| 1 | Physics | 4,702 | 412.1K | 57 | 53 |
| 2 | Biology | 3,569 | 341.1K | 54 | 59 |
| 3 | Science | 3,655 | 323.9K | 51 | 63 |
| 4 | Chemistry | 2,735 | 225.6K | 112 | 66 |
| 5 | Medicine | 2,260 | 211.4K | 117 | 62 |
| 6 | Natural history | 1,199 | 165.9K | 26 | 66 |
| 7 | Epidemiology | 1,348 | 143.0K | 12 | 4 |
| 8 | Biochemistry | 2,500 | 142.8K | 111 | 82 |
| 9 | Public Health | 1,399 | 117.5K | 40 | 18 |
| 10 | Human genetics | 269 | 103.4K | 90 | 47 |
| 11 | Neurology | 1,082 | 86.0K | 139 | 110 |
| 12 | Molecular Biology | 1,240 | 85.6K | 174 | 158 |
| 13 | Astronomy | 907 | 82.5K | 149 | 110 |
| 14 | Research | 1,463 | 71.4K | 126 | 94 |
| 15 | Ecology | 918 | 68.0K | 126 | 124 |
| 16 | Geology | 995 | 60.0K | 16 | 15 |
| 17 | Microbiology | 815 | 52.2K | 173 | 166 |
| 18 | Genetics | 372 | 52.0K | 153 | 77 |
| 19 | Astrophysics | 445 | 51.7K | 301 | 222 |
| 20 | Geochemistry | 699 | 50.8K | 13 | 11 |
| 21 | Botany | 786 | 49.1K | 57 | 50 |
| 22 | Nuclear Physics | 1,018 | 46.8K | 213 | 184 |
| 23 | Psychiatry | 532 | 45.3K | 134 | 80 |
| 24 | Geophysics | 868 | 43.2K | 83 | 67 |
| 25 | Neurophysiology | 492 | 41.2K | 83 | 66 |
| 26 | Psychology | 660 | 41.1K | 130 | 87 |
| 27 | Materials | 762 | 41.0K | 206 | 190 |
| 28 | Composite Materials | 784 | 40.4K | 12 | 10 |
| 29 | Chronic diseases | 132 | 39.0K | 21 | 8 |
| 30 | United Kingdom | 641 | 38.8K | 5 | 3 |
| 31 | Earth Sciences | 360 | 38.7K | 49 | 15 |
| 32 | Physiology | 680 | 36.9K | 88 | 80 |
| 33 | Statistics | 358 | 36.7K | 76 | 27 |
| 34 | Mental Disorders | 461 | 36.7K | 61 | 42 |
| 35 | Animal Behavior | 586 | 35.8K | 9 | 13 |
| 36 | Polymers | 769 | 34.5K | 107 | 79 |
| 37 | Cytology | 490 | 33.8K | 181 | 195 |
| 38 | Colloids | 702 | 33.3K | 33 | 21 |
| 39 | Meteorology | 438 | 31.4K | 63 | 51 |
| 40 | Cell Biology | 367 | 30.8K | 210 | 208 |
| 41 | Ethology | 488 | 30.2K | 5 | 11 |
| 42 | Environment | 355 | 29.5K | 216 | 180 |
| 43 | Research Design | 145 | 29.3K | 34 | 12 |
| 44 | Biophysics | 544 | 29.2K | 236 | 134 |
| 45 | Medical genetics | 286 | 29.1K | 128 | 84 |
| 46 | Hydrology | 362 | 28.3K | 35 | 9 |
| 47 | Endocrinology | 409 | 26.6K | 124 | 122 |
| 48 | polymerization | 570 | 26.5K | 104 | 62 |
| 49 | Meteorites | 272 | 26.1K | 24 | 18 |
| 50 | Mathematics | 1,019 | 26.0K | 107 | 49 |
| 51 | Surface Chemistry | 586 | 25.3K | 47 | 39 |
| 52 | Statistical physics | 604 | 24.8K | 89 | 68 |
| 53 | Psychophysiology | 405 | 24.1K | 115 | 100 |
| 54 | Diabetes | 264 | 23.9K | 67 | 42 |
| 55 | Diabetes mellitus | 258 | 23.8K | 53 | 37 |
| 56 | Condensed Matter | 620 | 23.3K | 164 | 168 |
| 57 | Pollution | 259 | 22.5K | 354 | 224 |
| 58 | Econometrics | 101 | 21.7K | 82 | 22 |
| 59 | Planets | 303 | 21.7K | 74 | 52 |
| 60 | Solid State Physics | 562 | 20.7K | 208 | 181 |
| 61 | Sociology | 410 | 20.4K | 51 | 49 |
| 62 | Biometrics | 103 | 20.2K | 69 | 9 |
| 63 | Biogeochemistry | 294 | 19.8K | 5 | 6 |
| 64 | Pediatrics | 278 | 19.7K | 99 | 79 |
| 65 | Spectrum analysis | 322 | 19.7K | 304 | 303 |
| 66 | Mathematical Physics | 348 | 19.6K | 86 | 37 |
| 67 | biological evolution | 222 | 19.6K | 82 | 84 |
| 68 | Pharmacology | 357 | 19.2K | 358 | 206 |
| 69 | Evolution | 259 | 18.9K | 47 | 65 |
| 70 | Materials Science | 345 | 18.9K | 251 | 208 |
| 71 | Manufacturing Processes | 351 | 18.2K | 35 | 14 |
| 72 | human behavior | 192 | 18.2K | 115 | 77 |
| 73 | Engineering | 422 | 17.8K | 68 | 28 |
| 74 | Virology | 180 | 17.8K | 248 | 222 |
| 75 | Economics | 612 | 17.5K | 68 | 115 |
| 76 | Bacteriology | 281 | 17.5K | 46 | 63 |
| 77 | Neurobiology | 147 | 17.2K | 115 | 59 |
| 78 | Diet | 231 | 17.2K | 57 | 43 |
| 79 | Petrology | 192 | 16.5K | 22 | 12 |
| 80 | Nanotechnology | 392 | 16.5K | 280 | 343 |
| 81 | Social Psychology | 171 | 16.5K | 159 | 90 |
| 82 | Water | 190 | 15.9K | 112 | 71 |
| 83 | Technology | 239 | 15.9K | 184 | 59 |
| 84 | Environmental Health | 290 | 15.8K | 263 | 245 |
| 85 | Brain | 306 | 15.7K | 122 | 122 |
| 86 | Geography | 334 | 15.4K | 43 | 34 |
| 87 | Climatology | 202 | 15.4K | 80 | 59 |
| 88 | Mineralogy | 180 | 15.3K | 45 | 14 |
| 89 | Biodiversity conservation | 111 | 14.9K | 110 | 77 |
| 90 | Paleontology | 482 | 14.7K | 2 | 1 |
| 91 | Biocompatible Materials | 209 | 14.6K | 315 | 235 |
| 92 | Bioorganic chemistry | 205 | 14.5K | 84 | 35 |
| 93 | Physical Chemistry | 180 | 14.5K | 106 | 50 |
| 94 | Zoology | 360 | 14.4K | 26 | 15 |
| 95 | Medical Anthropology | 192 | 14.4K | 30 | 20 |
| 96 | Cosmochemistry | 209 | 14.4K | 3 | 2 |
| 97 | Cardiovascular system | 113 | 14.3K | 171 | 127 |
| 98 | Immunology | 292 | 13.8K | 197 | 240 |
| 99 | water supply | 151 | 13.7K | 31 | 14 |
| 100 | Metabolism | 236 | 13.7K | 160 | 169 |
| 101 | Molecules | 195 | 13.6K | 36 | 8 |
| 102 | Organic Geochemistry | 181 | 13.5K | 1 | 1 |
| 103 | Climate change | 71 | 13.5K | 85 | 57 |
| 103 | Eutrophication | 71 | 13.5K | 84 | 57 |
| 105 | Optics | 496 | 13.5K | 192 | 148 |
| 106 | Organic Chemistry | 171 | 13.1K | 229 | 64 |
| 107 | Computational Biology | 156 | 13.0K | 140 | 95 |
| 108 | Health Policy | 397 | 13.0K | 32 | 37 |
| 109 | Biotechnology | 196 | 12.9K | 519 | 416 |
| 110 | Cytogenetics | 86 | 12.9K | 118 | 64 |
| 111 | Cancer | 236 | 12.7K | 216 | 222 |
| 112 | Hypertension | 140 | 12.6K | 140 | 134 |
| 113 | Behavior | 244 | 12.6K | 166 | 178 |
| 114 | Plants | 116 | 12.4K | 147 | 93 |
| 115 | Nutrition | 243 | 12.4K | 233 | 197 |
| 116 | Neurochemistry | 229 | 12.4K | 107 | 90 |
| 117 | Social Sciences | 362 | 12.4K | 56 | 52 |
| 118 | Nonlinear Dynamics | 295 | 12.3K | 61 | 44 |
| 119 | Hematology | 172 | 12.1K | 273 | 198 |
| 120 | Obesity | 214 | 12.1K | 71 | 59 |
| 121 | Child psychology | 219 | 12.0K | 72 | 88 |
| 122 | Earthquake Engineering | 249 | 12.0K | 38 | 27 |
| 123 | genome | 88 | 12.0K | 116 | 90 |
| 124 | Molecular structure | 124 | 11.9K | 115 | 51 |
| 125 | alcoholism | 265 | 11.7K | 43 | 35 |
| 126 | Plant cells | 90 | 11.7K | 128 | 113 |
| 127 | Human Geography | 261 | 11.5K | 13 | 11 |
