.8K | 22 | 35 |
| 176 | Mycology | 308 | 17.8K | 8 | 2 |
| 177 | Bacteriology | 186 | 17.6K | 89 | 63 |
| 178 | Clinical Chemistry | 419 | 17.6K | 31 | 36 |
| 179 | Mathematical Physics | 205 | 17.4K | 203 | 52 |
| 180 | Genomics | 408 | 17.4K | 43 | 47 |
| 181 | Marine Biology | 317 | 17.2K | 61 | 39 |
| 182 | Oceanography | 253 | 17.2K | 72 | 50 |
| 183 | nucleic acids | 246 | 17.1K | 35 | 78 |
| 184 | Environmental monitoring | 317 | 17.0K | 49 | 46 |
| 185 | Operations Research | 257 | 17.0K | 43 | 22 |
| 186 | Molecular evolution | 174 | 16.9K | 30 | 28 |
| 187 | Health Education | 454 | 16.8K | 15 | 10 |
| 188 | Sleep | 178 | 16.7K | 47 | 18 |
| 189 | Quantum Gravity | 372 | 16.6K | 164 | 162 |
| 190 | alcoholism | 453 | 16.5K | 22 | 22 |
| 191 | Depression | 68 | 16.5K | 13 | 2 |
| 192 | free radicals | 197 | 16.0K | 12 | 12 |
| 193 | Child | 588 | 16.0K | 22 | 29 |
| 194 | Solid State Physics | 349 | 16.0K | 329 | 223 |
| 195 | Electronics | 400 | 15.9K | 106 | 81 |
| 196 | drug development | 214 | 15.8K | 10 | 14 |
| 197 | Medical innovations | 194 | 15.8K | 12 | 18 |
| 198 | commerce | 95 | 15.7K | 42 | 31 |
| 199 | Sleep Disorders | 177 | 15.5K | 50 | 15 |
| 200 | health behavior | 401 | 15.3K | 10 | 11 |
| 201 | environmental protection | 244 | 15.2K | 53 | 26 |
| 202 | psychotherapy | 152 | 15.2K | 51 | 26 |
| 203 | Plants | 141 | 15.1K | 104 | 59 |
| 204 | Visual Perception | 434 | 15.1K | 25 | 25 |
| 205 | Schizophrenia | 186 | 15.1K | 31 | 14 |
| 206 | behavioral medicine | 340 | 15.1K | 3 | 21 |
| 207 | mycoses | 132 | 15.0K | 4 | 9 |
| 208 | Condensed Matter | 308 | 14.8K | 333 | 252 |
| 209 | Orthopedics | 377 | 14.8K | 12 | 15 |
| 210 | Signal Processing | 203 | 14.8K | 162 | 95 |
| 211 | personality | 212 | 14.7K | 47 | 51 |
| 212 | Substance Abuse | 406 | 14.7K | 22 | 14 |
| 213 | Biomechanics | 216 | 14.7K | 22 | 19 |
| 214 | Research Design | 348 | 14.7K | 5 | 23 |
| 215 | Business | 113 | 14.6K | 101 | 50 |
| 216 | Pediatric Neurology | 145 | 14.5K | 27 | 42 |
| 217 | Hydrology | 307 | 14.5K | 43 | 51 |
| 218 | Microelectronics | 131 | 14.4K | 119 | 63 |
| 219 | Microbial Ecology | 133 | 14.4K | 150 | 100 |
| 220 | Developmental Psychology | 207 | 14.2K | 26 | 21 |
| 221 | plant communities | 125 | 14.2K | 21 | 7 |
| 222 | Adolescent | 478 | 13.9K | 23 | 23 |
| 223 | Technology | 283 | 13.9K | 140 | 66 |
| 224 | Genetic engineering | 117 | 13.7K | 102 | 19 |
| 225 | Education | 325 | 13.7K | 146 | 77 |
| 226 | Radiography | 343 | 13.5K | 6 | 13 |
| 227 | Bacterial infections | 99 | 13.4K | 16 | 9 |
| 228 | Nonlinear Dynamics | 262 | 13.4K | 77 | 38 |
| 229 | Post-traumatic stress disorder | 205 | 13.4K | 4 | 5 |
| 230 | Population Genetics | 184 | 12.9K | 18 | 26 |
| 231 | Developing countries | 281 | 12.8K | 25 | 23 |
| 232 | child abuse | 121 | 12.8K | 20 | 6 |
| 233 | rehabilitation | 294 | 12.7K | 41 | 39 |
| 234 | Anthropology | 402 | 12.6K | 24 | 15 |
| 235 | Molecular ecology | 144 | 12.6K | 22 | 28 |
| 236 | ecosystem | 140 | 12.5K | 15 | 12 |
| 237 | Cerebral cortex | 102 | 12.4K | 43 | 16 |
| 238 | Computational Biology | 282 | 12.3K | 45 | 87 |
| 239 | Diet | 170 | 12.1K | 94 | 74 |
| 240 | Atmospheric Physics | 159 | 12.1K | 122 | 76 |
| 241 | Economic Development | 180 | 12.0K | 24 | 27 |
| 242 | DNA polymerases | 74 | 12.0K | 15 | 18 |
| 243 | Primates | 262 | 12.0K | 5 | 3 |
| 244 | genome | 155 | 11.9K | 50 | 71 |
| 245 | medical education | 327 | 11.9K | 31 | 24 |
| 246 | Engineering | 338 | 11.9K | 99 | 54 |
| 247 | Plant Ecology | 120 | 11.8K | 96 | 31 |
| 248 | Social behavior | 160 | 11.8K | 22 | 19 |
| 249 | drug addiction | 311 | 11.8K | 21 | 26 |
| 250 | Mathematics | 816 | 11.7K | 161 | 169 |
| 251 | Sports Medicine | 317 | 11.4K | 49 | 61 |
| 252 | Water pollution | 182 | 11.4K | 112 | 93 |
| 253 | Lung Transplantation | 199 | 11.3K | 10 | 10 |
| 253 | Heart transplantation | 199 | 11.3K | 10 | 10 |
| 255 | Artificial Intelligence | 200 | 11.3K | 174 | 136 |
| 256 | Biogeochemistry | 89 | 11.2K | 80 | 21 |
| 257 | Diagnostic Imaging | 274 | 11.2K | 28 | 29 |
| 258 | Membranes | 196 | 11.1K | 64 | 54 |
| 259 | Economic History | 259 | 11.0K | 84 | 39 |
| 260 | organization | 64 | 10.9K | 48 | 35 |
| 261 | plant molecular biology | 80 | 10.8K | 170 | 101 |
| 262 | Learning | 171 | 10.8K | 36 | 30 |
| 263 | water supply | 175 | 10.7K | 21 | 23 |
| 264 | Planets | 228 | 10.7K | 105 | 99 |
| 265 | Physical Therapy | 360 | 10.7K | 11 | 26 |
| 266 | Radiology | 371 | 10.6K | 9 | 9 |
| 267 | Conservation Biology | 148 | 10.6K | 19 | 17 |
| 268 | Health Services Administration | 221 | 10.6K | 8 | 5 |
| 269 | Smoking | 286 | 10.5K | 10 | 10 |
| 270 | Medical Anthropology | 218 | 10.5K | 24 | 34 |
| 271 | Health Services Research | 275 | 10.4K | 30 | 32 |
| 272 | Adolescent Medicine | 131 | 10.4K | 17 | 11 |
| 273 | transport vesicles | 5 | 10.3K | 113 | 99 |
| 274 | Sound | 191 | 10.3K | 10 | 8 |
| 275 | Chromosome mapping | 192 | 10.3K | 34 | 33 |
