| 1 | Physics | 312 | 16.4K | 1253 | 1498 |
| 2 | Science | 185 | 13.8K | 1681 | 1629 |
| 3 | Nuclear Physics | 223 | 11.9K | 821 | 557 |
| 4 | Biology | 138 | 11.4K | 1921 | 1787 |
| 5 | Biochemistry | 134 | 10.2K | 2116 | 1291 |
| 6 | Botany | 177 | 8.9K | 499 | 453 |
| 7 | Natural history | 99 | 8.0K | 622 | 1370 |
| 8 | Pollution | 83 | 6.6K | 1119 | 786 |
| 9 | Psychology | 92 | 6.1K | 905 | 536 |
| 10 | Ecology | 75 | 4.3K | 1540 | 1384 |
| 11 | Environment | 24 | 3.8K | 2259 | 1249 |
| 12 | Plant cells | 32 | 3.6K | 387 | 365 |
| 13 | Plant physiology | 52 | 3.5K | 459 | 364 |
| 14 | environmental pollution | 82 | 3.4K | 791 | 798 |
| 15 | Geophysics | 76 | 3.1K | 929 | 808 |
| 16 | Sociology | 119 | 3.1K | 313 | 350 |
| 17 | Biodiversity conservation | 7 | 3.0K | 1348 | 504 |
| 18 | Climate change | 6 | 3.0K | 881 | 408 |
| 18 | Eutrophication | 6 | 3.0K | 852 | 407 |
| 20 | management | 51 | 2.7K | 789 | 660 |
| 21 | Linguistics | 18 | 2.7K | 624 | 110 |
| 22 | Medicine | 52 | 2.6K | 3898 | 3267 |
| 23 | Quantum Gravity | 44 | 2.6K | 839 | 594 |
| 24 | organization | 17 | 2.5K | 263 | 154 |
| 25 | plant communities | 25 | 2.4K | 329 | 198 |
| 26 | Meteorology | 25 | 2.4K | 931 | 598 |
| 27 | Polymers | 137 | 2.4K | 762 | 1040 |
| 28 | Environmental Health | 39 | 2.3K | 1767 | 1343 |
| 29 | polymerization | 133 | 2.3K | 610 | 854 |
| 30 | Applied Linguistics | 13 | 2.1K | 201 | 16 |
| 31 | Electronics | 37 | 2.1K | 1187 | 504 |
| 32 | Psychometrics | 4 | 2.1K | 423 | 71 |
| 33 | Psychophysiology | 36 | 2.1K | 1034 | 826 |
| 34 | soil microbiology | 15 | 1.9K | 678 | 394 |
| 35 | Molecular Biology | 33 | 1.9K | 3735 | 3242 |
| 36 | Soil biology | 22 | 1.9K | 329 | 252 |
| 37 | Geology | 44 | 1.8K | 1022 | 768 |
| 38 | Statistics | 49 | 1.8K | 703 | 461 |
| 39 | Mathematics | 87 | 1.8K | 1535 | 1061 |
| 40 | Electrical Engineering | 20 | 1.8K | 1672 | 256 |
| 41 | Public Health | 39 | 1.8K | 1956 | 1577 |
| 42 | Perception | 12 | 1.7K | 1248 | 427 |
| 43 | Communication | 15 | 1.7K | 940 | 270 |
| 44 | Social Psychology | 33 | 1.7K | 625 | 525 |
| 45 | Educational Psychology | 40 | 1.6K | 314 | 267 |
| 46 | United Kingdom | 100 | 1.6K | 140 | 438 |
| 47 | Economics | 153 | 1.5K | 545 | 969 |
| 48 | Social Sciences | 88 | 1.5K | 473 | 472 |
| 49 | Atmospheric Physics | 48 | 1.4K | 444 | 544 |
| 50 | Discourse Analysis | 5 | 1.4K | 290 | 16 |
| 51 | Chemistry | 59 | 1.4K | 3401 | 4199 |
| 52 | Hydrology | 24 | 1.3K | 987 | 651 |
| 53 | Statistical physics | 28 | 1.2K | 1629 | 1154 |
| 54 | Developing countries | 27 | 1.2K | 688 | 450 |
| 55 | Health Policy | 5 | 1.2K | 2379 | 537 |
| 55 | world | 12 | 1.2K | 326 | 181 |
| 57 | Neuropsychology | 21 | 1.2K | 1033 | 695 |
| 58 | Health Services Research | 3 | 1.2K | 2302 | 362 |
| 59 | Water | 23 | 1.2K | 984 | 1003 |
| 60 | Neurology | 32 | 1.1K | 2417 | 2562 |
| 61 | Economic History | 58 | 1.1K | 747 | 670 |
| 62 | Psychiatry | 24 | 1.1K | 2118 | 1838 |
| 63 | Political Science | 52 | 1.0K | 381 | 353 |
| 64 | Astronomy | 24 | 1.0K | 1470 | 1356 |
| 65 | plant molecular biology | 7 | 1.0K | 1146 | 774 |
| 66 | educational planning | 37 | 989 | 20 | 43 |
| 67 | Economic Development | 21 | 986 | 580 | 521 |
| 68 | International Relations | 79 | 982 | 106 | 171 |
| 69 | Geomorphology | 10 | 957 | 862 | 438 |
| 70 | finance | 65 | 953 | 353 | 560 |
| 71 | Education | 90 | 948 | 598 | 815 |
| 72 | Microbiology | 26 | 947 | 3298 | 3463 |
| 73 | Regional Planning | 32 | 946 | 418 | 356 |
| 74 | Research | 34 | 913 | 4007 | 4263 |
| 75 | Volcanoes | 10 | 885 | 130 | 59 |
| 76 | Medical Anthropology | 15 | 878 | 556 | 493 |
| 77 | Agriculture | 8 | 873 | 1710 | 666 |
| 78 | Plants | 10 | 865 | 1374 | 928 |
| 79 | Geochemistry | 11 | 857 | 1347 | 892 |
| 80 | Environmental Engineering | 21 | 850 | 1665 | 1562 |
| 81 | Energy Policy | 5 | 828 | 2409 | 1135 |
| 81 | energy resources | 5 | 828 | 1184 | 632 |
| 83 | Mental Disorders | 16 | 787 | 1731 | 1534 |
| 84 | Technology | 24 | 783 | 1732 | 1351 |
| 85 | Meteorites | 8 | 772 | 735 | 560 |
| 86 | Geography | 33 | 765 | 703 | 741 |
| 87 | Development | 13 | 758 | 337 | 270 |
| 88 | Cognition | 19 | 746 | 745 | 696 |
| 89 | Economic Assistance | 10 | 740 | 349 | 245 |
| 90 | Water pollution | 21 | 737 | 1158 | 1282 |
| 91 | Cell Biology | 10 | 682 | 3181 | 2911 |
| 92 | Marine Biology | 18 | 680 | 1307 | 1147 |
| 93 | Humanities | 5 | 673 | 1659 | 128 |
| 94 | Biophysics | 23 | 663 | 3118 | 3017 |
| 95 | Plant diseases | 19 | 656 | 908 | 714 |
| 96 | Engineering | 14 | 655 | 2558 | 1251 |
| 97 | Behavior | 14 | 649 | 1842 | 1789 |
| 98 | Child psychology | 13 | 613 | 822 | 789 |
| 99 | psychotherapy | 11 | 612 | 812 | 592 |
| 100 | Freezing | 28 | 611 | 66 | 41 |
| 101 | Microbial Ecology | 7 | 609 | 1907 | 1473 |
| 102 | Sedimentology | 3 | 605 | 732 | 182 |
| 103 | Atmospheric Chemistry | 12 | 597 | 593 | 607 |
| 104 | Public Administration | 12 | 592 | 742 | 358 |
| 105 | Psycholinguistics | 9 | 577 | 606 | 414 |
| 106 | Oceanography | 17 | 570 | 970 | 933 |
| 107 | History of Medicine | 13 | 563 | 208 | 20 |
| 108 | Clinical Psychology | 22 | 558 | 578 | 863 |
| 109 | Neurophysiology | 9 | 544 | 2252 | 1904 |
| 110 | water supply | 6 | 534 | 750 | 471 |
| 111 | Business | 41 | 518 | 467 | 1098 |
| 112 | Quality Control | 6 | 515 | 1475 | 587 |