| 128 | Mental illness | 222 | 11.4K | 74 | 94 |
| 129 | Atmospheric Physics | 225 | 11.2K | 83 | 90 |
| 130 | nucleic acids | 132 | 11.2K | 118 | 141 |
| 131 | Chemical Engineering | 91 | 11.2K | 871 | 363 |
| 132 | United States | 213 | 11.1K | 378 | 265 |
| 133 | Psychopharmacology | 145 | 11.1K | 86 | 74 |
| 134 | heredity | 23 | 11.0K | 119 | 2 |
| 135 | Cognitive Science | 84 | 11.0K | 96 | 39 |
| 136 | Cognitive neuroscience | 67 | 11.0K | 116 | 55 |
| 137 | Genetic epidemiology | 19 | 11.0K | 58 | 2 |
| 138 | drug addiction | 237 | 10.9K | 32 | 28 |
| 139 | Memory | 191 | 10.8K | 95 | 65 |
| 140 | Biodiversity | 160 | 10.6K | 70 | 65 |
| 141 | Education | 447 | 10.5K | 97 | 125 |
| 142 | Surgery | 286 | 10.5K | 58 | 208 |
| 143 | Photonics | 118 | 10.5K | 180 | 97 |
| 144 | Cell differentiation | 88 | 10.3K | 183 | 133 |
| 145 | transport vesicles | 2 | 10.3K | 287 | 150 |
| 146 | behavioral medicine | 61 | 9.8K | 142 | 47 |
| 147 | Pathology | 118 | 9.8K | 219 | 123 |
| 148 | Randomized Controlled Trials | 288 | 9.7K | 5 | 5 |
| 149 | Metabolic diseases | 144 | 9.4K | 193 | 195 |
| 150 | Genomics | 166 | 9.3K | 184 | 121 |
| 151 | Cognition | 221 | 9.3K | 70 | 93 |
| 152 | Perception | 269 | 9.0K | 67 | 73 |
| 153 | Atmospheric Chemistry | 158 | 9.0K | 66 | 84 |
| 154 | Light | 46 | 9.0K | 100 | 42 |
| 155 | Animal ecology | 158 | 9.0K | 26 | 22 |
| 156 | Environmental monitoring | 116 | 8.8K | 325 | 167 |
| 157 | Bioinformatics | 90 | 8.7K | 186 | 126 |
| 158 | Microbial Ecology | 117 | 8.5K | 183 | 186 |
| 159 | plant molecular biology | 67 | 8.2K | 208 | 141 |
| 160 | Plant physiology | 141 | 8.0K | 144 | 148 |
| 161 | Europe | 400 | 8.0K | 58 | 88 |
| 162 | Paleoecology | 179 | 8.0K | 7 | 8 |
| 163 | Automation | 57 | 7.9K | 385 | 168 |
| 164 | Physical fitness | 100 | 7.9K | 21 | 16 |
| 165 | Neuropsychology | 184 | 7.9K | 110 | 107 |
| 166 | cell membrane | 89 | 7.7K | 28 | 10 |
| 167 | Parasitology | 164 | 7.7K | 90 | 36 |
| 168 | Child Development | 188 | 7.7K | 102 | 128 |
| 169 | Cell death | 24 | 7.6K | 334 | 123 |
| 170 | preventive medicine | 68 | 7.5K | 123 | 51 |
| 171 | city planning | 119 | 7.5K | 71 | 27 |
| 172 | Oceanography | 131 | 7.5K | 157 | 121 |
| 173 | environmental pollution | 155 | 7.4K | 371 | 350 |
| 174 | Biogeochemical cycles | 53 | 7.4K | 27 | 15 |
| 175 | Ophthalmology | 151 | 7.3K | 120 | 94 |
| 176 | Environmental Policy | 144 | 7.3K | 179 | 206 |
| 177 | Health Services Research | 240 | 7.3K | 37 | 62 |
| 178 | Analytical Chemistry | 166 | 7.3K | 480 | 370 |
| 179 | Bioenergetics | 80 | 7.1K | 42 | 15 |
| 180 | Developmental Biology | 106 | 7.1K | 217 | 209 |
| 181 | Energy metabolism | 79 | 7.1K | 38 | 15 |
| 182 | Radio | 114 | 7.0K | 120 | 96 |
| 183 | Structural dynamics | 156 | 7.0K | 32 | 35 |
| 184 | atmospheric models | 106 | 6.9K | 30 | 28 |
| 185 | Paleoclimatology | 165 | 6.9K | 12 | 19 |
| 186 | Quantum Gravity | 189 | 6.8K | 331 | 350 |
| 187 | cryosphere | 79 | 6.7K | 16 | 8 |
| 188 | Medical Microbiology | 125 | 6.7K | 172 | 193 |
| 189 | Histology | 132 | 6.5K | 91 | 83 |
| 190 | Paleogeography | 157 | 6.5K | 5 | 11 |
| 191 | Breeding | 55 | 6.5K | 150 | 35 |
| 192 | Artificial Intelligence | 181 | 6.4K | 208 | 246 |
| 193 | disease outbreaks | 94 | 6.4K | 13 | 10 |
| 194 | Epidemics | 93 | 6.4K | 12 | 10 |
| 195 | mammals | 93 | 6.3K | 35 | 7 |
| 196 | Molecular Genetics | 126 | 6.2K | 109 | 143 |
| 197 | Biomedical Engineering | 175 | 6.2K | 446 | 427 |
| 198 | vascular diseases | 76 | 6.2K | 53 | 41 |
| 199 | Immunity | 76 | 6.2K | 245 | 288 |
| 200 | management | 144 | 6.1K | 296 | 383 |
| 201 | Anatomy | 128 | 6.1K | 152 | 153 |
| 202 | Reproduction | 133 | 6.1K | 179 | 134 |
| 203 | Regional Planning | 137 | 6.0K | 48 | 45 |
| 204 | Critical Care | 64 | 6.0K | 211 | 174 |
| 205 | Critical Care Medicine | 63 | 6.0K | 218 | 174 |
| 206 | Electrochemistry | 293 | 5.9K | 270 | 339 |
| 207 | Economic History | 293 | 5.9K | 65 | 112 |
| 208 | Medical innovations | 36 | 5.8K | 113 | 76 |
| 209 | Telecommunication | 126 | 5.8K | 238 | 215 |
| 210 | Parasitic Diseases | 130 | 5.7K | 73 | 67 |
| 211 | Spine | 33 | 5.7K | 118 | 33 |
| 212 | Aging | 163 | 5.7K | 197 | 199 |
| 213 | Catalysis | 129 | 5.6K | 580 | 570 |
| 214 | Visual Perception | 121 | 5.6K | 134 | 80 |
| 215 | Signal Processing | 127 | 5.6K | 269 | 244 |
| 216 | Business | 119 | 5.6K | 104 | 216 |
| 217 | Volcanoes | 117 | 5.6K | 2 | 4 |
| 218 | Environmental Engineering | 124 | 5.5K | 334 | 360 |
| 219 | Child | 174 | 5.5K | 118 | 118 |
| 220 | Smart Materials | 113 | 5.5K | 25 | 19 |
| 221 | Cheminformatics | 8 | 5.5K | 102 | 4 |
| 222 | Nervous system | 140 | 5.4K | 185 | 247 |
| 223 | Attention | 116 | 5.4K | 151 | 92 |
| 224 | Vision | 97 | 5.4K | 47 | 43 |
| 225 | Obstetrics | 113 | 5.4K | 230 | 156 |
| 226 | Pharmaceutical Chemistry | 131 | 5.3K | 383 | 350 |
| 227 | Genetic engineering | 86 | 5.3K | 157 | 115 |
| 228 | Thrombosis | 73 | 5.3K | 112 | 67 |
| 229 | Parasites | 108 | 5.2K | 56 | 30 |
| 230 | Plant genetic engineering | 34 | 5.2K | 139 | 31 |
| 231 | Primary health care | 158 | 5.2K | 56 | 54 |
| 232 | Political Science | 216 | 5.2K | 66 | 98 |
| 233 | cell physiology | 47 | 5.1K | 254 | 133 |
| 234 | Archaeology | 132 | 5.1K | 73 | 50 |
| 235 | drug development | 21 | 5.1K | 212 | 87 |
| 236 | Ultrasonics | 96 | 5.1K | 42 | 25 |
| 237 | Nondestructive testing | 80 | 5.0K | 14 | 3 |
| 238 | Electronics | 171 | 5.0K | 292 | 272 |
| 239 | Bioengineering | 93 | 5.0K | 592 | 568 |
| 240 | Ultrasound | 91 | 5.0K | 31 | 12 |
| 241 | Plant Biotechnology | 26 | 5.0K | 123 | 10 |
| 242 | Plant diseases | 143 | 5.0K | 126 | 101 |
| 243 | Public Policy | 178 | 4.9K | 40 | 65 |
| 244 | Adhesion | 48 | 4.9K | 16 | 2 |
| 244 | adhesives | 48 | 4.9K | 20 | 2 |
| 246 | Agriculture | 91 | 4.9K | 172 | 118 |
| 247 | Diagnostic microbiology | 44 | 4.8K | 176 | 131 |
| 248 | Information Theory | 104 | 4.8K | 84 | 84 |
| 249 | Food | 141 | 4.8K | 191 | 229 |
| 250 | Plant Ecology | 64 | 4.7K | 245 | 161 |
