| 1 | Science | 85 | 3.6K | 2814 | 3361 |
| 2 | Physics | 99 | 3.4K | 2604 | 3377 |
| 3 | Chemistry | 164 | 3.0K | 1919 | 2843 |
| 4 | Nuclear Physics | 132 | 2.7K | 1116 | 1186 |
| 5 | Oncology | 13 | 2.2K | 1247 | 863 |
| 6 | Molecular Biology | 80 | 2.0K | 2230 | 3005 |
| 7 | Biology | 44 | 1.9K | 3778 | 4339 |
| 8 | Quantum Gravity | 66 | 1.8K | 744 | 736 |
| 9 | Biochemistry | 70 | 1.7K | 2919 | 3322 |
| 10 | Materials | 95 | 1.7K | 1528 | 2004 |
| 11 | Biomedical Engineering | 30 | 1.6K | 1897 | 1284 |
| 12 | Nanotechnology | 65 | 1.6K | 1391 | 1758 |
| 13 | Chemical Engineering | 49 | 1.6K | 1464 | 1594 |
| 14 | Statistics | 8 | 1.5K | 2034 | 557 |
| 15 | Materials Science | 59 | 1.5K | 1341 | 1541 |
| 16 | Electrochemistry | 115 | 1.4K | 735 | 1079 |
| 17 | Biophysics | 49 | 1.4K | 1966 | 1990 |
| 18 | Medicine | 92 | 1.3K | 2663 | 4466 |
| 19 | Building Materials | 26 | 1.3K | 594 | 518 |
| 20 | Energy Conversion | 12 | 1.3K | 690 | 551 |
| 21 | Energy Storage | 11 | 1.3K | 723 | 271 |
| 22 | Natural history | 6 | 1.3K | 3826 | 3392 |
| 23 | Research | 80 | 1.2K | 2313 | 3568 |
| 24 | Analytical Chemistry | 16 | 971 | 2601 | 1779 |
| 25 | Biocompatible Materials | 30 | 952 | 1476 | 1837 |
| 26 | Energy Harvesting | 4 | 941 | 451 | 224 |
| 27 | Education | 67 | 908 | 766 | 825 |
| 28 | Environmental Health | 18 | 877 | 2818 | 2451 |
| 29 | Mathematics | 129 | 866 | 1257 | 1700 |
| 30 | Cell differentiation | 7 | 847 | 1402 | 998 |
| 31 | Ecology | 22 | 834 | 3228 | 3441 |
| 32 | Biochemical Engineering | 14 | 831 | 1844 | 2018 |
| 33 | Petroleum Engineering | 38 | 827 | 162 | 165 |
| 34 | Optics | 51 | 822 | 1691 | 1521 |
| 35 | Astrophysics | 41 | 813 | 1384 | 1632 |
| 36 | Signal Processing | 15 | 784 | 983 | 498 |
| 37 | Pollution | 30 | 763 | 2264 | 2999 |
| 38 | Hypertension | 2 | 718 | 2311 | 1041 |
| 38 | Cardiovascular system | 2 | 718 | 2263 | 1079 |
| 40 | Artificial Intelligence | 31 | 703 | 1375 | 1381 |
| 41 | fuel cells | 13 | 676 | 698 | 670 |
| 42 | Astronomy | 48 | 670 | 1090 | 1593 |
| 43 | Medical Laboratory Science | 7 | 654 | 1649 | 927 |
| 44 | Nanostructured Materials | 24 | 620 | 1470 | 1614 |
| 45 | Biotechnology | 30 | 604 | 2636 | 3593 |
| 46 | environmental protection | 16 | 586 | 1782 | 1681 |
| 47 | Manufacturing Processes | 22 | 567 | 943 | 943 |
| 48 | Energy Policy | 13 | 554 | 1461 | 1554 |
| 49 | Renewable Energy Sources | 16 | 550 | 1195 | 1822 |
| 50 | Surface Chemistry | 20 | 545 | 1921 | 2012 |
| 51 | gene mapping | 9 | 540 | 1413 | 1195 |
| 52 | environmental pollution | 21 | 526 | 2131 | 2713 |
| 53 | Sociology | 18 | 520 | 1295 | 1182 |
| 54 | peace | 14 | 517 | 180 | 178 |
| 55 | Statistical physics | 37 | 504 | 1442 | 1734 |
| 56 | Environmental Policy | 16 | 501 | 1535 | 2039 |
| 57 | Genetics | 5 | 499 | 3991 | 2851 |
| 58 | coal | 12 | 497 | 853 | 869 |
| 59 | Spectrum analysis | 25 | 495 | 2130 | 2372 |
| 60 | Engineering Geology | 30 | 491 | 385 | 660 |
| 61 | Colloids | 15 | 471 | 2160 | 2249 |
| 62 | Bacterial infections | 14 | 470 | 321 | 614 |
| 63 | Condensed Matter | 22 | 466 | 1873 | 1842 |
| 64 | Bioengineering | 16 | 444 | 2404 | 3075 |
| 65 | DNA polymerases | 1 | 423 | 965 | 525 |
| 66 | educational planning | 5 | 422 | 292 | 124 |
| 67 | Solid State Physics | 24 | 420 | 1951 | 2067 |
| 68 | Infections | 9 | 419 | 776 | 843 |
| 69 | Environment | 9 | 405 | 3748 | 4274 |
| 70 | Developing countries | 22 | 404 | 803 | 1069 |
| 71 | Production Engineering | 17 | 396 | 854 | 740 |
| 72 | nanoscience | 13 | 395 | 1735 | 1948 |
| 73 | Cell death | 3 | 389 | 1449 | 966 |
| 74 | marketing | 4 | 387 | 1831 | 1002 |
| 75 | Genetic engineering | 11 | 381 | 1307 | 1467 |
| 76 | Catalysis | 16 | 373 | 2122 | 2491 |
| 77 | Zeolites | 4 | 372 | 922 | 493 |
| 77 | Stem cells | 3 | 372 | 1966 | 1092 |
| 79 | Engineering | 31 | 371 | 1551 | 1931 |
| 80 | Environmental Engineering | 16 | 369 | 2104 | 2523 |
| 81 | Biosensors | 7 | 367 | 935 | 1017 |
| 82 | War and Society | 3 | 364 | 223 | 137 |
| 82 | warfare | 2 | 364 | 411 | 161 |
| 82 | international cooperation | 3 | 364 | 670 | 253 |
| 85 | Environmental Management | 9 | 352 | 2027 | 2203 |
| 86 | Soil Mechanics | 19 | 349 | 473 | 668 |
| 87 | Technology | 17 | 344 | 2243 | 2292 |
| 88 | Telecommunication Systems | 22 | 343 | 472 | 584 |
| 89 | management | 19 | 342 | 1563 | 1988 |
| 90 | Robotics | 18 | 338 | 685 | 829 |
| 91 | Composite Materials | 12 | 327 | 1638 | 1910 |
| 92 | Public Administration | 20 | 319 | 523 | 561 |
| 92 | Optical materials | 11 | 319 | 1740 | 1895 |
| 94 | Economic History | 28 | 318 | 1324 | 1511 |
| 95 | Fiber Optics | 12 | 310 | 217 | 112 |
| 96 | Economics | 47 | 309 | 1326 | 2164 |
| 97 | Environmental monitoring | 12 | 305 | 2445 | 3046 |
| 98 | Solar Energy | 7 | 304 | 1312 | 1195 |
| 99 | Geophysics | 21 | 299 | 1828 | 2455 |
| 100 | Public Health | 32 | 298 | 2175 | 4129 |
| 101 | Mechanical Engineering | 16 | 296 | 1326 | 1055 |
| 102 | particles | 6 | 290 | 733 | 399 |
| 103 | Pharmaceutical Chemistry | 26 | 288 | 1684 | 2953 |
| 104 | Data Mining | 11 | 287 | 863 | 1080 |
| 105 | Structural Engineering | 17 | 286 | 779 | 931 |
| 105 | Industrial Safety | 3 | 286 | 1384 | 529 |
| 107 | Bioelectronics | 5 | 281 | 971 | 1087 |
| 108 | Water | 10 | 272 | 1637 | 2190 |
| 109 | Ocean Engineering | 8 | 258 | 1183 | 1093 |
| 110 | Cosmology | 9 | 255 | 1019 | 692 |
| 111 | Sustainable Development | 9 | 252 | 1300 | 1508 |
| 112 | Teaching | 7 | 251 | 1270 | 834 |
| 113 | United States | 18 | 249 | 2599 | 3381 |
| 114 | nucleic acids | 3 | 246 | 2116 | 1736 |
| 115 | Optoelectronics | 7 | 245 | 345 | 100 |
| 116 | Economic Development | 9 | 241 | 1074 | 1325 |
| 117 | Electronics | 15 | 236 | 2065 | 2015 |
| 118 | International Relations | 19 | 234 | 456 | 460 |
| 119 | Rock Mechanics | 19 | 232 | 364 | 637 |
| 120 | Electrical Engineering | 20 | 231 | 1674 | 1522 |
| 121 | Pharmacology | 10 | 227 | 3964 | 4403 |
| 122 | Cell Biology | 8 | 224 | 3291 | 4036 |
