| 1 | Biology | 3,729 | 330.2K | 49 | 65 |
| 2 | Science | 2,975 | 313.0K | 74 | 69 |
| 3 | Physics | 2,623 | 282.9K | 146 | 97 |
| 4 | Biochemistry | 3,293 | 210.0K | 61 | 38 |
| 5 | Medicine | 2,914 | 196.3K | 72 | 68 |
| 6 | Chemistry | 2,577 | 193.3K | 122 | 86 |
| 7 | Natural history | 613 | 158.0K | 68 | 71 |
| 8 | Molecular Biology | 1,970 | 151.7K | 81 | 71 |
| 9 | Cytology | 856 | 140.5K | 83 | 43 |
| 10 | Cell Biology | 742 | 130.7K | 82 | 46 |
| 11 | Human genetics | 522 | 126.0K | 35 | 34 |
| 12 | Medical genetics | 1,189 | 122.4K | 11 | 6 |
| 13 | Neurology | 2,188 | 114.7K | 56 | 81 |
| 14 | Genetics | 1,152 | 111.0K | 29 | 30 |
| 15 | Solid State Physics | 999 | 107.8K | 99 | 22 |
| 16 | Condensed Matter | 861 | 104.4K | 108 | 24 |
| 17 | Virology | 509 | 95.7K | 68 | 44 |
| 18 | United States | 2,052 | 86.6K | 36 | 30 |
| 19 | Astrophysics | 1,001 | 81.1K | 161 | 151 |
| 20 | Ecology | 888 | 79.2K | 133 | 96 |
| 21 | Research | 1,837 | 67.9K | 90 | 104 |
| 22 | Developmental Biology | 723 | 67.4K | 20 | 19 |
| 23 | Pediatrics | 1,233 | 65.9K | 23 | 24 |
| 24 | Microbiology | 869 | 60.7K | 154 | 139 |
| 25 | Biophysics | 1,354 | 60.5K | 51 | 37 |
| 26 | Spectrum analysis | 1,073 | 59.2K | 71 | 103 |
| 27 | Psychology | 1,078 | 56.0K | 59 | 60 |
| 28 | Astronomy | 600 | 55.0K | 211 | 162 |
| 29 | Hematology | 1,152 | 51.2K | 25 | 46 |
| 30 | Obstetrics | 1,117 | 51.0K | 9 | 10 |
| 31 | Geophysics | 1,151 | 49.3K | 49 | 56 |
| 32 | Surgery | 323 | 46.6K | 44 | 54 |
| 33 | Embryology | 427 | 43.6K | 16 | 9 |
| 34 | Clinical Chemistry | 575 | 42.1K | 12 | 3 |
| 35 | Anatomy | 492 | 41.8K | 16 | 10 |
| 36 | Pharmaceutical Chemistry | 520 | 40.0K | 52 | 15 |
| 37 | Biotechnology | 297 | 40.0K | 329 | 113 |
| 38 | Physiology | 901 | 39.8K | 59 | 72 |
| 39 | Public Health | 683 | 38.7K | 129 | 91 |
| 40 | Nuclear Physics | 764 | 38.6K | 295 | 228 |
| 41 | Bioengineering | 286 | 37.6K | 170 | 75 |
| 42 | Neurophysiology | 529 | 35.4K | 71 | 82 |
| 43 | Growth | 282 | 35.2K | 32 | 24 |
| 44 | Biomedical Engineering | 700 | 34.6K | 61 | 34 |
| 45 | Psychiatry | 603 | 34.4K | 115 | 106 |
| 46 | Cell differentiation | 336 | 33.8K | 27 | 26 |
| 47 | Cardiovascular system | 336 | 33.4K | 54 | 50 |
| 48 | Pharmacology | 863 | 33.3K | 103 | 93 |
| 49 | Cancer | 596 | 32.7K | 68 | 77 |
| 50 | Geography | 156 | 31.5K | 135 | 5 |
| 51 | Biocompatible Materials | 487 | 31.0K | 106 | 95 |
| 52 | Immunology | 498 | 30.5K | 105 | 114 |
| 53 | Polymers | 626 | 28.3K | 151 | 102 |
| 54 | Hypertension | 339 | 27.7K | 49 | 54 |
| 55 | Biochemical Engineering | 95 | 27.6K | 432 | 89 |
| 56 | Environment | 454 | 27.6K | 142 | 201 |
| 57 | Materials Science | 647 | 27.5K | 117 | 140 |
| 58 | Quantum Gravity | 459 | 26.9K | 132 | 104 |
| 59 | Meteorology | 504 | 26.7K | 51 | 58 |
| 60 | Computer Graphics | 569 | 26.0K | 5 | 12 |
| 61 | Materials | 546 | 25.8K | 312 | 291 |
| 62 | Nanotechnology | 373 | 25.7K | 291 | 220 |
| 63 | Surface Chemistry | 606 | 25.2K | 41 | 41 |
| 64 | Physical Chemistry | 273 | 25.0K | 43 | 22 |
| 65 | Botany | 274 | 24.9K | 282 | 141 |
| 66 | Soil Science | 39 | 24.5K | 360 | 16 |
| 67 | Bacteriology | 299 | 23.8K | 42 | 43 |
| 68 | Endocrinology | 518 | 23.7K | 91 | 135 |
| 69 | management | 201 | 23.3K | 192 | 116 |
| 70 | Metabolic diseases | 405 | 23.1K | 55 | 88 |
| 71 | finance | 126 | 22.7K | 156 | 27 |
| 72 | Environmental Health | 547 | 21.9K | 114 | 172 |
| 73 | Medical Physics | 466 | 21.5K | 25 | 17 |
| 74 | Behavior | 450 | 21.4K | 73 | 91 |
| 75 | biological evolution | 223 | 21.3K | 79 | 70 |
| 76 | Geology | 532 | 21.1K | 71 | 96 |
| 77 | Psychophysiology | 484 | 20.5K | 88 | 113 |
| 78 | Electronics | 496 | 20.3K | 81 | 62 |
| 79 | Epidemiology | 475 | 20.0K | 75 | 89 |
| 80 | Electrochemistry | 970 | 19.9K | 37 | 65 |
| 81 | Nervous system | 226 | 19.7K | 99 | 71 |
| 82 | Mathematics | 907 | 19.6K | 140 | 74 |
| 83 | Colloids | 405 | 19.5K | 129 | 90 |
| 84 | gene mapping | 222 | 19.4K | 39 | 27 |
| 85 | Metabolism | 432 | 18.5K | 73 | 132 |
| 86 | polymerization | 462 | 18.5K | 157 | 125 |
| 87 | Ophthalmology | 349 | 17.9K | 40 | 33 |
| 87 | Toxicology | 520 | 17.9K | 72 | 89 |
| 89 | Health | 419 | 17.6K | 18 | 15 |
| 90 | Catalysis | 283 | 17.5K | 285 | 209 |
| 91 | Pollution | 296 | 17.5K | 303 | 303 |
| 92 | nucleic acids | 366 | 17.2K | 12 | 85 |
| 93 | Child Development | 242 | 17.1K | 67 | 58 |
| 94 | Urology | 509 | 17.1K | 31 | 36 |
| 95 | Cytogenetics | 198 | 16.5K | 38 | 46 |
| 96 | Brain | 391 | 16.2K | 77 | 114 |
| 97 | Plant cells | 84 | 15.5K | 133 | 82 |
| 98 | Neurons | 94 | 15.4K | 50 | 64 |
| 99 | Mental Disorders | 257 | 15.3K | 129 | 126 |
| 100 | Nutrition | 398 | 15.0K | 115 | 156 |
| 101 | Immunity | 166 | 15.0K | 113 | 153 |
| 102 | Oncology | 239 | 14.8K | 64 | 97 |
| 103 | Dermatology | 365 | 14.7K | 38 | 37 |
| 104 | Social Psychology | 329 | 14.7K | 64 | 102 |
| 105 | human behavior | 222 | 14.6K | 97 | 101 |
| 106 | Pharmacy | 341 | 14.5K | 32 | 19 |
| 107 | Planets | 213 | 14.0K | 110 | 74 |
| 108 | Critical Care Medicine | 166 | 14.0K | 83 | 78 |
| 109 | Critical Care | 165 | 14.0K | 86 | 78 |
| 110 | Orthopedics | 355 | 13.8K | 13 | 18 |
| 111 | Genomics | 261 | 13.7K | 89 | 70 |
| 112 | arthritis | 191 | 13.4K | 39 | 36 |
| 113 | Chromosome mapping | 178 | 13.3K | 37 | 18 |
| 114 | Analytical Chemistry | 366 | 13.2K | 168 | 185 |
| 115 | Child psychology | 164 | 13.2K | 100 | 79 |
| 116 | Drug delivery systems | 135 | 13.1K | 16 | 9 |
| 117 | Evolution | 153 | 13.0K | 124 | 98 |
| 118 | Child | 374 | 12.9K | 44 | 44 |
| 119 | Memory | 290 | 12.9K | 52 | 56 |
| 120 | Education | 500 | 12.8K | 76 | 97 |
| 121 | Sports Medicine | 531 | 12.7K | 17 | 57 |
| 122 | Computational Chemistry | 27 | 12.5K | 87 | 20 |
| 123 | Engineering | 295 | 12.4K | 122 | 50 |
| 124 | Ceramics | 210 | 12.3K | 35 | 17 |
| 125 | Glass | 207 | 12.2K | 27 | 16 |
| 126 | behavioral medicine | 207 | 12.2K | 22 | 34 |
| 127 | pottery | 206 | 12.2K | 26 | 16 |
| 128 | pain | 157 | 12.0K | 59 | 53 |
