| 1 | Chemistry | 431 | 18.2K | 855 | 837 |
| 2 | Materials | 358 | 17.9K | 501 | 394 |
| 3 | Nanotechnology | 299 | 14.7K | 387 | 384 |
| 4 | Biocompatible Materials | 215 | 11.8K | 304 | 277 |
| 5 | Materials Science | 239 | 10.6K | 385 | 347 |
| 6 | Biotechnology | 261 | 10.5K | 405 | 532 |
| 7 | Colloids | 160 | 7.0K | 380 | 313 |
| 8 | Surface Chemistry | 157 | 6.9K | 376 | 291 |
| 9 | Analytical Chemistry | 218 | 6.8K | 345 | 389 |
| 10 | Physics | 253 | 6.6K | 1143 | 1875 |
| 11 | Chemical Engineering | 144 | 6.4K | 598 | 561 |
| 12 | nanoscience | 116 | 6.3K | 330 | 316 |
| 13 | Polymers | 272 | 6.0K | 375 | 480 |
| 14 | polymerization | 237 | 5.5K | 321 | 405 |
| 15 | Biochemical Engineering | 145 | 5.3K | 238 | 503 |
| 16 | Catalysis | 144 | 5.2K | 500 | 573 |
| 17 | Biochemistry | 191 | 5.2K | 1340 | 1511 |
| 18 | Bioengineering | 87 | 5.1K | 640 | 605 |
| 19 | Biology | 111 | 4.9K | 1669 | 2090 |
| 20 | Science | 122 | 4.7K | 1683 | 2231 |
| 21 | Optical materials | 89 | 4.6K | 332 | 300 |
| 22 | Molecular Biology | 115 | 4.1K | 1434 | 1633 |
| 23 | Nanostructured Materials | 101 | 4.0K | 478 | 431 |
| 24 | Biomedical Engineering | 124 | 4.0K | 597 | 619 |
| 25 | Electrochemistry | 126 | 3.7K | 537 | 449 |
| 26 | Microbiology | 142 | 3.1K | 902 | 1469 |
| 27 | actuators | 60 | 3.0K | 283 | 209 |
| 27 | transducers | 60 | 3.0K | 283 | 209 |
| 29 | Biomass Energy | 69 | 2.8K | 288 | 388 |
| 30 | Environment | 72 | 2.8K | 899 | 1278 |
| 31 | fuel cells | 51 | 2.6K | 176 | 216 |
| 32 | Energy Conversion | 52 | 2.6K | 172 | 313 |
| 33 | Pollution | 65 | 2.5K | 1167 | 1353 |
| 34 | Medicine | 69 | 2.3K | 2505 | 2682 |
| 35 | Botany | 68 | 2.2K | 880 | 963 |
| 36 | miniaturization | 29 | 2.2K | 521 | 441 |
| 37 | Ecology | 74 | 2.1K | 1293 | 1755 |
| 38 | environmental pollution | 48 | 2.0K | 1077 | 1065 |
| 39 | Biosensors | 34 | 2.0K | 211 | 220 |
| 40 | Microelectronics | 24 | 2.0K | 638 | 421 |
| 41 | Solid State Physics | 114 | 1.9K | 740 | 890 |
| 42 | Bioelectronics | 29 | 1.9K | 196 | 197 |
| 43 | Nanoparticles | 50 | 1.9K | 253 | 277 |
| 44 | Research | 73 | 1.7K | 1927 | 2303 |
| 45 | Composite Materials | 34 | 1.7K | 748 | 670 |
| 46 | Magnetic Materials | 47 | 1.6K | 249 | 223 |
| 47 | Surface-Active Agents | 21 | 1.6K | 203 | 90 |
| 47 | Surface properties | 21 | 1.6K | 227 | 97 |
| 49 | Biophysics | 63 | 1.5K | 1393 | 1592 |
| 50 | Energy Storage | 52 | 1.5K | 141 | 221 |
| 51 | Condensed Matter | 97 | 1.5K | 764 | 959 |
| 52 | Green Chemistry | 45 | 1.3K | 315 | 525 |
| 53 | Industrial Microbiology | 43 | 1.3K | 277 | 472 |
| 54 | Environmental Management | 42 | 1.3K | 565 | 827 |
| 55 | Environmental Chemistry | 13 | 1.2K | 988 | 662 |
| 56 | Nanostructures | 41 | 1.2K | 377 | 543 |
| 57 | Renewable Energy Sources | 12 | 1.2K | 1307 | 1030 |
| 58 | Technology | 44 | 1.2K | 1001 | 906 |
| 59 | Carbon | 15 | 1.1K | 497 | 409 |
| 60 | Environmental monitoring | 25 | 1.1K | 1318 | 1261 |
| 61 | China | 58 | 1.1K | 467 | 512 |
| 62 | Telecommunication | 70 | 1.1K | 411 | 678 |
| 63 | Environmental Health | 45 | 1.0K | 1306 | 1809 |
| 64 | Intelligent Transportation Systems | 14 | 1.0K | 428 | 242 |
| 65 | Earth Sciences | 36 | 1.0K | 901 | 930 |
| 66 | Metals | 21 | 987 | 779 | 594 |
| 67 | Artificial Intelligence | 30 | 957 | 1281 | 1133 |
| 68 | Sustainable Engineering | 29 | 927 | 376 | 488 |
| 69 | Information Theory | 60 | 919 | 188 | 347 |
| 70 | Genetic engineering | 25 | 907 | 628 | 702 |
| 71 | Plastics | 34 | 892 | 317 | 294 |
| 72 | Microbial Ecology | 33 | 869 | 620 | 991 |
| 73 | biofuels | 16 | 864 | 63 | 83 |
| 74 | Mathematics | 165 | 826 | 928 | 1482 |
| 75 | Plants | 31 | 757 | 575 | 821 |
| 76 | Organic Chemistry | 51 | 692 | 814 | 1224 |
| 77 | Signal Processing | 26 | 691 | 888 | 991 |
| 78 | Geophysics | 23 | 689 | 1435 | 1418 |
| 79 | Plant genetic engineering | 9 | 684 | 496 | 346 |
| 80 | management | 21 | 668 | 1293 | 1283 |
| 81 | Medical Laboratory Science | 26 | 657 | 627 | 927 |
| 82 | Electronics | 40 | 654 | 1037 | 1179 |
| 83 | Plant physiology | 18 | 648 | 883 | 998 |
| 84 | Automation | 12 | 647 | 1181 | 907 |
| 85 | plant molecular biology | 28 | 640 | 430 | 821 |
| 86 | Cryptography | 45 | 634 | 27 | 48 |
| 87 | Geodesy | 21 | 633 | 131 | 106 |
| 88 | Environmental Engineering | 19 | 631 | 1585 | 1585 |
| 88 | Image Processing | 21 | 631 | 811 | 831 |
| 90 | Genomics | 27 | 628 | 1008 | 1313 |
| 91 | Spectrum analysis | 36 | 625 | 1302 | 1648 |
| 92 | Astrophysics | 20 | 623 | 1406 | 1352 |
| 93 | Geochemistry | 19 | 616 | 833 | 884 |
| 94 | Plant Biotechnology | 8 | 615 | 418 | 232 |
| 95 | environmental indicators | 19 | 612 | 234 | 360 |
| 96 | Photonics | 31 | 608 | 594 | 864 |
| 97 | Solid State Chemistry | 25 | 565 | 889 | 826 |
