| 1 | Medicine | 5,655 | 185.9K | 19 | 75 |
| 2 | Science | 3,601 | 153.1K | 54 | 178 |
| 3 | Biology | 3,516 | 127.6K | 53 | 213 |
| 4 | Biochemistry | 3,826 | 124.1K | 47 | 100 |
| 5 | Physics | 2,675 | 118.5K | 124 | 259 |
| 6 | Public Health | 5,258 | 109.8K | 4 | 20 |
| 7 | Research | 2,730 | 88.9K | 37 | 66 |
| 8 | Astrophysics | 1,084 | 78.1K | 100 | 101 |
| 9 | Astronomy | 1,301 | 77.3K | 90 | 94 |
| 10 | Nuclear Physics | 2,827 | 74.9K | 35 | 80 |
| 11 | Molecular Biology | 2,060 | 74.0K | 70 | 190 |
| 12 | Chemistry | 2,032 | 71.8K | 172 | 293 |
| 13 | Microbiology | 1,836 | 68.2K | 42 | 115 |
| 14 | Ecology | 1,387 | 64.1K | 62 | 125 |
| 15 | Neurology | 1,273 | 56.7K | 109 | 163 |
| 16 | Biotechnology | 1,287 | 51.9K | 27 | 76 |
| 17 | Environment | 679 | 50.7K | 68 | 73 |
| 18 | Psychiatry | 1,121 | 49.5K | 38 | 74 |
| 19 | Nutrition | 1,243 | 48.5K | 9 | 19 |
| 20 | Natural history | 636 | 43.2K | 72 | 299 |
| 21 | Pollution | 795 | 42.8K | 64 | 82 |
| 22 | Toxicology | 2,682 | 42.3K | 3 | 14 |
| 23 | Pharmacology | 1,375 | 39.8K | 30 | 66 |
| 24 | Physiology | 1,384 | 38.8K | 21 | 69 |
| 25 | Immunology | 932 | 36.5K | 65 | 138 |
| 26 | Analytical Chemistry | 1,020 | 35.2K | 18 | 25 |
| 27 | Botany | 1,276 | 34.9K | 23 | 93 |
| 28 | Biophysics | 1,170 | 34.9K | 63 | 94 |
| 29 | Electrochemistry | 1,068 | 32.6K | 15 | 12 |
| 30 | Spectrum analysis | 842 | 32.0K | 61 | 111 |
| 31 | Cytology | 728 | 30.9K | 106 | 223 |
| 32 | Cell Biology | 633 | 29.6K | 105 | 229 |
| 33 | environmental pollution | 603 | 27.7K | 42 | 39 |
| 34 | Endocrinology | 984 | 26.8K | 29 | 101 |
| 35 | Psychophysiology | 463 | 25.6K | 81 | 82 |
| 36 | Nursing | 1,955 | 25.4K | 1 | 2 |
| 37 | Brain | 620 | 24.9K | 38 | 55 |
| 38 | Neurophysiology | 660 | 24.8K | 55 | 121 |
| 39 | Metabolism | 763 | 24.4K | 19 | 81 |
| 40 | Epidemiology | 986 | 23.6K | 27 | 71 |
| 41 | Geophysics | 445 | 23.4K | 217 | 145 |
| 42 | Human genetics | 167 | 23.2K | 178 | 254 |
| 43 | Environmental Health | 626 | 22.9K | 85 | 161 |
| 44 | Statistical physics | 1,273 | 22.9K | 13 | 77 |
| 45 | Genetics | 475 | 22.8K | 127 | 201 |
| 46 | Solid State Physics | 990 | 22.1K | 102 | 176 |
| 47 | Quantum Gravity | 886 | 22.1K | 35 | 88 |
| 48 | Surface Chemistry | 656 | 22.0K | 29 | 45 |
| 49 | Parasitology | 682 | 21.8K | 9 | 13 |
| 50 | Condensed Matter | 968 | 21.8K | 95 | 181 |
| 51 | Diet | 347 | 20.8K | 28 | 35 |
| 52 | Colloids | 573 | 20.0K | 46 | 75 |
| 53 | Geology | 906 | 19.9K | 34 | 104 |
| 54 | Catalysis | 558 | 19.7K | 97 | 161 |
| 55 | Bioengineering | 364 | 19.5K | 118 | 185 |
| 56 | Sports Medicine | 839 | 19.3K | 1 | 21 |
| 57 | Medical genetics | 375 | 19.0K | 97 | 142 |
| 58 | Materials | 947 | 19.0K | 161 | 375 |
| 59 | food technology | 408 | 18.9K | 17 | 12 |
| 60 | Food | 462 | 18.6K | 18 | 21 |
| 61 | Marine Biology | 989 | 18.5K | 5 | 36 |
| 62 | Virology | 303 | 17.7K | 154 | 254 |
| 63 | Mental Disorders | 331 | 17.4K | 101 | 111 |
| 64 | Behavior | 457 | 17.4K | 73 | 104 |
| 65 | Earth Sciences | 773 | 16.8K | 12 | 74 |
| 66 | Sports | 728 | 16.5K | 3 | 13 |
| 67 | Biomass Energy | 357 | 16.3K | 17 | 38 |
| 68 | Chemical Engineering | 632 | 16.2K | 111 | 230 |
| 69 | Tropical Medicine | 886 | 16.1K | 3 | 5 |
| 70 | Latin America | 1,412 | 16.0K | 4 | 2 |
| 71 | Meteorology | 264 | 15.7K | 119 | 109 |
| 72 | Bacteriology | 555 | 15.6K | 12 | 74 |
| 73 | Climatology | 318 | 15.4K | 51 | 62 |
| 74 | Polymers | 482 | 15.4K | 197 | 211 |
| 75 | Biomedical Engineering | 570 | 15.4K | 84 | 141 |
| 76 | Biodiversity conservation | 129 | 15.3K | 96 | 70 |
| 77 | Biochemical Engineering | 292 | 15.1K | 97 | 195 |
| 78 | Immunity | 196 | 14.9K | 92 | 166 |
| 79 | Pharmaceutical Chemistry | 458 | 14.5K | 69 | 121 |
| 80 | Health Policy | 835 | 14.0K | 6 | 30 |
| 81 | Mathematics | 1,457 | 13.9K | 55 | 128 |
| 82 | human behavior | 298 | 13.9K | 61 | 96 |
| 83 | Psychology | 1,223 | 13.7K | 50 | 249 |
| 84 | biological evolution | 308 | 13.5K | 42 | 128 |
| 85 | Neuropsychology | 371 | 13.5K | 31 | 52 |
| 86 | Animal Behavior | 330 | 13.2K | 52 | 77 |
| 87 | Parasitic Diseases | 352 | 13.1K | 18 | 28 |
| 88 | Genomics | 321 | 13.1K | 74 | 84 |
| 89 | Atmospheric Physics | 179 | 12.9K | 119 | 84 |
| 90 | Nanotechnology | 333 | 12.8K | 336 | 431 |
| 91 | Soil Science | 279 | 12.5K | 51 | 46 |
| 92 | free radicals | 279 | 12.5K | 3 | 21 |
| 93 | Environmental monitoring | 352 | 12.4K | 38 | 91 |
| 94 | Medical Microbiology | 286 | 12.1K | 35 | 93 |
| 95 | Statistics | 504 | 12.0K | 35 | 84 |
| 96 | Atmospheric Chemistry | 136 | 11.9K | 88 | 67 |
| 97 | Public Health Administration | 774 | 11.9K | 2 | 2 |
| 98 | polymerization | 374 | 11.8K | 195 | 204 |
| 99 | Oncology | 141 | 11.6K | 130 | 157 |
| 100 | Climate change | 45 | 11.4K | 160 | 74 |
| 100 | Eutrophication | 45 | 11.4K | 154 | 74 |
| 102 | Metabolic diseases | 238 | 11.3K | 97 | 157 |
| 103 | Zoology | 745 | 11.2K | 5 | 39 |
| 104 | Biocompatible Materials | 368 | 11.2K | 158 | 296 |
| 105 | Microbial Ecology | 217 | 11.1K | 82 | 151 |
| 106 | Photochemistry | 382 | 11.0K | 2 | 4 |
| 107 | Wildlife conservation | 115 | 10.9K | 42 | 18 |
| 108 | Electrochemical Analysis | 331 | 10.8K | 5 | 6 |
| 109 | Psychopharmacology | 149 | 10.8K | 74 | 66 |
| 110 | Nonlinear Dynamics | 562 | 10.7K | 13 | 52 |
| 111 | environmental protection | 495 | 10.3K | 7 | 65 |
| 112 | Mental illness | 216 | 10.3K | 73 | 99 |
| 113 | transport vesicles | 3 | 10.2K | 233 | 84 |
| 114 | Critical Care | 136 | 10.2K | 87 | 97 |
| 115 | Ophthalmology | 247 | 10.2K | 70 | 70 |
| 116 | Critical Care Medicine | 131 | 10.2K | 91 | 97 |
| 117 | Exercise | 504 | 10.1K | 1 | 3 |
| 118 | Ethology | 209 | 10.0K | 58 | 79 |
| 119 | Biodiversity | 270 | 10.0K | 17 | 64 |
| 120 | Health promotion | 128 | 9.9K | 67 | 31 |
| 121 | Oceanography | 592 | 9.9K | 24 | 102 |
| 122 | Cancer | 283 | 9.8K | 213 | 314 |
| 123 | Neurochemistry | 300 | 9.8K | 68 | 127 |
| 124 | Allergy | 83 | 9.8K | 99 | 92 |
