| 1 | United States | 873 | 15.2K | 112 | 186 |
| 2 | Ecology | 217 | 10.9K | 597 | 599 |
| 3 | Science | 164 | 8.6K | 1148 | 1159 |
| 4 | Chemistry | 185 | 8.6K | 1414 | 1204 |
| 5 | Biology | 307 | 6.5K | 703 | 1326 |
| 6 | Building Materials | 93 | 6.4K | 158 | 100 |
| 7 | Biochemistry | 193 | 5.4K | 1191 | 1258 |
| 8 | Physics | 142 | 5.3K | 1494 | 1590 |
| 9 | Psychology | 276 | 5.1K | 325 | 499 |
| 10 | Education | 317 | 4.5K | 149 | 262 |
| 11 | Geomorphology | 74 | 4.1K | 120 | 82 |
| 12 | Molecular Biology | 103 | 3.9K | 1331 | 1323 |
| 13 | Environment | 59 | 3.8K | 983 | 948 |
| 14 | Materials | 67 | 3.6K | 1446 | 1072 |
| 15 | Communication | 164 | 3.5K | 82 | 192 |
| 16 | Environmental Health | 78 | 3.5K | 872 | 797 |
| 17 | Carbon | 6 | 3.3K | 889 | 147 |
| 18 | Medicine | 121 | 3.2K | 1449 | 1573 |
| 19 | Polymers | 100 | 3.0K | 810 | 746 |
| 20 | Business | 50 | 3.0K | 367 | 365 |
| 21 | Nanotechnology | 62 | 2.9K | 1134 | 1027 |
| 22 | Research | 107 | 2.9K | 1326 | 1342 |
| 23 | Pharmacology | 59 | 2.8K | 1143 | 862 |
| 24 | polymerization | 83 | 2.8K | 739 | 645 |
| 25 | Biophysics | 93 | 2.6K | 1002 | 1029 |
| 26 | Natural history | 80 | 2.6K | 476 | 1228 |
| 27 | Pollution | 93 | 2.5K | 856 | 1226 |
| 28 | Educational Psychology | 71 | 2.4K | 181 | 195 |
| 29 | Geography | 154 | 2.4K | 137 | 278 |
| 30 | Software Engineering | 12 | 2.4K | 462 | 92 |
| 31 | Pharmaceutical Chemistry | 29 | 2.4K | 1155 | 637 |
| 32 | Health insurance | 4 | 2.4K | 317 | 46 |
| 33 | Psychiatry | 163 | 2.3K | 394 | 770 |
| 34 | Social Psychology | 72 | 2.3K | 346 | 428 |
| 35 | Optics | 80 | 2.2K | 865 | 676 |
| 36 | Economics | 95 | 2.0K | 701 | 693 |
| 37 | Materials Science | 55 | 2.0K | 1088 | 1029 |
| 38 | Behavior | 84 | 2.0K | 472 | 719 |
| 39 | Microbiology | 65 | 1.9K | 1283 | 1462 |
| 40 | management | 55 | 1.9K | 700 | 827 |
| 41 | environmental pollution | 78 | 1.9K | 716 | 1053 |
| 42 | Astrophysics | 64 | 1.8K | 825 | 927 |
| 43 | Child | 54 | 1.8K | 382 | 316 |
| 44 | Gerontology | 118 | 1.8K | 165 | 228 |
| 45 | Molecular ecology | 20 | 1.8K | 348 | 271 |
| 46 | Nuclear Physics | 57 | 1.7K | 1236 | 1093 |
| 47 | Solid State Physics | 69 | 1.7K | 919 | 852 |
| 48 | Spectrum analysis | 88 | 1.7K | 793 | 1022 |
| 49 | Environmental Policy | 37 | 1.7K | 738 | 735 |
| 50 | marketing | 76 | 1.6K | 199 | 444 |
| 51 | Molecular Genetics | 20 | 1.6K | 612 | 432 |
| 52 | Sociology | 87 | 1.6K | 384 | 503 |
| 53 | Adolescent | 81 | 1.6K | 209 | 316 |
| 54 | Developmental Disabilities | 48 | 1.6K | 154 | 191 |
| 55 | Botany | 49 | 1.6K | 975 | 993 |
| 56 | Teaching | 51 | 1.6K | 251 | 218 |
| 57 | Environmental monitoring | 23 | 1.6K | 1363 | 947 |
| 58 | Clinical Psychology | 62 | 1.6K | 181 | 304 |
| 58 | Statistical physics | 46 | 1.6K | 969 | 818 |
| 60 | Population Genetics | 24 | 1.5K | 345 | 281 |
| 61 | Geriatrics | 105 | 1.5K | 330 | 505 |
| 62 | environmental protection | 20 | 1.4K | 1322 | 814 |
| 63 | counseling | 115 | 1.4K | 93 | 204 |
| 64 | Child Development | 50 | 1.4K | 357 | 430 |
| 65 | Toxicology | 72 | 1.4K | 814 | 1136 |
| 66 | Special Education | 40 | 1.4K | 112 | 83 |
| 67 | Environmental Engineering | 14 | 1.4K | 1722 | 891 |
| 68 | Public Health | 65 | 1.4K | 896 | 1103 |
| 69 | Sports | 72 | 1.4K | 299 | 399 |
| 69 | Condensed Matter | 51 | 1.4K | 902 | 879 |
| 71 | Autism | 29 | 1.4K | 129 | 137 |
| 72 | Environmental Toxicology | 31 | 1.3K | 540 | 527 |
| 73 | Health Education | 96 | 1.3K | 180 | 295 |
| 74 | Learning disabilities | 60 | 1.3K | 85 | 108 |
| 75 | Mathematics | 220 | 1.3K | 749 | 1195 |
| 76 | Regional Planning | 27 | 1.3K | 418 | 269 |
| 77 | Criminology | 58 | 1.3K | 124 | 148 |
| 78 | System analysis | 22 | 1.3K | 805 | 397 |
| 79 | biological evolution | 29 | 1.3K | 576 | 646 |
| 80 | Social work | 79 | 1.2K | 146 | 182 |
| 81 | behavior modification | 31 | 1.2K | 77 | 97 |
| 82 | Hydrology | 43 | 1.2K | 494 | 537 |
| 83 | nanoscience | 15 | 1.2K | 1289 | 917 |
| 84 | Consumer education | 20 | 1.1K | 27 | 34 |
| 85 | Social Sciences | 84 | 1.1K | 421 | 580 |
| 86 | human development | 24 | 1.1K | 184 | 167 |
| 87 | Health | 60 | 1.1K | 285 | 411 |
| 88 | Quantum electronics | 18 | 1.1K | 597 | 256 |
| 88 | lasers | 17 | 1.1K | 878 | 366 |
| 90 | Geographic information systems | 69 | 1.1K | 37 | 61 |
| 91 | behavior therapy | 46 | 1.1K | 140 | 192 |
| 92 | Information Systems | 16 | 1.1K | 437 | 182 |
| 93 | Biodiversity | 26 | 1.1K | 594 | 552 |
| 94 | human behavior | 43 | 1.1K | 524 | 830 |
| 95 | Psychophysiology | 57 | 1.0K | 599 | 876 |
| 96 | Astronomy | 31 | 1.0K | 962 | 954 |
| 97 | Aging | 92 | 1.0K | 347 | 668 |
| 98 | Marine Biology | 46 | 1.0K | 603 | 729 |
| 99 | Obesity | 31 | 1.0K | 479 | 560 |
| 100 | Microbial Ecology | 22 | 1.0K | 707 | 792 |
| 101 | Evolution | 24 | 992 | 576 | 613 |
| 102 | Economic planning | 11 | 978 | 155 | 33 |
| 103 | adolescence | 36 | 964 | 167 | 240 |
| 104 | Child psychology | 38 | 960 | 336 | 484 |
| 105 | Vocational guidance | 59 | 956 | 113 | 268 |
| 106 | Physical Geography | 60 | 953 | 9 | 48 |
| 107 | Fisheries | 46 | 951 | 243 | 334 |
| 108 | Sports Medicine | 70 | 947 | 377 | 624 |
| 109 | Nanostructures | 8 | 946 | 1208 | 568 |
| 110 | Exercise | 36 | 943 | 255 | 251 |
| 111 | Environmental Law | 3 | 938 | 982 | 391 |
| 112 | Business Ethics | 17 | 918 | 296 | 401 |
| 113 | Econometrics | 22 | 906 | 433 | 323 |
| 114 | rehabilitation | 34 | 902 | 468 | 529 |
| 115 | Criminal psychology | 66 | 898 | 61 | 167 |
| 115 | Remote Sensing | 41 | 898 | 184 | 163 |
| 117 | families | 49 | 886 | 89 | 138 |
| 118 | Developmental Psychology | 19 | 883 | 334 | 330 |
| 119 | Neurology | 39 | 877 | 1279 | 1522 |
| 120 | crime | 56 | 875 | 55 | 125 |
| 121 | Electronics | 41 | 866 | 894 | 879 |
| 121 | Substance Abuse | 40 | 866 | 270 | 325 |
| 123 | Biocompatible Materials | 20 | 864 | 1435 | 1445 |
| 124 | Epidemiology | 21 | 850 | 1157 | 906 |
| 125 | Genetics | 39 | 847 | 847 | 1221 |