| 98 | Industrial Engineering | 13 | 560 | 895 | 615 |
| 99 | Membranes | 13 | 558 | 843 | 870 |
| 100 | Geography | 14 | 539 | 1009 | 814 |
| 101 | Nanochemistry | 22 | 522 | 244 | 214 |
| 102 | Multimedia Systems | 13 | 521 | 801 | 444 |
| 103 | Environmental Toxicology | 21 | 510 | 782 | 1136 |
| 104 | Remote Sensing | 15 | 506 | 554 | 307 |
| 105 | Neural circuitry | 24 | 505 | 535 | 787 |
| 106 | Plant cells | 13 | 501 | 555 | 827 |
| 107 | environmental protection | 20 | 487 | 1280 | 1610 |
| 108 | Optics | 39 | 459 | 1603 | 1690 |
| 109 | Toxicology | 20 | 451 | 1994 | 2424 |
| 110 | Cybernetics | 17 | 447 | 590 | 689 |
| 111 | Developmental Biology | 8 | 443 | 1189 | 1163 |
| 112 | Meteorology | 24 | 442 | 750 | 1228 |
| 113 | Statistical physics | 40 | 429 | 1171 | 1561 |
| 114 | Microbial Biotechnology | 23 | 428 | 128 | 273 |
| 115 | Agricultural Chemistry | 14 | 425 | 1068 | 1087 |
| 116 | Plant tissue culture | 12 | 421 | 253 | 233 |
| 116 | Plant cell culture | 12 | 421 | 211 | 228 |
| 118 | soil microbiology | 15 | 418 | 607 | 954 |
| 119 | Electromagnetism | 13 | 416 | 433 | 337 |
| 120 | Crystal growth | 6 | 413 | 758 | 381 |
| 121 | Animal Behavior | 20 | 407 | 670 | 1036 |
| 122 | Environmental Policy | 10 | 406 | 1732 | 1930 |
| 123 | Cytology | 15 | 403 | 2095 | 2684 |
| 124 | Coding Theory | 28 | 401 | 26 | 34 |
| 125 | Genetics | 23 | 391 | 1424 | 2480 |
| 126 | Nuclear Physics | 35 | 388 | 1639 | 2019 |
| 127 | Virology | 12 | 381 | 1594 | 2179 |
| 128 | Chromatographic analysis | 20 | 378 | 650 | 681 |
| 129 | Metallurgy | 14 | 377 | 1103 | 1039 |
| 130 | Manufacturing Processes | 10 | 376 | 1283 | 1042 |
| 131 | Structural dynamics | 2 | 370 | 1262 | 538 |
| 131 | vibration | 2 | 370 | 1511 | 471 |
| 133 | Climate change | 5 | 364 | 810 | 1033 |
| 134 | pigments | 13 | 361 | 290 | 284 |
| 135 | Plant Ecology | 11 | 359 | 926 | 1071 |
| 136 | Bioorganic chemistry | 20 | 354 | 1176 | 1584 |
| 137 | Ethology | 19 | 351 | 543 | 960 |
| 137 | Interactive multimedia | 5 | 351 | 446 | 249 |
| 139 | Cell Biology | 19 | 350 | 1783 | 2841 |
| 140 | Pharmaceutical Chemistry | 18 | 345 | 1746 | 2294 |
| 141 | Pharmacology | 19 | 342 | 2417 | 3088 |
| 142 | multimedia | 4 | 338 | 436 | 244 |
| 143 | Social Change | 2 | 333 | 1219 | 619 |
| 143 | Environmental pollutants | 16 | 333 | 904 | 1279 |
| 145 | Building Materials | 9 | 322 | 1019 | 1113 |
| 145 | Entomology | 30 | 322 | 688 | 928 |
| 147 | Genetic regulation | 13 | 320 | 469 | 783 |
| 148 | Synthetic biology | 14 | 319 | 90 | 130 |
| 149 | Chromatography | 16 | 317 | 632 | 687 |
| 150 | Engineering | 23 | 315 | 1698 | 1977 |
| 151 | Environmental Microbiology | 13 | 310 | 582 | 954 |
| 151 | Metabolism | 7 | 310 | 1810 | 1867 |
| 153 | proteins | 14 | 306 | 996 | 1135 |
| 154 | Histology | 14 | 305 | 843 | 1097 |
| 154 | enzymes | 16 | 305 | 589 | 853 |
| 156 | Aging | 8 | 303 | 1806 | 1454 |
| 157 | Chemical industry | 22 | 302 | 346 | 430 |
| 158 | biological evolution | 9 | 299 | 1186 | 1415 |
| 159 | Energy Harvesting | 4 | 298 | 410 | 428 |
| 160 | Gene expression regulation | 12 | 291 | 415 | 604 |
| 160 | protein | 12 | 291 | 592 | 692 |
| 162 | Ceramics | 19 | 290 | 518 | 698 |
| 163 | Radiation effects | 5 | 289 | 414 | 327 |
| 164 | Molecular Genetics | 7 | 286 | 1213 | 1253 |
| 164 | Molecular evolution | 7 | 286 | 945 | 971 |
| 164 | Phylogeny | 7 | 286 | 558 | 598 |
| 167 | Solar Energy | 8 | 284 | 1046 | 1083 |
| 168 | Biodiversity conservation | 3 | 281 | 1688 | 1402 |
| 168 | Zeolites | 13 | 281 | 341 | 541 |
| 170 | energy conservation | 14 | 280 | 810 | 1485 |
| 170 | pollutants | 12 | 280 | 866 | 1209 |
| 172 | Analytical Biochemistry | 16 | 278 | 656 | 923 |
| 173 | Numerical Analysis | 10 | 276 | 1362 | 993 |
| 174 | mathematical analysis | 63 | 273 | 469 | 974 |
| 175 | Bioenergetics | 9 | 270 | 421 | 514 |
| 176 | Glass | 17 | 269 | 403 | 637 |
| 176 | pottery | 17 | 269 | 393 | 628 |
| 178 | free radicals | 4 | 268 | 1180 | 1070 |
| 179 | Algebra | 44 | 265 | 320 | 417 |
| 180 | Food service management | 1 | 264 | 655 | 288 |
| 181 | Luminescence | 24 | 263 | 271 | 508 |
| 182 | Ceramic materials | 10 | 261 | 670 | 652 |
| 183 | viruses | 9 | 260 | 858 | 1148 |
| 184 | Geriatrics | 6 | 259 | 2128 | 1569 |
| 184 | Eutrophication | 2 | 259 | 1174 | 1161 |
| 186 | biopolymers | 6 | 258 | 860 | 702 |
| 187 | plant communities | 5 | 254 | 848 | 835 |
| 188 | Endocrinology | 4 | 253 | 2595 | 2171 |
| 188 | food technology | 6 | 253 | 1804 | 1621 |
| 190 | economic policy | 8 | 248 | 1537 | 957 |
| 191 | environmental exposure | 10 | 247 | 945 | 1199 |
| 192 | Energy Policy | 5 | 246 | 2107 | 2071 |
| 193 | Molecular Spectroscopy | 17 | 241 | 621 | 937 |
