| 1 | Chemistry | 5,544 | 408.6K | 20 | 18 |
| 2 | Physics | 4,622 | 254.3K | 54 | 109 |
| 3 | Biology | 2,837 | 214.0K | 79 | 114 |
| 4 | Science | 3,167 | 196.2K | 64 | 128 |
| 5 | Materials | 2,580 | 195.4K | 36 | 16 |
| 6 | Nanotechnology | 2,776 | 178.9K | 10 | 15 |
| 7 | Molecular Biology | 3,123 | 144.3K | 28 | 75 |
| 8 | Medicine | 3,576 | 133.5K | 55 | 99 |
| 9 | Biocompatible Materials | 1,881 | 130.6K | 6 | 5 |
| 10 | Materials Science | 1,559 | 98.6K | 33 | 16 |
| 11 | Biochemistry | 3,050 | 91.8K | 72 | 147 |
| 12 | Research | 2,614 | 84.4K | 42 | 76 |
| 13 | Cytology | 1,564 | 79.3K | 33 | 80 |
| 14 | Cancer | 1,469 | 65.9K | 9 | 20 |
| 15 | Optical materials | 924 | 65.1K | 8 | 4 |
| 16 | Cell Biology | 1,134 | 63.7K | 38 | 97 |
| 17 | Natural history | 164 | 61.6K | 286 | 192 |
| 18 | Catalysis | 1,153 | 60.9K | 21 | 26 |
| 19 | nanoscience | 878 | 60.5K | 13 | 15 |
| 20 | Polymers | 1,820 | 57.7K | 20 | 30 |
| 21 | Environmental Health | 1,129 | 55.3K | 22 | 37 |
| 22 | Biotechnology | 1,034 | 53.6K | 40 | 65 |
| 23 | Neurology | 1,333 | 52.3K | 110 | 171 |
| 24 | Nanostructured Materials | 903 | 49.5K | 15 | 14 |
| 25 | Analytical Chemistry | 1,452 | 47.5K | 6 | 13 |
| 26 | polymerization | 1,464 | 46.0K | 20 | 28 |
| 27 | Pollution | 971 | 44.0K | 42 | 80 |
| 28 | Pharmacology | 1,682 | 43.6K | 13 | 55 |
| 29 | Chemical Engineering | 765 | 43.1K | 96 | 62 |
| 30 | Biophysics | 1,370 | 38.8K | 52 | 89 |
| 31 | Microbiology | 919 | 38.0K | 140 | 238 |
| 32 | Bioengineering | 668 | 37.8K | 40 | 69 |
| 33 | Environment | 518 | 36.2K | 107 | 123 |
| 34 | Environmental Engineering | 620 | 35.5K | 26 | 40 |
| 35 | Solid State Physics | 1,323 | 34.7K | 50 | 98 |
| 36 | Virology | 456 | 34.6K | 83 | 118 |
| 37 | Nuclear Physics | 1,539 | 34.0K | 123 | 244 |
| 38 | Condensed Matter | 1,275 | 33.1K | 48 | 113 |
| 39 | Electrochemistry | 747 | 32.8K | 63 | 20 |
| 40 | Ecology | 672 | 30.8K | 192 | 274 |
| 41 | Biomedical Engineering | 1,059 | 28.5K | 16 | 52 |
| 42 | Human genetics | 275 | 28.4K | 89 | 188 |
| 43 | Nanoparticles | 482 | 28.0K | 5 | 3 |
| 44 | fuel cells | 218 | 27.7K | 15 | 6 |
| 45 | Genetics | 596 | 27.5K | 80 | 151 |
| 46 | Colloids | 705 | 27.1K | 32 | 39 |
| 47 | miniaturization | 338 | 27.0K | 30 | 32 |
| 48 | Nanostructures | 261 | 26.9K | 10 | 12 |
| 49 | Microelectronics | 406 | 26.6K | 20 | 29 |
| 50 | Surface Chemistry | 681 | 24.1K | 34 | 51 |
| 51 | Oncology | 464 | 23.7K | 16 | 45 |
| 52 | Optics | 1,045 | 23.1K | 71 | 76 |
| 53 | Cell death | 509 | 23.0K | 4 | 9 |
| 54 | Biochemical Engineering | 522 | 22.9K | 43 | 110 |
| 55 | China | 1,390 | 22.1K | 9 | 10 |
| 56 | Immunology | 483 | 21.8K | 111 | 154 |
| 57 | sanitation | 306 | 20.7K | 24 | 48 |
| 58 | Energy Conversion | 181 | 20.1K | 33 | 30 |
| 59 | Signal Processing | 669 | 19.4K | 27 | 69 |
| 60 | Photonics | 519 | 19.3K | 17 | 37 |
| 61 | Medical genetics | 466 | 19.0K | 72 | 128 |
| 62 | Signal Transduction | 278 | 18.2K | 7 | 5 |
| 63 | Liver diseases | 283 | 18.2K | 22 | 44 |
| 64 | Mathematics | 1,568 | 18.1K | 43 | 82 |
| 65 | Environmental monitoring | 399 | 17.8K | 30 | 42 |
| 66 | Public Health | 588 | 17.6K | 150 | 208 |
| 67 | Medical Oncology | 420 | 17.4K | 28 | 33 |
| 68 | Toxicology | 641 | 16.1K | 46 | 102 |
| 69 | environmental protection | 393 | 15.5K | 12 | 24 |
| 70 | environmental pollution | 478 | 15.5K | 67 | 138 |
| 71 | Electronics | 610 | 15.4K | 54 | 88 |
| 72 | Environmental Policy | 272 | 15.3K | 48 | 70 |
| 73 | Statistical physics | 586 | 15.0K | 91 | 136 |
| 74 | Pharmaceutical Chemistry | 598 | 14.8K | 39 | 115 |
| 75 | Environmental Chemistry | 95 | 14.8K | 109 | 47 |
| 76 | Geophysics | 465 | 14.5K | 194 | 236 |
| 77 | Immunity | 275 | 14.4K | 50 | 147 |
| 78 | Image Processing | 413 | 13.6K | 30 | 64 |
| 79 | Botany | 264 | 13.5K | 283 | 267 |
| 80 | Organic Chemistry | 478 | 13.5K | 26 | 58 |
| 81 | Immunotherapy | 446 | 13.2K | 3 | 49 |
| 82 | Genomics | 510 | 13.0K | 19 | 72 |
| 83 | nucleic acids | 195 | 12.7K | 57 | 106 |
| 84 | Physiology | 369 | 12.0K | 188 | 259 |
| 85 | Neurochemistry | 373 | 11.8K | 48 | 97 |
| 86 | Clinical Chemistry | 442 | 11.8K | 25 | 70 |
| 87 | Atmospheric Physics | 325 | 11.5K | 47 | 84 |
| 88 | Physical Chemistry | 180 | 11.4K | 98 | 67 |
| 89 | Psychiatry | 290 | 11.3K | 238 | 287 |
| 90 | Bioorganic chemistry | 372 | 11.2K | 22 | 55 |
| 91 | Environmental Law | 175 | 11.1K | 7 | 11 |
| 92 | Oncogenes | 182 | 11.1K | 22 | 43 |
| 93 | Quantum Gravity | 462 | 10.9K | 130 | 244 |
| 94 | Epidemiology | 348 | 10.9K | 114 | 161 |
| 95 | Environmental Toxicology | 262 | 10.8K | 14 | 36 |
| 96 | Developmental Biology | 183 | 10.5K | 125 | 146 |
| 97 | management | 241 | 10.2K | 132 | 249 |
| 98 | Bioinformatics | 325 | 10.0K | 12 | 86 |
| 99 | Carbon | 119 | 9.8K | 41 | 32 |
| 100 | Mathematical Physics | 366 | 9.7K | 76 | 129 |
| 101 | Green Chemistry | 198 | 9.5K | 30 | 53 |
| 102 | Brain | 340 | 9.5K | 106 | 198 |
| 103 | Computational Biology | 294 | 9.4K | 40 | 129 |
| 104 | Neurophysiology | 277 | 9.4K | 172 | 265 |
| 105 | Neurobiology | 151 | 9.3K | 112 | 129 |
| 106 | Artificial Intelligence | 302 | 9.2K | 93 | 164 |
| 107 | Magnetic Materials | 282 | 9.0K | 13 | 16 |
| 108 | Cell differentiation | 172 | 9.0K | 78 | 146 |
| 109 | Economics | 370 | 8.9K | 182 | 222 |
| 110 | plant molecular biology | 107 | 8.9K | 121 | 123 |
| 111 | proteins | 293 | 8.6K | 20 | 59 |
| 112 | Biomass Energy | 110 | 8.3K | 145 | 110 |
| 113 | Diagnostic Imaging | 335 | 8.3K | 13 | 49 |
| 114 | Medical Microbiology | 189 | 8.3K | 99 | 139 |
| 115 | Atmospheric Chemistry | 161 | 8.2K | 64 | 88 |
| 116 | Emerging infectious diseases | 179 | 8.2K | 1 | 2 |
| 117 | Meteorology | 434 | 8.0K | 59 | 176 |
| 118 | Environmental Management | 166 | 8.0K | 86 | 86 |
| 119 | Plant cells | 78 | 8.0K | 135 | 156 |
| 120 | Spectrum analysis | 410 | 8.0K | 239 | 506 |
| 121 | genome | 131 | 7.9K | 62 | 125 |
| 122 | Composite Materials | 174 | 7.9K | 185 | 183 |
| 123 | Nutrition | 339 | 7.8K | 138 | 293 |
