| 1 | Biology | 2,832 | 339.3K | 76 | 58 |
| 2 | Science | 2,863 | 319.2K | 75 | 60 |
| 3 | Physics | 2,573 | 291.7K | 144 | 88 |
| 4 | Medicine | 3,008 | 194.8K | 65 | 64 |
| 5 | Human genetics | 729 | 173.1K | 16 | 16 |
| 6 | Natural history | 566 | 169.3K | 72 | 60 |
| 7 | Ecology | 2,262 | 165.6K | 16 | 24 |
| 8 | Molecular Biology | 2,001 | 157.0K | 73 | 63 |
| 9 | Astrophysics | 1,461 | 141.4K | 94 | 72 |
| 10 | Astronomy | 1,308 | 134.2K | 93 | 54 |
| 11 | Microbiology | 2,155 | 134.0K | 22 | 35 |
| 12 | Biochemistry | 2,959 | 132.8K | 76 | 89 |
| 13 | Chemistry | 1,720 | 116.4K | 216 | 193 |
| 14 | Neurology | 1,575 | 103.2K | 82 | 86 |
| 15 | Cytology | 940 | 95.4K | 66 | 68 |
| 16 | Research | 2,367 | 94.9K | 49 | 60 |
| 17 | Genetics | 836 | 87.6K | 48 | 37 |
| 18 | Cell Biology | 732 | 84.4K | 80 | 70 |
| 19 | Environment | 962 | 82.2K | 31 | 25 |
| 20 | Nuclear Physics | 1,984 | 78.9K | 77 | 84 |
| 21 | Geophysics | 1,229 | 72.4K | 40 | 29 |
| 22 | Medical genetics | 868 | 72.1K | 22 | 26 |
| 23 | Virology | 742 | 69.6K | 39 | 62 |
| 24 | Pharmacology | 1,448 | 64.6K | 24 | 17 |
| 25 | Pollution | 855 | 60.6K | 54 | 44 |
| 26 | Diabetes | 646 | 59.6K | 8 | 3 |
| 27 | Atmospheric Physics | 882 | 55.9K | 3 | 7 |
| 28 | Diabetes mellitus | 602 | 55.2K | 7 | 3 |
| 29 | Endocrinology | 769 | 52.2K | 51 | 54 |
| 30 | Atmospheric Chemistry | 789 | 51.9K | 2 | 4 |
| 31 | Psychiatry | 732 | 46.9K | 78 | 72 |
| 32 | Botany | 958 | 45.4K | 39 | 54 |
| 33 | Psychology | 830 | 41.0K | 84 | 87 |
| 34 | Cancer | 713 | 38.9K | 47 | 56 |
| 35 | Metabolism | 613 | 38.6K | 38 | 51 |
| 36 | Pathology | 1,025 | 38.5K | 5 | 8 |
| 37 | Biodiversity conservation | 321 | 36.5K | 9 | 5 |
| 38 | Metabolic diseases | 515 | 36.2K | 34 | 48 |
| 39 | Immunology | 878 | 36.2K | 39 | 95 |
| 40 | Biophysics | 867 | 36.0K | 118 | 100 |
| 41 | Surgery | 280 | 35.6K | 52 | 42 |
| 42 | drug therapy | 570 | 34.7K | 11 | 6 |
| 43 | Public Health | 942 | 34.4K | 73 | 108 |
| 44 | Microbial Ecology | 449 | 33.9K | 16 | 31 |
| 45 | Developmental Biology | 356 | 33.6K | 59 | 45 |
| 46 | Psychophysiology | 453 | 32.6K | 95 | 64 |
| 47 | Nutrition | 581 | 32.4K | 43 | 33 |
| 48 | Epidemiology | 932 | 31.3K | 29 | 52 |
| 49 | Neurophysiology | 413 | 30.9K | 105 | 94 |
| 50 | Biotechnology | 502 | 30.8K | 157 | 157 |
| 51 | Evolution | 359 | 30.6K | 18 | 23 |
| 52 | Physiology | 1,021 | 29.4K | 48 | 92 |
| 53 | Hematology | 495 | 28.6K | 94 | 77 |
| 54 | Climate change | 182 | 28.6K | 8 | 7 |
| 55 | Eutrophication | 181 | 28.6K | 7 | 7 |
| 56 | Environmental Health | 636 | 28.4K | 84 | 117 |
| 57 | Mental Disorders | 518 | 27.0K | 45 | 66 |
| 58 | biological evolution | 328 | 24.5K | 36 | 52 |
| 59 | Aging | 318 | 23.3K | 87 | 34 |
| 60 | Biodiversity | 429 | 22.1K | 2 | 6 |
| 61 | Spectrum analysis | 548 | 22.1K | 169 | 268 |
| 62 | Therapeutics | 271 | 22.0K | 25 | 13 |
| 63 | Geriatrics | 326 | 22.0K | 97 | 48 |
| 64 | Diet | 297 | 22.0K | 33 | 20 |
| 65 | Genomics | 462 | 21.9K | 24 | 28 |
| 66 | environmental pollution | 483 | 21.7K | 63 | 76 |
| 67 | Quantum Gravity | 602 | 21.3K | 75 | 128 |
| 68 | Pediatrics | 336 | 21.0K | 87 | 72 |
| 69 | Brain | 378 | 19.9K | 84 | 84 |
| 70 | Condensed Matter | 374 | 19.7K | 269 | 199 |
| 71 | Molecular Genetics | 265 | 19.4K | 20 | 24 |
| 72 | Computational Biology | 313 | 19.2K | 30 | 54 |
| 73 | Solid State Physics | 360 | 19.0K | 315 | 195 |
| 74 | Obesity | 280 | 19.0K | 42 | 27 |
| 75 | Meteorology | 405 | 18.4K | 70 | 88 |
| 76 | Population Genetics | 238 | 18.3K | 8 | 12 |
| 77 | transport vesicles | 22 | 18.3K | 16 | 19 |
| 78 | Embryology | 215 | 18.3K | 61 | 48 |
| 79 | Medical Microbiology | 349 | 18.1K | 20 | 40 |
| 80 | Molecular ecology | 209 | 18.1K | 7 | 13 |
| 81 | Pharmaceutical Chemistry | 457 | 17.9K | 63 | 84 |
| 82 | Cell differentiation | 237 | 17.9K | 49 | 70 |
| 83 | genome | 166 | 17.7K | 38 | 45 |
| 84 | Mathematics | 852 | 17.5K | 148 | 86 |
| 85 | Immunity | 322 | 17.5K | 37 | 126 |
| 86 | Environmental Policy | 309 | 17.4K | 40 | 58 |
| 87 | Plant cells | 151 | 16.9K | 68 | 74 |
| 88 | Plant physiology | 294 | 16.9K | 28 | 48 |
| 89 | Clinical Chemistry | 410 | 16.6K | 30 | 37 |
| 90 | Anatomy | 197 | 16.2K | 83 | 50 |
| 91 | Toxicology | 525 | 16.2K | 65 | 105 |
| 92 | Environmental Engineering | 250 | 16.0K | 128 | 124 |
| 93 | Nanotechnology | 227 | 15.9K | 460 | 341 |
| 94 | Polymers | 471 | 15.8K | 201 | 203 |
| 95 | Cytogenetics | 189 | 15.7K | 42 | 53 |
| 96 | Nervous system | 247 | 15.6K | 79 | 86 |
| 97 | Bacteriology | 240 | 15.6K | 56 | 72 |
| 98 | soil microbiology | 264 | 15.5K | 20 | 30 |
| 99 | Agricultural Chemistry | 142 | 15.4K | 127 | 19 |
| 100 | Neurobiology | 181 | 15.4K | 91 | 70 |
| 101 | Oncology | 128 | 15.2K | 142 | 87 |
| 102 | Biocompatible Materials | 239 | 15.1K | 264 | 222 |
| 103 | Clinical Pharmacology | 378 | 14.9K | 5 | 3 |
| 104 | Materials | 283 | 14.9K | 580 | 461 |
| 105 | Plants | 238 | 14.8K | 37 | 65 |
| 106 | Food | 237 | 14.8K | 73 | 45 |
| 107 | Mental illness | 241 | 14.8K | 64 | 74 |
| 108 | Bioinformatics | 250 | 14.6K | 28 | 53 |
| 109 | drugs | 355 | 14.3K | 10 | 7 |
| 110 | nucleic acids | 107 | 14.2K | 151 | 96 |
| 111 | Animal Behavior | 320 | 13.9K | 55 | 83 |
| 112 | Food Microbiology | 196 | 13.8K | 7 | 6 |
| 113 | Bioengineering | 176 | 13.8K | 304 | 231 |
| 114 | viruses | 201 | 13.6K | 62 | 66 |
| 115 | Europe | 899 | 13.6K | 8 | 33 |
| 116 | Forest Ecology | 312 | 13.5K | 8 | 11 |
| 117 | Biogeochemistry | 237 | 13.4K | 6 | 13 |
| 118 | Education | 422 | 13.1K | 100 | 83 |
| 119 | Sociology | 435 | 13.0K | 48 | 93 |
| 120 | Wildlife conservation | 214 | 12.8K | 7 | 11 |
| 121 | Ethology | 278 | 12.8K | 32 | 60 |
| 122 | Growth | 123 | 12.7K | 77 | 67 |
| 123 | Forest Management | 301 | 12.3K | 11 | 11 |
| 124 | Statistical physics | 308 | 12.3K | 259 | 180 |
| 125 | plant molecular biology | 139 | 12.2K | 78 | 89 |
| 126 | Environmental monitoring | 220 | 12.1K | 110 | 99 |
| 127 | Mathematical Physics | 236 | 12.0K | 165 | 95 |