| 251 | Structural Engineering | 132 | 4.7K | 122 | 103 |
| 252 | Molecular ecology | 80 | 4.7K | 86 | 118 |
| 253 | Optical materials | 68 | 4.6K | 437 | 310 |
| 254 | Fluid Mechanics | 81 | 4.5K | 134 | 73 |
| 255 | Soft Condensed Matter | 118 | 4.5K | 53 | 45 |
| 256 | Ocean Engineering | 104 | 4.5K | 157 | 110 |
| 257 | Neurons | 26 | 4.5K | 146 | 177 |
| 258 | Speech Disorders | 62 | 4.4K | 149 | 58 |
| 259 | Quantum theory | 147 | 4.4K | 18 | 22 |
| 260 | Soil dynamics | 67 | 4.4K | 19 | 6 |
| 261 | Mechanical Engineering | 189 | 4.4K | 95 | 81 |
| 262 | Geomorphology | 79 | 4.4K | 106 | 74 |
| 263 | biopolymers | 111 | 4.4K | 58 | 45 |
| 264 | arthritis | 82 | 4.4K | 129 | 135 |
| 265 | Vaccines | 96 | 4.3K | 135 | 87 |
| 266 | Structural design | 85 | 4.3K | 27 | 18 |
| 267 | Metallurgy | 101 | 4.3K | 253 | 212 |
| 268 | drug therapy | 84 | 4.3K | 288 | 200 |
| 269 | Agricultural Ecology | 57 | 4.3K | 91 | 69 |
| 269 | Psycholinguistics | 94 | 4.3K | 70 | 78 |
| 271 | Metals | 111 | 4.3K | 194 | 204 |
| 272 | Information Science | 27 | 4.3K | 686 | 150 |
| 273 | Growth | 59 | 4.3K | 167 | 180 |
| 274 | Membranes | 55 | 4.2K | 298 | 193 |
| 275 | Physical organic chemistry | 86 | 4.2K | 50 | 10 |
| 276 | Fracture mechanics | 111 | 4.2K | 87 | 67 |
| 277 | Population Genetics | 91 | 4.2K | 86 | 123 |
| 278 | vibration | 106 | 4.2K | 50 | 50 |
| 279 | Communication | 55 | 4.1K | 344 | 165 |
| 280 | Marine Biology | 92 | 4.1K | 344 | 275 |
| 281 | Virulence | 53 | 4.1K | 151 | 146 |
| 282 | environmental protection | 77 | 4.1K | 414 | 317 |
| 283 | Geriatrics | 138 | 4.1K | 262 | 271 |
| 284 | Social work | 170 | 4.0K | 68 | 53 |
| 285 | Social behavior | 74 | 4.0K | 101 | 94 |
| 286 | Alzheimer's disease | 93 | 4.0K | 155 | 98 |
| 287 | Health Information Management | 10 | 4.0K | 70 | 22 |
| 288 | Hydraulic Engineering | 79 | 4.0K | 79 | 48 |
| 289 | Sustainable Development | 37 | 4.0K | 274 | 110 |
| 290 | Rheumatology | 80 | 4.0K | 96 | 105 |
| 291 | feeding behavior | 111 | 3.9K | 14 | 23 |
| 292 | Embryology | 67 | 3.9K | 222 | 220 |
| 293 | Biomechanics | 43 | 3.9K | 212 | 119 |
| 294 | Appetite | 109 | 3.9K | 12 | 20 |
| 295 | Entomology | 148 | 3.9K | 136 | 118 |
| 296 | Toxicology | 88 | 3.9K | 727 | 614 |
| 297 | Community Psychiatry | 91 | 3.9K | 48 | 53 |
| 298 | Mycology | 137 | 3.8K | 68 | 113 |
| 299 | Sports Medicine | 55 | 3.8K | 477 | 254 |
| 300 | Image Processing | 112 | 3.7K | 183 | 244 |
| 301 | Fungi | 126 | 3.7K | 24 | 79 |
| 302 | Molecular evolution | 52 | 3.7K | 191 | 154 |
| 303 | Sound | 82 | 3.7K | 49 | 43 |
| 304 | Host-parasite interactions | 49 | 3.7K | 173 | 196 |
| 305 | Robotics | 101 | 3.7K | 107 | 105 |
| 306 | natural disasters | 75 | 3.6K | 35 | 24 |
| 307 | Wildlife conservation | 60 | 3.6K | 102 | 102 |
| 308 | Nanostructured Materials | 98 | 3.6K | 478 | 493 |
| 309 | Economic Development | 67 | 3.6K | 146 | 146 |
| 309 | Sedimentology | 47 | 3.6K | 31 | 13 |
| 311 | Developing countries | 98 | 3.6K | 162 | 158 |
| 312 | Biochemical Engineering | 39 | 3.6K | 871 | 676 |
| 313 | Schizophrenia | 81 | 3.6K | 106 | 109 |
| 314 | Tropical Medicine | 57 | 3.5K | 172 | 51 |
| 315 | Psychiatric Epidemiology | 81 | 3.5K | 9 | 12 |
| 316 | Dynamics | 153 | 3.5K | 16 | 25 |
| 317 | Geomagnetism | 83 | 3.5K | 43 | 30 |
| 318 | soil microbiology | 86 | 3.5K | 113 | 209 |
| 319 | Systems Engineering | 132 | 3.4K | 82 | 115 |
| 320 | Comparative Physiology | 66 | 3.4K | 63 | 40 |
| 320 | Sites | 53 | 3.4K | 38 | 26 |
| 322 | Hemodynamics | 48 | 3.4K | 93 | 97 |
| 323 | Power Electronics | 73 | 3.4K | 130 | 131 |
| 324 | pain | 83 | 3.4K | 129 | 175 |
| 325 | Ferroelectricity | 67 | 3.4K | 91 | 18 |
| 326 | Philosophy | 271 | 3.3K | 43 | 55 |
| 327 | Molecular Microbiology | 43 | 3.3K | 144 | 145 |
| 328 | Information Technology | 31 | 3.3K | 503 | 184 |
| 329 | Radio frequency | 60 | 3.3K | 25 | 13 |
| 330 | Quality of life | 71 | 3.3K | 80 | 97 |
| 331 | Microscopy | 68 | 3.3K | 81 | 51 |
| 332 | Bones | 63 | 3.3K | 46 | 62 |
| 333 | Health promotion | 57 | 3.3K | 144 | 97 |
| 334 | International Relations | 137 | 3.3K | 32 | 41 |
| 335 | personality | 49 | 3.2K | 287 | 244 |
| 336 | Machine Learning | 26 | 3.2K | 30 | 33 |
| 337 | Systems Biology | 81 | 3.2K | 89 | 69 |
| 338 | Adolescent | 115 | 3.2K | 161 | 174 |
| 339 | Paleoceanography | 45 | 3.2K | 10 | 13 |
| 340 | Radio waves | 46 | 3.2K | 163 | 104 |
| 341 | Sports | 56 | 3.2K | 387 | 214 |
| 342 | Dementia | 86 | 3.2K | 159 | 104 |
| 343 | economic policy | 105 | 3.2K | 156 | 107 |
| 343 | Organometallic compounds | 76 | 3.2K | 84 | 69 |
| 345 | Educational Psychology | 75 | 3.1K | 171 | 164 |
| 346 | Veterinary Immunology | 99 | 3.1K | 11 | 12 |
| 347 | Food Microbiology | 50 | 3.1K | 133 | 104 |
| 348 | Smoking | 82 | 3.1K | 60 | 56 |
| 349 | gene therapy | 38 | 3.1K | 157 | 99 |
| 350 | rehabilitation | 65 | 3.1K | 270 | 226 |
| 351 | child abuse | 75 | 3.1K | 58 | 73 |
| 352 | Oncogenes | 34 | 3.1K | 237 | 208 |
| 353 | Chemical analysis | 47 | 3.0K | 75 | 26 |
| 354 | Computer Science | 73 | 3.0K | 127 | 48 |
| 355 | Therapeutics | 63 | 3.0K | 239 | 199 |
| 356 | Learning | 80 | 3.0K | 127 | 168 |
| 357 | Soil Mechanics | 73 | 3.0K | 125 | 108 |
| 358 | Quantum electronics | 112 | 3.0K | 126 | 103 |
| 359 | Medical Laboratory Science | 66 | 2.9K | 231 | 267 |
| 360 | Anthropology | 60 | 2.9K | 235 | 105 |
| 361 | Urology | 57 | 2.9K | 272 | 198 |
| 362 | Cardiovascular diseases | 67 | 2.9K | 214 | 148 |
| 363 | Environmental Law | 36 | 2.9K | 169 | 143 |
| 364 | mathematical analysis | 120 | 2.9K | 218 | 121 |
| 365 | Palliative Care | 84 | 2.9K | 37 | 37 |
| 366 | Signal Transduction | 46 | 2.8K | 186 | 189 |
| 366 | Health | 85 | 2.8K | 199 | 199 |
| 368 | computer networks | 108 | 2.8K | 187 | 222 |
| 369 | nanoscience | 80 | 2.8K | 433 | 585 |
| 369 | health planning | 112 | 2.8K | 82 | 89 |
| 371 | Public Administration | 124 | 2.8K | 72 | 106 |
| 372 | Genetic therapy | 32 | 2.8K | 203 | 107 |
| 373 | Teaching | 71 | 2.8K | 183 | 137 |
