| 1 | Chemistry | 2,494 | 123.0K | 123 | 180 |
| 2 | Physics | 1,700 | 53.5K | 268 | 622 |
| 3 | Nanotechnology | 914 | 52.5K | 97 | 119 |
| 4 | Materials | 960 | 43.2K | 170 | 180 |
| 5 | Biochemistry | 1,305 | 36.8K | 323 | 468 |
| 6 | Biology | 660 | 31.9K | 531 | 854 |
| 7 | Science | 711 | 31.0K | 507 | 898 |
| 8 | Catalysis | 635 | 29.6K | 82 | 95 |
| 9 | Nuclear Physics | 1,441 | 29.0K | 156 | 301 |
| 10 | Analytical Chemistry | 835 | 27.6K | 43 | 54 |
| 11 | Molecular Biology | 826 | 24.5K | 319 | 622 |
| 12 | Medicine | 950 | 22.4K | 396 | 792 |
| 13 | Chemical Engineering | 452 | 22.2K | 188 | 170 |
| 14 | Geophysics | 541 | 22.2K | 204 | 186 |
| 15 | Materials Science | 473 | 22.1K | 200 | 192 |
| 16 | Pollution | 493 | 21.9K | 160 | 239 |
| 17 | Biocompatible Materials | 435 | 21.4K | 122 | 154 |
| 18 | nanoscience | 310 | 21.0K | 93 | 101 |
| 19 | Ecology | 605 | 20.9K | 232 | 455 |
| 20 | Organic Chemistry | 705 | 20.1K | 17 | 26 |
| 21 | Botany | 436 | 17.7K | 169 | 221 |
| 22 | Nanostructured Materials | 377 | 17.4K | 100 | 96 |
| 23 | Optical materials | 326 | 15.7K | 75 | 96 |
| 24 | Biochemical Engineering | 292 | 15.5K | 101 | 201 |
| 25 | Biotechnology | 385 | 14.4K | 280 | 440 |
| 26 | Mathematics | 886 | 14.4K | 156 | 139 |
| 27 | Environment | 266 | 14.1K | 297 | 437 |
| 28 | Atmospheric Physics | 318 | 14.1K | 71 | 93 |
| 29 | environmental pollution | 354 | 14.0K | 132 | 167 |
| 30 | Pharmacology | 465 | 12.8K | 296 | 375 |
| 31 | China | 695 | 12.7K | 43 | 41 |
| 32 | Meteorology | 551 | 12.5K | 64 | 165 |
| 33 | Electrochemistry | 330 | 12.2K | 227 | 147 |
| 34 | Research | 466 | 11.4K | 560 | 804 |
| 35 | Quantum Gravity | 436 | 11.0K | 132 | 238 |
| 36 | Bioengineering | 225 | 10.4K | 250 | 383 |
| 37 | Environmental Health | 371 | 10.4K | 199 | 409 |
| 38 | Polymers | 358 | 10.3K | 304 | 345 |
| 39 | Bioorganic chemistry | 329 | 10.1K | 40 | 71 |
| 40 | Environmental Management | 240 | 9.9K | 34 | 53 |
| 41 | Geology | 282 | 9.8K | 203 | 218 |
| 42 | Surface Chemistry | 325 | 9.7K | 158 | 216 |
| 43 | Colloids | 311 | 9.5K | 173 | 241 |
| 44 | Climatology | 368 | 9.2K | 44 | 137 |
| 45 | Biophysics | 326 | 8.9K | 512 | 547 |
| 46 | Plant physiology | 219 | 8.9K | 64 | 122 |
| 47 | Statistical physics | 411 | 8.5K | 199 | 301 |
| 48 | Pharmaceutical Chemistry | 318 | 8.4K | 157 | 284 |
| 49 | mathematical analysis | 321 | 8.2K | 21 | 7 |
| 50 | Biomedical Engineering | 350 | 8.2K | 158 | 276 |
| 51 | Earth Sciences | 315 | 8.1K | 80 | 217 |
| 52 | polymerization | 264 | 8.0K | 323 | 322 |
| 53 | Microbiology | 303 | 8.0K | 606 | 1054 |
| 54 | Paleoclimatology | 204 | 7.9K | 12 | 20 |
| 55 | Soil Science | 243 | 7.6K | 49 | 68 |
| 56 | Atmospheric Chemistry | 115 | 7.6K | 130 | 137 |
| 57 | soil microbiology | 178 | 7.4K | 41 | 96 |
| 58 | Environmental monitoring | 227 | 7.4K | 111 | 226 |
| 59 | Geomorphology | 238 | 7.1K | 9 | 26 |
| 60 | Hydrology | 249 | 7.0K | 80 | 150 |
| 61 | Spectrum analysis | 304 | 6.6K | 370 | 721 |
| 62 | Environmental Geology | 259 | 6.5K | 9 | 13 |
| 63 | Plants | 176 | 6.5K | 84 | 221 |
| 64 | Nanoparticles | 130 | 6.4K | 92 | 89 |
| 65 | Planets | 144 | 6.4K | 225 | 242 |
| 66 | Nanostructures | 126 | 6.3K | 72 | 128 |
| 67 | Solid State Physics | 395 | 6.3K | 339 | 566 |
| 68 | actuators | 138 | 6.1K | 90 | 78 |
| 68 | transducers | 138 | 6.1K | 90 | 78 |
| 70 | Paleoecology | 159 | 5.8K | 15 | 22 |
| 71 | Green Chemistry | 112 | 5.8K | 102 | 114 |
| 72 | Paleogeography | 160 | 5.7K | 12 | 19 |
| 73 | Cytology | 199 | 5.5K | 510 | 1063 |
| 74 | Energy Policy | 71 | 5.4K | 311 | 207 |
| 75 | Renewable Energy Sources | 64 | 5.4K | 298 | 296 |
| 76 | Clinical Chemistry | 125 | 5.3K | 282 | 255 |
| 77 | Carbon | 70 | 5.3K | 109 | 85 |
| 78 | Pharmaceutical Technology | 172 | 5.3K | 14 | 31 |
| 79 | Plant Ecology | 161 | 5.3K | 59 | 133 |
| 80 | Nonlinear functional analysis | 190 | 5.3K | 4 | 5 |
| 81 | Toxicology | 190 | 5.2K | 425 | 577 |
| 82 | Condensed Matter | 376 | 5.1K | 347 | 647 |
| 83 | Magnetic Materials | 156 | 5.0K | 45 | 54 |
| 84 | plant molecular biology | 89 | 5.0K | 171 | 270 |
| 85 | Cell Biology | 182 | 4.8K | 496 | 1137 |
| 86 | Energy Conversion | 61 | 4.8K | 132 | 201 |
| 87 | Natural history | 37 | 4.8K | 1301 | 1860 |
| 88 | Astronomy | 77 | 4.8K | 881 | 787 |
| 89 | Genomics | 125 | 4.7K | 306 | 335 |
| 90 | catalytic activity | 141 | 4.6K | 5 | 11 |
| 91 | Physical organic chemistry | 169 | 4.6K | 13 | 12 |
| 92 | Plant diseases | 180 | 4.6K | 112 | 130 |
| 93 | Agricultural Chemistry | 99 | 4.5K | 246 | 174 |
| 94 | Environmental Engineering | 124 | 4.5K | 327 | 479 |
| 95 | Biodiversity conservation | 64 | 4.4K | 253 | 351 |
| 96 | Geochemistry | 115 | 4.4K | 295 | 319 |
| 97 | Geography | 105 | 4.4K | 250 | 164 |
| 98 | Nonlinear Dynamics | 163 | 4.4K | 182 | 208 |
| 99 | Functional Analysis | 132 | 4.2K | 18 | 12 |
| 100 | Signal Transduction | 33 | 4.2K | 278 | 103 |
| 101 | Climate change | 42 | 4.2K | 189 | 295 |
| 101 | Eutrophication | 42 | 4.2K | 183 | 292 |
| 103 | Environmental Policy | 111 | 4.1K | 254 | 419 |
| 104 | miniaturization | 60 | 3.8K | 300 | 332 |
| 105 | Biomass Energy | 58 | 3.7K | 400 | 326 |
| 106 | Molecular Spectroscopy | 142 | 3.7K | 38 | 45 |
| 107 | Differential Equations | 115 | 3.6K | 19 | 13 |
| 108 | Soil biology | 81 | 3.6K | 66 | 140 |
| 109 | Plant cells | 63 | 3.6K | 210 | 369 |
| 110 | environmental indicators | 107 | 3.6K | 15 | 30 |
| 111 | Microelectronics | 47 | 3.5K | 396 | 310 |
| 112 | environmental protection | 113 | 3.4K | 241 | 401 |
| 113 | Radiation | 191 | 3.4K | 44 | 101 |
| 114 | Cancer | 124 | 3.3K | 614 | 941 |
| 115 | Engineering Mathematics | 236 | 3.3K | 55 | 92 |
| 116 | Land use | 97 | 3.3K | 20 | 29 |
| 117 | Engineering Geology | 100 | 3.2K | 99 | 125 |
| 118 | Molecular Genetics | 63 | 3.2K | 310 | 317 |
| 119 | Physiology | 123 | 3.2K | 681 | 885 |
| 120 | Biosensors | 46 | 3.2K | 154 | 138 |
| 121 | Molecular structure | 156 | 3.1K | 71 | 304 |
| 122 | soil conservation | 104 | 3.0K | 12 | 15 |
