| 1 | Economics | 668 | 34.9K | 2 | 10 |
| 2 | Public Health | 485 | 19.6K | 40 | 60 |
| 3 | Psychology | 358 | 18.5K | 30 | 63 |
| 4 | Sociology | 437 | 18.0K | 3 | 10 |
| 5 | Medicine | 346 | 17.1K | 132 | 325 |
| 6 | Political Science | 448 | 14.1K | 2 | 2 |
| 7 | Economic History | 425 | 13.6K | 2 | 4 |
| 8 | Developing countries | 300 | 13.4K | 2 | 2 |
| 9 | Social Sciences | 375 | 12.0K | 2 | 2 |
| 10 | Econometrics | 109 | 10.9K | 18 | 25 |
| 11 | Science | 271 | 10.5K | 321 | 2013 |
| 12 | Europe | 375 | 10.5K | 2 | 5 |
| 13 | Statistics | 188 | 10.0K | 65 | 54 |
| 14 | Economic Development | 204 | 9.7K | 2 | 2 |
| 15 | Public Administration | 234 | 8.6K | 2 | 3 |
| 16 | International Relations | 298 | 8.4K | 2 | 2 |
| 17 | United Kingdom | 361 | 7.7K | 2 | 14 |
| 18 | Development | 129 | 7.5K | 2 | 2 |
| 19 | Public Policy | 178 | 7.2K | 3 | 6 |
| 19 | Communication | 104 | 7.2K | 15 | 14 |
| 21 | Medical Anthropology | 150 | 7.0K | 5 | 16 |
| 22 | health planning | 160 | 7.0K | 7 | 8 |
| 23 | human behavior | 63 | 6.8K | 162 | 89 |
| 24 | Economic Assistance | 111 | 6.8K | 2 | 2 |
| 25 | Regional Planning | 150 | 6.5K | 3 | 7 |
| 26 | Mathematical Economics | 12 | 6.4K | 55 | 15 |
| 27 | Social Psychology | 130 | 6.4K | 28 | 75 |
| 28 | Psychiatry | 131 | 6.1K | 317 | 482 |
| 29 | Environmental Policy | 98 | 6.0K | 21 | 41 |
| 30 | economic policy | 187 | 6.0K | 3 | 4 |
| 31 | world | 72 | 5.9K | 4 | 3 |
| 32 | Biology | 99 | 5.2K | 1979 | 4053 |
| 33 | Ecology | 57 | 5.2K | 1171 | 871 |
| 34 | Behavior | 47 | 5.2K | 472 | 186 |
| 35 | United States | 159 | 5.2K | 62 | 83 |
| 36 | management | 101 | 5.2K | 20 | 31 |
| 37 | Health Education | 101 | 5.1K | 22 | 19 |
| 38 | city planning | 132 | 5.0K | 4 | 4 |
| 39 | medical education | 94 | 4.7K | 39 | 28 |
| 40 | Geography | 118 | 4.7K | 53 | 54 |
| 41 | Epidemiology | 150 | 4.6K | 133 | 224 |
| 42 | Law | 196 | 4.6K | 4 | 2 |
| 43 | Mental Disorders | 82 | 4.5K | 250 | 357 |
| 44 | Welfare Economics | 66 | 4.4K | 2 | 5 |
| 45 | Health Policy | 148 | 4.4K | 27 | 46 |
| 46 | European integration | 81 | 4.3K | 2 | 2 |
| 46 | European Economic Community | 81 | 4.3K | 2 | 2 |
| 48 | Research | 144 | 3.9K | 435 | 1253 |
| 49 | Environment | 78 | 3.6K | 325 | 797 |
| 50 | civil service | 86 | 3.5K | 2 | 5 |
| 51 | Culture | 104 | 3.3K | 2 | 2 |
| 52 | Demography | 74 | 3.3K | 10 | 16 |
| 53 | Human Geography | 106 | 3.2K | 23 | 43 |
| 54 | international cooperation | 46 | 3.1K | 5 | 5 |
| 55 | Common Law | 136 | 3.1K | 3 | 2 |
| 56 | Microeconomics | 44 | 2.9K | 4 | 6 |
| 57 | Energy Policy | 50 | 2.9K | 125 | 117 |
| 58 | Geriatrics | 70 | 2.9K | 159 | 207 |
| 59 | energy resources | 49 | 2.9K | 27 | 51 |
| 60 | Development Economics | 42 | 2.8K | 2 | 4 |
| 61 | Aging | 71 | 2.8K | 107 | 191 |
| 62 | Diplomatic relations | 135 | 2.8K | 2 | 2 |
| 63 | Health Services Research | 77 | 2.7K | 52 | 66 |
| 64 | Social policy | 104 | 2.7K | 2 | 3 |
| 65 | peace | 53 | 2.7K | 4 | 15 |
| 66 | Education | 109 | 2.6K | 82 | 124 |
| 67 | Social work | 58 | 2.5K | 4 | 2 |
| 68 | Social behavior | 47 | 2.3K | 16 | 53 |
| 69 | Mass Media | 65 | 2.3K | 3 | 2 |
| 70 | Business | 54 | 2.3K | 14 | 38 |
| 71 | Globalization | 48 | 2.2K | 3 | 5 |
| 72 | Philosophy | 142 | 2.1K | 12 | 33 |
| 73 | Corporate governance | 24 | 2.1K | 2 | 2 |
| 74 | Geriatric Psychiatry | 49 | 2.1K | 30 | 24 |
| 75 | foreign policy | 89 | 2.1K | 2 | 2 |
| 76 | administrative agencies | 35 | 2.1K | 2 | 2 |
| 77 | Information Technology | 50 | 2.1K | 31 | 93 |
| 78 | Social welfare | 32 | 2.1K | 2 | 2 |
| 79 | International Finance | 69 | 2.0K | 22 | 32 |
| 80 | Primary health care | 47 | 2.0K | 75 | 39 |
| 81 | Europa | 43 | 2.0K | 2 | 3 |
| 82 | Pollution | 31 | 1.9K | 1590 | 1534 |
| 83 | Physics | 46 | 1.9K | 4047 | 8508 |
| 84 | Global Health | 46 | 1.8K | 39 | 21 |
| 85 | industrial relations | 97 | 1.8K | 2 | 2 |
| 86 | Population | 61 | 1.8K | 3 | 16 |
| 87 | Asia | 37 | 1.8K | 86 | 24 |
| 88 | Demographic research | 36 | 1.7K | 2 | 3 |
| 89 | Environmental Health | 32 | 1.7K | 1253 | 1299 |
| 90 | Sustainable Development | 38 | 1.7K | 13 | 59 |
| 91 | Economic planning | 15 | 1.7K | 15 | 4 |
| 92 | Telecommunication | 26 | 1.7K | 501 | 363 |
| 93 | Information Theory | 10 | 1.7K | 636 | 158 |
| 94 | Natural resources | 29 | 1.7K | 27 | 26 |
| 95 | behavioral medicine | 29 | 1.7K | 142 | 216 |
| 96 | Regional Development | 12 | 1.6K | 25 | 4 |
| 96 | Development planning | 12 | 1.6K | 12 | 4 |
| 98 | Land Use Planning | 42 | 1.6K | 4 | 11 |
| 99 | Government policy | 25 | 1.6K | 3 | 5 |
| 100 | European Union | 38 | 1.6K | 2 | 2 |
| 101 | Pediatrics | 9 | 1.6K | 2153 | 641 |
| 102 | Earth Sciences | 46 | 1.6K | 214 | 330 |
| 103 | finance | 49 | 1.5K | 70 | 63 |
| 104 | organization | 27 | 1.5K | 6 | 33 |
| 105 | civilization | 28 | 1.5K | 2 | 2 |
| 106 | Mental illness | 28 | 1.4K | 425 | 682 |
| 107 | Decision making | 39 | 1.4K | 13 | 43 |
| 108 | race relations | 52 | 1.4K | 2 | 6 |
| 109 | Mental Health | 49 | 1.4K | 73 | 82 |
| 110 | warfare | 23 | 1.4K | 13 | 18 |
| 111 | Child psychology | 23 | 1.4K | 379 | 343 |
| 112 | Quality of life | 43 | 1.4K | 32 | 100 |
| 113 | Gerontology | 53 | 1.3K | 73 | 124 |
| 114 | Anthropology | 70 | 1.3K | 48 | 123 |
| 115 | Elections | 53 | 1.3K | 2 | 8 |
| 116 | Political Sociology | 35 | 1.3K | 2 | 13 |
| 117 | Health Services Administration | 41 | 1.3K | 31 | 55 |
| 118 | Social Change | 29 | 1.3K | 7 | 39 |
| 119 | Popular culture | 35 | 1.3K | 2 | 2 |
| 120 | Molecular Biology | 8 | 1.3K | 20762 | 8475 |
| 121 | Geology | 39 | 1.3K | 482 | 561 |
| 122 | Oceanography | 39 | 1.2K | 146 | 262 |
| 123 | Adolescent Medicine | 3 | 1.2K | 602 | 118 |
| 124 | Ethnology | 68 | 1.2K | 5 | 17 |
| 125 | libraries | 11 | 1.2K | 6 | 4 |
| 126 | Mental Health Services | 42 | 1.2K | 71 | 75 |
