| 1 | Astrophysics | 217 | 24.3K | 593 | 427 |
| 2 | Science | 223 | 22.3K | 1429 | 1146 |
| 3 | Spectrum analysis | 200 | 21.6K | 513 | 284 |
| 4 | Biology | 307 | 20.2K | 1050 | 1200 |
| 5 | Ecology | 204 | 19.3K | 739 | 489 |
| 6 | Physics | 153 | 14.0K | 1995 | 1682 |
| 7 | Psychology | 235 | 10.0K | 428 | 368 |
| 8 | United States | 456 | 9.6K | 234 | 301 |
| 9 | Natural history | 58 | 9.3K | 932 | 1245 |
| 10 | Medicine | 164 | 6.7K | 1918 | 1890 |
| 11 | Oceanography | 98 | 6.1K | 279 | 197 |
| 12 | Sociology | 82 | 6.1K | 431 | 214 |
| 13 | Astronomy | 100 | 6.0K | 789 | 719 |
| 14 | Biochemistry | 174 | 5.4K | 1784 | 1905 |
| 15 | Nuclear Physics | 163 | 5.3K | 963 | 883 |
| 16 | Molecular Biology | 88 | 5.3K | 2168 | 1855 |
| 17 | Optics | 104 | 4.9K | 916 | 418 |
| 18 | Algal blooms | 17 | 4.9K | 70 | 7 |
| 18 | Cyanobacteria | 17 | 4.9K | 70 | 7 |
| 18 | microalgae | 17 | 4.9K | 70 | 7 |
| 21 | Public Health | 79 | 4.9K | 1204 | 763 |
| 22 | Education | 152 | 4.9K | 394 | 236 |
| 23 | Social Psychology | 80 | 4.7K | 332 | 263 |
| 24 | management | 77 | 4.6K | 576 | 470 |
| 25 | Behavior | 63 | 4.2K | 665 | 496 |
| 26 | Psychiatry | 88 | 4.2K | 936 | 877 |
| 27 | Environment | 64 | 4.1K | 1154 | 1179 |
| 28 | Marine Biology | 75 | 4.1K | 520 | 330 |
| 29 | Research | 137 | 4.0K | 1644 | 1769 |
| 30 | Microbiology | 56 | 4.0K | 2158 | 1643 |
| 31 | personality | 40 | 3.9K | 341 | 195 |
| 32 | Geography | 24 | 3.8K | 871 | 203 |
| 33 | Entrepreneurship | 14 | 3.7K | 373 | 105 |
| 34 | homosexuality | 111 | 3.7K | 4 | 5 |
| 35 | Evolution | 38 | 3.6K | 518 | 343 |
| 36 | Molecular Genetics | 48 | 3.6K | 447 | 290 |
| 37 | biological evolution | 49 | 3.6K | 469 | 427 |
| 38 | Pollution | 47 | 3.3K | 1680 | 1301 |
| 39 | Gender Studies | 98 | 3.3K | 3 | 2 |
| 40 | Queer Studies | 97 | 3.3K | 2 | 2 |
| 41 | Child Development | 74 | 3.3K | 313 | 283 |
| 42 | Neurology | 42 | 3.2K | 2127 | 1594 |
| 43 | Pediatrics | 31 | 3.2K | 974 | 526 |
| 44 | Genetics | 57 | 3.2K | 1048 | 1083 |
| 45 | Quantum Gravity | 129 | 3.1K | 445 | 546 |
| 46 | Environmental Health | 39 | 3.0K | 1767 | 1119 |
| 47 | Population Genetics | 33 | 2.9K | 325 | 205 |
| 48 | Molecular ecology | 29 | 2.9K | 325 | 214 |
| 49 | Emotions | 30 | 2.8K | 103 | 52 |
| 50 | Small Business | 12 | 2.8K | 317 | 93 |
| 51 | Business | 53 | 2.8K | 376 | 363 |
| 52 | Biogeography | 9 | 2.8K | 643 | 157 |
| 53 | Psychophysiology | 67 | 2.7K | 683 | 693 |
| 54 | Microbial Ecology | 31 | 2.6K | 759 | 604 |
| 55 | Chemistry | 62 | 2.6K | 3306 | 3151 |
| 56 | marketing | 53 | 2.5K | 322 | 328 |
| 57 | Animal Behavior | 49 | 2.5K | 448 | 413 |
| 58 | Adolescent | 38 | 2.4K | 536 | 248 |
| 59 | Mycology | 77 | 2.4K | 174 | 215 |
| 60 | Biophysics | 67 | 2.3K | 1735 | 1527 |
| 61 | Physiology | 43 | 2.2K | 1470 | 1133 |
| 62 | Mathematics | 179 | 2.2K | 966 | 955 |
| 63 | Child | 51 | 2.1K | 554 | 359 |
| 64 | Nonverbal Communication | 42 | 2.0K | 6 | 4 |
| 65 | Earth Sciences | 14 | 1.9K | 1910 | 708 |
| 66 | Child psychology | 63 | 1.9K | 268 | 382 |
| 67 | Environmental Engineering | 13 | 1.9K | 2306 | 897 |
| 68 | Special Education | 65 | 1.9K | 87 | 72 |
| 69 | Health | 32 | 1.9K | 667 | 372 |
| 70 | Medical Anthropology | 27 | 1.8K | 340 | 270 |
| 71 | Ethology | 39 | 1.8K | 383 | 428 |
| 72 | sanitation | 10 | 1.8K | 1005 | 555 |
| 73 | motivation | 14 | 1.8K | 88 | 22 |
| 73 | Emotion | 14 | 1.8K | 34 | 16 |
| 75 | Mental Disorders | 20 | 1.8K | 1544 | 960 |
| 76 | Economics | 71 | 1.7K | 1026 | 894 |
| 77 | Nursing | 35 | 1.7K | 411 | 145 |
| 78 | Tourism | 31 | 1.7K | 351 | 310 |
| 79 | innovation | 6 | 1.7K | 438 | 144 |
| 80 | Water | 15 | 1.6K | 1307 | 790 |
| 81 | Social Sciences | 85 | 1.6K | 491 | 444 |
| 82 | Venture Capital | 4 | 1.6K | 235 | 106 |
| 83 | Geriatrics | 84 | 1.5K | 501 | 688 |
| 84 | Health Education | 59 | 1.5K | 314 | 325 |
| 85 | Hydrology | 14 | 1.4K | 1387 | 579 |
| 86 | health behavior | 30 | 1.4K | 243 | 177 |
| 87 | Geophysics | 31 | 1.4K | 1547 | 1253 |
| 88 | Botany | 60 | 1.4K | 1108 | 1439 |
| 88 | Public Policy | 51 | 1.4K | 276 | 300 |
| 90 | Conservation Biology | 31 | 1.4K | 247 | 276 |
| 91 | Technology | 23 | 1.4K | 1787 | 900 |
| 92 | Molecular evolution | 33 | 1.4K | 425 | 442 |
| 93 | Vocational guidance | 43 | 1.4K | 162 | 192 |
| 94 | Cognition | 42 | 1.4K | 421 | 446 |
| 95 | Pharmaceutical Chemistry | 34 | 1.3K | 1474 | 1352 |
| 96 | organization | 8 | 1.3K | 470 | 247 |
| 97 | water supply | 11 | 1.3K | 523 | 270 |
| 98 | environmental pollution | 28 | 1.3K | 1762 | 1604 |
| 99 | Meteorology | 25 | 1.3K | 931 | 867 |
| 100 | Food service management | 13 | 1.3K | 110 | 50 |
| 101 | Educational Psychology | 17 | 1.3K | 606 | 324 |
| 102 | Developmental Biology | 31 | 1.3K | 743 | 903 |
| 103 | Planets | 17 | 1.3K | 881 | 691 |
| 104 | Schizophrenia | 9 | 1.3K | 781 | 348 |
| 105 | Biogeochemical cycles | 9 | 1.2K | 282 | 200 |
| 106 | Neuropsychology | 17 | 1.2K | 1175 | 681 |
| 107 | Parasitology | 41 | 1.2K | 629 | 551 |
| 108 | Toxicology | 23 | 1.2K | 2297 | 1738 |
| 109 | Plant cells | 9 | 1.2K | 806 | 705 |
| 110 | Communication | 54 | 1.2K | 358 | 365 |
| 111 | Wildlife conservation | 24 | 1.2K | 383 | 385 |
| 112 | individual differences | 3 | 1.2K | 279 | 24 |
| 113 | Sexuality | 36 | 1.1K | 15 | 8 |
| 114 | Psychiatric Nursing | 5 | 1.1K | 575 | 29 |
| 115 | older people | 75 | 1.1K | 234 | 210 |
| 116 | Public Administration | 28 | 1.1K | 393 | 221 |
| 117 | Philosophy | 62 | 1.1K | 332 | 164 |
| 118 | Materials | 13 | 1.1K | 3930 | 2423 |
| 119 | Body language | 10 | 1.1K | 16 | 7 |
| 119 | Gerontology | 72 | 1.1K | 321 | 412 |
| 121 | counseling | 48 | 1.1K | 237 | 282 |
| 122 | Linguistics | 20 | 1.1K | 576 | 239 |
| 123 | Biomedical Engineering | 14 | 1.1K | 3053 | 1669 |
| 124 | Birds | 29 | 1.1K | 371 | 207 |
| 125 | Asia | 33 | 1.0K | 662 | 324 |
| 126 | Developmental Psychology | 33 | 1.0K | 252 | 348 |
| 127 | sexual behavior | 30 | 1.0K | 103 | 126 |