| 125 | Medical innovations | 41 | 9.6K | 105 | 42 |
| 126 | Reproduction | 419 | 9.5K | 30 | 64 |
| 127 | Mycology | 290 | 9.5K | 15 | 23 |
| 128 | Obesity | 184 | 9.4K | 98 | 87 |
| 129 | Pharmacognosy | 287 | 9.3K | 15 | 19 |
| 130 | Education | 1,288 | 9.3K | 8 | 110 |
| 131 | Toxins | 330 | 9.3K | 2 | 3 |
| 132 | Environmental Policy | 223 | 9.2K | 64 | 149 |
| 133 | Computational Chemistry | 24 | 9.1K | 92 | 33 |
| 134 | venom | 318 | 9.0K | 2 | 3 |
| 135 | Materials Science | 351 | 9.0K | 264 | 402 |
| 136 | Clinical Chemistry | 267 | 9.0K | 79 | 112 |
| 137 | Environmental Toxicology | 168 | 9.0K | 50 | 56 |
| 138 | Parasites | 276 | 8.7K | 15 | 19 |
| 139 | Forest Ecology | 162 | 8.7K | 30 | 30 |
| 140 | Molecular Genetics | 213 | 8.5K | 47 | 95 |
| 141 | Entomology | 457 | 8.4K | 40 | 48 |
| 142 | Parenteral nutrition | 111 | 8.3K | 21 | 30 |
| 143 | Hypertension | 162 | 8.3K | 100 | 147 |
| 144 | Nanostructured Materials | 267 | 8.3K | 148 | 210 |
| 145 | concrete | 55 | 8.2K | 107 | 42 |
| 146 | Forest Management | 132 | 8.1K | 42 | 32 |
| 147 | Evolution | 263 | 8.1K | 44 | 160 |
| 148 | Antarctica | 390 | 8.1K | 2 | 2 |
| 149 | Composite Materials | 160 | 8.1K | 187 | 160 |
| 150 | Environmental Engineering | 369 | 8.1K | 86 | 267 |
| 151 | Hematology | 301 | 8.0K | 213 | 310 |
| 152 | Molecular evolution | 199 | 7.8K | 24 | 87 |
| 153 | drug development | 28 | 7.8K | 161 | 48 |
| 154 | Plant Ecology | 195 | 7.7K | 33 | 75 |
| 155 | Agriculture | 428 | 7.7K | 27 | 62 |
| 156 | Agricultural Chemistry | 223 | 7.6K | 74 | 78 |
| 157 | Industrial Microbiology | 196 | 7.6K | 20 | 33 |
| 158 | Water pollution | 250 | 7.6K | 56 | 152 |
| 159 | bees | 203 | 7.5K | 2 | 1 |
| 160 | Organic Chemistry | 276 | 7.3K | 96 | 171 |
| 161 | Technology | 292 | 7.3K | 123 | 165 |
| 162 | Plant physiology | 180 | 7.2K | 90 | 162 |
| 163 | Urology | 365 | 7.1K | 44 | 102 |
| 164 | Environmental Management | 200 | 7.0K | 43 | 103 |
| 165 | Diagnostic microbiology | 91 | 7.0K | 81 | 86 |
| 166 | Mathematical Physics | 550 | 7.0K | 27 | 179 |
| 167 | biological factors | 244 | 7.0K | 7 | 17 |
| 168 | gene mapping | 157 | 7.0K | 77 | 129 |
| 169 | Geochemistry | 179 | 6.9K | 178 | 207 |
| 170 | Respiration | 282 | 6.9K | 23 | 74 |
| 171 | Electrophoresis | 237 | 6.9K | 8 | 11 |
| 172 | Artificial Intelligence | 211 | 6.9K | 205 | 246 |
| 173 | Enteral nutrition | 91 | 6.9K | 12 | 27 |
| 174 | Plant diseases | 285 | 6.8K | 48 | 78 |
| 175 | United States | 215 | 6.8K | 355 | 359 |
| 176 | Geography | 218 | 6.7K | 98 | 120 |
| 177 | cytokines | 174 | 6.7K | 18 | 12 |
| 178 | Aging | 222 | 6.6K | 168 | 191 |
| 179 | Insects | 346 | 6.6K | 13 | 33 |
| 180 | Alzheimer's disease | 287 | 6.6K | 69 | 71 |
| 181 | Disease | 21 | 6.5K | 28 | 54 |
| 182 | Renewable Energy Sources | 137 | 6.5K | 84 | 219 |
| 183 | Nervous system | 151 | 6.5K | 163 | 208 |
| 184 | diseases | 11 | 6.4K | 89 | 57 |
| 185 | natural products | 205 | 6.4K | 19 | 24 |
| 186 | Inflammation | 201 | 6.4K | 3 | 7 |
| 187 | Chromosome mapping | 142 | 6.3K | 63 | 88 |
| 188 | Pediatrics | 114 | 6.2K | 222 | 202 |
| 189 | Dementia | 272 | 6.1K | 68 | 67 |
| 190 | soil microbiology | 121 | 6.1K | 77 | 115 |
| 191 | Plants | 194 | 6.0K | 64 | 200 |
| 192 | Energy Policy | 134 | 6.0K | 115 | 152 |
| 193 | Cardiovascular system | 73 | 5.9K | 213 | 208 |
| 194 | Stem cells | 150 | 5.9K | 57 | 65 |
| 195 | Ethnology | 550 | 5.9K | 2 | 10 |
| 196 | Light | 189 | 5.9K | 2 | 81 |
| 197 | Physical Chemistry | 215 | 5.8K | 75 | 160 |
| 198 | Membranes | 193 | 5.8K | 53 | 125 |
| 199 | Food Microbiology | 127 | 5.8K | 29 | 41 |
| 200 | Surgery | 66 | 5.8K | 270 | 265 |
| 201 | Pharmacy | 164 | 5.8K | 97 | 75 |
| 202 | Physical fitness | 254 | 5.8K | 3 | 22 |
| 203 | Diabetes | 95 | 5.7K | 243 | 241 |
| 204 | Environmental pollutants | 154 | 5.7K | 42 | 47 |
| 205 | Chromatographic analysis | 238 | 5.7K | 14 | 9 |
| 206 | Photobiology | 197 | 5.6K | 3 | 6 |
| 207 | Phylogeny | 145 | 5.6K | 10 | 27 |
| 208 | nucleic acids | 46 | 5.5K | 392 | 275 |
| 209 | drugs | 156 | 5.5K | 73 | 59 |
| 210 | Anatomy | 384 | 5.4K | 29 | 173 |
| 211 | Diabetes mellitus | 85 | 5.3K | 231 | 234 |
| 212 | Dermatology | 201 | 5.3K | 77 | 114 |
| 213 | Bioinorganic chemistry | 166 | 5.3K | 11 | 11 |
| 214 | Chromatography | 195 | 5.3K | 10 | 7 |
| 215 | Pathology | 165 | 5.2K | 152 | 232 |
| 216 | Raman spectroscopy | 106 | 5.2K | 7 | 4 |
| 216 | Planets | 76 | 5.2K | 303 | 221 |
| 218 | Molecular structure | 283 | 5.2K | 20 | 151 |
| 219 | Computational Biology | 134 | 5.2K | 188 | 263 |
| 220 | Clinical Immunology | 125 | 5.1K | 35 | 24 |
| 221 | Neurobiology | 181 | 5.1K | 94 | 226 |
| 222 | Electrical Engineering | 429 | 5.1K | 100 | 144 |
| 223 | Quality Control | 206 | 5.0K | 8 | 28 |
| 224 | Immunotherapy | 129 | 5.0K | 68 | 182 |
| 225 | disease vectors | 160 | 5.0K | 9 | 13 |
| 226 | pollutants | 124 | 5.0K | 49 | 53 |
| 227 | Bioorganic chemistry | 164 | 4.9K | 144 | 216 |
| 228 | Medical Laboratory Science | 127 | 4.9K | 105 | 174 |
| 229 | Insect biochemistry | 110 | 4.9K | 9 | 9 |
| 230 | Histology | 149 | 4.8K | 76 | 122 |
| 231 | Comparative Physiology | 126 | 4.8K | 11 | 14 |
| 232 | Optics | 258 | 4.8K | 401 | 403 |
| 233 | Information Science | 229 | 4.7K | 26 | 115 |
| 234 | ecosystem | 126 | 4.7K | 25 | 76 |
| 235 | Developmental Biology | 135 | 4.7K | 184 | 301 |
| 236 | Obstetrics | 166 | 4.7K | 136 | 164 |
| 237 | Hydrology | 175 | 4.6K | 122 | 184 |
| 238 | Radiation | 235 | 4.6K | 23 | 55 |
| 239 | proteins | 197 | 4.6K | 55 | 144 |
| 240 | Drug design | 128 | 4.6K | 28 | 44 |
| 241 | Immune system | 94 | 4.5K | 54 | 194 |
| 242 | civilization | 1,270 | 4.4K | 1 | 1 |
| 243 | Building Materials | 115 | 4.4K | 104 | 138 |
| 244 | Health Education | 453 | 4.4K | 11 | 99 |
| 245 | Medicinal plants | 106 | 4.4K | 43 | 29 |
| 246 | Neurotransmitters | 47 | 4.4K | 28 | 15 |
| 247 | Biogeography | 82 | 4.4K | 37 | 78 |
| 248 | Cement | 18 | 4.4K | 156 | 50 |
| 249 | Data Mining | 53 | 4.4K | 104 | 87 |
