| 1 | Science | 3,777 | 318.8K | 46 | 60 |
| 2 | Physics | 4,088 | 297.9K | 66 | 83 |
| 3 | Astrophysics | 2,998 | 291.1K | 33 | 24 |
| 4 | Biology | 3,827 | 242.0K | 45 | 97 |
| 5 | Medicine | 3,626 | 214.3K | 53 | 55 |
| 6 | Spectrum analysis | 2,635 | 211.7K | 17 | 15 |
| 7 | Biochemistry | 4,307 | 197.3K | 37 | 46 |
| 8 | Molecular Biology | 2,570 | 180.6K | 45 | 53 |
| 9 | Microbiology | 2,333 | 170.1K | 16 | 19 |
| 10 | Chemistry | 2,729 | 169.5K | 103 | 107 |
| 11 | Astronomy | 1,969 | 162.0K | 50 | 36 |
| 12 | Nuclear Physics | 2,788 | 142.3K | 34 | 21 |
| 13 | Neurology | 2,254 | 137.8K | 53 | 66 |
| 14 | United States | 4,106 | 116.8K | 7 | 12 |
| 15 | Ecology | 1,638 | 113.6K | 41 | 49 |
| 16 | Psychology | 1,883 | 113.3K | 12 | 16 |
| 17 | Research | 2,677 | 108.6K | 40 | 42 |
| 18 | Hematology | 1,763 | 108.2K | 12 | 10 |
| 19 | Materials | 1,597 | 103.0K | 80 | 63 |
| 20 | Natural history | 546 | 92.4K | 79 | 133 |
| 21 | Cell Biology | 902 | 88.7K | 57 | 68 |
| 22 | Botany | 1,401 | 87.3K | 12 | 12 |
| 23 | management | 580 | 83.4K | 18 | 12 |
| 24 | Environment | 1,106 | 82.3K | 19 | 22 |
| 25 | Medical genetics | 571 | 81.2K | 54 | 20 |
| 26 | Cytology | 899 | 80.4K | 76 | 79 |
| 27 | Cancer | 1,021 | 73.6K | 17 | 15 |
| 28 | Behavior | 861 | 69.8K | 26 | 9 |
| 29 | Virology | 774 | 69.2K | 38 | 65 |
| 30 | Social Psychology | 935 | 61.3K | 4 | 11 |
| 31 | Genetics | 852 | 59.5K | 49 | 65 |
| 32 | Pollution | 880 | 56.7K | 51 | 49 |
| 33 | Urology | 1,279 | 55.3K | 5 | 6 |
| 34 | Materials Science | 1,075 | 54.9K | 66 | 60 |
| 35 | Immunology | 944 | 53.2K | 36 | 60 |
| 36 | Pediatrics | 1,197 | 53.2K | 25 | 29 |
| 37 | Psychophysiology | 921 | 52.2K | 27 | 31 |
| 38 | Metallurgy | 761 | 51.8K | 12 | 5 |
| 39 | Human genetics | 287 | 49.5K | 83 | 107 |
| 40 | Solid State Physics | 1,180 | 48.1K | 68 | 62 |
| 41 | Condensed Matter | 1,166 | 47.7K | 59 | 67 |
| 42 | Biotechnology | 743 | 47.5K | 87 | 73 |
| 43 | Metals | 664 | 47.4K | 13 | 7 |
| 44 | Psychiatry | 908 | 46.6K | 57 | 73 |
| 45 | Sociology | 746 | 46.5K | 12 | 13 |
| 46 | Quantum Gravity | 915 | 46.0K | 33 | 34 |
| 47 | human behavior | 459 | 45.3K | 30 | 14 |
| 48 | Radio | 893 | 44.8K | 3 | 7 |
| 49 | Biophysics | 1,269 | 44.3K | 57 | 76 |
| 50 | Communication | 685 | 43.9K | 7 | 2 |
| 51 | Pharmacology | 1,211 | 42.9K | 51 | 57 |
| 52 | Nanotechnology | 577 | 42.0K | 160 | 136 |
| 53 | Oncology | 480 | 41.5K | 14 | 11 |
| 54 | Public Health | 757 | 41.1K | 102 | 74 |
| 55 | Electronics | 640 | 40.8K | 48 | 17 |
| 56 | Neurophysiology | 548 | 40.3K | 69 | 69 |
| 57 | Physiology | 1,033 | 39.3K | 48 | 69 |
| 58 | Endocrinology | 696 | 39.1K | 63 | 79 |
| 59 | Environmental Engineering | 617 | 39.0K | 28 | 28 |
| 60 | Soil Science | 590 | 38.2K | 8 | 4 |
| 61 | Economics | 740 | 37.8K | 44 | 45 |
| 62 | Surgery | 333 | 37.4K | 37 | 42 |
| 63 | Mathematics | 2,093 | 36.9K | 17 | 25 |
| 64 | Environmental Health | 614 | 36.9K | 85 | 81 |
| 65 | Nutrition | 782 | 36.0K | 22 | 26 |
| 66 | Research Design | 114 | 35.6K | 55 | 9 |
| 67 | Intercultural Communication | 9 | 34.6K | 156 | 1 |
| 68 | Cross-Cultural Studies | 10 | 34.5K | 264 | 1 |
| 69 | personality | 424 | 34.0K | 7 | 14 |
| 70 | Liposomes | 36 | 33.5K | 33 | 4 |
| 71 | Lipid bilayers | 34 | 33.3K | 32 | 4 |
| 72 | Education | 1,433 | 32.4K | 5 | 17 |
| 73 | Radio waves | 744 | 32.3K | 2 | 2 |
| 74 | Chemical Engineering | 600 | 31.4K | 142 | 103 |
| 75 | Bioengineering | 477 | 31.4K | 84 | 85 |
| 76 | Microbial Ecology | 416 | 31.2K | 21 | 35 |
| 77 | Geography | 690 | 30.5K | 2 | 7 |
| 78 | Psychometrics | 145 | 30.1K | 11 | 1 |
| 79 | Plant cells | 205 | 29.9K | 37 | 30 |
| 80 | Metabolism | 379 | 29.7K | 91 | 83 |
| 81 | Child Development | 520 | 28.1K | 21 | 30 |
| 82 | Metabolic diseases | 302 | 27.5K | 88 | 72 |
| 83 | Statistics | 636 | 27.4K | 23 | 31 |
| 84 | Immunity | 233 | 26.9K | 66 | 79 |
| 85 | marketing | 206 | 26.2K | 21 | 21 |
| 86 | Electrochemistry | 604 | 26.0K | 92 | 36 |
| 87 | Obstetrics | 776 | 25.9K | 22 | 27 |
| 88 | Plants | 235 | 25.8K | 37 | 31 |
| 89 | nucleic acids | 330 | 25.8K | 18 | 42 |
| 90 | environmental pollution | 585 | 25.7K | 39 | 48 |
| 91 | Medical Microbiology | 354 | 25.5K | 17 | 20 |
| 92 | Telecommunication | 333 | 25.4K | 77 | 42 |
| 93 | Animal Behavior | 350 | 25.1K | 45 | 30 |
| 94 | Cardiovascular system | 329 | 25.0K | 43 | 57 |
| 95 | Operations Research | 360 | 24.7K | 18 | 10 |
| 96 | Plant diseases | 624 | 24.0K | 8 | 9 |
| 97 | Biomedical Engineering | 507 | 23.2K | 106 | 74 |
| 98 | Environmental Policy | 306 | 22.8K | 42 | 32 |
| 99 | Geophysics | 597 | 22.7K | 130 | 143 |
| 100 | Geology | 479 | 21.7K | 87 | 93 |
| 101 | Catalysis | 423 | 21.5K | 153 | 146 |
| 102 | Speech | 351 | 21.4K | 7 | 2 |
| 103 | Brain | 411 | 21.4K | 76 | 76 |
| 104 | Pathology | 354 | 21.4K | 41 | 36 |
| 105 | viruses | 337 | 21.3K | 30 | 39 |
| 106 | Entomology | 732 | 21.2K | 13 | 17 |
| 107 | Biocompatible Materials | 362 | 21.1K | 161 | 152 |
| 108 | plant molecular biology | 199 | 21.1K | 43 | 40 |
| 109 | Polymers | 437 | 20.9K | 223 | 146 |
| 110 | Genomics | 424 | 20.8K | 37 | 35 |
| 111 | Speech Disorders | 366 | 20.8K | 16 | 5 |
| 112 | Meteorology | 290 | 20.8K | 95 | 73 |
| 113 | Social Sciences | 657 | 20.8K | 19 | 18 |
| 114 | Child | 751 | 20.7K | 13 | 18 |
| 115 | soil microbiology | 265 | 20.7K | 19 | 19 |
| 116 | Ethology | 254 | 20.5K | 44 | 24 |
| 117 | Pharmaceutical Chemistry | 545 | 20.3K | 45 | 64 |
| 118 | Neuroimmunology | 252 | 20.0K | 1 | 1 |
| 119 | Production Management | 198 | 19.7K | 7 | 5 |
| 120 | Medical Oncology | 517 | 19.3K | 16 | 28 |
| 121 | Nervous system | 203 | 19.3K | 117 | 73 |
| 122 | Psychoneuroimmunology | 240 | 19.2K | 1 | 1 |
| 123 | Agriculture | 504 | 19.2K | 19 | 12 |
| 124 | Cognition | 301 | 18.8K | 41 | 35 |
| 125 | Child psychology | 463 | 18.7K | 22 | 51 |
| 126 | drug therapy | 570 | 18.6K | 12 | 22 |
| 127 | Biochemical Engineering | 215 | 18.6K | 178 | 149 |
| 128 | Food | 275 | 18.4K | 52 | 22 |