| 124 | Metabolic diseases | 150 | 7.7K | 175 | 228 |
| 125 | Renewable Energy Sources | 55 | 7.6K | 379 | 194 |
| 126 | Geriatrics | 256 | 7.6K | 144 | 152 |
| 127 | Ophthalmology | 417 | 7.5K | 30 | 94 |
| 128 | Metabolism | 249 | 7.5K | 146 | 276 |
| 129 | Aging | 276 | 7.4K | 115 | 158 |
| 130 | Nonlinear Dynamics | 231 | 7.3K | 91 | 102 |
| 131 | Endocrinology | 196 | 7.2K | 233 | 329 |
| 132 | Cardiovascular system | 124 | 7.1K | 142 | 190 |
| 133 | free radicals | 130 | 7.1K | 36 | 52 |
| 134 | Neurons | 40 | 7.1K | 104 | 123 |
| 135 | Plants | 165 | 7.0K | 87 | 156 |
| 136 | Production Management | 96 | 7.0K | 49 | 44 |
| 137 | Diabetes | 189 | 6.9K | 106 | 183 |
| 138 | actuators | 186 | 6.9K | 62 | 67 |
| 138 | transducers | 186 | 6.9K | 62 | 67 |
| 140 | Plant physiology | 101 | 6.9K | 212 | 155 |
| 141 | Reproduction | 285 | 6.9K | 59 | 112 |
| 142 | Pathology | 262 | 6.9K | 80 | 180 |
| 143 | Biosensors | 144 | 6.8K | 20 | 31 |
| 144 | Radiobiology | 170 | 6.8K | 71 | 72 |
| 145 | Economic History | 348 | 6.7K | 43 | 90 |
| 146 | cytokines | 265 | 6.5K | 12 | 12 |
| 147 | Information Technology | 269 | 6.5K | 12 | 62 |
| 148 | Drug delivery systems | 148 | 6.4K | 14 | 55 |
| 149 | Oxidation-reduction | 96 | 6.4K | 7 | 13 |
| 150 | Sustainable Engineering | 143 | 6.4K | 36 | 44 |
| 151 | Water | 82 | 6.3K | 320 | 240 |
| 152 | Neural circuitry | 236 | 6.2K | 38 | 56 |
| 153 | Genetic engineering | 220 | 6.2K | 26 | 90 |
| 154 | Automation | 136 | 6.2K | 174 | 206 |
| 155 | Chromatographic analysis | 288 | 6.1K | 10 | 9 |
| 156 | Technology | 281 | 6.1K | 140 | 213 |
| 157 | Wireless Communication Systems | 221 | 6.1K | 104 | 147 |
| 158 | Engineering | 233 | 6.1K | 179 | 153 |
| 159 | Diabetes mellitus | 155 | 6.0K | 119 | 193 |
| 160 | Energy Storage | 115 | 6.0K | 37 | 36 |
| 161 | Immunopharmacology | 244 | 6.0K | 13 | 12 |
| 162 | Inflammation | 113 | 6.0K | 7 | 5 |
| 163 | Oxidative stress | 92 | 6.0K | 6 | 9 |
| 164 | Nervous system | 198 | 6.0K | 123 | 227 |
| 165 | Proteome | 153 | 5.9K | 19 | 34 |
| 166 | gene mapping | 232 | 5.9K | 36 | 128 |
| 167 | Water pollution | 94 | 5.8K | 297 | 215 |
| 168 | Pharmacognosy | 188 | 5.8K | 33 | 49 |
| 169 | cell physiology | 134 | 5.7K | 71 | 117 |
| 170 | Electrophoresis | 213 | 5.7K | 9 | 18 |
| 171 | Climatology | 322 | 5.7K | 43 | 150 |
| 172 | Cytogenetics | 97 | 5.6K | 101 | 143 |
| 173 | Zeolites | 119 | 5.5K | 8 | 5 |
| 174 | lasers | 253 | 5.4K | 52 | 66 |
| 175 | Chromatography | 241 | 5.4K | 7 | 8 |
| 176 | Nanobiotechnology | 114 | 5.2K | 4 | 9 |
| 177 | Pediatrics | 154 | 5.2K | 178 | 236 |
| 178 | Mental Disorders | 157 | 5.2K | 203 | 302 |
| 179 | Solid State Chemistry | 231 | 5.1K | 75 | 87 |
| 180 | Fiber Optics | 209 | 5.1K | 10 | 28 |
| 181 | viruses | 115 | 4.9K | 124 | 166 |
| 182 | Bioelectronics | 98 | 4.9K | 32 | 48 |
| 183 | Energy Policy | 81 | 4.9K | 271 | 228 |
| 184 | Pharmacy | 144 | 4.9K | 123 | 96 |
| 185 | Chromosome mapping | 215 | 4.9K | 26 | 98 |
| 186 | Multimedia Systems | 163 | 4.8K | 39 | 31 |
| 187 | Hypertension | 93 | 4.7K | 178 | 219 |
| 188 | Genetic regulation | 76 | 4.7K | 67 | 99 |
| 189 | Medical Physics | 192 | 4.7K | 85 | 133 |
| 189 | Immune system | 82 | 4.7K | 64 | 158 |
| 191 | Computer Vision | 99 | 4.7K | 55 | 95 |
| 192 | Vaccines | 191 | 4.6K | 40 | 79 |
| 193 | Telecommunication | 214 | 4.6K | 136 | 251 |
| 194 | Host-parasite interactions | 74 | 4.5K | 95 | 148 |
| 195 | Microbial Ecology | 76 | 4.5K | 301 | 317 |
| 196 | biological evolution | 114 | 4.5K | 195 | 308 |
| 197 | Alzheimer's disease | 163 | 4.5K | 93 | 84 |
| 198 | United States | 167 | 4.4K | 458 | 487 |
| 199 | Stem cells | 217 | 4.4K | 24 | 98 |
| 200 | Proteomics | 128 | 4.4K | 11 | 35 |
| 201 | Environmental pollutants | 220 | 4.4K | 18 | 89 |
| 202 | Energy Harvesting | 48 | 4.4K | 32 | 35 |
| 203 | Recombinant DNA | 182 | 4.4K | 13 | 32 |
| 204 | mathematical analysis | 350 | 4.3K | 11 | 55 |
| 205 | Plant Genetics | 49 | 4.3K | 44 | 34 |
| 206 | Cell metabolism | 54 | 4.3K | 24 | 90 |
| 207 | Leukemia | 30 | 4.3K | 243 | 114 |
| 208 | Statistics | 239 | 4.2K | 114 | 205 |
| 209 | economic policy | 203 | 4.2K | 41 | 73 |
| 210 | Molecules | 87 | 4.2K | 157 | 73 |
| 211 | Remote Sensing | 30 | 4.2K | 284 | 17 |
| 212 | drugs | 165 | 4.1K | 69 | 107 |
| 213 | carcinogens | 116 | 4.1K | 25 | 38 |
| 214 | Health Policy | 115 | 4.1K | 170 | 141 |
| 215 | Light | 26 | 4.1K | 213 | 125 |
| 216 | Developing countries | 120 | 4.1K | 115 | 128 |
| 217 | Biodiversity conservation | 32 | 4.0K | 391 | 308 |
| 218 | Information Science | 143 | 4.0K | 97 | 153 |
| 219 | biopolymers | 120 | 4.0K | 47 | 53 |
| 220 | natural products | 126 | 4.0K | 55 | 68 |
| 221 | Medicinal plants | 151 | 4.0K | 24 | 43 |
| 222 | Pharmaceutical Technology | 120 | 4.0K | 29 | 45 |
| 223 | Climate change | 20 | 4.0K | 319 | 255 |
| 224 | Homeostasis | 35 | 4.0K | 35 | 98 |
| 225 | Astrophysics | 173 | 3.9K | 481 | 747 |
| 226 | health planning | 218 | 3.9K | 16 | 49 |
| 227 | Molecular cloning | 146 | 3.9K | 13 | 40 |
| 228 | finance | 172 | 3.9K | 65 | 155 |
| 229 | Quantum electronics | 151 | 3.9K | 76 | 72 |
| 230 | Europe | 179 | 3.9K | 186 | 212 |
| 231 | biological factors | 114 | 3.9K | 45 | 78 |
| 232 | multimedia | 89 | 3.8K | 28 | 21 |
| 232 | Interactive multimedia | 89 | 3.8K | 28 | 21 |
| 234 | Membranes | 57 | 3.8K | 290 | 215 |
| 235 | Metals | 104 | 3.8K | 201 | 213 |
| 236 | environmental exposure | 189 | 3.8K | 13 | 69 |
| 237 | Mental illness | 97 | 3.8K | 174 | 249 |
| 238 | Genetic recombination | 138 | 3.8K | 14 | 45 |
| 239 | Critical Care | 94 | 3.7K | 150 | 236 |
| 240 | cell interaction | 148 | 3.7K | 4 | 18 |
| 241 | Embryology | 102 | 3.7K | 155 | 222 |
| 242 | Soft Condensed Matter | 105 | 3.7K | 62 | 60 |
| 243 | Organometallic compounds | 103 | 3.6K | 44 | 52 |
| 244 | Intelligent Transportation Systems | 58 | 3.6K | 98 | 62 |
| 245 | energy resources | 52 | 3.6K | 125 | 144 |
| 246 | Critical Care Medicine | 85 | 3.6K | 164 | 236 |
| 246 | biocatalysis | 15 | 3.6K | 19 | 22 |
