| 1 | Medicine | 1,540 | 100.6K | 195 | 156 |
| 2 | Neurology | 1,735 | 93.0K | 83 | 103 |
| 3 | Science | 1,214 | 82.6K | 256 | 329 |
| 4 | Biology | 1,005 | 77.6K | 305 | 336 |
| 5 | Biochemistry | 1,822 | 69.7K | 186 | 218 |
| 6 | Physics | 748 | 63.9K | 538 | 441 |
| 7 | Molecular Biology | 1,286 | 61.7K | 165 | 230 |
| 8 | Hematology | 1,168 | 51.3K | 37 | 42 |
| 9 | Chemistry | 1,154 | 50.2K | 331 | 392 |
| 10 | Human genetics | 203 | 48.3K | 152 | 142 |
| 11 | Research | 1,138 | 46.2K | 184 | 168 |
| 12 | Pharmacology | 1,070 | 37.9K | 77 | 75 |
| 13 | Metabolism | 469 | 37.2K | 70 | 58 |
| 14 | Cytology | 451 | 35.8K | 203 | 211 |
| 15 | Endocrinology | 516 | 35.6K | 89 | 82 |
| 16 | Cell Biology | 387 | 33.9K | 204 | 217 |
| 17 | Natural history | 127 | 33.7K | 413 | 378 |
| 18 | Nutrition | 641 | 31.0K | 53 | 48 |
| 19 | Immunology | 339 | 29.7K | 186 | 133 |
| 20 | Metabolic diseases | 391 | 28.6K | 63 | 68 |
| 21 | Cancer | 511 | 26.4K | 101 | 121 |
| 22 | Biophysics | 799 | 24.4K | 138 | 170 |
| 23 | Liver diseases | 253 | 24.1K | 39 | 36 |
| 24 | Psychiatry | 454 | 23.2K | 164 | 171 |
| 25 | Medical genetics | 411 | 23.1K | 99 | 124 |
| 26 | Nervous system | 516 | 21.7K | 22 | 67 |
| 27 | Neurophysiology | 276 | 21.5K | 175 | 138 |
| 28 | Immunity | 170 | 20.3K | 120 | 127 |
| 29 | Critical Care | 246 | 19.8K | 35 | 35 |
| 30 | Critical Care Medicine | 244 | 19.7K | 37 | 36 |
| 31 | Microbiology | 429 | 18.4K | 368 | 447 |
| 32 | Physiology | 410 | 17.7K | 170 | 165 |
| 33 | Surgery | 138 | 17.1K | 163 | 114 |
| 34 | Clinical Chemistry | 390 | 16.9K | 46 | 46 |
| 35 | Genetics | 203 | 15.5K | 309 | 291 |
| 36 | Leukemia | 135 | 14.9K | 44 | 23 |
| 37 | Pharmaceutical Chemistry | 318 | 14.8K | 139 | 125 |
| 38 | Brain | 296 | 14.4K | 132 | 133 |
| 39 | Neurobiology | 242 | 14.4K | 66 | 85 |
| 40 | Neurochemistry | 289 | 14.2K | 81 | 86 |
| 41 | Oncology | 272 | 14.0K | 58 | 127 |
| 42 | Autoimmunity | 193 | 13.7K | 5 | 6 |
| 43 | Environmental Health | 265 | 13.4K | 296 | 285 |
| 44 | Virology | 199 | 13.4K | 245 | 341 |
| 45 | Psychophysiology | 217 | 13.0K | 206 | 171 |
| 46 | Allergy | 94 | 12.9K | 100 | 84 |
| 47 | Electrochemistry | 254 | 12.9K | 304 | 128 |
| 48 | Pediatrics | 330 | 12.8K | 107 | 130 |
| 49 | Toxicology | 329 | 12.7K | 187 | 162 |
| 50 | Reproduction | 312 | 12.7K | 51 | 44 |
| 51 | Pathology | 230 | 12.2K | 109 | 100 |
| 52 | Ecology | 278 | 12.1K | 487 | 569 |
| 53 | Environment | 185 | 11.9K | 437 | 456 |
| 54 | Diet | 237 | 11.7K | 56 | 84 |
| 55 | Pollution | 232 | 11.3K | 408 | 434 |
| 56 | Obstetrics | 282 | 11.2K | 106 | 82 |
| 57 | Pediatric Neurology | 92 | 10.9K | 77 | 69 |
| 58 | Aging | 282 | 10.6K | 125 | 119 |
| 59 | Cardiovascular system | 99 | 10.2K | 182 | 156 |
| 60 | Immunotherapy | 106 | 10.2K | 123 | 85 |
| 61 | Immune system | 121 | 10.0K | 44 | 109 |
| 62 | Parenteral nutrition | 83 | 9.5K | 55 | 27 |
| 63 | Enteral nutrition | 74 | 9.2K | 29 | 20 |
| 64 | Europe | 464 | 9.0K | 45 | 66 |
| 65 | Hypertension | 128 | 9.0K | 155 | 160 |
| 66 | drug therapy | 285 | 8.7K | 74 | 96 |
| 67 | Immunopathology | 192 | 8.2K | 19 | 18 |
| 68 | Catalysis | 216 | 8.0K | 363 | 419 |
| 69 | fertility | 126 | 7.9K | 52 | 40 |
| 70 | Infertility | 124 | 7.9K | 49 | 38 |
| 71 | Behavior | 166 | 7.9K | 252 | 271 |
| 72 | Mental Disorders | 126 | 7.9K | 280 | 248 |
| 73 | Hemophilia | 218 | 7.7K | 3 | 3 |
| 74 | drug development | 45 | 7.7K | 110 | 60 |
| 75 | Biotechnology | 196 | 7.6K | 529 | 647 |
| 76 | Medical innovations | 30 | 7.6K | 177 | 63 |
| 77 | Diabetes | 117 | 7.4K | 221 | 207 |
| 78 | Public Health | 256 | 7.3K | 356 | 433 |
| 79 | Cardiovascular diseases | 254 | 7.3K | 19 | 26 |
| 80 | Dermatology | 278 | 7.2K | 65 | 94 |
| 81 | Environmental monitoring | 143 | 7.1K | 247 | 227 |
| 82 | Epidemiology | 237 | 7.1K | 223 | 261 |
| 83 | Cell differentiation | 102 | 7.0K | 174 | 233 |
| 84 | Neuropsychology | 167 | 6.9K | 133 | 127 |
| 85 | environmental pollution | 169 | 6.8K | 326 | 350 |
| 86 | Diabetes mellitus | 99 | 6.7K | 229 | 215 |
| 87 | Food | 169 | 6.7K | 140 | 137 |
| 88 | Botany | 177 | 6.6K | 403 | 467 |
| 89 | Mental illness | 126 | 6.5K | 143 | 172 |
| 90 | Embryology | 91 | 6.4K | 176 | 165 |
| 91 | free radicals | 66 | 6.3K | 116 | 65 |
| 92 | Nanotechnology | 182 | 6.0K | 608 | 741 |
| 93 | Genomics | 145 | 6.0K | 242 | 223 |
| 94 | Astrophysics | 123 | 5.7K | 626 | 697 |
| 95 | Autoimmune diseases | 79 | 5.7K | 16 | 8 |
| 96 | Autoantibodies | 77 | 5.6K | 14 | 7 |
| 97 | Cytogenetics | 70 | 5.6K | 178 | 180 |
| 98 | Medical Microbiology | 142 | 5.4K | 152 | 237 |
| 99 | Attention | 170 | 5.3K | 104 | 99 |
| 100 | Thrombosis | 128 | 5.3K | 40 | 51 |
| 101 | Psychology | 169 | 5.3K | 479 | 465 |
| 102 | Memory | 167 | 5.3K | 125 | 152 |
| 103 | Perception | 167 | 5.2K | 133 | 145 |
| 104 | Visual Perception | 165 | 5.2K | 105 | 101 |
| 105 | Stem cells | 92 | 5.1K | 119 | 92 |
| 106 | Agricultural Chemistry | 85 | 5.1K | 264 | 141 |
| 107 | Neurosurgery | 86 | 5.1K | 39 | 35 |
| 108 | Neurotransmitters | 78 | 5.1K | 21 | 10 |
| 109 | Medical Oncology | 127 | 5.0K | 171 | 183 |
| 110 | Surface Chemistry | 143 | 5.0K | 433 | 417 |
| 111 | Economics | 219 | 5.0K | 325 | 367 |
| 112 | Psychopharmacology | 144 | 4.9K | 98 | 168 |
| 113 | Environmental Toxicology | 83 | 4.8K | 181 | 147 |
| 114 | infection | 156 | 4.8K | 45 | 77 |
| 115 | Astronomy | 109 | 4.8K | 581 | 613 |
| 116 | Diagnostic Imaging | 169 | 4.7K | 77 | 112 |
| 117 | Urology | 96 | 4.7K | 241 | 180 |
| 118 | Geriatrics | 146 | 4.6K | 258 | 254 |
| 119 | Materials | 136 | 4.6K | 1075 | 1052 |
| 120 | Biomedical Engineering | 133 | 4.5K | 590 | 561 |
| 121 | drugs | 173 | 4.5K | 58 | 84 |
| 122 | Developmental Biology | 69 | 4.5K | 320 | 314 |
| 123 | Clinical Immunology | 120 | 4.5K | 46 | 34 |
| 124 | human behavior | 60 | 4.4K | 391 | 328 |
| 125 | Vaccines | 149 | 4.3K | 90 | 111 |
| 126 | Condensed Matter | 184 | 4.2K | 471 | 560 |
| 127 | Infections | 123 | 4.2K | 30 | 70 |
