| 1 | Science | 1,827 | 277.3K | 182 | 97 |
| 2 | Ecology | 2,870 | 246.0K | 14 | 7 |
| 3 | Biology | 1,284 | 218.9K | 277 | 135 |
| 4 | Microbiology | 2,047 | 185.2K | 37 | 23 |
| 5 | Physics | 655 | 157.7K | 706 | 219 |
| 6 | Environment | 1,408 | 133.5K | 13 | 8 |
| 7 | Pollution | 1,478 | 130.6K | 18 | 10 |
| 8 | Natural history | 197 | 124.3K | 322 | 111 |
| 9 | Botany | 1,427 | 116.3K | 22 | 8 |
| 10 | Molecular Biology | 1,183 | 104.8K | 208 | 152 |
| 11 | Biotechnology | 1,372 | 104.5K | 31 | 18 |
| 12 | Medicine | 1,393 | 87.5K | 268 | 206 |
| 13 | Biochemistry | 1,281 | 75.6K | 343 | 222 |
| 14 | Environmental Health | 848 | 75.5K | 59 | 25 |
| 15 | Nutrition | 1,298 | 67.1K | 10 | 10 |
| 16 | Research | 1,142 | 62.6K | 208 | 125 |
| 17 | Chemistry | 784 | 61.6K | 546 | 368 |
| 18 | Microbial Ecology | 656 | 60.8K | 11 | 9 |
| 19 | Environmental Policy | 708 | 59.9K | 4 | 3 |
| 20 | Genetics | 855 | 59.8K | 55 | 86 |
| 21 | Colloids | 1,039 | 56.3K | 13 | 7 |
| 22 | Plants | 534 | 54.9K | 13 | 8 |
| 23 | environmental pollution | 863 | 50.5K | 22 | 16 |
| 24 | Environmental Engineering | 489 | 49.4K | 59 | 20 |
| 25 | Plant cells | 437 | 49.0K | 12 | 14 |
| 26 | Bioengineering | 438 | 46.8K | 104 | 55 |
| 27 | plant molecular biology | 453 | 44.6K | 16 | 15 |
| 28 | Biochemical Engineering | 302 | 44.1K | 100 | 32 |
| 29 | Food | 988 | 43.5K | 4 | 1 |
| 30 | Biodiversity conservation | 345 | 42.2K | 10 | 6 |
| 31 | Soil Science | 608 | 39.9K | 9 | 5 |
| 32 | Water | 565 | 38.4K | 13 | 14 |
| 33 | sanitation | 289 | 37.2K | 33 | 20 |
| 34 | Surface Chemistry | 580 | 37.2K | 54 | 14 |
| 35 | Climate change | 221 | 37.0K | 6 | 5 |
| 36 | Eutrophication | 219 | 36.9K | 6 | 5 |
| 37 | soil microbiology | 498 | 36.2K | 8 | 7 |
| 38 | Diet | 592 | 35.8K | 13 | 18 |
| 39 | Toxicology | 696 | 35.6K | 60 | 35 |
| 40 | Water pollution | 558 | 35.6K | 17 | 15 |
| 41 | Cell Biology | 268 | 35.3K | 362 | 245 |
| 42 | Plant diseases | 721 | 35.2K | 14 | 8 |
| 43 | Evolution | 358 | 34.8K | 20 | 12 |
| 44 | Plant Ecology | 427 | 33.2K | 9 | 5 |
| 45 | Technology | 556 | 31.7K | 59 | 17 |
| 46 | Agriculture | 662 | 31.1K | 20 | 5 |
| 47 | Earth Sciences | 251 | 30.8K | 125 | 33 |
| 48 | Virology | 367 | 30.3K | 149 | 189 |
| 49 | Agricultural systems | 443 | 29.2K | 1 | 1 |
| 50 | Plant physiology | 396 | 28.8K | 24 | 20 |
| 51 | biological evolution | 199 | 28.6K | 98 | 40 |
| 52 | food technology | 613 | 28.5K | 10 | 7 |
| 53 | Biomass Energy | 326 | 26.8K | 30 | 14 |
| 54 | Sustainable Development | 395 | 25.5K | 3 | 1 |
| 55 | global environmental change | 397 | 25.2K | 1 | 1 |
| 56 | Environmental Management | 451 | 25.1K | 9 | 6 |
| 57 | Industrial Microbiology | 354 | 24.7K | 10 | 5 |
| 58 | Environmental Chemistry | 312 | 23.6K | 10 | 19 |
| 59 | Food Microbiology | 351 | 22.3K | 5 | 3 |
| 60 | Entomology | 425 | 22.2K | 53 | 15 |
| 61 | Hydrology | 447 | 22.1K | 29 | 18 |
| 62 | Meteorology | 334 | 21.7K | 122 | 96 |
| 63 | Genomics | 433 | 20.5K | 42 | 39 |
| 64 | Bacteriology | 251 | 20.5K | 67 | 69 |
| 65 | Soil biology | 256 | 20.1K | 10 | 11 |
| 66 | Agricultural Chemistry | 367 | 19.9K | 52 | 20 |
| 67 | Environmental monitoring | 361 | 19.9K | 52 | 42 |
| 68 | Agricultural Ecology | 242 | 19.7K | 8 | 6 |
| 69 | Food additives | 448 | 19.3K | 2 | 3 |
| 70 | Cytology | 161 | 19.0K | 626 | 449 |
| 71 | Public Health | 434 | 18.4K | 258 | 243 |
| 72 | plant communities | 265 | 17.8K | 10 | 7 |
| 73 | nucleic acids | 66 | 17.4K | 317 | 103 |
| 74 | Geophysics | 302 | 17.3K | 368 | 265 |
| 75 | Aquaculture | 437 | 17.2K | 13 | 10 |
| 76 | Chemical Engineering | 263 | 17.2K | 380 | 226 |
| 77 | environmental protection | 280 | 16.9K | 46 | 25 |
| 78 | Breeding | 277 | 16.5K | 25 | 13 |
| 79 | Animal genetics | 492 | 16.1K | 1 | 1 |
| 80 | hydrocolloids | 349 | 15.7K | 2 | 6 |
| 81 | Physiology | 398 | 15.4K | 199 | 224 |
| 82 | Human genetics | 57 | 15.4K | 616 | 460 |
| 83 | Data Mining | 39 | 15.3K | 193 | 17 |
| 84 | Food preferences | 233 | 15.2K | 1 | 1 |
| 85 | data collection | 37 | 15.2K | 82 | 11 |
| 86 | Biophysics | 357 | 14.7K | 475 | 347 |
| 87 | Land use | 312 | 14.6K | 2 | 2 |
| 88 | Biodiversity | 244 | 14.4K | 25 | 26 |
| 89 | Environmental Microbiology | 172 | 14.4K | 13 | 10 |
| 90 | Genetic engineering | 194 | 14.3K | 45 | 19 |
| 91 | Medical Laboratory Science | 225 | 14.0K | 25 | 11 |
| 92 | Nanotechnology | 277 | 13.9K | 442 | 443 |
| 93 | Economic Development | 205 | 13.7K | 29 | 22 |
| 94 | gene mapping | 250 | 13.6K | 36 | 70 |
| 95 | Environmental pollutants | 253 | 13.6K | 22 | 10 |
| 96 | Biomedical Engineering | 226 | 13.4K | 290 | 138 |
| 97 | Animal Behavior | 300 | 13.3K | 59 | 78 |
| 98 | Developing countries | 312 | 13.1K | 25 | 22 |
| 99 | Polymers | 343 | 12.9K | 330 | 285 |
| 100 | ecosystem | 143 | 12.6K | 19 | 13 |
| 101 | Microorganisms | 118 | 12.4K | 49 | 23 |
| 102 | pollutants | 227 | 12.0K | 16 | 11 |
| 103 | Ethology | 258 | 11.8K | 42 | 62 |
| 104 | Analytical Chemistry | 228 | 11.8K | 370 | 223 |
| 105 | Economic History | 301 | 11.8K | 93 | 40 |
| 106 | Chromosome mapping | 230 | 11.7K | 27 | 36 |
| 107 | feeding behavior | 293 | 11.7K | 1 | 3 |
| 108 | Appetite | 291 | 11.6K | 1 | 1 |
| 109 | Biogeochemistry | 149 | 11.4K | 34 | 31 |
| 110 | Sustainable agriculture | 242 | 11.1K | 5 | 4 |
| 111 | Marine Biology | 254 | 11.1K | 115 | 106 |
| 112 | Atmospheric Physics | 193 | 10.9K | 144 | 128 |
| 113 | Water quality management | 306 | 10.9K | 6 | 6 |
| 114 | Materials Science | 53 | 10.8K | 1447 | 387 |
| 115 | Metabolism | 203 | 10.8K | 238 | 281 |
| 116 | Immunology | 138 | 10.5K | 648 | 517 |
| 117 | Obesity | 115 | 10.2K | 215 | 88 |
| 118 | United States | 158 | 10.1K | 562 | 292 |
| 119 | Soil ecology | 155 | 10.0K | 9 | 5 |
| 120 | Geomorphology | 212 | 9.8K | 13 | 19 |
| 121 | Materials | 74 | 9.6K | 1696 | 721 |
| 122 | Epidemiology | 242 | 9.5K | 257 | 249 |
| 123 | Climatology | 163 | 9.4K | 142 | 139 |
| 124 | Animal breeding | 294 | 9.2K | 4 | 5 |