| 246 | Homogeneous catalysis | 15 | 3.6K | 19 | 22 |
| 246 | Heterogeneous catalysis | 15 | 3.6K | 19 | 22 |
| 250 | Numerical Analysis | 204 | 3.6K | 34 | 78 |
| 251 | Virulence | 78 | 3.6K | 84 | 163 |
| 252 | Eutrophication | 18 | 3.6K | 340 | 271 |
| 253 | Radio | 118 | 3.6K | 116 | 183 |
| 254 | Drug design | 97 | 3.5K | 32 | 47 |
| 255 | drug evaluation | 141 | 3.5K | 8 | 17 |
| 256 | Carcinogenesis | 98 | 3.5K | 24 | 44 |
| 256 | System analysis | 85 | 3.5K | 210 | 128 |
| 258 | Psychophysiology | 77 | 3.5K | 497 | 450 |
| 259 | Allergy | 45 | 3.5K | 185 | 205 |
| 260 | Physical organic chemistry | 102 | 3.5K | 29 | 21 |
| 261 | Psychology | 173 | 3.5K | 518 | 626 |
| 262 | Behavior | 96 | 3.4K | 423 | 528 |
| 263 | Business | 47 | 3.4K | 397 | 318 |
| 264 | Operations Research | 102 | 3.4K | 183 | 191 |
| 265 | Obstetrics | 188 | 3.4K | 140 | 216 |
| 266 | Systems Biology | 156 | 3.3K | 17 | 62 |
| 267 | Asia | 226 | 3.3K | 44 | 70 |
| 268 | infection | 121 | 3.3K | 61 | 124 |
| 269 | Molecular structure | 116 | 3.3K | 126 | 201 |
| 270 | Parasitic Diseases | 103 | 3.3K | 97 | 134 |
| 271 | Diet | 119 | 3.3K | 149 | 280 |
| 272 | Immunopathology | 121 | 3.3K | 51 | 105 |
| 273 | Molecular evolution | 87 | 3.3K | 92 | 167 |
| 274 | Differential Equations | 144 | 3.2K | 10 | 16 |
| 275 | Gene expression regulation | 59 | 3.2K | 66 | 105 |
| 276 | pollutants | 170 | 3.2K | 21 | 118 |
| 277 | mutagens | 85 | 3.2K | 25 | 49 |
| 278 | Hematology | 127 | 3.2K | 329 | 397 |
| 279 | soil microbiology | 55 | 3.2K | 190 | 218 |
| 280 | commerce | 91 | 3.1K | 45 | 141 |
| 281 | Surgery | 96 | 3.1K | 168 | 330 |
| 282 | Tourism | 80 | 3.1K | 128 | 181 |
| 283 | Socioeconomic Factors | 105 | 3.1K | 6 | 15 |
| 283 | Genetic therapy | 124 | 3.1K | 36 | 94 |
| 285 | human behavior | 73 | 3.0K | 341 | 462 |
| 286 | Neuropsychology | 111 | 3.0K | 228 | 293 |
| 287 | Lipids | 103 | 3.0K | 43 | 115 |
| 288 | Functional Analysis | 185 | 2.9K | 7 | 29 |
| 289 | Semiconductors | 248 | 2.9K | 31 | 84 |
| 290 | Medical Laboratory Science | 85 | 2.9K | 171 | 265 |
| 291 | Medical innovations | 61 | 2.9K | 57 | 142 |
| 292 | Combinatorial chemistry | 52 | 2.9K | 60 | 61 |
| 293 | atmosphere | 122 | 2.9K | 10 | 20 |
| 294 | Economic Development | 75 | 2.8K | 122 | 178 |
| 295 | gene therapy | 101 | 2.8K | 44 | 114 |
| 296 | Clinical Pharmacology | 141 | 2.8K | 40 | 72 |
| 297 | Egypt | 38 | 2.8K | 35 | 5 |
| 298 | Control Theory | 78 | 2.8K | 205 | 148 |
| 299 | computer networks | 131 | 2.8K | 137 | 207 |
| 300 | Herbal medicine | 90 | 2.8K | 20 | 22 |
| 301 | Sustainable Development | 64 | 2.8K | 111 | 149 |
| 302 | Therapeutics | 77 | 2.8K | 175 | 200 |
| 303 | Dementia | 127 | 2.8K | 100 | 102 |
| 304 | Radiography | 66 | 2.8K | 80 | 123 |
| 305 | Developmental Genetics | 17 | 2.7K | 144 | 109 |
| 306 | Clinical Immunology | 64 | 2.7K | 105 | 77 |
| 307 | Molecular Genetics | 63 | 2.7K | 244 | 312 |
| 308 | Electromagnetism | 121 | 2.7K | 24 | 40 |
| 309 | viral genetics | 12 | 2.7K | 106 | 94 |
| 310 | Diagnostic microbiology | 40 | 2.6K | 184 | 215 |
| 311 | Data Mining | 89 | 2.6K | 36 | 145 |
| 312 | Planets | 136 | 2.6K | 170 | 312 |
| 313 | marketing | 72 | 2.6K | 215 | 319 |
| 314 | Alternative Medicine | 67 | 2.6K | 81 | 46 |
| 315 | Optical Communications | 135 | 2.6K | 13 | 22 |
| 316 | International Finance | 116 | 2.6K | 46 | 104 |
| 317 | complementary therapies | 64 | 2.6K | 97 | 56 |
| 318 | drug therapy | 130 | 2.6K | 184 | 283 |
| 319 | Respiration | 115 | 2.6K | 98 | 188 |
| 320 | Neurosurgery | 82 | 2.6K | 37 | 79 |
| 321 | Nuclear Medicine | 111 | 2.5K | 51 | 90 |
| 322 | Chemical analysis | 116 | 2.5K | 11 | 34 |
| 323 | Molecular Pharmacology | 61 | 2.5K | 44 | 58 |
| 324 | Systems Engineering | 79 | 2.5K | 174 | 166 |
| 325 | Catalysts | 76 | 2.4K | 9 | 17 |
| 326 | catalytic activity | 59 | 2.4K | 25 | 32 |
| 327 | Industrial Microbiology | 80 | 2.4K | 106 | 223 |
| 328 | Agricultural Chemistry | 59 | 2.4K | 324 | 285 |
| 329 | Orthopedics | 138 | 2.4K | 74 | 146 |
| 330 | Medical Technology | 101 | 2.4K | 43 | 85 |
| 331 | Ultrasonics | 102 | 2.3K | 36 | 88 |
| 332 | Cybernetics | 66 | 2.3K | 165 | 235 |
| 333 | Sociology | 120 | 2.3K | 285 | 405 |
| 334 | Environmental Microbiology | 44 | 2.3K | 162 | 206 |
| 335 | Cerebral cortex | 76 | 2.3K | 69 | 152 |
| 336 | Infections | 68 | 2.3K | 81 | 150 |
| 337 | rehabilitation | 114 | 2.3K | 148 | 270 |
| 338 | Public Policy | 62 | 2.3K | 198 | 181 |
| 339 | Solitons | 79 | 2.3K | 21 | 32 |
| 339 | Fractals | 79 | 2.3K | 21 | 32 |
| 339 | Chaos | 79 | 2.3K | 21 | 32 |
| 342 | Antioxidants | 37 | 2.2K | 50 | 81 |
| 343 | Histology | 102 | 2.2K | 145 | 269 |
| 344 | environmental indicators | 39 | 2.2K | 87 | 53 |
| 345 | arthritis | 55 | 2.2K | 179 | 241 |
| 346 | Database Management | 70 | 2.2K | 71 | 84 |
| 347 | Obesity | 81 | 2.2K | 223 | 330 |
| 348 | Computer Graphics | 83 | 2.2K | 172 | 216 |
| 349 | Biopharmaceutics | 49 | 2.2K | 83 | 83 |
| 350 | Radiation | 150 | 2.1K | 52 | 160 |
| 351 | Industrial Engineering | 66 | 2.1K | 207 | 217 |
| 352 | Gastrointestinal diseases | 104 | 2.1K | 2 | 5 |
| 353 | internet | 82 | 2.1K | 91 | 162 |
| 354 | Recycling | 38 | 2.1K | 36 | 60 |
| 355 | Clinical Biochemistry | 44 | 2.1K | 136 | 103 |
| 356 | city planning | 57 | 2.1K | 197 | 154 |
| 357 | Nanoelectronics | 121 | 2.1K | 14 | 11 |
| 358 | Anatomy | 55 | 2.1K | 340 | 316 |
| 359 | Metallurgy | 69 | 2.1K | 341 | 358 |
| 360 | Molecular Imaging | 85 | 2.1K | 32 | 81 |
| 361 | Social Sciences | 102 | 2.0K | 350 | 372 |
| 362 | Radio waves | 67 | 2.0K | 112 | 144 |
| 363 | Ultrasound | 95 | 2.0K | 26 | 51 |
| 364 | Electrochemical Analysis | 76 | 2.0K | 127 | 151 |
| 365 | Hormones | 71 | 2.0K | 108 | 190 |
| 365 | Semiconductor industry | 104 | 2.0K | 12 | 10 |
| 367 | Parasitology | 90 | 2.0K | 189 | 246 |
| 368 | mycoses | 35 | 2.0K | 72 | 143 |
| 369 | data collection | 45 | 2.0K | 57 | 125 |
| 370 | Process Control | 29 | 2.0K | 140 | 136 |