| 128 | Sleep | 253 | 11.8K | 31 | 30 |
| 129 | Sleep Disorders | 248 | 11.7K | 31 | 27 |
| 130 | gene mapping | 206 | 11.7K | 43 | 58 |
| 131 | Plant Ecology | 225 | 11.5K | 19 | 37 |
| 132 | Obstetrics | 299 | 11.4K | 83 | 70 |
| 133 | human behavior | 197 | 11.4K | 108 | 136 |
| 134 | Neurochemistry | 224 | 11.3K | 112 | 102 |
| 135 | Marine Biology | 347 | 11.2K | 49 | 83 |
| 136 | Animal ecology | 244 | 11.2K | 5 | 9 |
| 137 | Neurons | 30 | 11.2K | 129 | 80 |
| 138 | Earth Sciences | 159 | 11.1K | 224 | 126 |
| 139 | Behavior | 211 | 11.1K | 195 | 198 |
| 140 | Plant diseases | 223 | 10.9K | 68 | 40 |
| 141 | polymerization | 354 | 10.7K | 202 | 215 |
| 142 | atmospheric models | 212 | 10.5K | 8 | 18 |
| 143 | Analytical Chemistry | 283 | 10.4K | 248 | 252 |
| 144 | Pharmacy | 277 | 10.4K | 46 | 38 |
| 145 | Planets | 148 | 10.4K | 159 | 105 |
| 146 | Steroids | 208 | 10.4K | 2 | 1 |
| 147 | Immune system | 244 | 10.2K | 11 | 85 |
| 148 | Zoology | 349 | 9.9K | 27 | 41 |
| 149 | pain | 184 | 9.7K | 43 | 52 |
| 150 | United States | 293 | 9.6K | 298 | 285 |
| 151 | Psychopharmacology | 244 | 9.5K | 35 | 87 |
| 152 | Hypertension | 134 | 9.2K | 126 | 136 |
| 153 | Teaching | 167 | 9.2K | 44 | 22 |
| 154 | Critical Care Medicine | 123 | 9.1K | 109 | 120 |
| 155 | Critical Care | 123 | 9.0K | 111 | 121 |
| 156 | Aerosols | 294 | 9.0K | 2 | 3 |
| 157 | Reproduction | 262 | 9.0K | 64 | 70 |
| 158 | Data Mining | 118 | 9.0K | 13 | 36 |
| 159 | Environmental Management | 176 | 9.0K | 74 | 72 |
| 160 | Biochemical Engineering | 96 | 8.9K | 421 | 296 |
| 161 | Ophthalmology | 250 | 8.9K | 73 | 81 |
| 162 | Educational Psychology | 161 | 8.8K | 56 | 46 |
| 163 | Materials Science | 224 | 8.8K | 358 | 390 |
| 164 | sanitation | 126 | 8.8K | 99 | 130 |
| 165 | Cardiovascular system | 117 | 8.7K | 147 | 162 |
| 166 | Hormones | 171 | 8.7K | 17 | 16 |
| 167 | cell physiology | 119 | 8.7K | 84 | 72 |
| 168 | Soil biology | 153 | 8.6K | 23 | 37 |
| 169 | Biomedical Engineering | 214 | 8.5K | 338 | 303 |
| 170 | Chromosome mapping | 173 | 8.5K | 36 | 49 |
| 171 | Geography | 215 | 8.5K | 86 | 82 |
| 172 | Medical Anthropology | 164 | 8.5K | 45 | 55 |
| 173 | Transplantation | 177 | 8.4K | 53 | 63 |
| 174 | Scandinavia | 569 | 8.3K | 2 | 4 |
| 175 | environmental protection | 154 | 8.2K | 167 | 120 |
| 176 | plant communities | 140 | 8.2K | 10 | 31 |
| 177 | Oncogenes | 102 | 8.1K | 65 | 71 |
| 178 | Diagnostic microbiology | 112 | 8.1K | 47 | 56 |
| 179 | Pediatric Neurology | 106 | 8.0K | 53 | 80 |
| 180 | Biogeography | 137 | 7.9K | 7 | 19 |
| 181 | Social Psychology | 198 | 7.8K | 120 | 181 |
| 182 | Cognitive neuroscience | 89 | 7.8K | 81 | 76 |
| 183 | Oceanography | 181 | 7.5K | 115 | 115 |
| 184 | Conservation Biology | 162 | 7.5K | 13 | 24 |
| 185 | Climatology | 149 | 7.5K | 111 | 123 |
| 186 | Histology | 195 | 7.5K | 41 | 66 |
| 187 | infection | 118 | 7.4K | 62 | 33 |
| 188 | Immunopathology | 167 | 7.4K | 22 | 22 |
| 189 | Molecular evolution | 124 | 7.3K | 57 | 81 |
| 190 | Mycology | 175 | 7.2K | 39 | 39 |
| 191 | Economics | 344 | 7.1K | 205 | 285 |
| 192 | Medical Laboratory Science | 144 | 7.1K | 80 | 99 |
| 193 | food technology | 157 | 7.0K | 141 | 94 |
| 194 | Lipids | 153 | 7.0K | 13 | 33 |
| 195 | Infections | 99 | 7.0K | 38 | 25 |
| 196 | Immunotherapy | 66 | 6.9K | 204 | 118 |
| 197 | Water pollution | 150 | 6.9K | 161 | 177 |
| 198 | feeding behavior | 92 | 6.9K | 20 | 11 |
| 199 | Biopharmaceutics | 138 | 6.8K | 8 | 9 |
| 200 | Cell metabolism | 30 | 6.8K | 70 | 52 |
| 201 | aerosol | 238 | 6.8K | 1 | 2 |
| 202 | Appetite | 89 | 6.8K | 16 | 9 |
| 203 | Homeostasis | 26 | 6.8K | 62 | 52 |
| 204 | Technology | 160 | 6.8K | 293 | 193 |
| 205 | ecosystem | 133 | 6.6K | 20 | 39 |
| 206 | nanoscience | 59 | 6.6K | 548 | 282 |
| 207 | Colloids | 174 | 6.5K | 365 | 365 |
| 208 | Bioenergetics | 147 | 6.5K | 11 | 17 |
| 208 | Parasitic Diseases | 126 | 6.5K | 75 | 53 |
| 210 | Disease | 14 | 6.4K | 54 | 61 |
| 211 | diseases | 10 | 6.4K | 96 | 63 |
| 212 | Thrombosis | 138 | 6.4K | 24 | 37 |
| 213 | Child Development | 179 | 6.4K | 109 | 162 |
| 214 | Industrial Microbiology | 125 | 6.4K | 55 | 51 |
| 215 | Geochemistry | 146 | 6.4K | 205 | 214 |
| 215 | Leukemia | 109 | 6.4K | 56 | 84 |
| 217 | Energy metabolism | 145 | 6.3K | 10 | 18 |
| 218 | Communication | 156 | 6.2K | 94 | 110 |
| 219 | Environmental Microbiology | 113 | 6.1K | 27 | 61 |
| 220 | Liver diseases | 98 | 6.1K | 122 | 170 |
| 221 | Sustainable Development | 92 | 6.1K | 62 | 64 |
| 222 | Geology | 165 | 6.1K | 324 | 304 |
| 223 | Memory | 172 | 6.0K | 107 | 122 |
| 224 | Pharmaceutical Technology | 170 | 6.0K | 10 | 14 |
| 225 | Solar System | 135 | 6.0K | 46 | 51 |
| 226 | personality | 135 | 6.0K | 86 | 139 |
| 227 | Perception | 190 | 5.9K | 102 | 116 |
| 228 | Agriculture | 216 | 5.8K | 57 | 94 |
| 229 | Molecular structure | 133 | 5.8K | 89 | 112 |
| 230 | Virulence | 57 | 5.7K | 131 | 101 |
| 231 | Neuropsychology | 179 | 5.7K | 114 | 172 |
| 232 | Adolescent | 142 | 5.7K | 125 | 90 |
| 233 | alcoholism | 299 | 5.7K | 36 | 76 |
| 234 | Orthopedics | 162 | 5.6K | 60 | 53 |
| 235 | Host-parasite interactions | 57 | 5.6K | 137 | 122 |
| 236 | Child | 188 | 5.6K | 102 | 114 |
| 237 | Fungi | 125 | 5.5K | 24 | 28 |
| 238 | cell membrane | 120 | 5.5K | 11 | 21 |
| 239 | Membranes | 147 | 5.4K | 96 | 140 |
| 240 | Attention | 163 | 5.4K | 94 | 93 |
| 241 | Learning | 108 | 5.4K | 88 | 90 |
| 242 | Catalysis | 139 | 5.4K | 525 | 571 |
| 243 | Breeding | 125 | 5.3K | 49 | 46 |
| 244 | Clinical Laboratory Science | 317 | 5.3K | 4 | 4 |
| 245 | Radiation | 202 | 5.3K | 26 | 43 |
| 246 | Soil Science | 103 | 5.2K | 133 | 103 |
| 247 | Visual Perception | 162 | 5.2K | 91 | 93 |
| 248 | biological factors | 87 | 5.1K | 84 | 44 |
| 249 | Biomass Energy | 78 | 5.1K | 232 | 210 |
| 250 | Surface Chemistry | 139 | 5.1K | 445 | 423 |
| 251 | Philosophy | 324 | 5.1K | 22 | 30 |
| 252 | vascular diseases | 73 | 5.1K | 41 | 39 |