| 194 | Economic History | 11 | 240 | 1988 | 1541 |
| 194 | Computer Literacy | 1 | 240 | 465 | 89 |
| 196 | Soil Science | 10 | 239 | 1048 | 1241 |
| 197 | Chemical analysis | 9 | 238 | 634 | 688 |
| 198 | Oxidative stress | 4 | 236 | 1060 | 961 |
| 198 | Microorganisms | 6 | 236 | 708 | 865 |
| 200 | Zoology | 18 | 231 | 1113 | 1318 |
| 201 | Cell differentiation | 6 | 229 | 1222 | 1471 |
| 202 | Food | 5 | 226 | 2542 | 2165 |
| 203 | biocatalysis | 2 | 225 | 236 | 326 |
| 203 | Homogeneous catalysis | 2 | 225 | 236 | 326 |
| 203 | Heterogeneous catalysis | 2 | 225 | 236 | 326 |
| 206 | Developing countries | 6 | 224 | 1637 | 1287 |
| 207 | Nanobiotechnology | 7 | 222 | 174 | 345 |
| 207 | United States | 13 | 222 | 2557 | 2908 |
| 209 | Social Sciences | 20 | 221 | 1359 | 1522 |
| 209 | Humanities | 20 | 221 | 464 | 467 |
| 211 | Oxidation-reduction | 3 | 216 | 831 | 810 |
| 212 | Information Science | 13 | 213 | 1152 | 1619 |
| 213 | Information Technology | 17 | 209 | 989 | 1434 |
| 213 | Sustainable Development | 7 | 209 | 1314 | 1402 |
| 215 | Electrochemical Analysis | 15 | 204 | 623 | 955 |
| 215 | solar cells | 5 | 204 | 689 | 746 |
| 217 | Hypertension | 2 | 203 | 1800 | 1472 |
| 217 | Cardiovascular system | 2 | 203 | 1791 | 1534 |
| 219 | solar power | 4 | 201 | 716 | 688 |
| 219 | Enzyme | 9 | 201 | 190 | 369 |
| 221 | nucleic acids | 12 | 200 | 898 | 1530 |
| 222 | human behavior | 5 | 199 | 1834 | 2066 |
| 223 | Operations Research | 9 | 198 | 1329 | 1339 |
| 224 | Ecological Engineering | 2 | 192 | 821 | 515 |
| 225 | Natural history | 23 | 191 | 1312 | 4790 |
| 226 | energy resources | 3 | 185 | 1340 | 1381 |
| 227 | sanitation | 6 | 183 | 1142 | 1643 |
| 227 | Electrophoresis | 8 | 183 | 1047 | 1143 |
| 229 | Internet of Things | 15 | 182 | 425 | 810 |
| 229 | internet | 15 | 182 | 597 | 1038 |
| 231 | Computer Science | 13 | 179 | 958 | 1038 |
| 232 | animals | 15 | 178 | 474 | 650 |
| 233 | Systems Biology | 10 | 177 | 777 | 1097 |
| 234 | concrete | 2 | 176 | 1198 | 890 |
| 235 | Bioinformatics | 9 | 173 | 1282 | 1623 |
| 236 | Clinical Chemistry | 11 | 171 | 1573 | 2343 |
| 237 | Animal ecology | 11 | 170 | 585 | 819 |
| 237 | Pesticides | 12 | 170 | 215 | 333 |
| 239 | Economics | 12 | 168 | 2312 | 2363 |
| 239 | Mineral resources | 8 | 168 | 209 | 430 |
| 239 | Immunity | 5 | 168 | 1487 | 2088 |
| 242 | Water pollution | 7 | 166 | 1898 | 2317 |
| 242 | Semiconductors | 16 | 166 | 814 | 1163 |
| 242 | Nervous system | 7 | 166 | 1612 | 2042 |
| 245 | Environmental Geology | 7 | 164 | 1114 | 1285 |
| 245 | Friction | 5 | 164 | 51 | 78 |
| 247 | Public Health | 6 | 162 | 4310 | 4394 |
| 247 | particles | 6 | 162 | 640 | 586 |
| 249 | Biomolecules | 1 | 159 | 841 | 431 |
| 250 | Sociology | 16 | 157 | 1219 | 1970 |
| 250 | computer networks | 9 | 157 | 1582 | 1795 |
| 252 | Photochemistry | 8 | 156 | 1084 | 1286 |
| 252 | Biomechanics | 5 | 156 | 1118 | 1017 |
| 252 | Photobiology | 8 | 156 | 826 | 1012 |
| 255 | planning | 10 | 149 | 253 | 364 |
| 255 | Psychophysiology | 10 | 149 | 1499 | 2265 |
| 257 | Molecular structure | 10 | 148 | 1369 | 1793 |
| 258 | Land use | 6 | 147 | 764 | 930 |
| 259 | Water | 9 | 144 | 1455 | 2392 |
| 260 | Hydrology | 11 | 143 | 1379 | 1863 |
| 260 | Oncogenes | 2 | 143 | 1356 | 1385 |
| 262 | Soil biology | 4 | 142 | 781 | 977 |
| 263 | Plant Genetics | 5 | 141 | 516 | 738 |
| 263 | behavioral medicine | 1 | 141 | 2137 | 1211 |
| 265 | Fluorescence | 6 | 140 | 226 | 173 |
| 266 | Chromosome mapping | 7 | 138 | 1234 | 1774 |
| 266 | gene mapping | 7 | 138 | 1347 | 2013 |
| 268 | Mathematical Physics | 19 | 137 | 1295 | 1709 |
| 268 | Alternative Medicine | 4 | 137 | 1711 | 1442 |
| 268 | complementary therapies | 4 | 137 | 1858 | 1495 |
| 268 | Raman spectroscopy | 6 | 137 | 508 | 574 |
| 272 | Engineering Mathematics | 22 | 136 | 885 | 1443 |
| 273 | Medical Microbiology | 4 | 134 | 1983 | 2227 |
| 274 | Climatology | 3 | 133 | 1721 | 1501 |
| 274 | Allergy | 1 | 133 | 1749 | 1374 |
| 276 | Agriculture | 6 | 132 | 1664 | 1741 |
| 277 | Educational Technology | 6 | 131 | 1088 | 1112 |
| 277 | System analysis | 11 | 131 | 1340 | 1804 |
| 279 | Biofilms | 2 | 130 | 168 | 144 |
| 280 | Computational Biology | 7 | 128 | 2027 | 2401 |
| 281 | infrared radiation | 4 | 126 | 507 | 291 |
| 282 | Systems Engineering | 9 | 125 | 1364 | 1583 |
| 283 | Wireless Communication Systems | 12 | 124 | 1261 | 1731 |
| 284 | Computer Graphics | 6 | 123 | 1247 | 1303 |
| 285 | Physical Chemistry | 8 | 118 | 1485 | 1897 |
| 285 | Water quality management | 6 | 118 | 1336 | 1424 |
| 287 | organization | 1 | 115 | 1213 | 730 |
| 288 | Geomorphology | 8 | 114 | 860 | 1349 |
| 289 | Emotions | 1 | 113 | 883 | 621 |
| 290 | Geographic information systems | 12 | 110 | 424 | 735 |