| 123 | Environmental Chemistry | 45 | 2.9K | 348 | 378 |
| 124 | Composite Materials | 78 | 2.9K | 428 | 479 |
| 125 | free radicals | 51 | 2.9K | 228 | 218 |
| 126 | Pharmacognosy | 110 | 2.9K | 95 | 181 |
| 127 | Chromatographic analysis | 187 | 2.8K | 31 | 64 |
| 128 | Solid State Chemistry | 115 | 2.8K | 233 | 212 |
| 128 | Bioelectronics | 36 | 2.8K | 163 | 130 |
| 130 | Energy Storage | 49 | 2.8K | 149 | 121 |
| 131 | biological factors | 121 | 2.8K | 44 | 153 |
| 132 | Virology | 65 | 2.7K | 761 | 1215 |
| 133 | Technology | 141 | 2.7K | 403 | 566 |
| 134 | Neurology | 120 | 2.7K | 1176 | 1747 |
| 135 | natural products | 139 | 2.7K | 53 | 129 |
| 136 | Optics | 209 | 2.7K | 484 | 703 |
| 137 | Luminescence | 107 | 2.7K | 27 | 22 |
| 138 | Environmental Toxicology | 107 | 2.7K | 130 | 347 |
| 139 | health planning | 154 | 2.6K | 48 | 97 |
| 140 | fuel cells | 50 | 2.6K | 176 | 254 |
| 141 | Radiochemistry | 241 | 2.6K | 18 | 34 |
| 142 | energy conservation | 33 | 2.5K | 390 | 280 |
| 143 | Genetics | 95 | 2.5K | 705 | 1256 |
| 144 | Nutrition | 80 | 2.5K | 835 | 972 |
| 144 | atmosphere | 149 | 2.5K | 14 | 38 |
| 146 | Water | 64 | 2.5K | 436 | 602 |
| 147 | land degradation | 84 | 2.5K | 5 | 6 |
| 147 | degradation | 84 | 2.5K | 5 | 6 |
| 149 | Microbial Ecology | 71 | 2.4K | 367 | 627 |
| 150 | Environmental pollutants | 107 | 2.4K | 126 | 263 |
| 151 | Epidemiology | 87 | 2.4K | 662 | 810 |
| 152 | Numerical Analysis | 122 | 2.3K | 126 | 179 |
| 153 | Public Health | 95 | 2.3K | 1036 | 1307 |
| 154 | Neural circuitry | 69 | 2.3K | 154 | 206 |
| 155 | Photonics | 91 | 2.3K | 176 | 398 |
| 156 | Sustainable Engineering | 60 | 2.3K | 176 | 217 |
| 157 | Marine Meteorology | 99 | 2.3K | 36 | 67 |
| 158 | Nuclear Chemistry | 205 | 2.2K | 22 | 40 |
| 159 | biological evolution | 46 | 2.2K | 497 | 614 |
| 160 | Artificial Intelligence | 73 | 2.2K | 648 | 566 |
| 161 | Population Genetics | 42 | 2.2K | 237 | 270 |
| 162 | Bioinorganic chemistry | 38 | 2.2K | 276 | 107 |
| 163 | Semiconductors | 109 | 2.1K | 135 | 136 |
| 164 | Energy Harvesting | 14 | 2.1K | 163 | 102 |
| 165 | Molecular ecology | 35 | 2.1K | 250 | 292 |
| 166 | Cosmochemistry | 35 | 2.1K | 135 | 87 |
| 167 | Electrophoresis | 100 | 2.1K | 71 | 151 |
| 168 | Industrial Engineering | 59 | 2.0K | 258 | 223 |
| 169 | Oncology | 62 | 2.0K | 388 | 1013 |
| 170 | Chromatography | 130 | 2.0K | 42 | 91 |
| 171 | pigments | 58 | 2.0K | 46 | 22 |
| 172 | plant communities | 51 | 2.0K | 143 | 236 |
| 173 | Electronics | 120 | 2.0K | 496 | 546 |
| 174 | Liver diseases | 35 | 2.0K | 467 | 579 |
| 175 | Asia | 117 | 2.0K | 143 | 169 |
| 176 | energy resources | 23 | 1.9K | 386 | 332 |
| 177 | Plant Genetics | 27 | 1.9K | 136 | 126 |
| 178 | Biodiversity | 84 | 1.9K | 200 | 485 |
| 179 | Soil ecology | 60 | 1.9K | 39 | 80 |
| 180 | sanitation | 43 | 1.9K | 361 | 565 |
| 181 | Molecular evolution | 45 | 1.8K | 294 | 357 |
| 182 | Photochemistry | 56 | 1.7K | 162 | 172 |
| 183 | wind erosion | 26 | 1.7K | 3 | 2 |
| 184 | Mineralogy | 36 | 1.7K | 397 | 293 |
| 185 | Neurochemistry | 70 | 1.7K | 485 | 739 |
| 186 | Engineering | 110 | 1.7K | 442 | 555 |
| 187 | pollutants | 69 | 1.7K | 173 | 347 |
| 188 | Medicinal plants | 66 | 1.6K | 104 | 225 |
| 188 | Cell death | 31 | 1.6K | 313 | 403 |
| 190 | Organometallic chemistry | 88 | 1.6K | 106 | 128 |
| 191 | Petrology | 33 | 1.6K | 292 | 258 |
| 192 | synthesis | 147 | 1.6K | 7 | 18 |
| 193 | Mathematical Physics | 109 | 1.6K | 421 | 577 |
| 194 | Agriculture | 79 | 1.6K | 247 | 403 |
| 195 | Immunotherapy | 60 | 1.6K | 250 | 591 |
| 196 | Photobiology | 49 | 1.6K | 86 | 94 |
| 197 | Chronic diseases | 40 | 1.5K | 121 | 259 |
| 198 | Paleontology | 80 | 1.5K | 164 | 213 |
| 199 | clay | 39 | 1.5K | 56 | 77 |
| 200 | Tribology | 43 | 1.5K | 176 | 133 |
| 201 | Food | 51 | 1.5K | 614 | 713 |
| 201 | environmental exposure | 57 | 1.5K | 186 | 289 |
| 203 | Biogeochemistry | 41 | 1.5K | 253 | 371 |
| 204 | System analysis | 87 | 1.5K | 205 | 346 |
| 205 | Plant tissue culture | 48 | 1.5K | 48 | 57 |
| 206 | soil management | 35 | 1.5K | 62 | 71 |
| 207 | cryosphere | 27 | 1.5K | 107 | 101 |
| 208 | Plant cell culture | 45 | 1.4K | 36 | 57 |
| 209 | management | 44 | 1.4K | 893 | 998 |
| 210 | Ceramics | 53 | 1.4K | 242 | 265 |
| 211 | Physical Chemistry | 44 | 1.4K | 558 | 646 |
| 212 | tillage | 32 | 1.4K | 44 | 58 |
| 213 | cytokines | 58 | 1.4K | 106 | 194 |
| 214 | Water pollution | 40 | 1.4K | 706 | 843 |
| 215 | Forest Ecology | 43 | 1.4K | 166 | 212 |
| 216 | Systems Engineering | 32 | 1.4K | 491 | 225 |
| 217 | bioclimatology | 78 | 1.4K | 17 | 70 |
| 218 | Information Systems | 43 | 1.4K | 131 | 156 |
| 219 | Immunology | 67 | 1.4K | 1073 | 1706 |
| 220 | Human genetics | 9 | 1.4K | 1801 | 1950 |
| 221 | Operations Research | 18 | 1.4K | 1026 | 514 |
| 222 | Metabolism | 43 | 1.3K | 965 | 1277 |
| 223 | Fractals | 48 | 1.3K | 94 | 94 |
| 224 | Bioremediation | 26 | 1.3K | 60 | 51 |
| 225 | Alternative Medicine | 62 | 1.3K | 176 | 217 |
| 226 | Radiation effects | 40 | 1.3K | 26 | 54 |
| 227 | Chemical analysis | 43 | 1.3K | 142 | 132 |
| 228 | Environmental Microbiology | 33 | 1.2K | 271 | 451 |
| 229 | Automation | 46 | 1.2K | 324 | 418 |
| 230 | complementary therapies | 60 | 1.2K | 187 | 225 |
| 231 | Plant hormones | 32 | 1.2K | 18 | 15 |
| 232 | Building Materials | 30 | 1.2K | 430 | 495 |
| 233 | Analytical Biochemistry | 57 | 1.2K | 156 | 329 |
| 234 | Glass | 55 | 1.2K | 180 | 277 |
| 235 | Solitons | 45 | 1.2K | 67 | 80 |
| 235 | Chaos | 45 | 1.2K | 67 | 80 |
| 237 | Computational Biology | 58 | 1.2K | 500 | 918 |
| 238 | pottery | 48 | 1.2K | 197 | 283 |
| 239 | Immunopharmacology | 52 | 1.2K | 91 | 133 |
| 240 | Surface-Active Agents | 40 | 1.2K | 84 | 160 |
| 240 | Surface properties | 40 | 1.2K | 91 | 176 |
| 242 | Zeolites | 22 | 1.1K | 218 | 157 |
| 243 | Industrial Microbiology | 43 | 1.1K | 298 | 577 |
| 243 | Drug design | 56 | 1.1K | 139 | 354 |
| 243 | Phylogeny | 22 | 1.1K | 239 | 213 |
