| 1 | Astrophysics | 2,757 | 177.4K | 40 | 57 |
| 2 | Astronomy | 3,020 | 166.1K | 23 | 37 |
| 3 | Physics | 2,660 | 152.3K | 142 | 200 |
| 4 | Biology | 1,918 | 134.2K | 134 | 200 |
| 5 | Science | 1,365 | 100.1K | 224 | 255 |
| 6 | Chemistry | 2,017 | 92.0K | 179 | 257 |
| 7 | Neurology | 1,112 | 62.8K | 134 | 154 |
| 8 | Medicine | 947 | 62.8K | 336 | 252 |
| 9 | Natural history | 217 | 48.1K | 231 | 245 |
| 10 | Molecular Biology | 1,029 | 46.9K | 230 | 302 |
| 11 | Spectrum analysis | 902 | 45.2K | 95 | 141 |
| 12 | Cytology | 302 | 31.1K | 302 | 210 |
| 13 | Ecology | 625 | 29.5K | 220 | 297 |
| 14 | Human genetics | 177 | 27.5K | 151 | 190 |
| 15 | Nuclear Physics | 1,031 | 26.3K | 208 | 311 |
| 16 | Microbiology | 467 | 24.7K | 343 | 350 |
| 17 | Geophysics | 961 | 23.2K | 68 | 143 |
| 18 | Earth Sciences | 371 | 22.4K | 44 | 46 |
| 19 | Cell Biology | 201 | 22.4K | 358 | 265 |
| 20 | Research | 623 | 20.2K | 375 | 401 |
| 21 | Biochemistry | 729 | 19.4K | 524 | 661 |
| 22 | Medical genetics | 379 | 17.4K | 91 | 145 |
| 23 | Virology | 63 | 16.7K | 521 | 233 |
| 24 | Materials | 358 | 16.6K | 485 | 420 |
| 25 | Quantum Gravity | 431 | 15.1K | 142 | 193 |
| 26 | Critical Care Medicine | 363 | 13.6K | 19 | 83 |
| 27 | Critical Care | 363 | 13.5K | 17 | 84 |
| 28 | Immunology | 139 | 13.5K | 375 | 245 |
| 29 | Microbial Ecology | 213 | 13.1K | 77 | 116 |
| 30 | Genetics | 215 | 12.8K | 266 | 275 |
| 31 | Immunity | 83 | 12.7K | 226 | 174 |
| 32 | Condensed Matter | 503 | 12.6K | 217 | 300 |
| 33 | Surgery | 77 | 12.2K | 220 | 187 |
| 34 | Nanotechnology | 512 | 12.2K | 192 | 441 |
| 35 | Public Health | 187 | 11.8K | 468 | 300 |
| 36 | Materials Science | 246 | 11.8K | 344 | 315 |
| 37 | Cancer | 167 | 11.4K | 296 | 247 |
| 38 | Biophysics | 434 | 11.3K | 321 | 415 |
| 39 | Environment | 217 | 11.2K | 363 | 505 |
| 40 | Neurophysiology | 237 | 11.0K | 199 | 237 |
| 41 | Nervous system | 250 | 10.8K | 81 | 134 |
| 42 | Pharmacology | 161 | 10.8K | 640 | 383 |
| 43 | transport vesicles | 6 | 10.7K | 97 | 100 |
| 44 | Planets | 395 | 9.9K | 54 | 120 |
| 45 | Catalysis | 354 | 9.8K | 205 | 378 |
| 46 | Biodiversity | 244 | 9.3K | 19 | 81 |
| 47 | Hematology | 204 | 9.1K | 234 | 240 |
| 48 | Climatology | 209 | 9.1K | 74 | 107 |
| 49 | diseases | 13 | 9.0K | 71 | 44 |
| 50 | Disease | 12 | 9.0K | 74 | 42 |
| 51 | Statistical physics | 676 | 8.9K | 75 | 268 |
| 52 | Pollution | 202 | 8.8K | 467 | 567 |
| 53 | Computational Biology | 200 | 8.7K | 96 | 160 |
| 54 | Pharmaceutical Chemistry | 119 | 8.6K | 423 | 227 |
| 55 | Psychiatry | 222 | 8.5K | 313 | 368 |
| 56 | Psychophysiology | 170 | 8.4K | 287 | 268 |
| 57 | Solid State Physics | 485 | 8.3K | 246 | 387 |
| 58 | Developmental Biology | 199 | 8.2K | 115 | 185 |
| 59 | Ophthalmology | 180 | 8.0K | 98 | 89 |
| 60 | biological evolution | 223 | 7.9K | 79 | 209 |
| 61 | Alzheimer's disease | 227 | 7.8K | 62 | 58 |
| 62 | Oceanography | 283 | 7.0K | 62 | 128 |
| 63 | Immunotherapy | 137 | 6.7K | 79 | 126 |
| 64 | Botany | 202 | 6.7K | 382 | 468 |
| 65 | Atmospheric Physics | 279 | 6.5K | 60 | 150 |
| 66 | Behavior | 135 | 6.5K | 316 | 342 |
| 67 | Neurobiology | 138 | 6.4K | 130 | 175 |
| 68 | Cerebral cortex | 120 | 6.3K | 33 | 45 |
| 69 | Allergy | 97 | 6.3K | 84 | 137 |
| 70 | Environmental Microbiology | 124 | 6.2K | 20 | 64 |
| 71 | Molecular ecology | 91 | 6.2K | 70 | 89 |
| 72 | Endocrinology | 115 | 6.2K | 373 | 367 |
| 73 | nucleic acids | 88 | 6.1K | 208 | 237 |
| 74 | drug development | 42 | 6.1K | 94 | 69 |
| 75 | Medical innovations | 47 | 6.1K | 84 | 73 |
| 76 | Diabetes | 88 | 6.1K | 249 | 203 |
| 77 | Liver diseases | 62 | 6.0K | 217 | 181 |
| 78 | Dementia | 196 | 6.0K | 66 | 61 |
| 79 | Marine Biology | 238 | 6.0K | 102 | 178 |
| 80 | Oncology | 79 | 5.9K | 225 | 311 |
| 81 | Meteorology | 197 | 5.8K | 161 | 235 |
| 82 | Diabetes mellitus | 78 | 5.7K | 245 | 201 |
| 83 | Environmental Health | 189 | 5.7K | 422 | 609 |
| 84 | Biotechnology | 151 | 5.6K | 658 | 784 |
| 85 | Biogeochemistry | 167 | 5.6K | 19 | 82 |
| 86 | Geochemical Modeling | 55 | 5.5K | 14 | 8 |
| 86 | geological modeling | 55 | 5.5K | 16 | 8 |
| 88 | Mathematics | 729 | 5.4K | 201 | 459 |
| 89 | Biodiversity conservation | 90 | 5.4K | 137 | 249 |
| 90 | Metabolic diseases | 110 | 5.3K | 247 | 299 |
| 91 | Aging | 120 | 5.2K | 266 | 213 |
| 92 | Bioengineering | 142 | 5.1K | 399 | 567 |
| 93 | Geochemistry | 239 | 5.0K | 104 | 255 |
| 94 | Cell death | 80 | 5.0K | 95 | 155 |
| 95 | Neuropsychology | 123 | 5.0K | 205 | 200 |
| 96 | Cardiovascular system | 79 | 4.9K | 222 | 288 |
| 97 | atmospheric models | 152 | 4.9K | 17 | 50 |
| 98 | Molecular Genetics | 118 | 4.9K | 118 | 187 |
| 99 | Immune system | 22 | 4.9K | 253 | 162 |
| 100 | Biocompatible Materials | 169 | 4.8K | 386 | 624 |
| 101 | Genomics | 178 | 4.8K | 161 | 268 |
| 102 | genome | 55 | 4.8K | 191 | 208 |
| 103 | Metabolism | 144 | 4.8K | 265 | 399 |
| 104 | Artificial Intelligence | 125 | 4.7K | 324 | 337 |
| 105 | Host-parasite interactions | 38 | 4.7K | 220 | 154 |
| 106 | Geology | 309 | 4.7K | 172 | 365 |
| 107 | Atmospheric Chemistry | 178 | 4.6K | 57 | 145 |
| 108 | Colloids | 288 | 4.6K | 199 | 518 |
| 109 | Polymers | 273 | 4.6K | 380 | 586 |
| 110 | Climate change | 44 | 4.6K | 147 | 231 |
| 110 | Eutrophication | 44 | 4.6K | 141 | 229 |
| 112 | Evolution | 219 | 4.6K | 71 | 261 |
| 113 | Optics | 254 | 4.6K | 356 | 406 |
| 114 | Nanostructured Materials | 253 | 4.5K | 158 | 401 |
| 115 | Quantum theory | 141 | 4.5K | 23 | 20 |
| 116 | Neurons | 31 | 4.5K | 132 | 179 |
| 117 | Pediatric Neurology | 64 | 4.5K | 100 | 126 |
| 118 | mycoses | 30 | 4.4K | 99 | 57 |
| 119 | Hypertension | 63 | 4.4K | 269 | 284 |
| 120 | Bacterial infections | 26 | 4.4K | 128 | 61 |
| 121 | nanoscience | 168 | 4.3K | 190 | 426 |
| 122 | Electrochemistry | 245 | 4.1K | 347 | 467 |
| 123 | Rheumatology | 67 | 4.1K | 122 | 102 |
| 124 | Population Genetics | 86 | 4.1K | 93 | 126 |
| 125 | Molecular evolution | 126 | 4.0K | 57 | 143 |