| 290 | Immunochemistry | 3 | 110 | 1043 | 852 |
| 290 | soil conservation | 5 | 110 | 580 | 729 |
| 290 | Production Management | 2 | 110 | 1271 | 1231 |
| 290 | land degradation | 5 | 110 | 308 | 463 |
| 290 | degradation | 5 | 110 | 308 | 463 |
| 296 | health planning | 18 | 109 | 731 | 1659 |
| 297 | Ferroelectricity | 28 | 108 | 240 | 620 |
| 298 | Neurophysiology | 5 | 106 | 2168 | 2724 |
| 299 | Global Health | 3 | 105 | 1113 | 777 |
| 299 | Bioremediation | 2 | 105 | 1128 | 868 |
| 299 | Granular materials | 2 | 105 | 766 | 520 |
| 302 | Anatomy | 2 | 104 | 2226 | 1720 |
| 302 | Embryology | 2 | 104 | 1735 | 1638 |
| 302 | Growth | 2 | 104 | 1339 | 1402 |
| 305 | Social behavior | 9 | 102 | 613 | 1077 |
| 305 | Soil ecology | 2 | 102 | 929 | 854 |
| 307 | Waste management | 5 | 101 | 1175 | 1138 |
| 307 | Water Purification | 5 | 101 | 926 | 923 |
| 307 | Stem cells | 8 | 101 | 997 | 1661 |
| 310 | Soft Condensed Matter | 5 | 99 | 855 | 1032 |
| 311 | economic analysis | 5 | 97 | 130 | 167 |
| 311 | Australia | 5 | 97 | 1461 | 1448 |
| 313 | Tourism | 7 | 96 | 1020 | 1584 |
| 313 | Nonlinear Dynamics | 7 | 96 | 1481 | 1719 |
| 313 | bioluminescence | 7 | 96 | 150 | 161 |
| 316 | Organometallic chemistry | 12 | 92 | 964 | 1543 |
| 317 | Cell death | 3 | 90 | 1222 | 1582 |
| 317 | Cement | 1 | 90 | 956 | 796 |
| 319 | freshwater biology | 1 | 87 | 1525 | 908 |
| 320 | Lightweight concrete | 1 | 86 | 691 | 677 |
| 321 | biological factors | 4 | 82 | 1780 | 1947 |
| 322 | Physiology | 7 | 81 | 2894 | 4183 |
| 322 | Landscape Ecology | 1 | 81 | 776 | 606 |
| 322 | Evidence-Based Medicine | 3 | 81 | 1354 | 1290 |
| 325 | Epidemiology | 2 | 80 | 4529 | 3856 |
| 325 | Proteomics | 5 | 80 | 912 | 1409 |
| 327 | Marine resources | 1 | 79 | 1175 | 736 |
| 327 | ports | 1 | 79 | 520 | 277 |
| 327 | educational planning | 1 | 79 | 704 | 417 |
| 327 | Liver diseases | 1 | 79 | 2089 | 1840 |
| 331 | Geometry | 17 | 78 | 478 | 694 |
| 331 | Catalysts | 12 | 78 | 222 | 678 |
| 333 | Sustainable agriculture | 4 | 77 | 616 | 774 |
| 333 | Integrated Circuits | 6 | 77 | 578 | 427 |
| 335 | Optical Communications | 6 | 76 | 571 | 721 |
| 335 | Physical organic chemistry | 7 | 76 | 975 | 1346 |
| 335 | lasers | 9 | 76 | 1314 | 1866 |
| 338 | Biodegradation | 1 | 75 | 1347 | 965 |
| 338 | Technological Innovations | 4 | 75 | 914 | 1097 |
| 338 | Asia | 7 | 75 | 1901 | 2249 |
| 338 | Microscopy | 6 | 75 | 1169 | 1299 |
| 342 | Machine Learning | 2 | 73 | 495 | 393 |
| 342 | commerce | 4 | 73 | 1436 | 1447 |
| 344 | Infrared spectroscopy | 4 | 72 | 224 | 334 |
| 345 | Eastern Europe | 3 | 71 | 1063 | 550 |
| 345 | Cellulose | 3 | 71 | 611 | 802 |
| 347 | Biogeography | 3 | 70 | 955 | 1336 |
| 347 | Cytogenetics | 4 | 70 | 1349 | 2012 |
| 347 | Differential Equations | 6 | 70 | 690 | 755 |
| 350 | Information Systems | 6 | 69 | 967 | 1559 |
| 351 | Health Services Administration | 9 | 68 | 485 | 1173 |
| 351 | Bioinorganic chemistry | 3 | 68 | 1402 | 1508 |
| 353 | Heterocyclic compounds | 6 | 67 | 720 | 743 |
| 354 | Pharmacognosy | 4 | 66 | 1664 | 2350 |
| 354 | finance | 8 | 66 | 1456 | 2026 |
| 354 | Perception | 6 | 66 | 1265 | 2038 |
| 354 | Fuzzy systems | 6 | 66 | 1180 | 1359 |
| 358 | Plant breeding | 6 | 65 | 563 | 956 |
| 359 | Production Engineering | 4 | 64 | 1783 | 1830 |
| 359 | Plant diseases | 4 | 64 | 1716 | 1908 |
| 359 | Insects | 12 | 64 | 705 | 1380 |
| 362 | Nanoelectronics | 6 | 62 | 603 | 712 |
| 362 | Semiconductor industry | 6 | 62 | 439 | 582 |
| 364 | Tribology | 2 | 61 | 1477 | 1308 |
| 364 | Human genetics | 1 | 61 | 3096 | 3566 |
| 364 | cell physiology | 3 | 61 | 1537 | 2110 |
| 367 | Statistics | 17 | 60 | 1170 | 2233 |
| 367 | Happiness | 1 | 60 | 820 | 594 |
| 367 | Quality of life | 1 | 60 | 2480 | 1965 |
| 367 | Aquaculture | 3 | 60 | 1401 | 1510 |
| 371 | Fluid Mechanics | 4 | 58 | 1509 | 1651 |
| 371 | Plant hormones | 4 | 58 | 246 | 462 |
| 371 | Behavior | 4 | 58 | 2671 | 4003 |
| 374 | Medicinal plants | 3 | 57 | 1514 | 2003 |
| 374 | Breeding | 5 | 57 | 911 | 1457 |
| 376 | Neuropsychology | 1 | 56 | 3304 | 2604 |
| 376 | Medical genetics | 4 | 56 | 2313 | 3640 |
| 376 | Comparative Physiology | 1 | 56 | 1161 | 959 |
| 376 | Fishery management | 2 | 56 | 1024 | 915 |
| 376 | Entropy | 5 | 56 | 882 | 1087 |
| 376 | Evolution | 4 | 56 | 1606 | 2301 |
| 376 | herbicides | 1 | 56 | 490 | 337 |
| 383 | Food additives | 3 | 55 | 1195 | 1674 |
| 383 | Fractals | 8 | 55 | 714 | 1373 |
| 383 | Combinatorial analysis | 7 | 55 | 703 | 730 |
| 383 | hydrocolloids | 3 | 55 | 581 | 1093 |
| 383 | Detectors | 8 | 55 | 1000 | 1816 |
| 383 | Extreme environments | 1 | 55 | 472 | 425 |
| 389 | Public Policy | 3 | 54 | 1754 | 2202 |
