| 1 | Astrophysics | 85 | 9.1K | 996 | 750 |
| 2 | Spectrum analysis | 81 | 7.7K | 1050 | 658 |
| 3 | Physics | 66 | 4.9K | 3267 | 3012 |
| 4 | Astronomy | 39 | 4.9K | 1206 | 782 |
| 5 | Parasitology | 153 | 3.4K | 142 | 205 |
| 6 | Biology | 72 | 3.4K | 2980 | 3497 |
| 7 | Science | 50 | 3.3K | 3970 | 3779 |
| 8 | Natural history | 10 | 2.3K | 3097 | 2780 |
| 9 | Nuclear Physics | 39 | 1.6K | 1879 | 1461 |
| 10 | Psychology | 53 | 1.6K | 1289 | 1312 |
| 11 | Condensed Matter | 39 | 1.5K | 1435 | 1164 |
| 12 | Ecology | 53 | 1.5K | 1922 | 2550 |
| 13 | Colloids | 27 | 1.4K | 1539 | 1265 |
| 14 | United States | 107 | 1.4K | 795 | 1304 |
| 15 | Solid State Physics | 26 | 1.3K | 1852 | 1291 |
| 16 | Economics | 62 | 1.3K | 1129 | 1066 |
| 17 | Environmental Engineering | 25 | 1.1K | 1460 | 1324 |
| 18 | Pollution | 16 | 1.1K | 3152 | 2483 |
| 19 | Optics | 34 | 1.1K | 1936 | 1286 |
| 20 | Chemistry | 46 | 1.1K | 3912 | 4809 |
| 21 | Liquid chromatography | 107 | 1.1K | 3 | 6 |
| 22 | Quantum electronics | 26 | 1.0K | 178 | 45 |
| 22 | Optoelectronic devices | 26 | 1.0K | 114 | 25 |
| 22 | lasers | 26 | 1.0K | 519 | 237 |
| 25 | Earth Sciences | 4 | 960 | 3442 | 1118 |
| 26 | Statistical physics | 23 | 944 | 1820 | 1301 |
| 27 | Environmental Health | 14 | 916 | 3335 | 2482 |
| 28 | Surface Chemistry | 17 | 905 | 2058 | 1552 |
| 29 | Mathematics | 109 | 870 | 1344 | 1647 |
| 30 | Parasitic Diseases | 70 | 856 | 253 | 761 |
| 31 | Microbiology | 10 | 793 | 5063 | 3805 |
| 32 | Biotechnology | 79 | 777 | 1402 | 3336 |
| 33 | sanitation | 4 | 729 | 1673 | 994 |
| 34 | Memory | 12 | 706 | 1222 | 854 |
| 35 | Chromatographic analysis | 77 | 685 | 165 | 473 |
| 36 | Geology | 20 | 668 | 1527 | 1312 |
| 37 | Economic History | 29 | 666 | 1280 | 999 |
| 38 | Polymers | 22 | 636 | 2348 | 2139 |
| 39 | Parasites | 48 | 624 | 226 | 514 |
| 40 | Geriatrics | 13 | 610 | 1908 | 1315 |
| 41 | Structural Engineering | 14 | 605 | 853 | 529 |
| 42 | Political Science | 39 | 604 | 488 | 497 |
| 43 | Environment | 18 | 596 | 2693 | 3689 |
| 44 | Developing countries | 16 | 574 | 1059 | 837 |
| 45 | Medicine | 41 | 559 | 4457 | 7034 |
| 46 | Behavior | 26 | 529 | 1259 | 2007 |
| 47 | Economic Development | 14 | 527 | 796 | 833 |
| 48 | Social Psychology | 14 | 513 | 1070 | 1051 |
| 49 | Paleoceanography | 6 | 504 | 148 | 139 |
| 49 | Agriculture | 6 | 504 | 2044 | 999 |
| 51 | income | 1 | 487 | 415 | 37 |
| 51 | Input-output analysis | 1 | 487 | 577 | 68 |
| 51 | Wealth | 1 | 487 | 415 | 37 |
| 54 | Analytical Chemistry | 31 | 475 | 1866 | 2604 |
| 55 | Biomedical Engineering | 18 | 448 | 2629 | 2816 |
| 56 | Socialization | 10 | 441 | 230 | 247 |
| 56 | role | 10 | 441 | 181 | 186 |
| 58 | Neurology | 16 | 437 | 3378 | 3831 |
| 59 | Genetics | 15 | 423 | 2492 | 3231 |
| 59 | Biochemistry | 24 | 423 | 4958 | 6087 |
| 59 | Child psychology | 11 | 423 | 899 | 969 |
| 62 | polymerization | 12 | 414 | 2595 | 2163 |
| 63 | Electronics | 6 | 404 | 3200 | 1562 |
| 64 | Development | 9 | 403 | 453 | 465 |
| 65 | Botany | 13 | 400 | 2522 | 2594 |
| 66 | Agricultural Chemistry | 33 | 379 | 678 | 1380 |
| 67 | Engineering | 24 | 377 | 1787 | 1873 |
| 67 | Psycholinguistics | 3 | 377 | 1079 | 545 |
| 69 | Quantum Gravity | 24 | 374 | 1095 | 1307 |
| 70 | Microbial Ecology | 3 | 373 | 2801 | 1966 |
| 71 | Econometrics | 10 | 372 | 835 | 630 |
| 72 | Federal government | 17 | 371 | 12 | 11 |
| 73 | Animal Behavior | 8 | 364 | 1430 | 1428 |
| 74 | Research | 30 | 361 | 4292 | 6719 |
| 75 | Cognition | 16 | 359 | 825 | 1039 |
| 76 | environmental pollution | 12 | 347 | 2914 | 3378 |
| 77 | Ethnology | 13 | 343 | 735 | 481 |
| 78 | Composite Materials | 7 | 342 | 2131 | 1838 |
| 79 | Biogeochemistry | 2 | 339 | 1581 | 897 |
| 80 | Animal ecology | 5 | 336 | 1091 | 696 |
| 81 | Statistics | 6 | 329 | 2389 | 1370 |