| 113 | Teaching | 7 | 508 | 1292 | 501 |
| 114 | Experimental Design | 5 | 507 | 221 | 122 |
| 115 | sanitation | 5 | 496 | 1492 | 1212 |
| 116 | Planets | 8 | 489 | 1269 | 1103 |
| 117 | Agricultural Ecology | 5 | 486 | 1003 | 653 |
| 118 | Cancer | 2 | 478 | 5303 | 2575 |
| 119 | Palliative Care | 7 | 477 | 711 | 268 |
| 120 | Information Science | 9 | 475 | 1674 | 1100 |
| 121 | Food Policy | 2 | 473 | 525 | 147 |
| 121 | agricultural policy | 2 | 473 | 370 | 115 |
| 121 | Food | 2 | 473 | 4497 | 1668 |
| 124 | Memory | 10 | 467 | 1364 | 1093 |
| 125 | Intellectual disability | 15 | 459 | 362 | 332 |
| 126 | Forecasting | 8 | 454 | 267 | 167 |
| 127 | Human Geography | 16 | 453 | 465 | 374 |
| 128 | Nervous system | 20 | 431 | 1161 | 1804 |
| 129 | freshwater biology | 9 | 429 | 572 | 400 |
| 130 | Materials | 10 | 428 | 4396 | 3607 |
| 131 | Mental illness | 4 | 421 | 2363 | 1501 |
| 132 | Astrophysics | 20 | 419 | 1864 | 2057 |
| 133 | Operations Research | 18 | 418 | 1017 | 1043 |
| 134 | human behavior | 10 | 416 | 1582 | 1835 |
| 135 | Plant Ecology | 8 | 415 | 1291 | 1142 |
| 136 | Social policy | 16 | 413 | 369 | 273 |
| 137 | Paleoclimatology | 7 | 409 | 831 | 646 |
| 138 | Nanotechnology | 10 | 403 | 3575 | 3386 |
| 139 | Biotechnology | 8 | 402 | 5140 | 4439 |
| 140 | Optical materials | 4 | 398 | 2628 | 1719 |
| 141 | Mathematical Physics | 23 | 389 | 1339 | 1297 |
| 142 | Earth Sciences | 15 | 387 | 1830 | 1838 |
| 143 | Tourism | 2 | 384 | 2162 | 889 |
| 144 | Australia | 27 | 383 | 537 | 696 |
| 145 | Cognitive Therapy | 5 | 377 | 529 | 266 |
| 146 | Entomology | 9 | 369 | 1753 | 1026 |
| 147 | crime | 10 | 358 | 377 | 244 |
| 148 | amino acids | 3 | 356 | 709 | 226 |
| 149 | Zoology | 10 | 354 | 1847 | 1278 |
| 149 | computer networks | 12 | 354 | 1344 | 1109 |
| 151 | Language and Education | 2 | 352 | 212 | 9 |
| 152 | Environmental monitoring | 10 | 351 | 2697 | 2823 |
| 153 | Metals | 2 | 341 | 3146 | 1271 |
| 154 | Optics | 14 | 340 | 3040 | 2292 |
| 155 | Brain | 6 | 335 | 2415 | 1974 |
| 156 | personality | 3 | 334 | 1599 | 968 |
| 157 | Social work | 21 | 321 | 505 | 532 |
| 158 | Cytology | 13 | 318 | 2976 | 3841 |
| 159 | Regional Development | 2 | 314 | 372 | 114 |
| 159 | Development planning | 2 | 314 | 324 | 103 |
| 159 | Economic planning | 2 | 314 | 709 | 172 |
| 162 | Radiation effects | 4 | 311 | 589 | 353 |
| 163 | industrial relations | 33 | 304 | 168 | 312 |
| 164 | Europe | 95 | 303 | 442 | 1744 |
| 165 | Transportation | 4 | 301 | 1678 | 944 |
| 166 | Paleontology | 7 | 300 | 1044 | 679 |
| 167 | Learning | 9 | 299 | 864 | 820 |
| 168 | Archaeology | 6 | 297 | 1149 | 642 |
| 169 | Land Use Planning | 17 | 290 | 76 | 213 |
| 169 | Wildlife conservation | 5 | 290 | 1121 | 990 |
| 171 | History | 91 | 289 | 125 | 125 |
| 172 | Child Development | 5 | 287 | 1914 | 1402 |
| 173 | Cognitive Behavioral Therapy | 4 | 285 | 207 | 97 |
| 173 | behavior therapy | 4 | 285 | 855 | 532 |
| 175 | population geography | 1 | 283 | 823 | 130 |
| 176 | Mineral resources | 4 | 275 | 491 | 281 |
| 177 | Systems Engineering | 4 | 272 | 2225 | 960 |
| 178 | Animal Behavior | 7 | 270 | 1541 | 1622 |
| 179 | Public Policy | 8 | 267 | 1249 | 1120 |
| 180 | economic policy | 21 | 266 | 974 | 1041 |
| 181 | Feminist theory | 3 | 260 | 196 | 51 |
| 182 | Economic Geography | 5 | 258 | 258 | 142 |
| 183 | Computational Complexity | 1 | 256 | 2065 | 294 |
| 184 | Social welfare | 6 | 253 | 408 | 229 |
| 185 | Land use | 1 | 252 | 2175 | 729 |
| 186 | Genomics | 6 | 250 | 3143 | 2845 |
| 187 | city planning | 11 | 248 | 885 | 878 |
| 188 | Learning disabilities | 10 | 247 | 441 | 428 |
| 189 | Photonics | 4 | 244 | 1767 | 1409 |
| 190 | Computer Science | 3 | 243 | 2708 | 913 |
| 191 | Criminology | 9 | 242 | 587 | 454 |
| 191 | Juvenile delinquency | 9 | 242 | 158 | 133 |
| 191 | Psychopharmacology | 7 | 242 | 1405 | 1479 |
| 191 | deviant behavior | 9 | 242 | 140 | 95 |
| 195 | Cerebral cortex | 6 | 240 | 815 | 882 |
| 196 | System analysis | 13 | 235 | 1330 | 1460 |
| 196 | Small Business | 4 | 235 | 721 | 733 |
| 198 | language | 5 | 233 | 676 | 496 |
| 199 | Criminal psychology | 5 | 226 | 652 | 454 |
| 200 | Neurochemistry | 2 | 223 | 3334 | 2151 |
| 201 | Nuclear Energy | 3 | 222 | 1391 | 541 |
| 201 | Biogeochemistry | 5 | 222 | 1042 | 1093 |
| 203 | wind erosion | 1 | 220 | 264 | 54 |
| 204 | Environmental pollutants | 16 | 218 | 1039 | 1891 |
| 205 | movement | 1 | 214 | 711 | 192 |
| 206 | peace | 12 | 213 | 199 | 314 |
| 207 | economic development projects | 7 | 212 | 76 | 70 |
| 208 | Feminism | 6 | 209 | 405 | 214 |
| 209 | forest policy | 1 | 201 | 808 | 202 |
| 210 | ecosystem | 7 | 200 | 1027 | 1333 |
| 211 | Information Systems | 5 | 199 | 1313 | 1011 |
| 212 | Medical Technology | 2 | 198 | 2990 | 1372 |
| 212 | Medical innovations | 2 | 198 | 1678 | 1652 |
| 212 | Jurisprudence | 11 | 198 | 525 | 522 |
| 215 | Solid State Physics | 22 | 192 | 1988 | 2751 |
| 216 | Fisheries | 6 | 191 | 1456 | 1289 |
| 217 | Speech Disorders | 4 | 188 | 1065 | 767 |
| 218 | Pediatrics | 2 | 187 | 4029 | 2705 |
| 218 | Social History | 13 | 187 | 198 | 135 |
| 220 | Emotions | 3 | 185 | 663 | 573 |
| 221 | Health | 4 | 183 | 2640 | 1947 |
| 222 | Soil Science | 7 | 182 | 1447 | 1602 |
| 222 | Political Sociology | 3 | 182 | 470 | 263 |