| 128 | Nuclear Physics | 113 | 4.2K | 924 | 760 |
| 129 | Antioxidants | 43 | 4.2K | 41 | 30 |
| 130 | Sports Medicine | 133 | 4.1K | 197 | 208 |
| 131 | Machine Learning | 6 | 4.1K | 212 | 23 |
| 132 | Statistical physics | 109 | 4.0K | 561 | 453 |
| 133 | Parasitic Diseases | 105 | 4.0K | 108 | 117 |
| 134 | Obesity | 104 | 4.0K | 204 | 226 |
| 135 | Geriatric Oncology | 92 | 3.8K | 9 | 11 |
| 136 | Spectrum analysis | 109 | 3.8K | 688 | 752 |
| 137 | Health | 102 | 3.8K | 186 | 165 |
| 138 | Transplantation | 78 | 3.8K | 147 | 155 |
| 139 | Emergency Medicine | 277 | 3.8K | 33 | 71 |
| 140 | cell physiology | 54 | 3.7K | 222 | 204 |
| 141 | arthritis | 80 | 3.7K | 149 | 183 |
| 142 | Nuclear Medicine | 156 | 3.7K | 40 | 78 |
| 143 | Hormones | 83 | 3.6K | 84 | 93 |
| 144 | Solid State Physics | 159 | 3.6K | 600 | 629 |
| 145 | Genetic engineering | 41 | 3.6K | 415 | 202 |
| 146 | Analytical Chemistry | 119 | 3.6K | 636 | 670 |
| 147 | Respiration | 103 | 3.6K | 116 | 147 |
| 148 | Therapeutics | 58 | 3.6K | 273 | 189 |
| 149 | Cerebral cortex | 72 | 3.6K | 86 | 117 |
| 150 | Cell metabolism | 20 | 3.5K | 145 | 148 |
| 151 | Homeostasis | 19 | 3.5K | 108 | 143 |
| 152 | Molecular Imaging | 122 | 3.4K | 23 | 65 |
| 153 | Cell death | 77 | 3.4K | 115 | 212 |
| 154 | Neurons | 19 | 3.4K | 223 | 252 |
| 155 | Plants | 79 | 3.4K | 238 | 327 |
| 156 | Colloids | 94 | 3.4K | 640 | 628 |
| 157 | rare diseases | 71 | 3.3K | 14 | 12 |
| 158 | Animal Behavior | 71 | 3.3K | 280 | 296 |
| 159 | Emergency Medical Services | 263 | 3.3K | 3 | 6 |
| 160 | Muscles | 70 | 3.3K | 63 | 56 |
| 161 | Chemotherapy | 113 | 3.3K | 73 | 76 |
| 162 | food technology | 115 | 3.3K | 205 | 237 |
| 163 | animals | 223 | 3.2K | 11 | 27 |
| 164 | Electrochemical Analysis | 97 | 3.2K | 76 | 82 |
| 165 | Geology | 61 | 3.2K | 705 | 436 |
| 166 | Child | 134 | 3.2K | 181 | 219 |
| 167 | Biochemical Engineering | 27 | 3.1K | 1211 | 800 |
| 168 | Microbial Ecology | 61 | 3.1K | 378 | 448 |
| 169 | Bioengineering | 67 | 3.1K | 810 | 885 |
| 170 | cytokines | 31 | 3.0K | 214 | 53 |
| 171 | risk factors | 120 | 3.0K | 10 | 26 |
| 172 | Clinical Pharmacology | 98 | 3.0K | 76 | 74 |
| 173 | Signal Transduction | 55 | 3.0K | 148 | 170 |
| 174 | Schizophrenia | 94 | 3.0K | 107 | 147 |
| 175 | Cognition | 60 | 2.9K | 283 | 243 |
| 176 | vascular diseases | 39 | 2.9K | 113 | 78 |
| 177 | Polymers | 105 | 2.9K | 835 | 820 |
| 178 | Ethology | 54 | 2.9K | 262 | 269 |
| 179 | Histology | 62 | 2.9K | 262 | 218 |
| 180 | Biocompatible Materials | 79 | 2.8K | 756 | 891 |
| 181 | Genetic regulation | 24 | 2.8K | 307 | 207 |
| 182 | Bioorganic chemistry | 122 | 2.8K | 235 | 372 |
| 183 | Neuromuscular diseases | 60 | 2.8K | 58 | 49 |
| 184 | diseases | 7 | 2.8K | 158 | 144 |
| 184 | Disease | 7 | 2.8K | 164 | 142 |
| 186 | gene therapy | 47 | 2.7K | 143 | 131 |
| 187 | Biodiversity conservation | 27 | 2.7K | 470 | 445 |
| 188 | Rheumatology | 52 | 2.7K | 172 | 179 |
| 189 | Alzheimer's disease | 88 | 2.6K | 175 | 144 |
| 190 | Oncogenes | 47 | 2.6K | 219 | 287 |
| 191 | Inflammation | 39 | 2.6K | 115 | 63 |
| 192 | United Kingdom | 63 | 2.5K | 211 | 240 |
| 193 | Ophthalmology | 107 | 2.5K | 192 | 273 |
| 194 | Environmental Microbiology | 42 | 2.5K | 177 | 196 |
| 195 | nanoscience | 73 | 2.5K | 488 | 640 |
| 196 | Hemostasis | 97 | 2.5K | 16 | 20 |
| 197 | Nanostructured Materials | 105 | 2.5K | 450 | 632 |
| 198 | Adolescent | 82 | 2.4K | 215 | 214 |
| 199 | environmental protection | 49 | 2.4K | 648 | 511 |
| 200 | livestock | 210 | 2.4K | 5 | 8 |
| 201 | Environmental Policy | 46 | 2.4K | 651 | 584 |
| 201 | plant molecular biology | 41 | 2.4K | 326 | 394 |
| 203 | vitamin C | 21 | 2.4K | 29 | 7 |
| 203 | vitamin E | 21 | 2.4K | 29 | 7 |
| 205 | Microscopy | 48 | 2.4K | 151 | 83 |
| 206 | Climate change | 8 | 2.4K | 616 | 414 |
| 206 | Eutrophication | 8 | 2.4K | 597 | 410 |
| 208 | Medical Physics | 55 | 2.4K | 376 | 304 |
| 209 | Diagnostic microbiology | 29 | 2.4K | 311 | 288 |
| 210 | gene mapping | 43 | 2.3K | 386 | 351 |
| 211 | Environmental Engineering | 46 | 2.3K | 798 | 694 |
| 212 | Plant cells | 31 | 2.3K | 331 | 389 |
| 213 | cloning | 13 | 2.3K | 242 | 97 |
| 214 | nucleic acids | 42 | 2.3K | 414 | 513 |
| 215 | personality | 9 | 2.3K | 785 | 273 |
| 216 | Oxidation-reduction | 33 | 2.3K | 104 | 122 |
| 217 | Molecular Genetics | 52 | 2.3K | 300 | 357 |
| 218 | Mathematics | 135 | 2.3K | 967 | 728 |
| 219 | Lipids | 54 | 2.2K | 136 | 183 |
| 219 | United States | 78 | 2.2K | 809 | 771 |
| 221 | Materials Science | 69 | 2.2K | 1063 | 1083 |
| 222 | Environmental Management | 45 | 2.2K | 560 | 501 |
| 223 | environmental exposure | 57 | 2.2K | 180 | 162 |
| 224 | Geophysics | 78 | 2.2K | 760 | 803 |
| 225 | Sports | 79 | 2.2K | 262 | 274 |
| 226 | Chromosome mapping | 38 | 2.2K | 361 | 280 |
| 227 | Anatomy | 57 | 2.2K | 321 | 328 |
| 228 | Dementia | 71 | 2.1K | 212 | 144 |
| 229 | Breeding | 53 | 2.1K | 168 | 140 |
| 230 | pain | 48 | 2.1K | 217 | 244 |
| 231 | eye | 7 | 2.1K | 94 | 45 |
| 232 | Sociology | 94 | 2.1K | 334 | 414 |
| 233 | Retina | 6 | 2.0K | 99 | 47 |
| 234 | cell interaction | 31 | 2.0K | 158 | 69 |
| 235 | Parasitology | 65 | 2.0K | 310 | 254 |
| 236 | occupational diseases | 43 | 2.0K | 91 | 73 |
| 237 | Antibacterial agents | 57 | 2.0K | 22 | 26 |
| 238 | prostaglandins | 64 | 2.0K | 14 | 17 |
| 239 | Animal breeding | 63 | 1.9K | 77 | 59 |
| 240 | Membranes | 59 | 1.9K | 277 | 375 |
| 241 | Astrocytes | 21 | 1.9K | 85 | 62 |
| 242 | Screening | 76 | 1.9K | 2 | 2 |
| 243 | rehabilitation | 60 | 1.8K | 310 | 357 |
| 244 | blood transfusion | 54 | 1.8K | 98 | 75 |
| 245 | drug evaluation | 91 | 1.8K | 37 | 64 |
| 246 | Bacteriology | 49 | 1.8K | 372 | 483 |
| 247 | soil microbiology | 26 | 1.7K | 410 | 374 |
| 248 | Radiobiology | 47 | 1.7K | 307 | 311 |
| 249 | Molecular structure | 33 | 1.7K | 546 | 408 |
| 250 | Child Development | 67 | 1.7K | 289 | 376 |
| 251 | Steroids | 58 | 1.7K | 98 | 100 |
| 252 | Physical organic chemistry | 66 | 1.7K | 96 | 111 |