| 276 | Alzheimer's disease | 372 | 10.3K | 39 | 40 |
| 277 | Ultrasonics | 181 | 10.2K | 7 | 6 |
| 278 | Electrophysiology | 484 | 10.2K | 1 | 1 |
| 279 | Stem cells | 195 | 10.2K | 31 | 23 |
| 280 | Analytical Chemistry | 218 | 10.1K | 358 | 259 |
| 281 | Molecular structure | 116 | 10.0K | 126 | 65 |
| 282 | Human evolution | 179 | 10.0K | 3 | 6 |
| 283 | Ultrasound | 173 | 10.0K | 4 | 4 |
| 284 | Organic Chemistry | 323 | 10.0K | 61 | 102 |
| 285 | mass transfer | 197 | 9.9K | 47 | 34 |
| 286 | Phylogeny | 83 | 9.9K | 30 | 4 |
| 287 | Respiration | 220 | 9.8K | 41 | 45 |
| 288 | Colloids | 186 | 9.7K | 345 | 236 |
| 289 | Cardiovascular diseases | 315 | 9.7K | 9 | 12 |
| 290 | Ferroelectricity | 166 | 9.6K | 16 | 4 |
| 290 | Radio frequency | 166 | 9.6K | 4 | 4 |
| 292 | Medical Laboratory Science | 195 | 9.6K | 44 | 65 |
| 293 | Demography | 138 | 9.5K | 18 | 8 |
| 294 | Biodiversity | 139 | 9.5K | 80 | 69 |
| 295 | Elderly | 622 | 9.5K | 5 | 2 |
| 296 | Bioorganic chemistry | 255 | 9.3K | 46 | 77 |
| 297 | Pharmacogenetics | 132 | 9.2K | 12 | 7 |
| 298 | Atmospheric Chemistry | 66 | 9.1K | 154 | 77 |
| 299 | Geology | 173 | 9.1K | 311 | 227 |
| 300 | Animal ecology | 119 | 8.9K | 54 | 19 |
| 301 | Oncogenes | 124 | 8.8K | 47 | 67 |
| 302 | Nanostructured Materials | 156 | 8.6K | 276 | 193 |
| 303 | Quality of life | 142 | 8.6K | 27 | 25 |
| 304 | Chemotherapy | 204 | 8.5K | 12 | 5 |
| 305 | Environmental Law | 100 | 8.5K | 28 | 24 |
| 306 | diseases | 18 | 8.4K | 39 | 43 |
| 307 | International Finance | 28 | 8.4K | 431 | 3 |
| 308 | Muscles | 185 | 8.3K | 2 | 5 |
| 309 | Wildlife conservation | 125 | 8.3K | 30 | 26 |
| 310 | Lipids | 71 | 8.2K | 95 | 23 |
| 311 | Climatology | 107 | 8.1K | 156 | 109 |
| 312 | Vaccines | 282 | 8.1K | 20 | 36 |
| 313 | Histology | 90 | 8.1K | 170 | 55 |
| 314 | Dementia | 345 | 8.1K | 41 | 44 |
| 315 | health services | 213 | 8.1K | 13 | 10 |
| 316 | Fisheries | 115 | 8.1K | 95 | 30 |
| 317 | Earth Sciences | 114 | 8.1K | 339 | 181 |
| 318 | Communication | 156 | 8.1K | 91 | 69 |
| 319 | Infertility | 162 | 8.0K | 25 | 33 |
| 320 | fertility | 162 | 8.0K | 27 | 35 |
| 321 | Nanostructures | 41 | 8.0K | 302 | 77 |
| 322 | International Relations | 72 | 8.0K | 102 | 5 |
| 323 | Leukemia | 99 | 7.9K | 67 | 63 |
| 324 | Signal Transduction | 116 | 7.9K | 47 | 38 |
| 325 | Molecular Microbiology | 90 | 7.7K | 44 | 41 |
| 326 | Environmental Chemistry | 146 | 7.7K | 49 | 127 |
| 327 | gene therapy | 135 | 7.6K | 29 | 30 |
| 328 | Geriatric Psychiatry | 155 | 7.6K | 9 | 8 |
| 329 | Public Policy | 243 | 7.6K | 17 | 24 |
| 330 | Immunopathology | 219 | 7.6K | 11 | 20 |
| 331 | Mental Health Services | 235 | 7.5K | 23 | 16 |
| 332 | Natural resources | 122 | 7.5K | 7 | 5 |
| 333 | Disease | 24 | 7.4K | 24 | 48 |
| 334 | enzymes | 164 | 7.4K | 20 | 19 |
| 335 | Health insurance | 192 | 7.4K | 6 | 12 |
| 336 | complementary therapies | 227 | 7.3K | 8 | 5 |
| 337 | behavior therapy | 166 | 7.3K | 21 | 18 |
| 338 | Primary health care | 219 | 7.2K | 38 | 32 |
| 339 | Spine | 154 | 7.2K | 13 | 21 |
| 340 | Risk | 100 | 7.1K | 7 | 8 |
| 341 | Neuromuscular diseases | 171 | 7.0K | 2 | 5 |
| 342 | soil microbiology | 71 | 7.0K | 140 | 94 |
| 343 | Mental Health | 244 | 7.0K | 23 | 25 |
| 344 | Information Theory | 197 | 7.0K | 38 | 61 |
| 345 | Combinatorial chemistry | 54 | 7.0K | 55 | 26 |
| 346 | Surface Chemistry | 138 | 6.9K | 453 | 310 |
| 347 | Fungi | 91 | 6.9K | 49 | 16 |
| 348 | Mathematical Economics | 28 | 6.9K | 43 | 18 |
| 349 | Zoology | 172 | 6.9K | 126 | 76 |
| 350 | Physical Chemistry | 118 | 6.9K | 186 | 127 |
| 351 | consumer behavior | 87 | 6.9K | 5 | 6 |
| 352 | Genetic therapy | 163 | 6.8K | 23 | 34 |
| 353 | Radio waves | 185 | 6.7K | 24 | 38 |
| 354 | Drug delivery systems | 68 | 6.7K | 96 | 51 |
| 355 | Organizational Behavior | 70 | 6.7K | 22 | 23 |
| 356 | Developmental Disabilities | 117 | 6.6K | 44 | 48 |
| 357 | RNA | 68 | 6.4K | 12 | 4 |
| 358 | human development | 98 | 6.2K | 35 | 27 |
| 359 | Development | 80 | 6.2K | 29 | 21 |
| 360 | Agriculture | 146 | 6.1K | 97 | 89 |
| 361 | Clinical Immunology | 181 | 6.0K | 16 | 17 |
| 362 | Industrial Microbiology | 31 | 5.9K | 401 | 59 |
| 363 | Drug design | 67 | 5.9K | 73 | 14 |
| 364 | world | 75 | 5.8K | 31 | 24 |
| 365 | violence | 122 | 5.8K | 20 | 19 |
| 366 | Astronomy | 163 | 5.8K | 445 | 502 |
| 367 | Community Psychiatry | 140 | 5.8K | 23 | 25 |
| 368 | Magnetic Resonance Imaging | 79 | 5.8K | 19 | 8 |
| 369 | Bioinformatics | 156 | 5.8K | 86 | 159 |
| 370 | Women's health | 260 | 5.8K | 12 | 16 |
| 371 | Communication in medicine | 107 | 5.7K | 17 | 5 |
| 372 | Thrombosis | 136 | 5.7K | 29 | 51 |
| 373 | Catalysis | 124 | 5.7K | 584 | 536 |
| 374 | Eating Disorders | 114 | 5.6K | 41 | 32 |
| 375 | Environmental pollutants | 102 | 5.6K | 106 | 53 |
| 376 | Educational Psychology | 84 | 5.6K | 151 | 85 |
| 376 | adolescence | 118 | 5.6K | 37 | 33 |