| 128 | Zoology | 35 | 1.0K | 856 | 653 |
| 129 | Social behavior | 18 | 991 | 442 | 351 |
| 130 | Fisheries | 12 | 989 | 991 | 461 |
| 131 | Europe | 11 | 987 | 2137 | 849 |
| 132 | Aging | 75 | 984 | 545 | 976 |
| 133 | Nervous system | 8 | 979 | 1997 | 1155 |
| 134 | Neurotoxicology | 13 | 970 | 175 | 81 |
| 134 | Production Management | 9 | 970 | 642 | 447 |
| 136 | Culture | 25 | 968 | 270 | 89 |
| 137 | Mass Spectrometry | 14 | 957 | 624 | 316 |
| 138 | Organic Chemistry | 41 | 953 | 1091 | 1194 |
| 139 | ecosystem | 15 | 949 | 629 | 511 |
| 140 | Portfolio Management | 10 | 945 | 137 | 25 |
| 141 | civil rights | 27 | 941 | 34 | 7 |
| 142 | Decision making | 11 | 929 | 783 | 353 |
| 143 | city planning | 20 | 926 | 572 | 328 |
| 144 | Animal ecology | 14 | 919 | 596 | 363 |
| 145 | Biodiversity | 19 | 908 | 951 | 802 |
| 146 | Political Science | 59 | 890 | 345 | 390 |
| 147 | Psycholinguistics | 19 | 879 | 347 | 304 |
| 148 | commerce | 12 | 877 | 798 | 418 |
| 149 | Investments | 8 | 876 | 269 | 34 |
| 150 | Post-traumatic stress disorder | 11 | 864 | 383 | 219 |
| 151 | Mental Health | 25 | 854 | 508 | 344 |
| 152 | Plant physiology | 15 | 845 | 1126 | 978 |
| 153 | Cerebral cortex | 3 | 842 | 1123 | 401 |
| 154 | Pharmacology | 12 | 835 | 3842 | 2603 |
| 155 | Physical Therapy | 17 | 831 | 570 | 455 |
| 156 | Information Technology | 7 | 828 | 1907 | 499 |
| 157 | rehabilitation | 34 | 827 | 581 | 700 |
| 158 | Geology | 25 | 821 | 1375 | 1168 |
| 159 | Statistical physics | 24 | 819 | 1776 | 1375 |
| 160 | Algae | 16 | 808 | 325 | 232 |
| 160 | Entomology | 20 | 808 | 1104 | 626 |
| 162 | adolescence | 21 | 801 | 281 | 296 |
| 163 | Seaweed | 15 | 797 | 230 | 180 |
| 164 | Family | 23 | 794 | 287 | 229 |
| 165 | Fishery management | 4 | 792 | 916 | 177 |
| 166 | Biogeochemistry | 5 | 785 | 1042 | 568 |
| 167 | Business Ethics | 6 | 781 | 665 | 418 |
| 168 | Fisheries Law | 3 | 775 | 183 | 41 |
| 168 | fisheries management | 3 | 775 | 183 | 41 |
| 170 | Earthquake Engineering | 29 | 774 | 378 | 418 |
| 171 | Materials Science | 9 | 771 | 3595 | 2182 |
| 172 | Speech Disorders | 33 | 770 | 273 | 308 |
| 173 | Social policy | 31 | 767 | 193 | 162 |
| 174 | Environmental Policy | 6 | 763 | 2834 | 1532 |
| 175 | Phylogeny | 18 | 753 | 294 | 325 |
| 176 | Parasitic Diseases | 18 | 745 | 957 | 832 |
| 177 | Biotechnology | 11 | 741 | 4467 | 3369 |
| 178 | Nutrition | 22 | 739 | 2134 | 2101 |
| 179 | language | 23 | 731 | 214 | 215 |
| 180 | Geomorphology | 15 | 730 | 640 | 552 |
| 181 | Harmonic Analysis | 6 | 725 | 77 | 32 |
| 182 | Estuaries | 12 | 716 | 70 | 72 |
| 183 | Microorganisms | 4 | 705 | 1273 | 627 |
| 184 | complementary therapies | 18 | 704 | 753 | 436 |
| 185 | Ornithology | 18 | 697 | 391 | 233 |
| 186 | Cultural diversity | 10 | 687 | 68 | 41 |
| 187 | Applied Linguistics | 5 | 679 | 462 | 87 |
| 188 | Strategic planning | 3 | 673 | 860 | 154 |
| 189 | Genomics | 22 | 670 | 1501 | 1621 |
| 189 | Teaching | 35 | 670 | 372 | 415 |
| 191 | Social work | 40 | 662 | 315 | 313 |
| 192 | Clinical Psychology | 17 | 648 | 679 | 802 |
| 193 | behavior therapy | 21 | 644 | 304 | 327 |
| 194 | Systems Engineering | 4 | 634 | 2225 | 505 |
| 195 | Cytology | 21 | 629 | 2346 | 3000 |
| 196 | Adolescent Psychology | 15 | 623 | 335 | 319 |
| 197 | Intercultural Communication | 11 | 615 | 114 | 44 |
| 197 | Cross-Cultural Studies | 11 | 615 | 247 | 93 |
| 199 | Community Psychology | 10 | 614 | 292 | 238 |
| 200 | Solar System | 9 | 610 | 593 | 422 |
| 201 | plant communities | 9 | 609 | 701 | 588 |
| 202 | Bacteriology | 3 | 608 | 2442 | 1173 |
| 203 | Health promotion | 29 | 602 | 426 | 584 |
| 204 | Mental illness | 12 | 600 | 1293 | 1261 |
| 205 | human behavior | 17 | 597 | 1128 | 1489 |
| 205 | Classification | 1 | 597 | 644 | 71 |
| 207 | Speech | 21 | 595 | 277 | 325 |
| 208 | plant molecular biology | 10 | 588 | 962 | 1038 |
| 209 | Bioorganic chemistry | 25 | 583 | 1167 | 1433 |
| 210 | genome | 11 | 582 | 966 | 1157 |
| 211 | Structural Engineering | 19 | 581 | 696 | 535 |
| 212 | Sports | 49 | 578 | 468 | 759 |
| 213 | Economic History | 26 | 577 | 1374 | 1077 |
| 214 | medical education | 5 | 574 | 1880 | 617 |
| 215 | behavioral medicine | 12 | 570 | 665 | 634 |
| 216 | Alternative Medicine | 12 | 565 | 972 | 533 |
| 217 | Brain | 15 | 563 | 1622 | 1552 |
| 218 | miniaturization | 5 | 562 | 1735 | 1119 |
| 219 | violence | 14 | 559 | 404 | 334 |
| 220 | families | 16 | 557 | 307 | 206 |
| 221 | Community Psychiatry | 11 | 555 | 548 | 418 |
| 222 | preventive medicine | 14 | 550 | 674 | 665 |
| 222 | finance | 41 | 550 | 540 | 820 |
| 224 | Artificial Intelligence | 20 | 538 | 1695 | 1583 |
| 225 | Anatomy | 16 | 535 | 1043 | 1044 |
| 226 | Quality of life | 8 | 534 | 1048 | 670 |
| 227 | Intellectual disability | 33 | 531 | 180 | 298 |
| 228 | Diet | 14 | 529 | 1191 | 1299 |
| 229 | Cell Biology | 11 | 523 | 3052 | 3208 |
| 230 | Clinical Chemistry | 16 | 522 | 1671 | 1749 |
| 231 | behavior modification | 7 | 518 | 284 | 226 |
| 232 | Marine mammals | 21 | 510 | 68 | 89 |
| 233 | Parasites | 15 | 508 | 751 | 601 |
| 234 | glycoproteins | 14 | 506 | 152 | 201 |
| 234 | Glycoconjugates | 14 | 506 | 152 | 201 |
| 234 | glycolipids | 14 | 506 | 152 | 201 |
| 237 | environmental protection | 9 | 504 | 2537 | 1809 |
| 238 | Developmental Disabilities | 17 | 484 | 406 | 536 |
| 239 | ethnicity | 25 | 483 | 126 | 98 |
| 240 | Sports Medicine | 22 | 479 | 1115 | 1112 |
| 241 | Mental Health Services | 11 | 478 | 737 | 450 |
| 241 | Growth | 10 | 478 | 810 | 955 |
| 243 | Proteomics | 9 | 476 | 712 | 592 |
| 244 | Oligosaccharide | 10 | 470 | 128 | 155 |
| 244 | Carbohydrates | 10 | 470 | 200 | 193 |
| 246 | Anthropology | 77 | 467 | 211 | 527 |
| 246 | Embryology | 12 | 467 | 1024 | 1180 |
| 246 | Wireless Communication Systems | 47 | 467 | 328 | 585 |
| 249 | Cognitive Psychology | 4 | 466 | 382 | 62 |
| 250 | Information Science | 8 | 465 | 1779 | 1114 |