| 129 | genome | 97 | 11.9K | 105 | 91 |
| 130 | Medical Oncology | 247 | 11.8K | 60 | 62 |
| 131 | Pediatric Neurology | 97 | 11.7K | 57 | 53 |
| 132 | Animal Behavior | 165 | 11.6K | 160 | 110 |
| 133 | drug therapy | 327 | 11.5K | 48 | 52 |
| 134 | Chemical Engineering | 253 | 11.5K | 386 | 352 |
| 135 | Economics | 284 | 11.5K | 270 | 180 |
| 136 | Molecular evolution | 91 | 11.4K | 86 | 45 |
| 137 | Geochemistry | 225 | 11.4K | 122 | 122 |
| 138 | Plant physiology | 75 | 11.4K | 288 | 85 |
| 139 | Signal Processing | 127 | 11.3K | 269 | 129 |
| 140 | Organic Chemistry | 263 | 11.3K | 102 | 84 |
| 141 | Communication | 362 | 11.2K | 26 | 43 |
| 142 | Aging | 427 | 11.2K | 52 | 108 |
| 143 | plant communities | 62 | 11.1K | 111 | 16 |
| 144 | Neuropsychology | 280 | 10.9K | 55 | 70 |
| 145 | Technology | 217 | 10.9K | 202 | 101 |
| 146 | Neurobiology | 156 | 10.8K | 105 | 109 |
| 147 | city planning | 119 | 10.5K | 71 | 17 |
| 148 | visualization | 345 | 10.5K | 5 | 5 |
| 149 | Computational Biology | 164 | 10.5K | 126 | 127 |
| 150 | nanoscience | 125 | 10.2K | 281 | 190 |
| 151 | rehabilitation | 305 | 10.2K | 39 | 50 |
| 152 | Diagnostic microbiology | 182 | 10.1K | 17 | 40 |
| 153 | Business | 113 | 10.1K | 114 | 101 |
| 154 | Metallurgy | 329 | 10.1K | 62 | 101 |
| 155 | Telecommunication | 133 | 9.9K | 227 | 140 |
| 156 | Physical Therapy | 253 | 9.9K | 24 | 33 |
| 157 | cell physiology | 152 | 9.8K | 60 | 61 |
| 158 | Geriatrics | 503 | 9.7K | 56 | 127 |
| 159 | Mental illness | 142 | 9.6K | 122 | 118 |
| 160 | Climatology | 142 | 9.6K | 127 | 102 |
| 161 | Ethology | 111 | 9.5K | 158 | 103 |
| 162 | Bioinformatics | 105 | 9.4K | 159 | 118 |
| 163 | Research Design | 167 | 9.4K | 22 | 41 |
| 164 | Clinical Psychology | 161 | 9.3K | 57 | 63 |
| 165 | Anthropology | 306 | 9.2K | 35 | 32 |
| 166 | Rheumatology | 139 | 9.2K | 38 | 32 |
| 167 | personality | 173 | 9.1K | 62 | 90 |
| 168 | Genetic regulation | 95 | 9.1K | 48 | 58 |
| 169 | Diabetes | 192 | 9.1K | 109 | 151 |
| 170 | Perception | 269 | 9.1K | 67 | 71 |
| 171 | Histology | 80 | 9.0K | 197 | 49 |
| 172 | natural products | 81 | 8.9K | 108 | 15 |
| 173 | organization | 51 | 8.9K | 69 | 43 |
| 174 | Diabetes mellitus | 175 | 8.9K | 100 | 138 |
| 175 | Neurochemistry | 211 | 8.7K | 127 | 146 |
| 176 | Molecular structure | 129 | 8.7K | 108 | 74 |
| 177 | Developmental Genetics | 85 | 8.7K | 40 | 46 |
| 178 | Analytical Biochemistry | 138 | 8.5K | 23 | 25 |
| 179 | Therapeutics | 204 | 8.5K | 50 | 71 |
| 180 | Atmospheric Physics | 212 | 8.5K | 95 | 120 |
| 181 | Radiobiology | 201 | 8.4K | 50 | 54 |
| 182 | Host-parasite interactions | 86 | 8.4K | 79 | 75 |
| 183 | Nanostructured Materials | 175 | 8.3K | 248 | 227 |
| 184 | Gene expression regulation | 86 | 8.3K | 41 | 49 |
| 185 | Developmental Disabilities | 84 | 8.2K | 80 | 36 |
| 186 | Sociology | 251 | 8.2K | 127 | 167 |
| 187 | Pathology | 202 | 8.2K | 119 | 147 |
| 188 | diseases | 12 | 8.1K | 82 | 50 |
| 189 | Health Policy | 163 | 8.1K | 122 | 74 |
| 190 | Attention | 252 | 8.1K | 53 | 59 |
| 191 | Optics | 382 | 8.0K | 246 | 245 |
| 192 | Environmental Engineering | 181 | 8.0K | 206 | 267 |
| 193 | Biomechanics | 167 | 8.0K | 37 | 47 |
| 194 | Medical Microbiology | 134 | 8.0K | 157 | 158 |
| 195 | Composite Materials | 230 | 8.0K | 125 | 186 |
| 196 | Statistical physics | 257 | 8.0K | 321 | 295 |
| 197 | Emergency Medicine | 266 | 7.9K | 28 | 29 |
| 198 | Social behavior | 113 | 7.8K | 47 | 35 |
| 199 | viruses | 114 | 7.8K | 129 | 114 |
| 200 | Water | 136 | 7.8K | 174 | 199 |
| 201 | Spine | 127 | 7.8K | 23 | 22 |
| 202 | Homeostasis | 36 | 7.7K | 38 | 49 |
| 202 | Cell metabolism | 36 | 7.7K | 52 | 49 |
| 204 | biological factors | 87 | 7.7K | 87 | 16 |
| 205 | Regional Planning | 94 | 7.7K | 91 | 30 |
| 206 | commerce | 40 | 7.7K | 195 | 71 |
| 207 | Diet | 162 | 7.6K | 101 | 151 |
| 208 | Speech Disorders | 183 | 7.6K | 42 | 32 |
| 209 | Visual Perception | 233 | 7.5K | 52 | 57 |
| 210 | Hydrology | 152 | 7.5K | 141 | 120 |
| 211 | Earth Sciences | 139 | 7.5K | 269 | 207 |
| 212 | Lung Transplantation | 154 | 7.4K | 11 | 14 |
| 212 | Heart transplantation | 154 | 7.4K | 11 | 14 |
| 214 | miniaturization | 111 | 7.4K | 138 | 154 |
| 215 | Combustion | 146 | 7.1K | 73 | 48 |
| 216 | Infertility | 167 | 7.1K | 25 | 37 |
| 216 | fertility | 167 | 7.1K | 26 | 40 |
| 218 | viral genetics | 56 | 7.0K | 36 | 47 |
| 219 | Cognition | 130 | 6.8K | 150 | 128 |
| 220 | planning | 31 | 6.8K | 67 | 3 |
| 221 | marketing | 89 | 6.7K | 162 | 147 |
| 221 | Respiration | 194 | 6.7K | 47 | 77 |
| 223 | Electrophysiology | 232 | 6.7K | 9 | 7 |
| 224 | Developmental Psychology | 103 | 6.6K | 67 | 63 |
| 225 | Social Sciences | 317 | 6.4K | 75 | 141 |
| 226 | Electrochemical Analysis | 231 | 6.4K | 13 | 19 |
| 227 | Adolescent | 276 | 6.3K | 51 | 82 |
| 228 | environmental pollution | 140 | 6.3K | 416 | 422 |
| 229 | Reproduction | 132 | 6.3K | 180 | 128 |
| 230 | health behavior | 159 | 6.2K | 39 | 33 |
| 231 | Biometrics | 147 | 6.2K | 41 | 45 |
| 232 | Adolescent Medicine | 126 | 6.2K | 17 | 32 |
| 233 | Virulence | 78 | 6.2K | 90 | 92 |
| 234 | Molecular Microbiology | 62 | 6.1K | 85 | 61 |
| 235 | DNA polymerases | 43 | 6.0K | 32 | 41 |
| 236 | Paleoecology | 87 | 6.0K | 50 | 17 |
| 237 | Radio | 132 | 6.0K | 100 | 118 |
| 238 | Obesity | 140 | 6.0K | 126 | 145 |
| 239 | Urban Planning | 24 | 6.0K | 38 | 2 |
| 240 | Health Education | 268 | 5.9K | 42 | 73 |
| 241 | Meteorites | 57 | 5.9K | 176 | 118 |
| 242 | Disease | 8 | 5.9K | 125 | 70 |
| 243 | Clinical Biochemistry | 170 | 5.9K | 13 | 18 |
| 243 | Metals | 210 | 5.9K | 92 | 157 |
| 245 | Bioorganic chemistry | 119 | 5.9K | 239 | 168 |
| 246 | counseling | 210 | 5.8K | 31 | 43 |
| 247 | Language Disorders | 132 | 5.8K | 37 | 23 |
| 247 | psychotherapy | 86 | 5.8K | 126 | 106 |
| 249 | Paleoclimatology | 99 | 5.8K | 47 | 30 |
| 250 | Thrombosis | 126 | 5.7K | 54 | 61 |
| 251 | Medical Laboratory Science | 142 | 5.7K | 86 | 126 |