| 127 | Dementia | 38 | 1.1K | 152 | 235 |
| 128 | ethnicity | 90 | 1.1K | 2 | 2 |
| 129 | Mathematics | 73 | 1.1K | 1161 | 1072 |
| 130 | Operations Research | 44 | 1.1K | 123 | 223 |
| 131 | War and Society | 12 | 1.1K | 27 | 25 |
| 132 | Telecommunications | 9 | 1.1K | 92 | 4 |
| 133 | Small Business | 9 | 1.1K | 48 | 37 |
| 134 | Entrepreneurship | 9 | 1.1K | 51 | 42 |
| 135 | Organizational Behavior | 15 | 1.1K | 17 | 31 |
| 136 | Natural history | 20 | 1.1K | 1667 | 7783 |
| 137 | Political Participation | 37 | 1.1K | 3 | 10 |
| 138 | Voting | 33 | 1.0K | 3 | 10 |
| 139 | commerce | 46 | 1.0K | 14 | 84 |
| 140 | election law | 32 | 1.0K | 4 | 11 |
| 141 | Broadcasting | 2 | 1.0K | 100 | 2 |
| 142 | International security | 17 | 1.0K | 15 | 31 |
| 143 | ethnic groups | 33 | 1.0K | 2 | 4 |
| 144 | Human Resources | 5 | 1.0K | 38 | 5 |
| 145 | Information Science | 25 | 953 | 209 | 273 |
| 146 | personality | 32 | 952 | 199 | 387 |
| 147 | Feminism | 29 | 950 | 4 | 6 |
| 148 | Renewable Energy Sources | 11 | 921 | 1029 | 1128 |
| 149 | health services accessibility | 37 | 917 | 49 | 70 |
| 150 | Psychometrics | 35 | 915 | 12 | 61 |
| 151 | Nationalism | 85 | 911 | 2 | 2 |
| 151 | conflict management | 14 | 911 | 10 | 19 |
| 153 | Medical genetics | 5 | 906 | 5586 | 2401 |
| 154 | Community Psychology | 26 | 902 | 22 | 67 |
| 155 | Human genetics | 4 | 888 | 4795 | 4483 |
| 156 | Macroeconomics | 16 | 887 | 6 | 15 |
| 157 | Business Ethics | 9 | 876 | 47 | 49 |
| 158 | Alzheimer's disease | 23 | 875 | 295 | 369 |
| 159 | Child welfare | 19 | 861 | 85 | 33 |
| 160 | Urban Policy | 27 | 834 | 20 | 39 |
| 161 | Community Psychiatry | 25 | 831 | 106 | 165 |
| 162 | Human Rights | 41 | 824 | 6 | 9 |
| 163 | Child Development | 19 | 817 | 542 | 566 |
| 164 | Engineering | 10 | 811 | 2568 | 640 |
| 165 | Vocational guidance | 11 | 810 | 186 | 100 |
| 166 | Criminology | 45 | 805 | 49 | 86 |
| 167 | sustainability | 19 | 804 | 16 | 96 |
| 168 | Genomics | 3 | 791 | 7460 | 1181 |
| 169 | Environmental Economics | 21 | 768 | 4 | 13 |
| 170 | Urban Economics | 9 | 753 | 55 | 39 |
| 171 | Child | 20 | 748 | 718 | 584 |
| 172 | Australia | 44 | 746 | 241 | 292 |
| 173 | urban population | 6 | 738 | 66 | 35 |
| 174 | Technology | 20 | 733 | 1153 | 1100 |
| 175 | disarmament | 24 | 707 | 2 | 5 |
| 175 | Jurisprudence | 42 | 707 | 15 | 38 |
| 177 | social science | 13 | 706 | 4 | 25 |
| 178 | Qualitative Research | 8 | 699 | 48 | 15 |
| 179 | China | 28 | 690 | 506 | 478 |
| 180 | marketing | 29 | 687 | 32 | 132 |
| 181 | disaster relief | 22 | 681 | 2 | 4 |
| 182 | health services | 29 | 674 | 41 | 86 |
| 183 | Economic Geography | 29 | 670 | 11 | 26 |
| 184 | Feminist Economics | 10 | 658 | 4 | 8 |
| 184 | Autism | 3 | 658 | 743 | 166 |
| 186 | Meteorology | 23 | 650 | 404 | 937 |
| 187 | Journalism | 27 | 645 | 13 | 17 |
| 188 | Ethnic relations | 32 | 641 | 2 | 12 |
| 189 | risk factors | 12 | 640 | 60 | 64 |
| 190 | cultural policy | 21 | 635 | 8 | 3 |
| 190 | Eastern Europe | 37 | 635 | 10 | 12 |
| 192 | Socioeconomic Factors | 21 | 631 | 38 | 61 |
| 193 | economic development projects | 22 | 627 | 2 | 4 |
| 194 | Psychiatric Epidemiology | 11 | 621 | 133 | 117 |
| 195 | Health insurance | 8 | 616 | 125 | 82 |
| 196 | Political Geography | 24 | 608 | 19 | 36 |
| 197 | energy development | 8 | 607 | 120 | 369 |
| 198 | Auditing | 6 | 606 | 9 | 3 |
| 199 | population trends | 5 | 603 | 19 | 19 |
| 200 | Transportation | 16 | 600 | 482 | 472 |
| 201 | Depression | 2 | 598 | 463 | 152 |
| 201 | Anxiety Disorders | 2 | 598 | 730 | 241 |
| 201 | Anxiety | 2 | 598 | 718 | 237 |
| 204 | international trade | 19 | 576 | 14 | 72 |
| 204 | pain | 10 | 576 | 649 | 617 |
| 206 | Adolescent | 23 | 568 | 399 | 561 |
| 207 | Political Psychology | 14 | 567 | 30 | 50 |
| 208 | Risk Management | 17 | 563 | 22 | 61 |
| 208 | local government | 26 | 563 | 5 | 15 |
| 210 | Biotechnology | 14 | 561 | 5098 | 6571 |
| 211 | global environmental change | 12 | 554 | 59 | 140 |
| 212 | Cognitive Science | 17 | 549 | 241 | 650 |
| 213 | Cardiovascular diseases | 6 | 543 | 761 | 259 |
| 214 | national security | 26 | 541 | 3 | 3 |
| 215 | Agriculture | 19 | 526 | 254 | 541 |
| 216 | refugees | 21 | 524 | 7 | 10 |
| 217 | crime | 32 | 516 | 34 | 86 |
| 218 | Randomized Controlled Trials | 22 | 512 | 93 | 100 |
| 219 | Group decision making | 16 | 511 | 31 | 44 |
| 220 | Economic Theory | 15 | 509 | 4 | 6 |
| 221 | Public Choice | 15 | 507 | 30 | 40 |
| 222 | Communication and Culture | 22 | 506 | 4 | 6 |
| 223 | Ethnic Conflict | 16 | 501 | 8 | 16 |
| 223 | forced migration | 16 | 501 | 8 | 16 |
| 225 | Bioengineering | 9 | 494 | 4363 | 4889 |
| 226 | Geophysics | 9 | 490 | 2401 | 1889 |
| 226 | ecosystem | 2 | 490 | 1721 | 515 |
| 228 | Neuropsychology | 13 | 488 | 1277 | 1353 |
| 228 | Food | 13 | 488 | 1437 | 1592 |
| 230 | Political Parties | 15 | 486 | 2 | 2 |
| 231 | Archaeology | 11 | 485 | 442 | 296 |
| 232 | environmental protection | 12 | 484 | 1374 | 1609 |
| 233 | Chemistry | 6 | 480 | 24557 | 17450 |
| 234 | Biogeography | 1 | 475 | 1776 | 482 |
| 234 | poverty | 18 | 475 | 11 | 29 |
| 236 | Educational Psychology | 8 | 474 | 624 | 487 |
| 237 | Regional Economics | 15 | 470 | 19 | 33 |
| 238 | History | 157 | 469 | 2 | 5 |
| 238 | System analysis | 16 | 469 | 518 | 573 |
| 240 | Genetics | 8 | 464 | 4992 | 5820 |
| 241 | foreign exchange | 7 | 463 | 32 | 25 |
| 242 | Social History | 12 | 455 | 21 | 15 |
| 243 | Systems Theory | 10 | 454 | 14 | 4 |
| 244 | Africa | 32 | 447 | 52 | 95 |
| 245 | Politics | 23 | 446 | 2 | 15 |
| 246 | Criticism | 16 | 443 | 6 | 2 |
| 247 | Medical Ethics | 21 | 440 | 77 | 98 |
| 248 | Socialism | 11 | 438 | 4 | 4 |
| 249 | Nonprofit organizations | 15 | 435 | 3 | 7 |
| 250 | Multivariate Analysis | 11 | 431 | 77 | 67 |
