| 1 | Astrophysics | 354 | 25.1K | 332 | 348 |
| 2 | Spectrum analysis | 298 | 16.4K | 309 | 349 |
| 3 | Biology | 115 | 10.5K | 1325 | 1027 |
| 4 | Science | 72 | 9.9K | 1893 | 1114 |
| 5 | Astronomy | 168 | 7.5K | 433 | 471 |
| 6 | Physics | 61 | 6.9K | 2337 | 1439 |
| 7 | mammals | 5 | 6.4K | 745 | 6 |
| 8 | United States | 82 | 5.1K | 764 | 452 |
| 9 | Genetics | 9 | 5.0K | 1786 | 513 |
| 10 | Chemistry | 73 | 4.8K | 2244 | 1637 |
| 11 | Nanotechnology | 43 | 4.7K | 1393 | 804 |
| 12 | Molecular Biology | 78 | 4.1K | 1573 | 1330 |
| 13 | Natural history | 16 | 3.9K | 1297 | 1062 |
| 14 | Cognition | 24 | 3.6K | 577 | 234 |
| 15 | Medicine | 81 | 3.5K | 1795 | 1569 |
| 16 | nanoscience | 15 | 3.2K | 1298 | 514 |
| 17 | Cell Biology | 46 | 3.1K | 922 | 849 |
| 18 | Materials | 48 | 3.0K | 1698 | 1194 |
| 19 | Cancer | 45 | 3.0K | 723 | 579 |
| 20 | Aging | 10 | 2.8K | 1314 | 353 |
| 21 | Social work | 38 | 2.7K | 311 | 86 |
| 22 | Immunity | 13 | 2.6K | 726 | 467 |
| 23 | Psychology | 40 | 2.4K | 1237 | 764 |
| 24 | Biochemistry | 69 | 2.3K | 2002 | 1911 |
| 25 | Psychometrics | 14 | 2.3K | 174 | 64 |
| 26 | Social welfare | 18 | 2.2K | 172 | 10 |
| 27 | Ecology | 27 | 2.1K | 2183 | 1601 |
| 28 | organization | 1 | 1.9K | 1265 | 203 |
| 29 | Demography | 22 | 1.8K | 130 | 66 |
| 30 | Immunology | 19 | 1.8K | 1110 | 769 |
| 31 | Analytical Chemistry | 25 | 1.7K | 1665 | 1086 |
| 32 | Cytology | 42 | 1.7K | 1048 | 1123 |
| 33 | Research | 47 | 1.7K | 2113 | 1842 |
| 34 | Botany | 23 | 1.6K | 1442 | 1012 |
| 35 | Public Health | 34 | 1.6K | 1411 | 1097 |
| 36 | Biocompatible Materials | 26 | 1.5K | 1280 | 1173 |
| 37 | Pharmacy | 16 | 1.5K | 813 | 344 |
| 38 | Pollution | 23 | 1.5K | 2076 | 1662 |
| 39 | Pharmacology | 26 | 1.5K | 1684 | 1266 |
| 40 | Environment | 16 | 1.4K | 2081 | 1678 |
| 41 | Behavior | 21 | 1.4K | 1105 | 883 |
| 42 | Microbiology | 27 | 1.4K | 2053 | 1736 |
| 43 | Plants | 14 | 1.4K | 900 | 540 |
| 44 | Materials Science | 28 | 1.4K | 1563 | 1270 |
| 45 | plant molecular biology | 10 | 1.4K | 765 | 496 |
| 46 | Allergy | 4 | 1.4K | 777 | 374 |
| 47 | Obesity | 7 | 1.4K | 1077 | 465 |
| 48 | Developmental Biology | 11 | 1.3K | 886 | 567 |
| 49 | Biotechnology | 24 | 1.3K | 2051 | 1727 |
| 50 | Nutrition | 24 | 1.3K | 1385 | 1078 |
| 51 | Adolescent | 23 | 1.2K | 589 | 394 |
| 52 | Environmental Management | 10 | 1.1K | 1607 | 963 |
| 53 | Mathematics | 47 | 1.1K | 1948 | 1318 |
| 54 | Plant cells | 8 | 1.1K | 628 | 530 |
| 55 | Child Development | 19 | 1.0K | 681 | 523 |
| 56 | Toxicology | 13 | 1.0K | 2166 | 1419 |
| 57 | Psychophysiology | 20 | 1.0K | 1052 | 903 |
| 58 | Environmental Policy | 8 | 977 | 1972 | 1117 |
| 59 | Human genetics | 4 | 962 | 1240 | 1094 |
| 59 | Nanostructured Materials | 15 | 962 | 1459 | 1064 |
| 61 | Meteorology | 6 | 952 | 1444 | 722 |
| 62 | Neurology | 17 | 927 | 1813 | 1509 |
| 63 | human behavior | 15 | 908 | 986 | 926 |
| 64 | Sociology | 15 | 901 | 1268 | 742 |
| 65 | adolescence | 11 | 897 | 428 | 260 |
| 66 | Catalysis | 19 | 873 | 1623 | 1469 |
| 67 | Child psychology | 10 | 858 | 718 | 527 |
| 68 | child abuse | 13 | 807 | 330 | 242 |
| 69 | Medical genetics | 9 | 773 | 1143 | 936 |
| 70 | Social Psychology | 13 | 758 | 1009 | 765 |
| 70 | Medical Anthropology | 10 | 758 | 576 | 428 |
| 72 | Virology | 11 | 757 | 1278 | 1166 |
| 73 | Immune system | 4 | 756 | 685 | 469 |
| 74 | Cognitive neuroscience | 7 | 753 | 605 | 401 |
| 75 | management | 7 | 744 | 2256 | 1333 |
| 76 | educational accountability | 2 | 726 | 122 | 11 |
| 77 | Socialization | 2 | 686 | 676 | 174 |
| 77 | role | 2 | 686 | 560 | 121 |
| 79 | drug therapy | 14 | 685 | 821 | 664 |
| 80 | Critical Care | 8 | 668 | 714 | 630 |
| 80 | Critical Care Medicine | 8 | 668 | 701 | 631 |
| 82 | Epidemiology | 13 | 626 | 1570 | 1146 |
| 83 | Geriatrics | 13 | 613 | 1216 | 857 |
| 84 | Psychiatry | 11 | 608 | 1922 | 1459 |
| 84 | behavioral medicine | 4 | 608 | 1013 | 522 |
| 86 | Chemotherapy | 9 | 600 | 594 | 388 |
| 87 | Optical materials | 12 | 595 | 1362 | 1165 |
| 88 | Hydrology | 10 | 594 | 1264 | 859 |
| 88 | Youth | 7 | 594 | 405 | 248 |
| 88 | pain | 6 | 594 | 801 | 492 |
| 91 | Bioengineering | 13 | 590 | 1986 | 1832 |
| 92 | Environmental Engineering | 13 | 584 | 1827 | 1482 |
| 93 | Neurophysiology | 15 | 572 | 1191 | 1150 |
| 94 | Brain | 16 | 559 | 1117 | 1046 |
| 95 | Environmental Health | 13 | 558 | 2543 | 2303 |
| 96 | Information Science | 6 | 555 | 1849 | 976 |
| 97 | Pharmaceutical Chemistry | 7 | 554 | 2182 | 1426 |
| 98 | Biophysics | 25 | 545 | 1881 | 2128 |
| 98 | Liver diseases | 6 | 545 | 796 | 654 |
| 100 | Colloids | 12 | 541 | 1973 | 1746 |
| 101 | Plant physiology | 3 | 535 | 1927 | 1029 |
| 102 | Family | 9 | 530 | 511 | 279 |
| 103 | Nanoparticles | 5 | 524 | 1433 | 746 |
| 104 | Biopharmaceutics | 5 | 514 | 767 | 387 |
| 105 | Developmental Psychology | 7 | 499 | 635 | 445 |
| 106 | Geophysics | 9 | 494 | 1932 | 1471 |
| 107 | Growth | 7 | 489 | 655 | 613 |
| 108 | Economics | 13 | 479 | 2062 | 1459 |
| 109 | Cognitive Science | 6 | 463 | 1067 | 670 |
| 110 | Cytogenetics | 4 | 461 | 999 | 665 |
| 111 | Biomedical Engineering | 18 | 457 | 2056 | 2173 |
| 112 | Plant Genetics | 2 | 447 | 761 | 367 |
| 113 | Polymers | 12 | 434 | 2313 | 1904 |