| 252 | Mechanics | 34 | 5.7K | 237 | 17 |
| 253 | Agriculture | 94 | 5.7K | 168 | 97 |
| 254 | Sound | 44 | 5.7K | 142 | 20 |
| 255 | Archaeology | 114 | 5.6K | 98 | 42 |
| 256 | Biodiversity conservation | 69 | 5.6K | 205 | 244 |
| 257 | Community Psychology | 28 | 5.6K | 99 | 19 |
| 258 | Transportation | 197 | 5.6K | 70 | 95 |
| 259 | energy conservation | 78 | 5.4K | 188 | 168 |
| 260 | Muscles | 106 | 5.4K | 18 | 18 |
| 261 | Molecules | 71 | 5.4K | 211 | 58 |
| 262 | Vision | 113 | 5.4K | 29 | 44 |
| 263 | Paleogeography | 77 | 5.3K | 45 | 17 |
| 264 | Molecular Pharmacology | 109 | 5.3K | 17 | 22 |
| 265 | Learning | 103 | 5.3K | 95 | 95 |
| 266 | Speech | 136 | 5.3K | 41 | 39 |
| 267 | Microelectronics | 80 | 5.3K | 208 | 186 |
| 268 | medical education | 252 | 5.3K | 67 | 100 |
| 269 | Genetic engineering | 120 | 5.2K | 101 | 119 |
| 270 | Economic planning | 21 | 5.2K | 62 | 3 |
| 271 | Mathematical Physics | 152 | 5.2K | 288 | 231 |
| 272 | water supply | 83 | 5.1K | 74 | 69 |
| 273 | Sports | 209 | 5.1K | 62 | 114 |
| 274 | Acoustics | 25 | 5.1K | 54 | 6 |
| 275 | Microbial Ecology | 61 | 5.1K | 370 | 300 |
| 276 | Decision making | 99 | 5.0K | 54 | 64 |
| 277 | Human evolution | 62 | 5.0K | 39 | 25 |
| 278 | Medical innovations | 84 | 5.0K | 38 | 93 |
| 279 | Speech acoustics | 13 | 5.0K | 47 | 6 |
| 280 | Radiography | 156 | 5.0K | 25 | 67 |
| 281 | eye | 21 | 5.0K | 20 | 9 |
| 282 | Climate change | 50 | 4.9K | 126 | 213 |
| 283 | Gerontology | 326 | 4.9K | 49 | 79 |
| 284 | Liver diseases | 87 | 4.9K | 156 | 213 |
| 285 | Eutrophication | 49 | 4.8K | 124 | 218 |
| 286 | Membranes | 131 | 4.8K | 119 | 172 |
| 287 | Psychopharmacology | 80 | 4.8K | 162 | 163 |
| 288 | Mass Spectrometry | 99 | 4.7K | 48 | 26 |
| 289 | Music | 96 | 4.7K | 25 | 3 |
| 289 | Stem cells | 82 | 4.7K | 124 | 95 |
| 291 | Health promotion | 171 | 4.6K | 41 | 71 |
| 291 | Autism | 68 | 4.6K | 53 | 30 |
| 293 | Retina | 20 | 4.6K | 14 | 8 |
| 294 | Microwaves | 102 | 4.6K | 134 | 60 |
| 295 | Lipids | 66 | 4.6K | 107 | 81 |
| 296 | Applied Sciences | 5 | 4.5K | 8 | 2 |
| 296 | Applied Mechanics | 5 | 4.5K | 8 | 2 |
| 298 | Heart Failure | 108 | 4.5K | 23 | 29 |
| 299 | Bones | 86 | 4.5K | 26 | 33 |
| 300 | sanitation | 86 | 4.5K | 171 | 270 |
| 300 | voice | 78 | 4.5K | 9 | 3 |
| 302 | Paleontology | 89 | 4.5K | 119 | 41 |
| 303 | Allergy | 62 | 4.5K | 143 | 178 |
| 304 | Environmental monitoring | 98 | 4.4K | 402 | 414 |
| 305 | Light | 49 | 4.4K | 94 | 118 |
| 306 | Image Processing | 93 | 4.4K | 220 | 206 |
| 307 | drug development | 79 | 4.4K | 41 | 96 |
| 308 | Magnetic Resonance Spectroscopy | 152 | 4.3K | 37 | 41 |
| 309 | Substance Abuse | 150 | 4.3K | 68 | 74 |
| 310 | Neuromuscular diseases | 97 | 4.2K | 19 | 21 |
| 311 | environmental exposure | 177 | 4.2K | 16 | 62 |
| 312 | Wireless Communication Systems | 63 | 4.2K | 382 | 201 |
| 313 | Oncogenes | 58 | 4.2K | 151 | 156 |
| 314 | Molecular Genetics | 95 | 4.2K | 163 | 217 |
| 315 | Robotics | 85 | 4.2K | 137 | 86 |
| 316 | Educational Psychology | 137 | 4.2K | 79 | 116 |
| 317 | Plant Ecology | 33 | 4.2K | 440 | 190 |
| 318 | Kidney diseases | 107 | 4.1K | 44 | 41 |
| 319 | Medical Technology | 131 | 4.1K | 17 | 32 |
| 320 | enzymes | 88 | 4.1K | 81 | 60 |
| 321 | coal | 117 | 4.1K | 76 | 98 |
| 322 | Health Services Administration | 58 | 4.1K | 76 | 37 |
| 323 | human development | 63 | 4.1K | 66 | 49 |
| 324 | epilepsy | 67 | 4.1K | 55 | 22 |
| 325 | Atmospheric Chemistry | 68 | 4.0K | 153 | 160 |
| 326 | Sites | 54 | 4.0K | 37 | 21 |
| 327 | Entrepreneurship | 28 | 4.0K | 128 | 102 |
| 328 | Medical Anthropology | 79 | 4.0K | 118 | 128 |
| 329 | Transplantation | 123 | 4.0K | 81 | 122 |
| 330 | Environmental Policy | 68 | 4.0K | 470 | 401 |
| 331 | Photochemistry | 60 | 4.0K | 135 | 32 |
| 332 | Ergonomics | 142 | 4.0K | 49 | 35 |
| 333 | mass transfer | 112 | 4.0K | 101 | 130 |
| 334 | health services | 105 | 4.0K | 61 | 44 |
| 335 | Leukemia | 97 | 4.0K | 67 | 124 |
| 336 | Analytical Toxicology | 138 | 3.9K | 1 | 1 |
| 337 | Chemotherapy | 121 | 3.9K | 49 | 47 |
| 338 | Zoology | 122 | 3.9K | 219 | 175 |
| 339 | preventive medicine | 136 | 3.9K | 46 | 101 |
| 340 | Artificial Organs | 178 | 3.9K | 4 | 6 |
| 341 | Nephrology | 88 | 3.8K | 44 | 38 |
| 342 | Social work | 194 | 3.8K | 57 | 58 |
| 343 | Hearing | 88 | 3.8K | 53 | 31 |
| 344 | Biodiversity | 66 | 3.8K | 267 | 235 |
| 345 | mycoses | 29 | 3.8K | 104 | 76 |
| 346 | Bacterial infections | 27 | 3.7K | 122 | 85 |
| 347 | older people | 331 | 3.7K | 35 | 60 |
| 348 | Genetic therapy | 78 | 3.6K | 76 | 79 |
| 349 | Pharmacognosy | 64 | 3.6K | 201 | 131 |
| 350 | United Kingdom | 53 | 3.6K | 238 | 157 |
| 351 | Family | 131 | 3.6K | 34 | 47 |
| 352 | Solid State Chemistry | 159 | 3.6K | 158 | 150 |
| 353 | Immunotherapy | 60 | 3.6K | 235 | 236 |
| 354 | Travel | 153 | 3.5K | 11 | 11 |
| 355 | Andrology | 79 | 3.5K | 12 | 7 |
| 356 | Mineralogy | 176 | 3.5K | 51 | 158 |
| 356 | Digestive system diseases | 115 | 3.5K | 26 | 23 |
| 358 | Signal Transduction | 36 | 3.5K | 256 | 145 |
| 359 | Statistics | 141 | 3.5K | 241 | 262 |
| 360 | Climate | 30 | 3.5K | 43 | 13 |
| 361 | vascular diseases | 52 | 3.4K | 92 | 90 |
| 361 | Immune system | 29 | 3.4K | 206 | 209 |
| 363 | Radiology | 183 | 3.4K | 31 | 42 |
| 364 | air | 27 | 3.4K | 17 | 9 |
| 365 | Geodynamics | 128 | 3.4K | 22 | 78 |
| 366 | Communication in medicine | 89 | 3.4K | 26 | 20 |
| 367 | Cognitive neuroscience | 48 | 3.3K | 166 | 182 |
| 368 | proteins | 78 | 3.3K | 213 | 185 |
| 369 | Environmental Psychology | 34 | 3.3K | 10 | 20 |
| 370 | Economic History | 154 | 3.3K | 211 | 238 |
| 371 | Automation | 44 | 3.3K | 475 | 350 |
| 372 | Hydrogeology | 122 | 3.3K | 4 | 8 |
| 373 | innovation | 16 | 3.3K | 134 | 64 |
| 374 | Cosmology | 72 | 3.3K | 14 | 25 |
| 375 | gene therapy | 58 | 3.3K | 99 | 94 |
| 376 | nuclear magnetic resonance | 134 | 3.3K | 50 | 60 |
| 377 | Hemodynamics | 79 | 3.2K | 55 | 101 |
| 378 | Renewable Energy Sources | 61 | 3.2K | 350 | 489 |