| 82 | Ethology | 5 | 327 | 1437 | 1303 |
| 83 | older people | 9 | 324 | 1137 | 626 |
| 84 | Materials | 22 | 321 | 3152 | 4072 |
| 85 | Environmental Geology | 11 | 318 | 821 | 867 |
| 86 | Biodiversity | 1 | 317 | 4190 | 1545 |
| 87 | Biomechanics | 12 | 313 | 776 | 878 |
| 88 | Geochemistry | 14 | 298 | 1193 | 1491 |
| 89 | Physiology | 16 | 297 | 2536 | 3323 |
| 90 | Organometallic compounds | 10 | 295 | 748 | 663 |
| 91 | System analysis | 9 | 291 | 1675 | 1303 |
| 92 | Geotechnical Engineering | 11 | 289 | 222 | 233 |
| 93 | Psychophysiology | 13 | 287 | 1830 | 2361 |
| 94 | Zoology | 17 | 286 | 1378 | 1429 |
| 94 | Economic Assistance | 6 | 286 | 528 | 521 |
| 96 | Plant Ecology | 2 | 281 | 2399 | 1427 |
| 97 | Microeconomics | 2 | 279 | 491 | 194 |
| 98 | Welfare Economics | 2 | 278 | 612 | 262 |
| 99 | Development Economics | 1 | 276 | 991 | 228 |
| 100 | world | 5 | 265 | 632 | 663 |
| 101 | Sociology | 23 | 263 | 1126 | 1897 |
| 101 | human behavior | 6 | 263 | 2134 | 2341 |
| 103 | Aging | 8 | 260 | 2374 | 2085 |
| 104 | economic policy | 16 | 255 | 1206 | 1096 |
| 105 | Business | 10 | 248 | 1372 | 1580 |
| 106 | Nanotechnology | 10 | 239 | 3583 | 4197 |
| 107 | Electrical Engineering | 4 | 237 | 3673 | 1469 |
| 108 | Statistical Mechanics | 7 | 227 | 882 | 479 |
| 109 | Hydrology | 13 | 226 | 1452 | 1789 |
| 110 | Biophysics | 6 | 223 | 5545 | 4872 |
| 110 | Green Chemistry | 6 | 223 | 1442 | 1630 |
| 110 | Sustainable Engineering | 6 | 223 | 1313 | 1330 |
| 113 | Bioengineering | 12 | 221 | 2874 | 4237 |
| 113 | Aerosols | 8 | 221 | 402 | 368 |
| 115 | Fractals | 15 | 217 | 430 | 650 |
| 116 | Physical Chemistry | 9 | 215 | 1639 | 1803 |
| 116 | Soft Condensed Matter | 7 | 215 | 824 | 821 |
| 116 | biopolymers | 7 | 215 | 916 | 905 |
| 119 | Psychiatry | 14 | 212 | 2807 | 3906 |
| 119 | Demography | 7 | 212 | 481 | 515 |
| 121 | Engineering Geology | 6 | 211 | 1131 | 1045 |
| 121 | Child Development | 14 | 211 | 1090 | 1676 |
| 123 | Environmental Policy | 11 | 210 | 1983 | 3200 |
| 124 | Ergonomics | 8 | 209 | 742 | 589 |
| 125 | Solar System | 3 | 208 | 968 | 691 |
| 126 | Computer Graphics | 28 | 206 | 459 | 1077 |
| 126 | Geometry | 14 | 206 | 617 | 446 |
| 126 | Solitons | 12 | 206 | 442 | 606 |
| 126 | Chaos | 12 | 206 | 442 | 606 |
| 126 | health services | 8 | 206 | 738 | 683 |
| 131 | Genomics | 5 | 204 | 3404 | 3157 |
| 132 | Environmental Chemistry | 14 | 201 | 1046 | 2115 |
| 133 | Rheology | 10 | 200 | 303 | 368 |
| 134 | Social Sciences | 35 | 195 | 1015 | 1981 |
| 134 | Organic Chemistry | 12 | 195 | 2153 | 2591 |
| 134 | Environmental monitoring | 5 | 195 | 3808 | 3801 |
| 137 | Mechanical Engineering | 7 | 190 | 2046 | 1355 |
| 137 | Meteorology | 5 | 190 | 2317 | 2379 |
| 137 | Developmental Psychology | 11 | 190 | 587 | 940 |
| 140 | Gerontology | 7 | 188 | 1614 | 1354 |
| 141 | finance | 9 | 176 | 1549 | 1515 |
| 142 | Building Materials | 4 | 175 | 1651 | 1661 |
| 142 | aerosol | 5 | 175 | 390 | 280 |
| 144 | Immunology | 24 | 170 | 1926 | 4009 |
| 145 | Medical Physics | 2 | 169 | 2501 | 1444 |
| 146 | Memory disorders | 4 | 166 | 235 | 192 |
| 146 | Emotions | 2 | 166 | 801 | 609 |
| 148 | Cosmochemistry | 8 | 164 | 611 | 859 |
| 149 | Philosophy | 19 | 162 | 801 | 600 |
| 150 | human development | 3 | 159 | 872 | 710 |
| 151 | Cognitive Science | 2 | 156 | 2202 | 1424 |
| 152 | Mathematical Physics | 16 | 154 | 1655 | 1981 |
| 153 | Investments | 9 | 153 | 239 | 259 |
| 154 | Protozoa | 1 | 152 | 915 | 385 |
| 155 | Birds | 12 | 151 | 702 | 803 |
| 156 | Elderly | 5 | 150 | 1225 | 604 |
| 156 | Growth | 4 | 150 | 1303 | 1613 |
| 156 | Decision making | 9 | 150 | 914 | 1220 |
| 159 | Systems Engineering | 4 | 143 | 2225 | 1431 |
| 159 | Dynamics | 3 | 143 | 2155 | 1118 |
| 161 | Cytology | 3 | 142 | 5228 | 4996 |