| 126 | Mental Disorders | 124 | 3.8K | 272 | 404 |
| 127 | Nonlinear Dynamics | 292 | 3.8K | 62 | 227 |
| 128 | Cytogenetics | 60 | 3.7K | 165 | 191 |
| 129 | Systems Biology | 109 | 3.7K | 52 | 56 |
| 130 | Cell differentiation | 76 | 3.5K | 210 | 302 |
| 131 | Mathematical Physics | 262 | 3.4K | 150 | 309 |
| 132 | Medical Microbiology | 103 | 3.4K | 232 | 327 |
| 133 | Diagnostic Imaging | 114 | 3.4K | 126 | 148 |
| 134 | Radiation | 109 | 3.4K | 108 | 80 |
| 135 | Analytical Chemistry | 125 | 3.4K | 630 | 729 |
| 136 | Biomedical Engineering | 134 | 3.3K | 578 | 713 |
| 137 | Protozoa | 47 | 3.3K | 19 | 17 |
| 138 | Photonics | 128 | 3.2K | 162 | 304 |
| 139 | Renewable Energy Sources | 31 | 3.1K | 676 | 501 |
| 140 | Chemical Engineering | 73 | 3.1K | 1,001 | 935 |
| 141 | human behavior | 46 | 3.1K | 506 | 474 |
| 142 | Algae | 111 | 3.1K | 19 | 40 |
| 143 | Cognitive Science | 44 | 3.0K | 231 | 191 |
| 144 | Surface Chemistry | 182 | 3.0K | 346 | 673 |
| 145 | radiative transfer | 76 | 3.0K | 32 | 38 |
| 146 | Cognition | 80 | 2.9K | 251 | 272 |
| 147 | miniaturization | 89 | 2.9K | 178 | 343 |
| 148 | Environmental Engineering | 60 | 2.9K | 634 | 598 |
| 149 | Microelectronics | 88 | 2.9K | 186 | 299 |
| 150 | Health | 37 | 2.8K | 422 | 197 |
| 151 | Zoology | 180 | 2.8K | 125 | 257 |
| 152 | fuel cells | 50 | 2.7K | 176 | 200 |
| 153 | Information Theory | 55 | 2.7K | 196 | 133 |
| 154 | Solar System | 173 | 2.7K | 33 | 98 |
| 155 | Geriatrics | 67 | 2.7K | 452 | 363 |
| 156 | Cell metabolism | 13 | 2.6K | 203 | 166 |
| 157 | Physiology | 111 | 2.6K | 586 | 739 |
| 158 | Homeostasis | 12 | 2.6K | 149 | 157 |
| 159 | Mental illness | 71 | 2.6K | 249 | 353 |
| 160 | arthritis | 71 | 2.6K | 148 | 216 |
| 161 | environmental pollution | 122 | 2.6K | 486 | 876 |
| 162 | Psychology | 75 | 2.6K | 871 | 749 |
| 162 | Bioinformatics | 69 | 2.6K | 252 | 329 |
| 164 | Human-Computer Interaction | 45 | 2.5K | 149 | 80 |
| 165 | Pathology | 87 | 2.5K | 290 | 374 |
| 166 | Environmental Policy | 54 | 2.5K | 578 | 598 |
| 167 | Autoimmunity | 54 | 2.4K | 52 | 84 |
| 168 | infection | 97 | 2.4K | 97 | 210 |
| 169 | Obesity | 54 | 2.3K | 326 | 325 |
| 170 | Europe | 142 | 2.3K | 235 | 349 |
| 171 | soil microbiology | 53 | 2.3K | 210 | 306 |
| 172 | Bone diseases | 16 | 2.3K | 105 | 58 |
| 173 | Neurosurgery | 59 | 2.3K | 73 | 92 |
| 174 | Leukemia | 73 | 2.2K | 100 | 194 |
| 175 | Energy Conversion | 41 | 2.2K | 221 | 332 |
| 176 | Nutrition | 57 | 2.2K | 831 | 795 |
| 177 | Environmental monitoring | 63 | 2.2K | 613 | 790 |
| 178 | Seaweed | 71 | 2.2K | 21 | 39 |
| 179 | Animal Behavior | 47 | 2.2K | 429 | 405 |
| 180 | Infections | 73 | 2.1K | 76 | 169 |
| 181 | polymerization | 124 | 2.1K | 564 | 775 |
| 182 | Optical materials | 89 | 2.1K | 344 | 582 |
| 183 | Ethology | 37 | 2.1K | 385 | 349 |
| 183 | Meteorites | 96 | 2.1K | 102 | 254 |
| 185 | eye | 17 | 2.1K | 26 | 38 |
| 186 | Retina | 15 | 2.1K | 22 | 39 |
| 187 | Microorganisms | 43 | 2.0K | 101 | 183 |
| 188 | Cognitive neuroscience | 46 | 2.0K | 176 | 253 |
| 189 | Brain | 54 | 2.0K | 593 | 594 |
| 190 | Soft Condensed Matter | 135 | 2.0K | 39 | 144 |
| 191 | global environmental change | 38 | 2.0K | 83 | 111 |
| 192 | Plants | 40 | 2.0K | 430 | 458 |
| 193 | biopolymers | 124 | 1.9K | 42 | 161 |
| 194 | Neurochemistry | 57 | 1.9K | 485 | 520 |
| 195 | Sleep | 96 | 1.9K | 112 | 213 |
| 196 | Anatomy | 96 | 1.9K | 208 | 357 |
| 197 | Physical Chemistry | 76 | 1.9K | 323 | 474 |
| 197 | Sleep Disorders | 96 | 1.9K | 114 | 218 |
| 199 | Water pollution | 89 | 1.9K | 321 | 615 |
| 200 | Environmental Management | 71 | 1.9K | 343 | 640 |
| 201 | Epidemiology | 146 | 1.9K | 321 | 651 |
| 202 | Psychopharmacology | 33 | 1.8K | 360 | 326 |
| 203 | environmental protection | 38 | 1.8K | 822 | 683 |
| 204 | Fluid Mechanics | 30 | 1.8K | 379 | 195 |
| 205 | Engineering | 104 | 1.8K | 464 | 573 |
| 206 | Toxicology | 69 | 1.8K | 877 | 1,033 |
| 207 | Molecular structure | 47 | 1.8K | 421 | 377 |
| 208 | Economics | 54 | 1.8K | 1,026 | 774 |
| 209 | Drug design | 34 | 1.7K | 225 | 154 |
| 210 | Parasitic Diseases | 65 | 1.7K | 191 | 262 |
| 211 | Plasma devices | 42 | 1.7K | 34 | 43 |
| 212 | Green Chemistry | 41 | 1.7K | 345 | 431 |
| 213 | Mycology | 37 | 1.7K | 324 | 265 |
| 214 | energy development | 7 | 1.7K | 440 | 184 |
| 215 | Embryology | 66 | 1.7K | 227 | 376 |
| 216 | Clinical Chemistry | 77 | 1.7K | 385 | 555 |
| 217 | Biogeography | 54 | 1.7K | 98 | 230 |
| 218 | rare diseases | 63 | 1.7K | 17 | 49 |
| 219 | Transplantation | 50 | 1.7K | 169 | 227 |
| 220 | Electronics | 61 | 1.6K | 703 | 637 |
| 221 | Mineralogy | 93 | 1.6K | 144 | 293 |
| 222 | Paleontology | 206 | 1.6K | 25 | 183 |
| 223 | Biochemical Engineering | 28 | 1.6K | 1,080 | 1,119 |
| 224 | ecosystem | 64 | 1.5K | 100 | 297 |
| 225 | Neural circuitry | 37 | 1.5K | 368 | 336 |
| 226 | Dermatology | 58 | 1.5K | 271 | 293 |
| 227 | Clinical Immunology | 70 | 1.5K | 93 | 164 |
| 228 | Biogeochemical cycles | 38 | 1.5K | 50 | 124 |
| 229 | Quantum Communication | 19 | 1.5K | 20 | 10 |
| 230 | Urology | 97 | 1.5K | 180 | 321 |
| 231 | Fungi | 15 | 1.4K | 380 | 219 |
| 232 | Molecules | 97 | 1.4K | 124 | 279 |
| 233 | Growth | 49 | 1.4K | 199 | 373 |
| 234 | Pharmacogenetics | 23 | 1.4K | 206 | 149 |
| 235 | Bacteriology | 28 | 1.4K | 524 | 541 |
| 236 | Energy Storage | 35 | 1.4K | 214 | 242 |
| 237 | Bioorganic chemistry | 53 | 1.4K | 555 | 671 |
| 238 | Radio | 40 | 1.3K | 328 | 371 |
| 239 | Image Processing | 55 | 1.3K | 376 | 531 |
| 240 | Signal Processing | 57 | 1.3K | 511 | 643 |
| 241 | Nuclear Medicine | 26 | 1.3K | 239 | 165 |
| 241 | Cosmology | 23 | 1.3K | 133 | 91 |
| 243 | Oxidation-reduction | 11 | 1.3K | 339 | 228 |
| 244 | Organic Chemistry | 61 | 1.3K | 712 | 820 |
| 245 | Molecular Imaging | 23 | 1.3K | 156 | 133 |
| 246 | Environmental Law | 20 | 1.3K | 294 | 322 |
| 247 | Sustainable Engineering | 28 | 1.3K | 386 | 386 |
| 248 | computer networks | 56 | 1.3K | 386 | 498 |