| 379 | Teaching | 119 | 3.1K | 87 | 120 |
| 380 | Special Education | 133 | 3.1K | 34 | 38 |
| 380 | Alzheimer's disease | 112 | 3.1K | 132 | 123 |
| 382 | drugs | 77 | 3.1K | 202 | 154 |
| 383 | nuclear astrophysics | 67 | 3.1K | 9 | 16 |
| 384 | Nuclear Engineering | 148 | 3.1K | 95 | 64 |
| 385 | Artificial Intelligence | 78 | 3.1K | 578 | 504 |
| 386 | environmental protection | 65 | 3.1K | 498 | 434 |
| 387 | Environmental Chemistry | 71 | 3.0K | 174 | 324 |
| 388 | Thorax | 116 | 3.0K | 22 | 38 |
| 389 | Dementia | 106 | 3.0K | 131 | 107 |
| 390 | Orthopedic Surgery | 93 | 3.0K | 27 | 22 |
| 391 | alcoholism | 105 | 3.0K | 133 | 162 |
| 392 | Photonics | 58 | 3.0K | 349 | 327 |
| 393 | Mobile Computing | 24 | 2.9K | 255 | 62 |
| 394 | Entomology | 98 | 2.9K | 214 | 160 |
| 395 | Health Services Research | 99 | 2.9K | 127 | 149 |
| 396 | Water pollution | 71 | 2.9K | 405 | 439 |
| 397 | Control Theory | 51 | 2.9K | 325 | 149 |
| 398 | Radiation | 122 | 2.9K | 82 | 102 |
| 399 | actuators | 76 | 2.9K | 223 | 233 |
| 399 | transducers | 76 | 2.9K | 223 | 233 |
| 401 | Pharmaceutical Technology | 32 | 2.9K | 307 | 98 |
| 402 | behavior therapy | 110 | 2.9K | 46 | 87 |
| 403 | Optical materials | 68 | 2.9K | 437 | 462 |
| 404 | Birds | 87 | 2.8K | 95 | 58 |
| 405 | Breeding | 51 | 2.8K | 164 | 86 |
| 406 | Leisure | 82 | 2.8K | 9 | 12 |
| 407 | Sociobiology | 52 | 2.8K | 8 | 9 |
| 408 | Petroleum Engineering | 100 | 2.8K | 53 | 56 |
| 409 | Plants | 37 | 2.8K | 460 | 352 |
| 410 | behavior modification | 57 | 2.8K | 38 | 45 |
| 411 | Diagnostic Imaging | 107 | 2.7K | 137 | 204 |
| 412 | Molecular recognition | 26 | 2.7K | 4 | 1 |
| 413 | protein | 51 | 2.7K | 145 | 127 |
| 414 | Otolaryngology | 98 | 2.7K | 32 | 32 |
| 415 | Post-traumatic stress disorder | 61 | 2.7K | 53 | 59 |
| 416 | Biogeography | 35 | 2.7K | 174 | 143 |
| 417 | Population | 65 | 2.6K | 50 | 52 |
| 418 | Fracture mechanics | 110 | 2.6K | 90 | 118 |
| 419 | Nursing | 134 | 2.6K | 79 | 89 |
| 420 | Primary health care | 154 | 2.6K | 60 | 124 |
| 421 | Human-Computer Interaction | 57 | 2.6K | 92 | 76 |
| 422 | probabilities | 116 | 2.6K | 76 | 48 |
| 423 | Animal ecology | 44 | 2.6K | 215 | 143 |
| 424 | Political Science | 100 | 2.6K | 190 | 179 |
| 425 | Sales management | 3 | 2.6K | 245 | 30 |
| 425 | selling | 3 | 2.6K | 245 | 30 |
| 427 | Hippocampus | 30 | 2.6K | 25 | 24 |
| 428 | infection | 49 | 2.6K | 254 | 199 |
| 429 | drug addiction | 80 | 2.6K | 117 | 142 |
| 430 | Teratology | 48 | 2.5K | 14 | 14 |
| 431 | Organizational Behavior | 39 | 2.5K | 61 | 79 |
| 432 | Informatics | 17 | 2.5K | 225 | 43 |
| 433 | Learning disabilities | 77 | 2.5K | 68 | 56 |
| 434 | Nonlinear Dynamics | 105 | 2.5K | 274 | 330 |
| 435 | Radio waves | 59 | 2.5K | 132 | 123 |
| 436 | Hemostasis | 82 | 2.5K | 20 | 20 |
| 437 | Experimental Psychology | 39 | 2.4K | 75 | 74 |
| 438 | baking | 46 | 2.4K | 14 | 10 |
| 439 | Vocational guidance | 110 | 2.4K | 53 | 132 |
| 440 | Production Management | 48 | 2.4K | 125 | 205 |
| 441 | Community Psychiatry | 56 | 2.4K | 101 | 95 |
| 442 | families | 97 | 2.4K | 33 | 41 |
| 443 | adolescence | 67 | 2.4K | 87 | 107 |
| 444 | free radicals | 45 | 2.4K | 186 | 227 |
| 445 | Chronic diseases | 28 | 2.4K | 150 | 143 |
| 446 | Crystallography | 40 | 2.3K | 352 | 88 |
| 447 | Computer Vision | 68 | 2.3K | 89 | 181 |
| 448 | Dynamics | 53 | 2.3K | 172 | 62 |
| 449 | Biogeochemistry | 44 | 2.3K | 202 | 226 |
| 450 | carcinogens | 44 | 2.3K | 94 | 81 |
| 451 | Venture Capital | 7 | 2.3K | 144 | 76 |
| 452 | Groundwater | 90 | 2.3K | 18 | 27 |
| 453 | biopolymers | 59 | 2.3K | 155 | 136 |
| 454 | Ornithology | 52 | 2.3K | 124 | 47 |
| 455 | Computer Architecture | 43 | 2.3K | 33 | 13 |
| 456 | morbidity | 4 | 2.2K | 4 | 1 |
| 456 | mortality | 5 | 2.2K | 22 | 1 |
| 458 | Palliative Care | 159 | 2.2K | 9 | 51 |
| 459 | ecosystem | 30 | 2.2K | 305 | 203 |
| 460 | Pharmacogenetics | 51 | 2.2K | 80 | 76 |
| 461 | Carcinogenesis | 62 | 2.2K | 58 | 91 |
| 462 | Immunopathology | 60 | 2.2K | 154 | 159 |
| 463 | abnormalities | 37 | 2.2K | 6 | 5 |
| 464 | Roads | 125 | 2.2K | 49 | 55 |
| 465 | Fishery management | 82 | 2.2K | 47 | 48 |
| 466 | Women's health | 109 | 2.1K | 42 | 80 |
| 467 | Infections | 27 | 2.1K | 246 | 168 |
| 468 | Clinical Trials | 82 | 2.1K | 27 | 33 |
| 468 | Cognitive Science | 50 | 2.1K | 197 | 249 |
| 468 | Organometallic compounds | 54 | 2.1K | 162 | 124 |
| 471 | Patient education | 55 | 2.1K | 46 | 54 |
| 472 | Microorganisms | 21 | 2.1K | 240 | 175 |
| 473 | Recombinant DNA | 47 | 2.1K | 168 | 136 |
| 474 | calcification | 43 | 2.1K | 35 | 35 |
| 475 | Wildlife conservation | 24 | 2.1K | 311 | 176 |
| 476 | Biomolecules | 43 | 2.1K | 11 | 29 |
| 477 | heredity | 70 | 2.1K | 20 | 27 |
| 478 | Molecular cloning | 43 | 2.0K | 164 | 116 |
| 478 | Genetic recombination | 43 | 2.0K | 154 | 113 |
| 480 | Toxins | 57 | 2.0K | 31 | 31 |
| 481 | venom | 56 | 2.0K | 29 | 31 |
| 482 | Biosensors | 37 | 2.0K | 197 | 217 |
| 483 | Information Theory | 53 | 2.0K | 200 | 183 |
| 484 | Oceanography | 31 | 2.0K | 496 | 347 |
| 484 | School Psychology | 72 | 2.0K | 30 | 45 |
| 486 | locomotion | 65 | 2.0K | 15 | 46 |
| 486 | posture | 65 | 2.0K | 15 | 46 |
| 486 | gait | 65 | 2.0K | 15 | 46 |
| 486 | walking | 65 | 2.0K | 15 | 46 |
| 490 | industrial hygiene | 71 | 2.0K | 41 | 15 |
| 491 | Sleep Disorders | 108 | 2.0K | 104 | 208 |
| 491 | Sleep | 113 | 2.0K | 95 | 209 |
| 493 | Engineering Mathematics | 51 | 2.0K | 253 | 143 |
| 494 | Organizational change | 22 | 2.0K | 98 | 22 |
| 495 | Electrical Engineering | 233 | 2.0K | 161 | 317 |
| 496 | Petroleum Geology | 31 | 2.0K | 82 | 39 |
| 497 | Genetic epidemiology | 63 | 2.0K | 18 | 22 |
| 498 | Energy Conversion | 35 | 2.0K | 256 | 359 |
| 499 | Demography | 51 | 2.0K | 55 | 65 |
| 500 | biocatalysis | 2 | 2.0K | 225 | 64 |
| 500 | Homogeneous catalysis | 2 | 2.0K | 225 | 64 |
| 500 | Heterogeneous catalysis | 2 | 2.0K | 225 | 64 |
| 503 | Geochemical Modeling | 24 | 2.0K | 49 | 40 |
