| 1 | Science | 2,121 | 244.9K | 128 | 102 |
| 2 | Biology | 3,014 | 217.8K | 68 | 117 |
| 3 | Medicine | 2,779 | 205.8K | 79 | 64 |
| 4 | Physics | 1,745 | 186.6K | 243 | 164 |
| 5 | Neurology | 2,693 | 174.5K | 33 | 44 |
| 6 | Biochemistry | 2,762 | 156.3K | 86 | 72 |
| 7 | Microbiology | 1,431 | 123.6K | 61 | 38 |
| 8 | Natural history | 392 | 121.0K | 126 | 101 |
| 9 | Molecular Biology | 1,672 | 117.8K | 115 | 110 |
| 10 | Psychiatry | 1,207 | 101.1K | 36 | 25 |
| 11 | Cytology | 906 | 92.2K | 75 | 73 |
| 12 | Cell Biology | 762 | 85.0K | 77 | 73 |
| 13 | Virology | 604 | 73.9K | 50 | 58 |
| 14 | Human genetics | 364 | 67.4K | 59 | 73 |
| 15 | Psychology | 1,210 | 61.2K | 48 | 52 |
| 16 | Research | 1,583 | 61.2K | 112 | 115 |
| 17 | Genetics | 734 | 60.0K | 60 | 66 |
| 18 | Geophysics | 1,207 | 59.9K | 44 | 42 |
| 19 | Medical genetics | 730 | 58.8K | 35 | 33 |
| 20 | Immunology | 844 | 58.7K | 43 | 52 |
| 21 | Chemistry | 1,122 | 57.6K | 369 | 372 |
| 22 | Neurophysiology | 662 | 55.0K | 47 | 42 |
| 23 | Psychophysiology | 946 | 54.9K | 24 | 28 |
| 24 | Physiology | 1,093 | 52.5K | 42 | 43 |
| 25 | United States | 2,096 | 48.2K | 33 | 62 |
| 26 | Astrophysics | 1,141 | 46.6K | 144 | 250 |
| 27 | Nuclear Physics | 971 | 45.4K | 230 | 189 |
| 28 | Biophysics | 1,081 | 45.3K | 82 | 73 |
| 29 | Social Psychology | 362 | 44.5K | 55 | 28 |
| 30 | Environmental Health | 671 | 43.8K | 79 | 69 |
| 31 | Pediatrics | 781 | 39.1K | 38 | 44 |
| 32 | Surgery | 311 | 37.8K | 49 | 65 |
| 33 | Mental Disorders | 359 | 36.7K | 87 | 41 |
| 34 | Brain | 582 | 33.4K | 34 | 36 |
| 35 | Diagnostic microbiology | 288 | 32.9K | 4 | 3 |
| 36 | Environment | 500 | 31.7K | 118 | 163 |
| 37 | Pollution | 444 | 31.6K | 170 | 152 |
| 38 | Cardiovascular system | 356 | 31.2K | 49 | 58 |
| 39 | Planets | 718 | 31.1K | 20 | 29 |
| 40 | Endocrinology | 656 | 30.8K | 65 | 109 |
| 41 | Environmental Engineering | 396 | 29.8K | 78 | 63 |
| 42 | Hypertension | 457 | 29.7K | 34 | 48 |
| 43 | Pharmacology | 982 | 29.4K | 84 | 122 |
| 44 | Behavior | 527 | 29.2K | 58 | 59 |
| 45 | Hematology | 730 | 29.0K | 59 | 82 |
| 46 | Immunity | 216 | 28.6K | 76 | 76 |
| 47 | Ophthalmology | 544 | 28.5K | 19 | 14 |
| 48 | viruses | 320 | 28.2K | 31 | 24 |
| 49 | pain | 244 | 28.0K | 30 | 16 |
| 50 | Medical Microbiology | 322 | 26.1K | 27 | 16 |
| 51 | Developmental Biology | 375 | 25.2K | 55 | 61 |
| 52 | Urology | 749 | 24.0K | 22 | 27 |
| 53 | Ecology | 370 | 23.8K | 385 | 363 |
| 54 | sanitation | 263 | 23.7K | 39 | 42 |
| 55 | Spectrum analysis | 610 | 23.6K | 159 | 262 |
| 56 | Economics | 328 | 23.2K | 223 | 92 |
| 57 | Radiography | 203 | 22.9K | 18 | 4 |
| 58 | Nervous system | 336 | 22.5K | 52 | 58 |
| 59 | Statistics | 562 | 21.6K | 33 | 49 |
| 60 | Speech Disorders | 598 | 21.5K | 3 | 2 |
| 61 | Obstetrics | 589 | 21.1K | 36 | 37 |
| 62 | Neuropsychology | 341 | 20.6K | 39 | 18 |
| 63 | Public Health | 514 | 20.6K | 181 | 189 |
| 64 | Mathematics | 1,197 | 20.6K | 77 | 68 |
| 65 | Child psychology | 380 | 20.5K | 29 | 43 |
| 66 | Mental illness | 238 | 20.0K | 70 | 52 |
| 67 | Astronomy | 328 | 19.9K | 307 | 314 |
| 68 | Psychopharmacology | 199 | 19.7K | 52 | 31 |
| 69 | Child Development | 288 | 19.6K | 57 | 49 |
| 70 | Geriatrics | 621 | 19.5K | 36 | 57 |
| 71 | Cancer | 329 | 19.5K | 149 | 145 |
| 72 | Neurobiology | 219 | 19.4K | 68 | 46 |
| 73 | human behavior | 267 | 19.2K | 75 | 72 |
| 74 | Speech | 550 | 19.1K | 2 | 4 |
| 75 | Cognition | 216 | 18.9K | 73 | 35 |
| 76 | personality | 160 | 18.2K | 71 | 39 |
| 77 | free radicals | 186 | 18.1K | 12 | 6 |
| 78 | Biomechanics | 272 | 17.9K | 11 | 10 |
| 79 | Orthopedics | 341 | 17.8K | 14 | 10 |
| 80 | Cytogenetics | 185 | 17.7K | 46 | 42 |
| 81 | Metabolic diseases | 189 | 17.7K | 135 | 114 |
| 82 | Education | 845 | 17.1K | 26 | 66 |
| 83 | Epidemiology | 342 | 17.0K | 119 | 114 |
| 84 | Neurochemistry | 356 | 16.5K | 52 | 61 |
| 85 | Medical Physics | 388 | 15.6K | 35 | 29 |
| 86 | Atmospheric Physics | 199 | 15.5K | 100 | 63 |
| 87 | Hydraulic Engineering | 505 | 15.5K | 3 | 1 |
| 88 | Toxicology | 418 | 15.4K | 116 | 116 |
| 89 | Critical Care | 186 | 15.3K | 70 | 65 |
| 90 | Critical Care Medicine | 182 | 15.3K | 74 | 66 |
| 91 | Biomedical Engineering | 391 | 15.2K | 152 | 145 |
| 92 | Memory | 331 | 15.0K | 45 | 44 |
| 93 | Growth | 165 | 15.0K | 57 | 63 |
| 94 | Hearing | 407 | 14.9K | 2 | 2 |
| 95 | Audiology | 347 | 14.8K | 1 | 3 |
| 96 | Perception | 348 | 14.7K | 41 | 39 |
| 97 | management | 146 | 14.0K | 292 | 200 |
| 98 | Language Disorders | 314 | 13.8K | 5 | 2 |
| 99 | Biotechnology | 230 | 13.6K | 445 | 388 |
| 100 | Neurons | 74 | 13.4K | 59 | 76 |
| 101 | Sociology | 273 | 13.2K | 108 | 91 |
| 102 | Respiration | 283 | 13.2K | 24 | 27 |
| 103 | Atmospheric Chemistry | 127 | 13.2K | 84 | 56 |
| 104 | Pathology | 203 | 13.1K | 117 | 86 |
| 105 | Clinical Psychology | 190 | 12.9K | 38 | 37 |
| 106 | Metabolism | 230 | 12.8K | 168 | 187 |
| 107 | Communication | 495 | 12.7K | 10 | 31 |
| 108 | drug therapy | 478 | 12.6K | 22 | 47 |
| 109 | Meteorology | 170 | 12.6K | 177 | 129 |
| 110 | Anatomy | 311 | 12.5K | 34 | 66 |
| 111 | Bioengineering | 203 | 12.1K | 265 | 273 |
| 112 | Nutrition | 335 | 12.0K | 150 | 206 |
| 113 | Allergy | 93 | 12.0K | 89 | 75 |
| 114 | Cognitive neuroscience | 100 | 11.7K | 70 | 50 |
| 115 | Decision making | 117 | 11.7K | 45 | 21 |
| 116 | Physical Therapy | 209 | 11.7K | 33 | 25 |
| 117 | Hydrology | 222 | 11.5K | 83 | 67 |
| 118 | Materials | 172 | 11.4K | 843 | 572 |
| 119 | Pharmacy | 531 | 11.3K | 12 | 34 |
| 120 | Pediatric Neurology | 132 | 11.2K | 38 | 57 |
| 121 | Hemodynamics | 196 | 11.2K | 10 | 17 |
| 122 | Bacteriology | 144 | 11.2K | 124 | 100 |
| 123 | Water | 151 | 11.1K | 154 | 128 |
| 124 | Technology | 187 | 11.0K | 247 | 99 |
| 125 | Political Science | 199 | 10.9K | 76 | 41 |
| 126 | Cerebral cortex | 109 | 10.9K | 37 | 23 |
| 127 | Sports Medicine | 238 | 10.7K | 79 | 72 |
| 128 | Medical Oncology | 195 | 10.7K | 82 | 67 |