| 114 | Diabetes mellitus | 7 | 433 | 1063 | 902 |
| 114 | Diabetes | 7 | 433 | 1105 | 928 |
| 116 | urban health | 2 | 430 | 313 | 85 |
| 117 | city planning | 5 | 428 | 1200 | 610 |
| 118 | Neurochemistry | 10 | 421 | 1191 | 1073 |
| 119 | Chemical Engineering | 16 | 419 | 2134 | 2339 |
| 120 | Child | 8 | 416 | 1247 | 886 |
| 121 | sanitation | 7 | 413 | 913 | 996 |
| 122 | Food | 11 | 408 | 1633 | 1578 |
| 123 | Oncology | 9 | 402 | 1024 | 1245 |
| 124 | Gerontology | 5 | 401 | 1358 | 646 |
| 125 | Atmospheric Chemistry | 1 | 386 | 1148 | 566 |
| 125 | Atmospheric Physics | 1 | 386 | 1978 | 775 |
| 127 | Mathematical Physics | 11 | 376 | 1634 | 1127 |
| 128 | Agricultural Chemistry | 15 | 372 | 911 | 1102 |
| 129 | Food additives | 6 | 364 | 716 | 565 |
| 129 | hydrocolloids | 6 | 364 | 407 | 418 |
| 131 | Biochemical Engineering | 9 | 359 | 1869 | 2101 |
| 131 | Nanostructures | 7 | 359 | 1287 | 1004 |
| 133 | Cell differentiation | 5 | 355 | 990 | 911 |
| 134 | families | 6 | 354 | 582 | 272 |
| 135 | Social Sciences | 13 | 350 | 1621 | 1217 |
| 136 | Molecular Microbiology | 1 | 348 | 1124 | 564 |
| 136 | feeding behavior | 5 | 348 | 518 | 371 |
| 136 | Appetite | 5 | 348 | 456 | 337 |
| 139 | Immunopathology | 3 | 343 | 945 | 584 |
| 139 | Sexual health | 1 | 343 | 1028 | 233 |
| 141 | older people | 7 | 336 | 956 | 480 |
| 142 | Biomass Energy | 9 | 331 | 1404 | 1534 |
| 143 | Building Materials | 7 | 327 | 1179 | 1183 |
| 144 | Green Chemistry | 7 | 326 | 1154 | 1140 |
| 145 | Learning | 21 | 323 | 431 | 637 |
| 146 | Plant Ecology | 6 | 320 | 1202 | 1041 |
| 147 | environmental pollution | 12 | 313 | 2260 | 2673 |
| 147 | Population | 5 | 313 | 648 | 407 |
| 149 | Statistical physics | 10 | 312 | 1907 | 1645 |
| 150 | Mental Health Services | 9 | 309 | 591 | 483 |
| 151 | Substance Abuse | 10 | 307 | 698 | 629 |
| 152 | Diet | 8 | 306 | 1079 | 1219 |
| 153 | Entomology | 14 | 305 | 1028 | 897 |
| 154 | mycoses | 3 | 304 | 695 | 519 |
| 154 | Bacterial infections | 3 | 304 | 694 | 522 |
| 154 | Host-parasite interactions | 3 | 304 | 1061 | 816 |
| 157 | Electrochemistry | 14 | 303 | 1955 | 1877 |
| 158 | children | 2 | 302 | 589 | 245 |
| 159 | Hydraulic Engineering | 2 | 301 | 990 | 408 |
| 160 | Mental Disorders | 7 | 295 | 1605 | 1430 |
| 161 | health behavior | 3 | 294 | 854 | 433 |
| 161 | Adolescent Psychology | 3 | 294 | 779 | 444 |
| 163 | Physiology | 16 | 290 | 1676 | 2127 |
| 163 | Child welfare | 16 | 290 | 367 | 447 |
| 165 | Neuropsychology | 9 | 281 | 1217 | 1147 |
| 165 | Quality of life | 2 | 281 | 1648 | 786 |
| 167 | Animal Behavior | 6 | 275 | 1243 | 1142 |
| 167 | health services | 8 | 275 | 559 | 439 |
| 169 | Mental illness | 6 | 272 | 1143 | 1095 |
| 170 | Community Psychology | 5 | 271 | 407 | 335 |
| 171 | personality | 5 | 269 | 1105 | 961 |
| 172 | Library Science | 8 | 254 | 489 | 192 |
| 172 | Demographic research | 3 | 254 | 114 | 102 |
| 174 | biological evolution | 6 | 252 | 1327 | 1373 |
| 175 | Community Psychiatry | 5 | 247 | 637 | 530 |
| 176 | Drug delivery systems | 2 | 246 | 1743 | 1030 |
| 177 | Medical Microbiology | 7 | 243 | 1231 | 1385 |
| 177 | Metals | 5 | 243 | 1560 | 1134 |
| 179 | Environmental monitoring | 10 | 240 | 2141 | 2628 |
| 180 | Lipids | 4 | 237 | 1019 | 849 |
| 181 | Human evolution | 5 | 236 | 300 | 302 |
| 182 | Endocrinology | 5 | 234 | 1786 | 1646 |
| 182 | alcoholism | 7 | 234 | 829 | 793 |
| 184 | Aerosols | 5 | 233 | 390 | 275 |
| 185 | Happiness | 1 | 231 | 868 | 211 |
| 186 | China | 6 | 229 | 1973 | 1493 |
| 187 | Econometrics | 5 | 228 | 1077 | 661 |
| 188 | Psycholinguistics | 8 | 227 | 552 | 607 |
| 189 | Energy Storage | 5 | 226 | 953 | 787 |
| 190 | Business Ethics | 3 | 225 | 988 | 919 |
| 191 | Anthropology | 4 | 223 | 1260 | 696 |
| 191 | Information Retrieval | 2 | 223 | 599 | 276 |
| 193 | Physical Chemistry | 7 | 216 | 1428 | 1310 |
| 194 | Energy Conversion | 2 | 214 | 1338 | 1048 |
| 194 | Energy Harvesting | 2 | 214 | 504 | 467 |
| 194 | sexual behavior | 4 | 214 | 559 | 389 |
| 197 | Genomics | 4 | 212 | 2246 | 1780 |
| 197 | infection | 2 | 212 | 1543 | 971 |
| 199 | Clinical Chemistry | 5 | 210 | 1771 | 1582 |
| 200 | Computational neuroscience | 2 | 207 | 34 | 8 |
| 201 | Artificial Intelligence | 8 | 204 | 2375 | 2313 |
| 202 | Soil Science | 5 | 200 | 1437 | 1274 |
| 202 | disease outbreaks | 3 | 200 | 454 | 349 |
| 202 | Epidemics | 3 | 200 | 443 | 347 |
| 205 | Linguistics | 7 | 199 | 864 | 633 |
| 205 | Primates | 6 | 199 | 456 | 373 |
| 207 | Optics | 10 | 198 | 2389 | 2074 |
| 208 | Industrial Engineering | 6 | 193 | 1246 | 1176 |
| 208 | Pharmacy management | 10 | 193 | 107 | 119 |
| 210 | Molecular structure | 1 | 192 | 3185 | 1377 |
| 210 | miniaturization | 3 | 192 | 1655 | 1303 |
| 212 | Discourse Analysis | 3 | 188 | 378 | 214 |
| 212 | Religion | 13 | 188 | 364 | 204 |
| 212 | Human biology | 1 | 188 | 1045 | 289 |
| 215 | Nonlinear Dynamics | 7 | 187 | 1298 | 1196 |
| 216 | Sustainable Engineering | 5 | 185 | 1232 | 1229 |
| 217 | mathematical analysis | 9 | 184 | 1611 | 1236 |
| 218 | Microelectronics | 2 | 183 | 1787 | 1204 |
| 219 | Public Policy | 5 | 182 | 1281 | 1151 |
| 220 | Mathematical Economics | 1 | 176 | 504 | 218 |
| 221 | Behavioral research | 4 | 172 | 468 | 193 |