| 249 | Environmental Chemistry | 28 | 1.3K | 470 | 609 |
| 250 | Composite Materials | 42 | 1.3K | 669 | 840 |
| 251 | gene mapping | 43 | 1.2K | 338 | 500 |
| 251 | Phylogeny | 54 | 1.2K | 52 | 166 |
| 253 | Radiography | 20 | 1.2K | 215 | 229 |
| 254 | Diet | 25 | 1.2K | 574 | 601 |
| 255 | plant molecular biology | 24 | 1.2K | 464 | 543 |
| 256 | Computer Vision | 38 | 1.2K | 173 | 296 |
| 257 | Geography | 55 | 1.2K | 359 | 467 |
| 258 | Water | 54 | 1.2K | 462 | 826 |
| 259 | Computer Graphics | 46 | 1.2K | 299 | 338 |
| 260 | Telecommunication | 37 | 1.2K | 670 | 611 |
| 261 | Obstetrics | 56 | 1.2K | 410 | 484 |
| 262 | cell physiology | 23 | 1.2K | 452 | 471 |
| 263 | Quantum Computing | 27 | 1.2K | 16 | 17 |
| 264 | nuclear astrophysics | 19 | 1.1K | 117 | 86 |
| 265 | Sociology | 32 | 1.1K | 779 | 646 |
| 266 | Automation | 42 | 1.1K | 496 | 667 |
| 267 | gastrointestinal tract | 20 | 1.1K | 35 | 48 |
| 268 | Economic Development | 12 | 1.1K | 698 | 402 |
| 269 | Sustainable Development | 20 | 1.1K | 556 | 457 |
| 270 | Astrocytes | 33 | 1.1K | 36 | 124 |
| 271 | Petrology | 51 | 1.1K | 206 | 332 |
| 272 | Genetic engineering | 28 | 1.1K | 538 | 569 |
| 273 | sanitation | 23 | 1.1K | 488 | 646 |
| 274 | sustainability | 14 | 1.1K | 272 | 210 |
| 275 | Dynamics | 91 | 1.1K | 68 | 158 |
| 276 | Health Policy | 38 | 1.1K | 493 | 476 |
| 277 | Plant physiology | 24 | 1.1K | 727 | 718 |
| 278 | Light | 17 | 1.1K | 321 | 404 |
| 279 | Statistical Mechanics | 90 | 1.0K | 38 | 95 |
| 280 | Muscles | 34 | 1.0K | 131 | 187 |
| 281 | Wildlife conservation | 49 | 1.0K | 142 | 344 |
| 282 | Inflammation | 28 | 1.0K | 199 | 266 |
| 283 | Animal ecology | 75 | 1.0K | 116 | 300 |
| 284 | Soil biology | 32 | 999 | 202 | 334 |
| 285 | Soil Science | 59 | 997 | 246 | 495 |
| 286 | Cerebellum | 21 | 982 | 37 | 49 |
| 286 | Cerebellar ataxia | 21 | 982 | 37 | 49 |
| 288 | Paleoecology | 65 | 970 | 98 | 275 |
| 289 | Economic History | 31 | 968 | 965 | 675 |
| 290 | Marine Pollution | 44 | 962 | 137 | 321 |
| 291 | Entomology | 62 | 949 | 356 | 443 |
| 292 | Reproduction | 61 | 947 | 378 | 603 |
| 293 | Nanostructures | 28 | 944 | 478 | 583 |
| 294 | Hydrology | 59 | 942 | 391 | 674 |
| 295 | Stem cells | 43 | 939 | 257 | 421 |
| 296 | Geomagnetism | 47 | 931 | 93 | 137 |
| 297 | Robotics | 60 | 928 | 227 | 402 |
| 298 | United Kingdom | 15 | 924 | 577 | 442 |
| 299 | Signal Transduction | 10 | 910 | 703 | 496 |
| 300 | Virulence | 36 | 904 | 234 | 473 |
| 301 | Plant cells | 20 | 899 | 396 | 585 |
| 302 | behavioral medicine | 17 | 897 | 434 | 415 |
| 303 | Vaccines | 32 | 892 | 371 | 392 |
| 304 | Insects | 59 | 890 | 141 | 283 |
| 305 | probabilities | 146 | 886 | 44 | 191 |
| 306 | Cosmochemistry | 50 | 882 | 67 | 220 |
| 307 | free radicals | 29 | 879 | 297 | 508 |
| 308 | Kidney diseases | 26 | 877 | 175 | 183 |
| 309 | Chromosome mapping | 31 | 867 | 389 | 522 |
| 310 | environmental indicators | 32 | 856 | 122 | 263 |
| 311 | brain mapping | 28 | 845 | 137 | 227 |
| 312 | Information Technology | 15 | 843 | 995 | 665 |
| 313 | Energy Harvesting | 10 | 842 | 200 | 214 |
| 314 | Consciousness | 22 | 840 | 73 | 75 |
| 315 | Multimedia Systems | 32 | 834 | 364 | 296 |
| 316 | Metallurgy | 51 | 822 | 439 | 621 |
| 317 | visualization | 72 | 818 | 149 | 198 |
| 318 | freshwater biology | 27 | 817 | 150 | 194 |
| 319 | Ultrasonics | 36 | 807 | 185 | 314 |
| 320 | Antioxidants | 5 | 804 | 541 | 284 |
| 321 | Numerical Analysis | 92 | 800 | 195 | 495 |
| 322 | Medical Laboratory Science | 17 | 786 | 742 | 730 |
| 323 | Archaeology | 88 | 781 | 136 | 289 |
| 324 | Social Sciences | 44 | 780 | 730 | 769 |
| 325 | biological invasions | 19 | 779 | 115 | 103 |
| 326 | clay | 29 | 778 | 99 | 174 |
| 327 | rehabilitation | 36 | 772 | 452 | 610 |
| 328 | Hormones | 29 | 771 | 304 | 392 |
| 329 | Marine Ecology | 52 | 769 | 58 | 126 |
| 330 | fossil | 83 | 768 | 1 | 1 |
| 331 | Communication | 12 | 758 | 1,002 | 643 |
| 332 | Technology | 50 | 752 | 817 | 1,107 |
| 333 | Bioremediation | 8 | 751 | 391 | 114 |
| 334 | Magnetic Resonance Spectroscopy | 45 | 744 | 211 | 269 |
| 335 | nuclear magnetic resonance | 46 | 743 | 197 | 258 |
| 335 | mathematical analysis | 110 | 743 | 240 | 572 |
| 337 | Paleoclimatology | 48 | 742 | 168 | 378 |
| 338 | Algal blooms | 24 | 716 | 27 | 78 |
| 338 | Cyanobacteria | 24 | 716 | 27 | 78 |
| 338 | microalgae | 24 | 716 | 27 | 78 |
| 341 | drug therapy | 49 | 714 | 434 | 668 |
| 342 | Nanochemistry | 39 | 713 | 111 | 175 |
| 343 | Engineering Mathematics | 45 | 712 | 289 | 388 |
| 344 | Nephrology | 21 | 705 | 127 | 168 |
| 345 | Paleogeography | 43 | 694 | 140 | 330 |
| 345 | viruses | 20 | 694 | 454 | 571 |
| 347 | Autoantibodies | 16 | 693 | 142 | 142 |
| 347 | Autoimmune diseases | 16 | 693 | 165 | 156 |
| 349 | Thrombosis | 30 | 688 | 259 | 379 |
| 350 | Solid State Chemistry | 55 | 686 | 501 | 782 |
| 351 | Ultrasound | 30 | 681 | 140 | 175 |
| 352 | Histology | 18 | 671 | 700 | 634 |
| 353 | Mechanics | 37 | 669 | 218 | 261 |
| 354 | Plant Ecology | 45 | 666 | 351 | 733 |
| 354 | Medical Physics | 24 | 666 | 513 | 567 |
| 356 | Conservation Biology | 37 | 657 | 160 | 384 |
| 356 | Metals | 32 | 657 | 521 | 696 |
| 358 | Medical Oncology | 38 | 651 | 350 | 599 |
| 359 | Geodynamics | 40 | 648 | 167 | 355 |
| 360 | Autism | 17 | 645 | 206 | 235 |
| 361 | China | 36 | 644 | 645 | 730 |
| 362 | Marine resources | 10 | 634 | 275 | 122 |
| 363 | Geomorphology | 26 | 624 | 391 | 574 |
| 364 | Bioenergetics | 29 | 616 | 148 | 312 |
| 365 | Neurotoxicology | 15 | 612 | 118 | 129 |
| 366 | Apoptosis | 14 | 610 | 35 | 27 |
| 366 | neurotoxins | 14 | 610 | 35 | 27 |
| 366 | Neurotoxic agents | 14 | 610 | 35 | 27 |
| 366 | Nerve regeneration | 14 | 610 | 35 | 27 |
| 370 | Combustion | 36 | 609 | 267 | 398 |
| 370 | scientific societies | 20 | 609 | 159 | 159 |
| 372 | Genetic disorders | 19 | 604 | 119 | 120 |
| 373 | Developing countries | 12 | 599 | 1,059 | 695 |
| 374 | Bioinorganic chemistry | 43 | 595 | 261 | 474 |
