| 1 | Ecology | 90 | 4.8K | 1066 | 983 |
| 2 | Renewable Energy Sources | 32 | 4.4K | 654 | 352 |
| 3 | Chemistry | 67 | 3.7K | 2303 | 1777 |
| 4 | Science | 51 | 3.0K | 2256 | 1931 |
| 5 | Pollution | 30 | 2.5K | 1774 | 1220 |
| 6 | Environment | 24 | 2.5K | 1637 | 1216 |
| 7 | Biology | 69 | 2.5K | 1745 | 2030 |
| 8 | Biotechnology | 40 | 2.3K | 1540 | 1287 |
| 9 | Physics | 36 | 1.8K | 2841 | 2508 |
| 10 | Oncology | 1 | 1.8K | 2377 | 737 |
| 11 | Biodiversity conservation | 19 | 1.6K | 543 | 561 |
| 12 | Research | 52 | 1.5K | 1990 | 1846 |
| 13 | Biodiversity | 16 | 1.3K | 833 | 483 |
| 14 | Climate change | 5 | 1.3K | 699 | 543 |
| 15 | Eutrophication | 4 | 1.3K | 738 | 542 |
| 16 | Biogeochemistry | 9 | 1.2K | 571 | 323 |
| 17 | environmental pollution | 20 | 1.2K | 1740 | 1333 |
| 18 | Geophysics | 26 | 1.2K | 1166 | 925 |
| 19 | Geology | 55 | 1.2K | 724 | 758 |
| 20 | Bioengineering | 22 | 1.1K | 1474 | 1295 |
| 21 | Medicine | 31 | 1.1K | 2825 | 2572 |
| 22 | Public Health | 26 | 1.1K | 1575 | 1257 |
| 23 | Information Technology | 16 | 1.1K | 932 | 531 |
| 24 | Biochemical Engineering | 18 | 1.0K | 1360 | 1336 |
| 25 | Nanotechnology | 20 | 1.0K | 1963 | 1644 |
| 26 | Botany | 35 | 949 | 1165 | 1273 |
| 27 | Chemical Engineering | 32 | 931 | 1568 | 1694 |
| 28 | Catalysis | 27 | 929 | 1385 | 1408 |
| 29 | Molecular Biology | 25 | 893 | 2617 | 2486 |
| 30 | Engineering | 22 | 856 | 1601 | 989 |
| 31 | Biomedical Engineering | 14 | 844 | 2282 | 1576 |
| 32 | Asia | 65 | 749 | 237 | 440 |
| 33 | Marine Biology | 27 | 741 | 830 | 852 |
| 34 | Educational Technology | 14 | 737 | 623 | 353 |
| 35 | Economic History | 38 | 721 | 805 | 802 |
| 36 | Environmental Health | 16 | 720 | 2225 | 1951 |
| 37 | Biochemistry | 22 | 717 | 3128 | 2947 |
| 38 | Natural history | 20 | 662 | 1097 | 2033 |
| 39 | Earth Sciences | 33 | 642 | 945 | 1106 |
| 40 | Geochemistry | 20 | 625 | 749 | 765 |
| 41 | Artificial Intelligence | 15 | 583 | 1744 | 1447 |
| 42 | Materials | 28 | 580 | 2103 | 2261 |
| 43 | ecosystem | 11 | 579 | 616 | 561 |
| 44 | Analytical Chemistry | 17 | 565 | 1894 | 1780 |
| 45 | Biogeography | 9 | 523 | 537 | 536 |
| 45 | Nanostructured Materials | 12 | 523 | 1576 | 1388 |
| 47 | Wildlife conservation | 6 | 519 | 697 | 502 |
| 48 | Petroleum Engineering | 22 | 507 | 169 | 187 |
| 48 | Microbiology | 10 | 507 | 2972 | 2556 |
| 50 | Islam | 28 | 503 | 37 | 22 |
| 51 | commerce | 31 | 501 | 255 | 556 |
| 52 | Environmental monitoring | 18 | 485 | 1573 | 1857 |
| 53 | management | 18 | 476 | 1446 | 1606 |
| 54 | Biosensors | 6 | 472 | 860 | 734 |
| 54 | Bioelectronics | 6 | 472 | 748 | 655 |
| 56 | Environmental Geology | 15 | 463 | 632 | 608 |
| 57 | Education | 38 | 460 | 898 | 1146 |
| 58 | Biocompatible Materials | 7 | 449 | 2180 | 1874 |
| 59 | Electrochemistry | 25 | 448 | 1533 | 1556 |
| 60 | Geodynamics | 2 | 447 | 912 | 429 |
| 61 | Molecular structure | 11 | 442 | 1271 | 880 |
| 62 | China | 24 | 431 | 862 | 944 |
| 63 | Solar Energy | 10 | 419 | 912 | 842 |
| 64 | biological evolution | 11 | 411 | 972 | 1059 |
| 65 | Environmental Engineering | 13 | 409 | 1789 | 1708 |
| 66 | Plant Ecology | 13 | 402 | 793 | 906 |
| 67 | Economics | 31 | 400 | 1364 | 1563 |
| 68 | Vaccines | 5 | 391 | 1081 | 656 |
| 69 | Phytotherapy | 5 | 387 | 412 | 174 |
| 70 | Molecular evolution | 7 | 380 | 848 | 750 |
| 71 | Ore deposits | 20 | 378 | 138 | 214 |
| 72 | Water pollution | 15 | 376 | 1199 | 1473 |
| 73 | Epidemiology | 7 | 373 | 1977 | 1390 |
| 74 | Social Sciences | 19 | 363 | 1270 | 1165 |
| 75 | Industry | 3 | 361 | 156 | 101 |
| 76 | Immunotherapy | 1 | 342 | 2057 | 905 |
| 77 | environmental protection | 9 | 338 | 2068 | 1853 |
| 78 | Herbal medicine | 2 | 334 | 898 | 328 |
| 79 | Surface Chemistry | 8 | 324 | 2268 | 2009 |
| 80 | marketing | 19 | 321 | 751 | 1075 |
| 81 | Virology | 7 | 317 | 1513 | 1550 |
| 82 | Humanities | 15 | 316 | 590 | 370 |
| 83 | United States | 11 | 304 | 2388 | 2081 |
| 84 | Business | 21 | 302 | 766 | 1379 |
| 85 | Petroleum Geology | 8 | 299 | 279 | 243 |
| 86 | Solid State Physics | 10 | 294 | 2191 | 1833 |
| 87 | Sustainable Engineering | 3 | 292 | 1550 | 961 |
| 88 | Sociology | 15 | 289 | 1262 | 1344 |
| 88 | Molecular Genetics | 7 | 289 | 1069 | 1059 |
| 90 | Genetics | 4 | 282 | 2501 | 1894 |
| 90 | Manufacturing Processes | 12 | 282 | 1135 | 1171 |
| 92 | Biomass Energy | 11 | 276 | 1249 | 1626 |
| 92 | Phylogeny | 7 | 276 | 535 | 563 |
| 94 | Zoology | 17 | 275 | 1039 | 1062 |
| 95 | Optics | 11 | 268 | 2230 | 1816 |