| 123 | nuclear astrophysics | 5 | 221 | 463 | 378 |
| 123 | Asia | 21 | 221 | 990 | 1300 |
| 125 | Genetic regulation | 1 | 216 | 2273 | 1196 |
| 125 | cloning | 1 | 216 | 1332 | 803 |
| 127 | Immunology | 7 | 215 | 3263 | 3472 |
| 128 | data collection | 9 | 214 | 627 | 925 |
| 129 | Polymers | 18 | 212 | 2595 | 3298 |
| 129 | Metals | 7 | 212 | 1728 | 1567 |
| 131 | Granular materials | 4 | 209 | 525 | 326 |
| 132 | Gerontology | 5 | 206 | 1891 | 1201 |
| 133 | Numerical Analysis | 21 | 203 | 1011 | 1334 |
| 133 | Detectors | 11 | 203 | 480 | 308 |
| 135 | Political Science | 17 | 202 | 867 | 890 |
| 136 | Neurology | 8 | 201 | 4229 | 4782 |
| 137 | Economic Assistance | 8 | 200 | 425 | 640 |
| 138 | behavioral medicine | 2 | 199 | 1987 | 1253 |
| 138 | human behavior | 2 | 199 | 3504 | 2537 |
| 140 | Carbon | 7 | 197 | 1011 | 1378 |
| 141 | Social Sciences | 20 | 196 | 1631 | 1909 |
| 142 | Integrated Circuits | 9 | 195 | 426 | 140 |
| 143 | enzymes | 6 | 194 | 1283 | 1335 |
| 144 | Inclusive Education | 5 | 193 | 95 | 62 |
| 145 | Biodiversity | 1 | 189 | 4144 | 1958 |
| 146 | Solitons | 13 | 187 | 415 | 690 |
| 146 | Fractals | 13 | 187 | 520 | 769 |
| 146 | Chaos | 13 | 187 | 415 | 690 |
| 149 | Psychology | 7 | 185 | 4220 | 3906 |
| 149 | Nursing | 16 | 185 | 842 | 1036 |
| 151 | Wireless Communication Systems | 14 | 184 | 1093 | 1223 |
| 152 | Nanostructures | 11 | 179 | 1356 | 1964 |
| 153 | thinking | 3 | 178 | 289 | 148 |
| 153 | Creativity | 2 | 178 | 414 | 164 |
| 155 | Eurasia | 15 | 173 | 36 | 88 |
| 156 | Drug delivery systems | 2 | 172 | 2181 | 1496 |
| 157 | Integration | 4 | 171 | 114 | 69 |
| 158 | Nanoparticles | 6 | 169 | 1655 | 1701 |
| 158 | concrete | 9 | 169 | 616 | 1045 |
| 160 | Telecommunications | 13 | 168 | 249 | 335 |
| 160 | Computer-Aided Design | 6 | 168 | 978 | 847 |
| 162 | Europe | 30 | 167 | 1130 | 2298 |
| 163 | Development | 6 | 166 | 623 | 798 |
| 164 | Molecular cloning | 10 | 165 | 877 | 1265 |
| 164 | Genetic recombination | 10 | 165 | 853 | 1257 |
| 164 | infection | 7 | 165 | 1356 | 1679 |
| 164 | Recombinant DNA | 10 | 165 | 943 | 1356 |
| 168 | sanitation | 3 | 164 | 1860 | 2016 |
| 169 | Immunotherapy | 4 | 159 | 2014 | 2064 |
| 170 | Solid State Chemistry | 4 | 155 | 2591 | 1945 |
| 171 | Computer Science | 9 | 153 | 1462 | 1315 |
| 172 | world | 2 | 152 | 1055 | 893 |
| 173 | Multilingualism | 8 | 151 | 106 | 160 |
| 174 | computer networks | 12 | 149 | 1388 | 1871 |
| 175 | Microbiology | 10 | 148 | 4963 | 6922 |
| 176 | Operations Research | 12 | 147 | 1319 | 1762 |
| 176 | lasers | 7 | 147 | 1478 | 1269 |
| 178 | energy conservation | 7 | 145 | 1497 | 2192 |
| 179 | Database Management | 2 | 143 | 1115 | 692 |
| 179 | Mental Disorders | 4 | 143 | 3355 | 3218 |
| 179 | Measurement | 8 | 143 | 809 | 1009 |
| 182 | Immunity | 6 | 142 | 1709 | 2686 |
| 183 | Earthquake Engineering | 9 | 140 | 854 | 1139 |
| 184 | Genomics | 16 | 139 | 1755 | 3521 |
| 185 | Comparative Education | 8 | 137 | 105 | 84 |
| 186 | polymerization | 12 | 136 | 2591 | 3309 |
| 187 | Cell division | 1 | 134 | 1187 | 549 |
| 188 | Neural circuitry | 10 | 133 | 1209 | 1991 |
| 189 | Photonics | 13 | 132 | 1009 | 1784 |
| 189 | miniaturization | 7 | 132 | 1467 | 2112 |
| 191 | data protection | 5 | 130 | 435 | 307 |
| 192 | Structural design | 9 | 129 | 483 | 687 |
| 193 | Humanities | 11 | 128 | 1043 | 876 |
| 194 | Psychiatry | 3 | 127 | 5241 | 4572 |
| 194 | Archaeology | 8 | 127 | 959 | 1004 |
| 194 | Mathematical Physics | 14 | 127 | 1878 | 2179 |
| 194 | Multimedia Systems | 5 | 127 | 1573 | 1128 |
| 194 | Mineral resources | 4 | 127 | 517 | 587 |
| 199 | Drug design | 23 | 126 | 511 | 1822 |
| 200 | dietary supplements | 3 | 124 | 933 | 821 |
| 200 | medical education | 3 | 124 | 2432 | 1576 |
| 202 | Cell cycle | 2 | 123 | 480 | 274 |
| 202 | cell proliferation | 2 | 123 | 541 | 296 |
| 202 | energy development | 2 | 123 | 1367 | 953 |
| 205 | Nonlinear Dynamics | 11 | 122 | 1459 | 1928 |
| 206 | System analysis | 7 | 120 | 1995 | 2143 |
| 207 | Mental Health | 1 | 119 | 3362 | 1447 |
| 207 | Mental Health Services | 1 | 119 | 2585 | 1143 |
| 207 | Tunneling | 3 | 119 | 357 | 405 |
| 207 | underground construction | 3 | 119 | 357 | 405 |
| 207 | Cancer | 11 | 119 | 2555 | 4194 |
| 212 | Product Design | 5 | 118 | 456 | 357 |
| 213 | Clinical Chemistry | 1 | 117 | 5073 | 3329 |
| 213 | Chromosome mapping | 8 | 117 | 1373 | 2374 |
| 215 | Mining Engineering | 10 | 116 | 264 | 463 |
| 215 | Sociolinguistics | 7 | 116 | 288 | 312 |
| 215 | Diagnostic Imaging | 6 | 116 | 1888 | 2014 |
| 218 | Systems Engineering | 8 | 115 | 1555 | 1674 |
| 219 | Computational Biology | 12 | 114 | 1707 | 3045 |
| 219 | Production Management | 5 | 114 | 941 | 1363 |
| 219 | mathematical analysis | 27 | 114 | 1062 | 1682 |
| 222 | Obstetrics | 4 | 111 | 2711 | 2567 |
| 222 | Medical genetics | 8 | 111 | 2274 | 3742 |
| 222 | civilization | 12 | 111 | 732 | 261 |
| 225 | Oxidative stress | 2 | 110 | 1656 | 1621 |
| 225 | Cellular senescence | 2 | 110 | 1085 | 1026 |
| 227 | Structural dynamics | 5 | 109 | 948 | 1209 |
| 227 | Microelectronics | 8 | 109 | 1392 | 1998 |
| 227 | air quality management | 8 | 109 | 238 | 570 |
| 230 | Molecules | 10 | 108 | 1044 | 1288 |
| 230 | China | 14 | 108 | 1541 | 2791 |
| 232 | biological evolution | 6 | 107 | 1795 | 2673 |
| 233 | Mechatronics | 5 | 105 | 615 | 618 |
| 233 | Women's health | 6 | 105 | 1037 | 1293 |
| 235 | Toxicology | 7 | 104 | 4044 | 5427 |
| 235 | International Education | 8 | 104 | 80 | 177 |
| 237 | Rheumatology | 3 | 103 | 1558 | 1519 |
| 237 | environmental issues | 3 | 103 | 498 | 522 |
| 239 | Water pollution | 5 | 102 | 2544 | 3278 |
| 239 | Ethnic relations | 11 | 102 | 230 | 343 |
| 239 | Electrochemical Analysis | 6 | 102 | 1300 | 1581 |
| 242 | Industrial Engineering | 12 | 101 | 1087 | 1944 |
| 242 | Language Policy | 6 | 101 | 37 | 96 |
| 242 | drug resistance | 4 | 101 | 694 | 863 |