| 125 | Insects | 95 | 9.2K | 102 | 15 |
| 126 | world | 164 | 9.1K | 10 | 11 |
| 127 | Geography | 240 | 9.1K | 95 | 68 |
| 128 | Animal Nutrition | 331 | 9.0K | 1 | 1 |
| 129 | Forest Ecology | 169 | 8.9K | 36 | 33 |
| 130 | Microbial Genetics | 91 | 8.9K | 8 | 3 |
| 130 | phytopathogenic bacteria | 91 | 8.9K | 4 | 3 |
| 132 | Chemical Ecology | 130 | 8.9K | 11 | 3 |
| 133 | Forest Management | 164 | 8.7K | 38 | 34 |
| 134 | Mycology | 154 | 8.7K | 69 | 38 |
| 135 | Virulence | 71 | 8.6K | 117 | 64 |
| 136 | Molecular Genetics | 146 | 8.6K | 112 | 103 |
| 137 | Medical Microbiology | 102 | 8.5K | 266 | 178 |
| 138 | Waste management | 218 | 8.4K | 9 | 5 |
| 139 | Agronomy | 97 | 8.2K | 42 | 17 |
| 140 | Atmospheric Chemistry | 136 | 8.2K | 108 | 125 |
| 141 | water supply | 141 | 8.2K | 44 | 45 |
| 142 | pheromones | 115 | 8.2K | 12 | 3 |
| 143 | Behavior | 130 | 8.1K | 354 | 278 |
| 144 | marketing | 48 | 8.0K | 355 | 114 |
| 145 | Environmental Toxicology | 146 | 8.0K | 92 | 91 |
| 146 | Regional Planning | 214 | 8.0K | 22 | 21 |
| 147 | Fungi | 135 | 8.0K | 30 | 25 |
| 148 | environmental indicators | 120 | 7.8K | 14 | 5 |
| 149 | Water Purification | 205 | 7.8K | 8 | 5 |
| 150 | human behavior | 129 | 7.7K | 192 | 212 |
| 151 | Wildlife conservation | 123 | 7.5K | 42 | 44 |
| 152 | Biogeography | 88 | 7.4K | 38 | 27 |
| 153 | atmospheric models | 89 | 7.3K | 60 | 52 |
| 154 | Psychophysiology | 124 | 7.3K | 422 | 331 |
| 155 | Remote Sensing | 125 | 7.2K | 57 | 4 |
| 156 | Landscape Ecology | 87 | 7.0K | 9 | 5 |
| 157 | Developmental Biology | 79 | 7.0K | 372 | 291 |
| 158 | genome | 73 | 7.0K | 181 | 197 |
| 159 | Parasitic Diseases | 111 | 7.0K | 141 | 83 |
| 160 | Immunity | 64 | 6.8K | 403 | 406 |
| 161 | viruses | 101 | 6.8K | 190 | 185 |
| 162 | Development | 157 | 6.8K | 14 | 21 |
| 163 | sustainability | 82 | 6.8K | 9 | 14 |
| 164 | Metabolic diseases | 74 | 6.8K | 515 | 360 |
| 165 | Europe | 334 | 6.7K | 94 | 115 |
| 166 | animals | 221 | 6.7K | 10 | 1 |
| 167 | United Kingdom | 120 | 6.6K | 107 | 91 |
| 168 | soil management | 150 | 6.5K | 7 | 8 |
| 169 | Host-parasite interactions | 71 | 6.5K | 135 | 129 |
| 170 | Quality Control | 160 | 6.5K | 25 | 21 |
| 171 | Endocrinology | 96 | 6.5K | 596 | 512 |
| 172 | Geochemistry | 87 | 6.4K | 366 | 237 |
| 173 | food handling | 153 | 6.4K | 7 | 5 |
| 174 | Sociology | 114 | 6.3K | 323 | 207 |
| 175 | Pharmacology | 105 | 6.3K | 1137 | 718 |
| 176 | Green Chemistry | 93 | 6.2K | 136 | 109 |
| 177 | Ecosystem management | 122 | 6.2K | 9 | 14 |
| 178 | Fisheries | 188 | 6.2K | 75 | 56 |
| 179 | Neurophysiology | 113 | 6.2K | 488 | 508 |
| 180 | Computational Biology | 129 | 6.1K | 206 | 283 |
| 181 | environmental issues | 119 | 6.1K | 6 | 1 |
| 182 | Diabetes | 53 | 6.1K | 556 | 343 |
| 183 | polymerization | 147 | 6.0K | 560 | 435 |
| 184 | Membranes | 93 | 5.9K | 191 | 138 |
| 185 | Conservation Biology | 75 | 5.9K | 80 | 53 |
| 186 | soil conservation | 136 | 5.8K | 8 | 6 |
| 187 | Rural Development | 117 | 5.8K | 1 | 2 |
| 188 | Animal Physiology | 185 | 5.8K | 1 | 1 |
| 188 | Natural selection | 185 | 5.8K | 1 | 1 |
| 188 | genetic selection | 185 | 5.8K | 1 | 1 |
| 191 | Molecular ecology | 107 | 5.8K | 59 | 99 |
| 192 | Diabetes mellitus | 48 | 5.8K | 545 | 336 |
| 193 | Oceanography | 176 | 5.7K | 166 | 212 |
| 194 | infection | 41 | 5.7K | 373 | 85 |
| 195 | Parasitology | 116 | 5.6K | 211 | 111 |
| 196 | Agricultural Engineering | 187 | 5.4K | 2 | 3 |
| 197 | enzymes | 154 | 5.4K | 32 | 41 |
| 198 | Plant genetic engineering | 122 | 5.3K | 30 | 38 |
| 199 | Economic Assistance | 112 | 5.3K | 14 | 23 |
| 200 | Biogeochemical cycles | 42 | 5.2K | 52 | 35 |
| 201 | Infections | 31 | 5.2K | 273 | 76 |
| 202 | Environmental Geology | 106 | 5.2K | 39 | 23 |
| 203 | Population Genetics | 96 | 5.0K | 94 | 120 |
| 204 | Developmental Immunology | 93 | 5.0K | 12 | 7 |
| 205 | biopolymers | 149 | 4.9K | 23 | 33 |
| 206 | Energy Conversion | 13 | 4.9K | 625 | 196 |
| 207 | city planning | 149 | 4.9K | 58 | 56 |
| 208 | Embryology | 55 | 4.9K | 349 | 259 |
| 209 | land degradation | 103 | 4.8K | 3 | 3 |
| 209 | degradation | 103 | 4.8K | 3 | 3 |
| 211 | Fertilizers | 121 | 4.8K | 12 | 6 |
| 212 | Cell differentiation | 43 | 4.8K | 468 | 363 |
| 213 | food contamination | 143 | 4.8K | 17 | 4 |
| 214 | Soft Condensed Matter | 152 | 4.8K | 26 | 36 |
| 215 | Malaria | 93 | 4.7K | 48 | 27 |
| 216 | Molecular Microbiology | 38 | 4.7K | 180 | 112 |
| 217 | Energy Policy | 73 | 4.7K | 303 | 246 |
| 218 | Planets | 72 | 4.7K | 396 | 306 |
| 219 | Lipids | 87 | 4.7K | 75 | 72 |
| 220 | Zoology | 145 | 4.6K | 205 | 169 |
| 221 | Transgenic plants | 97 | 4.6K | 7 | 7 |
| 222 | Human Geography | 126 | 4.6K | 55 | 54 |
| 223 | Food Policy | 90 | 4.5K | 8 | 10 |
| 224 | disease vectors | 101 | 4.5K | 26 | 17 |
| 225 | Plant breeding | 101 | 4.5K | 40 | 16 |
| 226 | energy resources | 60 | 4.5K | 116 | 114 |
| 227 | Anatomy | 49 | 4.4K | 435 | 252 |
| 228 | agricultural policy | 79 | 4.3K | 6 | 6 |
| 229 | Electrochemistry | 106 | 4.3K | 744 | 478 |
| 230 | Parenteral nutrition | 86 | 4.3K | 57 | 98 |
| 231 | Serology | 46 | 4.3K | 30 | 3 |
| 232 | Parasites | 87 | 4.3K | 111 | 62 |
| 233 | Economics | 150 | 4.2K | 560 | 463 |
| 234 | Psychology | 61 | 4.2K | 1174 | 696 |
| 235 | environmental exposure | 89 | 4.2K | 109 | 71 |
| 236 | Growth | 37 | 4.2K | 319 | 249 |
| 237 | Cell metabolism | 15 | 4.1K | 238 | 131 |
| 238 | Homeostasis | 14 | 4.1K | 191 | 128 |
| 239 | Catalysis | 132 | 4.1K | 592 | 770 |
| 240 | Biocompatible Materials | 64 | 4.1K | 950 | 785 |
| 241 | Enteral nutrition | 77 | 4.1K | 35 | 82 |
| 242 | Food Security | 94 | 4.0K | 1 | 2 |
| 243 | tillage | 103 | 4.0K | 10 | 15 |
| 244 | Bioinformatics | 79 | 3.9K | 237 | 325 |
| 245 | Cancer | 87 | 3.9K | 831 | 859 |
| 246 | Geology | 128 | 3.9K | 476 | 461 |
| 247 | Reproduction | 139 | 3.9K | 204 | 255 |
| 248 | forest policy | 111 | 3.9K | 14 | 8 |
| 249 | Neurology | 42 | 3.9K | 2133 | 1476 |