| 162 | environmental protection | 10 | 140 | 2385 | 3737 |
| 163 | Tribology | 8 | 138 | 810 | 957 |
| 164 | Agricultural Ecology | 1 | 137 | 2280 | 1403 |
| 164 | Public Choice | 7 | 137 | 198 | 286 |
| 164 | Group decision making | 7 | 137 | 281 | 369 |
| 167 | Artificial Intelligence | 17 | 136 | 1882 | 3134 |
| 168 | Algebra | 8 | 133 | 1127 | 741 |
| 168 | Water | 4 | 133 | 2609 | 2986 |
| 168 | Obesity | 1 | 133 | 3932 | 2540 |
| 171 | Chromosome mapping | 2 | 132 | 2915 | 2345 |
| 171 | gene mapping | 2 | 132 | 3173 | 2671 |
| 173 | Oceanography | 4 | 129 | 1933 | 1801 |
| 173 | Geomorphology | 4 | 129 | 1401 | 1497 |
| 173 | Combinatorial analysis | 27 | 129 | 323 | 527 |
| 176 | Civil Engineering | 19 | 126 | 603 | 889 |
| 177 | Women's health | 7 | 125 | 989 | 1237 |
| 178 | Sports | 6 | 124 | 1782 | 1635 |
| 179 | Graph Theory | 11 | 122 | 384 | 372 |
| 180 | technical education | 1 | 118 | 1029 | 341 |
| 181 | Political Sociology | 3 | 115 | 470 | 368 |
| 182 | Mineralogy | 11 | 114 | 844 | 1268 |
| 183 | Human-Computer Interaction | 5 | 112 | 1340 | 1442 |
| 184 | Nationalism | 3 | 111 | 348 | 148 |
| 185 | Water pollution | 3 | 110 | 3203 | 3255 |
| 185 | Measurement | 1 | 110 | 2501 | 1153 |
| 187 | Ornithology | 8 | 109 | 713 | 799 |
| 188 | Educational Psychology | 2 | 107 | 1946 | 1344 |
| 189 | Conservation Biology | 3 | 106 | 1420 | 1450 |
| 190 | Geophysics | 6 | 105 | 3252 | 3756 |
| 190 | ethnicity | 2 | 105 | 1083 | 459 |
| 190 | synthesis | 7 | 105 | 758 | 729 |
| 193 | Wildlife conservation | 2 | 104 | 1725 | 1625 |
| 193 | Biocompatible Materials | 6 | 104 | 3353 | 4741 |
| 193 | Recycling | 2 | 104 | 880 | 1099 |
| 196 | Chemical Ecology | 10 | 103 | 270 | 691 |
| 196 | Molecular Biology | 6 | 103 | 7478 | 9456 |
| 196 | pheromones | 10 | 103 | 240 | 648 |
| 199 | Nanophotonics | 2 | 101 | 449 | 396 |
| 200 | homosexuality | 2 | 100 | 585 | 396 |
| 201 | World Bank | 2 | 99 | 73 | 65 |
| 202 | Lightweight concrete | 1 | 97 | 776 | 698 |
| 202 | concrete | 1 | 97 | 1767 | 1297 |
| 204 | Gender Studies | 1 | 96 | 1013 | 443 |
| 204 | Queer Studies | 1 | 96 | 626 | 303 |
| 204 | violence | 5 | 96 | 818 | 1037 |
| 207 | Social behavior | 3 | 95 | 1398 | 1388 |
| 208 | Discrete geometry | 7 | 94 | 145 | 170 |
| 208 | Algae | 3 | 94 | 871 | 888 |
| 208 | Seaweed | 3 | 94 | 681 | 747 |
| 211 | Technology | 7 | 93 | 3626 | 4435 |
| 212 | Education | 21 | 92 | 1717 | 3127 |
| 213 | biomedicine | 4 | 90 | 926 | 1089 |
| 214 | Mental Disorders | 2 | 87 | 4635 | 4094 |
| 214 | Politics | 16 | 87 | 210 | 438 |
| 214 | government | 16 | 87 | 252 | 578 |
| 217 | Public Administration | 4 | 86 | 1467 | 1174 |
| 217 | Asset Management | 1 | 86 | 179 | 22 |
| 219 | Regional Planning | 4 | 84 | 1603 | 1575 |
| 220 | poverty | 2 | 83 | 660 | 476 |
| 221 | Political Psychology | 1 | 82 | 627 | 456 |
| 221 | Comparative Physiology | 3 | 82 | 989 | 1022 |
| 221 | public works | 5 | 82 | 75 | 81 |
| 224 | sex crimes | 4 | 81 | 591 | 697 |
| 225 | Minerals | 1 | 80 | 1633 | 929 |
| 226 | Toxicology | 4 | 79 | 5300 | 6202 |
| 226 | Cell Biology | 5 | 79 | 4227 | 5791 |
| 226 | Food | 4 | 79 | 3414 | 4081 |
| 226 | Plants | 2 | 79 | 2959 | 2677 |
| 230 | Transportation Engineering | 2 | 78 | 503 | 389 |
| 230 | Clinical Psychology | 5 | 78 | 1428 | 2210 |
| 230 | Paleoclimatology | 4 | 78 | 1094 | 1398 |
| 230 | Paleoecology | 4 | 78 | 1049 | 1309 |
| 230 | Paleogeography | 4 | 78 | 934 | 1230 |
| 230 | management | 4 | 78 | 3539 | 3793 |
| 236 | Environmental Management | 3 | 77 | 3457 | 4231 |
| 236 | International Finance | 7 | 77 | 1177 | 1711 |
| 238 | Molecules | 2 | 76 | 2140 | 1513 |
| 239 | Knot Theory | 18 | 75 | 42 | 88 |
| 240 | Geography | 6 | 74 | 2004 | 2671 |
| 240 | Food habits | 2 | 74 | 53 | 13 |