| 378 | Ecosystem management | 59 | 5.6K | 18 | 14 |
| 379 | Photonics | 118 | 5.6K | 173 | 180 |
| 380 | Medical Imaging | 66 | 5.5K | 16 | 8 |
| 381 | Energy Policy | 114 | 5.5K | 173 | 196 |
| 381 | environmental exposure | 163 | 5.5K | 23 | 25 |
| 383 | Sports | 134 | 5.5K | 132 | 86 |
| 384 | Clinical Trials | 257 | 5.5K | 3 | 11 |
| 385 | Neuropsychiatry | 115 | 5.4K | 19 | 13 |
| 386 | Nursing | 299 | 5.4K | 15 | 28 |
| 387 | Economic Assistance | 61 | 5.4K | 32 | 20 |
| 388 | Hormones | 78 | 5.3K | 95 | 42 |
| 389 | cloning | 43 | 5.3K | 37 | 17 |
| 390 | cardiac catheterization | 204 | 5.3K | 7 | 3 |
| 391 | Optical materials | 76 | 5.2K | 387 | 255 |
| 392 | pollutants | 85 | 5.2K | 106 | 49 |
| 393 | Clinical Biochemistry | 165 | 5.2K | 14 | 27 |
| 394 | Transport | 69 | 5.2K | 20 | 6 |
| 394 | Sea | 69 | 5.2K | 19 | 4 |
| 394 | Fishery resources | 69 | 5.2K | 20 | 4 |
| 397 | Kidney diseases | 165 | 5.2K | 24 | 26 |
| 398 | drugs | 208 | 5.1K | 45 | 79 |
| 399 | Automation | 67 | 5.1K | 343 | 243 |
| 400 | Adolescent Psychology | 105 | 5.0K | 21 | 17 |
| 401 | Image Processing | 75 | 5.0K | 274 | 180 |
| 402 | Light | 90 | 5.0K | 29 | 96 |
| 403 | Chromosomes | 108 | 4.9K | 17 | 22 |
| 404 | Microorganisms | 33 | 4.8K | 132 | 65 |
| 405 | Experimental Psychology | 54 | 4.8K | 44 | 24 |
| 406 | economic policy | 136 | 4.8K | 101 | 59 |
| 407 | Feeding and Eating Disorders | 100 | 4.8K | 42 | 35 |
| 408 | Cell death | 71 | 4.8K | 101 | 152 |
| 409 | Soil biology | 38 | 4.7K | 160 | 85 |
| 410 | Reproduction | 148 | 4.7K | 157 | 163 |
| 411 | energy resources | 83 | 4.7K | 50 | 97 |
| 412 | Oxidation-reduction | 72 | 4.7K | 19 | 36 |
| 413 | Hemodynamics | 86 | 4.7K | 33 | 47 |
| 414 | Neural circuitry | 40 | 4.7K | 331 | 81 |
| 415 | international trade | 38 | 4.7K | 44 | 16 |
| 416 | Geography | 107 | 4.7K | 211 | 162 |
| 417 | Engineering Mathematics | 82 | 4.7K | 144 | 44 |
| 418 | psychopathology | 48 | 4.7K | 19 | 24 |
| 419 | Environmental Microbiology | 76 | 4.6K | 71 | 95 |
| 420 | Pharmacy | 112 | 4.6K | 164 | 104 |
| 421 | United Kingdom | 102 | 4.6K | 110 | 128 |
| 422 | blood transfusion | 198 | 4.6K | 12 | 14 |
| 423 | Hydrodynamics | 66 | 4.5K | 29 | 14 |
| 424 | Probability | 69 | 4.5K | 22 | 9 |
| 425 | Chemical Engineering | 96 | 4.5K | 838 | 726 |
| 426 | Financial management | 56 | 4.5K | 10 | 6 |
| 427 | Geometry | 90 | 4.5K | 69 | 7 |
| 428 | Molecular Pharmacology | 82 | 4.4K | 28 | 24 |
| 429 | Community Psychology | 59 | 4.4K | 34 | 32 |
| 430 | Nephrology | 128 | 4.4K | 26 | 27 |
| 431 | Neurotransmitters | 145 | 4.3K | 6 | 13 |
| 432 | Systems Biology | 109 | 4.3K | 49 | 32 |
| 433 | Biogeochemical cycles | 46 | 4.3K | 34 | 38 |
| 434 | Contraception | 111 | 4.3K | 18 | 14 |
| 435 | Geochemistry | 63 | 4.3K | 402 | 288 |
| 436 | Religion and Psychology | 150 | 4.3K | 2 | 1 |
| 437 | counseling | 146 | 4.2K | 55 | 59 |
| 438 | Antioxidants | 65 | 4.2K | 15 | 26 |
| 439 | Reproductive toxicology | 72 | 4.2K | 3 | 6 |
| 440 | vascular diseases | 66 | 4.2K | 54 | 51 |
| 441 | Neuroimmunology | 66 | 4.2K | 27 | 29 |
| 442 | Discrete geometry | 56 | 4.2K | 12 | 6 |
| 443 | nuclear magnetic resonance | 152 | 4.2K | 38 | 47 |
| 444 | Risk Management | 57 | 4.2K | 17 | 8 |
| 445 | Telecommunication | 124 | 4.1K | 234 | 270 |
| 446 | Proteome | 74 | 4.1K | 62 | 68 |
| 447 | Biogeography | 55 | 4.1K | 88 | 75 |
| 448 | Hydraulic Engineering | 64 | 4.1K | 99 | 44 |
| 449 | General Surgery | 219 | 4.1K | 9 | 11 |
| 450 | Orthopedic Surgery | 93 | 4.0K | 20 | 9 |
| 451 | cell interaction | 69 | 4.0K | 28 | 11 |
| 452 | scientific societies | 99 | 4.0K | 15 | 11 |
| 453 | Child welfare | 180 | 4.0K | 18 | 24 |
| 454 | Geriatric Oncology | 87 | 4.0K | 12 | 8 |
| 455 | Nuclear Medicine | 126 | 3.9K | 38 | 59 |
| 456 | Population | 103 | 3.9K | 25 | 25 |
| 457 | Electrocardiography | 277 | 3.8K | 2 | 2 |
| 458 | Radioisotopes | 165 | 3.8K | 10 | 7 |
| 459 | Wireless Communication Systems | 101 | 3.8K | 253 | 212 |
| 460 | Thorax | 149 | 3.8K | 14 | 24 |
| 461 | Magnetic Resonance Spectroscopy | 149 | 3.7K | 38 | 54 |
| 462 | Soil Science | 53 | 3.7K | 256 | 145 |
| 462 | Production Management | 72 | 3.7K | 74 | 120 |
| 464 | Microeconomics | 73 | 3.6K | 10 | 13 |
| 465 | Investment analysis | 25 | 3.6K | 98 | 6 |
| 466 | Emergency Medicine | 161 | 3.6K | 63 | 63 |
| 467 | Database Management | 103 | 3.6K | 33 | 52 |
| 468 | Long-Term Care | 110 | 3.6K | 11 | 43 |
| 469 | Long-term care facilities | 109 | 3.6K | 11 | 43 |
| 470 | Patient education | 113 | 3.6K | 15 | 28 |
| 471 | Forest Ecology | 54 | 3.6K | 123 | 69 |
| 472 | Data Mining | 77 | 3.6K | 57 | 95 |
| 473 | Plant Taxonomy | 60 | 3.5K | 16 | 3 |
| 474 | carcinogens | 98 | 3.5K | 30 | 49 |
| 475 | Birth control | 90 | 3.5K | 10 | 10 |
| 476 | Morphology | 55 | 3.5K | 64 | 13 |
| 477 | Hospitals | 145 | 3.5K | 13 | 15 |
| 478 | Criminology | 110 | 3.5K | 56 | 52 |
| 479 | peace | 54 | 3.4K | 26 | 25 |