| 250 | Medical Anthropology | 49 | 3.8K | 203 | 147 |
| 251 | Aging | 95 | 3.8K | 450 | 366 |
| 251 | Meteorites | 35 | 3.8K | 319 | 196 |
| 253 | Plant Biotechnology | 86 | 3.8K | 33 | 31 |
| 254 | freshwater biology | 53 | 3.8K | 67 | 40 |
| 255 | Vaccines | 101 | 3.7K | 171 | 155 |
| 256 | Environmental Law | 58 | 3.7K | 95 | 107 |
| 257 | Molecular evolution | 58 | 3.7K | 230 | 202 |
| 258 | Tourism | 75 | 3.5K | 148 | 147 |
| 259 | Enzyme | 73 | 3.5K | 9 | 4 |
| 260 | Animal ecology | 117 | 3.4K | 62 | 125 |
| 261 | energy conservation | 38 | 3.3K | 333 | 196 |
| 262 | Surface-Active Agents | 39 | 3.3K | 98 | 30 |
| 262 | Surface properties | 39 | 3.3K | 106 | 34 |
| 264 | Sustainable Engineering | 63 | 3.2K | 156 | 134 |
| 265 | Social Change | 35 | 3.2K | 86 | 33 |
| 266 | Biomass | 49 | 3.2K | 25 | 23 |
| 267 | Fishery resources | 107 | 3.2K | 8 | 17 |
| 268 | Natural resources | 78 | 3.1K | 24 | 33 |
| 269 | Marine Pollution | 50 | 3.0K | 112 | 75 |
| 270 | Fishery management | 115 | 3.0K | 39 | 28 |
| 271 | Pharmacognosy | 39 | 3.0K | 392 | 174 |
| 272 | Histology | 60 | 3.0K | 301 | 247 |
| 273 | Social Sciences | 95 | 3.0K | 442 | 262 |
| 274 | biofuels | 49 | 3.0K | 14 | 16 |
| 275 | Hypertension | 22 | 3.0K | 745 | 446 |
| 276 | Oncology | 15 | 2.9K | 1228 | 765 |
| 277 | Health promotion | 89 | 2.9K | 148 | 180 |
| 278 | China | 91 | 2.9K | 331 | 207 |
| 279 | Bioremediation | 41 | 2.8K | 35 | 10 |
| 280 | Hydrometeorology | 33 | 2.8K | 26 | 28 |
| 281 | Production Management | 31 | 2.8K | 245 | 157 |
| 282 | Environmentalism | 26 | 2.8K | 3 | 1 |
| 283 | Process Control | 35 | 2.8K | 95 | 66 |
| 284 | Transport | 93 | 2.8K | 10 | 25 |
| 285 | Sea | 90 | 2.7K | 8 | 18 |
| 286 | Geriatrics | 65 | 2.7K | 638 | 475 |
| 287 | management | 61 | 2.7K | 691 | 673 |
| 288 | Horticulture | 81 | 2.7K | 40 | 16 |
| 289 | Liver diseases | 15 | 2.6K | 851 | 475 |
| 290 | Climate | 40 | 2.5K | 37 | 34 |
| 291 | Molecular structure | 25 | 2.5K | 852 | 378 |
| 292 | herbicides | 50 | 2.5K | 18 | 7 |
| 293 | Hazardous waste | 42 | 2.5K | 51 | 41 |
| 294 | Nutrition physiology | 73 | 2.5K | 25 | 41 |
| 295 | proteins | 70 | 2.5K | 303 | 317 |
| 296 | Education | 69 | 2.5K | 733 | 442 |
| 297 | radioactive waste | 38 | 2.5K | 44 | 39 |
| 297 | industrial waste | 38 | 2.5K | 49 | 39 |
| 299 | economic policy | 83 | 2.4K | 260 | 164 |
| 300 | bees | 50 | 2.4K | 23 | 21 |
| 301 | Bioenergetics | 59 | 2.3K | 84 | 88 |
| 302 | Statistical physics | 79 | 2.3K | 912 | 817 |
| 303 | Nonlinear Dynamics | 67 | 2.3K | 485 | 408 |
| 304 | nanoscience | 34 | 2.3K | 952 | 761 |
| 304 | Aquatic ecology | 63 | 2.3K | 51 | 32 |
| 306 | Risk Management | 54 | 2.3K | 28 | 30 |
| 307 | Agricultural Education | 93 | 2.3K | 4 | 2 |
| 308 | Renewable Energy Sources | 40 | 2.2K | 488 | 663 |
| 309 | Environmental risk assessment | 57 | 2.2K | 5 | 10 |
| 310 | Public Administration | 50 | 2.2K | 239 | 131 |
| 311 | Plant Genetics | 43 | 2.2K | 80 | 111 |
| 312 | Recycling | 51 | 2.2K | 24 | 56 |
| 313 | Humanities | 19 | 2.2K | 551 | 20 |
| 314 | Educational Technology | 39 | 2.2K | 218 | 88 |
| 315 | Nutrigenomics | 41 | 2.2K | 1 | 1 |
| 316 | Microbial Biotechnology | 49 | 2.2K | 39 | 28 |
| 317 | Business | 20 | 2.1K | 862 | 459 |
| 318 | Probability | 45 | 2.1K | 45 | 38 |
| 319 | Physical Chemistry | 56 | 2.1K | 454 | 476 |
| 320 | Risk | 46 | 2.1K | 35 | 39 |
| 321 | Financial management | 44 | 2.1K | 27 | 35 |
| 322 | bioclimatology | 46 | 2.1K | 47 | 41 |
| 323 | environmental control | 50 | 2.0K | 6 | 10 |
| 324 | natural products | 33 | 2.0K | 417 | 172 |
| 325 | Rheology | 42 | 2.0K | 72 | 46 |
| 326 | Environmental Economics | 40 | 2.0K | 8 | 24 |
| 327 | miniaturization | 35 | 2.0K | 481 | 530 |
| 328 | toxicity testing | 29 | 2.0K | 99 | 50 |
| 329 | Perception | 29 | 2.0K | 712 | 396 |
| 330 | Mass Spectrometry | 48 | 2.0K | 187 | 161 |
| 331 | Medical genetics | 30 | 1.9K | 1306 | 1193 |
| 332 | Medicinal plants | 23 | 1.9K | 403 | 192 |
| 333 | Invertebrates | 47 | 1.9K | 48 | 28 |
| 334 | gastrointestinal tract | 33 | 1.9K | 8 | 17 |
| 335 | Long-Term Care | 23 | 1.9K | 123 | 91 |
| 335 | Long-term care facilities | 23 | 1.9K | 123 | 91 |
| 337 | Agricultural Science | 23 | 1.9K | 51 | 49 |
| 338 | Health Policy | 40 | 1.9K | 576 | 386 |
| 339 | Product life cycle | 24 | 1.8K | 31 | 29 |
| 339 | green products | 24 | 1.8K | 29 | 29 |
| 341 | Psychiatry | 19 | 1.8K | 2375 | 1443 |
| 342 | Pediatrics | 17 | 1.8K | 1455 | 806 |
| 342 | Systems Biology | 64 | 1.8K | 135 | 158 |
| 342 | Soil fertility | 36 | 1.8K | 25 | 35 |
| 345 | Cardiovascular diseases | 55 | 1.8K | 324 | 273 |
| 346 | Lipid metabolism | 22 | 1.8K | 51 | 26 |
| 346 | Lipid | 22 | 1.8K | 52 | 26 |
| 348 | Anthropology | 49 | 1.8K | 332 | 188 |
| 349 | disease outbreaks | 22 | 1.8K | 127 | 67 |
| 349 | Epidemics | 22 | 1.8K | 124 | 66 |
| 351 | Proteome | 45 | 1.8K | 182 | 248 |
| 352 | Technological Innovations | 47 | 1.8K | 49 | 36 |
| 353 | Nanostructures | 13 | 1.7K | 1172 | 459 |
| 354 | Hemodynamics | 8 | 1.7K | 445 | 149 |
| 355 | DNA polymerases | 15 | 1.7K | 159 | 181 |
| 356 | Chemical industry | 50 | 1.7K | 190 | 71 |
| 357 | Pharmacy | 34 | 1.7K | 634 | 377 |
| 358 | cytokines | 10 | 1.7K | 750 | 147 |
| 359 | Social Psychology | 27 | 1.7K | 709 | 523 |
| 360 | Gastrointestinal diseases | 5 | 1.7K | 684 | 19 |
| 361 | Tropical Medicine | 40 | 1.7K | 349 | 193 |
| 362 | Mathematics | 50 | 1.7K | 2117 | 1152 |
| 363 | dietary supplements | 42 | 1.6K | 33 | 40 |
| 364 | Immunotherapy | 8 | 1.6K | 1466 | 580 |
| 365 | Extreme environments | 22 | 1.6K | 19 | 7 |
| 366 | Visual Perception | 24 | 1.6K | 717 | 383 |
| 366 | Memory | 24 | 1.6K | 800 | 484 |
| 366 | Attention | 24 | 1.6K | 739 | 391 |
| 369 | biological factors | 32 | 1.6K | 436 | 297 |
| 370 | Ecological Engineering | 38 | 1.6K | 35 | 45 |
| 371 | Radiation | 37 | 1.6K | 526 | 302 |
| 372 | ethnobiology | 35 | 1.6K | 11 | 15 |
| 373 | Cosmochemistry | 29 | 1.6K | 174 | 123 |