| 246 | Diet | 21 | 1.1K | 925 | 808 |
| 247 | Aging | 42 | 1.1K | 839 | 910 |
| 248 | Chromosome mapping | 38 | 1.1K | 414 | 625 |
| 248 | gene mapping | 38 | 1.1K | 479 | 762 |
| 250 | Plant genetic engineering | 19 | 1.1K | 305 | 258 |
| 251 | Particle Physics | 48 | 1.1K | 57 | 73 |
| 252 | Metallurgy | 46 | 1.1K | 620 | 676 |
| 253 | natural disasters | 39 | 1.1K | 118 | 210 |
| 254 | Metals | 47 | 1.1K | 556 | 641 |
| 255 | Electrochemical Analysis | 39 | 1.1K | 276 | 286 |
| 256 | drugs | 62 | 1.1K | 306 | 531 |
| 257 | Radioisotopes | 68 | 1.1K | 81 | 93 |
| 258 | Signal Processing | 50 | 1.1K | 306 | 364 |
| 259 | Bioinformatics | 41 | 1.0K | 474 | 787 |
| 260 | Soft Condensed Matter | 44 | 1.0K | 196 | 275 |
| 261 | Pathology | 27 | 1.0K | 979 | 1026 |
| 262 | Astrophysics | 87 | 1.0K | 986 | 1583 |
| 263 | Cell differentiation | 20 | 1.0K | 833 | 963 |
| 264 | water supply | 29 | 1.0K | 257 | 335 |
| 265 | Microorganisms | 33 | 975 | 227 | 497 |
| 266 | Biogeography | 17 | 951 | 394 | 453 |
| 267 | Information Science | 25 | 948 | 769 | 698 |
| 268 | radiative transfer | 29 | 939 | 113 | 102 |
| 269 | Structural Engineering | 32 | 934 | 442 | 367 |
| 270 | Environmental Law | 16 | 931 | 406 | 485 |
| 271 | Biodegradation | 22 | 899 | 70 | 83 |
| 272 | Forest Management | 22 | 895 | 310 | 294 |
| 273 | Documentation | 12 | 890 | 108 | 49 |
| 274 | proteins | 55 | 882 | 397 | 737 |
| 275 | Multimedia Systems | 39 | 873 | 234 | 179 |
| 276 | Ecological Engineering | 17 | 871 | 114 | 99 |
| 277 | Image Processing | 41 | 854 | 383 | 624 |
| 278 | Diabetes | 37 | 851 | 727 | 1264 |
| 279 | Brain | 35 | 850 | 1019 | 1286 |
| 280 | Recycling | 14 | 847 | 170 | 217 |
| 281 | energy development | 9 | 845 | 389 | 343 |
| 282 | Membranes | 13 | 844 | 997 | 774 |
| 283 | Orthopedics | 40 | 836 | 447 | 592 |
| 284 | peptides | 52 | 834 | 34 | 58 |
| 285 | Soil Mechanics | 29 | 829 | 322 | 367 |
| 286 | lasers | 45 | 825 | 303 | 310 |
| 287 | Genetic engineering | 56 | 813 | 310 | 937 |
| 288 | Agronomy | 8 | 810 | 274 | 189 |
| 289 | Endocrinology | 27 | 804 | 1399 | 1768 |
| 290 | Agricultural Science | 17 | 784 | 64 | 105 |
| 291 | Diabetes mellitus | 33 | 774 | 731 | 1304 |
| 292 | Hematology | 37 | 772 | 1548 | 1629 |
| 293 | Molecular Pharmacology | 24 | 760 | 163 | 272 |
| 294 | Thermodynamics | 63 | 749 | 85 | 144 |
| 294 | Thermochemistry | 62 | 749 | 36 | 93 |
| 296 | Superconductors | 32 | 746 | 131 | 116 |
| 297 | Elementary particles | 3 | 744 | 185 | 59 |
| 298 | Diagnostic Imaging | 40 | 734 | 493 | 767 |
| 298 | Landslides | 17 | 734 | 49 | 64 |
| 300 | Data Mining | 25 | 729 | 319 | 572 |
| 301 | Pharmacokinetics | 23 | 728 | 187 | 219 |
| 302 | Japan | 36 | 725 | 530 | 383 |
| 303 | Statistics | 49 | 724 | 711 | 877 |
| 304 | Pharmacy | 36 | 721 | 581 | 775 |
| 304 | Sustainable Development | 39 | 721 | 284 | 724 |
| 306 | Clinical Pharmacology | 27 | 720 | 447 | 483 |
| 307 | Mountains | 56 | 719 | 12 | 13 |
| 308 | Orthopedic Surgery | 34 | 708 | 139 | 242 |
| 309 | Wireless Communication Systems | 18 | 704 | 870 | 436 |
| 310 | Medical Oncology | 36 | 702 | 717 | 963 |
| 311 | Plant Biotechnology | 13 | 699 | 325 | 230 |
| 312 | Hypertension | 26 | 692 | 646 | 1156 |
| 313 | Fluorescence | 40 | 688 | 8 | 11 |
| 314 | Nuclear Engineering | 104 | 686 | 145 | 251 |
| 314 | Recombinant DNA | 45 | 686 | 192 | 497 |
| 316 | Psychiatry | 38 | 684 | 1627 | 2345 |
| 317 | Geriatrics | 22 | 682 | 1366 | 1221 |
| 318 | Immunity | 21 | 681 | 905 | 1573 |
| 319 | Evidence-Based Medicine | 39 | 676 | 168 | 199 |
| 320 | Cell cycle | 8 | 669 | 153 | 58 |
| 320 | cell proliferation | 8 | 669 | 174 | 59 |
| 320 | cell physiology | 18 | 669 | 685 | 922 |
| 323 | biopolymers | 30 | 664 | 311 | 436 |
| 324 | Neurophysiology | 37 | 662 | 1066 | 1743 |
| 325 | Medical Microbiology | 21 | 661 | 1101 | 1463 |
| 326 | Human-Computer Interaction | 17 | 657 | 485 | 374 |
| 327 | Europe | 19 | 654 | 1530 | 1107 |
| 328 | Nanochemistry | 42 | 642 | 92 | 186 |
| 329 | Diagnosis | 17 | 640 | 140 | 66 |
| 330 | Physical Geography | 51 | 634 | 29 | 93 |
| 331 | Medical Laboratory Science | 30 | 626 | 553 | 948 |
| 331 | data collection | 19 | 626 | 227 | 451 |
| 333 | Superconductivity | 18 | 625 | 156 | 99 |
| 334 | Organometallic compounds | 26 | 622 | 354 | 413 |
| 335 | Organic Geochemistry | 18 | 610 | 103 | 158 |
| 336 | Algorithms | 44 | 608 | 28 | 105 |
| 337 | Molecules | 54 | 606 | 289 | 541 |
| 338 | Developmental Biology | 22 | 590 | 908 | 1357 |
| 339 | Evolution | 35 | 588 | 541 | 1068 |
| 340 | Crystal growth | 19 | 587 | 320 | 307 |
| 341 | atmospheric models | 19 | 586 | 280 | 394 |
| 342 | Oxidative stress | 26 | 581 | 200 | 545 |
| 343 | Geodynamics | 17 | 571 | 357 | 381 |
| 344 | Psychology | 33 | 560 | 1810 | 2433 |
| 345 | Cognitive Science | 9 | 557 | 896 | 694 |
| 346 | Mobile Computing | 11 | 550 | 503 | 210 |
| 347 | Urology | 33 | 544 | 718 | 1046 |
| 348 | Herbal medicine | 20 | 541 | 134 | 206 |
| 349 | Drug delivery systems | 32 | 532 | 291 | 791 |
| 350 | Ore deposits | 15 | 527 | 193 | 180 |
| 351 | Gastrointestinal diseases | 25 | 524 | 101 | 132 |
| 352 | Animal Nutrition | 23 | 519 | 160 | 171 |
| 353 | food technology | 25 | 514 | 890 | 1263 |
| 354 | soil pollution | 22 | 505 | 55 | 82 |
| 355 | Inflammation | 25 | 504 | 285 | 623 |
| 355 | Informatics | 22 | 504 | 164 | 334 |
| 357 | toxicity testing | 28 | 503 | 96 | 197 |
| 358 | ecosystem | 19 | 501 | 501 | 812 |
| 359 | United States | 20 | 500 | 2597 | 2487 |
| 360 | Cosmology | 73 | 494 | 152 | 458 |
| 361 | Nuclear Energy | 78 | 485 | 150 | 312 |
| 362 | Solar Energy | 20 | 482 | 528 | 833 |
| 362 | Drug discovery | 2 | 482 | 441 | 61 |
| 364 | Zoology | 37 | 477 | 815 | 1086 |
| 364 | Neurobiology | 16 | 477 | 1004 | 1358 |
| 366 | Cybernetics | 11 | 476 | 711 | 511 |
| 367 | Molecular cloning | 35 | 474 | 242 | 639 |
| 367 | Genetic recombination | 35 | 474 | 232 | 627 |
| 369 | Water quality management | 18 | 471 | 679 | 607 |