| 221 | food contamination | 9 | 172 | 436 | 502 |
| 223 | Religion and Sociology | 3 | 170 | 246 | 47 |
| 224 | Geology | 7 | 169 | 1869 | 1786 |
| 224 | Leisure | 1 | 169 | 583 | 231 |
| 226 | drug addiction | 4 | 168 | 834 | 776 |
| 227 | Agriculture | 10 | 167 | 1046 | 1388 |
| 228 | elder abuse | 2 | 164 | 372 | 213 |
| 228 | family violence | 2 | 164 | 520 | 341 |
| 230 | carbon monoxide | 2 | 163 | 459 | 293 |
| 231 | Food Preservation | 9 | 162 | 351 | 364 |
| 231 | Thorax | 1 | 162 | 543 | 306 |
| 233 | Photochemistry | 4 | 161 | 1451 | 1196 |
| 234 | Pediatrics | 9 | 158 | 1127 | 1518 |
| 234 | Mental Health | 6 | 158 | 1046 | 965 |
| 236 | Photobiology | 2 | 157 | 1622 | 967 |
| 237 | Metallurgy | 9 | 155 | 1312 | 1360 |
| 238 | Statistics | 7 | 154 | 1697 | 1370 |
| 239 | Health Services Administration | 3 | 152 | 963 | 621 |
| 239 | Solid State Chemistry | 7 | 152 | 1761 | 1669 |
| 241 | Energy Policy | 2 | 151 | 2836 | 2362 |
| 241 | Bioorganic chemistry | 5 | 151 | 2052 | 1992 |
| 243 | environmental protection | 4 | 149 | 2985 | 2752 |
| 244 | Experimental Psychology | 3 | 148 | 592 | 434 |
| 245 | psychotherapy | 4 | 147 | 1020 | 871 |
| 246 | polymerization | 3 | 146 | 3136 | 2418 |
| 247 | Clinical Psychology | 6 | 145 | 799 | 921 |
| 248 | Health insurance | 1 | 144 | 700 | 284 |
| 249 | Education | 8 | 143 | 2216 | 2085 |
| 250 | drug development | 2 | 142 | 992 | 899 |
| 251 | Genetic engineering | 5 | 141 | 1447 | 1536 |
| 251 | Memory | 4 | 141 | 1223 | 1175 |
| 251 | Catalysts | 5 | 141 | 507 | 445 |
| 254 | Medical Oncology | 3 | 139 | 1265 | 1139 |
| 255 | Medical innovations | 1 | 138 | 1261 | 1017 |
| 256 | Biosensors | 2 | 137 | 1406 | 1388 |
| 256 | Leadership | 2 | 137 | 689 | 547 |
| 256 | Bioelectronics | 2 | 137 | 1262 | 1256 |
| 259 | Parasitology | 3 | 136 | 2073 | 1558 |
| 260 | Pathology | 2 | 135 | 1761 | 1368 |
| 260 | Surface Chemistry | 5 | 135 | 2683 | 2745 |
| 262 | Smoking | 2 | 134 | 820 | 621 |
| 263 | preventive medicine | 3 | 133 | 1030 | 931 |
| 263 | nucleic acids | 4 | 133 | 1203 | 1312 |
| 265 | Solid State Physics | 9 | 132 | 2297 | 2411 |
| 265 | Metallic Glasses | 2 | 132 | 550 | 336 |
| 267 | Organic Chemistry | 4 | 131 | 2454 | 2190 |
| 267 | coal | 2 | 131 | 1834 | 1532 |
| 269 | Topology | 6 | 130 | 227 | 154 |
| 270 | Industrial Microbiology | 4 | 129 | 1608 | 1745 |
| 271 | Urology | 2 | 127 | 1281 | 961 |
| 272 | Mechanical Engineering | 2 | 126 | 2584 | 1453 |
| 272 | Music | 2 | 126 | 1065 | 441 |
| 272 | voice | 2 | 126 | 575 | 301 |
| 275 | fuel cells | 1 | 125 | 1670 | 1161 |
| 275 | Teaching | 16 | 125 | 673 | 1177 |
| 277 | Economic History | 3 | 124 | 3009 | 1966 |
| 277 | Informatics | 5 | 124 | 622 | 669 |
| 279 | Electromagnetism | 2 | 121 | 1189 | 705 |
| 279 | Emergency Medicine | 2 | 121 | 1305 | 765 |
| 279 | Boundary Value Problems | 2 | 121 | 958 | 510 |
| 279 | Antenna Arrays | 2 | 121 | 633 | 453 |
| 279 | Transportation | 9 | 121 | 919 | 1271 |
| 279 | Wireless Communication Systems | 2 | 121 | 2458 | 1658 |
| 279 | Technology | 6 | 121 | 2555 | 2641 |
| 286 | Agricultural Engineering | 3 | 120 | 439 | 376 |
| 286 | Geometry | 4 | 120 | 1053 | 545 |
| 288 | Medical Laboratory Science | 6 | 118 | 1303 | 1764 |
| 288 | Roads | 8 | 118 | 406 | 408 |
| 290 | Engineering | 10 | 116 | 2456 | 2883 |
| 290 | Climate Change Mitigation | 1 | 116 | 93 | 100 |
| 290 | Global warming | 1 | 116 | 342 | 115 |
| 290 | sea level | 1 | 116 | 93 | 100 |
| 294 | Urban Economics | 1 | 115 | 591 | 358 |
| 294 | Language and Education | 1 | 115 | 276 | 68 |
| 294 | urban population | 1 | 115 | 385 | 279 |
| 297 | Agricultural Ecology | 3 | 113 | 995 | 1076 |
| 298 | Telemedicine | 1 | 112 | 629 | 270 |
| 298 | industrial relations | 2 | 112 | 1012 | 584 |
| 298 | RNA | 1 | 112 | 754 | 505 |
| 301 | Computer Science | 3 | 111 | 2062 | 1384 |
| 301 | Cell death | 2 | 111 | 1080 | 1108 |
| 303 | pain management | 2 | 110 | 655 | 451 |
| 304 | Anatomy | 3 | 109 | 1727 | 1415 |
| 304 | Bioremediation | 2 | 109 | 1120 | 850 |
| 306 | Histology | 1 | 106 | 2244 | 1484 |
| 306 | Macroeconomics | 1 | 106 | 656 | 248 |
| 306 | Sustainable agriculture | 5 | 106 | 494 | 611 |
| 309 | Plant diseases | 3 | 105 | 1782 | 1463 |
| 309 | proteins | 4 | 105 | 1541 | 1505 |
| 311 | Heat Exchangers | 4 | 104 | 1096 | 1287 |
| 311 | aerosol | 1 | 104 | 604 | 315 |
| 313 | Mineralogy | 5 | 103 | 983 | 1024 |
| 313 | health workforce | 2 | 103 | 221 | 210 |
| 315 | carcinogens | 2 | 102 | 1031 | 854 |
| 315 | Psychiatric Epidemiology | 2 | 102 | 560 | 513 |
| 315 | Suicide | 1 | 102 | 898 | 426 |
| 318 | Carbon | 2 | 100 | 1441 | 1476 |
| 318 | arthritis | 2 | 100 | 988 | 1016 |
| 318 | language | 5 | 100 | 624 | 731 |
| 321 | Speech Disorders | 4 | 99 | 812 | 815 |
| 322 | Neurolinguistics | 3 | 98 | 428 | 468 |
| 322 | Business | 2 | 98 | 2432 | 2073 |
| 322 | Speech | 3 | 98 | 844 | 801 |
| 325 | Water pollution | 4 | 97 | 2198 | 2462 |
| 326 | Bacteriology | 2 | 95 | 1808 | 1704 |
| 326 | Insects | 2 | 95 | 1617 | 1096 |
| 328 | enzymes | 3 | 94 | 1359 | 1352 |
| 329 | Operations Research | 7 | 91 | 1491 | 1814 |
| 329 | Water | 3 | 91 | 2196 | 2473 |
| 329 | Ethology | 3 | 91 | 1302 | 1477 |
| 332 | Biodegradation | 1 | 90 | 1304 | 846 |