| 389 | Heat Exchangers | 2 | 54 | 1426 | 1692 |
| 389 | Technology Assessment | 1 | 54 | 710 | 652 |
| 392 | Graph Theory | 7 | 53 | 459 | 527 |
| 392 | Computer-Aided Design | 1 | 53 | 2020 | 1403 |
| 392 | Mass Spectrometry | 4 | 53 | 1064 | 1397 |
| 392 | Monomers | 4 | 53 | 45 | 72 |
| 396 | synthesis | 8 | 52 | 590 | 970 |
| 397 | Mobile Computing | 5 | 51 | 1014 | 1314 |
| 397 | Invertebrates | 3 | 51 | 609 | 761 |
| 397 | Cognition | 7 | 51 | 1081 | 1870 |
| 400 | Metallic Glasses | 2 | 50 | 570 | 608 |
| 400 | Developmental Immunology | 3 | 50 | 843 | 1166 |
| 400 | body temperature | 3 | 50 | 482 | 656 |
| 403 | Mechanical Engineering | 2 | 49 | 2921 | 2271 |
| 403 | Bioprinting | 1 | 49 | 93 | 86 |
| 405 | Parasitology | 1 | 48 | 3395 | 2752 |
| 405 | Computational Complexity | 7 | 48 | 646 | 1064 |
| 405 | Parasitic Diseases | 1 | 48 | 3008 | 2622 |
| 405 | hazard mitigation | 2 | 48 | 1216 | 1323 |
| 405 | Parasites | 1 | 48 | 2394 | 1943 |
| 405 | natural disasters | 2 | 48 | 1641 | 1793 |
| 411 | Neurology | 2 | 47 | 5833 | 6245 |
| 411 | Telecommunications | 2 | 47 | 1060 | 841 |
| 413 | Epigenetics | 8 | 46 | 63 | 294 |
| 413 | Epigenomics | 8 | 46 | 60 | 286 |
| 413 | Fertilizers | 1 | 46 | 633 | 536 |
| 413 | optical devices | 3 | 46 | 517 | 590 |
| 413 | drug toxicity | 3 | 46 | 449 | 794 |
| 418 | Education | 7 | 45 | 2608 | 3411 |
| 418 | Transgenic plants | 3 | 45 | 491 | 872 |
| 420 | Social Psychology | 9 | 44 | 1162 | 2603 |
| 420 | Nanophotonics | 2 | 44 | 419 | 539 |
| 422 | Psychology | 11 | 43 | 2668 | 5586 |
| 422 | Egypt | 2 | 43 | 663 | 806 |
| 424 | Molecular cloning | 1 | 42 | 2371 | 2047 |
| 424 | Genetic recombination | 1 | 42 | 2318 | 2023 |
| 424 | clay | 1 | 42 | 1322 | 1363 |
| 424 | Recombinant DNA | 1 | 42 | 2467 | 2143 |
| 424 | Biodiversity | 4 | 42 | 2058 | 2958 |
| 429 | ecosystem | 2 | 41 | 1567 | 2049 |
| 430 | Atmospheric Chemistry | 1 | 40 | 1276 | 1367 |
| 431 | Forest Ecology | 2 | 39 | 1232 | 1566 |
| 431 | Forest Management | 2 | 39 | 1198 | 1497 |
| 431 | brain mapping | 2 | 39 | 764 | 1075 |
| 434 | Data Mining | 3 | 38 | 1669 | 2454 |
| 434 | Biotransformation | 2 | 38 | 166 | 164 |
| 434 | Cognitive Therapy | 1 | 38 | 1038 | 891 |
| 434 | United Kingdom | 1 | 38 | 2501 | 2184 |
| 438 | Nutrition | 6 | 37 | 3187 | 5785 |
| 438 | Logistics | 2 | 37 | 653 | 897 |
| 438 | Environmental Law | 2 | 37 | 1351 | 2089 |
| 438 | Human-Computer Interaction | 1 | 37 | 2592 | 2120 |
| 438 | Biomass | 3 | 37 | 619 | 1317 |
| 443 | Traffic Engineering | 1 | 36 | 742 | 718 |
| 443 | Neurochemistry | 2 | 36 | 2591 | 3183 |
| 443 | Highway Engineering | 1 | 36 | 754 | 563 |
| 443 | Transportation | 1 | 36 | 2463 | 2112 |
| 443 | Herbal medicine | 1 | 36 | 1311 | 1494 |
| 448 | starch | 2 | 33 | 430 | 520 |
| 449 | Electrical Engineering | 5 | 32 | 3013 | 3506 |
| 449 | Physical Geography | 3 | 32 | 576 | 796 |
| 449 | Thermodynamics | 2 | 32 | 1518 | 1331 |
| 449 | International Finance | 4 | 32 | 1356 | 2019 |
| 453 | Functional Analysis | 9 | 31 | 768 | 1373 |
| 453 | Combustion | 1 | 31 | 1844 | 1736 |
| 453 | DNS | 1 | 31 | 992 | 992 |
| 453 | Communication | 2 | 31 | 2528 | 2655 |
| 453 | rare diseases | 2 | 31 | 825 | 1129 |
| 453 | human development | 3 | 31 | 775 | 1280 |
| 453 | pain | 1 | 31 | 2103 | 2067 |
| 453 | genome | 1 | 31 | 2506 | 2700 |
| 453 | Recycling | 1 | 31 | 1025 | 1432 |
| 453 | Genes | 1 | 31 | 1921 | 1835 |
| 463 | Atmospheric Physics | 2 | 30 | 1742 | 2208 |
| 463 | Combinatorial optimization | 2 | 30 | 646 | 526 |
| 463 | Water quality | 1 | 30 | 511 | 447 |
| 463 | sustainability | 2 | 30 | 1124 | 1640 |
| 463 | Matroids | 2 | 30 | 263 | 304 |
| 463 | Water chemistry | 1 | 30 | 736 | 608 |
| 463 | Algal blooms | 1 | 30 | 493 | 631 |
| 463 | Cyanobacteria | 1 | 30 | 493 | 631 |
| 463 | microalgae | 1 | 30 | 493 | 631 |
| 472 | Immunotherapy | 2 | 29 | 2345 | 3192 |
| 472 | Systems Analysis | 2 | 29 | 1378 | 1614 |
| 472 | Investment analysis | 2 | 29 | 985 | 1164 |
| 472 | Neuroplasticity | 4 | 29 | 361 | 881 |
| 472 | probabilities | 8 | 29 | 819 | 1255 |
| 472 | cloning | 1 | 29 | 1088 | 1348 |
| 472 | Insect biochemistry | 1 | 29 | 749 | 807 |
| 479 | Telecommunication Systems | 2 | 28 | 1974 | 1976 |
| 479 | Corporate Social Responsibility | 1 | 28 | 583 | 763 |
| 479 | Cell division | 1 | 28 | 1053 | 1174 |
| 479 | environmental auditing | 1 | 28 | 602 | 773 |
| 483 | Signal Transduction | 3 | 27 | 1474 | 2426 |
| 483 | Immunopharmacology | 1 | 27 | 1777 | 1905 |
| 483 | Organometallic compounds | 2 | 27 | 1498 | 1770 |
| 483 | Vocational guidance | 1 | 27 | 1326 | 1300 |
| 483 | cytokines | 1 | 27 | 2199 | 2440 |
| 483 | Microbiota | 1 | 27 | 166 | 166 |
| 483 | Japan | 4 | 27 | 1829 | 2680 |