| 253 | Child psychology | 93 | 5.1K | 183 | 184 |
| 254 | Mass Spectrometry | 102 | 5.0K | 42 | 20 |
| 255 | data collection | 65 | 5.0K | 24 | 43 |
| 256 | Alzheimer's disease | 89 | 5.0K | 153 | 76 |
| 257 | freshwater biology | 104 | 5.0K | 5 | 13 |
| 258 | forest policy | 147 | 5.0K | 6 | 2 |
| 259 | Molecular Microbiology | 59 | 5.0K | 94 | 89 |
| 260 | United Kingdom | 117 | 5.0K | 87 | 111 |
| 261 | behavioral medicine | 105 | 5.0K | 63 | 97 |
| 262 | Sports Medicine | 160 | 4.9K | 147 | 176 |
| 263 | Developmental Psychology | 82 | 4.9K | 84 | 81 |
| 264 | Electrochemistry | 134 | 4.9K | 582 | 394 |
| 265 | Allergy | 68 | 4.9K | 121 | 162 |
| 266 | Dementia | 86 | 4.9K | 150 | 67 |
| 267 | Environmental Law | 65 | 4.8K | 72 | 67 |
| 268 | Water | 94 | 4.8K | 274 | 316 |
| 269 | Pharmacokinetics | 133 | 4.8K | 4 | 7 |
| 270 | Cognition | 117 | 4.8K | 167 | 183 |
| 271 | Entomology | 174 | 4.8K | 97 | 95 |
| 272 | Physical Chemistry | 95 | 4.8K | 248 | 209 |
| 273 | Genetic engineering | 123 | 4.7K | 94 | 137 |
| 274 | Political Science | 101 | 4.7K | 191 | 110 |
| 275 | Paleoclimatology | 107 | 4.7K | 36 | 44 |
| 276 | Social behavior | 133 | 4.6K | 34 | 80 |
| 277 | Linguistics | 204 | 4.5K | 23 | 71 |
| 278 | global environmental change | 81 | 4.5K | 21 | 30 |
| 279 | Drug delivery systems | 64 | 4.5K | 107 | 87 |
| 280 | Electronics | 97 | 4.5K | 493 | 303 |
| 281 | Genetic regulation | 48 | 4.3K | 120 | 105 |
| 282 | Information Systems | 56 | 4.3K | 79 | 29 |
| 283 | Drug design | 89 | 4.3K | 36 | 30 |
| 284 | Organic Chemistry | 120 | 4.3K | 344 | 320 |
| 285 | Medical Physics | 91 | 4.3K | 209 | 145 |
| 286 | environmental exposure | 111 | 4.2K | 54 | 53 |
| 287 | fertility | 101 | 4.2K | 64 | 78 |
| 288 | Infertility | 98 | 4.2K | 60 | 74 |
| 289 | mathematical analysis | 202 | 4.2K | 84 | 58 |
| 290 | Nanostructured Materials | 99 | 4.2K | 451 | 407 |
| 291 | proteins | 93 | 4.1K | 153 | 137 |
| 292 | Statistics | 127 | 4.1K | 265 | 213 |
| 293 | Sociolinguistics | 75 | 4.1K | 4 | 4 |
| 294 | Bioorganic chemistry | 92 | 4.1K | 305 | 269 |
| 295 | Gene expression regulation | 46 | 4.0K | 94 | 84 |
| 296 | adolescence | 75 | 4.0K | 76 | 53 |
| 297 | Molecules | 83 | 4.0K | 167 | 84 |
| 298 | Audiology | 70 | 4.0K | 72 | 42 |
| 299 | gene therapy | 88 | 4.0K | 50 | 67 |
| 300 | Microorganisms | 66 | 3.9K | 47 | 90 |
| 301 | Information Science | 64 | 3.9K | 282 | 169 |
| 302 | Chemotherapy | 83 | 3.9K | 95 | 47 |
| 303 | Social Sciences | 218 | 3.9K | 137 | 212 |
| 304 | Bacterial infections | 49 | 3.8K | 49 | 70 |
| 305 | Urology | 94 | 3.8K | 178 | 144 |
| 306 | Genetic therapy | 105 | 3.8K | 52 | 68 |
| 307 | Electrophoresis | 114 | 3.8K | 46 | 38 |
| 308 | Petrology | 91 | 3.8K | 94 | 127 |
| 309 | Cerebral cortex | 68 | 3.7K | 81 | 96 |
| 310 | Chemical Engineering | 102 | 3.7K | 796 | 835 |
| 311 | Agricultural Ecology | 62 | 3.7K | 76 | 80 |
| 312 | Environmental Toxicology | 84 | 3.7K | 160 | 183 |
| 313 | pain management | 84 | 3.7K | 17 | 10 |
| 314 | Fisheries | 110 | 3.6K | 105 | 99 |
| 315 | Psychosomatic Medicine | 88 | 3.6K | 34 | 56 |
| 316 | Histochemistry | 112 | 3.6K | 13 | 14 |
| 316 | Animal breeding | 109 | 3.6K | 38 | 27 |
| 318 | Food preferences | 70 | 3.6K | 13 | 13 |
| 319 | Optics | 169 | 3.5K | 507 | 496 |
| 319 | Developmental Genetics | 27 | 3.5K | 99 | 89 |
| 321 | Contraception | 108 | 3.5K | 18 | 21 |
| 322 | Diagnostic Imaging | 57 | 3.5K | 266 | 138 |
| 323 | Mineralogy | 94 | 3.5K | 139 | 155 |
| 324 | Optical materials | 63 | 3.5K | 455 | 371 |
| 325 | mycoses | 54 | 3.5K | 33 | 77 |
| 326 | rehabilitation | 95 | 3.5K | 183 | 194 |
| 327 | Environmental pollutants | 112 | 3.4K | 88 | 139 |
| 328 | Stem cells | 79 | 3.4K | 127 | 138 |
| 329 | Population | 88 | 3.4K | 33 | 30 |
| 329 | enzymes | 65 | 3.4K | 119 | 84 |
| 331 | Energy Policy | 49 | 3.4K | 469 | 343 |
| 332 | Gerontology | 109 | 3.4K | 178 | 134 |
| 333 | Medical Oncology | 75 | 3.4K | 202 | 199 |
| 334 | Neurosurgery | 52 | 3.3K | 85 | 49 |
| 335 | Hydrology | 101 | 3.3K | 233 | 271 |
| 336 | Health Policy | 106 | 3.3K | 188 | 187 |
| 337 | Community Psychiatry | 77 | 3.3K | 58 | 62 |
| 338 | Occupational Health | 86 | 3.2K | 47 | 33 |
| 339 | Cybernetics | 38 | 3.2K | 318 | 181 |
| 340 | Economic Development | 62 | 3.2K | 162 | 169 |
| 341 | Cardiovascular diseases | 107 | 3.2K | 102 | 116 |
| 342 | Quality of life | 63 | 3.2K | 102 | 98 |
| 343 | natural products | 30 | 3.2K | 401 | 94 |
| 344 | Meteorites | 69 | 3.1K | 153 | 189 |
| 345 | histological techniques | 70 | 3.1K | 16 | 26 |
| 346 | radiative transfer | 103 | 3.1K | 19 | 34 |
| 347 | Vision | 92 | 3.1K | 51 | 72 |
| 348 | occupational diseases | 84 | 3.1K | 32 | 38 |
| 349 | Human Geography | 79 | 3.1K | 93 | 95 |
| 350 | DNA polymerases | 31 | 3.1K | 50 | 71 |
| 351 | Schizophrenia | 94 | 3.1K | 88 | 118 |
| 351 | drug addiction | 105 | 3.1K | 81 | 117 |
| 353 | Ergonomics | 37 | 3.1K | 182 | 48 |
| 354 | Pharmacogenetics | 60 | 3.1K | 55 | 50 |
| 355 | Adolescent Psychology | 60 | 3.1K | 67 | 54 |
| 356 | Parasitology | 85 | 3.1K | 206 | 156 |
| 357 | Solid State Chemistry | 95 | 3.0K | 285 | 194 |
| 358 | Ecosystem management | 52 | 3.0K | 37 | 34 |
| 359 | Psychiatric Epidemiology | 69 | 3.0K | 13 | 21 |
| 360 | Developing countries | 135 | 3.0K | 96 | 194 |
| 361 | Primary health care | 153 | 3.0K | 56 | 107 |
| 362 | Analytical Biochemistry | 77 | 3.0K | 83 | 95 |
| 363 | Nonlinear Dynamics | 91 | 2.9K | 308 | 281 |
| 364 | Remote Sensing | 85 | 2.9K | 71 | 33 |
| 365 | Proteomics | 44 | 2.9K | 95 | 75 |
| 366 | Cell death | 46 | 2.9K | 162 | 196 |
| 367 | environmental indicators | 60 | 2.9K | 42 | 38 |
| 368 | Green Chemistry | 61 | 2.9K | 224 | 257 |
| 369 | Phylogeny | 55 | 2.9K | 49 | 61 |
| 370 | Economic History | 134 | 2.9K | 237 | 265 |
| 371 | Soil ecology | 76 | 2.9K | 20 | 36 |
| 372 | Proteome | 57 | 2.8K | 100 | 107 |
| 373 | Cellulose | 60 | 2.8K | 30 | 28 |
| 374 | Health | 120 | 2.8K | 139 | 199 |
| 375 | Clinical Immunology | 95 | 2.8K | 55 | 69 |