| 251 | Artificial Intelligence | 16 | 428 | 1453 | 2202 |
| 252 | antibiotics | 2 | 423 | 208 | 25 |
| 253 | Happiness | 7 | 422 | 51 | 45 |
| 253 | government | 18 | 422 | 42 | 55 |
| 253 | planning | 25 | 422 | 7 | 29 |
| 256 | Risk assessment | 12 | 418 | 38 | 32 |
| 256 | Feminist theory | 22 | 418 | 5 | 3 |
| 256 | Health Risk Assessment | 12 | 418 | 31 | 26 |
| 259 | Democracy | 27 | 415 | 3 | 8 |
| 260 | Organizational change | 9 | 413 | 31 | 26 |
| 261 | income distribution | 17 | 412 | 3 | 30 |
| 262 | Cognitive neuroscience | 7 | 409 | 639 | 730 |
| 263 | England | 23 | 407 | 7 | 4 |
| 264 | Stochastic Processes | 17 | 398 | 75 | 80 |
| 264 | Water | 8 | 398 | 1597 | 1969 |
| 264 | Cognition | 12 | 398 | 806 | 968 |
| 267 | feeding behavior | 10 | 397 | 241 | 279 |
| 267 | Appetite | 10 | 397 | 168 | 224 |
| 269 | Pharmacology | 19 | 396 | 4456 | 7207 |
| 270 | Rural Development | 9 | 395 | 68 | 84 |
| 271 | Post-traumatic stress disorder | 4 | 388 | 656 | 315 |
| 272 | environmental pollution | 8 | 385 | 4052 | 3877 |
| 273 | economic conditions | 26 | 383 | 13 | 112 |
| 274 | Neurology | 5 | 379 | 14187 | 11472 |
| 275 | Health risk communication | 10 | 375 | 5 | 4 |
| 276 | War | 22 | 373 | 7 | 12 |
| 277 | Environmental Management | 12 | 369 | 1015 | 2027 |
| 278 | Environmentalism | 11 | 364 | 8 | 29 |
| 279 | Medical Technology | 7 | 362 | 393 | 388 |
| 280 | Public Health Administration | 13 | 357 | 20 | 10 |
| 281 | Therapeutics | 17 | 351 | 427 | 1429 |
| 282 | Hydrology | 6 | 347 | 1695 | 1145 |
| 283 | Economic Thought | 14 | 346 | 10 | 113 |
| 284 | Obstetrics | 8 | 341 | 1944 | 1575 |
| 285 | Labor Economics | 14 | 338 | 13 | 40 |
| 285 | Water quality management | 7 | 338 | 807 | 484 |
| 285 | probabilities | 16 | 338 | 418 | 312 |
| 288 | Bioethics | 11 | 337 | 145 | 94 |
| 289 | Conservation Biology | 5 | 335 | 594 | 495 |
| 290 | Wildlife conservation | 4 | 331 | 725 | 542 |
| 291 | Land use | 13 | 329 | 107 | 286 |
| 292 | Birth control | 16 | 328 | 40 | 121 |
| 293 | Learning | 8 | 327 | 763 | 747 |
| 294 | Developmental Psychology | 10 | 324 | 361 | 567 |
| 295 | Central Asia | 14 | 322 | 3 | 6 |
| 295 | biological evolution | 8 | 322 | 1486 | 2273 |
| 297 | organizational effectiveness | 10 | 320 | 17 | 23 |
| 298 | Geopolitics | 16 | 314 | 5 | 14 |
| 299 | Research Design | 10 | 313 | 292 | 465 |
| 299 | Financial management | 12 | 313 | 24 | 125 |
| 301 | Comparative Law | 11 | 310 | 19 | 2 |
| 302 | health behavior | 6 | 309 | 504 | 368 |
| 302 | Soviet Union | 19 | 309 | 24 | 21 |
| 304 | Risk | 14 | 304 | 33 | 174 |
| 305 | Health | 8 | 302 | 1222 | 1243 |
| 306 | Linguistics | 6 | 300 | 497 | 359 |
| 306 | Psycholinguistics | 5 | 300 | 675 | 498 |
| 308 | Knowledge | 35 | 296 | 24 | 109 |
| 309 | civil society | 17 | 295 | 2 | 2 |
| 309 | Industrial Policy | 12 | 295 | 39 | 89 |
| 311 | deviant behavior | 20 | 292 | 8 | 25 |
| 312 | technology transfer | 5 | 290 | 29 | 30 |
| 313 | Eurasia | 11 | 289 | 4 | 4 |
| 314 | Intelligence | 2 | 288 | 278 | 103 |
| 315 | Communication in politics | 7 | 285 | 6 | 29 |
| 316 | Strategic planning | 8 | 283 | 41 | 68 |
| 316 | women | 15 | 283 | 16 | 44 |
| 318 | Reproductive health | 15 | 279 | 101 | 238 |
| 318 | older people | 29 | 279 | 94 | 473 |
| 320 | Juvenile delinquency | 20 | 278 | 16 | 64 |
| 321 | corrections | 15 | 277 | 6 | 3 |
| 322 | Probability | 14 | 276 | 49 | 196 |
| 323 | Crime prevention | 13 | 275 | 32 | 27 |
| 324 | immigration | 9 | 273 | 2 | 8 |
| 325 | Industrial Sociology | 8 | 272 | 2 | 3 |
| 325 | Eating Disorders | 5 | 272 | 750 | 528 |
| 325 | Flood forecasting | 3 | 272 | 35 | 4 |
| 325 | Feeding and Eating Disorders | 5 | 272 | 715 | 504 |
| 325 | Flood control | 3 | 272 | 78 | 5 |
| 330 | Dynamics | 5 | 269 | 1017 | 322 |
| 331 | Social Security | 11 | 266 | 3 | 2 |
| 332 | Ethics | 23 | 264 | 65 | 207 |
| 332 | drug therapy | 12 | 264 | 1083 | 2140 |
| 332 | migration policy | 6 | 264 | 5 | 8 |
| 332 | Asylum seeker | 6 | 264 | 3 | 8 |
| 336 | Family Law | 3 | 263 | 12 | 1 |
| 337 | Discourse Analysis | 9 | 262 | 23 | 43 |
| 337 | psychotherapy | 4 | 262 | 1121 | 894 |
| 339 | insurance | 10 | 261 | 71 | 67 |
| 340 | Cold War | 28 | 260 | 2 | 3 |
| 341 | Oncology | 5 | 247 | 3185 | 4483 |
| 342 | Humanities | 26 | 239 | 16 | 106 |
| 342 | Feminist criticism | 11 | 239 | 3 | 3 |
| 342 | Financial Institutions | 7 | 239 | 20 | 26 |
| 342 | Germany | 26 | 239 | 5 | 10 |
| 346 | Tourism | 7 | 238 | 319 | 515 |
| 346 | Gender identity | 9 | 238 | 12 | 6 |
| 346 | cross-cultural comparison | 8 | 238 | 88 | 95 |
| 349 | police | 15 | 235 | 41 | 52 |
| 350 | Social Choice Theory | 10 | 234 | 32 | 33 |
| 351 | Cross-Cultural Studies | 7 | 232 | 110 | 108 |
| 352 | Urban Areas | 6 | 227 | 29 | 28 |
| 353 | Architecture | 6 | 225 | 144 | 79 |
| 354 | Democratization | 8 | 222 | 10 | 21 |
| 355 | Astronomy | 2 | 221 | 4030 | 2366 |
| 356 | construction | 5 | 220 | 51 | 51 |
| 357 | Data Mining | 12 | 219 | 108 | 881 |
| 358 | Toxicology | 6 | 218 | 7869 | 7965 |
| 358 | Women's health | 13 | 218 | 321 | 674 |
| 360 | Statistical physics | 6 | 217 | 3046 | 2631 |
| 361 | International Law | 26 | 215 | 17 | 21 |
| 362 | Human-Computer Interaction | 12 | 213 | 141 | 602 |
| 362 | Housing | 13 | 213 | 30 | 173 |
| 364 | Palliative Care | 4 | 210 | 653 | 375 |
| 364 | Forecasting | 10 | 210 | 34 | 133 |
| 364 | Urbanization | 7 | 210 | 3 | 19 |
| 367 | Cybernetics | 2 | 209 | 2711 | 1488 |
| 368 | innovation | 3 | 206 | 149 | 143 |
| 369 | Chronic diseases | 8 | 205 | 289 | 750 |
| 370 | Biochemical Engineering | 4 | 204 | 5908 | 7143 |
| 370 | Mathematical Physics | 6 | 204 | 1990 | 1405 |
| 372 | Latin America | 38 | 203 | 5 | 29 |
| 372 | Hospitals | 6 | 203 | 150 | 159 |
| 372 | Spine | 1 | 203 | 1391 | 509 |
| 375 | Technological Innovations | 5 | 202 | 301 | 332 |