| 129 | Business | 169 | 18.4K | 38 | 33 |
| 130 | Artificial Intelligence | 270 | 18.1K | 111 | 88 |
| 131 | Biomass Energy | 205 | 18.0K | 55 | 31 |
| 132 | Decision making | 231 | 17.8K | 7 | 11 |
| 133 | Toxicology | 461 | 17.6K | 88 | 85 |
| 134 | Colloids | 311 | 17.6K | 178 | 106 |
| 135 | Medical Laboratory Science | 222 | 17.6K | 37 | 17 |
| 136 | Neurochemistry | 322 | 17.6K | 61 | 55 |
| 137 | Database Management | 169 | 17.5K | 16 | 2 |
| 138 | Optics | 837 | 17.4K | 99 | 106 |
| 139 | transport vesicles | 17 | 17.3K | 21 | 19 |
| 140 | Technology | 349 | 17.3K | 106 | 51 |
| 141 | food technology | 315 | 17.2K | 36 | 18 |
| 142 | Signal Processing | 303 | 17.2K | 95 | 79 |
| 143 | Sports Medicine | 413 | 17.2K | 27 | 30 |
| 144 | Vocational guidance | 409 | 16.8K | 3 | 6 |
| 145 | finance | 154 | 16.4K | 87 | 14 |
| 146 | Developmental Disabilities | 239 | 16.3K | 13 | 11 |
| 147 | Analytical Chemistry | 345 | 16.3K | 185 | 125 |
| 148 | Hypertension | 219 | 16.2K | 85 | 81 |
| 149 | Political Science | 325 | 16.1K | 26 | 21 |
| 150 | Mathematical Physics | 263 | 16.0K | 146 | 61 |
| 151 | Perception | 435 | 15.9K | 33 | 35 |
| 152 | Cytogenetics | 166 | 15.9K | 55 | 50 |
| 153 | Surface Chemistry | 282 | 15.8K | 187 | 111 |
| 154 | Diagnostic microbiology | 189 | 15.8K | 15 | 16 |
| 155 | Information Theory | 203 | 15.8K | 36 | 25 |
| 156 | Climatology | 188 | 15.6K | 86 | 51 |
| 157 | behavioral medicine | 185 | 15.6K | 29 | 19 |
| 158 | Teaching | 329 | 15.5K | 8 | 4 |
| 159 | Statistical physics | 442 | 15.4K | 164 | 130 |
| 160 | Oncogenes | 163 | 15.3K | 28 | 24 |
| 161 | Hydrology | 364 | 15.3K | 35 | 47 |
| 162 | Mental Disorders | 309 | 15.1K | 102 | 115 |
| 163 | sanitation | 170 | 14.9K | 78 | 73 |
| 164 | Diet | 332 | 14.8K | 25 | 51 |
| 165 | Health | 418 | 14.8K | 17 | 20 |
| 166 | environmental protection | 188 | 14.7K | 99 | 29 |
| 167 | Memory | 349 | 14.7K | 39 | 45 |
| 168 | Engineering | 480 | 14.6K | 43 | 39 |
| 169 | Biodiversity conservation | 133 | 14.6K | 75 | 74 |
| 170 | Geochemistry | 281 | 14.5K | 83 | 88 |
| 171 | Soil biology | 196 | 14.4K | 9 | 15 |
| 172 | Organic Chemistry | 486 | 14.4K | 25 | 50 |
| 173 | soil management | 181 | 14.3K | 4 | 1 |
| 174 | Planets | 240 | 14.3K | 95 | 71 |
| 175 | Clinical Chemistry | 378 | 14.2K | 41 | 51 |
| 176 | Environmental monitoring | 219 | 14.0K | 113 | 68 |
| 177 | Neurobiology | 197 | 13.7K | 84 | 85 |
| 178 | Bacteriology | 344 | 13.7K | 34 | 79 |
| 179 | Therapeutics | 243 | 13.6K | 34 | 28 |
| 180 | Developmental Biology | 264 | 13.5K | 91 | 116 |
| 181 | Host-parasite interactions | 152 | 13.5K | 33 | 40 |
| 182 | Agronomy | 274 | 13.4K | 15 | 10 |
| 183 | Virulence | 157 | 13.3K | 26 | 28 |
| 184 | tillage | 156 | 13.2K | 3 | 1 |
| 185 | Molecular Genetics | 172 | 13.2K | 63 | 50 |
| 186 | Plant physiology | 200 | 13.2K | 70 | 63 |
| 187 | Ergonomics | 629 | 13.1K | 5 | 5 |
| 188 | Leukemia | 238 | 13.1K | 10 | 23 |
| 189 | commerce | 90 | 13.0K | 47 | 36 |
| 190 | Pediatric Neurology | 75 | 13.0K | 89 | 51 |
| 191 | Economic History | 273 | 12.9K | 75 | 30 |
| 192 | Agricultural Ecology | 240 | 12.9K | 7 | 8 |
| 193 | Automation | 185 | 12.8K | 116 | 96 |
| 194 | Cell differentiation | 206 | 12.6K | 63 | 94 |
| 195 | Econometrics | 153 | 12.5K | 43 | 41 |
| 196 | nanoscience | 133 | 12.4K | 254 | 152 |
| 197 | Adolescent | 619 | 12.2K | 14 | 29 |
| 198 | Social behavior | 203 | 12.0K | 10 | 17 |
| 199 | gene mapping | 201 | 12.0K | 46 | 56 |
| 200 | Attention | 334 | 11.9K | 33 | 34 |
| 201 | Earth Sciences | 230 | 11.9K | 122 | 112 |
| 202 | Physical Therapy | 279 | 11.8K | 18 | 24 |
| 203 | Cybernetics | 199 | 11.7K | 23 | 26 |
| 204 | Climate change | 70 | 11.7K | 83 | 68 |
| 205 | Eutrophication | 68 | 11.7K | 85 | 68 |
| 206 | Regional Planning | 303 | 11.6K | 7 | 15 |
| 207 | Health Education | 417 | 11.5K | 17 | 24 |
| 208 | Environmental Chemistry | 165 | 11.4K | 40 | 79 |
| 209 | Neuropsychology | 299 | 11.3K | 51 | 66 |
| 210 | Cognitive Science | 144 | 11.3K | 31 | 35 |
| 211 | Critical Care | 174 | 11.2K | 74 | 97 |
| 212 | Critical Care Medicine | 174 | 11.2K | 75 | 98 |
| 213 | genome | 153 | 11.0K | 52 | 87 |
| 214 | Radiobiology | 264 | 11.0K | 33 | 42 |
| 215 | Agricultural Chemistry | 226 | 10.8K | 69 | 43 |
| 216 | biological evolution | 201 | 10.8K | 93 | 160 |
| 217 | Water | 196 | 10.6K | 102 | 133 |
| 218 | Nursing | 378 | 10.5K | 4 | 7 |
| 219 | Bioinformatics | 238 | 10.5K | 36 | 80 |
| 220 | Computational Biology | 279 | 10.5K | 47 | 109 |
| 221 | Ophthalmology | 254 | 10.4K | 75 | 74 |
| 222 | Insects | 141 | 10.4K | 32 | 9 |
| 223 | Combinatorial analysis | 222 | 10.3K | 9 | 2 |
| 224 | Population Genetics | 104 | 10.2K | 68 | 38 |
| 225 | Immunotherapy | 135 | 10.1K | 81 | 72 |
| 226 | Neurons | 46 | 10.1K | 92 | 90 |
| 227 | Mental illness | 217 | 10.0K | 72 | 103 |
| 228 | rehabilitation | 325 | 10.0K | 32 | 49 |
| 229 | Clinical Psychology | 265 | 9.9K | 15 | 52 |
| 230 | Immune system | 50 | 9.9K | 117 | 90 |
| 231 | Adolescent Medicine | 125 | 9.9K | 19 | 13 |
| 232 | Pharmacy | 420 | 9.8K | 22 | 43 |
| 233 | Visual Perception | 278 | 9.8K | 40 | 41 |
| 234 | Chromosome mapping | 180 | 9.8K | 35 | 42 |
| 235 | Computer Graphics | 292 | 9.8K | 35 | 49 |
| 236 | Signal Transduction | 139 | 9.7K | 29 | 26 |
| 237 | Cognitive neuroscience | 120 | 9.7K | 51 | 59 |
| 238 | Family | 301 | 9.7K | 7 | 8 |
| 239 | counseling | 375 | 9.6K | 6 | 14 |
| 240 | Educational Psychology | 259 | 9.5K | 17 | 35 |
| 241 | Environmental Microbiology | 100 | 9.5K | 36 | 18 |
| 242 | Anatomy | 214 | 9.4K | 74 | 93 |
| 243 | Body Image | 68 | 9.4K | 4 | 1 |
| 244 | Dermatology | 418 | 9.3K | 33 | 59 |
| 245 | Physical Chemistry | 204 | 9.3K | 86 | 89 |
| 246 | Epidemiology | 322 | 9.2K | 130 | 195 |
| 247 | Aging | 418 | 9.2K | 54 | 130 |
| 248 | Environmental Management | 211 | 9.2K | 48 | 67 |
| 249 | polymerization | 247 | 9.2K | 312 | 256 |
| 250 | Psychosomatic Medicine | 70 | 9.2K | 48 | 15 |