| 375 | Mass Spectrometry | 48 | 593 | 151 | 369 |
| 376 | Control Theory | 76 | 591 | 221 | 537 |
| 376 | proteins | 28 | 591 | 564 | 677 |
| 378 | fertility | 12 | 590 | 412 | 388 |
| 378 | Fisheries | 29 | 590 | 404 | 518 |
| 380 | Sound | 25 | 586 | 240 | 226 |
| 381 | Oxidative stress | 12 | 585 | 283 | 398 |
| 381 | drugs | 31 | 585 | 464 | 645 |
| 383 | Sarcopenia | 20 | 583 | 39 | 144 |
| 384 | Ferroelectricity | 20 | 579 | 326 | 190 |
| 384 | Radio frequency | 20 | 579 | 116 | 124 |
| 386 | Biomolecules | 9 | 572 | 163 | 142 |
| 387 | Statistics | 65 | 570 | 520 | 788 |
| 388 | Biosensors | 17 | 563 | 447 | 694 |
| 389 | Artificial Organs | 15 | 562 | 209 | 117 |
| 390 | Immunopathology | 26 | 561 | 344 | 465 |
| 391 | Oncogenes | 17 | 560 | 393 | 596 |
| 392 | Parkinson's disease | 16 | 559 | 35 | 43 |
| 393 | Synaptic Transmission | 25 | 557 | 71 | 126 |
| 394 | Drug delivery systems | 9 | 555 | 859 | 664 |
| 395 | Agricultural Ecology | 19 | 553 | 287 | 458 |
| 396 | Lipids | 19 | 551 | 386 | 533 |
| 397 | world | 5 | 550 | 513 | 318 |
| 398 | Infertility | 11 | 549 | 394 | 380 |
| 399 | Genetic regulation | 13 | 547 | 417 | 475 |
| 400 | System analysis | 54 | 544 | 368 | 811 |
| 401 | Child | 26 | 543 | 671 | 771 |
| 402 | plankton | 34 | 542 | 5 | 24 |
| 403 | Parenteral nutrition | 20 | 541 | 286 | 389 |
| 404 | epilepsy | 28 | 532 | 169 | 253 |
| 405 | Business | 13 | 531 | 1,041 | 1,098 |
| 406 | vascular diseases | 17 | 529 | 248 | 357 |
| 407 | Philosophy | 49 | 528 | 328 | 310 |
| 408 | concrete | 12 | 527 | 413 | 495 |
| 409 | software | 13 | 523 | 377 | 368 |
| 410 | Particle Physics | 3 | 522 | 218 | 96 |
| 411 | Elementary particles | 2 | 510 | 204 | 92 |
| 412 | Development | 6 | 507 | 514 | 309 |
| 413 | Cardiovascular Pharmacology | 18 | 500 | 26 | 31 |
| 414 | Organometallic chemistry | 40 | 499 | 389 | 616 |
| 415 | Research Design | 14 | 498 | 431 | 432 |
| 416 | Respiration | 30 | 491 | 374 | 590 |
| 417 | Petroleum Geology | 30 | 490 | 85 | 171 |
| 417 | Solar Energy | 11 | 490 | 853 | 787 |
| 419 | Membranes | 21 | 489 | 646 | 858 |
| 420 | Enteral nutrition | 17 | 488 | 249 | 351 |
| 421 | gene therapy | 25 | 483 | 235 | 455 |
| 421 | Parasitology | 29 | 483 | 626 | 814 |
| 421 | Vision | 17 | 483 | 238 | 292 |
| 421 | Agriculture | 19 | 483 | 694 | 777 |
| 425 | Planetary Science | 35 | 481 | 79 | 133 |
| 426 | Fishery resources | 21 | 476 | 110 | 180 |
| 427 | Differential Equations | 42 | 471 | 141 | 302 |
| 428 | protein | 21 | 467 | 362 | 448 |
| 429 | Developmental Neurobiology | 6 | 464 | 326 | 118 |
| 430 | Molecular cloning | 14 | 463 | 553 | 503 |
| 430 | Genetic recombination | 14 | 463 | 539 | 497 |
| 430 | Recombinant DNA | 14 | 463 | 599 | 531 |
| 430 | pain | 14 | 463 | 536 | 587 |
| 430 | Economic Assistance | 4 | 463 | 573 | 311 |
| 435 | Pediatrics | 32 | 462 | 560 | 975 |
| 435 | Neuromuscular diseases | 14 | 462 | 210 | 211 |
| 437 | Synthetic biology | 6 | 458 | 189 | 90 |
| 438 | Energy metabolism | 21 | 457 | 171 | 309 |
| 438 | cell membrane | 21 | 457 | 168 | 296 |
| 440 | Crystallography | 38 | 453 | 367 | 356 |
| 441 | Neurotransmitters | 12 | 452 | 103 | 140 |
| 442 | Fracture mechanics | 22 | 449 | 492 | 554 |
| 442 | Soil ecology | 27 | 449 | 130 | 333 |
| 444 | Cardiovascular diseases | 26 | 448 | 460 | 600 |
| 445 | Developmental Genetics | 14 | 444 | 175 | 324 |
| 446 | Biomass Energy | 9 | 443 | 1,423 | 1,349 |
| 446 | enzymes | 19 | 443 | 507 | 632 |
| 448 | Neurogenetics | 23 | 438 | 36 | 70 |
| 448 | preventive medicine | 29 | 438 | 273 | 515 |
| 450 | coal | 14 | 435 | 694 | 853 |
| 451 | Marine Geology | 28 | 434 | 93 | 191 |
| 452 | Ocean Engineering | 30 | 431 | 486 | 758 |
| 453 | Structure-activity relationship | 2 | 429 | 315 | 95 |
| 454 | Bioelectronics | 9 | 428 | 593 | 729 |
| 454 | Genetic therapy | 18 | 428 | 333 | 478 |
| 456 | Climate Change Mitigation | 4 | 425 | 18 | 33 |
| 456 | Global warming | 4 | 425 | 85 | 35 |
| 456 | Microwaves | 15 | 425 | 605 | 434 |
| 456 | sea level | 4 | 425 | 18 | 33 |
| 460 | Cybernetics | 14 | 422 | 683 | 728 |
| 461 | Agronomy | 7 | 421 | 229 | 223 |
| 462 | Energy Policy | 13 | 420 | 1,341 | 1,581 |
| 463 | Computer Science | 38 | 417 | 315 | 541 |
| 464 | Travel | 35 | 416 | 87 | 183 |
| 464 | Magnetic Materials | 25 | 416 | 443 | 676 |
| 466 | Clinical Trials | 5 | 412 | 311 | 128 |
| 467 | actuators | 17 | 409 | 891 | 1,120 |
| 467 | carbon monoxide | 10 | 409 | 87 | 113 |
| 467 | transducers | 17 | 409 | 891 | 1,120 |
| 470 | Psychoneuroimmunology | 11 | 407 | 239 | 345 |
| 470 | Coastal zone management | 8 | 407 | 340 | 199 |
| 470 | Neuroimmunology | 11 | 407 | 281 | 379 |
| 473 | Globalization | 4 | 403 | 463 | 148 |
| 474 | Clinical Biochemistry | 14 | 401 | 410 | 431 |
| 475 | Computational Complexity | 17 | 396 | 269 | 172 |
| 475 | Therapeutics | 25 | 396 | 480 | 768 |
| 477 | Biomechanics | 18 | 392 | 427 | 561 |
| 477 | Adolescent | 11 | 392 | 960 | 821 |
| 477 | Decision making | 23 | 392 | 375 | 590 |
| 480 | Endocrine glands | 5 | 390 | 164 | 186 |
| 480 | Nanoparticles | 29 | 390 | 465 | 916 |
| 480 | Emotions | 4 | 390 | 520 | 338 |
| 483 | Biometrics | 46 | 389 | 177 | 415 |
| 484 | energy conservation | 10 | 383 | 1,093 | 1,230 |
| 485 | Environmental Toxicology | 17 | 382 | 913 | 1,310 |
| 486 | Synchrotron Radiation | 29 | 380 | 41 | 78 |
| 486 | DNA polymerases | 12 | 380 | 143 | 356 |
| 488 | Randomized Controlled Trials | 31 | 378 | 184 | 256 |
| 489 | RNA | 13 | 375 | 187 | 274 |
| 490 | Surface-Active Agents | 13 | 374 | 380 | 533 |
| 490 | Surface properties | 13 | 374 | 417 | 586 |
| 492 | Gene expression regulation | 10 | 373 | 430 | 433 |
| 493 | Thermodynamics | 7 | 372 | 799 | 283 |
| 494 | Computational Chemistry | 24 | 370 | 104 | 310 |
| 495 | Atomic spectroscopy | 17 | 367 | 422 | 420 |
| 496 | natural products | 16 | 366 | 714 | 684 |
| 497 | Telecommunication Systems | 20 | 364 | 494 | 540 |
| 497 | disease outbreaks | 17 | 364 | 137 | 238 |