| 375 | Pregnancy | 4 | 202 | 713 | 461 |
| 377 | Peasants | 8 | 201 | 4 | 19 |
| 377 | Psychophysiology | 7 | 201 | 3384 | 5138 |
| 379 | Long-Term Care | 6 | 200 | 246 | 359 |
| 379 | Long-term care facilities | 6 | 200 | 246 | 359 |
| 381 | Environmental Psychology | 8 | 199 | 40 | 229 |
| 381 | community development | 12 | 199 | 32 | 160 |
| 381 | Elderly | 20 | 199 | 62 | 184 |
| 384 | civil rights | 19 | 197 | 9 | 53 |
| 384 | Economic Integration | 17 | 197 | 2 | 2 |
| 386 | Ergonomics | 3 | 194 | 765 | 370 |
| 387 | rehabilitation | 11 | 193 | 865 | 2191 |
| 388 | Scandinavia | 6 | 192 | 260 | 211 |
| 389 | Patient education | 4 | 191 | 402 | 398 |
| 389 | counseling | 4 | 191 | 1172 | 811 |
| 391 | health and race | 4 | 187 | 46 | 43 |
| 391 | Marine resources | 5 | 187 | 130 | 149 |
| 393 | financial markets | 8 | 186 | 5 | 2 |
| 394 | strategy | 18 | 184 | 6 | 13 |
| 395 | Computational Linguistics | 4 | 180 | 124 | 42 |
| 395 | big data | 5 | 180 | 131 | 183 |
| 397 | Audiology | 1 | 179 | 2125 | 647 |
| 397 | Computational Biology | 6 | 179 | 2945 | 4121 |
| 397 | Hearing | 1 | 179 | 1360 | 253 |
| 400 | Analytical Chemistry | 1 | 178 | 17118 | 7062 |
| 400 | Diabetes mellitus | 5 | 178 | 2636 | 4265 |
| 400 | Diabetes | 5 | 178 | 2881 | 4428 |
| 403 | Socialization | 1 | 177 | 803 | 269 |
| 403 | role | 1 | 177 | 667 | 248 |
| 405 | income | 7 | 176 | 6 | 14 |
| 405 | Input-output analysis | 7 | 176 | 17 | 51 |
| 405 | Wealth | 7 | 176 | 6 | 14 |
| 408 | Contraception | 8 | 173 | 220 | 355 |
| 409 | Obesity | 7 | 172 | 1886 | 3429 |
| 410 | Developmental Biology | 2 | 170 | 6057 | 5385 |
| 411 | Soil Science | 2 | 169 | 2611 | 1515 |
| 411 | mental health promotion | 7 | 169 | 50 | 77 |
| 413 | Planets | 4 | 168 | 1361 | 1646 |
| 414 | Ideology | 13 | 166 | 2 | 9 |
| 414 | population geography | 9 | 166 | 42 | 149 |
| 416 | Agricultural Ecology | 1 | 164 | 2052 | 1006 |
| 417 | Social Networks | 6 | 163 | 41 | 132 |
| 417 | regional security | 9 | 163 | 2 | 6 |
| 417 | regional cooperation | 9 | 163 | 2 | 6 |
| 420 | Structuralism | 5 | 162 | 40 | 110 |
| 421 | Distance Education | 5 | 157 | 51 | 89 |
| 421 | preventive medicine | 5 | 157 | 816 | 1323 |
| 421 | Substance Abuse | 5 | 157 | 1340 | 1306 |
| 424 | Investment analysis | 6 | 156 | 180 | 213 |
| 424 | Recycling | 3 | 156 | 345 | 682 |
| 426 | Combinatorial analysis | 16 | 154 | 303 | 363 |
| 427 | Urban Planning | 7 | 153 | 64 | 211 |
| 427 | women's rights | 8 | 153 | 15 | 35 |
| 427 | Developed countries | 7 | 153 | 18 | 71 |
| 430 | Experimental Psychology | 3 | 149 | 455 | 357 |
| 430 | punishment | 9 | 149 | 3 | 3 |
| 432 | Urban Geography | 10 | 145 | 25 | 91 |
| 433 | Communism | 14 | 144 | 3 | 14 |
| 434 | energy conservation | 3 | 143 | 2701 | 3120 |
| 435 | Clinical Psychology | 8 | 142 | 544 | 1189 |
| 436 | Organizational Sociology | 7 | 141 | 10 | 43 |
| 436 | Korea | 1 | 141 | 761 | 78 |
| 438 | psychopathology | 6 | 139 | 162 | 308 |
| 439 | Criminal Law | 5 | 137 | 101 | 131 |
| 439 | Quantitative Research | 5 | 137 | 104 | 179 |
| 441 | Prisons | 8 | 136 | 24 | 28 |
| 442 | Criminal psychology | 9 | 135 | 211 | 430 |
| 442 | Mineral resources | 7 | 135 | 116 | 313 |
| 444 | mental health policy | 3 | 133 | 145 | 120 |
| 444 | child abuse | 5 | 133 | 467 | 790 |
| 446 | Health promotion | 7 | 132 | 581 | 1129 |
| 446 | Liposomes | 2 | 132 | 590 | 387 |
| 446 | Lipid bilayers | 2 | 132 | 465 | 326 |
| 446 | India | 20 | 132 | 56 | 146 |
| 446 | environmental issues | 2 | 132 | 228 | 148 |
| 451 | drug control | 5 | 131 | 168 | 231 |
| 452 | alcoholism | 9 | 130 | 882 | 1925 |
| 453 | Higher Education | 7 | 129 | 96 | 206 |
| 453 | Systems Analysis | 7 | 129 | 298 | 455 |
| 455 | Forensic Psychiatry | 6 | 128 | 297 | 360 |
| 455 | Middle East | 16 | 128 | 68 | 206 |
| 457 | Environmental Law | 7 | 127 | 490 | 1913 |
| 458 | consumers | 5 | 125 | 28 | 86 |
| 458 | Capitalism | 9 | 125 | 4 | 36 |
| 458 | Biodiversity | 2 | 125 | 3645 | 2848 |
| 461 | Atmospheric Physics | 3 | 124 | 1642 | 1791 |
| 461 | Environmental monitoring | 3 | 124 | 6941 | 7618 |
| 461 | Nuclear non-proliferation | 4 | 124 | 31 | 75 |
| 464 | Religion | 9 | 123 | 90 | 143 |
| 465 | educational planning | 6 | 122 | 82 | 249 |
| 465 | nation-building | 8 | 122 | 2 | 2 |
| 467 | Geographic information systems | 4 | 121 | 601 | 499 |
| 467 | Methodology | 8 | 121 | 47 | 119 |
| 469 | Endocrinology | 3 | 120 | 8323 | 10015 |
| 470 | Game Theory | 8 | 119 | 167 | 273 |
| 470 | internet | 6 | 119 | 903 | 1465 |
| 472 | drug addiction | 8 | 118 | 666 | 1585 |
| 473 | Molecular structure | 1 | 117 | 7597 | 3757 |
| 474 | Southeast Asia | 8 | 116 | 36 | 53 |
| 475 | Social problems | 6 | 112 | 81 | 245 |
| 475 | Vaccines | 8 | 112 | 880 | 2172 |
| 477 | Sexual health | 8 | 110 | 256 | 679 |
| 477 | land tenure | 4 | 110 | 8 | 19 |
| 477 | Land reform | 4 | 110 | 8 | 19 |
| 477 | Allergy | 2 | 110 | 2478 | 3670 |
| 481 | water supply | 1 | 109 | 1952 | 1260 |
| 481 | Israel | 6 | 109 | 58 | 27 |
| 483 | Schizophrenia | 7 | 108 | 787 | 1903 |
| 484 | Online social networks | 4 | 107 | 92 | 143 |
| 484 | families | 9 | 107 | 129 | 364 |
| 484 | Insects | 1 | 107 | 2586 | 1113 |
| 484 | Jews | 11 | 107 | 28 | 11 |
| 488 | Computational Complexity | 1 | 106 | 2004 | 379 |
| 489 | consumer behavior | 6 | 103 | 39 | 214 |
| 489 | Intellectual disability | 8 | 103 | 243 | 677 |
| 491 | Hydrogeology | 1 | 102 | 947 | 396 |
| 492 | Critical Discourse Analysis | 3 | 101 | 12 | 20 |
| 492 | tests | 3 | 101 | 38 | 101 |
| 494 | computer networks | 4 | 100 | 2170 | 2352 |
| 495 | Psychiatric Nursing | 1 | 99 | 1364 | 442 |
| 495 | Educational Technology | 6 | 99 | 523 | 1176 |
| 495 | cooperation | 5 | 99 | 4 | 5 |
| 498 | Creativity | 2 | 98 | 175 | 149 |
| 499 | Coastal zone management | 4 | 96 | 183 | 347 |
