| 1 | Science | 3,224 | 315.4K | 63 | 67 |
| 2 | Biology | 3,007 | 302.9K | 69 | 72 |
| 3 | Physics | 2,966 | 286.9K | 117 | 93 |
| 4 | Medicine | 3,969 | 253.4K | 43 | 48 |
| 5 | Neurology | 2,824 | 214.1K | 32 | 33 |
| 6 | Chemistry | 4,320 | 189.5K | 39 | 89 |
| 7 | Molecular Biology | 2,763 | 170.7K | 37 | 58 |
| 8 | Biochemistry | 3,027 | 146.9K | 74 | 80 |
| 9 | Natural history | 320 | 137.9K | 156 | 78 |
| 10 | Research | 2,955 | 124.7K | 29 | 33 |
| 11 | Human genetics | 554 | 122.8K | 30 | 38 |
| 12 | Cytology | 876 | 104.5K | 78 | 62 |
| 13 | Cell Biology | 739 | 97.5K | 83 | 64 |
| 14 | Psychiatry | 1,356 | 82.7K | 33 | 34 |
| 15 | Virology | 456 | 72.4K | 84 | 60 |
| 16 | Immunology | 1,025 | 72.3K | 27 | 33 |
| 17 | Hematology | 1,064 | 64.9K | 31 | 23 |
| 18 | Microbiology | 1,105 | 63.4K | 106 | 132 |
| 19 | Medical genetics | 771 | 60.7K | 27 | 32 |
| 20 | Nuclear Physics | 1,263 | 56.1K | 161 | 145 |
| 21 | Neurophysiology | 745 | 54.2K | 42 | 43 |
| 22 | Metabolism | 614 | 52.8K | 41 | 25 |
| 23 | Genetics | 448 | 49.2K | 119 | 82 |
| 24 | Biophysics | 1,211 | 48.6K | 60 | 58 |
| 25 | Hypertension | 501 | 42.4K | 27 | 31 |
| 26 | Immunity | 294 | 42.0K | 46 | 50 |
| 27 | Cardiovascular system | 396 | 40.0K | 42 | 42 |
| 28 | Psychophysiology | 678 | 39.9K | 47 | 52 |
| 29 | Mental Disorders | 570 | 38.5K | 43 | 38 |
| 30 | Surgery | 182 | 38.2K | 95 | 64 |
| 31 | Astrophysics | 477 | 37.9K | 287 | 283 |
| 32 | Cancer | 730 | 35.4K | 44 | 69 |
| 33 | Pharmacology | 881 | 35.1K | 101 | 86 |
| 34 | Endocrinology | 516 | 34.8K | 95 | 90 |
| 35 | Allergy | 419 | 33.9K | 6 | 17 |
| 36 | nucleic acids | 199 | 33.3K | 61 | 29 |
| 37 | Ecology | 519 | 32.7K | 277 | 268 |
| 38 | Environment | 373 | 31.9K | 201 | 161 |
| 39 | Physiology | 678 | 31.8K | 89 | 90 |
| 40 | Biotechnology | 421 | 31.5K | 195 | 158 |
| 41 | Nutrition | 627 | 31.4K | 39 | 41 |
| 42 | Public Health | 943 | 31.0K | 75 | 128 |
| 43 | Psychology | 668 | 28.8K | 129 | 135 |
| 44 | Materials | 422 | 28.7K | 408 | 252 |
| 45 | arthritis | 815 | 28.3K | 2 | 10 |
| 46 | Metabolic diseases | 385 | 28.2K | 61 | 71 |
| 47 | Leukemia | 304 | 27.7K | 6 | 6 |
| 48 | Mental illness | 390 | 26.8K | 33 | 29 |
| 49 | Statistical physics | 759 | 26.2K | 61 | 64 |
| 50 | Nervous system | 400 | 26.2K | 35 | 52 |
| 51 | Nanotechnology | 377 | 26.2K | 290 | 217 |
| 52 | Neurobiology | 246 | 26.0K | 57 | 34 |
| 53 | Economics | 616 | 25.7K | 64 | 82 |
| 54 | Bioengineering | 320 | 24.4K | 138 | 132 |
| 55 | Pollution | 223 | 24.1K | 427 | 207 |
| 56 | Astronomy | 351 | 23.8K | 298 | 288 |
| 57 | Spectrum analysis | 396 | 23.8K | 261 | 259 |
| 58 | Pathology | 505 | 23.4K | 17 | 31 |
| 59 | Transplantation | 381 | 22.3K | 18 | 17 |
| 60 | Environmental Health | 309 | 22.0K | 240 | 170 |
| 61 | Biocompatible Materials | 391 | 21.7K | 142 | 152 |
| 62 | Oncology | 189 | 20.8K | 94 | 55 |
| 63 | Condensed Matter | 580 | 20.3K | 180 | 194 |
| 64 | Brain | 437 | 19.9K | 61 | 85 |
| 65 | Mathematical Physics | 382 | 19.6K | 72 | 38 |
| 66 | Toxicology | 468 | 19.2K | 91 | 78 |
| 67 | Quantum Gravity | 403 | 18.8K | 154 | 151 |
| 68 | Critical Care | 283 | 18.6K | 30 | 48 |
| 69 | Biomedical Engineering | 511 | 18.5K | 106 | 119 |
| 70 | Solid State Physics | 611 | 18.5K | 186 | 200 |
| 71 | Critical Care Medicine | 282 | 18.4K | 33 | 50 |
| 72 | Parenteral nutrition | 111 | 18.2K | 22 | 9 |
| 73 | Nonlinear Dynamics | 440 | 18.0K | 27 | 26 |
| 74 | Psychopharmacology | 232 | 18.0K | 41 | 41 |
| 75 | Immunotherapy | 159 | 18.0K | 68 | 32 |
| 76 | Epidemiology | 430 | 18.0K | 82 | 106 |
| 77 | Immune system | 110 | 17.8K | 42 | 48 |
| 78 | Enteral nutrition | 93 | 17.7K | 15 | 8 |
| 79 | Rheumatology | 250 | 17.6K | 13 | 14 |
| 80 | Computational Biology | 338 | 17.3K | 25 | 74 |
| 81 | Liver diseases | 171 | 17.0K | 62 | 50 |
| 82 | Polymers | 484 | 16.6K | 204 | 203 |
| 83 | drugs | 241 | 16.5K | 36 | 1 |
| 84 | Biochemical Engineering | 83 | 16.3K | 492 | 178 |
| 85 | personality | 190 | 15.9K | 57 | 50 |
| 86 | Pediatric Neurology | 147 | 15.6K | 25 | 37 |
| 87 | Pharmaceutical Chemistry | 328 | 15.5K | 130 | 110 |
| 88 | Biodiversity conservation | 110 | 15.5K | 113 | 72 |
| 89 | Clinical Chemistry | 335 | 15.4K | 51 | 46 |
| 90 | Neurons | 86 | 15.3K | 52 | 66 |
| 91 | drug therapy | 312 | 15.1K | 54 | 30 |
| 92 | Botany | 322 | 15.0K | 227 | 248 |
| 93 | Cognitive neuroscience | 221 | 14.8K | 22 | 35 |
| 94 | United States | 195 | 14.8K | 415 | 210 |
| 95 | Diabetes | 267 | 14.6K | 66 | 88 |
| 96 | Behavior | 267 | 14.4K | 158 | 157 |
| 97 | Genomics | 326 | 14.3K | 66 | 66 |
| 98 | Catalysis | 363 | 13.9K | 194 | 265 |
| 99 | Biomechanics | 166 | 13.5K | 38 | 22 |
| 100 | Environmental Policy | 180 | 13.5K | 126 | 96 |
| 101 | Developmental Biology | 177 | 13.5K | 125 | 116 |
| 102 | Europe | 596 | 13.4K | 29 | 34 |
| 103 | Disease | 19 | 13.3K | 30 | 18 |
| 104 | diseases | 18 | 13.3K | 39 | 19 |
| 105 | Diabetes mellitus | 239 | 13.2K | 64 | 96 |
| 106 | genome | 173 | 13.2K | 44 | 78 |
| 107 | Neurochemistry | 273 | 13.1K | 75 | 84 |
| 108 | Aging | 375 | 13.0K | 66 | 85 |
| 109 | Biopharmaceutics | 107 | 12.6K | 18 | 1 |
| 110 | Materials Science | 184 | 12.5K | 460 | 297 |
| 111 | human behavior | 171 | 12.3K | 138 | 124 |
| 112 | Hemodynamics | 203 | 12.2K | 8 | 15 |
| 113 | Medical Microbiology | 303 | 12.0K | 35 | 90 |
| 114 | Climate change | 47 | 11.9K | 136 | 71 |
| 115 | Eutrophication | 46 | 11.9K | 134 | 71 |
| 116 | Neuropsychology | 345 | 11.8K | 35 | 61 |
| 117 | Muscles | 166 | 11.8K | 3 | 2 |
| 118 | Health Policy | 429 | 11.7K | 25 | 45 |
| 119 | biological evolution | 159 | 11.7K | 136 | 152 |
| 120 | Social Psychology | 190 | 11.3K | 131 | 125 |
| 121 | nanoscience | 129 | 11.1K | 271 | 181 |
| 122 | Sarcopenia | 141 | 11.1K | 1 | 1 |
| 123 | Drug delivery systems | 42 | 10.9K | 201 | 13 |
| 124 | Colloids | 212 | 10.8K | 303 | 215 |
| 125 | Therapeutics | 191 | 10.7K | 57 | 45 |
| 126 | Health | 228 | 10.5K | 61 | 47 |
| 127 | Bioinformatics | 219 | 10.5K | 47 | 99 |