| 95 | International Finance | 7 | 268 | 1135 | 899 |
| 97 | Marine Geology | 6 | 262 | 403 | 276 |
| 98 | Production Engineering | 9 | 258 | 1121 | 875 |
| 99 | Evolution | 8 | 253 | 1034 | 1074 |
| 100 | Geography | 15 | 252 | 852 | 1093 |
| 100 | Public Administration | 17 | 252 | 525 | 617 |
| 102 | Teaching | 17 | 251 | 647 | 822 |
| 103 | Metabolic diseases | 3 | 249 | 1599 | 1248 |
| 103 | Southeast Asia | 25 | 249 | 37 | 65 |
| 103 | finance | 13 | 249 | 1141 | 1174 |
| 106 | Marine Pollution | 10 | 245 | 603 | 786 |
| 106 | Plants | 6 | 245 | 1368 | 1230 |
| 108 | Critical Care | 1 | 240 | 1443 | 888 |
| 108 | Critical Care Medicine | 1 | 240 | 1368 | 882 |
| 110 | Occupational Health | 2 | 238 | 1185 | 408 |
| 111 | Obesity | 1 | 236 | 2157 | 1119 |
| 112 | water reuse | 7 | 235 | 115 | 134 |
| 113 | Homeostasis | 1 | 234 | 583 | 585 |
| 113 | Cell metabolism | 1 | 234 | 984 | 647 |
| 115 | Green Chemistry | 2 | 232 | 1806 | 1308 |
| 116 | Paleontology | 11 | 227 | 645 | 638 |
| 116 | Colloids | 4 | 227 | 2821 | 2354 |
| 118 | Health Policy | 9 | 226 | 1067 | 1029 |
| 119 | Mathematics | 40 | 224 | 2102 | 2627 |
| 120 | occupational diseases | 4 | 217 | 587 | 445 |
| 120 | environmental exposure | 3 | 217 | 1783 | 1249 |
| 122 | Marine Ecology | 7 | 216 | 487 | 376 |
| 123 | Geriatrics | 5 | 214 | 1892 | 1371 |
| 124 | Money | 2 | 209 | 462 | 210 |
| 125 | Mineralogy | 11 | 206 | 680 | 755 |
| 125 | Bioinorganic chemistry | 1 | 206 | 1862 | 856 |
| 127 | Aging | 3 | 204 | 2143 | 1368 |
| 128 | Robotics | 4 | 203 | 1450 | 997 |
| 128 | plant molecular biology | 2 | 203 | 1546 | 1171 |
| 130 | Environmental Chemistry | 6 | 197 | 1412 | 1554 |
| 131 | Energy Policy | 5 | 192 | 2036 | 2122 |
| 131 | Marine biodiversity | 2 | 192 | 265 | 46 |
| 133 | Technology | 6 | 189 | 2491 | 2123 |
| 134 | Europe | 2 | 188 | 2994 | 1485 |
| 135 | human behavior | 3 | 187 | 2234 | 1954 |
| 135 | Behavior | 3 | 187 | 2627 | 2195 |
| 137 | Image Processing | 5 | 186 | 1671 | 1457 |
| 137 | Environmental Management | 6 | 186 | 2022 | 2320 |
| 139 | Tourism | 9 | 185 | 908 | 1312 |
| 140 | Australia | 16 | 183 | 583 | 878 |
| 141 | Environmental Policy | 10 | 182 | 1724 | 2424 |
| 142 | Chemical kinetics | 7 | 179 | 431 | 209 |
| 143 | Zeolites | 2 | 178 | 1108 | 761 |
| 143 | Information Science | 3 | 178 | 2496 | 1808 |
| 145 | Solid State Chemistry | 7 | 176 | 1743 | 1548 |
| 146 | Photochemistry | 4 | 175 | 1443 | 1121 |
| 146 | Plant physiology | 2 | 175 | 2121 | 1585 |
| 146 | Photobiology | 4 | 175 | 1180 | 900 |
| 149 | solar power | 2 | 174 | 993 | 705 |
| 149 | solar cells | 2 | 174 | 1056 | 750 |
| 151 | Nanochemistry | 1 | 173 | 1874 | 729 |
| 152 | coal | 7 | 171 | 1051 | 1319 |
| 153 | Nanostructures | 3 | 169 | 1881 | 1435 |
| 154 | Human Geography | 8 | 165 | 637 | 640 |
| 154 | Forest Ecology | 7 | 165 | 621 | 762 |
| 154 | Africa | 9 | 165 | 789 | 621 |
| 157 | Nutrition | 4 | 162 | 2924 | 2588 |
| 158 | Comparative Education | 10 | 161 | 53 | 69 |
| 159 | miniaturization | 4 | 159 | 1443 | 1365 |
| 160 | Spectrum analysis | 4 | 157 | 3167 | 2619 |
| 161 | Sustainable Development | 10 | 154 | 993 | 1578 |
| 161 | Adolescent | 7 | 154 | 1232 | 1262 |
| 163 | Cosmochemistry | 3 | 150 | 828 | 678 |
| 164 | Middle East | 6 | 148 | 664 | 424 |
| 165 | Condensed Matter | 1 | 145 | 3156 | 1912 |
| 166 | Nanoparticles | 3 | 142 | 1769 | 1425 |
| 167 | Organic Geochemistry | 2 | 141 | 426 | 347 |
| 168 | Social work | 3 | 139 | 1292 | 778 |
| 169 | Animal Behavior | 4 | 135 | 1465 | 1470 |
| 169 | Forest Management | 6 | 135 | 650 | 776 |
| 171 | Quantum Optics | 2 | 132 | 1029 | 546 |
| 171 | Atomic spectroscopy | 2 | 132 | 1274 | 737 |
| 171 | Laser Spectroscopy | 2 | 132 | 984 | 505 |
| 174 | technical education | 4 | 131 | 562 | 412 |
| 175 | Materials Science | 6 | 130 | 2832 | 2875 |
| 175 | Watershed management | 1 | 130 | 515 | 66 |
| 175 | polar regions | 5 | 130 | 457 | 440 |
| 178 | Child welfare | 2 | 129 | 1267 | 702 |
| 179 | Health Services Research | 4 | 127 | 1221 | 984 |
| 180 | Biophysics | 7 | 126 | 3057 | 3433 |
| 180 | Parasitology | 5 | 126 | 1665 | 1543 |
| 182 | housing policy | 1 | 124 | 248 | 48 |
| 182 | Housing | 1 | 124 | 837 | 411 |
| 184 | International Education | 8 | 123 | 83 | 148 |
| 185 | sedimentary basins | 1 | 122 | 323 | 182 |
| 185 | Food | 4 | 122 | 2474 | 2472 |
| 187 | Japan | 5 | 121 | 1346 | 1106 |
| 188 | Neurology | 3 | 120 | 3315 | 2982 |
| 188 | Meteorites | 3 | 120 | 759 | 835 |
| 190 | nanoscience | 1 | 117 | 3346 | 2308 |