| 500 | Emotions | 6 | 95 | 288 | 726 |
| 501 | Sovereignty | 5 | 93 | 23 | 73 |
| 501 | Reproduction | 3 | 93 | 4327 | 4877 |
| 503 | United Nations | 2 | 92 | 13 | 5 |
| 504 | Food Policy | 3 | 91 | 183 | 319 |
| 504 | Venture Capital | 3 | 91 | 23 | 108 |
| 504 | Biodiversity conservation | 4 | 91 | 1325 | 3082 |
| 504 | agricultural policy | 3 | 91 | 127 | 269 |
| 504 | Research methodology | 4 | 91 | 13 | 73 |
| 504 | ports | 1 | 91 | 261 | 123 |
| 504 | information policy | 5 | 91 | 7 | 6 |
| 511 | Actuarial Science | 6 | 90 | 100 | 169 |
| 511 | soil conservation | 2 | 90 | 761 | 644 |
| 511 | land degradation | 2 | 90 | 379 | 383 |
| 511 | degradation | 2 | 90 | 379 | 383 |
| 515 | North America | 3 | 89 | 582 | 588 |
| 515 | pharmaceutical industry | 3 | 89 | 401 | 413 |
| 517 | Physical Geography | 3 | 88 | 263 | 260 |
| 517 | Animal Behavior | 4 | 88 | 2657 | 4842 |
| 517 | mental processes | 2 | 88 | 586 | 341 |
| 520 | Psychopharmacology | 3 | 87 | 2861 | 4571 |
| 520 | Teaching | 3 | 87 | 1468 | 1567 |
| 520 | Growth | 1 | 87 | 4041 | 3890 |
| 520 | Capital asset pricing model | 3 | 87 | 24 | 29 |
| 524 | Environmental Engineering | 1 | 86 | 13147 | 8791 |
| 524 | Evolution | 4 | 86 | 2260 | 4285 |
| 526 | Food preferences | 2 | 85 | 334 | 351 |
| 527 | Leadership | 5 | 84 | 36 | 209 |
| 528 | Surgery | 6 | 83 | 1362 | 4528 |
| 528 | Cultural Anthropology | 8 | 83 | 2 | 16 |
| 528 | violence | 4 | 83 | 488 | 943 |
| 531 | Infertility | 2 | 82 | 1590 | 2047 |
| 531 | Family | 7 | 82 | 335 | 889 |
| 531 | fertility | 2 | 82 | 1734 | 2163 |
| 534 | Ophthalmology | 2 | 81 | 3842 | 3730 |
| 535 | telemarketing | 1 | 80 | 83 | 58 |
| 536 | Chemotherapy | 4 | 79 | 1071 | 2431 |
| 536 | Wireless Communication Systems | 3 | 79 | 2713 | 2625 |
| 536 | France | 9 | 79 | 9 | 39 |
| 539 | Malaria | 4 | 78 | 507 | 910 |
| 539 | drugs | 5 | 78 | 1984 | 4226 |
| 539 | Consciousness | 5 | 78 | 203 | 454 |
| 542 | Foreign relations | 4 | 77 | 28 | 6 |
| 542 | environmental exposure | 3 | 77 | 2223 | 3649 |
| 544 | East Asia | 8 | 76 | 96 | 214 |
| 544 | Transport | 32 | 76 | 9 | 537 |
| 544 | chronic disease | 2 | 76 | 332 | 364 |
| 547 | Digital Media | 3 | 75 | 65 | 116 |
| 547 | Tropical Medicine | 4 | 75 | 1335 | 1990 |
| 549 | Computer Science | 13 | 74 | 321 | 1861 |
| 549 | data collection | 6 | 74 | 150 | 1662 |
| 549 | Money | 7 | 74 | 25 | 235 |
| 552 | thinking | 3 | 73 | 151 | 305 |
| 553 | Constitutional Law | 7 | 72 | 14 | 11 |
| 553 | constitutional courts | 7 | 72 | 10 | 10 |
| 555 | hospice care | 2 | 71 | 676 | 479 |
| 555 | corporate culture | 4 | 71 | 14 | 53 |
| 555 | Youth | 5 | 71 | 263 | 957 |
| 558 | Learning disabilities | 7 | 69 | 231 | 754 |
| 558 | Ethology | 2 | 69 | 2986 | 4431 |
| 558 | Urban Anthropology | 6 | 69 | 3 | 25 |
| 558 | Vision | 1 | 69 | 1528 | 1277 |
| 558 | evaluation | 4 | 69 | 33 | 71 |
| 563 | Systems Engineering | 4 | 68 | 2308 | 3434 |
| 563 | Federal government | 6 | 68 | 8 | 32 |
| 565 | Evolutionary Psychology | 3 | 67 | 100 | 152 |
| 566 | Public Relations | 9 | 66 | 46 | 204 |
| 566 | Occupational Health | 3 | 66 | 906 | 1230 |
| 566 | Critical theory | 4 | 66 | 21 | 45 |
| 569 | Industrial Organization | 4 | 65 | 101 | 217 |
| 569 | Religion and Politics | 3 | 65 | 3 | 3 |
| 571 | Brain | 3 | 64 | 7491 | 10782 |
| 572 | Arab-Israeli Conflict | 3 | 63 | 19 | 7 |
| 572 | sex crimes | 2 | 63 | 203 | 221 |
| 572 | Ireland | 5 | 63 | 67 | 66 |
| 575 | Automation | 4 | 62 | 2756 | 4597 |
| 575 | Production Management | 3 | 62 | 634 | 1368 |
| 577 | Environmental Toxicology | 3 | 61 | 3661 | 7198 |
| 577 | Securities | 3 | 61 | 77 | 152 |
| 579 | Microbiology | 3 | 60 | 18544 | 28150 |
| 579 | Subjectivity | 2 | 60 | 10 | 13 |
| 579 | Public opinion | 4 | 60 | 204 | 569 |
| 579 | Human trafficking | 5 | 60 | 4 | 7 |
| 579 | school-to-work transition | 2 | 60 | 44 | 39 |
| 584 | Neuropharmacology | 1 | 59 | 1600 | 1323 |
| 584 | population policy | 5 | 59 | 51 | 148 |
| 586 | Clinical Immunology | 1 | 58 | 3626 | 3069 |
| 586 | Labor Movement | 5 | 58 | 10 | 19 |
| 588 | Nervous system | 2 | 57 | 7546 | 10541 |
| 589 | Drug design | 1 | 56 | 4884 | 4005 |
| 590 | Sports Psychology | 2 | 55 | 11 | 37 |
| 590 | Sociobiology | 4 | 55 | 123 | 301 |
| 590 | Cerebral cortex | 1 | 55 | 3036 | 3115 |
| 593 | Nuclear Energy | 3 | 54 | 604 | 688 |
| 593 | Regionalism | 5 | 54 | 34 | 175 |
| 595 | Telecommunication Systems | 1 | 53 | 3242 | 1819 |
| 595 | Social Movements | 6 | 53 | 4 | 71 |
| 595 | Collective behavior | 4 | 53 | 10 | 80 |
| 595 | World Bank | 1 | 53 | 37 | 52 |
| 599 | Open Access Publishing | 3 | 52 | 2 | 6 |
| 599 | Human evolution | 1 | 52 | 821 | 906 |
| 599 | Communication in medicine | 2 | 52 | 404 | 642 |
| 599 | recreation | 2 | 52 | 512 | 516 |
| 603 | Production Engineering | 2 | 51 | 2757 | 2721 |
| 603 | Law and Economics | 6 | 51 | 82 | 194 |
| 603 | Executive Power | 6 | 51 | 1 | 6 |
| 603 | behavior therapy | 1 | 51 | 1324 | 1078 |
| 603 | slavery | 2 | 51 | 45 | 39 |
| 603 | Online journalism | 1 | 51 | 129 | 122 |
| 609 | Structural Equation Modeling | 4 | 50 | 14 | 112 |
| 610 | Nutrition | 4 | 49 | 8055 | 17519 |
| 610 | Atmospheric Chemistry | 1 | 49 | 1841 | 2090 |
| 610 | Biogeochemical cycles | 1 | 49 | 646 | 1047 |
| 610 | environmental indicators | 1 | 49 | 1965 | 2042 |
| 610 | healthcare disparities | 2 | 49 | 635 | 814 |
| 610 | Travel | 3 | 49 | 415 | 759 |
| 610 | intergroup relations | 1 | 49 | 10 | 22 |
| 610 | Diet | 3 | 49 | 3343 | 7926 |
| 618 | complementary therapies | 4 | 48 | 1098 | 3907 |
| 618 | Communist countries | 6 | 48 | 16 | 59 |
| 620 | civil war | 7 | 47 | 3 | 14 |
| 621 | Behavioral research | 3 | 46 | 400 | 595 |
| 621 | Solitons | 2 | 46 | 1394 | 1615 |
| 621 | Fractals | 2 | 46 | 1399 | 1616 |
| 621 | Chaos | 2 | 46 | 1394 | 1615 |