| 483 | cell interaction | 2 | 27 | 1496 | 2138 |
| 491 | Cartography | 4 | 26 | 441 | 619 |
| 491 | Wetland ecology | 3 | 26 | 451 | 854 |
| 491 | Phytotherapy | 1 | 26 | 1567 | 1690 |
| 494 | Horticulture | 2 | 25 | 1023 | 1217 |
| 494 | Health Policy | 1 | 25 | 3854 | 3634 |
| 494 | Immunopathology | 2 | 25 | 1511 | 2198 |
| 494 | health services accessibility | 1 | 25 | 1590 | 1596 |
| 494 | mass transfer | 2 | 25 | 1869 | 2381 |
| 494 | Calorimetry | 1 | 25 | 1900 | 1750 |
| 494 | Emulsions | 10 | 25 | 109 | 574 |
| 494 | personality | 4 | 25 | 1175 | 2125 |
| 494 | Planets | 2 | 25 | 1670 | 2420 |
| 494 | Imaging systems | 3 | 25 | 871 | 1102 |
| 494 | Immune system | 2 | 25 | 1265 | 1977 |
| 494 | Thermal analysis | 1 | 25 | 1900 | 1750 |
| 506 | Oceanography | 1 | 24 | 2548 | 2511 |
| 506 | natural products | 2 | 24 | 2183 | 2514 |
| 506 | Iron | 3 | 24 | 346 | 548 |
| 509 | Visual Communication | 1 | 23 | 891 | 745 |
| 509 | Operator theory | 4 | 23 | 327 | 437 |
| 509 | Thin Films | 3 | 23 | 624 | 903 |
| 509 | Image enhancement | 1 | 23 | 660 | 673 |
| 509 | Solitons | 4 | 23 | 947 | 1728 |
| 509 | Chaos | 4 | 23 | 947 | 1728 |
| 509 | Brain | 1 | 23 | 3597 | 3896 |
| 509 | Arthropods | 2 | 23 | 330 | 458 |
| 509 | medical education | 1 | 23 | 2818 | 2634 |
| 509 | atmosphere | 1 | 23 | 1266 | 1429 |
| 509 | city planning | 5 | 23 | 1274 | 2311 |
| 509 | Animal | 1 | 23 | 361 | 364 |
| 509 | Textile industry | 2 | 23 | 658 | 667 |
| 522 | Software Engineering | 3 | 22 | 1200 | 1576 |
| 522 | Urology | 1 | 22 | 2474 | 2632 |
| 522 | Drug design | 4 | 22 | 1584 | 2978 |
| 522 | Strategic planning | 1 | 22 | 1277 | 1276 |
| 522 | biomedicine | 1 | 22 | 1750 | 1839 |
| 527 | Decision making | 1 | 21 | 2540 | 2522 |
| 528 | Civil Engineering | 4 | 20 | 1720 | 2301 |
| 528 | Robotics | 2 | 20 | 2068 | 2582 |
| 528 | symbiosis | 2 | 20 | 171 | 383 |
| 528 | Cellular senescence | 1 | 20 | 1422 | 1911 |
| 528 | Nonlinear functional analysis | 8 | 20 | 693 | 1557 |
| 533 | Psychiatry | 3 | 19 | 4187 | 6404 |
| 533 | Medical Oncology | 1 | 19 | 2655 | 3143 |
| 533 | Carcinogenesis | 1 | 19 | 1627 | 2066 |
| 533 | Metabolic diseases | 1 | 19 | 3403 | 4136 |
| 533 | carcinogens | 1 | 19 | 1675 | 2073 |
| 533 | mutagens | 1 | 19 | 1336 | 1733 |
| 533 | coal | 3 | 19 | 1609 | 2925 |
| 540 | Marine Biology | 1 | 18 | 3518 | 3915 |
| 540 | Process Control | 1 | 18 | 1406 | 1824 |
| 540 | Green Technology | 1 | 18 | 903 | 1050 |
| 540 | Hormones | 1 | 18 | 2006 | 2388 |
| 544 | Nanomedicine | 1 | 17 | 486 | 753 |
| 544 | Number Theory | 4 | 17 | 695 | 926 |
| 544 | Discrete Mathematics | 3 | 17 | 336 | 366 |
| 544 | Combinatorial chemistry | 3 | 17 | 927 | 1859 |
| 544 | bioclimatology | 2 | 17 | 1161 | 1851 |
| 544 | Radiation | 2 | 17 | 2614 | 3302 |
| 544 | Crystallography | 4 | 17 | 1517 | 1920 |
| 544 | Visual Perception | 4 | 17 | 1403 | 2880 |
| 544 | graph | 3 | 17 | 336 | 366 |
| 544 | supercritical fluids | 1 | 17 | 677 | 932 |
| 544 | Structure-activity relationship | 3 | 17 | 417 | 834 |
| 555 | Wetland conservation | 2 | 16 | 416 | 794 |
| 555 | plant viruses | 1 | 16 | 396 | 504 |
| 555 | Radio waves | 1 | 16 | 1426 | 1593 |
| 555 | Radio | 2 | 16 | 1871 | 2545 |
| 555 | Industry | 1 | 16 | 457 | 802 |
| 555 | carbon monoxide | 2 | 16 | 431 | 988 |
| 555 | Wetlands | 2 | 16 | 428 | 798 |
| 562 | Astronomy | 2 | 15 | 2813 | 3635 |
| 562 | Cosmology | 8 | 15 | 876 | 1645 |
| 562 | Economic Development | 1 | 15 | 2708 | 2953 |
| 562 | Photogrammetry | 6 | 15 | 545 | 951 |
| 562 | neuronal plasticity | 3 | 15 | 315 | 851 |
| 562 | atmospheric models | 1 | 15 | 953 | 1235 |
| 562 | economic development projects | 1 | 15 | 390 | 496 |
| 562 | econometric models | 1 | 15 | 1022 | 1222 |
| 562 | Kidney diseases | 1 | 15 | 1521 | 1820 |
| 571 | Evolutionary Genetics | 1 | 14 | 1324 | 1696 |
| 571 | Molecular Epidemiology | 1 | 14 | 1324 | 1696 |
| 571 | Quantum electronics | 3 | 14 | 1711 | 2529 |
| 571 | Cognitive neuroscience | 1 | 14 | 1426 | 1771 |
| 571 | Korea | 1 | 14 | 697 | 635 |
| 571 | Methodology | 2 | 14 | 638 | 970 |
| 571 | child abuse | 1 | 14 | 1246 | 1654 |
| 578 | Chemical Ecology | 2 | 13 | 645 | 1208 |
| 578 | Emerging infectious diseases | 2 | 13 | 467 | 1046 |
| 578 | Ichthyology | 6 | 13 | 278 | 864 |
| 578 | Proteome | 1 | 13 | 1847 | 2454 |
| 578 | Fisheries | 6 | 13 | 1157 | 2705 |
| 578 | Fish | 6 | 13 | 208 | 725 |
| 584 | Community Psychology | 2 | 12 | 652 | 1158 |
| 584 | Dynamics | 1 | 12 | 2684 | 2670 |
| 584 | Bifurcation Theory | 1 | 12 | 1119 | 1151 |
| 584 | monoclonal antibodies | 1 | 12 | 648 | 800 |
| 584 | data collection | 2 | 12 | 1382 | 2553 |
| 589 | Food Science | 1 | 11 | 481 | 523 |
| 589 | Computer Vision | 1 | 11 | 1792 | 2235 |