| 242 | Technological Innovations | 4 | 101 | 1028 | 1054 |
| 242 | Language planning | 6 | 101 | 83 | 59 |
| 247 | arthritis | 1 | 100 | 2259 | 1821 |
| 247 | Australia | 6 | 100 | 1579 | 1682 |
| 249 | Inflammation | 2 | 99 | 1892 | 1737 |
| 249 | Spine | 1 | 99 | 1320 | 944 |
| 249 | Fuzzy systems | 11 | 99 | 869 | 1263 |
| 252 | Epidemiology | 21 | 98 | 1802 | 4480 |
| 252 | solar power | 3 | 98 | 983 | 1162 |
| 252 | Bioinformatics | 11 | 98 | 1252 | 2375 |
| 252 | solar cells | 3 | 98 | 1084 | 1268 |
| 252 | Educational evaluation | 3 | 98 | 175 | 111 |
| 257 | Computer Graphics | 5 | 96 | 1519 | 1574 |
| 257 | Dynamics | 7 | 96 | 1528 | 1483 |
| 257 | biomedicine | 1 | 96 | 1904 | 975 |
| 260 | Metabolism | 4 | 94 | 3049 | 3816 |
| 261 | Logic | 6 | 93 | 358 | 273 |
| 261 | Eastern Europe | 17 | 93 | 268 | 503 |
| 263 | global environmental change | 1 | 92 | 1719 | 1280 |
| 264 | Microwaves | 9 | 89 | 769 | 735 |
| 265 | Human-Computer Interaction | 4 | 88 | 1566 | 1594 |
| 265 | Nationalism | 10 | 88 | 128 | 199 |
| 265 | energy resources | 2 | 88 | 1905 | 2228 |
| 268 | Cytology | 8 | 87 | 3448 | 5404 |
| 268 | machinery | 4 | 87 | 821 | 761 |
| 268 | construction industry | 3 | 87 | 157 | 99 |
| 271 | Anthropology | 6 | 85 | 1319 | 1384 |
| 271 | vibration | 7 | 85 | 955 | 1299 |
| 271 | Human evolution | 4 | 85 | 406 | 571 |
| 271 | carbon monoxide | 2 | 85 | 467 | 522 |
| 275 | Nanochemistry | 5 | 84 | 1125 | 1343 |
| 275 | Pharmaceutical Technology | 3 | 84 | 1819 | 1868 |
| 275 | Vaccines | 4 | 84 | 1971 | 2358 |
| 278 | mass transfer | 5 | 83 | 1511 | 1940 |
| 279 | Municipal Engineering | 3 | 82 | 420 | 391 |
| 279 | Waste management | 3 | 82 | 1737 | 1485 |
| 279 | Information Science | 6 | 82 | 2100 | 2873 |
| 282 | Chemical industry | 5 | 81 | 1262 | 1263 |
| 283 | Hydraulic Engineering | 2 | 80 | 1560 | 1175 |
| 283 | Qualitative Research | 3 | 80 | 574 | 512 |
| 285 | Educational Technology | 11 | 79 | 786 | 1595 |
| 285 | Oncogenes | 2 | 79 | 1639 | 2072 |
| 285 | Aging | 5 | 79 | 2858 | 3368 |
| 288 | Drug targeting | 1 | 78 | 699 | 483 |
| 288 | Radio wave propagation | 6 | 78 | 639 | 719 |
| 288 | drug evaluation | 1 | 78 | 2634 | 1636 |
| 291 | Animal Behavior | 1 | 77 | 3263 | 2597 |
| 291 | Mechanics | 4 | 77 | 1437 | 1212 |
| 293 | Cybernetics | 4 | 76 | 1368 | 1511 |
| 293 | Control Theory | 8 | 76 | 1273 | 1575 |
| 293 | Child | 6 | 76 | 2200 | 2866 |
| 293 | microwave antennas | 5 | 76 | 359 | 355 |
| 293 | economic policy | 17 | 76 | 1154 | 2111 |
| 293 | Fluorescence | 3 | 76 | 516 | 393 |
| 299 | Anatomy | 3 | 74 | 2395 | 2442 |
| 299 | Embryology | 2 | 74 | 2142 | 2266 |
| 299 | Sustainable Engineering | 5 | 74 | 1506 | 2245 |
| 299 | Developmental Biology | 2 | 74 | 2886 | 3001 |
| 299 | natural gas | 4 | 74 | 380 | 518 |
| 299 | Growth | 2 | 74 | 1648 | 1923 |
| 305 | Cognitive Radio Networks | 2 | 73 | 189 | 97 |
| 305 | indoor air pollution | 4 | 73 | 353 | 548 |
| 305 | Ventilation | 4 | 73 | 477 | 639 |
| 305 | Sick building syndrome | 4 | 73 | 353 | 548 |
| 309 | Molecular Spectroscopy | 6 | 72 | 1530 | 2134 |
| 309 | probabilities | 4 | 72 | 1329 | 1036 |
| 311 | Transportation | 3 | 71 | 1926 | 1896 |
| 312 | Neurophysiology | 3 | 70 | 3367 | 3899 |
| 312 | DNA repair | 3 | 70 | 342 | 459 |
| 314 | Geochemistry | 7 | 69 | 1611 | 2504 |
| 314 | Radiation | 8 | 69 | 1667 | 2474 |
| 314 | optical devices | 3 | 69 | 604 | 518 |
| 317 | ozone | 1 | 68 | 316 | 115 |
| 317 | educational innovations | 4 | 68 | 465 | 585 |
| 319 | Obesity | 3 | 67 | 2479 | 3100 |
| 319 | genome | 6 | 67 | 1389 | 2728 |
| 321 | Philosophy | 13 | 66 | 980 | 909 |
| 321 | Materials Engineering | 2 | 66 | 1133 | 657 |
| 321 | Automation | 6 | 66 | 1606 | 2186 |
| 321 | cultural pluralism | 4 | 66 | 350 | 373 |
| 325 | Pharmacy | 6 | 65 | 1830 | 2877 |
| 325 | Medical Technology | 3 | 65 | 2261 | 2577 |
| 325 | Infection control | 2 | 65 | 1038 | 1032 |
| 325 | Travel | 6 | 65 | 628 | 995 |
| 329 | Civil Engineering | 3 | 64 | 2368 | 1650 |
| 329 | Green Chemistry | 3 | 64 | 1998 | 2628 |
| 329 | Social Networks | 2 | 64 | 473 | 424 |
| 329 | complementary therapies | 3 | 64 | 2462 | 2575 |
| 329 | Luminescence | 4 | 64 | 1414 | 1511 |
| 329 | Therapeutics | 4 | 64 | 1938 | 2809 |
| 329 | Molecular structure | 6 | 64 | 2189 | 3017 |
| 336 | Digital electronics | 1 | 63 | 711 | 237 |
| 337 | Law | 2 | 61 | 2244 | 839 |
| 337 | Geotechnical Engineering | 5 | 61 | 596 | 845 |
| 337 | Special Education | 2 | 61 | 1059 | 749 |
| 337 | internet | 6 | 61 | 1025 | 1461 |
| 341 | Nondestructive testing | 1 | 60 | 1392 | 817 |
| 341 | Greenhouse gases | 2 | 60 | 492 | 645 |
| 341 | Soviet Union | 7 | 60 | 462 | 451 |
| 344 | Information Technology | 6 | 59 | 2175 | 2779 |
| 344 | Alternative Medicine | 2 | 59 | 2710 | 2585 |
| 344 | actuators | 2 | 59 | 2968 | 3196 |
| 344 | transducers | 2 | 59 | 2968 | 3196 |
| 348 | Environmental Law | 2 | 58 | 1610 | 2217 |
| 348 | Online social networks | 1 | 58 | 760 | 378 |
| 348 | ethnic groups | 3 | 58 | 354 | 408 |
| 348 | race relations | 3 | 58 | 629 | 609 |
| 352 | Quantum Optics | 5 | 57 | 855 | 1069 |
| 352 | Atomic spectroscopy | 5 | 57 | 1101 | 1424 |
| 352 | Laser Spectroscopy | 5 | 57 | 792 | 1002 |
| 352 | drugs | 4 | 57 | 2422 | 3207 |
| 352 | Kidney diseases | 5 | 57 | 958 | 1498 |
| 357 | Noise | 2 | 56 | 235 | 114 |
| 357 | Sound | 2 | 56 | 1280 | 705 |
| 359 | air quality | 7 | 55 | 73 | 384 |
| 360 | Neurobiology | 1 | 54 | 3091 | 2871 |
| 360 | Analytical Biochemistry | 5 | 54 | 1688 | 2542 |
| 360 | Telecommunication | 11 | 54 | 1362 | 2414 |
| 363 | Traffic Engineering | 1 | 53 | 840 | 699 |
| 363 | Engineering Mathematics | 9 | 53 | 1815 | 2599 |
| 363 | Political Sociology | 6 | 53 | 324 | 521 |
| 363 | Highway Engineering | 1 | 53 | 809 | 502 |
| 363 | Metallurgy | 5 | 53 | 2323 | 2766 |
| 368 | Hydrology | 7 | 52 | 2049 | 3261 |
| 368 | International security | 2 | 52 | 306 | 434 |
| 368 | software | 3 | 52 | 1141 | 1607 |