| 480 | computer networks | 72 | 3.4K | 290 | 164 |
| 481 | Reproductive health | 91 | 3.4K | 20 | 9 |
| 482 | disease outbreaks | 24 | 3.4K | 88 | 22 |
| 483 | Bone diseases | 36 | 3.4K | 19 | 24 |
| 484 | biopolymers | 54 | 3.4K | 163 | 77 |
| 485 | infection | 86 | 3.4K | 113 | 122 |
| 486 | Epidemics | 19 | 3.4K | 111 | 22 |
| 487 | Retina | 24 | 3.4K | 10 | 22 |
| 488 | data collection | 65 | 3.3K | 25 | 62 |
| 489 | Political Psychology | 45 | 3.3K | 14 | 15 |
| 490 | Medical Ethics | 213 | 3.3K | 16 | 18 |
| 491 | School Psychology | 36 | 3.3K | 72 | 27 |
| 492 | Forest Management | 64 | 3.3K | 97 | 76 |
| 492 | Personality Assessment | 43 | 3.3K | 49 | 34 |
| 494 | mutagens | 77 | 3.3K | 30 | 45 |
| 495 | Biopharmaceutics | 151 | 3.3K | 7 | 40 |
| 496 | Sustainable Development | 74 | 3.3K | 85 | 128 |
| 497 | Paleoclimatology | 43 | 3.3K | 189 | 89 |
| 498 | Fluid Mechanics | 78 | 3.2K | 143 | 111 |
| 499 | Social problems | 59 | 3.2K | 30 | 35 |
| 500 | health planning | 150 | 3.2K | 44 | 69 |
| 501 | Audiology | 100 | 3.2K | 42 | 58 |
| 502 | eye | 23 | 3.1K | 16 | 24 |
| 503 | drug abuse | 122 | 3.1K | 15 | 17 |
| 504 | Digestive system diseases | 114 | 3.1K | 25 | 26 |
| 505 | Criminal psychology | 68 | 3.1K | 59 | 60 |
| 506 | Emotions | 62 | 3.1K | 32 | 49 |
| 507 | Carcinogenesis | 90 | 3.1K | 27 | 56 |
| 508 | Soft Condensed Matter | 56 | 3.1K | 158 | 78 |
| 509 | Microscopy | 86 | 3.1K | 56 | 54 |
| 510 | Aggression | 28 | 3.1K | 54 | 11 |
| 511 | Liposomes | 32 | 3.1K | 44 | 30 |
| 512 | Nuclear Engineering | 169 | 3.1K | 80 | 65 |
| 513 | Palliative Care | 114 | 3.1K | 22 | 28 |
| 514 | Electrochemistry | 180 | 3.1K | 455 | 572 |
| 515 | Molecular Spectroscopy | 71 | 3.1K | 132 | 56 |
| 516 | Radio wave propagation | 44 | 3.0K | 67 | 6 |
| 517 | Public Administration | 63 | 3.0K | 155 | 91 |
| 518 | Bioethics | 164 | 3.0K | 17 | 15 |
| 519 | Social work | 153 | 3.0K | 75 | 74 |
| 520 | international cooperation | 51 | 3.0K | 28 | 18 |
| 521 | Physical fitness | 34 | 3.0K | 141 | 63 |
| 522 | Food | 88 | 3.0K | 325 | 360 |
| 523 | China | 91 | 3.0K | 272 | 170 |
| 524 | Radiation | 108 | 3.0K | 112 | 100 |
| 525 | Psychoneuroimmunology | 57 | 3.0K | 26 | 41 |
| 525 | mammals | 97 | 3.0K | 33 | 24 |
| 527 | natural products | 74 | 3.0K | 122 | 102 |
| 528 | Sexual health | 102 | 3.0K | 26 | 33 |
| 529 | Infections | 70 | 2.9K | 79 | 118 |
| 530 | Environmental Management | 75 | 2.9K | 309 | 385 |
| 531 | Structural dynamics | 69 | 2.9K | 97 | 113 |
| 532 | Microwaves | 140 | 2.9K | 80 | 99 |
| 533 | Uncertainty | 47 | 2.9K | 2 | 7 |
| 534 | Genetic Counseling | 83 | 2.9K | 5 | 3 |
| 535 | Nanoparticles | 65 | 2.8K | 187 | 174 |
| 536 | Hemophilia | 42 | 2.8K | 46 | 18 |
| 537 | Cognitive Therapy | 72 | 2.8K | 14 | 20 |
| 538 | Philosophy | 179 | 2.8K | 92 | 65 |
| 539 | Photochemistry | 80 | 2.8K | 74 | 81 |
| 540 | Psychiatric hospitals | 79 | 2.8K | 16 | 12 |
| 541 | school psychologists | 22 | 2.8K | 34 | 13 |
| 542 | Agricultural Ecology | 28 | 2.8K | 180 | 112 |
| 543 | warfare | 41 | 2.8K | 18 | 17 |
| 544 | Europe | 118 | 2.8K | 287 | 288 |
| 545 | Antigens | 92 | 2.8K | 22 | 39 |
| 546 | Psycholinguistics | 60 | 2.8K | 112 | 119 |
| 547 | Metallurgy | 38 | 2.7K | 543 | 295 |
| 548 | Lipid bilayers | 27 | 2.7K | 52 | 34 |
| 549 | Algae | 61 | 2.7K | 48 | 45 |
| 550 | Energy Conversion | 32 | 2.7K | 268 | 269 |
| 550 | chronic disease | 106 | 2.7K | 7 | 15 |
| 552 | Comparative Physiology | 58 | 2.7K | 73 | 58 |
| 553 | Pharmacognosy | 70 | 2.7K | 180 | 186 |
| 554 | Landscape Ecology | 22 | 2.6K | 60 | 20 |
| 555 | Malaria | 73 | 2.6K | 37 | 34 |
| 556 | War and Society | 36 | 2.6K | 17 | 18 |
| 557 | health services accessibility | 129 | 2.6K | 19 | 40 |
| 558 | Numerical Analysis | 90 | 2.6K | 201 | 129 |
| 559 | probabilities | 129 | 2.6K | 63 | 48 |
| 560 | Alternative Medicine | 80 | 2.6K | 57 | 47 |
| 561 | Aerosols | 76 | 2.6K | 27 | 40 |
| 562 | sexual behavior | 66 | 2.6K | 34 | 40 |
| 563 | Autism | 69 | 2.5K | 51 | 75 |
| 564 | brain mapping | 41 | 2.5K | 78 | 76 |
| 565 | Family Therapy | 80 | 2.5K | 32 | 24 |
| 566 | Autoimmunity | 42 | 2.5K | 76 | 77 |
| 567 | Computer Vision | 36 | 2.5K | 184 | 169 |
| 568 | Occupational Health | 101 | 2.5K | 31 | 44 |
| 569 | Tropical Medicine | 89 | 2.5K | 97 | 81 |
| 570 | Wetland ecology | 44 | 2.5K | 10 | 5 |
| 571 | Family | 93 | 2.5K | 58 | 75 |
| 572 | Genetic disorders | 57 | 2.4K | 24 | 20 |
| 573 | Neonatology | 69 | 2.4K | 9 | 11 |
| 574 | energy conservation | 39 | 2.4K | 373 | 345 |
| 575 | Multivariate Analysis | 33 | 2.4K | 54 | 23 |
| 576 | Portfolio Management | 24 | 2.4K | 25 | 6 |
| 577 | Cardiac electrophysiology | 52 | 2.4K | 11 | 12 |
| 577 | arrhythmia | 52 | 2.4K | 11 | 12 |
| 577 | Investments | 23 | 2.4K | 41 | 7 |
| 580 | Paleoecology | 35 | 2.4K | 218 | 109 |
| 581 | Paleogeography | 34 | 2.4K | 192 | 99 |
| 582 | Neuropharmacology | 48 | 2.4K | 19 | 17 |
| 583 | Antibodies | 62 | 2.4K | 21 | 28 |