| 128 | pain | 185 | 10.4K | 48 | 61 |
| 129 | polymerization | 364 | 10.4K | 205 | 230 |
| 130 | Obstetrics | 339 | 10.3K | 79 | 91 |
| 131 | Surface Chemistry | 230 | 10.3K | 267 | 202 |
| 132 | Memory | 232 | 10.3K | 67 | 68 |
| 133 | Histology | 297 | 10.1K | 18 | 40 |
| 134 | Mathematics | 727 | 10.0K | 202 | 213 |
| 135 | Pediatrics | 152 | 10.0K | 179 | 141 |
| 136 | Animal Behavior | 213 | 10.0K | 111 | 127 |
| 137 | Bacteriology | 154 | 10.0K | 113 | 113 |
| 138 | Perception | 212 | 9.8K | 91 | 67 |
| 139 | Diagnostic Imaging | 278 | 9.7K | 27 | 41 |
| 140 | Physical Chemistry | 171 | 9.5K | 111 | 95 |
| 141 | Dermatology | 202 | 9.4K | 86 | 60 |
| 142 | Attention | 200 | 9.1K | 77 | 48 |
| 143 | Plant cells | 96 | 9.1K | 116 | 147 |
| 144 | Visual Perception | 192 | 9.0K | 78 | 49 |
| 145 | Cognitive Science | 148 | 9.0K | 30 | 55 |
| 146 | Cognition | 268 | 8.8K | 51 | 98 |
| 147 | Oncogenes | 124 | 8.5K | 46 | 67 |
| 148 | Cytogenetics | 111 | 8.5K | 89 | 99 |
| 149 | Cell differentiation | 130 | 8.3K | 121 | 176 |
| 150 | Magnetic Resonance Imaging | 106 | 8.3K | 13 | 6 |
| 151 | Optical materials | 127 | 8.3K | 226 | 176 |
| 152 | Medical Imaging | 94 | 8.2K | 11 | 5 |
| 153 | Nanostructured Materials | 259 | 8.1K | 153 | 234 |
| 154 | Medical Laboratory Science | 189 | 8.1K | 45 | 80 |
| 155 | Anatomy | 191 | 8.0K | 85 | 109 |
| 156 | Microbial Ecology | 121 | 8.0K | 171 | 207 |
| 157 | Statistics | 215 | 7.9K | 129 | 134 |
| 158 | Optics | 339 | 7.9K | 277 | 248 |
| 159 | Geriatrics | 387 | 7.8K | 77 | 157 |
| 160 | Cerebral cortex | 154 | 7.8K | 24 | 36 |
| 161 | Ethology | 124 | 7.7K | 135 | 125 |
| 162 | Sleep Disorders | 311 | 7.6K | 23 | 50 |
| 162 | Sleep | 312 | 7.6K | 22 | 54 |
| 164 | Inflammation | 111 | 7.6K | 9 | 3 |
| 165 | soil microbiology | 52 | 7.5K | 216 | 86 |
| 166 | plant molecular biology | 87 | 7.5K | 164 | 153 |
| 167 | Urology | 176 | 7.4K | 102 | 90 |
| 168 | Neurosurgery | 115 | 7.4K | 16 | 11 |
| 169 | Land use | 113 | 7.4K | 11 | 5 |
| 170 | Photonics | 134 | 7.3K | 156 | 146 |
| 171 | Plants | 80 | 7.2K | 239 | 164 |
| 172 | Parasitic Diseases | 189 | 7.1K | 31 | 45 |
| 173 | Environmental Engineering | 56 | 7.1K | 672 | 299 |
| 174 | Sociology | 222 | 7.1K | 156 | 194 |
| 175 | Bones | 96 | 7.1K | 19 | 15 |
| 176 | Reproduction | 199 | 7.1K | 109 | 109 |
| 177 | Analytical Chemistry | 263 | 7.0K | 286 | 378 |
| 178 | Medical innovations | 71 | 7.0K | 45 | 62 |
| 179 | Growth | 74 | 7.0K | 138 | 128 |
| 180 | Evolution | 112 | 7.0K | 173 | 186 |
| 181 | infection | 236 | 6.9K | 14 | 42 |
| 182 | Medical Physics | 107 | 6.9K | 181 | 87 |
| 183 | Soil biology | 42 | 6.9K | 148 | 50 |
| 184 | Cardiovascular diseases | 173 | 6.8K | 46 | 37 |
| 185 | Diagnostic microbiology | 88 | 6.8K | 70 | 82 |
| 186 | Child Development | 121 | 6.7K | 176 | 158 |
| 187 | Parasitology | 192 | 6.7K | 65 | 54 |
| 188 | Clinical Pharmacology | 143 | 6.7K | 37 | 21 |
| 189 | Plant physiology | 171 | 6.6K | 102 | 175 |
| 190 | free radicals | 108 | 6.6K | 46 | 57 |
| 191 | gene therapy | 120 | 6.5K | 29 | 34 |
| 192 | Heart Failure | 72 | 6.5K | 39 | 15 |
| 193 | Clinical Immunology | 212 | 6.5K | 10 | 16 |
| 194 | Obesity | 144 | 6.4K | 122 | 133 |
| 195 | Infections | 212 | 6.4K | 4 | 34 |
| 196 | drug development | 62 | 6.4K | 55 | 61 |
| 197 | Econometrics | 143 | 6.3K | 49 | 81 |
| 198 | Stem cells | 168 | 6.3K | 46 | 61 |
| 199 | Embryology | 104 | 6.2K | 152 | 152 |
| 200 | Diet | 124 | 6.2K | 155 | 186 |
| 201 | Orthopedics | 206 | 6.2K | 44 | 50 |
| 202 | Long-Term Care | 23 | 6.2K | 96 | 17 |
| 202 | Long-term care facilities | 23 | 6.2K | 95 | 17 |
| 204 | Schizophrenia | 150 | 6.1K | 41 | 61 |
| 205 | United Kingdom | 137 | 6.1K | 72 | 82 |
| 206 | Bone diseases | 54 | 6.1K | 8 | 9 |
| 207 | Machine Learning | 13 | 6.1K | 90 | 8 |
| 208 | brain mapping | 131 | 6.0K | 7 | 24 |
| 209 | viruses | 123 | 5.9K | 117 | 149 |
| 210 | environmental pollution | 125 | 5.9K | 473 | 444 |
| 211 | miniaturization | 83 | 5.8K | 194 | 193 |
| 212 | sanitation | 29 | 5.8K | 410 | 214 |
| 213 | Membranes | 112 | 5.8K | 143 | 131 |
| 214 | Bioorganic chemistry | 120 | 5.8K | 233 | 172 |
| 215 | Molecular structure | 85 | 5.8K | 201 | 124 |
| 216 | Sustainable Development | 83 | 5.8K | 75 | 75 |
| 217 | Education | 230 | 5.8K | 234 | 222 |
| 218 | Jurisprudence | 127 | 5.7K | 26 | 4 |
| 219 | preventive medicine | 299 | 5.6K | 13 | 70 |
| 220 | Respiration | 142 | 5.6K | 77 | 95 |
| 221 | Thrombosis | 91 | 5.6K | 87 | 63 |
| 222 | Host-parasite interactions | 66 | 5.6K | 118 | 132 |
| 223 | Environmental Management | 90 | 5.5K | 258 | 179 |
| 223 | Hormones | 113 | 5.5K | 48 | 38 |
| 225 | rehabilitation | 106 | 5.5K | 164 | 120 |
| 226 | Earth Sciences | 132 | 5.5K | 293 | 276 |
| 227 | Genetic engineering | 95 | 5.4K | 133 | 108 |
| 228 | Paleontology | 232 | 5.3K | 19 | 25 |
| 229 | Child psychology | 71 | 5.3K | 224 | 176 |
| 230 | Microelectronics | 66 | 5.3K | 256 | 183 |
| 231 | Organic Chemistry | 110 | 5.3K | 395 | 259 |
| 232 | risk factors | 97 | 5.2K | 13 | 6 |
| 233 | gene mapping | 103 | 5.2K | 119 | 149 |
| 234 | Quality of life | 120 | 5.2K | 33 | 53 |
| 235 | Meteorites | 99 | 5.2K | 96 | 131 |
| 236 | Immunopathology | 141 | 5.2K | 32 | 48 |
| 237 | Biodiversity | 106 | 5.1K | 145 | 159 |
| 238 | Social Sciences | 222 | 5.1K | 140 | 174 |
| 239 | Geophysics | 126 | 5.1K | 520 | 473 |
| 240 | Medical Oncology | 125 | 5.1K | 128 | 142 |
| 241 | global environmental change | 105 | 5.1K | 8 | 27 |
| 242 | Child | 147 | 5.1K | 152 | 127 |
| 243 | Zoology | 248 | 5.0K | 63 | 133 |
| 244 | Genetic therapy | 118 | 5.0K | 40 | 48 |
| 245 | Chemical Engineering | 284 | 5.0K | 340 | 715 |
| 246 | Lipids | 142 | 5.0K | 14 | 60 |
| 247 | Astrocytes | 61 | 4.9K | 11 | 9 |
| 248 | Engineering | 118 | 4.8K | 392 | 214 |
| 248 | Bacterial infections | 82 | 4.8K | 23 | 57 |
| 250 | Meteorology | 98 | 4.8K | 264 | 270 |
| 251 | vascular diseases | 62 | 4.7K | 74 | 56 |
| 252 | Alzheimer's disease | 209 | 4.7K | 69 | 85 |