| 370 | Systems Biology | 30 | 467 | 343 | 686 |
| 371 | Phytochemistry | 5 | 466 | 155 | 31 |
| 371 | Phytoremediation | 5 | 466 | 155 | 31 |
| 371 | environmental remediation | 5 | 466 | 206 | 37 |
| 371 | Bioreactors | 5 | 466 | 155 | 31 |
| 375 | Oncogenes | 8 | 465 | 934 | 1068 |
| 375 | Animal genetics | 17 | 465 | 206 | 211 |
| 377 | Soil fertility | 15 | 463 | 95 | 170 |
| 378 | Archaeology | 26 | 458 | 455 | 478 |
| 379 | drug evaluation | 24 | 451 | 303 | 451 |
| 380 | Extreme environments | 7 | 446 | 101 | 66 |
| 381 | Civil Engineering | 32 | 441 | 354 | 276 |
| 382 | Electrical Engineering | 35 | 440 | 1193 | 981 |
| 383 | Reproduction | 30 | 437 | 850 | 1284 |
| 384 | Metabolic diseases | 19 | 436 | 1290 | 1950 |
| 385 | Remote Sensing | 20 | 434 | 459 | 368 |
| 386 | mass transfer | 22 | 431 | 614 | 830 |
| 387 | Cardiovascular diseases | 32 | 427 | 478 | 821 |
| 388 | Population | 11 | 425 | 502 | 391 |
| 389 | hazard mitigation | 16 | 423 | 239 | 329 |
| 390 | Rock Mechanics | 14 | 416 | 398 | 443 |
| 390 | Dynamics | 54 | 416 | 212 | 527 |
| 390 | infection | 17 | 416 | 768 | 1122 |
| 393 | Electromagnetism | 22 | 411 | 156 | 199 |
| 393 | genome | 15 | 411 | 790 | 1389 |
| 395 | Microbial Biotechnology | 12 | 406 | 317 | 327 |
| 396 | Plastics | 18 | 404 | 692 | 647 |
| 397 | Mycology | 15 | 400 | 818 | 940 |
| 397 | probabilities | 17 | 400 | 596 | 379 |
| 399 | Sustainable agriculture | 23 | 396 | 144 | 301 |
| 399 | Catalysts | 18 | 396 | 155 | 217 |
| 401 | dietary supplements | 14 | 395 | 208 | 299 |
| 401 | particles | 23 | 395 | 178 | 280 |
| 401 | pain | 18 | 395 | 626 | 944 |
| 404 | Fluid Mechanics | 18 | 390 | 787 | 789 |
| 404 | Biological Systems | 26 | 390 | 58 | 189 |
| 406 | Metallography | 19 | 388 | 218 | 293 |
| 407 | Parenteral nutrition | 11 | 387 | 652 | 716 |
| 408 | cell interaction | 23 | 385 | 311 | 697 |
| 409 | Pesticides | 12 | 380 | 232 | 167 |
| 410 | air quality management | 16 | 379 | 94 | 189 |
| 410 | Allergy | 3 | 379 | 1593 | 1238 |
| 412 | Microwaves | 28 | 378 | 317 | 227 |
| 413 | software | 9 | 375 | 489 | 445 |
| 414 | Antioxidants | 10 | 374 | 384 | 621 |
| 414 | Physical fitness | 3 | 374 | 1271 | 533 |
| 416 | rehabilitation | 14 | 373 | 1180 | 1240 |
| 417 | Obstetrics | 35 | 372 | 919 | 1537 |
| 418 | polar regions | 18 | 371 | 216 | 269 |
| 419 | Marine Geology | 12 | 369 | 253 | 249 |
| 419 | Petroleum Geology | 12 | 369 | 247 | 253 |
| 421 | Water chemistry | 4 | 367 | 241 | 47 |
| 422 | Medical genetics | 16 | 365 | 1796 | 2566 |
| 423 | Rural Development | 3 | 364 | 661 | 191 |
| 424 | Technological Innovations | 11 | 362 | 411 | 419 |
| 425 | Water quality | 3 | 361 | 204 | 32 |
| 425 | Oxidation-reduction | 6 | 361 | 650 | 740 |
| 427 | Hemodynamics | 4 | 360 | 691 | 536 |
| 428 | Geographic information systems | 21 | 358 | 234 | 274 |
| 429 | Cellular senescence | 21 | 352 | 130 | 420 |
| 430 | Algebra | 65 | 347 | 202 | 365 |
| 431 | Economic History | 32 | 343 | 1215 | 1502 |
| 432 | Social Sciences | 26 | 339 | 1301 | 1417 |
| 432 | Waste management | 16 | 339 | 492 | 503 |
| 432 | Minerals | 36 | 339 | 51 | 260 |
| 435 | solar power | 12 | 337 | 329 | 520 |
| 435 | Stem cells | 20 | 337 | 722 | 1245 |
| 435 | solar cells | 12 | 337 | 379 | 579 |
| 438 | Economics | 35 | 334 | 1587 | 2175 |
| 438 | Entropy | 17 | 334 | 275 | 243 |
| 438 | Fertilizers | 11 | 334 | 161 | 154 |
| 438 | Phytotherapy | 13 | 334 | 286 | 344 |
| 438 | Meteorites | 9 | 334 | 692 | 827 |
| 443 | Health Services Research | 22 | 333 | 597 | 933 |
| 444 | Computer-Aided Design | 23 | 329 | 290 | 532 |
| 445 | Enteral nutrition | 9 | 328 | 562 | 625 |
| 446 | Hydrogeology | 19 | 325 | 171 | 260 |
| 446 | Transportation | 8 | 325 | 1156 | 923 |
| 448 | nucleic acids | 17 | 324 | 904 | 1642 |
| 449 | Environmental Geochemistry | 35 | 323 | 17 | 131 |
| 450 | Health Policy | 21 | 322 | 920 | 1460 |
| 451 | Geobiology | 17 | 320 | 136 | 232 |
| 452 | Histology | 17 | 318 | 889 | 1347 |
| 452 | Computational Chemistry | 10 | 318 | 334 | 406 |
| 454 | Computer Vision | 4 | 316 | 1182 | 827 |
| 455 | Industrial Safety | 7 | 315 | 807 | 500 |
| 456 | Information Technology | 21 | 314 | 855 | 1107 |
| 457 | Computer Science | 21 | 313 | 689 | 763 |
| 458 | Imaging systems | 23 | 312 | 89 | 130 |
| 459 | Horticulture | 23 | 310 | 204 | 280 |
| 460 | Nuclear Medicine | 4 | 306 | 1205 | 685 |
| 461 | Molecular Imaging | 3 | 305 | 869 | 551 |
| 462 | Immunochemistry | 16 | 300 | 366 | 501 |
| 463 | Manufacturing Processes | 9 | 298 | 1576 | 1370 |
| 463 | behavioral medicine | 14 | 298 | 592 | 1029 |
| 463 | Simulation Methods | 18 | 298 | 201 | 280 |
| 466 | Heat Exchangers | 8 | 297 | 759 | 792 |
| 467 | Agricultural Ecology | 20 | 294 | 337 | 884 |
| 468 | Mental Disorders | 15 | 293 | 1793 | 2526 |
| 468 | drug therapy | 17 | 293 | 1306 | 1795 |
| 470 | Animal breeding | 16 | 292 | 336 | 401 |
| 471 | Sedimentary rocks | 10 | 290 | 287 | 335 |
| 471 | Sites | 12 | 290 | 231 | 396 |
| 473 | Neuropsychology | 14 | 289 | 1328 | 1665 |
| 473 | city planning | 16 | 289 | 676 | 820 |
| 475 | Biofilms | 5 | 285 | 60 | 67 |
| 475 | medical education | 10 | 285 | 1247 | 1030 |
| 477 | Behavior | 14 | 284 | 1844 | 2778 |
| 478 | Stochastic Processes | 18 | 282 | 255 | 317 |
| 478 | Paleobiology | 34 | 282 | 29 | 61 |
| 480 | Periglacial processes | 6 | 281 | 79 | 80 |
| 480 | Permafrost | 6 | 281 | 79 | 80 |
| 480 | Frozen ground | 6 | 281 | 82 | 80 |
| 483 | Mining Engineering | 2 | 280 | 825 | 278 |
| 484 | Wildlife conservation | 4 | 279 | 1242 | 1015 |
| 485 | Embryology | 15 | 278 | 888 | 1470 |
| 485 | Plant Morphology | 10 | 278 | 247 | 201 |
| 485 | viruses | 23 | 278 | 631 | 1435 |
| 488 | arthritis | 3 | 277 | 1607 | 1247 |
| 489 | Nervous system | 26 | 275 | 974 | 2235 |
| 490 | Raman spectroscopy | 14 | 274 | 262 | 380 |
| 491 | Quantum Chemistry | 9 | 271 | 539 | 322 |
| 492 | Public Policy | 7 | 270 | 1346 | 1119 |
| 492 | Chromosomes | 13 | 270 | 463 | 747 |
| 492 | Paleobotany | 6 | 270 | 91 | 71 |