| 584 | rare diseases | 35 | 2.3K | 69 | 20 |
| 585 | Welfare Economics | 41 | 2.3K | 29 | 23 |
| 586 | histological techniques | 41 | 2.3K | 53 | 51 |
| 587 | Yeast | 13 | 2.3K | 114 | 18 |
| 588 | visualization | 174 | 2.3K | 38 | 61 |
| 589 | Quantitative Research | 47 | 2.3K | 10 | 11 |
| 590 | Minority Health | 2 | 2.3K | 101 | 29 |
| 591 | Intellectual disability | 55 | 2.3K | 94 | 68 |
| 592 | Youth | 47 | 2.3K | 62 | 55 |
| 593 | Renewable Energy Sources | 33 | 2.3K | 632 | 635 |
| 594 | Synapses | 35 | 2.3K | 15 | 12 |
| 595 | Molecular cloning | 39 | 2.3K | 192 | 105 |
| 596 | Recombinant DNA | 38 | 2.2K | 222 | 122 |
| 597 | Genetic recombination | 37 | 2.2K | 196 | 104 |
| 598 | Marine mammals | 57 | 2.2K | 12 | 10 |
| 599 | tomography | 87 | 2.2K | 8 | 9 |
| 600 | Vision | 50 | 2.2K | 103 | 103 |
| 601 | DNA methylation | 33 | 2.2K | 11 | 7 |
| 602 | Genes | 77 | 2.2K | 53 | 57 |
| 603 | Quality Control | 59 | 2.2K | 105 | 91 |
| 604 | animals | 48 | 2.2K | 128 | 48 |
| 605 | Power Electronics | 55 | 2.2K | 155 | 187 |
| 606 | Mineralogy | 39 | 2.2K | 332 | 234 |
| 607 | Databases | 77 | 2.2K | 25 | 42 |
| 608 | Electromagnetism | 63 | 2.2K | 80 | 67 |
| 609 | biological factors | 56 | 2.1K | 200 | 196 |
| 610 | Meteorites | 24 | 2.1K | 312 | 248 |
| 611 | Medical Technology | 71 | 2.1K | 78 | 106 |
| 611 | Neurotoxicology | 47 | 2.1K | 17 | 11 |
| 613 | Parasitic Diseases | 67 | 2.1K | 174 | 206 |
| 614 | Computer Graphics | 36 | 2.1K | 373 | 220 |
| 615 | occupational diseases | 63 | 2.1K | 50 | 59 |
| 616 | Paleontology | 65 | 2.1K | 174 | 112 |
| 617 | sustainability | 41 | 2.1K | 59 | 103 |
| 618 | Marine Pollution | 40 | 2.1K | 154 | 121 |
| 619 | child mental health | 66 | 2.1K | 12 | 7 |
| 620 | Speech | 53 | 2.1K | 115 | 99 |
| 621 | crime | 38 | 2.0K | 97 | 52 |
| 622 | Industrial Safety | 64 | 2.0K | 64 | 81 |
| 623 | Geomorphology | 37 | 2.0K | 268 | 216 |
| 624 | Seaweed | 46 | 2.0K | 34 | 45 |
| 624 | North America | 114 | 2.0K | 25 | 31 |
| 624 | Flow cytometry | 40 | 2.0K | 13 | 8 |
| 627 | drug control | 71 | 2.0K | 22 | 24 |
| 628 | Randomized Controlled Trials | 101 | 2.0K | 48 | 50 |
| 629 | Memory disorders | 41 | 2.0K | 5 | 4 |
| 630 | Inflammation | 31 | 2.0K | 175 | 107 |
| 631 | eugenics | 53 | 2.0K | 27 | 18 |
| 632 | Metals | 23 | 2.0K | 673 | 354 |
| 633 | Ethnology | 125 | 1.9K | 53 | 61 |
| 634 | Wetland conservation | 33 | 1.9K | 17 | 5 |
| 634 | Wetlands | 33 | 1.9K | 17 | 5 |
| 636 | Bryology | 82 | 1.9K | 4 | 1 |
| 637 | Business Ethics | 11 | 1.9K | 441 | 173 |
| 638 | fuel cells | 25 | 1.9K | 355 | 265 |
| 639 | Computer-Aided Design | 83 | 1.9K | 53 | 104 |
| 640 | Teratology | 46 | 1.9K | 16 | 19 |
| 641 | Parenteral nutrition | 76 | 1.9K | 49 | 158 |
| 642 | Mechanics | 33 | 1.9K | 245 | 81 |
| 643 | Immunopharmacology | 21 | 1.9K | 238 | 65 |
| 643 | Endocrine glands | 20 | 1.9K | 31 | 30 |
| 645 | Boundary Value Problems | 59 | 1.9K | 50 | 39 |
| 645 | Antenna Arrays | 59 | 1.9K | 41 | 39 |
| 647 | freshwater biology | 19 | 1.9K | 233 | 76 |
| 648 | Proteomics | 32 | 1.9K | 147 | 118 |
| 649 | Bipolar Disorder | 29 | 1.9K | 49 | 49 |
| 650 | feeding behavior | 61 | 1.9K | 42 | 73 |
| 651 | Bones | 31 | 1.9K | 131 | 127 |
| 652 | Water Microbiology | 42 | 1.9K | 9 | 12 |
| 653 | Group decision making | 92 | 1.9K | 3 | 19 |
| 654 | Law | 62 | 1.9K | 136 | 38 |
| 655 | Religion | 161 | 1.8K | 15 | 9 |
| 656 | Marine Ecology | 59 | 1.8K | 39 | 28 |
| 657 | Coastal zone management | 38 | 1.8K | 35 | 15 |
| 658 | Biomolecules | 19 | 1.8K | 64 | 35 |
| 659 | Autoimmune diseases | 36 | 1.8K | 60 | 55 |
| 660 | Systems Engineering | 54 | 1.8K | 270 | 235 |
| 661 | Global Health | 148 | 1.8K | 17 | 48 |
| 662 | Socialization | 40 | 1.8K | 36 | 49 |
| 663 | analysis | 26 | 1.8K | 60 | 47 |
| 664 | Information Science | 76 | 1.8K | 233 | 390 |
| 665 | Aquatic ecology | 41 | 1.8K | 78 | 39 |
| 666 | Hemostasis | 80 | 1.8K | 21 | 38 |
| 667 | Water quality management | 60 | 1.8K | 162 | 151 |
| 668 | Computer Science | 97 | 1.8K | 64 | 100 |
| 669 | Social policy | 44 | 1.8K | 103 | 47 |
| 670 | Petrology | 25 | 1.8K | 337 | 237 |
| 670 | Maternal health services | 90 | 1.8K | 9 | 19 |
| 670 | Jurisprudence | 59 | 1.8K | 75 | 41 |
| 673 | Experimental Design | 41 | 1.7K | 22 | 35 |
| 674 | Regional Planning | 41 | 1.7K | 290 | 203 |
| 675 | Industrial Policy | 35 | 1.7K | 24 | 20 |
| 676 | Parasitology | 75 | 1.7K | 242 | 286 |
| 676 | Protozoa | 15 | 1.7K | 95 | 35 |
| 678 | Biodegradation | 38 | 1.7K | 25 | 20 |
| 679 | Neurogenetics | 42 | 1.7K | 4 | 2 |
| 679 | Demographic research | 21 | 1.7K | 21 | 12 |
| 681 | urban health | 46 | 1.7K | 17 | 19 |
| 682 | Pharmacokinetics | 117 | 1.7K | 12 | 64 |
| 682 | Radiotherapy | 122 | 1.7K | 7 | 11 |
| 684 | Bioinorganic chemistry | 51 | 1.7K | 217 | 167 |
| 685 | primary prevention | 76 | 1.7K | 6 | 9 |
| 686 | economic conditions | 38 | 1.7K | 54 | 54 |
| 687 | Socioeconomic Factors | 63 | 1.7K | 22 | 41 |