| 621 | Lipids | 1 | 46 | 4386 | 4929 |
| 621 | arthritis | 1 | 46 | 2576 | 3059 |
| 621 | Criminal behavior | 4 | 46 | 69 | 159 |
| 628 | Pharmacy | 4 | 45 | 2915 | 6750 |
| 628 | Database Management | 1 | 45 | 810 | 693 |
| 628 | Engineering Ethics | 1 | 45 | 310 | 269 |
| 628 | Alternative Medicine | 3 | 45 | 1450 | 4041 |
| 628 | Climate change | 2 | 45 | 1274 | 3257 |
| 628 | Corporate Social Responsibility | 1 | 45 | 226 | 340 |
| 628 | environmental auditing | 1 | 45 | 229 | 340 |
| 628 | arms control | 2 | 45 | 38 | 44 |
| 628 | Professional ethics | 1 | 45 | 426 | 330 |
| 628 | Pharmacy management | 4 | 45 | 211 | 388 |
| 628 | land | 3 | 45 | 30 | 28 |
| 639 | Clinical Pharmacology | 2 | 44 | 2873 | 4189 |
| 639 | labor | 5 | 44 | 11 | 69 |
| 641 | Yugoslavia | 3 | 43 | 52 | 19 |
| 642 | Geriatric Nursing | 2 | 42 | 490 | 426 |
| 642 | Cell Biology | 1 | 42 | 24733 | 26741 |
| 642 | Collective security | 1 | 42 | 23 | 6 |
| 642 | dispute settlement | 1 | 42 | 28 | 7 |
| 642 | Humanitarian Law | 1 | 42 | 29 | 6 |
| 642 | fame | 3 | 42 | 12 | 12 |
| 642 | Primates | 1 | 42 | 1632 | 1423 |
| 649 | Gender Studies | 2 | 41 | 411 | 728 |
| 649 | Queer Studies | 2 | 41 | 205 | 489 |
| 649 | Critical thinking | 3 | 41 | 6 | 5 |
| 649 | Social Issues | 2 | 41 | 213 | 361 |
| 649 | Sea | 31 | 41 | 9 | 618 |
| 649 | Fishery resources | 31 | 41 | 9 | 667 |
| 649 | homosexuality | 2 | 41 | 400 | 754 |
| 649 | Fisheries | 31 | 41 | 88 | 2283 |
| 657 | Mobile Computing | 2 | 40 | 1178 | 1497 |
| 657 | Combustion | 1 | 40 | 2168 | 1903 |
| 657 | Psychoanalysis | 2 | 40 | 236 | 183 |
| 657 | occupational diseases | 2 | 40 | 1102 | 2231 |
| 657 | Evolutionary Computation | 1 | 40 | 746 | 1006 |
| 657 | Swarm Intelligence | 1 | 40 | 398 | 472 |
| 657 | Entropy | 2 | 40 | 1465 | 1515 |
| 657 | Lawyers | 2 | 40 | 33 | 15 |
| 657 | Borderlands | 3 | 40 | 25 | 32 |
| 666 | Information Systems | 2 | 39 | 1546 | 2625 |
| 666 | Biometrics | 4 | 39 | 1342 | 2483 |
| 668 | Logic | 3 | 38 | 361 | 401 |
| 668 | Program Evaluation | 1 | 38 | 124 | 107 |
| 668 | Urban Renewal | 5 | 38 | 21 | 61 |
| 668 | Leisure | 1 | 38 | 282 | 325 |
| 672 | Restorative justice | 2 | 37 | 155 | 161 |
| 672 | Social Entrepreneurship | 2 | 37 | 15 | 76 |
| 672 | patient care management | 2 | 37 | 2 | 2 |
| 672 | pollutants | 1 | 37 | 4940 | 5960 |
| 672 | Environmental pollutants | 1 | 37 | 6910 | 7631 |
| 672 | Patient Care | 2 | 37 | 2 | 2 |
| 672 | Cannabis | 1 | 37 | 155 | 162 |
| 672 | cannabinoids | 1 | 37 | 154 | 156 |
| 680 | Eutrophication | 1 | 36 | 1878 | 3302 |
| 680 | working class | 2 | 36 | 19 | 52 |
| 680 | Urban society | 3 | 36 | 23 | 44 |
| 680 | Conflict of Laws | 3 | 36 | 28 | 21 |
| 684 | Transportation Engineering | 1 | 35 | 549 | 575 |
| 684 | housing policy | 3 | 35 | 23 | 108 |
| 684 | terrorism | 6 | 35 | 40 | 292 |
| 684 | motivation | 2 | 35 | 246 | 461 |
| 684 | rare diseases | 3 | 35 | 558 | 2045 |
| 689 | Heart Failure | 3 | 34 | 169 | 827 |
| 690 | health workforce | 1 | 33 | 286 | 451 |
| 690 | Critical Legal Studies | 11 | 33 | 6 | 154 |
| 690 | Crisis management | 3 | 33 | 24 | 116 |
| 690 | Environmental risk assessment | 2 | 33 | 204 | 502 |
| 690 | Communication in organizations | 6 | 33 | 1 | 1 |
| 695 | Sustainable Engineering | 1 | 32 | 4531 | 5492 |
| 695 | Social Ethics | 5 | 32 | 45 | 185 |
| 695 | communities | 1 | 32 | 7 | 5 |
| 695 | social aspects | 2 | 32 | 59 | 79 |
| 699 | Banking | 3 | 31 | 2 | 16 |
| 699 | social justice | 6 | 31 | 42 | 268 |
| 699 | Citizenship | 6 | 31 | 7 | 175 |
| 699 | Emotion | 1 | 31 | 301 | 402 |
| 699 | Capital market | 2 | 31 | 175 | 302 |
| 699 | Digital Television | 2 | 31 | 2 | 1 |
| 699 | Development Assistance | 3 | 31 | 2 | 16 |
| 706 | Language Disorders | 2 | 30 | 1131 | 1608 |
| 706 | Multicultural Education | 1 | 30 | 461 | 404 |
| 706 | speech therapy | 2 | 30 | 310 | 494 |
| 706 | Speech Disorders | 2 | 30 | 1427 | 2297 |
| 706 | Mortgages | 2 | 30 | 76 | 173 |
| 706 | Communication Disorders | 2 | 30 | 193 | 345 |
| 706 | Building | 1 | 30 | 872 | 796 |
| 713 | Public Spaces | 3 | 29 | 2 | 3 |
| 713 | Political Ethics | 5 | 29 | 3 | 20 |
| 713 | personal space | 3 | 29 | 1 | 2 |
| 713 | Uncertainty | 2 | 29 | 126 | 269 |
| 717 | Mathematics Education | 1 | 28 | 897 | 569 |
| 717 | Information Retrieval | 2 | 28 | 284 | 673 |
| 717 | drug resistance | 2 | 28 | 652 | 1964 |
| 717 | society | 3 | 28 | 23 | 127 |
| 717 | Groundwater | 1 | 28 | 881 | 1156 |
| 717 | cultural pluralism | 3 | 28 | 150 | 499 |
| 723 | Antitrust Law | 5 | 27 | 62 | 91 |
| 723 | economic forecasting | 6 | 27 | 42 | 475 |
| 723 | Decision Support Systems | 5 | 27 | 7 | 54 |
| 723 | Sports | 4 | 27 | 1584 | 5054 |
| 723 | Condensed Matter | 2 | 27 | 5166 | 7386 |
| 723 | Sun | 1 | 27 | 381 | 377 |
| 723 | Solar System | 1 | 27 | 878 | 1001 |
| 730 | Graph Theory | 6 | 26 | 429 | 839 |
| 730 | Manufacturing Processes | 1 | 26 | 5167 | 5392 |
| 730 | Infection control | 1 | 26 | 529 | 874 |
| 730 | Maternal health services | 1 | 26 | 956 | 1204 |
| 730 | Feminist Jurisprudence | 2 | 26 | 38 | 56 |
| 730 | Sexuality | 3 | 26 | 174 | 616 |
| 730 | primary prevention | 1 | 26 | 854 | 1135 |
| 730 | Education history | 2 | 26 | 59 | 52 |
| 730 | Endocrine system | 1 | 26 | 1197 | 860 |
| 730 | Human biology | 4 | 26 | 433 | 1571 |
| 740 | Climatology | 1 | 25 | 3936 | 4990 |
| 740 | Lung Transplantation | 3 | 25 | 422 | 1260 |
| 740 | Flexible manufacturing systems | 1 | 25 | 609 | 879 |
| 740 | Food service management | 2 | 25 | 120 | 415 |
| 740 | Heart transplantation | 3 | 25 | 422 | 1260 |
| 740 | prejudices | 3 | 25 | 9 | 24 |
| 740 | Anti-Semitism | 3 | 25 | 9 | 8 |
| 740 | disease outbreaks | 2 | 25 | 708 | 2021 |
| 740 | Epidemics | 2 | 25 | 682 | 1998 |
| 740 | discrimination | 3 | 25 | 9 | 8 |