| 492 | Vegetation dynamics | 6 | 270 | 88 | 68 |
| 496 | Ceramic materials | 16 | 268 | 528 | 707 |
| 497 | Mechanical Engineering | 18 | 267 | 1181 | 1116 |
| 498 | coal | 9 | 264 | 1039 | 1295 |
| 499 | Infections | 9 | 263 | 805 | 1168 |
| 500 | Fracture mechanics | 25 | 262 | 466 | 842 |
| 501 | Cell communication | 13 | 258 | 278 | 572 |
| 502 | Earthquake Engineering | 12 | 256 | 689 | 855 |
| 502 | Radiobiology | 21 | 256 | 892 | 1261 |
| 502 | livestock | 11 | 256 | 270 | 185 |
| 505 | Biopharmaceutics | 8 | 255 | 798 | 821 |
| 505 | Sleep Disorders | 16 | 255 | 899 | 1188 |
| 505 | Sleep | 16 | 255 | 908 | 1204 |
| 508 | DNS | 16 | 252 | 96 | 261 |
| 508 | Detectors | 19 | 252 | 196 | 226 |
| 508 | Genes | 16 | 252 | 409 | 717 |
| 511 | Animal husbandry | 11 | 251 | 171 | 126 |
| 511 | biomedicine | 13 | 251 | 286 | 431 |
| 513 | Lipids | 9 | 250 | 869 | 1168 |
| 514 | Sociology | 18 | 249 | 1321 | 1967 |
| 515 | Animal Behavior | 14 | 244 | 1009 | 1700 |
| 515 | Geomagnetism | 8 | 244 | 495 | 431 |
| 515 | protein | 14 | 244 | 614 | 948 |
| 515 | Light | 9 | 244 | 635 | 1089 |
| 515 | Agricultural systems | 7 | 244 | 192 | 269 |
| 520 | Water Purification | 12 | 243 | 485 | 529 |
| 520 | Hazardous waste | 8 | 243 | 533 | 849 |
| 522 | Virulence | 9 | 242 | 793 | 1441 |
| 522 | Structure-activity relationship | 23 | 242 | 28 | 220 |
| 522 | Developing countries | 15 | 242 | 1102 | 1542 |
| 522 | Digestive system diseases | 15 | 242 | 472 | 721 |
| 526 | Anatomy | 25 | 241 | 783 | 1571 |
| 526 | Nitric oxide | 4 | 241 | 306 | 129 |
| 528 | Geochemical Modeling | 5 | 239 | 231 | 225 |
| 528 | geological modeling | 5 | 239 | 394 | 271 |
| 528 | Fuzzy systems | 26 | 239 | 354 | 659 |
| 531 | computer networks | 21 | 238 | 904 | 1502 |
| 532 | Clinical Psychology | 8 | 236 | 1087 | 1342 |
| 533 | Therapeutics | 7 | 235 | 1520 | 1721 |
| 534 | Pediatrics | 11 | 232 | 1824 | 2532 |
| 534 | drug toxicity | 10 | 232 | 123 | 227 |
| 536 | vitamin C | 8 | 231 | 165 | 298 |
| 536 | vitamin E | 8 | 231 | 165 | 298 |
| 538 | Quality Control | 8 | 230 | 1165 | 1167 |
| 538 | Genetic therapy | 13 | 230 | 691 | 1221 |
| 540 | Bifurcation Theory | 23 | 229 | 109 | 237 |
| 541 | Friction | 9 | 226 | 24 | 58 |
| 541 | Parasitic Diseases | 18 | 226 | 937 | 1716 |
| 543 | Climate | 20 | 225 | 104 | 417 |
| 544 | Computer Graphics | 18 | 224 | 669 | 1023 |
| 545 | marketing | 10 | 223 | 1160 | 1378 |
| 546 | Immune system | 11 | 222 | 622 | 1396 |
| 546 | Bones | 6 | 222 | 845 | 845 |
| 548 | Health Information Management | 2 | 221 | 449 | 448 |
| 549 | Landscape Ecology | 8 | 220 | 246 | 370 |
| 550 | Medical Physics | 17 | 219 | 884 | 1272 |
| 550 | Mineral resources | 11 | 219 | 161 | 390 |
| 552 | DNA | 11 | 218 | 202 | 301 |
| 553 | Nanoelectronics | 12 | 216 | 410 | 328 |
| 554 | Genetic Toxicology | 6 | 215 | 296 | 414 |
| 555 | Nanobiotechnology | 7 | 213 | 191 | 397 |
| 556 | Ophthalmology | 13 | 212 | 1104 | 1506 |
| 556 | isomerism | 18 | 212 | 52 | 124 |
| 556 | body temperature | 10 | 212 | 155 | 207 |
| 556 | Chirality | 18 | 212 | 52 | 124 |
| 560 | Production Management | 6 | 211 | 846 | 1079 |
| 561 | Research Design | 20 | 210 | 402 | 980 |
| 562 | Humanities | 20 | 208 | 511 | 560 |
| 562 | Ethology | 12 | 208 | 859 | 1565 |
| 564 | biochemical markers | 20 | 207 | 151 | 431 |
| 565 | enzymes | 9 | 206 | 1025 | 1318 |
| 566 | Metallic Glasses | 5 | 205 | 358 | 308 |
| 567 | Plate Tectonics | 8 | 204 | 124 | 131 |
| 567 | radioactive waste | 4 | 204 | 728 | 889 |
| 567 | industrial waste | 4 | 204 | 767 | 890 |
| 567 | Birds | 28 | 204 | 366 | 671 |
| 571 | Logistics | 2 | 203 | 749 | 398 |
| 571 | Business Ethics | 2 | 203 | 1234 | 938 |
| 573 | Intelligent Transportation Systems | 6 | 202 | 541 | 434 |
| 573 | nuclear power | 32 | 202 | 112 | 185 |
| 575 | Statistical Mechanics | 44 | 201 | 174 | 505 |
| 575 | Genetic regulation | 7 | 201 | 928 | 1323 |
| 575 | Vaccines | 12 | 201 | 1105 | 1620 |
| 578 | Combinatorial analysis | 27 | 200 | 315 | 407 |
| 579 | economic policy | 15 | 199 | 1267 | 1307 |
| 580 | Andrology | 14 | 198 | 269 | 460 |
| 580 | animals | 20 | 198 | 396 | 681 |
| 580 | Entomology | 19 | 198 | 1128 | 1458 |
| 583 | Rheumatology | 7 | 194 | 1064 | 1256 |
| 583 | Nuclear Fusion | 23 | 194 | 238 | 376 |
| 583 | Reproductive health | 9 | 194 | 445 | 548 |
| 583 | Business | 9 | 194 | 1463 | 1822 |
| 587 | Integrative Medicine | 16 | 192 | 79 | 83 |
| 588 | Physical Therapy | 4 | 191 | 1456 | 1237 |
| 588 | carcinogens | 11 | 191 | 531 | 1008 |
| 588 | optical devices | 9 | 191 | 216 | 229 |
| 591 | Urban Policy | 10 | 190 | 330 | 602 |
| 592 | vascular diseases | 3 | 189 | 961 | 803 |
| 592 | brain mapping | 8 | 189 | 473 | 758 |
| 594 | weather | 15 | 188 | 133 | 399 |
| 595 | Telecommunication Systems | 13 | 185 | 752 | 913 |
| 596 | Microstructure | 8 | 184 | 479 | 326 |
| 597 | Process Control | 4 | 181 | 842 | 935 |
| 597 | Freeze-Drying | 5 | 181 | 394 | 228 |
| 597 | Hypothermia | 5 | 181 | 394 | 228 |
| 597 | Freeze Drying | 5 | 181 | 394 | 228 |
| 601 | Applied Mathematics | 35 | 180 | 95 | 133 |
| 601 | Drug targeting | 7 | 180 | 144 | 233 |
| 601 | Respiration | 11 | 180 | 980 | 1507 |
| 604 | Semigroups | 32 | 179 | 11 | 30 |
| 604 | Vocational guidance | 5 | 179 | 743 | 699 |
| 606 | Sedimentology | 5 | 178 | 505 | 476 |
| 606 | gastrointestinal tract | 1 | 178 | 685 | 322 |
| 608 | Combinatorial optimization | 23 | 177 | 46 | 120 |
| 609 | Marine Biology | 7 | 176 | 2095 | 2249 |
| 610 | Actuarial Science | 3 | 175 | 278 | 133 |
| 610 | Thin Films | 12 | 175 | 188 | 261 |
| 610 | insurance | 3 | 175 | 420 | 182 |
| 613 | Geriatric Psychiatry | 2 | 174 | 1762 | 998 |
| 613 | Long-Term Care | 4 | 174 | 551 | 575 |
| 613 | Long-term care facilities | 4 | 174 | 547 | 573 |
| 613 | Cellulose | 7 | 174 | 346 | 495 |
| 617 | Health Education | 5 | 173 | 1882 | 1496 |
| 617 | air quality | 12 | 173 | 21 | 84 |
| 617 | Grasslands | 12 | 173 | 21 | 20 |
| 620 | Surgery | 13 | 172 | 1374 | 2507 |