| 503 | geological modeling | 24 | 2.0K | 63 | 41 |
| 505 | Cardiovascular diseases | 105 | 1.9K | 111 | 235 |
| 506 | Marine Geology | 29 | 1.9K | 85 | 39 |
| 507 | Public Policy | 72 | 1.9K | 176 | 219 |
| 508 | Electrocardiography | 102 | 1.9K | 3 | 3 |
| 509 | Suicide | 69 | 1.9K | 11 | 30 |
| 510 | child abuse | 73 | 1.9K | 61 | 108 |
| 511 | Environmental Law | 40 | 1.9K | 149 | 226 |
| 512 | Social problems | 41 | 1.9K | 56 | 76 |
| 513 | Detectors | 55 | 1.9K | 149 | 107 |
| 514 | Numerical Analysis | 78 | 1.9K | 243 | 218 |
| 515 | Classification | 14 | 1.9K | 52 | 29 |
| 516 | Autoimmunity | 33 | 1.9K | 111 | 104 |
| 517 | Crystallization | 7 | 1.9K | 287 | 11 |
| 518 | Geomagnetism | 60 | 1.9K | 70 | 67 |
| 519 | Emotions | 31 | 1.8K | 107 | 104 |
| 520 | Dietetics | 60 | 1.8K | 57 | 53 |
| 521 | Neuropsychiatry | 46 | 1.8K | 86 | 81 |
| 522 | Developing countries | 51 | 1.8K | 318 | 305 |
| 523 | Parenteral nutrition | 58 | 1.8K | 81 | 176 |
| 524 | Operations Research | 39 | 1.8K | 572 | 409 |
| 525 | Human Geography | 47 | 1.8K | 173 | 142 |
| 526 | Clinical Immunology | 59 | 1.8K | 123 | 137 |
| 527 | Computer-Aided Design | 68 | 1.8K | 77 | 121 |
| 528 | Biopharmaceutics | 23 | 1.8K | 241 | 110 |
| 529 | mutagens | 28 | 1.8K | 134 | 110 |
| 530 | Manufacturing Processes | 44 | 1.8K | 479 | 357 |
| 530 | Human biology | 41 | 1.8K | 56 | 24 |
| 532 | Conservation Biology | 26 | 1.8K | 254 | 182 |
| 533 | Energy Policy | 54 | 1.7K | 422 | 641 |
| 533 | Quality of life | 57 | 1.7K | 119 | 190 |
| 533 | Insects | 41 | 1.7K | 211 | 143 |
| 536 | Virtual reality | 38 | 1.7K | 13 | 21 |
| 537 | Geothermal Energy | 53 | 1.7K | 7 | 8 |
| 538 | Exercise | 67 | 1.7K | 125 | 149 |
| 539 | violence | 65 | 1.7K | 81 | 131 |
| 540 | Chromatography | 63 | 1.7K | 125 | 106 |
| 541 | Combinatorial chemistry | 29 | 1.7K | 125 | 116 |
| 542 | Comparative Physiology | 51 | 1.7K | 81 | 103 |
| 543 | cloning | 22 | 1.7K | 116 | 112 |
| 544 | eugenics | 60 | 1.7K | 25 | 29 |
| 545 | Bioenergetics | 31 | 1.7K | 139 | 125 |
| 545 | Contraception | 84 | 1.7K | 26 | 46 |
| 547 | Industrial Microbiology | 17 | 1.7K | 688 | 374 |
| 548 | Linguistics | 41 | 1.7K | 276 | 172 |
| 549 | Carbon | 34 | 1.7K | 224 | 294 |
| 550 | Surface properties | 54 | 1.6K | 52 | 102 |
| 551 | Child welfare | 73 | 1.6K | 82 | 89 |
| 551 | Cell cycle | 24 | 1.6K | 30 | 16 |
| 551 | cell proliferation | 24 | 1.6K | 36 | 16 |
| 554 | Ultrasonics | 36 | 1.6K | 185 | 146 |
| 555 | Medical Ethics | 125 | 1.6K | 44 | 62 |
| 556 | Population Genetics | 36 | 1.6K | 251 | 280 |
| 557 | Public Administration | 67 | 1.6K | 152 | 179 |
| 558 | System analysis | 60 | 1.6K | 336 | 333 |
| 559 | Economic Development | 34 | 1.6K | 313 | 295 |
| 560 | Environmental Toxicology | 34 | 1.6K | 520 | 484 |
| 561 | Nanoparticles | 33 | 1.6K | 417 | 312 |
| 562 | atmospheric models | 43 | 1.6K | 108 | 149 |
| 563 | Cerebral cortex | 26 | 1.6K | 243 | 217 |
| 564 | Brain damage | 51 | 1.6K | 15 | 22 |
| 565 | Heterocyclic compounds | 78 | 1.6K | 40 | 16 |
| 566 | Urban Policy | 34 | 1.6K | 82 | 62 |
| 566 | Phonetics | 22 | 1.6K | 69 | 19 |
| 568 | recreation | 97 | 1.6K | 27 | 39 |
| 569 | Architectural Design | 12 | 1.6K | 138 | 12 |
| 570 | Chromatographic analysis | 54 | 1.6K | 234 | 157 |
| 571 | Algebra | 132 | 1.5K | 58 | 64 |
| 572 | Marine Biology | 55 | 1.5K | 541 | 570 |
| 572 | micromechanics | 30 | 1.5K | 84 | 52 |
| 574 | blood transfusion | 82 | 1.5K | 48 | 64 |
| 575 | Psychosomatic Medicine | 37 | 1.5K | 114 | 128 |
| 576 | Urban Education | 14 | 1.5K | 16 | 3 |
| 577 | brain mapping | 17 | 1.5K | 202 | 137 |
| 578 | Counseling Psychology | 40 | 1.5K | 16 | 31 |
| 579 | Earthquake Engineering | 50 | 1.5K | 271 | 286 |
| 580 | Neurosurgery | 40 | 1.5K | 132 | 159 |
| 581 | Cardiac electrophysiology | 31 | 1.5K | 33 | 36 |
| 581 | arrhythmia | 31 | 1.5K | 33 | 36 |
| 583 | Organizational Sociology | 6 | 1.5K | 212 | 17 |
| 583 | Biogeochemical cycles | 14 | 1.5K | 145 | 125 |
| 585 | Androgens | 16 | 1.5K | 37 | 14 |
| 586 | Anxiety Disorders | 24 | 1.5K | 117 | 126 |
| 586 | Anxiety | 24 | 1.5K | 119 | 123 |
| 588 | Philosophy | 113 | 1.5K | 176 | 146 |
| 589 | Adolescent Psychology | 37 | 1.5K | 126 | 138 |
| 590 | Mental Health Services | 70 | 1.5K | 110 | 151 |
| 591 | occupational health and safety | 16 | 1.4K | 38 | 9 |
| 592 | Hormones | 42 | 1.4K | 217 | 251 |
| 592 | Solar System | 56 | 1.4K | 125 | 177 |
| 594 | Oxidation-reduction | 27 | 1.4K | 131 | 205 |
| 595 | Criminology | 56 | 1.4K | 133 | 146 |
| 596 | Nanostructures | 36 | 1.4K | 365 | 438 |
| 596 | weather forecasting | 46 | 1.4K | 14 | 20 |
| 598 | Information Science | 50 | 1.4K | 379 | 485 |
| 599 | Mental Health | 64 | 1.4K | 182 | 207 |
| 600 | Phylogeny | 29 | 1.4K | 146 | 146 |
| 601 | Personality Assessment | 28 | 1.4K | 106 | 103 |
| 602 | Vaccines | 60 | 1.4K | 206 | 285 |
| 603 | health services accessibility | 47 | 1.4K | 101 | 101 |
| 604 | Australia | 50 | 1.4K | 216 | 160 |
| 605 | Green Chemistry | 23 | 1.4K | 586 | 522 |
| 606 | Environmental Management | 29 | 1.4K | 850 | 842 |
| 607 | mammals | 66 | 1.4K | 57 | 91 |
| 608 | complementary therapies | 43 | 1.3K | 160 | 142 |
| 609 | Bioethics | 92 | 1.3K | 49 | 59 |
| 610 | Seismology | 61 | 1.3K | 36 | 64 |
| 611 | mathematical analysis | 62 | 1.3K | 510 | 331 |
| 612 | Bioelectronics | 21 | 1.3K | 289 | 289 |
| 613 | Parasitic Diseases | 46 | 1.3K | 289 | 345 |
| 614 | Quantitative Research | 29 | 1.3K | 27 | 26 |
| 615 | Environmental Microbiology | 12 | 1.3K | 588 | 364 |
| 616 | Ultrasound | 26 | 1.3K | 156 | 87 |
| 617 | Surface-Active Agents | 31 | 1.3K | 132 | 132 |
| 617 | consumer behavior | 58 | 1.3K | 15 | 86 |
| 619 | sports injuries | 78 | 1.3K | 7 | 14 |
| 620 | Systems Biology | 56 | 1.3K | 162 | 236 |
| 621 | Brachytherapy | 28 | 1.3K | 24 | 7 |
| 622 | Econometrics | 45 | 1.3K | 240 | 267 |
| 623 | Chromosomes | 62 | 1.3K | 58 | 140 |
| 624 | Technological Innovations | 24 | 1.3K | 166 | 86 |