| 253 | Developing countries | 110 | 4.6K | 141 | 117 |
| 254 | Tropical Medicine | 139 | 4.5K | 46 | 31 |
| 255 | cell physiology | 68 | 4.5K | 170 | 156 |
| 256 | Economic History | 207 | 4.5K | 138 | 157 |
| 257 | Geology | 161 | 4.5K | 336 | 380 |
| 258 | Ophthalmology | 141 | 4.5K | 132 | 156 |
| 259 | Food | 309 | 4.5K | 41 | 248 |
| 260 | Cell metabolism | 27 | 4.5K | 91 | 93 |
| 261 | Economic Development | 82 | 4.5K | 116 | 112 |
| 262 | finance | 72 | 4.5K | 336 | 172 |
| 263 | Synaptic Transmission | 101 | 4.5K | 5 | 4 |
| 264 | Environmental monitoring | 103 | 4.5K | 374 | 407 |
| 265 | Light | 58 | 4.4K | 72 | 115 |
| 266 | Psychosomatic Medicine | 99 | 4.4K | 32 | 45 |
| 267 | Planetary Science | 90 | 4.4K | 24 | 10 |
| 268 | Homeostasis | 17 | 4.4K | 102 | 92 |
| 269 | medical education | 147 | 4.3K | 127 | 121 |
| 270 | Developmental Psychology | 103 | 4.3K | 67 | 95 |
| 271 | Learning | 102 | 4.3K | 98 | 121 |
| 272 | Nanostructures | 49 | 4.2K | 241 | 165 |
| 273 | Nuclear Medicine | 81 | 4.2K | 85 | 56 |
| 274 | Molecular Imaging | 82 | 4.2K | 39 | 42 |
| 275 | Autoimmunity | 71 | 4.2K | 27 | 30 |
| 276 | Electrochemistry | 221 | 4.2K | 386 | 458 |
| 277 | Electrophoresis | 111 | 4.2K | 51 | 34 |
| 278 | Gerontology | 208 | 4.1K | 87 | 105 |
| 279 | management | 57 | 4.1K | 692 | 526 |
| 280 | behavioral medicine | 79 | 4.1K | 104 | 124 |
| 281 | Database Management | 84 | 4.1K | 52 | 46 |
| 282 | proteins | 128 | 4.0K | 108 | 156 |
| 283 | Histochemistry | 171 | 4.0K | 3 | 10 |
| 284 | Environmental Toxicology | 43 | 4.0K | 424 | 174 |
| 285 | Technology | 152 | 3.9K | 311 | 351 |
| 286 | Antigens | 104 | 3.9K | 14 | 24 |
| 287 | Social behavior | 96 | 3.9K | 63 | 99 |
| 288 | Virulence | 67 | 3.8K | 114 | 160 |
| 289 | Fisheries | 83 | 3.8K | 151 | 103 |
| 290 | Molecular evolution | 58 | 3.8K | 167 | 151 |
| 291 | Radiobiology | 87 | 3.7K | 130 | 127 |
| 292 | Hydrology | 121 | 3.7K | 191 | 247 |
| 293 | Chronic diseases | 50 | 3.7K | 86 | 106 |
| 294 | environmental indicators | 42 | 3.6K | 78 | 26 |
| 295 | fuel cells | 31 | 3.6K | 288 | 163 |
| 296 | Emotions | 65 | 3.6K | 31 | 43 |
| 297 | Electronics | 70 | 3.6K | 642 | 360 |
| 298 | Educational Psychology | 106 | 3.5K | 122 | 141 |
| 299 | Signal Transduction | 90 | 3.5K | 70 | 144 |
| 300 | Plant Ecology | 43 | 3.5K | 370 | 224 |
| 301 | biological factors | 88 | 3.5K | 83 | 94 |
| 302 | Artificial Intelligence | 127 | 3.5K | 317 | 462 |
| 303 | Solid State Chemistry | 143 | 3.4K | 183 | 164 |
| 304 | Substance Abuse | 96 | 3.4K | 122 | 95 |
| 305 | Pharmacogenetics | 70 | 3.4K | 47 | 44 |
| 306 | mycoses | 29 | 3.4K | 104 | 84 |
| 307 | Spine | 79 | 3.4K | 42 | 68 |
| 308 | Neuroimmunology | 77 | 3.4K | 19 | 43 |
| 309 | Genetic regulation | 58 | 3.3K | 94 | 135 |
| 310 | Proteome | 69 | 3.3K | 75 | 89 |
| 311 | Climatology | 84 | 3.3K | 208 | 235 |
| 312 | complementary therapies | 140 | 3.3K | 22 | 36 |
| 313 | Alternative Medicine | 136 | 3.3K | 19 | 35 |
| 314 | cytokines | 41 | 3.3K | 119 | 51 |
| 315 | Chromosome mapping | 79 | 3.3K | 134 | 170 |
| 316 | Mycology | 50 | 3.2K | 241 | 144 |
| 317 | Geography | 131 | 3.1K | 170 | 235 |
| 318 | atmospheric models | 38 | 3.1K | 117 | 85 |
| 319 | Psychoneuroimmunology | 66 | 3.1K | 20 | 41 |
| 320 | Experimental Psychology | 21 | 3.1K | 177 | 54 |
| 321 | city planning | 101 | 3.1K | 94 | 107 |
| 322 | Vaccines | 99 | 3.1K | 128 | 140 |
| 323 | Industrial Microbiology | 48 | 3.0K | 252 | 178 |
| 324 | nuclear magnetic resonance | 96 | 3.0K | 78 | 69 |
| 325 | Pharmacy | 86 | 3.0K | 208 | 180 |
| 326 | Decision making | 45 | 3.0K | 186 | 115 |
| 327 | Antibodies | 61 | 3.0K | 18 | 17 |
| 328 | Soil Science | 88 | 3.0K | 168 | 189 |
| 329 | Numerical Analysis | 120 | 2.9K | 118 | 114 |
| 330 | epilepsy | 84 | 2.9K | 38 | 34 |
| 331 | Chemotherapy | 71 | 2.9K | 133 | 82 |
| 332 | Stochastic Processes | 66 | 2.9K | 17 | 3 |
| 333 | Oxidation-reduction | 50 | 2.8K | 49 | 90 |
| 334 | Food Microbiology | 38 | 2.8K | 183 | 117 |
| 335 | Magnetic Resonance Spectroscopy | 91 | 2.8K | 83 | 77 |
| 336 | Energy Conversion | 23 | 2.8K | 376 | 279 |
| 337 | food technology | 46 | 2.8K | 492 | 312 |
| 338 | Renewable Energy Sources | 21 | 2.8K | 943 | 555 |
| 339 | sustainability | 35 | 2.8K | 78 | 78 |
| 340 | lasers | 113 | 2.7K | 179 | 158 |
| 341 | Regional Planning | 88 | 2.7K | 99 | 119 |
| 341 | Population | 32 | 2.7K | 122 | 48 |
| 343 | Quantum theory | 74 | 2.7K | 67 | 49 |
| 344 | Systems Biology | 104 | 2.7K | 62 | 91 |
| 345 | Telecommunication | 25 | 2.7K | 874 | 379 |
| 346 | Paleoclimatology | 58 | 2.7K | 133 | 115 |
| 347 | Linguistics | 181 | 2.7K | 35 | 111 |
| 348 | drug resistance | 71 | 2.7K | 5 | 11 |
| 349 | Adolescent | 61 | 2.7K | 290 | 206 |
| 350 | Communication | 40 | 2.6K | 444 | 252 |
| 351 | Philosophy | 208 | 2.6K | 66 | 79 |
| 352 | Bioenergetics | 58 | 2.6K | 65 | 65 |
| 353 | environmental exposure | 70 | 2.6K | 130 | 129 |
| 354 | cell membrane | 63 | 2.6K | 51 | 60 |
| 355 | organization | 13 | 2.6K | 324 | 163 |
| 356 | Sports Medicine | 105 | 2.6K | 274 | 343 |
| 357 | occupational diseases | 67 | 2.6K | 47 | 49 |
| 358 | Bacteria | 45 | 2.5K | 14 | 23 |
| 359 | Photochemistry | 90 | 2.5K | 57 | 99 |
| 360 | Steroids | 35 | 2.5K | 156 | 51 |
| 361 | Teaching | 39 | 2.5K | 328 | 149 |
| 362 | Forensic Genetics | 42 | 2.5K | 21 | 20 |
| 362 | Molecular Genetics | 57 | 2.5K | 280 | 337 |
| 364 | Cell death | 58 | 2.5K | 127 | 227 |
| 365 | Orthopedic Surgery | 63 | 2.5K | 54 | 29 |
| 366 | biopolymers | 58 | 2.5K | 158 | 123 |
| 367 | rare diseases | 69 | 2.5K | 14 | 18 |
| 368 | Agriculture | 138 | 2.5K | 110 | 238 |
| 369 | Information Technology | 70 | 2.5K | 185 | 253 |
| 370 | Health Services Research | 90 | 2.5K | 140 | 172 |
| 371 | Energy Policy | 51 | 2.5K | 449 | 463 |
| 372 | Environmental Microbiology | 51 | 2.4K | 139 | 206 |
| 373 | General Surgery | 262 | 2.4K | 5 | 28 |
| 374 | Environmental Chemistry | 30 | 2.4K | 448 | 386 |