| 374 | viruses | 41 | 2.8K | 300 | 263 |
| 375 | Environmental Microbiology | 40 | 2.8K | 192 | 179 |
| 376 | finance | 109 | 2.8K | 194 | 267 |
| 377 | Medical Ethics | 85 | 2.8K | 83 | 30 |
| 378 | Conservation Biology | 50 | 2.8K | 123 | 119 |
| 379 | Clinical Chemistry | 83 | 2.7K | 363 | 402 |
| 380 | Health Education | 110 | 2.7K | 163 | 174 |
| 381 | Australia | 101 | 2.7K | 102 | 82 |
| 382 | Tourism | 33 | 2.7K | 310 | 210 |
| 383 | Renewable Energy Sources | 42 | 2.7K | 494 | 567 |
| 384 | Respiration | 56 | 2.7K | 217 | 189 |
| 385 | Water pollution | 60 | 2.7K | 461 | 477 |
| 386 | health services accessibility | 88 | 2.7K | 37 | 43 |
| 387 | plant communities | 37 | 2.6K | 202 | 170 |
| 388 | Oncology | 35 | 2.6K | 453 | 559 |
| 389 | Engineering Mathematics | 69 | 2.6K | 185 | 100 |
| 390 | Clinical Pharmacology | 46 | 2.6K | 178 | 87 |
| 391 | Industrial Engineering | 17 | 2.6K | 671 | 190 |
| 391 | Bioethics | 82 | 2.6K | 62 | 18 |
| 393 | Ethics | 75 | 2.6K | 34 | 12 |
| 394 | Developmental Psychology | 55 | 2.6K | 147 | 145 |
| 395 | Radiation | 43 | 2.6K | 382 | 124 |
| 396 | medical education | 138 | 2.5K | 137 | 191 |
| 397 | Control Theory | 73 | 2.5K | 227 | 176 |
| 398 | Computer Graphics | 72 | 2.5K | 198 | 195 |
| 399 | Methodology | 17 | 2.5K | 52 | 8 |
| 400 | infection | 58 | 2.5K | 203 | 206 |
| 401 | Medical Oncology | 42 | 2.4K | 325 | 259 |
| 402 | Immunogenetics | 53 | 2.4K | 38 | 27 |
| 403 | Electrochemical Analysis | 97 | 2.4K | 84 | 122 |
| 404 | Carcinogenesis | 42 | 2.3K | 107 | 84 |
| 404 | social science | 16 | 2.3K | 21 | 5 |
| 406 | Environmental Management | 82 | 2.3K | 289 | 521 |
| 407 | ecosystem | 52 | 2.3K | 150 | 189 |
| 408 | Engineering Geology | 80 | 2.3K | 115 | 164 |
| 409 | proteins | 56 | 2.3K | 307 | 264 |
| 410 | Experimental Psychology | 33 | 2.3K | 95 | 79 |
| 411 | Hormones | 59 | 2.3K | 147 | 166 |
| 412 | Kidney diseases | 57 | 2.3K | 82 | 83 |
| 413 | carcinogens | 36 | 2.3K | 126 | 83 |
| 414 | Social policy | 88 | 2.2K | 27 | 32 |
| 415 | Fiber Optics | 63 | 2.2K | 107 | 89 |
| 416 | Language Disorders | 51 | 2.2K | 123 | 68 |
| 417 | mutagens | 34 | 2.2K | 106 | 81 |
| 418 | Immunopathology | 76 | 2.2K | 117 | 158 |
| 419 | emergency management | 41 | 2.2K | 23 | 18 |
| 419 | lasers | 100 | 2.2K | 203 | 199 |
| 421 | miniaturization | 41 | 2.2K | 371 | 424 |
| 422 | Biogeography | 38 | 2.2K | 157 | 173 |
| 423 | Neurosurgery | 35 | 2.2K | 163 | 98 |
| 424 | Wireless Communication Systems | 102 | 2.2K | 253 | 326 |
| 425 | Social Change | 27 | 2.2K | 141 | 109 |
| 426 | Pregnancy | 43 | 2.1K | 77 | 38 |
| 427 | Production Management | 36 | 2.1K | 204 | 239 |
| 428 | cell interaction | 30 | 2.1K | 168 | 63 |
| 429 | Autism | 49 | 2.1K | 80 | 93 |
| 430 | organization | 48 | 2.1K | 77 | 186 |
| 431 | disease vectors | 50 | 2.1K | 72 | 69 |
| 432 | Environmental Chemistry | 27 | 2.1K | 488 | 421 |
| 433 | Mass Spectrometry | 60 | 2.1K | 105 | 118 |
| 434 | Seismology | 43 | 2.1K | 55 | 38 |
| 435 | Algae | 48 | 2.1K | 86 | 67 |
| 436 | Clinical Psychology | 62 | 2.0K | 185 | 269 |
| 437 | Mental Health | 96 | 2.0K | 114 | 146 |
| 438 | Infections | 44 | 2.0K | 162 | 182 |
| 439 | Welfare Economics | 45 | 2.0K | 23 | 29 |
| 440 | drugs | 42 | 2.0K | 361 | 236 |
| 441 | Soil Science | 50 | 2.0K | 276 | 269 |
| 442 | Substance Abuse | 75 | 2.0K | 159 | 176 |
| 443 | International Finance | 55 | 1.9K | 193 | 163 |
| 444 | Mechanics | 54 | 1.9K | 129 | 79 |
| 445 | Medical Physics | 47 | 1.9K | 344 | 309 |
| 445 | Sleep | 47 | 1.9K | 267 | 212 |
| 447 | Sleep Disorders | 46 | 1.9K | 273 | 212 |
| 448 | Intellectual disability | 72 | 1.9K | 61 | 87 |
| 449 | Nephrology | 33 | 1.9K | 94 | 79 |
| 450 | Social welfare | 103 | 1.9K | 8 | 15 |
| 451 | Immunotherapy | 23 | 1.9K | 503 | 348 |
| 452 | Radiology | 39 | 1.9K | 233 | 89 |
| 453 | herbicides | 41 | 1.9K | 19 | 10 |
| 454 | Nanostructures | 36 | 1.9K | 365 | 348 |
| 455 | Nanoparticles | 51 | 1.8K | 246 | 280 |
| 456 | Bone diseases | 22 | 1.8K | 71 | 72 |
| 456 | fertility | 39 | 1.8K | 185 | 192 |
| 458 | protein | 43 | 1.8K | 171 | 171 |
| 459 | Microwaves | 95 | 1.8K | 141 | 167 |
| 460 | Orthopedics | 50 | 1.8K | 272 | 211 |
| 461 | Developmental Disabilities | 38 | 1.8K | 180 | 175 |
| 462 | Chemotherapy | 31 | 1.8K | 300 | 157 |
| 463 | Immune system | 24 | 1.8K | 239 | 308 |
| 464 | sanitation | 41 | 1.8K | 322 | 476 |
| 464 | Memory disorders | 24 | 1.8K | 18 | 6 |
| 466 | Stem cells | 36 | 1.8K | 303 | 278 |
| 467 | hazard mitigation | 38 | 1.8K | 58 | 36 |
| 468 | Transportation | 49 | 1.8K | 297 | 276 |
| 469 | animals | 75 | 1.8K | 72 | 70 |
| 469 | biological factors | 29 | 1.8K | 436 | 248 |
| 471 | Adolescent Medicine | 18 | 1.8K | 142 | 114 |
| 472 | Geographic information systems | 64 | 1.8K | 49 | 31 |
| 473 | gene mapping | 33 | 1.8K | 430 | 387 |
| 474 | risk factors | 42 | 1.8K | 74 | 70 |
| 475 | Soil biology | 43 | 1.8K | 142 | 218 |
| 476 | Linguistics | 54 | 1.8K | 216 | 166 |
| 477 | Speech | 30 | 1.8K | 196 | 113 |
| 478 | Molecular cloning | 31 | 1.7K | 249 | 147 |
| 478 | Genetic recombination | 31 | 1.7K | 242 | 147 |
| 478 | Recombinant DNA | 31 | 1.7K | 282 | 164 |
| 481 | Human evolution | 22 | 1.7K | 99 | 73 |
| 482 | Ultrasonic Imaging | 34 | 1.7K | 43 | 11 |
| 483 | Water quality management | 34 | 1.7K | 335 | 160 |
| 484 | Microelectronics | 32 | 1.7K | 472 | 413 |
| 485 | Volcanology | 30 | 1.7K | 1 | 1 |
| 486 | drug control | 69 | 1.7K | 22 | 28 |
| 487 | sustainability | 20 | 1.7K | 176 | 141 |
| 488 | Hydrodynamics | 21 | 1.7K | 145 | 66 |
| 489 | Plasma devices | 7 | 1.7K | 174 | 45 |
| 490 | Neuropsychiatry | 39 | 1.7K | 105 | 90 |
| 491 | Political Geography | 56 | 1.7K | 6 | 13 |
| 491 | Cryptography | 29 | 1.7K | 64 | 14 |
| 493 | Intelligent Transportation Systems | 32 | 1.7K | 194 | 164 |
| 494 | educational planning | 25 | 1.7K | 44 | 21 |
| 495 | global environmental change | 24 | 1.7K | 153 | 143 |
| 496 | Osteoporosis | 20 | 1.6K | 34 | 14 |
| 497 | Natural resources | 20 | 1.6K | 190 | 102 |