| 376 | Telecommunication | 59 | 2.8K | 464 | 370 |
| 377 | Information Retrieval | 40 | 2.8K | 24 | 23 |
| 378 | Sports | 120 | 2.8K | 159 | 236 |
| 379 | Biometrics | 60 | 2.8K | 128 | 97 |
| 380 | Chromatography | 102 | 2.8K | 57 | 43 |
| 381 | protein | 43 | 2.8K | 167 | 121 |
| 381 | energy resources | 33 | 2.8K | 245 | 206 |
| 383 | Chronobiology | 45 | 2.8K | 20 | 12 |
| 383 | biological clocks | 45 | 2.8K | 20 | 12 |
| 383 | circadian rhythm | 45 | 2.8K | 20 | 12 |
| 383 | biological rhythms | 45 | 2.8K | 15 | 12 |
| 387 | Circadian rhythms | 40 | 2.7K | 13 | 11 |
| 388 | medical education | 99 | 2.7K | 170 | 170 |
| 389 | miniaturization | 40 | 2.7K | 365 | 344 |
| 390 | viral genetics | 10 | 2.7K | 121 | 91 |
| 391 | Information Technology | 51 | 2.7K | 276 | 224 |
| 392 | Public Policy | 101 | 2.7K | 104 | 151 |
| 393 | drug evaluation | 87 | 2.7K | 24 | 32 |
| 394 | sustainability | 48 | 2.6K | 41 | 81 |
| 395 | Insects | 91 | 2.6K | 69 | 85 |
| 396 | Chromatographic analysis | 98 | 2.6K | 90 | 62 |
| 397 | Computer Science | 46 | 2.6K | 236 | 67 |
| 398 | Molecular cloning | 69 | 2.6K | 76 | 81 |
| 399 | Genetic recombination | 67 | 2.6K | 76 | 80 |
| 399 | Recombinant DNA | 67 | 2.6K | 95 | 92 |
| 401 | Bones | 51 | 2.6K | 63 | 86 |
| 402 | Systems Biology | 89 | 2.6K | 74 | 94 |
| 403 | Emergency Medicine | 116 | 2.6K | 84 | 91 |
| 404 | forestry | 94 | 2.5K | 7 | 8 |
| 405 | psychotherapy | 127 | 2.5K | 73 | 211 |
| 406 | Nanoparticles | 37 | 2.5K | 349 | 203 |
| 407 | Antigens | 82 | 2.5K | 23 | 40 |
| 408 | Youth | 53 | 2.5K | 56 | 54 |
| 409 | Demography | 76 | 2.5K | 34 | 50 |
| 409 | disease outbreaks | 58 | 2.5K | 18 | 35 |
| 409 | Epidemics | 58 | 2.5K | 17 | 34 |
| 412 | Molecular Pharmacology | 70 | 2.5K | 33 | 58 |
| 413 | drug development | 37 | 2.4K | 100 | 144 |
| 414 | Sustainable Engineering | 43 | 2.4K | 235 | 190 |
| 415 | Cognitive Science | 54 | 2.4K | 172 | 224 |
| 416 | Nuclear Fusion | 61 | 2.4K | 96 | 62 |
| 417 | Organometallic chemistry | 93 | 2.4K | 100 | 61 |
| 418 | Regional Planning | 76 | 2.4K | 132 | 138 |
| 419 | Human biology | 35 | 2.4K | 71 | 13 |
| 420 | Speech Disorders | 83 | 2.4K | 115 | 116 |
| 420 | atmosphere | 64 | 2.4K | 28 | 29 |
| 422 | Bacteria | 30 | 2.4K | 31 | 26 |
| 423 | Photochemistry | 49 | 2.3K | 196 | 117 |
| 424 | computer networks | 52 | 2.3K | 415 | 272 |
| 425 | Artificial Intelligence | 83 | 2.3K | 541 | 622 |
| 426 | Paleontology | 85 | 2.3K | 124 | 99 |
| 426 | Vaccines | 72 | 2.3K | 177 | 194 |
| 428 | pollutants | 89 | 2.3K | 94 | 198 |
| 429 | Sun | 64 | 2.3K | 41 | 45 |
| 430 | Chronic diseases | 41 | 2.3K | 97 | 137 |
| 431 | Bioinorganic chemistry | 81 | 2.3K | 108 | 98 |
| 432 | Emergency Medical Services | 102 | 2.3K | 6 | 8 |
| 433 | Educational Technology | 69 | 2.3K | 79 | 92 |
| 434 | Biogeochemical cycles | 23 | 2.2K | 84 | 87 |
| 435 | Birds | 108 | 2.2K | 65 | 79 |
| 436 | Medical innovations | 25 | 2.2K | 173 | 185 |
| 437 | International Relations | 88 | 2.2K | 75 | 68 |
| 438 | Knowledge | 122 | 2.2K | 2 | 11 |
| 439 | Health Information Management | 3 | 2.2K | 319 | 58 |
| 440 | Enzyme | 22 | 2.2K | 60 | 12 |
| 441 | Health Education | 91 | 2.2K | 195 | 205 |
| 442 | Econometrics | 80 | 2.2K | 115 | 179 |
| 443 | Eating Disorders | 50 | 2.2K | 94 | 85 |
| 444 | Microelectronics | 37 | 2.1K | 400 | 351 |
| 445 | Respiration | 81 | 2.1K | 149 | 221 |
| 446 | Ornithology | 99 | 2.1K | 42 | 50 |
| 447 | nuclear magnetic resonance | 80 | 2.1K | 92 | 112 |
| 448 | Radiochemistry | 112 | 2.1K | 29 | 21 |
| 449 | Engineering | 64 | 2.1K | 726 | 501 |
| 450 | rare diseases | 39 | 2.1K | 50 | 32 |
| 451 | Photobiology | 40 | 2.1K | 119 | 58 |
| 452 | management | 78 | 2.1K | 520 | 793 |
| 453 | Dermatology | 82 | 2.0K | 202 | 235 |
| 454 | individual differences | 40 | 2.0K | 7 | 9 |
| 455 | arthritis | 51 | 2.0K | 196 | 260 |
| 456 | Feeding and Eating Disorders | 47 | 2.0K | 99 | 87 |
| 457 | older people | 77 | 2.0K | 197 | 128 |
| 458 | Aquatic ecology | 47 | 2.0K | 62 | 29 |
| 459 | Environmental Chemistry | 69 | 2.0K | 173 | 433 |
| 460 | preventive medicine | 59 | 2.0K | 142 | 180 |
| 461 | Landscape Ecology | 33 | 2.0K | 38 | 35 |
| 462 | Physical fitness | 28 | 2.0K | 185 | 110 |
| 463 | Algae | 40 | 2.0K | 105 | 68 |
| 464 | Geomorphology | 44 | 1.9K | 215 | 229 |
| 465 | Medical Technology | 66 | 1.9K | 85 | 124 |
| 465 | Behavioral Genetics | 39 | 1.9K | 17 | 15 |
| 467 | Raman spectroscopy | 21 | 1.9K | 139 | 24 |
| 468 | mammals | 47 | 1.9K | 90 | 53 |
| 469 | Animal genetics | 66 | 1.9K | 60 | 61 |
| 470 | free radicals | 46 | 1.9K | 178 | 275 |
| 471 | Geodynamics | 42 | 1.9K | 152 | 151 |
| 472 | Wireless Communication Systems | 70 | 1.9K | 349 | 369 |
| 473 | Music | 68 | 1.9K | 46 | 29 |
| 474 | Informatics | 29 | 1.9K | 93 | 62 |
| 475 | animals | 130 | 1.9K | 28 | 65 |
| 476 | voice | 62 | 1.9K | 17 | 15 |
| 477 | Quality Control | 89 | 1.9K | 55 | 131 |
| 478 | Parasites | 50 | 1.9K | 181 | 137 |
| 479 | gastrointestinal tract | 27 | 1.8K | 14 | 21 |
| 480 | Nursing | 83 | 1.8K | 144 | 129 |
| 481 | Immunochemistry | 51 | 1.8K | 56 | 51 |
| 482 | Mobile Computing | 66 | 1.8K | 79 | 101 |
| 483 | Neuropsychiatry | 52 | 1.8K | 67 | 72 |
| 484 | Archaeology | 96 | 1.8K | 120 | 151 |
| 485 | Health Services Research | 93 | 1.8K | 132 | 208 |
| 486 | Electrophysiology | 61 | 1.8K | 84 | 65 |
| 486 | Familial diseases | 37 | 1.8K | 4 | 2 |
| 488 | Radiobiology | 52 | 1.8K | 195 | 216 |
| 489 | educational planning | 32 | 1.8K | 26 | 20 |
| 490 | Land use | 47 | 1.7K | 76 | 85 |
| 491 | Psychoneuroimmunology | 18 | 1.7K | 141 | 99 |
| 491 | Neuroimmunology | 18 | 1.7K | 173 | 109 |
| 493 | Jurisprudence | 84 | 1.7K | 45 | 48 |
| 494 | consumers | 35 | 1.7K | 8 | 10 |
| 495 | Geriatric Psychiatry | 37 | 1.7K | 119 | 83 |
| 496 | Social problems | 23 | 1.7K | 120 | 81 |
| 497 | Antibodies | 49 | 1.7K | 30 | 41 |
| 498 | Signal Transduction | 34 | 1.7K | 260 | 301 |
| 499 | Carcinogenesis | 39 | 1.7K | 114 | 116 |