| 497 | Epidemics | 17 | 364 | 132 | 232 |
| 500 | Radiobiology | 26 | 363 | 343 | 559 |
| 500 | United States | 37 | 363 | 1,329 | 2,046 |
| 502 | Continuum Mechanics | 6 | 360 | 93 | 41 |
| 503 | Marine Meteorology | 4 | 357 | 266 | 179 |
| 504 | Information Science | 25 | 351 | 740 | 1,320 |
| 505 | Nanophotonics | 17 | 349 | 66 | 144 |
| 506 | Electrical Engineering | 17 | 347 | 1,424 | 1,092 |
| 507 | environmental exposure | 19 | 346 | 595 | 989 |
| 508 | Sun | 33 | 343 | 75 | 159 |
| 509 | Wireless Communication Systems | 17 | 342 | 1,018 | 1,071 |
| 510 | Crystal growth | 21 | 341 | 284 | 460 |
| 511 | Pharmaceutical Technology | 16 | 339 | 592 | 761 |
| 511 | Continental shelf | 15 | 339 | 115 | 173 |
| 513 | Anthropology | 37 | 338 | 361 | 568 |
| 513 | Transport | 13 | 338 | 198 | 286 |
| 513 | Sea | 13 | 338 | 167 | 221 |
| 516 | Medical Technology | 20 | 337 | 426 | 673 |
| 516 | Microscopy | 29 | 337 | 257 | 487 |
| 518 | finance | 10 | 336 | 1,361 | 1,080 |
| 519 | Technological Innovations | 17 | 333 | 249 | 440 |
| 520 | Data Mining | 22 | 332 | 165 | 452 |
| 520 | Sites | 17 | 332 | 164 | 312 |
| 522 | Informatics | 17 | 331 | 225 | 384 |
| 523 | Hemodynamics | 11 | 330 | 303 | 455 |
| 524 | Ceramics | 21 | 329 | 447 | 579 |
| 525 | Chemical Ecology | 9 | 328 | 248 | 272 |
| 525 | Primary health care | 21 | 328 | 492 | 689 |
| 525 | pheromones | 9 | 328 | 210 | 251 |
| 528 | Aquaculture | 24 | 326 | 426 | 678 |
| 529 | Glass | 18 | 325 | 346 | 490 |
| 530 | biocatalysis | 3 | 323 | 166 | 260 |
| 530 | Homogeneous catalysis | 3 | 323 | 166 | 260 |
| 530 | Heterogeneous catalysis | 3 | 323 | 166 | 260 |
| 530 | Multiple sclerosis | 18 | 323 | 133 | 127 |
| 534 | Software Engineering | 14 | 322 | 407 | 459 |
| 534 | Cement | 8 | 322 | 318 | 434 |
| 536 | pottery | 17 | 321 | 349 | 493 |
| 537 | Radio waves | 16 | 318 | 358 | 486 |
| 538 | Clinical Pharmacology | 26 | 317 | 314 | 583 |
| 539 | Chemical Oceanography | 15 | 314 | 89 | 169 |
| 540 | medical education | 19 | 307 | 579 | 732 |
| 541 | Psycholinguistics | 11 | 304 | 458 | 536 |
| 542 | Sustainable agriculture | 6 | 303 | 421 | 308 |
| 543 | water supply | 13 | 302 | 361 | 527 |
| 543 | catalytic activity | 11 | 302 | 291 | 374 |
| 545 | Landscape Ecology | 11 | 300 | 160 | 258 |
| 545 | Diagnostic microbiology | 13 | 300 | 453 | 823 |
| 547 | Functional Analysis | 41 | 299 | 228 | 557 |
| 547 | Environmental pollutants | 24 | 299 | 634 | 1,332 |
| 549 | Public Policy | 16 | 297 | 632 | 862 |
| 549 | Plant Taxonomy | 14 | 297 | 120 | 156 |
| 549 | Paleobiology | 55 | 297 | 4 | 52 |
| 549 | Perception | 15 | 297 | 722 | 839 |
| 553 | Biodegradation | 11 | 296 | 220 | 354 |
| 554 | Bacteria | 3 | 295 | 307 | 244 |
| 555 | Asia | 23 | 293 | 803 | 1,002 |
| 556 | cryosphere | 20 | 292 | 109 | 222 |
| 557 | Geographic information systems | 3 | 289 | 1,159 | 359 |
| 557 | International Finance | 7 | 289 | 1,141 | 885 |
| 559 | analysis | 23 | 287 | 70 | 217 |
| 559 | Cerebrospinal fluid | 6 | 287 | 52 | 45 |
| 561 | Industrial Microbiology | 7 | 286 | 1,229 | 1,212 |
| 561 | Zeolites | 16 | 286 | 292 | 550 |
| 563 | Orthopedics | 6 | 285 | 930 | 680 |
| 563 | Electron Microscopy | 13 | 285 | 124 | 119 |
| 563 | multimedia | 11 | 285 | 204 | 277 |
| 563 | Interactive multimedia | 11 | 285 | 224 | 291 |
| 567 | Ethics | 23 | 284 | 206 | 309 |
| 567 | Genetic Research | 4 | 284 | 108 | 43 |
| 569 | pollutants | 22 | 282 | 530 | 1,188 |
| 570 | Virtual reality | 12 | 281 | 99 | 157 |
| 571 | internet | 10 | 279 | 806 | 872 |
| 572 | Molecular Spectroscopy | 27 | 277 | 471 | 916 |
| 573 | city planning | 11 | 275 | 792 | 790 |
| 574 | Mobile Computing | 5 | 273 | 865 | 522 |
| 574 | viral genetics | 3 | 273 | 250 | 327 |
| 576 | drug evaluation | 9 | 272 | 657 | 637 |
| 577 | pigments | 13 | 270 | 310 | 393 |
| 578 | risk factors | 15 | 268 | 226 | 345 |
| 579 | Operations Research | 23 | 267 | 794 | 1,210 |
| 580 | Environmental Geology | 17 | 266 | 565 | 937 |
| 580 | Entropy | 30 | 266 | 126 | 361 |
| 580 | animals | 23 | 266 | 307 | 479 |
| 583 | Social behavior | 16 | 265 | 449 | 692 |
| 584 | Cheminformatics | 5 | 264 | 182 | 228 |
| 585 | alcoholism | 18 | 263 | 505 | 752 |
| 586 | Audiology | 7 | 261 | 471 | 376 |
| 587 | Molecular Microbiology | 6 | 260 | 564 | 663 |
| 587 | Population | 16 | 260 | 273 | 473 |
| 589 | Developmental Immunology | 7 | 259 | 322 | 348 |
| 589 | Food | 8 | 259 | 1,932 | 1,935 |
| 591 | weather | 19 | 257 | 88 | 270 |
| 592 | Genetic algorithms | 15 | 256 | 79 | 293 |
| 592 | Chromatography | 13 | 256 | 707 | 748 |
| 592 | Evolutionary Computation | 15 | 256 | 105 | 368 |
| 592 | drug addiction | 17 | 256 | 390 | 645 |
| 592 | Chromatographic analysis | 13 | 256 | 833 | 834 |
| 597 | Reproductive health | 16 | 255 | 218 | 349 |
| 597 | Biomass | 1 | 255 | 1,221 | 442 |
| 599 | Neuroanatomy | 2 | 254 | 311 | 80 |
| 600 | Internet of Things | 4 | 251 | 949 | 730 |
| 601 | Chemotherapy | 15 | 250 | 484 | 661 |
| 602 | economic policy | 14 | 249 | 1,097 | 974 |
| 603 | Radiology | 14 | 246 | 545 | 547 |
| 603 | Nuclear Engineering | 3 | 246 | 1,380 | 584 |
| 603 | Neuropsychiatry | 12 | 246 | 333 | 441 |
| 603 | Amyotrophic Lateral Sclerosis | 10 | 246 | 79 | 114 |
| 603 | Ceramic materials | 20 | 246 | 404 | 690 |
| 608 | Maps | 8 | 245 | 62 | 43 |
| 609 | Optical Communications | 14 | 244 | 273 | 317 |
| 610 | Asthma | 10 | 243 | 246 | 232 |
| 611 | Political Science | 18 | 241 | 712 | 740 |
| 612 | Chromosomes | 5 | 240 | 646 | 568 |
| 613 | drug resistance | 17 | 239 | 118 | 366 |
| 613 | Coral reef biology | 18 | 239 | 75 | 194 |
| 615 | Database Management | 9 | 238 | 418 | 450 |
| 615 | Medical Anthropology | 11 | 238 | 552 | 856 |
| 615 | Tropical Medicine | 26 | 238 | 438 | 815 |
| 615 | natural disasters | 11 | 238 | 556 | 752 |
| 619 | occupational diseases | 12 | 237 | 304 | 442 |
| 619 | Medical Ethics | 24 | 237 | 291 | 432 |
| 621 | Spine | 9 | 236 | 336 | 435 |
| 622 | Plastics | 5 | 235 | 1,329 | 848 |