| 251 | Land use | 153 | 9.2K | 4 | 2 |
| 252 | actuators | 151 | 9.1K | 83 | 44 |
| 252 | transducers | 151 | 9.1K | 83 | 44 |
| 254 | Psychopharmacology | 147 | 9.1K | 83 | 91 |
| 255 | Muscles | 146 | 9.0K | 7 | 3 |
| 256 | Health Policy | 178 | 9.0K | 101 | 58 |
| 257 | Molecular Spectroscopy | 285 | 8.9K | 7 | 5 |
| 258 | Human Geography | 206 | 8.8K | 18 | 23 |
| 259 | Membranes | 163 | 8.8K | 88 | 85 |
| 260 | Orthopedics | 224 | 8.8K | 34 | 30 |
| 261 | Developmental Psychology | 168 | 8.7K | 34 | 42 |
| 262 | Molecular ecology | 89 | 8.7K | 68 | 48 |
| 263 | Transplantation | 225 | 8.7K | 40 | 62 |
| 264 | Economic Development | 152 | 8.7K | 37 | 43 |
| 265 | Microelectronics | 167 | 8.7K | 84 | 111 |
| 266 | Molecular Microbiology | 125 | 8.7K | 18 | 31 |
| 267 | miniaturization | 113 | 8.6K | 135 | 124 |
| 268 | Parenteral nutrition | 152 | 8.6K | 6 | 25 |
| 269 | Bioorganic chemistry | 251 | 8.6K | 53 | 88 |
| 270 | Linguistics | 222 | 8.6K | 20 | 29 |
| 271 | Entrepreneurship | 43 | 8.5K | 54 | 27 |
| 272 | cell physiology | 175 | 8.5K | 54 | 78 |
| 273 | Control Theory | 150 | 8.5K | 86 | 33 |
| 274 | Renewable Energy Sources | 83 | 8.4K | 243 | 177 |
| 275 | Biomechanics | 179 | 8.4K | 33 | 46 |
| 276 | Sports | 229 | 8.3K | 44 | 44 |
| 277 | Mechanical Engineering | 267 | 8.3K | 56 | 28 |
| 278 | Wireless Communication Systems | 218 | 8.2K | 108 | 107 |
| 279 | Transportation | 191 | 8.2K | 73 | 60 |
| 280 | Graph Theory | 127 | 8.2K | 9 | 2 |
| 281 | Geriatrics | 466 | 8.2K | 61 | 145 |
| 282 | Nanostructured Materials | 194 | 8.1K | 210 | 212 |
| 283 | Reproduction | 261 | 8.0K | 69 | 86 |
| 284 | Electrical Engineering | 427 | 8.0K | 68 | 69 |
| 285 | soil conservation | 100 | 7.9K | 10 | 2 |
| 286 | Chemotherapy | 282 | 7.9K | 4 | 11 |
| 287 | Growth | 119 | 7.8K | 83 | 114 |
| 288 | gene therapy | 89 | 7.8K | 53 | 26 |
| 289 | Neuromuscular diseases | 137 | 7.7K | 6 | 3 |
| 290 | Health promotion | 252 | 7.7K | 23 | 39 |
| 291 | Public Administration | 169 | 7.6K | 30 | 32 |
| 291 | Microorganisms | 71 | 7.6K | 38 | 32 |
| 293 | Learning | 153 | 7.6K | 47 | 53 |
| 294 | Psycholinguistics | 150 | 7.6K | 30 | 40 |
| 295 | Allergy | 118 | 7.6K | 67 | 117 |
| 296 | Matroids | 83 | 7.5K | 4 | 1 |
| 297 | organization | 59 | 7.4K | 56 | 51 |
| 298 | Genetic therapy | 154 | 7.4K | 27 | 28 |
| 299 | Political Psychology | 78 | 7.3K | 3 | 3 |
| 300 | Plant Ecology | 123 | 7.3K | 91 | 90 |
| 301 | Genetic engineering | 158 | 7.3K | 52 | 67 |
| 302 | Drug delivery systems | 66 | 7.3K | 102 | 39 |
| 303 | Fisheries | 200 | 7.3K | 48 | 35 |
| 304 | Developing countries | 158 | 7.2K | 76 | 56 |
| 305 | arthritis | 116 | 7.2K | 81 | 79 |
| 306 | Respiration | 213 | 7.2K | 43 | 69 |
| 307 | mass transfer | 102 | 7.2K | 119 | 59 |
| 308 | carcinogens | 155 | 7.2K | 11 | 14 |
| 309 | Breeding | 191 | 7.1K | 32 | 31 |
| 310 | Medical Anthropology | 118 | 7.1K | 70 | 68 |
| 311 | System analysis | 187 | 7.1K | 52 | 43 |
| 312 | Glass | 323 | 7.1K | 7 | 36 |
| 313 | Nanostructures | 42 | 7.0K | 291 | 86 |
| 314 | Obesity | 197 | 7.0K | 82 | 111 |
| 315 | Plastics | 90 | 7.0K | 82 | 15 |
| 316 | Ceramics | 337 | 7.0K | 13 | 39 |
| 317 | pottery | 319 | 6.9K | 7 | 36 |
| 318 | consumer behavior | 106 | 6.9K | 2 | 5 |
| 319 | computer networks | 223 | 6.9K | 58 | 74 |
| 320 | Organizational Behavior | 64 | 6.9K | 27 | 21 |
| 321 | Evolution | 153 | 6.9K | 118 | 181 |
| 322 | Environmental Law | 29 | 6.9K | 200 | 36 |
| 323 | Meteorites | 107 | 6.9K | 90 | 98 |
| 324 | Medical Physics | 175 | 6.8K | 97 | 84 |
| 325 | Image Processing | 126 | 6.8K | 155 | 139 |
| 326 | Forest Management | 98 | 6.8K | 62 | 34 |
| 327 | Analytical Biochemistry | 114 | 6.7K | 42 | 30 |
| 328 | plasticity | 71 | 6.7K | 6 | 6 |
| 329 | Tribology | 163 | 6.7K | 29 | 20 |
| 330 | Energy Policy | 99 | 6.7K | 207 | 145 |
| 331 | Criminology | 156 | 6.7K | 32 | 18 |
| 332 | Ecological Engineering | 129 | 6.7K | 1 | 1 |
| 333 | Forest Ecology | 91 | 6.6K | 68 | 34 |
| 334 | Energy Conversion | 54 | 6.6K | 147 | 129 |
| 335 | land degradation | 77 | 6.6K | 6 | 1 |
| 335 | degradation | 77 | 6.6K | 6 | 1 |
| 337 | Vaccines | 138 | 6.6K | 76 | 45 |
| 338 | city planning | 180 | 6.6K | 37 | 36 |
| 339 | Structural Engineering | 106 | 6.5K | 147 | 71 |
| 340 | Embryology | 147 | 6.5K | 102 | 144 |
| 341 | psychotherapy | 115 | 6.5K | 84 | 89 |
| 342 | families | 198 | 6.4K | 9 | 7 |
| 343 | energy conservation | 77 | 6.4K | 191 | 134 |
| 344 | Water pollution | 120 | 6.3K | 209 | 200 |
| 345 | Social work | 371 | 6.3K | 17 | 20 |
| 346 | Disease | 18 | 6.3K | 34 | 59 |
| 347 | Sleep Disorders | 136 | 6.3K | 70 | 63 |
| 348 | Food Microbiology | 138 | 6.3K | 23 | 41 |
| 349 | Emergency Medicine | 303 | 6.2K | 21 | 35 |
| 350 | Oceanography | 110 | 6.2K | 188 | 139 |
| 351 | Manufacturing Processes | 220 | 6.2K | 82 | 88 |
| 351 | Molecules | 92 | 6.2K | 141 | 38 |
| 353 | Europe | 169 | 6.2K | 203 | 117 |
| 354 | Sleep | 133 | 6.1K | 75 | 68 |
| 355 | Oxidation-reduction | 99 | 6.1K | 6 | 16 |
| 356 | preventive medicine | 135 | 6.1K | 48 | 66 |
| 357 | diseases | 12 | 6.0K | 77 | 68 |
| 358 | Animal ecology | 114 | 5.9K | 59 | 49 |
| 359 | Composite Materials | 131 | 5.8K | 261 | 252 |
| 360 | mutagens | 111 | 5.8K | 14 | 14 |
| 361 | Carcinogenesis | 120 | 5.8K | 15 | 15 |
| 362 | Diabetes | 121 | 5.7K | 177 | 206 |
| 363 | Intellectual disability | 164 | 5.7K | 16 | 16 |
| 364 | Social problems | 66 | 5.7K | 22 | 12 |
| 365 | Molecular structure | 100 | 5.7K | 153 | 114 |
| 366 | Communication in medicine | 138 | 5.7K | 9 | 6 |
| 367 | Environmental Toxicology | 116 | 5.6K | 104 | 108 |
| 368 | Medical innovations | 72 | 5.6K | 43 | 76 |
| 369 | Sustainable Development | 57 | 5.6K | 134 | 71 |
| 370 | Rheumatology | 88 | 5.6K | 80 | 69 |
| 371 | Aquaculture | 136 | 5.5K | 78 | 49 |
| 372 | Histology | 124 | 5.5K | 98 | 105 |
| 373 | enzymes | 139 | 5.5K | 30 | 35 |
| 374 | Soil ecology | 103 | 5.5K | 9 | 12 |
| 375 | proteins | 170 | 5.5K | 66 | 106 |