| 370 | Educational Technology | 112 | 2.0K | 30 | 103 |
| 372 | Primary health care | 81 | 1.9K | 153 | 182 |
| 373 | Astronomy | 105 | 1.9K | 547 | 752 |
| 374 | Orthopedic Surgery | 100 | 1.9K | 16 | 36 |
| 374 | Gerontology | 127 | 1.9K | 153 | 219 |
| 376 | Digestive system diseases | 111 | 1.9K | 29 | 80 |
| 377 | Bacterial infections | 40 | 1.9K | 72 | 166 |
| 378 | Food | 56 | 1.9K | 513 | 558 |
| 379 | Plastics | 84 | 1.9K | 90 | 136 |
| 380 | Mass Spectrometry | 92 | 1.9K | 53 | 131 |
| 381 | Organometallic chemistry | 81 | 1.8K | 126 | 119 |
| 382 | Radiation Oncology | 81 | 1.8K | 4 | 8 |
| 383 | energy conservation | 44 | 1.8K | 331 | 442 |
| 384 | Antibacterial agents | 64 | 1.8K | 14 | 30 |
| 385 | healthcare disparities | 76 | 1.8K | 12 | 16 |
| 386 | Nonlinear functional analysis | 120 | 1.8K | 8 | 24 |
| 387 | Psychopharmacology | 46 | 1.8K | 271 | 319 |
| 388 | Microorganisms | 32 | 1.8K | 137 | 197 |
| 389 | Internet of Things | 74 | 1.7K | 84 | 159 |
| 390 | Earth Sciences | 123 | 1.7K | 314 | 611 |
| 391 | cloning | 31 | 1.7K | 67 | 106 |
| 392 | poverty | 73 | 1.7K | 2 | 12 |
| 393 | Neuroimmunology | 33 | 1.7K | 95 | 114 |
| 394 | Ecological Engineering | 36 | 1.7K | 24 | 27 |
| 395 | Adolescent Medicine | 14 | 1.7K | 172 | 122 |
| 395 | Kidney diseases | 75 | 1.7K | 59 | 101 |
| 397 | histological techniques | 53 | 1.7K | 35 | 76 |
| 398 | probabilities | 106 | 1.7K | 91 | 88 |
| 398 | Detectors | 106 | 1.7K | 52 | 114 |
| 400 | Plant Ecology | 42 | 1.7K | 367 | 396 |
| 401 | pain | 49 | 1.7K | 206 | 269 |
| 402 | Geography | 43 | 1.7K | 427 | 368 |
| 403 | sustainability | 30 | 1.7K | 95 | 133 |
| 404 | Drug targeting | 44 | 1.6K | 6 | 8 |
| 405 | Biodiversity | 58 | 1.6K | 301 | 418 |
| 406 | Technological Innovations | 50 | 1.6K | 41 | 57 |
| 407 | brain mapping | 47 | 1.6K | 66 | 115 |
| 408 | Growth | 34 | 1.6K | 268 | 333 |
| 409 | Evolution | 37 | 1.6K | 439 | 479 |
| 410 | Pharmacogenetics | 66 | 1.6K | 50 | 115 |
| 411 | drug development | 43 | 1.6K | 92 | 208 |
| 411 | fertility | 42 | 1.6K | 163 | 208 |
| 413 | Psychoneuroimmunology | 28 | 1.6K | 94 | 111 |
| 414 | Child Development | 59 | 1.6K | 312 | 401 |
| 415 | Infertility | 40 | 1.6K | 153 | 194 |
| 416 | Surface properties | 49 | 1.6K | 68 | 111 |
| 417 | Tropical Medicine | 62 | 1.6K | 156 | 155 |
| 418 | Health Services Research | 76 | 1.6K | 166 | 227 |
| 419 | acupuncture | 135 | 1.6K | 2 | 1 |
| 419 | biochemical markers | 67 | 1.6K | 6 | 13 |
| 421 | Urology | 87 | 1.6K | 193 | 293 |
| 422 | Surface-Active Agents | 45 | 1.5K | 74 | 105 |
| 423 | ovary | 81 | 1.5K | 1 | 1 |
| 424 | Mechanics | 41 | 1.5K | 187 | 105 |
| 425 | Dermatology | 113 | 1.5K | 144 | 292 |
| 426 | Quality of life | 73 | 1.5K | 67 | 213 |
| 426 | Cell communication | 61 | 1.5K | 7 | 31 |
| 428 | Databases | 49 | 1.5K | 46 | 57 |
| 429 | energy development | 18 | 1.5K | 160 | 176 |
| 430 | Manufacturing Processes | 34 | 1.5K | 590 | 406 |
| 430 | Quantum theory | 57 | 1.5K | 97 | 79 |
| 432 | health services accessibility | 30 | 1.5K | 168 | 87 |
| 433 | Communication | 71 | 1.5K | 254 | 396 |
| 434 | Nanochemistry | 88 | 1.5K | 16 | 36 |
| 435 | Animal Behavior | 18 | 1.4K | 709 | 490 |
| 436 | Cardiovascular diseases | 98 | 1.4K | 126 | 285 |
| 437 | Reproductive health | 54 | 1.4K | 40 | 55 |
| 438 | occupational diseases | 34 | 1.4K | 106 | 105 |
| 439 | Cellular senescence | 18 | 1.4K | 16 | 26 |
| 440 | Pediatric Neurology | 30 | 1.4K | 215 | 317 |
| 441 | Marine Meteorology | 93 | 1.4K | 26 | 73 |
| 442 | international trade | 25 | 1.4K | 81 | 78 |
| 443 | Biomarkers | 53 | 1.4K | 6 | 8 |
| 444 | analysis | 28 | 1.4K | 55 | 56 |
| 445 | Parasites | 56 | 1.3K | 137 | 199 |
| 446 | DNS | 108 | 1.3K | 3 | 15 |
| 447 | Ethology | 13 | 1.3K | 670 | 436 |
| 448 | Urban Policy | 32 | 1.3K | 95 | 76 |
| 449 | Plant genetic engineering | 25 | 1.3K | 187 | 167 |
| 450 | Molecular Microbiology | 28 | 1.3K | 223 | 285 |
| 451 | Thrombosis | 66 | 1.3K | 114 | 214 |
| 451 | Parenteral nutrition | 43 | 1.3K | 128 | 216 |
| 453 | Cell cycle | 49 | 1.3K | 8 | 24 |
| 453 | cell proliferation | 49 | 1.3K | 8 | 24 |
| 455 | Photochemistry | 53 | 1.3K | 171 | 255 |
| 456 | Respiratory system | 61 | 1.3K | 17 | 51 |
| 456 | DNA | 106 | 1.3K | 1 | 14 |
| 458 | Audiology | 47 | 1.3K | 119 | 132 |
| 459 | Computer Science | 163 | 1.3K | 20 | 163 |
| 460 | Mobile Computing | 66 | 1.3K | 79 | 154 |
| 461 | plant communities | 18 | 1.3K | 372 | 310 |
| 462 | Immunochemistry | 53 | 1.3K | 57 | 96 |
| 463 | Pharmacokinetics | 46 | 1.2K | 52 | 100 |
| 464 | epilepsy | 45 | 1.2K | 93 | 109 |
| 465 | Global Health | 33 | 1.2K | 142 | 77 |
| 466 | Japan | 41 | 1.2K | 251 | 156 |
| 467 | Rheumatology | 48 | 1.2K | 160 | 280 |
| 468 | Fracture mechanics | 65 | 1.2K | 174 | 241 |
| 469 | Electrical Engineering | 136 | 1.2K | 306 | 477 |
| 469 | Engineering Mathematics | 134 | 1.2K | 66 | 230 |
| 471 | pigments | 45 | 1.2K | 80 | 73 |
| 472 | Microwaves | 108 | 1.2K | 122 | 232 |
| 473 | synthesis | 89 | 1.2K | 17 | 24 |
| 474 | Soil biology | 16 | 1.2K | 332 | 295 |
| 474 | gastrointestinal tract | 21 | 1.2K | 31 | 44 |
| 476 | disease outbreaks | 14 | 1.1K | 161 | 77 |
| 476 | Epidemics | 14 | 1.1K | 160 | 77 |
| 478 | Nanophotonics | 40 | 1.1K | 8 | 24 |
| 479 | Sound | 50 | 1.1K | 120 | 132 |
| 480 | Ceramic materials | 37 | 1.1K | 207 | 199 |
| 481 | Marine Biology | 26 | 1.1K | 853 | 681 |
| 482 | eye | 23 | 1.1K | 16 | 94 |
| 482 | Muscles | 39 | 1.1K | 102 | 172 |
| 484 | Regional Planning | 26 | 1.1K | 435 | 315 |
| 485 | air quality management | 40 | 1.1K | 17 | 40 |
| 485 | Pregnancy | 81 | 1.1K | 26 | 86 |
| 487 | visualization | 99 | 1.1K | 95 | 147 |
| 488 | Enteral nutrition | 35 | 1.1K | 91 | 191 |
| 489 | Information Theory | 78 | 1.1K | 127 | 296 |
| 490 | Bacteriology | 27 | 1.1K | 524 | 593 |
| 491 | Bioinorganic chemistry | 50 | 1.1K | 224 | 272 |
| 492 | protein | 62 | 1.1K | 109 | 251 |
| 493 | Mechanical Engineering | 69 | 1.1K | 346 | 387 |
| 493 | Diagnosis | 65 | 1.1K | 6 | 13 |