| 242 | consumer behavior | 3 | 73 | 594 | 724 |
| 242 | Learning | 5 | 73 | 1239 | 1735 |
| 242 | Europe | 5 | 73 | 3324 | 3669 |
| 245 | Communication | 3 | 72 | 2482 | 2101 |
| 246 | Mental Health | 1 | 71 | 3487 | 2037 |
| 246 | Tropical Medicine | 1 | 71 | 3777 | 2329 |
| 248 | Pharmacology | 3 | 70 | 6677 | 7044 |
| 248 | Solar Energy | 8 | 70 | 1179 | 2437 |
| 248 | food contamination | 5 | 70 | 919 | 1224 |
| 248 | Pesticides | 5 | 70 | 565 | 789 |
| 252 | Respiratory Therapy | 6 | 69 | 19 | 55 |
| 252 | gases | 6 | 69 | 19 | 55 |
| 252 | Planets | 4 | 69 | 1635 | 2373 |
| 252 | biological monitoring | 1 | 69 | 1160 | 766 |
| 256 | Chemical Engineering | 6 | 68 | 4009 | 5516 |
| 256 | income distribution | 1 | 68 | 330 | 255 |
| 258 | coal | 2 | 67 | 2178 | 2407 |
| 259 | Macroeconomics | 7 | 65 | 215 | 398 |
| 260 | Medical Microbiology | 1 | 64 | 4532 | 3982 |
| 261 | China | 3 | 63 | 3582 | 3615 |
| 261 | organization | 2 | 63 | 1082 | 1103 |
| 261 | California | 5 | 63 | 393 | 506 |
| 264 | Paleontology | 2 | 62 | 1808 | 1485 |
| 265 | History | 9 | 61 | 766 | 423 |
| 265 | Portfolio Management | 3 | 61 | 378 | 300 |
| 267 | Industrial Safety | 2 | 60 | 1851 | 1509 |
| 267 | Nonlinear Dynamics | 3 | 60 | 2478 | 2564 |
| 269 | Industrial Engineering | 4 | 59 | 1984 | 2476 |
| 269 | Numerical Analysis | 4 | 59 | 2419 | 2390 |
| 271 | Jurisprudence | 6 | 58 | 769 | 1124 |
| 272 | Catalysis | 3 | 57 | 3823 | 4401 |
| 273 | Biomass Energy | 2 | 56 | 3418 | 3764 |
| 274 | international trade | 3 | 55 | 832 | 862 |
| 274 | foreign exchange | 4 | 55 | 319 | 586 |
| 274 | Groundwater | 2 | 55 | 1043 | 953 |
| 274 | commerce | 3 | 55 | 1897 | 1921 |
| 278 | Neuropsychology | 4 | 54 | 2501 | 3412 |
| 278 | Meteorites | 4 | 54 | 997 | 1586 |
| 280 | Social Networks | 2 | 53 | 461 | 488 |
| 281 | Transportation | 7 | 52 | 1231 | 2186 |
| 281 | Helminthology | 5 | 52 | 101 | 98 |
| 281 | Roads | 7 | 52 | 554 | 780 |
| 281 | Helminths | 5 | 52 | 101 | 98 |
| 281 | traffic safety | 2 | 52 | 476 | 427 |
| 281 | Genes | 2 | 52 | 1773 | 1858 |
| 287 | Molecular Microbiology | 2 | 51 | 1308 | 1865 |
| 287 | Community Psychiatry | 1 | 51 | 2238 | 1830 |
| 287 | Entomology | 6 | 51 | 2137 | 2739 |
| 290 | Metallurgy | 8 | 50 | 1936 | 3046 |
| 290 | Alkaloids | 1 | 50 | 70 | 37 |
| 290 | Molecular Spectroscopy | 2 | 50 | 2529 | 2536 |
| 290 | Adolescent | 3 | 50 | 2846 | 3103 |
| 290 | psychotherapy | 5 | 50 | 1260 | 1967 |
| 290 | prostaglandins | 1 | 50 | 980 | 807 |
| 296 | Engineering Mathematics | 3 | 49 | 3057 | 2638 |
| 296 | water supply | 1 | 49 | 1817 | 1606 |
| 296 | Post-traumatic stress disorder | 3 | 49 | 895 | 1324 |
| 299 | Law | 8 | 48 | 1095 | 999 |
| 299 | Game Theory | 1 | 48 | 1120 | 664 |
| 299 | Respiration | 3 | 48 | 1946 | 2621 |
| 302 | Data Mining | 1 | 47 | 3570 | 2873 |
| 302 | Online social networks | 1 | 47 | 762 | 456 |
| 302 | Climate change | 1 | 47 | 1970 | 2406 |
| 302 | Biodiversity conservation | 1 | 47 | 2983 | 3057 |
| 302 | Health | 2 | 47 | 3702 | 3778 |
| 302 | Eutrophication | 1 | 47 | 1815 | 2331 |
| 302 | machinery | 2 | 47 | 1140 | 1048 |
| 309 | Neurobiology | 3 | 46 | 2247 | 3211 |
| 309 | Herpetology | 4 | 46 | 329 | 373 |
| 309 | Amphibians | 4 | 46 | 281 | 267 |
| 309 | Reptiles | 4 | 46 | 314 | 339 |
| 313 | Materials Science | 5 | 45 | 4612 | 6131 |
| 313 | Physical Geography | 2 | 45 | 840 | 777 |
| 313 | Fluid Mechanics | 2 | 45 | 2388 | 2219 |
| 313 | Human Geography | 3 | 45 | 1272 | 1412 |
| 313 | Magnetohydrodynamics | 2 | 45 | 421 | 393 |
| 313 | Simulation Methods | 6 | 45 | 696 | 1406 |
| 313 | Cognitive neuroscience | 1 | 45 | 1756 | 1670 |
| 320 | Neurochemistry | 1 | 44 | 4146 | 3891 |
| 320 | Energy Policy | 1 | 44 | 4627 | 4539 |
| 320 | Fluid Dynamics | 5 | 44 | 1070 | 1647 |
| 320 | Immunochemistry | 7 | 44 | 774 | 1704 |