| 253 | Green Chemistry | 34 | 1.7K | 408 | 420 |
| 253 | Cell communication | 19 | 1.7K | 79 | 21 |
| 255 | Neuropsychiatry | 54 | 1.7K | 72 | 90 |
| 256 | Marine Biology | 58 | 1.7K | 520 | 537 |
| 257 | Clinical Biochemistry | 63 | 1.7K | 96 | 142 |
| 257 | Nonlinear Dynamics | 54 | 1.7K | 422 | 393 |
| 259 | economic policy | 62 | 1.6K | 309 | 231 |
| 260 | Exercise | 57 | 1.6K | 133 | 129 |
| 261 | Educational Psychology | 24 | 1.6K | 421 | 250 |
| 262 | embryonic development | 25 | 1.6K | 43 | 22 |
| 263 | cell adhesion molecules | 16 | 1.6K | 6 | 6 |
| 264 | Engineering | 49 | 1.6K | 929 | 610 |
| 265 | Mass Spectrometry | 34 | 1.6K | 246 | 169 |
| 266 | Light | 8 | 1.6K | 564 | 317 |
| 267 | Environmental Law | 21 | 1.6K | 285 | 266 |
| 268 | Plant physiology | 55 | 1.6K | 383 | 587 |
| 269 | Water pollution | 40 | 1.6K | 691 | 698 |
| 270 | Electronics | 47 | 1.6K | 940 | 741 |
| 271 | Food preferences | 39 | 1.5K | 25 | 31 |
| 272 | Photonics | 11 | 1.5K | 1142 | 496 |
| 273 | polymerization | 46 | 1.5K | 1158 | 970 |
| 274 | Carcinogenesis | 54 | 1.5K | 89 | 167 |
| 275 | Genetic therapy | 37 | 1.5K | 203 | 212 |
| 275 | genome | 26 | 1.5K | 424 | 500 |
| 277 | Virulence | 18 | 1.5K | 418 | 384 |
| 278 | Bioinformatics | 46 | 1.5K | 387 | 510 |
| 279 | Technology | 47 | 1.5K | 929 | 777 |
| 280 | Physical fitness | 90 | 1.5K | 24 | 145 |
| 281 | Cognitive neuroscience | 16 | 1.5K | 392 | 304 |
| 282 | Food Microbiology | 46 | 1.5K | 151 | 234 |
| 283 | Chemical Engineering | 34 | 1.4K | 1674 | 1472 |
| 284 | epilepsy | 44 | 1.4K | 119 | 119 |
| 285 | Respiratory system | 31 | 1.4K | 80 | 49 |
| 285 | Child psychology | 12 | 1.4K | 667 | 391 |
| 287 | Pediatric Dermatology | 53 | 1.4K | 34 | 22 |
| 288 | Industrial Microbiology | 33 | 1.4K | 382 | 423 |
| 289 | Gene expression regulation | 28 | 1.4K | 188 | 248 |
| 290 | Occupational Health | 43 | 1.4K | 116 | 103 |
| 291 | Agriculture | 32 | 1.4K | 456 | 369 |
| 292 | Food additives | 46 | 1.4K | 128 | 202 |
| 293 | Health Policy | 49 | 1.4K | 391 | 416 |
| 294 | Molecular Pharmacology | 30 | 1.4K | 127 | 143 |
| 295 | Bone diseases | 14 | 1.4K | 127 | 105 |
| 296 | Long-Term Care | 35 | 1.4K | 75 | 104 |
| 296 | Long-term care facilities | 35 | 1.4K | 74 | 104 |
| 298 | Social Sciences | 73 | 1.3K | 443 | 456 |
| 299 | Adolescent Medicine | 11 | 1.3K | 238 | 171 |
| 300 | Optics | 56 | 1.3K | 1232 | 980 |
| 301 | Parasites | 42 | 1.3K | 229 | 216 |
| 302 | Tropical Medicine | 84 | 1.3K | 105 | 198 |
| 303 | Cognitive Science | 20 | 1.3K | 450 | 337 |
| 304 | Analytical Biochemistry | 38 | 1.3K | 290 | 283 |
| 305 | Drug design | 80 | 1.3K | 54 | 247 |
| 306 | Bioinorganic chemistry | 26 | 1.3K | 365 | 181 |
| 307 | Evolution | 40 | 1.3K | 413 | 574 |
| 308 | Sleep Disorders | 47 | 1.3K | 285 | 311 |
| 308 | glycoproteins | 40 | 1.3K | 31 | 57 |
| 308 | Glycoconjugates | 40 | 1.3K | 31 | 57 |
| 308 | glycolipids | 40 | 1.3K | 31 | 57 |
| 308 | Sleep | 47 | 1.3K | 290 | 320 |
| 313 | calcification | 30 | 1.3K | 72 | 89 |
| 314 | Developmental Immunology | 20 | 1.3K | 111 | 56 |
| 315 | mutagens | 35 | 1.3K | 127 | 207 |
| 316 | Electrophysiology | 44 | 1.2K | 162 | 128 |
| 317 | Solid State Chemistry | 32 | 1.2K | 735 | 435 |
| 317 | Growth | 23 | 1.2K | 363 | 428 |
| 319 | Electrophoresis | 35 | 1.2K | 301 | 244 |
| 320 | Animal genetics | 45 | 1.2K | 87 | 93 |
| 321 | viruses | 24 | 1.2K | 506 | 537 |
| 322 | Social Psychology | 31 | 1.2K | 554 | 552 |
| 323 | Organic Chemistry | 61 | 1.2K | 697 | 874 |
| 324 | Environmental pollutants | 42 | 1.2K | 390 | 464 |
| 324 | biological factors | 61 | 1.2K | 164 | 349 |
| 326 | disease outbreaks | 34 | 1.2K | 60 | 82 |
| 326 | Epidemics | 34 | 1.2K | 59 | 82 |
| 328 | Host-parasite interactions | 17 | 1.2K | 450 | 501 |
| 329 | Reproductive health | 28 | 1.2K | 138 | 85 |
| 329 | Endocrine glands | 7 | 1.2K | 133 | 69 |
| 331 | Chronobiology | 26 | 1.2K | 49 | 32 |
| 331 | Circadian rhythms | 26 | 1.2K | 33 | 30 |
| 331 | biological clocks | 26 | 1.2K | 49 | 32 |
| 331 | circadian rhythm | 26 | 1.2K | 49 | 32 |
| 331 | biological rhythms | 26 | 1.2K | 49 | 31 |
| 336 | Europa | 34 | 1.2K | 41 | 36 |
| 337 | biological evolution | 44 | 1.2K | 438 | 713 |
| 338 | Orthopedics | 63 | 1.2K | 252 | 352 |
| 339 | Meteorology | 25 | 1.2K | 743 | 754 |
| 339 | Optical materials | 41 | 1.2K | 720 | 874 |
| 341 | Communication | 11 | 1.2K | 993 | 476 |
| 342 | Digestive system diseases | 55 | 1.2K | 113 | 155 |
| 343 | Sexual health | 68 | 1.2K | 48 | 98 |
| 343 | biopolymers | 38 | 1.2K | 248 | 254 |
| 345 | Quality of life | 38 | 1.1K | 211 | 294 |
| 346 | Metastasis | 4 | 1.1K | 140 | 43 |
| 347 | Statistics | 64 | 1.1K | 498 | 564 |
| 348 | Amyotrophic Lateral Sclerosis | 31 | 1.1K | 24 | 30 |
| 349 | Biological Systems | 43 | 1.1K | 18 | 35 |
| 350 | Economic History | 64 | 1.1K | 507 | 574 |
| 351 | Artificial Intelligence | 73 | 1.1K | 604 | 1026 |
| 351 | Soft Condensed Matter | 38 | 1.1K | 214 | 245 |
| 353 | Antiviral agents | 48 | 1.1K | 11 | 24 |
| 354 | Plant diseases | 30 | 1.1K | 565 | 443 |
| 355 | Plant Ecology | 45 | 1.1K | 314 | 526 |
| 356 | pollutants | 33 | 1.1K | 379 | 436 |
| 357 | Kidney diseases | 34 | 1.1K | 167 | 175 |
| 358 | Pharmaceutical Technology | 52 | 1.1K | 176 | 305 |
| 359 | biochemical markers | 30 | 1.1K | 39 | 21 |
| 360 | School Psychology | 1 | 1.1K | 747 | 84 |
| 360 | school psychologists | 1 | 1.1K | 345 | 42 |
| 362 | Geochemistry | 40 | 1.1K | 552 | 663 |
| 363 | Zoology | 40 | 1.0K | 591 | 498 |
| 364 | Horticulture | 17 | 1.0K | 242 | 51 |
| 365 | Neonatology | 37 | 1.0K | 44 | 65 |
| 366 | Biomass Energy | 22 | 1.0K | 831 | 854 |
| 367 | Organometallic chemistry | 20 | 1.0K | 700 | 209 |
| 367 | Aerosols | 10 | 1.0K | 284 | 107 |
| 369 | Australia | 46 | 1.0K | 282 | 264 |
| 370 | Gerontology | 42 | 1.0K | 395 | 360 |
| 370 | Cytokine | 8 | 1.0K | 187 | 68 |
| 372 | Immunogenetics | 56 | 1.0K | 47 | 107 |
| 373 | Growth factors | 8 | 1.0K | 106 | 66 |
| 374 | Nanostructures | 9 | 1.0K | 1196 | 587 |