| 495 | Medical Anthropology | 32 | 1.1K | 264 | 348 |
| 496 | Health | 65 | 1.1K | 269 | 421 |
| 497 | Genes | 80 | 1.1K | 49 | 151 |
| 498 | Econometrics | 70 | 1.0K | 141 | 290 |
| 499 | Ultrasonic Imaging | 49 | 1.0K | 19 | 34 |
| 500 | Analytical Biochemistry | 73 | 1.0K | 102 | 322 |
| 500 | Child | 66 | 1.0K | 316 | 497 |
| 502 | Developmental Immunology | 12 | 1.0K | 186 | 79 |
| 503 | Ferroelectricity | 63 | 1.0K | 101 | 105 |
| 504 | Evidence-Based Medicine | 38 | 1.0K | 60 | 52 |
| 505 | Public Administration | 49 | 1.0K | 210 | 253 |
| 506 | Geometry | 99 | 1.0K | 55 | 81 |
| 507 | Chromosomes | 33 | 1.0K | 140 | 193 |
| 508 | mass transfer | 37 | 1.0K | 389 | 461 |
| 509 | Food additives | 29 | 1.0K | 181 | 251 |
| 510 | Oceanography | 75 | 998 | 255 | 497 |
| 511 | Photobiology | 39 | 997 | 130 | 185 |
| 512 | Capital market | 39 | 990 | 24 | 42 |
| 513 | United Kingdom | 41 | 986 | 286 | 416 |
| 514 | Health Education | 34 | 979 | 424 | 366 |
| 515 | Geology | 25 | 978 | 1045 | 839 |
| 515 | Solar Energy | 26 | 978 | 391 | 438 |
| 517 | Autism | 14 | 967 | 242 | 172 |
| 518 | Radio frequency | 46 | 966 | 39 | 72 |
| 519 | behavioral medicine | 35 | 965 | 249 | 376 |
| 520 | Soil Science | 19 | 953 | 648 | 493 |
| 521 | Robotics | 32 | 951 | 411 | 384 |
| 522 | Health Services Administration | 48 | 949 | 88 | 144 |
| 523 | Sleep | 60 | 940 | 203 | 342 |
| 524 | Ocean Engineering | 28 | 934 | 505 | 454 |
| 525 | Superconductors | 38 | 933 | 195 | 127 |
| 526 | Sleep Disorders | 55 | 920 | 226 | 345 |
| 527 | drug resistance | 43 | 907 | 25 | 87 |
| 528 | enzymes | 34 | 902 | 291 | 374 |
| 529 | Radiology | 79 | 901 | 104 | 192 |
| 530 | RNA | 16 | 894 | 135 | 119 |
| 531 | biological invasions | 15 | 893 | 154 | 77 |
| 532 | DNA polymerases | 14 | 892 | 116 | 199 |
| 533 | Schizophrenia | 25 | 891 | 264 | 300 |
| 534 | older people | 97 | 889 | 152 | 250 |
| 535 | Leadership | 3 | 885 | 531 | 153 |
| 535 | Autoimmunity | 33 | 885 | 107 | 205 |
| 537 | food technology | 34 | 884 | 637 | 746 |
| 537 | indoor air pollution | 26 | 884 | 34 | 55 |
| 537 | Ventilation | 26 | 884 | 71 | 67 |
| 537 | Sick building syndrome | 26 | 884 | 34 | 55 |
| 541 | solar cells | 18 | 875 | 217 | 215 |
| 542 | Agriculture | 18 | 871 | 695 | 497 |
| 543 | Sarcopenia | 20 | 860 | 39 | 81 |
| 544 | Mycology | 39 | 859 | 291 | 431 |
| 545 | solar power | 17 | 858 | 192 | 191 |
| 546 | Developed countries | 18 | 854 | 28 | 34 |
| 547 | Social Change | 21 | 847 | 211 | 306 |
| 548 | planning | 44 | 844 | 40 | 62 |
| 549 | Systems Analysis | 32 | 829 | 153 | 129 |
| 549 | toxicity testing | 37 | 829 | 23 | 49 |
| 551 | Integrative Medicine | 83 | 828 | 6 | 13 |
| 552 | Political Science | 58 | 821 | 298 | 378 |
| 552 | Calculus of Variations | 85 | 821 | 8 | 39 |
| 554 | Power Electronics | 35 | 818 | 221 | 372 |
| 555 | Wetland ecology | 11 | 813 | 120 | 50 |
| 556 | Software Engineering | 27 | 810 | 222 | 248 |
| 556 | Chemotherapy | 46 | 810 | 203 | 315 |
| 558 | Autoimmune diseases | 27 | 808 | 96 | 123 |
| 559 | Vision | 27 | 807 | 169 | 215 |
| 560 | Luminescence | 72 | 804 | 52 | 150 |
| 561 | Forensic Genetics | 38 | 802 | 21 | 44 |
| 562 | Ethnology | 20 | 796 | 415 | 183 |
| 563 | hydrocolloids | 11 | 793 | 262 | 242 |
| 564 | tomography | 62 | 788 | 12 | 35 |
| 564 | Pancreatic diseases | 30 | 788 | 33 | 41 |
| 566 | Molecular Spectroscopy | 60 | 787 | 179 | 360 |
| 566 | Social work | 31 | 787 | 353 | 271 |
| 568 | rare diseases | 52 | 786 | 28 | 128 |
| 569 | Women's health | 49 | 785 | 124 | 198 |
| 570 | Dynamics | 50 | 783 | 174 | 229 |
| 571 | Adolescent | 45 | 782 | 379 | 519 |
| 572 | anesthesia | 61 | 781 | 15 | 12 |
| 573 | Regeneration | 30 | 771 | 3 | 3 |
| 574 | libraries | 14 | 770 | 160 | 51 |
| 575 | Informatics | 34 | 764 | 71 | 153 |
| 576 | cardiac catheterization | 39 | 760 | 93 | 104 |
| 577 | biofuels | 11 | 756 | 72 | 79 |
| 577 | Wetland conservation | 9 | 756 | 99 | 38 |
| 577 | Wetlands | 9 | 756 | 100 | 38 |
| 580 | Land use | 12 | 754 | 457 | 246 |
| 581 | vascular diseases | 26 | 752 | 149 | 248 |
| 582 | Andrology | 36 | 748 | 51 | 95 |
| 583 | Biomechanics | 36 | 747 | 241 | 376 |
| 584 | disease vectors | 43 | 745 | 92 | 183 |
| 585 | Retina | 5 | 744 | 107 | 123 |
| 586 | Food service management | 10 | 742 | 132 | 131 |
| 587 | glycoproteins | 38 | 738 | 31 | 102 |
| 587 | Glycoconjugates | 38 | 738 | 31 | 102 |
| 587 | glycolipids | 38 | 738 | 31 | 102 |
| 590 | Human-Computer Interaction | 34 | 737 | 222 | 349 |
| 591 | Breeding | 18 | 735 | 389 | 321 |
| 592 | Ecosystem management | 12 | 731 | 253 | 161 |
| 593 | Cognitive Science | 40 | 723 | 251 | 496 |
| 594 | Biogeography | 8 | 714 | 575 | 431 |
| 595 | biomedicine | 23 | 709 | 50 | 66 |
| 596 | Memory | 26 | 698 | 500 | 559 |
| 597 | Microbial Biotechnology | 28 | 697 | 97 | 157 |
| 598 | preventive medicine | 35 | 696 | 218 | 370 |
| 599 | Humanities | 55 | 695 | 73 | 142 |
| 599 | Functional Genomics | 5 | 695 | 161 | 66 |
| 599 | Hemodynamics | 17 | 695 | 215 | 267 |
| 602 | Crystal growth | 25 | 677 | 223 | 251 |
| 603 | software | 46 | 674 | 49 | 268 |
| 604 | Biological Systems | 23 | 673 | 56 | 77 |
| 604 | Decision making | 41 | 673 | 206 | 401 |
| 606 | ecosystem | 9 | 666 | 685 | 510 |
| 607 | Nuclear Engineering | 83 | 661 | 179 | 284 |
| 608 | particles | 33 | 659 | 103 | 149 |
| 608 | medical education | 33 | 659 | 378 | 419 |
| 610 | Endocrine glands | 10 | 656 | 82 | 113 |
| 611 | Boundary Value Problems | 34 | 654 | 109 | 152 |
| 612 | Ornithology | 22 | 650 | 279 | 202 |
| 612 | Birds | 22 | 650 | 350 | 261 |
| 614 | Antenna Arrays | 30 | 643 | 105 | 143 |
| 614 | Metastasis | 15 | 643 | 15 | 70 |
| 616 | biological monitoring | 14 | 642 | 90 | 72 |
| 617 | Geochemistry | 33 | 641 | 585 | 759 |
| 618 | Plant Biotechnology | 14 | 640 | 231 | 189 |
| 618 | Biomolecules | 23 | 640 | 46 | 131 |
| 620 | Graphene | 6 | 637 | 32 | 18 |
| 621 | Neuropsychiatry | 11 | 633 | 347 | 219 |
| 621 | mutation | 19 | 633 | 122 | 171 |
| 623 | Immunogenetics | 22 | 631 | 139 | 142 |