| 332 | Communication | 3 | 90 | 2029 | 1734 |
| 334 | Sleep Disorders | 3 | 89 | 1251 | 1154 |
| 334 | Sleep | 3 | 89 | 1278 | 1165 |
| 336 | Nursing | 8 | 88 | 1150 | 1402 |
| 336 | economic policy | 3 | 88 | 2236 | 1601 |
| 336 | Perception | 4 | 88 | 1271 | 1331 |
| 339 | Anxiety Disorders | 2 | 87 | 583 | 629 |
| 339 | Anxiety | 2 | 87 | 580 | 627 |
| 341 | indoor air pollution | 2 | 86 | 472 | 394 |
| 341 | Ventilation | 2 | 86 | 656 | 470 |
| 341 | Sick building syndrome | 2 | 86 | 472 | 394 |
| 344 | Magnetic Materials | 3 | 85 | 1459 | 1377 |
| 344 | actuators | 4 | 85 | 1837 | 2168 |
| 344 | transducers | 4 | 85 | 1837 | 2168 |
| 347 | Agronomy | 4 | 84 | 339 | 575 |
| 347 | Health | 5 | 84 | 1512 | 1745 |
| 347 | Extreme Value Theory | 4 | 84 | 54 | 60 |
| 350 | Computational Fluid Dynamics | 3 | 83 | 651 | 597 |
| 351 | Drug design | 6 | 82 | 993 | 1454 |
| 352 | Philosophy | 3 | 81 | 1451 | 785 |
| 352 | Development Economics | 1 | 81 | 770 | 373 |
| 352 | poverty | 1 | 81 | 796 | 402 |
| 352 | Arthropods | 1 | 81 | 510 | 156 |
| 356 | Birth control | 2 | 80 | 539 | 487 |
| 357 | Embryology | 1 | 79 | 1662 | 1363 |
| 357 | Nanomedicine | 1 | 79 | 495 | 339 |
| 357 | Microbial Ecology | 1 | 79 | 2707 | 2380 |
| 360 | Carcinogenesis | 1 | 78 | 1273 | 991 |
| 360 | mutagens | 1 | 78 | 986 | 839 |
| 362 | Clinical Pharmacology | 4 | 77 | 973 | 1118 |
| 362 | food technology | 5 | 77 | 1940 | 2565 |
| 362 | Cell cycle | 1 | 77 | 497 | 296 |
| 362 | cell proliferation | 1 | 77 | 532 | 315 |
| 362 | drug evaluation | 5 | 77 | 932 | 1248 |
| 367 | Diagnostic Imaging | 3 | 76 | 1629 | 1471 |
| 368 | Social behavior | 2 | 75 | 1332 | 1145 |
| 369 | Bioinformatics | 7 | 74 | 1234 | 1813 |
| 369 | Nervous system | 3 | 74 | 1988 | 2106 |
| 369 | Attention | 3 | 74 | 1305 | 1325 |
| 372 | Metabolism | 3 | 72 | 1856 | 2194 |
| 372 | viruses | 2 | 72 | 1306 | 1416 |
| 372 | Chromatographic analysis | 5 | 72 | 1389 | 1613 |
| 375 | Climatology | 3 | 71 | 1634 | 1781 |
| 375 | biofuels | 2 | 71 | 321 | 546 |
| 375 | Proteome | 2 | 71 | 1147 | 1177 |
| 375 | Body Image | 2 | 71 | 279 | 349 |
| 375 | Biomass | 4 | 71 | 563 | 975 |
| 380 | Health Services Research | 4 | 70 | 1279 | 1409 |
| 380 | air quality management | 1 | 70 | 976 | 619 |
| 380 | Earth Sciences | 2 | 70 | 3320 | 2771 |
| 383 | Physical Therapy | 2 | 69 | 1363 | 1219 |
| 383 | Diagnostic microbiology | 1 | 69 | 1315 | 1343 |
| 383 | drug abuse | 2 | 69 | 730 | 594 |
| 386 | Visual Perception | 2 | 68 | 1467 | 1310 |
| 387 | Manufacturing Processes | 4 | 67 | 1912 | 2094 |
| 387 | Production Engineering | 4 | 67 | 1700 | 1721 |
| 387 | Regional Planning | 2 | 67 | 1660 | 1422 |
| 387 | Oncogenes | 1 | 67 | 1150 | 1215 |
| 391 | Information Theory | 1 | 66 | 1904 | 1319 |
| 391 | Lung Transplantation | 1 | 66 | 477 | 367 |
| 391 | Intelligence | 1 | 66 | 431 | 319 |
| 391 | Heart transplantation | 1 | 66 | 477 | 367 |
| 391 | Neurons | 1 | 66 | 743 | 963 |
| 396 | Solar Energy | 2 | 64 | 1998 | 2115 |
| 396 | Simulation Methods | 2 | 64 | 1313 | 1051 |
| 398 | Composite Materials | 1 | 63 | 3093 | 2688 |
| 398 | Lightweight concrete | 1 | 63 | 700 | 786 |
| 398 | concrete | 1 | 63 | 1323 | 1223 |
| 398 | Agricultural systems | 3 | 63 | 297 | 499 |
| 398 | Women's health | 4 | 63 | 1022 | 1224 |
| 403 | Biomechanics | 2 | 62 | 1445 | 1327 |
| 403 | Celestial Mechanics | 1 | 62 | 307 | 184 |
| 403 | health planning | 7 | 62 | 1442 | 2099 |
| 406 | Environmental Chemistry | 2 | 61 | 2341 | 2456 |
| 406 | Soft Condensed Matter | 2 | 61 | 1177 | 1146 |
| 406 | pollutants | 2 | 61 | 2120 | 2335 |
| 406 | Environmental pollutants | 2 | 61 | 2444 | 2587 |
| 406 | Social problems | 4 | 61 | 523 | 720 |
| 406 | Condensed Matter | 7 | 61 | 1955 | 2478 |
| 406 | biopolymers | 2 | 61 | 1281 | 1263 |
| 413 | Marine Biology | 2 | 60 | 2575 | 2469 |
| 413 | healthcare disparities | 3 | 60 | 468 | 566 |
| 413 | Cognitive Therapy | 1 | 60 | 987 | 672 |
| 416 | Bioenergetics | 1 | 59 | 1234 | 1057 |
| 416 | consumer behavior | 3 | 59 | 550 | 771 |
| 418 | Animal ecology | 2 | 58 | 1265 | 1187 |
| 418 | Developmental Neurobiology | 4 | 58 | 436 | 588 |
| 418 | counseling | 3 | 58 | 1220 | 1232 |
| 418 | biological factors | 3 | 58 | 1822 | 2003 |
| 418 | Japan | 1 | 58 | 2617 | 1639 |
| 418 | Evolution | 2 | 58 | 1917 | 1905 |
| 418 | Vaccines | 3 | 58 | 1485 | 1678 |
| 425 | Veterinary Immunology | 3 | 57 | 315 | 375 |
| 425 | Renewable Energy Sources | 2 | 57 | 2850 | 3283 |
| 425 | Earthquakes | 3 | 57 | 353 | 363 |
| 425 | Crystal growth | 2 | 57 | 1198 | 1170 |
| 429 | Geriatric Psychiatry | 1 | 56 | 1374 | 1050 |
| 429 | African Americans | 2 | 56 | 263 | 155 |
| 431 | Algebra | 6 | 55 | 1128 | 1036 |
| 431 | Radio waves | 1 | 55 | 1180 | 966 |
| 431 | Urban Areas | 1 | 55 | 470 | 263 |
| 431 | Radio | 1 | 55 | 1867 | 1452 |
| 431 | Southern states | 2 | 55 | 372 | 226 |
| 431 | Menopause | 1 | 55 | 495 | 354 |
| 437 | Neuroimaging | 2 | 54 | 329 | 283 |
| 437 | Computational Biology | 4 | 54 | 1957 | 2465 |
| 437 | Biogeochemistry | 1 | 54 | 1484 | 1379 |
| 437 | Crystallography | 59 | 54 | 227 | 1101 |
| 437 | Production Management | 2 | 54 | 1371 | 1578 |
| 437 | food handling | 2 | 54 | 1120 | 1376 |
| 437 | ecosystem | 1 | 54 | 1851 | 1700 |