| 374 | Pharmaceutical Chemistry | 39 | 1.6K | 1358 | 1221 |
| 374 | Consumer education | 27 | 1.6K | 20 | 11 |
| 376 | Plant tissue culture | 57 | 1.6K | 43 | 57 |
| 377 | industrial hygiene | 43 | 1.6K | 136 | 58 |
| 378 | Artificial Intelligence | 33 | 1.6K | 1255 | 794 |
| 379 | Coastal zone management | 60 | 1.6K | 17 | 25 |
| 380 | Drug design | 19 | 1.5K | 605 | 264 |
| 381 | Population | 36 | 1.5K | 178 | 109 |
| 382 | Cytogenetics | 34 | 1.5K | 436 | 603 |
| 382 | occupational diseases | 25 | 1.5K | 230 | 127 |
| 384 | Spectrum analysis | 35 | 1.5K | 1749 | 1441 |
| 385 | Microbial Metabolism | 29 | 1.5K | 5 | 5 |
| 386 | Energy metabolism | 44 | 1.5K | 102 | 137 |
| 386 | Food texture | 28 | 1.5K | 10 | 5 |
| 388 | Radiation effects | 41 | 1.5K | 28 | 49 |
| 389 | Gerontology | 36 | 1.5K | 540 | 330 |
| 390 | Genes | 58 | 1.5K | 94 | 124 |
| 391 | Electrochemical Analysis | 48 | 1.5K | 225 | 220 |
| 392 | transgenic organisms | 33 | 1.4K | 8 | 11 |
| 393 | Africa | 81 | 1.4K | 120 | 91 |
| 394 | Occupational Health | 30 | 1.4K | 262 | 118 |
| 395 | Hydraulic Engineering | 26 | 1.4K | 248 | 119 |
| 396 | Robotics | 15 | 1.4K | 765 | 249 |
| 397 | Japan | 51 | 1.4K | 385 | 208 |
| 398 | Ethnobotany | 30 | 1.4K | 14 | 19 |
| 399 | Traditional medicine | 29 | 1.4K | 21 | 20 |
| 399 | Phytotherapy | 29 | 1.4K | 112 | 56 |
| 399 | Ethnomedicine | 29 | 1.4K | 10 | 19 |
| 402 | Plant cell culture | 31 | 1.4K | 82 | 67 |
| 403 | Higher Education | 18 | 1.4K | 144 | 22 |
| 404 | Hydrodynamics | 23 | 1.4K | 132 | 78 |
| 404 | transgenic animals | 30 | 1.4K | 8 | 10 |
| 406 | Engineering | 37 | 1.4K | 1288 | 682 |
| 407 | natural disasters | 33 | 1.4K | 179 | 153 |
| 408 | Cardiovascular system | 8 | 1.4K | 1336 | 804 |
| 409 | Immunopharmacology | 4 | 1.4K | 1082 | 102 |
| 410 | Pharmacogenetics | 16 | 1.4K | 450 | 245 |
| 411 | free radicals | 15 | 1.4K | 742 | 473 |
| 412 | Nanostructured Materials | 42 | 1.3K | 1023 | 1057 |
| 413 | Operations Research | 46 | 1.3K | 500 | 510 |
| 414 | drug toxicity | 17 | 1.3K | 56 | 12 |
| 415 | Urban Policy | 41 | 1.3K | 58 | 69 |
| 416 | mammals | 38 | 1.3K | 179 | 111 |
| 417 | Magnetic Resonance Spectroscopy | 37 | 1.3K | 289 | 219 |
| 418 | Hormones | 25 | 1.3K | 446 | 351 |
| 419 | Computer Science | 3 | 1.3K | 2708 | 165 |
| 420 | cell membrane | 41 | 1.3K | 106 | 134 |
| 421 | Microscopy | 21 | 1.3K | 541 | 210 |
| 422 | Marine resources | 47 | 1.2K | 37 | 45 |
| 423 | Marine Biotechnology | 18 | 1.2K | 24 | 8 |
| 424 | Combinatorial chemistry | 20 | 1.2K | 220 | 198 |
| 425 | Environmental Education | 21 | 1.2K | 53 | 21 |
| 426 | Brain | 23 | 1.2K | 1271 | 1067 |
| 427 | Ethnology | 39 | 1.2K | 262 | 120 |
| 428 | Hematology | 12 | 1.2K | 2516 | 1361 |
| 429 | irrigation | 73 | 1.2K | 14 | 23 |
| 429 | Chromosomes | 18 | 1.2K | 350 | 220 |
| 431 | Urban Areas | 6 | 1.2K | 126 | 7 |
| 432 | animal diseases | 39 | 1.2K | 63 | 52 |
| 433 | Birds | 58 | 1.1K | 198 | 194 |
| 434 | Regional Economics | 38 | 1.1K | 18 | 25 |
| 435 | Restoration Ecology | 31 | 1.1K | 38 | 48 |
| 436 | Mycotoxins | 40 | 1.1K | 4 | 6 |
| 437 | Veterinary Immunology | 36 | 1.1K | 59 | 51 |
| 438 | Surgery | 7 | 1.1K | 1919 | 1127 |
| 439 | Vocational Education | 24 | 1.1K | 119 | 40 |
| 440 | Forest genetics | 28 | 1.1K | 30 | 14 |
| 441 | Instructional systems | 12 | 1.1K | 21 | 4 |
| 442 | Geodesy | 26 | 1.1K | 120 | 70 |
| 443 | Acarology | 37 | 1.1K | 15 | 15 |
| 443 | Mites | 37 | 1.1K | 45 | 19 |
| 443 | Ticks | 37 | 1.1K | 20 | 15 |
| 443 | Acari | 37 | 1.1K | 15 | 15 |
| 447 | Entrepreneurship | 15 | 1.1K | 349 | 343 |
| 448 | Bacteria | 12 | 1.1K | 127 | 100 |
| 448 | air | 9 | 1.1K | 91 | 56 |
| 450 | soil pollution | 35 | 1.1K | 30 | 26 |
| 450 | weather | 26 | 1.1K | 52 | 51 |
| 452 | Peroxisomes | 4 | 1.1K | 39 | 1 |
| 453 | Proteomics | 23 | 1.1K | 288 | 316 |
| 454 | protein | 28 | 1.0K | 349 | 353 |
| 455 | plant viruses | 27 | 1.0K | 27 | 23 |
| 456 | Chemical structure | 1 | 1.0K | 1190 | 15 |
| 457 | disaster relief | 19 | 1.0K | 20 | 11 |
| 458 | Adolescent Medicine | 3 | 1.0K | 797 | 313 |
| 459 | emergency management | 26 | 1.0K | 98 | 78 |
| 459 | Wildlife management | 46 | 1.0K | 92 | 85 |
| 461 | Health | 20 | 1.0K | 958 | 630 |
| 462 | Organic Chemistry | 37 | 1.0K | 1171 | 1165 |
| 463 | Bioorganic chemistry | 23 | 1.0K | 1236 | 1024 |
| 464 | Immunochemistry | 20 | 1.0K | 305 | 155 |
| 465 | Astrophysics | 17 | 1.0K | 2020 | 1593 |
| 465 | Fermentation | 22 | 1.0K | 63 | 24 |
| 467 | Educational Psychology | 8 | 1.0K | 940 | 400 |
| 468 | community development | 20 | 999 | 119 | 43 |
| 469 | Biological Systems | 13 | 998 | 207 | 58 |
| 470 | nuclear magnetic resonance | 29 | 994 | 343 | 272 |
| 471 | Australia | 34 | 992 | 441 | 300 |
| 472 | biological invasions | 25 | 987 | 83 | 82 |
| 473 | Phylogeny | 24 | 979 | 225 | 257 |
| 474 | Bacterial infections | 11 | 969 | 446 | 389 |
| 475 | food consumption | 9 | 967 | 17 | 2 |
| 476 | Critical Care | 18 | 964 | 830 | 920 |
| 476 | Critical Care Medicine | 18 | 964 | 810 | 910 |
| 478 | cell physiology | 22 | 962 | 592 | 737 |
| 479 | risk factors | 28 | 960 | 150 | 165 |
| 480 | Diagnostic microbiology | 13 | 949 | 751 | 750 |
| 480 | land tenure | 29 | 949 | 2 | 4 |
| 480 | Land reform | 29 | 949 | 2 | 4 |
| 483 | Functional Genomics | 14 | 944 | 82 | 58 |
| 484 | Respiration | 4 | 933 | 1712 | 558 |
| 485 | Neuropsychology | 21 | 930 | 1033 | 834 |
| 486 | Mental Disorders | 13 | 929 | 1970 | 1429 |
| 487 | drainage | 64 | 926 | 14 | 15 |
| 488 | Peasants | 22 | 923 | 9 | 7 |
| 489 | Housing | 18 | 921 | 101 | 61 |
| 490 | technical education | 23 | 920 | 80 | 29 |
| 491 | Analytical Biochemistry | 26 | 915 | 468 | 473 |
| 492 | Political Science | 28 | 906 | 607 | 389 |
| 493 | Urban Planning | 17 | 902 | 87 | 50 |
| 494 | preventive medicine | 13 | 900 | 717 | 463 |
| 495 | Nanoparticles | 17 | 898 | 813 | 594 |
| 496 | Electrophoresis | 23 | 896 | 538 | 403 |
| 497 | Clinical Chemistry | 25 | 882 | 1258 | 1273 |