| 623 | Linguistics | 36 | 234 | 302 | 596 |
| 624 | Electrophoresis | 13 | 233 | 721 | 905 |
| 624 | health planning | 13 | 233 | 998 | 1,071 |
| 626 | Detectors | 9 | 231 | 846 | 806 |
| 627 | lasers | 11 | 230 | 1,160 | 1,081 |
| 628 | Emergency Medicine | 25 | 229 | 342 | 546 |
| 628 | Photochemistry | 15 | 229 | 676 | 987 |
| 628 | Photobiology | 14 | 229 | 483 | 779 |
| 628 | Malaria | 11 | 229 | 273 | 340 |
| 632 | Industrial Engineering | 8 | 227 | 1,094 | 1,118 |
| 632 | Lipid metabolism | 7 | 227 | 188 | 260 |
| 632 | Calculus of Variations | 41 | 227 | 36 | 205 |
| 632 | ports | 3 | 227 | 217 | 102 |
| 632 | Lipid | 7 | 227 | 188 | 260 |
| 637 | space environment | 12 | 226 | 68 | 89 |
| 638 | Computational Fluid Dynamics | 19 | 225 | 154 | 324 |
| 639 | Neuroimaging | 13 | 222 | 83 | 118 |
| 640 | Pharmacognosy | 10 | 221 | 999 | 1,317 |
| 641 | Computational Mathematics | 9 | 220 | 33 | 53 |
| 641 | Smoking | 9 | 220 | 354 | 489 |
| 641 | Microbiota | 9 | 220 | 5 | 10 |
| 644 | Ecological Genetics | 12 | 217 | 202 | 233 |
| 644 | Organometallic compounds | 14 | 217 | 592 | 773 |
| 646 | Occupational Health | 13 | 215 | 369 | 463 |
| 647 | Quantum electronics | 12 | 214 | 785 | 826 |
| 648 | Biopharmaceutics | 9 | 213 | 536 | 725 |
| 649 | Brain damage | 12 | 212 | 115 | 214 |
| 650 | Atmospheric Science | 17 | 210 | 24 | 96 |
| 650 | Social History | 9 | 210 | 197 | 137 |
| 652 | Mechanical Engineering | 10 | 209 | 1,393 | 1,147 |
| 652 | Genes | 11 | 209 | 486 | 606 |
| 654 | Machine Learning | 10 | 205 | 112 | 192 |
| 654 | Plasma chemistry | 11 | 205 | 150 | 199 |
| 654 | Lightweight concrete | 4 | 205 | 348 | 472 |
| 657 | plasticity | 2 | 204 | 402 | 319 |
| 658 | Gerontology | 18 | 203 | 677 | 927 |
| 658 | biological factors | 11 | 203 | 954 | 1,141 |
| 660 | Building Materials | 9 | 202 | 1,037 | 1,438 |
| 661 | polar regions | 14 | 201 | 222 | 337 |
| 662 | Urban Policy | 9 | 200 | 406 | 553 |
| 663 | Combinatorial chemistry | 10 | 197 | 318 | 573 |
| 663 | Parasites | 12 | 197 | 739 | 917 |
| 665 | Geometry | 44 | 196 | 184 | 403 |
| 666 | Health Services Research | 13 | 195 | 642 | 916 |
| 666 | human development | 17 | 195 | 258 | 568 |
| 668 | Lung Transplantation | 10 | 194 | 163 | 242 |
| 668 | Heart transplantation | 10 | 194 | 163 | 242 |
| 668 | Geobiology | 12 | 194 | 153 | 285 |
| 671 | Fluid Dynamics | 13 | 193 | 477 | 672 |
| 671 | Nanoelectronics | 11 | 193 | 343 | 297 |
| 671 | radioactive waste | 3 | 193 | 819 | 853 |
| 671 | industrial waste | 3 | 193 | 851 | 854 |
| 671 | Hazardous waste | 3 | 193 | 956 | 908 |
| 676 | Physical Therapy | 2 | 192 | 1,397 | 847 |
| 676 | Japan | 16 | 192 | 605 | 838 |
| 678 | health services accessibility | 9 | 191 | 455 | 519 |
| 678 | Human evolution | 9 | 191 | 211 | 364 |
| 680 | solar cells | 7 | 187 | 528 | 725 |
| 680 | mental processes | 12 | 187 | 120 | 165 |
| 682 | Attention | 9 | 186 | 817 | 957 |
| 683 | International Relations | 13 | 185 | 451 | 477 |
| 683 | Probability | 26 | 185 | 83 | 347 |
| 683 | Engineering Geology | 15 | 185 | 579 | 964 |
| 683 | Respiratory Infections | 9 | 185 | 131 | 167 |
| 683 | Influenza | 9 | 185 | 63 | 110 |
| 688 | Raman spectroscopy | 19 | 184 | 167 | 475 |
| 688 | Hippocampus | 2 | 184 | 352 | 264 |
| 688 | cloning | 5 | 184 | 422 | 556 |
| 691 | mass transfer | 11 | 183 | 922 | 1,237 |
| 692 | Semiconductor industry | 9 | 182 | 283 | 246 |
| 692 | environmental issues | 11 | 182 | 111 | 275 |
| 694 | Adhesion | 4 | 181 | 593 | 331 |
| 694 | Osteoporosis | 4 | 181 | 258 | 173 |
| 694 | adhesives | 4 | 181 | 631 | 335 |
| 697 | Epigenetics | 3 | 179 | 223 | 86 |
| 697 | Epigenomics | 3 | 179 | 220 | 85 |
| 697 | older people | 16 | 179 | 590 | 687 |
| 697 | mammals | 20 | 179 | 283 | 564 |
| 701 | Experimental Psychology | 3 | 178 | 592 | 401 |
| 702 | Frontotemporal lobar degeneration | 8 | 177 | 75 | 99 |
| 703 | Mechatronics | 13 | 176 | 324 | 595 |
| 703 | France | 38 | 176 | 32 | 114 |
| 705 | Databases | 7 | 175 | 228 | 242 |
| 705 | Number Theory | 36 | 175 | 104 | 211 |
| 707 | Developmental Psychology | 7 | 172 | 640 | 732 |
| 707 | Long-Term Care | 14 | 172 | 163 | 406 |
| 707 | Long-term care facilities | 14 | 172 | 159 | 404 |
| 707 | Microcirculation | 4 | 172 | 375 | 295 |
| 707 | X-ray crystallography | 5 | 172 | 418 | 262 |
| 707 | Blood vessels | 4 | 172 | 299 | 235 |
| 707 | Allergies | 4 | 172 | 80 | 56 |
| 714 | disabilities | 4 | 171 | 575 | 413 |
| 715 | Molecular Pharmacology | 8 | 170 | 461 | 704 |
| 715 | insurance | 9 | 170 | 173 | 184 |
| 717 | pain management | 7 | 169 | 332 | 358 |
| 718 | Flow cytometry | 4 | 168 | 285 | 228 |
| 719 | food technology | 9 | 167 | 1,489 | 1,955 |
| 720 | Systems Engineering | 14 | 166 | 969 | 1,410 |
| 720 | soil conservation | 8 | 166 | 382 | 562 |
| 722 | Organic Geochemistry | 12 | 165 | 125 | 324 |
| 723 | Plant diseases | 11 | 164 | 1,028 | 1,251 |
| 724 | Ecological Engineering | 8 | 163 | 291 | 593 |
| 724 | Electromagnetism | 15 | 163 | 387 | 605 |
| 726 | Nanobiotechnology | 4 | 162 | 341 | 453 |
| 727 | Natural resources | 9 | 161 | 385 | 589 |
| 727 | Bones | 5 | 161 | 519 | 640 |
| 727 | language | 7 | 161 | 496 | 593 |
| 730 | Emergency Medical Services | 15 | 160 | 170 | 321 |
| 730 | Antibacterial agents | 16 | 160 | 145 | 489 |
| 730 | nuclear magnetic resonance spectroscopy | 13 | 160 | 298 | 394 |
| 733 | Tribology | 5 | 159 | 890 | 754 |
| 733 | Culture techniques | 30 | 159 | 24 | 160 |
| 735 | peptides | 4 | 158 | 665 | 391 |
| 736 | Measurement | 7 | 157 | 868 | 902 |
| 736 | amino acids | 6 | 157 | 343 | 432 |
| 736 | energy resources | 4 | 157 | 1,155 | 1,413 |
| 739 | Marine Biotechnology | 6 | 153 | 102 | 160 |
| 739 | cell interaction | 5 | 153 | 728 | 883 |
| 741 | Heart Failure | 8 | 152 | 203 | 350 |
| 741 | Soil fertility | 6 | 152 | 188 | 313 |
| 741 | exobiology | 14 | 152 | 71 | 286 |
| 741 | kidney | 4 | 152 | 52 | 65 |
| 745 | Bioethics | 17 | 151 | 312 | 493 |
| 746 | Substance Abuse | 16 | 150 | 533 | 903 |