| 251 | Regional Planning | 14 | 464 | 758 | 608 |
| 252 | Youth | 11 | 457 | 324 | 313 |
| 253 | Child welfare | 17 | 455 | 398 | 350 |
| 254 | Biodiversity conservation | 10 | 454 | 1101 | 1398 |
| 254 | Autism | 6 | 454 | 576 | 365 |
| 256 | Nanoparticles | 5 | 452 | 1758 | 951 |
| 257 | Environmental Microbiology | 8 | 451 | 934 | 917 |
| 258 | Positive Psychology | 5 | 444 | 95 | 73 |
| 259 | Cancer | 6 | 443 | 3526 | 2664 |
| 260 | Consciousness | 17 | 442 | 91 | 146 |
| 261 | Fungi | 10 | 436 | 639 | 643 |
| 262 | Human Geography | 14 | 434 | 504 | 390 |
| 263 | psychotherapy | 16 | 431 | 640 | 737 |
| 264 | Occupational Health | 4 | 430 | 1249 | 368 |
| 265 | urban health | 10 | 429 | 114 | 99 |
| 266 | Counseling Psychology | 12 | 424 | 83 | 82 |
| 267 | Nanotechnology | 10 | 419 | 3575 | 3334 |
| 267 | International Relations | 24 | 419 | 362 | 312 |
| 269 | Politics | 16 | 415 | 210 | 155 |
| 269 | Medical innovations | 1 | 415 | 2248 | 1090 |
| 269 | government | 16 | 415 | 252 | 210 |
| 269 | drug development | 1 | 415 | 2340 | 1024 |
| 273 | Diagnostic Imaging | 8 | 409 | 1612 | 1100 |
| 274 | Ethnic relations | 18 | 408 | 132 | 90 |
| 275 | Geochemistry | 9 | 407 | 1480 | 1285 |
| 276 | Membranes | 10 | 404 | 1208 | 1206 |
| 277 | Biofeedback | 10 | 403 | 14 | 19 |
| 278 | Neurolinguistics | 5 | 398 | 363 | 218 |
| 279 | Oncology | 2 | 397 | 3460 | 2093 |
| 279 | Biocompatible Materials | 6 | 397 | 3351 | 2832 |
| 281 | Hospitality industry | 10 | 396 | 132 | 91 |
| 282 | healthcare disparities | 14 | 394 | 173 | 137 |
| 283 | Economic Development | 6 | 390 | 1415 | 1005 |
| 284 | Ocean Engineering | 10 | 389 | 1008 | 822 |
| 285 | California | 15 | 375 | 174 | 168 |
| 286 | Cognitive Science | 13 | 373 | 710 | 858 |
| 287 | Solid State Physics | 7 | 370 | 3162 | 2162 |
| 288 | Condensed Matter | 5 | 368 | 3186 | 1996 |
| 288 | Export Marketing | 9 | 368 | 51 | 106 |
| 290 | recreation | 40 | 367 | 100 | 190 |
| 291 | Catalysis | 9 | 362 | 2644 | 2514 |
| 292 | Happiness | 4 | 360 | 339 | 135 |
| 293 | Epidemiology | 21 | 358 | 1872 | 2548 |
| 294 | Perception | 9 | 356 | 1496 | 1272 |
| 295 | Endocrinology | 6 | 354 | 3053 | 2599 |
| 296 | Structural dynamics | 15 | 353 | 446 | 589 |
| 296 | Comparative Psychology | 3 | 353 | 131 | 75 |
| 296 | Combinatorial analysis | 26 | 353 | 338 | 255 |
| 299 | Plant Genetics | 5 | 352 | 622 | 542 |
| 300 | Health Information Management | 2 | 349 | 444 | 299 |
| 301 | Marine Meteorology | 2 | 348 | 509 | 243 |
| 302 | Meteorites | 6 | 345 | 842 | 819 |
| 303 | Insects | 9 | 343 | 1007 | 664 |
| 304 | Women's health | 10 | 338 | 762 | 591 |
| 305 | thinking | 3 | 334 | 276 | 70 |
| 306 | Water pollution | 6 | 331 | 2355 | 2016 |
| 307 | Developing countries | 13 | 329 | 1219 | 1251 |
| 308 | Environmental Toxicology | 3 | 327 | 3012 | 1803 |
| 308 | Organizational Behavior | 4 | 327 | 549 | 387 |
| 308 | Educational Anthropology | 7 | 327 | 45 | 22 |
| 311 | cultural pluralism | 7 | 326 | 202 | 72 |
| 312 | Operations Research | 14 | 325 | 1199 | 1201 |
| 313 | Proteome | 8 | 321 | 865 | 909 |
| 314 | Knowledge | 5 | 319 | 364 | 130 |
| 315 | Quality Assurance | 5 | 317 | 258 | 74 |
| 316 | Ethnology | 38 | 314 | 267 | 510 |
| 317 | Medical Ethics | 21 | 308 | 345 | 396 |
| 317 | Marine Pollution | 4 | 308 | 1219 | 851 |
| 319 | Chemical Oceanography | 3 | 307 | 350 | 249 |
| 320 | Exercise | 19 | 304 | 481 | 622 |
| 321 | Nanostructured Materials | 8 | 298 | 2436 | 2231 |
| 322 | Suicide | 13 | 297 | 215 | 278 |
| 322 | gene mapping | 4 | 297 | 2316 | 1785 |
| 324 | Attention | 8 | 296 | 1483 | 1303 |
| 325 | sadness | 12 | 294 | 37 | 31 |
| 325 | death | 12 | 294 | 60 | 47 |
| 325 | antisocial personality disorder | 12 | 294 | 37 | 31 |
| 328 | Virology | 11 | 293 | 2214 | 3259 |
| 329 | alcoholism | 12 | 292 | 874 | 1031 |
| 330 | Respiration | 5 | 290 | 1535 | 1165 |
| 331 | Neurophysiology | 11 | 286 | 2035 | 2468 |
| 332 | child abuse | 4 | 285 | 846 | 569 |
| 333 | Bioinformatics | 17 | 284 | 970 | 1614 |
| 334 | Archaeology | 16 | 280 | 636 | 670 |
| 335 | Computational Biology | 18 | 279 | 1344 | 2098 |
| 336 | Political Sociology | 6 | 278 | 306 | 203 |
| 336 | Neurotransmitters | 14 | 278 | 235 | 238 |
| 338 | Paleopathology | 7 | 277 | 191 | 82 |
| 339 | Geriatric Psychiatry | 6 | 276 | 932 | 741 |
| 339 | China | 17 | 276 | 1324 | 1548 |
| 341 | Social Change | 4 | 275 | 945 | 751 |
| 341 | human development | 12 | 275 | 343 | 508 |
| 341 | Memory | 9 | 275 | 1461 | 1476 |
| 344 | Ergonomics | 25 | 270 | 327 | 477 |
| 344 | Photonics | 11 | 270 | 1065 | 1356 |
| 346 | Vocational Education | 13 | 269 | 218 | 195 |
| 346 | economic policy | 18 | 269 | 1095 | 1033 |
| 346 | sex crimes | 7 | 269 | 408 | 281 |
| 349 | Learning disabilities | 20 | 262 | 262 | 412 |
| 349 | Infertility | 9 | 262 | 839 | 925 |
| 349 | fertility | 9 | 262 | 886 | 979 |
| 352 | movement | 7 | 257 | 160 | 159 |
| 353 | Nonlinear Dynamics | 6 | 256 | 1882 | 1422 |
| 354 | Psychopharmacology | 5 | 255 | 1632 | 1435 |
| 354 | Nationalism | 4 | 255 | 281 | 58 |
| 354 | Group Identity | 4 | 255 | 33 | 6 |
| 354 | at-risk youth | 3 | 255 | 102 | 90 |
| 358 | Paleontology | 9 | 254 | 930 | 735 |
| 358 | Plant Ecology | 9 | 254 | 1206 | 1472 |
| 358 | Urban Education | 6 | 254 | 67 | 35 |
| 361 | Cell differentiation | 3 | 253 | 2223 | 1856 |
| 362 | planning | 7 | 252 | 432 | 240 |
| 363 | Process Control | 4 | 251 | 836 | 752 |
| 364 | Human Rights | 5 | 250 | 469 | 185 |
| 365 | Communism | 9 | 249 | 34 | 16 |
| 366 | occupational diseases | 3 | 247 | 1201 | 640 |
| 366 | environmental exposure | 3 | 247 | 2457 | 1407 |
| 368 | consumer behavior | 4 | 245 | 472 | 341 |
| 369 | Bioethics | 16 | 241 | 325 | 376 |
| 369 | Aquatic ecology | 9 | 241 | 615 | 587 |
| 371 | Communication in medicine | 9 | 239 | 300 | 301 |
| 372 | Visual Perception | 8 | 236 | 1425 | 1430 |
| 373 | peace | 20 | 235 | 127 | 286 |