| 589 | Quality Control | 1 | 11 | 3044 | 3646 |
| 589 | Inflammation | 1 | 11 | 2033 | 2786 |
| 589 | food handling | 1 | 11 | 1493 | 2162 |
| 589 | Optoelectronic devices | 2 | 11 | 1221 | 1589 |
| 589 | water supply | 1 | 11 | 1479 | 1939 |
| 589 | Nanotubes | 1 | 11 | 426 | 463 |
| 597 | Geology | 2 | 10 | 3336 | 4510 |
| 597 | Hydrogeology | 2 | 10 | 1023 | 1648 |
| 597 | Fluid Dynamics | 2 | 10 | 1405 | 2112 |
| 597 | Career development | 1 | 10 | 772 | 923 |
| 597 | Molecular recognition | 1 | 10 | 477 | 715 |
| 597 | food contamination | 2 | 10 | 1348 | 2239 |
| 597 | Gerontology | 6 | 10 | 1394 | 3339 |
| 597 | Groundwater | 2 | 10 | 875 | 1466 |
| 597 | radioactive waste | 1 | 10 | 1390 | 2175 |
| 597 | Capital market | 2 | 10 | 504 | 1012 |
| 597 | Host-parasite interactions | 2 | 10 | 1453 | 2763 |
| 597 | industrial waste | 1 | 10 | 1430 | 2185 |
| 597 | Virulence | 2 | 10 | 1321 | 2537 |
| 597 | Food preferences | 2 | 10 | 470 | 983 |
| 597 | Hazardous waste | 1 | 10 | 1604 | 2352 |
| 597 | wetland management | 1 | 10 | 390 | 609 |
| 597 | Vaccines | 2 | 10 | 2335 | 3853 |
| 614 | Computer Engineering | 3 | 9 | 1033 | 2064 |
| 614 | Paleoclimatology | 2 | 9 | 1199 | 1978 |
| 614 | Developmental Psychology | 1 | 9 | 1586 | 2026 |
| 614 | Hydraulic Engineering | 1 | 9 | 1752 | 1979 |
| 614 | Applied Linguistics | 3 | 9 | 588 | 1008 |
| 614 | Clinical Immunology | 1 | 9 | 1974 | 2672 |
| 614 | Plant Morphology | 2 | 9 | 768 | 1333 |
| 614 | Child | 2 | 9 | 2854 | 4405 |
| 614 | Regeneration | 1 | 9 | 161 | 268 |
| 614 | global environmental change | 1 | 9 | 1382 | 2126 |
| 614 | sustainable forestry | 1 | 9 | 270 | 368 |
| 614 | Porous materials | 1 | 9 | 1296 | 1600 |
| 614 | Yeast | 1 | 9 | 768 | 1086 |
| 614 | Scanning electron microscopy | 1 | 9 | 376 | 530 |
| 614 | international cooperation | 1 | 9 | 1107 | 1461 |
| 614 | environmental issues | 1 | 9 | 817 | 1303 |
| 614 | adulthood | 1 | 9 | 230 | 380 |
| 614 | children | 2 | 9 | 637 | 1134 |
| 632 | Clinical Psychology | 1 | 8 | 2047 | 2796 |
| 632 | Computational Intelligence | 2 | 8 | 1417 | 2243 |
| 632 | Adhesion | 2 | 8 | 879 | 1547 |
| 632 | Intelligent Control Systems | 2 | 8 | 1490 | 2065 |
| 632 | Cell adhesion | 1 | 8 | 360 | 603 |
| 632 | Social interaction | 1 | 8 | 566 | 804 |
| 632 | software | 1 | 8 | 1763 | 2483 |
| 632 | adhesives | 2 | 8 | 937 | 1581 |
| 640 | Geriatric Psychiatry | 1 | 7 | 1792 | 2455 |
| 640 | Mental Health | 1 | 7 | 2708 | 3490 |
| 640 | Chemical kinetics | 2 | 7 | 992 | 1507 |
| 640 | Drug delivery systems | 1 | 7 | 2436 | 3332 |
| 640 | Mental Health Services | 1 | 7 | 2073 | 2757 |
| 640 | big data | 3 | 7 | 584 | 1581 |
| 640 | marketing | 2 | 7 | 2127 | 3177 |
| 640 | Diet | 1 | 7 | 3291 | 4700 |
| 640 | toxicity testing | 1 | 7 | 1359 | 2063 |
| 640 | animal diseases | 1 | 7 | 888 | 1380 |
| 640 | Approximation Theory | 4 | 7 | 337 | 727 |
| 640 | Nitric oxide | 1 | 7 | 495 | 926 |
| 652 | Applied Mathematics | 7 | 6 | 570 | 1619 |
| 652 | Bryology | 1 | 6 | 377 | 457 |
| 652 | Public Administration | 2 | 6 | 1686 | 2409 |
| 652 | Medical Physics | 1 | 6 | 2579 | 3260 |
| 652 | Organizational learning | 1 | 6 | 1037 | 1367 |
| 652 | Diabetes mellitus | 1 | 6 | 3060 | 4426 |
| 652 | preventive medicine | 3 | 6 | 1205 | 3056 |
| 652 | Language and Education | 1 | 6 | 301 | 366 |
| 652 | Bacteriology | 2 | 6 | 2158 | 3851 |
| 652 | Calculus of Variations | 5 | 6 | 370 | 863 |
| 652 | Knowledge management | 1 | 6 | 1294 | 1572 |
| 652 | patents | 1 | 6 | 359 | 631 |
| 652 | Ornithology | 2 | 6 | 1163 | 1752 |
| 652 | Health promotion | 3 | 6 | 1423 | 3358 |
| 652 | bryophytes | 1 | 6 | 221 | 284 |
| 652 | heredity | 1 | 6 | 1181 | 1631 |
| 652 | Scandinavia | 1 | 6 | 1226 | 1731 |
| 652 | Birds | 2 | 6 | 1385 | 1988 |
| 652 | food industry | 2 | 6 | 855 | 1831 |
| 652 | data protection | 2 | 6 | 747 | 1375 |
| 652 | Cerebral cortex | 1 | 6 | 1305 | 1884 |
| 652 | Liquid chromatography | 2 | 6 | 697 | 1274 |
| 652 | Diabetes | 1 | 6 | 3189 | 4534 |
| 675 | Biopharmaceutics | 1 | 5 | 1997 | 2768 |
| 675 | Ethics | 1 | 5 | 1646 | 2237 |
| 675 | Freshwater Ecology | 2 | 5 | 377 | 829 |
| 675 | Paleoecology | 1 | 5 | 1437 | 1977 |
| 675 | Health Services Research | 2 | 5 | 2171 | 4225 |
| 675 | Information Retrieval | 1 | 5 | 923 | 1303 |
| 675 | Control Theory | 1 | 5 | 2486 | 3035 |
| 675 | Paleogeography | 1 | 5 | 1284 | 1797 |
| 675 | Quantum Gravity | 4 | 5 | 1682 | 2641 |
| 675 | Primary health care | 2 | 5 | 2165 | 4246 |
| 675 | Customer service | 1 | 5 | 133 | 266 |
| 675 | Phylogenetics | 1 | 5 | 232 | 418 |
| 675 | Professional ethics | 1 | 5 | 546 | 983 |
| 675 | visualization | 3 | 5 | 1718 | 2615 |
| 675 | Algae | 1 | 5 | 1137 | 1539 |
| 675 | Library Science | 1 | 5 | 2142 | 2147 |