| 368 | conflict management | 2 | 52 | 373 | 445 |
| 372 | Bioinorganic chemistry | 4 | 51 | 1428 | 1973 |
| 372 | Radioisotopes | 4 | 51 | 1272 | 1405 |
| 372 | Tropical Medicine | 5 | 51 | 1863 | 2630 |
| 372 | Diabetes | 2 | 51 | 3237 | 3660 |
| 376 | Environmental Chemistry | 3 | 50 | 2684 | 3485 |
| 376 | Fracture mechanics | 4 | 50 | 1441 | 1873 |
| 376 | Courts | 1 | 50 | 97 | 23 |
| 376 | Wind power | 4 | 50 | 267 | 410 |
| 376 | Neurons | 1 | 50 | 1218 | 1624 |
| 376 | Central Asia | 2 | 50 | 318 | 242 |
| 382 | Pathology | 6 | 49 | 2165 | 3848 |
| 382 | Neurochemistry | 3 | 49 | 2780 | 3549 |
| 382 | Environmental Ethics | 1 | 49 | 385 | 146 |
| 382 | Environmental Geology | 2 | 49 | 2308 | 2404 |
| 382 | Quantum Chemistry | 3 | 49 | 1087 | 963 |
| 382 | Nonlinear functional analysis | 5 | 49 | 1045 | 1372 |
| 388 | Health Policy | 1 | 48 | 4796 | 3569 |
| 388 | Photochemistry | 4 | 48 | 1910 | 2667 |
| 388 | Photobiology | 4 | 48 | 1479 | 2154 |
| 391 | Econometrics | 4 | 47 | 1369 | 1572 |
| 391 | Virology | 6 | 47 | 2816 | 5226 |
| 393 | Nutrition | 5 | 46 | 4355 | 6494 |
| 393 | Smart Materials | 1 | 46 | 1823 | 1348 |
| 393 | Primary health care | 6 | 46 | 1517 | 2721 |
| 393 | Educational Change | 2 | 46 | 81 | 121 |
| 393 | cell physiology | 5 | 46 | 1451 | 2763 |
| 398 | health planning | 8 | 45 | 1547 | 3085 |
| 399 | Stochastic Processes | 3 | 44 | 1113 | 1142 |
| 399 | Knowledge | 4 | 44 | 445 | 470 |
| 399 | catalytic activity | 2 | 44 | 889 | 1078 |
| 399 | Cement | 2 | 44 | 852 | 1142 |
| 403 | Radio | 5 | 42 | 748 | 944 |
| 404 | Meteorology | 2 | 41 | 3226 | 3826 |
| 404 | Evolutionary Genetics | 3 | 41 | 835 | 1334 |
| 404 | Molecular Epidemiology | 3 | 41 | 835 | 1334 |
| 404 | ethnicity | 7 | 41 | 434 | 818 |
| 404 | Child Development | 4 | 41 | 2021 | 3116 |
| 404 | Intelligent Control Systems | 7 | 41 | 770 | 1262 |
| 404 | Ethnology | 8 | 41 | 1017 | 1766 |
| 404 | Radio waves | 3 | 41 | 419 | 398 |
| 404 | Southeast Asia | 3 | 41 | 467 | 405 |
| 404 | atmosphere | 2 | 41 | 1175 | 1438 |
| 414 | Neurotoxicology | 1 | 40 | 1197 | 1203 |
| 414 | Pharmacokinetics | 1 | 40 | 2001 | 1662 |
| 414 | Child welfare | 5 | 40 | 947 | 1658 |
| 414 | Diet | 2 | 40 | 3098 | 3924 |
| 418 | Pediatrics | 3 | 39 | 3227 | 4377 |
| 418 | Internet of Things | 3 | 39 | 929 | 1082 |
| 418 | Disability Studies | 1 | 39 | 605 | 378 |
| 418 | poverty | 2 | 39 | 621 | 762 |
| 418 | Learning disabilities | 1 | 39 | 1490 | 1177 |
| 418 | Lightweight concrete | 1 | 39 | 798 | 1040 |
| 418 | Entropy | 4 | 39 | 1169 | 1522 |
| 418 | Trademarks | 2 | 39 | 166 | 182 |
| 418 | Earth Sciences | 8 | 39 | 2529 | 4431 |
| 427 | Geography | 3 | 38 | 2755 | 3342 |
| 427 | Public Policy | 3 | 38 | 2138 | 3064 |
| 427 | Biomass Energy | 3 | 38 | 2979 | 4122 |
| 427 | Medical Ethics | 4 | 38 | 1157 | 1604 |
| 427 | Social welfare | 1 | 38 | 1285 | 873 |
| 427 | Diplomatic relations | 3 | 38 | 869 | 561 |
| 433 | Agricultural Chemistry | 1 | 37 | 3948 | 3631 |
| 433 | Systems Biology | 5 | 37 | 1545 | 3005 |
| 433 | Food additives | 2 | 37 | 1715 | 2241 |
| 433 | hydrocolloids | 2 | 37 | 857 | 1440 |
| 437 | Calorimetry | 1 | 36 | 2282 | 1751 |
| 437 | reasoning | 1 | 36 | 849 | 627 |
| 437 | rehabilitation | 4 | 36 | 2348 | 3597 |
| 437 | Nonlinear systems | 2 | 36 | 909 | 909 |
| 437 | Thermal analysis | 1 | 36 | 2282 | 1751 |
| 442 | Human genetics | 3 | 35 | 2719 | 4719 |
| 442 | Higher Education | 3 | 35 | 597 | 827 |
| 442 | Cryptography | 3 | 35 | 755 | 707 |
| 442 | Statistical Mechanics | 1 | 35 | 2268 | 1335 |
| 442 | Technology Assessment | 1 | 35 | 849 | 970 |
| 442 | Bioethics | 3 | 35 | 1015 | 1280 |
| 442 | Computational Intelligence | 1 | 35 | 2085 | 1391 |
| 442 | Business Ethics | 1 | 35 | 1646 | 1792 |
| 442 | Developmental Disabilities | 2 | 35 | 1390 | 1895 |
| 442 | Reproduction | 5 | 35 | 2232 | 3721 |
| 442 | Bones | 1 | 35 | 1756 | 1754 |
| 453 | Islam | 8 | 34 | 313 | 553 |
| 453 | free radicals | 1 | 34 | 2553 | 2795 |
| 455 | Entrepreneurship | 4 | 33 | 1011 | 1797 |
| 455 | International Finance | 4 | 33 | 1587 | 2333 |
| 455 | Broadcasting | 1 | 33 | 389 | 320 |
| 455 | curriculum evaluation | 5 | 33 | 246 | 588 |
| 455 | water supply | 3 | 33 | 1110 | 1821 |
| 455 | Quality of life | 2 | 33 | 2282 | 3037 |
| 455 | chromatin | 1 | 33 | 358 | 453 |
| 462 | Microbial Ecology | 3 | 32 | 2718 | 4593 |
| 462 | Neuroplasticity | 3 | 32 | 413 | 849 |
| 462 | Food | 1 | 32 | 5459 | 5321 |
| 462 | neuronal plasticity | 3 | 32 | 333 | 746 |
| 462 | older people | 3 | 32 | 2054 | 2190 |
| 462 | Transplantation | 2 | 32 | 1755 | 2215 |
| 468 | Marine Biology | 3 | 31 | 2958 | 4047 |
| 468 | Education policy | 2 | 31 | 101 | 177 |
| 468 | Green Technology | 2 | 31 | 668 | 876 |
| 468 | Marine Pollution | 3 | 31 | 1408 | 2415 |
| 472 | Business | 4 | 30 | 2287 | 3339 |
| 472 | nursing ethics | 1 | 30 | 547 | 560 |
| 472 | Organometallic compounds | 2 | 30 | 1745 | 1988 |
| 472 | particle beams | 3 | 30 | 246 | 369 |
| 476 | Diagnosis | 2 | 29 | 972 | 1232 |
| 476 | Porous materials | 4 | 29 | 738 | 1230 |
| 476 | disease susceptibility | 2 | 29 | 520 | 814 |
| 476 | biochemical markers | 2 | 29 | 1269 | 1691 |
| 476 | investigative techniques | 1 | 29 | 342 | 461 |
| 476 | symptoms | 2 | 29 | 520 | 814 |
| 482 | Global Health | 6 | 28 | 838 | 2010 |
| 482 | Functional Analysis | 6 | 28 | 1089 | 1645 |
| 482 | Allergy | 2 | 28 | 1811 | 2507 |
| 482 | European Union | 2 | 28 | 238 | 289 |
| 482 | Culture | 5 | 28 | 934 | 1371 |
| 482 | Plasma devices | 1 | 28 | 643 | 624 |
| 488 | Group Identity | 4 | 27 | 37 | 123 |
| 489 | Electromagnetism | 3 | 26 | 973 | 1222 |
| 489 | Physical organic chemistry | 4 | 26 | 1444 | 2301 |
| 489 | Computational Fluid Dynamics | 2 | 26 | 978 | 1229 |
| 489 | Chemical kinetics | 3 | 26 | 932 | 1105 |
| 489 | Machining | 2 | 26 | 220 | 264 |
| 489 | Bioorganic chemistry | 4 | 26 | 2903 | 4577 |
| 489 | Learning | 3 | 26 | 1537 | 2389 |