| 500 | city planning | 67 | 1.7K | 161 | 201 |
| 501 | Microscopy | 46 | 1.7K | 154 | 121 |
| 502 | Spine | 42 | 1.7K | 96 | 112 |
| 503 | Parenteral nutrition | 38 | 1.6K | 148 | 187 |
| 504 | Food additives | 43 | 1.6K | 117 | 166 |
| 505 | Retina | 10 | 1.6K | 46 | 54 |
| 505 | eye | 10 | 1.6K | 53 | 54 |
| 507 | Adolescent Medicine | 21 | 1.6K | 126 | 128 |
| 508 | ethanol | 82 | 1.6K | 5 | 21 |
| 509 | Marine Pollution | 34 | 1.6K | 202 | 173 |
| 510 | polar regions | 72 | 1.6K | 20 | 27 |
| 511 | Nuclear Chemistry | 71 | 1.6K | 66 | 43 |
| 512 | Functional Analysis | 65 | 1.6K | 127 | 96 |
| 513 | Magnetic Resonance Spectroscopy | 67 | 1.6K | 127 | 155 |
| 513 | language | 47 | 1.6K | 80 | 105 |
| 515 | Cosmochemistry | 49 | 1.6K | 68 | 111 |
| 516 | Oxidation-reduction | 20 | 1.6K | 188 | 189 |
| 517 | Animal Nutrition | 71 | 1.6K | 44 | 55 |
| 518 | Information Theory | 48 | 1.6K | 218 | 219 |
| 519 | heredity | 44 | 1.5K | 45 | 38 |
| 520 | Planetary Science | 60 | 1.5K | 40 | 39 |
| 521 | Bipolar Disorder | 24 | 1.5K | 62 | 56 |
| 522 | economic policy | 78 | 1.5K | 232 | 254 |
| 523 | Paleoecology | 66 | 1.5K | 93 | 183 |
| 524 | Intercultural Communication | 46 | 1.5K | 7 | 16 |
| 525 | Substance Abuse | 83 | 1.5K | 141 | 205 |
| 526 | cytokines | 19 | 1.5K | 309 | 144 |
| 527 | Signal Processing | 21 | 1.5K | 991 | 603 |
| 528 | nuclear magnetic resonance spectroscopy | 66 | 1.5K | 24 | 48 |
| 529 | biofuels | 19 | 1.5K | 40 | 33 |
| 530 | Immunogenetics | 64 | 1.5K | 26 | 54 |
| 531 | Hemodynamics | 24 | 1.5K | 154 | 148 |
| 532 | curriculum evaluation | 46 | 1.5K | 9 | 11 |
| 533 | brain mapping | 31 | 1.5K | 113 | 130 |
| 534 | Anxiety Disorders | 21 | 1.5K | 129 | 121 |
| 535 | Social Change | 31 | 1.5K | 95 | 183 |
| 536 | Anthropology | 64 | 1.5K | 215 | 199 |
| 537 | Human-Computer Interaction | 54 | 1.5K | 103 | 163 |
| 538 | Nanostructures | 20 | 1.5K | 632 | 418 |
| 539 | Antioxidants | 24 | 1.5K | 104 | 148 |
| 540 | Early Childhood Education | 69 | 1.5K | 16 | 28 |
| 541 | Anxiety | 20 | 1.4K | 132 | 121 |
| 542 | Pharmacognosy | 30 | 1.4K | 436 | 362 |
| 543 | Business Ethics | 17 | 1.4K | 298 | 253 |
| 544 | disease vectors | 49 | 1.4K | 70 | 99 |
| 544 | child behavior | 12 | 1.4K | 134 | 44 |
| 546 | Urban Policy | 44 | 1.4K | 58 | 71 |
| 547 | children | 17 | 1.4K | 116 | 49 |
| 548 | Radio | 24 | 1.4K | 478 | 352 |
| 549 | carcinogens | 25 | 1.4K | 176 | 146 |
| 550 | Growth factors | 13 | 1.4K | 31 | 30 |
| 551 | Depression | 18 | 1.4K | 67 | 69 |
| 552 | Rheumatology | 63 | 1.4K | 125 | 263 |
| 553 | Intellectual disability | 43 | 1.4K | 116 | 115 |
| 554 | Digestive system diseases | 54 | 1.4K | 103 | 117 |
| 555 | Combinatorial chemistry | 24 | 1.4K | 141 | 144 |
| 555 | Aquaculture | 50 | 1.4K | 231 | 257 |
| 557 | Language Disorders | 67 | 1.4K | 99 | 119 |
| 558 | food handling | 70 | 1.4K | 25 | 90 |
| 559 | mutagens | 23 | 1.4K | 171 | 149 |
| 560 | Metallurgy | 39 | 1.3K | 530 | 466 |
| 561 | Speech | 44 | 1.3K | 140 | 155 |
| 562 | Neurotransmitters | 37 | 1.3K | 55 | 51 |
| 563 | glycoproteins | 48 | 1.3K | 21 | 46 |
| 563 | Glycoconjugates | 48 | 1.3K | 21 | 46 |
| 563 | glycolipids | 48 | 1.3K | 21 | 46 |
| 566 | Sustainable agriculture | 15 | 1.3K | 187 | 67 |
| 567 | Heart Failure | 9 | 1.3K | 169 | 88 |
| 568 | Cytokine | 12 | 1.3K | 90 | 45 |
| 569 | Molecular Spectroscopy | 46 | 1.3K | 242 | 205 |
| 570 | organization | 22 | 1.3K | 203 | 255 |
| 571 | Psycholinguistics | 46 | 1.3K | 142 | 220 |
| 572 | Image Processing | 24 | 1.3K | 744 | 541 |
| 573 | Social policy | 70 | 1.3K | 51 | 72 |
| 574 | wood | 37 | 1.3K | 66 | 42 |
| 575 | Vocational guidance | 25 | 1.3K | 245 | 222 |
| 576 | Hemostasis | 61 | 1.3K | 36 | 59 |
| 577 | Positive Psychology | 3 | 1.3K | 146 | 28 |
| 578 | Social interaction | 46 | 1.3K | 11 | 26 |
| 579 | Communication and Culture | 51 | 1.3K | 3 | 3 |
| 580 | Globalization | 59 | 1.2K | 13 | 40 |
| 581 | risk factors | 45 | 1.2K | 59 | 101 |
| 582 | Consumer education | 44 | 1.2K | 5 | 31 |
| 583 | Enteral nutrition | 27 | 1.2K | 139 | 178 |
| 584 | Radiation effects | 38 | 1.2K | 21 | 52 |
| 585 | Developmental Neurobiology | 28 | 1.2K | 41 | 24 |
| 586 | peace | 25 | 1.2K | 93 | 81 |
| 587 | Rural Development | 43 | 1.2K | 21 | 55 |
| 588 | Elections | 38 | 1.2K | 28 | 31 |
| 588 | Gastrointestinal diseases | 22 | 1.2K | 81 | 20 |
| 590 | Microbial Genetics | 28 | 1.2K | 32 | 46 |
| 590 | Australia | 75 | 1.2K | 130 | 184 |
| 592 | Smoking | 45 | 1.2K | 107 | 143 |
| 593 | Autoimmunity | 34 | 1.2K | 104 | 166 |
| 594 | Journalism | 58 | 1.2K | 21 | 31 |
| 595 | Bryology | 43 | 1.2K | 6 | 6 |
| 596 | phytopathogenic bacteria | 27 | 1.2K | 25 | 46 |
| 596 | Genes | 38 | 1.2K | 133 | 128 |
| 598 | Mental Health | 69 | 1.2K | 164 | 237 |
| 599 | Clinical Biochemistry | 31 | 1.2K | 207 | 184 |
| 600 | China | 77 | 1.2K | 329 | 442 |
| 601 | collagen | 24 | 1.2K | 25 | 48 |
| 602 | Veterinary Pathology | 50 | 1.2K | 17 | 11 |
| 603 | Nuclear Medicine | 31 | 1.2K | 205 | 175 |
| 603 | calcification | 33 | 1.2K | 51 | 77 |
| 605 | child abuse | 30 | 1.2K | 151 | 177 |
| 606 | Microbial Biotechnology | 30 | 1.2K | 87 | 73 |
| 607 | Otolaryngology | 41 | 1.1K | 78 | 82 |
| 607 | Agronomy | 11 | 1.1K | 146 | 107 |
| 609 | Plant Taxonomy | 113 | 1.1K | 5 | 51 |
| 610 | Culture | 108 | 1.1K | 27 | 91 |
| 611 | Database Management | 28 | 1.1K | 172 | 161 |
| 612 | Inflammation | 31 | 1.1K | 171 | 238 |
| 613 | Extracellular matrix | 22 | 1.1K | 25 | 49 |
| 614 | marketing | 39 | 1.1K | 426 | 573 |
| 615 | urban forestry | 31 | 1.1K | 8 | 10 |
| 616 | Business | 42 | 1.1K | 441 | 754 |
| 617 | Long-Term Care | 33 | 1.1K | 65 | 104 |
| 617 | Long-term care facilities | 33 | 1.1K | 64 | 104 |
| 619 | epilepsy | 39 | 1.1K | 111 | 123 |
| 620 | Criminology | 62 | 1.1K | 115 | 174 |
| 621 | Physical Therapy | 19 | 1.1K | 390 | 271 |
| 621 | behavior modification | 2 | 1.1K | 448 | 114 |
| 623 | Forensic Genetics | 22 | 1.1K | 41 | 36 |