| 375 | carcinogens | 28 | 1.0K | 185 | 245 |
| 376 | Radiology | 36 | 1.0K | 326 | 235 |
| 377 | Energy Policy | 19 | 997 | 1060 | 940 |
| 378 | Proteomics | 23 | 989 | 271 | 287 |
| 379 | Oxidative stress | 20 | 981 | 155 | 232 |
| 380 | Nutrition physiology | 22 | 978 | 146 | 145 |
| 380 | industrial relations | 43 | 978 | 111 | 106 |
| 382 | Psychosomatic Medicine | 15 | 971 | 282 | 213 |
| 383 | Mathematical Physics | 39 | 968 | 761 | 642 |
| 384 | Paleoecology | 16 | 957 | 428 | 281 |
| 385 | Cerebellum | 14 | 956 | 62 | 45 |
| 385 | Cerebellar ataxia | 14 | 956 | 62 | 45 |
| 387 | disease vectors | 27 | 948 | 180 | 156 |
| 388 | food contamination | 47 | 942 | 68 | 77 |
| 389 | Computer-Aided Design | 8 | 941 | 715 | 206 |
| 389 | Bioremediation | 14 | 941 | 172 | 76 |
| 389 | aerosol | 7 | 941 | 251 | 62 |
| 392 | Pituitary gland | 28 | 938 | 18 | 18 |
| 393 | Neurogenetics | 21 | 935 | 27 | 18 |
| 394 | Computational Biology | 44 | 931 | 505 | 806 |
| 395 | Andrology | 42 | 926 | 45 | 72 |
| 395 | DNA methylation | 17 | 926 | 36 | 32 |
| 397 | Bipolar Disorder | 19 | 908 | 101 | 100 |
| 398 | voice | 35 | 907 | 44 | 43 |
| 399 | Paleoclimatology | 14 | 906 | 509 | 334 |
| 400 | Genetic disorders | 38 | 903 | 70 | 104 |
| 400 | scientific societies | 38 | 903 | 96 | 136 |
| 402 | Physical Chemistry | 40 | 896 | 528 | 728 |
| 403 | enzymes | 32 | 889 | 323 | 404 |
| 404 | Nephrology | 27 | 887 | 131 | 161 |
| 404 | Gastrointestinal diseases | 36 | 887 | 38 | 46 |
| 406 | Animal Nutrition | 32 | 886 | 99 | 90 |
| 407 | Renewable Energy Sources | 13 | 883 | 1320 | 1243 |
| 408 | Medical Laboratory Science | 34 | 881 | 517 | 777 |
| 409 | Dentistry | 70 | 874 | 56 | 85 |
| 410 | dietary supplements | 20 | 873 | 149 | 111 |
| 411 | Music | 37 | 870 | 109 | 85 |
| 412 | management | 35 | 863 | 905 | 1147 |
| 412 | energy resources | 16 | 863 | 506 | 577 |
| 414 | Molecules | 21 | 860 | 516 | 351 |
| 415 | Chromatographic analysis | 31 | 859 | 436 | 327 |
| 416 | Composite Materials | 16 | 853 | 1273 | 1024 |
| 417 | Biodegradation | 22 | 851 | 71 | 82 |
| 418 | Water | 14 | 843 | 1212 | 1047 |
| 419 | Developmental Genetics | 9 | 841 | 295 | 294 |
| 419 | Chronic diseases | 18 | 841 | 215 | 282 |
| 421 | Earthquake Engineering | 27 | 837 | 420 | 410 |
| 422 | Paleogeography | 12 | 834 | 460 | 283 |
| 423 | Radiation | 41 | 832 | 422 | 452 |
| 424 | Quality Control | 35 | 825 | 256 | 337 |
| 425 | older people | 39 | 824 | 336 | 258 |
| 426 | Orthopedic Surgery | 42 | 823 | 93 | 147 |
| 427 | Developing countries | 34 | 820 | 475 | 538 |
| 428 | Geodynamics | 24 | 819 | 259 | 287 |
| 429 | Jurisprudence | 44 | 817 | 105 | 130 |
| 430 | alcoholism | 29 | 816 | 413 | 446 |
| 431 | Public Policy | 38 | 811 | 339 | 427 |
| 432 | Neuroimmunology | 29 | 808 | 118 | 219 |
| 433 | Biopharmaceutics | 30 | 806 | 187 | 273 |
| 433 | Speech Disorders | 23 | 806 | 310 | 272 |
| 435 | Rock Mechanics | 16 | 805 | 346 | 260 |
| 435 | Chromatography | 26 | 805 | 398 | 295 |
| 437 | proteins | 44 | 802 | 415 | 649 |
| 438 | Pharmacy | 44 | 801 | 423 | 614 |
| 438 | Synaptic Transmission | 25 | 801 | 76 | 86 |
| 440 | Personality Disorders | 4 | 779 | 221 | 58 |
| 441 | Psychoneuroimmunology | 26 | 776 | 105 | 202 |
| 441 | natural products | 40 | 776 | 290 | 401 |
| 441 | Antigens | 51 | 776 | 83 | 228 |
| 444 | Mental Health | 31 | 771 | 369 | 357 |
| 445 | Pharmacogenetics | 26 | 765 | 218 | 295 |
| 446 | Histocompatibility Testing | 24 | 763 | 69 | 59 |
| 447 | Oligosaccharides | 33 | 762 | 8 | 17 |
| 448 | Thorax | 13 | 761 | 171 | 132 |
| 449 | Eating Disorders | 33 | 759 | 161 | 241 |
| 449 | Feeding and Eating Disorders | 33 | 759 | 151 | 225 |
| 451 | Image Processing | 41 | 756 | 522 | 788 |
| 452 | Frontotemporal lobar degeneration | 20 | 741 | 31 | 29 |
| 453 | Proteome | 18 | 739 | 410 | 465 |
| 454 | Drug delivery systems | 24 | 734 | 408 | 576 |
| 455 | Philosophy | 68 | 733 | 237 | 214 |
| 456 | cardiac catheterization | 50 | 727 | 103 | 159 |
| 457 | food handling | 23 | 725 | 160 | 184 |
| 458 | Ergonomics | 21 | 722 | 318 | 214 |
| 459 | Oral Medicine | 61 | 721 | 24 | 40 |
| 459 | Magnetic Materials | 25 | 721 | 489 | 462 |
| 461 | Land use | 12 | 719 | 444 | 246 |
| 462 | Bacterial infections | 24 | 718 | 145 | 376 |
| 463 | Hemodynamics | 11 | 707 | 302 | 286 |
| 464 | Carbohydrates | 11 | 702 | 148 | 125 |
| 465 | Cybernetics | 17 | 699 | 599 | 556 |
| 466 | race relations | 22 | 697 | 115 | 87 |
| 467 | Superconductors | 75 | 695 | 141 | 216 |
| 468 | Genetic Toxicology | 11 | 691 | 145 | 114 |
| 468 | Microorganisms | 11 | 691 | 476 | 434 |
| 470 | Nuclear Engineering | 60 | 688 | 309 | 356 |
| 470 | Engineering Geology | 18 | 688 | 519 | 428 |
| 470 | X-rays | 18 | 688 | 151 | 55 |
| 473 | Medical Technology | 37 | 677 | 232 | 415 |
| 473 | Reproductive toxicology | 19 | 677 | 64 | 95 |
| 475 | Organometallic compounds | 16 | 674 | 468 | 328 |
| 476 | plant communities | 21 | 667 | 326 | 475 |
| 477 | Health Education | 31 | 663 | 463 | 497 |
| 477 | locomotion | 17 | 663 | 165 | 160 |
| 477 | posture | 17 | 663 | 165 | 160 |
| 477 | gait | 17 | 663 | 165 | 160 |
| 477 | world | 12 | 663 | 283 | 287 |
| 477 | walking | 17 | 663 | 165 | 160 |
| 483 | Regional Planning | 30 | 662 | 358 | 435 |
| 484 | Soil Mechanics | 16 | 658 | 448 | 379 |
| 484 | Environmental Chemistry | 16 | 658 | 821 | 977 |
| 486 | Immunochemistry | 17 | 656 | 290 | 205 |
| 487 | Social policy | 27 | 653 | 181 | 162 |
| 488 | Information Systems | 21 | 651 | 337 | 330 |
| 488 | Psycholinguistics | 18 | 651 | 311 | 318 |
| 490 | Clinical Psychology | 10 | 649 | 623 | 500 |
| 491 | Neurolinguistics | 16 | 636 | 116 | 147 |
| 492 | histological techniques | 22 | 628 | 140 | 262 |
| 493 | Neuroendocrinology | 9 | 623 | 29 | 66 |
| 493 | Speech | 13 | 623 | 398 | 324 |
| 493 | Entomology | 33 | 623 | 609 | 602 |
| 496 | Earth Sciences | 19 | 619 | 1365 | 1219 |
| 497 | Information Theory | 10 | 610 | 758 | 442 |