| 750 | Biopharmaceutics | 3 | 24 | 1135 | 4419 |
| 750 | Agricultural Economics | 1 | 24 | 94 | 117 |
| 750 | Forensic Psychology | 4 | 24 | 222 | 795 |
| 750 | Legislative Power | 5 | 24 | 5 | 47 |
| 750 | organized crime | 3 | 24 | 33 | 120 |
| 750 | individual differences | 2 | 24 | 235 | 637 |
| 750 | Christianity | 2 | 24 | 59 | 28 |
| 750 | Agricultural systems | 1 | 24 | 412 | 732 |
| 758 | Pharmaceutical Chemistry | 2 | 23 | 10480 | 17994 |
| 758 | Heat Exchangers | 1 | 23 | 2341 | 3072 |
| 758 | Moral Education | 1 | 23 | 142 | 150 |
| 758 | gene therapy | 2 | 23 | 2402 | 6703 |
| 758 | interfaith relations | 1 | 23 | 35 | 29 |
| 758 | Developmental Disabilities | 3 | 23 | 1249 | 3730 |
| 758 | Islam | 5 | 23 | 41 | 261 |
| 758 | Perception | 8 | 23 | 1705 | 9761 |
| 766 | Health Information Management | 3 | 22 | 67 | 578 |
| 766 | Pharmacokinetics | 1 | 22 | 2246 | 3524 |
| 766 | Positive Psychology | 1 | 22 | 268 | 497 |
| 766 | hazard mitigation | 2 | 22 | 898 | 2306 |
| 766 | infection | 2 | 22 | 2975 | 6493 |
| 766 | biomedicine | 1 | 22 | 1393 | 2539 |
| 766 | mathematical analysis | 9 | 22 | 1539 | 3546 |
| 766 | natural disasters | 2 | 22 | 1408 | 3379 |
| 766 | sexual behavior | 4 | 22 | 546 | 2456 |
| 775 | Comparative Education | 3 | 21 | 79 | 275 |
| 775 | Bioinformatics | 2 | 21 | 5367 | 10052 |
| 775 | Religion and Sociology | 2 | 21 | 38 | 81 |
| 775 | Family Therapy | 1 | 21 | 1398 | 1503 |
| 775 | Food Security | 2 | 21 | 104 | 480 |
| 775 | child mental health | 1 | 21 | 944 | 1153 |
| 775 | negotiation | 1 | 21 | 62 | 59 |
| 775 | drug abuse | 2 | 21 | 813 | 1769 |
| 775 | Criminal investigation | 1 | 21 | 311 | 355 |
| 784 | Nursing | 1 | 20 | 3857 | 3961 |
| 784 | Diplomacy | 7 | 20 | 3 | 4 |
| 784 | labor policy | 1 | 20 | 3 | 12 |
| 784 | Transnational organized crime | 2 | 20 | 16 | 78 |
| 784 | Transnational Crime | 2 | 20 | 16 | 78 |
| 784 | Personality Assessment | 2 | 20 | 535 | 1181 |
| 784 | Trust | 1 | 20 | 19 | 47 |
| 791 | Genetic engineering | 3 | 19 | 3811 | 13010 |
| 791 | Intellectual Property | 2 | 19 | 135 | 118 |
| 791 | taxation | 2 | 19 | 153 | 268 |
| 791 | association | 1 | 19 | 18 | 34 |
| 791 | Matroids | 2 | 19 | 257 | 415 |
| 791 | toxicity testing | 1 | 19 | 1427 | 2402 |
| 791 | sports administration | 1 | 19 | 282 | 369 |
| 791 | Organizations | 1 | 19 | 20 | 35 |
| 799 | World History | 2 | 18 | 44 | 28 |
| 799 | Historical Geography | 1 | 18 | 163 | 193 |
| 799 | Historical Sociology | 2 | 18 | 30 | 23 |
| 799 | Knowledge management | 2 | 18 | 169 | 408 |
| 799 | scholarly publishing | 1 | 18 | 99 | 163 |
| 799 | Product life cycle | 1 | 18 | 432 | 807 |
| 799 | green products | 1 | 18 | 371 | 748 |
| 799 | Cancer | 4 | 18 | 9603 | 28396 |
| 799 | Population Dynamics | 2 | 18 | 109 | 322 |
| 808 | Education policy | 1 | 17 | 90 | 172 |
| 808 | School choice | 2 | 17 | 16 | 40 |
| 808 | Applied Ethics | 4 | 17 | 42 | 202 |
| 811 | Environmental Education | 1 | 16 | 441 | 740 |
| 811 | Labor Unions | 6 | 16 | 5 | 166 |
| 811 | Trademarks | 1 | 16 | 86 | 133 |
| 811 | eugenics | 3 | 16 | 474 | 2124 |
| 815 | Cost of illness | 2 | 15 | 29 | 88 |
| 815 | Disease management | 1 | 15 | 158 | 232 |
| 815 | breastfeeding | 1 | 15 | 1150 | 1811 |
| 815 | Migration | 1 | 15 | 124 | 220 |
| 815 | social conflict | 4 | 15 | 47 | 387 |
| 815 | Futures | 2 | 15 | 128 | 341 |
| 815 | drinking water | 2 | 15 | 98 | 297 |
| 815 | human development | 1 | 15 | 1599 | 2591 |
| 815 | genome | 1 | 15 | 6145 | 10321 |
| 815 | hygiene | 2 | 15 | 553 | 1738 |
| 815 | drug evaluation | 1 | 15 | 3334 | 5972 |
| 826 | Geometry | 6 | 14 | 688 | 1465 |
| 826 | Medical Microbiology | 1 | 14 | 7805 | 13314 |
| 826 | Infections | 1 | 14 | 2894 | 5416 |
| 826 | Language and Culture | 1 | 14 | 61 | 90 |
| 826 | Transnational corporations | 2 | 14 | 185 | 546 |
| 826 | Parasitic Diseases | 1 | 14 | 4459 | 7280 |
| 826 | Consumer education | 1 | 14 | 267 | 638 |
| 833 | Anthropological Linguistics | 1 | 13 | 288 | 294 |
| 833 | Logistics | 1 | 13 | 732 | 1194 |
| 833 | Inventory Control | 1 | 13 | 70 | 191 |
| 833 | Geochemistry | 1 | 13 | 4251 | 6336 |
| 833 | Organizational learning | 1 | 13 | 395 | 539 |
| 833 | Justice | 2 | 13 | 1 | 1 |
| 833 | Nonlinear Dynamics | 1 | 13 | 4734 | 6510 |
| 833 | Labor Supply | 1 | 13 | 11 | 30 |
| 833 | Human Capital | 1 | 13 | 172 | 319 |
| 833 | Discrete geometry | 3 | 13 | 208 | 444 |
| 833 | space warfare | 2 | 13 | 2 | 4 |
| 833 | space environment | 2 | 13 | 106 | 288 |
| 833 | agricultural productivity | 1 | 13 | 99 | 197 |
| 833 | Library Science | 3 | 13 | 102 | 673 |
| 847 | Applied Linguistics | 4 | 12 | 134 | 811 |
| 847 | Technology Assessment | 3 | 12 | 72 | 1085 |
| 847 | Indigenous Peoples | 2 | 12 | 49 | 133 |
| 847 | Religion and Culture | 2 | 12 | 205 | 609 |
| 847 | asymmetric warfare | 1 | 12 | 31 | 44 |
| 847 | ethanol | 1 | 12 | 1154 | 2022 |
| 847 | Espionage | 3 | 12 | 20 | 33 |
| 847 | mortality | 2 | 12 | 28 | 121 |
| 847 | death | 2 | 12 | 115 | 554 |
| 847 | econometric models | 3 | 12 | 340 | 1101 |
| 847 | mathematical concepts | 6 | 12 | 111 | 1150 |
| 847 | Bereavement | 2 | 12 | 106 | 432 |
| 859 | Developmental Genetics | 1 | 11 | 1748 | 3504 |
| 859 | Communication Policy | 1 | 11 | 86 | 170 |
| 859 | nutrition policy | 1 | 11 | 56 | 98 |
| 859 | Telecommunication Policy | 1 | 11 | 86 | 170 |
| 859 | Political Culture | 2 | 11 | 9 | 54 |
| 859 | Viticulture | 1 | 11 | 114 | 262 |
| 859 | adolescence | 2 | 11 | 1251 | 3199 |
| 859 | Social Media | 1 | 11 | 61 | 187 |
| 859 | Task analysis | 1 | 11 | 15 | 11 |
| 859 | educational statistics | 2 | 11 | 8 | 40 |
| 859 | Renaissance | 1 | 11 | 4 | 3 |
| 859 | Social environment | 1 | 11 | 317 | 834 |
| 859 | Wine | 1 | 11 | 36 | 72 |
| 872 | History of Medicine | 4 | 10 | 111 | 358 |