| 625 | drug evaluation | 46 | 1.3K | 105 | 111 |
| 626 | Fluid Mechanics | 65 | 1.3K | 184 | 265 |
| 627 | Social interaction | 30 | 1.3K | 22 | 23 |
| 628 | Information Systems | 78 | 1.3K | 44 | 152 |
| 629 | Hospitals | 103 | 1.3K | 22 | 42 |
| 629 | cell membrane | 31 | 1.3K | 114 | 131 |
| 631 | Occupational Health | 65 | 1.3K | 73 | 115 |
| 632 | motivation | 26 | 1.3K | 36 | 44 |
| 633 | Europe | 60 | 1.3K | 551 | 567 |
| 634 | Clinical Pharmacology | 45 | 1.3K | 180 | 191 |
| 635 | Smoking | 56 | 1.3K | 90 | 138 |
| 636 | Genetic Counseling | 70 | 1.3K | 6 | 12 |
| 637 | RNA | 29 | 1.3K | 65 | 81 |
| 638 | Health insurance | 54 | 1.2K | 47 | 91 |
| 639 | sexual behavior | 28 | 1.2K | 110 | 98 |
| 640 | Socialization | 32 | 1.2K | 59 | 89 |
| 641 | Depression | 17 | 1.2K | 75 | 84 |
| 642 | Molecular ecology | 24 | 1.2K | 309 | 359 |
| 643 | Chemical Ecology | 33 | 1.2K | 66 | 86 |
| 644 | Astrocytes | 18 | 1.2K | 103 | 112 |
| 645 | Occupational Therapy | 109 | 1.2K | 54 | 70 |
| 646 | Functional Analysis | 39 | 1.2K | 240 | 151 |
| 646 | Small Business | 12 | 1.2K | 280 | 264 |
| 648 | Energy metabolism | 26 | 1.2K | 137 | 150 |
| 649 | Steroids | 37 | 1.2K | 143 | 143 |
| 650 | Genes | 37 | 1.2K | 144 | 131 |
| 651 | Reproductive health | 37 | 1.2K | 92 | 88 |
| 651 | scientific societies | 38 | 1.2K | 78 | 89 |
| 651 | Culture | 61 | 1.2K | 104 | 94 |
| 654 | Marriage | 44 | 1.2K | 44 | 53 |
| 655 | cardiac catheterization | 55 | 1.2K | 70 | 67 |
| 656 | Bone diseases | 8 | 1.2K | 210 | 121 |
| 657 | Psycholinguistics | 28 | 1.2K | 243 | 243 |
| 658 | nuclear magnetic resonance spectroscopy | 37 | 1.2K | 84 | 74 |
| 659 | government | 150 | 1.2K | 23 | 101 |
| 660 | Sarcopenia | 9 | 1.2K | 134 | 50 |
| 661 | Housing | 20 | 1.2K | 86 | 48 |
| 662 | Politics | 150 | 1.2K | 8 | 78 |
| 663 | Information Technology | 19 | 1.2K | 823 | 522 |
| 663 | natural gas | 37 | 1.2K | 44 | 47 |
| 665 | pheromones | 32 | 1.1K | 61 | 83 |
| 666 | Measurement | 15 | 1.1K | 490 | 145 |
| 667 | Qualitative Research | 16 | 1.1K | 147 | 67 |
| 668 | Audiology | 44 | 1.1K | 124 | 144 |
| 668 | histological techniques | 28 | 1.1K | 105 | 146 |
| 670 | Sustainable Development | 29 | 1.1K | 360 | 448 |
| 670 | Applied Linguistics | 18 | 1.1K | 141 | 40 |
| 672 | DNA | 21 | 1.1K | 76 | 27 |
| 673 | Physical organic chemistry | 34 | 1.1K | 252 | 191 |
| 673 | Elderly | 244 | 1.1K | 34 | 86 |
| 673 | Approximation Theory | 28 | 1.1K | 60 | 16 |
| 676 | Tourism | 19 | 1.1K | 520 | 448 |
| 677 | Synthetic biology | 43 | 1.1K | 22 | 33 |
| 678 | Immunogenetics | 32 | 1.1K | 84 | 80 |
| 679 | Cosmochemistry | 38 | 1.1K | 112 | 174 |
| 680 | Sedimentology | 43 | 1.1K | 36 | 103 |
| 681 | China | 52 | 1.1K | 485 | 479 |
| 682 | Cognitive Therapy | 41 | 1.1K | 50 | 77 |
| 683 | Schizophrenia | 34 | 1.1K | 217 | 272 |
| 684 | Multivariate Analysis | 21 | 1.1K | 102 | 62 |
| 685 | Solar Energy | 43 | 1.1K | 213 | 401 |
| 685 | Ecosystem management | 14 | 1.1K | 227 | 118 |
| 687 | community development | 22 | 1.1K | 94 | 45 |
| 688 | world | 16 | 1.1K | 210 | 187 |
| 689 | Genetic disorders | 29 | 1.1K | 79 | 72 |
| 690 | Family Therapy | 53 | 1.1K | 80 | 96 |
| 691 | Mechanical Engineering | 41 | 1.1K | 580 | 400 |
| 691 | Criminal psychology | 38 | 1.1K | 141 | 159 |
| 693 | Autoimmune diseases | 28 | 1.1K | 90 | 98 |
| 694 | Greenhouse gases | 28 | 1.1K | 37 | 55 |
| 695 | Emotion | 17 | 1.0K | 23 | 27 |
| 695 | atmosphere | 30 | 1.0K | 103 | 96 |
| 697 | computer networks | 27 | 1.0K | 753 | 602 |
| 698 | Petrology | 25 | 1.0K | 340 | 345 |
| 699 | Mobile genetic elements | 12 | 1.0K | 5 | 2 |
| 700 | Reading | 36 | 1.0K | 83 | 104 |
| 701 | Nuclear Medicine | 47 | 1.0K | 151 | 200 |
| 702 | Structural dynamics | 30 | 1.0K | 219 | 292 |
| 703 | Respiratory system | 22 | 1.0K | 108 | 89 |
| 703 | Microscopy | 30 | 1.0K | 247 | 181 |
| 705 | Tribology | 31 | 1.0K | 225 | 187 |
| 706 | rare diseases | 25 | 1.0K | 109 | 95 |
| 707 | Sustainable Engineering | 17 | 1.0K | 600 | 471 |
| 707 | economic policy | 89 | 1.0K | 201 | 382 |
| 709 | prostaglandins | 36 | 1.0K | 32 | 48 |
| 710 | Economic Assistance | 15 | 1.0K | 209 | 175 |
| 711 | Youth | 31 | 1.0K | 108 | 162 |
| 712 | Development | 14 | 1.0K | 267 | 195 |
| 713 | industrial relations | 38 | 1.0K | 136 | 119 |
| 714 | Fluid Dynamics | 34 | 1.0K | 227 | 216 |
| 715 | Quantum theory | 29 | 1.0K | 230 | 170 |
| 716 | analysis | 15 | 995 | 122 | 78 |
| 717 | Electrophoresis | 30 | 994 | 349 | 297 |
| 718 | Journalism | 33 | 992 | 58 | 43 |
| 718 | child behavior | 20 | 992 | 82 | 80 |
| 720 | Industrial Safety | 49 | 989 | 108 | 163 |
| 721 | Pediatric Nursing | 45 | 988 | 31 | 35 |
| 721 | clay | 23 | 988 | 141 | 139 |
| 721 | clay minerals | 23 | 988 | 34 | 35 |
| 724 | Drug design | 77 | 987 | 45 | 303 |
| 725 | Biomass Energy | 27 | 986 | 687 | 901 |
| 726 | Autoantibodies | 25 | 976 | 85 | 91 |
| 726 | Physical fitness | 27 | 976 | 210 | 223 |
| 728 | Magnetic Resonance Imaging | 46 | 971 | 35 | 59 |
| 728 | Ultrasonic Imaging | 24 | 971 | 78 | 39 |
| 730 | Vocational Education | 50 | 969 | 35 | 44 |
| 731 | Bioinorganic chemistry | 44 | 967 | 255 | 303 |
| 732 | Geomorphology | 33 | 965 | 309 | 420 |
| 733 | International Relations | 45 | 959 | 177 | 174 |
| 734 | Cell death | 22 | 953 | 359 | 445 |
| 735 | chronic disease | 20 | 951 | 61 | 50 |
| 735 | Bacteriophages | 2 | 951 | 36 | 6 |
| 737 | Alternative Medicine | 33 | 948 | 202 | 199 |
| 738 | Global Governance | 8 | 929 | 4 | 1 |
| 739 | food technology | 25 | 925 | 819 | 764 |
| 740 | Lipid | 14 | 922 | 92 | 76 |
| 741 | Statistical Mechanics | 22 | 921 | 170 | 102 |
| 742 | Industrial Ecology | 11 | 919 | 41 | 40 |
| 743 | Production Engineering | 16 | 917 | 781 | 381 |
| 744 | cell interaction | 20 | 915 | 272 | 259 |
| 745 | Rock Mechanics | 33 | 909 | 199 | 248 |
| 745 | Energy Storage | 30 | 909 | 263 | 332 |
| 747 | Lipid metabolism | 13 | 905 | 104 | 76 |
| 748 | Humanities | 57 | 904 | 84 | 105 |
| 748 | Semiconductors | 38 | 904 | 440 | 346 |