| 497 | livestock | 43 | 882 | 62 | 47 |
| 499 | Physical fitness | 22 | 869 | 304 | 272 |
| 500 | Pesticides | 33 | 864 | 79 | 67 |
| 501 | mycoses | 16 | 832 | 304 | 432 |
| 502 | Ornithology | 40 | 824 | 207 | 193 |
| 503 | Teaching | 14 | 823 | 798 | 365 |
| 504 | Chromatographic analysis | 24 | 819 | 629 | 402 |
| 505 | International Relations | 16 | 804 | 511 | 202 |
| 506 | Molecular cloning | 19 | 801 | 508 | 419 |
| 506 | Genetic recombination | 19 | 801 | 498 | 412 |
| 506 | Recombinant DNA | 19 | 801 | 562 | 453 |
| 509 | Transportation | 20 | 796 | 635 | 531 |
| 510 | Pathology | 18 | 786 | 1279 | 1212 |
| 511 | Chromatography | 22 | 781 | 542 | 360 |
| 512 | innovation | 12 | 779 | 221 | 281 |
| 513 | Decision making | 20 | 774 | 466 | 415 |
| 514 | Flood control | 56 | 771 | 6 | 9 |
| 515 | Antioxidants | 7 | 752 | 550 | 365 |
| 515 | Carbon | 13 | 752 | 675 | 626 |
| 517 | Animal health | 36 | 746 | 57 | 30 |
| 518 | Health Education | 32 | 742 | 543 | 557 |
| 518 | Animal husbandry | 30 | 742 | 48 | 32 |
| 520 | greenhouse effect | 12 | 738 | 6 | 4 |
| 520 | Carbon dioxide | 12 | 738 | 6 | 4 |
| 522 | Quality of life | 16 | 736 | 571 | 499 |
| 523 | vitamin C | 5 | 735 | 301 | 67 |
| 523 | vitamin E | 5 | 735 | 301 | 67 |
| 525 | Europa | 25 | 725 | 85 | 83 |
| 526 | Zoonoses | 21 | 724 | 28 | 30 |
| 527 | Steroids | 23 | 723 | 309 | 315 |
| 528 | fertility | 8 | 721 | 960 | 553 |
| 529 | Information Science | 18 | 720 | 1001 | 818 |
| 530 | behavioral medicine | 11 | 718 | 710 | 552 |
| 531 | Carcinogenesis | 16 | 691 | 395 | 419 |
| 531 | Social policy | 12 | 691 | 483 | 181 |
| 533 | Image Processing | 9 | 686 | 1336 | 726 |
| 534 | Agricultural Biotechnology | 35 | 683 | 18 | 5 |
| 534 | energy development | 11 | 683 | 320 | 383 |
| 536 | Geographic information systems | 41 | 679 | 100 | 151 |
| 537 | Cell death | 6 | 675 | 1108 | 754 |
| 538 | Social behavior | 24 | 673 | 350 | 457 |
| 538 | mutagens | 15 | 673 | 339 | 392 |
| 540 | Political Geography | 22 | 667 | 41 | 51 |
| 541 | Pharmaceutical Technology | 12 | 664 | 830 | 551 |
| 542 | Yeast | 14 | 663 | 131 | 127 |
| 543 | Archaea | 10 | 657 | 1 | 1 |
| 544 | Public Policy | 22 | 656 | 571 | 591 |
| 544 | planning | 22 | 656 | 123 | 89 |
| 546 | Health Services Research | 18 | 655 | 720 | 577 |
| 546 | Insect biochemistry | 12 | 655 | 193 | 143 |
| 548 | France | 19 | 646 | 99 | 15 |
| 549 | catalytic activity | 11 | 644 | 310 | 207 |
| 550 | Chemical analysis | 11 | 641 | 658 | 319 |
| 551 | Chronic diseases | 6 | 639 | 621 | 449 |
| 552 | Veterinary Pathology | 32 | 633 | 47 | 40 |
| 553 | Social problems | 3 | 625 | 691 | 186 |
| 554 | Scandinavia | 18 | 621 | 150 | 127 |
| 555 | atmosphere | 17 | 620 | 267 | 227 |
| 556 | Industrial Ecology | 7 | 617 | 93 | 73 |
| 557 | carcinogens | 13 | 616 | 464 | 449 |
| 558 | Gene expression regulation | 9 | 615 | 649 | 527 |
| 559 | Wetland ecology | 20 | 611 | 90 | 93 |
| 560 | Manufacturing Processes | 6 | 607 | 1959 | 873 |
| 561 | geological modeling | 23 | 602 | 86 | 153 |
| 562 | landscapes | 21 | 600 | 15 | 19 |
| 563 | Hydrogeology | 20 | 599 | 160 | 134 |
| 563 | Stochastic Processes | 10 | 599 | 460 | 118 |
| 565 | Condensed Matter | 15 | 596 | 2172 | 1679 |
| 566 | Medical Oncology | 12 | 594 | 1408 | 1081 |
| 566 | Plant Taxonomy | 28 | 594 | 93 | 119 |
| 568 | Photochemistry | 21 | 593 | 583 | 630 |
| 569 | brewing | 12 | 591 | 99 | 38 |
| 570 | Biosensors | 10 | 589 | 722 | 721 |
| 570 | Composite Materials | 6 | 589 | 2294 | 1394 |
| 570 | Immune system | 6 | 589 | 951 | 950 |
| 573 | occupational health and safety | 13 | 587 | 84 | 35 |
| 574 | Business Ethics | 7 | 583 | 607 | 521 |
| 575 | Mineral resources | 10 | 580 | 177 | 126 |
| 575 | ecotourism | 25 | 580 | 9 | 22 |
| 577 | Endocrine glands | 7 | 575 | 137 | 178 |
| 578 | polar regions | 28 | 569 | 149 | 198 |
| 579 | Plant Morphology | 25 | 568 | 95 | 109 |
| 580 | Liquid Crystals | 24 | 566 | 278 | 122 |
| 581 | Developmental Genetics | 5 | 565 | 547 | 499 |
| 581 | European integration | 3 | 565 | 241 | 55 |
| 581 | European Economic Community | 3 | 565 | 233 | 55 |
| 584 | Genetic regulation | 7 | 550 | 931 | 792 |
| 585 | Dietetics | 29 | 543 | 216 | 234 |
| 586 | Municipal Engineering | 9 | 541 | 99 | 26 |
| 587 | Organic Geochemistry | 6 | 539 | 279 | 178 |
| 587 | Bioelectronics | 9 | 539 | 633 | 688 |
| 589 | Environmental Psychology | 12 | 538 | 91 | 162 |
| 589 | nuclear magnetic resonance spectroscopy | 15 | 538 | 304 | 206 |
| 591 | Methodology | 25 | 533 | 32 | 42 |
| 592 | Solar Energy | 9 | 526 | 1077 | 758 |
| 593 | Plant Pathology | 5 | 524 | 118 | 29 |
| 594 | Venture Capital | 5 | 522 | 199 | 262 |
| 595 | RNA | 4 | 516 | 522 | 273 |
| 596 | Algal blooms | 8 | 513 | 157 | 159 |
| 596 | Cyanobacteria | 8 | 513 | 157 | 159 |
| 596 | microalgae | 8 | 513 | 157 | 159 |
| 599 | Biofilms | 8 | 512 | 30 | 18 |
| 600 | Risk assessment | 17 | 511 | 115 | 61 |
| 601 | Psychoneuroimmunology | 5 | 510 | 602 | 355 |
| 601 | Neuroimmunology | 5 | 510 | 662 | 395 |
| 603 | Drying | 24 | 506 | 51 | 82 |
| 604 | Travel | 20 | 504 | 213 | 163 |
| 605 | international cooperation | 17 | 500 | 157 | 190 |
| 606 | Learning | 14 | 494 | 646 | 625 |
| 606 | Industry | 8 | 494 | 40 | 74 |
| 608 | Optical materials | 15 | 492 | 1448 | 1559 |
| 609 | Marine Ecology | 22 | 486 | 211 | 232 |
| 609 | Infertility | 5 | 486 | 1147 | 669 |
| 611 | Groundwater | 19 | 484 | 208 | 195 |
| 612 | Cognition | 18 | 482 | 775 | 892 |
| 613 | Information Systems | 18 | 481 | 434 | 484 |
| 613 | eugenics | 7 | 481 | 390 | 167 |
| 615 | Health Risk Assessment | 14 | 479 | 88 | 47 |
| 616 | Organizational change | 12 | 478 | 259 | 200 |
| 617 | hazard mitigation | 11 | 473 | 376 | 303 |
| 618 | viral genetics | 3 | 471 | 427 | 422 |
| 619 | Muscles | 14 | 470 | 401 | 501 |
| 620 | Geobiology | 24 | 469 | 93 | 175 |
| 621 | Taste | 11 | 467 | 104 | 57 |
| 621 | smell | 11 | 467 | 104 | 57 |
| 623 | commerce | 14 | 463 | 697 | 665 |