| 222 | Watershed management | 1 | 182 | 572 | 51 |
| 225 | Software Engineering | 15 | 181 | 409 | 544 |
| 225 | Developmental Psychology | 6 | 181 | 844 | 956 |
| 227 | Analytical Chemistry | 8 | 178 | 3639 | 3883 |
| 227 | motivation | 2 | 178 | 464 | 255 |
| 227 | Emotion | 2 | 178 | 284 | 199 |
| 230 | Social problems | 2 | 176 | 859 | 486 |
| 231 | Condensed Matter | 16 | 175 | 2112 | 2575 |
| 232 | Environmental Psychology | 1 | 170 | 758 | 377 |
| 233 | Environmental Policy | 9 | 169 | 2243 | 3473 |
| 233 | Comparative Physiology | 4 | 169 | 854 | 695 |
| 233 | economic forecasting | 3 | 169 | 360 | 265 |
| 236 | Welfare Economics | 3 | 168 | 503 | 362 |
| 236 | Socialism | 3 | 168 | 221 | 77 |
| 238 | environmental protection | 12 | 166 | 2088 | 3416 |
| 238 | Culture | 4 | 166 | 1065 | 461 |
| 240 | Cosmology | 4 | 165 | 1474 | 847 |
| 241 | Mycology | 17 | 164 | 754 | 1499 |
| 241 | Fungi | 17 | 164 | 427 | 1088 |
| 243 | Bioengineering | 5 | 163 | 4340 | 4679 |
| 243 | Human Rights | 4 | 163 | 549 | 279 |
| 245 | Information Technology | 6 | 162 | 2085 | 1601 |
| 246 | Entrepreneurship | 4 | 160 | 974 | 962 |
| 246 | Transport | 4 | 160 | 639 | 583 |
| 246 | Sea | 4 | 160 | 571 | 488 |
| 246 | Fishery resources | 4 | 160 | 658 | 537 |
| 250 | Industrial Sociology | 9 | 158 | 102 | 141 |
| 251 | social science | 2 | 154 | 239 | 165 |
| 252 | Graph Theory | 7 | 151 | 545 | 325 |
| 252 | Liver diseases | 1 | 151 | 2781 | 1984 |
| 254 | Religion | 40 | 150 | 176 | 253 |
| 254 | Plastics | 11 | 150 | 989 | 1247 |
| 256 | Neurolinguistics | 1 | 148 | 869 | 469 |
| 256 | Speech | 1 | 148 | 1720 | 790 |
| 258 | Research Design | 5 | 146 | 1195 | 1216 |
| 259 | polar regions | 4 | 145 | 713 | 542 |
| 260 | Theology | 38 | 143 | 134 | 78 |
| 260 | Organizational Sociology | 7 | 143 | 184 | 247 |
| 260 | Nanophotonics | 1 | 143 | 663 | 310 |
| 260 | Nonlinear Dynamics | 5 | 143 | 2038 | 1824 |
| 260 | Investments | 3 | 143 | 678 | 274 |
| 265 | Numerical Analysis | 5 | 142 | 2181 | 1561 |
| 266 | Functional Analysis | 4 | 139 | 1272 | 854 |
| 266 | Approximation Theory | 12 | 139 | 171 | 218 |
| 268 | Political Participation | 4 | 137 | 286 | 223 |
| 269 | Nuclear Chemistry | 5 | 136 | 1064 | 712 |
| 269 | Groundwater | 2 | 136 | 1043 | 561 |
| 271 | pollutants | 5 | 135 | 1796 | 2120 |
| 272 | Biogeography | 2 | 134 | 1373 | 1330 |
| 273 | Pediatric Neurology | 1 | 132 | 2079 | 1769 |
| 273 | Forensic Psychology | 3 | 132 | 469 | 281 |
| 273 | Industrial Microbiology | 2 | 132 | 2841 | 2305 |
| 273 | Production Management | 5 | 132 | 926 | 1280 |
| 273 | Dementia | 4 | 132 | 1613 | 1124 |
| 273 | nanoscience | 4 | 132 | 3033 | 3131 |
| 279 | Forest Ecology | 5 | 131 | 968 | 1133 |
| 279 | Written communication | 2 | 131 | 132 | 73 |
| 281 | Philosophy | 104 | 130 | 209 | 677 |
| 282 | Rural Development | 8 | 128 | 299 | 430 |
| 283 | Biogeochemical cycles | 4 | 127 | 445 | 730 |
| 284 | Child | 3 | 126 | 3322 | 2423 |
| 284 | health services | 4 | 126 | 1190 | 965 |
| 286 | Mental Health | 5 | 125 | 1590 | 1465 |
| 286 | marketing | 12 | 125 | 1023 | 1712 |
| 288 | Adult Education | 5 | 124 | 457 | 284 |
| 289 | Probability | 1 | 123 | 1264 | 572 |
| 289 | Risk Management | 1 | 123 | 1698 | 654 |
| 289 | Financial management | 1 | 123 | 1111 | 604 |
| 289 | Risk | 1 | 123 | 1230 | 590 |
| 293 | disarmament | 15 | 120 | 32 | 108 |
| 293 | Adolescent | 3 | 120 | 2845 | 2060 |
| 293 | Asia | 5 | 120 | 2740 | 1989 |
| 296 | Atmospheric Science | 4 | 119 | 204 | 190 |
| 296 | Genetic engineering | 1 | 119 | 4188 | 2680 |
| 296 | Biochemical Engineering | 1 | 119 | 5597 | 4423 |
| 296 | Environmentalism | 3 | 119 | 146 | 163 |
| 296 | atmosphere | 4 | 119 | 817 | 852 |
| 301 | Oncology | 3 | 118 | 2921 | 3304 |
| 301 | Process Control | 5 | 118 | 695 | 1142 |
| 303 | Fluid Mechanics | 2 | 117 | 2387 | 1469 |
| 303 | Geomagnetism | 2 | 117 | 966 | 624 |
| 303 | Schizophrenia | 4 | 117 | 1194 | 1341 |
| 303 | Molecular recognition | 4 | 117 | 162 | 177 |
| 303 | Soil fertility | 3 | 117 | 396 | 468 |
| 303 | motor skills | 4 | 117 | 155 | 181 |
| 303 | Soil ecology | 3 | 117 | 884 | 940 |
| 310 | Geriatrics | 1 | 115 | 5787 | 3038 |
| 310 | Cognitive neuroscience | 1 | 115 | 1753 | 1182 |
| 312 | Continuing Education | 3 | 113 | 473 | 205 |
| 313 | Scandinavia | 2 | 112 | 940 | 516 |
| 314 | Organometallic compounds | 4 | 109 | 1254 | 1166 |
| 315 | Mineralogy | 3 | 107 | 1602 | 1281 |
| 315 | Petrology | 3 | 107 | 1031 | 987 |
| 317 | sedimentary basins | 1 | 106 | 416 | 238 |
| 317 | Portfolio Management | 2 | 106 | 481 | 207 |
| 319 | Structural Engineering | 4 | 105 | 1638 | 1411 |
| 319 | health behavior | 1 | 105 | 2099 | 1110 |
| 319 | ethnicity | 5 | 105 | 586 | 449 |
| 322 | Pharmacology | 2 | 103 | 7617 | 6138 |
| 323 | Histology | 3 | 102 | 2392 | 2348 |
| 324 | Nanostructured Materials | 4 | 101 | 3217 | 3390 |
| 324 | Ethology | 3 | 101 | 1826 | 2119 |
| 324 | Elections | 6 | 101 | 224 | 243 |
| 327 | Health Information Management | 3 | 99 | 326 | 687 |
| 328 | Risk assessment | 1 | 98 | 1431 | 476 |
| 328 | Health risk communication | 1 | 98 | 175 | 60 |
| 328 | risk factors | 1 | 98 | 1554 | 904 |
| 328 | Health Risk Assessment | 1 | 98 | 1129 | 367 |
| 332 | herbicides | 3 | 97 | 333 | 285 |