| 126 | Transportation | 46 | 823 | 306 | 468 |
| 127 | Geophysics | 29 | 807 | 1103 | 1123 |
| 128 | Regional Development | 6 | 805 | 153 | 19 |
| 128 | Development planning | 6 | 805 | 125 | 16 |
| 130 | Biotechnology | 13 | 796 | 2639 | 2084 |
| 131 | Biodiversity conservation | 12 | 769 | 714 | 743 |
| 132 | Archaeology | 45 | 759 | 261 | 292 |
| 133 | Nutrition | 38 | 758 | 1029 | 1367 |
| 134 | Adult Education | 105 | 753 | 6 | 30 |
| 135 | alcoholism | 40 | 746 | 294 | 428 |
| 136 | Public Policy | 33 | 741 | 370 | 453 |
| 136 | violence | 34 | 741 | 186 | 268 |
| 138 | Zoology | 51 | 739 | 491 | 656 |
| 139 | Youth | 20 | 735 | 178 | 201 |
| 140 | Vocational Education | 37 | 729 | 57 | 70 |
| 141 | Socialization | 19 | 717 | 131 | 158 |
| 142 | ecosystem | 8 | 712 | 733 | 496 |
| 143 | Statistics | 33 | 710 | 810 | 674 |
| 144 | Pediatrics | 11 | 709 | 1011 | 741 |
| 145 | Intellectual disability | 30 | 703 | 172 | 203 |
| 146 | role | 16 | 700 | 105 | 111 |
| 147 | Animal Behavior | 26 | 698 | 586 | 715 |
| 148 | Composite Materials | 21 | 696 | 1017 | 1081 |
| 149 | Reading | 63 | 693 | 39 | 129 |
| 150 | Cancer | 14 | 692 | 1204 | 1123 |
| 151 | Biogeography | 9 | 683 | 537 | 447 |
| 152 | recreation | 49 | 682 | 71 | 106 |
| 153 | Organic Chemistry | 27 | 674 | 1144 | 1128 |
| 154 | psychotherapy | 22 | 673 | 402 | 434 |
| 155 | Cell Biology | 15 | 666 | 1554 | 1571 |
| 156 | Environmental Management | 19 | 662 | 1091 | 1297 |
| 156 | Food | 7 | 662 | 1978 | 1186 |
| 158 | Analytical Chemistry | 25 | 661 | 1628 | 1683 |
| 159 | Leisure | 17 | 657 | 74 | 66 |
| 160 | food technology | 10 | 656 | 1347 | 931 |
| 161 | Biomedical Engineering | 19 | 652 | 1991 | 1780 |
| 162 | Speech Disorders | 64 | 644 | 141 | 320 |
| 163 | Signal Processing | 12 | 641 | 1316 | 949 |
| 164 | finance | 63 | 639 | 350 | 729 |
| 165 | Anthropology | 44 | 638 | 305 | 364 |
| 165 | Communication in medicine | 28 | 638 | 92 | 118 |
| 167 | Image Processing | 13 | 636 | 1086 | 807 |
| 167 | Ethology | 21 | 636 | 518 | 664 |
| 169 | Quality Control | 16 | 624 | 530 | 429 |
| 170 | Family | 32 | 618 | 199 | 254 |
| 170 | internet | 13 | 618 | 657 | 499 |
| 172 | Genomics | 28 | 616 | 854 | 1057 |
| 173 | drug addiction | 28 | 614 | 277 | 393 |
| 174 | Hematology | 2 | 612 | 1626 | 786 |
| 175 | Semiconductors | 28 | 611 | 573 | 496 |
| 176 | Eating Disorders | 15 | 609 | 313 | 261 |
| 176 | Feeding and Eating Disorders | 15 | 609 | 290 | 249 |
| 178 | Meteorology | 14 | 606 | 930 | 873 |
| 179 | Water pollution | 14 | 604 | 1260 | 1173 |
| 180 | Soil Science | 14 | 599 | 802 | 690 |
| 181 | Human genetics | 2 | 596 | 1562 | 1215 |
| 182 | Economic History | 40 | 591 | 779 | 914 |
| 183 | Artificial Intelligence | 22 | 584 | 1424 | 1445 |
| 184 | Physiology | 23 | 563 | 1424 | 1575 |
| 185 | older people | 104 | 559 | 138 | 341 |
| 186 | Chemical Engineering | 12 | 553 | 2334 | 2057 |
| 187 | Computational Biology | 14 | 552 | 1020 | 876 |
| 187 | Health promotion | 44 | 552 | 168 | 297 |
| 189 | Bioorganic chemistry | 21 | 546 | 1070 | 1134 |
| 190 | Geology | 17 | 543 | 1245 | 1072 |
| 191 | Child welfare | 40 | 541 | 179 | 272 |
| 191 | Cognition | 29 | 541 | 511 | 696 |
| 193 | Analytical Biochemistry | 15 | 529 | 661 | 532 |
| 194 | Water | 21 | 525 | 871 | 1228 |
| 195 | food handling | 8 | 523 | 429 | 281 |
| 195 | Social interaction | 17 | 523 | 66 | 85 |
| 197 | Aquaculture | 28 | 521 | 369 | 484 |
| 198 | Renewable Energy Sources | 11 | 519 | 1440 | 1612 |
| 199 | city planning | 17 | 518 | 585 | 522 |
| 200 | Electrochemistry | 80 | 513 | 838 | 1474 |
| 201 | computer networks | 12 | 511 | 1210 | 933 |
| 202 | Small Business | 9 | 509 | 369 | 456 |
| 203 | Traffic Engineering | 8 | 506 | 190 | 136 |
| 204 | Cartography | 22 | 502 | 57 | 36 |
| 204 | Plant physiology | 11 | 502 | 1102 | 1052 |
| 204 | Planets | 14 | 502 | 680 | 730 |
| 207 | Physical fitness | 18 | 501 | 314 | 363 |
| 208 | Crime prevention | 18 | 499 | 60 | 23 |
| 209 | Geodesy | 11 | 498 | 254 | 144 |
| 210 | Environmental Geology | 14 | 497 | 673 | 571 |
| 211 | Biomechanics | 26 | 493 | 317 | 492 |
| 212 | Earth Sciences | 25 | 489 | 1115 | 1251 |
| 213 | Neuropsychology | 34 | 486 | 603 | 896 |
| 213 | natural disasters | 22 | 486 | 262 | 433 |
| 215 | personality | 20 | 478 | 542 | 722 |
| 216 | Physical Therapy | 22 | 476 | 353 | 504 |
| 216 | health services | 26 | 476 | 213 | 283 |
| 218 | clay | 5 | 473 | 600 | 309 |
| 219 | Advertising | 15 | 470 | 63 | 99 |
| 220 | Geriatric Psychiatry | 16 | 467 | 315 | 302 |
| 221 | Engineering | 11 | 460 | 2314 | 1472 |
| 221 | Production Management | 14 | 460 | 472 | 688 |
| 223 | Mental Health | 22 | 458 | 442 | 485 |
| 224 | Entomology | 42 | 457 | 483 | 671 |
| 225 | Microelectronics | 29 | 454 | 491 | 820 |
| 226 | Smoking | 17 | 453 | 238 | 294 |
| 227 | Urban Economics | 5 | 452 | 232 | 146 |
| 228 | consumer behavior | 13 | 449 | 148 | 217 |
| 229 | Fishery management | 26 | 448 | 151 | 206 |
| 230 | Political Science | 20 | 447 | 665 | 525 |
| 231 | Research Design | 11 | 443 | 504 | 460 |
| 232 | Business communication | 23 | 439 | 14 | 19 |
| 233 | Language Disorders | 41 | 435 | 145 | 276 |
| 234 | Environmental Chemistry | 22 | 432 | 563 | 1064 |
| 235 | Energy Policy | 7 | 431 | 1779 | 1515 |
| 235 | Environmental pollutants | 24 | 431 | 613 | 1025 |
| 235 | Aquatic ecology | 9 | 431 | 467 | 279 |
| 238 | Public Administration | 34 | 429 | 296 | 451 |
| 238 | Continuing Education | 55 | 429 | 18 | 40 |
| 240 | Wildlife conservation | 20 | 426 | 338 | 559 |
| 241 | Juvenile delinquency | 10 | 419 | 135 | 88 |
| 241 | gene mapping | 17 | 419 | 662 | 905 |
| 243 | Liposomes | 10 | 418 | 234 | 216 |
| 243 | Lipid bilayers | 10 | 418 | 198 | 201 |
| 245 | energy resources | 5 | 417 | 1010 | 878 |
| 246 | pollutants | 23 | 410 | 494 | 898 |
| 246 | Social behavior | 18 | 410 | 403 | 532 |
| 248 | Internet of Things | 2 | 408 | 1291 | 494 |
| 249 | Neurophysiology | 17 | 406 | 1115 | 1302 |