| 496 | Heterocyclic chemistry | 1 | 25 | 1197 | 782 |
| 496 | Combustion | 2 | 25 | 1711 | 2172 |
| 496 | Corporate Social Responsibility | 2 | 25 | 450 | 956 |
| 496 | environmental auditing | 2 | 25 | 471 | 969 |
| 496 | Jurisprudence | 1 | 25 | 1839 | 1569 |
| 496 | Heterocyclic compounds | 1 | 25 | 1876 | 1513 |
| 502 | Systems Analysis | 2 | 24 | 1630 | 2049 |
| 502 | Physical Chemistry | 2 | 24 | 3148 | 3803 |
| 502 | Groundwater | 1 | 24 | 1316 | 1321 |
| 505 | Hydrogeology | 2 | 23 | 1150 | 1513 |
| 505 | Political Psychology | 1 | 23 | 616 | 738 |
| 505 | Geothermal Energy | 2 | 23 | 376 | 605 |
| 505 | Microprocessors | 1 | 23 | 1173 | 1024 |
| 505 | Financial management | 1 | 23 | 1061 | 1290 |
| 505 | Antibodies | 1 | 23 | 1385 | 1478 |
| 505 | Antigens | 1 | 23 | 1759 | 1848 |
| 505 | Planets | 2 | 23 | 2074 | 2951 |
| 505 | Autism | 2 | 23 | 979 | 1606 |
| 505 | language | 6 | 23 | 589 | 1396 |
| 515 | Organic Chemistry | 3 | 22 | 3583 | 4897 |
| 515 | Applied Linguistics | 3 | 22 | 700 | 915 |
| 515 | Quantum electronics | 2 | 22 | 1651 | 1589 |
| 515 | Educational Psychology | 2 | 22 | 1907 | 2378 |
| 515 | Vaccination | 1 | 22 | 605 | 742 |
| 515 | Magnetic Materials | 2 | 22 | 2021 | 2407 |
| 515 | School Improvement Programs | 2 | 22 | 41 | 81 |
| 515 | innovation | 2 | 22 | 856 | 1393 |
| 515 | Social work | 4 | 22 | 1434 | 2383 |
| 524 | Geriatrics | 3 | 21 | 3833 | 5224 |
| 524 | Health Services Administration | 5 | 21 | 925 | 2445 |
| 524 | Algebra | 7 | 21 | 1225 | 1632 |
| 524 | Medical Oncology | 2 | 21 | 2687 | 3738 |
| 524 | Neurosurgery | 1 | 21 | 1978 | 2230 |
| 524 | Organizational change | 3 | 21 | 813 | 1390 |
| 524 | Food service management | 1 | 21 | 751 | 1048 |
| 524 | gene therapy | 1 | 21 | 2239 | 2627 |
| 524 | Small Business | 1 | 21 | 1343 | 1683 |
| 524 | organizational effectiveness | 3 | 21 | 455 | 884 |
| 534 | Tourism | 1 | 20 | 2794 | 2968 |
| 534 | Democracy | 1 | 20 | 734 | 461 |
| 534 | Multivariate Analysis | 1 | 20 | 940 | 911 |
| 534 | Democratization | 1 | 20 | 327 | 350 |
| 534 | Behavioral research | 1 | 20 | 1170 | 1135 |
| 534 | Quality Assurance | 1 | 20 | 954 | 903 |
| 534 | Climate change | 4 | 20 | 1077 | 2658 |
| 534 | Research methodology | 1 | 20 | 235 | 317 |
| 534 | Respiratory system | 2 | 20 | 898 | 1521 |
| 534 | Hospitality industry | 1 | 20 | 874 | 1026 |
| 534 | immigrants | 2 | 20 | 50 | 62 |
| 534 | Classification | 1 | 20 | 619 | 523 |
| 534 | Respiration | 2 | 20 | 2142 | 3159 |
| 547 | Industrial Design | 2 | 19 | 396 | 630 |
| 547 | Industrial Organization | 4 | 19 | 297 | 701 |
| 547 | Psychiatric Nursing | 2 | 19 | 974 | 1383 |
| 547 | Geographic information systems | 1 | 19 | 2269 | 2098 |
| 547 | Energy Consumption | 1 | 19 | 575 | 661 |
| 547 | Feminism | 3 | 19 | 645 | 939 |
| 547 | Industrial Policy | 4 | 19 | 487 | 1033 |
| 547 | Social policy | 2 | 19 | 1480 | 1834 |
| 547 | Library Science | 4 | 19 | 1229 | 1613 |
| 547 | Alzheimer's disease | 7 | 19 | 1264 | 2218 |
| 547 | finance | 6 | 19 | 1913 | 3405 |
| 558 | Geology | 3 | 18 | 3468 | 4716 |
| 558 | Embedded Systems | 1 | 18 | 418 | 407 |
| 558 | Geometry | 5 | 18 | 1189 | 1556 |
| 558 | Signal Transduction | 1 | 18 | 2541 | 3109 |
| 558 | Particle Physics | 1 | 18 | 1482 | 1188 |
| 558 | Quality Control | 2 | 18 | 2709 | 3829 |
| 558 | food technology | 2 | 18 | 3526 | 5010 |
| 558 | Immunogenetics | 2 | 18 | 1128 | 1680 |
| 558 | Antioxidants | 1 | 18 | 1494 | 2049 |
| 558 | Academic achievement | 2 | 18 | 65 | 131 |
| 558 | corrections | 2 | 18 | 248 | 330 |
| 558 | Japan | 3 | 18 | 2371 | 3436 |
| 558 | punishment | 2 | 18 | 138 | 240 |
| 558 | Egypt | 2 | 18 | 758 | 1456 |
| 558 | Oxidation-reduction | 1 | 18 | 1499 | 2154 |
| 573 | Nuclear Engineering | 2 | 17 | 1774 | 1962 |
| 573 | Applied Mathematics | 3 | 17 | 1236 | 1249 |
| 573 | Soil Science | 2 | 17 | 2615 | 3588 |
| 573 | Demography | 1 | 17 | 1434 | 1559 |
| 573 | Petrology | 3 | 17 | 1022 | 1572 |
| 573 | Industrial Microbiology | 2 | 17 | 2834 | 4337 |
| 573 | Total Quality Management | 1 | 17 | 1202 | 1359 |
| 573 | Flexible manufacturing systems | 1 | 17 | 863 | 1129 |
| 573 | Lattice Theory | 2 | 17 | 282 | 248 |
| 573 | Fractional Calculus | 3 | 17 | 148 | 380 |
| 573 | drug abuse | 1 | 17 | 1319 | 1495 |
| 573 | India | 2 | 17 | 2692 | 2593 |
| 573 | harm reduction | 1 | 17 | 490 | 580 |
| 586 | Distance Education | 2 | 16 | 715 | 1092 |
| 586 | Process Control | 1 | 16 | 1604 | 2130 |
| 586 | Microbial Biotechnology | 1 | 16 | 2090 | 2506 |
| 586 | Bacteriology | 1 | 16 | 3398 | 4241 |
| 586 | Political Parties | 2 | 16 | 283 | 440 |
| 586 | Access to Information | 2 | 16 | 241 | 649 |
| 586 | big data | 2 | 16 | 835 | 1298 |
| 586 | Watershed management | 1 | 16 | 601 | 581 |
| 586 | foreign exchange | 1 | 16 | 703 | 861 |
| 586 | Adolescent | 3 | 16 | 2641 | 4318 |
| 586 | Chromosomes | 2 | 16 | 1425 | 2324 |
| 586 | Developed countries | 2 | 16 | 326 | 590 |
| 586 | Information dissemination | 2 | 16 | 241 | 649 |
| 599 | Fluid Mechanics | 4 | 15 | 1780 | 3083 |
| 599 | Photography | 14 | 15 | 1674 | 2496 |
| 599 | Ethnoarchaeology | 1 | 15 | 376 | 475 |
| 599 | Health Education | 2 | 15 | 2888 | 4192 |
| 599 | Career development | 2 | 15 | 582 | 922 |
| 599 | Semiconductors | 4 | 15 | 2251 | 3621 |
| 599 | Investment analysis | 1 | 15 | 1582 | 1665 |
| 599 | Urban Anthropology | 1 | 15 | 384 | 462 |
| 599 | Optoelectronic devices | 1 | 15 | 1805 | 1517 |
| 599 | Communist countries | 3 | 15 | 260 | 466 |
| 599 | Nuclear Facilities | 1 | 15 | 166 | 121 |
| 599 | pigments | 2 | 15 | 1193 | 1916 |
| 611 | Public Relations | 1 | 14 | 1007 | 990 |
| 611 | Intercultural Communication | 1 | 14 | 814 | 909 |
| 611 | Bioenergetics | 1 | 14 | 1644 | 2106 |
| 611 | Nuclear Fusion | 1 | 14 | 1094 | 1089 |
| 611 | Patient education | 1 | 14 | 1250 | 1793 |
| 611 | preventive medicine | 1 | 14 | 2728 | 3281 |
| 611 | Language and Culture | 1 | 14 | 366 | 336 |
| 611 | Electron Microscopy | 1 | 14 | 880 | 980 |