| 375 | Cytokine | 17 | 2.4K | 59 | 12 |
| 376 | economic policy | 141 | 2.4K | 97 | 151 |
| 377 | Drug design | 56 | 2.4K | 112 | 99 |
| 378 | Neuropsychiatry | 60 | 2.4K | 61 | 50 |
| 379 | Surface properties | 20 | 2.4K | 254 | 51 |
| 380 | Dementia | 178 | 2.4K | 79 | 123 |
| 381 | Political Science | 138 | 2.4K | 133 | 193 |
| 382 | Growth factors | 15 | 2.4K | 23 | 12 |
| 383 | plant communities | 25 | 2.3K | 294 | 197 |
| 384 | drug evaluation | 69 | 2.3K | 44 | 41 |
| 385 | Wireless Communication Systems | 18 | 2.3K | 992 | 308 |
| 386 | Geochemistry | 42 | 2.3K | 522 | 438 |
| 387 | Geriatric Oncology | 25 | 2.3K | 81 | 24 |
| 388 | Soft Condensed Matter | 51 | 2.3K | 174 | 125 |
| 389 | Clinical Biochemistry | 60 | 2.3K | 82 | 84 |
| 390 | Energy metabolism | 50 | 2.3K | 71 | 70 |
| 391 | Molecular Microbiology | 43 | 2.3K | 144 | 191 |
| 392 | environmental protection | 65 | 2.3K | 498 | 574 |
| 392 | Plant diseases | 90 | 2.3K | 206 | 241 |
| 394 | energy resources | 43 | 2.3K | 173 | 248 |
| 395 | Neurotransmitters | 42 | 2.3K | 20 | 28 |
| 396 | Proteomics | 57 | 2.3K | 66 | 97 |
| 397 | Kidney diseases | 72 | 2.3K | 63 | 84 |
| 398 | alcoholism | 67 | 2.2K | 203 | 203 |
| 399 | Cosmology | 25 | 2.2K | 122 | 53 |
| 400 | fertility | 37 | 2.2K | 192 | 160 |
| 400 | Gastrointestinal diseases | 22 | 2.2K | 84 | 5 |
| 402 | Infertility | 34 | 2.2K | 186 | 143 |
| 403 | Paleoecology | 48 | 2.2K | 156 | 126 |
| 404 | Cybernetics | 42 | 2.2K | 290 | 253 |
| 405 | Randomized Controlled Trials | 106 | 2.2K | 45 | 46 |
| 405 | Aquaculture | 48 | 2.2K | 245 | 177 |
| 407 | cell interaction | 60 | 2.2K | 44 | 58 |
| 408 | Parasites | 77 | 2.2K | 98 | 115 |
| 409 | Game Theory | 47 | 2.1K | 38 | 29 |
| 410 | Remote Sensing | 70 | 2.1K | 92 | 62 |
| 411 | Surface-Active Agents | 17 | 2.1K | 275 | 58 |
| 412 | Information Science | 76 | 2.1K | 232 | 343 |
| 413 | Analytical Biochemistry | 44 | 2.1K | 222 | 153 |
| 414 | Bipolar Disorder | 41 | 2.1K | 40 | 43 |
| 415 | Anxiety Disorders | 43 | 2.1K | 52 | 90 |
| 415 | Anxiety | 43 | 2.1K | 52 | 90 |
| 415 | psychotherapy | 157 | 2.1K | 44 | 240 |
| 418 | nuclear astrophysics | 20 | 2.1K | 108 | 37 |
| 419 | cloning | 33 | 2.1K | 59 | 85 |
| 420 | Microscopy | 63 | 2.1K | 96 | 95 |
| 421 | Phylogeny | 41 | 2.1K | 92 | 98 |
| 422 | Artificial Organs | 111 | 2.0K | 12 | 18 |
| 423 | Radiography | 30 | 2.0K | 154 | 159 |
| 424 | Lung Transplantation | 52 | 2.0K | 44 | 53 |
| 424 | Heart transplantation | 52 | 2.0K | 44 | 53 |
| 426 | Comparative Physiology | 79 | 2.0K | 50 | 86 |
| 427 | Bioinorganic chemistry | 87 | 2.0K | 94 | 142 |
| 428 | Antioxidants | 32 | 2.0K | 67 | 97 |
| 429 | Autoimmune diseases | 42 | 2.0K | 41 | 44 |
| 430 | Agricultural Ecology | 100 | 2.0K | 42 | 172 |
| 431 | Lipid metabolism | 45 | 2.0K | 5 | 17 |
| 431 | Lipid | 45 | 2.0K | 5 | 17 |
| 433 | Medical Technology | 100 | 2.0K | 40 | 125 |
| 434 | Wildlife conservation | 44 | 1.9K | 168 | 184 |
| 435 | scientific societies | 51 | 1.9K | 52 | 44 |
| 436 | Nephrology | 47 | 1.9K | 67 | 78 |
| 437 | Water | 61 | 1.9K | 422 | 613 |
| 438 | Plant Genetics | 27 | 1.9K | 128 | 112 |
| 438 | DNA polymerases | 22 | 1.9K | 74 | 106 |
| 440 | Psycholinguistics | 72 | 1.9K | 97 | 168 |
| 441 | Dynamics | 70 | 1.9K | 114 | 77 |
| 442 | older people | 153 | 1.9K | 100 | 135 |
| 443 | Computational Chemistry | 17 | 1.9K | 175 | 90 |
| 444 | Autoantibodies | 39 | 1.9K | 37 | 41 |
| 445 | mathematical analysis | 135 | 1.9K | 180 | 216 |
| 446 | Primary health care | 100 | 1.9K | 129 | 195 |
| 447 | Business | 53 | 1.8K | 358 | 547 |
| 447 | Flow cytometry | 48 | 1.8K | 10 | 12 |
| 449 | environmental issues | 38 | 1.8K | 14 | 16 |
| 450 | Biometrics | 78 | 1.8K | 97 | 140 |
| 451 | Health Education | 52 | 1.8K | 313 | 243 |
| 452 | Biogeography | 27 | 1.8K | 246 | 208 |
| 453 | Fishery management | 30 | 1.8K | 158 | 64 |
| 454 | Reproductive toxicology | 34 | 1.8K | 22 | 22 |
| 455 | Radiation Oncology | 65 | 1.8K | 11 | 9 |
| 455 | Women's health | 44 | 1.8K | 151 | 95 |
| 457 | Paleogeography | 33 | 1.8K | 198 | 139 |
| 458 | Image Processing | 50 | 1.8K | 408 | 439 |
| 458 | Transportation | 22 | 1.8K | 517 | 284 |
| 460 | blood transfusion | 70 | 1.8K | 57 | 56 |
| 461 | Chemical industry | 228 | 1.8K | 32 | 55 |
| 462 | Research Design | 55 | 1.8K | 124 | 197 |
| 463 | Infection control | 62 | 1.8K | 3 | 6 |
| 463 | Antibacterial agents | 30 | 1.8K | 60 | 32 |
| 465 | sex differences | 19 | 1.8K | 3 | 3 |
| 466 | Agricultural systems | 27 | 1.7K | 38 | 26 |
| 467 | Genetic disorders | 73 | 1.7K | 13 | 37 |
| 468 | Immunogenetics | 65 | 1.7K | 26 | 48 |
| 469 | accidents | 123 | 1.7K | 4 | 2 |
| 470 | International Finance | 31 | 1.7K | 393 | 193 |
| 471 | Forensic Psychiatry | 160 | 1.7K | 5 | 25 |
| 472 | Medical Anthropology | 43 | 1.7K | 209 | 259 |
| 473 | Information Theory | 49 | 1.6K | 212 | 211 |
| 474 | Gene expression regulation | 38 | 1.6K | 117 | 167 |
| 475 | probabilities | 102 | 1.6K | 94 | 97 |
| 476 | enzymes | 58 | 1.6K | 141 | 206 |
| 477 | Ethnology | 94 | 1.6K | 81 | 79 |
| 478 | Organometallic chemistry | 77 | 1.6K | 151 | 145 |
| 479 | energy development | 13 | 1.6K | 239 | 187 |
| 480 | Eating Disorders | 60 | 1.6K | 82 | 120 |
| 480 | Feeding and Eating Disorders | 60 | 1.6K | 75 | 116 |
| 482 | Labor Economics | 23 | 1.6K | 67 | 37 |
| 483 | Developmental Genetics | 20 | 1.6K | 128 | 149 |
| 484 | Geometry | 83 | 1.6K | 78 | 37 |
| 485 | animals | 68 | 1.6K | 85 | 80 |
| 486 | Signal Processing | 34 | 1.6K | 745 | 591 |
| 487 | Molecular Pharmacology | 17 | 1.6K | 242 | 124 |
| 488 | histological techniques | 42 | 1.6K | 52 | 87 |
| 489 | Clinical Psychology | 59 | 1.6K | 198 | 313 |
| 490 | System analysis | 68 | 1.6K | 283 | 345 |
| 491 | natural disasters | 21 | 1.5K | 290 | 123 |
| 492 | Oxidative stress | 29 | 1.5K | 88 | 128 |
| 493 | protein | 54 | 1.5K | 132 | 201 |
| 494 | Adolescent Medicine | 11 | 1.5K | 204 | 138 |
| 495 | Pituitary gland | 23 | 1.5K | 20 | 8 |
| 496 | Audiology | 38 | 1.5K | 141 | 125 |