| 624 | Plant tissue culture | 43 | 1.1K | 44 | 70 |
| 625 | Kidney diseases | 27 | 1.1K | 168 | 154 |
| 626 | Tropical Medicine | 63 | 1.1K | 152 | 245 |
| 627 | System analysis | 47 | 1.1K | 416 | 466 |
| 628 | Plant breeding | 36 | 1.1K | 86 | 86 |
| 629 | Political Participation | 33 | 1.1K | 26 | 39 |
| 630 | Infrared spectroscopy | 9 | 1.1K | 84 | 6 |
| 631 | Sound | 19 | 1.1K | 313 | 140 |
| 632 | internet | 31 | 1.0K | 311 | 338 |
| 633 | Paleogeography | 31 | 1.0K | 208 | 233 |
| 634 | Cosmology | 18 | 1.0K | 180 | 116 |
| 635 | scientific societies | 42 | 1.0K | 69 | 101 |
| 636 | Software Engineering | 24 | 1.0K | 252 | 205 |
| 637 | hydrocolloids | 27 | 1.0K | 121 | 200 |
| 638 | Organizational Sociology | 17 | 1.0K | 71 | 34 |
| 638 | Elderly | 56 | 1.0K | 196 | 99 |
| 640 | Carbohydrates | 33 | 1.0K | 28 | 62 |
| 641 | Plant genetic engineering | 39 | 1.0K | 111 | 212 |
| 641 | Metals | 27 | 1.0K | 590 | 543 |
| 643 | Geobiology | 25 | 1.0K | 65 | 61 |
| 644 | Research Design | 32 | 1.0K | 220 | 267 |
| 645 | Plant cell culture | 26 | 1.0K | 70 | 74 |
| 646 | Molecular Imaging | 17 | 995 | 185 | 159 |
| 647 | Neurolinguistics | 23 | 986 | 71 | 90 |
| 648 | Organizational Behavior | 16 | 985 | 184 | 189 |
| 649 | Logic | 54 | 983 | 10 | 17 |
| 650 | actuators | 25 | 982 | 684 | 648 |
| 650 | educational innovations | 31 | 982 | 42 | 52 |
| 650 | transducers | 25 | 982 | 684 | 648 |
| 653 | Nutrition physiology | 17 | 980 | 191 | 136 |
| 654 | conflict management | 13 | 972 | 66 | 40 |
| 655 | Cross-Cultural Studies | 25 | 970 | 73 | 58 |
| 656 | Environmental Psychology | 11 | 967 | 106 | 85 |
| 657 | International security | 12 | 960 | 71 | 55 |
| 658 | Restoration Ecology | 20 | 956 | 63 | 52 |
| 659 | Ecological Genetics | 44 | 955 | 24 | 31 |
| 660 | Medicinal plants | 15 | 950 | 471 | 356 |
| 661 | software | 31 | 949 | 117 | 162 |
| 662 | Environmental Economics | 35 | 948 | 11 | 41 |
| 663 | Genetic epidemiology | 26 | 942 | 42 | 44 |
| 664 | Public opinion | 21 | 941 | 66 | 58 |
| 665 | Oligosaccharide | 30 | 940 | 20 | 49 |
| 666 | Chromosomes | 38 | 939 | 112 | 202 |
| 667 | Radiology | 42 | 938 | 215 | 184 |
| 667 | Seaweed | 19 | 938 | 150 | 124 |
| 669 | Computer Vision | 12 | 936 | 501 | 338 |
| 670 | Environmental Geology | 26 | 929 | 356 | 336 |
| 671 | Autoantibodies | 30 | 917 | 60 | 97 |
| 671 | Autoimmune diseases | 30 | 917 | 79 | 110 |
| 673 | health services accessibility | 38 | 915 | 131 | 149 |
| 674 | Public Administration | 42 | 913 | 256 | 280 |
| 674 | Toxins | 24 | 913 | 116 | 104 |
| 676 | Soil fertility | 18 | 909 | 60 | 68 |
| 677 | Semiconductors | 33 | 907 | 514 | 338 |
| 677 | Medical Ethics | 41 | 907 | 168 | 122 |
| 679 | venom | 23 | 905 | 107 | 92 |
| 680 | Ethnology | 67 | 903 | 123 | 154 |
| 681 | baking | 18 | 902 | 40 | 25 |
| 682 | Emotions | 18 | 901 | 184 | 188 |
| 683 | Nuclear Engineering | 73 | 898 | 202 | 237 |
| 683 | probabilities | 70 | 898 | 163 | 185 |
| 683 | Recycling | 12 | 898 | 194 | 191 |
| 686 | cloning | 19 | 894 | 132 | 216 |
| 687 | space environment | 13 | 889 | 58 | 29 |
| 688 | Radiography | 11 | 882 | 327 | 283 |
| 688 | soil management | 22 | 882 | 98 | 121 |
| 690 | Law | 77 | 880 | 102 | 114 |
| 691 | Criminal psychology | 31 | 877 | 171 | 177 |
| 692 | toxicity testing | 19 | 876 | 78 | 49 |
| 693 | Plastics | 28 | 867 | 390 | 300 |
| 694 | auditory perception | 27 | 866 | 47 | 88 |
| 695 | Geriatric Pharmacology | 25 | 864 | 12 | 20 |
| 696 | Ethnic relations | 48 | 861 | 18 | 30 |
| 697 | Transportation | 18 | 856 | 595 | 471 |
| 697 | bryophytes | 20 | 856 | 7 | 2 |
| 699 | eugenics | 27 | 853 | 64 | 67 |
| 700 | Ultrasonics | 25 | 850 | 273 | 296 |
| 701 | Wildlife management | 35 | 844 | 93 | 76 |
| 702 | drug abuse | 119 | 843 | 18 | 95 |
| 703 | Consumer Protection | 24 | 841 | 11 | 22 |
| 703 | cryosphere | 34 | 841 | 65 | 113 |
| 703 | RNA | 16 | 841 | 135 | 129 |
| 706 | violence | 34 | 835 | 187 | 257 |
| 707 | Hemophilia | 51 | 833 | 29 | 63 |
| 708 | Environmental Education | 38 | 831 | 9 | 41 |
| 709 | Radioisotopes | 75 | 829 | 53 | 101 |
| 710 | Asthma | 26 | 826 | 76 | 71 |
| 711 | Customer Relations | 23 | 825 | 3 | 4 |
| 712 | Ultrasound | 22 | 824 | 186 | 144 |
| 713 | Pregnancy | 37 | 820 | 92 | 132 |
| 714 | Muscles | 26 | 817 | 170 | 224 |
| 714 | women | 30 | 817 | 104 | 46 |
| 716 | Social work | 46 | 810 | 265 | 276 |
| 717 | food contamination | 33 | 807 | 89 | 83 |
| 718 | Plant Biotechnology | 24 | 804 | 132 | 149 |
| 719 | Cytoskeleton | 9 | 803 | 112 | 39 |
| 720 | Geometry | 71 | 802 | 103 | 107 |
| 721 | Bioremediation | 16 | 796 | 140 | 102 |
| 721 | Cardiac electrophysiology | 11 | 796 | 85 | 44 |
| 721 | arrhythmia | 11 | 796 | 85 | 44 |
| 724 | Renewable Energy Sources | 15 | 795 | 1183 | 1323 |
| 724 | Waste management | 24 | 795 | 307 | 209 |
| 726 | Transport | 22 | 794 | 107 | 125 |
| 726 | Economic Assistance | 36 | 794 | 71 | 210 |
| 728 | Organometallic compounds | 34 | 792 | 266 | 336 |
| 729 | election law | 23 | 790 | 36 | 39 |
| 729 | Voting | 23 | 790 | 34 | 39 |
| 731 | Discourse Analysis | 40 | 788 | 6 | 52 |
| 732 | Biodegradation | 14 | 787 | 144 | 90 |
| 732 | Water quality management | 26 | 787 | 441 | 350 |
| 734 | Taste | 34 | 786 | 19 | 25 |
| 734 | smell | 34 | 786 | 19 | 25 |
| 736 | Ventilation | 36 | 783 | 42 | 82 |
| 737 | Synchrotron Radiation | 30 | 781 | 37 | 35 |
| 738 | Nephrology | 15 | 780 | 152 | 150 |
| 738 | Europa | 34 | 780 | 48 | 88 |
| 740 | Community Psychology | 34 | 778 | 72 | 170 |
| 741 | Plant Genetics | 17 | 775 | 206 | 275 |
| 741 | race relations | 33 | 775 | 67 | 83 |
| 743 | Cheminformatics | 9 | 774 | 75 | 95 |
| 744 | Algorithms | 37 | 771 | 38 | 65 |
| 744 | indoor air pollution | 34 | 771 | 25 | 70 |
| 744 | Sick building syndrome | 34 | 771 | 25 | 70 |
| 747 | Lung Transplantation | 36 | 769 | 66 | 111 |
| 747 | Child welfare | 34 | 769 | 213 | 215 |
| 747 | Heart transplantation | 36 | 769 | 66 | 111 |
| 750 | Natural resources | 30 | 768 | 118 | 203 |