| 320 | Industrial Policy | 1 | 44 | 974 | 772 |
| 320 | energy resources | 1 | 44 | 2487 | 2827 |
| 320 | Southern states | 6 | 44 | 205 | 332 |
| 327 | Automation | 2 | 43 | 2528 | 2514 |
| 327 | Wireless Communication Systems | 3 | 43 | 2362 | 2332 |
| 327 | Regionalism | 2 | 43 | 318 | 306 |
| 327 | adolescence | 3 | 43 | 1082 | 1537 |
| 327 | Europa | 1 | 43 | 1034 | 784 |
| 327 | natural disasters | 1 | 43 | 2470 | 2191 |
| 333 | Marine Biology | 2 | 42 | 3537 | 3838 |
| 333 | Marriage | 3 | 42 | 591 | 824 |
| 333 | Family | 3 | 42 | 1168 | 1466 |
| 336 | Protein folding | 3 | 41 | 88 | 189 |
| 336 | prions | 3 | 41 | 66 | 144 |
| 338 | Sustainable Development | 1 | 40 | 4131 | 3522 |
| 338 | energy development | 1 | 40 | 1920 | 1684 |
| 338 | Perception | 4 | 40 | 2284 | 3426 |
| 338 | Textile industry | 1 | 40 | 1210 | 622 |
| 342 | Investment analysis | 1 | 39 | 1570 | 1193 |
| 342 | Matroids | 4 | 39 | 211 | 314 |
| 344 | International Relations | 10 | 38 | 700 | 1195 |
| 344 | Brain | 6 | 38 | 2423 | 4431 |
| 346 | Endocrinology | 3 | 37 | 3985 | 5426 |
| 346 | Developmental Neurobiology | 2 | 37 | 891 | 1029 |
| 346 | nucleic acids | 1 | 37 | 3212 | 3297 |
| 349 | Anatomy | 3 | 36 | 2525 | 3338 |
| 349 | Financial Engineering | 2 | 36 | 321 | 423 |
| 349 | Educational Anthropology | 1 | 36 | 243 | 150 |
| 349 | Library Science | 11 | 36 | 637 | 1225 |
| 353 | Soil Mechanics | 3 | 35 | 1289 | 1711 |
| 353 | Freshwater Ecology | 3 | 35 | 298 | 361 |
| 353 | Community Psychology | 1 | 35 | 1165 | 1063 |
| 353 | Mycology | 2 | 35 | 2398 | 2720 |
| 353 | North America | 1 | 35 | 1985 | 1519 |
| 353 | Continental shelf | 1 | 35 | 779 | 834 |
| 353 | Fungi | 2 | 35 | 1494 | 1896 |
| 353 | mathematical analysis | 7 | 35 | 2002 | 2539 |
| 353 | Mollusks | 1 | 35 | 548 | 279 |
| 362 | Pharmacogenetics | 2 | 34 | 1733 | 2387 |
| 362 | Combinatorial optimization | 2 | 34 | 728 | 565 |
| 362 | Diagnostic microbiology | 1 | 34 | 2599 | 3185 |
| 362 | biological factors | 2 | 34 | 2830 | 3329 |
| 362 | System design | 1 | 34 | 621 | 465 |
| 367 | Health Policy | 4 | 33 | 2686 | 4348 |
| 367 | Computational Biology | 2 | 33 | 4608 | 5088 |
| 367 | Latin America | 5 | 33 | 1281 | 1308 |
| 367 | Culture | 4 | 33 | 1065 | 1324 |
| 371 | vibration | 1 | 32 | 2291 | 1929 |
| 371 | Chromatography | 6 | 32 | 1400 | 2857 |
| 371 | sexual behavior | 2 | 32 | 1019 | 1313 |
| 374 | Morphology | 2 | 31 | 1260 | 1262 |
| 374 | Knowledge | 2 | 31 | 594 | 530 |
| 374 | Environmental pollutants | 3 | 31 | 2806 | 4312 |
| 377 | Public Health | 3 | 30 | 7720 | 10007 |
| 377 | Intercultural Communication | 2 | 30 | 534 | 687 |
| 377 | Petrology | 2 | 30 | 1198 | 1447 |
| 377 | Cross-Cultural Studies | 2 | 30 | 1009 | 1304 |
| 377 | actuators | 1 | 30 | 3718 | 3967 |
| 377 | transducers | 1 | 30 | 3718 | 3967 |
| 383 | Topology | 1 | 29 | 606 | 383 |
| 383 | taxation | 2 | 29 | 366 | 488 |
| 383 | Biomass | 1 | 29 | 1355 | 1705 |
| 383 | Membranes | 2 | 29 | 2492 | 3456 |
| 383 | language | 6 | 29 | 602 | 1376 |
| 388 | Humanities | 5 | 28 | 1659 | 2234 |
| 388 | Anthropology | 16 | 28 | 791 | 2417 |
| 388 | Nutrition | 1 | 28 | 7901 | 7788 |
| 388 | Neurophysiology | 7 | 28 | 2510 | 5243 |
| 388 | local government | 2 | 28 | 474 | 634 |
| 388 | Adhesion | 1 | 28 | 1402 | 1224 |
| 388 | pollutants | 2 | 28 | 2754 | 3854 |
| 388 | Diet | 1 | 28 | 4280 | 4526 |
| 388 | adhesives | 1 | 28 | 1485 | 1246 |
| 397 | Genetic engineering | 2 | 27 | 3297 | 4443 |
| 397 | health behavior | 1 | 27 | 2099 | 2162 |
| 397 | Research Design | 1 | 27 | 2751 | 2693 |
| 397 | Solid State Chemistry | 1 | 27 | 3900 | 3624 |
| 397 | auditory perception | 4 | 27 | 283 | 670 |
| 397 | Organometallic chemistry | 1 | 27 | 3301 | 2925 |
| 397 | Molecular cloning | 2 | 27 | 2280 | 2965 |