| 376 | Wildlife conservation | 96 | 5.5K | 47 | 54 |
| 377 | Criminal psychology | 78 | 5.5K | 50 | 21 |
| 378 | Antioxidants | 95 | 5.4K | 5 | 15 |
| 379 | Power Electronics | 84 | 5.4K | 105 | 81 |
| 380 | free radicals | 110 | 5.4K | 45 | 81 |
| 381 | Paleoclimatology | 84 | 5.3K | 73 | 38 |
| 382 | plant communities | 87 | 5.3K | 56 | 66 |
| 383 | Gerontology | 332 | 5.3K | 47 | 68 |
| 384 | Cell death | 82 | 5.2K | 84 | 145 |
| 385 | Zoology | 157 | 5.2K | 151 | 114 |
| 386 | Industrial Engineering | 142 | 5.2K | 67 | 61 |
| 387 | Language Disorders | 238 | 5.1K | 13 | 27 |
| 388 | Autism | 99 | 5.1K | 21 | 26 |
| 389 | optical instruments | 141 | 5.1K | 8 | 12 |
| 390 | Diabetes mellitus | 114 | 5.1K | 164 | 212 |
| 391 | Biogeochemistry | 85 | 5.1K | 87 | 92 |
| 392 | cryosphere | 62 | 5.1K | 26 | 17 |
| 393 | Paleogeography | 89 | 5.0K | 29 | 22 |
| 394 | Demography | 87 | 5.0K | 32 | 25 |
| 395 | Stem cells | 124 | 5.0K | 71 | 83 |
| 396 | Lipids | 68 | 5.0K | 105 | 61 |
| 397 | Environmental pollutants | 109 | 5.0K | 97 | 66 |
| 398 | water supply | 90 | 5.0K | 65 | 70 |
| 399 | crime | 92 | 5.0K | 19 | 13 |
| 400 | Data Mining | 54 | 5.0K | 112 | 67 |
| 401 | Dynamics | 150 | 4.9K | 16 | 7 |
| 402 | Cell metabolism | 23 | 4.9K | 107 | 79 |
| 403 | Liver diseases | 63 | 4.9K | 201 | 205 |
| 404 | innovation | 24 | 4.9K | 70 | 28 |
| 405 | Substance Abuse | 211 | 4.9K | 49 | 67 |
| 406 | Biometrics | 192 | 4.9K | 28 | 59 |
| 407 | Sustainable agriculture | 83 | 4.8K | 20 | 8 |
| 408 | Homeostasis | 18 | 4.8K | 96 | 79 |
| 409 | health services | 196 | 4.8K | 19 | 24 |
| 410 | Politics | 104 | 4.8K | 20 | 10 |
| 410 | government | 104 | 4.8K | 36 | 13 |
| 412 | Dentistry | 194 | 4.8K | 15 | 10 |
| 413 | Birds | 229 | 4.8K | 17 | 28 |
| 414 | Special Education | 199 | 4.7K | 13 | 20 |
| 415 | visualization | 313 | 4.7K | 7 | 19 |
| 416 | Industrial Microbiology | 91 | 4.7K | 89 | 97 |
| 417 | Public Policy | 178 | 4.7K | 41 | 67 |
| 418 | Fluid Dynamics | 104 | 4.7K | 57 | 30 |
| 419 | Microwaves | 200 | 4.7K | 47 | 54 |
| 420 | Venture Capital | 17 | 4.7K | 35 | 20 |
| 421 | pollutants | 92 | 4.7K | 87 | 61 |
| 422 | United Kingdom | 95 | 4.7K | 126 | 124 |
| 423 | Electromagnetism | 100 | 4.7K | 39 | 13 |
| 424 | violence | 135 | 4.6K | 17 | 30 |
| 425 | infection | 63 | 4.6K | 175 | 77 |
| 426 | child abuse | 164 | 4.6K | 9 | 36 |
| 427 | Nuclear Energy | 112 | 4.6K | 66 | 18 |
| 428 | Exercise | 93 | 4.5K | 56 | 28 |
| 429 | alcoholism | 221 | 4.5K | 49 | 102 |
| 430 | drug development | 58 | 4.5K | 64 | 88 |
| 431 | Great Lakes | 108 | 4.5K | 13 | 6 |
| 432 | Child welfare | 211 | 4.5K | 12 | 20 |
| 433 | Cosmochemistry | 94 | 4.5K | 22 | 26 |
| 434 | Women's health | 156 | 4.5K | 22 | 21 |
| 435 | Paleoecology | 82 | 4.5K | 60 | 36 |
| 436 | Quality Control | 136 | 4.5K | 23 | 33 |
| 437 | Pharmacogenetics | 94 | 4.4K | 31 | 28 |
| 438 | Political Sociology | 60 | 4.4K | 20 | 8 |
| 439 | Adolescent Psychology | 130 | 4.4K | 12 | 26 |
| 440 | RNA | 98 | 4.4K | 2 | 11 |
| 441 | Molecular evolution | 88 | 4.3K | 90 | 129 |
| 442 | Urban Economics | 72 | 4.3K | 7 | 7 |
| 443 | Recombinant DNA | 92 | 4.3K | 53 | 33 |
| 444 | Pharmacognosy | 97 | 4.3K | 104 | 90 |
| 445 | Neural circuitry | 43 | 4.3K | 303 | 91 |
| 446 | Veterinary Immunology | 114 | 4.3K | 9 | 4 |
| 447 | Measurement | 111 | 4.3K | 40 | 19 |
| 448 | Light | 62 | 4.3K | 61 | 118 |
| 449 | world | 74 | 4.3K | 34 | 33 |
| 450 | medical education | 202 | 4.3K | 87 | 109 |
| 451 | Microbial Genetics | 50 | 4.2K | 11 | 7 |
| 452 | phytopathogenic bacteria | 47 | 4.2K | 11 | 6 |
| 453 | Parasitology | 164 | 4.2K | 87 | 105 |
| 454 | Enteral nutrition | 70 | 4.2K | 29 | 57 |
| 455 | Infections | 44 | 4.2K | 150 | 71 |
| 456 | Biodiversity | 121 | 4.2K | 118 | 195 |
| 457 | auditory perception | 69 | 4.2K | 6 | 9 |
| 458 | data collection | 29 | 4.2K | 132 | 50 |
| 459 | Genetic regulation | 94 | 4.1K | 49 | 112 |
| 460 | Mental Health | 182 | 4.1K | 39 | 55 |
| 461 | Medical Technology | 98 | 4.1K | 45 | 31 |
| 462 | Smoking | 166 | 4.1K | 27 | 41 |
| 463 | Fishery management | 88 | 4.1K | 30 | 12 |
| 464 | adolescence | 120 | 4.1K | 36 | 52 |
| 465 | natural products | 108 | 4.1K | 71 | 64 |
| 466 | Health Services Research | 81 | 4.1K | 150 | 101 |
| 467 | Molecular Pharmacology | 87 | 4.0K | 26 | 30 |
| 468 | energy resources | 55 | 4.0K | 115 | 122 |
| 469 | Bacterial infections | 29 | 4.0K | 105 | 64 |
| 470 | mycoses | 21 | 4.0K | 157 | 63 |
| 471 | Cosmology | 65 | 4.0K | 20 | 13 |
| 472 | behavior modification | 105 | 4.0K | 17 | 27 |
| 473 | Lung Transplantation | 92 | 4.0K | 24 | 29 |
| 473 | Heart transplantation | 92 | 4.0K | 24 | 29 |
| 475 | drug addiction | 173 | 4.0K | 46 | 85 |
| 476 | sustainability | 29 | 3.9K | 103 | 41 |
| 477 | human development | 88 | 3.9K | 38 | 53 |
| 478 | Spine | 59 | 3.9K | 70 | 56 |
| 479 | Molecular cloning | 81 | 3.9K | 54 | 39 |
| 479 | Genetic recombination | 81 | 3.9K | 52 | 37 |
| 481 | Paleontology | 120 | 3.9K | 77 | 48 |
| 482 | Vision | 105 | 3.9K | 38 | 61 |
| 483 | nuclear magnetic resonance | 153 | 3.9K | 37 | 50 |
| 484 | Hearing | 191 | 3.9K | 16 | 31 |
| 485 | language | 305 | 3.8K | 1 | 32 |
| 486 | Quantitative Research | 82 | 3.8K | 5 | 6 |
| 487 | Algebra | 298 | 3.8K | 6 | 7 |
| 488 | Gene expression regulation | 82 | 3.7K | 45 | 96 |
| 489 | Animal breeding | 67 | 3.7K | 78 | 26 |
| 490 | Agricultural Science | 38 | 3.7K | 21 | 11 |
| 491 | Evidence-Based Medicine | 124 | 3.7K | 9 | 6 |
| 492 | behavior therapy | 133 | 3.7K | 30 | 61 |
| 493 | Heart Failure | 104 | 3.7K | 22 | 30 |
| 494 | Metallography | 60 | 3.7K | 46 | 8 |
| 495 | nuclear astrophysics | 57 | 3.7K | 12 | 9 |
| 496 | Plant tissue culture | 73 | 3.7K | 18 | 6 |
| 497 | Learning disabilities | 149 | 3.6K | 14 | 27 |
| 498 | Health Services Administration | 71 | 3.6K | 56 | 35 |
| 499 | Mycology | 111 | 3.6K | 89 | 116 |
| 500 | Robotics | 119 | 3.6K | 81 | 101 |
| 501 | Occupational Therapy | 208 | 3.6K | 20 | 17 |