| 333 | Toxicology | 1 | 96 | 8176 | 5744 |
| 333 | Control Theory | 5 | 96 | 1526 | 1363 |
| 335 | Systems Theory | 4 | 94 | 578 | 318 |
| 335 | Solar System | 4 | 94 | 872 | 958 |
| 337 | Data Mining | 2 | 93 | 2629 | 2057 |
| 337 | local government | 4 | 93 | 322 | 325 |
| 339 | Health Education | 4 | 92 | 2133 | 2129 |
| 339 | Health promotion | 4 | 92 | 1690 | 1834 |
| 339 | Sites | 2 | 92 | 807 | 797 |
| 339 | Biodiversity | 2 | 92 | 3296 | 2692 |
| 343 | Mechanical Engineering | 10 | 91 | 1683 | 1985 |
| 343 | Animal ecology | 2 | 91 | 1689 | 1330 |
| 345 | Mass Spectrometry | 2 | 88 | 1824 | 1444 |
| 346 | Econometrics | 6 | 85 | 1108 | 1255 |
| 346 | commerce | 10 | 85 | 906 | 1577 |
| 348 | election law | 3 | 84 | 261 | 227 |
| 348 | Voting | 3 | 84 | 238 | 221 |
| 350 | Physiology | 10 | 83 | 3235 | 5338 |
| 350 | particles | 2 | 83 | 1465 | 1054 |
| 350 | international cooperation | 6 | 83 | 410 | 763 |
| 353 | Environmental Geology | 3 | 82 | 1861 | 1865 |
| 353 | energy conservation | 1 | 82 | 3589 | 2754 |
| 353 | Biocompatible Materials | 3 | 82 | 4373 | 5064 |
| 353 | Bioorganic chemistry | 4 | 82 | 2980 | 3494 |
| 357 | Cybernetics | 5 | 81 | 1172 | 1479 |
| 357 | Mental Health Services | 3 | 81 | 1668 | 1520 |
| 357 | Peasants | 3 | 81 | 87 | 110 |
| 360 | Photochemistry | 2 | 80 | 2633 | 2176 |
| 360 | Substance Abuse | 4 | 80 | 1598 | 1756 |
| 360 | Light | 2 | 80 | 1512 | 1615 |
| 363 | Dermatology | 1 | 79 | 3376 | 2124 |
| 364 | Planetary Science | 2 | 78 | 803 | 544 |
| 364 | hospice care | 2 | 78 | 946 | 593 |
| 364 | Moon | 2 | 78 | 288 | 144 |
| 364 | Communication in medicine | 3 | 78 | 617 | 604 |
| 364 | Autism | 1 | 78 | 1454 | 1095 |
| 369 | Proteomics | 1 | 77 | 2327 | 1819 |
| 369 | Artificial Intelligence | 3 | 77 | 4405 | 3894 |
| 371 | Alzheimer's disease | 3 | 76 | 1860 | 1513 |
| 371 | Membranes | 6 | 76 | 1582 | 2596 |
| 373 | Ergonomics | 5 | 75 | 992 | 1119 |
| 373 | glycoproteins | 4 | 75 | 472 | 769 |
| 373 | Glycoconjugates | 4 | 75 | 472 | 769 |
| 373 | Oligosaccharides | 4 | 75 | 218 | 363 |
| 373 | glycolipids | 4 | 75 | 472 | 769 |
| 378 | Catalysis | 2 | 74 | 4295 | 4116 |
| 378 | Educational Technology | 10 | 74 | 840 | 1610 |
| 378 | Magnetic Materials | 2 | 74 | 1948 | 1678 |
| 378 | Evolution | 4 | 74 | 2069 | 2718 |
| 382 | Language Disorders | 4 | 73 | 885 | 958 |
| 382 | children | 2 | 73 | 812 | 685 |
| 384 | Waste management | 3 | 72 | 1678 | 1565 |
| 384 | Biometrics | 2 | 72 | 1641 | 1321 |
| 386 | Human-Computer Interaction | 6 | 70 | 1194 | 1775 |
| 387 | Nationalism | 4 | 69 | 281 | 224 |
| 388 | Information Theory | 1 | 68 | 2202 | 1320 |
| 388 | Intelligence | 1 | 68 | 497 | 356 |
| 390 | adolescence | 2 | 67 | 1314 | 1223 |
| 391 | psychopathology | 8 | 66 | 200 | 516 |
| 392 | Law | 24 | 65 | 499 | 806 |
| 392 | Technological Innovations | 1 | 65 | 2124 | 1322 |
| 394 | actuators | 1 | 64 | 3718 | 3092 |
| 394 | transducers | 1 | 64 | 3718 | 3092 |
| 396 | Climatology | 2 | 63 | 2506 | 2458 |
| 396 | Radio wave propagation | 2 | 63 | 1179 | 788 |
| 396 | Human Resources | 1 | 63 | 864 | 765 |
| 399 | International security | 5 | 62 | 169 | 393 |
| 399 | Futures | 1 | 62 | 660 | 370 |
| 399 | conflict management | 5 | 62 | 199 | 392 |
| 402 | Adolescent Psychology | 1 | 61 | 1737 | 1179 |
| 402 | Granular materials | 1 | 61 | 1207 | 859 |
| 402 | biological evolution | 3 | 61 | 2606 | 3476 |
| 402 | Scotland | 5 | 61 | 87 | 86 |
| 406 | Visual Perception | 7 | 60 | 1535 | 2722 |
| 406 | human development | 4 | 60 | 765 | 1162 |
| 408 | Pathology | 4 | 59 | 2685 | 3773 |
| 408 | Ethics | 6 | 59 | 764 | 1055 |
| 410 | Quantum Chemistry | 3 | 58 | 1087 | 877 |
| 410 | Chemical Oceanography | 2 | 58 | 429 | 603 |
| 410 | Environmental Management | 2 | 58 | 4065 | 4578 |
| 410 | behavior modification | 1 | 58 | 722 | 681 |
| 410 | child behavior | 1 | 58 | 790 | 634 |
| 410 | Suicide | 2 | 58 | 849 | 778 |
| 410 | Plasma devices | 1 | 58 | 598 | 420 |
| 417 | International Law | 2 | 57 | 563 | 152 |
| 417 | Diabetes mellitus | 2 | 57 | 3290 | 3692 |
| 417 | consumer behavior | 1 | 57 | 1070 | 811 |
| 417 | Soil | 3 | 57 | 82 | 154 |
| 417 | Diabetes | 3 | 57 | 2885 | 3740 |
| 422 | Historical Geography | 32 | 55 | 27 | 107 |
| 422 | Semiconductors | 5 | 55 | 1934 | 2357 |
| 422 | innovation | 4 | 55 | 580 | 1045 |
| 422 | research and development | 4 | 55 | 278 | 524 |
| 422 | Radio | 3 | 55 | 1016 | 802 |
| 422 | atmospheric models | 2 | 55 | 970 | 1138 |
| 422 | Microwaves | 10 | 55 | 698 | 954 |
| 429 | Microelectronics | 2 | 54 | 2516 | 2587 |
| 429 | United States | 7 | 54 | 4714 | 6914 |
| 429 | miniaturization | 2 | 54 | 2656 | 3025 |
| 432 | Phonetics | 1 | 53 | 646 | 428 |
| 432 | civil rights | 1 | 53 | 854 | 372 |
| 432 | Citizenship | 1 | 53 | 327 | 185 |
| 432 | Language teaching | 2 | 53 | 90 | 85 |
| 432 | second language | 2 | 53 | 90 | 85 |
| 432 | Southeast Asia | 2 | 53 | 640 | 338 |
| 438 | Thermodynamics | 6 | 52 | 925 | 1184 |
| 438 | Earthquake Engineering | 1 | 52 | 2081 | 1727 |
| 438 | Thermochemistry | 6 | 52 | 390 | 669 |
| 438 | Radioisotopes | 2 | 52 | 1923 | 1446 |
| 438 | free radicals | 1 | 52 | 2758 | 2615 |
| 438 | Combinatorial analysis | 5 | 52 | 984 | 878 |
| 444 | Agricultural Economics | 1 | 51 | 193 | 117 |
| 444 | Ultrasonics | 1 | 51 | 2097 | 1892 |