| 498 | Evolutionary Genetics | 23 | 603 | 66 | 104 |
| 498 | Molecular Epidemiology | 23 | 603 | 66 | 104 |
| 500 | Atherosclerosis | 27 | 598 | 14 | 27 |
| 501 | ecosystem | 18 | 597 | 451 | 579 |
| 502 | mutation | 13 | 592 | 208 | 211 |
| 503 | Computer Graphics | 15 | 591 | 762 | 583 |
| 504 | Neurotoxicology | 9 | 590 | 248 | 141 |
| 504 | mycoses | 8 | 590 | 446 | 429 |
| 506 | transgenic organisms | 2 | 588 | 380 | 45 |
| 507 | animal diseases | 27 | 584 | 78 | 85 |
| 508 | Neuropharmacology | 28 | 582 | 70 | 159 |
| 508 | language | 11 | 582 | 361 | 279 |
| 510 | Genetic markers | 17 | 577 | 15 | 7 |
| 511 | Neurovirology | 25 | 574 | 34 | 60 |
| 512 | Bones | 17 | 572 | 269 | 371 |
| 513 | Small Business | 5 | 568 | 536 | 396 |
| 514 | Research Design | 10 | 567 | 590 | 414 |
| 515 | Lipid | 12 | 561 | 122 | 140 |
| 516 | Metallurgy | 19 | 557 | 954 | 842 |
| 517 | Linguistics | 16 | 551 | 470 | 329 |
| 518 | Genetically modified organisms | 1 | 540 | 46 | 2 |
| 518 | safety | 1 | 540 | 193 | 3 |
| 520 | miniaturization | 20 | 537 | 679 | 980 |
| 521 | Political Science | 48 | 536 | 326 | 450 |
| 522 | Structural Engineering | 17 | 533 | 683 | 569 |
| 522 | Ocean Engineering | 17 | 533 | 733 | 652 |
| 522 | Chromosomes | 26 | 533 | 201 | 392 |
| 525 | Physical Therapy | 24 | 529 | 384 | 542 |
| 526 | Histochemistry | 20 | 527 | 298 | 312 |
| 527 | Food Policy | 9 | 525 | 138 | 112 |
| 527 | agricultural policy | 9 | 525 | 84 | 89 |
| 529 | Building Materials | 9 | 524 | 1023 | 856 |
| 530 | Photochemistry | 22 | 523 | 470 | 585 |
| 531 | Asthma | 23 | 521 | 118 | 136 |
| 532 | Biometrics | 19 | 515 | 378 | 366 |
| 533 | Molecular ecology | 16 | 512 | 417 | 584 |
| 534 | Autism | 11 | 511 | 314 | 295 |
| 535 | Geomorphology | 16 | 509 | 564 | 617 |
| 535 | Immunopharmacology | 12 | 509 | 470 | 335 |
| 537 | Soil Science | 17 | 505 | 740 | 782 |
| 537 | Economic Development | 20 | 505 | 480 | 699 |
| 537 | Population Genetics | 15 | 505 | 500 | 579 |
| 537 | income distribution | 6 | 505 | 51 | 45 |
| 537 | Wildlife conservation | 9 | 505 | 604 | 562 |
| 537 | poverty | 6 | 505 | 201 | 61 |
| 543 | Drug delivery devices | 9 | 503 | 55 | 63 |
| 543 | Oligosaccharide | 7 | 503 | 156 | 126 |
| 545 | Randomized Controlled Trials | 35 | 501 | 186 | 238 |
| 545 | Sarcopenia | 10 | 501 | 126 | 168 |
| 547 | Synchrotron Radiation | 21 | 498 | 90 | 84 |
| 547 | Biodiversity | 21 | 498 | 691 | 939 |
| 549 | Entropy | 15 | 489 | 310 | 127 |
| 550 | Human biology | 5 | 486 | 455 | 131 |
| 551 | Veterinary Pathology | 23 | 484 | 48 | 39 |
| 552 | Systems Biology | 24 | 483 | 443 | 574 |
| 552 | amino acids | 18 | 483 | 79 | 141 |
| 554 | brain mapping | 18 | 480 | 208 | 352 |
| 555 | breastfeeding | 15 | 479 | 124 | 98 |
| 556 | Lipid metabolism | 11 | 478 | 131 | 158 |
| 556 | Minerals | 17 | 478 | 157 | 147 |
| 558 | pharmaceutical industry | 21 | 473 | 76 | 91 |
| 559 | behavioral medicine | 19 | 471 | 410 | 626 |
| 560 | Developmental Neurobiology | 16 | 469 | 117 | 118 |
| 561 | Econometrics | 33 | 466 | 305 | 487 |
| 562 | Water Microbiology | 10 | 463 | 133 | 94 |
| 562 | Maps | 28 | 463 | 8 | 10 |
| 562 | Fouling | 10 | 463 | 52 | 62 |
| 565 | drug addiction | 9 | 461 | 621 | 528 |
| 566 | Hematopoietic stem cell transplantation | 13 | 459 | 107 | 164 |
| 567 | Palliative Care | 11 | 453 | 394 | 250 |
| 567 | Medical Ethics | 24 | 453 | 279 | 239 |
| 569 | Enzyme inhibitors | 16 | 450 | 64 | 69 |
| 570 | sanitation | 8 | 446 | 986 | 1098 |
| 571 | Pharmacognosy | 10 | 445 | 998 | 831 |
| 571 | Mycology | 15 | 445 | 696 | 724 |
| 573 | Climatology | 18 | 444 | 669 | 838 |
| 573 | Lung Transplantation | 21 | 444 | 136 | 206 |
| 573 | Heart transplantation | 21 | 444 | 136 | 206 |
| 576 | Cellular senescence | 7 | 439 | 102 | 181 |
| 577 | Nutritional support | 7 | 438 | 74 | 59 |
| 578 | Molecular Spectroscopy | 12 | 437 | 844 | 599 |
| 579 | Longevity | 11 | 436 | 31 | 30 |
| 580 | Marine Pollution | 13 | 435 | 528 | 569 |
| 581 | Molecular evolution | 22 | 434 | 437 | 767 |
| 581 | Forest genetics | 7 | 434 | 139 | 47 |
| 583 | Social Change | 13 | 433 | 351 | 522 |
| 583 | medical education | 22 | 433 | 560 | 607 |
| 585 | Computer Vision | 10 | 429 | 594 | 601 |
| 586 | Biogeography | 14 | 428 | 374 | 621 |
| 586 | hydrocolloids | 9 | 428 | 322 | 380 |
| 588 | rejuvenation | 10 | 427 | 24 | 26 |
| 589 | Operations Research | 36 | 424 | 543 | 890 |
| 590 | Geriatric Psychiatry | 16 | 422 | 356 | 378 |
| 591 | Decision making | 6 | 421 | 990 | 521 |
| 592 | counseling | 14 | 419 | 557 | 469 |
| 593 | Teratology | 6 | 413 | 174 | 114 |
| 593 | Patient education | 12 | 413 | 262 | 279 |
| 595 | Soil biology | 4 | 412 | 795 | 581 |
| 596 | health planning | 19 | 411 | 732 | 704 |
| 597 | Elderly | 22 | 410 | 383 | 237 |
| 598 | Mineralogy | 23 | 409 | 481 | 584 |
| 599 | protein | 18 | 404 | 444 | 571 |
| 600 | drug resistance | 22 | 402 | 97 | 248 |
| 601 | Hydrology | 19 | 401 | 940 | 1105 |
| 601 | Antibodies | 20 | 401 | 159 | 278 |
| 603 | Trace elements | 3 | 399 | 268 | 80 |
| 604 | Crystal growth | 8 | 397 | 621 | 387 |
| 604 | Recombinant DNA | 21 | 397 | 454 | 687 |
| 606 | Flow cytometry | 13 | 396 | 118 | 137 |
| 607 | complementary therapies | 13 | 393 | 617 | 542 |
| 608 | Plant breeding | 12 | 392 | 322 | 288 |
| 608 | Mechanics | 11 | 392 | 577 | 338 |
| 610 | Photobiology | 15 | 391 | 424 | 495 |
| 611 | Pharmacokinetics | 16 | 390 | 232 | 370 |
| 612 | Lymphoma | 22 | 389 | 64 | 55 |
| 613 | Fracture mechanics | 13 | 388 | 712 | 612 |
| 614 | Bioethics | 19 | 384 | 265 | 224 |
| 614 | soil conservation | 4 | 384 | 667 | 247 |
| 616 | Geriatric Pharmacology | 17 | 383 | 43 | 85 |
| 617 | Consciousness | 10 | 382 | 181 | 143 |
| 618 | Humanities | 12 | 379 | 693 | 266 |
| 618 | Diagnosis | 8 | 379 | 188 | 67 |
| 620 | Morphology | 14 | 377 | 273 | 218 |
| 621 | Heart Failure | 10 | 372 | 206 | 262 |
| 622 | Land Use Planning | 12 | 369 | 105 | 155 |
| 622 | viral genetics | 4 | 369 | 279 | 371 |
| 624 | Geography | 14 | 368 | 897 | 951 |