| 437 | mental processes | 2 | 54 | 436 | 360 |
| 445 | Control Theory | 4 | 53 | 1522 | 1636 |
| 445 | Herbal medicine | 2 | 53 | 903 | 1173 |
| 445 | medical education | 5 | 53 | 1178 | 1622 |
| 445 | race relations | 3 | 53 | 606 | 620 |
| 449 | ethnicity | 2 | 52 | 869 | 622 |
| 449 | Exercise therapy | 2 | 52 | 606 | 461 |
| 451 | Hematology | 1 | 51 | 2072 | 1749 |
| 451 | Nutrition physiology | 3 | 51 | 677 | 946 |
| 451 | Semiconductors | 4 | 51 | 1871 | 2057 |
| 451 | pediatric pharmacology | 1 | 51 | 142 | 43 |
| 451 | dietary supplements | 3 | 51 | 883 | 1225 |
| 451 | Geriatric Oncology | 1 | 51 | 807 | 704 |
| 451 | Sports | 4 | 51 | 1720 | 1817 |
| 451 | Transplantation | 3 | 51 | 780 | 1001 |
| 451 | Exercise | 3 | 51 | 1446 | 1454 |
| 460 | Computer Architecture | 3 | 50 | 548 | 511 |
| 460 | Measurement | 4 | 50 | 1197 | 1557 |
| 460 | behavior modification | 1 | 50 | 581 | 577 |
| 460 | child behavior | 1 | 50 | 606 | 522 |
| 464 | Photonics | 3 | 49 | 1688 | 1963 |
| 464 | Maternal health services | 3 | 49 | 356 | 508 |
| 464 | protein | 2 | 49 | 1263 | 1243 |
| 464 | finance | 2 | 49 | 2567 | 2281 |
| 468 | Cross-Cultural Studies | 2 | 48 | 936 | 919 |
| 469 | Medical Technology | 4 | 47 | 1251 | 1831 |
| 469 | Obsessive-Compulsive Disorder | 4 | 47 | 84 | 128 |
| 469 | Chromatography | 4 | 47 | 1369 | 1754 |
| 469 | Social policy | 2 | 47 | 1253 | 1096 |
| 469 | liver | 1 | 47 | 481 | 383 |
| 474 | Neurobiology | 3 | 46 | 1334 | 1805 |
| 474 | Telecommunication Systems | 3 | 46 | 1627 | 1639 |
| 474 | Neural circuitry | 2 | 46 | 2308 | 2449 |
| 477 | Fluid Mechanics | 4 | 45 | 1272 | 1540 |
| 477 | Health Policy | 4 | 45 | 1657 | 2190 |
| 477 | Developmental Genetics | 1 | 45 | 646 | 711 |
| 477 | Organizational change | 1 | 45 | 1261 | 934 |
| 477 | Adoption | 1 | 45 | 231 | 115 |
| 477 | complementary therapies | 1 | 45 | 2563 | 2089 |
| 477 | Religion and Psychology | 1 | 45 | 1035 | 577 |
| 484 | Petrology | 1 | 44 | 1180 | 1059 |
| 484 | Geochemistry | 1 | 44 | 2423 | 2162 |
| 484 | marketing | 3 | 44 | 1821 | 2230 |
| 484 | human development | 3 | 44 | 772 | 1101 |
| 488 | Neuropsychiatry | 2 | 43 | 857 | 956 |
| 488 | Nuclear Physics | 3 | 43 | 3274 | 3312 |
| 488 | Water quality management | 4 | 43 | 1545 | 2072 |
| 488 | Chemical analysis | 1 | 43 | 1562 | 1418 |
| 488 | Reproduction | 2 | 43 | 2076 | 2120 |
| 493 | Electronics | 4 | 42 | 2686 | 2932 |
| 493 | community development | 2 | 42 | 739 | 773 |
| 493 | Molecular evolution | 1 | 42 | 2076 | 2024 |
| 493 | Hospitals | 1 | 42 | 577 | 412 |
| 493 | community organization | 1 | 42 | 144 | 94 |
| 493 | public records | 1 | 42 | 81 | 28 |
| 499 | Pediatric Endocrinology | 1 | 41 | 542 | 293 |
| 500 | Primary health care | 6 | 40 | 1088 | 1871 |
| 500 | Osteoporosis | 1 | 40 | 594 | 478 |
| 502 | Dentistry | 5 | 39 | 536 | 701 |
| 502 | Asia | 3 | 39 | 2809 | 2865 |
| 502 | Combinatorial analysis | 3 | 39 | 1039 | 859 |
| 502 | optical devices | 2 | 39 | 627 | 647 |
| 506 | Andrology | 2 | 38 | 651 | 747 |
| 506 | motivation | 1 | 38 | 662 | 564 |
| 506 | Emotion | 1 | 38 | 409 | 422 |
| 506 | Emotions | 1 | 38 | 903 | 894 |
| 510 | Electrophoresis | 2 | 37 | 1745 | 1928 |
| 510 | System analysis | 1 | 37 | 3163 | 2697 |
| 510 | energy resources | 1 | 37 | 1920 | 2204 |
| 513 | Geochemical Modeling | 1 | 36 | 378 | 375 |
| 513 | geological modeling | 1 | 36 | 950 | 716 |
| 513 | probabilities | 3 | 36 | 1310 | 1207 |
| 513 | sex differences | 1 | 36 | 271 | 281 |
| 517 | Ophthalmology | 3 | 35 | 1415 | 1780 |
| 517 | Chronobiology | 1 | 35 | 886 | 696 |
| 517 | Dynamics | 2 | 35 | 1910 | 1717 |
| 517 | Circadian rhythms | 1 | 35 | 673 | 627 |
| 517 | biological clocks | 1 | 35 | 886 | 696 |
| 517 | Hormones | 1 | 35 | 1548 | 1509 |
| 517 | Wind power | 1 | 35 | 530 | 404 |
| 517 | circadian rhythm | 1 | 35 | 886 | 696 |
| 517 | biological rhythms | 1 | 35 | 849 | 684 |
| 517 | Vision | 3 | 35 | 614 | 886 |
| 517 | Respiration | 1 | 35 | 1744 | 1691 |
| 517 | violence | 1 | 35 | 1487 | 1328 |
| 517 | genome | 3 | 35 | 1271 | 1913 |
| 517 | Aggression | 1 | 35 | 811 | 803 |
| 531 | Molecular Genetics | 1 | 34 | 2219 | 2333 |
| 531 | Population Genetics | 1 | 34 | 1599 | 1683 |
| 531 | Parasitic Diseases | 1 | 34 | 2412 | 2243 |
| 531 | Molecular ecology | 1 | 34 | 1400 | 1686 |
| 531 | Parasites | 1 | 34 | 2138 | 1893 |
| 531 | Gastrointestinal diseases | 1 | 34 | 955 | 818 |
| 537 | Orthopedics | 1 | 33 | 1678 | 1499 |
| 537 | Dermatology | 3 | 33 | 1310 | 1601 |
| 537 | Orthopedic Surgery | 1 | 33 | 1009 | 875 |
| 537 | Human-Computer Interaction | 1 | 33 | 2332 | 2076 |
| 537 | Randomized Controlled Trials | 1 | 33 | 1372 | 1083 |
| 537 | Budget | 1 | 33 | 310 | 198 |
| 543 | Quality Control | 1 | 32 | 2580 | 2468 |
| 543 | data collection | 2 | 32 | 1316 | 1644 |
| 545 | Nuclear Engineering | 1 | 31 | 1945 | 1516 |
| 545 | Nuclear Energy | 1 | 31 | 1494 | 1099 |
| 545 | Intercultural Communication | 1 | 31 | 841 | 706 |
| 545 | Financial Engineering | 1 | 31 | 366 | 383 |
| 545 | Reproductive health | 1 | 31 | 1198 | 1115 |
| 545 | water supply | 1 | 31 | 1298 | 1346 |
| 545 | Radiation effects | 1 | 31 | 1066 | 1172 |
| 552 | Occupational Therapy | 4 | 30 | 843 | 1013 |
| 552 | civil rights | 1 | 30 | 713 | 507 |