| 502 | China | 155 | 3.6K | 155 | 138 |
| 503 | Social perception | 42 | 3.6K | 3 | 1 |
| 504 | economic policy | 168 | 3.6K | 55 | 89 |
| 505 | Nuclear Chemistry | 54 | 3.5K | 105 | 10 |
| 506 | Systems Biology | 107 | 3.5K | 53 | 54 |
| 507 | Plant cell culture | 52 | 3.5K | 23 | 6 |
| 508 | mathematical analysis | 206 | 3.5K | 82 | 85 |
| 509 | Speech Perception | 50 | 3.5K | 13 | 12 |
| 510 | Photonics | 41 | 3.5K | 458 | 267 |
| 511 | Civil Engineering | 184 | 3.5K | 40 | 33 |
| 512 | Computer Vision | 74 | 3.5K | 79 | 129 |
| 513 | older people | 304 | 3.4K | 39 | 62 |
| 514 | Engineering Mathematics | 84 | 3.4K | 137 | 68 |
| 515 | Tourism | 42 | 3.4K | 246 | 164 |
| 516 | Clinical Immunology | 99 | 3.4K | 56 | 50 |
| 517 | Otolaryngology | 137 | 3.4K | 17 | 26 |
| 518 | Phonetics | 82 | 3.4K | 4 | 7 |
| 519 | Nuclear Engineering | 237 | 3.4K | 54 | 57 |
| 520 | Magnetic Resonance Spectroscopy | 140 | 3.3K | 46 | 61 |
| 521 | Kidney diseases | 53 | 3.3K | 90 | 54 |
| 522 | Inflammation | 41 | 3.3K | 98 | 38 |
| 523 | Youth | 80 | 3.3K | 22 | 33 |
| 524 | Radiochemistry | 35 | 3.3K | 158 | 11 |
| 525 | Nonlinear Dynamics | 124 | 3.3K | 219 | 251 |
| 526 | Geodesy | 104 | 3.3K | 12 | 11 |
| 527 | Family Therapy | 169 | 3.3K | 8 | 10 |
| 528 | Economic planning | 100 | 3.3K | 1 | 5 |
| 529 | Earthquake Engineering | 55 | 3.2K | 245 | 143 |
| 530 | Experimental Psychology | 74 | 3.2K | 23 | 51 |
| 531 | Geographic information systems | 91 | 3.2K | 23 | 7 |
| 532 | Sound | 82 | 3.2K | 51 | 51 |
| 533 | Urban Policy | 60 | 3.2K | 33 | 13 |
| 534 | Radiography | 75 | 3.2K | 68 | 103 |
| 535 | Community Psychology | 47 | 3.2K | 43 | 56 |
| 536 | Production Engineering | 145 | 3.2K | 85 | 87 |
| 537 | Industrial Safety | 102 | 3.2K | 23 | 46 |
| 538 | Nephrology | 46 | 3.2K | 69 | 50 |
| 539 | educational innovations | 290 | 3.2K | 1 | 5 |
| 540 | Developmental Genetics | 52 | 3.2K | 62 | 97 |
| 541 | Marriage | 120 | 3.1K | 8 | 9 |
| 542 | Pharmaceutical Technology | 54 | 3.1K | 155 | 79 |
| 543 | Hormones | 93 | 3.1K | 70 | 107 |
| 544 | Magnetic Resonance Imaging | 111 | 3.1K | 11 | 22 |
| 545 | Combustion | 82 | 3.1K | 127 | 115 |
| 546 | epilepsy | 96 | 3.1K | 32 | 33 |
| 547 | Dietetics | 208 | 3.1K | 6 | 21 |
| 548 | global environmental change | 35 | 3.1K | 89 | 55 |
| 549 | biopolymers | 47 | 3.1K | 191 | 94 |
| 550 | Solid State Chemistry | 83 | 3.1K | 336 | 191 |
| 551 | Proteome | 69 | 3.1K | 70 | 94 |
| 552 | Intelligent Transportation Systems | 60 | 3.1K | 93 | 78 |
| 553 | Mobile Computing | 59 | 3.0K | 92 | 55 |
| 554 | Mechatronics | 61 | 3.0K | 53 | 29 |
| 555 | Conservation Biology | 82 | 3.0K | 54 | 99 |
| 556 | Soft Condensed Matter | 48 | 3.0K | 183 | 83 |
| 557 | Strategic planning | 35 | 3.0K | 41 | 18 |
| 558 | Superconductors | 199 | 3.0K | 28 | 31 |
| 559 | Development | 63 | 3.0K | 44 | 52 |
| 560 | Mineralogy | 104 | 3.0K | 120 | 182 |
| 561 | recreation | 146 | 3.0K | 9 | 11 |
| 562 | Differential Equations | 73 | 3.0K | 54 | 22 |
| 563 | Parasitic Diseases | 79 | 3.0K | 139 | 154 |
| 564 | Astrocytes | 36 | 2.9K | 29 | 27 |
| 565 | Economic Assistance | 52 | 2.9K | 40 | 42 |
| 566 | Philosophy | 264 | 2.9K | 45 | 63 |
| 567 | fertility | 73 | 2.9K | 96 | 116 |
| 568 | Software Engineering | 85 | 2.9K | 44 | 73 |
| 569 | Risk | 55 | 2.9K | 22 | 26 |
| 570 | Boundary Value Problems | 72 | 2.8K | 31 | 14 |
| 571 | Probability | 74 | 2.8K | 14 | 22 |
| 572 | Antenna Arrays | 71 | 2.8K | 26 | 14 |
| 573 | vibration | 91 | 2.8K | 58 | 75 |
| 574 | Anthropology | 236 | 2.8K | 52 | 100 |
| 575 | environmental exposure | 55 | 2.8K | 165 | 109 |
| 576 | health behavior | 96 | 2.8K | 63 | 84 |
| 577 | Systems Engineering | 82 | 2.8K | 160 | 139 |
| 578 | Geomorphology | 53 | 2.8K | 183 | 146 |
| 579 | Nutrition physiology | 38 | 2.8K | 61 | 27 |
| 580 | Small Business | 21 | 2.8K | 141 | 97 |
| 581 | Bacteriophages | 13 | 2.8K | 3 | 1 |
| 582 | Infertility | 65 | 2.8K | 95 | 111 |
| 582 | protein | 93 | 2.8K | 59 | 122 |
| 584 | International Relations | 67 | 2.8K | 108 | 51 |
| 585 | Food service management | 47 | 2.7K | 24 | 25 |
| 586 | pain | 91 | 2.7K | 108 | 189 |
| 587 | Archaeology | 105 | 2.7K | 108 | 103 |
| 588 | Reading | 113 | 2.7K | 10 | 27 |
| 589 | Plant genetic engineering | 58 | 2.7K | 63 | 77 |
| 589 | Mass Spectrometry | 102 | 2.7K | 43 | 74 |
| 591 | Combinatorial chemistry | 49 | 2.7K | 65 | 72 |
| 592 | Optical materials | 55 | 2.7K | 517 | 462 |
| 593 | Communication in politics | 33 | 2.7K | 4 | 1 |
| 594 | peace | 67 | 2.7K | 16 | 34 |
| 594 | ecosystem | 60 | 2.7K | 109 | 168 |
| 596 | Insect biochemistry | 42 | 2.6K | 36 | 20 |
| 597 | Rural Development | 66 | 2.6K | 6 | 13 |
| 598 | Ornithology | 148 | 2.6K | 18 | 34 |
| 599 | Fluid Mechanics | 92 | 2.6K | 120 | 147 |
| 600 | Audiology | 110 | 2.6K | 38 | 72 |
| 601 | Medical Imaging | 91 | 2.6K | 11 | 23 |
| 602 | Parallel Processing | 76 | 2.6K | 14 | 29 |
| 603 | Fungi | 39 | 2.6K | 162 | 115 |
| 604 | Plant Genetics | 36 | 2.6K | 88 | 69 |
| 605 | biological factors | 78 | 2.6K | 112 | 153 |
| 606 | machinery | 59 | 2.6K | 38 | 13 |
| 607 | Phylogeny | 51 | 2.6K | 57 | 76 |
| 608 | Music | 150 | 2.6K | 5 | 17 |
| 609 | Physical fitness | 48 | 2.5K | 86 | 75 |
| 610 | Radiation | 77 | 2.5K | 196 | 127 |
| 611 | Landscape Ecology | 35 | 2.5K | 29 | 22 |
| 612 | Organic Geochemistry | 23 | 2.5K | 71 | 38 |
| 613 | Thrombosis | 52 | 2.5K | 144 | 136 |
| 614 | Atmospheric Physics | 69 | 2.5K | 252 | 273 |
| 615 | Emotions | 53 | 2.5K | 49 | 65 |
| 616 | Socialization | 55 | 2.5K | 19 | 26 |
| 617 | Vocational Education | 116 | 2.5K | 4 | 8 |
| 618 | Information Science | 146 | 2.5K | 94 | 266 |
| 619 | Primary health care | 120 | 2.5K | 93 | 127 |
| 620 | Marine Biology | 86 | 2.4K | 362 | 400 |
| 621 | Mental Health Services | 97 | 2.4K | 66 | 72 |
| 621 | Hazardous waste | 31 | 2.4K | 89 | 46 |
| 623 | consumers | 55 | 2.4K | 2 | 5 |
| 624 | Neurosurgery | 65 | 2.4K | 66 | 86 |
| 625 | Databases | 54 | 2.4K | 35 | 34 |