| 129 | Aging | 430 | 10.6K | 50 | 115 |
| 130 | finance | 108 | 10.5K | 197 | 73 |
| 131 | Dermatology | 264 | 10.5K | 61 | 54 |
| 132 | Transplantation | 196 | 10.3K | 47 | 52 |
| 133 | Host-parasite interactions | 94 | 10.3K | 67 | 59 |
| 134 | Spine | 144 | 10.1K | 17 | 15 |
| 135 | Personality Assessment | 75 | 10.0K | 19 | 3 |
| 136 | Structural optimization | 75 | 9.9K | 10 | 3 |
| 137 | Game Theory | 30 | 9.8K | 82 | 2 |
| 138 | Nanotechnology | 115 | 9.7K | 797 | 527 |
| 139 | Radiobiology | 191 | 9.5K | 56 | 47 |
| 140 | Learning | 214 | 9.5K | 19 | 38 |
| 141 | Diagnostic Imaging | 123 | 9.5K | 108 | 42 |
| 142 | Diabetes | 141 | 9.5K | 150 | 141 |
| 143 | Attention | 256 | 9.5K | 52 | 46 |
| 144 | Geology | 182 | 9.5K | 303 | 225 |
| 145 | Vocational guidance | 334 | 9.4K | 9 | 22 |
| 146 | Schizophrenia | 114 | 9.3K | 68 | 35 |
| 147 | Diabetes mellitus | 138 | 9.3K | 132 | 135 |
| 148 | Virulence | 99 | 9.3K | 64 | 51 |
| 149 | Neuropsychiatry | 147 | 9.2K | 11 | 8 |
| 150 | Molecular Microbiology | 86 | 9.1K | 50 | 27 |
| 151 | Oncology | 130 | 9.1K | 144 | 207 |
| 152 | Visual Perception | 225 | 9.1K | 57 | 48 |
| 153 | Pharmaceutical Chemistry | 312 | 9.0K | 145 | 215 |
| 154 | Gerontology | 381 | 8.9K | 32 | 33 |
| 155 | Cell differentiation | 193 | 8.9K | 67 | 164 |
| 156 | Experimental Psychology | 88 | 8.8K | 12 | 9 |
| 157 | psychopathology | 36 | 8.7K | 33 | 6 |
| 158 | Embryology | 173 | 8.7K | 84 | 108 |
| 159 | Organizational Behavior | 46 | 8.5K | 48 | 16 |
| 160 | Cell metabolism | 45 | 8.5K | 30 | 42 |
| 161 | Homeostasis | 42 | 8.5K | 25 | 42 |
| 162 | Environmental Toxicology | 106 | 8.5K | 125 | 62 |
| 163 | Social Sciences | 266 | 8.3K | 106 | 101 |
| 164 | biological evolution | 111 | 8.2K | 204 | 202 |
| 165 | Diet | 253 | 8.2K | 43 | 134 |
| 166 | counseling | 381 | 8.2K | 5 | 22 |
| 167 | Animal Behavior | 156 | 8.2K | 166 | 158 |
| 168 | Genomics | 154 | 8.2K | 202 | 141 |
| 169 | gene therapy | 142 | 8.1K | 20 | 21 |
| 170 | Social behavior | 131 | 8.1K | 37 | 34 |
| 171 | cell physiology | 170 | 8.0K | 54 | 91 |
| 172 | Microbial Ecology | 106 | 7.9K | 210 | 209 |
| 173 | Immune system | 47 | 7.9K | 130 | 122 |
| 174 | Fluid Mechanics | 204 | 7.8K | 38 | 30 |
| 175 | Botany | 223 | 7.8K | 355 | 425 |
| 176 | water supply | 100 | 7.8K | 56 | 43 |
| 177 | arthritis | 113 | 7.7K | 85 | 75 |
| 178 | Biocompatible Materials | 177 | 7.6K | 367 | 443 |
| 179 | Health | 248 | 7.6K | 54 | 73 |
| 180 | Biometrics | 161 | 7.5K | 37 | 38 |
| 181 | psychotherapy | 89 | 7.5K | 121 | 76 |
| 182 | nucleic acids | 164 | 7.4K | 85 | 205 |
| 183 | Histology | 139 | 7.3K | 84 | 67 |
| 184 | Genetic therapy | 137 | 7.3K | 32 | 29 |
| 185 | Retina | 25 | 7.3K | 8 | 2 |
| 185 | eye | 25 | 7.3K | 13 | 2 |
| 187 | Music | 164 | 7.3K | 3 | 1 |
| 188 | Psychosomatic Medicine | 122 | 7.3K | 22 | 29 |
| 189 | voice | 123 | 7.1K | 3 | 1 |
| 190 | Engineering | 347 | 7.0K | 97 | 136 |
| 191 | Child | 311 | 7.0K | 54 | 87 |
| 192 | Infertility | 143 | 6.9K | 31 | 40 |
| 193 | fertility | 144 | 6.9K | 37 | 43 |
| 194 | Thrombosis | 139 | 6.9K | 40 | 46 |
| 195 | behavior modification | 131 | 6.9K | 9 | 11 |
| 196 | organization | 17 | 6.9K | 262 | 62 |
| 197 | Ergonomics | 193 | 6.8K | 29 | 16 |
| 198 | Biochemical Engineering | 42 | 6.8K | 827 | 397 |
| 199 | Earth Sciences | 75 | 6.8K | 510 | 222 |
| 200 | environmental pollution | 172 | 6.8K | 332 | 378 |
| 201 | Computational Biology | 88 | 6.7K | 262 | 204 |
| 202 | Immunotherapy | 67 | 6.6K | 207 | 130 |
| 203 | natural products | 94 | 6.6K | 89 | 29 |
| 204 | Environmental monitoring | 185 | 6.5K | 158 | 261 |
| 204 | Condensed Matter | 199 | 6.5K | 463 | 450 |
| 206 | Solid State Physics | 197 | 6.5K | 510 | 457 |
| 207 | older people | 389 | 6.5K | 29 | 25 |
| 208 | vascular diseases | 123 | 6.4K | 27 | 39 |
| 209 | Automation | 143 | 6.4K | 165 | 201 |
| 210 | Polymers | 187 | 6.3K | 513 | 462 |
| 211 | Clinical Chemistry | 174 | 6.3K | 159 | 185 |
| 212 | Engineering Mathematics | 135 | 6.3K | 66 | 29 |
| 213 | Educational Psychology | 174 | 6.2K | 50 | 77 |
| 214 | rehabilitation | 172 | 6.2K | 97 | 110 |
| 215 | Psychometrics | 100 | 6.1K | 25 | 30 |
| 216 | Cognitive Science | 67 | 6.1K | 127 | 90 |
| 217 | Immunopathology | 88 | 6.1K | 96 | 34 |
| 218 | Developmental Psychology | 111 | 6.1K | 57 | 69 |
| 219 | gene mapping | 107 | 6.0K | 108 | 125 |
| 220 | Physical Chemistry | 87 | 6.0K | 284 | 171 |
| 221 | Sports | 174 | 5.9K | 92 | 85 |
| 222 | Oxidation-reduction | 84 | 5.9K | 10 | 20 |
| 223 | proteins | 81 | 5.8K | 202 | 102 |
| 224 | Otolaryngology | 156 | 5.8K | 15 | 9 |
| 225 | marketing | 75 | 5.8K | 202 | 170 |
| 226 | Therapeutics | 198 | 5.8K | 53 | 111 |
| 227 | Nuclear Medicine | 53 | 5.7K | 135 | 38 |
| 228 | Materials Science | 134 | 5.7K | 601 | 569 |
| 229 | Molecular Genetics | 90 | 5.7K | 176 | 157 |
| 230 | Quantum Gravity | 210 | 5.7K | 307 | 386 |
| 231 | Teaching | 282 | 5.7K | 17 | 54 |
| 232 | Statistical physics | 153 | 5.6K | 497 | 400 |
| 233 | Analytical Biochemistry | 102 | 5.6K | 45 | 45 |
| 234 | Surface Chemistry | 102 | 5.5K | 596 | 403 |
| 235 | Bioinformatics | 71 | 5.5K | 250 | 185 |
| 236 | Analytical Chemistry | 187 | 5.5K | 429 | 485 |
| 237 | Europe | 63 | 5.5K | 526 | 145 |
| 238 | Ethology | 95 | 5.5K | 190 | 180 |
| 239 | alcoholism | 153 | 5.4K | 85 | 82 |
| 240 | Econometrics | 99 | 5.4K | 85 | 92 |
| 241 | Operations Research | 144 | 5.4K | 117 | 124 |
| 242 | Colloids | 96 | 5.3K | 634 | 463 |
| 243 | Psycholinguistics | 119 | 5.3K | 49 | 59 |
| 244 | Nursing | 237 | 5.3K | 24 | 33 |
| 245 | polymerization | 153 | 5.2K | 477 | 431 |
| 246 | United Kingdom | 75 | 5.2K | 177 | 109 |
| 247 | Chemotherapy | 171 | 5.1K | 22 | 28 |
| 248 | Organic Chemistry | 190 | 5.1K | 196 | 275 |
| 249 | blood transfusion | 183 | 5.0K | 14 | 14 |
| 250 | Health Policy | 131 | 5.0K | 151 | 118 |
| 251 | Obesity | 115 | 5.0K | 169 | 175 |
| 252 | Genetic engineering | 86 | 5.0K | 157 | 129 |
| 253 | Neurosurgery | 97 | 5.0K | 24 | 26 |