| 250 | Higher Education | 18 | 403 | 143 | 159 |
| 250 | Tourism | 6 | 403 | 1166 | 862 |
| 252 | Law | 23 | 398 | 345 | 219 |
| 252 | Industrial Engineering | 9 | 398 | 988 | 756 |
| 254 | Water quality management | 15 | 397 | 673 | 600 |
| 255 | Computer Graphics | 13 | 390 | 774 | 682 |
| 256 | hazard mitigation | 21 | 388 | 140 | 302 |
| 256 | Meteorites | 7 | 388 | 562 | 558 |
| 258 | Elderly | 90 | 387 | 121 | 240 |
| 258 | disabilities | 18 | 387 | 180 | 216 |
| 260 | Literacy | 20 | 386 | 48 | 49 |
| 260 | Plant cells | 5 | 386 | 747 | 819 |
| 262 | Pharmaceutical Technology | 2 | 383 | 1640 | 693 |
| 262 | Human evolution | 12 | 383 | 161 | 228 |
| 262 | Sites | 10 | 383 | 260 | 267 |
| 262 | pharmaceutical industry | 2 | 383 | 697 | 118 |
| 266 | Technology | 11 | 382 | 1890 | 1540 |
| 267 | Membranes | 14 | 381 | 783 | 964 |
| 268 | deviant behavior | 12 | 378 | 94 | 54 |
| 269 | Algebra | 56 | 377 | 223 | 340 |
| 270 | Human Geography | 29 | 376 | 261 | 415 |
| 271 | Structural Engineering | 13 | 375 | 764 | 713 |
| 271 | Music | 29 | 375 | 131 | 201 |
| 273 | Conservation Biology | 17 | 371 | 359 | 518 |
| 273 | feeding behavior | 6 | 371 | 467 | 349 |
| 273 | rivers | 7 | 371 | 132 | 75 |
| 276 | Mental Health Services | 16 | 362 | 399 | 416 |
| 277 | police | 30 | 361 | 36 | 69 |
| 278 | freshwater biology | 15 | 358 | 281 | 357 |
| 279 | Computer Vision | 10 | 352 | 567 | 600 |
| 280 | Mental Disorders | 25 | 350 | 817 | 1273 |
| 281 | preventive medicine | 21 | 348 | 324 | 547 |
| 281 | Nanostructured Materials | 14 | 348 | 1470 | 1617 |
| 283 | Nanoelectronics | 25 | 347 | 159 | 177 |
| 283 | Brain | 19 | 347 | 1024 | 1278 |
| 285 | Plastics | 15 | 345 | 680 | 640 |
| 286 | Catalysis | 9 | 344 | 2048 | 1986 |
| 287 | Human-Computer Interaction | 14 | 342 | 563 | 678 |
| 288 | Ecohydrology | 5 | 340 | 224 | 80 |
| 288 | Multimedia Systems | 16 | 340 | 683 | 638 |
| 290 | Planetary Science | 6 | 339 | 314 | 163 |
| 290 | Vaccines | 3 | 339 | 1394 | 695 |
| 292 | Molecular evolution | 9 | 338 | 745 | 791 |
| 293 | School Psychology | 20 | 336 | 131 | 198 |
| 294 | Student Health Services | 14 | 335 | 81 | 88 |
| 295 | Educational Technology | 27 | 333 | 329 | 675 |
| 296 | Aggression | 6 | 330 | 295 | 245 |
| 297 | Operations Research | 19 | 329 | 881 | 1088 |
| 298 | Criminal Law | 5 | 328 | 195 | 84 |
| 299 | Information Technology | 20 | 326 | 770 | 1112 |
| 299 | Nuclear Chemistry | 16 | 326 | 381 | 306 |
| 301 | miniaturization | 10 | 325 | 941 | 1047 |
| 302 | Process Control | 10 | 324 | 430 | 648 |
| 302 | sex crimes | 20 | 324 | 153 | 239 |
| 304 | Roads | 36 | 319 | 159 | 239 |
| 305 | autism spectrum disorder | 9 | 315 | 10 | 11 |
| 306 | Appetite | 2 | 314 | 737 | 348 |
| 307 | Primates | 16 | 308 | 224 | 284 |
| 308 | organization | 7 | 304 | 490 | 543 |
| 309 | Europe | 12 | 303 | 1382 | 1189 |
| 310 | Social policy | 10 | 302 | 482 | 357 |
| 310 | natural products | 6 | 302 | 1276 | 738 |
| 312 | family violence | 8 | 301 | 222 | 204 |
| 313 | Mathematics Education | 22 | 300 | 67 | 110 |
| 314 | Psycholinguistics | 10 | 296 | 488 | 533 |
| 314 | Memory | 13 | 296 | 729 | 857 |
| 316 | Sustainable Development | 9 | 294 | 1060 | 1096 |
| 316 | Plant Ecology | 12 | 294 | 836 | 1049 |
| 316 | Bacteriology | 12 | 294 | 809 | 1086 |
| 316 | Marine Pollution | 3 | 294 | 1147 | 718 |
| 316 | Birds | 33 | 294 | 258 | 416 |
| 321 | Clinical Chemistry | 11 | 293 | 1240 | 1357 |
| 322 | Urban Policy | 9 | 292 | 399 | 393 |
| 323 | Fracture mechanics | 2 | 291 | 1477 | 682 |
| 324 | Nursing | 39 | 290 | 346 | 674 |
| 325 | Oncology | 8 | 285 | 1072 | 1358 |
| 325 | Green Chemistry | 3 | 285 | 1577 | 1194 |
| 325 | Medical Physics | 1 | 285 | 1843 | 820 |
| 328 | biological factors | 5 | 284 | 1471 | 923 |
| 329 | Solid State Chemistry | 20 | 283 | 1075 | 1258 |
| 330 | Health Policy | 17 | 282 | 748 | 926 |
| 331 | drugs | 11 | 280 | 953 | 980 |
| 332 | Neurochemistry | 7 | 279 | 1391 | 1256 |
| 332 | Experience | 13 | 279 | 4 | 4 |
| 332 | Human Resources | 6 | 279 | 273 | 279 |
| 335 | consumers | 15 | 277 | 55 | 167 |
| 336 | Genetic engineering | 9 | 273 | 1075 | 1108 |
| 337 | Public Relations | 16 | 270 | 91 | 152 |
| 338 | brain mapping | 5 | 268 | 449 | 407 |
| 339 | Cytology | 11 | 266 | 1872 | 2183 |
| 340 | Database Management | 5 | 263 | 580 | 401 |
| 340 | Physical Chemistry | 7 | 263 | 1425 | 1183 |
| 340 | health behavior | 16 | 263 | 292 | 444 |
| 340 | Radio | 5 | 263 | 1060 | 798 |
| 344 | Urban Education | 10 | 262 | 31 | 34 |
| 345 | energy conservation | 6 | 260 | 1466 | 1443 |
| 346 | Developing countries | 15 | 259 | 890 | 1124 |
| 347 | Plants | 14 | 258 | 886 | 1203 |
| 348 | Emergency Medicine | 4 | 257 | 964 | 493 |
| 349 | mammals | 24 | 255 | 223 | 417 |
| 350 | Databases | 1 | 254 | 578 | 197 |
| 351 | Paleoecology | 16 | 253 | 415 | 643 |
| 352 | plant molecular biology | 9 | 252 | 780 | 1073 |
| 353 | Criminal investigation | 5 | 250 | 116 | 38 |
| 354 | correctional psychology | 8 | 249 | 111 | 128 |
| 354 | Cell death | 2 | 249 | 1062 | 813 |
| 356 | Politics | 6 | 248 | 343 | 225 |
| 356 | government | 6 | 248 | 382 | 262 |
| 358 | Information Science | 15 | 247 | 1083 | 1572 |
| 359 | Adolescent Psychology | 17 | 246 | 259 | 472 |
| 360 | Environmental Microbiology | 5 | 245 | 966 | 984 |
| 360 | mathematical analysis | 28 | 245 | 898 | 1068 |
| 362 | sanitation | 2 | 241 | 1478 | 1192 |
| 362 | Cognitive Therapy | 8 | 241 | 312 | 321 |
| 364 | Biochemical Engineering | 3 | 240 | 2705 | 2329 |
| 364 | Environmental Education | 18 | 240 | 54 | 157 |
| 366 | Wildlife management | 27 | 239 | 102 | 207 |
| 366 | Social problems | 14 | 239 | 204 | 359 |
| 368 | Production Engineering | 12 | 238 | 931 | 927 |
| 369 | Writing | 8 | 237 | 104 | 127 |
| 369 | Oral communication | 21 | 237 | 60 | 157 |
| 371 | Ecological Genetics | 11 | 233 | 219 | 204 |
| 372 | Plant diseases | 13 | 232 | 896 | 1001 |
| 373 | ethnicity | 11 | 231 | 276 | 211 |