| 397 | Bioinorganic chemistry | 1 | 27 | 2514 | 2551 |
| 397 | Genetic recombination | 2 | 27 | 2243 | 2916 |
| 397 | Recombinant DNA | 2 | 27 | 2387 | 3077 |
| 407 | Ophthalmology | 4 | 26 | 1973 | 3400 |
| 407 | Developmental Biology | 2 | 26 | 3041 | 4197 |
| 407 | Land use | 2 | 26 | 1629 | 2326 |
| 407 | Socioeconomic Factors | 2 | 26 | 1207 | 1871 |
| 407 | forest policy | 1 | 26 | 808 | 816 |
| 407 | Vision | 4 | 26 | 689 | 1433 |
| 407 | Sedimentary rocks | 5 | 26 | 514 | 1135 |
| 407 | land | 2 | 26 | 91 | 77 |
| 407 | Consciousness | 1 | 26 | 977 | 885 |
| 407 | venom | 1 | 26 | 1861 | 1665 |
| 407 | Toxins | 1 | 26 | 2011 | 1806 |
| 418 | Religion | 20 | 25 | 347 | 903 |
| 418 | Social Issues | 7 | 25 | 132 | 592 |
| 418 | irrigation | 6 | 25 | 243 | 645 |
| 418 | drainage | 6 | 25 | 181 | 466 |
| 418 | Social problems | 7 | 25 | 399 | 1230 |
| 418 | mathematical concepts | 2 | 25 | 599 | 711 |
| 424 | Public Policy | 2 | 24 | 2760 | 3781 |
| 424 | Ethnic relations | 2 | 24 | 843 | 866 |
| 424 | Sensor Networks | 1 | 24 | 536 | 439 |
| 424 | International security | 2 | 24 | 313 | 581 |
| 424 | peace | 2 | 24 | 694 | 869 |
| 424 | Renaissance | 2 | 24 | 377 | 157 |
| 424 | conflict management | 2 | 24 | 390 | 612 |
| 431 | Pharmacy | 1 | 23 | 4217 | 4280 |
| 431 | Obstetric Nursing | 5 | 23 | 290 | 697 |
| 431 | Bioethics | 3 | 23 | 1089 | 1639 |
| 431 | Medical Ethics | 3 | 23 | 1461 | 2127 |
| 431 | Adolescent Psychology | 2 | 23 | 1269 | 1758 |
| 431 | Insects | 4 | 23 | 1581 | 2437 |
| 437 | Neurogenetics | 1 | 22 | 758 | 872 |
| 437 | Restoration Ecology | 2 | 22 | 675 | 1064 |
| 437 | Maternal health services | 1 | 22 | 1007 | 1116 |
| 437 | Child welfare | 1 | 22 | 2335 | 2264 |
| 437 | Organic Geochemistry | 1 | 22 | 748 | 1029 |
| 437 | Social interaction | 1 | 22 | 639 | 684 |
| 437 | Africa | 5 | 22 | 1526 | 2597 |
| 437 | Performance | 1 | 22 | 535 | 574 |
| 445 | Ecological Engineering | 1 | 21 | 1343 | 1817 |
| 445 | Ethics | 2 | 21 | 1492 | 1892 |
| 445 | Signal Processing | 2 | 21 | 2779 | 3346 |
| 445 | Symbolic interactionism | 1 | 21 | 231 | 245 |
| 445 | Business Ethics | 7 | 21 | 607 | 1989 |
| 445 | civilization | 10 | 21 | 809 | 883 |
| 445 | Scandinavia | 1 | 21 | 1336 | 1305 |
| 445 | disaster relief | 1 | 21 | 560 | 639 |
| 453 | Genetic Research | 1 | 20 | 461 | 535 |
| 453 | Social policy | 2 | 20 | 1502 | 1836 |
| 453 | men | 1 | 20 | 695 | 753 |
| 453 | Biometrics | 3 | 20 | 1358 | 2079 |
| 453 | nanoscience | 2 | 20 | 3937 | 5283 |
| 458 | Palynology | 2 | 19 | 418 | 538 |
| 458 | Forecasting | 3 | 19 | 620 | 1141 |
| 458 | Bifurcation Theory | 1 | 19 | 1257 | 1108 |
| 458 | Art and Religion | 1 | 19 | 84 | 28 |
| 458 | Optical materials | 2 | 19 | 3357 | 4599 |
| 458 | Eastern Europe | 3 | 19 | 1159 | 1357 |
| 464 | Diagnostic Imaging | 3 | 18 | 2684 | 4193 |
| 464 | Plant physiology | 1 | 18 | 3487 | 4101 |
| 464 | Public Finance | 1 | 18 | 402 | 331 |
| 464 | Visual Perception | 3 | 18 | 2363 | 3986 |
| 464 | Group Identity | 1 | 18 | 195 | 174 |
| 464 | Evolution | 1 | 18 | 3611 | 4132 |
| 464 | Attention | 3 | 18 | 2458 | 4183 |
| 471 | environmental justice | 1 | 17 | 109 | 84 |
| 471 | social justice | 1 | 17 | 775 | 584 |
| 471 | International Business | 1 | 17 | 470 | 480 |
| 471 | Nervous system | 2 | 17 | 3673 | 5420 |
| 471 | Written communication | 1 | 17 | 220 | 239 |
| 476 | Neonatal Nursing | 4 | 16 | 101 | 236 |
| 476 | Integrated Circuits | 1 | 16 | 1511 | 1075 |
| 476 | Calculus of Variations | 2 | 16 | 678 | 760 |
| 476 | families | 1 | 16 | 1684 | 1718 |
| 476 | Hospitals | 2 | 16 | 1169 | 1845 |
| 476 | Alloys | 1 | 16 | 645 | 469 |
| 476 | Asia | 3 | 16 | 3592 | 5290 |
| 483 | Industrial Design | 1 | 15 | 581 | 707 |
| 483 | Political Geography | 2 | 15 | 395 | 665 |
| 483 | Biochemical Genetics | 1 | 15 | 1084 | 919 |