| 750 | plant molecular biology | 17 | 901 | 582 | 630 |
| 751 | Radioisotopes | 55 | 897 | 88 | 88 |
| 751 | family violence | 33 | 897 | 31 | 68 |
| 753 | Plant Taxonomy | 16 | 896 | 104 | 63 |
| 753 | Antioxidants | 12 | 896 | 285 | 259 |
| 755 | Personality Disorders | 16 | 892 | 62 | 49 |
| 756 | software | 16 | 889 | 304 | 185 |
| 757 | Cybernetics | 32 | 885 | 358 | 465 |
| 758 | Sun | 30 | 884 | 78 | 96 |
| 759 | magnetic resonance | 34 | 878 | 27 | 21 |
| 760 | Aerosols | 31 | 876 | 96 | 111 |
| 761 | Aquatic ecology | 18 | 875 | 255 | 141 |
| 762 | Inflammation | 24 | 874 | 237 | 319 |
| 762 | Parasitology | 46 | 874 | 424 | 539 |
| 764 | Geometry | 66 | 872 | 113 | 97 |
| 764 | Oxidative stress | 21 | 872 | 127 | 273 |
| 766 | Pharmacokinetics | 18 | 870 | 188 | 149 |
| 767 | Rheology | 31 | 869 | 92 | 105 |
| 767 | Radiotherapy | 42 | 869 | 44 | 31 |
| 769 | Ecohydrology | 17 | 868 | 36 | 10 |
| 770 | sex crimes | 32 | 865 | 77 | 97 |
| 771 | Food | 29 | 851 | 905 | 1,069 |
| 772 | International security | 19 | 850 | 36 | 65 |
| 773 | Insect biochemistry | 10 | 849 | 184 | 90 |
| 774 | Geographic information systems | 33 | 848 | 132 | 110 |
| 775 | energy resources | 12 | 846 | 613 | 576 |
| 776 | Enteral nutrition | 29 | 844 | 130 | 239 |
| 777 | Mechatronics | 17 | 841 | 259 | 165 |
| 778 | Smart Materials | 26 | 840 | 168 | 180 |
| 779 | Mass Media | 40 | 837 | 69 | 46 |
| 779 | cryosphere | 20 | 837 | 109 | 117 |
| 781 | General Surgery | 57 | 836 | 89 | 104 |
| 782 | Database Management | 32 | 829 | 151 | 191 |
| 783 | Tropical Medicine | 47 | 823 | 224 | 324 |
| 784 | Seaweed | 3 | 821 | 541 | 144 |
| 785 | Educational Technology | 45 | 818 | 167 | 339 |
| 785 | Electromagnetic compatibility | 22 | 818 | 72 | 41 |
| 785 | Plant breeding | 31 | 818 | 108 | 123 |
| 788 | Algae | 4 | 816 | 624 | 196 |
| 789 | Soil Mechanics | 25 | 813 | 331 | 345 |
| 790 | Molecular Spectroscopy | 24 | 807 | 529 | 361 |
| 791 | occupational diseases | 22 | 799 | 172 | 185 |
| 792 | energy development | 12 | 793 | 259 | 288 |
| 792 | race relations | 27 | 793 | 95 | 81 |
| 794 | Fisheries | 28 | 792 | 414 | 428 |
| 795 | Natural resources | 14 | 791 | 268 | 201 |
| 795 | Photobiology | 23 | 791 | 260 | 255 |
| 797 | Drug discovery | 18 | 788 | 13 | 19 |
| 798 | Quantum electronics | 28 | 786 | 437 | 342 |
| 799 | Industrial Engineering | 42 | 782 | 348 | 499 |
| 800 | Microfabrication | 27 | 780 | 33 | 37 |
| 801 | Immunochemistry | 39 | 779 | 102 | 169 |
| 801 | Japan | 31 | 779 | 321 | 249 |
| 803 | Neurogenetics | 42 | 778 | 8 | 28 |
| 803 | Intellectual disability | 32 | 778 | 162 | 197 |
| 805 | Forest Ecology | 20 | 774 | 310 | 314 |
| 805 | Capital market | 13 | 774 | 106 | 60 |
| 807 | fuel cells | 20 | 771 | 424 | 512 |
| 808 | Socioeconomic Factors | 29 | 766 | 106 | 139 |
| 809 | Power Electronics | 12 | 765 | 536 | 398 |
| 809 | Hydrodynamics | 14 | 765 | 227 | 145 |
| 811 | embryo transfer | 32 | 759 | 40 | 44 |
| 812 | Neurotransmitters | 22 | 758 | 43 | 95 |
| 813 | preimplantation genetic diagnosis | 31 | 757 | 41 | 38 |
| 813 | Chemical analysis | 21 | 757 | 265 | 241 |
| 815 | crime | 27 | 756 | 149 | 155 |
| 816 | Menopause | 17 | 746 | 61 | 46 |
| 817 | Magnetic Materials | 23 | 745 | 479 | 424 |
| 818 | Morphology | 25 | 744 | 183 | 141 |
| 819 | Asia | 43 | 741 | 420 | 464 |
| 820 | Structural design | 23 | 738 | 166 | 166 |
| 820 | cytokines | 19 | 738 | 308 | 339 |
| 822 | Maternal health services | 29 | 737 | 51 | 58 |
| 823 | Feminism | 20 | 735 | 131 | 62 |
| 824 | Engineering Geology | 30 | 731 | 335 | 430 |
| 825 | Social welfare | 28 | 729 | 98 | 90 |
| 825 | Paleopathology | 6 | 729 | 189 | 15 |
| 827 | Dentistry | 34 | 728 | 128 | 116 |
| 828 | natural disasters | 14 | 727 | 441 | 304 |
| 829 | Oral communication | 45 | 725 | 11 | 49 |
| 830 | touch | 19 | 717 | 14 | 13 |
| 831 | Differential Equations | 23 | 716 | 295 | 205 |
| 831 | Antigens | 41 | 716 | 91 | 198 |
| 831 | catalytic activity | 3 | 716 | 683 | 186 |
| 834 | health planning | 49 | 714 | 301 | 481 |
| 835 | Happiness | 13 | 712 | 71 | 58 |
| 836 | Food Microbiology | 15 | 710 | 436 | 466 |
| 837 | Sexual health | 79 | 709 | 35 | 139 |
| 838 | Liquid chromatography | 22 | 706 | 54 | 9 |
| 839 | Ferroelectricity | 31 | 705 | 215 | 152 |
| 840 | Stochastic Processes | 22 | 701 | 179 | 92 |
| 840 | internet | 34 | 701 | 282 | 475 |
| 842 | Energy Harvesting | 17 | 700 | 127 | 247 |
| 843 | mutation | 41 | 699 | 37 | 153 |
| 844 | Mining Engineering | 26 | 698 | 95 | 129 |
| 845 | Agricultural Ecology | 14 | 697 | 360 | 392 |
| 846 | Plastics | 25 | 696 | 461 | 384 |
| 847 | NMR | 23 | 695 | 61 | 31 |
| 848 | solar cells | 11 | 694 | 354 | 275 |
| 849 | Well-being | 6 | 692 | 57 | 10 |
| 850 | Strategic planning | 17 | 689 | 168 | 177 |
| 851 | Hydraulic Engineering | 18 | 688 | 317 | 237 |
| 852 | Community Colleges | 14 | 687 | 49 | 4 |
| 853 | language | 29 | 685 | 155 | 241 |
| 854 | Pregnancy | 24 | 679 | 154 | 158 |
| 855 | homosexuality | 18 | 678 | 66 | 59 |
| 855 | Birth control | 24 | 678 | 73 | 93 |
| 857 | Earthquakes | 44 | 677 | 32 | 60 |
| 858 | Geriatric Psychiatry | 29 | 676 | 166 | 232 |
| 859 | Flow cytometry | 19 | 675 | 50 | 53 |
| 860 | radiative transfer | 32 | 673 | 104 | 130 |
| 861 | Intelligent Transportation Systems | 23 | 669 | 267 | 397 |
| 861 | rural health | 27 | 669 | 25 | 26 |
| 861 | Middle East | 80 | 669 | 24 | 94 |
| 864 | Eating Disorders | 29 | 666 | 176 | 256 |
| 865 | Pediatric Hematology | 38 | 665 | 16 | 15 |
| 866 | Nuclear Energy | 154 | 662 | 47 | 191 |
| 867 | particles | 33 | 659 | 106 | 155 |
| 868 | cosmic rays | 31 | 657 | 57 | 58 |
| 869 | solar power | 9 | 650 | 387 | 258 |
| 870 | Fisheries Law | 17 | 647 | 38 | 55 |
| 870 | fisheries management | 17 | 647 | 38 | 55 |
| 872 | California | 47 | 642 | 41 | 82 |
| 873 | Nutrition physiology | 18 | 641 | 184 | 220 |
| 874 | role | 13 | 638 | 141 | 136 |
| 875 | Mycology | 25 | 637 | 446 | 553 |
| 876 | Building Materials | 21 | 635 | 651 | 837 |