| 254 | Microorganisms | 15 | 5.0K | 355 | 63 |
| 255 | Transportation | 142 | 4.9K | 105 | 107 |
| 255 | Molecular Imaging | 18 | 4.9K | 186 | 34 |
| 257 | Dentistry | 225 | 4.9K | 10 | 11 |
| 258 | child abuse | 80 | 4.9K | 45 | 32 |
| 259 | protein | 58 | 4.8K | 122 | 71 |
| 260 | Hydrodynamics | 128 | 4.8K | 5 | 12 |
| 261 | Muscles | 101 | 4.8K | 24 | 28 |
| 262 | Antioxidants | 56 | 4.8K | 23 | 22 |
| 263 | Nonlinear Dynamics | 100 | 4.7K | 290 | 175 |
| 264 | Chromosome mapping | 88 | 4.7K | 106 | 108 |
| 265 | Electronics | 132 | 4.7K | 380 | 291 |
| 266 | Lipids | 64 | 4.7K | 112 | 74 |
| 267 | human development | 86 | 4.7K | 40 | 42 |
| 268 | Image Processing | 75 | 4.7K | 276 | 199 |
| 269 | Climatology | 100 | 4.6K | 175 | 182 |
| 270 | nanoscience | 18 | 4.6K | 1,200 | 406 |
| 271 | Catalysis | 106 | 4.6K | 676 | 674 |
| 272 | medical education | 213 | 4.6K | 93 | 114 |
| 273 | Elderly | 276 | 4.6K | 30 | 7 |
| 274 | Women's health | 134 | 4.5K | 27 | 25 |
| 275 | Rheumatology | 78 | 4.5K | 100 | 96 |
| 276 | Pharmacognosy | 94 | 4.5K | 116 | 90 |
| 277 | Liver diseases | 54 | 4.5K | 245 | 227 |
| 278 | Neuromuscular diseases | 96 | 4.5K | 21 | 19 |
| 279 | infection | 67 | 4.4K | 175 | 98 |
| 280 | Water pollution | 64 | 4.4K | 438 | 302 |
| 281 | Signal Transduction | 63 | 4.4K | 114 | 109 |
| 282 | Orthopedic Surgery | 81 | 4.4K | 35 | 9 |
| 283 | Emotions | 39 | 4.3K | 75 | 30 |
| 284 | Optics | 367 | 4.3K | 261 | 437 |
| 285 | Infections | 65 | 4.2K | 97 | 77 |
| 286 | Molecular evolution | 58 | 4.2K | 167 | 134 |
| 286 | enzymes | 132 | 4.2K | 40 | 58 |
| 288 | Bacterial infections | 30 | 4.2K | 105 | 67 |
| 289 | Developmental Genetics | 42 | 4.2K | 74 | 82 |
| 290 | Health Education | 299 | 4.2K | 33 | 115 |
| 291 | Vaccines | 100 | 4.1K | 124 | 95 |
| 292 | Drug delivery systems | 103 | 4.1K | 38 | 101 |
| 293 | Artificial Intelligence | 118 | 4.1K | 353 | 384 |
| 294 | Renewable Energy Sources | 41 | 4.1K | 505 | 391 |
| 295 | behavior therapy | 61 | 4.1K | 103 | 56 |
| 296 | Thorax | 89 | 4.1K | 34 | 27 |
| 297 | motivation | 43 | 4.0K | 8 | 7 |
| 298 | genome | 80 | 4.0K | 137 | 239 |
| 299 | Oncogenes | 58 | 4.0K | 151 | 164 |
| 300 | Teratology | 72 | 4.0K | 9 | 6 |
| 301 | mycoses | 26 | 4.0K | 120 | 69 |
| 302 | Eating Disorders | 97 | 3.9K | 49 | 46 |
| 303 | Adolescent | 188 | 3.9K | 92 | 144 |
| 304 | Numerical Analysis | 144 | 3.9K | 80 | 69 |
| 305 | Ocean Engineering | 83 | 3.9K | 198 | 132 |
| 306 | Adolescent Medicine | 70 | 3.8K | 47 | 57 |
| 307 | Performance | 63 | 3.8K | 3 | 2 |
| 308 | Signal Processing | 105 | 3.8K | 317 | 328 |
| 309 | Health promotion | 154 | 3.8K | 48 | 81 |
| 310 | Feeding and Eating Disorders | 62 | 3.8K | 72 | 42 |
| 311 | North America | 109 | 3.8K | 31 | 9 |
| 312 | Genetic regulation | 50 | 3.7K | 115 | 126 |
| 313 | behavioral medicine | 104 | 3.7K | 66 | 142 |
| 314 | Recombinant DNA | 66 | 3.6K | 102 | 54 |
| 315 | preventive medicine | 110 | 3.6K | 63 | 113 |
| 316 | Natural resources | 55 | 3.6K | 50 | 28 |
| 317 | Family | 114 | 3.6K | 46 | 48 |
| 318 | Anthropology | 221 | 3.6K | 62 | 82 |
| 319 | mathematical analysis | 214 | 3.5K | 75 | 85 |
| 320 | Algebra | 199 | 3.5K | 13 | 10 |
| 321 | Social work | 181 | 3.5K | 65 | 67 |
| 322 | Reproduction | 107 | 3.5K | 224 | 234 |
| 323 | drug development | 41 | 3.5K | 98 | 116 |
| 324 | Developmental Disabilities | 71 | 3.5K | 95 | 97 |
| 325 | Substance Abuse | 117 | 3.5K | 94 | 93 |
| 326 | language | 148 | 3.5K | 12 | 45 |
| 327 | Gene expression regulation | 51 | 3.4K | 81 | 98 |
| 328 | Special Education | 144 | 3.4K | 28 | 34 |
| 329 | Population Genetics | 18 | 3.4K | 432 | 157 |
| 330 | Community Psychology | 27 | 3.4K | 102 | 50 |
| 331 | Geochemistry | 84 | 3.4K | 335 | 344 |
| 332 | Molecular structure | 39 | 3.3K | 506 | 206 |
| 333 | Molecular cloning | 59 | 3.3K | 100 | 53 |
| 333 | Genetic recombination | 59 | 3.3K | 94 | 53 |
| 335 | Learning disabilities | 109 | 3.3K | 35 | 40 |
| 336 | Membranes | 104 | 3.3K | 158 | 245 |
| 337 | Medical innovations | 34 | 3.3K | 126 | 133 |
| 338 | Bioorganic chemistry | 123 | 3.3K | 221 | 327 |
| 339 | Pharmaceutical Technology | 120 | 3.3K | 28 | 73 |
| 340 | Evolution | 68 | 3.3K | 288 | 338 |
| 341 | Mycology | 128 | 3.3K | 76 | 141 |
| 342 | Environmental Policy | 61 | 3.2K | 518 | 489 |
| 343 | Manufacturing Processes | 69 | 3.2K | 321 | 207 |
| 344 | Criminology | 75 | 3.2K | 92 | 64 |
| 345 | Hormones | 69 | 3.2K | 115 | 102 |
| 346 | Emergency Medicine | 154 | 3.1K | 62 | 73 |
| 347 | Functional Analysis | 109 | 3.1K | 38 | 26 |
| 348 | Computer Vision | 37 | 3.1K | 184 | 149 |
| 349 | Medical Laboratory Science | 89 | 3.1K | 156 | 250 |
| 350 | biological factors | 39 | 3.0K | 322 | 119 |
| 351 | Sleep | 83 | 3.0K | 137 | 150 |
| 352 | Comparative Physiology | 90 | 3.0K | 37 | 49 |
| 353 | Personality Disorders | 51 | 3.0K | 18 | 13 |
| 354 | environmental protection | 61 | 3.0K | 529 | 442 |
| 355 | Statistical Mechanics | 99 | 3.0K | 33 | 36 |
| 356 | Telecommunication | 82 | 3.0K | 350 | 355 |
| 357 | Magnetohydrodynamics | 98 | 3.0K | 19 | 20 |
| 358 | Linguistics | 95 | 3.0K | 112 | 100 |
| 359 | Nanostructured Materials | 59 | 2.9K | 721 | 577 |
| 360 | Geography | 90 | 2.9K | 240 | 251 |
| 361 | Sleep Disorders | 77 | 2.9K | 151 | 150 |
| 362 | Community Psychiatry | 62 | 2.9K | 87 | 80 |
| 363 | Molecular ecology | 14 | 2.9K | 462 | 185 |
| 364 | Solar System | 87 | 2.9K | 79 | 96 |
| 365 | Criminal psychology | 43 | 2.8K | 120 | 74 |
| 366 | Journalism | 67 | 2.8K | 13 | 5 |
| 367 | Vocational Education | 138 | 2.8K | 2 | 7 |
| 368 | Digestive system diseases | 96 | 2.8K | 40 | 38 |
| 369 | Neurolinguistics | 51 | 2.8K | 21 | 22 |
| 370 | brain mapping | 39 | 2.8K | 92 | 71 |
| 371 | Metallurgy | 42 | 2.8K | 503 | 296 |
| 372 | crime | 55 | 2.7K | 59 | 38 |
| 373 | Proteomics | 15 | 2.7K | 378 | 85 |
| 374 | industrial hygiene | 102 | 2.7K | 21 | 10 |
| 375 | Production Engineering | 77 | 2.7K | 208 | 120 |