| 250 | Algae | 100 | 4.3K | 24 | 21 |
| 251 | Cell metabolism | 95 | 4.3K | 11 | 101 |
| 252 | environmental exposure | 107 | 4.3K | 54 | 43 |
| 253 | Environmental Microbiology | 104 | 4.3K | 35 | 108 |
| 254 | Fluid Mechanics | 84 | 4.3K | 182 | 91 |
| 255 | Breeding | 183 | 4.3K | 35 | 74 |
| 256 | biofuels | 49 | 4.2K | 9 | 5 |
| 257 | Genetic engineering | 121 | 4.2K | 93 | 163 |
| 258 | pain | 139 | 4.2K | 63 | 134 |
| 259 | Sleep Disorders | 174 | 4.2K | 65 | 122 |
| 260 | Sleep | 174 | 4.1K | 63 | 128 |
| 261 | Solid State Chemistry | 230 | 4.1K | 65 | 117 |
| 262 | Water | 100 | 4.1K | 252 | 348 |
| 262 | Cell differentiation | 84 | 4.1K | 216 | 312 |
| 264 | Engineering | 232 | 4.1K | 192 | 239 |
| 265 | plant molecular biology | 56 | 4.0K | 253 | 267 |
| 266 | Child psychology | 33 | 4.0K | 349 | 205 |
| 267 | drug therapy | 133 | 4.0K | 180 | 213 |
| 268 | Marine Pollution | 121 | 4.0K | 18 | 47 |
| 269 | cell interaction | 111 | 4.0K | 17 | 17 |
| 270 | Immunopathology | 132 | 3.9K | 44 | 70 |
| 271 | Vaccines | 153 | 3.9K | 75 | 117 |
| 272 | Animal breeding | 190 | 3.9K | 8 | 21 |
| 273 | Economics | 460 | 3.9K | 112 | 423 |
| 274 | Community Psychiatry | 61 | 3.9K | 83 | 52 |
| 275 | epilepsy | 142 | 3.8K | 15 | 30 |
| 275 | Host-parasite interactions | 81 | 3.8K | 90 | 205 |
| 277 | food handling | 81 | 3.8K | 21 | 19 |
| 278 | Computer Graphics | 98 | 3.8K | 145 | 135 |
| 279 | rehabilitation | 146 | 3.8K | 118 | 180 |
| 280 | enzymes | 128 | 3.8K | 42 | 70 |
| 281 | Lightweight concrete | 31 | 3.8K | 46 | 23 |
| 282 | actuators | 111 | 3.7K | 114 | 152 |
| 282 | Virulence | 77 | 3.7K | 87 | 171 |
| 282 | transducers | 111 | 3.7K | 114 | 152 |
| 285 | Clinical Pharmacology | 168 | 3.7K | 32 | 54 |
| 286 | Surface properties | 117 | 3.7K | 7 | 19 |
| 287 | complementary therapies | 112 | 3.7K | 77 | 41 |
| 288 | Oxidative stress | 97 | 3.7K | 20 | 37 |
| 289 | mycoses | 90 | 3.7K | 14 | 73 |
| 290 | Geriatrics | 194 | 3.7K | 198 | 302 |
| 291 | Biopharmaceutics | 92 | 3.7K | 34 | 27 |
| 292 | Luminescence | 190 | 3.7K | 4 | 11 |
| 293 | arthritis | 68 | 3.7K | 159 | 175 |
| 294 | Evolutionary Genetics | 103 | 3.7K | 6 | 5 |
| 294 | Molecular Epidemiology | 103 | 3.7K | 6 | 5 |
| 296 | Chromosomes | 114 | 3.6K | 10 | 42 |
| 296 | cell physiology | 86 | 3.6K | 133 | 199 |
| 298 | Mineralogy | 122 | 3.6K | 96 | 136 |
| 299 | nanoscience | 92 | 3.6K | 396 | 492 |
| 300 | Food additives | 61 | 3.6K | 75 | 66 |
| 301 | Biogeochemistry | 60 | 3.6K | 141 | 153 |
| 302 | Manufacturing Processes | 148 | 3.6K | 125 | 156 |
| 303 | Communication | 545 | 3.6K | 10 | 179 |
| 304 | Electronics | 167 | 3.5K | 360 | 374 |
| 305 | Cell communication | 97 | 3.5K | 5 | 3 |
| 306 | Biosensors | 49 | 3.5K | 138 | 110 |
| 307 | Optical materials | 156 | 3.5K | 184 | 378 |
| 308 | Embryology | 93 | 3.5K | 177 | 256 |
| 309 | Fungi | 91 | 3.4K | 44 | 87 |
| 310 | Hormones | 143 | 3.4K | 24 | 91 |
| 311 | Mites | 145 | 3.4K | 3 | 2 |
| 312 | Transplantation | 57 | 3.4K | 180 | 161 |
| 313 | Economic History | 362 | 3.3K | 47 | 203 |
| 314 | Atomic spectroscopy | 99 | 3.3K | 34 | 33 |
| 315 | Cybernetics | 32 | 3.3K | 361 | 173 |
| 316 | Physical Therapy | 109 | 3.3K | 75 | 106 |
| 317 | Surface-Active Agents | 116 | 3.3K | 7 | 22 |
| 318 | mathematical analysis | 276 | 3.3K | 26 | 73 |
| 319 | energy resources | 70 | 3.3K | 67 | 159 |
| 320 | Paleoecology | 77 | 3.3K | 58 | 58 |
| 321 | Bipolar Disorder | 26 | 3.3K | 63 | 28 |
| 322 | cell adhesion molecules | 91 | 3.3K | 1 | 1 |
| 323 | Alternative Medicine | 96 | 3.2K | 81 | 47 |
| 324 | Structural dynamics | 63 | 3.2K | 107 | 88 |
| 325 | Bioelectronics | 41 | 3.2K | 128 | 100 |
| 326 | Liver diseases | 37 | 3.2K | 327 | 295 |
| 327 | Lipids | 94 | 3.2K | 48 | 106 |
| 328 | genome | 66 | 3.2K | 176 | 324 |
| 329 | Memory | 97 | 3.2K | 182 | 213 |
| 330 | Pharmaceutical Technology | 121 | 3.1K | 31 | 80 |
| 331 | Medical Technology | 87 | 3.1K | 58 | 56 |
| 332 | Child | 128 | 3.1K | 173 | 207 |
| 333 | Molecular ecology | 62 | 3.1K | 123 | 184 |
| 334 | Automation | 131 | 3.1K | 166 | 355 |
| 335 | Petrology | 106 | 3.1K | 75 | 143 |
| 336 | Molecular Spectroscopy | 126 | 3.1K | 40 | 52 |
| 337 | Aquaculture | 112 | 3.1K | 100 | 133 |
| 338 | Communication in medicine | 346 | 3.0K | 1 | 22 |
| 339 | Microscopy | 177 | 3.0K | 23 | 74 |
| 340 | Operations Research | 138 | 3.0K | 115 | 208 |
| 341 | Analytical Biochemistry | 122 | 3.0K | 37 | 94 |
| 342 | Primates | 129 | 3.0K | 21 | 40 |
| 343 | Geriatric Psychiatry | 95 | 3.0K | 44 | 56 |
| 344 | Perception | 90 | 3.0K | 213 | 206 |
| 345 | Acarology | 90 | 3.0K | 3 | 2 |
| 346 | Population Genetics | 77 | 3.0K | 116 | 187 |
| 347 | fertility | 89 | 3.0K | 74 | 124 |
| 348 | Seaweed | 66 | 3.0K | 25 | 24 |
| 349 | Ticks | 95 | 3.0K | 4 | 2 |
| 350 | hydrocolloids | 31 | 2.9K | 106 | 72 |
| 351 | Acari | 89 | 2.9K | 3 | 2 |
| 352 | Infertility | 85 | 2.9K | 71 | 117 |
| 353 | Paleontology | 143 | 2.9K | 64 | 84 |
| 354 | Fracture mechanics | 93 | 2.9K | 99 | 90 |
| 355 | Production Engineering | 204 | 2.9K | 52 | 93 |
| 356 | Bioinformatics | 85 | 2.9K | 206 | 317 |
| 357 | Schizophrenia | 116 | 2.9K | 72 | 133 |
| 358 | miniaturization | 73 | 2.8K | 241 | 367 |
| 359 | Neuropharmacology | 33 | 2.8K | 49 | 11 |
| 360 | Cytogenetics | 65 | 2.8K | 180 | 289 |
| 361 | soil management | 71 | 2.8K | 19 | 26 |
| 362 | Evidence-Based Medicine | 63 | 2.8K | 77 | 27 |
| 363 | Genetic Toxicology | 59 | 2.8K | 6 | 18 |
| 364 | Hazardous waste | 40 | 2.8K | 46 | 32 |
| 365 | Attention | 90 | 2.8K | 176 | 176 |
| 366 | management | 300 | 2.8K | 79 | 591 |
| 367 | Nitric oxide | 64 | 2.7K | 1 | 4 |
| 368 | Paleoclimatology | 73 | 2.7K | 81 | 107 |
| 369 | Green Chemistry | 62 | 2.7K | 230 | 277 |
| 370 | Developmental Immunology | 56 | 2.7K | 30 | 22 |
| 371 | Muscles | 63 | 2.7K | 59 | 64 |
| 372 | Signal Transduction | 57 | 2.7K | 125 | 174 |
| 373 | Sociology | 244 | 2.7K | 120 | 355 |
| 374 | industrial waste | 33 | 2.7K | 49 | 31 |