| 191 | Chemical analysis | 2 | 116 | 1272 | 935 |
| 192 | Child Development | 5 | 112 | 1322 | 1443 |
| 193 | Process Control | 4 | 111 | 818 | 1149 |
| 193 | Developmental Biology | 1 | 111 | 2267 | 1602 |
| 193 | Production Management | 4 | 111 | 990 | 1278 |
| 196 | Developing countries | 11 | 110 | 1115 | 1706 |
| 197 | Nonlinear functional analysis | 1 | 108 | 1713 | 868 |
| 197 | medical education | 6 | 108 | 1079 | 1148 |
| 199 | Cytology | 4 | 105 | 2671 | 2854 |
| 199 | Rural Development | 2 | 105 | 637 | 468 |
| 201 | Insects | 4 | 104 | 1198 | 1025 |
| 201 | Entomology | 4 | 104 | 1853 | 1424 |
| 203 | Numerical Analysis | 11 | 103 | 1329 | 1601 |
| 203 | Parasitic Diseases | 4 | 103 | 1495 | 1479 |
| 203 | Language teaching | 7 | 103 | 17 | 51 |
| 203 | second language | 7 | 103 | 17 | 51 |
| 203 | disease vectors | 4 | 103 | 760 | 817 |
| 203 | Parasites | 4 | 103 | 1308 | 1217 |
| 203 | energy development | 5 | 103 | 568 | 867 |
| 203 | energy resources | 3 | 103 | 1286 | 1613 |
| 211 | Neural circuitry | 7 | 102 | 1351 | 1907 |
| 212 | Measurement | 5 | 101 | 1046 | 1094 |
| 212 | Electrochemical Analysis | 4 | 101 | 1377 | 1356 |
| 214 | Microbial Ecology | 4 | 100 | 1618 | 2093 |
| 214 | Molecular Spectroscopy | 2 | 100 | 2023 | 1501 |
| 216 | Political Science | 9 | 99 | 1009 | 1050 |
| 217 | Ethology | 3 | 98 | 1292 | 1427 |
| 218 | Pharmacology | 5 | 97 | 3109 | 3373 |
| 218 | economic policy | 12 | 97 | 1168 | 1512 |
| 218 | Detectors | 4 | 97 | 1308 | 1294 |
| 221 | Multilingualism | 4 | 95 | 224 | 239 |
| 222 | Computer Science | 5 | 93 | 1628 | 1487 |
| 222 | Nursing | 17 | 93 | 722 | 1336 |
| 222 | Learning | 9 | 93 | 713 | 1101 |
| 225 | Child psychology | 3 | 92 | 1266 | 1308 |
| 226 | Paleoecology | 6 | 91 | 745 | 972 |
| 227 | Composite Materials | 4 | 89 | 2126 | 2400 |
| 227 | Planets | 2 | 89 | 1402 | 1386 |
| 229 | Conservation Biology | 3 | 88 | 1020 | 1023 |
| 230 | mass transfer | 3 | 85 | 1616 | 1600 |
| 230 | Water Microbiology | 3 | 85 | 430 | 449 |
| 232 | Malaria | 2 | 84 | 708 | 593 |
| 233 | complementary therapies | 5 | 83 | 1244 | 1534 |
| 233 | Visual Perception | 1 | 83 | 1773 | 1203 |
| 233 | Brain | 1 | 83 | 2850 | 2132 |
| 233 | Memory | 1 | 83 | 1921 | 1393 |
| 233 | Attention | 1 | 83 | 1852 | 1252 |
| 233 | Perception | 1 | 83 | 1973 | 1347 |
| 239 | Medical Anthropology | 4 | 82 | 981 | 1327 |
| 240 | Public Relations | 5 | 81 | 306 | 386 |
| 240 | Chemical Ecology | 3 | 81 | 508 | 627 |
| 240 | Economic Development | 7 | 81 | 942 | 1515 |
| 243 | Alternative Medicine | 3 | 79 | 1458 | 1511 |
| 243 | Geobiology | 2 | 79 | 502 | 447 |
| 243 | geological modeling | 5 | 79 | 334 | 429 |
| 246 | Signal Processing | 4 | 77 | 2064 | 2196 |
| 246 | Solitons | 1 | 77 | 1869 | 1161 |
| 246 | Fractals | 1 | 77 | 1877 | 1164 |
| 246 | Chaos | 1 | 77 | 1869 | 1161 |
| 250 | Global Health | 4 | 76 | 853 | 840 |
| 250 | Petrology | 6 | 76 | 642 | 895 |
| 250 | Analytical Biochemistry | 2 | 76 | 1847 | 1534 |
| 250 | industrial hygiene | 3 | 76 | 970 | 647 |
| 250 | Technological Innovations | 2 | 76 | 1314 | 1096 |
| 255 | Cancer | 6 | 74 | 1694 | 2465 |
| 256 | Medicinal plants | 3 | 72 | 1315 | 1622 |
| 256 | United Kingdom | 6 | 72 | 935 | 1334 |
| 256 | Agriculture | 6 | 72 | 1389 | 1869 |
| 259 | Psychology | 5 | 71 | 3423 | 3589 |
| 259 | Germany | 5 | 71 | 431 | 266 |
| 261 | Operations Research | 3 | 70 | 2043 | 1930 |
| 261 | System analysis | 5 | 70 | 1862 | 2166 |
| 263 | Pharmacognosy | 2 | 68 | 2028 | 2016 |
| 263 | Oral Medicine | 1 | 68 | 1137 | 593 |
| 263 | Mental Health | 2 | 68 | 1740 | 1412 |
| 266 | Mechanical Engineering | 4 | 67 | 2064 | 1839 |
| 266 | Photonics | 3 | 67 | 1660 | 1740 |
| 266 | hazard mitigation | 7 | 67 | 479 | 1060 |
| 266 | innovation | 2 | 67 | 743 | 877 |
| 266 | research and development | 1 | 67 | 597 | 457 |
| 266 | Growth | 2 | 67 | 1091 | 1257 |
| 272 | Strategic planning | 3 | 66 | 792 | 872 |
| 272 | Chemical processes | 2 | 66 | 722 | 531 |
| 274 | drugs | 3 | 64 | 1716 | 1827 |
| 275 | Energy Storage | 6 | 63 | 845 | 1332 |
| 276 | Systems Engineering | 4 | 62 | 1902 | 2041 |
| 276 | Endocrinology | 2 | 62 | 2391 | 2388 |
| 276 | Paleoclimatology | 4 | 62 | 905 | 1165 |
| 276 | Engineering Geology | 5 | 62 | 1044 | 1427 |
| 276 | Population | 5 | 62 | 644 | 988 |
| 276 | Informatics | 2 | 62 | 988 | 901 |
| 276 | lasers | 6 | 62 | 1550 | 1825 |
| 283 | International Relations | 5 | 61 | 775 | 774 |
| 283 | computer networks | 3 | 61 | 2249 | 2299 |
| 285 | ethnobiology | 4 | 59 | 153 | 382 |