| 626 | international cooperation | 50 | 2.4K | 28 | 30 |
| 627 | Intelligence | 28 | 2.4K | 29 | 20 |
| 628 | Pediatric Nursing | 95 | 2.4K | 7 | 7 |
| 629 | Minority Health | 4 | 2.4K | 37 | 13 |
| 630 | Early Childhood Education | 78 | 2.4K | 15 | 10 |
| 631 | Community Psychiatry | 65 | 2.4K | 78 | 91 |
| 632 | Social interaction | 42 | 2.4K | 12 | 9 |
| 633 | International Finance | 36 | 2.4K | 323 | 118 |
| 634 | Regional Development | 53 | 2.4K | 5 | 3 |
| 634 | Development planning | 53 | 2.4K | 2 | 3 |
| 636 | Electrophysiology | 80 | 2.3K | 60 | 42 |
| 637 | Financial management | 41 | 2.3K | 25 | 24 |
| 638 | Crystallography | 174 | 2.3K | 25 | 86 |
| 639 | Approximation Theory | 101 | 2.3K | 4 | 6 |
| 640 | industrial waste | 27 | 2.3K | 90 | 46 |
| 640 | lasers | 75 | 2.3K | 257 | 178 |
| 642 | Risk Management | 48 | 2.3K | 28 | 30 |
| 643 | Environmental Geology | 68 | 2.3K | 91 | 111 |
| 644 | Plasma devices | 53 | 2.3K | 22 | 22 |
| 645 | Aggression | 51 | 2.3K | 9 | 22 |
| 646 | Drug design | 59 | 2.3K | 98 | 103 |
| 647 | radioactive waste | 21 | 2.3K | 121 | 46 |
| 648 | Obstetric Nursing | 91 | 2.3K | 6 | 5 |
| 649 | Smart Materials | 92 | 2.3K | 34 | 51 |
| 650 | warfare | 45 | 2.3K | 13 | 22 |
| 651 | Bioenergetics | 59 | 2.3K | 65 | 84 |
| 652 | Fertilizers | 28 | 2.3K | 48 | 12 |
| 653 | California | 95 | 2.3K | 13 | 21 |
| 654 | vascular diseases | 48 | 2.3K | 85 | 110 |
| 655 | Digestive system diseases | 78 | 2.3K | 64 | 58 |
| 656 | War and Society | 42 | 2.3K | 10 | 20 |
| 657 | prostaglandins | 48 | 2.3K | 16 | 8 |
| 658 | Histochemistry | 62 | 2.2K | 60 | 50 |
| 659 | Immunopathology | 73 | 2.2K | 124 | 155 |
| 660 | Ultrasonics | 53 | 2.2K | 112 | 93 |
| 661 | Anxiety Disorders | 37 | 2.2K | 66 | 85 |
| 661 | Anxiety | 37 | 2.2K | 67 | 85 |
| 663 | viral genetics | 29 | 2.2K | 62 | 104 |
| 664 | drugs | 86 | 2.2K | 174 | 222 |
| 665 | Genes | 50 | 2.2K | 99 | 58 |
| 666 | sexual behavior | 75 | 2.2K | 27 | 51 |
| 667 | Oxidative stress | 30 | 2.2K | 80 | 77 |
| 668 | Electrochemical Analysis | 44 | 2.2K | 247 | 135 |
| 669 | Environmental Psychology | 33 | 2.1K | 16 | 35 |
| 670 | Magnetic Materials | 27 | 2.1K | 410 | 159 |
| 671 | Radiology | 98 | 2.1K | 89 | 70 |
| 672 | cardiac catheterization | 58 | 2.1K | 63 | 24 |
| 673 | Photography | 369 | 2.1K | 63 | 38 |
| 674 | Computer-Aided Design | 62 | 2.1K | 95 | 92 |
| 675 | North America | 89 | 2.1K | 38 | 29 |
| 676 | Sexual health | 97 | 2.1K | 27 | 59 |
| 677 | Groundwater | 82 | 2.1K | 18 | 27 |
| 678 | Thorax | 74 | 2.1K | 41 | 47 |
| 679 | Transportation Engineering | 33 | 2.1K | 41 | 23 |
| 680 | Energy metabolism | 55 | 2.1K | 62 | 82 |
| 681 | General Surgery | 84 | 2.1K | 66 | 40 |
| 682 | Diagnostic Imaging | 95 | 2.1K | 156 | 245 |
| 683 | plant viruses | 67 | 2.1K | 8 | 8 |
| 684 | DNA polymerases | 18 | 2.1K | 92 | 91 |
| 685 | Traffic Engineering | 19 | 2.1K | 70 | 24 |
| 686 | Parasites | 64 | 2.1K | 112 | 114 |
| 687 | Chemical Ecology | 51 | 2.1K | 28 | 34 |
| 688 | Plant breeding | 89 | 2.1K | 23 | 38 |
| 689 | planning | 92 | 2.1K | 4 | 16 |
| 690 | urban forestry | 58 | 2.1K | 1 | 2 |
| 691 | animal diseases | 49 | 2.1K | 39 | 20 |
| 692 | pheromones | 49 | 2.0K | 22 | 32 |
| 693 | Quality of life | 51 | 2.0K | 132 | 151 |
| 694 | role | 45 | 2.0K | 11 | 17 |
| 695 | Remote Sensing | 144 | 2.0K | 33 | 63 |
| 696 | Information Technology | 38 | 2.0K | 407 | 288 |
| 697 | International security | 26 | 2.0K | 22 | 22 |
| 698 | Semiconductors | 59 | 2.0K | 285 | 140 |
| 699 | Social policy | 77 | 2.0K | 41 | 36 |
| 700 | School Psychology | 82 | 2.0K | 26 | 41 |
| 701 | Clinical Biochemistry | 51 | 2.0K | 107 | 108 |
| 702 | Patient education | 46 | 2.0K | 59 | 60 |
| 702 | Protozoa | 27 | 2.0K | 39 | 32 |
| 704 | animals | 54 | 2.0K | 106 | 54 |
| 705 | Soil fertility | 35 | 2.0K | 20 | 19 |
| 706 | histological techniques | 57 | 2.0K | 30 | 65 |
| 707 | Microscopy | 75 | 2.0K | 72 | 101 |
| 708 | Plant Biotechnology | 35 | 2.0K | 85 | 59 |
| 709 | Ocean Engineering | 34 | 1.9K | 445 | 274 |
| 710 | Land Use Planning | 31 | 1.9K | 30 | 22 |
| 711 | Environmental Education | 68 | 1.9K | 2 | 10 |
| 712 | Experimental Design | 48 | 1.9K | 18 | 29 |
| 713 | probabilities | 142 | 1.9K | 49 | 73 |
| 714 | Structural dynamics | 60 | 1.9K | 108 | 169 |
| 715 | Political Geography | 40 | 1.9K | 19 | 11 |
| 716 | Radio wave propagation | 115 | 1.9K | 7 | 15 |
| 717 | Invertebrates | 78 | 1.9K | 12 | 20 |
| 718 | complementary therapies | 97 | 1.9K | 53 | 92 |
| 719 | health planning | 92 | 1.9K | 120 | 158 |
| 720 | sex crimes | 66 | 1.9K | 24 | 36 |
| 721 | Comparative Physiology | 57 | 1.9K | 75 | 91 |
| 722 | Australia | 91 | 1.8K | 110 | 119 |
| 723 | biological invasions | 28 | 1.8K | 56 | 27 |
| 724 | Maternal health services | 71 | 1.8K | 15 | 15 |
| 725 | Neuropsychiatry | 66 | 1.8K | 48 | 72 |
| 726 | Asia | 75 | 1.8K | 206 | 157 |
| 727 | Sales management | 13 | 1.8K | 53 | 46 |
| 727 | selling | 13 | 1.8K | 53 | 46 |
| 729 | Petrology | 39 | 1.8K | 253 | 232 |
| 730 | Information Systems | 88 | 1.8K | 37 | 97 |
| 731 | Genetic Counseling | 54 | 1.8K | 13 | 5 |
| 732 | Mathematical Economics | 20 | 1.8K | 60 | 56 |
| 733 | Biogeography | 46 | 1.8K | 120 | 208 |
| 734 | international trade | 35 | 1.8K | 50 | 54 |
| 735 | Counseling Psychology | 30 | 1.8K | 30 | 23 |
| 736 | Sociolinguistics | 41 | 1.8K | 20 | 16 |
| 737 | Lipid | 19 | 1.8K | 66 | 28 |
| 738 | Photochemistry | 70 | 1.8K | 92 | 166 |
| 739 | food handling | 56 | 1.8K | 37 | 58 |
| 740 | Population | 56 | 1.8K | 59 | 83 |
| 741 | Chromosomes | 38 | 1.8K | 118 | 104 |
| 742 | coal | 41 | 1.8K | 265 | 268 |
| 743 | cytokines | 40 | 1.8K | 127 | 111 |
| 744 | mammals | 46 | 1.7K | 98 | 63 |
| 745 | Computer Science | 64 | 1.7K | 155 | 103 |
| 745 | Lipid metabolism | 18 | 1.7K | 68 | 30 |
| 747 | Geometry | 139 | 1.7K | 21 | 30 |
| 748 | Nuclear non-proliferation | 15 | 1.7K | 11 | 10 |
| 749 | Alternative Medicine | 79 | 1.7K | 60 | 96 |