| 872 | Adolescent Psychology | 1 | 10 | 1784 | 3029 |
| 872 | Postcolonialism | 2 | 10 | 19 | 114 |
| 872 | Interactive multimedia | 1 | 10 | 998 | 1790 |
| 872 | Spain | 7 | 10 | 6 | 131 |
| 877 | Petroleum Engineering | 1 | 9 | 1075 | 1859 |
| 877 | emergency management | 2 | 9 | 446 | 2129 |
| 877 | economic indicators | 3 | 9 | 54 | 224 |
| 877 | Logical Positivism | 1 | 9 | 1 | 1 |
| 877 | Financial Regulation | 2 | 9 | 13 | 55 |
| 877 | Labor Mobility | 3 | 9 | 1 | 1 |
| 877 | Consumer Protection | 1 | 9 | 146 | 398 |
| 877 | Social Systems | 1 | 9 | 26 | 27 |
| 877 | Global warming | 1 | 9 | 213 | 284 |
| 877 | Nuclear disarmament | 2 | 9 | 2 | 12 |
| 877 | Visual Perception | 3 | 9 | 3701 | 11852 |
| 877 | Calorimetry | 1 | 9 | 2621 | 3984 |
| 877 | Customer Relations | 1 | 9 | 65 | 184 |
| 877 | emigration | 3 | 9 | 1 | 1 |
| 877 | Internal migration | 3 | 9 | 1 | 1 |
| 877 | Mountains | 3 | 9 | 219 | 1078 |
| 877 | probation | 1 | 9 | 22 | 34 |
| 877 | Thermal analysis | 1 | 9 | 2621 | 3984 |
| 877 | Social structure | 1 | 9 | 10 | 4 |
| 896 | Literature | 3 | 8 | 50 | 170 |
| 896 | Biomedical Engineering | 2 | 8 | 18389 | 39178 |
| 896 | Functional Analysis | 2 | 8 | 1540 | 2455 |
| 896 | Emergency Medical Services | 1 | 8 | 1134 | 2514 |
| 896 | Clinical Trials | 1 | 8 | 1265 | 2449 |
| 896 | Sociolinguistics | 2 | 8 | 174 | 589 |
| 896 | Organizational culture | 1 | 8 | 6 | 11 |
| 896 | Nutrition physiology | 1 | 8 | 1580 | 3510 |
| 896 | Emergency Medicine | 1 | 8 | 2871 | 5053 |
| 896 | Labor history | 3 | 8 | 23 | 114 |
| 896 | Bacterial infections | 1 | 8 | 1970 | 4835 |
| 907 | Arts | 3 | 7 | 108 | 495 |
| 907 | Political Economy | 1 | 7 | 126 | 190 |
| 907 | Music Therapy | 1 | 7 | 285 | 642 |
| 907 | Dietetics | 1 | 7 | 1465 | 2560 |
| 907 | Philosophy of Mind | 1 | 7 | 456 | 840 |
| 907 | Process Control | 1 | 7 | 1315 | 2516 |
| 907 | Discrete Mathematics | 3 | 7 | 303 | 633 |
| 907 | Speech Perception | 1 | 7 | 519 | 1075 |
| 907 | auditory perception | 1 | 7 | 566 | 1163 |
| 907 | philology | 1 | 7 | 67 | 49 |
| 907 | Animal welfare | 1 | 7 | 467 | 1260 |
| 907 | Russia | 2 | 7 | 56 | 142 |
| 907 | graph | 3 | 7 | 303 | 633 |
| 907 | Communications | 1 | 7 | 53 | 11 |
| 907 | Oral communication | 1 | 7 | 482 | 959 |
| 907 | Host-parasite interactions | 1 | 7 | 3827 | 7950 |
| 907 | media | 1 | 7 | 53 | 11 |
| 907 | Virulence | 1 | 7 | 3512 | 7319 |
| 907 | public records | 1 | 7 | 33 | 71 |
| 907 | professional practice | 1 | 7 | 186 | 310 |
| 907 | Speech | 1 | 7 | 1864 | 3371 |
| 907 | Investments | 4 | 7 | 51 | 654 |
| 907 | Immunity | 1 | 7 | 8407 | 15306 |
| 930 | Radiology | 1 | 6 | 3181 | 5915 |
| 930 | Cognitive Psychology | 1 | 6 | 727 | 1340 |
| 930 | Maritime Law | 1 | 6 | 111 | 189 |
| 930 | Radiography | 1 | 6 | 2178 | 4296 |
| 930 | Autobiography | 1 | 6 | 17 | 9 |
| 930 | Marine Conservation | 1 | 6 | 92 | 160 |
| 930 | Law of the Sea | 1 | 6 | 93 | 160 |
| 930 | business cycles | 1 | 6 | 63 | 86 |
| 930 | Information management | 1 | 6 | 79 | 329 |
| 930 | Group Identity | 1 | 6 | 75 | 257 |
| 930 | Labor market | 1 | 6 | 7 | 37 |
| 941 | Astrophysics | 1 | 5 | 5728 | 8403 |
| 941 | Neonatology | 2 | 5 | 824 | 3268 |
| 941 | Health equity | 2 | 5 | 38 | 284 |
| 941 | Totalitarianism | 2 | 5 | 2 | 10 |
| 941 | Animal husbandry | 1 | 5 | 514 | 1151 |
| 941 | Fascism | 2 | 5 | 2 | 10 |
| 941 | Crisis Intervention | 1 | 5 | 273 | 751 |
| 941 | urban health | 2 | 5 | 299 | 1323 |
| 941 | Public Finance | 2 | 5 | 66 | 235 |
| 941 | Iberian Peninsula | 4 | 5 | 2 | 2 |
| 941 | Humanitarian Assistance | 1 | 5 | 21 | 80 |
| 941 | livestock | 1 | 5 | 794 | 1606 |
| 941 | Memory | 2 | 5 | 5610 | 14253 |
| 941 | Attention | 2 | 5 | 5233 | 13397 |
| 941 | Suicide | 1 | 5 | 932 | 2087 |
| 941 | Multiple sclerosis | 1 | 5 | 1312 | 2618 |
| 941 | molecular chaperones | 4 | 5 | 83 | 1423 |
| 958 | Special Education | 1 | 4 | 995 | 1681 |
| 958 | Military History | 3 | 4 | 2 | 7 |
| 958 | Quality Control | 1 | 4 | 3708 | 7685 |
| 958 | Control Theory | 1 | 4 | 4376 | 6614 |
| 958 | Political Theology | 2 | 4 | 10 | 52 |
| 958 | visual sociology | 1 | 4 | 19 | 57 |
| 958 | Visual Anthropology | 1 | 4 | 86 | 129 |
| 958 | Censorship | 3 | 4 | 3 | 6 |
| 958 | Random graphs | 5 | 4 | 97 | 463 |
| 958 | policy making | 2 | 4 | 17 | 114 |
| 958 | security measures | 2 | 4 | 22 | 230 |
| 958 | human migration | 1 | 4 | 77 | 149 |
| 958 | educational innovations | 1 | 4 | 642 | 1551 |
| 958 | language | 2 | 4 | 831 | 2940 |
| 972 | Dermatology | 1 | 3 | 4683 | 9242 |
| 972 | Behavioral Genetics | 1 | 3 | 599 | 1616 |
| 972 | Signal Processing | 1 | 3 | 7113 | 12219 |
| 972 | Political Ecology | 2 | 3 | 3 | 39 |
| 972 | Sleep Disorders | 1 | 3 | 4845 | 9087 |
| 972 | Cognitive Therapy | 1 | 3 | 1085 | 2311 |
| 972 | Smoking | 1 | 3 | 1815 | 3816 |
| 972 | Religion and Psychology | 1 | 3 | 1015 | 2460 |
| 972 | Internet literacy | 1 | 3 | 5 | 13 |
| 972 | Computer Literacy | 1 | 3 | 115 | 396 |
| 972 | Sleep | 1 | 3 | 4940 | 9222 |
| 983 | Electrical Engineering | 1 | 2 | 7922 | 11186 |
| 983 | Electronics | 1 | 2 | 10861 | 18387 |
| 983 | Medical Sociology | 1 | 2 | 85 | 314 |
| 983 | Environmental Ethics | 1 | 2 | 218 | 620 |
| 983 | Architectural Design | 1 | 2 | 726 | 1684 |
| 983 | Population Genetics | 1 | 2 | 3001 | 6389 |
| 983 | Aesthetics | 2 | 2 | 126 | 351 |
| 983 | Communication Theory | 1 | 2 | 41 | 128 |
| 983 | genre | 1 | 2 | 137 | 483 |
| 983 | epidemiologic methods | 1 | 2 | 302 | 933 |
| 983 | Functional equations | 1 | 2 | 345 | 601 |
| 983 | Integrative Medicine | 1 | 2 | 518 | 1809 |
| 983 | Fixed Point Theory | 2 | 2 | 327 | 835 |
| 983 | Semiotics | 2 | 2 | 85 | 460 |
| 983 | men | 1 | 2 | 307 | 1192 |
| 983 | design | 1 | 2 | 298 | 667 |
| 983 | stability | 1 | 2 | 138 | 348 |
| 983 | Zionism | 1 | 2 | 26 | 40 |