| 374 | Substance Abuse | 13 | 234 | 797 | 992 |
| 375 | Lung Transplantation | 12 | 232 | 428 | 439 |
| 375 | Heart transplantation | 12 | 232 | 428 | 439 |
| 375 | proteins | 13 | 232 | 1278 | 1675 |
| 378 | DNA polymerases | 1 | 230 | 1011 | 763 |
| 379 | Image Processing | 7 | 229 | 1544 | 1417 |
| 380 | Oral communication | 7 | 228 | 235 | 189 |
| 381 | Obesity | 7 | 226 | 1757 | 1971 |
| 382 | Diabetes mellitus | 2 | 225 | 3290 | 2262 |
| 382 | Diabetes | 2 | 225 | 3399 | 2327 |
| 384 | Photochemistry | 3 | 224 | 2203 | 1244 |
| 385 | Environmental Psychology | 1 | 221 | 758 | 315 |
| 385 | Psychometrics | 7 | 221 | 305 | 325 |
| 387 | disease vectors | 4 | 220 | 1015 | 672 |
| 388 | Behavioral Finance | 4 | 219 | 22 | 3 |
| 389 | Obstetrics | 5 | 217 | 2674 | 1988 |
| 390 | race relations | 20 | 216 | 147 | 278 |
| 391 | Health Policy | 15 | 210 | 1188 | 1879 |
| 391 | Genes | 10 | 210 | 650 | 812 |
| 393 | Histology | 7 | 209 | 1566 | 1672 |
| 393 | Language teaching | 4 | 209 | 39 | 25 |
| 393 | second language | 4 | 209 | 39 | 25 |
| 393 | Southeast Asia | 4 | 209 | 386 | 88 |
| 397 | Hydrogeology | 5 | 208 | 574 | 383 |
| 398 | Photobiology | 2 | 207 | 2082 | 944 |
| 399 | Social Entrepreneurship | 1 | 206 | 330 | 31 |
| 400 | drug addiction | 10 | 205 | 746 | 1047 |
| 401 | Relationships | 1 | 204 | 315 | 112 |
| 402 | Biochemical Engineering | 2 | 203 | 4549 | 3751 |
| 403 | Restoration Ecology | 8 | 201 | 233 | 301 |
| 403 | Metabolic diseases | 1 | 201 | 4519 | 2642 |
| 405 | Statistics | 18 | 199 | 1347 | 1730 |
| 405 | School Psychology | 8 | 199 | 250 | 308 |
| 405 | animals | 9 | 199 | 814 | 692 |
| 405 | Fuzzy systems | 4 | 199 | 1716 | 723 |
| 409 | social science | 3 | 195 | 173 | 131 |
| 410 | Multilingualism | 2 | 193 | 403 | 121 |
| 410 | biological invasions | 5 | 193 | 534 | 494 |
| 412 | Climate change | 6 | 191 | 881 | 1612 |
| 412 | Eutrophication | 6 | 191 | 852 | 1596 |
| 412 | Primates | 6 | 191 | 620 | 489 |
| 415 | Telecommunication | 10 | 190 | 1403 | 1208 |
| 416 | Bioengineering | 3 | 189 | 5371 | 4441 |
| 417 | Early Childhood Education | 15 | 188 | 203 | 266 |
| 418 | Humanities | 12 | 187 | 840 | 571 |
| 418 | Dance | 24 | 187 | 56 | 44 |
| 418 | place marketing | 2 | 187 | 130 | 85 |
| 421 | humanistic psychology | 9 | 186 | 11 | 20 |
| 421 | educational innovations | 13 | 186 | 167 | 289 |
| 423 | Computer Vision | 3 | 185 | 1375 | 1095 |
| 423 | Microelectronics | 2 | 185 | 2516 | 1643 |
| 425 | Plant diseases | 6 | 184 | 1702 | 1447 |
| 426 | Host-parasite interactions | 7 | 183 | 1021 | 1734 |
| 426 | Hearing | 13 | 183 | 329 | 484 |
| 426 | Sleep | 4 | 183 | 1919 | 1436 |
| 429 | soil microbiology | 5 | 182 | 1336 | 1729 |
| 430 | Reading | 6 | 179 | 421 | 362 |
| 431 | Mathematical Physics | 42 | 178 | 902 | 1846 |
| 432 | Popular culture | 19 | 177 | 92 | 92 |
| 433 | reasoning | 4 | 176 | 328 | 206 |
| 434 | Plants | 10 | 175 | 1374 | 1964 |
| 435 | locomotion | 4 | 174 | 717 | 559 |
| 435 | posture | 4 | 174 | 717 | 559 |
| 435 | mammals | 11 | 174 | 563 | 750 |
| 435 | gait | 4 | 174 | 717 | 559 |
| 435 | walking | 4 | 174 | 717 | 559 |
| 440 | Transportation | 6 | 172 | 1334 | 1264 |
| 441 | Urban Policy | 4 | 170 | 738 | 624 |
| 441 | Sleep Disorders | 3 | 170 | 2191 | 1483 |
| 441 | Cognitive neuroscience | 5 | 170 | 876 | 1025 |
| 441 | Wetland ecology | 11 | 170 | 155 | 306 |
| 445 | psychopathology | 4 | 169 | 336 | 326 |
| 446 | wildlife diseases | 6 | 166 | 75 | 39 |
| 447 | Australia | 7 | 165 | 1524 | 1284 |
| 448 | Geopolitics | 4 | 164 | 231 | 95 |
| 448 | industrial relations | 5 | 164 | 716 | 490 |
| 448 | family violence | 1 | 164 | 866 | 342 |
| 451 | Medical Microbiology | 4 | 163 | 2671 | 2779 |
| 452 | Geometry | 22 | 162 | 436 | 514 |
| 453 | Primary health care | 5 | 161 | 1776 | 1431 |
| 453 | Malaria | 4 | 161 | 769 | 631 |
| 455 | men | 3 | 159 | 326 | 154 |
| 456 | Citizenship | 3 | 158 | 124 | 78 |
| 457 | Socialization | 8 | 157 | 281 | 475 |
| 457 | role | 8 | 157 | 224 | 405 |
| 459 | Bilingual Education | 4 | 156 | 59 | 29 |
| 459 | Physical Chemistry | 6 | 156 | 2012 | 2059 |
| 461 | Political Participation | 3 | 155 | 352 | 210 |
| 461 | urban forestry | 2 | 155 | 404 | 154 |
| 461 | software | 3 | 155 | 1182 | 882 |
| 464 | Agricultural Ecology | 3 | 154 | 1376 | 1302 |
| 465 | masculinity | 2 | 152 | 120 | 65 |
| 466 | Cognitive Therapy | 6 | 151 | 467 | 516 |
| 466 | International Finance | 4 | 151 | 1577 | 1267 |
| 466 | Therapeutics | 4 | 151 | 2074 | 2112 |
| 469 | Machine Learning | 1 | 150 | 827 | 292 |
| 470 | Sustainable Development | 5 | 149 | 1895 | 1942 |
| 470 | Marine Ecology | 10 | 149 | 438 | 568 |
| 472 | Leadership | 6 | 148 | 313 | 525 |
| 472 | nucleic acids | 6 | 148 | 1655 | 2236 |
| 474 | Forecasting | 6 | 147 | 358 | 401 |
| 475 | Carbon | 1 | 146 | 2396 | 1584 |
| 476 | Neonatology | 2 | 143 | 1046 | 529 |
| 476 | actuators | 4 | 143 | 2271 | 2239 |
| 476 | Social interaction | 4 | 143 | 287 | 247 |
| 476 | hygiene | 2 | 143 | 826 | 435 |
| 476 | transducers | 4 | 143 | 2271 | 2239 |
| 481 | Molecular Microbiology | 3 | 141 | 1091 | 1253 |
| 481 | disabilities | 7 | 141 | 510 | 613 |
| 483 | Breeding | 5 | 140 | 1109 | 1161 |
| 484 | Metabolism | 3 | 138 | 3605 | 3462 |
| 484 | Social problems | 8 | 138 | 356 | 555 |
| 486 | Magnetic Resonance Spectroscopy | 7 | 137 | 1003 | 1011 |
| 487 | heredity | 5 | 133 | 602 | 578 |
| 487 | nanoscience | 3 | 133 | 3426 | 3118 |
| 489 | Environmental monitoring | 4 | 132 | 4217 | 4388 |
| 489 | enzymes | 5 | 132 | 1458 | 1690 |
| 491 | nuclear magnetic resonance | 6 | 131 | 993 | 951 |
| 492 | Urban Economics | 1 | 130 | 702 | 402 |
| 493 | weather forecasting | 7 | 129 | 130 | 219 |
| 493 | freshwater biology | 3 | 129 | 1121 | 858 |
| 495 | Seismology | 4 | 128 | 565 | 451 |
| 495 | Language Acquisition | 4 | 128 | 373 | 333 |
| 495 | drug abuse | 6 | 128 | 508 | 565 |
| 495 | Zoonoses | 1 | 128 | 734 | 305 |