| 750 | Proteomics | 41 | 1.7K | 110 | 132 |
| 751 | Nanoparticles | 38 | 1.7K | 343 | 285 |
| 752 | Superconductivity | 56 | 1.7K | 29 | 25 |
| 753 | mutation | 34 | 1.7K | 58 | 52 |
| 754 | Numerical Analysis | 74 | 1.7K | 257 | 236 |
| 755 | Social Change | 42 | 1.7K | 49 | 139 |
| 756 | cell membrane | 39 | 1.7K | 90 | 105 |
| 757 | Algae | 66 | 1.7K | 42 | 83 |
| 757 | Marriage counseling | 52 | 1.7K | 10 | 18 |
| 759 | Educational Technology | 96 | 1.6K | 38 | 133 |
| 760 | economic conditions | 21 | 1.6K | 106 | 57 |
| 761 | Brain damage | 56 | 1.6K | 13 | 24 |
| 762 | Wetland ecology | 45 | 1.6K | 9 | 12 |
| 763 | Economic Thought | 14 | 1.6K | 71 | 56 |
| 764 | Oxidation | 34 | 1.6K | 11 | 8 |
| 765 | Algorithms | 16 | 1.6K | 179 | 16 |
| 766 | Green Chemistry | 42 | 1.6K | 324 | 435 |
| 767 | Particle Physics | 9 | 1.6K | 84 | 23 |
| 768 | gastrointestinal tract | 18 | 1.6K | 42 | 28 |
| 769 | Foodborne diseases | 68 | 1.6K | 7 | 7 |
| 770 | brain mapping | 16 | 1.5K | 204 | 123 |
| 771 | Bones | 43 | 1.5K | 91 | 148 |
| 772 | cell interaction | 37 | 1.5K | 101 | 118 |
| 773 | Animal genetics | 46 | 1.5K | 79 | 76 |
| 774 | Functional Genomics | 19 | 1.5K | 41 | 17 |
| 775 | Carbon | 22 | 1.5K | 363 | 321 |
| 776 | Elderly | 223 | 1.5K | 40 | 53 |
| 777 | Steroids | 73 | 1.5K | 58 | 101 |
| 777 | Elementary particles | 7 | 1.5K | 68 | 23 |
| 779 | Food additives | 58 | 1.5K | 78 | 180 |
| 780 | Number Theory | 126 | 1.5K | 5 | 6 |
| 781 | Bioinorganic chemistry | 66 | 1.5K | 144 | 190 |
| 782 | Quantum electronics | 45 | 1.5K | 279 | 190 |
| 783 | software | 29 | 1.5K | 139 | 76 |
| 784 | Geotechnical Engineering | 54 | 1.5K | 55 | 78 |
| 785 | urban population | 26 | 1.5K | 22 | 35 |
| 786 | Animal Nutrition | 32 | 1.5K | 101 | 58 |
| 787 | Food Policy | 27 | 1.5K | 32 | 27 |
| 787 | agricultural policy | 27 | 1.5K | 21 | 21 |
| 789 | Immunochemistry | 42 | 1.5K | 96 | 75 |
| 790 | Performance | 39 | 1.5K | 11 | 23 |
| 791 | Fracture mechanics | 74 | 1.5K | 146 | 206 |
| 792 | Systems Analysis | 61 | 1.5K | 47 | 59 |
| 793 | Oral communication | 33 | 1.5K | 27 | 16 |
| 794 | Geomagnetism | 36 | 1.5K | 122 | 88 |
| 794 | Mass Media | 73 | 1.5K | 24 | 11 |
| 796 | Labor Economics | 41 | 1.4K | 22 | 41 |
| 797 | Roads | 72 | 1.4K | 84 | 76 |
| 798 | Eating Disorders | 47 | 1.4K | 111 | 130 |
| 799 | Seaweed | 56 | 1.4K | 27 | 73 |
| 799 | Building | 19 | 1.4K | 168 | 46 |
| 801 | Food preferences | 30 | 1.4K | 42 | 39 |
| 802 | Algal blooms | 10 | 1.4K | 83 | 40 |
| 802 | Cyanobacteria | 10 | 1.4K | 83 | 40 |
| 802 | microalgae | 10 | 1.4K | 83 | 40 |
| 805 | Transgenic plants | 38 | 1.4K | 26 | 35 |
| 806 | Primates | 76 | 1.4K | 37 | 79 |
| 807 | feeding behavior | 34 | 1.4K | 112 | 109 |
| 808 | Aerospace Engineering | 22 | 1.4K | 48 | 1 |
| 809 | Human evolution | 38 | 1.4K | 57 | 83 |
| 809 | Detectors | 55 | 1.4K | 146 | 142 |
| 811 | Social Media | 50 | 1.4K | 1 | 4 |
| 812 | soil pollution | 25 | 1.4K | 35 | 10 |
| 813 | Crystallization | 21 | 1.4K | 92 | 19 |
| 814 | Structural design | 54 | 1.4K | 57 | 89 |
| 814 | Immunopharmacology | 25 | 1.4K | 202 | 105 |
| 816 | child behavior | 39 | 1.4K | 32 | 47 |
| 817 | Clinical Pharmacology | 47 | 1.4K | 169 | 166 |
| 818 | environmental indicators | 38 | 1.4K | 90 | 122 |
| 819 | Health insurance | 31 | 1.4K | 76 | 81 |
| 820 | Orthopedic Surgery | 38 | 1.4K | 92 | 60 |
| 821 | disabilities | 37 | 1.3K | 90 | 71 |
| 822 | Law | 55 | 1.3K | 150 | 67 |
| 822 | Economic Geography | 40 | 1.3K | 18 | 25 |
| 822 | fuel cells | 30 | 1.3K | 284 | 344 |
| 825 | Morphology | 63 | 1.3K | 50 | 78 |
| 826 | Natural resources | 50 | 1.3K | 58 | 123 |
| 827 | Carbohydrates | 33 | 1.3K | 29 | 47 |
| 828 | Functional Analysis | 70 | 1.3K | 105 | 133 |
| 829 | Electrophoresis | 54 | 1.3K | 170 | 221 |
| 830 | Consumer education | 52 | 1.3K | 3 | 23 |
| 831 | Aquatic ecology | 52 | 1.3K | 50 | 72 |
| 832 | Comparative Psychology | 12 | 1.3K | 27 | 11 |
| 833 | Clinical Trials | 46 | 1.3K | 57 | 54 |
| 834 | Sarcopenia | 9 | 1.3K | 126 | 35 |
| 835 | Cardiovascular diseases | 90 | 1.3K | 146 | 303 |
| 836 | Microfabrication | 53 | 1.3K | 6 | 9 |
| 837 | Career development | 52 | 1.3K | 4 | 7 |
| 837 | food contamination | 57 | 1.3K | 36 | 37 |
| 839 | Geriatric Oncology | 72 | 1.3K | 16 | 49 |
| 840 | Geobiology | 39 | 1.3K | 31 | 39 |
| 841 | Socioeconomic Factors | 46 | 1.3K | 50 | 67 |
| 841 | Chromatography | 58 | 1.3K | 144 | 167 |
| 843 | Chromatographic analysis | 60 | 1.3K | 207 | 200 |
| 844 | Contraception | 70 | 1.3K | 35 | 64 |
| 845 | Intelligent Control Systems | 62 | 1.3K | 47 | 33 |
| 845 | Europa | 17 | 1.3K | 121 | 37 |
| 847 | Literacy | 53 | 1.3K | 4 | 4 |
| 848 | Growth factors | 20 | 1.3K | 15 | 40 |
| 849 | Financial Institutions | 11 | 1.3K | 81 | 11 |
| 850 | Game Theory | 60 | 1.3K | 23 | 51 |
| 851 | Biogeochemical cycles | 13 | 1.3K | 150 | 147 |
| 852 | Social Issues | 31 | 1.3K | 20 | 27 |
| 852 | tomography | 40 | 1.3K | 24 | 20 |
| 854 | Telecommunication Systems | 39 | 1.2K | 230 | 123 |
| 855 | Food Security | 9 | 1.2K | 37 | 5 |
| 856 | Asthma | 50 | 1.2K | 32 | 40 |
| 857 | Sustainable Engineering | 31 | 1.2K | 332 | 374 |
| 858 | Atmospheric Chemistry | 23 | 1.2K | 291 | 313 |
| 859 | Neuropharmacology | 19 | 1.2K | 127 | 49 |
| 860 | Alzheimer's disease | 100 | 1.2K | 137 | 210 |
| 861 | radiative transfer | 38 | 1.2K | 93 | 75 |
| 862 | Mortgages | 18 | 1.2K | 37 | 11 |
| 863 | Post-traumatic stress disorder | 41 | 1.2K | 97 | 146 |
| 864 | Ultrasonic Imaging | 28 | 1.2K | 61 | 25 |
| 864 | Tropical Medicine | 122 | 1.2K | 60 | 208 |
| 866 | Ultrasound | 32 | 1.2K | 132 | 94 |
| 867 | internet | 35 | 1.2K | 260 | 296 |
| 868 | speech therapy | 71 | 1.2K | 18 | 36 |
| 869 | Autism spectrum disorders | 7 | 1.2K | 12 | 3 |
| 870 | clay | 29 | 1.2K | 97 | 110 |
| 871 | bees | 37 | 1.2K | 35 | 46 |
| 872 | Recycling | 19 | 1.2K | 117 | 141 |
| 873 | clay minerals | 27 | 1.2K | 27 | 28 |
| 873 | cloning | 26 | 1.2K | 91 | 165 |
| 875 | Animal Biotechnology | 6 | 1.2K | 82 | 7 |