| 286 | Paleogeography | 3 | 58 | 901 | 1063 |
| 287 | Ethnobotany | 4 | 57 | 114 | 347 |
| 287 | Globalization | 3 | 57 | 550 | 641 |
| 287 | Organometallic compounds | 3 | 57 | 1297 | 1336 |
| 287 | Communication | 5 | 57 | 1578 | 2006 |
| 291 | Computer Graphics | 3 | 56 | 1651 | 1668 |
| 291 | Bioenergetics | 2 | 56 | 948 | 1050 |
| 291 | Phytochemistry | 2 | 56 | 398 | 407 |
| 291 | Clinical Pharmacology | 2 | 56 | 1264 | 1223 |
| 291 | Bacteriology | 1 | 56 | 2127 | 1952 |
| 291 | Phytoremediation | 2 | 56 | 398 | 407 |
| 291 | environmental remediation | 2 | 56 | 480 | 468 |
| 291 | Bioreactors | 2 | 56 | 398 | 407 |
| 291 | drug therapy | 2 | 56 | 1678 | 1652 |
| 291 | Cellulose | 1 | 56 | 1069 | 857 |
| 291 | Synapses | 1 | 56 | 418 | 340 |
| 302 | Graph Theory | 1 | 55 | 1181 | 535 |
| 302 | Discrete Mathematics | 1 | 55 | 710 | 158 |
| 302 | preventive medicine | 2 | 55 | 1167 | 1211 |
| 302 | Machining | 2 | 55 | 198 | 140 |
| 302 | graph | 1 | 55 | 710 | 158 |
| 302 | Combinatorial analysis | 1 | 55 | 1442 | 745 |
| 308 | Anthropology | 4 | 53 | 1274 | 1347 |
| 308 | Wireless Communication Systems | 4 | 53 | 1959 | 2130 |
| 308 | Traditional medicine | 3 | 53 | 184 | 377 |
| 308 | Molecular ecology | 2 | 53 | 1066 | 1409 |
| 308 | actuators | 3 | 53 | 2006 | 2400 |
| 308 | transducers | 3 | 53 | 2006 | 2400 |
| 308 | Ethnomedicine | 3 | 53 | 165 | 363 |
| 315 | Cell Biology | 2 | 51 | 3096 | 3308 |
| 316 | Agricultural Ecology | 2 | 50 | 1146 | 1384 |
| 316 | Plant Morphology | 3 | 50 | 599 | 683 |
| 316 | energy conservation | 2 | 50 | 2307 | 2571 |
| 316 | Evidence-Based Medicine | 1 | 50 | 1210 | 907 |
| 316 | East Asia | 2 | 50 | 819 | 553 |
| 321 | Physiology | 3 | 49 | 3184 | 3632 |
| 321 | Soil Mechanics | 1 | 49 | 1427 | 1163 |
| 321 | Rock Mechanics | 1 | 49 | 1173 | 1003 |
| 321 | Animal ecology | 4 | 49 | 936 | 1201 |
| 321 | Urbanization | 2 | 49 | 242 | 227 |
| 321 | Physical fitness | 1 | 49 | 1493 | 1212 |
| 321 | Diet | 1 | 49 | 2362 | 2293 |
| 328 | air quality management | 1 | 48 | 947 | 742 |
| 328 | Smart Materials | 4 | 48 | 796 | 1069 |
| 328 | hygiene | 1 | 48 | 861 | 654 |
| 331 | Environmental Microbiology | 1 | 47 | 1880 | 1825 |
| 331 | Adult Education | 3 | 47 | 639 | 587 |
| 331 | Quality Control | 1 | 47 | 2492 | 2083 |
| 331 | food technology | 1 | 47 | 3149 | 2802 |
| 331 | Continuing Education | 3 | 47 | 459 | 402 |
| 331 | Biodegradation | 1 | 47 | 1278 | 1139 |
| 331 | Travel | 1 | 47 | 1277 | 865 |
| 331 | food handling | 1 | 47 | 1447 | 1366 |
| 331 | Reproduction | 1 | 47 | 2447 | 2016 |
| 331 | Fouling | 1 | 47 | 448 | 400 |
| 341 | Egypt | 1 | 46 | 1125 | 820 |
| 341 | Aquaculture | 7 | 46 | 883 | 1539 |
| 343 | Medical Technology | 3 | 45 | 1432 | 1801 |
| 343 | Dermatology | 1 | 45 | 1757 | 1439 |
| 343 | Transnational corporations | 3 | 45 | 387 | 618 |
| 343 | pheromones | 2 | 45 | 576 | 757 |
| 343 | race relations | 3 | 45 | 608 | 656 |
| 343 | Mites | 2 | 45 | 497 | 425 |
| 349 | Public Policy | 3 | 43 | 1603 | 2072 |
| 349 | Metabolism | 1 | 43 | 2463 | 2395 |
| 349 | Sociolinguistics | 10 | 43 | 197 | 519 |
| 349 | Enteral nutrition | 1 | 43 | 1067 | 1055 |
| 349 | Parenteral nutrition | 1 | 43 | 1208 | 1155 |
| 349 | natural disasters | 6 | 43 | 856 | 1682 |
| 355 | Leadership | 2 | 42 | 693 | 886 |
| 355 | Corporate Social Responsibility | 1 | 42 | 645 | 739 |
| 355 | environmental auditing | 1 | 42 | 668 | 749 |
| 355 | Decision making | 2 | 42 | 1687 | 1723 |
| 359 | Psychiatry | 5 | 41 | 2619 | 3517 |
| 359 | Quantum electronics | 5 | 41 | 1242 | 1591 |
| 359 | Ethnic relations | 3 | 41 | 598 | 581 |
| 359 | Ethnic Conflict | 2 | 41 | 327 | 406 |
| 359 | Optoelectronic devices | 5 | 41 | 735 | 910 |
| 359 | forced migration | 2 | 41 | 327 | 406 |
| 359 | body temperature | 2 | 41 | 696 | 754 |
| 359 | Methodology | 3 | 41 | 523 | 593 |
| 367 | Systems Analysis | 3 | 40 | 1152 | 1377 |
| 367 | Culture | 3 | 40 | 1067 | 1012 |
| 367 | Genes | 2 | 40 | 1215 | 1343 |
| 370 | Intercultural Communication | 12 | 39 | 112 | 632 |
| 370 | Language planning | 8 | 39 | 51 | 153 |
| 370 | Tropical Medicine | 2 | 39 | 1829 | 1846 |
| 370 | natural gas | 2 | 39 | 433 | 594 |
| 374 | Retina | 1 | 38 | 282 | 425 |
| 374 | Building Materials | 1 | 38 | 2189 | 2221 |
| 374 | Genomics | 2 | 38 | 2770 | 3033 |
| 374 | Cognitive Science | 3 | 38 | 1531 | 2055 |
| 374 | machinery | 1 | 38 | 1303 | 997 |
| 374 | aquatic organisms | 2 | 38 | 4 | 27 |
| 374 | eye | 1 | 38 | 339 | 457 |
| 374 | Capital market | 3 | 38 | 435 | 708 |