| 611 | Happiness | 1 | 14 | 971 | 1256 |
| 611 | visualization | 2 | 14 | 2423 | 2239 |
| 611 | counseling | 1 | 14 | 2574 | 2855 |
| 611 | Electrophysiology | 1 | 14 | 2164 | 2291 |
| 611 | Metallography | 1 | 14 | 1576 | 1873 |
| 611 | ecosystem | 1 | 14 | 2510 | 3245 |
| 611 | Human Resources | 1 | 14 | 870 | 1267 |
| 611 | Electromagnetic fields | 1 | 14 | 769 | 569 |
| 611 | fusion reactors | 1 | 14 | 840 | 780 |
| 628 | Information Theory | 2 | 13 | 1735 | 2202 |
| 628 | Geomorphology | 1 | 13 | 2265 | 2897 |
| 628 | Educational Leadership | 1 | 13 | 346 | 384 |
| 628 | Mineralogy | 2 | 13 | 1870 | 2508 |
| 628 | Clinical Immunology | 2 | 13 | 1927 | 2972 |
| 628 | Chemical Oceanography | 1 | 13 | 566 | 852 |
| 628 | Bioremediation | 1 | 13 | 1824 | 2371 |
| 628 | Water quality | 1 | 13 | 636 | 922 |
| 628 | Developmental Immunology | 2 | 13 | 1171 | 2110 |
| 628 | Communism | 2 | 13 | 224 | 333 |
| 628 | Plastics | 2 | 13 | 2489 | 3337 |
| 628 | Environmental pollutants | 2 | 13 | 3228 | 4997 |
| 628 | viruses | 2 | 13 | 2119 | 3571 |
| 628 | Water chemistry | 1 | 13 | 922 | 1166 |
| 628 | Sites | 1 | 13 | 1038 | 1498 |
| 628 | Longevity | 3 | 13 | 190 | 688 |
| 628 | rejuvenation | 3 | 13 | 132 | 588 |
| 628 | Pregnancy | 1 | 13 | 1847 | 2267 |
| 646 | Radiology | 2 | 12 | 2418 | 3211 |
| 646 | Climatology | 1 | 12 | 3181 | 3718 |
| 646 | Paleoclimatology | 1 | 12 | 1760 | 2242 |
| 646 | Paleoecology | 1 | 12 | 1721 | 2122 |
| 646 | Neonatology | 1 | 12 | 1385 | 1759 |
| 646 | Kinetics | 1 | 12 | 1119 | 1323 |
| 646 | Social History | 1 | 12 | 1039 | 807 |
| 646 | economic forecasting | 2 | 12 | 504 | 910 |
| 646 | Forecasting | 2 | 12 | 825 | 1303 |
| 646 | cosmic rays | 2 | 12 | 713 | 1118 |
| 646 | Combinatorial chemistry | 1 | 12 | 1784 | 2338 |
| 646 | Kalman Filtering | 1 | 12 | 266 | 254 |
| 646 | transgenic organisms | 1 | 12 | 653 | 985 |
| 646 | Paleogeography | 1 | 12 | 1532 | 1940 |
| 646 | Plant genetic engineering | 1 | 12 | 1758 | 2193 |
| 646 | transgenic animals | 1 | 12 | 621 | 953 |
| 646 | Globalization | 1 | 12 | 1207 | 1552 |
| 646 | Transnationalism | 2 | 12 | 13 | 26 |
| 646 | pain management | 1 | 12 | 1460 | 1687 |
| 646 | Transgenic plants | 1 | 12 | 1035 | 1469 |
| 646 | international trade | 2 | 12 | 1051 | 1565 |
| 646 | Securities | 2 | 12 | 487 | 939 |
| 646 | Cosmochemistry | 1 | 12 | 1627 | 2159 |
| 646 | pain | 1 | 12 | 2702 | 3195 |
| 646 | Quantum theory | 2 | 12 | 1440 | 1849 |
| 646 | Meteorites | 1 | 12 | 1529 | 2021 |
| 672 | Nephrology | 2 | 11 | 867 | 1590 |
| 672 | Game Theory | 3 | 11 | 664 | 1160 |
| 672 | Environmental Microbiology | 1 | 11 | 2740 | 3782 |
| 672 | Optical Communications | 2 | 11 | 953 | 1360 |
| 672 | Emergency Medicine | 2 | 11 | 2332 | 3424 |
| 672 | Bifurcation Theory | 2 | 11 | 979 | 1386 |
| 672 | terrorism | 1 | 11 | 575 | 640 |
| 672 | Simulation Methods | 2 | 11 | 1513 | 2399 |
| 672 | Organometallic chemistry | 2 | 11 | 2721 | 3680 |
| 672 | Mutagenesis | 1 | 11 | 1063 | 1447 |
| 672 | Health | 2 | 11 | 3559 | 5566 |
| 672 | Coding Theory | 3 | 11 | 392 | 645 |
| 672 | food handling | 1 | 11 | 1779 | 2567 |
| 672 | Government policy | 1 | 11 | 388 | 530 |
| 672 | social conflict | 1 | 11 | 493 | 543 |
| 672 | mutagens | 1 | 11 | 1589 | 2267 |
| 672 | body temperature | 1 | 11 | 1077 | 1473 |
| 672 | population geography | 1 | 11 | 829 | 991 |
| 672 | planning | 4 | 11 | 674 | 1920 |
| 672 | kidney | 2 | 11 | 106 | 267 |
| 672 | Philippines | 2 | 11 | 185 | 345 |
| 693 | Physiology | 1 | 10 | 6824 | 8070 |
| 693 | Criminology | 2 | 10 | 1207 | 1713 |
| 693 | Marine Geology | 1 | 10 | 1075 | 1361 |
| 693 | Clinical Pharmacology | 1 | 10 | 2828 | 3539 |
| 693 | Petroleum Geology | 1 | 10 | 918 | 1210 |
| 693 | Feminist Economics | 2 | 10 | 101 | 386 |
| 693 | health workforce | 1 | 10 | 446 | 877 |
| 693 | diffusion | 3 | 10 | 410 | 448 |
| 693 | civil society | 1 | 10 | 155 | 192 |
| 693 | Supramolecular chemistry | 1 | 10 | 552 | 647 |
| 693 | Hydraulic structures | 1 | 10 | 220 | 242 |
| 693 | elasticity | 1 | 10 | 464 | 566 |
| 693 | Chemical analysis | 2 | 10 | 1654 | 2842 |
| 693 | Communication | 1 | 10 | 3793 | 4063 |
| 693 | Capital market | 1 | 10 | 817 | 1141 |
| 693 | drug therapy | 1 | 10 | 4302 | 5294 |
| 693 | commerce | 1 | 10 | 3021 | 3239 |
| 710 | Dermatology | 1 | 9 | 3206 | 3789 |
| 710 | Gender Studies | 1 | 9 | 941 | 1261 |
| 710 | Information Systems | 1 | 9 | 2945 | 3763 |
| 710 | Macroeconomics | 1 | 9 | 765 | 854 |
| 710 | Environmental Toxicology | 2 | 9 | 3475 | 5785 |
| 710 | Pharmacogenetics | 1 | 9 | 2120 | 2920 |
| 710 | Phonetics | 1 | 9 | 615 | 793 |
| 710 | Phonology | 1 | 9 | 58 | 96 |
| 710 | Risk Management | 1 | 9 | 1651 | 2172 |
| 710 | Algebraic Logic | 2 | 9 | 51 | 58 |
| 710 | Human Rights | 2 | 9 | 845 | 1344 |
| 710 | Genetic Research | 1 | 9 | 435 | 725 |
| 710 | Thin Films | 1 | 9 | 1244 | 1490 |
| 710 | Expert Systems | 1 | 9 | 563 | 780 |
| 710 | soil conservation | 1 | 9 | 1636 | 2178 |
| 710 | soil pollution | 1 | 9 | 1280 | 1720 |
| 710 | sexual orientation | 1 | 9 | 295 | 424 |
| 710 | Sexual health | 2 | 9 | 1125 | 1698 |
| 710 | Gender identity | 1 | 9 | 637 | 655 |
| 710 | Environmental risk assessment | 1 | 9 | 984 | 1402 |
| 710 | Echocardiography | 1 | 9 | 255 | 472 |
| 710 | Monomers | 1 | 9 | 187 | 309 |
| 710 | mental processes | 2 | 9 | 522 | 900 |
| 710 | Fashion | 1 | 9 | 326 | 408 |
| 710 | DNA | 2 | 9 | 954 | 1823 |
| 710 | women | 1 | 9 | 1643 | 1724 |
| 710 | Perception | 3 | 9 | 2375 | 4512 |
| 737 | Social Choice Theory | 1 | 8 | 463 | 529 |
| 737 | Early Childhood Education | 2 | 8 | 757 | 1263 |
| 737 | Organizational Sociology | 1 | 8 | 677 | 899 |
| 737 | Welfare Economics | 1 | 8 | 801 | 998 |
| 737 | Carcinogenesis | 1 | 8 | 1978 | 2850 |
| 737 | Politics | 1 | 8 | 1272 | 1020 |
| 737 | Reproductive health | 2 | 8 | 1214 | 2379 |
| 737 | Radiobiology | 3 | 8 | 1850 | 3453 |
| 737 | Raman spectroscopy | 1 | 8 | 1635 | 2247 |