| 375 | radioactive waste | 32 | 2.7K | 47 | 31 |
| 376 | Cellulose | 76 | 2.7K | 20 | 32 |
| 377 | protein | 84 | 2.7K | 86 | 156 |
| 378 | Oxidation-reduction | 50 | 2.6K | 48 | 89 |
| 379 | Microbial Biotechnology | 88 | 2.6K | 9 | 15 |
| 380 | United Kingdom | 69 | 2.6K | 206 | 245 |
| 381 | tillage | 61 | 2.6K | 16 | 24 |
| 382 | Environmental Geology | 114 | 2.6K | 32 | 99 |
| 383 | Hemodynamics | 47 | 2.6K | 67 | 86 |
| 384 | Molecular Microbiology | 64 | 2.6K | 76 | 180 |
| 385 | Visual Perception | 80 | 2.5K | 184 | 179 |
| 386 | body temperature | 52 | 2.5K | 2 | 1 |
| 387 | Dentistry | 131 | 2.5K | 17 | 19 |
| 388 | amino acids | 60 | 2.5K | 7 | 6 |
| 389 | Environmental Chemistry | 88 | 2.5K | 138 | 383 |
| 390 | Developing countries | 112 | 2.5K | 120 | 204 |
| 391 | animals | 136 | 2.5K | 31 | 47 |
| 392 | Diagnostic Imaging | 94 | 2.5K | 160 | 222 |
| 393 | bioclimatology | 85 | 2.5K | 8 | 16 |
| 394 | Algebra | 366 | 2.5K | 1 | 21 |
| 395 | Nutrition physiology | 66 | 2.5K | 22 | 39 |
| 396 | Magnetic Resonance Spectroscopy | 120 | 2.4K | 61 | 98 |
| 397 | Paleogeography | 58 | 2.4K | 70 | 89 |
| 398 | Recombinant DNA | 95 | 2.4K | 44 | 118 |
| 399 | Reproductive health | 44 | 2.4K | 55 | 25 |
| 400 | visualization | 105 | 2.4K | 99 | 57 |
| 401 | Ocean Engineering | 129 | 2.4K | 94 | 186 |
| 402 | South America | 318 | 2.4K | 3 | 3 |
| 403 | preventive medicine | 31 | 2.4K | 256 | 156 |
| 404 | probabilities | 186 | 2.4K | 21 | 46 |
| 405 | energy conservation | 65 | 2.4K | 215 | 350 |
| 406 | Contraception | 40 | 2.4K | 65 | 32 |
| 407 | Cosmology | 220 | 2.3K | 11 | 75 |
| 408 | Biomass | 62 | 2.3K | 10 | 33 |
| 409 | Geodynamics | 52 | 2.3K | 106 | 111 |
| 410 | Geomorphology | 111 | 2.3K | 43 | 175 |
| 411 | Signal Processing | 102 | 2.3K | 331 | 469 |
| 412 | Biogeochemical cycles | 14 | 2.3K | 157 | 85 |
| 412 | Metabolic syndrome | 75 | 2.3K | 1 | 1 |
| 414 | Animal ecology | 127 | 2.3K | 43 | 151 |
| 415 | Anthropology | 329 | 2.3K | 39 | 126 |
| 416 | Adolescent Medicine | 13 | 2.3K | 195 | 88 |
| 417 | Radiation effects | 44 | 2.3K | 15 | 18 |
| 418 | Calorimetry | 132 | 2.3K | 13 | 20 |
| 418 | Thermal analysis | 132 | 2.3K | 13 | 20 |
| 420 | clay | 40 | 2.3K | 46 | 37 |
| 421 | Plant cells | 31 | 2.3K | 346 | 407 |
| 422 | Drug delivery systems | 84 | 2.3K | 57 | 182 |
| 423 | Cellular senescence | 60 | 2.3K | 26 | 32 |
| 424 | Production Management | 112 | 2.2K | 36 | 197 |
| 425 | Health | 135 | 2.2K | 124 | 245 |
| 426 | Metallurgy | 75 | 2.2K | 350 | 367 |
| 427 | Molecular cloning | 87 | 2.2K | 46 | 118 |
| 428 | Immunopharmacology | 85 | 2.2K | 41 | 41 |
| 428 | Neural circuitry | 114 | 2.2K | 80 | 194 |
| 430 | dietary supplements | 50 | 2.2K | 22 | 24 |
| 431 | coal | 62 | 2.2K | 164 | 203 |
| 432 | Water quality management | 117 | 2.2K | 62 | 120 |
| 433 | Differential Equations | 120 | 2.2K | 9 | 28 |
| 434 | Genetic regulation | 66 | 2.2K | 95 | 230 |
| 434 | city planning | 349 | 2.2K | 6 | 142 |
| 436 | Sustainable Development | 108 | 2.2K | 44 | 205 |
| 437 | Oncogenes | 23 | 2.2K | 387 | 326 |
| 438 | Histochemistry | 95 | 2.2K | 17 | 51 |
| 439 | Environmental Law | 28 | 2.1K | 208 | 194 |
| 440 | Proteomics | 76 | 2.1K | 37 | 104 |
| 441 | feeding behavior | 55 | 2.1K | 46 | 53 |
| 442 | Mass Spectrometry | 103 | 2.1K | 43 | 109 |
| 443 | Restoration Ecology | 46 | 2.1K | 16 | 15 |
| 444 | Adolescent | 82 | 2.1K | 203 | 231 |
| 445 | Europe | 168 | 2.1K | 203 | 366 |
| 446 | Genetic recombination | 78 | 2.1K | 49 | 127 |
| 447 | Ceramic materials | 89 | 2.1K | 62 | 94 |
| 448 | Cardiovascular diseases | 81 | 2.1K | 163 | 199 |
| 449 | Chronobiology | 85 | 2.1K | 3 | 19 |
| 449 | biological clocks | 85 | 2.1K | 3 | 19 |
| 449 | circadian rhythm | 85 | 2.1K | 3 | 19 |
| 449 | biological rhythms | 85 | 2.1K | 2 | 19 |
| 453 | Image Processing | 83 | 2.1K | 242 | 395 |
| 454 | infection | 82 | 2.0K | 116 | 227 |
| 455 | Bioenergetics | 64 | 2.0K | 54 | 89 |
| 455 | Autoimmunity | 45 | 2.0K | 58 | 88 |
| 457 | Appetite | 49 | 2.0K | 42 | 49 |
| 458 | Morphology | 225 | 2.0K | 2 | 38 |
| 459 | Process Control | 44 | 2.0K | 51 | 108 |
| 460 | nuclear magnetic resonance | 91 | 2.0K | 88 | 128 |
| 461 | Protozoa | 35 | 2.0K | 36 | 40 |
| 462 | Antioxidants | 49 | 2.0K | 34 | 94 |
| 462 | Anxiety Disorders | 24 | 2.0K | 108 | 90 |
| 462 | Anxiety | 24 | 2.0K | 109 | 90 |
| 465 | Birth control | 23 | 2.0K | 78 | 24 |
| 466 | Malaria | 64 | 2.0K | 60 | 68 |
| 467 | Photonics | 73 | 2.0K | 304 | 426 |
| 468 | Australia | 92 | 1.9K | 119 | 120 |
| 468 | Fisheries | 55 | 1.9K | 241 | 209 |
| 470 | Cognition | 45 | 1.9K | 359 | 323 |
| 471 | Recycling | 20 | 1.9K | 101 | 65 |
| 472 | Medical Physics | 93 | 1.9K | 215 | 328 |
| 473 | Economic Development | 83 | 1.9K | 113 | 255 |
| 474 | Regional Planning | 141 | 1.9K | 42 | 163 |
| 475 | Veterinary Pathology | 89 | 1.9K | 4 | 4 |
| 476 | Orthopedics | 64 | 1.9K | 220 | 222 |
| 477 | viruses | 45 | 1.9K | 323 | 396 |
| 478 | Gerontology | 117 | 1.9K | 174 | 243 |
| 479 | Meteorites | 31 | 1.9K | 285 | 285 |
| 480 | sanitation | 33 | 1.9K | 398 | 483 |
| 480 | Medical Anthropology | 31 | 1.9K | 267 | 236 |
| 482 | Conservation Biology | 68 | 1.9K | 82 | 176 |
| 483 | plant communities | 46 | 1.9K | 167 | 240 |
| 484 | Continental shelf | 37 | 1.9K | 48 | 40 |
| 485 | Agricultural Ecology | 47 | 1.8K | 126 | 190 |
| 485 | data collection | 29 | 1.8K | 107 | 151 |
| 487 | Microorganisms | 48 | 1.8K | 81 | 194 |
| 488 | Engineering Mathematics | 129 | 1.8K | 118 | 177 |
| 488 | alcoholism | 87 | 1.8K | 156 | 251 |
| 490 | Chemotherapy | 45 | 1.8K | 208 | 156 |
| 491 | Pediatric Neurology | 21 | 1.8K | 310 | 303 |
| 492 | Mechanical Engineering | 196 | 1.8K | 94 | 209 |
| 493 | Radiography | 13 | 1.8K | 324 | 183 |
| 494 | Depression | 18 | 1.8K | 69 | 51 |
| 495 | Industrial Engineering | 86 | 1.8K | 152 | 246 |
| 496 | Pharmacokinetics | 63 | 1.8K | 36 | 59 |
| 497 | Plant Morphology | 94 | 1.8K | 8 | 14 |