| 497 | Sports | 69 | 1.5K | 328 | 391 |
| 498 | ecosystem | 24 | 1.5K | 369 | 301 |
| 499 | Systems Engineering | 47 | 1.5K | 334 | 296 |
| 500 | human development | 45 | 1.5K | 92 | 129 |
| 501 | Respiratory system | 32 | 1.5K | 70 | 41 |
| 502 | Energy Storage | 25 | 1.5K | 308 | 220 |
| 503 | Germany | 273 | 1.5K | 1 | 5 |
| 504 | Data Mining | 31 | 1.5K | 108 | 112 |
| 505 | Animal ecology | 43 | 1.5K | 225 | 236 |
| 506 | Mass Spectrometry | 56 | 1.5K | 118 | 173 |
| 506 | Electrophysiology | 93 | 1.5K | 50 | 103 |
| 508 | commerce | 52 | 1.4K | 123 | 278 |
| 509 | Entomology | 167 | 1.4K | 117 | 326 |
| 510 | Public Policy | 73 | 1.4K | 172 | 290 |
| 511 | Development | 31 | 1.4K | 122 | 136 |
| 512 | Databases | 44 | 1.4K | 55 | 63 |
| 513 | Crystal growth | 49 | 1.4K | 81 | 108 |
| 514 | health planning | 39 | 1.4K | 402 | 229 |
| 515 | Genes | 32 | 1.4K | 173 | 104 |
| 516 | Planets | 30 | 1.4K | 486 | 478 |
| 517 | Hippocampus | 29 | 1.4K | 27 | 48 |
| 518 | Consciousness | 48 | 1.4K | 12 | 29 |
| 519 | Urban Economics | 9 | 1.4K | 139 | 55 |
| 519 | disease outbreaks | 29 | 1.4K | 66 | 62 |
| 519 | Epidemics | 28 | 1.4K | 66 | 59 |
| 522 | Sustainable agriculture | 32 | 1.4K | 70 | 63 |
| 523 | Electrochemical Analysis | 79 | 1.4K | 115 | 224 |
| 524 | urban population | 8 | 1.4K | 87 | 39 |
| 525 | visualization | 126 | 1.4K | 70 | 119 |
| 526 | Microorganisms | 25 | 1.3K | 201 | 253 |
| 527 | Industrial Policy | 31 | 1.3K | 37 | 40 |
| 528 | Operations Research | 67 | 1.3K | 340 | 512 |
| 529 | Human Geography | 87 | 1.3K | 82 | 175 |
| 530 | Pharmacogenomics | 19 | 1.3K | 20 | 7 |
| 531 | Photobiology | 55 | 1.3K | 57 | 120 |
| 532 | Nanoparticles | 42 | 1.3K | 303 | 393 |
| 533 | International Relations | 49 | 1.3K | 160 | 138 |
| 534 | Automation | 27 | 1.3K | 727 | 611 |
| 535 | bioclimatology | 31 | 1.3K | 87 | 65 |
| 536 | cryosphere | 25 | 1.3K | 88 | 87 |
| 537 | Chromatographic analysis | 64 | 1.3K | 182 | 200 |
| 538 | Immunochemistry | 40 | 1.3K | 98 | 93 |
| 539 | Environmental Law | 32 | 1.3K | 192 | 325 |
| 540 | Mathematical Economics | 22 | 1.3K | 58 | 78 |
| 541 | Marine Biology | 54 | 1.3K | 545 | 671 |
| 542 | Climate | 24 | 1.2K | 68 | 66 |
| 543 | carcinogens | 24 | 1.2K | 194 | 177 |
| 544 | eye | 9 | 1.2K | 64 | 83 |
| 545 | Recombinant DNA | 48 | 1.2K | 161 | 224 |
| 546 | Multiple sclerosis | 40 | 1.2K | 39 | 14 |
| 547 | Malaria | 37 | 1.2K | 79 | 85 |
| 548 | water supply | 33 | 1.2K | 193 | 243 |
| 549 | Molecules | 75 | 1.2K | 201 | 306 |
| 550 | Asthma | 34 | 1.2K | 50 | 42 |
| 550 | Molecular cloning | 46 | 1.2K | 149 | 203 |
| 550 | Genetic recombination | 46 | 1.2K | 141 | 201 |
| 553 | Retina | 8 | 1.2K | 62 | 80 |
| 554 | Evolutionary Genetics | 31 | 1.2K | 33 | 24 |
| 554 | Molecular Epidemiology | 31 | 1.2K | 33 | 24 |
| 556 | Animal Nutrition | 37 | 1.2K | 90 | 75 |
| 557 | Biogeochemistry | 31 | 1.2K | 274 | 339 |
| 558 | Rheology | 17 | 1.2K | 160 | 77 |
| 558 | counseling | 31 | 1.2K | 330 | 247 |
| 560 | Demography | 32 | 1.2K | 96 | 95 |
| 560 | world | 23 | 1.2K | 147 | 167 |
| 562 | Software Engineering | 27 | 1.2K | 222 | 178 |
| 563 | locomotion | 24 | 1.2K | 100 | 81 |
| 563 | posture | 24 | 1.2K | 100 | 81 |
| 563 | gait | 24 | 1.2K | 100 | 81 |
| 563 | walking | 24 | 1.2K | 100 | 81 |
| 567 | weather | 24 | 1.2K | 51 | 39 |
| 568 | energy conservation | 24 | 1.2K | 554 | 632 |
| 569 | Depression | 25 | 1.2K | 45 | 90 |
| 570 | drug addiction | 39 | 1.2K | 221 | 266 |
| 571 | Breeding | 43 | 1.2K | 197 | 220 |
| 572 | Crystallography | 69 | 1.1K | 192 | 167 |
| 573 | freshwater biology | 52 | 1.1K | 56 | 139 |
| 574 | language | 29 | 1.1K | 155 | 154 |
| 575 | Geomorphology | 28 | 1.1K | 370 | 369 |
| 575 | Patient education | 25 | 1.1K | 127 | 120 |
| 577 | viral genetics | 12 | 1.1K | 108 | 151 |
| 578 | Economic Assistance | 23 | 1.1K | 139 | 157 |
| 579 | Nutrition physiology | 27 | 1.1K | 107 | 126 |
| 579 | Chromatography | 58 | 1.1K | 140 | 199 |
| 581 | Physical organic chemistry | 35 | 1.1K | 247 | 194 |
| 581 | Developmental Disabilities | 26 | 1.1K | 247 | 251 |
| 583 | Combinatorial analysis | 38 | 1.1K | 178 | 75 |
| 583 | race relations | 45 | 1.1K | 34 | 51 |
| 585 | individual differences | 29 | 1.1K | 15 | 28 |
| 586 | Cognitive Psychology | 28 | 1.1K | 23 | 15 |
| 587 | Chromosomes | 26 | 1.1K | 172 | 174 |
| 588 | Music | 46 | 1.1K | 80 | 72 |
| 589 | Anthropology | 58 | 1.1K | 240 | 263 |
| 590 | Industrial Organization | 25 | 1.1K | 16 | 24 |
| 591 | Agricultural Chemistry | 36 | 1.1K | 490 | 582 |
| 591 | Computer Vision | 30 | 1.1K | 228 | 317 |
| 593 | Psychometrics | 25 | 1.1K | 95 | 112 |
| 594 | Emergency Medicine | 45 | 1.1K | 222 | 199 |
| 595 | peptides | 37 | 1.0K | 48 | 37 |
| 596 | pain management | 50 | 1.0K | 35 | 70 |
| 597 | disease vectors | 38 | 1.0K | 109 | 134 |
| 598 | Semiconductors | 98 | 1.0K | 152 | 286 |
| 599 | Sexual health | 28 | 1.0K | 117 | 101 |
| 600 | ethanol | 23 | 1.0K | 90 | 58 |
| 601 | Quantum electronics | 40 | 1.0K | 323 | 282 |
| 602 | Immunopharmacology | 34 | 1.0K | 142 | 153 |
| 603 | Carcinogenesis | 20 | 1.0K | 238 | 213 |
| 603 | mutagens | 15 | 1.0K | 246 | 199 |
| 605 | labor | 9 | 1.0K | 121 | 38 |
| 605 | Cell communication | 23 | 1.0K | 58 | 70 |
| 607 | Fractals | 43 | 1.0K | 88 | 128 |
| 608 | Solitons | 42 | 997 | 90 | 131 |
| 608 | Chaos | 42 | 997 | 90 | 131 |
| 608 | calcification | 25 | 997 | 82 | 96 |
| 608 | working class | 2 | 997 | 210 | 38 |
| 612 | Agronomy | 15 | 988 | 127 | 126 |
| 612 | behavior therapy | 23 | 988 | 249 | 218 |
| 614 | emergency management | 16 | 985 | 149 | 63 |
| 615 | Morphology | 44 | 984 | 94 | 108 |
| 616 | Oceanography | 28 | 983 | 529 | 520 |
| 616 | Informatics | 27 | 983 | 118 | 134 |
| 618 | Forest Ecology | 19 | 976 | 328 | 251 |
| 619 | Plant genetic engineering | 19 | 975 | 253 | 225 |
| 620 | Herbal medicine | 22 | 972 | 125 | 109 |
| 621 | Hemostasis | 36 | 969 | 88 | 93 |
| 622 | Magnetic Materials | 41 | 967 | 280 | 346 |