| 498 | natural products | 26 | 1.6K | 474 | 210 |
| 498 | Primates | 42 | 1.6K | 85 | 63 |
| 500 | Birds | 50 | 1.6K | 193 | 119 |
| 501 | Molecular Pharmacology | 26 | 1.6K | 164 | 123 |
| 502 | Chromosome mapping | 28 | 1.6K | 434 | 336 |
| 503 | Animal breeding | 48 | 1.6K | 109 | 76 |
| 504 | Cerebral cortex | 43 | 1.6K | 153 | 212 |
| 505 | Neonatology | 45 | 1.6K | 29 | 30 |
| 506 | Energy Policy | 36 | 1.6K | 639 | 685 |
| 507 | human development | 46 | 1.6K | 88 | 120 |
| 508 | Numerical Analysis | 68 | 1.6K | 289 | 262 |
| 509 | Drug delivery systems | 18 | 1.6K | 512 | 289 |
| 510 | Animal genetics | 44 | 1.6K | 84 | 77 |
| 511 | Feasibility studies | 76 | 1.6K | 3 | 7 |
| 512 | Disease | 4 | 1.6K | 249 | 239 |
| 513 | Ethnology | 53 | 1.6K | 154 | 86 |
| 514 | complementary therapies | 61 | 1.5K | 108 | 117 |
| 515 | Child welfare | 74 | 1.5K | 77 | 101 |
| 516 | Alternative Medicine | 57 | 1.5K | 104 | 117 |
| 517 | Africa | 100 | 1.5K | 65 | 69 |
| 517 | Hearing | 30 | 1.5K | 154 | 81 |
| 519 | Solid State Chemistry | 62 | 1.5K | 450 | 408 |
| 520 | Sedimentary rocks | 25 | 1.5K | 80 | 43 |
| 521 | Optical Communications | 59 | 1.5K | 58 | 47 |
| 522 | Antigens | 49 | 1.5K | 73 | 79 |
| 523 | diseases | 2 | 1.5K | 410 | 249 |
| 524 | Liver diseases | 20 | 1.5K | 486 | 445 |
| 525 | Infertility | 26 | 1.5K | 223 | 214 |
| 526 | Seaweed | 28 | 1.5K | 102 | 77 |
| 527 | Carbon | 36 | 1.5K | 202 | 324 |
| 528 | Hydrogeology | 29 | 1.5K | 83 | 37 |
| 529 | Animal Nutrition | 40 | 1.5K | 85 | 63 |
| 530 | radiative transfer | 9 | 1.5K | 313 | 65 |
| 531 | Radiography | 7 | 1.5K | 417 | 199 |
| 532 | Adolescent Psychology | 63 | 1.5K | 63 | 135 |
| 533 | Economic Assistance | 27 | 1.5K | 111 | 116 |
| 534 | energy conservation | 29 | 1.5K | 475 | 532 |
| 535 | industrial relations | 59 | 1.4K | 79 | 71 |
| 536 | Plastics | 28 | 1.4K | 404 | 194 |
| 537 | Rural Development | 33 | 1.4K | 34 | 39 |
| 538 | Health insurance | 6 | 1.4K | 258 | 81 |
| 539 | atmosphere | 46 | 1.4K | 60 | 64 |
| 540 | violence | 29 | 1.4K | 224 | 164 |
| 541 | Environmental Geology | 44 | 1.4K | 190 | 199 |
| 542 | Process Control | 23 | 1.4K | 201 | 214 |
| 543 | Civil Engineering | 63 | 1.4K | 158 | 91 |
| 543 | Geodynamics | 29 | 1.4K | 235 | 212 |
| 545 | Liposomes | 26 | 1.4K | 62 | 83 |
| 545 | Lipid bilayers | 26 | 1.4K | 57 | 76 |
| 547 | Autoimmunity | 33 | 1.4K | 111 | 143 |
| 548 | Synthetic biology | 30 | 1.4K | 35 | 23 |
| 549 | Operations Research | 42 | 1.4K | 540 | 503 |
| 550 | Pediatric Neurology | 17 | 1.4K | 328 | 328 |
| 550 | Quantum Communication | 22 | 1.4K | 16 | 15 |
| 552 | Knowledge | 62 | 1.4K | 18 | 25 |
| 553 | Solar System | 45 | 1.3K | 152 | 184 |
| 554 | civil service | 33 | 1.3K | 32 | 36 |
| 555 | marketing | 37 | 1.3K | 447 | 521 |
| 556 | Ornithology | 39 | 1.3K | 170 | 99 |
| 556 | Allergy | 18 | 1.3K | 367 | 404 |
| 558 | sexual behavior | 16 | 1.3K | 203 | 93 |
| 559 | Computer Vision | 38 | 1.3K | 173 | 283 |
| 560 | History | 189 | 1.3K | 21 | 27 |
| 561 | probabilities | 105 | 1.3K | 91 | 131 |
| 562 | Asia | 61 | 1.3K | 265 | 250 |
| 563 | Energy Conversion | 14 | 1.3K | 525 | 483 |
| 564 | Autoantibodies | 30 | 1.3K | 63 | 65 |
| 564 | Autoimmune diseases | 30 | 1.3K | 81 | 77 |
| 566 | Social problems | 16 | 1.3K | 190 | 110 |
| 567 | Development | 28 | 1.3K | 140 | 153 |
| 568 | Labor Economics | 17 | 1.2K | 107 | 53 |
| 569 | Land Use Planning | 36 | 1.2K | 26 | 47 |
| 570 | International Education | 35 | 1.2K | 7 | 6 |
| 571 | psychotherapy | 36 | 1.2K | 300 | 328 |
| 571 | Aquaculture | 28 | 1.2K | 388 | 290 |
| 573 | race relations | 94 | 1.2K | 7 | 40 |
| 574 | health behavior | 26 | 1.2K | 208 | 159 |
| 574 | Magnetic Resonance Spectroscopy | 35 | 1.2K | 265 | 193 |
| 576 | Intelligent Control Systems | 32 | 1.2K | 121 | 41 |
| 576 | Molecular Spectroscopy | 52 | 1.2K | 216 | 241 |
| 578 | Cybernetics | 44 | 1.2K | 276 | 385 |
| 578 | Detectors | 19 | 1.2K | 484 | 190 |
| 580 | Human Rights | 48 | 1.2K | 28 | 25 |
| 581 | ethnicity | 66 | 1.2K | 16 | 19 |
| 582 | System analysis | 66 | 1.2K | 295 | 446 |
| 583 | Mental Health Services | 52 | 1.2K | 156 | 190 |
| 584 | Multimedia Systems | 30 | 1.2K | 394 | 216 |
| 585 | Organizational Sociology | 35 | 1.1K | 24 | 27 |
| 586 | counseling | 41 | 1.1K | 262 | 253 |
| 587 | Proteomics | 12 | 1.1K | 456 | 213 |
| 587 | China | 62 | 1.1K | 422 | 466 |
| 589 | Algebra | 88 | 1.1K | 124 | 105 |
| 590 | Socialism | 36 | 1.1K | 7 | 3 |
| 591 | Genetic regulation | 25 | 1.1K | 256 | 316 |
| 592 | Oxidative stress | 9 | 1.1K | 386 | 202 |
| 593 | Psychoneuroimmunology | 26 | 1.1K | 101 | 145 |
| 593 | Neuroimmunology | 26 | 1.1K | 121 | 164 |
| 595 | Liquid Crystals | 50 | 1.1K | 114 | 43 |
| 596 | older people | 30 | 1.1K | 385 | 208 |
| 597 | Culture | 68 | 1.1K | 95 | 100 |
| 598 | Population | 27 | 1.1K | 152 | 140 |
| 599 | Geriatric Psychiatry | 31 | 1.1K | 153 | 135 |
| 600 | Transgenic plants | 7 | 1.1K | 206 | 44 |
| 601 | Law | 140 | 1.1K | 39 | 90 |
| 602 | Morphology | 24 | 1.1K | 187 | 102 |
| 603 | Lipids | 25 | 1.1K | 309 | 333 |
| 604 | Health Services Administration | 15 | 1.1K | 313 | 136 |
| 604 | Educational Sociology | 39 | 1.1K | 15 | 6 |
| 604 | Drug design | 21 | 1.1K | 404 | 269 |
| 604 | Learning disabilities | 58 | 1.1K | 98 | 148 |
| 604 | world | 13 | 1.1K | 255 | 181 |
| 609 | Transplantation | 28 | 1.1K | 273 | 308 |
| 610 | Comparative Education | 37 | 1.1K | 6 | 3 |
| 611 | Electrical Engineering | 197 | 1.1K | 195 | 527 |
| 612 | Bacteria | 14 | 1.1K | 77 | 72 |
| 613 | Pharmacogenetics | 20 | 1.1K | 233 | 198 |
| 614 | Women's health | 33 | 1.1K | 196 | 156 |
| 615 | energy resources | 16 | 1.1K | 481 | 481 |
| 616 | enzymes | 32 | 1.1K | 315 | 323 |
| 617 | Fluid Dynamics | 46 | 1.1K | 157 | 205 |
| 618 | Petroleum Geology | 25 | 1.1K | 102 | 87 |
| 619 | Elections | 65 | 1.1K | 9 | 38 |
| 620 | Biopharmaceutics | 21 | 1.1K | 262 | 204 |
| 621 | Plant breeding | 6 | 1.0K | 500 | 95 |
| 622 | Aerosols | 41 | 1.0K | 73 | 93 |