| 444 | Sound | 1 | 51 | 1563 | 716 |
| 447 | medical education | 3 | 50 | 2514 | 2695 |
| 448 | Development Economics | 1 | 49 | 991 | 688 |
| 448 | Coastal zone management | 1 | 49 | 1398 | 1086 |
| 448 | poverty | 1 | 49 | 1024 | 669 |
| 448 | Eating Disorders | 1 | 49 | 1688 | 1398 |
| 448 | Feeding and Eating Disorders | 1 | 49 | 1623 | 1354 |
| 448 | Marine resources | 4 | 49 | 678 | 1114 |
| 448 | thinking | 7 | 49 | 117 | 396 |
| 448 | health planning | 2 | 49 | 3285 | 2993 |
| 448 | women | 4 | 49 | 816 | 836 |
| 448 | Criminal investigation | 2 | 49 | 303 | 249 |
| 458 | Demography | 2 | 48 | 1065 | 1113 |
| 458 | Multicultural Education | 1 | 48 | 775 | 415 |
| 460 | Gender Studies | 2 | 47 | 712 | 699 |
| 460 | Action Research | 1 | 47 | 519 | 260 |
| 460 | death | 2 | 47 | 460 | 348 |
| 463 | Physical organic chemistry | 3 | 46 | 1641 | 1951 |
| 463 | Composite Materials | 4 | 46 | 2758 | 3923 |
| 465 | Physical Geography | 1 | 45 | 1199 | 767 |
| 465 | Birds | 4 | 45 | 1291 | 1434 |
| 467 | Speech-Language Pathology | 1 | 44 | 627 | 439 |
| 467 | structural stability | 1 | 44 | 912 | 697 |
| 467 | automatic speech recognition | 1 | 44 | 364 | 284 |
| 470 | microwave antennas | 3 | 43 | 496 | 510 |
| 470 | Host-parasite interactions | 4 | 43 | 1393 | 2826 |
| 470 | cultural pluralism | 2 | 43 | 550 | 498 |
| 470 | Attention | 5 | 43 | 1917 | 3227 |
| 470 | Women's health | 2 | 43 | 2158 | 2241 |
| 475 | Higher Education | 8 | 42 | 317 | 756 |
| 475 | Radiopharmaceuticals | 1 | 42 | 876 | 381 |
| 475 | Reproductive health | 2 | 42 | 1260 | 1397 |
| 475 | Social Issues | 1 | 42 | 510 | 468 |
| 479 | Forest Management | 3 | 41 | 1216 | 1778 |
| 479 | Liposomes | 3 | 41 | 641 | 970 |
| 479 | radioactive waste | 2 | 41 | 1137 | 1954 |
| 479 | Invertebrates | 1 | 41 | 1327 | 1078 |
| 479 | Lipid bilayers | 3 | 41 | 519 | 764 |
| 479 | industrial waste | 2 | 41 | 1193 | 1959 |
| 479 | Hazardous waste | 2 | 41 | 1347 | 2063 |
| 479 | slavery | 1 | 41 | 184 | 81 |
| 487 | speech therapy | 3 | 40 | 458 | 603 |
| 487 | nuclear astrophysics | 1 | 40 | 892 | 762 |
| 487 | War and Society | 3 | 40 | 223 | 443 |
| 487 | warfare | 3 | 40 | 319 | 604 |
| 487 | Communication Disorders | 3 | 40 | 365 | 476 |
| 492 | Epidemiology | 2 | 39 | 5939 | 6516 |
| 492 | Language Acquisition | 3 | 39 | 456 | 620 |
| 492 | Pharmaceutical Chemistry | 2 | 39 | 5482 | 6037 |
| 492 | Renewable Energy Sources | 3 | 39 | 3058 | 4802 |
| 492 | Bilingualism | 2 | 39 | 276 | 377 |
| 492 | Broadcasting | 4 | 39 | 149 | 273 |
| 498 | Sociolinguistics | 5 | 38 | 343 | 584 |
| 498 | health services accessibility | 1 | 38 | 2114 | 1627 |
| 498 | Knowledge | 3 | 38 | 500 | 485 |
| 498 | race relations | 11 | 38 | 256 | 762 |
| 498 | Human biology | 1 | 38 | 1385 | 1055 |
| 503 | Critical Discourse Analysis | 1 | 37 | 117 | 90 |
| 503 | Venture Capital | 1 | 37 | 540 | 668 |
| 503 | Child welfare | 2 | 37 | 1714 | 1806 |
| 503 | Environmental Geochemistry | 1 | 37 | 1235 | 1022 |
| 503 | Parasitology | 2 | 37 | 3424 | 3693 |
| 503 | Hydraulics | 1 | 37 | 8 | 17 |
| 503 | Parasitic Diseases | 2 | 37 | 3135 | 3681 |
| 503 | pressure | 1 | 37 | 8 | 17 |
| 503 | Fluid flow | 1 | 37 | 8 | 17 |
| 503 | Chemical properties | 1 | 37 | 8 | 17 |
| 503 | Vision | 3 | 37 | 797 | 1293 |
| 503 | Parasites | 2 | 37 | 2391 | 2642 |
| 503 | Minerals | 1 | 37 | 1633 | 1389 |
| 516 | Logic | 2 | 36 | 640 | 469 |
| 516 | Surface Chemistry | 3 | 36 | 4281 | 5483 |
| 516 | Organic Chemistry | 2 | 36 | 4224 | 4521 |
| 516 | Multivariate Analysis | 1 | 36 | 931 | 739 |
| 520 | Genetics | 4 | 35 | 4602 | 6914 |
| 520 | Fluid Dynamics | 1 | 35 | 2163 | 1781 |
| 520 | civilization | 9 | 35 | 871 | 652 |
| 520 | Reading | 3 | 35 | 596 | 854 |
| 520 | Sedimentary rocks | 1 | 35 | 1065 | 1027 |
| 520 | Microscopy | 2 | 35 | 2597 | 2439 |
| 526 | Environmental Chemistry | 3 | 34 | 2681 | 3972 |
| 526 | curriculum | 1 | 34 | 170 | 104 |
| 526 | curriculum planning | 1 | 34 | 352 | 235 |
| 526 | mortality | 1 | 34 | 193 | 136 |
| 526 | Bereavement | 1 | 34 | 440 | 272 |
| 531 | Endocrinology | 2 | 33 | 4594 | 5549 |
| 531 | Biomedical Engineering | 1 | 33 | 8825 | 7946 |
| 531 | Early Childhood Education | 2 | 33 | 782 | 795 |
| 531 | Writing | 1 | 33 | 534 | 522 |
| 535 | corrections | 6 | 32 | 108 | 251 |
| 535 | Prisons | 6 | 32 | 212 | 425 |
| 535 | Literacy | 2 | 32 | 398 | 409 |
| 538 | Social Ethics | 3 | 31 | 242 | 231 |
| 538 | soil management | 1 | 31 | 1109 | 1246 |
| 538 | Bacteriology | 2 | 31 | 2837 | 3969 |
| 538 | Organometallic chemistry | 2 | 31 | 2683 | 2761 |
| 538 | Electrochemistry | 5 | 31 | 3591 | 5027 |
| 538 | Ornithology | 3 | 31 | 1190 | 1420 |
| 538 | Matroids | 3 | 31 | 258 | 343 |
| 545 | Telecommunication Systems | 4 | 30 | 1596 | 2183 |
| 545 | Contraception | 1 | 30 | 1315 | 1327 |
| 545 | Public opinion | 2 | 30 | 609 | 864 |
| 545 | Geobiology | 3 | 30 | 567 | 980 |
| 545 | space environment | 3 | 30 | 294 | 457 |
| 545 | Wind power | 2 | 30 | 475 | 546 |
| 545 | Birth control | 1 | 30 | 1049 | 1086 |
| 552 | Educational Anthropology | 1 | 29 | 243 | 170 |
| 552 | Social behavior | 4 | 29 | 1199 | 2228 |
| 554 | Advertising | 3 | 28 | 382 | 753 |
| 554 | Memory disorders | 2 | 28 | 361 | 511 |
| 556 | Performing Arts | 1 | 27 | 478 | 54 |