| 747 | Superconductors | 19 | 149 | 341 | 472 |
| 748 | Hydrodynamics | 7 | 148 | 365 | 465 |
| 749 | Memory | 10 | 147 | 830 | 1,165 |
| 750 | solar power | 5 | 146 | 599 | 795 |
| 750 | Cell communication | 4 | 146 | 465 | 578 |
| 752 | Celestial Mechanics | 11 | 145 | 68 | 108 |
| 753 | symbiosis | 8 | 144 | 17 | 41 |
| 754 | Radio wave propagation | 7 | 143 | 448 | 394 |
| 754 | optical instruments | 7 | 143 | 183 | 223 |
| 756 | Geodesy | 6 | 142 | 474 | 483 |
| 757 | Learning | 5 | 141 | 928 | 948 |
| 758 | Porous materials | 9 | 139 | 330 | 400 |
| 758 | Carbohydrates | 6 | 139 | 272 | 357 |
| 758 | Birds | 24 | 139 | 348 | 669 |
| 761 | Fiber Optics | 6 | 138 | 652 | 649 |
| 761 | Social problems | 1 | 138 | 1,000 | 516 |
| 761 | Chronic diseases | 12 | 138 | 286 | 570 |
| 764 | Structural dynamics | 11 | 137 | 480 | 895 |
| 764 | Steroids | 8 | 137 | 504 | 677 |
| 766 | Rheology | 10 | 136 | 259 | 398 |
| 766 | glycoproteins | 5 | 136 | 313 | 360 |
| 766 | Glycoconjugates | 5 | 136 | 313 | 360 |
| 766 | Oligosaccharide | 5 | 136 | 191 | 286 |
| 766 | glycolipids | 5 | 136 | 313 | 360 |
| 771 | Hemostasis | 12 | 135 | 294 | 479 |
| 772 | psychophysics | 4 | 133 | 310 | 199 |
| 773 | Human Rights | 4 | 131 | 461 | 301 |
| 773 | Physical organic chemistry | 15 | 131 | 614 | 1,035 |
| 773 | Aquatic ecology | 13 | 131 | 368 | 670 |
| 776 | Intelligent Transportation Systems | 4 | 130 | 951 | 1,007 |
| 776 | Hydraulic Engineering | 9 | 130 | 477 | 625 |
| 776 | Diagnosis | 9 | 130 | 146 | 238 |
| 779 | Digital electronics | 1 | 129 | 605 | 81 |
| 780 | Psychometrics | 2 | 128 | 515 | 348 |
| 780 | Proteome | 6 | 128 | 742 | 970 |
| 780 | Fuzzy systems | 10 | 128 | 828 | 971 |
| 783 | Mineral resources | 2 | 127 | 845 | 618 |
| 784 | Nuclear Fusion | 5 | 126 | 413 | 352 |
| 784 | Sonochemistry | 6 | 126 | 386 | 804 |
| 784 | Extreme environments | 3 | 126 | 216 | 225 |
| 787 | Agricultural Science | 2 | 124 | 258 | 262 |
| 788 | Language Disorders | 6 | 123 | 584 | 591 |
| 789 | Health Education | 5 | 122 | 1,356 | 1,266 |
| 789 | emergency management | 8 | 122 | 314 | 562 |
| 789 | Multiphase Flow | 8 | 122 | 195 | 344 |
| 789 | Graphene | 2 | 122 | 147 | 124 |
| 793 | Scandinavia | 10 | 121 | 239 | 431 |
| 794 | Actuarial Science | 8 | 120 | 122 | 166 |
| 794 | histological techniques | 6 | 120 | 450 | 652 |
| 794 | Microwave devices | 5 | 120 | 360 | 346 |
| 797 | thinking | 4 | 119 | 231 | 264 |
| 798 | Geriatric Oncology | 6 | 118 | 320 | 484 |
| 798 | Water Microbiology | 7 | 118 | 176 | 364 |
| 800 | Amyloidosis | 10 | 117 | 39 | 91 |
| 801 | Comparative Physiology | 7 | 116 | 499 | 687 |
| 801 | Respiratory system | 10 | 116 | 237 | 498 |
| 801 | urban forestry | 7 | 116 | 86 | 198 |
| 804 | Heritage Tourism | 4 | 115 | 68 | 72 |
| 804 | cultural tourism | 4 | 115 | 68 | 72 |
| 806 | Smart Materials | 10 | 114 | 452 | 746 |
| 806 | biomedicine | 4 | 114 | 394 | 515 |
| 806 | Fouling | 6 | 114 | 100 | 243 |
| 809 | Computer Engineering | 7 | 113 | 533 | 653 |
| 809 | Immunogenetics | 5 | 113 | 429 | 487 |
| 809 | Ornithology | 24 | 113 | 276 | 638 |
| 809 | Communist countries | 1 | 113 | 433 | 56 |
| 809 | Metallography | 4 | 113 | 681 | 675 |
| 814 | Magnetic Resonance Imaging | 22 | 112 | 89 | 318 |
| 814 | Psychosomatic Medicine | 9 | 112 | 386 | 693 |
| 814 | Ecological disturbances | 2 | 112 | 35 | 27 |
| 814 | Environmental disasters | 2 | 112 | 35 | 27 |
| 818 | Ecosystem management | 8 | 111 | 363 | 607 |
| 818 | electric vehicles | 2 | 111 | 385 | 283 |
| 818 | Invertebrates | 5 | 111 | 439 | 471 |
| 821 | History | 15 | 110 | 402 | 297 |
| 821 | Global Health | 6 | 110 | 669 | 716 |
| 821 | Sports Medicine | 6 | 110 | 1,668 | 1,652 |
| 821 | Precision medicine | 9 | 110 | 75 | 137 |
| 821 | Computer-Aided Design | 8 | 110 | 692 | 934 |
| 821 | atmosphere | 12 | 110 | 277 | 713 |
| 821 | Post-traumatic stress disorder | 5 | 110 | 533 | 696 |
| 828 | Nonlinear functional analysis | 16 | 109 | 417 | 870 |
| 828 | Knowledge | 19 | 109 | 141 | 290 |
| 830 | Mollusks | 19 | 108 | 11 | 74 |
| 831 | Physical fitness | 5 | 107 | 801 | 928 |
| 832 | Nursing | 7 | 106 | 1,279 | 1,290 |
| 832 | X-ray spectroscopy | 11 | 106 | 52 | 102 |
| 832 | Carbon | 7 | 106 | 825 | 1,457 |
| 835 | Semiconductors | 8 | 105 | 1,371 | 1,522 |
| 835 | Land use | 6 | 105 | 768 | 1,138 |
| 835 | Atherosclerosis | 4 | 105 | 120 | 161 |
| 835 | disarmament | 1 | 105 | 289 | 117 |
| 835 | Visual Perception | 9 | 105 | 777 | 1,128 |
| 835 | peace | 2 | 105 | 585 | 428 |
| 835 | Endocrine system | 10 | 105 | 309 | 204 |
| 842 | Proteomics | 8 | 104 | 584 | 994 |
| 842 | Chemical kinetics | 4 | 104 | 674 | 370 |
| 844 | Otolaryngology | 8 | 103 | 269 | 402 |
| 844 | Demography | 6 | 103 | 423 | 588 |
| 844 | Forest Ecology | 2 | 103 | 1,150 | 955 |
| 844 | Analytical Biochemistry | 6 | 103 | 1,202 | 1,393 |
| 844 | Transportation | 6 | 103 | 1,128 | 1,367 |
| 844 | Speech Disorders | 7 | 103 | 664 | 807 |
| 844 | Forest Management | 2 | 103 | 1,109 | 915 |
| 844 | Luminescence | 8 | 103 | 832 | 1,043 |
| 852 | Electromagnetic waves | 2 | 102 | 405 | 202 |
| 852 | Sports | 11 | 102 | 1,099 | 1,460 |
| 852 | Human-robot interaction | 4 | 102 | 41 | 55 |
| 852 | Ultrasonic Imaging | 10 | 102 | 207 | 427 |
| 856 | Ore deposits | 4 | 101 | 456 | 496 |
| 857 | Geriatric Psychiatry | 7 | 100 | 554 | 825 |
| 858 | Animal | 7 | 99 | 60 | 98 |
| 859 | Space telescopes | 17 | 98 | 30 | 105 |
| 859 | Solitons | 8 | 98 | 684 | 1,040 |
| 859 | Fractals | 8 | 98 | 687 | 1,043 |
| 859 | Chaos | 8 | 98 | 684 | 1,040 |
| 859 | Africa | 17 | 98 | 498 | 931 |
| 859 | musculoskeletal system | 5 | 98 | 80 | 143 |
| 859 | Marine algae | 6 | 98 | 64 | 88 |
| 866 | Information Systems | 8 | 97 | 788 | 1,246 |
| 866 | X-rays | 4 | 97 | 447 | 354 |
| 868 | Extracellular matrix | 3 | 96 | 232 | 318 |
| 868 | Ethnology | 15 | 96 | 529 | 948 |
| 868 | Pregnancy | 8 | 96 | 427 | 692 |
| 868 | collagen | 3 | 96 | 243 | 325 |
| 872 | Engineering Ethics | 3 | 95 | 194 | 180 |