| 499 | Religion and Psychology | 6 | 127 | 314 | 257 |
| 500 | health services accessibility | 5 | 126 | 869 | 834 |
| 501 | Human genetics | 3 | 125 | 2839 | 4093 |
| 501 | women | 15 | 125 | 258 | 405 |
| 503 | Employee selection | 6 | 124 | 62 | 104 |
| 504 | Mobile Computing | 4 | 122 | 1136 | 722 |
| 504 | Bereavement | 1 | 122 | 440 | 98 |
| 506 | War and Society | 12 | 121 | 78 | 262 |
| 506 | warfare | 12 | 121 | 114 | 329 |
| 506 | international cooperation | 12 | 121 | 218 | 590 |
| 509 | mycoses | 1 | 120 | 1811 | 1330 |
| 510 | Dynamics | 6 | 118 | 1506 | 1229 |
| 510 | Continuing Education | 18 | 118 | 100 | 201 |
| 510 | free radicals | 2 | 118 | 2157 | 1969 |
| 510 | Quantum theory | 6 | 118 | 736 | 774 |
| 514 | viruses | 4 | 117 | 1682 | 2151 |
| 515 | Language Disorders | 8 | 116 | 572 | 739 |
| 515 | Pharmaceutical Technology | 2 | 116 | 2185 | 1618 |
| 515 | Plant breeding | 4 | 116 | 872 | 805 |
| 515 | libraries | 6 | 116 | 578 | 382 |
| 515 | catalytic activity | 2 | 116 | 864 | 714 |
| 515 | eugenics | 4 | 116 | 613 | 568 |
| 521 | Chemical Engineering | 1 | 114 | 7062 | 4645 |
| 521 | Adult Education | 14 | 114 | 180 | 309 |
| 521 | Patient education | 3 | 114 | 776 | 795 |
| 521 | Hematopoietic stem cell transplantation | 1 | 114 | 1015 | 642 |
| 521 | Qualitative Research | 2 | 114 | 712 | 387 |
| 521 | Stem cells | 1 | 114 | 3027 | 2046 |
| 527 | International security | 2 | 112 | 313 | 284 |
| 527 | Wetland conservation | 8 | 112 | 148 | 283 |
| 527 | conflict management | 2 | 112 | 390 | 269 |
| 527 | Wetlands | 8 | 112 | 151 | 283 |
| 531 | Human-Computer Interaction | 6 | 111 | 1194 | 1417 |
| 531 | Animal welfare | 2 | 111 | 518 | 321 |
| 531 | primary prevention | 2 | 111 | 673 | 438 |
| 531 | body temperature | 4 | 111 | 439 | 390 |
| 535 | Discrete geometry | 11 | 110 | 90 | 155 |
| 535 | Urban Anthropology | 6 | 110 | 78 | 92 |
| 535 | African Americans | 6 | 110 | 118 | 83 |
| 538 | Health Services Research | 3 | 109 | 2302 | 1793 |
| 538 | Language Development | 2 | 109 | 307 | 213 |
| 538 | plankton | 5 | 109 | 155 | 223 |
| 541 | Numerical Analysis | 6 | 108 | 1995 | 1799 |
| 541 | Immunochemistry | 1 | 108 | 2188 | 1082 |
| 541 | Recombinant DNA | 2 | 108 | 2387 | 1750 |
| 541 | mathematical analysis | 11 | 108 | 1628 | 1670 |
| 545 | Immunology | 12 | 106 | 2724 | 4618 |
| 545 | health planning | 5 | 106 | 2075 | 2061 |
| 547 | Comparative Physiology | 6 | 105 | 694 | 895 |
| 547 | Outdoor Education | 1 | 105 | 180 | 43 |
| 547 | Adventure education | 1 | 105 | 129 | 29 |
| 547 | exobiology | 4 | 105 | 318 | 467 |
| 547 | health services | 7 | 105 | 820 | 1110 |
| 552 | Maternal health services | 4 | 104 | 412 | 476 |
| 552 | Physical fitness | 4 | 104 | 1101 | 1133 |
| 552 | national security | 3 | 104 | 441 | 180 |
| 552 | Self | 4 | 104 | 137 | 158 |
| 552 | crime | 21 | 104 | 213 | 519 |
| 557 | Analytical Chemistry | 5 | 103 | 4419 | 4770 |
| 558 | Microbial Genetics | 2 | 101 | 542 | 416 |
| 558 | Solar Energy | 2 | 101 | 2418 | 2062 |
| 558 | Coastal zone management | 4 | 101 | 663 | 729 |
| 558 | Sovereignty | 3 | 101 | 122 | 90 |
| 558 | solar power | 2 | 101 | 1171 | 1123 |
| 558 | sustainability | 1 | 101 | 1746 | 1128 |
| 558 | phytopathogenic bacteria | 2 | 101 | 377 | 386 |
| 558 | solar cells | 2 | 101 | 1304 | 1234 |
| 566 | protein | 6 | 100 | 1123 | 1454 |
| 567 | Entropy | 5 | 99 | 908 | 783 |
| 568 | Signal Processing | 8 | 98 | 1399 | 1772 |
| 569 | Operator theory | 2 | 97 | 600 | 147 |
| 569 | Socioeconomic Factors | 8 | 97 | 442 | 879 |
| 569 | Marine resources | 4 | 97 | 678 | 766 |
| 572 | Engineering | 16 | 96 | 2349 | 3974 |
| 572 | Genetic engineering | 1 | 96 | 4188 | 2934 |
| 572 | Forest Ecology | 3 | 96 | 1252 | 1309 |
| 572 | Molecular cloning | 1 | 96 | 2929 | 1772 |
| 572 | Genetic recombination | 1 | 96 | 2880 | 1756 |
| 572 | Forest Management | 3 | 96 | 1216 | 1246 |
| 578 | Agricultural Chemistry | 2 | 95 | 3305 | 2681 |
| 578 | Research Design | 5 | 95 | 1195 | 1548 |
| 578 | African American | 4 | 95 | 110 | 77 |
| 581 | Ethics | 12 | 94 | 440 | 797 |
| 581 | Financial Engineering | 2 | 94 | 321 | 175 |
| 581 | Urban Geography | 5 | 94 | 163 | 202 |
| 581 | Leisure | 8 | 94 | 189 | 334 |
| 581 | Agriculture | 8 | 94 | 1710 | 2525 |
| 586 | Origin of life | 5 | 93 | 79 | 138 |
| 586 | vibration | 9 | 93 | 803 | 1209 |
| 586 | Organelle biogenesis | 5 | 93 | 151 | 235 |
| 589 | drug control | 2 | 92 | 578 | 465 |
| 590 | Neuropsychiatry | 2 | 91 | 1395 | 1207 |
| 590 | Exercise therapy | 6 | 91 | 222 | 294 |
| 590 | Optical materials | 5 | 91 | 2396 | 3065 |
| 590 | Language Arts | 3 | 91 | 114 | 45 |
| 594 | History | 15 | 90 | 558 | 330 |
| 594 | nursing education | 3 | 90 | 153 | 77 |
| 596 | Computational Chemistry | 1 | 87 | 1319 | 832 |
| 596 | Criminal psychology | 10 | 87 | 440 | 770 |
| 596 | Telecommunications | 5 | 87 | 637 | 597 |
| 596 | income distribution | 2 | 87 | 216 | 220 |
| 596 | Molecular structure | 5 | 87 | 2415 | 2751 |
| 601 | Ecological Genetics | 5 | 86 | 543 | 597 |
| 601 | Number Theory | 6 | 86 | 662 | 427 |
| 601 | Experience | 1 | 86 | 108 | 17 |
| 604 | Personality Assessment | 6 | 85 | 415 | 756 |
| 604 | Scandinavia | 1 | 85 | 1336 | 626 |
| 606 | Algebra | 10 | 84 | 1021 | 928 |
| 607 | Virulence | 4 | 83 | 1303 | 2218 |
| 608 | Social History | 8 | 82 | 306 | 298 |
| 608 | Environmental Chemistry | 5 | 82 | 2033 | 3009 |
| 608 | pollutants | 5 | 82 | 1796 | 2652 |
| 608 | Environmental pollutants | 5 | 82 | 2191 | 3052 |
| 612 | Industrial Engineering | 6 | 81 | 1575 | 2130 |
| 612 | Earthquakes | 3 | 81 | 459 | 359 |
| 612 | Immunity | 3 | 81 | 2514 | 3335 |
| 615 | Medical Physics | 4 | 79 | 1850 | 1919 |
| 615 | Capital market | 2 | 79 | 554 | 497 |
| 615 | Mental Health Counseling | 1 | 79 | 239 | 95 |
| 618 | Traffic Engineering | 1 | 78 | 805 | 552 |
| 618 | Neurobiology | 2 | 78 | 2632 | 2761 |
| 618 | civilization | 20 | 78 | 477 | 334 |