| 688 | Asthma | 55 | 1.7K | 24 | 23 |
| 689 | Analytical Toxicology | 62 | 1.7K | 4 | 5 |
| 690 | heredity | 70 | 1.7K | 21 | 31 |
| 691 | Entomology | 59 | 1.7K | 363 | 268 |
| 692 | Development Economics | 33 | 1.7K | 19 | 26 |
| 693 | actuators | 25 | 1.7K | 687 | 414 |
| 693 | transducers | 25 | 1.7K | 687 | 414 |
| 695 | Economic Thought | 33 | 1.7K | 20 | 48 |
| 696 | Forensic Psychiatry | 38 | 1.7K | 70 | 25 |
| 697 | Bioenergetics | 31 | 1.7K | 141 | 126 |
| 698 | Cybernetics | 45 | 1.6K | 261 | 301 |
| 698 | biomedicine | 114 | 1.6K | 6 | 15 |
| 700 | Electrical Engineering | 230 | 1.6K | 165 | 367 |
| 701 | Political Sociology | 40 | 1.6K | 30 | 36 |
| 702 | Hippocampus | 33 | 1.6K | 19 | 36 |
| 703 | International security | 32 | 1.6K | 16 | 28 |
| 704 | Astrocytes | 11 | 1.6K | 178 | 72 |
| 705 | mosses | 68 | 1.6K | 4 | 1 |
| 705 | liverworts | 68 | 1.6K | 4 | 1 |
| 707 | Forecasting | 32 | 1.6K | 27 | 34 |
| 708 | Genetic epidemiology | 63 | 1.6K | 18 | 23 |
| 709 | Small Business | 11 | 1.6K | 313 | 190 |
| 709 | Fouling | 35 | 1.6K | 9 | 11 |
| 711 | epilepsy | 74 | 1.6K | 49 | 92 |
| 712 | Robotics | 41 | 1.6K | 325 | 251 |
| 713 | Public Choice | 83 | 1.6K | 3 | 19 |
| 714 | Nuclear Energy | 34 | 1.6K | 189 | 73 |
| 715 | Plant diseases | 30 | 1.6K | 502 | 308 |
| 716 | Differential Equations | 15 | 1.6K | 425 | 76 |
| 717 | sex crimes | 56 | 1.6K | 36 | 48 |
| 718 | economic forecasting | 28 | 1.6K | 18 | 27 |
| 719 | Organizational change | 34 | 1.6K | 40 | 38 |
| 720 | collagen | 25 | 1.6K | 25 | 29 |
| 721 | Histocompatibility Testing | 65 | 1.6K | 10 | 19 |
| 721 | biochemical markers | 38 | 1.6K | 25 | 14 |
| 723 | cell membrane | 31 | 1.6K | 118 | 113 |
| 724 | Psychometrics | 25 | 1.6K | 93 | 89 |
| 725 | behavior modification | 25 | 1.6K | 93 | 83 |
| 726 | global environmental change | 46 | 1.5K | 57 | 142 |
| 727 | Pregnancy | 50 | 1.5K | 64 | 58 |
| 728 | Industrial Organization | 31 | 1.5K | 10 | 11 |
| 729 | Humanities | 64 | 1.5K | 55 | 38 |
| 730 | micromechanics | 16 | 1.5K | 177 | 56 |
| 731 | Extracellular matrix | 23 | 1.5K | 23 | 30 |
| 732 | population trends | 15 | 1.5K | 7 | 7 |
| 733 | healthcare disparities | 97 | 1.5K | 7 | 23 |
| 733 | conflict management | 22 | 1.5K | 25 | 21 |
| 735 | Marine resources | 33 | 1.5K | 63 | 30 |
| 736 | Criminal Law | 41 | 1.5K | 10 | 17 |
| 737 | Combustion | 33 | 1.5K | 293 | 209 |
| 738 | Metastasis | 13 | 1.5K | 22 | 22 |
| 739 | Preoperative Care | 33 | 1.5K | 2 | 1 |
| 739 | perioperative care | 33 | 1.5K | 2 | 1 |
| 741 | Pediatric Nursing | 61 | 1.5K | 18 | 15 |
| 742 | Birds | 58 | 1.5K | 157 | 122 |
| 743 | Geobiology | 36 | 1.5K | 36 | 32 |
| 744 | industrial hygiene | 76 | 1.4K | 33 | 28 |
| 744 | Tourism | 10 | 1.4K | 853 | 362 |
| 746 | Energy metabolism | 23 | 1.4K | 155 | 129 |
| 747 | Strategic planning | 14 | 1.4K | 205 | 74 |
| 748 | Psychiatric Epidemiology | 24 | 1.4K | 72 | 53 |
| 749 | Hydrometeorology | 26 | 1.4K | 27 | 35 |
| 750 | Restoration Ecology | 19 | 1.4K | 71 | 31 |
| 750 | System analysis | 82 | 1.4K | 220 | 365 |
| 752 | Atomic spectroscopy | 29 | 1.4K | 250 | 116 |
| 753 | foreign exchange | 14 | 1.4K | 59 | 17 |
| 754 | Quantum Optics | 31 | 1.4K | 151 | 69 |
| 755 | Quantum theory | 31 | 1.4K | 211 | 86 |
| 756 | Otolaryngology | 65 | 1.4K | 54 | 67 |
| 756 | families | 58 | 1.4K | 69 | 87 |
| 758 | Oxidative stress | 30 | 1.4K | 80 | 141 |
| 758 | Appetite | 45 | 1.4K | 50 | 84 |
| 760 | Nutrition physiology | 33 | 1.4K | 76 | 84 |
| 761 | Entrepreneurship | 10 | 1.4K | 423 | 271 |
| 762 | women | 64 | 1.4K | 22 | 18 |
| 763 | Autoantibodies | 28 | 1.4K | 81 | 58 |
| 764 | Culture | 105 | 1.4K | 32 | 62 |
| 765 | Cytoskeleton | 30 | 1.4K | 22 | 20 |
| 766 | Laser Spectroscopy | 27 | 1.4K | 146 | 55 |
| 767 | ethnicity | 52 | 1.3K | 29 | 14 |
| 768 | Nuclear Chemistry | 18 | 1.3K | 347 | 59 |
| 769 | child behavior | 41 | 1.3K | 27 | 50 |
| 770 | Radiochemistry | 17 | 1.3K | 294 | 43 |
| 771 | Public opinion | 58 | 1.3K | 6 | 39 |
| 772 | Sarcopenia | 14 | 1.3K | 62 | 33 |
| 773 | Immunochemistry | 53 | 1.3K | 57 | 88 |
| 774 | Chemical Ecology | 31 | 1.3K | 69 | 81 |
| 774 | pheromones | 31 | 1.3K | 61 | 71 |
| 776 | population policy | 32 | 1.3K | 7 | 4 |
| 777 | Ecological Engineering | 11 | 1.3K | 192 | 45 |
| 778 | Software Engineering | 19 | 1.3K | 324 | 163 |
| 779 | Behavioral Genetics | 22 | 1.3K | 42 | 31 |
| 780 | Ocean Engineering | 25 | 1.3K | 544 | 367 |
| 781 | Telemedicine | 28 | 1.3K | 25 | 21 |
| 782 | risk factors | 46 | 1.3K | 58 | 98 |
| 783 | family violence | 42 | 1.3K | 15 | 33 |
| 784 | Futures | 10 | 1.3K | 83 | 3 |
| 785 | Structure-activity relationship | 11 | 1.3K | 40 | 42 |
| 786 | Physical organic chemistry | 20 | 1.3K | 481 | 162 |
| 787 | Geriatric Medicine | 46 | 1.3K | 1 | 3 |
| 787 | nuclear magnetic resonance spectroscopy | 50 | 1.3K | 52 | 63 |
| 789 | Linguistics | 37 | 1.2K | 293 | 205 |
| 790 | Dietetics | 44 | 1.2K | 80 | 68 |