| 623 | Criminology | 38 | 1.0K | 191 | 192 |
| 624 | Phylogeny | 18 | 1.0K | 245 | 190 |
| 625 | Cellular senescence | 5 | 1.0K | 151 | 51 |
| 626 | Microorganisms | 10 | 1.0K | 481 | 306 |
| 627 | Antibodies | 38 | 1.0K | 45 | 81 |
| 628 | Thermodynamics | 75 | 1.0K | 54 | 91 |
| 629 | Housing | 49 | 1.0K | 28 | 59 |
| 630 | Economic Geography | 49 | 1.0K | 15 | 34 |
| 631 | Anxiety Disorders | 13 | 1.0K | 185 | 174 |
| 631 | Anxiety | 13 | 1.0K | 185 | 172 |
| 633 | Marine Geology | 24 | 1.0K | 119 | 83 |
| 633 | Thermochemistry | 71 | 1.0K | 22 | 55 |
| 635 | Cell metabolism | 7 | 1.0K | 346 | 326 |
| 636 | Remote Sensing | 42 | 987 | 192 | 163 |
| 637 | Information Systems | 41 | 984 | 143 | 202 |
| 638 | Endocrine glands | 12 | 974 | 58 | 77 |
| 639 | Homeostasis | 5 | 973 | 273 | 321 |
| 640 | Crystallography | 53 | 962 | 258 | 198 |
| 641 | mass transfer | 29 | 960 | 498 | 485 |
| 642 | calcification | 25 | 959 | 82 | 101 |
| 643 | Coding Theory | 14 | 957 | 98 | 7 |
| 644 | Demography | 23 | 952 | 129 | 126 |
| 645 | Medical Technology | 19 | 949 | 447 | 286 |
| 646 | Earthquakes | 29 | 947 | 59 | 43 |
| 647 | Bifurcation Theory | 36 | 942 | 4 | 16 |
| 648 | Ergonomics | 25 | 941 | 250 | 169 |
| 649 | Jurisprudence | 111 | 939 | 33 | 129 |
| 650 | concrete | 13 | 934 | 388 | 331 |
| 651 | Astrocytes | 14 | 930 | 139 | 150 |
| 652 | nuclear magnetic resonance | 26 | 928 | 310 | 221 |
| 653 | speech therapy | 27 | 925 | 75 | 50 |
| 654 | Data Mining | 30 | 913 | 113 | 174 |
| 654 | adolescence | 21 | 913 | 258 | 258 |
| 654 | Plant hormones | 38 | 913 | 11 | 31 |
| 657 | disarmament | 22 | 910 | 16 | 15 |
| 658 | Human biology | 20 | 908 | 137 | 65 |
| 659 | fuel cells | 15 | 902 | 517 | 471 |
| 660 | Paleobiology | 36 | 898 | 20 | 4 |
| 660 | children | 46 | 898 | 19 | 100 |
| 662 | Environmental Toxicology | 19 | 892 | 831 | 771 |
| 663 | Human-Computer Interaction | 45 | 891 | 149 | 307 |
| 663 | Patient education | 24 | 891 | 132 | 150 |
| 665 | animal diseases | 27 | 878 | 85 | 64 |
| 666 | Photography | 202 | 876 | 119 | 96 |
| 667 | Nonlinear systems | 13 | 871 | 214 | 82 |
| 668 | Suicide | 34 | 866 | 53 | 82 |
| 669 | family violence | 19 | 864 | 83 | 79 |
| 670 | Biomass Energy | 14 | 860 | 1,109 | 965 |
| 671 | Industrial Microbiology | 17 | 859 | 688 | 641 |
| 672 | Depression | 7 | 858 | 165 | 120 |
| 673 | Decision making | 28 | 857 | 306 | 347 |
| 674 | Communication Disorders | 23 | 849 | 33 | 23 |
| 675 | Bioinorganic chemistry | 30 | 846 | 378 | 344 |
| 676 | Geotechnical Engineering | 42 | 843 | 73 | 115 |
| 677 | Building Materials | 36 | 842 | 430 | 725 |
| 677 | Microcirculation | 17 | 842 | 99 | 64 |
| 679 | Technological Innovations | 25 | 841 | 149 | 171 |
| 680 | Diplomatic relations | 65 | 840 | 51 | 26 |
| 681 | Radiobiology | 19 | 839 | 423 | 356 |
| 681 | commerce | 35 | 839 | 228 | 412 |
| 683 | Applied Sciences | 3 | 837 | 18 | 10 |
| 683 | Applied Mechanics | 3 | 837 | 18 | 10 |
| 685 | Eating Disorders | 32 | 834 | 160 | 214 |
| 686 | freshwater biology | 21 | 831 | 206 | 191 |
| 687 | Leukemia | 4 | 830 | 657 | 359 |
| 688 | Animal welfare | 18 | 828 | 30 | 25 |
| 689 | cloning | 14 | 821 | 188 | 234 |
| 690 | Biosensors | 14 | 819 | 529 | 524 |
| 691 | Cerebellum | 14 | 814 | 60 | 60 |
| 691 | Informatics | 32 | 814 | 88 | 164 |
| 691 | Cerebellar ataxia | 14 | 814 | 60 | 60 |
| 694 | Bacterial infections | 13 | 812 | 270 | 313 |
| 695 | Environmental pollutants | 21 | 808 | 701 | 682 |
| 696 | Educational Technology | 52 | 806 | 133 | 343 |
| 697 | Semiconductors | 55 | 804 | 315 | 390 |
| 698 | women | 33 | 800 | 93 | 47 |
| 699 | Mathematical Economics | 5 | 798 | 221 | 112 |
| 699 | Production Planning | 7 | 798 | 118 | 39 |
| 699 | Production Control | 7 | 798 | 117 | 39 |
| 702 | Antibacterial agents | 14 | 797 | 172 | 111 |
| 703 | Nuclear Engineering | 45 | 795 | 295 | 259 |
| 703 | Gerontology | 34 | 795 | 437 | 416 |
| 703 | breastfeeding | 19 | 795 | 85 | 48 |
| 703 | collagen | 11 | 795 | 78 | 76 |
| 707 | Feminist theory | 27 | 793 | 8 | 10 |
| 708 | Insects | 27 | 792 | 334 | 307 |
| 709 | biomimicry | 17 | 781 | 18 | 16 |
| 710 | food technology | 46 | 775 | 492 | 869 |
| 711 | Microeconomics | 13 | 768 | 99 | 73 |
| 712 | Quality Control | 27 | 767 | 333 | 377 |
| 712 | Post-traumatic stress disorder | 25 | 767 | 171 | 221 |
| 714 | Evolutionary Genetics | 18 | 765 | 85 | 62 |
| 714 | Molecular Epidemiology | 18 | 765 | 85 | 62 |
| 716 | Feeding and Eating Disorders | 31 | 762 | 155 | 219 |
| 717 | free radicals | 17 | 759 | 473 | 559 |
| 718 | Production Engineering | 70 | 758 | 231 | 455 |
| 719 | polar regions | 22 | 757 | 132 | 105 |
| 720 | Behavioral Genetics | 18 | 754 | 54 | 57 |
| 720 | cosmic rays | 26 | 754 | 72 | 46 |
| 722 | Industrial Sociology | 25 | 752 | 16 | 29 |
| 723 | Global Health | 41 | 750 | 112 | 139 |
| 723 | Green Chemistry | 21 | 750 | 613 | 766 |
| 723 | Pediatric Rheumatology | 17 | 750 | 46 | 9 |
| 726 | Neural circuitry | 32 | 741 | 443 | 620 |
| 727 | Sociolinguistics | 37 | 740 | 29 | 54 |
| 728 | Organometallic chemistry | 29 | 739 | 550 | 413 |
| 729 | Rock Mechanics | 25 | 738 | 239 | 295 |
| 730 | Hippocampus | 21 | 737 | 42 | 107 |
| 731 | Business Ethics | 15 | 736 | 348 | 484 |
| 732 | Combustion | 26 | 733 | 336 | 348 |
| 733 | Wildlife management | 31 | 731 | 113 | 96 |
| 734 | Number Theory | 85 | 722 | 17 | 29 |
| 735 | visualization | 50 | 719 | 226 | 221 |
| 736 | Ceramic materials | 23 | 715 | 354 | 317 |
| 737 | structural stability | 28 | 714 | 31 | 83 |
| 738 | environmental indicators | 13 | 712 | 423 | 335 |
| 739 | Evolutionary Computation | 6 | 708 | 255 | 179 |
| 740 | Nursing | 11 | 706 | 963 | 357 |
| 740 | Physical Geography | 18 | 706 | 87 | 82 |
| 742 | Family | 61 | 703 | 112 | 242 |
| 743 | Common Law | 104 | 702 | 5 | 9 |
| 743 | pollutants | 14 | 702 | 754 | 639 |
| 745 | Psychosomatic Medicine | 25 | 697 | 165 | 257 |
| 746 | Retina | 8 | 693 | 62 | 133 |
| 746 | Nutrition physiology | 22 | 693 | 146 | 203 |