| 750 | international cooperation | 31 | 768 | 74 | 125 |
| 752 | Nuclear Energy | 27 | 767 | 231 | 157 |
| 753 | counseling | 30 | 759 | 339 | 338 |
| 754 | Morphology | 28 | 758 | 159 | 136 |
| 754 | Documentation | 8 | 758 | 112 | 38 |
| 756 | Geriatric Oncology | 16 | 756 | 142 | 98 |
| 757 | air quality management | 33 | 755 | 20 | 71 |
| 758 | Higher Education | 26 | 754 | 93 | 74 |
| 759 | Chemical Ecology | 16 | 753 | 141 | 122 |
| 760 | Biosensors | 14 | 752 | 518 | 556 |
| 760 | radioactive waste | 13 | 752 | 246 | 285 |
| 760 | Hazardous waste | 13 | 752 | 317 | 308 |
| 763 | Social History | 34 | 744 | 41 | 27 |
| 764 | Computational Linguistics | 35 | 743 | 15 | 15 |
| 764 | Development | 31 | 743 | 122 | 245 |
| 766 | health services | 18 | 741 | 306 | 205 |
| 767 | Feminist theory | 76 | 740 | 2 | 14 |
| 768 | pheromones | 15 | 739 | 135 | 122 |
| 769 | Crystallography | 93 | 738 | 124 | 247 |
| 770 | Biomass | 20 | 737 | 99 | 154 |
| 771 | Ecological Engineering | 17 | 736 | 102 | 124 |
| 772 | Evolutionary Genetics | 16 | 735 | 101 | 62 |
| 772 | Molecular Epidemiology | 16 | 735 | 101 | 62 |
| 772 | crime | 52 | 735 | 64 | 148 |
| 775 | Periglacial processes | 14 | 733 | 20 | 25 |
| 775 | Permafrost | 14 | 733 | 20 | 25 |
| 775 | Frozen ground | 14 | 733 | 20 | 25 |
| 778 | Forecasting | 28 | 729 | 41 | 96 |
| 778 | cell interaction | 26 | 729 | 198 | 318 |
| 780 | Happiness | 13 | 724 | 68 | 53 |
| 780 | industrial waste | 14 | 724 | 248 | 300 |
| 782 | Lipid metabolism | 26 | 715 | 30 | 94 |
| 782 | Lipid | 26 | 715 | 32 | 94 |
| 784 | Nutrigenomics | 2 | 714 | 112 | 13 |
| 785 | Astrocytes | 13 | 713 | 146 | 187 |
| 785 | Bioelectronics | 12 | 713 | 463 | 501 |
| 787 | Patient education | 23 | 712 | 139 | 175 |
| 788 | Adult Education | 24 | 710 | 94 | 34 |
| 789 | Ferroelectricity | 16 | 707 | 390 | 146 |
| 790 | finance | 20 | 703 | 872 | 703 |
| 791 | Speech Perception | 19 | 697 | 70 | 95 |
| 792 | Neuropharmacology | 18 | 696 | 140 | 119 |
| 793 | Travel | 32 | 694 | 90 | 118 |
| 794 | Human Rights | 32 | 691 | 58 | 61 |
| 795 | Mathematics Education | 15 | 690 | 111 | 46 |
| 796 | Environmental risk assessment | 9 | 689 | 121 | 29 |
| 797 | environmental issues | 20 | 688 | 49 | 56 |
| 798 | bioclimatology | 20 | 685 | 167 | 160 |
| 799 | Translation | 18 | 682 | 14 | 1 |
| 800 | Horticulture | 30 | 676 | 113 | 97 |
| 801 | Water Purification | 19 | 675 | 303 | 199 |
| 802 | Entrepreneurship | 8 | 673 | 534 | 430 |
| 803 | Fishery resources | 23 | 672 | 98 | 124 |
| 803 | animal diseases | 39 | 672 | 56 | 80 |
| 803 | catalytic activity | 11 | 672 | 268 | 183 |
| 806 | Bioethics | 40 | 671 | 132 | 129 |
| 806 | human development | 30 | 671 | 150 | 258 |
| 808 | Randomized Controlled Trials | 39 | 669 | 144 | 148 |
| 809 | tillage | 13 | 667 | 121 | 131 |
| 810 | Radio frequency | 12 | 663 | 182 | 108 |
| 810 | Zoonoses | 26 | 663 | 14 | 28 |
| 812 | Sea | 20 | 661 | 102 | 115 |
| 813 | Philosophy of Mind | 15 | 659 | 46 | 29 |
| 813 | Groundwater | 25 | 659 | 96 | 116 |
| 815 | Transgenic plants | 22 | 654 | 58 | 88 |
| 816 | Humanities | 66 | 653 | 48 | 173 |
| 817 | Nonprofit organizations | 13 | 650 | 75 | 45 |
| 818 | Orthopedic Surgery | 17 | 647 | 200 | 160 |
| 819 | Foodborne diseases | 21 | 645 | 33 | 30 |
| 820 | Developmental Disabilities | 23 | 644 | 264 | 369 |
| 821 | Oral Medicine | 24 | 641 | 115 | 68 |
| 822 | Malaria | 18 | 634 | 166 | 163 |
| 822 | environmental control | 7 | 634 | 68 | 24 |
| 824 | health planning | 35 | 630 | 449 | 522 |
| 825 | Solar Energy | 9 | 629 | 976 | 636 |
| 826 | Neonatology | 37 | 627 | 42 | 101 |
| 826 | Neuromuscular diseases | 20 | 627 | 161 | 169 |
| 826 | gene transfer | 19 | 627 | 18 | 27 |
| 826 | genetic transformation | 19 | 627 | 18 | 27 |
| 830 | Japan | 27 | 626 | 362 | 303 |
| 831 | innovation | 13 | 623 | 190 | 313 |
| 832 | Decision making | 19 | 621 | 421 | 426 |
| 833 | Serology | 12 | 620 | 121 | 64 |
| 834 | Educational Sociology | 24 | 617 | 32 | 26 |
| 835 | Demographic research | 24 | 615 | 17 | 47 |
| 836 | Biofilms | 9 | 614 | 25 | 8 |
| 837 | Menopause | 19 | 611 | 50 | 48 |
| 838 | Post-traumatic stress disorder | 17 | 610 | 237 | 259 |
| 839 | DNA methylation | 15 | 609 | 39 | 63 |
| 840 | Endocrine glands | 7 | 606 | 110 | 119 |
| 841 | Genetic disorders | 22 | 602 | 105 | 120 |
| 842 | Plant Pathology | 39 | 599 | 6 | 19 |
| 842 | Fertilizers | 17 | 599 | 85 | 68 |
| 844 | Antibacterial agents | 14 | 596 | 171 | 166 |
| 845 | Soft Condensed Matter | 16 | 589 | 418 | 379 |
| 846 | Voice Disorders | 21 | 588 | 4 | 2 |
| 847 | Applied Linguistics | 40 | 586 | 45 | 98 |
| 847 | Learning disabilities | 25 | 586 | 203 | 229 |
| 849 | dietary supplements | 21 | 583 | 128 | 181 |
| 849 | Surface properties | 21 | 583 | 233 | 383 |
| 851 | Organ transplantation | 33 | 581 | 44 | 46 |
| 852 | Teratology | 16 | 577 | 57 | 68 |
| 852 | Forensic Psychiatry | 24 | 577 | 113 | 107 |
| 854 | biopolymers | 19 | 574 | 394 | 417 |
| 855 | Asia | 43 | 570 | 414 | 574 |
| 856 | Quantum Optics | 27 | 569 | 179 | 198 |
| 857 | flavor | 23 | 568 | 20 | 22 |
| 858 | Yeast | 21 | 567 | 59 | 119 |
| 859 | Ethics | 39 | 564 | 114 | 160 |
| 859 | Synaptic Transmission | 26 | 564 | 66 | 119 |
| 861 | school-to-work transition | 13 | 561 | 9 | 5 |
| 862 | water supply | 15 | 559 | 324 | 369 |
| 863 | Physical organic chemistry | 29 | 558 | 310 | 421 |
| 864 | Multicultural Education | 22 | 552 | 37 | 48 |
| 865 | Religious Education | 50 | 546 | 2 | 2 |
| 866 | Pharmacy management | 27 | 541 | 38 | 35 |
| 867 | Industrial Safety | 21 | 540 | 272 | 309 |
| 868 | Comparative Physiology | 25 | 536 | 186 | 279 |
| 869 | Career development | 20 | 534 | 52 | 37 |
| 870 | Atomic spectroscopy | 27 | 533 | 278 | 320 |
| 871 | Differential Equations | 29 | 529 | 220 | 274 |
| 871 | Family | 26 | 529 | 242 | 280 |
| 873 | Chemical processes | 6 | 526 | 349 | 98 |
| 874 | Gene library | 9 | 525 | 20 | 9 |
| 875 | Agricultural Engineering | 18 | 519 | 83 | 99 |