| 624 | preimplantation genetic diagnosis | 35 | 629 | 30 | 49 |
| 624 | embryo transfer | 35 | 629 | 33 | 54 |
| 626 | Antigens | 14 | 627 | 285 | 215 |
| 627 | Biogeochemistry | 11 | 626 | 519 | 483 |
| 628 | Genetic Toxicology | 20 | 624 | 45 | 96 |
| 629 | Phylogeny | 27 | 622 | 155 | 328 |
| 630 | Social Psychology | 43 | 621 | 498 | 831 |
| 630 | bioclimatology | 28 | 621 | 97 | 171 |
| 630 | Autoantibodies | 23 | 621 | 95 | 156 |
| 633 | Neurotoxicology | 27 | 620 | 49 | 123 |
| 633 | Australia | 44 | 620 | 241 | 357 |
| 633 | drug toxicity | 22 | 620 | 32 | 42 |
| 636 | Metallography | 13 | 617 | 304 | 183 |
| 637 | transport vesicles | 7 | 614 | 81 | 216 |
| 638 | Organizational change | 10 | 609 | 291 | 156 |
| 639 | Business Ethics | 16 | 608 | 319 | 546 |
| 639 | Gene library | 11 | 608 | 15 | 8 |
| 641 | Population | 22 | 604 | 188 | 238 |
| 642 | Microprocessors | 24 | 602 | 85 | 51 |
| 642 | peptides | 37 | 602 | 47 | 87 |
| 644 | hygiene | 23 | 600 | 49 | 59 |
| 645 | Randomized Controlled Trials | 71 | 598 | 72 | 164 |
| 646 | Housing | 11 | 596 | 172 | 105 |
| 647 | Algebra | 67 | 595 | 178 | 213 |
| 647 | Jurisprudence | 46 | 595 | 115 | 192 |
| 647 | econometric models | 30 | 595 | 33 | 96 |
| 650 | Heart Failure | 4 | 594 | 282 | 151 |
| 651 | personality | 32 | 591 | 400 | 657 |
| 652 | Sports Medicine | 61 | 590 | 432 | 787 |
| 653 | gene transfer | 41 | 589 | 2 | 36 |
| 653 | Bacterial diseases | 20 | 589 | 12 | 32 |
| 653 | genetic transformation | 41 | 589 | 2 | 36 |
| 656 | Neonatology | 27 | 588 | 70 | 113 |
| 657 | Developmental Psychology | 14 | 586 | 413 | 407 |
| 658 | big data | 28 | 585 | 24 | 88 |
| 659 | micromechanics | 14 | 582 | 198 | 142 |
| 660 | X-rays | 52 | 580 | 20 | 45 |
| 661 | Investment analysis | 42 | 578 | 43 | 157 |
| 662 | Geriatric Psychiatry | 28 | 575 | 171 | 266 |
| 663 | Stochastic Processes | 29 | 570 | 128 | 123 |
| 663 | Hemostasis | 34 | 570 | 103 | 172 |
| 663 | language | 11 | 570 | 355 | 275 |
| 666 | Chemical Oceanography | 4 | 566 | 224 | 122 |
| 667 | Laser therapy | 52 | 559 | 17 | 35 |
| 668 | Computer Architecture | 19 | 558 | 107 | 59 |
| 669 | Histocompatibility Testing | 12 | 557 | 151 | 80 |
| 670 | Nonlinear mechanics | 10 | 556 | 161 | 61 |
| 671 | Geobiology | 12 | 553 | 147 | 110 |
| 672 | Development | 16 | 548 | 232 | 284 |
| 673 | Quality Control | 12 | 544 | 668 | 488 |
| 673 | Economic Thought | 10 | 544 | 104 | 143 |
| 673 | Screening | 14 | 544 | 16 | 13 |
| 673 | economic conditions | 10 | 544 | 208 | 153 |
| 677 | Bibliometrics | 21 | 543 | 13 | 31 |
| 678 | Hematopoietic stem cell transplantation | 22 | 540 | 39 | 113 |
| 678 | Child psychology | 14 | 540 | 603 | 646 |
| 680 | Cheminformatics | 7 | 539 | 118 | 122 |
| 681 | eugenics | 19 | 538 | 100 | 99 |
| 682 | Urban Planning | 11 | 537 | 117 | 98 |
| 683 | Insects | 11 | 535 | 694 | 378 |
| 684 | Nephrology | 9 | 534 | 223 | 205 |
| 685 | Economic Assistance | 13 | 529 | 236 | 274 |
| 685 | world | 13 | 529 | 250 | 314 |
| 687 | Nitric oxide | 13 | 527 | 27 | 28 |
| 688 | Parallel Processing | 30 | 525 | 67 | 178 |
| 689 | Tissue Engineering | 23 | 520 | 32 | 84 |
| 690 | economic indicators | 37 | 519 | 4 | 7 |
| 691 | Oral Medicine | 35 | 515 | 58 | 90 |
| 692 | Food Microbiology | 17 | 513 | 369 | 542 |
| 693 | Contraception | 26 | 512 | 117 | 153 |
| 694 | Biochemical Genetics | 43 | 511 | 5 | 25 |
| 694 | Transportation | 21 | 511 | 519 | 620 |
| 696 | Water quality management | 26 | 508 | 438 | 514 |
| 696 | Cytokine | 22 | 508 | 36 | 142 |
| 698 | Occupational Health | 18 | 501 | 267 | 248 |
| 699 | global environmental change | 19 | 494 | 188 | 353 |
| 700 | Information Systems | 22 | 493 | 325 | 398 |
| 700 | Astrocytes | 18 | 493 | 101 | 239 |
| 702 | Urban Economics | 7 | 491 | 174 | 134 |
| 702 | urban population | 7 | 491 | 99 | 102 |
| 704 | Chemical industry | 40 | 490 | 193 | 277 |
| 705 | food handling | 7 | 488 | 481 | 300 |
| 706 | Securities | 25 | 486 | 8 | 54 |
| 707 | radiative transfer | 55 | 482 | 56 | 156 |
| 708 | Drug delivery devices | 9 | 481 | 49 | 62 |
| 709 | Music | 29 | 479 | 131 | 152 |
| 710 | voice | 28 | 478 | 58 | 91 |
| 711 | Evolutionary Genetics | 36 | 477 | 25 | 120 |
| 711 | Molecular Epidemiology | 36 | 477 | 25 | 120 |
| 713 | East Asia | 39 | 471 | 38 | 50 |
| 714 | Cognition | 34 | 466 | 465 | 749 |
| 715 | Artificial Organs | 20 | 465 | 164 | 133 |
| 716 | Hydrology | 28 | 463 | 669 | 942 |
| 717 | weather | 19 | 458 | 86 | 139 |
| 718 | Bioenergetics | 11 | 457 | 383 | 364 |
| 718 | Molecular ecology | 16 | 457 | 401 | 577 |
| 720 | Agricultural Ecology | 7 | 454 | 578 | 493 |
| 721 | Mutagenesis | 18 | 452 | 54 | 58 |
| 722 | Apoptosis | 21 | 450 | 19 | 44 |
| 722 | neurotoxins | 21 | 450 | 19 | 44 |
| 722 | Neurotoxic agents | 21 | 450 | 19 | 44 |
| 722 | Nerve regeneration | 21 | 450 | 19 | 44 |
| 726 | Cell division | 15 | 449 | 64 | 106 |
| 726 | Steroids | 25 | 449 | 220 | 327 |
| 728 | Soil ecology | 9 | 438 | 372 | 330 |
| 729 | Quantitative Research | 19 | 436 | 51 | 101 |
| 730 | Climate | 14 | 434 | 147 | 196 |
| 731 | Transplantation | 22 | 432 | 300 | 462 |
| 731 | Learning | 13 | 432 | 599 | 548 |
| 733 | Marine Pollution | 14 | 430 | 465 | 551 |
| 734 | Insect biochemistry | 6 | 429 | 260 | 167 |
| 735 | Ceramics | 22 | 427 | 417 | 459 |
| 736 | community development | 10 | 426 | 241 | 130 |
| 737 | Computer-Aided Design | 23 | 425 | 300 | 399 |
| 737 | Transgenic plants | 15 | 425 | 96 | 133 |
| 739 | Eastern Europe | 21 | 423 | 148 | 80 |
| 739 | Parkinson's disease | 19 | 423 | 25 | 60 |
| 741 | amino acids | 13 | 419 | 129 | 160 |
| 742 | chromatin | 4 | 418 | 72 | 44 |
| 743 | Integrated Circuits | 83 | 417 | 15 | 69 |
| 744 | Education | 36 | 413 | 941 | 1216 |
| 744 | Multilingualism | 11 | 413 | 70 | 41 |
| 746 | Elderly | 73 | 412 | 148 | 229 |
| 747 | foreign exchange | 18 | 410 | 32 | 121 |
| 748 | heredity | 38 | 409 | 61 | 177 |
| 749 | Oligosaccharides | 26 | 408 | 16 | 46 |
| 750 | coal | 13 | 406 | 730 | 863 |