| 374 | Early Childhood Education | 13 | 230 | 227 | 237 |
| 374 | Medical Anthropology | 7 | 230 | 724 | 839 |
| 374 | child abuse | 7 | 230 | 490 | 522 |
| 377 | Bioengineering | 3 | 229 | 3366 | 2569 |
| 378 | concrete | 10 | 225 | 463 | 759 |
| 378 | educational innovations | 13 | 225 | 153 | 270 |
| 380 | Parasitology | 16 | 223 | 953 | 1207 |
| 380 | Learning | 14 | 223 | 565 | 748 |
| 380 | Methodology | 2 | 223 | 688 | 118 |
| 383 | Neurobiology | 2 | 222 | 1540 | 1097 |
| 383 | Creativity | 3 | 222 | 283 | 133 |
| 385 | elder abuse | 5 | 221 | 212 | 169 |
| 386 | Health Services Administration | 19 | 220 | 229 | 473 |
| 386 | behavioral medicine | 12 | 220 | 530 | 920 |
| 388 | Earthquake Engineering | 10 | 218 | 753 | 840 |
| 389 | Climatology | 9 | 217 | 928 | 1084 |
| 389 | proteins | 11 | 217 | 959 | 1103 |
| 391 | Classroom Environment | 1 | 216 | 158 | 17 |
| 391 | Speech | 22 | 216 | 246 | 557 |
| 393 | Biosensors | 1 | 215 | 1720 | 1104 |
| 394 | Strategic planning | 4 | 214 | 657 | 455 |
| 394 | Bioinformatics | 11 | 214 | 986 | 1164 |
| 396 | Manufacturing Processes | 11 | 213 | 1199 | 1318 |
| 396 | Chromosome mapping | 10 | 213 | 826 | 1109 |
| 396 | Family Therapy | 12 | 213 | 316 | 333 |
| 399 | economic policy | 13 | 209 | 1122 | 1030 |
| 399 | biological monitoring | 1 | 209 | 863 | 269 |
| 401 | Endocrinology | 12 | 208 | 1234 | 1655 |
| 401 | Surface Chemistry | 10 | 208 | 2084 | 2348 |
| 401 | Nanoparticles | 8 | 208 | 1127 | 1202 |
| 401 | social justice | 14 | 208 | 66 | 57 |
| 405 | Gender Studies | 10 | 207 | 188 | 248 |
| 405 | Animal ecology | 11 | 207 | 564 | 683 |
| 405 | Marriage | 15 | 207 | 144 | 251 |
| 405 | International Finance | 15 | 207 | 714 | 1025 |
| 405 | Radio waves | 3 | 207 | 791 | 579 |
| 410 | Parallel Processing | 4 | 206 | 376 | 317 |
| 410 | Suicide | 19 | 206 | 116 | 276 |
| 412 | Obsessive-Compulsive Disorder | 7 | 205 | 44 | 42 |
| 412 | Asia | 14 | 205 | 1135 | 1211 |
| 414 | Civil Engineering | 12 | 204 | 676 | 499 |
| 414 | China | 11 | 204 | 1434 | 1525 |
| 414 | race relations | 9 | 204 | 303 | 291 |
| 414 | sexual behavior | 8 | 204 | 354 | 396 |
| 418 | Agricultural Chemistry | 68 | 201 | 285 | 1412 |
| 419 | Developmental Neurobiology | 18 | 200 | 92 | 257 |
| 420 | actuators | 7 | 199 | 1455 | 1549 |
| 420 | transducers | 7 | 199 | 1455 | 1549 |
| 422 | voice | 3 | 198 | 480 | 226 |
| 422 | multimedia | 6 | 198 | 318 | 343 |
| 422 | Population | 4 | 198 | 709 | 530 |
| 422 | Interactive multimedia | 6 | 198 | 351 | 362 |
| 426 | thinking | 4 | 197 | 229 | 141 |
| 426 | Combinatorial analysis | 25 | 197 | 274 | 367 |
| 426 | Jurisprudence | 9 | 197 | 493 | 443 |
| 429 | Functional Analysis | 22 | 195 | 445 | 713 |
| 429 | Molecular Spectroscopy | 21 | 195 | 591 | 1100 |
| 429 | Nervous system | 18 | 195 | 885 | 1473 |
| 432 | Nuclear Engineering | 26 | 193 | 425 | 645 |
| 433 | Climate change | 4 | 192 | 777 | 1059 |
| 434 | Drug delivery systems | 4 | 191 | 1309 | 1127 |
| 434 | Drug delivery devices | 4 | 191 | 166 | 209 |
| 436 | Decision making | 10 | 190 | 698 | 847 |
| 437 | Oncogenes | 1 | 189 | 1131 | 884 |
| 438 | adulthood | 3 | 188 | 96 | 33 |
| 439 | planning | 7 | 187 | 404 | 327 |
| 440 | urban population | 2 | 186 | 277 | 206 |
| 441 | Geochemistry | 9 | 185 | 1095 | 1272 |
| 441 | Mass Spectrometry | 8 | 185 | 637 | 658 |
| 441 | Parasites | 10 | 185 | 819 | 900 |
| 444 | Systems Analysis | 4 | 184 | 999 | 604 |
| 445 | population policy | 2 | 182 | 200 | 71 |
| 445 | Southern states | 16 | 182 | 50 | 56 |
| 447 | Parasitic Diseases | 10 | 180 | 950 | 1183 |
| 448 | Visual Perception | 7 | 179 | 869 | 923 |
| 449 | Sustainable Engineering | 1 | 178 | 2219 | 1216 |
| 450 | Atmospheric Physics | 15 | 177 | 605 | 1028 |
| 451 | Ocean Engineering | 6 | 176 | 1171 | 1110 |
| 452 | Microstructure | 5 | 175 | 665 | 349 |
| 453 | Cognitive Science | 3 | 174 | 1530 | 1118 |
| 454 | Health Information Management | 1 | 173 | 661 | 496 |
| 454 | soil microbiology | 9 | 173 | 787 | 1278 |
| 456 | Optical materials | 6 | 172 | 1805 | 1862 |
| 457 | Marine Biotechnology | 11 | 171 | 43 | 138 |
| 457 | individual differences | 7 | 171 | 145 | 247 |
| 459 | Medical Laboratory Science | 5 | 170 | 1366 | 1491 |
| 459 | sadness | 9 | 170 | 47 | 65 |
| 459 | death | 10 | 170 | 79 | 98 |
| 459 | antisocial personality disorder | 9 | 170 | 47 | 65 |
| 463 | Human Capital | 25 | 169 | 12 | 151 |
| 463 | sports administration | 5 | 169 | 202 | 158 |
| 463 | plant communities | 6 | 169 | 720 | 892 |
| 466 | Semiconductor industry | 8 | 167 | 311 | 256 |
| 466 | Agriculture | 7 | 167 | 1283 | 1302 |
| 468 | Ethnoarchaeology | 4 | 166 | 138 | 112 |
| 468 | Entrepreneurship | 10 | 166 | 422 | 909 |
| 470 | Nonlinear functional analysis | 17 | 163 | 401 | 692 |
| 470 | Wireless Communication Systems | 12 | 163 | 1216 | 1440 |
| 472 | Feminism | 9 | 162 | 291 | 269 |
| 472 | intervention | 12 | 162 | 27 | 27 |
| 474 | Biopharmaceutics | 1 | 160 | 1459 | 819 |
| 474 | Gene expression regulation | 4 | 160 | 738 | 643 |
| 474 | Genetic regulation | 4 | 160 | 827 | 792 |
| 474 | nucleic acids | 6 | 160 | 1019 | 1224 |
| 474 | protein | 9 | 160 | 634 | 774 |
| 474 | Colloids | 6 | 160 | 2466 | 2637 |
| 480 | Consumer Protection | 6 | 159 | 87 | 122 |
| 480 | child mental health | 8 | 159 | 237 | 279 |
| 482 | Ornithology | 14 | 156 | 385 | 494 |
| 483 | Diet | 15 | 155 | 743 | 1559 |
| 484 | Heterocyclic compounds | 13 | 154 | 380 | 412 |
| 485 | Mental illness | 13 | 153 | 762 | 1332 |
| 486 | Energy Conversion | 3 | 152 | 1147 | 1141 |
| 487 | Patient education | 4 | 151 | 450 | 441 |
| 487 | Eutrophication | 3 | 151 | 846 | 1118 |
| 489 | Data Mining | 6 | 150 | 1066 | 1175 |
| 489 | health services accessibility | 6 | 150 | 581 | 565 |
| 491 | Photonics | 4 | 149 | 1478 | 1369 |
| 491 | child behavior | 5 | 149 | 276 | 333 |
| 493 | Community Colleges | 26 | 148 | 20 | 59 |
| 494 | Bilingual Education | 8 | 146 | 24 | 37 |
| 494 | healthcare disparities | 6 | 146 | 268 | 297 |