| 498 | Clinical Psychology | 39 | 1.8K | 299 | 362 |
| 499 | Growth | 146 | 1.8K | 74 | 361 |
| 500 | Systems Biology | 66 | 1.8K | 117 | 141 |
| 501 | Proteome | 80 | 1.8K | 61 | 198 |
| 502 | System analysis | 114 | 1.7K | 145 | 289 |
| 503 | Archaeology | 112 | 1.7K | 101 | 156 |
| 504 | Medical Oncology | 61 | 1.7K | 260 | 370 |
| 504 | lasers | 104 | 1.7K | 185 | 249 |
| 506 | mutation | 34 | 1.7K | 65 | 61 |
| 507 | Energy metabolism | 53 | 1.7K | 59 | 100 |
| 508 | Social Change | 25 | 1.7K | 122 | 95 |
| 509 | Herbal medicine | 40 | 1.7K | 43 | 36 |
| 510 | Therapeutics | 47 | 1.7K | 297 | 347 |
| 511 | Rheumatology | 49 | 1.7K | 158 | 250 |
| 512 | Neuropsychiatry | 45 | 1.7K | 91 | 94 |
| 513 | Quantum electronics | 16 | 1.7K | 688 | 194 |
| 514 | Crystallography | 155 | 1.7K | 40 | 140 |
| 515 | Sarcopenia | 19 | 1.7K | 46 | 24 |
| 516 | Child Development | 176 | 1.7K | 113 | 378 |
| 516 | Women's health | 69 | 1.7K | 88 | 95 |
| 518 | Systems Engineering | 47 | 1.6K | 344 | 252 |
| 519 | Circadian rhythms | 59 | 1.6K | 5 | 22 |
| 520 | Organometallic chemistry | 97 | 1.6K | 66 | 117 |
| 521 | Synaptic Transmission | 50 | 1.6K | 23 | 31 |
| 522 | Power Electronics | 21 | 1.6K | 358 | 241 |
| 523 | Informatics | 72 | 1.6K | 18 | 89 |
| 524 | Neuroimmunology | 46 | 1.6K | 47 | 110 |
| 525 | Public Policy | 66 | 1.6K | 177 | 267 |
| 526 | behavioral medicine | 31 | 1.6K | 279 | 265 |
| 526 | Celestial Mechanics | 61 | 1.6K | 5 | 7 |
| 528 | Substance Abuse | 70 | 1.6K | 177 | 210 |
| 529 | Cosmochemistry | 27 | 1.6K | 184 | 118 |
| 530 | Psychoneuroimmunology | 42 | 1.5K | 41 | 100 |
| 531 | Molecules | 81 | 1.5K | 120 | 208 |
| 532 | Genes | 51 | 1.5K | 106 | 104 |
| 533 | Microelectronics | 26 | 1.5K | 604 | 488 |
| 534 | Ultrasonics | 50 | 1.5K | 110 | 150 |
| 535 | Sexual health | 54 | 1.5K | 63 | 76 |
| 535 | Plastics | 47 | 1.5K | 218 | 163 |
| 537 | Cytokine | 10 | 1.5K | 125 | 34 |
| 538 | Growth factors | 7 | 1.5K | 107 | 32 |
| 539 | Information Retrieval | 13 | 1.5K | 141 | 56 |
| 539 | Kidney diseases | 47 | 1.5K | 106 | 121 |
| 541 | Soil biology | 29 | 1.4K | 208 | 252 |
| 542 | Chemical industry | 46 | 1.4K | 173 | 77 |
| 543 | Physical organic chemistry | 64 | 1.4K | 94 | 134 |
| 544 | Infections | 46 | 1.4K | 136 | 253 |
| 545 | Human biology | 77 | 1.4K | 14 | 33 |
| 546 | economic policy | 214 | 1.4K | 37 | 259 |
| 547 | biomedicine | 32 | 1.4K | 66 | 31 |
| 548 | China | 70 | 1.4K | 389 | 389 |
| 549 | Flow cytometry | 37 | 1.4K | 17 | 16 |
| 550 | Semiconductors | 131 | 1.4K | 93 | 186 |
| 551 | Landscape Ecology | 28 | 1.4K | 48 | 57 |
| 552 | Educational Sociology | 129 | 1.4K | 2 | 4 |
| 552 | Cell death | 39 | 1.4K | 202 | 380 |
| 554 | Neurotoxicology | 49 | 1.4K | 17 | 36 |
| 555 | environmental indicators | 48 | 1.4K | 56 | 118 |
| 556 | Biomechanics | 53 | 1.4K | 193 | 260 |
| 557 | disease outbreaks | 11 | 1.4K | 212 | 71 |
| 557 | Epidemics | 11 | 1.4K | 204 | 70 |
| 559 | drug evaluation | 64 | 1.4K | 54 | 90 |
| 560 | Political Science | 138 | 1.4K | 135 | 281 |
| 561 | Quantum Chemistry | 105 | 1.3K | 14 | 43 |
| 562 | Nanostructures | 67 | 1.3K | 188 | 503 |
| 563 | Agronomy | 35 | 1.3K | 84 | 112 |
| 564 | Chemical analysis | 45 | 1.3K | 76 | 99 |
| 565 | Autoimmune diseases | 30 | 1.3K | 75 | 65 |
| 565 | brain mapping | 19 | 1.3K | 194 | 149 |
| 567 | Learning | 45 | 1.3K | 207 | 293 |
| 568 | Structural Engineering | 74 | 1.3K | 229 | 321 |
| 568 | global environmental change | 39 | 1.3K | 77 | 179 |
| 570 | gene therapy | 36 | 1.3K | 165 | 236 |
| 571 | Biodegradation | 59 | 1.3K | 8 | 40 |
| 572 | Plant tissue culture | 41 | 1.3K | 59 | 67 |
| 573 | Plant cell culture | 40 | 1.3K | 44 | 65 |
| 574 | Quality of life | 39 | 1.3K | 183 | 256 |
| 575 | Waste management | 72 | 1.3K | 66 | 119 |
| 576 | industrial hygiene | 112 | 1.3K | 21 | 51 |
| 577 | Immunogenetics | 44 | 1.3K | 56 | 73 |
| 578 | Numerical Analysis | 107 | 1.3K | 154 | 325 |
| 578 | Homeostasis | 5 | 1.3K | 304 | 324 |
| 580 | Radiology | 78 | 1.3K | 122 | 167 |
| 581 | Thrombosis | 38 | 1.3K | 165 | 222 |
| 582 | Cell division | 32 | 1.2K | 41 | 33 |
| 583 | Music | 145 | 1.2K | 5 | 46 |
| 583 | histological techniques | 32 | 1.2K | 80 | 106 |
| 583 | Genetic therapy | 39 | 1.2K | 178 | 240 |
| 586 | cloning | 19 | 1.2K | 145 | 180 |
| 587 | health planning | 84 | 1.2K | 125 | 246 |
| 588 | Geometry | 100 | 1.2K | 46 | 59 |
| 589 | drug addiction | 55 | 1.2K | 170 | 272 |
| 590 | Laser therapy | 47 | 1.2K | 17 | 7 |
| 591 | Gene expression regulation | 66 | 1.2K | 62 | 254 |
| 592 | carcinogens | 42 | 1.2K | 102 | 192 |
| 593 | Sustainable Engineering | 49 | 1.2K | 213 | 375 |
| 594 | Pharmacogenetics | 46 | 1.2K | 83 | 187 |
| 595 | Functional Analysis | 75 | 1.2K | 80 | 128 |
| 596 | Neurosurgery | 48 | 1.2K | 98 | 206 |
| 596 | Psychiatric Epidemiology | 31 | 1.2K | 54 | 72 |
| 598 | Social Sciences | 285 | 1.2K | 95 | 501 |
| 599 | machinery | 149 | 1.2K | 4 | 46 |
| 600 | sustainability | 26 | 1.2K | 110 | 193 |
| 601 | medical education | 42 | 1.2K | 317 | 289 |
| 602 | Robotics | 40 | 1.2K | 336 | 323 |
| 603 | sports injuries | 40 | 1.2K | 34 | 16 |
| 604 | Nuclear Chemistry | 129 | 1.2K | 39 | 83 |
| 605 | Engineering Geology | 49 | 1.2K | 212 | 306 |
| 606 | Computer-Aided Design | 70 | 1.2K | 62 | 156 |
| 607 | voice | 51 | 1.2K | 19 | 23 |
| 608 | Yeast | 30 | 1.2K | 36 | 50 |
| 609 | Antibacterial agents | 38 | 1.2K | 41 | 72 |
| 610 | Soil ecology | 41 | 1.2K | 69 | 119 |
| 611 | Autoantibodies | 25 | 1.2K | 84 | 63 |
| 612 | Chronic diseases | 15 | 1.2K | 217 | 195 |
| 613 | drug resistance | 79 | 1.2K | 3 | 50 |
| 614 | marketing | 20 | 1.2K | 630 | 488 |
| 614 | Metals | 35 | 1.2K | 540 | 540 |
| 616 | Enzyme | 33 | 1.2K | 27 | 52 |
| 617 | Radioisotopes | 88 | 1.1K | 47 | 72 |
| 618 | food contamination | 87 | 1.1K | 19 | 61 |
| 619 | Neurons | 7 | 1.1K | 381 | 467 |
| 620 | Aquatic ecology | 32 | 1.1K | 127 | 101 |
| 621 | Tribology | 37 | 1.1K | 190 | 171 |