| 876 | livestock | 61 | 1.2K | 34 | 35 |
| 877 | sports injuries | 50 | 1.2K | 20 | 15 |
| 878 | Social welfare | 58 | 1.2K | 42 | 46 |
| 879 | hydrocolloids | 43 | 1.2K | 77 | 178 |
| 880 | Bipolar Disorder | 24 | 1.2K | 62 | 72 |
| 881 | Nonverbal Communication | 11 | 1.2K | 54 | 13 |
| 882 | polar regions | 51 | 1.1K | 36 | 54 |
| 883 | Feeding and Eating Disorders | 37 | 1.1K | 129 | 145 |
| 884 | school psychologists | 35 | 1.1K | 23 | 41 |
| 885 | Schizophrenia | 50 | 1.1K | 148 | 257 |
| 886 | Food Preservation | 50 | 1.1K | 38 | 30 |
| 887 | Familial diseases | 37 | 1.1K | 4 | 5 |
| 888 | Autoimmune diseases | 14 | 1.1K | 186 | 91 |
| 889 | Surface properties | 16 | 1.1K | 340 | 181 |
| 890 | nuclear magnetic resonance spectroscopy | 45 | 1.1K | 62 | 80 |
| 891 | Surface-Active Agents | 15 | 1.1K | 325 | 168 |
| 892 | Criminal Law | 20 | 1.1K | 35 | 24 |
| 892 | Personality Assessment | 39 | 1.1K | 59 | 129 |
| 894 | Cognitive Therapy | 29 | 1.1K | 96 | 77 |
| 895 | Juvenile delinquency | 56 | 1.1K | 15 | 25 |
| 896 | Biomass | 22 | 1.1K | 85 | 92 |
| 897 | Physical Geography | 53 | 1.1K | 14 | 38 |
| 898 | Solar Energy | 25 | 1.1K | 405 | 400 |
| 899 | Body language | 8 | 1.1K | 30 | 8 |
| 900 | Appetite | 21 | 1.1K | 149 | 120 |
| 901 | Zeolites | 38 | 1.1K | 100 | 168 |
| 902 | Advertising | 17 | 1.1K | 53 | 41 |
| 903 | Cellular senescence | 9 | 1.1K | 57 | 48 |
| 904 | History | 140 | 1.0K | 72 | 34 |
| 904 | Developed countries | 24 | 1.0K | 16 | 21 |
| 906 | Regional Economics | 39 | 1.0K | 18 | 30 |
| 907 | Random graphs | 31 | 1.0K | 22 | 16 |
| 908 | Electromagnetic compatibility | 31 | 1.0K | 44 | 35 |
| 909 | synthesis | 45 | 1.0K | 70 | 32 |
| 910 | Soil Mechanics | 39 | 1.0K | 231 | 276 |
| 911 | Energy Storage | 30 | 1.0K | 248 | 277 |
| 911 | mental health policy | 30 | 1.0K | 27 | 27 |
| 911 | concrete | 11 | 1.0K | 439 | 305 |
| 914 | Capital market | 9 | 1.0K | 158 | 38 |
| 915 | eye | 12 | 1.0K | 40 | 101 |
| 916 | Structural optimization | 14 | 1.0K | 101 | 56 |
| 917 | national security | 26 | 1.0K | 22 | 4 |
| 918 | Nanoelectronics | 35 | 1.0K | 112 | 50 |
| 919 | health services accessibility | 51 | 1.0K | 84 | 127 |
| 919 | Atomic spectroscopy | 43 | 1.0K | 159 | 179 |
| 921 | drug control | 35 | 1.0K | 41 | 43 |
| 922 | industrial relations | 52 | 1.0K | 96 | 107 |
| 923 | Architecture | 35 | 1.0K | 52 | 25 |
| 923 | blood transfusion | 48 | 1.0K | 75 | 83 |
| 923 | construction | 32 | 1.0K | 9 | 14 |
| 926 | Water quality management | 48 | 1.0K | 218 | 276 |
| 927 | Microwave devices | 45 | 1.0K | 52 | 66 |
| 928 | Sites | 32 | 1.0K | 85 | 128 |
| 929 | Informatics | 42 | 1.0K | 51 | 119 |
| 930 | family violence | 43 | 999 | 14 | 52 |
| 931 | Applied Linguistics | 33 | 995 | 65 | 51 |
| 932 | child mental health | 56 | 994 | 18 | 43 |
| 933 | Sonochemistry | 20 | 989 | 93 | 110 |
| 934 | Pancreatic diseases | 56 | 984 | 12 | 33 |
| 935 | Wetland conservation | 31 | 982 | 19 | 19 |
| 935 | Wetlands | 31 | 982 | 19 | 19 |
| 937 | drug abuse | 48 | 980 | 55 | 74 |
| 938 | Human biology | 41 | 977 | 55 | 58 |
| 939 | Consumer Protection | 40 | 975 | 3 | 16 |
| 940 | Second Language Acquisition | 11 | 974 | 34 | 28 |
| 941 | Social Networks | 25 | 967 | 27 | 47 |
| 942 | Hospitals | 113 | 963 | 21 | 55 |
| 943 | Leisure | 30 | 962 | 37 | 45 |
| 944 | Simulation | 1 | 956 | 3 | 1 |
| 944 | theoretical models | 1 | 956 | 3 | 1 |
| 946 | Structuralism | 23 | 955 | 20 | 43 |
| 946 | Biosensors | 24 | 955 | 322 | 445 |
| 948 | Urban Geography | 42 | 954 | 8 | 15 |
| 949 | Carbohydrate | 16 | 953 | 1 | 8 |
| 950 | Organometallic compounds | 30 | 952 | 308 | 277 |
| 951 | Fisheries Law | 24 | 951 | 17 | 20 |
| 951 | fisheries management | 24 | 951 | 17 | 20 |
| 953 | Lightweight concrete | 8 | 947 | 212 | 146 |
| 954 | Quantum theory | 26 | 945 | 256 | 171 |
| 954 | eugenics | 58 | 945 | 25 | 56 |
| 956 | freshwater biology | 23 | 943 | 179 | 163 |
| 957 | Autoimmunity | 15 | 939 | 243 | 191 |
| 958 | Bacteria | 23 | 937 | 45 | 83 |
| 958 | Cytokine | 24 | 937 | 28 | 71 |
| 960 | Precision medicine | 17 | 936 | 40 | 14 |
| 961 | Process Control | 18 | 932 | 257 | 315 |
| 962 | Nuclear Medicine | 26 | 926 | 236 | 217 |
| 963 | individual differences | 25 | 925 | 22 | 33 |
| 964 | design | 20 | 918 | 41 | 25 |
| 965 | Wildlife management | 37 | 912 | 79 | 64 |
| 966 | Physical organic chemistry | 46 | 911 | 168 | 243 |
| 967 | Suicide | 60 | 910 | 19 | 70 |
| 968 | forest policy | 35 | 909 | 39 | 37 |
| 969 | race relations | 27 | 908 | 91 | 64 |
| 970 | Industrial Design | 4 | 905 | 197 | 17 |
| 971 | Respiratory system | 45 | 902 | 37 | 101 |
| 972 | Retina | 9 | 897 | 52 | 106 |
| 973 | Comparative Advertising | 10 | 896 | 17 | 10 |
| 974 | intergroup relations | 22 | 892 | 15 | 27 |
| 975 | Humanities | 53 | 890 | 82 | 92 |
| 975 | Leadership | 22 | 890 | 64 | 151 |
| 977 | Plant Morphology | 30 | 887 | 58 | 54 |
| 977 | Topology | 46 | 887 | 13 | 12 |
| 979 | psychophysics | 54 | 883 | 7 | 27 |
| 980 | Agricultural Engineering | 34 | 882 | 42 | 55 |
| 981 | Ecosystem management | 33 | 875 | 71 | 135 |
| 981 | labor | 21 | 875 | 33 | 46 |
| 983 | Horticulture | 85 | 871 | 21 | 58 |
| 984 | microwave communication systems | 27 | 867 | 59 | 61 |
| 985 | Geodynamics | 45 | 863 | 147 | 297 |
| 986 | Catalysts | 17 | 861 | 151 | 94 |
| 987 | women | 62 | 860 | 24 | 40 |
| 988 | Chemical analysis | 38 | 859 | 108 | 194 |
| 989 | Cell communication | 18 | 856 | 85 | 87 |
| 990 | Pediatric Dermatology | 51 | 855 | 29 | 35 |
| 991 | Microeconomics | 22 | 852 | 62 | 63 |
| 992 | Hospitality industry | 21 | 849 | 43 | 29 |
| 993 | Mechanics | 30 | 848 | 275 | 203 |
| 993 | libraries | 74 | 848 | 10 | 43 |
| 995 | working class | 13 | 841 | 36 | 51 |
| 996 | Animal husbandry | 15 | 839 | 70 | 26 |
| 997 | Rock Mechanics | 21 | 834 | 278 | 260 |
| 997 | Multicultural Education | 25 | 834 | 28 | 23 |
| 999 | disease vectors | 30 | 828 | 147 | 168 |
| 1000 | Knowledge | 49 | 827 | 36 | 54 |