| 620 | infrared radiation | 40 | 172 | 47 | 249 |
| 622 | Structural design | 11 | 171 | 358 | 558 |
| 622 | Boundary Value Problems | 20 | 171 | 67 | 85 |
| 622 | Smart Materials | 10 | 171 | 478 | 623 |
| 622 | Pancreatic diseases | 5 | 171 | 505 | 270 |
| 626 | Magnetic Resonance Spectroscopy | 19 | 170 | 525 | 890 |
| 627 | Marine Pollution | 6 | 169 | 961 | 1209 |
| 627 | human behavior | 9 | 169 | 1675 | 2916 |
| 627 | Chemical industry | 14 | 169 | 615 | 813 |
| 630 | Crystallography | 40 | 168 | 398 | 865 |
| 631 | sustainability | 4 | 166 | 746 | 934 |
| 632 | Economic Development | 6 | 164 | 1415 | 1643 |
| 632 | Granular materials | 10 | 164 | 207 | 403 |
| 634 | Communication | 7 | 163 | 1552 | 1378 |
| 635 | vibration | 7 | 162 | 935 | 907 |
| 635 | Hematopoietic stem cell transplantation | 6 | 162 | 302 | 478 |
| 637 | Food additives | 11 | 158 | 611 | 1216 |
| 638 | symbiosis | 7 | 157 | 30 | 48 |
| 638 | preimplantation genetic diagnosis | 9 | 157 | 231 | 337 |
| 638 | embryo transfer | 9 | 157 | 248 | 353 |
| 638 | Quantum theory | 15 | 157 | 433 | 741 |
| 642 | Radiology | 15 | 156 | 876 | 1220 |
| 642 | Obesity | 10 | 156 | 1437 | 2354 |
| 642 | Autoimmune diseases | 6 | 156 | 511 | 714 |
| 645 | food handling | 4 | 155 | 872 | 927 |
| 645 | Cheminformatics | 7 | 155 | 167 | 426 |
| 647 | Tropical Medicine | 9 | 154 | 1296 | 1483 |
| 647 | fusion reactors | 19 | 154 | 174 | 219 |
| 649 | Breeding | 8 | 153 | 834 | 1121 |
| 650 | Radiation Oncology | 10 | 152 | 170 | 325 |
| 650 | Autoantibodies | 5 | 152 | 546 | 681 |
| 650 | Autoimmunity | 5 | 152 | 724 | 942 |
| 653 | Immunopathology | 7 | 151 | 1153 | 1510 |
| 653 | Social policy | 3 | 151 | 1200 | 619 |
| 655 | Nanophotonics | 6 | 148 | 185 | 307 |
| 655 | Thrombosis | 5 | 148 | 1147 | 1210 |
| 655 | Ornithology | 24 | 148 | 309 | 650 |
| 655 | Cardiovascular system | 5 | 148 | 1691 | 2352 |
| 655 | Freezing | 18 | 148 | 94 | 175 |
| 655 | Decision making | 15 | 148 | 616 | 1258 |
| 661 | Pharmacogenetics | 6 | 147 | 930 | 1228 |
| 662 | Primary health care | 12 | 146 | 970 | 1535 |
| 662 | India | 6 | 146 | 1447 | 573 |
| 664 | Health | 9 | 145 | 1659 | 2231 |
| 665 | Historic Preservation | 5 | 144 | 61 | 43 |
| 665 | Calculus of Variations | 17 | 144 | 140 | 267 |
| 665 | Microscopy | 12 | 144 | 870 | 1162 |
| 665 | pharmaceutical industry | 7 | 144 | 357 | 378 |
| 669 | Industrial Statistics | 4 | 143 | 159 | 46 |
| 669 | Diagnostic microbiology | 3 | 143 | 1721 | 2038 |
| 671 | Clinical Biochemistry | 2 | 141 | 2118 | 1263 |
| 671 | Medical Ethics | 3 | 141 | 1441 | 761 |
| 673 | global environmental change | 7 | 137 | 601 | 1073 |
| 674 | Interferons | 2 | 136 | 453 | 238 |
| 674 | Cytokine | 2 | 136 | 648 | 545 |
| 676 | Sports Medicine | 9 | 135 | 1917 | 2120 |
| 676 | Gene expression regulation | 7 | 135 | 749 | 1177 |
| 678 | International Finance | 6 | 134 | 1332 | 1406 |
| 678 | cell adhesion molecules | 7 | 134 | 284 | 563 |
| 680 | Social Change | 4 | 131 | 950 | 1227 |
| 680 | finance | 10 | 131 | 1492 | 1834 |
| 682 | Biochemical Genetics | 20 | 129 | 47 | 179 |
| 682 | East Asia | 11 | 129 | 241 | 264 |
| 684 | Emergency Medicine | 6 | 128 | 1502 | 1464 |
| 684 | biological monitoring | 7 | 128 | 269 | 488 |
| 686 | Biometrics | 11 | 127 | 662 | 1000 |
| 686 | Telecommunication | 8 | 127 | 1643 | 1616 |
| 688 | Parasitology | 14 | 126 | 1361 | 2312 |
| 689 | Infertility | 5 | 125 | 1132 | 1314 |
| 689 | Autonomous robots | 2 | 125 | 233 | 191 |
| 689 | fertility | 5 | 125 | 1206 | 1391 |
| 692 | Oral Medicine | 16 | 124 | 192 | 405 |
| 692 | Ocean-atmosphere interaction | 17 | 124 | 24 | 27 |
| 692 | nuclear magnetic resonance spectroscopy | 15 | 124 | 297 | 590 |
| 692 | irrigation | 4 | 124 | 313 | 223 |
| 692 | NMR | 15 | 124 | 141 | 338 |
| 692 | Nonlinear mechanics | 11 | 124 | 131 | 292 |
| 692 | magnetic resonance | 15 | 124 | 147 | 359 |
| 699 | epilepsy | 5 | 123 | 956 | 1021 |
| 699 | Cerebral cortex | 3 | 123 | 1123 | 1188 |
| 701 | Biomarkers | 9 | 122 | 146 | 273 |
| 701 | gene therapy | 12 | 122 | 616 | 1527 |
| 701 | Liquid chromatography | 18 | 122 | 99 | 238 |
| 704 | Medical Technology | 19 | 121 | 603 | 1949 |
| 705 | occupational diseases | 5 | 120 | 846 | 1084 |
| 706 | Bioenergetics | 6 | 119 | 659 | 997 |
| 706 | Learning | 7 | 119 | 995 | 1392 |
| 706 | amino acids | 7 | 119 | 317 | 643 |
| 709 | Animal Biotechnology | 16 | 116 | 27 | 142 |
| 709 | Clinical Immunology | 10 | 116 | 867 | 1503 |
| 709 | Animal ecology | 10 | 116 | 711 | 1201 |
| 709 | planning | 2 | 116 | 1115 | 522 |
| 709 | Economic planning | 2 | 116 | 704 | 415 |
| 714 | Neuroplasticity | 9 | 115 | 111 | 362 |
| 715 | Australia | 12 | 114 | 1045 | 1663 |
| 715 | Forest genetics | 5 | 114 | 225 | 213 |
| 717 | Optoelectronics | 14 | 112 | 176 | 249 |
| 717 | Artificial Organs | 7 | 112 | 533 | 568 |
| 719 | Neurosurgery | 10 | 111 | 786 | 1383 |
| 719 | carbon monoxide | 3 | 111 | 334 | 429 |
| 721 | Egypt | 7 | 109 | 226 | 512 |
| 722 | Nursing | 11 | 108 | 1109 | 1593 |
| 722 | Graph Theory | 19 | 108 | 231 | 400 |
| 722 | Intelligent Control Systems | 14 | 108 | 373 | 615 |
| 722 | Memory | 5 | 108 | 1964 | 2364 |
| 726 | Structural dynamics | 7 | 107 | 762 | 1245 |
| 726 | Biogeochemical cycles | 6 | 107 | 350 | 794 |
| 726 | Speech Perception | 1 | 107 | 497 | 232 |
| 726 | auditory perception | 1 | 107 | 643 | 305 |
| 726 | Chemical kinetics | 15 | 107 | 227 | 398 |
| 726 | Oral communication | 1 | 107 | 861 | 331 |
| 726 | Speech | 1 | 107 | 1719 | 964 |
| 733 | Glaciology | 5 | 106 | 175 | 221 |
| 733 | bioluminescence | 7 | 106 | 165 | 184 |
| 733 | glaciers | 5 | 106 | 165 | 220 |
| 733 | herbicides | 4 | 106 | 263 | 263 |
| 737 | Green Technology | 6 | 105 | 202 | 308 |
| 738 | Neurotoxicology | 2 | 104 | 887 | 742 |
| 738 | Cytogenetics | 7 | 104 | 1318 | 2346 |
| 740 | Sales management | 1 | 103 | 401 | 378 |
| 740 | selling | 1 | 103 | 401 | 378 |
| 742 | drug resistance | 3 | 102 | 892 | 896 |
| 742 | forest policy | 3 | 102 | 413 | 341 |