| 618 | Labor Movement | 11 | 78 | 45 | 62 |
| 618 | lasers | 3 | 78 | 2345 | 1715 |
| 623 | psychophysics | 1 | 77 | 665 | 298 |
| 623 | Aggression | 4 | 77 | 421 | 646 |
| 625 | speech therapy | 8 | 76 | 258 | 423 |
| 625 | Biological Systems | 1 | 76 | 1696 | 886 |
| 625 | language therapy | 5 | 76 | 111 | 154 |
| 625 | corrections | 3 | 76 | 194 | 132 |
| 625 | punishment | 3 | 76 | 98 | 90 |
| 625 | children | 8 | 76 | 313 | 670 |
| 631 | infection | 3 | 75 | 2212 | 2477 |
| 632 | Cybernetics | 1 | 73 | 2570 | 1553 |
| 632 | Corporate governance | 4 | 73 | 513 | 743 |
| 632 | Dementia | 1 | 73 | 2712 | 1406 |
| 632 | Alzheimer's disease | 1 | 73 | 2779 | 1547 |
| 636 | Surgery | 2 | 72 | 3141 | 3154 |
| 636 | Photography | 23 | 72 | 706 | 729 |
| 636 | Liposomes | 3 | 72 | 641 | 728 |
| 636 | Lipid bilayers | 3 | 72 | 519 | 591 |
| 640 | Investment analysis | 5 | 71 | 632 | 907 |
| 640 | Japan | 7 | 71 | 1696 | 2114 |
| 640 | administrative agencies | 3 | 71 | 298 | 276 |
| 643 | Soil Science | 3 | 70 | 2181 | 2352 |
| 643 | Hydraulic Engineering | 3 | 70 | 1132 | 1117 |
| 645 | Discourse Analysis | 6 | 69 | 248 | 380 |
| 645 | Digital electronics | 2 | 69 | 481 | 208 |
| 645 | rural health | 2 | 69 | 287 | 251 |
| 645 | Technological Innovations | 3 | 69 | 1206 | 1278 |
| 649 | Morphology | 4 | 68 | 856 | 886 |
| 650 | Structural design | 3 | 67 | 897 | 895 |
| 650 | Computational Mathematics | 1 | 67 | 235 | 139 |
| 650 | Analytical Biochemistry | 9 | 67 | 1162 | 2421 |
| 650 | Smart Materials | 3 | 67 | 1037 | 1041 |
| 650 | health and race | 5 | 67 | 185 | 323 |
| 650 | Chromosome mapping | 3 | 67 | 2447 | 3149 |
| 650 | Broadcasting | 5 | 67 | 122 | 181 |
| 650 | Continental shelf | 5 | 67 | 337 | 653 |
| 658 | Histochemistry | 1 | 66 | 2259 | 1423 |
| 659 | Criminology | 22 | 65 | 328 | 936 |
| 659 | Functional Analysis | 8 | 65 | 904 | 1196 |
| 661 | Asthma | 3 | 64 | 928 | 972 |
| 661 | Renewable Energy Sources | 1 | 64 | 4540 | 4290 |
| 661 | energy development | 1 | 64 | 1920 | 1342 |
| 661 | Economic planning | 4 | 64 | 430 | 655 |
| 665 | Climatology | 5 | 63 | 1699 | 2458 |
| 665 | Arthropods | 1 | 63 | 601 | 219 |
| 667 | Viticulture | 2 | 62 | 197 | 168 |
| 667 | Reproduction | 3 | 62 | 2973 | 3223 |
| 667 | Wine | 2 | 62 | 68 | 44 |
| 667 | motor skills | 2 | 62 | 275 | 259 |
| 671 | Organizational Sociology | 1 | 61 | 669 | 415 |
| 671 | Language and Education | 3 | 61 | 139 | 116 |
| 671 | forestry | 1 | 61 | 528 | 339 |
| 674 | Organizational change | 5 | 60 | 569 | 872 |
| 674 | Composite Materials | 1 | 60 | 4315 | 3660 |
| 676 | community development | 8 | 59 | 323 | 690 |
| 676 | Land use | 1 | 59 | 2175 | 1708 |
| 676 | Urban Transportation | 1 | 59 | 420 | 163 |
| 679 | Evidence-Based Medicine | 4 | 58 | 1348 | 1747 |
| 679 | wetland management | 3 | 58 | 179 | 273 |
| 681 | Game Theory | 4 | 57 | 567 | 608 |
| 682 | Ophthalmology | 3 | 56 | 2221 | 2596 |
| 682 | Developmental Genetics | 1 | 56 | 1091 | 1209 |
| 682 | elder abuse | 1 | 56 | 679 | 504 |
| 682 | Hemophilia | 1 | 56 | 1016 | 656 |
| 682 | consumers | 3 | 56 | 394 | 503 |
| 687 | Medical Technology | 2 | 55 | 2990 | 2889 |
| 687 | Urban Planning | 1 | 55 | 802 | 611 |
| 687 | Optical Communications | 3 | 55 | 720 | 700 |
| 687 | Radiation | 4 | 55 | 2432 | 2791 |
| 687 | Sexual health | 2 | 55 | 1227 | 964 |
| 687 | community organization | 6 | 55 | 45 | 85 |
| 693 | Econometrics | 9 | 54 | 889 | 1498 |
| 693 | Psychoneuroimmunology | 4 | 54 | 699 | 1392 |
| 693 | Sociolinguistics | 6 | 54 | 308 | 492 |
| 693 | Multicultural Education | 4 | 54 | 352 | 387 |
| 693 | Career development | 6 | 54 | 255 | 450 |
| 693 | Neuroimmunology | 4 | 54 | 792 | 1520 |
| 693 | Business communication | 6 | 54 | 102 | 195 |
| 700 | Herpetology | 4 | 53 | 329 | 333 |
| 700 | Marriage | 6 | 53 | 351 | 713 |
| 702 | Mathematics Education | 3 | 52 | 531 | 425 |
| 702 | Plate Tectonics | 2 | 52 | 403 | 380 |
| 702 | economic indicators | 1 | 52 | 266 | 107 |
| 702 | cell physiology | 5 | 52 | 1546 | 2842 |
| 706 | Computer Graphics | 4 | 51 | 1678 | 2096 |
| 706 | Demography | 3 | 51 | 837 | 1094 |
| 706 | Stochastic Processes | 9 | 51 | 497 | 1043 |
| 706 | Geobiology | 4 | 51 | 476 | 790 |
| 706 | Biometrics | 6 | 51 | 950 | 1506 |
| 706 | Auditing | 6 | 51 | 247 | 523 |
| 712 | Neural circuitry | 1 | 50 | 3411 | 2900 |
| 712 | synthesis | 5 | 50 | 960 | 1151 |
| 714 | Juvenile delinquency | 14 | 49 | 105 | 404 |
| 714 | terrorism | 2 | 49 | 413 | 321 |
| 714 | Healing | 2 | 49 | 188 | 168 |
| 714 | Social welfare | 4 | 49 | 554 | 773 |
| 714 | Labor Unions | 6 | 49 | 135 | 195 |
| 714 | Holistic Health | 2 | 49 | 704 | 591 |
| 714 | labor | 6 | 49 | 218 | 392 |
| 714 | Labor history | 5 | 49 | 37 | 24 |
| 722 | Graph Theory | 8 | 48 | 493 | 660 |
| 722 | residential treatment | 1 | 48 | 364 | 208 |
| 724 | Writing | 3 | 47 | 295 | 436 |
| 724 | Eurasia | 3 | 47 | 244 | 287 |
| 724 | North America | 6 | 47 | 715 | 1295 |
| 724 | Jurisprudence | 7 | 47 | 706 | 1227 |
| 728 | Public Health Administration | 2 | 46 | 615 | 455 |
| 728 | Educational Technology | 12 | 46 | 725 | 2042 |
| 728 | Oncogenes | 1 | 46 | 2169 | 2571 |
| 728 | visualization | 8 | 46 | 1159 | 1328 |
| 728 | Antarctica | 4 | 46 | 537 | 702 |
| 728 | Psychiatric Epidemiology | 2 | 46 | 784 | 1155 |
| 728 | Development | 2 | 46 | 1200 | 1467 |
| 728 | RNA | 1 | 46 | 1082 | 1064 |
| 728 | Literacy | 4 | 46 | 262 | 334 |
| 728 | Economic Assistance | 2 | 46 | 1056 | 1330 |
| 728 | world | 2 | 46 | 1097 | 1556 |
| 739 | Neurochemistry | 2 | 45 | 3334 | 3835 |
| 739 | Systems Analysis | 3 | 45 | 1316 | 1551 |
| 739 | Environmental Education | 4 | 45 | 313 | 496 |
| 739 | Wildlife management | 3 | 45 | 732 | 813 |
| 739 | Cosmochemistry | 2 | 45 | 1293 | 1552 |
| 739 | slavery | 3 | 45 | 68 | 68 |
| 739 | DNA | 3 | 45 | 737 | 1013 |
| 746 | Plant Taxonomy | 3 | 44 | 498 | 641 |
| 747 | Disability Studies | 5 | 43 | 216 | 355 |