| 876 | Proteome | 18 | 635 | 366 | 440 |
| 878 | Functional Genomics | 18 | 634 | 42 | 73 |
| 879 | Proteomics | 17 | 633 | 321 | 355 |
| 879 | Nonlinear functional analysis | 20 | 633 | 339 | 204 |
| 881 | Topology | 32 | 632 | 36 | 21 |
| 882 | Microprocessors | 16 | 629 | 138 | 50 |
| 883 | Calculus of Variations | 10 | 627 | 260 | 59 |
| 884 | disease outbreaks | 16 | 626 | 151 | 161 |
| 885 | consumers | 45 | 623 | 6 | 70 |
| 886 | Geobiology | 22 | 622 | 78 | 99 |
| 887 | aerosol | 19 | 621 | 87 | 86 |
| 888 | Environmental pollutants | 19 | 617 | 764 | 826 |
| 889 | Financial management | 22 | 614 | 62 | 152 |
| 890 | Aggression | 23 | 613 | 72 | 154 |
| 891 | men | 13 | 612 | 40 | 14 |
| 892 | Organ transplantation | 41 | 611 | 35 | 42 |
| 893 | Structural Engineering | 36 | 610 | 389 | 542 |
| 894 | Agricultural Chemistry | 13 | 608 | 1,053 | 840 |
| 895 | lasers | 22 | 605 | 761 | 573 |
| 896 | Melanoma | 17 | 602 | 14 | 32 |
| 896 | Metastasis | 5 | 602 | 81 | 74 |
| 898 | Arts | 29 | 601 | 29 | 15 |
| 898 | speech therapy | 31 | 601 | 60 | 84 |
| 900 | Histochemistry | 22 | 597 | 287 | 277 |
| 901 | Consumer Protection | 41 | 591 | 4 | 37 |
| 902 | Human Capital | 6 | 586 | 124 | 29 |
| 903 | Bipolar Disorder | 29 | 584 | 53 | 128 |
| 904 | Organic Geochemistry | 11 | 583 | 134 | 141 |
| 905 | Neurovirology | 23 | 582 | 34 | 50 |
| 906 | Radio wave propagation | 39 | 578 | 85 | 109 |
| 906 | Chemical structure | 5 | 578 | 346 | 35 |
| 908 | Hematopoietic stem cell transplantation | 11 | 576 | 130 | 111 |
| 908 | Feeding and Eating Disorders | 25 | 576 | 197 | 265 |
| 910 | Nuclear non-proliferation | 15 | 574 | 16 | 34 |
| 911 | Developmental Neurobiology | 24 | 572 | 56 | 87 |
| 912 | Pediatric Rheumatology | 23 | 570 | 26 | 23 |
| 912 | Ethnology | 96 | 570 | 78 | 253 |
| 914 | Soft Condensed Matter | 19 | 569 | 381 | 395 |
| 915 | Social Networks | 4 | 568 | 229 | 64 |
| 916 | Reproductive toxicology | 18 | 567 | 57 | 103 |
| 917 | pollutants | 16 | 566 | 683 | 751 |
| 918 | Electromagnetism | 28 | 561 | 232 | 272 |
| 918 | Consumer education | 38 | 561 | 9 | 85 |
| 920 | Computer Science | 31 | 559 | 408 | 419 |
| 920 | North America | 35 | 559 | 114 | 127 |
| 922 | Nanomedicine | 10 | 558 | 32 | 26 |
| 922 | hospice care | 29 | 558 | 49 | 64 |
| 922 | Histocompatibility Testing | 24 | 558 | 57 | 79 |
| 925 | Performance | 32 | 555 | 26 | 86 |
| 926 | Ethnoarchaeology | 13 | 552 | 30 | 29 |
| 927 | Marine Engineering | 332 | 551 | 1 | 26 |
| 927 | Water quality management | 29 | 551 | 400 | 500 |
| 929 | Thermodynamics | 22 | 550 | 297 | 189 |
| 930 | Marriage counseling | 14 | 545 | 81 | 76 |
| 931 | Metallography | 9 | 540 | 407 | 211 |
| 932 | Communication and Culture | 24 | 539 | 21 | 19 |
| 932 | sustainability | 10 | 539 | 361 | 370 |
| 932 | Investments | 12 | 539 | 118 | 47 |
| 935 | Morphogenesis | 8 | 538 | 8 | 8 |
| 936 | Randomized Controlled Trials | 44 | 532 | 125 | 192 |
| 937 | Cultural diversity | 11 | 531 | 57 | 46 |
| 937 | Antibodies | 33 | 531 | 63 | 177 |
| 939 | Neonatology | 21 | 530 | 103 | 123 |
| 940 | Radio frequency | 13 | 526 | 165 | 133 |
| 941 | Naval Architecture | 330 | 525 | 1 | 60 |
| 941 | Multicultural Education | 12 | 525 | 110 | 51 |
| 943 | Telemedicine | 20 | 521 | 48 | 68 |
| 943 | International Finance | 17 | 521 | 647 | 613 |
| 945 | Telecommunication Systems | 6 | 518 | 1,189 | 393 |
| 945 | Organometallic chemistry | 19 | 518 | 811 | 591 |
| 947 | Immunopharmacology | 12 | 516 | 415 | 315 |
| 948 | Epidemics | 13 | 515 | 174 | 183 |
| 949 | Discourse Analysis | 13 | 510 | 101 | 83 |
| 950 | women | 37 | 509 | 76 | 96 |
| 951 | Gender Studies | 13 | 508 | 151 | 96 |
| 951 | Databases | 21 | 508 | 101 | 125 |
| 953 | drug resistance | 10 | 507 | 238 | 179 |
| 954 | Thermochemistry | 18 | 506 | 140 | 118 |
| 954 | Business Ethics | 11 | 506 | 448 | 619 |
| 956 | Adhesion | 18 | 501 | 111 | 99 |
| 956 | adhesives | 18 | 501 | 121 | 100 |
| 958 | Photography | 105 | 499 | 189 | 143 |
| 959 | disabilities | 32 | 497 | 105 | 174 |
| 960 | Altitude Sickness | 22 | 496 | 15 | 20 |
| 960 | Altitude | 22 | 496 | 15 | 20 |
| 962 | primary prevention | 15 | 495 | 106 | 83 |
| 963 | Ocean Engineering | 21 | 494 | 616 | 706 |
| 963 | Self | 12 | 494 | 23 | 21 |
| 965 | Atomic spectroscopy | 33 | 492 | 220 | 352 |
| 966 | Probability | 24 | 491 | 96 | 182 |
| 967 | healthcare disparities | 33 | 488 | 48 | 97 |
| 968 | DNA methylation | 12 | 484 | 62 | 90 |
| 969 | Pediatric Dermatology | 28 | 483 | 59 | 63 |
| 969 | Gene expression | 8 | 483 | 110 | 74 |
| 971 | Familial diseases | 24 | 482 | 16 | 24 |
| 972 | Risk Management | 19 | 476 | 139 | 178 |
| 973 | Land use | 8 | 475 | 633 | 420 |
| 973 | pain management | 10 | 475 | 248 | 163 |
| 975 | Quality Control | 15 | 474 | 581 | 580 |
| 975 | Securities | 7 | 474 | 118 | 61 |
| 975 | DNA repair | 8 | 474 | 109 | 84 |
| 978 | Obstetric Nursing | 29 | 473 | 37 | 52 |
| 979 | Electronic Packaging | 3 | 471 | 215 | 40 |
| 980 | curriculum planning | 13 | 468 | 34 | 20 |
| 981 | Immunohistochemistry | 30 | 467 | 8 | 13 |
| 981 | Diplomatic relations | 42 | 467 | 84 | 64 |
| 981 | liver | 18 | 467 | 43 | 47 |
| 984 | Futures | 12 | 464 | 75 | 47 |
| 985 | soil microbiology | 11 | 462 | 709 | 864 |
| 986 | Nonverbal Communication | 13 | 461 | 42 | 62 |
| 987 | Nuclear Chemistry | 54 | 456 | 107 | 252 |
| 988 | Medical Imaging | 27 | 454 | 52 | 85 |
| 988 | Neuroimmunology | 13 | 454 | 242 | 347 |
| 990 | school psychologists | 16 | 453 | 57 | 97 |
| 991 | Africa | 28 | 451 | 317 | 301 |
| 992 | Culture techniques | 21 | 449 | 48 | 61 |
| 993 | Forest Management | 20 | 448 | 289 | 418 |
| 994 | Structuralism | 3 | 447 | 148 | 75 |
| 995 | Plant diseases | 13 | 446 | 935 | 756 |
| 996 | Relationships | 10 | 445 | 41 | 51 |
| 997 | Information Retrieval | 11 | 443 | 155 | 167 |
| 998 | Food additives | 17 | 442 | 333 | 502 |
| 999 | Risk | 15 | 441 | 160 | 214 |
| 1000 | Remote Sensing | 16 | 440 | 547 | 374 |