| 556 | Hydraulic Engineering | 1 | 27 | 1844 | 1644 |
| 556 | Clinical Chemistry | 4 | 27 | 3393 | 5456 |
| 556 | Natural resources | 1 | 27 | 1551 | 1574 |
| 556 | Hydrodynamics | 1 | 27 | 1067 | 1130 |
| 556 | Solid State Chemistry | 9 | 27 | 1802 | 3592 |
| 556 | fame | 1 | 27 | 130 | 48 |
| 556 | Estuaries | 3 | 27 | 195 | 460 |
| 556 | biological monitoring | 3 | 27 | 584 | 1311 |
| 565 | Anthropology | 1 | 26 | 3275 | 2455 |
| 565 | Analytical Biochemistry | 1 | 26 | 3430 | 3426 |
| 565 | Superconductors | 2 | 26 | 934 | 1002 |
| 565 | Human evolution | 1 | 26 | 840 | 954 |
| 565 | Superconductivity | 2 | 26 | 670 | 763 |
| 565 | Sports | 2 | 26 | 2952 | 2975 |
| 565 | Virulence | 1 | 26 | 2268 | 2934 |
| 565 | Europa | 6 | 26 | 357 | 944 |
| 565 | Immunity | 1 | 26 | 3563 | 4203 |
| 565 | Judaism | 6 | 26 | 94 | 43 |
| 575 | Materials Science | 3 | 25 | 5587 | 6950 |
| 575 | Marine Ecology | 2 | 25 | 1091 | 1437 |
| 575 | Feasibility studies | 2 | 25 | 482 | 435 |
| 575 | Religion and Sociology | 4 | 25 | 225 | 277 |
| 575 | Colloids | 2 | 25 | 4783 | 6142 |
| 575 | Reproduction | 4 | 25 | 2633 | 4321 |
| 575 | mathematical analysis | 1 | 25 | 3632 | 2754 |
| 582 | Special Education | 2 | 24 | 1158 | 1200 |
| 582 | Medical Microbiology | 1 | 24 | 4498 | 5142 |
| 582 | Digital Media | 1 | 24 | 418 | 398 |
| 582 | Terahertz Technology | 1 | 24 | 106 | 50 |
| 582 | Computational Fluid Dynamics | 2 | 24 | 983 | 1265 |
| 582 | Obesity | 3 | 24 | 2605 | 4432 |
| 582 | religious life | 3 | 24 | 30 | 9 |
| 589 | Industrial Engineering | 1 | 23 | 3503 | 3411 |
| 589 | Industrial Design | 1 | 23 | 581 | 568 |
| 589 | Environmental Microbiology | 1 | 23 | 2819 | 3439 |
| 589 | Simulation Methods | 2 | 23 | 1479 | 1904 |
| 589 | curriculum evaluation | 1 | 23 | 708 | 687 |
| 589 | England | 8 | 23 | 94 | 116 |
| 595 | Vocational Education | 1 | 22 | 1078 | 938 |
| 595 | Ocean Engineering | 4 | 22 | 1630 | 2943 |
| 595 | Biofilms | 1 | 22 | 383 | 590 |
| 595 | Microorganisms | 1 | 22 | 2340 | 2965 |
| 595 | Middle Ages | 1 | 22 | 430 | 146 |
| 600 | Cultural Studies | 1 | 21 | 390 | 353 |
| 600 | Disability Studies | 1 | 21 | 625 | 556 |
| 600 | Raman spectroscopy | 4 | 21 | 819 | 1805 |
| 600 | Religion and Culture | 1 | 21 | 711 | 551 |
| 600 | Religion and Psychology | 1 | 21 | 1191 | 1022 |
| 600 | drug abuse | 1 | 21 | 1437 | 1481 |
| 600 | harm reduction | 1 | 21 | 502 | 550 |
| 607 | Ophthalmology | 1 | 20 | 3259 | 3546 |
| 607 | Engineering Ethics | 1 | 20 | 473 | 558 |
| 607 | Electromagnetism | 1 | 20 | 1462 | 1288 |
| 607 | Professional ethics | 1 | 20 | 659 | 759 |
| 607 | Library Science | 4 | 20 | 1283 | 1633 |
| 607 | child abuse | 2 | 20 | 1259 | 2003 |
| 613 | Phenomenology | 6 | 19 | 140 | 288 |
| 613 | Water Purification | 2 | 19 | 1667 | 2336 |
| 613 | Water quality management | 2 | 19 | 2698 | 3584 |
| 613 | Smoking | 1 | 19 | 1558 | 1922 |
| 613 | Randomized Controlled Trials | 1 | 19 | 2584 | 2548 |
| 613 | DNA repair | 1 | 19 | 674 | 880 |
| 613 | Germany | 5 | 19 | 579 | 891 |
| 613 | drug addiction | 1 | 19 | 2282 | 2666 |
| 613 | alcoholism | 1 | 19 | 2944 | 3297 |
| 622 | Sports Medicine | 1 | 18 | 4665 | 4230 |
| 622 | probabilities | 7 | 18 | 975 | 1713 |
| 622 | Exercise | 1 | 18 | 2618 | 2453 |
| 625 | Tribology | 2 | 17 | 1681 | 2282 |
| 625 | Active Learning | 1 | 17 | 187 | 267 |
| 625 | Computer-Aided Design | 1 | 17 | 2444 | 2500 |
| 625 | Microprocessors | 5 | 17 | 427 | 1135 |
| 625 | Political Parties | 1 | 17 | 434 | 437 |
| 625 | ethnic groups | 1 | 17 | 702 | 844 |
| 625 | concrete | 2 | 17 | 1370 | 2081 |
| 625 | Insects | 2 | 17 | 2148 | 2671 |
| 625 | alcohol | 2 | 17 | 122 | 195 |
| 634 | Chemical Engineering | 2 | 16 | 5874 | 7553 |
| 634 | Immunology | 2 | 16 | 5380 | 7156 |
| 634 | Geometry | 3 | 16 | 1413 | 1558 |
| 634 | Neural circuitry | 1 | 16 | 3411 | 3958 |
| 638 | Nanochemistry | 1 | 15 | 2275 | 2626 |
| 638 | Religion and Science | 4 | 15 | 94 | 168 |
| 638 | Forensic Psychiatry | 2 | 15 | 838 | 1225 |
| 638 | Discrete Mathematics | 1 | 15 | 716 | 467 |
| 638 | Common Law | 10 | 15 | 56 | 152 |
| 638 | Popular Literature | 4 | 15 | 92 | 167 |
| 638 | graph | 1 | 15 | 716 | 467 |
| 638 | Zeolites | 2 | 15 | 1298 | 2195 |
| 638 | educational innovations | 3 | 15 | 587 | 1142 |
| 647 | Classical Philology | 2 | 14 | 413 | 245 |
| 647 | Bioinorganic chemistry | 1 | 14 | 2514 | 3014 |
| 647 | Developmental Disabilities | 1 | 14 | 1939 | 2496 |
| 647 | Plant hormones | 1 | 14 | 699 | 965 |
| 647 | European integration | 2 | 14 | 315 | 537 |
| 647 | probation | 3 | 14 | 72 | 105 |
| 647 | European Economic Community | 2 | 14 | 303 | 536 |
| 654 | Microbial Biotechnology | 1 | 13 | 2045 | 2589 |
| 654 | Feminist criticism | 1 | 13 | 262 | 260 |
| 654 | intergroup relations | 1 | 13 | 378 | 529 |
| 654 | Qualitative Research | 1 | 13 | 1019 | 1147 |
| 654 | philology | 2 | 13 | 1019 | 364 |
| 654 | sadness | 1 | 13 | 556 | 699 |
| 654 | antisocial personality disorder | 1 | 13 | 556 | 699 |
| 654 | Ireland | 4 | 13 | 179 | 321 |
| 662 | Neuropsychiatry | 1 | 12 | 1821 | 2288 |
| 662 | Macroeconomics | 1 | 12 | 748 | 802 |
| 662 | Seismology | 1 | 12 | 1033 | 1153 |
| 662 | Manufacturing Processes | 3 | 12 | 2684 | 4316 |
| 662 | Computational Biology | 2 | 12 | 4608 | 6416 |