| 376 | Elections | 62 | 2.7K | 10 | 8 |
| 377 | Dental Public Health | 130 | 2.7K | 2 | 3 |
| 378 | Neuroimmunology | 38 | 2.7K | 72 | 67 |
| 379 | Immunochemistry | 90 | 2.7K | 12 | 12 |
| 380 | Information Theory | 77 | 2.7K | 131 | 137 |
| 381 | Drug design | 91 | 2.7K | 35 | 86 |
| 382 | Traffic Engineering | 28 | 2.7K | 43 | 17 |
| 383 | System analysis | 106 | 2.7K | 156 | 192 |
| 384 | probabilities | 83 | 2.6K | 127 | 47 |
| 385 | health services | 116 | 2.6K | 56 | 71 |
| 386 | drug addiction | 77 | 2.6K | 123 | 138 |
| 387 | Mechanical Engineering | 68 | 2.6K | 361 | 157 |
| 388 | abnormalities | 50 | 2.6K | 2 | 3 |
| 389 | Anxiety Disorders | 29 | 2.5K | 93 | 73 |
| 389 | Anxiety | 29 | 2.5K | 92 | 72 |
| 391 | Primary health care | 131 | 2.5K | 78 | 130 |
| 392 | Paleontology | 79 | 2.5K | 140 | 94 |
| 393 | General Surgery | 70 | 2.5K | 79 | 25 |
| 393 | Political Participation | 56 | 2.5K | 6 | 8 |
| 395 | election law | 57 | 2.5K | 4 | 8 |
| 396 | Voting | 54 | 2.5K | 5 | 8 |
| 397 | Psychoneuroimmunology | 35 | 2.5K | 66 | 60 |
| 397 | drugs | 82 | 2.5K | 183 | 194 |
| 399 | Mental Health Services | 94 | 2.5K | 77 | 82 |
| 400 | Medical Anthropology | 65 | 2.4K | 136 | 201 |
| 401 | Emotion | 12 | 2.4K | 46 | 9 |
| 402 | Health Services Administration | 50 | 2.4K | 89 | 69 |
| 403 | Morphology | 88 | 2.4K | 25 | 35 |
| 404 | Cardiovascular diseases | 88 | 2.4K | 154 | 185 |
| 404 | Parasitic Diseases | 53 | 2.4K | 247 | 193 |
| 406 | Agriculture | 53 | 2.4K | 313 | 244 |
| 407 | Computer Graphics | 79 | 2.4K | 178 | 210 |
| 407 | Clinical Immunology | 67 | 2.4K | 99 | 97 |
| 409 | Research Design | 97 | 2.3K | 64 | 159 |
| 410 | Organometallic compounds | 31 | 2.3K | 308 | 108 |
| 410 | Metals | 31 | 2.3K | 533 | 328 |
| 412 | Occupational Health | 78 | 2.3K | 54 | 54 |
| 413 | Structural design | 73 | 2.3K | 35 | 41 |
| 414 | Stem cells | 57 | 2.3K | 197 | 219 |
| 415 | Computer-Aided Design | 69 | 2.3K | 75 | 82 |
| 416 | Cell death | 27 | 2.2K | 295 | 241 |
| 417 | environmental exposure | 73 | 2.2K | 120 | 162 |
| 418 | Antibacterial agents | 36 | 2.2K | 46 | 17 |
| 419 | Dietetics | 147 | 2.2K | 15 | 43 |
| 420 | Environmental Chemistry | 60 | 2.2K | 219 | 406 |
| 421 | Disease | 13 | 2.2K | 64 | 170 |
| 422 | Telemedicine | 53 | 2.2K | 10 | 10 |
| 423 | Climate | 43 | 2.2K | 23 | 36 |
| 424 | Mineralogy | 54 | 2.2K | 264 | 237 |
| 425 | Biopharmaceutics | 68 | 2.2K | 46 | 84 |
| 426 | Quality Control | 59 | 2.1K | 112 | 101 |
| 427 | Oxidative stress | 49 | 2.1K | 27 | 85 |
| 428 | Mental Health | 98 | 2.1K | 110 | 144 |
| 429 | Child welfare | 75 | 2.1K | 75 | 56 |
| 430 | viral genetics | 8 | 2.1K | 140 | 104 |
| 431 | Naval Architecture | 99 | 2.1K | 16 | 10 |
| 432 | Radiology | 120 | 2.1K | 63 | 75 |
| 433 | Pharmacogenetics | 46 | 2.1K | 90 | 88 |
| 434 | insurance | 60 | 2.1K | 17 | 12 |
| 435 | Human evolution | 30 | 2.1K | 78 | 62 |
| 436 | Kidney diseases | 38 | 2.1K | 128 | 90 |
| 437 | peace | 43 | 2.1K | 42 | 48 |
| 438 | Actuarial Science | 53 | 2.0K | 13 | 10 |
| 439 | Public Speaking | 110 | 2.0K | 2 | 2 |
| 440 | Cybernetics | 62 | 2.0K | 184 | 263 |
| 440 | Health insurance | 83 | 2.0K | 24 | 60 |
| 442 | speech therapy | 53 | 2.0K | 28 | 16 |
| 442 | Social interaction | 33 | 2.0K | 19 | 13 |
| 444 | Vision | 63 | 2.0K | 79 | 113 |
| 445 | Astrocytes | 20 | 2.0K | 89 | 55 |
| 446 | Microscopy | 52 | 2.0K | 129 | 103 |
| 447 | Economic Development | 52 | 1.9K | 204 | 263 |
| 448 | rural health | 105 | 1.9K | 3 | 6 |
| 449 | Parasitology | 61 | 1.9K | 325 | 268 |
| 450 | Plant cells | 16 | 1.9K | 458 | 416 |
| 451 | diseases | 5 | 1.9K | 193 | 198 |
| 452 | air | 27 | 1.9K | 17 | 23 |
| 453 | consumer behavior | 38 | 1.9K | 37 | 49 |
| 454 | histological techniques | 35 | 1.9K | 78 | 66 |
| 455 | Information Science | 69 | 1.9K | 258 | 384 |
| 456 | Experimental Design | 37 | 1.9K | 31 | 32 |
| 457 | Hearing Aids | 79 | 1.9K | 1 | 1 |
| 458 | Hydrometeorology | 32 | 1.9K | 23 | 33 |
| 458 | Depression | 15 | 1.9K | 81 | 53 |
| 460 | Nephrology | 31 | 1.8K | 101 | 82 |
| 461 | Smoking | 47 | 1.8K | 105 | 94 |
| 462 | Petrology | 38 | 1.8K | 260 | 234 |
| 463 | Archaeology | 99 | 1.8K | 115 | 154 |
| 464 | Electrochemistry | 188 | 1.8K | 444 | 837 |
| 465 | Chemical Engineering | 61 | 1.8K | 1,134 | 1,314 |
| 466 | Behavioral Genetics | 30 | 1.8K | 24 | 19 |
| 466 | ethanol | 35 | 1.8K | 48 | 18 |
| 468 | hazard mitigation | 10 | 1.8K | 365 | 40 |
| 469 | Alzheimer's disease | 76 | 1.7K | 187 | 179 |
| 470 | Environmental Law | 35 | 1.7K | 174 | 254 |
| 470 | Composite Materials | 18 | 1.7K | 1,127 | 698 |
| 472 | International Relations | 60 | 1.7K | 127 | 104 |
| 473 | occupational diseases | 44 | 1.7K | 76 | 88 |
| 474 | families | 72 | 1.7K | 54 | 72 |
| 475 | Business | 51 | 1.7K | 376 | 585 |
| 475 | natural disasters | 11 | 1.7K | 556 | 105 |
| 477 | Quantum electronics | 22 | 1.7K | 532 | 175 |
| 478 | Clinical Pharmacology | 42 | 1.7K | 199 | 139 |
| 478 | Dementia | 75 | 1.7K | 173 | 163 |
| 480 | Water quality management | 41 | 1.7K | 270 | 172 |
| 481 | Economic History | 70 | 1.7K | 489 | 450 |
| 482 | economic policy | 75 | 1.6K | 256 | 241 |
| 482 | International Finance | 22 | 1.6K | 521 | 201 |
| 484 | international cooperation | 32 | 1.6K | 74 | 55 |
| 485 | Medical Technology | 52 | 1.6K | 130 | 156 |
| 486 | Energy Policy | 24 | 1.6K | 897 | 672 |
| 487 | Zoology | 35 | 1.6K | 694 | 384 |
| 488 | commerce | 20 | 1.6K | 416 | 240 |
| 489 | Electrophoresis | 50 | 1.6K | 191 | 173 |
| 490 | Radiation | 73 | 1.6K | 219 | 227 |
| 491 | Respiratory system | 42 | 1.6K | 44 | 35 |
| 492 | Geomorphology | 33 | 1.6K | 309 | 272 |
| 493 | heredity | 58 | 1.6K | 31 | 34 |
| 494 | Language Acquisition | 15 | 1.6K | 51 | 1 |
| 495 | Genetic epidemiology | 53 | 1.6K | 22 | 26 |
| 496 | Political Psychology | 34 | 1.6K | 32 | 35 |
| 497 | Histochemistry | 27 | 1.6K | 217 | 80 |
| 498 | Health Services Research | 88 | 1.6K | 143 | 239 |
| 499 | Regional Planning | 67 | 1.6K | 155 | 241 |