| 748 | Europa | 19 | 692 | 109 | 100 |
| 748 | language | 23 | 692 | 203 | 238 |
| 750 | eye | 7 | 689 | 89 | 136 |
| 751 | Genetic algorithms | 5 | 688 | 211 | 150 |
| 752 | X-rays | 19 | 687 | 97 | 35 |
| 753 | peace | 17 | 686 | 136 | 141 |
| 754 | Vaccination | 8 | 684 | 78 | 22 |
| 754 | mycoses | 9 | 684 | 379 | 349 |
| 756 | nursing ethics | 7 | 682 | 100 | 21 |
| 757 | Bioelectronics | 12 | 679 | 467 | 524 |
| 758 | Photochemistry | 27 | 677 | 401 | 477 |
| 758 | Genetic translocation | 14 | 677 | 21 | 24 |
| 758 | plasmids | 14 | 677 | 21 | 24 |
| 761 | Development Economics | 5 | 670 | 271 | 65 |
| 762 | Gene expression regulation | 23 | 669 | 201 | 308 |
| 762 | blood transfusion | 15 | 669 | 212 | 143 |
| 764 | Higher Education | 22 | 667 | 117 | 87 |
| 764 | Proteome | 13 | 667 | 475 | 428 |
| 766 | actuators | 23 | 666 | 728 | 847 |
| 766 | transducers | 23 | 666 | 728 | 847 |
| 768 | Wind power | 12 | 665 | 67 | 32 |
| 769 | Game Theory | 13 | 663 | 207 | 116 |
| 769 | Minerals | 18 | 663 | 142 | 115 |
| 771 | Extracellular matrix | 10 | 659 | 79 | 93 |
| 772 | brain mapping | 11 | 657 | 276 | 262 |
| 773 | Quantum Optics | 23 | 653 | 231 | 183 |
| 774 | psychopathology | 36 | 651 | 33 | 119 |
| 774 | Fuzzy systems | 33 | 651 | 235 | 214 |
| 776 | Nationalism | 33 | 649 | 16 | 11 |
| 777 | Histochemistry | 18 | 644 | 331 | 260 |
| 778 | Surface properties | 11 | 639 | 499 | 357 |
| 778 | data protection | 20 | 639 | 46 | 57 |
| 780 | Gender identity | 21 | 633 | 26 | 7 |
| 780 | crime | 21 | 633 | 190 | 177 |
| 782 | Ethnic relations | 56 | 629 | 12 | 55 |
| 782 | Fisheries | 25 | 629 | 437 | 493 |
| 784 | Comparative Psychology | 7 | 627 | 53 | 44 |
| 785 | Phonetics | 8 | 626 | 172 | 75 |
| 786 | Mobile Computing | 31 | 624 | 197 | 296 |
| 786 | Nonlinear mechanics | 13 | 624 | 116 | 54 |
| 788 | nuclear magnetic resonance spectroscopy | 19 | 622 | 203 | 153 |
| 788 | Relationships | 7 | 622 | 74 | 37 |
| 788 | sex crimes | 15 | 622 | 206 | 134 |
| 791 | Interactive multimedia | 15 | 621 | 164 | 152 |
| 792 | multimedia | 13 | 612 | 177 | 151 |
| 793 | Dietetics | 24 | 610 | 165 | 173 |
| 794 | Forest Ecology | 18 | 605 | 341 | 376 |
| 794 | Surface-Active Agents | 10 | 605 | 504 | 332 |
| 796 | Humanities | 32 | 600 | 241 | 204 |
| 797 | Tribology | 17 | 594 | 409 | 324 |
| 797 | Atomic spectroscopy | 24 | 594 | 320 | 304 |
| 799 | Thorax | 15 | 592 | 139 | 143 |
| 800 | Geobiology | 19 | 591 | 93 | 105 |
| 801 | Audiology | 37 | 588 | 144 | 216 |
| 801 | health services | 25 | 588 | 240 | 269 |
| 803 | plasticity | 7 | 586 | 192 | 162 |
| 804 | rare diseases | 8 | 585 | 297 | 166 |
| 805 | Emotions | 23 | 583 | 144 | 265 |
| 806 | Political Participation | 27 | 581 | 36 | 75 |
| 807 | ethanol | 21 | 579 | 102 | 110 |
| 808 | World Bank | 4 | 578 | 22 | 12 |
| 809 | Political Sociology | 21 | 576 | 97 | 120 |
| 810 | Ethnic Conflict | 49 | 575 | 6 | 44 |
| 810 | forced migration | 49 | 575 | 6 | 44 |
| 812 | Community Psychology | 12 | 572 | 228 | 216 |
| 813 | bats | 25 | 571 | 3 | 2 |
| 814 | Investment analysis | 12 | 570 | 296 | 172 |
| 815 | Marine Pollution | 13 | 569 | 511 | 482 |
| 816 | Personality Disorders | 7 | 568 | 141 | 78 |
| 817 | cultural pluralism | 18 | 565 | 38 | 31 |
| 818 | European integration | 31 | 564 | 16 | 57 |
| 818 | European Economic Community | 31 | 564 | 16 | 57 |
| 820 | Emergency Medicine | 29 | 556 | 307 | 311 |
| 821 | Feminism | 40 | 554 | 40 | 103 |
| 822 | clay | 10 | 551 | 350 | 271 |
| 823 | Scandinavia | 16 | 550 | 159 | 128 |
| 824 | Globalization | 29 | 549 | 49 | 105 |
| 825 | X-ray crystallography | 20 | 545 | 142 | 93 |
| 826 | cell movement | 12 | 544 | 61 | 71 |
| 827 | Computer-Aided Design | 29 | 543 | 243 | 340 |
| 828 | Emergency Medical Services | 27 | 541 | 91 | 92 |
| 828 | Cement | 6 | 541 | 379 | 323 |
| 828 | Yeast | 5 | 541 | 287 | 127 |
| 831 | Multilingualism | 13 | 537 | 49 | 30 |
| 832 | Social perception | 6 | 534 | 77 | 43 |
| 832 | population geography | 20 | 534 | 52 | 72 |
| 834 | Telecommunication Systems | 41 | 527 | 222 | 387 |
| 835 | Mathematics Education | 24 | 525 | 60 | 63 |
| 836 | internet | 24 | 524 | 402 | 569 |
| 837 | Land use | 25 | 523 | 201 | 387 |
| 838 | Analytical Biochemistry | 19 | 521 | 542 | 553 |
| 839 | election law | 24 | 520 | 33 | 67 |
| 839 | Laser Spectroscopy | 20 | 520 | 222 | 199 |
| 841 | foreign policy | 50 | 518 | 34 | 15 |
| 842 | drug abuse | 24 | 517 | 128 | 140 |
| 843 | ethnic groups | 27 | 516 | 28 | 60 |
| 844 | Functional Analysis | 46 | 514 | 202 | 372 |
| 844 | Forecasting | 13 | 514 | 140 | 134 |
| 844 | particles | 11 | 514 | 387 | 197 |
| 844 | administrative agencies | 11 | 514 | 104 | 58 |
| 844 | impact | 9 | 514 | 141 | 110 |
| 849 | Elderly | 18 | 511 | 420 | 200 |
| 850 | Voting | 24 | 510 | 31 | 67 |
| 851 | Logistics | 9 | 508 | 233 | 198 |
| 852 | labor | 10 | 504 | 107 | 75 |
| 852 | working class | 10 | 504 | 51 | 70 |
| 852 | biological monitoring | 9 | 504 | 184 | 109 |
| 855 | Forest Management | 15 | 501 | 363 | 392 |
| 856 | occupational diseases | 19 | 499 | 195 | 267 |
| 856 | Public opinion | 23 | 499 | 57 | 109 |
| 858 | Clinical Trials | 15 | 498 | 134 | 115 |
| 858 | Sustainable Engineering | 16 | 498 | 636 | 746 |
| 860 | Political Parties | 23 | 497 | 16 | 42 |
| 861 | Qualitative Research | 29 | 496 | 65 | 146 |
| 862 | Forensic Psychiatry | 26 | 493 | 103 | 121 |
| 863 | Hydrometeorology | 8 | 491 | 94 | 112 |
| 864 | Clinical Immunology | 17 | 487 | 380 | 430 |
| 865 | Database Management | 11 | 486 | 368 | 284 |
| 866 | biological invasions | 13 | 484 | 186 | 189 |
| 867 | Functional Genomics | 11 | 482 | 78 | 89 |
| 868 | Special Education | 24 | 481 | 194 | 204 |
| 868 | Rheology | 18 | 481 | 150 | 171 |
| 868 | Marine resources | 5 | 481 | 467 | 172 |
| 871 | Socioeconomic Factors | 22 | 479 | 152 | 223 |
| 872 | Simulation Methods | 9 | 477 | 474 | 154 |
| 872 | international trade | 13 | 477 | 200 | 187 |
| 874 | Coastal zone management | 4 | 476 | 555 | 167 |