| 382 | Early Childhood Education | 2 | 37 | 732 | 727 |
| 382 | Soil Science | 2 | 37 | 2000 | 2222 |
| 382 | Genetic engineering | 2 | 37 | 2028 | 2295 |
| 382 | Simulation Methods | 3 | 37 | 1023 | 1344 |
| 382 | Synthetic biology | 2 | 37 | 365 | 496 |
| 382 | sexual behavior | 1 | 37 | 1069 | 929 |
| 382 | Psychophysiology | 1 | 37 | 3016 | 2797 |
| 389 | Economic Geography | 1 | 36 | 627 | 525 |
| 389 | Emergency Nursing | 1 | 36 | 289 | 202 |
| 391 | Visual Communication | 1 | 35 | 837 | 596 |
| 391 | Optoelectronics | 2 | 35 | 672 | 521 |
| 391 | Image enhancement | 1 | 35 | 676 | 541 |
| 391 | Pacific Islands | 2 | 35 | 410 | 349 |
| 391 | Aquatic ecology | 2 | 35 | 1051 | 1121 |
| 396 | Energy Conversion | 3 | 34 | 1147 | 1668 |
| 396 | Knowledge management | 3 | 34 | 395 | 579 |
| 396 | fuel cells | 3 | 34 | 1174 | 1632 |
| 396 | Mineral resources | 4 | 34 | 505 | 1185 |
| 400 | Computational Biology | 1 | 33 | 3059 | 2760 |
| 400 | international trade | 2 | 33 | 920 | 960 |
| 400 | cultural pluralism | 2 | 33 | 543 | 583 |
| 403 | Cross-Cultural Studies | 5 | 32 | 492 | 1081 |
| 403 | monetary policy | 1 | 32 | 125 | 53 |
| 403 | Corporate governance | 2 | 32 | 786 | 1044 |
| 403 | Acarology | 1 | 32 | 519 | 434 |
| 403 | Ticks | 1 | 32 | 503 | 433 |
| 403 | Acari | 1 | 32 | 503 | 433 |
| 409 | Pharmaceutical Chemistry | 2 | 31 | 3199 | 3475 |
| 409 | Environmental Education | 1 | 31 | 672 | 593 |
| 409 | India | 4 | 31 | 1245 | 1418 |
| 412 | health services accessibility | 1 | 30 | 1389 | 1219 |
| 412 | Chromosome mapping | 1 | 30 | 2190 | 2256 |
| 412 | mathematical analysis | 6 | 30 | 1880 | 2269 |
| 412 | gene mapping | 1 | 30 | 2328 | 2421 |
| 412 | international cooperation | 1 | 30 | 1013 | 929 |
| 417 | Toxicology | 3 | 29 | 3520 | 4509 |
| 417 | pollutants | 1 | 29 | 2495 | 2679 |
| 417 | Environmental pollutants | 1 | 29 | 2843 | 2967 |
| 417 | Hospitality industry | 2 | 29 | 547 | 825 |
| 417 | cross-cultural comparison | 2 | 29 | 661 | 812 |
| 422 | Applied Linguistics | 5 | 28 | 474 | 782 |
| 422 | Risk Management | 2 | 28 | 810 | 1029 |
| 422 | Phylogenetics | 2 | 28 | 127 | 183 |
| 422 | Telecommunication | 3 | 28 | 2387 | 2824 |
| 422 | bats | 1 | 28 | 237 | 196 |
| 427 | Statistics | 5 | 27 | 1908 | 2339 |
| 427 | Educational Psychology | 1 | 27 | 2003 | 1823 |
| 427 | Inclusive Education | 3 | 27 | 156 | 362 |
| 427 | Green Technology | 1 | 27 | 869 | 874 |
| 427 | Coral reef biology | 2 | 27 | 365 | 538 |
| 427 | Social policy | 2 | 27 | 1241 | 1352 |
| 427 | Entrepreneurship | 3 | 27 | 1015 | 1726 |
| 427 | Integration | 3 | 27 | 149 | 358 |
| 435 | Physical Therapy | 1 | 26 | 1696 | 1585 |
| 435 | Ethics | 2 | 26 | 1109 | 1256 |
| 435 | Plant Taxonomy | 2 | 26 | 481 | 599 |
| 435 | Physical Chemistry | 4 | 26 | 1770 | 2508 |
| 435 | Remote Sensing | 2 | 26 | 1728 | 1686 |
| 435 | Water | 1 | 26 | 2964 | 3160 |
| 435 | Heat Exchangers | 1 | 26 | 1759 | 1902 |
| 435 | Sexual health | 1 | 26 | 1019 | 883 |
| 435 | Taste | 2 | 26 | 379 | 559 |
| 435 | flavor | 2 | 26 | 245 | 438 |
| 435 | smell | 2 | 26 | 379 | 559 |
| 435 | Diplomatic relations | 1 | 26 | 1020 | 570 |
| 435 | rehabilitation | 1 | 26 | 2717 | 2594 |
| 448 | Social Psychology | 3 | 25 | 2081 | 2797 |
| 448 | Sleep Disorders | 1 | 25 | 1789 | 1655 |
| 448 | technology transfer | 1 | 25 | 551 | 590 |
| 448 | Organometallic chemistry | 4 | 25 | 1896 | 2525 |
| 448 | Health | 4 | 25 | 1664 | 2635 |
| 448 | Computational Complexity | 1 | 25 | 1641 | 1373 |
| 448 | Sleep | 1 | 25 | 1844 | 1675 |
| 455 | Information Theory | 2 | 24 | 1509 | 1664 |
| 455 | Emergency Medical Services | 1 | 24 | 1018 | 940 |
| 455 | Polymers | 2 | 24 | 3850 | 4104 |
| 455 | Comparative Physiology | 2 | 24 | 883 | 1201 |
| 455 | Mining Geology | 3 | 24 | 74 | 138 |
| 455 | Educational Research | 2 | 24 | 116 | 185 |
| 455 | emergency management | 1 | 24 | 1139 | 1158 |
| 455 | Imaging systems | 2 | 24 | 1043 | 1025 |
| 455 | Classroom Environment | 3 | 24 | 49 | 194 |
| 464 | Information Systems | 1 | 23 | 2140 | 2080 |
| 464 | Adolescent Medicine | 3 | 23 | 481 | 950 |
| 464 | Health Education | 3 | 23 | 1633 | 2199 |
| 464 | Child | 4 | 23 | 1707 | 2501 |
| 464 | Nonlinear Dynamics | 1 | 23 | 2271 | 2215 |
| 464 | Drug design | 1 | 23 | 2139 | 2171 |
| 464 | adolescence | 3 | 23 | 888 | 1410 |
| 464 | Arthropods | 2 | 23 | 312 | 447 |
| 464 | peptides | 1 | 23 | 1293 | 1232 |
| 464 | Statistical physics | 1 | 23 | 3534 | 3382 |
| 464 | Dementia | 1 | 23 | 1618 | 1192 |