| 483 | Health Education | 1 | 15 | 4105 | 4477 |
| 483 | Child | 2 | 15 | 3934 | 5167 |
| 483 | Ion Exchange | 1 | 15 | 291 | 324 |
| 483 | Labor Unions | 2 | 15 | 361 | 472 |
| 483 | Computational Complexity | 4 | 15 | 1049 | 1958 |
| 483 | Health promotion | 1 | 15 | 3237 | 3683 |
| 483 | personality | 2 | 15 | 1932 | 2996 |
| 483 | Solvent extraction | 1 | 15 | 291 | 324 |
| 483 | crime victims | 1 | 15 | 356 | 437 |
| 483 | economic development projects | 1 | 15 | 489 | 629 |
| 483 | Aggression | 1 | 15 | 960 | 1283 |
| 497 | Nursing | 2 | 14 | 2903 | 3835 |
| 497 | Biostatistics | 1 | 14 | 479 | 377 |
| 497 | Health Services Research | 1 | 14 | 3704 | 4264 |
| 497 | Vocational Education | 1 | 14 | 1078 | 1117 |
| 497 | Geosynthetics | 1 | 14 | 324 | 404 |
| 497 | Human Capital | 1 | 14 | 604 | 755 |
| 497 | Environmentalism | 2 | 14 | 209 | 478 |
| 497 | industrial relations | 3 | 14 | 967 | 1634 |
| 497 | Therapeutics | 1 | 14 | 3674 | 4565 |
| 497 | Genetic therapy | 1 | 14 | 2533 | 3229 |
| 507 | Systems Theory | 2 | 13 | 970 | 1302 |
| 507 | Pediatrics | 1 | 13 | 5114 | 5896 |
| 507 | Proteomics | 1 | 13 | 2341 | 3168 |
| 507 | Labor Economics | 1 | 13 | 992 | 1094 |
| 507 | Differential Equations | 1 | 13 | 1652 | 1536 |
| 507 | economic forecasting | 2 | 13 | 508 | 897 |
| 507 | Oxidative stress | 1 | 13 | 2308 | 3310 |
| 507 | Biological Systems | 2 | 13 | 1167 | 1997 |
| 507 | Transnational corporations | 1 | 13 | 756 | 1023 |
| 507 | Social Systems | 2 | 13 | 332 | 475 |
| 507 | motivation | 1 | 13 | 661 | 897 |
| 507 | Emotion | 1 | 13 | 431 | 641 |
| 507 | Cell survival | 1 | 13 | 559 | 920 |
| 507 | molecular chaperones | 1 | 13 | 630 | 934 |
| 521 | Health Services Administration | 1 | 12 | 2610 | 3133 |
| 521 | Experimental Psychology | 2 | 12 | 788 | 1159 |
| 521 | Plate Tectonics | 1 | 12 | 552 | 697 |
| 521 | Feminist theory | 4 | 12 | 147 | 432 |
| 521 | Body Image | 1 | 12 | 434 | 708 |
| 521 | economic conditions | 2 | 12 | 934 | 1218 |
| 521 | Diplomatic relations | 2 | 12 | 1068 | 988 |
| 521 | Landslides | 1 | 12 | 531 | 840 |
| 521 | Heterocyclic compounds | 2 | 12 | 1473 | 1938 |
| 521 | enzymes | 2 | 12 | 2289 | 3784 |
| 531 | Computer Science | 1 | 11 | 4291 | 4343 |
| 531 | Cybernetics | 2 | 11 | 1934 | 2975 |
| 531 | Aesthetics | 1 | 11 | 455 | 230 |
| 531 | Art Criticism | 1 | 11 | 226 | 140 |
| 531 | Combustion | 1 | 11 | 2201 | 2670 |
| 531 | Nonlinear Optics | 1 | 11 | 626 | 627 |
| 531 | Feminism | 2 | 11 | 822 | 1174 |
| 531 | probabilities | 5 | 11 | 1164 | 1998 |
| 531 | immigration | 2 | 11 | 293 | 631 |
| 531 | Autoimmune diseases | 1 | 11 | 1377 | 1953 |
| 531 | migration policy | 2 | 11 | 316 | 675 |
| 531 | Asylum seeker | 2 | 11 | 253 | 603 |
| 543 | Popular culture | 2 | 10 | 741 | 747 |
| 543 | Lattice Theory | 4 | 10 | 167 | 328 |
| 543 | Cognitive Therapy | 2 | 10 | 923 | 1700 |
| 543 | Globalization | 1 | 10 | 1244 | 1691 |
| 543 | animals | 1 | 10 | 2555 | 2930 |
| 543 | Host-parasite interactions | 1 | 10 | 2508 | 3591 |
| 543 | Japan | 2 | 10 | 3180 | 4344 |
| 543 | atmospheric models | 2 | 10 | 970 | 1689 |
| 543 | body temperature | 2 | 10 | 722 | 1547 |
| 543 | Virulence | 1 | 10 | 2272 | 3306 |
| 543 | Metals | 4 | 10 | 2417 | 4287 |
| 543 | Immunity | 1 | 10 | 3565 | 4774 |
| 555 | Systems Biology | 1 | 9 | 3266 | 4472 |
| 555 | Adult Education | 1 | 9 | 1205 | 1309 |
| 555 | Pharmaceutical Chemistry | 1 | 9 | 6598 | 7844 |
| 555 | Music | 2 | 9 | 1438 | 1859 |
| 555 | Operations Research | 1 | 9 | 3744 | 4146 |
| 555 | Continuing Education | 1 | 9 | 902 | 976 |
| 555 | Bioremediation | 1 | 9 | 1807 | 2539 |
| 555 | Biodegradation | 1 | 9 | 1561 | 2325 |
| 555 | Production Management | 1 | 9 | 1951 | 2716 |
| 555 | libraries | 5 | 9 | 661 | 1224 |
| 555 | cell physiology | 1 | 9 | 2856 | 3990 |