| 624 | Biodegradation | 18 | 461 | 101 | 220 |
| 624 | local government | 16 | 461 | 79 | 72 |
| 624 | Light | 14 | 461 | 441 | 816 |
| 627 | Algae | 7 | 458 | 574 | 369 |
| 628 | Plant hormones | 7 | 457 | 171 | 81 |
| 628 | Communication | 23 | 457 | 705 | 744 |
| 630 | Sarcopenia | 13 | 454 | 90 | 209 |
| 631 | Information Technology | 15 | 453 | 1122 | 828 |
| 631 | consumer behavior | 6 | 453 | 348 | 225 |
| 633 | health planning | 23 | 452 | 697 | 743 |
| 634 | Carbohydrates | 13 | 451 | 146 | 202 |
| 635 | glycoproteins | 13 | 448 | 165 | 222 |
| 635 | Glycoconjugates | 13 | 448 | 165 | 222 |
| 635 | glycolipids | 13 | 448 | 165 | 222 |
| 638 | Signal Transduction | 16 | 447 | 634 | 974 |
| 639 | health services accessibility | 19 | 444 | 294 | 345 |
| 639 | Porous materials | 10 | 444 | 323 | 130 |
| 641 | Pest control | 17 | 443 | 26 | 8 |
| 642 | breastfeeding | 20 | 442 | 108 | 124 |
| 643 | human development | 8 | 440 | 487 | 370 |
| 643 | child abuse | 4 | 440 | 846 | 438 |
| 645 | Architecture | 7 | 438 | 437 | 86 |
| 645 | construction | 7 | 438 | 96 | 50 |
| 647 | Freeze-Drying | 16 | 435 | 129 | 86 |
| 647 | Hypothermia | 16 | 435 | 129 | 86 |
| 647 | Freeze Drying | 16 | 435 | 129 | 86 |
| 650 | Asia | 31 | 427 | 707 | 781 |
| 651 | Bioethics | 19 | 426 | 280 | 229 |
| 652 | rehabilitation | 12 | 425 | 1323 | 1148 |
| 653 | hygiene | 12 | 424 | 176 | 133 |
| 654 | Metallurgy | 12 | 423 | 1522 | 1176 |
| 655 | Ecological Genetics | 14 | 421 | 200 | 128 |
| 656 | Paleoclimatology | 14 | 420 | 553 | 643 |
| 656 | Telecommunication | 9 | 420 | 1509 | 689 |
| 658 | NMR | 11 | 415 | 227 | 78 |
| 659 | Geochemical Modeling | 20 | 414 | 88 | 168 |
| 660 | Group decision making | 8 | 410 | 252 | 153 |
| 660 | Fluorescence | 13 | 410 | 86 | 32 |
| 662 | Automation | 11 | 409 | 1048 | 889 |
| 662 | Immunopathology | 9 | 409 | 1026 | 867 |
| 662 | Child | 13 | 409 | 1533 | 1280 |
| 665 | complementary therapies | 7 | 401 | 1545 | 770 |
| 666 | Econometrics | 16 | 400 | 594 | 608 |
| 666 | Regional Development | 5 | 400 | 204 | 81 |
| 666 | Development planning | 5 | 400 | 168 | 72 |
| 666 | Economic planning | 5 | 400 | 356 | 131 |
| 670 | Computer Vision | 5 | 397 | 1028 | 723 |
| 671 | Ophthalmology | 3 | 396 | 2251 | 1092 |
| 671 | Sleep Disorders | 6 | 396 | 1591 | 941 |
| 671 | Sleep | 6 | 396 | 1593 | 952 |
| 674 | Medical Ethics | 17 | 389 | 424 | 330 |
| 674 | food industry | 26 | 389 | 61 | 99 |
| 676 | Development Economics | 19 | 388 | 66 | 174 |
| 677 | Seaweed | 6 | 385 | 467 | 331 |
| 678 | Physical organic chemistry | 14 | 378 | 666 | 602 |
| 679 | Economic Thought | 6 | 376 | 194 | 215 |
| 679 | economic conditions | 6 | 376 | 456 | 248 |
| 681 | Neurochemistry | 4 | 375 | 2575 | 1743 |
| 682 | finance | 10 | 374 | 1454 | 1036 |
| 683 | Paleoecology | 8 | 372 | 743 | 597 |
| 684 | Alternative Medicine | 5 | 371 | 1749 | 824 |
| 685 | older people | 19 | 370 | 686 | 573 |
| 686 | Statistics | 24 | 364 | 1132 | 1294 |
| 686 | Inflammation | 9 | 364 | 788 | 817 |
| 688 | Transplantation | 5 | 363 | 1263 | 994 |
| 689 | Agricultural Economics | 21 | 361 | 10 | 14 |
| 689 | Psychopharmacology | 8 | 361 | 1312 | 1269 |
| 691 | mutation | 5 | 360 | 578 | 406 |
| 691 | Industrial Policy | 8 | 360 | 261 | 196 |
| 693 | Pesticide residues | 8 | 359 | 15 | 28 |
| 694 | Sports | 16 | 355 | 1029 | 996 |
| 695 | Bioinorganic chemistry | 15 | 352 | 701 | 734 |
| 695 | Globalization | 10 | 352 | 216 | 180 |
| 697 | urban forestry | 9 | 350 | 72 | 64 |
| 698 | cooperation | 7 | 347 | 46 | 5 |
| 699 | Arthropods | 6 | 346 | 121 | 24 |
| 700 | Astronomy | 5 | 344 | 2696 | 2100 |
| 701 | Public Choice | 4 | 341 | 317 | 137 |
| 701 | cell adhesion molecules | 6 | 341 | 346 | 238 |
| 701 | cell interaction | 6 | 341 | 991 | 778 |
| 701 | wetland management | 13 | 341 | 17 | 37 |
| 701 | Cell communication | 6 | 341 | 618 | 449 |
| 706 | organizational effectiveness | 4 | 338 | 357 | 124 |
| 707 | Ethics | 18 | 335 | 316 | 295 |
| 708 | Behavioral Genetics | 7 | 333 | 149 | 152 |
| 709 | Comparative Physiology | 33 | 332 | 159 | 456 |
| 710 | actuators | 11 | 329 | 1328 | 1465 |
| 710 | transducers | 11 | 329 | 1328 | 1465 |
| 712 | Agroforestry | 11 | 327 | 9 | 5 |
| 713 | Photogrammetry | 28 | 326 | 168 | 96 |
| 714 | Environmental Ethics | 14 | 323 | 16 | 6 |
| 715 | Wind power | 4 | 322 | 262 | 82 |
| 716 | Animal Biotechnology | 8 | 320 | 70 | 51 |
| 716 | Microelectronics | 7 | 320 | 1477 | 1290 |
| 716 | Technology Assessment | 8 | 320 | 100 | 164 |
| 716 | Paleogeography | 5 | 320 | 832 | 603 |
| 716 | Nutritional support | 10 | 320 | 51 | 100 |
| 716 | software | 11 | 320 | 382 | 520 |
| 722 | Classification | 5 | 319 | 191 | 115 |
| 723 | Biomolecules | 4 | 317 | 407 | 309 |
| 724 | International Finance | 8 | 315 | 1089 | 847 |
| 724 | Great Lakes | 7 | 315 | 149 | 122 |
| 726 | consumers | 8 | 313 | 172 | 158 |
| 727 | Alzheimer's disease | 27 | 312 | 583 | 788 |
| 728 | Veterinary Epidemiology | 12 | 308 | 12 | 23 |
| 729 | Clinical Immunology | 7 | 307 | 1117 | 904 |
| 730 | North America | 17 | 304 | 312 | 329 |
| 731 | Synthetic biology | 11 | 303 | 119 | 143 |
| 732 | ecological risk assessment | 10 | 300 | 64 | 55 |
| 733 | foreign exchange | 4 | 299 | 319 | 198 |
| 734 | Leisure | 8 | 298 | 189 | 152 |
| 735 | magnetic resonance | 10 | 297 | 262 | 134 |
| 736 | Biometrics | 15 | 294 | 550 | 641 |
| 737 | Feminism | 13 | 290 | 225 | 174 |
| 738 | Food Preservation | 13 | 289 | 265 | 199 |
| 738 | Financial Institutions | 3 | 289 | 458 | 151 |
| 738 | Spain | 15 | 289 | 265 | 79 |
| 741 | Psychosomatic Medicine | 4 | 288 | 918 | 644 |
| 741 | Small Business | 11 | 288 | 345 | 667 |
| 743 | Vaccination | 3 | 286 | 288 | 111 |
| 744 | visualization | 22 | 283 | 538 | 392 |
| 745 | Cognitive Science | 3 | 280 | 1795 | 1041 |
| 746 | Biomechanics | 8 | 279 | 1028 | 937 |
| 747 | Food Safety | 18 | 278 | 21 | 38 |
| 748 | Ecohydrology | 16 | 277 | 53 | 122 |
| 749 | Ethnic relations | 9 | 276 | 276 | 154 |