| 737 | Second Language Acquisition | 1 | 8 | 401 | 621 |
| 737 | Military readiness | 4 | 8 | 60 | 152 |
| 737 | government | 1 | 8 | 1327 | 1253 |
| 737 | Cannabis | 1 | 8 | 215 | 387 |
| 737 | Ore deposits | 1 | 8 | 891 | 1189 |
| 737 | cannabinoids | 1 | 8 | 200 | 358 |
| 737 | Human biology | 1 | 8 | 1341 | 1795 |
| 737 | Cognition | 1 | 8 | 2927 | 3823 |
| 754 | Engineering Physics | 1 | 7 | 266 | 214 |
| 754 | Surgery | 1 | 7 | 3772 | 4456 |
| 754 | Critical Care | 1 | 7 | 3087 | 4095 |
| 754 | Cytogenetics | 1 | 7 | 2927 | 3958 |
| 754 | Computational Linguistics | 1 | 7 | 1311 | 1462 |
| 754 | Differential Equations | 4 | 7 | 987 | 1814 |
| 754 | emergency management | 1 | 7 | 1912 | 2731 |
| 754 | Sustainable agriculture | 2 | 7 | 1106 | 2248 |
| 754 | Religion | 1 | 7 | 1834 | 1427 |
| 754 | Cognitive Science | 2 | 7 | 2219 | 3847 |
| 754 | Wireless Communication | 1 | 7 | 983 | 1276 |
| 754 | Marine Geophysics | 1 | 7 | 564 | 811 |
| 754 | Language and Logic | 1 | 7 | 220 | 224 |
| 754 | Environmental Geochemistry | 1 | 7 | 1320 | 1935 |
| 754 | Strategic planning | 1 | 7 | 1455 | 1960 |
| 754 | Autoimmunity | 1 | 7 | 1441 | 2178 |
| 754 | Food Security | 2 | 7 | 252 | 779 |
| 754 | biological factors | 2 | 7 | 2755 | 4671 |
| 754 | Africa | 3 | 7 | 2034 | 3646 |
| 754 | Middle East | 2 | 7 | 1469 | 2178 |
| 754 | Petroleum | 2 | 7 | 464 | 790 |
| 754 | food industry | 1 | 7 | 1564 | 2130 |
| 754 | identity recognition | 2 | 7 | 34 | 128 |
| 777 | Zoology | 1 | 6 | 4298 | 5080 |
| 777 | Computer Engineering | 1 | 6 | 1856 | 2386 |
| 777 | Structuralism | 1 | 6 | 318 | 578 |
| 777 | Language Disorders | 1 | 6 | 1573 | 2088 |
| 777 | Power Electronics | 2 | 6 | 1032 | 1582 |
| 777 | Health Services Research | 3 | 6 | 2235 | 4835 |
| 777 | Cultural Anthropology | 1 | 6 | 194 | 274 |
| 777 | Regional Planning | 2 | 6 | 2166 | 3462 |
| 777 | genre | 1 | 6 | 555 | 816 |
| 777 | speech therapy | 1 | 6 | 797 | 1093 |
| 777 | Mobile genetic elements | 1 | 6 | 227 | 477 |
| 777 | Regionalism | 2 | 6 | 324 | 704 |
| 777 | Language and Education | 1 | 6 | 371 | 415 |
| 777 | Speech Disorders | 1 | 6 | 1820 | 2406 |
| 777 | psychophysics | 2 | 6 | 481 | 844 |
| 777 | Serbia | 1 | 6 | 357 | 346 |
| 777 | Federal government | 2 | 6 | 241 | 485 |
| 777 | Communication Disorders | 1 | 6 | 702 | 928 |
| 777 | Social behavior | 1 | 6 | 2240 | 3035 |
| 777 | Combinatorial analysis | 1 | 6 | 1814 | 1753 |
| 777 | Hydrocarbons | 1 | 6 | 253 | 360 |
| 777 | Attention | 2 | 6 | 2731 | 4784 |
| 777 | Psychophysiology | 2 | 6 | 3725 | 6039 |
| 800 | Pharmacognosy | 1 | 5 | 3300 | 4539 |
| 800 | Atmospheric Chemistry | 1 | 5 | 1609 | 2280 |
| 800 | Atmospheric Physics | 1 | 5 | 2764 | 3633 |
| 800 | Image Processing | 3 | 5 | 2454 | 4654 |
| 800 | infrared radiation | 1 | 5 | 1296 | 1789 |
| 800 | cultural policy | 1 | 5 | 436 | 615 |
| 800 | Medicinal plants | 1 | 5 | 2732 | 3832 |
| 800 | Functional foods | 3 | 5 | 420 | 1455 |
| 800 | Urbanization | 2 | 5 | 369 | 863 |
| 800 | Molecular evolution | 1 | 5 | 2887 | 4212 |
| 800 | structural stability | 1 | 5 | 925 | 1384 |
| 800 | sustainability | 1 | 5 | 1801 | 2678 |
| 800 | Religion and Psychology | 1 | 5 | 1172 | 1680 |
| 800 | Child psychology | 1 | 5 | 2735 | 3766 |
| 800 | pollutants | 1 | 5 | 3485 | 4829 |
| 800 | Chemical processes | 1 | 5 | 1320 | 1912 |
| 800 | environmental exposure | 1 | 5 | 3720 | 5350 |
| 800 | Roads | 1 | 5 | 1357 | 1717 |
| 800 | Sedimentary rocks | 1 | 5 | 1079 | 1505 |
| 800 | Sales management | 1 | 5 | 402 | 670 |
| 800 | selling | 1 | 5 | 402 | 670 |
| 821 | Emergency Medical Services | 1 | 4 | 1761 | 2649 |
| 821 | Nanomedicine | 1 | 4 | 596 | 1218 |
| 821 | Thermodynamics | 2 | 4 | 1788 | 2811 |
| 821 | Occupational Health | 2 | 4 | 1703 | 3124 |
| 821 | Horticulture | 2 | 4 | 1182 | 2183 |
| 821 | Sedimentology | 2 | 4 | 895 | 1849 |
| 821 | Forest Ecology | 1 | 4 | 1884 | 2753 |
| 821 | Boundary Value Problems | 1 | 4 | 931 | 1112 |
| 821 | industrial hygiene | 2 | 4 | 1761 | 3109 |
| 821 | Antenna Arrays | 1 | 4 | 415 | 532 |
| 821 | Genetic databases | 1 | 4 | 130 | 277 |
| 821 | Chemical safety | 2 | 4 | 69 | 144 |
| 821 | Adhesion | 1 | 4 | 1391 | 2045 |
| 821 | Chromatography | 1 | 4 | 3035 | 4218 |
| 821 | Action Research | 1 | 4 | 515 | 930 |
| 821 | Digital humanities | 1 | 4 | 252 | 419 |
| 821 | Forest Management | 1 | 4 | 1838 | 2605 |
| 821 | Human-robot interaction | 1 | 4 | 128 | 237 |
| 821 | natural products | 2 | 4 | 2514 | 4010 |
| 821 | stability | 1 | 4 | 238 | 326 |
| 821 | adhesives | 1 | 4 | 1476 | 2101 |
| 821 | Chromatographic analysis | 1 | 4 | 3466 | 4610 |
| 821 | Minerals | 1 | 4 | 1698 | 2544 |
| 821 | Islamic civilization | 4 | 4 | 115 | 162 |
| 821 | Instructional systems | 1 | 4 | 346 | 639 |
| 846 | Urology | 2 | 3 | 2519 | 4218 |
| 846 | Anthropological Linguistics | 1 | 3 | 604 | 659 |
| 846 | Neuropsychology | 1 | 3 | 4022 | 5504 |
| 846 | Institutional Economics | 1 | 3 | 280 | 527 |
| 846 | Asthma | 1 | 3 | 1483 | 2321 |
| 846 | Mining Geology | 1 | 3 | 212 | 363 |
| 846 | Space telescopes | 1 | 3 | 470 | 589 |
| 846 | health behavior | 1 | 3 | 1989 | 3108 |
| 846 | Material Culture | 1 | 3 | 302 | 466 |
| 846 | Research Design | 1 | 3 | 2568 | 4053 |
| 846 | environmental indicators | 1 | 3 | 2090 | 3348 |
| 846 | Logic Programming | 2 | 3 | 444 | 753 |
| 846 | Adaptive control systems | 1 | 3 | 1206 | 1757 |
| 846 | Health insurance | 1 | 3 | 1005 | 1699 |
| 846 | Computational Complexity | 3 | 3 | 1316 | 2854 |
| 846 | Russia | 3 | 3 | 273 | 451 |
| 846 | East Asia | 1 | 3 | 1434 | 1972 |
| 846 | Brain | 1 | 3 | 4325 | 5758 |
| 846 | Enzyme | 2 | 3 | 738 | 1737 |
| 846 | anesthesia | 1 | 3 | 1243 | 1621 |
| 846 | Dementia | 6 | 3 | 1345 | 2783 |
| 846 | Capitalism | 1 | 3 | 448 | 755 |
| 846 | North Africa | 1 | 3 | 442 | 551 |
| 846 | extraterrestrial environment | 1 | 3 | 1268 | 1866 |
| 846 | astronomical phenomena | 1 | 3 | 1193 | 1720 |