| 675 | place marketing | 1 | 5 | 208 | 491 |
| 675 | administrative agencies | 1 | 5 | 498 | 650 |
| 675 | drug evaluation | 1 | 5 | 2265 | 3337 |
| 694 | Sports Medicine | 1 | 4 | 3624 | 4317 |
| 694 | Crystallization | 1 | 4 | 911 | 1202 |
| 694 | micromechanics | 1 | 4 | 905 | 1402 |
| 694 | Sports | 2 | 4 | 2315 | 3406 |
| 694 | Molecules | 2 | 4 | 1702 | 2623 |
| 694 | Mechanics | 1 | 4 | 2135 | 2580 |
| 694 | North America | 1 | 4 | 1448 | 2043 |
| 694 | Germany | 2 | 4 | 862 | 1337 |
| 694 | Imagination | 1 | 4 | 171 | 284 |
| 694 | Consciousness | 1 | 4 | 810 | 1096 |
| 704 | Medical Technology | 1 | 3 | 3232 | 4745 |
| 704 | International Relations | 1 | 3 | 1858 | 2003 |
| 704 | Regional Planning | 1 | 3 | 2365 | 3147 |
| 704 | Probability | 1 | 3 | 1003 | 1542 |
| 704 | Particle Physics | 1 | 3 | 1234 | 1405 |
| 704 | Risk Management | 1 | 3 | 1341 | 2132 |
| 704 | Solar power plants | 1 | 3 | 396 | 761 |
| 704 | Enzyme inhibitors | 1 | 3 | 774 | 1334 |
| 704 | Financial management | 1 | 3 | 860 | 1501 |
| 704 | Photovoltaic Cells | 1 | 3 | 398 | 764 |
| 704 | Risk | 1 | 3 | 959 | 1529 |
| 704 | Russia | 1 | 3 | 461 | 392 |
| 704 | Metallography | 1 | 3 | 1350 | 1992 |
| 704 | Microstructure | 3 | 3 | 916 | 1987 |
| 704 | India | 3 | 3 | 1655 | 3357 |
| 719 | Critical Care | 1 | 2 | 2368 | 3538 |
| 719 | Fuzzy Logic | 1 | 2 | 268 | 596 |
| 719 | Language Acquisition | 1 | 2 | 709 | 1036 |
| 719 | Palynology | 1 | 2 | 502 | 790 |
| 719 | Critical Care Medicine | 1 | 2 | 2089 | 3105 |
| 719 | Health Education | 2 | 2 | 2286 | 4641 |
| 719 | health behavior | 2 | 2 | 1185 | 2670 |
| 719 | Electronic Packaging | 1 | 2 | 460 | 776 |
| 719 | Wireless Communication | 2 | 2 | 598 | 1332 |
| 719 | Labor Supply | 1 | 2 | 131 | 308 |
| 719 | Quantum Optics | 1 | 2 | 1346 | 1822 |
| 719 | Human Capital | 1 | 2 | 480 | 817 |
| 719 | Health | 2 | 2 | 2774 | 5569 |
| 719 | Evolutionary Computation | 1 | 2 | 905 | 1466 |
| 719 | ceramic engineering | 1 | 2 | 167 | 152 |
| 719 | Elderly | 3 | 2 | 1251 | 2247 |
| 719 | older people | 3 | 2 | 1614 | 3272 |
| 719 | Ethnology | 1 | 2 | 2383 | 3034 |
| 719 | Solutions | 1 | 2 | 692 | 1081 |
| 719 | peptides | 1 | 2 | 1626 | 2440 |
| 719 | Tropical Medicine | 1 | 2 | 2976 | 4339 |
| 719 | Electromagnetic fields | 1 | 2 | 688 | 1013 |
| 719 | color | 1 | 2 | 504 | 884 |
| 719 | Atomic spectroscopy | 1 | 2 | 1743 | 2358 |
| 719 | Microwaves | 1 | 2 | 2075 | 2639 |
| 719 | Laser Spectroscopy | 1 | 2 | 1302 | 1774 |
| 719 | Europe | 1 | 2 | 5019 | 6572 |
| 719 | Investments | 1 | 2 | 1051 | 1683 |
| 719 | eugenics | 1 | 2 | 1028 | 1771 |
| 748 | Immunology | 1 | 1 | 5223 | 7044 |
| 748 | Polymer Engineering | 1 | 1 | 272 | 652 |
| 748 | Optoelectronics | 1 | 1 | 1040 | 1553 |
| 748 | Distributed Databases | 1 | 1 | 323 | 565 |
| 748 | Group theory | 1 | 1 | 133 | 242 |
| 748 | Superconductors | 1 | 1 | 1413 | 1909 |
| 748 | Seed technology | 1 | 1 | 32 | 81 |
| 748 | adolescence | 1 | 1 | 1455 | 2336 |
| 748 | Fractional Calculus | 1 | 1 | 307 | 620 |
| 748 | Adolescent Psychology | 1 | 1 | 1353 | 2187 |
| 748 | Parenteral nutrition | 1 | 1 | 1514 | 2469 |
| 748 | Ubiquitous computing | 2 | 1 | 381 | 1015 |
| 748 | Mobile Commerce | 1 | 1 | 730 | 1157 |
| 748 | Adolescent | 1 | 1 | 3305 | 4878 |
| 748 | Seeds | 1 | 1 | 34 | 83 |
| 748 | Antarctica | 1 | 1 | 905 | 1421 |
| 748 | Youth | 1 | 1 | 1092 | 1815 |
| 748 | Government agencies | 1 | 1 | 104 | 259 |
| 748 | Archives | 1 | 1 | 231 | 284 |
| 748 | civil service | 1 | 1 | 618 | 980 |
| 768 | Linguistics | 1 | 0 | 2330 | 3199 |
| 768 | Pathology | 1 | 0 | 3523 | 5371 |
| 768 | Chronobiology | 1 | 0 | 937 | 1613 |
| 768 | Ergonomics | 1 | 0 | 1624 | 2498 |
| 768 | Intercultural Communication | 1 | 0 | 709 | 1258 |
| 768 | Stochastic Processes | 1 | 0 | 1501 | 2323 |
| 768 | Statistical Mechanics | 2 | 0 | 1389 | 2537 |
| 768 | Nutrition physiology | 1 | 0 | 1319 | 2269 |
| 768 | biological clocks | 1 | 0 | 937 | 1613 |
| 768 | Cross-Cultural Studies | 1 | 0 | 1245 | 2194 |
| 768 | Diagnostic Imaging | 1 | 0 | 3351 | 4974 |
| 768 | Spintronics | 1 | 0 | 111 | 300 |
| 768 | dietary supplements | 1 | 0 | 1481 | 2472 |
| 768 | Database Security | 1 | 0 | 217 | 485 |
| 768 | Autoantibodies | 1 | 0 | 944 | 1641 |
| 768 | Autoimmunity | 1 | 0 | 1154 | 1944 |
| 768 | Alloys | 1 | 0 | 604 | 1074 |
| 768 | circadian rhythm | 1 | 0 | 937 | 1613 |
| 768 | Communication in politics | 1 | 0 | 492 | 993 |
| 768 | biological rhythms | 1 | 0 | 888 | 1562 |
| 768 | Autoimmune diseases | 1 | 0 | 1066 | 1860 |
| 768 | Endocrine system | 1 | 0 | 1245 | 1415 |
| 768 | Cell metabolism | 1 | 0 | 1180 | 2009 |
| 768 | Exercise | 1 | 0 | 2186 | 3238 |
| 768 | cycles | 1 | 0 | 346 | 714 |