| 750 | Thrombosis | 10 | 275 | 779 | 892 |
| 751 | Patient education | 10 | 271 | 336 | 467 |
| 751 | counseling | 10 | 271 | 811 | 766 |
| 753 | Wetland conservation | 7 | 270 | 169 | 148 |
| 753 | Wetlands | 7 | 270 | 172 | 148 |
| 755 | Biotransformation | 23 | 269 | 5 | 14 |
| 755 | Consumer Protection | 6 | 269 | 106 | 76 |
| 755 | Therapeutics | 3 | 269 | 2384 | 1611 |
| 758 | Global Health | 13 | 268 | 461 | 428 |
| 758 | Evolutionary Genetics | 7 | 268 | 387 | 327 |
| 758 | Molecular Epidemiology | 7 | 268 | 387 | 327 |
| 758 | wood | 10 | 268 | 240 | 183 |
| 762 | Customer Relations | 5 | 267 | 46 | 22 |
| 763 | Estuaries | 1 | 266 | 349 | 141 |
| 764 | Health Information Management | 1 | 264 | 702 | 378 |
| 764 | Emerging infectious diseases | 8 | 264 | 141 | 160 |
| 766 | baking | 8 | 263 | 114 | 106 |
| 767 | venom | 5 | 262 | 756 | 427 |
| 767 | Toxins | 5 | 262 | 841 | 477 |
| 769 | sex differences | 4 | 261 | 90 | 71 |
| 770 | Statistical Mechanics | 4 | 260 | 1260 | 438 |
| 771 | Drug delivery systems | 2 | 258 | 2242 | 1287 |
| 772 | Dementia | 26 | 257 | 583 | 776 |
| 773 | Landslides | 3 | 256 | 261 | 181 |
| 774 | flavor | 8 | 252 | 75 | 87 |
| 775 | Allergy | 6 | 251 | 1183 | 1476 |
| 776 | Oligosaccharide | 11 | 250 | 121 | 270 |
| 776 | Diplomatic relations | 4 | 250 | 726 | 116 |
| 778 | Production Engineering | 5 | 248 | 1803 | 992 |
| 779 | Industrial Engineering | 15 | 245 | 859 | 1190 |
| 779 | Eastern Europe | 11 | 245 | 425 | 203 |
| 781 | Flexible manufacturing systems | 4 | 244 | 301 | 170 |
| 782 | Production Planning | 11 | 242 | 66 | 141 |
| 782 | Production Control | 11 | 242 | 66 | 141 |
| 784 | Radiology | 9 | 239 | 1229 | 947 |
| 784 | cosmic rays | 9 | 239 | 294 | 227 |
| 786 | wind erosion | 7 | 237 | 35 | 47 |
| 786 | Medical innovations | 6 | 237 | 892 | 1524 |
| 788 | Histochemistry | 3 | 235 | 1360 | 715 |
| 788 | drug evaluation | 10 | 235 | 764 | 839 |
| 790 | Demography | 11 | 234 | 332 | 475 |
| 790 | race relations | 7 | 234 | 355 | 270 |
| 792 | Evidence-Based Medicine | 4 | 233 | 1348 | 658 |
| 793 | remote sensing technology | 3 | 232 | 38 | 23 |
| 794 | Game Theory | 11 | 229 | 258 | 276 |
| 795 | Morphology | 6 | 226 | 661 | 419 |
| 796 | Economic Geography | 14 | 225 | 85 | 159 |
| 797 | cryosphere | 6 | 223 | 312 | 333 |
| 798 | Ethnic Conflict | 6 | 221 | 158 | 123 |
| 798 | Documentation | 2 | 221 | 539 | 178 |
| 798 | forced migration | 6 | 221 | 158 | 123 |
| 801 | air quality management | 4 | 220 | 481 | 330 |
| 802 | Methods | 12 | 219 | 24 | 16 |
| 803 | Retina | 1 | 217 | 391 | 366 |
| 803 | Simulation Methods | 8 | 217 | 561 | 423 |
| 803 | micromechanics | 7 | 217 | 389 | 377 |
| 803 | eye | 1 | 217 | 465 | 368 |
| 807 | Public opinion | 5 | 216 | 327 | 258 |
| 807 | Islam | 1 | 216 | 1242 | 96 |
| 809 | Architectural Design | 9 | 215 | 198 | 127 |
| 809 | Sports Medicine | 15 | 215 | 1432 | 1701 |
| 809 | Birth control | 2 | 215 | 715 | 307 |
| 812 | Nephrology | 3 | 214 | 779 | 634 |
| 812 | Kidney diseases | 3 | 214 | 1296 | 838 |
| 814 | Systems Engineering | 8 | 212 | 1475 | 1142 |
| 814 | Politics | 2 | 212 | 1005 | 269 |
| 814 | Latin America | 20 | 212 | 566 | 397 |
| 814 | government | 2 | 212 | 1094 | 345 |
| 818 | Ichthyology | 10 | 210 | 201 | 142 |
| 818 | society | 13 | 210 | 6 | 12 |
| 820 | research and development | 3 | 209 | 351 | 211 |
| 821 | Happiness | 4 | 208 | 339 | 244 |
| 822 | Fish | 9 | 207 | 167 | 129 |
| 823 | rivers | 11 | 206 | 93 | 166 |
| 824 | Corporate governance | 5 | 203 | 434 | 338 |
| 825 | Strategic planning | 7 | 201 | 461 | 490 |
| 825 | econometric models | 11 | 201 | 185 | 358 |
| 825 | Exercise | 3 | 201 | 1622 | 818 |
| 828 | Developmental Psychology | 5 | 200 | 930 | 915 |
| 829 | population geography | 9 | 199 | 145 | 197 |
| 829 | Emotions | 6 | 199 | 425 | 557 |
| 831 | Genetic Toxicology | 3 | 198 | 577 | 472 |
| 831 | Stem cells | 6 | 198 | 1532 | 1620 |
| 831 | Oligosaccharides | 2 | 198 | 369 | 141 |
| 834 | Respiratory Infections | 4 | 196 | 359 | 225 |
| 834 | Influenza | 4 | 196 | 259 | 165 |
| 836 | infrared radiation | 9 | 194 | 309 | 221 |
| 837 | Human Capital | 3 | 191 | 277 | 140 |
| 838 | Epigenetics | 5 | 190 | 143 | 77 |
| 838 | Epigenomics | 5 | 190 | 141 | 74 |
| 840 | Organic farming | 7 | 189 | 15 | 15 |
| 841 | environmental remediation | 6 | 188 | 171 | 175 |
| 842 | Jurisprudence | 6 | 186 | 769 | 552 |
| 843 | System analysis | 17 | 182 | 1098 | 1716 |
| 843 | recreation | 4 | 182 | 648 | 321 |
| 845 | Obstetrics | 10 | 181 | 1977 | 2243 |
| 845 | Edible plants | 7 | 181 | 80 | 137 |
| 845 | drug therapy | 9 | 181 | 1858 | 2306 |
| 845 | Soviet Union | 9 | 181 | 365 | 181 |
| 849 | Health risk communication | 4 | 179 | 50 | 33 |
| 850 | Cytoskeleton | 2 | 178 | 424 | 227 |
| 850 | indoor air pollution | 2 | 178 | 604 | 310 |
| 850 | Ventilation | 2 | 178 | 816 | 351 |
| 850 | Sick building syndrome | 2 | 178 | 604 | 310 |
| 854 | Primary health care | 12 | 177 | 997 | 1385 |
| 854 | heredity | 9 | 177 | 383 | 474 |
| 854 | Classroom Environment | 8 | 177 | 13 | 25 |
| 857 | particles | 9 | 175 | 492 | 618 |
| 858 | vascular diseases | 4 | 174 | 815 | 849 |
| 859 | Fluid Mechanics | 10 | 172 | 1111 | 1237 |
| 859 | Coral reef biology | 3 | 172 | 170 | 161 |
| 859 | Knowledge management | 5 | 172 | 368 | 82 |
| 862 | Mental illness | 3 | 170 | 2692 | 2314 |
| 863 | Research Design | 9 | 169 | 792 | 1105 |
| 863 | drug development | 2 | 169 | 1727 | 1671 |
| 863 | Cheminformatics | 5 | 169 | 260 | 408 |
| 863 | coal | 4 | 169 | 1593 | 1607 |
| 863 | amino acids | 6 | 169 | 398 | 491 |
| 863 | Informatics | 6 | 169 | 678 | 748 |
| 869 | Well-being | 8 | 167 | 30 | 71 |
| 869 | internet | 2 | 167 | 1801 | 814 |
| 869 | sexual behavior | 6 | 167 | 513 | 559 |
| 872 | Crystallography | 11 | 166 | 1089 | 877 |
| 872 | X-ray crystallography | 11 | 166 | 333 | 370 |
| 874 | personality | 5 | 164 | 1219 | 1372 |
| 874 | economic development projects | 7 | 164 | 76 | 95 |