| 875 | Adoption | 42 | 473 | 2 | 3 |
| 875 | harm reduction | 20 | 473 | 24 | 31 |
| 877 | Superconductors | 26 | 471 | 257 | 219 |
| 878 | Diagnostic Imaging | 21 | 466 | 567 | 663 |
| 878 | Paleopathology | 9 | 466 | 118 | 34 |
| 880 | Mechatronics | 22 | 465 | 200 | 296 |
| 880 | Geriatric Pharmacology | 8 | 465 | 128 | 60 |
| 882 | Mining Engineering | 3 | 462 | 515 | 183 |
| 883 | Granular materials | 10 | 461 | 208 | 124 |
| 884 | Travel | 23 | 459 | 140 | 167 |
| 884 | pain management | 32 | 459 | 76 | 166 |
| 886 | reasoning | 20 | 457 | 36 | 67 |
| 886 | remote sensing technology | 16 | 457 | 1 | 9 |
| 888 | Software Engineering | 20 | 455 | 315 | 365 |
| 888 | Criminal psychology | 21 | 455 | 236 | 285 |
| 890 | Chemical Oceanography | 9 | 454 | 126 | 131 |
| 891 | Chemical Ecology | 13 | 447 | 176 | 205 |
| 891 | epidemiologic methods | 7 | 447 | 56 | 10 |
| 893 | Water Microbiology | 14 | 446 | 59 | 87 |
| 894 | curriculum evaluation | 18 | 442 | 65 | 72 |
| 894 | Steroids | 8 | 442 | 504 | 330 |
| 896 | Communication in medicine | 11 | 441 | 220 | 165 |
| 897 | Neurolinguistics | 8 | 437 | 234 | 200 |
| 898 | Social History | 32 | 434 | 33 | 62 |
| 899 | Stochastic Processes | 14 | 432 | 315 | 179 |
| 899 | synthesis | 13 | 432 | 395 | 147 |
| 901 | Protozoa | 8 | 431 | 194 | 137 |
| 902 | Cytoskeleton | 10 | 430 | 97 | 87 |
| 902 | pheromones | 12 | 430 | 161 | 198 |
| 904 | Multicultural Education | 13 | 429 | 94 | 62 |
| 904 | local government | 37 | 429 | 15 | 104 |
| 906 | Psychometrics | 13 | 427 | 183 | 187 |
| 907 | national security | 12 | 425 | 110 | 21 |
| 908 | biocatalysis | 7 | 423 | 66 | 227 |
| 908 | Homogeneous catalysis | 7 | 423 | 66 | 227 |
| 908 | Heterogeneous catalysis | 7 | 423 | 66 | 227 |
| 911 | Social Ethics | 10 | 419 | 53 | 6 |
| 912 | Solar Energy | 5 | 417 | 1,376 | 874 |
| 913 | Thin Films | 4 | 413 | 438 | 76 |
| 913 | extraterrestrial environment | 17 | 413 | 132 | 118 |
| 913 | astronomical phenomena | 17 | 413 | 117 | 109 |
| 916 | Medical Imaging | 18 | 412 | 76 | 95 |
| 916 | Magnetic Resonance Imaging | 18 | 412 | 108 | 139 |
| 916 | Geodesy | 12 | 412 | 235 | 184 |
| 919 | Statistical Mechanics | 25 | 411 | 149 | 191 |
| 919 | Pesticides | 15 | 411 | 154 | 130 |
| 921 | Crystal growth | 17 | 408 | 346 | 406 |
| 921 | chromatin | 2 | 408 | 160 | 50 |
| 923 | Energy Consumption | 8 | 407 | 172 | 199 |
| 923 | community participation | 18 | 407 | 15 | 23 |
| 923 | Faculty | 18 | 407 | 15 | 23 |
| 923 | gene transfer | 7 | 407 | 99 | 50 |
| 923 | genetic transformation | 7 | 407 | 99 | 50 |
| 928 | Drug discovery | 5 | 406 | 126 | 56 |
| 929 | men | 6 | 404 | 128 | 39 |
| 929 | masculinity | 5 | 404 | 23 | 10 |
| 931 | exobiology | 9 | 403 | 107 | 147 |
| 931 | Continental shelf | 5 | 403 | 258 | 151 |
| 933 | Crisis Intervention | 19 | 402 | 17 | 33 |
| 934 | Oxidation-reduction | 12 | 393 | 316 | 548 |
| 935 | Neuropharmacology | 9 | 391 | 288 | 231 |
| 935 | disabilities | 11 | 391 | 281 | 219 |
| 937 | elder abuse | 8 | 390 | 150 | 104 |
| 938 | Logic | 30 | 389 | 51 | 81 |
| 938 | Urban Geography | 26 | 389 | 23 | 64 |
| 940 | brewing | 15 | 388 | 40 | 35 |
| 941 | Applied Linguistics | 15 | 387 | 176 | 152 |
| 942 | Fermentation | 14 | 385 | 61 | 48 |
| 943 | Materials Engineering | 23 | 382 | 83 | 101 |
| 944 | government | 13 | 381 | 230 | 222 |
| 945 | Antioxidants | 9 | 380 | 365 | 473 |
| 946 | Superconductivity | 18 | 379 | 117 | 116 |
| 947 | Electromagnetism | 10 | 376 | 529 | 365 |
| 948 | Eastern Europe | 27 | 375 | 100 | 104 |
| 949 | Computational Chemistry | 11 | 372 | 284 | 309 |
| 950 | Biomass | 6 | 371 | 400 | 306 |
| 951 | Pharmaceutical Technology | 10 | 370 | 822 | 728 |
| 952 | Andrology | 6 | 369 | 386 | 197 |
| 952 | Industrial Safety | 12 | 369 | 462 | 435 |
| 954 | economic conditions | 10 | 367 | 215 | 220 |
| 954 | Biomolecules | 7 | 367 | 216 | 225 |
| 956 | Marine Ecology | 12 | 364 | 339 | 261 |
| 956 | Inflammation | 11 | 364 | 453 | 594 |
| 958 | water resources | 8 | 363 | 116 | 60 |
| 958 | Biofilms | 3 | 363 | 160 | 51 |
| 960 | DNA methylation | 12 | 354 | 62 | 122 |
| 961 | Economic Thought | 8 | 353 | 137 | 201 |
| 961 | Eurasia | 7 | 353 | 82 | 27 |
| 963 | Internet of Things | 18 | 351 | 365 | 596 |
| 963 | Ecosystem management | 9 | 351 | 329 | 306 |
| 965 | Genetic Research | 6 | 349 | 66 | 32 |
| 966 | Reading | 15 | 347 | 202 | 235 |
| 967 | investigative techniques | 3 | 344 | 103 | 45 |
| 968 | Building | 5 | 342 | 398 | 161 |
| 969 | kidney | 10 | 339 | 18 | 38 |
| 970 | Quantum Computing | 17 | 336 | 36 | 76 |
| 970 | Corporate governance | 10 | 336 | 178 | 211 |
| 970 | environmental exposure | 18 | 336 | 621 | 1,012 |
| 973 | Dermatology | 20 | 334 | 585 | 712 |
| 973 | Radiation effects | 9 | 334 | 266 | 303 |
| 975 | Urban Policy | 10 | 333 | 365 | 372 |
| 975 | community development | 18 | 333 | 121 | 174 |
| 977 | Magnetic Materials | 15 | 332 | 671 | 754 |
| 978 | urban health | 15 | 331 | 66 | 105 |
| 979 | Consumer education | 4 | 328 | 262 | 139 |
| 980 | Middle East | 16 | 326 | 292 | 222 |
| 981 | hospice care | 17 | 325 | 123 | 128 |
| 981 | Politics | 13 | 325 | 198 | 208 |
| 983 | Energy Storage | 11 | 323 | 604 | 669 |
| 984 | Catalysts | 6 | 322 | 458 | 243 |
| 985 | Catalyst | 5 | 319 | 9 | 30 |
| 986 | Information Retrieval | 12 | 318 | 145 | 212 |
| 986 | Boundary Value Problems | 7 | 318 | 480 | 273 |
| 986 | Antenna Arrays | 7 | 318 | 341 | 245 |
| 989 | Pharmacognosy | 12 | 317 | 885 | 1,098 |
| 990 | Orthopedic Surgery | 12 | 316 | 300 | 294 |
| 991 | Porous materials | 10 | 315 | 294 | 173 |
| 992 | migration policy | 7 | 314 | 98 | 88 |
| 993 | Bioacoustics | 11 | 313 | 10 | 10 |
| 994 | immigration | 6 | 312 | 99 | 86 |
| 994 | Asylum seeker | 6 | 312 | 82 | 86 |
| 996 | Cognitive Psychology | 17 | 310 | 78 | 114 |
| 996 | Product life cycle | 5 | 310 | 179 | 137 |
| 996 | Aggression | 4 | 310 | 402 | 266 |
| 996 | drug evaluation | 6 | 310 | 857 | 563 |
| 1000 | Solitons | 12 | 309 | 476 | 472 |