| 552 | Chromosome mapping | 3 | 30 | 1515 | 2352 |
| 552 | Sexuality | 1 | 30 | 565 | 440 |
| 552 | drugs | 3 | 30 | 1747 | 2418 |
| 552 | gene mapping | 3 | 30 | 1645 | 2518 |
| 558 | Paleontology | 2 | 29 | 1379 | 1484 |
| 558 | Semantics | 1 | 29 | 429 | 312 |
| 558 | Marine Pollution | 1 | 29 | 1805 | 1924 |
| 558 | Mycology | 3 | 29 | 1440 | 1929 |
| 558 | particles | 3 | 29 | 1029 | 1531 |
| 558 | Elections | 2 | 29 | 412 | 451 |
| 558 | Microscopy | 1 | 29 | 2015 | 1637 |
| 558 | harm reduction | 1 | 29 | 359 | 331 |
| 558 | Cerebral cortex | 2 | 29 | 934 | 1265 |
| 567 | Automation | 4 | 28 | 1878 | 2666 |
| 567 | Emerging infectious diseases | 1 | 28 | 559 | 670 |
| 567 | ovary | 1 | 28 | 380 | 418 |
| 567 | North America | 1 | 28 | 1329 | 1077 |
| 571 | Restoration Ecology | 1 | 27 | 731 | 723 |
| 572 | Data Mining | 1 | 26 | 2530 | 2417 |
| 572 | Paleoclimatology | 1 | 26 | 1450 | 1524 |
| 572 | Paleoecology | 1 | 26 | 1428 | 1463 |
| 572 | Ceramics | 2 | 26 | 1669 | 1768 |
| 572 | Paleogeography | 1 | 26 | 1295 | 1343 |
| 572 | Ornithology | 3 | 26 | 928 | 1117 |
| 572 | population policy | 2 | 26 | 206 | 284 |
| 572 | Glass | 2 | 26 | 1189 | 1466 |
| 572 | pottery | 2 | 26 | 1148 | 1420 |
| 572 | Birds | 3 | 26 | 1075 | 1261 |
| 582 | Cloud Computing | 1 | 25 | 646 | 721 |
| 582 | Nonlinear functional analysis | 1 | 25 | 1716 | 1525 |
| 582 | Plastics | 1 | 25 | 2312 | 2149 |
| 582 | scientific societies | 2 | 25 | 851 | 1142 |
| 586 | Signal Processing | 2 | 24 | 2574 | 2983 |
| 586 | Land use | 1 | 24 | 1776 | 1909 |
| 586 | soil conservation | 1 | 24 | 1319 | 1423 |
| 586 | land degradation | 1 | 24 | 902 | 1029 |
| 586 | Transport | 1 | 24 | 947 | 1054 |
| 586 | Sea | 1 | 24 | 845 | 916 |
| 586 | Fishery resources | 1 | 24 | 931 | 994 |
| 586 | internet | 3 | 24 | 1555 | 2239 |
| 586 | degradation | 1 | 24 | 902 | 1029 |
| 586 | Fisheries | 1 | 24 | 2146 | 1981 |
| 596 | Structuralism | 1 | 23 | 290 | 395 |
| 596 | Nanochemistry | 2 | 23 | 1506 | 1959 |
| 596 | Social Networks | 1 | 23 | 656 | 656 |
| 596 | Rheology | 2 | 23 | 691 | 909 |
| 600 | Food Safety | 1 | 22 | 591 | 593 |
| 600 | Cartography | 1 | 22 | 847 | 635 |
| 600 | Statistical Mechanics | 1 | 22 | 960 | 812 |
| 600 | Depression | 1 | 22 | 568 | 779 |
| 600 | Geographic information systems | 1 | 22 | 1780 | 1609 |
| 600 | Image Processing | 2 | 22 | 2332 | 2733 |
| 600 | Wildlife management | 2 | 22 | 661 | 822 |
| 600 | Animal welfare | 2 | 22 | 335 | 571 |
| 600 | school environment | 2 | 22 | 134 | 264 |
| 600 | Philippines | 1 | 22 | 255 | 245 |
| 610 | Humanities | 3 | 21 | 1956 | 2387 |
| 610 | Obstetrics | 1 | 21 | 2458 | 2484 |
| 610 | Functional Analysis | 2 | 21 | 1564 | 1653 |
| 610 | Proteomics | 1 | 21 | 1419 | 1648 |
| 610 | glycoproteins | 4 | 21 | 364 | 818 |
| 610 | Glycoconjugates | 4 | 21 | 364 | 818 |
| 610 | Biometrics | 1 | 21 | 1385 | 1292 |
| 610 | Oligosaccharides | 4 | 21 | 176 | 533 |
| 610 | mathematical concepts | 1 | 21 | 721 | 609 |
| 610 | glycolipids | 4 | 21 | 364 | 818 |
| 620 | Ecosystem management | 1 | 20 | 1121 | 1177 |
| 620 | Biodiversity conservation | 1 | 20 | 2045 | 2339 |
| 620 | Cardiovascular diseases | 4 | 20 | 1134 | 1841 |
| 620 | Educational Innovation | 2 | 20 | 103 | 169 |
| 620 | Communication in medicine | 1 | 20 | 881 | 959 |
| 620 | Nonprofit organizations | 1 | 20 | 617 | 721 |
| 626 | Electrical Engineering | 5 | 19 | 2421 | 3191 |
| 626 | Psychoneuroimmunology | 1 | 19 | 861 | 1127 |
| 626 | energy conservation | 4 | 19 | 1802 | 3185 |
| 626 | Functional foods | 1 | 19 | 699 | 890 |
| 626 | Neuroimmunology | 1 | 19 | 956 | 1227 |
| 626 | Radiation | 3 | 19 | 2040 | 2745 |
| 626 | Water quality | 1 | 19 | 528 | 627 |
| 626 | Electrochemical Analysis | 1 | 19 | 2142 | 2263 |
| 626 | Phytotherapy | 2 | 19 | 862 | 1443 |
| 626 | Water chemistry | 1 | 19 | 770 | 808 |
| 626 | population trends | 1 | 19 | 147 | 231 |
| 626 | population geography | 1 | 19 | 669 | 745 |
| 626 | Demographic analysis | 1 | 19 | 42 | 71 |
| 626 | Kidney diseases | 1 | 19 | 1157 | 1242 |
| 626 | Population Dynamics | 1 | 19 | 353 | 416 |
| 641 | Geotechnical Engineering | 1 | 18 | 766 | 758 |
| 641 | Soil Mechanics | 1 | 18 | 1452 | 1492 |
| 641 | Religion and Science | 2 | 18 | 161 | 131 |
| 641 | health and race | 1 | 18 | 358 | 463 |
| 641 | Popular Literature | 2 | 18 | 157 | 128 |
| 641 | ethnic groups | 1 | 18 | 591 | 688 |
| 641 | Jurisprudence | 3 | 18 | 884 | 1271 |
| 648 | Nuclear Medicine | 1 | 17 | 1132 | 1144 |
| 648 | Internet of Things | 1 | 17 | 1592 | 1822 |
| 648 | Contraception | 2 | 17 | 669 | 1071 |
| 648 | Molecular Imaging | 1 | 17 | 743 | 881 |
| 648 | Plant breeding | 1 | 17 | 1174 | 1311 |
| 648 | Developmental Disabilities | 3 | 17 | 914 | 1635 |
| 648 | cross-cultural comparison | 1 | 17 | 935 | 1006 |
| 648 | planning | 1 | 17 | 1337 | 1457 |
| 648 | Europe | 1 | 17 | 3765 | 3504 |
| 648 | eugenics | 1 | 17 | 882 | 996 |
| 648 | Economic planning | 1 | 17 | 947 | 1151 |
| 648 | Breeding | 1 | 17 | 1626 | 1794 |
| 660 | Audiology | 2 | 16 | 803 | 1052 |
| 660 | Environmental Geology | 2 | 16 | 1893 | 2579 |
| 660 | Neonatology | 1 | 16 | 939 | 1098 |
| 660 | Tissue Engineering | 1 | 16 | 607 | 729 |
| 660 | Algorithms | 2 | 16 | 918 | 1149 |