| 876 | Elderly | 10 | 162 | 805 | 570 |
| 876 | Marine mammals | 8 | 162 | 174 | 215 |
| 878 | Antibacterial agents | 3 | 161 | 920 | 723 |
| 879 | Clinical Psychology | 3 | 160 | 1850 | 1626 |
| 879 | Ultrasonics | 5 | 160 | 914 | 1060 |
| 879 | Sonochemistry | 4 | 160 | 542 | 708 |
| 879 | Eurasia | 5 | 160 | 148 | 93 |
| 883 | Geopolitics | 7 | 157 | 129 | 104 |
| 883 | Watershed management | 10 | 157 | 40 | 69 |
| 883 | crops | 4 | 157 | 119 | 49 |
| 886 | Holistic Health | 2 | 156 | 704 | 254 |
| 886 | Animal welfare | 4 | 156 | 294 | 246 |
| 886 | calcification | 6 | 156 | 432 | 608 |
| 889 | Occupational exposure | 6 | 155 | 64 | 28 |
| 889 | gene therapy | 4 | 155 | 1299 | 1397 |
| 891 | Photonics | 4 | 154 | 1768 | 1724 |
| 891 | Healing | 1 | 154 | 315 | 48 |
| 891 | Crystal growth | 6 | 154 | 821 | 864 |
| 891 | packaging | 7 | 154 | 48 | 64 |
| 895 | plankton | 3 | 153 | 243 | 185 |
| 895 | Protein engineering | 5 | 153 | 186 | 241 |
| 895 | biological monitoring | 8 | 153 | 247 | 427 |
| 895 | molecular design | 5 | 153 | 219 | 248 |
| 895 | Bones | 5 | 153 | 947 | 1060 |
| 900 | Ireland | 6 | 150 | 121 | 31 |
| 901 | Water Microbiology | 4 | 149 | 400 | 383 |
| 901 | liver | 2 | 149 | 511 | 229 |
| 903 | Advertising | 7 | 148 | 201 | 359 |
| 903 | Human Resources | 8 | 148 | 213 | 440 |
| 905 | Antibodies | 10 | 146 | 398 | 695 |
| 905 | Antigens | 10 | 146 | 568 | 916 |
| 905 | Mountains | 8 | 146 | 194 | 157 |
| 905 | Intellectual disability | 7 | 146 | 608 | 694 |
| 909 | transport vesicles | 3 | 145 | 256 | 577 |
| 910 | Fouling | 3 | 144 | 268 | 243 |
| 911 | Greenhouse gases | 4 | 143 | 310 | 378 |
| 911 | Freshwater invertebrates | 9 | 143 | 92 | 239 |
| 911 | Hospitality industry | 4 | 143 | 328 | 264 |
| 914 | Middle East | 7 | 142 | 655 | 440 |
| 914 | Women's health | 7 | 142 | 989 | 1136 |
| 916 | Building Materials | 2 | 141 | 2179 | 1837 |
| 917 | Smoking | 2 | 140 | 1172 | 836 |
| 918 | Paleontology | 7 | 139 | 1044 | 1046 |
| 918 | educational innovations | 4 | 139 | 469 | 372 |
| 920 | Action Research | 7 | 138 | 94 | 89 |
| 920 | mass transfer | 4 | 138 | 1677 | 1560 |
| 920 | Korea | 2 | 138 | 576 | 139 |
| 923 | Law | 11 | 137 | 896 | 508 |
| 923 | civil service | 4 | 137 | 348 | 288 |
| 925 | Heterocyclic compounds | 9 | 135 | 631 | 537 |
| 926 | Intercultural Communication | 2 | 134 | 534 | 282 |
| 926 | Cross-Cultural Studies | 2 | 134 | 1009 | 504 |
| 926 | Nitric oxide | 6 | 134 | 206 | 291 |
| 929 | Geriatric Psychiatry | 5 | 133 | 1037 | 1171 |
| 929 | solar cells | 4 | 133 | 906 | 1081 |
| 929 | Central Asia | 3 | 133 | 218 | 95 |
| 932 | Software Engineering | 12 | 132 | 505 | 664 |
| 932 | Discourse Analysis | 6 | 132 | 248 | 276 |
| 932 | Photobiology | 7 | 132 | 998 | 1282 |
| 935 | Child Development | 4 | 131 | 2137 | 2100 |
| 935 | Trace elements | 6 | 131 | 135 | 315 |
| 937 | Urban Economics | 4 | 130 | 319 | 405 |
| 937 | educational planning | 4 | 130 | 353 | 340 |
| 939 | Systems Theory | 11 | 128 | 190 | 227 |
| 939 | Cartography | 11 | 128 | 201 | 215 |
| 941 | Water Conservation | 4 | 126 | 61 | 62 |
| 941 | curriculum evaluation | 5 | 126 | 234 | 235 |
| 943 | Archaeology | 13 | 125 | 732 | 1043 |
| 943 | Landscape Architecture | 9 | 125 | 43 | 33 |
| 943 | Marine biodiversity | 12 | 125 | 85 | 124 |
| 946 | Philosophy | 12 | 124 | 1013 | 699 |
| 946 | Neurobiology | 5 | 124 | 1800 | 2357 |
| 946 | Clinical Biochemistry | 4 | 124 | 1525 | 1368 |
| 946 | Foodborne diseases | 3 | 124 | 310 | 237 |
| 950 | Measurement | 3 | 123 | 1489 | 1076 |
| 950 | Protozoa | 3 | 123 | 499 | 442 |
| 952 | Reproductive toxicology | 9 | 122 | 249 | 523 |
| 953 | Welfare Economics | 5 | 121 | 350 | 444 |
| 953 | starch | 6 | 121 | 256 | 291 |
| 955 | Chemotherapy | 7 | 119 | 1283 | 1777 |
| 955 | Systems Analysis | 12 | 119 | 497 | 912 |
| 955 | cell movement | 1 | 119 | 531 | 320 |
| 955 | urban population | 3 | 119 | 233 | 342 |
| 955 | Granular materials | 6 | 119 | 360 | 512 |
| 955 | Genetic therapy | 3 | 119 | 1625 | 1680 |
| 961 | Magnetic Resonance Imaging | 1 | 118 | 1239 | 530 |
| 961 | Oral Medicine | 2 | 118 | 979 | 406 |
| 963 | Food Science | 8 | 117 | 47 | 81 |
| 963 | Sovereignty | 4 | 117 | 84 | 78 |
| 963 | sustainable forestry | 6 | 117 | 51 | 42 |
| 966 | Engineering Ethics | 6 | 116 | 100 | 173 |
| 966 | Professional ethics | 6 | 116 | 146 | 212 |
| 968 | Aquatic ecosystems | 10 | 115 | 58 | 69 |
| 968 | tests | 3 | 115 | 188 | 191 |
| 970 | Electrical Engineering | 3 | 113 | 4115 | 2191 |
| 971 | Social Choice Theory | 3 | 110 | 261 | 141 |
| 971 | Logistics | 4 | 110 | 469 | 585 |
| 971 | Adult Education | 5 | 110 | 457 | 325 |
| 971 | Total Quality Management | 5 | 110 | 363 | 415 |
| 971 | Continuing Education | 5 | 110 | 326 | 214 |
| 971 | Southeast Asia | 9 | 110 | 173 | 170 |
| 971 | Nervous system | 3 | 110 | 3153 | 3263 |
| 971 | Primates | 4 | 110 | 811 | 700 |
| 979 | Geriatric Pharmacology | 4 | 109 | 321 | 372 |
| 979 | Chemical Oceanography | 3 | 109 | 350 | 454 |
| 979 | embryonic development | 7 | 109 | 277 | 497 |
| 979 | Flood forecasting | 9 | 109 | 16 | 94 |
| 979 | educational accountability | 3 | 109 | 117 | 87 |
| 984 | Nuclear Medicine | 4 | 108 | 1220 | 1190 |
| 984 | Sedimentology | 7 | 108 | 393 | 686 |
| 984 | Reproductive health | 4 | 108 | 810 | 844 |
| 987 | Organizational learning | 3 | 107 | 547 | 229 |
| 988 | Nuclear Physics | 5 | 106 | 3898 | 3641 |
| 988 | Molecules | 5 | 106 | 1468 | 1323 |
| 988 | Adolescent | 7 | 106 | 1797 | 2241 |
| 991 | Organizational Sociology | 3 | 105 | 380 | 314 |
| 991 | Customary Law | 6 | 105 | 3 | 3 |
| 993 | Dynamics | 3 | 103 | 2155 | 1371 |
| 993 | Nanobiotechnology | 2 | 103 | 620 | 678 |
| 993 | fuel cells | 1 | 103 | 2117 | 1551 |
| 996 | Historical Geography | 3 | 102 | 238 | 48 |
| 996 | Energy Storage | 2 | 102 | 1747 | 1340 |
| 996 | Environmental Geochemistry | 4 | 102 | 457 | 480 |
| 996 | Sedimentary rocks | 2 | 102 | 832 | 683 |
| 996 | Minerals | 4 | 102 | 736 | 776 |