| 744 | Comparative Physiology | 5 | 101 | 732 | 908 |
| 744 | Regional Planning | 3 | 101 | 1837 | 1449 |
| 744 | Histochemistry | 8 | 101 | 767 | 1167 |
| 747 | Urban Planning | 5 | 100 | 296 | 437 |
| 747 | Human Geography | 6 | 100 | 841 | 937 |
| 747 | community development | 5 | 100 | 453 | 518 |
| 747 | Plant breeding | 5 | 100 | 741 | 882 |
| 747 | Housing | 5 | 100 | 353 | 514 |
| 747 | Psychophysiology | 5 | 100 | 2875 | 3538 |
| 753 | Soil dynamics | 5 | 99 | 376 | 487 |
| 753 | Hormones | 10 | 99 | 858 | 1756 |
| 753 | Mental illness | 6 | 99 | 1887 | 2877 |
| 753 | freshwater biology | 4 | 99 | 933 | 992 |
| 757 | Health promotion | 5 | 98 | 1464 | 1790 |
| 757 | Parkinson's disease | 1 | 98 | 535 | 318 |
| 757 | infrared technology | 33 | 98 | 21 | 82 |
| 760 | Geodesy | 10 | 97 | 332 | 745 |
| 761 | Philosophy of Mind | 1 | 96 | 510 | 179 |
| 761 | preventive medicine | 4 | 96 | 1503 | 1824 |
| 761 | moral development | 1 | 96 | 212 | 66 |
| 761 | animal diseases | 6 | 96 | 331 | 477 |
| 761 | internet | 10 | 96 | 615 | 1148 |
| 766 | Mechatronics | 5 | 95 | 581 | 636 |
| 767 | Porous materials | 5 | 93 | 614 | 607 |
| 768 | Plant Taxonomy | 2 | 92 | 632 | 446 |
| 768 | Pregnancy | 12 | 92 | 367 | 984 |
| 770 | Gerontology | 7 | 91 | 1615 | 1967 |
| 770 | Women's health | 7 | 91 | 973 | 1518 |
| 772 | Ecological Genetics | 14 | 90 | 192 | 571 |
| 773 | Multivariate Analysis | 6 | 88 | 357 | 475 |
| 773 | stability | 6 | 88 | 24 | 25 |
| 773 | Biomolecules | 6 | 88 | 297 | 745 |
| 773 | Multiple sclerosis | 5 | 88 | 533 | 513 |
| 777 | Respiratory system | 4 | 87 | 651 | 881 |
| 778 | Control Theory | 9 | 86 | 1145 | 1474 |
| 778 | Fiber Optics | 3 | 86 | 590 | 358 |
| 778 | Mechanics | 11 | 86 | 728 | 1121 |
| 778 | Fungi | 3 | 86 | 1244 | 1399 |
| 782 | Proteome | 4 | 85 | 1315 | 1863 |
| 783 | Kidney diseases | 2 | 84 | 1535 | 1369 |
| 784 | anesthesia | 11 | 83 | 239 | 413 |
| 784 | food industry | 9 | 83 | 241 | 613 |
| 786 | Tourism | 5 | 82 | 1398 | 1978 |
| 786 | Cell division | 6 | 82 | 369 | 800 |
| 786 | Atomic spectroscopy | 13 | 82 | 577 | 1228 |
| 789 | Agricultural Biotechnology | 5 | 81 | 230 | 134 |
| 789 | Combinatorial chemistry | 12 | 81 | 375 | 1325 |
| 791 | Investment analysis | 5 | 80 | 652 | 913 |
| 792 | Robotics | 8 | 79 | 1178 | 1812 |
| 792 | Municipal Engineering | 3 | 79 | 425 | 406 |
| 792 | Technology Assessment | 3 | 79 | 367 | 587 |
| 792 | glycoproteins | 2 | 79 | 738 | 729 |
| 792 | Glycoconjugates | 2 | 79 | 738 | 729 |
| 792 | Oligosaccharides | 2 | 79 | 362 | 345 |
| 792 | Parasites | 10 | 79 | 1000 | 1928 |
| 792 | glycolipids | 2 | 79 | 738 | 729 |
| 800 | hydrocolloids | 3 | 78 | 685 | 1114 |
| 801 | Conservation Biology | 16 | 77 | 462 | 1652 |
| 801 | Food Microbiology | 4 | 77 | 1303 | 2111 |
| 801 | sports injuries | 4 | 77 | 553 | 574 |
| 804 | Nephrology | 1 | 76 | 1247 | 1071 |
| 804 | embryonic development | 4 | 76 | 394 | 606 |
| 804 | Aerosols | 3 | 76 | 698 | 693 |
| 804 | Adaptive control systems | 1 | 76 | 1181 | 507 |
| 804 | particle beams | 7 | 76 | 139 | 210 |
| 809 | Econometrics | 15 | 75 | 626 | 1353 |
| 809 | international trade | 1 | 75 | 1463 | 745 |
| 811 | Metabolic syndrome | 4 | 74 | 168 | 294 |
| 811 | ovary | 2 | 74 | 323 | 254 |
| 811 | Plasma devices | 2 | 74 | 451 | 390 |
| 814 | Internet of Things | 8 | 73 | 395 | 765 |
| 814 | Infrared spectroscopy | 2 | 73 | 503 | 380 |
| 814 | Host-parasite interactions | 6 | 73 | 1101 | 2456 |
| 814 | Insects | 7 | 73 | 1182 | 1589 |
| 818 | Computational Linguistics | 5 | 72 | 420 | 393 |
| 818 | Depression | 3 | 72 | 411 | 801 |
| 818 | Customer service | 2 | 72 | 78 | 39 |
| 818 | Anxiety Disorders | 3 | 72 | 637 | 1044 |
| 818 | Anxiety | 3 | 72 | 632 | 1039 |
| 818 | World Wide Web | 3 | 72 | 462 | 312 |
| 824 | Bacteriology | 8 | 71 | 1497 | 3145 |
| 824 | starch | 3 | 71 | 447 | 422 |
| 824 | Emulsions | 10 | 71 | 120 | 283 |
| 824 | Quality of life | 6 | 71 | 1244 | 2340 |
| 824 | Evolution equations | 8 | 71 | 38 | 72 |
| 829 | Oceanography | 8 | 70 | 1410 | 2279 |
| 829 | radiocarbon dating | 5 | 70 | 47 | 68 |
| 829 | Mass Spectrometry | 10 | 70 | 771 | 1589 |
| 829 | Mutagenesis | 3 | 70 | 515 | 523 |
| 829 | Calorimetry | 3 | 70 | 1416 | 1242 |
| 829 | Korea | 4 | 70 | 325 | 256 |
| 829 | Thermal analysis | 3 | 70 | 1416 | 1242 |
| 836 | sedimentary basins | 4 | 69 | 182 | 323 |
| 836 | Measurement | 6 | 69 | 979 | 1527 |
| 836 | pain management | 4 | 69 | 701 | 922 |
| 836 | Randomized Controlled Trials | 10 | 69 | 726 | 1386 |
| 840 | Radio waves | 1 | 68 | 659 | 282 |
| 840 | Radio | 1 | 68 | 1650 | 744 |
| 840 | mathematical concepts | 3 | 68 | 442 | 354 |
| 843 | Dermatology | 7 | 67 | 1590 | 2327 |
| 843 | Cartography | 6 | 67 | 352 | 378 |
| 843 | Animal health | 4 | 67 | 440 | 375 |
| 843 | Antenna Arrays | 3 | 67 | 154 | 101 |
| 843 | Ocean Engineering | 4 | 67 | 1641 | 2092 |
| 843 | neuronal plasticity | 4 | 67 | 239 | 495 |
| 843 | cloning | 1 | 67 | 1407 | 1421 |
| 850 | Enzyme inhibitors | 4 | 66 | 319 | 473 |
| 850 | Functional foods | 5 | 66 | 265 | 569 |
| 850 | disease vectors | 7 | 66 | 677 | 1437 |
| 853 | Education | 4 | 65 | 4363 | 3776 |
| 853 | Substance Abuse | 3 | 65 | 1820 | 1965 |
| 855 | Adolescent Medicine | 3 | 64 | 793 | 1403 |
| 855 | Multiphase Flow | 5 | 64 | 285 | 546 |
| 855 | food contamination | 8 | 64 | 615 | 1299 |
| 855 | Probiotics | 4 | 64 | 121 | 266 |
| 855 | Ethnology | 8 | 64 | 1014 | 1418 |
| 855 | silicon | 5 | 64 | 264 | 318 |
| 861 | Lattice Theory | 8 | 63 | 88 | 102 |
| 861 | Microbial Metabolism | 3 | 63 | 182 | 407 |
| 861 | multimedia | 2 | 63 | 288 | 264 |
| 861 | Interactive multimedia | 2 | 63 | 472 | 353 |
| 865 | Materials Engineering | 6 | 62 | 494 | 695 |
| 865 | Flexible electronics | 2 | 62 | 97 | 191 |
| 865 | Osteoporosis | 6 | 62 | 206 | 533 |
| 865 | Bone diseases | 6 | 62 | 348 | 934 |
| 865 | Semiconductor industry | 9 | 62 | 357 | 668 |
| 865 | Growth | 2 | 62 | 1753 | 2185 |
| 865 | population geography | 2 | 62 | 567 | 502 |