| 876 | Political Parties | 16 | 517 | 32 | 40 |
| 877 | Small Business | 9 | 515 | 370 | 464 |
| 878 | Automation | 23 | 513 | 792 | 1025 |
| 879 | Multiculturalism | 47 | 510 | 2 | 1 |
| 880 | International Finance | 25 | 505 | 474 | 624 |
| 881 | Soviet Union | 37 | 500 | 44 | 29 |
| 882 | ethnicity | 42 | 499 | 39 | 95 |
| 882 | Ethnic Conflict | 19 | 499 | 36 | 56 |
| 882 | forced migration | 19 | 499 | 36 | 56 |
| 885 | Tourism | 19 | 498 | 517 | 775 |
| 886 | Internet of Things | 17 | 494 | 386 | 460 |
| 887 | Popular culture | 35 | 493 | 25 | 30 |
| 887 | technical education | 30 | 493 | 63 | 97 |
| 889 | Dentistry | 22 | 491 | 176 | 152 |
| 890 | Agricultural Science | 3 | 490 | 200 | 125 |
| 890 | Palliative Care | 17 | 490 | 234 | 195 |
| 892 | Chemical analysis | 21 | 489 | 257 | 361 |
| 893 | Hearing | 30 | 488 | 150 | 197 |
| 894 | Numerical Analysis | 40 | 485 | 532 | 719 |
| 895 | Amyloidosis | 22 | 483 | 15 | 32 |
| 896 | soil conservation | 23 | 482 | 100 | 199 |
| 896 | Microbial Metabolism | 12 | 482 | 14 | 26 |
| 898 | Theology | 125 | 480 | 19 | 12 |
| 899 | Digital Media | 16 | 478 | 23 | 32 |
| 899 | molecular design | 14 | 478 | 53 | 63 |
| 901 | Protein engineering | 11 | 477 | 59 | 62 |
| 902 | Global Health | 17 | 476 | 284 | 214 |
| 903 | Climate | 16 | 475 | 123 | 180 |
| 904 | locomotion | 10 | 470 | 284 | 208 |
| 904 | posture | 10 | 470 | 284 | 208 |
| 904 | gait | 10 | 470 | 284 | 208 |
| 904 | walking | 10 | 470 | 284 | 208 |
| 908 | Pancreatic diseases | 23 | 469 | 46 | 83 |
| 909 | Vocational Education | 21 | 468 | 123 | 129 |
| 909 | European Union | 10 | 468 | 53 | 34 |
| 911 | Political Psychology | 10 | 467 | 148 | 144 |
| 912 | Job satisfaction | 8 | 464 | 29 | 54 |
| 912 | Mental Health Services | 21 | 464 | 344 | 369 |
| 912 | cell movement | 3 | 464 | 224 | 81 |
| 912 | Work | 8 | 464 | 153 | 77 |
| 912 | job stress | 8 | 464 | 29 | 54 |
| 917 | Laser Spectroscopy | 22 | 463 | 191 | 211 |
| 918 | industrial hygiene | 28 | 462 | 154 | 131 |
| 918 | Continuing Education | 16 | 462 | 103 | 35 |
| 920 | Oral Pathology | 12 | 460 | 11 | 16 |
| 921 | Political Sociology | 35 | 458 | 34 | 149 |
| 921 | blood transfusion | 23 | 458 | 149 | 166 |
| 921 | Personality Assessment | 3 | 458 | 535 | 273 |
| 921 | Aggression | 15 | 458 | 143 | 195 |
| 925 | Precision medicine | 12 | 457 | 60 | 35 |
| 926 | liver | 13 | 456 | 65 | 46 |
| 927 | cosmic rays | 18 | 455 | 105 | 90 |
| 927 | prostaglandins | 27 | 455 | 51 | 111 |
| 929 | Game Theory | 17 | 452 | 168 | 152 |
| 930 | Nanoelectronics | 19 | 451 | 206 | 135 |
| 931 | Forensic Pathology | 11 | 448 | 31 | 8 |
| 932 | cultural pluralism | 28 | 445 | 13 | 44 |
| 933 | Mass Media | 35 | 443 | 86 | 98 |
| 933 | families | 32 | 443 | 156 | 226 |
| 935 | Analytical Toxicology | 16 | 442 | 26 | 24 |
| 935 | Ocean Engineering | 20 | 442 | 630 | 743 |
| 937 | world | 10 | 440 | 315 | 383 |
| 938 | Cognitive Psychology | 23 | 439 | 38 | 74 |
| 938 | civil service | 8 | 439 | 183 | 126 |
| 940 | reforestation | 17 | 437 | 20 | 24 |
| 940 | afforestation | 17 | 437 | 20 | 24 |
| 942 | Women's health | 23 | 432 | 271 | 350 |
| 943 | Hematopoietic stem cell transplantation | 10 | 431 | 143 | 151 |
| 943 | Simulation Methods | 18 | 431 | 209 | 173 |
| 945 | Systems Analysis | 12 | 429 | 453 | 283 |
| 945 | Evolutionary Psychology | 10 | 429 | 40 | 17 |
| 947 | Surface-Active Agents | 19 | 427 | 240 | 470 |
| 948 | civil rights | 16 | 426 | 74 | 54 |
| 948 | Histocompatibility Testing | 20 | 426 | 75 | 112 |
| 950 | Cell communication | 11 | 425 | 167 | 239 |
| 951 | Language Acquisition | 23 | 424 | 23 | 51 |
| 952 | Nonlinear functional analysis | 11 | 423 | 563 | 312 |
| 953 | Respiratory system | 15 | 420 | 152 | 204 |
| 954 | Morphogenesis | 12 | 418 | 2 | 9 |
| 955 | Feminism | 45 | 416 | 32 | 131 |
| 956 | industrial relations | 21 | 414 | 232 | 239 |
| 956 | Agricultural systems | 10 | 414 | 112 | 135 |
| 958 | cultural policy | 27 | 413 | 33 | 29 |
| 958 | Continental shelf | 4 | 413 | 307 | 141 |
| 958 | Classroom Environment | 11 | 413 | 5 | 7 |
| 961 | Political Geography | 22 | 412 | 45 | 93 |
| 962 | Databases | 13 | 410 | 149 | 148 |
| 963 | Marine Ecology | 29 | 407 | 130 | 229 |
| 963 | Dynamics | 22 | 407 | 477 | 451 |
| 965 | Computational Chemistry | 14 | 405 | 203 | 284 |
| 965 | Human evolution | 19 | 405 | 111 | 216 |
| 967 | plankton | 16 | 404 | 21 | 34 |
| 967 | Quantum theory | 23 | 404 | 285 | 343 |
| 969 | Land Use Planning | 9 | 403 | 149 | 162 |
| 969 | Oxidative stress | 9 | 403 | 378 | 535 |
| 969 | Biological Systems | 11 | 403 | 132 | 128 |
| 972 | Phonetics | 26 | 402 | 53 | 111 |
| 972 | Radio waves | 8 | 402 | 514 | 419 |
| 974 | Health promotion | 17 | 400 | 364 | 386 |
| 975 | Ore deposits | 23 | 399 | 125 | 211 |
| 976 | Mitochondria | 9 | 398 | 52 | 77 |
| 977 | Multivariate Analysis | 12 | 397 | 214 | 171 |
| 978 | Industrial Policy | 14 | 395 | 137 | 178 |
| 979 | Stochastic Processes | 22 | 388 | 176 | 202 |
| 980 | X-ray spectroscopy | 8 | 387 | 77 | 18 |
| 980 | Composite Materials | 11 | 387 | 1419 | 1464 |
| 982 | International Law | 77 | 386 | 7 | 19 |
| 982 | musculoskeletal system | 8 | 386 | 42 | 30 |
| 984 | Genetic testing | 15 | 385 | 43 | 11 |
| 984 | Mechanics | 20 | 385 | 388 | 393 |
| 984 | Oligosaccharides | 18 | 385 | 27 | 50 |
| 987 | Educational Change | 11 | 384 | 7 | 10 |
| 988 | motivation | 7 | 382 | 192 | 157 |
| 989 | Autism | 14 | 381 | 243 | 331 |
| 990 | X-ray crystallography | 31 | 379 | 81 | 119 |
| 991 | Liposomes | 10 | 378 | 231 | 234 |
| 991 | Lipid bilayers | 10 | 378 | 200 | 221 |
| 993 | Musicology | 14 | 377 | 32 | 23 |
| 993 | economic forecasting | 10 | 377 | 94 | 125 |
| 993 | DNA | 16 | 377 | 109 | 136 |
| 996 | Socioeconomic Factors | 23 | 372 | 141 | 272 |
| 997 | Moral Education | 16 | 370 | 9 | 12 |
| 997 | biological invasions | 22 | 370 | 77 | 233 |
| 999 | Emotion | 5 | 368 | 141 | 116 |
| 999 | Semiconductor industry | 17 | 368 | 162 | 129 |