| 500 | miniaturization | 26 | 1.5K | 531 | 507 |
| 501 | Paleoclimatology | 26 | 1.5K | 305 | 218 |
| 502 | Pharmacy management | 68 | 1.5K | 5 | 5 |
| 503 | Mathematical Physics | 114 | 1.5K | 382 | 546 |
| 503 | Capital market | 8 | 1.5K | 183 | 17 |
| 505 | energy conservation | 21 | 1.5K | 622 | 512 |
| 506 | War and Society | 25 | 1.5K | 32 | 37 |
| 506 | warfare | 25 | 1.5K | 44 | 45 |
| 506 | Entomology | 54 | 1.5K | 405 | 310 |
| 509 | Lung Transplantation | 43 | 1.5K | 51 | 65 |
| 509 | Heart transplantation | 43 | 1.5K | 51 | 65 |
| 511 | Geriatric Nursing | 116 | 1.5K | 2 | 2 |
| 512 | biological monitoring | 41 | 1.5K | 8 | 17 |
| 513 | Insects | 21 | 1.5K | 421 | 170 |
| 514 | Cytoskeleton | 36 | 1.5K | 16 | 17 |
| 515 | software | 37 | 1.5K | 83 | 82 |
| 516 | Leukemia | 43 | 1.5K | 167 | 256 |
| 517 | Metastasis | 9 | 1.5K | 41 | 24 |
| 518 | Systems Engineering | 25 | 1.4K | 614 | 311 |
| 519 | Hippocampus | 19 | 1.4K | 50 | 44 |
| 520 | Aerosols | 40 | 1.4K | 74 | 73 |
| 521 | Computational Fluid Dynamics | 33 | 1.4K | 75 | 32 |
| 522 | Intellectual disability | 56 | 1.4K | 88 | 115 |
| 523 | Neurogenetics | 71 | 1.4K | 3 | 10 |
| 524 | cell movement | 32 | 1.4K | 13 | 14 |
| 525 | Dynamics | 61 | 1.4K | 139 | 109 |
| 526 | School Psychology | 51 | 1.4K | 50 | 68 |
| 527 | mass transfer | 35 | 1.4K | 410 | 361 |
| 527 | Production Management | 26 | 1.4K | 289 | 358 |
| 529 | Functional Genomics | 34 | 1.4K | 16 | 23 |
| 530 | Enzyme | 15 | 1.4K | 118 | 39 |
| 531 | Communication in medicine | 42 | 1.4K | 66 | 60 |
| 531 | violence | 49 | 1.4K | 119 | 167 |
| 533 | Maternal health services | 42 | 1.4K | 30 | 24 |
| 534 | Counseling Psychology | 49 | 1.4K | 11 | 34 |
| 535 | Family Therapy | 57 | 1.4K | 70 | 63 |
| 535 | Culture | 67 | 1.4K | 96 | 75 |
| 537 | Fracture mechanics | 26 | 1.4K | 431 | 221 |
| 538 | Political Sociology | 27 | 1.4K | 65 | 45 |
| 539 | Erectile dysfunction | 6 | 1.3K | 136 | 11 |
| 540 | Ethnology | 77 | 1.3K | 99 | 106 |
| 541 | Patient education | 50 | 1.3K | 50 | 90 |
| 541 | Hospitals | 80 | 1.3K | 33 | 41 |
| 543 | Bilingualism | 12 | 1.3K | 19 | 1 |
| 544 | educational statistics | 20 | 1.3K | 11 | 12 |
| 545 | Chronic diseases | 33 | 1.3K | 136 | 202 |
| 546 | Clinical Trials | 59 | 1.3K | 40 | 56 |
| 547 | Roads | 80 | 1.3K | 77 | 84 |
| 548 | DNA polymerases | 18 | 1.3K | 92 | 163 |
| 549 | Nonlinear functional analysis | 46 | 1.3K | 103 | 61 |
| 550 | city planning | 50 | 1.3K | 222 | 259 |
| 551 | Antigens | 44 | 1.3K | 79 | 96 |
| 552 | Clinical Biochemistry | 36 | 1.3K | 179 | 175 |
| 553 | Physical fitness | 19 | 1.3K | 316 | 172 |
| 554 | Industrial Safety | 52 | 1.3K | 97 | 127 |
| 555 | Public Policy | 77 | 1.3K | 152 | 314 |
| 556 | Software Engineering | 17 | 1.2K | 351 | 170 |
| 557 | Carbohydrates | 22 | 1.2K | 59 | 50 |
| 558 | Environmental pollutants | 48 | 1.2K | 318 | 458 |
| 559 | cardiac catheterization | 49 | 1.2K | 75 | 62 |
| 560 | Employee selection | 15 | 1.2K | 18 | 8 |
| 561 | Plants | 16 | 1.2K | 849 | 605 |
| 562 | Systems Biology | 32 | 1.2K | 311 | 260 |
| 563 | language therapy | 31 | 1.2K | 8 | 6 |
| 564 | Solitons | 26 | 1.2K | 199 | 95 |
| 564 | Fractals | 27 | 1.2K | 189 | 96 |
| 564 | Chaos | 26 | 1.2K | 199 | 95 |
| 567 | Veterinary Immunology | 29 | 1.2K | 54 | 39 |
| 568 | Geriatric Psychiatry | 35 | 1.2K | 128 | 125 |
| 569 | Crystal growth | 47 | 1.2K | 88 | 144 |
| 569 | computer networks | 13 | 1.2K | 1,185 | 529 |
| 571 | Electrophysiology | 73 | 1.2K | 75 | 126 |
| 572 | drug resistance | 31 | 1.2K | 53 | 65 |
| 573 | Tropical Medicine | 36 | 1.2K | 309 | 224 |
| 574 | Fluid Dynamics | 41 | 1.2K | 185 | 192 |
| 575 | Paleoecology | 29 | 1.1K | 263 | 239 |
| 576 | Antibodies | 35 | 1.1K | 58 | 69 |
| 577 | Educational measurement | 74 | 1.1K | 1 | 9 |
| 578 | Public Administration | 22 | 1.1K | 422 | 236 |
| 579 | Industrial Microbiology | 31 | 1.1K | 411 | 516 |
| 579 | health behavior | 58 | 1.1K | 116 | 168 |
| 579 | Quality of life | 40 | 1.1K | 184 | 280 |
| 582 | Quantitative Research | 30 | 1.1K | 22 | 37 |
| 583 | Waste management | 22 | 1.1K | 346 | 141 |
| 584 | cloning | 19 | 1.1K | 134 | 172 |
| 585 | glycoproteins | 20 | 1.1K | 87 | 58 |
| 585 | Glycoconjugates | 20 | 1.1K | 87 | 58 |
| 585 | glycolipids | 20 | 1.1K | 87 | 58 |
| 588 | Meteorites | 20 | 1.1K | 345 | 365 |
| 589 | mathematical concepts | 23 | 1.1K | 50 | 10 |
| 590 | Information Technology | 41 | 1.1K | 377 | 548 |
| 591 | atmosphere | 34 | 1.1K | 92 | 90 |
| 591 | plant molecular biology | 11 | 1.1K | 743 | 567 |
| 593 | Water Purification | 16 | 1.1K | 366 | 112 |
| 594 | Paleogeography | 24 | 1.1K | 268 | 223 |
| 594 | Oligosaccharide | 17 | 1.1K | 51 | 42 |
| 596 | Marine Engineering | 37 | 1.1K | 46 | 7 |
| 597 | Second Language Acquisition | 33 | 1.1K | 4 | 26 |
| 598 | Population | 10 | 1.1K | 419 | 147 |
| 599 | Operator theory | 68 | 1.1K | 5 | 6 |
| 600 | Exercise | 37 | 1.1K | 260 | 255 |
| 601 | Long-Term Care | 36 | 1.1K | 61 | 116 |
| 601 | Social problems | 14 | 1.1K | 211 | 132 |
| 603 | Phonetics | 26 | 1.0K | 52 | 41 |
| 604 | plant communities | 16 | 1.0K | 423 | 371 |
| 605 | Parasites | 27 | 1.0K | 374 | 270 |
| 606 | Industrial Engineering | 50 | 1.0K | 291 | 423 |
| 607 | child behavior | 32 | 1.0K | 40 | 74 |
| 607 | tomography | 46 | 1.0K | 21 | 28 |
| 609 | Geometry | 101 | 1.0K | 50 | 79 |
| 610 | Carcinogenesis | 26 | 1.0K | 190 | 215 |
| 611 | drug abuse | 38 | 1.0K | 78 | 78 |
| 612 | Pediatric Nursing | 91 | 1.0K | 7 | 34 |
| 613 | Bones | 18 | 1.0K | 226 | 212 |
| 614 | Physical Geography | 38 | 1.0K | 25 | 44 |
| 615 | atmospheric models | 16 | 998 | 243 | 201 |
| 616 | Photography | 245 | 994 | 106 | 87 |
| 617 | Psychiatric hospitals | 30 | 984 | 54 | 52 |
| 617 | drug evaluation | 58 | 984 | 66 | 174 |
| 619 | educational planning | 35 | 981 | 22 | 47 |
| 620 | Mathematical Economics | 16 | 977 | 77 | 101 |
| 621 | Microelectronics | 25 | 972 | 564 | 596 |
| 621 | Nutrition physiology | 17 | 972 | 201 | 150 |