| 662 | Regional Economics | 2 | 12 | 650 | 1071 |
| 662 | Music | 3 | 12 | 1116 | 1678 |
| 662 | foreign policy | 60 | 12 | 24 | 368 |
| 662 | Virology | 1 | 12 | 5597 | 6848 |
| 662 | Diplomatic relations | 60 | 12 | 60 | 968 |
| 662 | strategy | 7 | 12 | 137 | 381 |
| 662 | Nonlinear systems | 1 | 12 | 1190 | 1283 |
| 674 | Marine Engineering | 1 | 11 | 653 | 537 |
| 674 | Political Geography | 2 | 11 | 395 | 717 |
| 674 | Naval Architecture | 1 | 11 | 690 | 754 |
| 674 | behavioral medicine | 1 | 11 | 2798 | 3902 |
| 674 | Critical Legal Studies | 8 | 11 | 42 | 273 |
| 674 | terrorism | 2 | 11 | 413 | 655 |
| 674 | Administration | 1 | 11 | 198 | 274 |
| 674 | migration policy | 1 | 11 | 478 | 669 |
| 674 | national security | 4 | 11 | 370 | 640 |
| 674 | violence | 3 | 11 | 1120 | 2371 |
| 684 | Educational Sociology | 2 | 10 | 507 | 851 |
| 684 | mutation | 1 | 10 | 1324 | 1914 |
| 684 | Arboriculture | 1 | 10 | 158 | 132 |
| 684 | Radiation | 1 | 10 | 4152 | 4680 |
| 684 | International Education | 1 | 10 | 532 | 727 |
| 684 | Postcolonialism | 1 | 10 | 270 | 241 |
| 684 | Chemical processes | 1 | 10 | 1299 | 1641 |
| 684 | Social environment | 1 | 10 | 524 | 839 |
| 684 | Chromosomes | 1 | 10 | 1959 | 2677 |
| 684 | Food preferences | 1 | 10 | 789 | 1177 |
| 684 | civil service | 1 | 10 | 760 | 884 |
| 695 | Freshwater Ecology | 1 | 9 | 616 | 805 |
| 695 | Travel | 1 | 9 | 2058 | 2551 |
| 695 | Electrochemical Analysis | 1 | 9 | 2610 | 3265 |
| 695 | Communism | 2 | 9 | 227 | 387 |
| 695 | economic conditions | 6 | 9 | 456 | 1288 |
| 695 | Aquatic animals | 1 | 9 | 466 | 723 |
| 701 | Religion and Politics | 1 | 8 | 198 | 225 |
| 701 | Music composition | 2 | 8 | 12 | 26 |
| 701 | Ideology | 1 | 8 | 172 | 189 |
| 701 | optical instruments | 1 | 8 | 815 | 1049 |
| 701 | Family | 1 | 8 | 1900 | 2495 |
| 701 | families | 1 | 8 | 1684 | 2074 |
| 701 | Nuclear family | 1 | 8 | 348 | 449 |
| 701 | public assistance | 1 | 8 | 121 | 130 |
| 709 | Paleoecology | 1 | 7 | 1754 | 2322 |
| 709 | Structural design | 1 | 7 | 1534 | 1985 |
| 709 | Counseling Psychology | 1 | 7 | 474 | 752 |
| 709 | epilepsy | 1 | 7 | 2002 | 2772 |
| 709 | Crystallization | 1 | 7 | 1095 | 1289 |
| 709 | Bioethics | 1 | 7 | 1908 | 2298 |
| 709 | Paleogeography | 1 | 7 | 1567 | 2103 |
| 709 | Medical Ethics | 1 | 7 | 2473 | 2994 |
| 709 | Multilingualism | 1 | 7 | 576 | 821 |
| 709 | Crystallography | 1 | 7 | 2965 | 2930 |
| 709 | Renaissance | 3 | 7 | 293 | 309 |
| 709 | counseling | 1 | 7 | 2744 | 3496 |
| 709 | Iran | 1 | 7 | 386 | 395 |
| 722 | Cognitive Psychology | 1 | 6 | 841 | 1025 |
| 722 | Green Chemistry | 1 | 6 | 2823 | 3904 |
| 722 | Sustainable Engineering | 1 | 6 | 2907 | 3914 |
| 722 | Agricultural Chemistry | 1 | 6 | 4106 | 5198 |
| 722 | Stochastic Processes | 5 | 6 | 790 | 2239 |
| 722 | Agricultural Biotechnology | 2 | 6 | 479 | 756 |
| 722 | insurgency | 1 | 6 | 187 | 250 |
| 722 | Public Spaces | 3 | 6 | 61 | 281 |
| 722 | Plasma chemistry | 2 | 6 | 599 | 1276 |
| 722 | Cognitive Science | 2 | 6 | 2202 | 3880 |
| 722 | Thin Films | 1 | 6 | 1254 | 1654 |
| 722 | Plant genetic engineering | 2 | 6 | 1351 | 2450 |
| 722 | Plant tissue culture | 2 | 6 | 1067 | 1990 |
| 722 | Second Language Acquisition | 1 | 6 | 383 | 644 |
| 722 | arms control | 10 | 6 | 12 | 242 |
| 722 | personal space | 3 | 6 | 53 | 269 |
| 722 | Plasma polymerization | 2 | 6 | 390 | 901 |
| 722 | Parkinson's disease | 1 | 6 | 541 | 964 |
| 722 | software | 1 | 6 | 2018 | 2970 |
| 722 | Population | 6 | 6 | 832 | 2933 |
| 722 | police | 2 | 6 | 545 | 879 |
| 743 | Architecture | 2 | 5 | 1010 | 1286 |
| 743 | Automation | 1 | 5 | 3235 | 4099 |
| 743 | Theater | 2 | 5 | 431 | 232 |
| 743 | Romanticism | 2 | 5 | 224 | 201 |
| 743 | Gerontology | 1 | 5 | 3914 | 4646 |
| 743 | Elderly | 1 | 5 | 2615 | 2573 |
| 743 | older people | 1 | 5 | 3374 | 3793 |
| 743 | Building | 1 | 5 | 1292 | 1628 |
| 743 | Statistical models | 1 | 5 | 247 | 426 |
| 743 | rehabilitation | 2 | 5 | 3400 | 5788 |
| 753 | Musicology | 1 | 4 | 497 | 554 |
| 753 | Civil Engineering | 1 | 4 | 3302 | 3770 |
| 753 | Anatomy | 1 | 4 | 3734 | 4911 |
| 753 | Mathematics Education | 4 | 4 | 441 | 1093 |
| 753 | Crime prevention | 1 | 4 | 630 | 864 |
| 753 | Community Psychiatry | 1 | 4 | 2238 | 3264 |
| 753 | Morphology | 1 | 4 | 1649 | 2125 |
| 753 | Dynamics | 1 | 4 | 3251 | 4052 |
| 753 | Molecular Genetics | 1 | 4 | 3785 | 5288 |
| 753 | Topology | 1 | 4 | 606 | 703 |
| 753 | Radiochemistry | 1 | 4 | 2051 | 2575 |
| 753 | Biblical Studies | 8 | 4 | 67 | 177 |
| 753 | Soft Condensed Matter | 1 | 4 | 1927 | 2725 |
| 753 | Holistic Health | 1 | 4 | 1095 | 1725 |
| 753 | Molecules | 1 | 4 | 2613 | 3276 |
| 753 | breastfeeding | 2 | 4 | 833 | 1948 |
| 753 | Christianity | 8 | 4 | 103 | 287 |
| 753 | Social interaction | 3 | 4 | 340 | 1022 |
| 753 | Bible | 8 | 4 | 160 | 304 |
| 753 | technical education | 1 | 4 | 1029 | 1520 |
| 753 | biopolymers | 1 | 4 | 2170 | 3070 |
| 753 | allied health | 1 | 4 | 580 | 1043 |
| 753 | Psychiatric hospitals | 1 | 4 | 723 | 928 |
| 753 | Quantum theory | 1 | 4 | 1649 | 2103 |
| 753 | bees | 1 | 4 | 803 | 1226 |
| 753 | Aquatic ecology | 1 | 4 | 1879 | 2635 |
| 779 | Mobile Computing | 2 | 3 | 1688 | 2938 |
| 779 | Production Engineering | 1 | 3 | 3518 | 4613 |
| 779 | Digital electronics | 1 | 3 | 691 | 994 |