| 872 | Chemotherapy | 5 | 61 | 1541 | 2357 |
| 872 | Ecophysiology | 2 | 61 | 338 | 320 |
| 872 | Medical innovations | 4 | 61 | 1136 | 2554 |
| 872 | Androgens | 1 | 61 | 538 | 458 |
| 876 | Geriatric Nursing | 7 | 60 | 254 | 457 |
| 876 | Psychosomatic Medicine | 3 | 60 | 1067 | 1452 |
| 876 | Soviet Union | 3 | 60 | 860 | 460 |
| 879 | Educational Technology | 8 | 59 | 989 | 1908 |
| 879 | biocatalysis | 1 | 59 | 387 | 597 |
| 879 | Homogeneous catalysis | 1 | 59 | 387 | 597 |
| 879 | Heterogeneous catalysis | 1 | 59 | 387 | 597 |
| 883 | Industry | 3 | 58 | 175 | 621 |
| 884 | Tissue Engineering | 12 | 57 | 78 | 527 |
| 884 | disease susceptibility | 7 | 57 | 177 | 572 |
| 884 | symptoms | 7 | 57 | 177 | 572 |
| 887 | Dietetics | 1 | 56 | 1837 | 1029 |
| 887 | structural stability | 4 | 56 | 439 | 641 |
| 887 | phase diagrams | 1 | 56 | 317 | 184 |
| 887 | Dementia | 5 | 56 | 1459 | 1606 |
| 887 | Synapses | 1 | 56 | 614 | 502 |
| 887 | Menopause | 3 | 56 | 372 | 507 |
| 893 | Patient education | 2 | 55 | 988 | 1168 |
| 893 | mutation | 7 | 55 | 410 | 1196 |
| 893 | Food service management | 4 | 55 | 325 | 807 |
| 893 | X-rays | 6 | 55 | 519 | 809 |
| 893 | counseling | 2 | 55 | 2056 | 1873 |
| 898 | Ethics | 2 | 54 | 1478 | 1127 |
| 898 | Electrophysiology | 3 | 54 | 1498 | 1585 |
| 898 | radar | 1 | 54 | 483 | 292 |
| 898 | Sonar | 1 | 54 | 423 | 262 |
| 898 | Steroids | 7 | 54 | 783 | 1585 |
| 898 | biological agents | 15 | 54 | 144 | 286 |
| 898 | Navigation | 1 | 54 | 901 | 425 |
| 898 | econometric models | 3 | 54 | 700 | 904 |
| 906 | Contraception | 2 | 53 | 991 | 1085 |
| 906 | Developmental Immunology | 8 | 53 | 468 | 1378 |
| 906 | Birth control | 2 | 53 | 706 | 825 |
| 909 | Serology | 7 | 52 | 282 | 787 |
| 909 | Infection control | 3 | 52 | 911 | 1294 |
| 909 | Radio wave propagation | 8 | 52 | 493 | 893 |
| 909 | Heterocyclic compounds | 8 | 52 | 686 | 1045 |
| 909 | Catalyst | 1 | 52 | 92 | 142 |
| 914 | Mental Health Services | 2 | 51 | 2072 | 1926 |
| 914 | Solutions | 8 | 51 | 193 | 433 |
| 914 | Archaea | 1 | 51 | 91 | 111 |
| 914 | human development | 6 | 51 | 595 | 1252 |
| 914 | Cell metabolism | 6 | 51 | 543 | 1701 |
| 919 | Polymer Engineering | 1 | 50 | 288 | 103 |
| 919 | Proteomics | 4 | 50 | 1238 | 2214 |
| 919 | Critical Care Medicine | 4 | 50 | 1768 | 3032 |
| 919 | Regenerative Medicine | 5 | 50 | 88 | 176 |
| 919 | commerce | 9 | 50 | 982 | 2072 |
| 919 | biological invasions | 1 | 50 | 1218 | 1043 |
| 925 | Dentistry | 5 | 49 | 699 | 886 |
| 925 | Bioethics | 1 | 49 | 1897 | 1137 |
| 925 | Leukemia | 1 | 49 | 2340 | 1926 |
| 928 | Cognitive neuroscience | 5 | 48 | 872 | 1645 |
| 928 | clay minerals | 3 | 48 | 310 | 520 |
| 928 | Enzyme | 1 | 48 | 1006 | 977 |
| 931 | Crop Science | 4 | 47 | 123 | 180 |
| 931 | Morphology | 15 | 47 | 300 | 1050 |
| 931 | Combustion | 5 | 47 | 1130 | 1838 |
| 931 | Bacterial infections | 3 | 47 | 1148 | 1945 |
| 931 | heredity | 5 | 47 | 593 | 1090 |
| 936 | Development Economics | 4 | 46 | 427 | 734 |
| 936 | Systems Analysis | 3 | 46 | 1327 | 1554 |
| 936 | Pediatric Neurology | 1 | 46 | 2095 | 2425 |
| 936 | Fluid Dynamics | 12 | 46 | 624 | 1602 |
| 936 | Cryptography | 3 | 46 | 752 | 605 |
| 936 | Mental Health | 2 | 46 | 2583 | 2525 |
| 936 | emergency management | 1 | 46 | 1933 | 1421 |
| 936 | Liquid Crystals | 5 | 46 | 866 | 873 |
| 936 | nuclear magnetic resonance | 4 | 46 | 1188 | 1502 |
| 945 | Transplantation | 2 | 45 | 1863 | 2203 |
| 946 | Public Administration | 7 | 44 | 1055 | 1648 |
| 946 | Carcinogenesis | 4 | 44 | 1119 | 2083 |
| 946 | foreign exchange | 1 | 44 | 705 | 671 |
| 949 | Geotechnical Engineering | 4 | 43 | 464 | 745 |
| 949 | Emerging infectious diseases | 4 | 43 | 283 | 773 |
| 949 | Database Security | 1 | 43 | 249 | 110 |
| 949 | teratogenic agents | 1 | 43 | 583 | 312 |
| 949 | personality | 3 | 43 | 1618 | 2319 |
| 949 | Chemical processes | 3 | 43 | 751 | 906 |
| 949 | forestry | 2 | 43 | 354 | 399 |
| 956 | Number Theory | 4 | 42 | 831 | 685 |
| 956 | Chemical structure | 5 | 42 | 367 | 578 |
| 956 | North America | 3 | 42 | 1166 | 1413 |
| 959 | Microbial Genetics | 3 | 41 | 393 | 643 |
| 959 | Natural resources | 2 | 41 | 1106 | 1385 |
| 959 | Malaria | 1 | 41 | 1514 | 1363 |
| 959 | Finite Element Method | 3 | 41 | 309 | 469 |
| 959 | Longevity | 4 | 41 | 136 | 424 |
| 959 | tomography | 3 | 41 | 482 | 584 |
| 965 | Optical Communications | 4 | 40 | 578 | 843 |
| 965 | microwave antennas | 5 | 40 | 337 | 536 |
| 965 | Geriatric Oncology | 4 | 40 | 617 | 1295 |
| 965 | locomotion | 1 | 40 | 1411 | 1199 |
| 965 | posture | 1 | 40 | 1411 | 1199 |
| 965 | Groundwater | 9 | 40 | 404 | 1089 |
| 965 | gait | 1 | 40 | 1411 | 1199 |
| 965 | Toxins | 4 | 40 | 967 | 1502 |
| 965 | walking | 1 | 40 | 1411 | 1199 |
| 974 | Nutrition physiology | 1 | 39 | 1641 | 1522 |
| 975 | phytopathogenic bacteria | 2 | 38 | 352 | 575 |
| 975 | Scandinavia | 4 | 38 | 574 | 988 |
| 975 | alcoholism | 2 | 38 | 2262 | 2706 |
| 975 | venom | 3 | 38 | 1046 | 1414 |
| 979 | Radiography | 3 | 37 | 816 | 1276 |
| 979 | Hydrodynamics | 2 | 37 | 804 | 1024 |
| 979 | plant viruses | 3 | 37 | 193 | 388 |
| 979 | primary prevention | 1 | 37 | 989 | 917 |
| 983 | Biostatistics | 7 | 36 | 49 | 174 |
| 983 | Higher Education | 1 | 36 | 1132 | 842 |
| 983 | Visual Communication | 3 | 36 | 522 | 669 |
| 983 | Critical Care | 3 | 36 | 2177 | 3448 |
| 983 | Bioavailability | 1 | 36 | 215 | 147 |
| 983 | Image enhancement | 3 | 36 | 357 | 612 |
| 983 | breastfeeding | 3 | 36 | 630 | 1068 |
| 983 | Wind power | 2 | 36 | 472 | 499 |
| 983 | tests | 1 | 36 | 389 | 385 |
| 992 | Geometry | 10 | 35 | 765 | 1230 |
| 992 | Globalization | 3 | 35 | 606 | 1049 |
| 992 | Paleopathology | 5 | 35 | 256 | 442 |
| 995 | Flood control | 1 | 34 | 673 | 491 |
| 995 | drainage | 1 | 34 | 617 | 363 |
| 997 | Agricultural Engineering | 2 | 33 | 747 | 891 |
| 997 | Global Health | 2 | 33 | 1814 | 1965 |
| 997 | Neuropsychiatry | 2 | 33 | 1386 | 1788 |
| 997 | Epigenetics | 10 | 33 | 36 | 437 |