| 464 | Alzheimer's disease | 1 | 23 | 1645 | 1250 |
| 464 | Fuzzy systems | 2 | 23 | 2007 | 2112 |
| 464 | proteins | 1 | 23 | 2402 | 2394 |
| 478 | Arts | 2 | 22 | 541 | 385 |
| 478 | Multimedia Systems | 4 | 22 | 1581 | 2314 |
| 478 | sustainable forestry | 2 | 22 | 140 | 185 |
| 478 | Social behavior | 1 | 22 | 1710 | 1675 |
| 478 | values | 1 | 22 | 519 | 231 |
| 478 | plant communities | 2 | 22 | 1131 | 1661 |
| 484 | Pharmacy | 2 | 21 | 2053 | 2614 |
| 484 | Systems Biology | 1 | 21 | 1945 | 2159 |
| 484 | Thin Films | 1 | 21 | 892 | 788 |
| 484 | Investment analysis | 1 | 21 | 1583 | 1466 |
| 484 | Small Business | 1 | 21 | 1149 | 1445 |
| 484 | Cheminformatics | 1 | 21 | 571 | 676 |
| 490 | Computer Vision | 3 | 20 | 1111 | 1696 |
| 490 | Population Genetics | 1 | 20 | 1534 | 1741 |
| 490 | Coastal zone management | 2 | 20 | 805 | 1194 |
| 490 | Soft Condensed Matter | 2 | 20 | 1167 | 1558 |
| 490 | Migration | 3 | 20 | 168 | 323 |
| 495 | Automation | 3 | 19 | 2057 | 2817 |
| 495 | Paleobiology | 3 | 19 | 361 | 535 |
| 495 | Religion | 2 | 19 | 1108 | 863 |
| 495 | Intellectual Property | 2 | 19 | 255 | 208 |
| 495 | patents | 2 | 19 | 80 | 169 |
| 495 | curriculum evaluation | 1 | 19 | 698 | 718 |
| 495 | Petroleum | 1 | 19 | 451 | 395 |
| 495 | Textile industry | 3 | 19 | 478 | 669 |
| 503 | Oceanography | 4 | 18 | 1294 | 2149 |
| 503 | Mathematics Education | 4 | 18 | 417 | 696 |
| 503 | Health Services Administration | 1 | 18 | 1551 | 1620 |
| 503 | Regional Planning | 3 | 18 | 1396 | 2088 |
| 503 | Public Finance | 1 | 18 | 377 | 303 |
| 503 | Respiratory Infections | 1 | 18 | 467 | 534 |
| 503 | civilization | 3 | 18 | 1027 | 792 |
| 503 | Health promotion | 2 | 18 | 1226 | 1538 |
| 503 | Solutions | 3 | 18 | 396 | 654 |
| 503 | Algae | 1 | 18 | 1043 | 1140 |
| 503 | Croatia | 1 | 18 | 242 | 56 |
| 503 | health planning | 1 | 18 | 3003 | 2971 |
| 503 | planning | 1 | 18 | 1324 | 1394 |
| 503 | Influenza | 1 | 18 | 367 | 444 |
| 517 | Astronomy | 1 | 17 | 2839 | 2832 |
| 517 | Microelectronics | 1 | 17 | 2143 | 2264 |
| 517 | Quantum Gravity | 3 | 17 | 1804 | 2211 |
| 517 | Eastern Europe | 2 | 17 | 1142 | 1197 |
| 517 | Communist countries | 2 | 17 | 263 | 352 |
| 517 | Soviet Union | 2 | 17 | 898 | 898 |
| 517 | polymerization | 1 | 17 | 3931 | 3889 |
| 524 | Vocational Education | 2 | 16 | 625 | 889 |
| 524 | Career development | 2 | 16 | 558 | 845 |
| 524 | Popular culture | 1 | 16 | 930 | 611 |
| 524 | Language Policy | 2 | 16 | 139 | 315 |
| 524 | Mass Media | 2 | 16 | 1030 | 973 |
| 524 | Diffusion of innovations | 1 | 16 | 256 | 336 |
| 524 | Marine resources | 1 | 16 | 1105 | 1326 |
| 524 | Nonprofit organizations | 1 | 16 | 620 | 780 |
| 524 | Fisheries | 3 | 16 | 1419 | 2087 |
| 533 | Diabetes mellitus | 2 | 15 | 1721 | 2452 |
| 533 | soil microbiology | 1 | 15 | 1912 | 2420 |
| 533 | Soil biology | 1 | 15 | 1229 | 1562 |
| 533 | Primary health care | 2 | 15 | 1698 | 2357 |
| 533 | Host-parasite interactions | 1 | 15 | 1507 | 1892 |
| 533 | crime | 2 | 15 | 808 | 967 |
| 533 | Diabetes | 2 | 15 | 1766 | 2461 |
| 533 | Population Dynamics | 2 | 15 | 238 | 443 |
| 541 | Industrial Engineering | 1 | 14 | 2425 | 2670 |
| 541 | Religion and Politics | 1 | 14 | 126 | 82 |
| 541 | Operator theory | 3 | 14 | 455 | 619 |
| 541 | Drug targeting | 1 | 14 | 590 | 883 |
| 541 | Ideology | 1 | 14 | 156 | 152 |
| 541 | Waste management | 1 | 14 | 2043 | 2233 |
| 541 | Water Purification | 1 | 14 | 1715 | 1902 |
| 541 | Water quality management | 1 | 14 | 2492 | 2703 |
| 541 | Drug delivery systems | 1 | 14 | 2088 | 2400 |
| 541 | sustainability | 1 | 14 | 1427 | 1764 |
| 541 | Ferroelectricity | 1 | 14 | 1443 | 1318 |
| 541 | fame | 2 | 14 | 78 | 113 |
| 541 | cell interaction | 1 | 14 | 1353 | 1666 |
| 541 | Cell communication | 1 | 14 | 901 | 1209 |
| 541 | drug evaluation | 1 | 14 | 1710 | 2027 |
| 556 | Meteorology | 1 | 13 | 2589 | 2984 |
| 556 | Climatology | 2 | 13 | 1830 | 2581 |
| 556 | Distance Education | 2 | 13 | 465 | 940 |
| 556 | Community Psychology | 1 | 13 | 898 | 1074 |
| 556 | Community Psychiatry | 1 | 13 | 1324 | 1667 |
| 556 | Organizational change | 2 | 13 | 927 | 1453 |
| 556 | Pharmacy management | 1 | 13 | 464 | 529 |
| 556 | organizational effectiveness | 2 | 13 | 564 | 950 |
| 564 | Hydrology | 2 | 12 | 2512 | 3273 |
| 564 | community development | 1 | 12 | 1020 | 1156 |
| 564 | Mental Health Services | 1 | 12 | 1573 | 1828 |
| 564 | internet | 1 | 12 | 2319 | 2503 |
| 564 | child behavior | 1 | 12 | 611 | 774 |
| 564 | children | 1 | 12 | 792 | 927 |