| 779 | Ethnic relations | 6 | 3 | 392 | 1526 |
| 779 | Liquid Crystals | 1 | 3 | 1667 | 2043 |
| 779 | Ethnic Conflict | 6 | 3 | 158 | 876 |
| 779 | Psychoanalysis | 1 | 3 | 838 | 979 |
| 779 | Adoption | 1 | 3 | 253 | 425 |
| 779 | Synaptic Transmission | 1 | 3 | 1066 | 1710 |
| 779 | Archival Science | 1 | 3 | 23 | 27 |
| 779 | Primary health care | 1 | 3 | 3822 | 5568 |
| 779 | Electron Microscopy | 1 | 3 | 890 | 1374 |
| 779 | Utilitarianism | 1 | 3 | 29 | 45 |
| 779 | Molecular ecology | 1 | 3 | 2085 | 3181 |
| 779 | biological factors | 1 | 3 | 3597 | 5153 |
| 779 | forced migration | 6 | 3 | 158 | 876 |
| 779 | prejudices | 1 | 3 | 104 | 143 |
| 779 | Urban Areas | 1 | 3 | 524 | 896 |
| 779 | Archives | 2 | 3 | 167 | 281 |
| 779 | prejudice | 1 | 3 | 41 | 84 |
| 799 | Literature | 13 | 2 | 431 | 1087 |
| 799 | Radiology | 1 | 2 | 3290 | 4403 |
| 799 | Algebra | 1 | 2 | 2394 | 2689 |
| 799 | Architectural Design | 2 | 2 | 638 | 1410 |
| 799 | Information Retrieval | 1 | 2 | 1010 | 1631 |
| 799 | Aesthetics | 8 | 2 | 86 | 431 |
| 799 | Computational Linguistics | 1 | 2 | 1241 | 1846 |
| 799 | Data Science | 4 | 2 | 192 | 272 |
| 799 | community development | 6 | 2 | 412 | 1837 |
| 799 | Ecocriticism | 1 | 2 | 66 | 89 |
| 799 | Geopolitics | 1 | 2 | 603 | 975 |
| 799 | Blended Learning | 1 | 2 | 76 | 215 |
| 799 | Sovereignty | 1 | 2 | 283 | 534 |
| 799 | Radiobiology | 1 | 2 | 3340 | 4097 |
| 799 | Social Media | 1 | 2 | 448 | 660 |
| 799 | Investment analysis | 1 | 2 | 1570 | 2262 |
| 799 | Iberian Peninsula | 1 | 2 | 97 | 77 |
| 799 | Buddhism | 2 | 2 | 214 | 162 |
| 799 | design | 2 | 2 | 384 | 719 |
| 799 | Documentation | 1 | 2 | 786 | 1147 |
| 799 | Learning strategies | 1 | 2 | 87 | 245 |
| 799 | disabilities | 1 | 2 | 1633 | 2570 |
| 799 | libraries | 2 | 2 | 1179 | 1752 |
| 799 | Spectrum analysis | 1 | 2 | 6887 | 8888 |
| 799 | statutes | 1 | 2 | 52 | 61 |
| 799 | recreation | 1 | 2 | 1269 | 1899 |
| 799 | Spain | 3 | 2 | 953 | 1835 |
| 799 | molecular chaperones | 1 | 2 | 630 | 1207 |
| 799 | Leisure | 1 | 2 | 678 | 1156 |
| 828 | Sustainable Development | 1 | 1 | 4127 | 6247 |
| 828 | Traffic Engineering | 1 | 1 | 805 | 1412 |
| 828 | Religion and Literature | 4 | 1 | 22 | 67 |
| 828 | Creative Writing | 4 | 1 | 7 | 20 |
| 828 | Community Psychology | 1 | 1 | 1165 | 2037 |
| 828 | Environmental Ethics | 4 | 1 | 122 | 692 |
| 828 | Environmental Geography | 1 | 1 | 120 | 301 |
| 828 | Plant Taxonomy | 1 | 1 | 825 | 1277 |
| 828 | Optoelectronics | 1 | 1 | 1192 | 1824 |
| 828 | Particle Physics | 2 | 1 | 1137 | 1900 |
| 828 | Geodesy | 1 | 1 | 1560 | 2520 |
| 828 | short story | 4 | 1 | 7 | 21 |
| 828 | Language and Culture | 1 | 1 | 373 | 647 |
| 828 | Neurotransmitters | 1 | 1 | 1199 | 1406 |
| 828 | Ecosystem management | 1 | 1 | 1427 | 2348 |
| 828 | Art | 1 | 1 | 911 | 888 |
| 828 | sexual orientation | 1 | 1 | 293 | 638 |
| 828 | Aerosols | 2 | 1 | 854 | 1841 |
| 828 | Semiotics | 1 | 1 | 784 | 988 |
| 828 | Gender identity | 1 | 1 | 660 | 1024 |
| 828 | Semigroups | 2 | 1 | 399 | 821 |
| 828 | France | 6 | 1 | 331 | 1141 |
| 828 | data collection | 1 | 1 | 2520 | 4223 |
| 828 | Criticism | 2 | 1 | 370 | 648 |
| 828 | Steroids | 1 | 1 | 1994 | 3082 |
| 828 | Military psychology | 1 | 1 | 279 | 552 |
| 828 | tests | 1 | 1 | 392 | 785 |
| 828 | aerosol | 2 | 1 | 598 | 1323 |
| 856 | Surgery | 2 | 0 | 3141 | 5396 |
| 856 | American Literature | 2 | 0 | 854 | 1027 |
| 856 | Metabolism | 2 | 0 | 4172 | 7261 |
| 856 | Neurosurgery | 1 | 0 | 2353 | 3418 |
| 856 | Career development | 1 | 0 | 875 | 1592 |
| 856 | cultural policy | 1 | 0 | 451 | 832 |
| 856 | Politics | 8 | 0 | 416 | 1821 |
| 856 | Marine Pollution | 2 | 0 | 1760 | 3563 |
| 856 | Corporate governance | 1 | 0 | 1204 | 2135 |
| 856 | Genealogy | 1 | 0 | 14 | 11 |
| 856 | Fixed Point Theory | 1 | 0 | 646 | 1025 |
| 856 | Magnetic Resonance Spectroscopy | 1 | 0 | 2245 | 3347 |
| 856 | Church History | 3 | 0 | 120 | 343 |
| 856 | Interfaces | 1 | 0 | 732 | 1358 |
| 856 | income | 1 | 0 | 415 | 782 |
| 856 | nuclear magnetic resonance spectroscopy | 1 | 0 | 1447 | 2209 |
| 856 | Eastern Europe | 1 | 0 | 2010 | 3026 |
| 856 | organizational effectiveness | 1 | 0 | 946 | 1749 |
| 856 | Latin America | 2 | 0 | 1915 | 3339 |
| 856 | construction | 1 | 0 | 423 | 800 |
| 856 | Ethnology | 1 | 0 | 3020 | 4339 |
| 856 | Communist countries | 1 | 0 | 588 | 1087 |
| 856 | Input-output analysis | 1 | 0 | 577 | 1021 |
| 856 | nuclear power | 1 | 0 | 1052 | 1600 |
| 856 | Wealth | 1 | 0 | 415 | 782 |
| 856 | Telecommunication | 1 | 0 | 4175 | 5927 |
| 856 | refugees | 1 | 0 | 591 | 1087 |
| 856 | Africa | 11 | 0 | 868 | 5145 |
| 856 | government | 8 | 0 | 482 | 2050 |
| 856 | Middle East | 1 | 0 | 2052 | 3099 |
| 856 | corporate culture | 1 | 0 | 430 | 897 |
| 856 | Education history | 1 | 0 | 204 | 422 |
| 856 | Feminist psychology | 1 | 0 | 187 | 377 |
| 856 | Shipping | 3 | 0 | 81 | 480 |
| 856 | values | 1 | 0 | 560 | 888 |
| 856 | Agricultural systems | 1 | 0 | 703 | 1366 |
| 856 | Mountains | 1 | 0 | 942 | 1660 |
| 856 | church and state | 1 | 0 | 268 | 272 |
| 856 | NMR | 1 | 0 | 1097 | 1748 |
| 856 | Aggression | 1 | 0 | 960 | 1838 |
| 856 | Jews | 2 | 0 | 393 | 722 |
| 856 | Bones | 1 | 0 | 1864 | 2667 |
| 856 | magnetic resonance | 1 | 0 | 1152 | 1828 |