| 751 | Population Genetics | 17 | 402 | 440 | 595 |
| 752 | Bones | 14 | 401 | 274 | 389 |
| 753 | Plant tissue culture | 15 | 400 | 185 | 227 |
| 754 | Continental shelf | 4 | 399 | 299 | 147 |
| 755 | Human Geography | 8 | 398 | 635 | 397 |
| 756 | Spine | 22 | 394 | 176 | 311 |
| 757 | Plant cell culture | 12 | 393 | 198 | 233 |
| 758 | Statistical Mechanics | 30 | 388 | 127 | 193 |
| 759 | Community Psychiatry | 8 | 387 | 467 | 386 |
| 760 | Histochemistry | 35 | 385 | 142 | 366 |
| 761 | Waste management | 18 | 382 | 411 | 423 |
| 762 | Flexible electronics | 11 | 381 | 12 | 24 |
| 762 | Cognitive neuroscience | 15 | 381 | 395 | 549 |
| 762 | Radioisotopes | 20 | 381 | 286 | 227 |
| 762 | Carbohydrates | 19 | 381 | 75 | 172 |
| 766 | Child welfare | 20 | 380 | 316 | 356 |
| 767 | Microwave devices | 16 | 375 | 150 | 147 |
| 768 | Multiple sclerosis | 19 | 373 | 125 | 101 |
| 769 | Computational Chemistry | 23 | 369 | 106 | 304 |
| 770 | microwave communication systems | 15 | 368 | 108 | 120 |
| 771 | Hydrodynamics | 27 | 366 | 103 | 274 |
| 772 | Measurement | 27 | 357 | 277 | 484 |
| 773 | Reproductive toxicology | 10 | 355 | 129 | 144 |
| 774 | Structural Engineering | 10 | 348 | 880 | 737 |
| 774 | Tribology | 20 | 348 | 363 | 451 |
| 776 | Nuclear Energy | 56 | 345 | 125 | 303 |
| 777 | Cell survival | 9 | 343 | 46 | 57 |
| 777 | molecular chaperones | 9 | 343 | 57 | 57 |
| 779 | Long-Term Care | 9 | 341 | 229 | 257 |
| 779 | Long-term care facilities | 9 | 341 | 228 | 257 |
| 779 | optical devices | 25 | 341 | 41 | 100 |
| 782 | Multivariate Analysis | 24 | 339 | 85 | 197 |
| 783 | Growth factors | 12 | 337 | 40 | 166 |
| 784 | Telecommunication Systems | 24 | 336 | 400 | 558 |
| 784 | machinery | 18 | 336 | 194 | 233 |
| 786 | vibration | 17 | 334 | 397 | 530 |
| 787 | Wildlife conservation | 11 | 333 | 499 | 656 |
| 787 | Psychiatric Epidemiology | 5 | 333 | 323 | 251 |
| 789 | Respiratory Infections | 16 | 332 | 70 | 81 |
| 790 | Cognitive Therapy | 3 | 330 | 603 | 267 |
| 790 | Geriatric Oncology | 20 | 330 | 119 | 236 |
| 790 | Sonochemistry | 7 | 330 | 331 | 379 |
| 790 | Oligosaccharide | 12 | 330 | 82 | 150 |
| 794 | Simulation Methods | 9 | 321 | 467 | 275 |
| 795 | transgenic organisms | 11 | 320 | 37 | 66 |
| 796 | Forest Ecology | 7 | 319 | 621 | 535 |
| 796 | Forest Management | 7 | 319 | 580 | 499 |
| 798 | Otolaryngology | 25 | 318 | 120 | 199 |
| 799 | Geomorphology | 9 | 315 | 808 | 833 |
| 799 | soil conservation | 10 | 315 | 294 | 318 |
| 801 | Bone diseases | 19 | 314 | 84 | 286 |
| 802 | Environmental Geology | 13 | 313 | 705 | 805 |
| 802 | Microcirculation | 19 | 313 | 84 | 175 |
| 802 | Social behavior | 12 | 313 | 516 | 613 |
| 802 | primary prevention | 6 | 313 | 222 | 134 |
| 802 | alcoholism | 22 | 313 | 441 | 661 |
| 802 | Europa | 6 | 313 | 317 | 202 |
| 808 | Politics | 7 | 312 | 310 | 203 |
| 808 | government | 7 | 312 | 349 | 234 |
| 810 | Radiochemistry | 52 | 311 | 97 | 266 |
| 810 | dietary supplements | 26 | 311 | 91 | 356 |
| 810 | Plant hormones | 3 | 311 | 296 | 110 |
| 810 | stocks | 10 | 311 | 9 | 28 |
| 810 | Influenza | 15 | 311 | 28 | 46 |
| 815 | Emulsions | 11 | 310 | 99 | 48 |
| 816 | cultural pluralism | 6 | 308 | 230 | 79 |
| 817 | Transnational corporations | 8 | 307 | 118 | 100 |
| 818 | Eating Disorders | 12 | 303 | 360 | 384 |
| 818 | Feeding and Eating Disorders | 12 | 303 | 343 | 371 |
| 820 | Emergency Medicine | 16 | 302 | 471 | 441 |
| 820 | Plant diseases | 14 | 302 | 867 | 871 |
| 822 | Smart Materials | 19 | 301 | 247 | 386 |
| 822 | Entropy | 30 | 301 | 115 | 294 |
| 824 | Earthquake Engineering | 6 | 300 | 945 | 715 |
| 824 | soil pollution | 9 | 300 | 176 | 144 |
| 824 | Perception | 14 | 300 | 730 | 827 |
| 827 | transgenic animals | 9 | 299 | 47 | 73 |
| 827 | Mineral resources | 12 | 299 | 148 | 297 |
| 829 | Teratology | 6 | 296 | 156 | 127 |
| 829 | World Wide Web | 39 | 296 | 8 | 72 |
| 831 | locomotion | 11 | 295 | 257 | 305 |
| 831 | posture | 11 | 295 | 257 | 305 |
| 831 | Electrophysiology | 31 | 295 | 189 | 372 |
| 831 | gait | 11 | 295 | 257 | 305 |
| 831 | walking | 11 | 295 | 257 | 305 |
| 836 | Water Purification | 15 | 293 | 376 | 424 |
| 836 | Neuroplasticity | 11 | 293 | 37 | 76 |
| 838 | Mass Media | 26 | 292 | 126 | 153 |
| 839 | Palliative Care | 16 | 291 | 253 | 281 |
| 839 | Attention | 14 | 291 | 647 | 755 |
| 841 | Entomology | 14 | 289 | 1010 | 897 |
| 842 | Nuclear Chemistry | 49 | 288 | 118 | 337 |
| 843 | Liquid Crystals | 31 | 287 | 191 | 205 |
| 844 | Agricultural Science | 1 | 286 | 384 | 172 |
| 844 | Agronomy | 1 | 286 | 730 | 283 |
| 844 | abnormalities | 5 | 286 | 98 | 74 |
| 847 | Financial management | 12 | 285 | 138 | 264 |
| 847 | Visual Perception | 13 | 285 | 642 | 727 |
| 847 | atmospheric models | 16 | 285 | 231 | 408 |
| 850 | Information Retrieval | 9 | 284 | 184 | 217 |
| 851 | adolescence | 15 | 283 | 341 | 496 |
| 852 | Research Design | 15 | 281 | 405 | 598 |
| 852 | Raman spectroscopy | 14 | 281 | 241 | 331 |
| 854 | Sales management | 11 | 280 | 73 | 241 |
| 854 | selling | 11 | 280 | 73 | 241 |
| 856 | Biofilms | 7 | 279 | 41 | 66 |
| 857 | Structural dynamics | 11 | 278 | 478 | 635 |
| 858 | Metabolic syndrome | 20 | 277 | 25 | 46 |
| 859 | Glass | 17 | 276 | 352 | 525 |
| 859 | pottery | 17 | 276 | 342 | 519 |
| 859 | sports injuries | 27 | 276 | 58 | 150 |
| 862 | neuronal plasticity | 9 | 273 | 5 | 44 |
| 863 | Regional Economics | 2 | 272 | 586 | 183 |
| 864 | Plant breeding | 17 | 271 | 194 | 326 |
| 865 | Lipid metabolism | 9 | 268 | 148 | 231 |
| 865 | Lipid | 9 | 268 | 148 | 231 |
| 867 | Land Use Planning | 3 | 267 | 376 | 218 |
| 867 | Vaccination | 10 | 267 | 52 | 88 |
| 867 | Health promotion | 21 | 267 | 296 | 466 |
| 870 | Conservation Biology | 12 | 266 | 465 | 635 |
| 870 | Solar System | 4 | 266 | 613 | 405 |
| 872 | Hypertension in pregnancy | 9 | 265 | 46 | 33 |
| 873 | Industry | 2 | 264 | 247 | 146 |
| 873 | Fuzzy systems | 20 | 264 | 446 | 546 |
| 875 | Blood vessels | 14 | 262 | 72 | 154 |