| 791 | liver | 46 | 1.2K | 11 | 7 |
| 792 | Self | 25 | 1.2K | 4 | 4 |
| 793 | Identity | 24 | 1.2K | 4 | 4 |
| 794 | Classification | 11 | 1.2K | 71 | 41 |
| 795 | Dynamics | 57 | 1.2K | 147 | 131 |
| 796 | atmospheric models | 19 | 1.2K | 204 | 169 |
| 797 | Freshwater invertebrates | 23 | 1.2K | 17 | 20 |
| 798 | Urban Economics | 21 | 1.2K | 59 | 61 |
| 798 | Neurosurgery | 51 | 1.2K | 90 | 199 |
| 800 | Fluid Dynamics | 37 | 1.2K | 203 | 189 |
| 801 | consumers | 18 | 1.2K | 42 | 25 |
| 802 | Functional Genomics | 18 | 1.2K | 45 | 30 |
| 803 | Student Health Services | 46 | 1.2K | 11 | 4 |
| 804 | Structural Equation Modeling | 4 | 1.2K | 96 | 25 |
| 805 | ethanol | 33 | 1.2K | 53 | 41 |
| 806 | Detectors | 32 | 1.2K | 287 | 184 |
| 807 | cell movement | 23 | 1.2K | 23 | 22 |
| 808 | Mass Spectrometry | 42 | 1.1K | 178 | 204 |
| 808 | Speech Disorders | 41 | 1.1K | 201 | 215 |
| 810 | Diagnosis | 64 | 1.1K | 7 | 12 |
| 811 | Energy Storage | 20 | 1.1K | 366 | 261 |
| 812 | Technological Innovations | 49 | 1.1K | 46 | 95 |
| 813 | Personality Disorders | 19 | 1.1K | 48 | 39 |
| 814 | auditory perception | 25 | 1.1K | 60 | 65 |
| 815 | Steroids | 32 | 1.1K | 174 | 152 |
| 816 | Endocrine system | 99 | 1.1K | 18 | 8 |
| 817 | Pediatric Hematology | 54 | 1.1K | 7 | 5 |
| 818 | Quantum electronics | 53 | 1.1K | 240 | 255 |
| 819 | Social Networks | 21 | 1.1K | 33 | 42 |
| 820 | Structuralism | 19 | 1.1K | 31 | 38 |
| 821 | Systems Analysis | 62 | 1.1K | 44 | 92 |
| 822 | Marine Meteorology | 26 | 1.1K | 83 | 89 |
| 822 | biological monitoring | 37 | 1.1K | 15 | 35 |
| 824 | Speech Perception | 24 | 1.1K | 52 | 63 |
| 825 | Enteral nutrition | 42 | 1.1K | 69 | 194 |
| 826 | Asia | 51 | 1.1K | 332 | 295 |
| 827 | Nonprofit organizations | 14 | 1.1K | 65 | 20 |
| 828 | Biosensors | 24 | 1.1K | 322 | 411 |
| 829 | Clinical Pharmacology | 43 | 1.1K | 187 | 221 |
| 830 | Evidence-Based Medicine | 81 | 1.1K | 19 | 49 |
| 831 | particles | 32 | 1.1K | 109 | 80 |
| 832 | Plant Morphology | 13 | 1.1K | 184 | 38 |
| 833 | lasers | 54 | 1.0K | 359 | 379 |
| 834 | Andrology | 22 | 1.0K | 108 | 66 |
| 835 | Nonverbal Communication | 6 | 1.0K | 107 | 16 |
| 836 | Game Theory | 40 | 1.0K | 49 | 67 |
| 837 | Consciousness | 22 | 1.0K | 72 | 56 |
| 838 | Cognitive Behavioral Therapy | 35 | 1.0K | 4 | 5 |
| 839 | energy development | 15 | 1.0K | 194 | 241 |
| 840 | Cosmochemistry | 23 | 1.0K | 213 | 186 |
| 841 | poverty | 43 | 1.0K | 8 | 20 |
| 842 | toxicity testing | 30 | 1.0K | 34 | 33 |
| 843 | Information Technology | 23 | 1.0K | 679 | 547 |
| 844 | city planning | 32 | 1.0K | 342 | 300 |
| 845 | urban population | 19 | 1.0K | 37 | 51 |
| 846 | Plant Genetics | 20 | 1.0K | 172 | 217 |
| 847 | Ethics | 98 | 1.0K | 12 | 81 |
| 848 | Teaching | 47 | 1.0K | 275 | 314 |
| 849 | role | 17 | 997 | 96 | 67 |
| 850 | Archaeology | 25 | 994 | 408 | 240 |
| 851 | Pharmaceutical Technology | 37 | 991 | 260 | 321 |
| 852 | Lipid metabolism | 24 | 987 | 41 | 63 |
| 853 | Pharmacogenomics | 15 | 986 | 38 | 15 |
| 853 | Lipid | 23 | 986 | 45 | 64 |
| 855 | Environmental Economics | 13 | 984 | 68 | 39 |
| 855 | Suicide | 43 | 984 | 39 | 69 |
| 857 | mutation | 49 | 977 | 29 | 108 |
| 858 | Nanomedicine | 13 | 973 | 17 | 11 |
| 858 | Engineering Geology | 34 | 973 | 302 | 336 |
| 858 | mathematical analysis | 96 | 973 | 290 | 443 |
| 861 | Australia | 46 | 969 | 229 | 225 |
| 862 | Microcirculation | 23 | 964 | 61 | 51 |
| 863 | Respiratory system | 36 | 962 | 59 | 91 |
| 864 | Human biology | 39 | 960 | 60 | 61 |
| 865 | Transportation | 24 | 958 | 480 | 419 |
| 866 | Smart Materials | 35 | 957 | 122 | 152 |
| 867 | disease vectors | 35 | 951 | 114 | 141 |
| 868 | motivation | 21 | 946 | 52 | 61 |
| 869 | Ornithology | 30 | 945 | 223 | 133 |
| 870 | Semiconductors | 35 | 943 | 482 | 323 |
| 871 | Forensic Psychology | 23 | 941 | 60 | 30 |
| 872 | Energy Harvesting | 10 | 938 | 189 | 188 |
| 873 | Hazardous waste | 31 | 936 | 89 | 237 |
| 874 | Nuclear non-proliferation | 18 | 918 | 9 | 20 |
| 874 | Androgens | 13 | 918 | 56 | 30 |
| 876 | Green Chemistry | 18 | 916 | 650 | 641 |
| 877 | psychophysics | 25 | 912 | 40 | 24 |
| 878 | mental health policy | 39 | 910 | 19 | 29 |
| 879 | Occupational Therapy | 69 | 903 | 85 | 88 |
| 880 | Waste management | 48 | 902 | 134 | 179 |
| 881 | Parenting | 9 | 895 | 3 | 2 |
| 881 | Child rearing | 9 | 895 | 3 | 2 |
| 883 | hospice care | 50 | 893 | 13 | 21 |
| 883 | Immunogenetics | 56 | 893 | 39 | 105 |
| 885 | Parasites | 39 | 885 | 234 | 291 |
| 886 | Bioelectronics | 19 | 882 | 315 | 412 |
| 887 | sports injuries | 63 | 879 | 12 | 29 |
| 888 | mathematical concepts | 57 | 878 | 3 | 20 |
| 889 | family studies | 8 | 877 | 3 | 2 |
| 889 | Genetic markers | 12 | 877 | 27 | 3 |
| 891 | Religion and Sociology | 29 | 876 | 7 | 2 |
| 892 | Earthquake Engineering | 15 | 875 | 595 | 404 |
| 893 | children | 27 | 874 | 54 | 99 |
| 894 | Computer Engineering | 30 | 873 | 85 | 45 |