| 496 | Community Psychology | 8 | 144 | 287 | 440 |
| 496 | Fish diseases | 8 | 144 | 32 | 64 |
| 496 | Aquatic animals | 8 | 144 | 51 | 80 |
| 496 | Invertebrates | 8 | 144 | 293 | 364 |
| 500 | Cytogenetics | 3 | 143 | 1107 | 1060 |
| 500 | Socioeconomic Factors | 9 | 143 | 344 | 556 |
| 502 | Systems Engineering | 6 | 142 | 1558 | 1468 |
| 502 | Highway Engineering | 10 | 142 | 151 | 214 |
| 502 | Algae | 8 | 142 | 428 | 568 |
| 502 | Seaweed | 8 | 142 | 308 | 468 |
| 506 | Multicultural Education | 9 | 141 | 143 | 179 |
| 507 | Journalism | 12 | 140 | 189 | 251 |
| 507 | Ecophysiology | 3 | 140 | 208 | 114 |
| 507 | Leadership | 11 | 140 | 161 | 533 |
| 507 | Phylogeny | 4 | 140 | 735 | 828 |
| 511 | Developmental Genetics | 2 | 139 | 493 | 500 |
| 511 | industrial hygiene | 12 | 139 | 346 | 390 |
| 511 | viral genetics | 2 | 139 | 294 | 403 |
| 514 | DNA polymerases | 6 | 138 | 223 | 545 |
| 515 | Land use | 5 | 137 | 829 | 924 |
| 515 | Quantitative Research | 6 | 137 | 140 | 200 |
| 515 | Qualitative Research | 7 | 137 | 293 | 353 |
| 518 | Bioinorganic chemistry | 9 | 136 | 825 | 1060 |
| 519 | Paleontology | 10 | 135 | 691 | 824 |
| 519 | Distance Education | 6 | 135 | 197 | 258 |
| 519 | Growth | 7 | 135 | 660 | 1021 |
| 522 | Environmental Economics | 6 | 131 | 190 | 230 |
| 522 | Cognitive neuroscience | 9 | 131 | 522 | 843 |
| 522 | Financial management | 2 | 131 | 563 | 438 |
| 522 | Telecommunication | 30 | 131 | 754 | 1761 |
| 522 | Reproduction | 4 | 131 | 1649 | 1426 |
| 527 | Robotics | 8 | 129 | 1067 | 1215 |
| 527 | Educational Leadership | 9 | 129 | 37 | 64 |
| 529 | Ethics | 24 | 126 | 194 | 524 |
| 529 | locomotion | 5 | 126 | 466 | 514 |
| 529 | posture | 5 | 126 | 466 | 514 |
| 529 | Animal welfare | 1 | 126 | 515 | 198 |
| 529 | hygiene | 2 | 126 | 612 | 368 |
| 529 | gait | 5 | 126 | 466 | 514 |
| 529 | walking | 5 | 126 | 466 | 514 |
| 536 | Industrial Safety | 7 | 125 | 693 | 852 |
| 536 | Educational Anthropology | 4 | 125 | 76 | 54 |
| 538 | Adolescent Medicine | 2 | 124 | 610 | 628 |
| 539 | Metabolism | 4 | 123 | 1619 | 1806 |
| 539 | Mycology | 6 | 123 | 1028 | 1191 |
| 539 | drug abuse | 9 | 123 | 278 | 416 |
| 542 | Landslides | 1 | 122 | 450 | 277 |
| 542 | Fluorescence | 1 | 122 | 936 | 221 |
| 544 | data collection | 2 | 121 | 1286 | 900 |
| 545 | Disability Studies | 5 | 120 | 158 | 135 |
| 545 | Fiber Optics | 2 | 120 | 1038 | 676 |
| 547 | Evolutionary Psychology | 4 | 118 | 101 | 102 |
| 547 | Forest Ecology | 5 | 118 | 745 | 874 |
| 547 | complementary therapies | 7 | 118 | 988 | 1297 |
| 547 | Forest Management | 5 | 118 | 713 | 830 |
| 547 | Reservoirs | 8 | 118 | 54 | 71 |
| 547 | North America | 18 | 118 | 198 | 484 |
| 553 | Agricultural Ecology | 3 | 117 | 960 | 999 |
| 553 | Mineralogy | 3 | 117 | 1201 | 936 |
| 553 | Corporate Social Responsibility | 2 | 117 | 404 | 418 |
| 553 | environmental auditing | 2 | 117 | 424 | 420 |
| 553 | Personality Assessment | 5 | 117 | 408 | 539 |
| 558 | Molecular cloning | 8 | 116 | 811 | 1080 |
| 558 | Genetic recombination | 8 | 116 | 797 | 1068 |
| 558 | atmospheric models | 1 | 116 | 808 | 566 |
| 558 | Recombinant DNA | 8 | 116 | 859 | 1115 |
| 562 | Medical Technology | 3 | 115 | 1432 | 1210 |
| 562 | Forensic Psychology | 11 | 115 | 138 | 254 |
| 562 | Photochemistry | 6 | 115 | 1186 | 1383 |
| 562 | Evidence-Based Medicine | 18 | 115 | 157 | 546 |
| 562 | Freeze-Drying | 4 | 115 | 283 | 255 |
| 562 | Hypothermia | 4 | 115 | 283 | 255 |
| 562 | Freeze Drying | 4 | 115 | 283 | 255 |
| 562 | Law enforcement | 7 | 115 | 42 | 77 |
| 570 | Pathology | 9 | 114 | 987 | 1403 |
| 570 | Public Choice | 2 | 114 | 453 | 280 |
| 570 | Group decision making | 2 | 114 | 615 | 375 |
| 573 | Signal Transduction | 2 | 112 | 1414 | 1272 |
| 573 | industrial relations | 2 | 112 | 1006 | 567 |
| 573 | aquatic insects | 5 | 112 | 38 | 14 |
| 573 | minority groups | 6 | 112 | 43 | 35 |
| 573 | Attention | 6 | 112 | 975 | 1136 |
| 573 | Perception | 6 | 112 | 1053 | 1227 |
| 579 | Sleep Disorders | 8 | 111 | 807 | 1037 |
| 579 | Sexuality | 5 | 111 | 184 | 174 |
| 581 | Employee rights | 1 | 110 | 195 | 48 |
| 581 | Insects | 8 | 110 | 864 | 995 |
| 581 | Sales management | 3 | 110 | 229 | 344 |
| 581 | selling | 3 | 110 | 229 | 344 |
| 585 | Ethnic relations | 6 | 109 | 378 | 329 |
| 586 | Freshwater Ecology | 10 | 108 | 56 | 100 |
| 586 | Systems Biology | 6 | 108 | 934 | 1153 |
| 588 | Philosophy | 27 | 107 | 524 | 691 |
| 588 | food contamination | 10 | 107 | 370 | 700 |
| 588 | Environmental risk assessment | 4 | 107 | 280 | 298 |
| 588 | Japan | 8 | 107 | 990 | 1198 |
| 592 | emergency management | 2 | 106 | 817 | 572 |
| 592 | Social welfare | 8 | 106 | 290 | 384 |
| 592 | California | 14 | 106 | 144 | 271 |
| 595 | Experimental Psychology | 8 | 105 | 344 | 511 |
| 595 | Urban Geography | 6 | 105 | 139 | 193 |
| 597 | Energy Storage | 2 | 104 | 1429 | 1092 |
| 597 | water supply | 3 | 104 | 817 | 803 |
| 597 | Neurodevelopmental disorders | 15 | 104 | 5 | 10 |
| 600 | Physical organic chemistry | 10 | 103 | 800 | 1132 |
| 600 | Recycling | 3 | 103 | 598 | 923 |
| 602 | Architecture | 3 | 102 | 549 | 278 |
| 602 | Graph Theory | 13 | 102 | 287 | 378 |
| 602 | Academic achievement | 2 | 102 | 60 | 23 |
| 602 | polar regions | 1 | 102 | 932 | 497 |
| 606 | Hydraulic Engineering | 2 | 101 | 965 | 683 |
| 606 | Career development | 11 | 101 | 122 | 284 |
| 606 | speech therapy | 24 | 101 | 89 | 292 |
| 606 | Corporate governance | 3 | 101 | 639 | 628 |
| 606 | Anxiety Disorders | 4 | 101 | 386 | 603 |
| 606 | Anxiety | 4 | 101 | 389 | 602 |
| 606 | medical education | 8 | 101 | 934 | 1193 |
| 613 | Distributed Databases | 3 | 99 | 158 | 109 |
| 613 | Green Technology | 4 | 99 | 282 | 339 |
| 613 | civil rights | 3 | 99 | 384 | 230 |
| 613 | Paleopathology | 6 | 99 | 188 | 175 |
| 617 | Alternative Medicine | 5 | 98 | 1067 | 1353 |
| 617 | cell physiology | 3 | 98 | 1219 | 1365 |
| 619 | Disability Law | 5 | 97 | 102 | 134 |