| 622 | Bioremediation | 36 | 1.1K | 26 | 49 |
| 623 | Business | 108 | 1.1K | 97 | 629 |
| 624 | Carcinogenesis | 38 | 1.1K | 123 | 218 |
| 625 | Climate | 45 | 1.1K | 20 | 72 |
| 626 | Ore deposits | 41 | 1.1K | 68 | 85 |
| 627 | Transportation | 71 | 1.1K | 221 | 367 |
| 627 | Water Purification | 63 | 1.1K | 60 | 115 |
| 629 | Fractals | 73 | 1.1K | 45 | 105 |
| 630 | Public Administration | 141 | 1.1K | 48 | 211 |
| 631 | Solitons | 72 | 1.1K | 21 | 85 |
| 631 | Chaos | 72 | 1.1K | 21 | 85 |
| 631 | Bacterial infections | 37 | 1.1K | 90 | 280 |
| 634 | Heat Exchangers | 39 | 1.1K | 148 | 230 |
| 635 | Animal Nutrition | 68 | 1.1K | 47 | 83 |
| 635 | locomotion | 48 | 1.1K | 31 | 90 |
| 635 | posture | 48 | 1.1K | 31 | 90 |
| 635 | gait | 48 | 1.1K | 31 | 90 |
| 635 | walking | 48 | 1.1K | 31 | 90 |
| 640 | blood transfusion | 42 | 1.1K | 106 | 98 |
| 641 | mass transfer | 30 | 1.1K | 415 | 395 |
| 642 | Chemical Ecology | 51 | 1.1K | 33 | 103 |
| 643 | Histocompatibility Testing | 47 | 1.1K | 18 | 35 |
| 644 | mutagens | 34 | 1.1K | 117 | 215 |
| 645 | Oral Medicine | 109 | 1.1K | 3 | 13 |
| 646 | Serology | 39 | 1.1K | 31 | 33 |
| 646 | Edible plants | 24 | 1.1K | 8 | 8 |
| 648 | Technological Innovations | 49 | 1.1K | 43 | 81 |
| 649 | Building | 193 | 1.1K | 3 | 73 |
| 650 | cosmic rays | 57 | 1.1K | 26 | 32 |
| 651 | Clinical Biochemistry | 29 | 1.1K | 227 | 210 |
| 652 | Solar Energy | 32 | 1.1K | 270 | 382 |
| 653 | pain management | 62 | 1.0K | 25 | 68 |
| 654 | Leukemia | 22 | 1.0K | 345 | 398 |
| 655 | weather | 46 | 1.0K | 8 | 44 |
| 656 | Dynamics | 108 | 1.0K | 55 | 165 |
| 657 | Neuromuscular diseases | 44 | 1.0K | 68 | 120 |
| 658 | Particle Physics | 73 | 1.0K | 22 | 67 |
| 658 | animal diseases | 47 | 1.0K | 34 | 49 |
| 660 | preimplantation genetic diagnosis | 37 | 1.0K | 24 | 26 |
| 660 | embryo transfer | 37 | 1.0K | 27 | 29 |
| 662 | vascular diseases | 36 | 1.0K | 97 | 203 |
| 663 | pigments | 40 | 1.0K | 84 | 85 |
| 664 | Computer Science | 91 | 1.0K | 89 | 211 |
| 664 | Randomized Controlled Trials | 57 | 1.0K | 93 | 94 |
| 666 | Nonlinear functional analysis | 60 | 1.0K | 63 | 106 |
| 667 | Ecological Genetics | 43 | 1.0K | 28 | 24 |
| 667 | Carbon | 21 | 1.0K | 369 | 433 |
| 669 | Zoonoses | 32 | 1.0K | 12 | 18 |
| 670 | Japan | 56 | 1.0K | 228 | 207 |
| 671 | polar regions | 38 | 1.0K | 87 | 88 |
| 672 | History | 548 | 1.0K | 7 | 34 |
| 672 | Infection control | 32 | 1.0K | 68 | 72 |
| 674 | Information Technology | 41 | 1.0K | 406 | 533 |
| 675 | Land use | 42 | 1.0K | 95 | 169 |
| 675 | vibration | 50 | 1.0K | 146 | 224 |
| 675 | Glass | 44 | 1.0K | 172 | 265 |
| 678 | Phytotherapy | 28 | 1.0K | 86 | 72 |
| 679 | Sonochemistry | 20 | 997 | 79 | 97 |
| 680 | mammals | 73 | 995 | 64 | 143 |
| 681 | Ceramics | 50 | 994 | 214 | 296 |
| 682 | heredity | 48 | 992 | 48 | 72 |
| 683 | Functional foods | 26 | 991 | 29 | 20 |
| 684 | Social behavior | 61 | 990 | 120 | 306 |
| 685 | Industry | 13 | 988 | 10 | 23 |
| 686 | Combinatorial chemistry | 18 | 986 | 234 | 216 |
| 687 | Quantum Optics | 48 | 983 | 78 | 112 |
| 687 | Crystal growth | 38 | 983 | 126 | 164 |
| 689 | Digestive system diseases | 38 | 978 | 146 | 169 |
| 690 | Computer Vision | 16 | 971 | 390 | 336 |
| 691 | Audiology | 34 | 965 | 160 | 167 |
| 692 | Nephrology | 25 | 963 | 128 | 142 |
| 693 | Antigens | 41 | 962 | 101 | 170 |
| 694 | Steroids | 40 | 958 | 130 | 180 |
| 695 | Global Health | 33 | 956 | 140 | 100 |
| 696 | Marine Ecology | 71 | 955 | 23 | 87 |
| 697 | Laser Spectroscopy | 44 | 952 | 76 | 104 |
| 698 | Health Information Management | 3 | 948 | 272 | 102 |
| 699 | Invertebrates | 41 | 938 | 47 | 69 |
| 700 | Plant breeding | 39 | 937 | 104 | 118 |
| 701 | Magnetic Materials | 36 | 932 | 328 | 365 |
| 701 | Radio | 26 | 932 | 497 | 495 |
| 703 | Artificial Organs | 56 | 931 | 44 | 58 |
| 704 | solar cells | 22 | 930 | 166 | 212 |
| 705 | Infrared spectroscopy | 37 | 926 | 5 | 10 |
| 705 | peptides | 60 | 926 | 26 | 52 |
| 707 | Liquid Crystals | 80 | 922 | 69 | 56 |
| 708 | electrocatalysis | 37 | 921 | 1 | 1 |
| 709 | Organic Geochemistry | 10 | 920 | 156 | 93 |
| 710 | Dietetics | 43 | 919 | 77 | 99 |
| 710 | Plant Taxonomy | 44 | 919 | 42 | 65 |
| 712 | food industry | 20 | 912 | 64 | 19 |
| 713 | Immunochemistry | 42 | 910 | 82 | 142 |
| 714 | Urban Policy | 101 | 907 | 7 | 109 |
| 714 | Industrial Safety | 51 | 907 | 87 | 161 |
| 714 | Nanobiotechnology | 9 | 907 | 135 | 75 |
| 714 | Biometrics | 57 | 907 | 140 | 253 |
| 718 | Drying | 39 | 906 | 20 | 35 |
| 719 | Animal genetics | 47 | 896 | 89 | 126 |
| 720 | Birds | 42 | 890 | 230 | 204 |
| 721 | Telecommunication | 46 | 889 | 578 | 755 |
| 722 | pottery | 38 | 885 | 204 | 281 |
| 722 | Solar System | 26 | 885 | 242 | 253 |
| 724 | Zeolites | 31 | 883 | 109 | 200 |
| 724 | Hospitals | 25 | 883 | 136 | 105 |
| 726 | Animal health | 83 | 882 | 11 | 18 |
| 727 | Earthquake Engineering | 42 | 879 | 264 | 379 |
| 728 | pheromones | 34 | 876 | 61 | 114 |
| 729 | Sites | 17 | 865 | 159 | 150 |
| 730 | Astrocytes | 9 | 852 | 229 | 166 |
| 731 | Radiochemistry | 107 | 851 | 52 | 111 |
| 732 | Herpetology | 55 | 844 | 5 | 5 |
| 733 | Ornithology | 39 | 843 | 179 | 169 |
| 734 | Reptiles | 52 | 838 | 6 | 5 |
| 735 | Systems Analysis | 40 | 837 | 101 | 132 |
| 736 | biopolymers | 27 | 836 | 316 | 328 |
| 737 | atmosphere | 30 | 831 | 101 | 130 |
| 737 | Hearing | 21 | 831 | 196 | 140 |
| 739 | older people | 77 | 827 | 199 | 253 |
| 740 | Metallography | 36 | 825 | 87 | 122 |
| 741 | herbicides | 57 | 818 | 10 | 36 |
| 742 | Nuclear Fusion | 40 | 804 | 142 | 136 |
| 743 | Control Theory | 52 | 803 | 303 | 420 |
| 744 | Smart Materials | 32 | 801 | 93 | 122 |
| 744 | Nanoparticles | 53 | 801 | 240 | 600 |
| 746 | Philosophy | 361 | 798 | 19 | 212 |
| 747 | Educational Technology | 26 | 796 | 313 | 270 |
| 748 | Population | 30 | 795 | 186 | 203 |
| 749 | Pesticides | 60 | 792 | 27 | 66 |
| 750 | Nanochemistry | 44 | 788 | 88 | 115 |
| 751 | women | 133 | 784 | 4 | 43 |