| 872 | embryonic development | 5 | 95 | 277 | 404 |
| 872 | preimplantation genetic diagnosis | 6 | 95 | 244 | 351 |
| 872 | embryo transfer | 6 | 95 | 256 | 356 |
| 872 | Child Development | 7 | 95 | 1,139 | 1,589 |
| 872 | Professional ethics | 3 | 95 | 267 | 232 |
| 872 | Latin America | 22 | 95 | 378 | 603 |
| 872 | data collection | 4 | 95 | 150 | 225 |
| 872 | plant communities | 8 | 95 | 641 | 1,159 |
| 881 | particles | 7 | 94 | 585 | 891 |
| 882 | Australia | 9 | 93 | 969 | 1,381 |
| 883 | Morphology | 11 | 92 | 391 | 617 |
| 884 | Highway Engineering | 1 | 91 | 647 | 308 |
| 884 | Melanoma | 2 | 91 | 241 | 221 |
| 884 | Schizophrenia | 9 | 91 | 506 | 925 |
| 887 | Marine invertebrates | 7 | 90 | 90 | 123 |
| 887 | Trace elements | 5 | 90 | 161 | 356 |
| 887 | eugenics | 8 | 90 | 257 | 476 |
| 890 | Pharmacy | 7 | 89 | 1,286 | 1,801 |
| 890 | Algebra | 22 | 89 | 548 | 842 |
| 890 | Community Psychiatry | 9 | 89 | 458 | 939 |
| 890 | Fossils | 12 | 89 | 10 | 13 |
| 894 | Clinical Psychology | 5 | 88 | 877 | 1,127 |
| 894 | Tourism | 5 | 88 | 1,308 | 1,769 |
| 896 | Food Policy | 1 | 87 | 562 | 392 |
| 896 | Quantum Chemistry | 3 | 87 | 148 | 155 |
| 896 | agricultural policy | 1 | 87 | 429 | 336 |
| 899 | microwave communication systems | 4 | 86 | 338 | 360 |
| 900 | Intelligence | 3 | 85 | 248 | 283 |
| 900 | elasticity | 10 | 85 | 87 | 199 |
| 900 | Thorax | 5 | 85 | 275 | 447 |
| 903 | Hydrogeology | 7 | 84 | 414 | 675 |
| 903 | soil pollution | 4 | 84 | 447 | 517 |
| 903 | management | 10 | 84 | 1,954 | 3,052 |
| 903 | Middle East | 17 | 84 | 277 | 694 |
| 907 | Tissue Engineering | 3 | 83 | 344 | 369 |
| 907 | bioclimatology | 7 | 83 | 531 | 941 |
| 907 | cytokines | 2 | 83 | 1,290 | 1,263 |
| 907 | psychotherapy | 1 | 83 | 1,738 | 1,097 |
| 911 | Information Retrieval | 9 | 82 | 185 | 495 |
| 911 | land degradation | 4 | 82 | 411 | 607 |
| 911 | liver | 6 | 82 | 173 | 286 |
| 911 | mathematical concepts | 10 | 82 | 141 | 267 |
| 911 | degradation | 4 | 82 | 411 | 607 |
| 916 | Development Economics | 3 | 81 | 420 | 377 |
| 917 | Ecophysiology | 6 | 80 | 96 | 230 |
| 917 | Turbulence | 5 | 80 | 165 | 197 |
| 917 | extraterrestrial environment | 10 | 80 | 237 | 457 |
| 920 | Bipolar Disorder | 2 | 79 | 381 | 369 |
| 920 | astronomical phenomena | 9 | 79 | 227 | 421 |
| 922 | Structural optimization | 3 | 78 | 344 | 384 |
| 922 | cardiac catheterization | 8 | 78 | 341 | 428 |
| 924 | Terahertz Technology | 6 | 77 | 85 | 177 |
| 924 | disease vectors | 5 | 77 | 716 | 1,018 |
| 926 | Online social networks | 6 | 76 | 127 | 279 |
| 926 | negotiation | 4 | 76 | 62 | 66 |
| 926 | Minerals | 9 | 76 | 316 | 839 |
| 926 | conflict management | 4 | 76 | 208 | 320 |
| 930 | Social Networks | 5 | 75 | 176 | 348 |
| 930 | silicon | 3 | 75 | 351 | 248 |
| 932 | Andrology | 9 | 74 | 278 | 562 |
| 932 | Herbal medicine | 3 | 74 | 734 | 1,026 |
| 932 | Yeast | 6 | 74 | 253 | 517 |
| 935 | Educational Psychology | 8 | 73 | 849 | 1,361 |
| 935 | Carcinogenesis | 5 | 73 | 649 | 1,029 |
| 935 | wind erosion | 2 | 73 | 137 | 158 |
| 938 | Human Geography | 10 | 72 | 562 | 961 |
| 938 | Political Parties | 1 | 72 | 368 | 232 |
| 938 | Plant breeding | 5 | 72 | 562 | 796 |
| 938 | Child psychology | 4 | 72 | 1,152 | 1,460 |
| 938 | Breeding | 5 | 72 | 880 | 1,205 |
| 943 | Parallel Processing | 4 | 71 | 377 | 561 |
| 943 | Immunochemistry | 3 | 71 | 919 | 904 |
| 943 | Neuroendocrinology | 2 | 71 | 162 | 277 |
| 946 | Microbial Biotechnology | 5 | 70 | 722 | 1,197 |
| 946 | anesthesia | 8 | 70 | 242 | 331 |
| 946 | Synapses | 1 | 70 | 432 | 317 |
| 946 | Growth factors | 1 | 70 | 476 | 471 |
| 946 | Cytokine | 1 | 70 | 629 | 562 |
| 951 | Antarctica | 12 | 69 | 189 | 443 |
| 952 | Microbial Genetics | 3 | 68 | 336 | 425 |
| 952 | Emerging infectious diseases | 3 | 68 | 301 | 428 |
| 952 | Genetic variation | 6 | 68 | 49 | 125 |
| 952 | Biofilms | 6 | 68 | 54 | 307 |
| 952 | touch | 11 | 68 | 30 | 141 |
| 952 | Harmonic Analysis | 2 | 68 | 197 | 196 |
| 952 | Classification | 2 | 68 | 371 | 269 |
| 952 | NMR | 5 | 68 | 391 | 425 |
| 952 | magnetic resonance | 5 | 68 | 405 | 440 |
| 961 | Food Microbiology | 3 | 67 | 1,179 | 1,617 |
| 961 | Drosophila | 2 | 67 | 71 | 49 |
| 961 | ovary | 1 | 67 | 388 | 237 |
| 964 | synthesis | 5 | 66 | 878 | 881 |
| 965 | Discourse Analysis | 5 | 65 | 260 | 415 |
| 965 | Lymphoma | 12 | 65 | 98 | 254 |
| 965 | Multiple Myeloma | 12 | 65 | 96 | 245 |
| 965 | Microstructure | 8 | 65 | 461 | 759 |
| 965 | color | 2 | 65 | 315 | 221 |
| 965 | Insect biochemistry | 5 | 65 | 308 | 584 |
| 971 | Applied Linguistics | 5 | 64 | 467 | 540 |
| 971 | optical phenomena | 6 | 64 | 56 | 128 |
| 971 | Developed countries | 2 | 64 | 264 | 304 |
| 971 | India | 4 | 64 | 1,269 | 891 |
| 975 | Music | 14 | 63 | 317 | 678 |
| 975 | Plant tissue culture | 1 | 63 | 1,125 | 838 |
| 975 | big data | 5 | 63 | 397 | 701 |
| 975 | Plant cell culture | 1 | 63 | 1,047 | 833 |
| 975 | Menopause | 1 | 63 | 523 | 353 |
| 975 | impact | 4 | 63 | 250 | 439 |
| 981 | Radiation Oncology | 4 | 62 | 262 | 382 |
| 981 | Cell division | 2 | 62 | 449 | 527 |
| 981 | Women's health | 6 | 62 | 774 | 1,249 |
| 984 | Infection control | 7 | 61 | 120 | 466 |
| 984 | Evolution equations | 10 | 61 | 26 | 104 |
| 984 | Radiation effects | 4 | 61 | 525 | 910 |
| 987 | Medical Imaging | 12 | 60 | 108 | 270 |
| 987 | Social Psychology | 5 | 60 | 1,676 | 2,247 |
| 987 | Educational Technology | 3 | 60 | 1,665 | 1,810 |
| 987 | Flexible manufacturing systems | 5 | 60 | 243 | 551 |
| 987 | Quality of life | 10 | 60 | 668 | 1,707 |
| 992 | Structural design | 5 | 59 | 637 | 908 |
| 992 | foreign exchange | 1 | 59 | 600 | 485 |
| 992 | chromatin | 3 | 59 | 109 | 235 |
| 992 | Psychiatric Epidemiology | 7 | 59 | 254 | 702 |
| 996 | micromechanics | 4 | 57 | 506 | 700 |
| 997 | Law | 8 | 56 | 779 | 801 |
| 997 | Petroleum Engineering | 2 | 56 | 816 | 769 |
| 997 | Orthopedic Surgery | 1 | 56 | 1,046 | 759 |
| 997 | Feminism | 4 | 56 | 497 | 550 |