| 622 | innovation | 16 | 967 | 134 | 236 |
| 624 | Information Retrieval | 15 | 966 | 112 | 84 |
| 625 | Public Administration | 32 | 965 | 317 | 278 |
| 626 | Community Psychiatry | 40 | 964 | 143 | 219 |
| 627 | Ethnic relations | 44 | 958 | 25 | 28 |
| 628 | Exercise | 30 | 952 | 334 | 279 |
| 629 | Environmental pollutants | 33 | 949 | 475 | 591 |
| 629 | sports injuries | 29 | 949 | 51 | 26 |
| 631 | Computer Science | 51 | 941 | 218 | 242 |
| 632 | Animal genetics | 39 | 933 | 96 | 112 |
| 633 | Semantics | 16 | 932 | 27 | 11 |
| 634 | Population Genetics | 18 | 930 | 432 | 414 |
| 635 | Social problems | 18 | 926 | 173 | 146 |
| 636 | Energy Harvesting | 11 | 925 | 185 | 201 |
| 636 | Vision | 30 | 925 | 156 | 194 |
| 638 | sexual behavior | 23 | 916 | 134 | 132 |
| 639 | Social Change | 26 | 912 | 149 | 306 |
| 640 | Organometallic compounds | 31 | 908 | 308 | 318 |
| 640 | Speech | 25 | 908 | 229 | 235 |
| 642 | Cognitive Therapy | 22 | 903 | 134 | 102 |
| 643 | Europa | 43 | 901 | 29 | 74 |
| 644 | Medical Ethics | 85 | 896 | 83 | 128 |
| 644 | gene transfer | 19 | 896 | 21 | 16 |
| 644 | genetic transformation | 19 | 896 | 21 | 16 |
| 647 | Elderly | 120 | 894 | 92 | 112 |
| 648 | Social policy | 43 | 884 | 108 | 139 |
| 649 | Forensic Psychology | 138 | 882 | 1 | 33 |
| 650 | Speech Disorders | 32 | 881 | 253 | 268 |
| 651 | Landscape Ecology | 22 | 878 | 67 | 102 |
| 652 | Radiation | 43 | 876 | 382 | 412 |
| 653 | European integration | 13 | 875 | 73 | 27 |
| 653 | European Economic Community | 13 | 875 | 73 | 27 |
| 655 | Physical Therapy | 21 | 870 | 379 | 345 |
| 655 | Mental Health | 41 | 870 | 270 | 315 |
| 657 | Neural circuitry | 25 | 869 | 551 | 555 |
| 658 | Conservation Biology | 27 | 867 | 244 | 331 |
| 658 | Africa | 54 | 867 | 140 | 148 |
| 658 | Atomic spectroscopy | 47 | 867 | 140 | 208 |
| 658 | RNA | 14 | 867 | 172 | 130 |
| 662 | mammals | 23 | 861 | 248 | 171 |
| 663 | Ethnic Conflict | 29 | 858 | 15 | 21 |
| 663 | forced migration | 29 | 858 | 15 | 21 |
| 665 | Personality Assessment | 19 | 855 | 154 | 157 |
| 666 | Travel | 48 | 853 | 63 | 99 |
| 667 | violence | 17 | 851 | 344 | 254 |
| 668 | bees | 18 | 850 | 88 | 65 |
| 669 | Molecular Spectroscopy | 30 | 848 | 417 | 337 |
| 670 | Australia | 36 | 843 | 308 | 286 |
| 671 | Animal | 20 | 840 | 13 | 4 |
| 672 | Calculus of Variations | 32 | 839 | 62 | 37 |
| 673 | Forecasting | 22 | 836 | 64 | 90 |
| 674 | Pregnancy | 21 | 834 | 171 | 134 |
| 675 | Microbial Genetics | 2 | 833 | 432 | 75 |
| 675 | phytopathogenic bacteria | 2 | 833 | 294 | 73 |
| 677 | Multivariate Analysis | 32 | 830 | 55 | 87 |
| 677 | nuclear magnetic resonance spectroscopy | 29 | 830 | 121 | 117 |
| 677 | Fossils | 86 | 830 | 1 | 1 |
| 680 | Robotics | 19 | 824 | 622 | 439 |
| 681 | Pharmaceutical Technology | 51 | 816 | 180 | 410 |
| 682 | Criminology | 139 | 813 | 38 | 218 |
| 682 | Criminal psychology | 138 | 813 | 20 | 198 |
| 684 | Emergency Medical Services | 34 | 812 | 63 | 53 |
| 685 | Nutritional support | 15 | 811 | 23 | 19 |
| 686 | Hematopoietic stem cell transplantation | 17 | 806 | 70 | 70 |
| 687 | Radiology | 63 | 805 | 134 | 218 |
| 687 | Forest Management | 15 | 805 | 363 | 271 |
| 689 | Chronobiology | 26 | 804 | 52 | 49 |
| 689 | biological clocks | 26 | 804 | 52 | 49 |
| 689 | circadian rhythm | 26 | 804 | 52 | 49 |
| 692 | Environmental Geology | 21 | 801 | 464 | 387 |
| 693 | actuators | 38 | 800 | 497 | 760 |
| 693 | transducers | 38 | 800 | 497 | 760 |
| 695 | biological rhythms | 22 | 799 | 57 | 49 |
| 696 | Geriatric Psychiatry | 29 | 791 | 166 | 194 |
| 697 | cosmetics | 19 | 790 | 8 | 9 |
| 698 | cardiac catheterization | 44 | 780 | 81 | 101 |
| 699 | Nursing | 49 | 777 | 282 | 333 |
| 700 | Chemical analysis | 17 | 769 | 332 | 236 |
| 701 | social science | 23 | 766 | 10 | 46 |
| 702 | Aggression | 12 | 764 | 169 | 119 |
| 703 | Biosensors | 20 | 763 | 382 | 560 |
| 704 | Neurolinguistics | 22 | 762 | 79 | 120 |
| 705 | Circadian rhythms | 17 | 757 | 55 | 50 |
| 706 | Functional Analysis | 46 | 753 | 202 | 265 |
| 706 | Pharmacognosy | 21 | 753 | 589 | 630 |
| 706 | tomography | 39 | 753 | 25 | 37 |
| 709 | Philosophy of Mind | 23 | 750 | 19 | 21 |
| 710 | Evidence-Based Medicine | 18 | 749 | 162 | 95 |
| 711 | Recycling | 10 | 746 | 237 | 230 |
| 712 | biochemical markers | 41 | 743 | 21 | 39 |
| 713 | Functional Genomics | 24 | 741 | 27 | 60 |
| 714 | Ecosystem management | 19 | 734 | 163 | 173 |
| 715 | Post-traumatic stress disorder | 34 | 733 | 125 | 232 |
| 716 | Urban Policy | 31 | 732 | 98 | 168 |
| 717 | soil conservation | 20 | 731 | 139 | 112 |
| 718 | Histocompatibility Testing | 25 | 729 | 49 | 54 |
| 719 | Oral Medicine | 31 | 728 | 84 | 58 |
| 719 | Neuromuscular diseases | 25 | 728 | 123 | 154 |
| 721 | China | 48 | 715 | 519 | 679 |
| 722 | Microcirculation | 30 | 711 | 37 | 80 |
| 723 | Neonatology | 24 | 710 | 83 | 92 |
| 724 | Atmospheric Physics | 19 | 709 | 570 | 565 |
| 725 | Pediatric Rheumatology | 29 | 708 | 15 | 12 |
| 726 | Endocrine glands | 11 | 707 | 68 | 110 |
| 727 | Liposomes | 26 | 704 | 62 | 140 |
| 728 | Housing | 15 | 696 | 117 | 90 |
| 729 | Solar System | 19 | 694 | 276 | 266 |
| 730 | Molecular ecology | 19 | 693 | 374 | 494 |
| 731 | Biomolecules | 21 | 686 | 52 | 123 |
| 732 | Engineering Mathematics | 43 | 685 | 303 | 403 |
| 733 | Algorithms | 42 | 682 | 32 | 84 |
| 733 | Aquatic ecology | 24 | 682 | 179 | 191 |
| 735 | Pediatric Dermatology | 15 | 673 | 103 | 44 |
| 736 | Raman spectroscopy | 25 | 670 | 115 | 123 |
| 736 | Digestive system diseases | 27 | 670 | 225 | 245 |
| 738 | Computational Mathematics | 6 | 669 | 59 | 14 |
| 738 | Genetic variation | 17 | 669 | 9 | 5 |
| 740 | liver | 17 | 665 | 45 | 27 |
| 741 | Lipid bilayers | 24 | 663 | 63 | 142 |
| 741 | computer networks | 31 | 663 | 687 | 829 |
| 741 | Developed countries | 8 | 663 | 68 | 47 |
| 744 | Asia | 43 | 659 | 420 | 513 |
| 745 | amino acids | 27 | 658 | 29 | 87 |
| 746 | Psychiatric Epidemiology | 22 | 657 | 88 | 130 |
| 747 | Global Health | 32 | 656 | 153 | 164 |