| 752 | cosmetics | 28 | 780 | 5 | 9 |
| 753 | Soil Mechanics | 49 | 770 | 196 | 378 |
| 753 | Combinatorial analysis | 49 | 770 | 141 | 108 |
| 753 | impact | 17 | 770 | 82 | 78 |
| 756 | Food Preservation | 37 | 768 | 60 | 55 |
| 757 | Marine resources | 33 | 766 | 54 | 86 |
| 758 | Software Engineering | 43 | 764 | 144 | 264 |
| 759 | water supply | 17 | 761 | 320 | 322 |
| 760 | computer networks | 42 | 758 | 522 | 729 |
| 761 | Social Psychology | 23 | 756 | 669 | 713 |
| 762 | Andrology | 24 | 750 | 119 | 99 |
| 763 | Multivariate Analysis | 12 | 747 | 166 | 86 |
| 764 | Elderly | 58 | 744 | 192 | 130 |
| 765 | Apoptosis | 31 | 742 | 12 | 21 |
| 765 | neurotoxins | 31 | 742 | 12 | 21 |
| 765 | Neurotoxic agents | 31 | 742 | 12 | 21 |
| 765 | Nerve regeneration | 31 | 742 | 12 | 21 |
| 769 | Coastal zone management | 32 | 740 | 49 | 88 |
| 770 | freshwater biology | 23 | 736 | 200 | 227 |
| 771 | Fluorescence | 37 | 733 | 9 | 4 |
| 772 | Mental Health | 58 | 728 | 205 | 363 |
| 773 | Pediatric Dermatology | 23 | 724 | 83 | 42 |
| 774 | Orthopedic Surgery | 18 | 723 | 235 | 180 |
| 775 | software | 29 | 722 | 121 | 223 |
| 776 | Lipid metabolism | 19 | 721 | 56 | 102 |
| 776 | Lipid | 19 | 721 | 57 | 103 |
| 778 | eye | 10 | 715 | 55 | 132 |
| 779 | Rock Mechanics | 44 | 708 | 141 | 297 |
| 780 | Decision making | 34 | 707 | 246 | 382 |
| 781 | commerce | 54 | 706 | 116 | 432 |
| 782 | Eating Disorders | 34 | 703 | 152 | 245 |
| 783 | Structural optimization | 31 | 701 | 32 | 79 |
| 784 | health services accessibility | 23 | 700 | 207 | 185 |
| 785 | cell membrane | 16 | 697 | 210 | 217 |
| 786 | Energy Conversion | 18 | 694 | 492 | 688 |
| 787 | Intelligent Transportation Systems | 14 | 692 | 428 | 342 |
| 788 | world | 22 | 686 | 151 | 267 |
| 788 | Pregnancy | 31 | 686 | 108 | 158 |
| 790 | atmospheric models | 27 | 682 | 164 | 279 |
| 790 | Cerebral cortex | 16 | 682 | 346 | 386 |
| 792 | social science | 7 | 680 | 63 | 49 |
| 792 | Detectors | 36 | 680 | 268 | 327 |
| 794 | Soft Condensed Matter | 38 | 679 | 227 | 349 |
| 795 | Lung Transplantation | 10 | 678 | 192 | 143 |
| 795 | Heart transplantation | 10 | 678 | 192 | 143 |
| 797 | supercritical fluids | 18 | 676 | 95 | 93 |
| 798 | Respiratory system | 22 | 674 | 120 | 136 |
| 799 | Geotechnical Engineering | 37 | 673 | 110 | 170 |
| 799 | synthesis | 56 | 673 | 50 | 72 |
| 801 | Exercise therapy | 50 | 668 | 6 | 20 |
| 802 | Globalization | 21 | 666 | 76 | 81 |
| 803 | nuclear magnetic resonance spectroscopy | 58 | 661 | 43 | 145 |
| 804 | movement | 39 | 660 | 11 | 47 |
| 805 | Product Design | 37 | 659 | 82 | 77 |
| 806 | Public opinion | 50 | 656 | 11 | 80 |
| 807 | livestock | 54 | 652 | 48 | 67 |
| 807 | public opinion polls | 49 | 652 | 2 | 3 |
| 809 | Hemostasis | 24 | 648 | 139 | 132 |
| 810 | Coral reef biology | 21 | 646 | 61 | 87 |
| 811 | Feeding and Eating Disorders | 33 | 645 | 146 | 245 |
| 811 | Mechanics | 36 | 645 | 215 | 258 |
| 813 | Developmental Disabilities | 20 | 644 | 298 | 365 |
| 814 | Retina | 8 | 642 | 60 | 143 |
| 815 | Cognitive Science | 29 | 640 | 323 | 540 |
| 815 | Multiple sclerosis | 22 | 640 | 100 | 44 |
| 817 | Information Systems | 45 | 639 | 114 | 336 |
| 818 | Linguistics | 395 | 637 | 6 | 309 |
| 818 | Bifurcation Theory | 50 | 637 | 29 | 79 |
| 820 | radiative transfer | 45 | 636 | 53 | 111 |
| 821 | soil conservation | 22 | 635 | 103 | 118 |
| 822 | Development | 22 | 628 | 170 | 269 |
| 823 | Tourism | 131 | 624 | 52 | 590 |
| 823 | drug abuse | 20 | 624 | 160 | 127 |
| 825 | Hematopoietic stem cell transplantation | 16 | 622 | 71 | 96 |
| 826 | risk factors | 23 | 621 | 158 | 215 |
| 827 | sexual behavior | 34 | 619 | 78 | 166 |
| 828 | Algal blooms | 11 | 616 | 85 | 105 |
| 828 | Cyanobacteria | 11 | 616 | 85 | 105 |
| 828 | microalgae | 11 | 616 | 85 | 105 |
| 831 | optical devices | 18 | 612 | 84 | 36 |
| 832 | Human Geography | 125 | 610 | 53 | 274 |
| 833 | Radiobiology | 39 | 607 | 318 | 560 |
| 834 | Social policy | 48 | 602 | 89 | 188 |
| 834 | Water Microbiology | 43 | 602 | 9 | 62 |
| 836 | Petroleum Engineering | 34 | 596 | 155 | 191 |
| 837 | natural disasters | 22 | 595 | 279 | 366 |
| 838 | Mental Health Services | 28 | 594 | 306 | 323 |
| 839 | Bacterial diseases | 19 | 589 | 17 | 36 |
| 840 | pharmaceutical industry | 25 | 586 | 57 | 62 |
| 841 | Plant Genetics | 18 | 585 | 198 | 342 |
| 842 | Plant genetic engineering | 15 | 582 | 342 | 379 |
| 843 | Organometallic compounds | 23 | 581 | 380 | 409 |
| 844 | Amphibians | 38 | 578 | 10 | 5 |
| 845 | Sound | 26 | 576 | 227 | 255 |
| 846 | biological invasions | 18 | 575 | 118 | 147 |
| 847 | Developmental Neurobiology | 32 | 574 | 29 | 87 |
| 847 | international cooperation | 16 | 574 | 152 | 148 |
| 849 | Asthma | 34 | 571 | 58 | 110 |
| 849 | Primary health care | 41 | 571 | 302 | 452 |
| 851 | rare diseases | 19 | 570 | 138 | 178 |
| 852 | Agricultural Science | 5 | 567 | 121 | 108 |
| 853 | Measurement | 31 | 564 | 206 | 280 |
| 854 | Religion and Psychology | 18 | 562 | 57 | 20 |
| 855 | economic conditions | 32 | 558 | 79 | 148 |
| 856 | Transgenic plants | 15 | 557 | 119 | 133 |
| 857 | Marine Biotechnology | 19 | 553 | 22 | 38 |
| 858 | Literature | 524 | 552 | 1 | 4 |
| 859 | Entropy | 74 | 547 | 17 | 112 |
| 860 | Cryptography | 9 | 544 | 277 | 58 |
| 861 | Economic Thought | 7 | 543 | 149 | 136 |
| 861 | Neuroplasticity | 19 | 543 | 38 | 46 |
| 863 | Geomagnetism | 16 | 542 | 255 | 211 |
| 863 | Economic Assistance | 16 | 542 | 185 | 267 |
| 865 | Veterinary Immunology | 22 | 541 | 76 | 92 |
| 866 | nuclear astrophysics | 40 | 539 | 31 | 156 |
| 867 | History of Medicine | 120 | 538 | 6 | 22 |
| 868 | Ergonomics | 24 | 533 | 273 | 268 |
| 868 | neuronal plasticity | 18 | 533 | 25 | 30 |
| 868 | glycoproteins | 17 | 533 | 108 | 165 |
| 868 | Glycoconjugates | 17 | 533 | 108 | 165 |
| 868 | glycolipids | 17 | 533 | 108 | 165 |
| 873 | Pharmacogenomics | 21 | 531 | 18 | 56 |
| 874 | vitamin C | 29 | 530 | 17 | 108 |