| 876 | Evolutionary Psychology | 19 | 261 | 8 | 38 |
| 876 | health services | 17 | 261 | 318 | 442 |
| 878 | Computational Intelligence | 28 | 258 | 66 | 228 |
| 878 | Neuromuscular diseases | 19 | 258 | 172 | 310 |
| 880 | Patient education | 6 | 257 | 355 | 320 |
| 880 | counseling | 7 | 257 | 815 | 590 |
| 882 | Industrial Safety | 7 | 255 | 693 | 545 |
| 883 | violence | 7 | 254 | 592 | 543 |
| 884 | Cosmochemistry | 23 | 252 | 213 | 521 |
| 885 | Hazardous waste | 9 | 251 | 459 | 760 |
| 886 | health behavior | 13 | 250 | 345 | 462 |
| 886 | Capitalism | 5 | 250 | 86 | 37 |
| 888 | Clinical Psychology | 7 | 249 | 734 | 711 |
| 888 | Antibodies | 6 | 249 | 351 | 288 |
| 890 | cell adhesion molecules | 11 | 248 | 18 | 137 |
| 891 | scientific societies | 8 | 246 | 358 | 331 |
| 892 | Optoelectronics | 35 | 245 | 40 | 88 |
| 892 | Algorithms | 26 | 245 | 80 | 248 |
| 894 | International Relations | 23 | 243 | 299 | 415 |
| 894 | Small Business | 4 | 243 | 640 | 691 |
| 896 | Zoology | 19 | 241 | 986 | 1139 |
| 897 | Post-traumatic stress disorder | 7 | 240 | 439 | 448 |
| 898 | Body Image | 3 | 238 | 209 | 143 |
| 898 | Hearing | 12 | 238 | 287 | 317 |
| 900 | Pacific Islands | 20 | 237 | 37 | 47 |
| 901 | Physical Therapy | 13 | 236 | 514 | 742 |
| 901 | Approximation Theory | 14 | 236 | 140 | 128 |
| 903 | Neuropharmacology | 14 | 235 | 183 | 317 |
| 904 | Substance Abuse | 19 | 233 | 472 | 711 |
| 905 | pharmaceutical industry | 14 | 232 | 139 | 201 |
| 906 | Thin Films | 13 | 231 | 136 | 162 |
| 907 | Mental Health Services | 12 | 229 | 479 | 552 |
| 907 | Imaging systems | 25 | 229 | 87 | 192 |
| 909 | Social welfare | 8 | 228 | 290 | 234 |
| 910 | Religion | 14 | 227 | 321 | 163 |
| 911 | Developmental Disabilities | 11 | 226 | 455 | 629 |
| 912 | Neurotransmitters | 22 | 225 | 110 | 223 |
| 913 | Developmental Neurobiology | 12 | 224 | 151 | 227 |
| 914 | Crystallography | 37 | 223 | 375 | 546 |
| 914 | Optoelectronic devices | 23 | 223 | 171 | 268 |
| 914 | Atomic spectroscopy | 31 | 223 | 236 | 552 |
| 917 | Emergency Medical Services | 11 | 222 | 229 | 220 |
| 917 | Mental Health | 16 | 222 | 552 | 764 |
| 917 | Mesoporous materials | 6 | 222 | 40 | 53 |
| 917 | geological modeling | 9 | 222 | 187 | 200 |
| 921 | Phylogenetics | 7 | 221 | 27 | 19 |
| 922 | hospice care | 13 | 220 | 164 | 185 |
| 922 | Computational Complexity | 25 | 220 | 134 | 323 |
| 924 | Structural design | 15 | 219 | 254 | 435 |
| 925 | Nuclear Fusion | 27 | 218 | 151 | 250 |
| 926 | Pharmacogenomics | 9 | 216 | 77 | 140 |
| 926 | sex crimes | 4 | 216 | 540 | 333 |
| 928 | Environmentalism | 2 | 215 | 200 | 103 |
| 929 | Physical fitness | 11 | 211 | 458 | 628 |
| 930 | Anti-inflammatory agents | 5 | 209 | 123 | 97 |
| 930 | Expert Systems | 2 | 209 | 303 | 49 |
| 932 | drug addiction | 12 | 208 | 481 | 687 |
| 933 | Psychometrics | 9 | 207 | 241 | 280 |
| 934 | Consciousness | 11 | 205 | 173 | 271 |
| 935 | Operator theory | 22 | 204 | 41 | 54 |
| 935 | Social policy | 12 | 204 | 421 | 465 |
| 935 | calcification | 10 | 204 | 222 | 332 |
| 935 | Youth | 12 | 204 | 277 | 454 |
| 935 | Yeast | 9 | 204 | 172 | 278 |
| 940 | Landscape Ecology | 7 | 203 | 255 | 322 |
| 941 | consumer behavior | 9 | 202 | 223 | 380 |
| 941 | Magnetic Resonance Spectroscopy | 22 | 202 | 381 | 578 |
| 943 | breastfeeding | 12 | 201 | 124 | 222 |
| 943 | mental processes | 9 | 201 | 164 | 142 |
| 943 | international cooperation | 13 | 201 | 195 | 348 |
| 946 | Asthma | 15 | 200 | 162 | 270 |
| 947 | Technology Assessment | 5 | 198 | 210 | 310 |
| 947 | Corporate governance | 15 | 198 | 86 | 369 |
| 947 | Biometrics | 24 | 198 | 303 | 549 |
| 950 | Nursing | 29 | 197 | 462 | 867 |
| 950 | Computer Engineering | 8 | 197 | 471 | 388 |
| 950 | Oral Pathology | 8 | 197 | 20 | 43 |
| 950 | Heat Exchangers | 11 | 197 | 624 | 965 |
| 950 | Birth control | 12 | 197 | 136 | 246 |
| 955 | Toxins | 7 | 196 | 462 | 453 |
| 956 | Travel | 10 | 195 | 297 | 344 |
| 956 | Interferons | 13 | 195 | 44 | 129 |
| 958 | Microfabrication | 10 | 194 | 118 | 153 |
| 959 | Logistics | 11 | 193 | 192 | 419 |
| 959 | Geochemical Modeling | 8 | 193 | 118 | 163 |
| 961 | Iron | 3 | 192 | 297 | 126 |
| 961 | Fluorescence | 11 | 192 | 102 | 126 |
| 963 | Radiation Protection | 38 | 191 | 36 | 129 |
| 963 | radiation monitoring | 38 | 191 | 30 | 123 |
| 965 | Visual Communication | 15 | 190 | 71 | 141 |
| 965 | Image enhancement | 15 | 190 | 56 | 132 |
| 967 | Paleoclimatology | 6 | 189 | 763 | 789 |
| 967 | Project Management | 3 | 189 | 279 | 307 |
| 967 | Bioremediation | 10 | 189 | 277 | 551 |
| 967 | Longevity | 11 | 189 | 27 | 89 |
| 971 | Genetic testing | 20 | 188 | 23 | 60 |
| 971 | Smoking | 9 | 188 | 357 | 504 |
| 971 | Chemical processes | 18 | 188 | 118 | 260 |
| 974 | Microfluidics | 6 | 187 | 120 | 118 |
| 974 | income | 2 | 187 | 199 | 86 |
| 974 | Input-output analysis | 2 | 187 | 294 | 128 |
| 974 | Wealth | 2 | 187 | 199 | 86 |
| 978 | Infection control | 7 | 186 | 120 | 155 |
| 978 | local government | 7 | 186 | 192 | 209 |
| 980 | Risk | 11 | 185 | 207 | 342 |
| 981 | Archaeology | 29 | 184 | 371 | 683 |
| 981 | soil management | 3 | 184 | 527 | 437 |
| 981 | Radio wave propagation | 18 | 184 | 203 | 311 |
| 981 | innovation | 5 | 184 | 444 | 608 |
| 981 | tillage | 3 | 184 | 393 | 372 |
| 986 | Probability | 14 | 183 | 187 | 334 |
| 986 | Morphogenesis | 7 | 183 | 10 | 34 |
| 986 | Organogenesis | 7 | 183 | 6 | 25 |
| 986 | Meteorites | 5 | 183 | 639 | 730 |
| 990 | Telecommunications | 9 | 182 | 317 | 280 |
| 991 | Gene expression | 10 | 179 | 76 | 181 |
| 991 | Superconductivity | 16 | 179 | 129 | 186 |
| 991 | labor | 3 | 179 | 327 | 170 |
| 991 | Protein engineering | 8 | 179 | 91 | 142 |
| 991 | molecular design | 8 | 179 | 106 | 151 |
| 996 | Psychosomatic Medicine | 6 | 178 | 475 | 543 |
| 996 | radioactive waste | 4 | 178 | 676 | 869 |
| 996 | industrial waste | 4 | 178 | 704 | 869 |
| 999 | Cardiovascular Pharmacology | 5 | 177 | 136 | 119 |
| 1000 | Language Disorders | 10 | 176 | 409 | 502 |