| 747 | Soil biology | 2 | 43 | 1271 | 1733 |
| 747 | Risk | 1 | 43 | 1230 | 1041 |
| 747 | Securities | 3 | 43 | 335 | 598 |
| 747 | insurance | 1 | 43 | 784 | 492 |
| 747 | Tropical Medicine | 5 | 43 | 1896 | 2878 |
| 753 | Psychosomatic Medicine | 1 | 42 | 1775 | 1676 |
| 753 | Visual Anthropology | 5 | 42 | 35 | 50 |
| 753 | Human trafficking | 2 | 42 | 96 | 39 |
| 753 | Watershed management | 1 | 42 | 572 | 270 |
| 757 | Geotechnical Engineering | 5 | 41 | 417 | 764 |
| 757 | Soil Mechanics | 5 | 41 | 1011 | 1604 |
| 757 | Rock Mechanics | 5 | 41 | 787 | 1340 |
| 757 | Biosensors | 1 | 41 | 2391 | 2740 |
| 757 | Adolescent Medicine | 2 | 41 | 1003 | 1536 |
| 757 | police psychology | 4 | 41 | 72 | 110 |
| 757 | Amphibians | 3 | 41 | 348 | 284 |
| 757 | Community networks | 3 | 41 | 11 | 31 |
| 757 | Approximation Theory | 2 | 41 | 609 | 457 |
| 766 | Law | 7 | 40 | 1188 | 1089 |
| 766 | Database Management | 2 | 40 | 1121 | 1198 |
| 766 | Dietetics | 6 | 40 | 616 | 1145 |
| 766 | Physical organic chemistry | 4 | 40 | 1419 | 2053 |
| 766 | Religion | 11 | 40 | 564 | 690 |
| 766 | Nonlinear Optics | 1 | 40 | 611 | 311 |
| 766 | Feminism | 4 | 40 | 525 | 688 |
| 766 | Reptiles | 2 | 40 | 548 | 366 |
| 774 | Job satisfaction | 1 | 39 | 246 | 333 |
| 774 | international trade | 9 | 39 | 327 | 1013 |
| 774 | System design | 1 | 39 | 621 | 438 |
| 774 | Work | 4 | 39 | 321 | 493 |
| 774 | job stress | 1 | 39 | 246 | 333 |
| 774 | Textile industry | 2 | 39 | 876 | 624 |
| 780 | Information Theory | 3 | 38 | 1434 | 1671 |
| 780 | Pathology | 2 | 38 | 3603 | 4361 |
| 780 | Information Retrieval | 1 | 38 | 1010 | 806 |
| 780 | Microbial Biotechnology | 1 | 38 | 2045 | 1842 |
| 780 | Biomechanics | 1 | 38 | 3021 | 2472 |
| 780 | Intelligence | 3 | 38 | 256 | 481 |
| 780 | Public opinion | 2 | 38 | 609 | 763 |
| 780 | Geodynamics | 3 | 38 | 974 | 1342 |
| 780 | Family Therapy | 5 | 38 | 640 | 1042 |
| 780 | System analysis | 3 | 38 | 2980 | 3496 |
| 780 | child mental health | 4 | 38 | 433 | 710 |
| 780 | minority groups | 5 | 38 | 56 | 108 |
| 792 | Physical Geography | 2 | 37 | 840 | 843 |
| 792 | Herbal medicine | 1 | 37 | 1534 | 1660 |
| 792 | Africa | 2 | 37 | 2460 | 2011 |
| 792 | computer networks | 3 | 37 | 2804 | 3139 |
| 792 | pain | 2 | 37 | 2216 | 2639 |
| 792 | optical devices | 3 | 37 | 588 | 758 |
| 798 | Quantum Optics | 1 | 36 | 1615 | 1284 |
| 798 | Gender identity | 3 | 36 | 328 | 358 |
| 798 | Oligosaccharides | 4 | 36 | 218 | 599 |
| 798 | research and development | 1 | 36 | 755 | 644 |
| 798 | technical education | 2 | 36 | 717 | 720 |
| 798 | Sites | 2 | 36 | 807 | 1209 |
| 798 | Atomic spectroscopy | 1 | 36 | 2079 | 1725 |
| 798 | Detectors | 2 | 36 | 1443 | 1201 |
| 798 | Laser Spectroscopy | 1 | 36 | 1540 | 1214 |
| 798 | adulthood | 4 | 36 | 70 | 188 |
| 808 | Hallucinogens | 3 | 35 | 202 | 400 |
| 808 | sports injuries | 2 | 35 | 867 | 896 |
| 810 | Robotics | 2 | 34 | 2289 | 2445 |
| 810 | Drug design | 4 | 34 | 1862 | 3176 |
| 810 | polar regions | 1 | 34 | 1371 | 1161 |
| 810 | Semantic web | 1 | 34 | 416 | 290 |
| 810 | cell interaction | 2 | 34 | 1813 | 2405 |
| 815 | Pharmacognosy | 2 | 33 | 2638 | 3492 |
| 815 | structural stability | 4 | 33 | 435 | 801 |
| 815 | ethnic groups | 4 | 33 | 300 | 623 |
| 815 | natural products | 2 | 33 | 2510 | 2604 |
| 815 | Southern states | 2 | 33 | 475 | 411 |
| 820 | Measurement | 2 | 32 | 1835 | 2114 |
| 820 | Customer service | 1 | 32 | 164 | 105 |
| 820 | Microscopy | 3 | 32 | 2148 | 2524 |
| 823 | Fashion Design | 1 | 31 | 109 | 79 |
| 823 | Signal Transduction | 1 | 31 | 2656 | 2880 |
| 823 | Paleobiology | 1 | 31 | 739 | 492 |
| 823 | Total Quality Management | 1 | 31 | 1201 | 1055 |
| 823 | Simulation Methods | 4 | 31 | 936 | 1674 |
| 823 | Feminist theory | 1 | 31 | 427 | 260 |
| 823 | intervention | 3 | 31 | 121 | 148 |
| 823 | coastal areas | 1 | 31 | 176 | 130 |
| 823 | coastal archaeology | 1 | 31 | 176 | 130 |
| 823 | islands | 1 | 31 | 176 | 130 |
| 823 | educational accountability | 4 | 31 | 90 | 185 |
| 834 | Experimental Psychology | 1 | 30 | 1030 | 926 |
| 834 | Horticulture | 1 | 30 | 1571 | 1238 |
| 834 | Synchrotron Radiation | 1 | 30 | 833 | 694 |
| 834 | Organic Geochemistry | 1 | 30 | 748 | 936 |
| 834 | Eastern Europe | 3 | 30 | 1159 | 1048 |
| 834 | Societies | 6 | 30 | 111 | 225 |
| 834 | Yeast | 1 | 30 | 931 | 976 |
| 834 | investigative techniques | 3 | 30 | 132 | 436 |
| 842 | Mechanical Engineering | 4 | 29 | 2655 | 3183 |
| 842 | Nuclear Energy | 4 | 29 | 1182 | 1492 |
| 842 | Paleoclimatology | 2 | 29 | 1453 | 1899 |
| 842 | Paleoecology | 2 | 29 | 1412 | 1812 |
| 842 | Control Theory | 2 | 29 | 2290 | 2255 |
| 842 | Inclusive Education | 3 | 29 | 161 | 346 |
| 842 | Social perception | 1 | 29 | 258 | 288 |
| 842 | poverty | 3 | 29 | 455 | 937 |
| 842 | Paleogeography | 2 | 29 | 1248 | 1673 |
| 842 | Gene expression regulation | 1 | 29 | 2140 | 2174 |
| 842 | Genetic regulation | 1 | 29 | 2399 | 2587 |
| 842 | Matroids | 2 | 29 | 322 | 355 |
| 842 | Central Asia | 2 | 29 | 338 | 381 |
| 842 | working class | 6 | 29 | 122 | 391 |
| 842 | child behavior | 4 | 29 | 386 | 841 |
| 842 | Soviet Union | 2 | 29 | 1115 | 818 |
| 858 | Architecture | 1 | 28 | 1358 | 689 |
| 858 | Polymers | 1 | 28 | 6973 | 6443 |
| 858 | Soil dynamics | 2 | 28 | 641 | 888 |
| 858 | Ecosystem management | 2 | 28 | 1032 | 1409 |
| 858 | construction | 1 | 28 | 423 | 438 |
| 858 | polymerization | 1 | 28 | 5972 | 5426 |
| 864 | Molecular Pharmacology | 1 | 27 | 1591 | 1920 |
| 864 | peptides | 3 | 27 | 1148 | 1656 |
| 866 | Angst | 1 | 26 | 58 | 94 |
| 866 | Spirituality | 1 | 26 | 188 | 83 |
| 866 | Anxiety | 1 | 26 | 1110 | 1423 |
| 866 | fear | 1 | 26 | 24 | 50 |
| 866 | ports | 1 | 26 | 421 | 454 |
| 866 | Middle East | 10 | 26 | 505 | 1349 |
| 866 | biomedicine | 2 | 26 | 1464 | 2079 |
| 873 | Civil Engineering | 6 | 25 | 1420 | 2271 |
| 873 | Bilingualism | 3 | 25 | 208 | 453 |