| 874 | vitamin E | 29 | 530 | 17 | 108 |
| 876 | Fishery management | 31 | 524 | 142 | 194 |
| 877 | Socioeconomic Factors | 18 | 521 | 182 | 187 |
| 878 | Geriatric Pharmacology | 5 | 518 | 191 | 51 |
| 878 | RNA | 14 | 518 | 174 | 227 |
| 880 | Random graphs | 24 | 517 | 31 | 32 |
| 881 | Nuclear Medicine | 27 | 516 | 257 | 371 |
| 882 | air quality | 14 | 515 | 14 | 12 |
| 882 | Chemical processes | 31 | 515 | 77 | 117 |
| 884 | Intelligent Control Systems | 22 | 514 | 185 | 119 |
| 885 | magnetic resonance | 44 | 511 | 18 | 50 |
| 886 | Travel | 30 | 510 | 110 | 141 |
| 886 | NMR | 42 | 510 | 18 | 49 |
| 888 | Speech Disorders | 25 | 509 | 280 | 351 |
| 888 | Bones | 20 | 509 | 214 | 382 |
| 890 | Ultrasound | 27 | 508 | 142 | 210 |
| 891 | Solar power plants | 8 | 507 | 89 | 69 |
| 891 | Photovoltaic Cells | 8 | 507 | 89 | 69 |
| 893 | Molecular Pharmacology | 17 | 506 | 224 | 337 |
| 893 | Psychiatric Nursing | 21 | 506 | 123 | 91 |
| 895 | Demography | 9 | 502 | 322 | 222 |
| 895 | Smoking | 14 | 502 | 286 | 289 |
| 897 | Statistical models | 9 | 501 | 35 | 13 |
| 898 | Project Management | 7 | 500 | 123 | 140 |
| 898 | starch | 13 | 500 | 84 | 64 |
| 900 | Egypt | 9 | 499 | 120 | 83 |
| 901 | DNS | 24 | 498 | 42 | 99 |
| 902 | Analytical Toxicology | 24 | 494 | 23 | 30 |
| 903 | DNA repair | 16 | 493 | 63 | 83 |
| 904 | personality | 19 | 492 | 513 | 688 |
| 905 | recreation | 37 | 491 | 92 | 128 |
| 906 | Algorithms | 21 | 489 | 114 | 114 |
| 907 | wildlife diseases | 13 | 485 | 18 | 7 |
| 908 | Bone diseases | 18 | 483 | 87 | 237 |
| 908 | biological monitoring | 13 | 483 | 113 | 116 |
| 910 | Drug delivery devices | 7 | 480 | 72 | 62 |
| 911 | Human evolution | 18 | 478 | 117 | 178 |
| 911 | Estuaries | 3 | 478 | 141 | 66 |
| 911 | child abuse | 16 | 478 | 258 | 331 |
| 914 | embryonic development | 20 | 477 | 63 | 123 |
| 914 | Discrete geometry | 6 | 477 | 149 | 38 |
| 916 | Energy Storage | 21 | 474 | 387 | 535 |
| 917 | Aerosols | 13 | 473 | 215 | 179 |
| 918 | water resources | 14 | 471 | 86 | 70 |
| 919 | Urbanization | 22 | 470 | 14 | 30 |
| 919 | Ferroelectricity | 31 | 470 | 212 | 233 |
| 921 | Graph Theory | 41 | 469 | 83 | 103 |
| 922 | Teaching | 110 | 459 | 84 | 511 |
| 922 | Africa | 43 | 459 | 219 | 294 |
| 924 | International Relations | 30 | 457 | 269 | 273 |
| 925 | Technology Assessment | 21 | 456 | 15 | 72 |
| 925 | Vision | 11 | 456 | 313 | 307 |
| 927 | Psychosomatic Medicine | 17 | 454 | 236 | 338 |
| 927 | Wireless Communication Systems | 29 | 454 | 730 | 898 |
| 929 | Fuzzy systems | 50 | 453 | 121 | 316 |
| 930 | Molecular Imaging | 17 | 452 | 218 | 324 |
| 931 | Biological Systems | 21 | 450 | 100 | 155 |
| 931 | Metallic Glasses | 13 | 450 | 158 | 144 |
| 931 | Multimedia Systems | 41 | 450 | 265 | 499 |
| 931 | Microwaves | 30 | 450 | 432 | 466 |
| 935 | Electrophysiology | 26 | 449 | 245 | 300 |
| 936 | Superconductors | 50 | 446 | 172 | 251 |
| 937 | Cognitive neuroscience | 15 | 444 | 398 | 530 |
| 938 | DNA polymerases | 8 | 443 | 223 | 412 |
| 939 | Geriatric Oncology | 18 | 442 | 126 | 205 |
| 940 | Organizational change | 33 | 441 | 40 | 178 |
| 940 | Electron Microscopy | 11 | 441 | 140 | 55 |
| 942 | Radio frequency | 21 | 439 | 125 | 147 |
| 943 | Sedimentary rocks | 21 | 438 | 107 | 218 |
| 944 | eugenics | 22 | 437 | 82 | 130 |
| 945 | Otolaryngology | 14 | 436 | 182 | 172 |
| 945 | Logic | 43 | 436 | 28 | 65 |
| 945 | Long-Term Care | 11 | 436 | 203 | 246 |
| 945 | Long-term care facilities | 11 | 436 | 200 | 245 |
| 949 | fuel cells | 16 | 434 | 537 | 742 |
| 950 | Risk assessment | 22 | 430 | 66 | 73 |
| 951 | Ecophysiology | 24 | 428 | 4 | 20 |
| 952 | Chemical Oceanography | 5 | 425 | 203 | 154 |
| 953 | health behavior | 19 | 423 | 277 | 348 |
| 953 | solar power | 14 | 423 | 236 | 398 |
| 955 | soil pollution | 12 | 422 | 120 | 89 |
| 956 | cycles | 26 | 421 | 7 | 5 |
| 957 | nutrition policy | 67 | 418 | 1 | 1 |
| 958 | Econometrics | 43 | 416 | 249 | 521 |
| 958 | Oral Pathology | 13 | 416 | 8 | 16 |
| 960 | Coding Theory | 7 | 415 | 184 | 32 |
| 961 | Mutagenesis | 20 | 413 | 45 | 76 |
| 962 | Political Sociology | 62 | 411 | 17 | 145 |
| 962 | Genetic algorithms | 12 | 411 | 95 | 217 |
| 964 | Neonatology | 27 | 410 | 63 | 170 |
| 965 | biochemical markers | 28 | 409 | 73 | 158 |
| 966 | calcification | 14 | 407 | 173 | 228 |
| 967 | Agricultural Engineering | 21 | 406 | 92 | 139 |
| 967 | Functional Genomics | 13 | 406 | 68 | 117 |
| 969 | Marine algae | 24 | 405 | 5 | 12 |
| 970 | Research Design | 23 | 404 | 290 | 514 |
| 971 | Kinetics | 28 | 402 | 32 | 81 |
| 972 | toxicity testing | 19 | 400 | 120 | 232 |
| 973 | women's rights | 12 | 399 | 34 | 18 |
| 973 | DNA | 22 | 399 | 63 | 126 |
| 975 | Extreme environments | 9 | 397 | 67 | 65 |
| 976 | Elementary particles | 4 | 396 | 124 | 111 |
| 977 | Quantum theory | 42 | 394 | 97 | 307 |
| 978 | Ecosystem management | 14 | 393 | 222 | 285 |
| 978 | Probiotics | 23 | 393 | 4 | 21 |
| 980 | Business Ethics | 7 | 392 | 573 | 636 |
| 981 | Health Services Research | 31 | 391 | 354 | 639 |
| 981 | weight loss | 4 | 391 | 103 | 22 |
| 983 | Marine biodiversity | 47 | 390 | 6 | 21 |
| 984 | Reproductive toxicology | 18 | 389 | 63 | 165 |
| 985 | Occupational Therapy | 47 | 388 | 123 | 181 |
| 985 | Evolutionary Computation | 23 | 388 | 68 | 279 |
| 985 | Paleoceanography | 9 | 388 | 93 | 141 |
| 988 | Nuclear Engineering | 43 | 387 | 380 | 503 |
| 988 | X-ray crystallography | 52 | 387 | 49 | 147 |
| 988 | Middle East | 13 | 387 | 351 | 147 |
| 991 | Highway Engineering | 21 | 385 | 84 | 105 |
| 991 | Spine | 16 | 385 | 247 | 370 |
| 993 | Bibliometrics | 11 | 382 | 30 | 48 |
| 993 | structural stability | 14 | 382 | 148 | 159 |
| 993 | Asia | 23 | 382 | 807 | 769 |
| 996 | Emulsions | 27 | 381 | 38 | 39 |
| 997 | Kinesiology | 25 | 380 | 3 | 13 |
| 997 | Paleobiology | 24 | 380 | 44 | 31 |
| 997 | Marine invertebrates | 31 | 380 | 9 | 15 |
| 1000 | Developmental Psychology | 9 | 379 | 544 | 516 |