| 748 | Reproductive health | 15 | 655 | 228 | 163 |
| 749 | Emerging infectious diseases | 14 | 654 | 56 | 47 |
| 749 | hazard mitigation | 9 | 654 | 391 | 189 |
| 751 | natural products | 20 | 653 | 593 | 460 |
| 752 | Ethics | 37 | 650 | 128 | 137 |
| 753 | Endocrine system | 41 | 649 | 82 | 32 |
| 753 | Pancreatic diseases | 22 | 649 | 50 | 58 |
| 755 | Control Theory | 36 | 644 | 434 | 510 |
| 756 | Human-Computer Interaction | 31 | 642 | 242 | 422 |
| 756 | motivation | 12 | 642 | 114 | 98 |
| 756 | Emotion | 11 | 642 | 57 | 62 |
| 759 | Bioelectronics | 15 | 641 | 393 | 554 |
| 760 | Neurotoxicology | 19 | 638 | 88 | 124 |
| 761 | Organizational Behavior | 10 | 632 | 274 | 266 |
| 762 | vitamin C | 10 | 631 | 112 | 75 |
| 762 | vitamin E | 10 | 631 | 112 | 75 |
| 764 | disabilities | 6 | 625 | 434 | 142 |
| 765 | toxicity testing | 16 | 622 | 108 | 89 |
| 766 | Genetic markers | 32 | 621 | 1 | 7 |
| 766 | Sociobiology | 2 | 621 | 280 | 47 |
| 768 | Health Services Administration | 18 | 619 | 262 | 235 |
| 769 | Metallurgy | 24 | 618 | 739 | 706 |
| 770 | Vocational guidance | 13 | 616 | 378 | 354 |
| 771 | Urban Planning | 12 | 615 | 104 | 78 |
| 772 | Soil ecology | 18 | 614 | 202 | 258 |
| 773 | Law | 38 | 613 | 223 | 170 |
| 774 | Information Systems | 30 | 612 | 222 | 338 |
| 775 | Rural Development | 21 | 611 | 73 | 117 |
| 775 | Mental Health Services | 27 | 611 | 280 | 309 |
| 777 | Socioeconomic Factors | 24 | 609 | 134 | 180 |
| 778 | Neuropharmacology | 24 | 608 | 100 | 155 |
| 778 | Public opinion | 16 | 608 | 100 | 93 |
| 780 | Computer Graphics | 24 | 605 | 517 | 548 |
| 781 | Cardiovascular Pharmacology | 16 | 599 | 34 | 19 |
| 782 | Risk | 16 | 595 | 142 | 165 |
| 783 | marketing | 16 | 591 | 835 | 833 |
| 784 | Phenomenology | 12 | 590 | 48 | 8 |
| 784 | Geomagnetism | 9 | 590 | 351 | 201 |
| 784 | community development | 9 | 590 | 264 | 91 |
| 787 | international cooperation | 20 | 588 | 126 | 159 |
| 788 | Social History | 40 | 585 | 15 | 39 |
| 789 | Land Use Planning | 6 | 584 | 223 | 117 |
| 790 | Plastics | 34 | 583 | 321 | 444 |
| 791 | Biological Systems | 15 | 574 | 96 | 98 |
| 792 | Amyotrophic Lateral Sclerosis | 17 | 573 | 45 | 50 |
| 793 | Veterinary Immunology | 15 | 571 | 102 | 78 |
| 794 | Computational Complexity | 49 | 561 | 47 | 94 |
| 795 | Pharmacokinetics | 39 | 559 | 66 | 232 |
| 795 | Mitochondria | 10 | 559 | 46 | 41 |
| 797 | Occupational Health | 22 | 556 | 229 | 243 |
| 798 | Green Chemistry | 20 | 551 | 636 | 901 |
| 799 | Solar Energy | 12 | 548 | 794 | 724 |
| 799 | Differential Equations | 35 | 548 | 176 | 260 |
| 799 | Adolescent Psychology | 13 | 548 | 333 | 327 |
| 802 | Globalization | 17 | 547 | 121 | 107 |
| 803 | Natural resources | 21 | 546 | 179 | 274 |
| 804 | software | 12 | 544 | 404 | 347 |
| 804 | Culture | 26 | 544 | 248 | 199 |
| 806 | Antiviral agents | 16 | 542 | 61 | 61 |
| 807 | Horticulture | 75 | 541 | 29 | 126 |
| 808 | Developmental Neurobiology | 21 | 539 | 72 | 99 |
| 808 | glycoproteins | 24 | 539 | 68 | 145 |
| 808 | Glycoconjugates | 24 | 539 | 68 | 145 |
| 808 | glycolipids | 24 | 539 | 68 | 145 |
| 812 | Atmospheric Chemistry | 9 | 536 | 498 | 493 |
| 812 | Solutions | 6 | 536 | 223 | 34 |
| 814 | Quantum Communication | 7 | 533 | 94 | 60 |
| 815 | Echocardiography | 30 | 531 | 1 | 3 |
| 816 | Entropy | 22 | 530 | 205 | 149 |
| 817 | Animal breeding | 30 | 525 | 182 | 230 |
| 817 | Primates | 16 | 525 | 227 | 196 |
| 819 | Geriatric Pharmacology | 15 | 521 | 52 | 50 |
| 820 | internet | 26 | 516 | 371 | 579 |
| 821 | Water pollution | 18 | 515 | 1,110 | 1,334 |
| 822 | Ultrasonics | 19 | 513 | 350 | 481 |
| 822 | Physical fitness | 17 | 513 | 358 | 396 |
| 824 | adolescence | 17 | 511 | 312 | 367 |
| 824 | Cosmochemistry | 8 | 511 | 508 | 350 |
| 826 | Cross-Cultural Studies | 21 | 509 | 94 | 131 |
| 827 | Parkinson's disease | 13 | 507 | 47 | 53 |
| 828 | children | 4 | 502 | 403 | 168 |
| 829 | Social interaction | 10 | 500 | 127 | 93 |
| 830 | Systems Analysis | 30 | 499 | 166 | 247 |
| 831 | voice | 20 | 495 | 101 | 92 |
| 831 | Fluorescence spectroscopy | 17 | 495 | 34 | 40 |
| 831 | gastrointestinal tract | 18 | 495 | 42 | 135 |
| 834 | Allergies | 17 | 489 | 15 | 30 |
| 835 | Cardiac electrophysiology | 12 | 483 | 91 | 108 |
| 835 | local government | 13 | 483 | 99 | 85 |
| 835 | arrhythmia | 12 | 483 | 91 | 108 |
| 838 | mental processes | 38 | 480 | 21 | 70 |
| 839 | Knowledge | 35 | 479 | 66 | 103 |
| 840 | insurance | 13 | 476 | 124 | 78 |
| 841 | Educational Technology | 21 | 474 | 441 | 551 |
| 842 | Bifurcation Theory | 6 | 473 | 131 | 34 |
| 842 | anesthesia | 37 | 473 | 34 | 30 |
| 844 | Animal health | 26 | 472 | 88 | 56 |
| 845 | Algae | 13 | 471 | 322 | 311 |
| 846 | Neurogenetics | 18 | 466 | 52 | 62 |
| 846 | Hypertension in pregnancy | 21 | 466 | 14 | 20 |
| 848 | Apoptosis | 15 | 462 | 31 | 44 |
| 848 | neurotoxins | 15 | 462 | 31 | 44 |
| 848 | Neurotoxic agents | 15 | 462 | 31 | 44 |
| 848 | Plant breeding | 15 | 462 | 230 | 215 |
| 848 | Nerve regeneration | 15 | 462 | 31 | 44 |
| 853 | Pesticides | 6 | 461 | 391 | 115 |
| 854 | Quantum Optics | 26 | 458 | 189 | 248 |
| 855 | Humanities | 45 | 456 | 138 | 280 |
| 855 | Laser therapy | 16 | 456 | 103 | 51 |
| 857 | Biofilms | 5 | 453 | 78 | 23 |
| 858 | Graph Theory | 23 | 448 | 165 | 125 |
| 858 | Bioacoustics | 15 | 448 | 5 | 4 |
| 860 | child behavior | 2 | 443 | 468 | 183 |
| 860 | hygiene | 9 | 443 | 184 | 99 |
| 862 | Performance | 5 | 442 | 225 | 112 |
| 862 | Fungi | 11 | 442 | 482 | 515 |
| 862 | Educational evaluation | 13 | 442 | 40 | 29 |
| 865 | Analytical Toxicology | 9 | 441 | 70 | 27 |
| 866 | cross-cultural comparison | 23 | 439 | 55 | 88 |
| 867 | Health promotion | 37 | 437 | 201 | 360 |
| 867 | prostaglandins | 23 | 437 | 83 | 116 |
| 869 | Bioethics | 61 | 436 | 81 | 212 |
| 869 | Organ transplantation | 22 | 436 | 73 | 58 |
| 871 | Paleobiology | 22 | 435 | 47 | 27 |
| 872 | Geographic information systems | 20 | 434 | 250 | 227 |