| 623 | Artificial Organs | 41 | 970 | 65 | 58 |
| 624 | Developmental Immunology | 19 | 960 | 108 | 88 |
| 625 | Radio | 33 | 958 | 388 | 451 |
| 626 | Bipolar Disorder | 27 | 956 | 59 | 90 |
| 627 | Inflammation | 25 | 953 | 226 | 291 |
| 628 | Molecular Pharmacology | 44 | 947 | 87 | 216 |
| 629 | Fungi | 13 | 941 | 419 | 314 |
| 630 | pain management | 27 | 938 | 96 | 79 |
| 631 | Forecasting | 33 | 936 | 29 | 78 |
| 632 | Building Materials | 16 | 933 | 781 | 685 |
| 633 | Steroids | 36 | 932 | 149 | 178 |
| 634 | at-risk youth | 14 | 929 | 23 | 13 |
| 635 | Philosophy | 119 | 927 | 171 | 208 |
| 636 | RNA | 8 | 900 | 277 | 123 |
| 637 | psychophysics | 45 | 899 | 11 | 24 |
| 638 | vitamin C | 14 | 897 | 58 | 39 |
| 638 | vitamin E | 14 | 897 | 58 | 39 |
| 640 | Evidence-Based Medicine | 27 | 896 | 98 | 67 |
| 641 | Soil Science | 16 | 895 | 740 | 542 |
| 642 | occupational health and safety | 31 | 890 | 20 | 14 |
| 642 | Politics | 19 | 890 | 140 | 95 |
| 642 | visualization | 82 | 890 | 132 | 180 |
| 642 | government | 19 | 890 | 169 | 120 |
| 646 | Combustion | 24 | 889 | 354 | 310 |
| 647 | Pharmacokinetics | 28 | 886 | 108 | 144 |
| 648 | Human Geography | 34 | 883 | 235 | 232 |
| 649 | Career development | 39 | 882 | 14 | 18 |
| 650 | family violence | 22 | 880 | 70 | 73 |
| 651 | international trade | 13 | 879 | 200 | 100 |
| 652 | Nanostructures | 11 | 876 | 1,009 | 621 |
| 653 | Intelligence | 21 | 875 | 40 | 53 |
| 654 | Long-term care facilities | 31 | 874 | 70 | 133 |
| 655 | Post-traumatic stress disorder | 25 | 867 | 171 | 205 |
| 656 | Photochemistry | 23 | 866 | 466 | 392 |
| 656 | children | 25 | 866 | 66 | 104 |
| 658 | Obstetric Nursing | 82 | 865 | 7 | 24 |
| 658 | Forensic Psychiatry | 22 | 865 | 125 | 69 |
| 660 | sports injuries | 34 | 859 | 42 | 33 |
| 661 | elder abuse | 35 | 858 | 12 | 24 |
| 661 | primary prevention | 20 | 858 | 74 | 34 |
| 663 | Neonatology | 28 | 855 | 62 | 74 |
| 664 | Stochastic Processes | 33 | 853 | 97 | 71 |
| 665 | Agricultural Chemistry | 32 | 847 | 536 | 668 |
| 666 | prostaglandins | 28 | 846 | 52 | 61 |
| 667 | Social welfare | 29 | 845 | 95 | 72 |
| 668 | Forensic Psychology | 20 | 842 | 66 | 34 |
| 669 | Telecommunication Systems | 10 | 832 | 874 | 235 |
| 669 | Mass Media | 58 | 832 | 41 | 47 |
| 671 | Civil Engineering | 185 | 822 | 41 | 153 |
| 671 | Plate Tectonics | 13 | 822 | 68 | 22 |
| 673 | Neural circuitry | 22 | 819 | 613 | 575 |
| 674 | Control Theory | 36 | 817 | 434 | 436 |
| 675 | Differential Equations | 37 | 813 | 168 | 170 |
| 676 | Phylogeny | 16 | 811 | 270 | 255 |
| 677 | Plant physiology | 15 | 807 | 949 | 840 |
| 678 | Light | 20 | 806 | 269 | 470 |
| 679 | Human-Computer Interaction | 29 | 805 | 269 | 335 |
| 680 | mutation | 11 | 804 | 201 | 126 |
| 681 | Information Systems | 49 | 801 | 106 | 270 |
| 682 | Geographic information systems | 49 | 798 | 75 | 119 |
| 683 | Developing countries | 34 | 794 | 472 | 576 |
| 684 | Zeolites | 19 | 792 | 249 | 237 |
| 684 | recreation | 166 | 792 | 4 | 90 |
| 686 | Reading | 37 | 786 | 76 | 125 |
| 686 | motor skills | 22 | 786 | 24 | 24 |
| 688 | ecosystem | 8 | 785 | 764 | 474 |
| 689 | Medical Ethics | 56 | 783 | 128 | 149 |
| 689 | disabilities | 24 | 783 | 136 | 111 |
| 691 | Malaria | 11 | 777 | 273 | 136 |
| 692 | chronic disease | 30 | 774 | 39 | 58 |
| 693 | soil management | 4 | 773 | 457 | 138 |
| 694 | pollutants | 26 | 770 | 449 | 584 |
| 694 | planning | 24 | 770 | 101 | 77 |
| 696 | Palliative Care | 46 | 768 | 94 | 137 |
| 697 | Radiotherapy | 46 | 765 | 38 | 36 |
| 698 | pharmaceutical industry | 44 | 757 | 18 | 42 |
| 699 | Endocrine glands | 8 | 756 | 103 | 104 |
| 700 | Hemostasis | 34 | 754 | 100 | 127 |
| 701 | Telecommunications | 14 | 752 | 203 | 55 |
| 701 | Energy Consumption | 11 | 752 | 116 | 112 |
| 703 | Risk | 16 | 751 | 142 | 140 |
| 704 | Neurotoxicology | 24 | 748 | 62 | 93 |
| 705 | collagen | 16 | 743 | 42 | 84 |
| 706 | Genetic Counseling | 30 | 739 | 35 | 25 |
| 707 | DNA methylation | 19 | 737 | 27 | 47 |
| 708 | tillage | 3 | 736 | 400 | 116 |
| 709 | Broadcasting | 16 | 732 | 25 | 21 |
| 710 | Biogeochemical cycles | 1 | 726 | 604 | 223 |
| 711 | complementary therapies | 39 | 718 | 186 | 301 |
| 712 | air quality management | 18 | 716 | 65 | 76 |
| 712 | Bioethics | 29 | 716 | 186 | 122 |
| 714 | Cosmochemistry | 32 | 707 | 143 | 274 |
| 715 | Cost control | 27 | 706 | 13 | 7 |
| 716 | Autism | 15 | 704 | 232 | 221 |
| 717 | Hemophilia | 33 | 703 | 62 | 70 |
| 718 | Algae | 18 | 702 | 244 | 230 |
| 718 | Seaweed | 18 | 702 | 159 | 167 |
| 720 | Multiphase Flow | 17 | 700 | 90 | 86 |
| 721 | Business Ethics | 13 | 693 | 393 | 512 |
| 722 | Adolescent Psychology | 26 | 692 | 181 | 270 |
| 723 | Andrology | 17 | 690 | 155 | 109 |
| 724 | Molecular Spectroscopy | 34 | 689 | 368 | 439 |
| 725 | Socialization | 15 | 688 | 168 | 173 |
| 726 | indoor air pollution | 17 | 687 | 72 | 80 |
| 726 | Ventilation | 17 | 687 | 120 | 96 |
| 726 | Sick building syndrome | 17 | 687 | 72 | 80 |
| 729 | adolescence | 23 | 685 | 241 | 313 |
| 730 | Leadership | 9 | 682 | 217 | 191 |
| 730 | Chromosomes | 17 | 682 | 265 | 262 |
| 732 | Australia | 26 | 675 | 415 | 357 |
| 733 | Intelligent Transportation Systems | 10 | 673 | 549 | 394 |
| 733 | Agricultural Ecology | 18 | 673 | 299 | 406 |
| 735 | sexual behavior | 16 | 672 | 203 | 172 |
| 736 | conflict management | 14 | 671 | 64 | 57 |
| 737 | disease outbreaks | 7 | 668 | 294 | 139 |
| 737 | Epidemics | 7 | 668 | 277 | 138 |
| 739 | Computer Science | 34 | 666 | 362 | 348 |
| 740 | Robotics | 22 | 665 | 556 | 508 |
| 741 | Nanoparticles | 9 | 663 | 1,075 | 668 |
| 742 | Suicide | 22 | 656 | 101 | 108 |
| 743 | Communication Disorders | 15 | 655 | 65 | 35 |
| 744 | economic forecasting | 23 | 653 | 21 | 78 |
| 744 | Wireless Communication Systems | 25 | 653 | 815 | 754 |
| 746 | Environmental Management | 16 | 651 | 1,265 | 1,373 |
| 747 | disease vectors | 20 | 647 | 234 | 228 |
| 748 | role | 12 | 646 | 159 | 132 |