| 625 | Logic | 20 | 367 | 92 | 79 |
| 626 | baking | 15 | 366 | 60 | 78 |
| 627 | Artificial Organs | 32 | 365 | 111 | 201 |
| 628 | Ethnic relations | 15 | 364 | 167 | 111 |
| 628 | disease susceptibility | 3 | 364 | 29 | 3 |
| 628 | symptoms | 3 | 364 | 29 | 3 |
| 631 | Sustainable Engineering | 13 | 362 | 738 | 880 |
| 632 | Ethnic Conflict | 14 | 361 | 67 | 76 |
| 632 | forced migration | 14 | 361 | 67 | 76 |
| 634 | software | 19 | 359 | 243 | 491 |
| 635 | Emotions | 7 | 355 | 343 | 338 |
| 636 | Public opinion | 18 | 353 | 80 | 157 |
| 636 | land degradation | 3 | 353 | 480 | 136 |
| 636 | degradation | 3 | 353 | 480 | 136 |
| 639 | Multiple Myeloma | 20 | 351 | 72 | 55 |
| 640 | Thin Films | 13 | 350 | 152 | 104 |
| 641 | Signal Processing | 20 | 348 | 1079 | 1406 |
| 642 | industrial hygiene | 26 | 345 | 176 | 186 |
| 643 | Ceramic materials | 10 | 344 | 724 | 548 |
| 644 | Culture | 14 | 342 | 400 | 255 |
| 645 | Parkinson's disease | 8 | 340 | 110 | 85 |
| 646 | Journalism | 11 | 338 | 191 | 112 |
| 646 | Sustainable agriculture | 13 | 338 | 227 | 290 |
| 648 | Alternative Medicine | 12 | 337 | 617 | 616 |
| 648 | Information Science | 20 | 337 | 872 | 1272 |
| 650 | ethnic groups | 8 | 336 | 155 | 92 |
| 651 | Telecommunication | 9 | 335 | 1701 | 1315 |
| 652 | Risk | 3 | 332 | 557 | 272 |
| 653 | environmental indicators | 5 | 329 | 935 | 647 |
| 654 | Paleoceanography | 5 | 328 | 132 | 147 |
| 655 | Robotics | 15 | 327 | 753 | 835 |
| 655 | Natural resources | 8 | 327 | 418 | 381 |
| 655 | Cardiac electrophysiology | 7 | 327 | 150 | 135 |
| 655 | arrhythmia | 7 | 327 | 150 | 135 |
| 655 | Sedimentary rocks | 6 | 327 | 384 | 259 |
| 660 | Forest Ecology | 8 | 325 | 634 | 579 |
| 660 | preimplantation genetic diagnosis | 21 | 325 | 89 | 158 |
| 660 | embryo transfer | 21 | 325 | 97 | 172 |
| 660 | hygiene | 6 | 325 | 316 | 156 |
| 664 | Nuclear Fusion | 7 | 324 | 429 | 250 |
| 664 | Uncertainty | 2 | 324 | 241 | 76 |
| 666 | Marine Ecology | 11 | 321 | 360 | 278 |
| 666 | Pharmacogenomics | 9 | 321 | 100 | 126 |
| 666 | Industrial Policy | 15 | 321 | 118 | 202 |
| 669 | Petrology | 11 | 319 | 516 | 540 |
| 669 | Veterinary Immunology | 12 | 319 | 133 | 134 |
| 671 | ethanol | 17 | 316 | 123 | 181 |
| 672 | Cellulose | 4 | 313 | 515 | 267 |
| 673 | Hazardous waste | 8 | 310 | 514 | 635 |
| 674 | Radiation Oncology | 12 | 309 | 123 | 145 |
| 675 | Thermodynamics | 24 | 308 | 252 | 301 |
| 676 | Geometry | 7 | 306 | 668 | 227 |
| 677 | Asia | 21 | 305 | 906 | 962 |
| 678 | International Relations | 11 | 304 | 476 | 331 |
| 679 | innovation | 6 | 303 | 390 | 454 |
| 679 | Detectors | 7 | 303 | 1022 | 628 |
| 681 | Molecular cloning | 15 | 302 | 584 | 781 |
| 681 | Genetic recombination | 15 | 302 | 564 | 771 |
| 681 | feeding behavior | 7 | 302 | 441 | 394 |
| 681 | Appetite | 7 | 302 | 375 | 347 |
| 685 | Animal ecology | 18 | 299 | 397 | 592 |
| 686 | Allergies | 5 | 298 | 66 | 39 |
| 687 | Information Technology | 21 | 293 | 751 | 1189 |
| 688 | Animal Biotechnology | 4 | 292 | 129 | 54 |
| 689 | Microelectronics | 13 | 291 | 938 | 1138 |
| 690 | packaging | 14 | 290 | 17 | 20 |
| 691 | Microcirculation | 7 | 288 | 260 | 201 |
| 691 | Forest Management | 6 | 288 | 711 | 586 |
| 691 | Planets | 9 | 288 | 934 | 1082 |
| 694 | Mental Health Services | 10 | 287 | 644 | 564 |
| 695 | Economic Geography | 3 | 286 | 340 | 132 |
| 696 | probabilities | 16 | 284 | 507 | 402 |
| 696 | mathematical analysis | 23 | 284 | 876 | 880 |
| 698 | disabilities | 17 | 283 | 209 | 315 |
| 699 | Ethics | 15 | 281 | 293 | 287 |
| 699 | Women's health | 21 | 281 | 334 | 554 |
| 701 | Environmental Geology | 13 | 280 | 695 | 865 |
| 702 | bioclimatology | 11 | 279 | 327 | 390 |
| 702 | Crystallography | 18 | 279 | 668 | 516 |
| 704 | Thermochemistry | 23 | 277 | 107 | 202 |
| 705 | data protection | 7 | 276 | 278 | 123 |
| 706 | cholesterol | 1 | 275 | 4 | 1 |
| 707 | preventive medicine | 16 | 272 | 426 | 757 |
| 708 | Catalysts | 17 | 271 | 162 | 284 |
| 709 | Fluid Mechanics | 3 | 269 | 1606 | 777 |
| 709 | Travel | 23 | 269 | 157 | 299 |
| 711 | Clinical Trials | 5 | 265 | 439 | 231 |
| 711 | System analysis | 18 | 265 | 886 | 1188 |
| 713 | Animal Physiology | 5 | 264 | 119 | 87 |
| 713 | Natural selection | 5 | 264 | 119 | 87 |
| 713 | Hippocampus | 2 | 264 | 366 | 219 |
| 713 | genetic selection | 5 | 264 | 119 | 87 |
| 717 | Nonlinear functional analysis | 12 | 262 | 437 | 394 |
| 718 | drug control | 7 | 261 | 224 | 178 |
| 719 | Vaccination | 17 | 258 | 33 | 139 |
| 720 | Primary health care | 20 | 256 | 548 | 849 |
| 720 | Informatics | 7 | 256 | 538 | 490 |
| 722 | Radiation Protection | 26 | 255 | 112 | 128 |
| 723 | radioactive waste | 7 | 253 | 460 | 703 |
| 723 | industrial waste | 9 | 253 | 387 | 704 |
| 725 | Agricultural Engineering | 14 | 252 | 124 | 213 |
| 725 | Health Services Research | 19 | 252 | 563 | 881 |
| 725 | fuel cells | 8 | 252 | 833 | 966 |
| 728 | Public Administration | 18 | 251 | 458 | 572 |
| 728 | energy conservation | 3 | 251 | 2197 | 1603 |
| 728 | adolescence | 3 | 251 | 892 | 532 |
| 731 | actuators | 13 | 250 | 1119 | 1518 |
| 731 | organizational effectiveness | 9 | 250 | 128 | 151 |
| 731 | Stress | 3 | 250 | 262 | 93 |
| 731 | transducers | 13 | 250 | 1119 | 1518 |
| 731 | natural disasters | 6 | 250 | 893 | 720 |
| 736 | irrigation | 11 | 249 | 108 | 96 |
| 736 | Blood vessels | 5 | 249 | 246 | 168 |
| 738 | Audiology | 28 | 248 | 198 | 418 |
| 738 | Environmental risk assessment | 7 | 248 | 198 | 138 |
| 740 | Community Psychiatry | 17 | 247 | 317 | 606 |
| 740 | Imaging systems | 3 | 247 | 873 | 195 |
| 742 | Ultrasonics | 11 | 246 | 574 | 810 |
| 743 | Nursing | 27 | 245 | 472 | 709 |
| 744 | Vocational guidance | 1 | 244 | 1435 | 530 |
| 744 | European Union | 8 | 244 | 63 | 59 |
| 746 | Political Parties | 11 | 242 | 55 | 86 |
| 746 | sexual behavior | 8 | 242 | 328 | 358 |
| 748 | Education | 23 | 241 | 1149 | 1541 |
| 748 | Remote Sensing | 25 | 241 | 346 | 591 |