| 873 | Autism | 18 | 430 | 197 | 320 |
| 874 | Osteoporosis | 9 | 429 | 112 | 68 |
| 875 | Sustainable Engineering | 14 | 426 | 701 | 809 |
| 875 | Insects | 19 | 426 | 464 | 473 |
| 877 | History of Medicine | 96 | 424 | 6 | 28 |
| 878 | Environmental Psychology | 12 | 422 | 91 | 206 |
| 879 | Industrial Safety | 20 | 420 | 290 | 393 |
| 880 | behavior modification | 2 | 417 | 449 | 226 |
| 881 | Carbon | 10 | 415 | 673 | 800 |
| 882 | economic forecasting | 11 | 413 | 77 | 117 |
| 882 | Cheminformatics | 9 | 413 | 82 | 166 |
| 882 | Laser Spectroscopy | 20 | 413 | 222 | 233 |
| 885 | Liquid Crystals | 16 | 409 | 324 | 145 |
| 886 | air quality management | 11 | 407 | 144 | 154 |
| 887 | peace | 22 | 402 | 105 | 195 |
| 888 | pollutants | 18 | 401 | 628 | 960 |
| 889 | Corporate governance | 10 | 400 | 178 | 173 |
| 889 | Mechanics | 20 | 400 | 394 | 393 |
| 891 | Ergonomics | 23 | 398 | 264 | 321 |
| 892 | data collection | 11 | 397 | 36 | 79 |
| 893 | Thin Films | 15 | 394 | 111 | 80 |
| 893 | Human evolution | 3 | 394 | 405 | 232 |
| 895 | Entrepreneurship | 5 | 390 | 771 | 604 |
| 896 | Chemical Ecology | 11 | 389 | 207 | 228 |
| 896 | Middle East | 22 | 389 | 204 | 179 |
| 898 | Hearing | 15 | 386 | 250 | 233 |
| 899 | Ultrasound | 8 | 384 | 398 | 269 |
| 900 | Medicinal plants | 10 | 383 | 663 | 711 |
| 901 | feeding behavior | 13 | 382 | 278 | 351 |
| 902 | Venture Capital | 4 | 380 | 229 | 295 |
| 902 | land degradation | 10 | 380 | 146 | 137 |
| 902 | Work | 7 | 380 | 170 | 96 |
| 902 | degradation | 10 | 380 | 146 | 137 |
| 906 | Geopolitics | 20 | 375 | 20 | 36 |
| 906 | Radiotherapy | 41 | 375 | 46 | 69 |
| 906 | Job satisfaction | 6 | 375 | 44 | 70 |
| 906 | job stress | 6 | 375 | 44 | 70 |
| 910 | health services accessibility | 19 | 373 | 250 | 350 |
| 911 | Appetite | 10 | 371 | 279 | 327 |
| 912 | Clinical Trials | 12 | 369 | 157 | 135 |
| 913 | Qualitative Research | 7 | 368 | 294 | 187 |
| 913 | heredity | 13 | 368 | 221 | 200 |
| 915 | Neuroendocrinology | 4 | 367 | 76 | 102 |
| 916 | Radioisotopes | 21 | 365 | 273 | 251 |
| 917 | Nonlinear systems | 12 | 364 | 230 | 179 |
| 918 | forest policy | 14 | 362 | 101 | 103 |
| 919 | Periglacial processes | 5 | 361 | 84 | 51 |
| 919 | Permafrost | 5 | 361 | 84 | 51 |
| 919 | Frozen ground | 5 | 361 | 87 | 51 |
| 922 | Frontotemporal lobar degeneration | 14 | 359 | 41 | 48 |
| 923 | Comparative Education | 7 | 358 | 96 | 22 |
| 924 | Terahertz Technology | 14 | 356 | 20 | 34 |
| 925 | Contraception | 14 | 355 | 185 | 215 |
| 926 | monitoring | 17 | 354 | 32 | 25 |
| 927 | Catalysts | 12 | 353 | 236 | 217 |
| 928 | soil pollution | 11 | 352 | 142 | 123 |
| 929 | Reading | 7 | 351 | 392 | 234 |
| 929 | body temperature | 18 | 351 | 51 | 110 |
| 931 | Carbohydrates | 15 | 348 | 106 | 192 |
| 931 | Mites | 12 | 348 | 124 | 78 |
| 933 | Educational Sociology | 10 | 347 | 120 | 88 |
| 934 | Statistical Mechanics | 12 | 345 | 294 | 217 |
| 935 | Quality Control | 13 | 344 | 661 | 756 |
| 936 | Biomass Energy | 11 | 343 | 1,267 | 1,525 |
| 936 | musculoskeletal system | 4 | 343 | 100 | 46 |
| 938 | Leadership | 6 | 342 | 319 | 330 |
| 938 | Drug delivery devices | 4 | 342 | 171 | 111 |
| 938 | DNA methylation | 11 | 342 | 75 | 124 |
| 938 | Zeolites | 8 | 342 | 519 | 478 |
| 942 | child abuse | 12 | 341 | 347 | 428 |
| 943 | Protein engineering | 10 | 340 | 66 | 90 |
| 944 | Fractional Calculus | 2 | 337 | 210 | 25 |
| 945 | Economic Geography | 22 | 336 | 44 | 125 |
| 945 | Applied Linguistics | 13 | 336 | 205 | 180 |
| 945 | vibration | 3 | 336 | 1,154 | 541 |
| 948 | Organizational change | 5 | 334 | 539 | 281 |
| 948 | transport vesicles | 3 | 334 | 203 | 278 |
| 950 | Mental Health Counseling | 71 | 332 | 1 | 8 |
| 951 | Fluorescence | 22 | 329 | 25 | 58 |
| 952 | Phonetics | 13 | 328 | 105 | 128 |
| 952 | X-ray crystallography | 28 | 328 | 91 | 145 |
| 952 | Soviet Union | 16 | 328 | 144 | 53 |
| 955 | Ceramic materials | 10 | 327 | 689 | 574 |
| 956 | Combinatorial chemistry | 10 | 323 | 318 | 444 |
| 957 | Quantitative Research | 7 | 322 | 128 | 124 |
| 957 | Random graphs | 20 | 322 | 32 | 44 |
| 959 | International Law | 37 | 321 | 37 | 30 |
| 959 | economic conditions | 7 | 321 | 301 | 242 |
| 959 | Matroids | 10 | 321 | 102 | 72 |
| 962 | Archaeology | 29 | 320 | 372 | 515 |
| 962 | industrial relations | 18 | 320 | 279 | 299 |
| 964 | Ceramics | 8 | 317 | 886 | 594 |
| 964 | Ecohydrology | 11 | 317 | 87 | 91 |
| 964 | indoor air pollution | 8 | 317 | 150 | 155 |
| 964 | Ventilation | 8 | 317 | 234 | 182 |
| 964 | Sick building syndrome | 8 | 317 | 150 | 155 |
| 969 | Oligosaccharide | 11 | 316 | 89 | 159 |
| 969 | DNA repair | 6 | 316 | 159 | 120 |
| 969 | Acarology | 9 | 316 | 99 | 71 |
| 969 | Ticks | 9 | 316 | 94 | 71 |
| 969 | Acari | 9 | 316 | 94 | 71 |
| 974 | molecular design | 11 | 314 | 75 | 92 |
| 974 | Human biology | 8 | 314 | 326 | 205 |
| 976 | income distribution | 10 | 313 | 31 | 74 |
| 976 | Zoonoses | 7 | 313 | 115 | 89 |
| 978 | Musicology | 15 | 311 | 36 | 29 |
| 979 | Suicide | 9 | 310 | 246 | 215 |
| 980 | Glass | 7 | 307 | 656 | 512 |
| 980 | pottery | 7 | 307 | 625 | 507 |
| 982 | Yeast | 8 | 306 | 198 | 215 |
| 983 | Language Disorders | 20 | 305 | 266 | 356 |
| 984 | Democracy | 17 | 304 | 39 | 54 |
| 985 | Electrical Engineering | 53 | 303 | 716 | 1,168 |
| 985 | Evolutionary economics | 4 | 303 | 116 | 45 |
| 985 | Culture techniques | 6 | 303 | 173 | 93 |
| 985 | Population Dynamics | 4 | 303 | 121 | 50 |
| 989 | Seaweed | 8 | 298 | 318 | 330 |
| 990 | Biogeochemical cycles | 3 | 297 | 389 | 347 |
| 990 | Roads | 3 | 297 | 637 | 262 |
| 992 | livestock | 35 | 296 | 68 | 149 |
| 993 | health workforce | 8 | 295 | 65 | 89 |
| 994 | ethnicity | 14 | 291 | 223 | 174 |
| 994 | Formal Languages | 37 | 291 | 8 | 23 |
| 994 | Geobiology | 8 | 291 | 220 | 204 |
| 997 | Mineral resources | 2 | 290 | 845 | 316 |
| 998 | pheromones | 7 | 289 | 271 | 275 |
| 999 | cultural policy | 4 | 287 | 172 | 49 |
| 1000 | Popular culture | 5 | 286 | 386 | 63 |