| 749 | women | 39 | 644 | 67 | 67 |
| 750 | Financial management | 16 | 642 | 106 | 143 |
| 751 | Chemical analysis | 18 | 641 | 312 | 281 |
| 752 | Insect biochemistry | 13 | 639 | 146 | 119 |
| 753 | Psychiatric Epidemiology | 10 | 638 | 185 | 137 |
| 754 | Risk Management | 14 | 636 | 188 | 134 |
| 755 | Proteome | 16 | 635 | 409 | 440 |
| 756 | Biogeography | 9 | 634 | 551 | 490 |
| 757 | Higher Education | 37 | 633 | 51 | 93 |
| 758 | Parenteral nutrition | 36 | 631 | 163 | 360 |
| 759 | Cosmology | 8 | 625 | 365 | 193 |
| 759 | Radioisotopes | 31 | 625 | 177 | 150 |
| 761 | breastfeeding | 16 | 622 | 103 | 72 |
| 762 | dietary supplements | 4 | 618 | 723 | 172 |
| 763 | Brain damage | 19 | 617 | 70 | 84 |
| 764 | Marriage | 30 | 611 | 65 | 103 |
| 765 | Asia | 31 | 608 | 613 | 548 |
| 766 | Animal ecology | 8 | 607 | 714 | 419 |
| 766 | Group decision making | 13 | 607 | 145 | 93 |
| 768 | Autoimmunity | 12 | 598 | 287 | 286 |
| 768 | Sun | 21 | 598 | 111 | 118 |
| 768 | Biodiversity | 16 | 598 | 858 | 815 |
| 771 | Oceanography | 16 | 595 | 746 | 676 |
| 772 | nuclear astrophysics | 6 | 594 | 338 | 154 |
| 772 | cell interaction | 24 | 594 | 227 | 372 |
| 774 | Carbon | 2 | 593 | 1,444 | 665 |
| 775 | Cultural diversity | 16 | 591 | 33 | 41 |
| 776 | Atomic spectroscopy | 29 | 588 | 256 | 305 |
| 777 | Psychiatric Nursing | 43 | 586 | 42 | 81 |
| 777 | Liposomes | 23 | 586 | 86 | 167 |
| 777 | Lipid bilayers | 23 | 586 | 70 | 154 |
| 780 | Structural Engineering | 22 | 581 | 565 | 562 |
| 780 | hospice care | 27 | 581 | 58 | 61 |
| 782 | Plant Ecology | 14 | 580 | 777 | 784 |
| 783 | Communication and Culture | 33 | 578 | 9 | 16 |
| 783 | questioning | 113 | 578 | 1 | 2 |
| 785 | Public Choice | 11 | 575 | 130 | 75 |
| 786 | scientific societies | 16 | 572 | 204 | 169 |
| 787 | Microcirculation | 22 | 570 | 66 | 105 |
| 788 | Welfare Economics | 6 | 568 | 290 | 120 |
| 789 | Labor Economics | 19 | 567 | 88 | 121 |
| 789 | ethnicity | 23 | 567 | 132 | 74 |
| 791 | Sound | 39 | 566 | 163 | 230 |
| 792 | Social Choice Theory | 5 | 565 | 169 | 19 |
| 793 | health services accessibility | 26 | 564 | 198 | 239 |
| 793 | Cardiac electrophysiology | 14 | 564 | 86 | 94 |
| 793 | arrhythmia | 14 | 564 | 86 | 94 |
| 796 | health planning | 48 | 563 | 310 | 581 |
| 797 | Law | 49 | 562 | 172 | 180 |
| 798 | Quantum Optics | 25 | 561 | 201 | 206 |
| 798 | Laser Spectroscopy | 25 | 561 | 160 | 179 |
| 800 | Neuroendocrinology | 3 | 560 | 108 | 69 |
| 800 | Crystallography | 41 | 560 | 342 | 316 |
| 802 | Extracellular matrix | 11 | 557 | 73 | 107 |
| 803 | Environmental Microbiology | 12 | 554 | 588 | 646 |
| 803 | Land use | 16 | 554 | 354 | 364 |
| 805 | Scandinavia | 7 | 550 | 324 | 128 |
| 806 | Alternative Medicine | 16 | 548 | 456 | 384 |
| 806 | cytokines | 12 | 548 | 475 | 439 |
| 806 | Relationships | 11 | 548 | 35 | 42 |
| 809 | Parkinson's disease | 11 | 545 | 67 | 45 |
| 809 | Cytokine | 10 | 545 | 122 | 132 |
| 811 | Humanities | 31 | 544 | 249 | 229 |
| 812 | Genes | 28 | 542 | 205 | 298 |
| 813 | lasers | 27 | 539 | 640 | 637 |
| 814 | Adult Education | 34 | 536 | 71 | 62 |
| 814 | Sedimentology | 13 | 536 | 197 | 204 |
| 816 | radiative transfer | 22 | 533 | 160 | 151 |
| 817 | technical education | 39 | 531 | 35 | 89 |
| 818 | Yeast | 8 | 528 | 198 | 131 |
| 819 | Youth | 19 | 525 | 190 | 271 |
| 820 | movement | 4 | 524 | 267 | 73 |
| 821 | traffic safety | 33 | 522 | 15 | 28 |
| 822 | Sales management | 8 | 521 | 106 | 165 |
| 822 | selling | 8 | 521 | 106 | 165 |
| 824 | Auditing | 14 | 520 | 82 | 111 |
| 824 | Combinatorial analysis | 33 | 520 | 198 | 175 |
| 826 | Demography | 18 | 515 | 172 | 214 |
| 827 | Neurotransmitters | 17 | 514 | 67 | 126 |
| 828 | Geriatric Pharmacology | 13 | 504 | 65 | 54 |
| 828 | Pituitary gland | 6 | 504 | 97 | 42 |
| 830 | Androgens | 10 | 503 | 80 | 67 |
| 831 | Information Retrieval | 7 | 501 | 239 | 155 |
| 831 | Educational Technology | 41 | 501 | 197 | 520 |
| 833 | carcinogens | 13 | 499 | 341 | 386 |
| 833 | Leisure | 20 | 499 | 57 | 88 |
| 835 | calcification | 9 | 498 | 239 | 197 |
| 835 | cultural pluralism | 14 | 498 | 78 | 41 |
| 837 | Occupational exposure | 16 | 497 | 14 | 5 |
| 838 | Safety management | 16 | 496 | 87 | 50 |
| 839 | Probability | 11 | 493 | 242 | 180 |
| 840 | Marriage counseling | 23 | 492 | 41 | 82 |
| 841 | Continuing Education | 77 | 489 | 9 | 32 |
| 842 | Randomized Controlled Trials | 18 | 488 | 302 | 206 |
| 843 | International security | 11 | 483 | 79 | 97 |
| 844 | Applied Linguistics | 20 | 482 | 123 | 120 |
| 844 | Biodiversity conservation | 10 | 482 | 818 | 976 |
| 844 | Geriatric Oncology | 12 | 482 | 183 | 183 |
| 847 | Heart Failure | 12 | 480 | 150 | 191 |
| 848 | Biomass Energy | 9 | 473 | 1,423 | 1,311 |
| 849 | Juvenile delinquency | 34 | 469 | 36 | 84 |
| 850 | machinery | 11 | 468 | 333 | 170 |
| 851 | Computational Chemistry | 8 | 467 | 378 | 262 |
| 851 | bioclimatology | 24 | 467 | 123 | 238 |
| 853 | Religion | 130 | 465 | 19 | 75 |
| 854 | Electronic Packaging | 11 | 464 | 69 | 41 |
| 854 | Chromatographic analysis | 20 | 464 | 618 | 552 |
| 856 | Quality Assurance | 11 | 462 | 83 | 27 |
| 856 | X-rays | 58 | 462 | 15 | 65 |
| 858 | Quantum theory | 9 | 460 | 601 | 320 |
| 859 | Blood vessels | 18 | 458 | 44 | 78 |
| 860 | DNA repair | 8 | 457 | 109 | 87 |
| 861 | homosexuality | 24 | 453 | 44 | 96 |
| 861 | drug toxicity | 18 | 453 | 43 | 83 |
| 863 | Food | 27 | 451 | 968 | 1,519 |
| 864 | Culture techniques | 16 | 448 | 71 | 62 |
| 865 | Social Networks | 11 | 447 | 73 | 83 |
| 865 | Menopause | 16 | 447 | 65 | 73 |
| 867 | embryonic development | 11 | 444 | 146 | 119 |
| 868 | Wildlife conservation | 6 | 442 | 758 | 584 |
| 869 | Structuralism | 10 | 440 | 48 | 76 |
| 870 | Climate change | 8 | 439 | 548 | 835 |
| 871 | Jurisprudence | 18 | 437 | 297 | 271 |
| 872 | Cochlear Implants | 12 | 436 | 13 | 4 |
| 873 | Mobile Computing | 11 | 435 | 504 | 383 |
| 873 | aerosol | 16 | 435 | 106 | 121 |