| 748 | Post-traumatic stress disorder | 7 | 241 | 459 | 480 |
| 751 | Computer Science | 22 | 240 | 576 | 815 |
| 752 | Ethnology | 12 | 238 | 581 | 513 |
| 753 | Radioisotopes | 23 | 236 | 313 | 438 |
| 754 | Energy Conversion | 8 | 235 | 805 | 1132 |
| 755 | drainage | 10 | 234 | 90 | 65 |
| 756 | Carbon | 14 | 232 | 571 | 1119 |
| 757 | Otolaryngology | 9 | 231 | 294 | 291 |
| 757 | Erectile dysfunction | 16 | 231 | 42 | 107 |
| 757 | Tourism | 10 | 231 | 796 | 1085 |
| 760 | Exercise therapy | 6 | 230 | 202 | 104 |
| 760 | Flood control | 10 | 230 | 52 | 46 |
| 762 | Regional Economics | 10 | 226 | 154 | 196 |
| 762 | Genes | 11 | 226 | 519 | 658 |
| 764 | Language Disorders | 13 | 225 | 354 | 420 |
| 764 | Microwaves | 2 | 225 | 1726 | 732 |
| 766 | Conservation Biology | 10 | 223 | 555 | 827 |
| 767 | mental processes | 10 | 222 | 152 | 139 |
| 768 | Osteoporosis | 8 | 219 | 138 | 156 |
| 769 | Systems Analysis | 10 | 218 | 535 | 527 |
| 770 | Microfabrication | 3 | 217 | 412 | 160 |
| 770 | Pregnancy | 14 | 217 | 300 | 450 |
| 772 | Sedimentology | 11 | 216 | 222 | 381 |
| 772 | Diplomatic relations | 7 | 216 | 358 | 130 |
| 774 | Clinical Laboratory Science | 10 | 214 | 67 | 65 |
| 774 | Plant Morphology | 14 | 214 | 137 | 215 |
| 774 | Health Risk Assessment | 3 | 214 | 486 | 137 |
| 777 | Biosensors | 5 | 213 | 1033 | 1217 |
| 778 | Geotechnical Engineering | 4 | 211 | 418 | 285 |
| 779 | emergency management | 4 | 209 | 569 | 383 |
| 779 | Metals | 7 | 209 | 1535 | 1419 |
| 781 | Oceanography | 4 | 208 | 1518 | 1194 |
| 781 | Paleontology | 16 | 208 | 522 | 695 |
| 781 | Friction | 3 | 208 | 91 | 62 |
| 781 | cohesion | 3 | 208 | 6 | 8 |
| 785 | Real-time Data Processing | 1 | 207 | 242 | 41 |
| 785 | polar regions | 9 | 207 | 320 | 350 |
| 785 | Ultrasonic Imaging | 7 | 207 | 287 | 269 |
| 785 | econometric models | 11 | 207 | 179 | 310 |
| 789 | Data Mining | 12 | 206 | 694 | 1148 |
| 789 | Developmental Toxicology | 7 | 206 | 21 | 42 |
| 789 | teratogens | 7 | 206 | 21 | 42 |
| 792 | Positive Psychology | 3 | 205 | 150 | 141 |
| 792 | Taste | 10 | 205 | 80 | 110 |
| 792 | smell | 10 | 205 | 80 | 110 |
| 795 | body temperature | 7 | 203 | 247 | 200 |
| 796 | pain management | 9 | 202 | 296 | 342 |
| 797 | Organ transplantation | 10 | 199 | 169 | 139 |
| 797 | Development | 7 | 199 | 472 | 594 |
| 799 | Evidence-Based Medicine | 8 | 197 | 353 | 361 |
| 799 | Youth | 2 | 197 | 818 | 458 |
| 801 | Plant Biotechnology | 11 | 195 | 353 | 558 |
| 802 | Echocardiography | 5 | 194 | 46 | 31 |
| 802 | Ventilation | 8 | 194 | 243 | 286 |
| 802 | Human Resources | 5 | 194 | 302 | 340 |
| 805 | Plant Genetics | 8 | 193 | 382 | 623 |
| 805 | Electron Microscopy | 5 | 193 | 295 | 168 |
| 807 | radiation monitoring | 21 | 192 | 112 | 155 |
| 808 | Functional Genomics | 3 | 191 | 278 | 251 |
| 809 | Pediatric Endocrinology | 10 | 190 | 100 | 76 |
| 809 | Cardiovascular Pharmacology | 9 | 190 | 98 | 135 |
| 809 | Metabolic disorders in children | 10 | 190 | 75 | 58 |
| 812 | eugenics | 13 | 189 | 171 | 319 |
| 812 | Aquatic ecology | 12 | 189 | 388 | 548 |
| 814 | Statistical Mechanics | 5 | 188 | 497 | 329 |
| 814 | Calorimetry | 9 | 188 | 596 | 539 |
| 814 | environmental control | 3 | 188 | 227 | 139 |
| 814 | toxicity testing | 15 | 188 | 169 | 473 |
| 814 | Thermal analysis | 9 | 188 | 596 | 539 |
| 814 | Nitric oxide | 5 | 188 | 140 | 158 |
| 820 | civilization | 22 | 187 | 234 | 116 |
| 821 | Mining Engineering | 7 | 186 | 327 | 342 |
| 821 | air quality management | 8 | 186 | 239 | 333 |
| 823 | indoor air pollution | 7 | 185 | 181 | 252 |
| 823 | Sick building syndrome | 7 | 185 | 181 | 252 |
| 825 | Power Electronics | 3 | 184 | 1104 | 891 |
| 825 | Organizational change | 8 | 184 | 350 | 395 |
| 825 | Nanoparticles | 17 | 184 | 775 | 1424 |
| 825 | Animal welfare | 4 | 184 | 226 | 172 |
| 829 | visualization | 43 | 183 | 280 | 590 |
| 830 | Cross-Cultural Studies | 8 | 182 | 353 | 360 |
| 830 | Cell cycle | 10 | 182 | 108 | 184 |
| 830 | cell proliferation | 10 | 182 | 121 | 199 |
| 830 | RNA | 9 | 182 | 250 | 455 |
| 834 | Global Health | 16 | 181 | 365 | 538 |
| 835 | technology transfer | 4 | 180 | 163 | 164 |
| 836 | Behavioral Genetics | 1 | 179 | 408 | 197 |
| 836 | Labor Movement | 17 | 179 | 19 | 18 |
| 838 | Rural Development | 4 | 178 | 422 | 332 |
| 838 | International Finance | 9 | 178 | 965 | 1057 |
| 840 | Quantitative Research | 7 | 177 | 125 | 173 |
| 840 | global environmental change | 5 | 177 | 630 | 786 |
| 840 | Bioelectronics | 4 | 177 | 1028 | 1225 |
| 840 | Phytotherapy | 8 | 177 | 257 | 404 |
| 844 | Stochastic Processes | 10 | 176 | 378 | 379 |
| 844 | Business | 12 | 176 | 1012 | 1599 |
| 846 | Social History | 10 | 173 | 214 | 140 |
| 847 | Energy Storage | 6 | 172 | 927 | 938 |
| 847 | Pediatric Rheumatology | 7 | 172 | 121 | 100 |
| 847 | Risk assessment | 2 | 172 | 868 | 272 |
| 847 | ecological risk assessment | 2 | 172 | 366 | 106 |
| 851 | Substance Abuse | 9 | 171 | 816 | 957 |
| 851 | Meteorites | 6 | 171 | 668 | 860 |
| 853 | Cell division | 9 | 170 | 135 | 322 |
| 853 | marketing | 5 | 170 | 1424 | 1331 |
| 853 | Multiple sclerosis | 16 | 170 | 164 | 258 |
| 856 | Carbohydrate | 1 | 169 | 83 | 63 |
| 857 | Agricultural Ecology | 8 | 168 | 600 | 1019 |
| 857 | Human Geography | 3 | 168 | 1012 | 608 |
| 857 | Wireless Communication Systems | 12 | 168 | 1291 | 1527 |
| 857 | Consumer education | 3 | 168 | 322 | 248 |
| 857 | venom | 5 | 168 | 564 | 491 |
| 857 | Toxins | 5 | 168 | 642 | 556 |
| 863 | Insects | 10 | 167 | 754 | 883 |
| 864 | Magnetohydrodynamics | 1 | 165 | 408 | 195 |
| 865 | Sustainable Development | 7 | 164 | 1294 | 1605 |
| 865 | Functional foods | 7 | 164 | 157 | 219 |
| 865 | Solitons | 7 | 164 | 714 | 695 |
| 865 | Fractals | 7 | 164 | 717 | 697 |
| 865 | Chaos | 7 | 164 | 714 | 695 |
| 870 | Pesticides | 10 | 163 | 266 | 348 |
| 870 | organization | 6 | 163 | 495 | 641 |
| 872 | Plant genetic engineering | 7 | 162 | 568 | 843 |
| 872 | research and development | 2 | 162 | 484 | 277 |