| 620 | Occupational Health | 6 | 96 | 649 | 714 |
| 621 | Environmental Sociology | 3 | 95 | 29 | 21 |
| 621 | occupational health and safety | 7 | 95 | 61 | 86 |
| 621 | Combinatorial chemistry | 3 | 95 | 649 | 791 |
| 621 | disease vectors | 2 | 95 | 1064 | 852 |
| 621 | Computer Literacy | 10 | 95 | 48 | 216 |
| 626 | Electrical Engineering | 21 | 94 | 1262 | 1947 |
| 626 | construction | 1 | 94 | 371 | 204 |
| 626 | lakes | 7 | 94 | 16 | 35 |
| 626 | Futures | 4 | 94 | 249 | 248 |
| 626 | children | 5 | 94 | 328 | 451 |
| 631 | Comparative Physiology | 5 | 93 | 589 | 752 |
| 631 | Psychometrics | 5 | 93 | 336 | 397 |
| 631 | Quantum Optics | 2 | 93 | 1028 | 665 |
| 631 | Atomic spectroscopy | 2 | 93 | 1273 | 870 |
| 631 | Laser Spectroscopy | 2 | 93 | 982 | 624 |
| 636 | Humanities | 14 | 91 | 628 | 1087 |
| 637 | Immunology | 4 | 90 | 2116 | 2306 |
| 637 | Oceanography | 5 | 90 | 1172 | 1382 |
| 637 | Religion | 14 | 90 | 321 | 366 |
| 637 | Herpetology | 16 | 90 | 59 | 198 |
| 637 | Hearing | 17 | 90 | 222 | 543 |
| 637 | Reptiles | 15 | 90 | 47 | 180 |
| 643 | Nanochemistry | 3 | 89 | 1257 | 1129 |
| 643 | Nutrition physiology | 3 | 89 | 662 | 689 |
| 645 | Ceramics | 8 | 88 | 858 | 1104 |
| 645 | Cultural diversity | 6 | 88 | 103 | 211 |
| 645 | Latin America | 10 | 88 | 638 | 605 |
| 648 | Number Theory | 14 | 86 | 304 | 376 |
| 648 | Critical Pedagogy | 8 | 86 | 17 | 30 |
| 648 | DNA repair | 4 | 86 | 212 | 294 |
| 648 | Agricultural systems | 2 | 86 | 365 | 383 |
| 652 | Multivariate Analysis | 5 | 85 | 416 | 459 |
| 652 | Structural Equation Modeling | 5 | 85 | 76 | 148 |
| 652 | Ethnology | 8 | 85 | 828 | 956 |
| 652 | Crystal growth | 4 | 85 | 889 | 985 |
| 656 | Demography | 3 | 84 | 624 | 627 |
| 656 | Communication Disorders | 3 | 84 | 301 | 234 |
| 656 | Comparative Advertising | 4 | 84 | 45 | 74 |
| 656 | world | 2 | 84 | 832 | 884 |
| 660 | Antioxidants | 1 | 83 | 1056 | 923 |
| 660 | Energy Harvesting | 1 | 83 | 650 | 671 |
| 660 | Vision | 2 | 83 | 720 | 663 |
| 660 | Sales Promotion | 8 | 83 | 15 | 51 |
| 660 | Oxidation-reduction | 1 | 83 | 1061 | 1004 |
| 665 | Stress | 5 | 82 | 154 | 313 |
| 666 | Mathematical Physics | 11 | 81 | 1615 | 1995 |
| 666 | Organizational learning | 9 | 81 | 80 | 308 |
| 666 | Emotions | 5 | 81 | 439 | 697 |
| 669 | Geriatric Nursing | 5 | 80 | 360 | 325 |
| 669 | Virtual reality | 1 | 80 | 753 | 400 |
| 669 | Social Issues | 5 | 80 | 174 | 295 |
| 669 | civilization | 8 | 80 | 634 | 312 |
| 669 | Women's health | 8 | 80 | 632 | 1035 |
| 674 | Simulation Methods | 6 | 79 | 648 | 907 |
| 674 | Biometrics | 4 | 79 | 825 | 835 |
| 676 | Mobile genetic elements | 1 | 78 | 209 | 109 |
| 676 | Virology | 3 | 78 | 2091 | 2331 |
| 676 | Proteome | 2 | 78 | 1128 | 1114 |
| 676 | Chromosomes | 6 | 78 | 571 | 936 |
| 676 | DNA | 1 | 78 | 967 | 529 |
| 681 | health and race | 4 | 77 | 141 | 194 |
| 681 | police psychology | 22 | 77 | 2 | 50 |
| 681 | ethnic groups | 4 | 77 | 262 | 316 |
| 681 | traffic safety | 6 | 77 | 152 | 231 |
| 685 | Metals | 2 | 76 | 2140 | 1721 |
| 686 | Transportation Engineering | 14 | 75 | 104 | 346 |
| 686 | Psychopharmacology | 4 | 75 | 1057 | 1323 |
| 686 | Electromagnetism | 1 | 75 | 1455 | 870 |
| 686 | Boundary Value Problems | 1 | 75 | 1231 | 644 |
| 686 | Antenna Arrays | 1 | 75 | 820 | 566 |
| 686 | Magnetic Resonance Spectroscopy | 9 | 75 | 629 | 868 |
| 686 | Scandinavia | 4 | 75 | 477 | 538 |
| 693 | Industrial Organization | 2 | 73 | 401 | 337 |
| 693 | Industrial Policy | 2 | 73 | 609 | 510 |
| 695 | Economic Development | 2 | 72 | 1775 | 1576 |
| 695 | technical education | 7 | 72 | 380 | 623 |
| 697 | Land Use Planning | 1 | 71 | 633 | 474 |
| 697 | Social Ethics | 6 | 71 | 91 | 101 |
| 697 | Computer-Aided Design | 5 | 71 | 916 | 1132 |
| 697 | biocatalysis | 1 | 71 | 300 | 432 |
| 697 | Homogeneous catalysis | 1 | 71 | 300 | 432 |
| 697 | school psychologists | 4 | 71 | 162 | 267 |
| 697 | Heterogeneous catalysis | 1 | 71 | 300 | 432 |
| 704 | International Relations | 12 | 70 | 460 | 721 |
| 704 | Metallurgy | 3 | 70 | 2023 | 1752 |
| 704 | Political Parties | 1 | 70 | 366 | 234 |
| 704 | Financial Institutions | 2 | 70 | 527 | 423 |
| 704 | paraphilias | 3 | 70 | 168 | 212 |
| 704 | Marriage counseling | 3 | 70 | 300 | 351 |
| 710 | Intelligent Transportation Systems | 4 | 69 | 933 | 1227 |
| 710 | Medical Microbiology | 1 | 69 | 2380 | 2044 |
| 710 | Pharmacokinetics | 1 | 69 | 1239 | 977 |
| 710 | women | 6 | 69 | 571 | 594 |
| 714 | environmental indicators | 4 | 68 | 984 | 1471 |
| 714 | Fuzzy systems | 2 | 68 | 2007 | 1362 |
| 716 | Stochastic Processes | 6 | 67 | 623 | 786 |
| 716 | Forensic Psychiatry | 10 | 67 | 250 | 470 |
| 716 | Radio wave propagation | 6 | 67 | 486 | 614 |
| 716 | Library Science | 11 | 67 | 350 | 607 |
| 720 | Biochemical Genetics | 4 | 66 | 354 | 273 |
| 720 | international trade | 4 | 66 | 625 | 682 |
| 720 | curriculum evaluation | 3 | 66 | 381 | 391 |
| 720 | Glass | 3 | 66 | 1011 | 1064 |
| 720 | commerce | 4 | 66 | 1361 | 1525 |
| 720 | pottery | 3 | 66 | 957 | 1039 |
| 720 | Cell metabolism | 1 | 66 | 983 | 951 |
| 727 | Political Geography | 5 | 65 | 203 | 325 |
| 727 | Photography | 36 | 65 | 314 | 391 |
| 727 | Health Services Research | 7 | 65 | 896 | 1343 |
| 727 | Biomass Energy | 4 | 65 | 2012 | 2625 |
| 727 | organizational effectiveness | 6 | 65 | 221 | 475 |
| 727 | homosexuality | 5 | 65 | 280 | 443 |
| 727 | Microwaves | 3 | 65 | 1215 | 1038 |
| 734 | Symbolic interactionism | 4 | 64 | 87 | 118 |
| 734 | Communication in marketing | 2 | 64 | 204 | 203 |
| 734 | urban forestry | 5 | 64 | 129 | 313 |
| 734 | language | 7 | 64 | 493 | 881 |
| 738 | Ethnic Conflict | 2 | 63 | 326 | 324 |
| 738 | forced migration | 2 | 63 | 326 | 324 |
| 738 | Adult learning | 5 | 63 | 13 | 31 |
| 738 | non-formal education | 5 | 63 | 13 | 31 |
| 742 | Macroeconomics | 4 | 62 | 324 | 341 |
| 742 | Dance | 17 | 62 | 64 | 118 |
| 742 | Bioremediation | 1 | 62 | 1467 | 1149 |