| 895 | Body language | 3 | 871 | 103 | 13 |
| 895 | innovation | 5 | 871 | 445 | 251 |
| 897 | government | 36 | 870 | 88 | 112 |
| 898 | landscapes | 6 | 868 | 75 | 9 |
| 898 | cryosphere | 6 | 868 | 240 | 109 |
| 900 | Carbon | 10 | 866 | 661 | 509 |
| 901 | drug evaluation | 47 | 865 | 98 | 205 |
| 902 | Soil Mechanics | 16 | 864 | 431 | 323 |
| 903 | Telecommunication Systems | 13 | 863 | 694 | 213 |
| 903 | Granular materials | 22 | 863 | 80 | 47 |
| 905 | Surface-Active Agents | 11 | 858 | 454 | 232 |
| 905 | Mixed methods research | 5 | 858 | 18 | 8 |
| 905 | Surface properties | 11 | 858 | 493 | 257 |
| 905 | language | 26 | 858 | 177 | 199 |
| 909 | Politics | 38 | 849 | 60 | 89 |
| 910 | Nitric oxide | 18 | 847 | 14 | 14 |
| 911 | Artificial Organs | 65 | 845 | 35 | 67 |
| 912 | technology transfer | 17 | 844 | 18 | 29 |
| 913 | Globalization | 21 | 843 | 90 | 63 |
| 914 | Social Issues | 24 | 832 | 32 | 42 |
| 914 | Estuaries | 24 | 832 | 26 | 46 |
| 916 | Elections | 36 | 831 | 33 | 51 |
| 917 | Special Education | 30 | 829 | 146 | 125 |
| 917 | Computational Mathematics | 18 | 829 | 12 | 14 |
| 919 | Information Systems | 67 | 827 | 60 | 247 |
| 920 | Ventilation | 22 | 825 | 85 | 75 |
| 921 | DNA repair | 31 | 821 | 23 | 53 |
| 922 | planning | 19 | 820 | 141 | 67 |
| 923 | Human Geography | 28 | 813 | 267 | 238 |
| 924 | Blood vessels | 18 | 796 | 43 | 38 |
| 925 | Qualitative Research | 17 | 793 | 134 | 88 |
| 925 | Culture techniques | 33 | 793 | 20 | 32 |
| 927 | air quality management | 23 | 792 | 42 | 64 |
| 927 | weight loss | 38 | 792 | 4 | 7 |
| 929 | Nonlinear mechanics | 31 | 788 | 29 | 34 |
| 930 | vibration | 44 | 785 | 148 | 289 |
| 930 | Harmonic Analysis | 26 | 785 | 14 | 29 |
| 930 | indoor air pollution | 21 | 785 | 47 | 66 |
| 930 | Sick building syndrome | 21 | 785 | 47 | 66 |
| 934 | Electrophoresis | 22 | 783 | 465 | 378 |
| 935 | Psychiatric Nursing | 27 | 781 | 98 | 49 |
| 936 | Lymphoma | 45 | 779 | 17 | 17 |
| 937 | Developmental Neurobiology | 19 | 773 | 84 | 58 |
| 938 | Political Participation | 34 | 772 | 24 | 53 |
| 939 | Africa | 34 | 765 | 254 | 164 |
| 940 | Brachytherapy | 25 | 762 | 33 | 20 |
| 940 | breastfeeding | 41 | 762 | 22 | 46 |
| 942 | at-risk youth | 21 | 757 | 13 | 15 |
| 943 | Breeding | 27 | 756 | 289 | 308 |
| 944 | Social Change | 43 | 754 | 46 | 352 |
| 945 | cytokines | 15 | 751 | 382 | 329 |
| 946 | Embedded Systems | 15 | 747 | 37 | 16 |
| 947 | Land use | 15 | 746 | 365 | 247 |
| 947 | Animal welfare | 24 | 746 | 18 | 30 |
| 949 | Mood Disorders | 7 | 745 | 2 | 2 |
| 950 | Brain damage | 29 | 744 | 42 | 63 |
| 951 | locomotion | 17 | 743 | 152 | 131 |
| 951 | posture | 17 | 743 | 152 | 131 |
| 951 | gait | 17 | 743 | 152 | 131 |
| 951 | walking | 17 | 743 | 152 | 131 |
| 955 | Ecohydrology | 18 | 740 | 33 | 23 |
| 955 | internet | 28 | 740 | 337 | 435 |
| 957 | Obstetric Nursing | 29 | 739 | 31 | 33 |
| 958 | Fluorescence spectroscopy | 17 | 738 | 32 | 18 |
| 959 | election law | 32 | 737 | 18 | 45 |
| 960 | Genetic translocation | 8 | 734 | 70 | 23 |
| 960 | Venture Capital | 3 | 734 | 275 | 191 |
| 960 | plasmids | 8 | 734 | 70 | 23 |
| 963 | Latin America | 80 | 727 | 100 | 93 |
| 964 | Mobile Computing | 18 | 718 | 330 | 257 |
| 964 | negotiation | 5 | 718 | 25 | 4 |
| 966 | Control Theory | 33 | 717 | 451 | 462 |
| 966 | Voting | 29 | 717 | 23 | 46 |
| 968 | Safety management | 25 | 716 | 36 | 20 |
| 969 | Theology | 213 | 713 | 8 | 3 |
| 970 | Geochemical Modeling | 7 | 710 | 128 | 88 |
| 970 | geological modeling | 7 | 710 | 247 | 96 |
| 972 | Intelligence | 18 | 707 | 49 | 64 |
| 973 | Holistic Health | 22 | 706 | 38 | 35 |
| 974 | Vocational guidance | 48 | 704 | 135 | 315 |
| 975 | drug resistance | 9 | 703 | 268 | 116 |
| 976 | Amyotrophic Lateral Sclerosis | 37 | 702 | 14 | 38 |
| 977 | Plant breeding | 22 | 701 | 149 | 132 |
| 978 | Sociobiology | 26 | 699 | 26 | 40 |
| 979 | Biomarkers | 28 | 698 | 20 | 23 |
| 980 | Agricultural Chemistry | 23 | 696 | 656 | 722 |
| 981 | Molecular Imaging | 13 | 695 | 230 | 197 |
| 982 | Economic Geography | 4 | 693 | 285 | 54 |
| 983 | Political Parties | 17 | 692 | 28 | 24 |
| 984 | vitamin C | 19 | 685 | 33 | 66 |
| 984 | vitamin E | 19 | 685 | 33 | 66 |
| 986 | Climate | 18 | 681 | 104 | 122 |
| 987 | Organometallic compounds | 26 | 680 | 351 | 373 |
| 988 | Industrial Engineering | 30 | 677 | 427 | 515 |
| 988 | Statistical Mechanics | 13 | 677 | 272 | 132 |
| 990 | Ergonomics | 51 | 676 | 129 | 211 |
| 990 | Internet of Things | 22 | 676 | 300 | 359 |
| 990 | Race | 12 | 676 | 3 | 3 |
| 993 | Social perception | 16 | 675 | 21 | 34 |
| 994 | Exercise | 27 | 674 | 344 | 352 |
| 995 | Performance | 15 | 673 | 67 | 72 |
| 996 | Pediatric Dermatology | 43 | 665 | 40 | 44 |
| 996 | Fiber Optics | 17 | 665 | 335 | 234 |
| 998 | Neurolinguistics | 12 | 663 | 155 | 137 |
| 999 | Photography | 142 | 659 | 148 | 115 |
| 1000 | Biomass Energy | 16 | 652 | 1002 | 1079 |