| 872 | Hearing | 11 | 162 | 331 | 424 |
| 875 | Demography | 17 | 161 | 185 | 509 |
| 876 | Systems Engineering | 7 | 160 | 1513 | 1391 |
| 877 | Functional Analysis | 9 | 159 | 708 | 663 |
| 877 | Algebra | 24 | 159 | 441 | 512 |
| 877 | monitoring | 11 | 159 | 64 | 100 |
| 877 | Chemical analysis | 9 | 159 | 650 | 892 |
| 877 | dissociative disorders | 2 | 159 | 149 | 50 |
| 877 | cryosphere | 2 | 159 | 443 | 313 |
| 883 | Water quality management | 11 | 158 | 921 | 1191 |
| 884 | Human-Computer Interaction | 6 | 157 | 1095 | 1109 |
| 884 | particle accelerators | 5 | 157 | 106 | 92 |
| 884 | European integration | 9 | 157 | 96 | 142 |
| 884 | particle beams | 5 | 157 | 103 | 91 |
| 884 | atmospheric models | 2 | 157 | 762 | 612 |
| 884 | Economic Assistance | 6 | 157 | 443 | 635 |
| 884 | European Economic Community | 9 | 157 | 96 | 142 |
| 891 | Emerging infectious diseases | 8 | 156 | 143 | 270 |
| 891 | Quantum Gravity | 10 | 156 | 1261 | 1420 |
| 893 | cooperation | 9 | 155 | 15 | 26 |
| 893 | Birds | 12 | 155 | 559 | 628 |
| 895 | mammals | 12 | 154 | 427 | 635 |
| 896 | Medicinal plants | 3 | 153 | 1420 | 1234 |
| 896 | Biomechanics | 12 | 153 | 598 | 1027 |
| 896 | Scandinavia | 8 | 153 | 297 | 363 |
| 896 | computer networks | 12 | 153 | 1293 | 1795 |
| 900 | Restoration Ecology | 4 | 152 | 356 | 321 |
| 901 | Pathogens | 7 | 151 | 23 | 42 |
| 902 | commerce | 9 | 150 | 816 | 1049 |
| 902 | catalytic activity | 7 | 150 | 382 | 542 |
| 902 | population geography | 7 | 150 | 195 | 233 |
| 905 | Mobile Computing | 9 | 149 | 614 | 761 |
| 905 | Labor Economics | 9 | 149 | 216 | 343 |
| 905 | DNA polymerases | 4 | 149 | 391 | 762 |
| 908 | chromatin | 2 | 148 | 193 | 152 |
| 909 | Historic Preservation | 5 | 147 | 65 | 40 |
| 909 | Apoptosis | 2 | 147 | 353 | 187 |
| 909 | neurotoxins | 2 | 147 | 353 | 187 |
| 909 | Neurotoxic agents | 2 | 147 | 353 | 187 |
| 909 | Nerve regeneration | 2 | 147 | 353 | 187 |
| 914 | Health Services Administration | 5 | 144 | 816 | 813 |
| 914 | Medical Anthropology | 8 | 144 | 712 | 1243 |
| 914 | Ornithology | 11 | 144 | 480 | 546 |
| 914 | Computational Complexity | 24 | 144 | 135 | 434 |
| 914 | cell movement | 4 | 144 | 181 | 240 |
| 914 | food industry | 10 | 144 | 262 | 330 |
| 920 | Multimedia Systems | 13 | 142 | 830 | 1148 |
| 921 | Freeze-Drying | 4 | 140 | 316 | 241 |
| 921 | Hypothermia | 4 | 140 | 316 | 241 |
| 921 | Freeze Drying | 4 | 140 | 316 | 241 |
| 921 | Nutrigenomics | 3 | 140 | 85 | 88 |
| 925 | Landscape Architecture | 5 | 139 | 77 | 30 |
| 925 | data collection | 4 | 139 | 1016 | 1013 |
| 925 | Spine | 10 | 139 | 373 | 685 |
| 925 | Aquaculture | 7 | 139 | 948 | 1088 |
| 929 | Hematopoiesis | 4 | 138 | 41 | 36 |
| 929 | Transgenic plants | 4 | 138 | 406 | 448 |
| 931 | Game Theory | 7 | 137 | 314 | 317 |
| 932 | Engineering Mathematics | 11 | 136 | 934 | 1097 |
| 932 | Law and Economics | 5 | 136 | 186 | 115 |
| 932 | Psychiatric Epidemiology | 7 | 136 | 287 | 503 |
| 932 | liver | 9 | 136 | 112 | 199 |
| 932 | Fisheries | 8 | 136 | 994 | 1223 |
| 937 | Comparative Physiology | 2 | 135 | 909 | 651 |
| 937 | Smoking | 3 | 135 | 779 | 682 |
| 939 | Amyloidosis | 10 | 134 | 56 | 105 |
| 940 | Sonochemistry | 7 | 133 | 313 | 713 |
| 941 | Ecological Engineering | 5 | 132 | 466 | 678 |
| 941 | Bacteria | 5 | 132 | 233 | 419 |
| 943 | Germany | 10 | 130 | 224 | 156 |
| 944 | Geographic information systems | 14 | 129 | 373 | 652 |
| 944 | Laser therapy | 12 | 129 | 151 | 206 |
| 944 | Raman spectroscopy | 7 | 129 | 435 | 574 |
| 944 | Learning | 5 | 129 | 935 | 1040 |
| 948 | Fertilization | 2 | 128 | 91 | 63 |
| 948 | Climate | 6 | 128 | 340 | 523 |
| 948 | gametes | 2 | 128 | 91 | 63 |
| 951 | Biomarkers | 10 | 127 | 133 | 251 |
| 951 | Extracellular matrix | 4 | 127 | 207 | 325 |
| 951 | human development | 6 | 127 | 536 | 694 |
| 951 | collagen | 4 | 127 | 223 | 338 |
| 955 | Waste management | 10 | 126 | 732 | 1003 |
| 955 | synthesis | 12 | 126 | 400 | 525 |
| 957 | Serology | 6 | 125 | 280 | 341 |
| 958 | Social Stratification | 7 | 124 | 37 | 57 |
| 958 | International Law | 15 | 124 | 102 | 65 |
| 958 | Social mobility | 7 | 124 | 37 | 57 |
| 958 | social conflict | 7 | 124 | 84 | 114 |
| 958 | cell membrane | 5 | 124 | 422 | 588 |
| 958 | Social behavior | 11 | 124 | 528 | 976 |
| 958 | social status | 7 | 124 | 37 | 57 |
| 958 | Occupational mobility | 7 | 124 | 37 | 57 |
| 966 | Archaeology | 17 | 123 | 476 | 831 |
| 966 | Transportation | 5 | 123 | 1315 | 1340 |
| 966 | Corporate governance | 4 | 123 | 463 | 501 |
| 966 | Population | 14 | 123 | 303 | 783 |
| 966 | Endocrine system | 34 | 123 | 118 | 176 |
| 966 | gastrointestinal tract | 6 | 123 | 194 | 436 |
| 972 | Cosmochemistry | 4 | 122 | 824 | 831 |
| 973 | General Surgery | 9 | 121 | 340 | 391 |
| 973 | DNA | 9 | 121 | 250 | 451 |
| 975 | Database Management | 8 | 120 | 458 | 638 |
| 975 | Electrocardiography | 7 | 120 | 200 | 178 |
| 977 | Numerical Analysis | 11 | 119 | 1275 | 1461 |
| 977 | Neuroplasticity | 8 | 119 | 71 | 229 |
| 977 | plant viruses | 4 | 119 | 175 | 219 |
| 977 | peptides | 13 | 119 | 255 | 525 |
| 977 | weather | 5 | 119 | 393 | 483 |
| 982 | World Bank | 2 | 118 | 60 | 57 |
| 983 | electroplating | 2 | 117 | 84 | 16 |
| 983 | surface preparation | 2 | 117 | 64 | 15 |
| 985 | Cosmology | 5 | 116 | 459 | 480 |
| 985 | cultural policy | 3 | 116 | 203 | 110 |
| 985 | Morphogenesis | 1 | 116 | 163 | 70 |
| 985 | Organogenesis | 1 | 116 | 99 | 48 |
| 985 | Energy Harvesting | 4 | 116 | 421 | 677 |
| 985 | Algae | 1 | 116 | 1159 | 659 |
| 985 | Seaweed | 1 | 116 | 898 | 535 |
| 985 | psychotherapy | 12 | 116 | 611 | 1100 |
| 985 | crops | 1 | 116 | 296 | 57 |
| 994 | Health Physics | 9 | 115 | 65 | 85 |
| 995 | Nanochemistry | 11 | 114 | 511 | 970 |
| 995 | Malaria | 4 | 114 | 630 | 664 |
| 995 | China | 11 | 114 | 1610 | 2298 |
| 995 | Agricultural systems | 5 | 114 | 238 | 364 |
| 999 | Democracy | 8 | 113 | 121 | 126 |
| 1000 | Popular culture | 3 | 112 | 501 | 156 |