| 846 | Allergies | 1 | 3 | 365 | 784 |
| 872 | Nuclear Energy | 1 | 2 | 2114 | 2769 |
| 872 | Tribology | 1 | 2 | 2156 | 3007 |
| 872 | Geriatric Psychiatry | 1 | 2 | 2177 | 3321 |
| 872 | International Law | 1 | 2 | 792 | 769 |
| 872 | Pediatric Rheumatology | 1 | 2 | 487 | 879 |
| 872 | Microeconomics | 1 | 2 | 691 | 969 |
| 872 | Educational Anthropology | 1 | 2 | 243 | 397 |
| 872 | Operator theory | 3 | 2 | 488 | 1106 |
| 872 | Radiopharmaceuticals | 1 | 2 | 828 | 1174 |
| 872 | Superconductors | 1 | 2 | 1270 | 1686 |
| 872 | Venture Capital | 1 | 2 | 533 | 917 |
| 872 | Behavioral Finance | 1 | 2 | 151 | 409 |
| 872 | local government | 1 | 2 | 646 | 1085 |
| 872 | Folklore | 2 | 2 | 209 | 212 |
| 872 | Plant physiology | 2 | 2 | 2841 | 4810 |
| 872 | Calculus of Variations | 1 | 2 | 908 | 1168 |
| 872 | monetary policy | 1 | 2 | 150 | 302 |
| 872 | Aerosols | 2 | 2 | 835 | 1724 |
| 872 | Substance Abuse | 1 | 2 | 2672 | 4056 |
| 872 | Cardiovascular diseases | 1 | 2 | 3109 | 4235 |
| 872 | Semigroups | 1 | 2 | 584 | 756 |
| 872 | school-to-work transition | 1 | 2 | 158 | 383 |
| 872 | Medical innovations | 1 | 2 | 2114 | 3496 |
| 872 | Vocational guidance | 1 | 2 | 1569 | 2436 |
| 872 | Fossil fuels | 1 | 2 | 206 | 309 |
| 872 | Comparative Law | 1 | 2 | 513 | 499 |
| 872 | biomimicry | 1 | 2 | 353 | 686 |
| 872 | drug addiction | 1 | 2 | 2117 | 3305 |
| 872 | crops | 1 | 2 | 354 | 628 |
| 872 | Evolution equations | 2 | 2 | 225 | 581 |
| 872 | alcoholism | 1 | 2 | 2756 | 4155 |
| 872 | national security | 2 | 2 | 572 | 1027 |
| 872 | Approximation Theory | 1 | 2 | 786 | 1067 |
| 872 | stocks | 1 | 2 | 337 | 780 |
| 872 | Investments | 1 | 2 | 1221 | 1945 |
| 907 | Endocrinology | 2 | 1 | 4353 | 7150 |
| 907 | Linguistics | 1 | 1 | 2808 | 3507 |
| 907 | Cognitive Psychology | 1 | 1 | 842 | 1316 |
| 907 | Engineering Economics | 1 | 1 | 218 | 391 |
| 907 | Graphic Novels | 1 | 1 | 83 | 198 |
| 907 | Computer Vision | 2 | 1 | 1626 | 3327 |
| 907 | Philosophy of Mind | 2 | 1 | 343 | 797 |
| 907 | Fluid Dynamics | 1 | 1 | 2173 | 3159 |
| 907 | Medical Microbiology | 1 | 1 | 4312 | 6305 |
| 907 | Juvenile delinquency | 1 | 1 | 573 | 914 |
| 907 | School Psychology | 1 | 1 | 839 | 1511 |
| 907 | Machine Learning | 1 | 1 | 833 | 1356 |
| 907 | Tissue Engineering | 1 | 1 | 740 | 1306 |
| 907 | Educational Sociology | 1 | 1 | 760 | 1268 |
| 907 | Number Theory | 1 | 1 | 1562 | 2034 |
| 907 | Organizational learning | 1 | 1 | 1293 | 2282 |
| 907 | income distribution | 1 | 1 | 327 | 624 |
| 907 | Erectile dysfunction | 1 | 1 | 583 | 997 |
| 907 | Popular culture | 1 | 1 | 1030 | 1283 |
| 907 | Industrial Ecology | 1 | 1 | 427 | 857 |
| 907 | Artificial Organs | 1 | 1 | 1326 | 2029 |
| 907 | Soil dynamics | 1 | 1 | 892 | 1395 |
| 907 | Immunochemistry | 1 | 1 | 2066 | 3105 |
| 907 | women's rights | 1 | 1 | 447 | 793 |
| 907 | Legislative Power | 1 | 1 | 145 | 319 |
| 907 | Knowledge management | 1 | 1 | 1578 | 2540 |
| 907 | Socialism | 1 | 1 | 425 | 594 |
| 907 | Public Finance | 1 | 1 | 424 | 721 |
| 907 | Spectroscopy | 1 | 1 | 535 | 972 |
| 907 | Continuum Mechanics | 1 | 1 | 371 | 682 |
| 907 | movement | 1 | 1 | 705 | 1209 |
| 907 | drinking water | 1 | 1 | 335 | 806 |
| 907 | Elections | 1 | 1 | 613 | 948 |
| 907 | Steroids | 1 | 1 | 1879 | 2901 |
| 907 | United Kingdom | 1 | 1 | 3189 | 4712 |
| 907 | crime | 1 | 1 | 1152 | 1698 |
| 907 | biopolymers | 1 | 1 | 2135 | 3144 |
| 907 | Endocrine system | 2 | 1 | 1312 | 1586 |
| 907 | Decision making | 2 | 1 | 2271 | 4917 |
| 907 | California | 1 | 1 | 850 | 1318 |
| 907 | winds | 1 | 1 | 304 | 590 |
| 907 | Structure-activity relationship | 1 | 1 | 1027 | 1679 |
| 907 | deviant behavior | 1 | 1 | 556 | 901 |
| 907 | hygiene | 1 | 1 | 1176 | 2152 |
| 907 | Agriculture | 1 | 1 | 4472 | 6224 |
| 952 | Literature | 2 | 0 | 1318 | 1664 |
| 952 | History | 1 | 0 | 2109 | 2189 |
| 952 | Botany | 1 | 0 | 5970 | 7988 |
| 952 | Ethics | 1 | 0 | 2006 | 3502 |
| 952 | Psycholinguistics | 1 | 0 | 1678 | 2691 |
| 952 | Lung Transplantation | 2 | 0 | 720 | 1343 |
| 952 | Nanoelectronics | 1 | 0 | 1619 | 2421 |
| 952 | Morphology | 1 | 0 | 1627 | 2415 |
| 952 | Educational Research | 1 | 0 | 233 | 559 |
| 952 | Food Preservation | 1 | 0 | 1589 | 2564 |
| 952 | Sports Medicine | 1 | 0 | 4384 | 5993 |
| 952 | Psychopharmacology | 1 | 0 | 2909 | 4236 |
| 952 | History of Medicine | 1 | 0 | 1015 | 1345 |
| 952 | Virtual reality | 1 | 0 | 864 | 1597 |
| 952 | Humanism | 1 | 0 | 166 | 234 |
| 952 | Neuropharmacology | 1 | 0 | 1358 | 2157 |
| 952 | Air Conditioning | 1 | 0 | 457 | 885 |
| 952 | Ornithology | 1 | 0 | 1752 | 2509 |
| 952 | Heart transplantation | 2 | 0 | 720 | 1343 |
| 952 | Military Ethics | 1 | 0 | 84 | 216 |
| 952 | Sports | 1 | 0 | 3482 | 4749 |
| 952 | Islamic education | 1 | 0 | 116 | 157 |
| 952 | clay | 1 | 0 | 1542 | 2426 |
| 952 | subculture | 1 | 0 | 97 | 198 |
| 952 | clay minerals | 1 | 0 | 603 | 1102 |
| 952 | cooling | 1 | 0 | 138 | 248 |
| 952 | Fans | 1 | 0 | 49 | 135 |
| 952 | Social problems | 1 | 0 | 1165 | 2022 |
| 952 | vapor-liquid equilibrium | 1 | 0 | 138 | 248 |
| 952 | Croatia | 1 | 0 | 300 | 566 |
| 952 | Italian language | 1 | 0 | 265 | 270 |
| 952 | Plant diseases | 1 | 0 | 3254 | 4643 |
| 952 | technical education | 1 | 0 | 1029 | 1831 |
| 952 | Methodology | 1 | 0 | 1089 | 1959 |
| 952 | Cellulose | 1 | 0 | 1350 | 2275 |
| 952 | immigration | 1 | 0 | 439 | 883 |
| 952 | administrative agencies | 1 | 0 | 617 | 1031 |
| 952 | Nomadism | 1 | 0 | 27 | 96 |
| 952 | values | 1 | 0 | 547 | 878 |
| 952 | Refractory materials | 1 | 0 | 293 | 538 |
| 952 | migration policy | 1 | 0 | 452 | 973 |
| 952 | biological agents | 1 | 0 | 1424 | 2245 |
| 952 | Birds | 1 | 0 | 2040 | 2840 |
| 952 | church and state | 1 | 0 | 272 | 268 |
| 952 | Asylum seeker | 1 | 0 | 358 | 769 |
| 952 | Mental illness | 1 | 0 | 3812 | 5732 |
| 952 | nation-building | 1 | 0 | 81 | 238 |
| 952 | civil service | 1 | 0 | 749 | 1259 |
| 952 | Jews | 1 | 0 | 553 | 722 |