| 660 | Hemostasis | 1 | 16 | 927 | 1018 |
| 660 | Thrombosis | 1 | 16 | 1160 | 1340 |
| 660 | Food texture | 1 | 16 | 323 | 428 |
| 660 | Political Participation | 1 | 16 | 579 | 608 |
| 660 | election law | 1 | 16 | 434 | 444 |
| 660 | Health promotion | 1 | 16 | 1717 | 1726 |
| 660 | environmental exposure | 1 | 16 | 2674 | 3135 |
| 660 | Sales management | 1 | 16 | 413 | 605 |
| 660 | selling | 1 | 16 | 413 | 605 |
| 660 | Voting | 1 | 16 | 407 | 426 |
| 675 | soil management | 1 | 15 | 895 | 1168 |
| 675 | Methodology | 1 | 15 | 997 | 984 |
| 675 | Detectors | 2 | 15 | 1748 | 2387 |
| 675 | Endocrine system | 1 | 15 | 926 | 567 |
| 675 | tillage | 1 | 15 | 717 | 1021 |
| 680 | Zoology | 2 | 14 | 2609 | 3101 |
| 680 | Graph Theory | 1 | 14 | 1195 | 958 |
| 680 | Physical organic chemistry | 1 | 14 | 1908 | 2114 |
| 680 | Cultural diversity | 1 | 14 | 306 | 431 |
| 680 | Metabolic diseases | 1 | 14 | 2290 | 2741 |
| 680 | Solitons | 1 | 14 | 1861 | 2022 |
| 680 | Fractals | 1 | 14 | 1869 | 2024 |
| 680 | Chaos | 1 | 14 | 1861 | 2022 |
| 680 | Solutions | 1 | 14 | 700 | 736 |
| 680 | Statistical models | 1 | 14 | 204 | 242 |
| 680 | Archives | 1 | 14 | 174 | 113 |
| 680 | cultural pluralism | 1 | 14 | 758 | 839 |
| 680 | synthesis | 1 | 14 | 1650 | 1647 |
| 680 | Digestive system diseases | 1 | 14 | 1071 | 1241 |
| 694 | Civil Engineering | 1 | 13 | 2159 | 1988 |
| 694 | Emergency Medical Services | 1 | 13 | 1040 | 1194 |
| 694 | Occupational Health | 2 | 13 | 1232 | 1672 |
| 694 | Human Geography | 1 | 13 | 1667 | 1737 |
| 694 | Hypertension | 1 | 13 | 1565 | 1942 |
| 694 | Urban Geography | 1 | 13 | 417 | 542 |
| 694 | Industrial Safety | 2 | 13 | 1447 | 2008 |
| 694 | Psychopharmacology | 4 | 13 | 1067 | 2025 |
| 694 | industrial hygiene | 2 | 13 | 1239 | 1568 |
| 694 | Atherosclerosis | 1 | 13 | 270 | 411 |
| 694 | Political Parties | 1 | 13 | 364 | 447 |
| 694 | Public opinion | 1 | 13 | 683 | 848 |
| 694 | Marriage | 2 | 13 | 637 | 1042 |
| 694 | Coronary heart disease | 1 | 13 | 395 | 398 |
| 694 | Psychiatric hospitals | 2 | 13 | 261 | 407 |
| 694 | Autism | 2 | 13 | 737 | 1281 |
| 710 | Systems Engineering | 2 | 12 | 2508 | 3167 |
| 710 | Information Technology | 2 | 12 | 2891 | 3712 |
| 710 | Intelligent Transportation Systems | 1 | 12 | 1631 | 1942 |
| 710 | Socioeconomic Factors | 1 | 12 | 1293 | 1748 |
| 714 | Forensic Psychology | 1 | 11 | 648 | 723 |
| 714 | Adult Education | 1 | 11 | 1049 | 1103 |
| 714 | Biblical Studies | 2 | 11 | 185 | 97 |
| 714 | Neuroanatomy | 1 | 11 | 478 | 663 |
| 714 | libraries | 1 | 11 | 952 | 876 |
| 714 | Bible | 2 | 11 | 372 | 172 |
| 714 | residential treatment | 2 | 11 | 196 | 410 |
| 714 | telemarketing | 1 | 11 | 231 | 429 |
| 714 | Post-traumatic stress disorder | 1 | 11 | 1146 | 1441 |
| 723 | Educational Psychology | 1 | 10 | 2044 | 2383 |
| 723 | epidemiologic methods | 1 | 10 | 345 | 420 |
| 723 | radiative transfer | 2 | 10 | 731 | 1039 |
| 723 | rural health | 1 | 10 | 281 | 408 |
| 723 | Educational measurement | 1 | 10 | 325 | 432 |
| 723 | Telecommunication | 3 | 10 | 2428 | 3498 |
| 723 | Therapeutics | 2 | 10 | 1517 | 2425 |
| 723 | Imaging systems | 1 | 10 | 1408 | 1429 |
| 723 | cell physiology | 1 | 10 | 1694 | 2227 |
| 732 | Logistics | 1 | 9 | 1009 | 1358 |
| 732 | Inventory Control | 1 | 9 | 177 | 424 |
| 732 | Systems Analysis | 2 | 9 | 1418 | 2215 |
| 732 | Analytical Biochemistry | 2 | 9 | 1883 | 2814 |
| 732 | Health Education | 1 | 9 | 2612 | 2929 |
| 732 | Medical Ethics | 2 | 9 | 1282 | 1840 |
| 732 | bioclimatology | 1 | 9 | 1589 | 2048 |
| 732 | Quantum Gravity | 1 | 9 | 2276 | 2434 |
| 732 | Intelligent Control Systems | 1 | 9 | 1956 | 1948 |
| 732 | Protozoa | 1 | 9 | 694 | 921 |
| 732 | women | 1 | 9 | 1471 | 1516 |
| 732 | Fuzzy systems | 1 | 9 | 2535 | 2686 |
| 732 | Consciousness | 1 | 9 | 813 | 950 |
| 745 | Law | 1 | 8 | 1818 | 1555 |
| 745 | Criminology | 1 | 8 | 1342 | 1513 |
| 745 | Power Electronics | 1 | 8 | 1379 | 1683 |
| 745 | Criminal psychology | 1 | 8 | 1110 | 1295 |
| 745 | Telecommunications | 1 | 8 | 1411 | 1632 |
| 745 | Pediatric Nursing | 1 | 8 | 644 | 926 |
| 745 | Obstetric Nursing | 1 | 8 | 404 | 602 |
| 745 | Water Conservation | 1 | 8 | 170 | 307 |
| 745 | Waste management | 1 | 8 | 2119 | 2567 |
| 745 | police psychology | 1 | 8 | 223 | 304 |
| 745 | Water Purification | 1 | 8 | 1768 | 2193 |
| 745 | sustainability | 1 | 8 | 1445 | 1993 |
| 745 | Broadcasting | 1 | 8 | 360 | 529 |
| 745 | Ethnology | 1 | 8 | 2208 | 2320 |
| 745 | Learning strategies | 1 | 8 | 32 | 97 |
| 745 | brewing | 1 | 8 | 359 | 465 |
| 745 | water reuse | 1 | 8 | 678 | 1095 |
| 745 | vascular diseases | 2 | 8 | 706 | 1200 |
| 745 | anesthesia | 1 | 8 | 793 | 883 |
| 745 | software | 2 | 8 | 1242 | 2112 |
| 745 | crime | 1 | 8 | 1028 | 1144 |
| 766 | Geomorphology | 1 | 7 | 1858 | 2412 |
| 766 | Bioethics | 1 | 7 | 1403 | 1660 |
| 766 | Fire ecology | 1 | 7 | 133 | 304 |
| 766 | Neurotransmitters | 1 | 7 | 771 | 764 |
| 766 | locomotion | 2 | 7 | 748 | 1299 |
| 766 | posture | 2 | 7 | 748 | 1299 |
| 766 | Hearing Aids | 1 | 7 | 339 | 448 |
| 766 | Antibodies | 1 | 7 | 778 | 1060 |
| 766 | Antigens | 1 | 7 | 955 | 1264 |
| 766 | plant communities | 1 | 7 | 1437 | 1992 |
| 766 | India | 4 | 7 | 1268 | 2601 |