| 873 | Communication Disorders | 1 | 25 | 715 | 588 |
| 873 | Transplantation | 2 | 25 | 1862 | 2501 |
| 873 | internet | 4 | 25 | 1210 | 2077 |
| 873 | Muscle contraction | 3 | 25 | 356 | 368 |
| 879 | Palliative Care | 3 | 24 | 1194 | 1852 |
| 879 | Nutrition physiology | 1 | 24 | 1656 | 1783 |
| 879 | foreign policy | 5 | 24 | 198 | 267 |
| 879 | Public Choice | 3 | 24 | 387 | 678 |
| 879 | Group decision making | 3 | 24 | 519 | 905 |
| 879 | Food | 1 | 24 | 5572 | 5848 |
| 879 | Migration | 3 | 24 | 178 | 303 |
| 879 | Arab-Israeli Conflict | 5 | 24 | 40 | 95 |
| 879 | immigrants | 2 | 24 | 54 | 48 |
| 879 | Library Science | 7 | 24 | 900 | 1512 |
| 879 | Futures | 2 | 24 | 468 | 618 |
| 879 | Diplomatic relations | 5 | 24 | 631 | 705 |
| 879 | Nonprofit organizations | 2 | 24 | 494 | 718 |
| 879 | crime victims | 1 | 24 | 356 | 320 |
| 879 | Population | 1 | 24 | 2266 | 2026 |
| 879 | Sales Promotion | 2 | 24 | 147 | 234 |
| 895 | Nuclear Engineering | 1 | 23 | 2367 | 1770 |
| 895 | Mechatronics | 1 | 23 | 1462 | 1325 |
| 895 | Power Electronics | 1 | 23 | 1223 | 1094 |
| 895 | Microeconomics | 2 | 23 | 491 | 594 |
| 895 | Flexible manufacturing systems | 1 | 23 | 848 | 989 |
| 895 | Reproductive health | 2 | 23 | 1260 | 1827 |
| 895 | Community Colleges | 4 | 23 | 160 | 270 |
| 895 | zoos | 2 | 23 | 134 | 159 |
| 895 | Integration | 1 | 23 | 369 | 387 |
| 895 | weight loss | 2 | 23 | 261 | 420 |
| 895 | World Wide Web | 4 | 23 | 355 | 668 |
| 906 | Tribology | 2 | 22 | 1681 | 2125 |
| 906 | Children's Literature | 1 | 22 | 216 | 64 |
| 906 | Systems Biology | 3 | 22 | 2115 | 3639 |
| 909 | Computer Science | 2 | 21 | 3275 | 3531 |
| 909 | Information Systems | 3 | 21 | 1769 | 3054 |
| 909 | Macroeconomics | 1 | 21 | 748 | 680 |
| 909 | Environmental Management | 2 | 21 | 4065 | 5969 |
| 909 | Antioxidants | 1 | 21 | 1567 | 2084 |
| 909 | Paleoceanography | 1 | 21 | 386 | 556 |
| 909 | Aquatic ecosystems | 1 | 21 | 432 | 368 |
| 909 | Wales | 1 | 21 | 313 | 199 |
| 909 | Pacific Islands | 1 | 21 | 808 | 659 |
| 909 | curriculum evaluation | 4 | 21 | 295 | 710 |
| 909 | mental processes | 2 | 21 | 526 | 694 |
| 909 | vitamin C | 1 | 21 | 938 | 1250 |
| 909 | vitamin E | 1 | 21 | 938 | 1250 |
| 922 | Philosophy of Mind | 1 | 20 | 511 | 443 |
| 922 | Clinical Immunology | 2 | 20 | 2042 | 2868 |
| 922 | Sedimentology | 2 | 20 | 911 | 1402 |
| 922 | Immunopathology | 2 | 20 | 2122 | 3063 |
| 922 | Advertising | 2 | 20 | 479 | 841 |
| 922 | Heritage Tourism | 1 | 20 | 304 | 323 |
| 922 | cultural tourism | 1 | 20 | 295 | 323 |
| 922 | Communication in marketing | 1 | 20 | 376 | 453 |
| 922 | Elderly | 47 | 20 | 266 | 1789 |
| 922 | organizational effectiveness | 2 | 20 | 635 | 902 |
| 922 | clay | 1 | 20 | 1530 | 1974 |
| 922 | clay minerals | 1 | 20 | 590 | 743 |
| 922 | Great Lakes | 1 | 20 | 494 | 582 |
| 922 | corporate culture | 2 | 20 | 275 | 510 |
| 922 | Sedimentary rocks | 1 | 20 | 1065 | 1241 |
| 922 | arthritis | 1 | 20 | 2438 | 2985 |
| 922 | venom | 1 | 20 | 1861 | 1816 |
| 922 | Toxins | 1 | 20 | 2011 | 1967 |
| 940 | Classical Philology | 1 | 19 | 546 | 212 |
| 940 | Biochemical Genetics | 2 | 19 | 729 | 814 |
| 940 | Music | 19 | 19 | 261 | 1411 |
| 940 | Discrete Mathematics | 5 | 19 | 255 | 393 |
| 940 | Memory disorders | 1 | 19 | 522 | 573 |
| 940 | Disability Law | 2 | 19 | 242 | 414 |
| 940 | graph | 5 | 19 | 255 | 393 |
| 940 | educational planning | 4 | 19 | 353 | 908 |
| 940 | school psychologists | 1 | 19 | 402 | 532 |
| 940 | Greece | 1 | 19 | 146 | 84 |
| 950 | Anthropological Linguistics | 11 | 18 | 79 | 345 |
| 950 | Cosmology | 4 | 18 | 1474 | 1902 |
| 950 | Medical genetics | 1 | 18 | 4993 | 5859 |
| 950 | Social Issues | 1 | 18 | 510 | 655 |
| 950 | Plant genetic engineering | 1 | 18 | 1777 | 2105 |
| 950 | Genetic testing | 1 | 18 | 891 | 877 |
| 950 | Cognitive Grammar | 2 | 18 | 105 | 157 |
| 950 | Health insurance | 1 | 18 | 1054 | 1151 |
| 950 | Social support | 2 | 18 | 273 | 608 |
| 950 | Social environment | 2 | 18 | 330 | 692 |
| 960 | Software Engineering | 6 | 17 | 826 | 1732 |
| 960 | Topology | 1 | 17 | 606 | 478 |
| 960 | Communication Policy | 1 | 17 | 210 | 289 |
| 960 | Telecommunication Policy | 1 | 17 | 210 | 289 |
| 960 | Islamic Architecture | 2 | 17 | 149 | 226 |
| 960 | Adoption | 1 | 17 | 253 | 238 |
| 960 | local government | 3 | 17 | 371 | 770 |
| 960 | Rhetoric | 1 | 17 | 346 | 157 |
| 960 | Light | 3 | 17 | 1241 | 2437 |
| 960 | concepts | 1 | 17 | 255 | 220 |
| 960 | Water chemistry | 1 | 17 | 907 | 990 |
| 960 | Aquaculture | 1 | 17 | 2585 | 2773 |
| 972 | Surface Chemistry | 2 | 16 | 4893 | 6538 |
| 972 | Computer Architecture | 1 | 16 | 951 | 887 |
| 972 | Bioinorganic chemistry | 7 | 16 | 1088 | 2916 |
| 972 | Race | 3 | 16 | 65 | 166 |
| 972 | Business Intelligence | 1 | 16 | 152 | 65 |
| 972 | Multimedia Systems | 2 | 16 | 2422 | 2898 |
| 972 | Colloids | 2 | 16 | 4783 | 6694 |
| 972 | Educational evaluation | 1 | 16 | 404 | 376 |
| 972 | military intelligence | 1 | 16 | 65 | 22 |
| 981 | Medical Laboratory Science | 1 | 15 | 4184 | 4938 |
| 981 | Hematology | 2 | 15 | 4659 | 5275 |
| 981 | Structural optimization | 1 | 15 | 721 | 887 |
| 981 | Radiography | 1 | 15 | 1394 | 1610 |
| 981 | environmental indicators | 1 | 15 | 2106 | 2865 |
| 981 | bioclimatology | 2 | 15 | 1384 | 2264 |
| 981 | blood transfusion | 2 | 15 | 1294 | 1913 |
| 981 | Crystal growth | 1 | 15 | 1816 | 2102 |
| 981 | Antibodies | 1 | 15 | 1480 | 1779 |
| 981 | Antigens | 1 | 15 | 1890 | 2236 |
| 981 | Human Resources | 1 | 15 | 864 | 1239 |
| 981 | Heterocyclic compounds | 2 | 15 | 1473 | 1789 |
| 993 | Educational Leadership | 2 | 14 | 230 | 367 |
| 993 | Art Therapy | 1 | 14 | 465 | 527 |
| 993 | Genetic epidemiology | 3 | 14 | 365 | 901 |
| 993 | Lipids | 1 | 14 | 2661 | 3409 |
| 993 | Invertebrates | 2 | 14 | 951 | 1631 |
| 993 | Fatherhood | 1 | 14 | 3 | 8 |
| 993 | Sun | 1 | 14 | 717 | 793 |
| 993 | probabilities | 3 | 14 | 1460 | 1853 |