| 742 | Biodegradation | 1 | 62 | 1278 | 1007 |
| 742 | Light | 4 | 62 | 744 | 1097 |
| 747 | Solar Energy | 5 | 61 | 1362 | 2101 |
| 747 | Labor Supply | 2 | 61 | 82 | 119 |
| 747 | Development | 1 | 61 | 1230 | 995 |
| 747 | Detectors | 5 | 61 | 1181 | 1571 |
| 747 | Economic Assistance | 1 | 61 | 1121 | 915 |
| 752 | Seismology | 2 | 60 | 532 | 453 |
| 752 | bioclimatology | 2 | 60 | 1140 | 1070 |
| 752 | Antibodies | 1 | 60 | 758 | 571 |
| 752 | Antigens | 1 | 60 | 929 | 734 |
| 752 | Sociobiology | 3 | 60 | 211 | 239 |
| 757 | Chromatography | 4 | 59 | 1324 | 1545 |
| 757 | Chromatographic analysis | 4 | 59 | 1506 | 1646 |
| 757 | health planning | 10 | 59 | 1172 | 2064 |
| 760 | Photogrammetry | 5 | 58 | 600 | 403 |
| 760 | Mass Media | 8 | 58 | 446 | 544 |
| 762 | Computer Science | 8 | 57 | 1257 | 1827 |
| 762 | Proteomics | 3 | 57 | 952 | 1206 |
| 762 | Queer Studies | 4 | 57 | 230 | 385 |
| 762 | Community Psychiatry | 2 | 57 | 1011 | 1076 |
| 762 | Professional ethics | 6 | 57 | 126 | 334 |
| 762 | environmental exposure | 6 | 57 | 1281 | 2211 |
| 762 | livestock | 4 | 57 | 421 | 466 |
| 762 | Export Marketing | 6 | 57 | 84 | 386 |
| 762 | World Wide Web | 6 | 57 | 193 | 334 |
| 762 | Investments | 8 | 57 | 192 | 513 |
| 772 | Paleoclimatology | 4 | 56 | 905 | 1202 |
| 772 | Psychosomatic Medicine | 1 | 56 | 1062 | 860 |
| 772 | occupational diseases | 2 | 56 | 866 | 927 |
| 772 | Citizenship | 2 | 56 | 191 | 184 |
| 772 | Cement | 4 | 56 | 495 | 856 |
| 772 | Yeast | 2 | 56 | 500 | 563 |
| 772 | investigative techniques | 2 | 56 | 170 | 264 |
| 779 | extraterrestrial environment | 3 | 55 | 559 | 575 |
| 780 | Agricultural Science | 2 | 54 | 250 | 371 |
| 780 | Medical genetics | 2 | 54 | 1892 | 2133 |
| 782 | Electrochemical Analysis | 5 | 53 | 1261 | 1701 |
| 782 | Photobiology | 2 | 53 | 1613 | 1599 |
| 782 | telemarketing | 3 | 53 | 86 | 193 |
| 782 | Culture | 10 | 53 | 538 | 895 |
| 786 | Geometry | 9 | 52 | 688 | 836 |
| 786 | Tribology | 5 | 52 | 880 | 1204 |
| 786 | Teratology | 2 | 52 | 308 | 326 |
| 786 | Environmental Psychology | 4 | 52 | 277 | 642 |
| 786 | Petrology | 2 | 52 | 952 | 991 |
| 786 | Food Security | 2 | 52 | 190 | 266 |
| 786 | abnormalities | 2 | 52 | 186 | 214 |
| 786 | Liquid chromatography | 4 | 52 | 402 | 387 |
| 794 | Mechatronics | 1 | 51 | 1413 | 1083 |
| 794 | particle accelerators | 1 | 51 | 195 | 140 |
| 794 | Borderlands | 6 | 51 | 18 | 45 |
| 794 | pain | 1 | 51 | 1593 | 1308 |
| 798 | Dietetics | 9 | 50 | 286 | 579 |
| 798 | Capital market | 1 | 50 | 810 | 625 |
| 798 | Microorganisms | 4 | 50 | 813 | 1333 |
| 801 | Nonverbal Communication | 2 | 49 | 255 | 361 |
| 801 | Freshwater invertebrates | 3 | 49 | 190 | 325 |
| 801 | Regionalism | 2 | 49 | 294 | 255 |
| 801 | Body language | 2 | 49 | 151 | 266 |
| 801 | RNA | 2 | 49 | 558 | 677 |
| 806 | Soil Mechanics | 2 | 48 | 1168 | 1175 |
| 806 | Language and Education | 5 | 48 | 77 | 143 |
| 806 | dietary supplements | 1 | 48 | 1412 | 1216 |
| 809 | Pharmacognosy | 1 | 47 | 2465 | 2250 |
| 809 | Rural Development | 1 | 47 | 898 | 691 |
| 809 | Psychiatric Nursing | 4 | 47 | 568 | 752 |
| 809 | Communication and Culture | 8 | 47 | 108 | 273 |
| 809 | Material Culture | 5 | 47 | 63 | 120 |
| 809 | motivation | 1 | 47 | 658 | 484 |
| 809 | Lightweight concrete | 1 | 47 | 700 | 846 |
| 809 | Emotion | 1 | 47 | 406 | 373 |
| 809 | Fashion | 3 | 47 | 133 | 161 |
| 818 | Discrete Mathematics | 6 | 46 | 203 | 190 |
| 818 | Melanoma | 3 | 46 | 181 | 307 |
| 818 | graph | 6 | 46 | 203 | 190 |
| 818 | Organometallic compounds | 3 | 46 | 1297 | 1443 |
| 822 | Information Theory | 2 | 45 | 1508 | 1413 |
| 822 | Genetic Toxicology | 2 | 45 | 527 | 721 |
| 822 | Psychoneuroimmunology | 1 | 45 | 854 | 915 |
| 822 | Phonetics | 2 | 45 | 404 | 413 |
| 822 | Engineering Geology | 3 | 45 | 1305 | 1565 |
| 822 | Biofeedback | 1 | 45 | 240 | 231 |
| 822 | Spirituality | 4 | 45 | 37 | 36 |
| 822 | Neuroimmunology | 1 | 45 | 952 | 991 |
| 822 | water resources | 1 | 45 | 353 | 200 |
| 822 | Matroids | 3 | 45 | 248 | 290 |
| 822 | Hedge funds | 2 | 45 | 22 | 25 |
| 822 | biological invasions | 6 | 45 | 384 | 834 |
| 822 | astronomical phenomena | 2 | 45 | 639 | 608 |
| 822 | Genes | 6 | 45 | 714 | 1300 |
| 836 | Organizational Sociology | 3 | 44 | 362 | 496 |
| 836 | Palliative Care | 1 | 44 | 1188 | 786 |
| 836 | hospice care | 1 | 44 | 838 | 573 |
| 836 | Paleogeography | 2 | 44 | 1033 | 1161 |
| 836 | Primary health care | 4 | 44 | 1287 | 1680 |
| 836 | Fashion merchandising | 2 | 44 | 50 | 86 |
| 836 | Biomass | 1 | 44 | 1202 | 1157 |
| 836 | Urban Areas | 3 | 44 | 223 | 298 |
| 844 | Orthopedics | 5 | 43 | 980 | 1338 |
| 844 | fuel cells | 2 | 43 | 1356 | 1545 |
| 844 | Tropical Medicine | 1 | 43 | 2263 | 1774 |
| 844 | Amphibians | 10 | 43 | 61 | 227 |
| 848 | Political Sociology | 4 | 42 | 385 | 545 |
| 848 | Regional Economics | 2 | 42 | 586 | 574 |
| 848 | Microbial Genetics | 3 | 42 | 321 | 524 |
| 848 | phytopathogenic bacteria | 3 | 42 | 220 | 433 |
| 848 | Water Microbiology | 5 | 42 | 266 | 701 |
| 848 | Africa | 7 | 42 | 939 | 1356 |
| 848 | cultural pluralism | 3 | 42 | 416 | 510 |
| 855 | Geotechnical Engineering | 2 | 41 | 564 | 563 |
| 855 | Magnetic Materials | 2 | 41 | 1620 | 1653 |
| 855 | Religion and Psychology | 4 | 41 | 410 | 603 |
| 855 | primary prevention | 4 | 41 | 291 | 590 |
| 855 | Auditing | 4 | 41 | 317 | 555 |
| 855 | Prisons | 6 | 41 | 187 | 315 |
| 855 | Steroids | 5 | 41 | 650 | 1104 |
| 862 | Agronomy | 2 | 40 | 507 | 738 |
| 862 | Aesthetics | 3 | 40 | 205 | 91 |
| 862 | Food additives | 5 | 40 | 776 | 1599 |
| 862 | nuclear magnetic resonance | 6 | 40 | 672 | 939 |
| 862 | Investment analysis | 7 | 40 | 537 | 1153 |
| 862 | chronic disease | 3 | 40 | 257 | 395 |
| 862 | Molecular structure | 3 | 40 | 2356 | 2509 |
| 862 | Credit | 1 | 40 | 215 | 182 |
| 862 | Money | 1 | 40 | 661 | 616 |
| 862 | Mollusks | 5 | 40 | 112 | 194 |
| 872 | Political Psychology | 4 | 39 | 285 | 540 |