| 766 | gait | 2 | 7 | 748 | 1299 |
| 766 | walking | 2 | 7 | 748 | 1299 |
| 779 | Surgery | 1 | 6 | 1707 | 2029 |
| 779 | Pediatric Hematology | 1 | 6 | 532 | 664 |
| 779 | Quantitative Research | 1 | 6 | 374 | 589 |
| 779 | Organometallic chemistry | 1 | 6 | 2784 | 3275 |
| 779 | Molecular cloning | 2 | 6 | 1555 | 2495 |
| 779 | Bioinorganic chemistry | 1 | 6 | 1898 | 2409 |
| 779 | Quantum Optics | 2 | 6 | 1038 | 1523 |
| 779 | Genetic recombination | 2 | 6 | 1537 | 2467 |
| 779 | Synthetic biology | 1 | 6 | 505 | 770 |
| 779 | Ferroelectricity | 1 | 6 | 1467 | 1621 |
| 779 | psychophysics | 1 | 6 | 574 | 744 |
| 779 | curriculum evaluation | 1 | 6 | 704 | 1040 |
| 779 | peptides | 1 | 6 | 1301 | 1759 |
| 779 | Atomic spectroscopy | 2 | 6 | 1293 | 1902 |
| 779 | Recombinant DNA | 2 | 6 | 1602 | 2555 |
| 779 | Laser Spectroscopy | 2 | 6 | 993 | 1465 |
| 779 | bees | 1 | 6 | 679 | 937 |
| 796 | Genetic Counseling | 1 | 5 | 335 | 525 |
| 796 | Public Health Administration | 1 | 5 | 679 | 854 |
| 796 | General Surgery | 1 | 5 | 766 | 955 |
| 796 | Tourism | 1 | 5 | 2375 | 3129 |
| 796 | Enteral nutrition | 1 | 5 | 1086 | 1560 |
| 796 | Raman spectroscopy | 1 | 5 | 1299 | 1770 |
| 796 | Parenteral nutrition | 1 | 5 | 1230 | 1711 |
| 796 | Ceramic materials | 1 | 5 | 1932 | 2468 |
| 796 | Food habits | 1 | 5 | 116 | 198 |
| 796 | Luminescence | 1 | 5 | 1969 | 2473 |
| 796 | New Testament | 1 | 5 | 192 | 102 |
| 796 | bioluminescence | 1 | 5 | 718 | 1048 |
| 796 | Neurodevelopmental disorders | 1 | 5 | 127 | 189 |
| 796 | Decision making | 2 | 5 | 1693 | 2899 |
| 810 | Robotics | 1 | 4 | 2317 | 2840 |
| 810 | Historical Geography | 1 | 4 | 330 | 380 |
| 810 | Optical Communications | 1 | 4 | 1211 | 1553 |
| 810 | Palliative Care | 1 | 4 | 1217 | 1687 |
| 810 | Differential Equations | 2 | 4 | 1255 | 1798 |
| 810 | Fiber Optics | 1 | 4 | 1319 | 1743 |
| 810 | water resources | 1 | 4 | 355 | 451 |
| 810 | Adaptive control systems | 1 | 4 | 1019 | 1408 |
| 810 | Light | 2 | 4 | 1010 | 1820 |
| 810 | Microwaves | 1 | 4 | 1741 | 2034 |
| 810 | Developed countries | 1 | 4 | 454 | 694 |
| 810 | Developing countries | 1 | 4 | 3260 | 4080 |
| 810 | Stress | 1 | 4 | 561 | 970 |
| 823 | Game Theory | 1 | 3 | 901 | 1202 |
| 823 | Geriatric Nursing | 1 | 3 | 942 | 1368 |
| 823 | Psychiatric Nursing | 1 | 3 | 1065 | 1538 |
| 823 | Oral Medicine | 1 | 3 | 1132 | 1612 |
| 823 | nursing education | 1 | 3 | 315 | 459 |
| 823 | Computer-Aided Design | 1 | 3 | 1824 | 2412 |
| 823 | Mass Spectrometry | 1 | 3 | 1512 | 2059 |
| 823 | Microprocessors | 2 | 3 | 778 | 1461 |
| 823 | Multimedia Systems | 2 | 3 | 2102 | 3203 |
| 823 | Semigroups | 1 | 3 | 557 | 670 |
| 823 | visualization | 2 | 3 | 1579 | 2143 |
| 823 | pharmaceutical industry | 1 | 3 | 967 | 1501 |
| 835 | Social Choice Theory | 1 | 2 | 426 | 602 |
| 835 | Cybernetics | 1 | 2 | 2209 | 2977 |
| 835 | Ethics | 1 | 2 | 1525 | 2213 |
| 835 | Music Therapy | 1 | 2 | 420 | 745 |
| 835 | Art Therapy | 1 | 2 | 392 | 709 |
| 835 | Sports Medicine | 2 | 2 | 2501 | 3576 |
| 835 | Welfare Economics | 1 | 2 | 679 | 922 |
| 835 | Medical Law | 1 | 2 | 80 | 128 |
| 835 | Group decision making | 1 | 2 | 820 | 1234 |
| 835 | negotiation | 1 | 2 | 151 | 282 |
| 835 | nucleotides | 1 | 2 | 554 | 818 |
| 835 | conflict management | 1 | 2 | 446 | 732 |
| 835 | sports injuries | 1 | 2 | 917 | 1388 |
| 848 | Structural design | 1 | 1 | 1312 | 1852 |
| 848 | Engineering Geology | 1 | 1 | 1838 | 2495 |
| 848 | Animal Nutrition | 1 | 1 | 863 | 1351 |
| 848 | Animal breeding | 1 | 1 | 1107 | 1682 |
| 848 | Wildlife conservation | 1 | 1 | 1537 | 2221 |
| 848 | Crystallization | 1 | 1 | 792 | 1144 |
| 848 | Smart Materials | 1 | 1 | 1492 | 2145 |
| 848 | nuclear magnetic resonance | 1 | 1 | 1262 | 1732 |
| 848 | Herpetology | 1 | 1 | 629 | 974 |
| 848 | Animal genetics | 2 | 1 | 657 | 1334 |
| 848 | Magnetic Resonance Spectroscopy | 1 | 1 | 1456 | 2023 |
| 848 | X-ray crystallography | 1 | 1 | 743 | 1040 |
| 848 | Hearing | 1 | 1 | 944 | 1373 |
| 848 | heredity | 1 | 1 | 1004 | 1542 |
| 848 | Longevity | 1 | 1 | 344 | 711 |
| 848 | Amphibians | 1 | 1 | 490 | 805 |
| 848 | computer networks | 1 | 1 | 3049 | 3912 |
| 848 | Reptiles | 1 | 1 | 530 | 870 |
| 866 | Mining Engineering | 1 | 0 | 856 | 1238 |
| 866 | Archaeology | 1 | 0 | 1742 | 2349 |
| 866 | History | 1 | 0 | 1620 | 1668 |
| 866 | World History | 1 | 0 | 399 | 554 |
| 866 | Environmental Toxicology | 1 | 0 | 3162 | 4256 |
| 866 | Higher Education | 1 | 0 | 1101 | 1827 |
| 866 | Rural Development | 1 | 0 | 903 | 1482 |
| 866 | Theology | 1 | 0 | 1052 | 1191 |
| 866 | Education policy | 1 | 0 | 171 | 439 |
| 866 | Labor Unions | 1 | 0 | 536 | 907 |
| 866 | risk factors | 1 | 0 | 936 | 1395 |
| 866 | psychopathology | 1 | 0 | 465 | 741 |
| 866 | labor | 1 | 0 | 632 | 1029 |
| 866 | Vocational guidance | 1 | 0 | 1389 | 2078 |
| 866 | Labor history | 1 | 0 | 227 | 478 |
| 866 | Middle East | 1 | 0 | 1656 | 2358 |
| 866 | juvenile courts | 1 | 0 | 55 | 137 |
| 866 | High performance computing | 1 | 0 | 198 | 457 |
| 866 | Neutrons | 1 | 0 | 109 | 203 |
| 866 | insecticides | 2 | 0 | 66 | 69 |
| 866 | Intellectual disability | 1 | 0 | 1190 | 1883 |
| 866 | Labor Movement | 1 | 0 | 370 | 658 |
| 866 | Australia | 1 | 0 | 2744 | 4027 |