| 875 | Chemical Ecology | 11 | 434 | 207 | 210 |
| 875 | pheromones | 11 | 434 | 176 | 197 |
| 877 | Nuclear Engineering | 37 | 433 | 351 | 387 |
| 878 | Aggression | 20 | 432 | 101 | 208 |
| 879 | civilization | 71 | 431 | 66 | 45 |
| 880 | Groundwater | 23 | 429 | 120 | 195 |
| 880 | China | 41 | 429 | 579 | 998 |
| 882 | Atmospheric Science | 8 | 428 | 85 | 39 |
| 882 | DNA | 15 | 428 | 127 | 121 |
| 884 | Advertising | 4 | 424 | 253 | 118 |
| 885 | Gender Studies | 15 | 423 | 113 | 121 |
| 886 | Voice Disorders | 10 | 422 | 10 | 5 |
| 887 | Autoimmune diseases | 12 | 421 | 215 | 265 |
| 887 | school psychologists | 22 | 421 | 35 | 101 |
| 889 | Nuclear Chemistry | 26 | 420 | 260 | 277 |
| 890 | Stress | 10 | 418 | 65 | 54 |
| 891 | Plastics | 13 | 417 | 774 | 575 |
| 892 | Solar Energy | 17 | 416 | 586 | 877 |
| 892 | Genetic disorders | 6 | 416 | 276 | 159 |
| 894 | internet | 13 | 414 | 663 | 673 |
| 895 | Genetic Toxicology | 1 | 413 | 755 | 165 |
| 896 | Solid State Chemistry | 21 | 410 | 1,064 | 1,056 |
| 897 | Quantum Computing | 3 | 409 | 182 | 62 |
| 898 | Harmonic Analysis | 5 | 405 | 102 | 52 |
| 898 | cell membrane | 13 | 405 | 243 | 315 |
| 898 | vitamins | 4 | 405 | 83 | 32 |
| 901 | Microeconomics | 8 | 404 | 155 | 117 |
| 901 | feeding behavior | 22 | 404 | 179 | 338 |
| 903 | Infection control | 22 | 399 | 21 | 76 |
| 904 | epilepsy | 29 | 398 | 160 | 314 |
| 904 | Eutrophication | 6 | 398 | 614 | 867 |
| 906 | Queer Studies | 12 | 396 | 56 | 66 |
| 906 | Sexual health | 17 | 396 | 190 | 210 |
| 908 | Logistics | 12 | 393 | 177 | 250 |
| 908 | consumers | 11 | 393 | 106 | 128 |
| 910 | Sociolinguistics | 13 | 391 | 139 | 128 |
| 910 | Algorithms | 26 | 391 | 82 | 155 |
| 912 | Criminal Law | 13 | 389 | 77 | 71 |
| 912 | Industrial Policy | 9 | 389 | 227 | 187 |
| 914 | locomotion | 14 | 388 | 191 | 251 |
| 914 | posture | 14 | 388 | 191 | 251 |
| 914 | gait | 14 | 388 | 191 | 251 |
| 914 | walking | 14 | 388 | 191 | 251 |
| 918 | Synapses | 7 | 386 | 128 | 97 |
| 919 | Industrial Organization | 7 | 384 | 173 | 105 |
| 919 | Cross-Cultural Studies | 9 | 384 | 294 | 182 |
| 921 | Music Therapy | 30 | 382 | 16 | 27 |
| 921 | nuclear magnetic resonance | 27 | 382 | 300 | 386 |
| 921 | Mechanics | 18 | 382 | 429 | 403 |
| 924 | Geomagnetism | 10 | 381 | 321 | 284 |
| 925 | ethnic groups | 4 | 380 | 270 | 91 |
| 926 | sex differences | 8 | 379 | 19 | 31 |
| 927 | health and race | 3 | 378 | 179 | 37 |
| 928 | Social Stratification | 8 | 375 | 30 | 19 |
| 928 | Social mobility | 8 | 375 | 30 | 19 |
| 928 | social conflict | 9 | 375 | 66 | 27 |
| 928 | social status | 8 | 375 | 30 | 19 |
| 928 | Occupational mobility | 8 | 375 | 30 | 19 |
| 933 | Evolutionary Genetics | 13 | 373 | 142 | 177 |
| 933 | Tissue Engineering | 5 | 373 | 242 | 121 |
| 933 | Molecular Epidemiology | 13 | 373 | 142 | 177 |
| 936 | Africa | 24 | 372 | 366 | 355 |
| 936 | world | 10 | 372 | 313 | 439 |
| 938 | Histocompatibility Testing | 28 | 370 | 41 | 125 |
| 939 | Organ transplantation | 31 | 368 | 53 | 73 |
| 939 | Osteoporosis | 7 | 368 | 146 | 87 |
| 941 | Biogeochemistry | 6 | 366 | 736 | 644 |
| 941 | Pregnancy | 17 | 366 | 217 | 268 |
| 941 | Zoonoses | 9 | 366 | 83 | 79 |
| 944 | Plant Morphology | 3 | 365 | 607 | 141 |
| 945 | mammals | 24 | 364 | 235 | 361 |
| 946 | individual differences | 10 | 361 | 90 | 131 |
| 947 | Chromatography | 16 | 359 | 605 | 598 |
| 948 | Marine Biology | 8 | 357 | 1,551 | 1,290 |
| 949 | DNS | 11 | 356 | 149 | 135 |
| 949 | sadness | 11 | 356 | 35 | 21 |
| 949 | clay | 7 | 356 | 470 | 424 |
| 949 | clay minerals | 7 | 356 | 127 | 111 |
| 949 | industrial relations | 33 | 356 | 156 | 281 |
| 949 | death | 12 | 356 | 48 | 32 |
| 949 | antisocial personality disorder | 11 | 356 | 35 | 21 |
| 956 | Public Health Administration | 27 | 355 | 102 | 114 |
| 956 | Finite Element Method | 8 | 355 | 137 | 66 |
| 958 | Pancreatic diseases | 19 | 351 | 67 | 108 |
| 959 | Simulation Methods | 17 | 349 | 222 | 246 |
| 960 | Early Childhood Education | 16 | 347 | 187 | 181 |
| 960 | X-ray crystallography | 12 | 347 | 226 | 137 |
| 960 | Nuclear family | 14 | 347 | 30 | 10 |
| 963 | Developmental Neurobiology | 15 | 346 | 121 | 152 |
| 963 | rare diseases | 13 | 346 | 215 | 248 |
| 965 | Public opinion | 17 | 345 | 85 | 169 |
| 965 | Nonprofit organizations | 11 | 345 | 94 | 102 |
| 967 | Coral reef biology | 11 | 343 | 121 | 152 |
| 968 | Urban Geography | 7 | 340 | 124 | 72 |
| 968 | Bioinorganic chemistry | 23 | 340 | 462 | 673 |
| 970 | Structural dynamics | 13 | 339 | 426 | 573 |
| 971 | Geodynamics | 5 | 338 | 688 | 500 |
| 972 | Political Geography | 13 | 336 | 84 | 110 |
| 973 | Diagnosis | 36 | 335 | 30 | 93 |
| 974 | risk factors | 18 | 333 | 191 | 302 |
| 974 | Sites | 10 | 333 | 253 | 308 |
| 974 | Development | 9 | 333 | 371 | 431 |
| 974 | Economic Assistance | 9 | 333 | 322 | 405 |
| 978 | Political Parties | 8 | 331 | 90 | 71 |
| 979 | gastrointestinal tract | 5 | 327 | 212 | 221 |
| 980 | weather forecasting | 9 | 326 | 79 | 82 |
| 981 | Food additives | 14 | 324 | 400 | 621 |
| 982 | Neuropharmacology | 7 | 323 | 336 | 265 |
| 983 | Documentation | 8 | 317 | 113 | 105 |
| 984 | Computer Engineering | 13 | 315 | 282 | 246 |
| 985 | Primates | 6 | 314 | 473 | 282 |
| 986 | environmental remediation | 13 | 313 | 40 | 73 |
| 987 | Data Mining | 14 | 312 | 302 | 468 |
| 987 | Securities | 6 | 312 | 142 | 111 |
| 987 | eugenics | 25 | 312 | 78 | 199 |
| 990 | Oral communication | 28 | 311 | 37 | 133 |
| 990 | Student Health Services | 16 | 311 | 74 | 99 |
| 990 | Endocrine system | 44 | 311 | 70 | 77 |
| 993 | Acoustics | 22 | 310 | 63 | 109 |
| 994 | extraterrestrial environment | 27 | 309 | 84 | 155 |
| 995 | Intercultural Communication | 9 | 308 | 155 | 146 |
| 996 | Autoantibodies | 8 | 306 | 272 | 299 |
| 997 | Sarcopenia | 5 | 305 | 247 | 252 |
| 998 | optical instruments | 29 | 304 | 52 | 147 |
| 999 | Small Business | 5 | 302 | 571 | 635 |
| 1000 | foreign exchange | 6 | 301 | 197 | 175 |