| 570 | Data Mining | 2 | 11 | 1924 | 2826 |
| 570 | Cybernetics | 1 | 11 | 2195 | 2475 |
| 570 | genre | 1 | 11 | 465 | 621 |
| 570 | Speech Perception | 1 | 11 | 576 | 741 |
| 570 | auditory perception | 1 | 11 | 691 | 863 |
| 570 | Business Ethics | 3 | 11 | 989 | 1971 |
| 570 | Oral communication | 1 | 11 | 771 | 915 |
| 570 | city planning | 3 | 11 | 1522 | 2570 |
| 570 | Speech | 1 | 11 | 1294 | 1486 |
| 579 | Mechatronics | 1 | 10 | 1413 | 1677 |
| 579 | Electronics | 1 | 10 | 3741 | 3743 |
| 579 | Medical Ethics | 3 | 10 | 1069 | 1754 |
| 579 | Ecosystem management | 1 | 10 | 1083 | 1348 |
| 579 | Radiation | 1 | 10 | 2798 | 2978 |
| 579 | Bioinformatics | 1 | 10 | 2529 | 2897 |
| 579 | Radioisotopes | 1 | 10 | 1544 | 1608 |
| 579 | Reservoirs | 1 | 10 | 343 | 453 |
| 579 | Transport | 1 | 10 | 922 | 1222 |
| 579 | Sea | 1 | 10 | 825 | 1089 |
| 579 | lakes | 1 | 10 | 172 | 252 |
| 579 | Fishery resources | 1 | 10 | 906 | 1180 |
| 579 | Biomass | 1 | 10 | 1202 | 1710 |
| 592 | Optical Communications | 1 | 9 | 1193 | 1355 |
| 592 | Clinical Biochemistry | 1 | 9 | 1499 | 1778 |
| 592 | Multicultural Education | 5 | 9 | 268 | 827 |
| 592 | Fishery management | 3 | 9 | 757 | 1474 |
| 592 | consumer behavior | 1 | 9 | 973 | 1351 |
| 592 | Health insurance | 1 | 9 | 684 | 898 |
| 592 | peace | 2 | 9 | 580 | 885 |
| 592 | Nanotubes | 1 | 9 | 422 | 537 |
| 592 | recreation | 2 | 9 | 810 | 1218 |
| 601 | Neurosurgery | 1 | 8 | 1150 | 1429 |
| 601 | Pharmaceutical Technology | 1 | 8 | 1940 | 2421 |
| 601 | International Law | 1 | 8 | 665 | 419 |
| 601 | Pharmacokinetics | 1 | 8 | 1240 | 1673 |
| 601 | Psychometrics | 2 | 8 | 505 | 820 |
| 601 | Social Networks | 1 | 8 | 647 | 900 |
| 601 | Organizational learning | 1 | 8 | 991 | 1306 |
| 601 | Adsorption | 3 | 8 | 200 | 604 |
| 601 | Online social networks | 1 | 8 | 623 | 883 |
| 601 | Socioeconomic Factors | 1 | 8 | 1252 | 1790 |
| 601 | Marriage | 1 | 8 | 883 | 1173 |
| 601 | Biofilms | 1 | 8 | 335 | 589 |
| 601 | Developmental Disabilities | 1 | 8 | 1346 | 1780 |
| 601 | Family | 1 | 8 | 1499 | 1863 |
| 601 | Microorganisms | 1 | 8 | 1407 | 1848 |
| 601 | probabilities | 1 | 8 | 1776 | 1739 |
| 601 | Scandinavia | 3 | 8 | 567 | 1184 |
| 618 | Organic Chemistry | 1 | 7 | 3373 | 3818 |
| 618 | Demography | 2 | 7 | 763 | 1276 |
| 618 | Telemedicine | 1 | 7 | 633 | 987 |
| 618 | Control Theory | 2 | 7 | 1909 | 2528 |
| 618 | Research Design | 1 | 7 | 1588 | 2076 |
| 618 | environmental indicators | 1 | 7 | 1676 | 2375 |
| 618 | Bioacoustics | 1 | 7 | 197 | 323 |
| 618 | Advertising | 1 | 7 | 549 | 836 |
| 618 | Foraminifera | 1 | 7 | 168 | 256 |
| 618 | Ornithology | 2 | 7 | 1029 | 1449 |
| 618 | Genetic variation | 1 | 7 | 250 | 454 |
| 618 | Social Change | 1 | 7 | 1630 | 2246 |
| 618 | Latin America | 1 | 7 | 1648 | 1617 |
| 618 | industrial relations | 1 | 7 | 1315 | 1623 |
| 618 | Philippines | 1 | 7 | 246 | 398 |
| 618 | Catalysts | 1 | 7 | 1116 | 1461 |
| 634 | Geomorphology | 1 | 6 | 1796 | 2331 |
| 634 | Ceramics | 1 | 6 | 2004 | 2278 |
| 634 | Neurophysiology | 1 | 6 | 3087 | 3700 |
| 634 | Bioethics | 2 | 6 | 1083 | 1682 |
| 634 | poverty | 1 | 6 | 779 | 1176 |
| 634 | Social welfare | 1 | 6 | 961 | 1228 |
| 634 | Real Estate Investment | 1 | 6 | 307 | 431 |
| 634 | nursing ethics | 2 | 6 | 306 | 832 |
| 634 | Calorimetry | 1 | 6 | 1840 | 2253 |
| 634 | animals | 2 | 6 | 1402 | 2124 |
| 634 | Humanitarian Assistance | 2 | 6 | 29 | 112 |
| 634 | Seaweed | 1 | 6 | 818 | 1162 |
| 634 | Communication in politics | 1 | 6 | 518 | 687 |
| 634 | Pakistan | 1 | 6 | 51 | 35 |
| 634 | social marketing | 1 | 6 | 144 | 310 |
| 634 | Approximation Theory | 3 | 6 | 459 | 804 |
| 634 | Thermal analysis | 1 | 6 | 1840 | 2253 |
| 634 | Marine algae | 1 | 6 | 247 | 424 |
| 652 | Law | 2 | 5 | 1425 | 1733 |
| 652 | Criminology | 1 | 5 | 1326 | 1608 |
| 652 | Medical Laboratory Science | 1 | 5 | 2473 | 3255 |
| 652 | Ichthyology | 1 | 5 | 776 | 1001 |
| 652 | Parallel Processing | 1 | 5 | 687 | 1022 |
| 652 | Wildlife management | 1 | 5 | 826 | 1092 |
| 652 | Sports | 1 | 5 | 2731 | 2951 |
| 652 | starch | 1 | 5 | 588 | 893 |
| 652 | species diversity | 1 | 5 | 283 | 224 |
| 652 | Arts education | 4 | 5 | 3 | 19 |
| 652 | multimedia | 1 | 5 | 809 | 1114 |
| 652 | public records | 1 | 5 | 79 | 121 |
| 652 | Interactive multimedia | 1 | 5 | 949 | 1341 |
| 652 | Birds | 1 | 5 | 1469 | 1715 |
| 652 | Exercise | 1 | 5 | 2190 | 2522 |
| 667 | Telecommunication Systems | 1 | 4 | 2295 | 2732 |
| 667 | Urban Policy | 2 | 4 | 1054 | 1978 |