| 872 | Divorce | 4 | 39 | 105 | 174 |
| 872 | Heterocyclic chemistry | 3 | 39 | 548 | 505 |
| 875 | Occupational Therapy | 8 | 38 | 529 | 867 |
| 875 | Surveying | 3 | 38 | 117 | 108 |
| 875 | Nuclear Energy | 1 | 38 | 1459 | 987 |
| 875 | Neurolinguistics | 1 | 38 | 672 | 660 |
| 875 | Radiation | 2 | 38 | 2284 | 2130 |
| 875 | Religion and Culture | 5 | 38 | 155 | 326 |
| 881 | Mechanical Engineering | 3 | 37 | 2286 | 2269 |
| 881 | Otolaryngology | 1 | 37 | 731 | 586 |
| 881 | Cloud Computing | 2 | 37 | 442 | 595 |
| 881 | Control Theory | 1 | 37 | 2256 | 1787 |
| 881 | radiative transfer | 1 | 37 | 911 | 675 |
| 881 | Crisis management | 3 | 37 | 118 | 230 |
| 881 | body temperature | 5 | 37 | 346 | 803 |
| 881 | baking | 2 | 37 | 219 | 307 |
| 881 | Mites | 2 | 37 | 497 | 481 |
| 890 | Anatomy | 3 | 36 | 1722 | 1998 |
| 890 | Combinatorial optimization | 3 | 36 | 534 | 498 |
| 890 | Hallucinogens | 3 | 36 | 152 | 296 |
| 890 | Social support | 2 | 36 | 190 | 280 |
| 890 | Social environment | 2 | 36 | 197 | 286 |
| 890 | scientific societies | 2 | 36 | 845 | 955 |
| 896 | Linguistics | 11 | 35 | 683 | 1314 |
| 896 | Mycotoxins | 1 | 35 | 274 | 227 |
| 896 | environmental control | 1 | 35 | 360 | 353 |
| 896 | nuclear magnetic resonance spectroscopy | 3 | 35 | 714 | 793 |
| 896 | Arthropods | 3 | 35 | 218 | 332 |
| 896 | explosives | 2 | 35 | 228 | 167 |
| 896 | NMR | 3 | 35 | 556 | 614 |
| 896 | listening | 1 | 35 | 77 | 51 |
| 896 | Acarology | 2 | 35 | 365 | 416 |
| 896 | magnetic resonance | 3 | 35 | 562 | 627 |
| 896 | identity recognition | 1 | 35 | 93 | 71 |
| 896 | Ticks | 1 | 35 | 503 | 414 |
| 896 | Acari | 1 | 35 | 503 | 414 |
| 909 | Marine Meteorology | 1 | 34 | 447 | 439 |
| 909 | animals | 5 | 34 | 945 | 1367 |
| 909 | Customer Relations | 1 | 34 | 185 | 142 |
| 909 | Insect biochemistry | 1 | 34 | 709 | 707 |
| 913 | Telecommunication Systems | 5 | 33 | 1287 | 1789 |
| 913 | big data | 2 | 33 | 843 | 923 |
| 915 | Ophthalmology | 3 | 32 | 1413 | 1780 |
| 915 | Cultural Studies | 3 | 32 | 123 | 224 |
| 915 | Cybernetics | 4 | 32 | 1318 | 1954 |
| 915 | International Education | 3 | 32 | 238 | 407 |
| 915 | foreign exchange | 2 | 32 | 443 | 600 |
| 915 | residential treatment | 2 | 32 | 195 | 254 |
| 921 | Restoration Ecology | 2 | 31 | 504 | 661 |
| 921 | Organometallic chemistry | 3 | 31 | 2092 | 2405 |
| 921 | Travel | 4 | 31 | 596 | 1070 |
| 921 | probabilities | 2 | 31 | 1467 | 1237 |
| 921 | educational planning | 2 | 31 | 522 | 698 |
| 926 | Telecommunications | 2 | 30 | 1019 | 1044 |
| 926 | General Surgery | 3 | 30 | 471 | 560 |
| 926 | Combustion | 1 | 30 | 1690 | 1589 |
| 926 | Electrophoresis | 3 | 30 | 1473 | 1980 |
| 926 | Immunochemistry | 3 | 30 | 898 | 1232 |
| 926 | Broadcasting | 1 | 30 | 358 | 318 |
| 926 | security measures | 2 | 30 | 82 | 105 |
| 926 | drug therapy | 3 | 30 | 1475 | 1958 |
| 926 | Chemical industry | 1 | 30 | 1879 | 1600 |
| 926 | immunoassay | 3 | 30 | 180 | 273 |
| 926 | Sleep | 6 | 30 | 933 | 1603 |
| 937 | History | 13 | 29 | 539 | 588 |
| 937 | Mobile Computing | 4 | 29 | 957 | 1386 |
| 937 | Sociolinguistics | 3 | 29 | 471 | 601 |
| 937 | Histochemistry | 1 | 29 | 1432 | 1276 |
| 937 | intergroup relations | 1 | 29 | 366 | 407 |
| 937 | Sexual health | 3 | 29 | 643 | 850 |
| 937 | Legal Ethics | 2 | 29 | 62 | 24 |
| 937 | Chemical analysis | 3 | 29 | 1085 | 1579 |
| 937 | movement | 3 | 29 | 337 | 650 |
| 937 | software | 2 | 29 | 1247 | 1630 |
| 937 | Post-traumatic stress disorder | 4 | 29 | 607 | 1136 |
| 937 | sports injuries | 2 | 29 | 682 | 772 |
| 949 | Histology | 2 | 28 | 1807 | 2204 |
| 949 | poverty | 4 | 28 | 290 | 717 |
| 949 | Integrated Circuits | 3 | 28 | 808 | 775 |
| 949 | Postcolonialism | 1 | 28 | 267 | 142 |
| 949 | drinking water | 1 | 28 | 269 | 190 |
| 949 | Nonprofit organizations | 2 | 28 | 455 | 622 |
| 949 | heredity | 2 | 28 | 739 | 873 |
| 949 | Relationships | 3 | 28 | 157 | 336 |
| 949 | crime victims | 1 | 28 | 338 | 280 |
| 949 | textile fibers | 4 | 28 | 343 | 619 |
| 949 | masculinity | 2 | 28 | 108 | 241 |
| 960 | Fluid Mechanics | 2 | 27 | 1652 | 1776 |
| 960 | Human Rights | 3 | 27 | 554 | 754 |
| 960 | Statistical Mechanics | 2 | 27 | 751 | 749 |
| 960 | Magnetohydrodynamics | 2 | 27 | 283 | 309 |
| 960 | Hematopoietic stem cell transplantation | 1 | 27 | 634 | 738 |
| 960 | Quantum Gravity | 4 | 27 | 1683 | 2038 |
| 960 | Friction | 2 | 27 | 143 | 308 |
| 960 | Stem cells | 1 | 27 | 1532 | 1645 |
| 960 | child sexual abuse | 2 | 27 | 201 | 317 |
| 960 | weather forecasting | 1 | 27 | 305 | 354 |
| 960 | Alzheimer's disease | 4 | 27 | 1039 | 1202 |
| 960 | prostaglandins | 2 | 27 | 491 | 662 |
| 960 | enzymes | 2 | 27 | 1593 | 2011 |
| 973 | Restorative justice | 2 | 26 | 208 | 236 |
| 973 | micromechanics | 2 | 26 | 733 | 903 |
| 973 | Adhesion | 1 | 26 | 1180 | 1050 |
| 973 | Exercise therapy | 4 | 26 | 362 | 670 |
| 973 | Outdoor Education | 4 | 26 | 47 | 145 |
| 973 | machinery | 2 | 26 | 1006 | 1148 |
| 973 | carcinogens | 2 | 26 | 1023 | 1412 |
| 973 | disease outbreaks | 1 | 26 | 700 | 803 |
| 973 | adhesives | 1 | 26 | 1246 | 1069 |
| 973 | United Kingdom | 2 | 26 | 1493 | 1788 |
| 973 | India | 2 | 26 | 1852 | 1566 |
| 973 | wildlife diseases | 3 | 26 | 151 | 238 |
| 985 | Industrial Design | 1 | 25 | 483 | 504 |
| 985 | War | 1 | 25 | 394 | 320 |
| 985 | Diagnostic Imaging | 4 | 25 | 1404 | 2026 |
| 985 | solar power | 2 | 25 | 993 | 1458 |
| 985 | Bilingualism | 3 | 25 | 145 | 297 |
| 985 | Raman spectroscopy | 2 | 25 | 962 | 1249 |
| 985 | Phylogenetics | 1 | 25 | 217 | 190 |
| 985 | solar cells | 2 | 25 | 1056 | 1533 |
| 985 | civil war | 1 | 25 | 111 | 74 |
| 985 | Informatics | 1 | 25 | 1262 | 1264 |
| 985 | Breeding | 7 | 25 | 714 | 1580 |
| 996 | Speech-Language Pathology | 18 | 24 | 38 | 494 |
| 996 | Obstetrics | 3 | 24 | 1707 | 2261 |
| 996 | Music Therapy | 1 | 24 | 418 | 354 |
| 996 | Art Therapy | 1 | 24 | 389 | 328 |
| 996 | Greenhouse gases | 1 | 24 | 461 | 644 |