| 667 | Educational Leadership | 1 | 4 | 306 | 513 |
| 667 | Dance | 1 | 4 | 474 | 465 |
| 667 | economic forecasting | 1 | 4 | 599 | 877 |
| 667 | diffusion | 2 | 4 | 428 | 553 |
| 667 | Paleobiogeography | 1 | 4 | 150 | 281 |
| 667 | Ceramic materials | 2 | 4 | 1541 | 2459 |
| 667 | Religion and Psychology | 2 | 4 | 721 | 1442 |
| 667 | ethnic groups | 1 | 4 | 591 | 953 |
| 667 | wood | 1 | 4 | 765 | 1087 |
| 667 | Developed countries | 1 | 4 | 454 | 692 |
| 679 | Immunology | 1 | 3 | 3099 | 3847 |
| 679 | Functional Analysis | 2 | 3 | 1564 | 2206 |
| 679 | Long-Term Care | 2 | 3 | 571 | 1144 |
| 679 | Long-term care facilities | 2 | 3 | 566 | 1131 |
| 679 | Immunogenetics | 1 | 3 | 816 | 1163 |
| 679 | Herpetology | 1 | 3 | 620 | 882 |
| 679 | Access to Information | 1 | 3 | 469 | 976 |
| 679 | Crystallography | 2 | 3 | 1784 | 2337 |
| 679 | big data | 1 | 3 | 1228 | 1812 |
| 679 | Adaptive control systems | 1 | 3 | 1010 | 1415 |
| 679 | feeding behavior | 1 | 3 | 1090 | 1637 |
| 679 | livestock | 2 | 3 | 585 | 1085 |
| 679 | Microscopy | 1 | 3 | 1990 | 2572 |
| 679 | Development | 1 | 3 | 1232 | 1790 |
| 679 | Amphibians | 1 | 3 | 483 | 712 |
| 679 | Economic Assistance | 1 | 3 | 1120 | 1661 |
| 679 | Reptiles | 1 | 3 | 524 | 801 |
| 679 | Autism | 1 | 3 | 985 | 1449 |
| 679 | Information dissemination | 1 | 3 | 469 | 976 |
| 679 | world | 1 | 3 | 1117 | 1748 |
| 679 | Immunity | 1 | 3 | 1881 | 2548 |
| 679 | Appetite | 1 | 3 | 978 | 1507 |
| 679 | autism spectrum disorder | 1 | 3 | 139 | 331 |
| 702 | Pediatrics | 1 | 2 | 2493 | 3299 |
| 702 | Internet of Things | 1 | 2 | 1578 | 2118 |
| 702 | Pharmacogenetics | 1 | 2 | 1163 | 1694 |
| 702 | Language Acquisition | 1 | 2 | 604 | 937 |
| 702 | Psychiatric Nursing | 1 | 2 | 1047 | 1532 |
| 702 | Genetic Research | 1 | 2 | 316 | 632 |
| 702 | Mental Disorders | 1 | 2 | 3025 | 3897 |
| 702 | Microfabrication | 1 | 2 | 639 | 997 |
| 702 | Animal husbandry | 1 | 2 | 501 | 831 |
| 702 | soil conservation | 1 | 2 | 1298 | 1893 |
| 702 | Pastoral Theology | 1 | 2 | 269 | 315 |
| 702 | local government | 1 | 2 | 591 | 991 |
| 702 | soil pollution | 1 | 2 | 1056 | 1623 |
| 702 | Nanomanufacturing | 1 | 2 | 241 | 351 |
| 702 | Optical materials | 3 | 2 | 2280 | 3651 |
| 702 | visualization | 2 | 2 | 1559 | 2192 |
| 702 | Korea | 1 | 2 | 683 | 1002 |
| 702 | Yugoslavia | 2 | 2 | 107 | 229 |
| 702 | Crystal growth | 1 | 2 | 1464 | 1928 |
| 702 | Reading | 1 | 2 | 920 | 1328 |
| 702 | Chemical industry | 1 | 2 | 1879 | 2473 |
| 702 | Literacy | 1 | 2 | 553 | 810 |
| 702 | Mollusks | 1 | 2 | 443 | 674 |
| 725 | Electrical Engineering | 1 | 1 | 3741 | 4421 |
| 725 | Philosophy | 2 | 1 | 1684 | 2215 |
| 725 | Hydrogeology | 1 | 1 | 1055 | 1612 |
| 725 | Historical Geography | 1 | 1 | 326 | 446 |
| 725 | Autobiography | 1 | 1 | 230 | 274 |
| 725 | Mathematical Physics | 2 | 1 | 2968 | 4074 |
| 725 | Human-Computer Interaction | 1 | 1 | 2318 | 3359 |
| 725 | science fiction | 1 | 1 | 130 | 9 |
| 725 | Photogrammetry | 1 | 1 | 1369 | 1748 |
| 725 | Biological Systems | 1 | 1 | 953 | 1519 |
| 725 | Sensor Networks | 1 | 1 | 529 | 896 |
| 725 | Ocean Engineering | 1 | 1 | 2074 | 2770 |
| 725 | Calculus of Variations | 1 | 1 | 835 | 1117 |
| 725 | Gerontology | 1 | 1 | 2500 | 3180 |
| 725 | Government policy | 1 | 1 | 314 | 577 |
| 725 | older people | 2 | 1 | 1675 | 2613 |
| 725 | Religious minorities | 1 | 1 | 70 | 127 |
| 725 | Muslims | 1 | 1 | 77 | 138 |
| 725 | economic conditions | 1 | 1 | 812 | 1175 |
| 725 | mammals | 1 | 1 | 1389 | 1987 |
| 745 | Applied Mathematics | 1 | 0 | 594 | 948 |
| 745 | Econometrics | 1 | 0 | 1938 | 2607 |
| 745 | Engineering Mathematics | 2 | 0 | 2167 | 3510 |
| 745 | Theology | 1 | 0 | 1084 | 1221 |
| 745 | Journalism | 1 | 0 | 901 | 1339 |
| 745 | Political Sociology | 1 | 0 | 797 | 1242 |
| 745 | Plate Tectonics | 1 | 0 | 477 | 764 |
| 745 | ethnicity | 1 | 0 | 1182 | 1728 |
| 745 | nursing education | 1 | 0 | 317 | 531 |
| 745 | Nationalism | 1 | 0 | 625 | 1083 |
| 745 | Semiconductors | 1 | 0 | 2737 | 3480 |
| 745 | Kalman Filtering | 1 | 0 | 217 | 368 |
| 745 | Harmonic Analysis | 1 | 0 | 286 | 529 |
| 745 | Family Therapy | 1 | 0 | 1155 | 1816 |
| 745 | child mental health | 1 | 0 | 788 | 1350 |
| 745 | personality | 1 | 0 | 2051 | 2949 |
| 745 | Ethnology | 1 | 0 | 2188 | 2931 |
| 745 | Group Identity | 1 | 0 | 205 | 457 |
| 745 | educational innovations | 1 | 0 | 952 | 1591 |
| 745 | Islamic civilization | 1 | 0 | 216 | 237 |
| 745 | environmental issues | 1 | 0 | 770 | 1445 |