| 555 | carbonate rocks | 3 | 9 | 146 | 374 |
| 555 | Autism | 2 | 9 | 1034 | 2054 |
| 555 | eugenics | 2 | 9 | 1009 | 2006 |
| 569 | Climatology | 1 | 8 | 3199 | 4150 |
| 569 | Photonics | 1 | 8 | 2950 | 3755 |
| 569 | Control Theory | 3 | 8 | 1967 | 3183 |
| 569 | Natural resources | 2 | 8 | 1096 | 2115 |
| 569 | Magnetic Materials | 1 | 8 | 2396 | 2914 |
| 569 | Plant breeding | 1 | 8 | 1716 | 2330 |
| 569 | Communism | 1 | 8 | 369 | 410 |
| 569 | journals | 1 | 8 | 299 | 127 |
| 569 | Invertebrates | 1 | 8 | 1327 | 1857 |
| 569 | school sports | 1 | 8 | 239 | 381 |
| 569 | manuscripts | 1 | 8 | 95 | 37 |
| 569 | Breeding | 1 | 8 | 2282 | 3032 |
| 581 | Medical Technology | 2 | 7 | 2990 | 5390 |
| 581 | Theology | 5 | 7 | 735 | 811 |
| 581 | Cosmology | 1 | 7 | 2297 | 2337 |
| 581 | Pediatric Nursing | 1 | 7 | 1155 | 1509 |
| 581 | Geographic information systems | 1 | 7 | 2254 | 2902 |
| 581 | Geopolitics | 2 | 7 | 413 | 790 |
| 581 | Sovereignty | 1 | 7 | 283 | 451 |
| 581 | Dyslexia | 1 | 7 | 327 | 519 |
| 581 | Smart Materials | 1 | 7 | 1799 | 2374 |
| 581 | Intelligent Control Systems | 1 | 7 | 2268 | 2525 |
| 581 | Documentation | 2 | 7 | 539 | 909 |
| 592 | Arts | 1 | 6 | 1129 | 822 |
| 592 | Structuralism | 1 | 6 | 329 | 609 |
| 592 | Photography | 6 | 6 | 1616 | 2577 |
| 592 | Emergency Medicine | 1 | 6 | 3232 | 4063 |
| 592 | Sleep Disorders | 1 | 6 | 3312 | 3935 |
| 592 | visualization | 4 | 6 | 1828 | 3108 |
| 592 | Futures | 5 | 6 | 240 | 941 |
| 592 | Hedge funds | 5 | 6 | 18 | 218 |
| 592 | Middle East | 1 | 6 | 2052 | 2312 |
| 592 | Sleep | 1 | 6 | 3323 | 3950 |
| 602 | Logic | 3 | 5 | 524 | 942 |
| 602 | Cognitive Psychology | 1 | 5 | 841 | 1066 |
| 602 | Anthropological Linguistics | 1 | 5 | 646 | 597 |
| 602 | Ecophysiology | 1 | 5 | 587 | 1021 |
| 602 | Human Rights | 1 | 5 | 1253 | 1644 |
| 602 | Public Speaking | 2 | 5 | 208 | 280 |
| 602 | Technology Assessment | 1 | 5 | 845 | 1653 |
| 602 | Economic Thought | 1 | 5 | 593 | 945 |
| 602 | Nanostructured Materials | 2 | 5 | 4075 | 6437 |
| 602 | Risk assessment | 1 | 5 | 1431 | 2233 |
| 602 | civil rights | 1 | 5 | 854 | 1123 |
| 602 | Microprocessors | 1 | 5 | 1149 | 1628 |
| 602 | Drying | 1 | 5 | 797 | 1263 |
| 602 | Mechanics | 1 | 5 | 2537 | 3044 |
| 602 | Telecommunication | 1 | 5 | 4175 | 4768 |
| 602 | curriculum planning | 1 | 5 | 352 | 510 |
| 602 | radar | 1 | 5 | 484 | 758 |
| 602 | Sonar | 1 | 5 | 428 | 677 |
| 602 | Cost effectiveness | 1 | 5 | 189 | 371 |
| 602 | Radio | 1 | 5 | 1644 | 1891 |
| 602 | Hazardous waste | 1 | 5 | 1861 | 2978 |
| 602 | city planning | 1 | 5 | 3065 | 3997 |
| 602 | Speech | 2 | 5 | 1277 | 2430 |
| 602 | Navigation | 1 | 5 | 904 | 1175 |
| 626 | Information Theory | 1 | 4 | 2202 | 2813 |
| 626 | Gastronomy | 1 | 4 | 86 | 68 |
| 626 | Musical Theater | 5 | 4 | 21 | 40 |
| 626 | Nanoparticles | 1 | 4 | 3312 | 4658 |
| 626 | Crystallography | 3 | 4 | 2061 | 3278 |
| 626 | Teaching | 2 | 4 | 2598 | 4397 |
| 626 | Arthropods | 1 | 4 | 601 | 1030 |
| 626 | population policy | 1 | 4 | 342 | 636 |
| 626 | Population | 1 | 4 | 2266 | 3155 |
| 626 | Informatics | 1 | 4 | 1743 | 2582 |
| 626 | Information Science | 1 | 4 | 4777 | 6323 |
| 626 | African Americans | 1 | 4 | 376 | 549 |
| 626 | African American | 1 | 4 | 294 | 473 |
| 626 | econometric models | 2 | 4 | 873 | 1743 |
| 640 | Linguistics | 2 | 3 | 2185 | 3172 |
| 640 | Ceramics | 1 | 3 | 2726 | 3617 |
| 640 | Manufacturing Processes | 1 | 3 | 3915 | 5168 |
| 640 | Production Engineering | 1 | 3 | 3518 | 4648 |
| 640 | Operator theory | 2 | 3 | 600 | 1012 |
| 640 | Mass Media | 2 | 3 | 1355 | 1986 |
| 640 | Human Security | 1 | 3 | 41 | 126 |
| 640 | Logic Programming | 2 | 3 | 441 | 763 |
| 640 | Risk | 1 | 3 | 1230 | 2009 |
| 640 | ethnic groups | 1 | 3 | 702 | 1296 |
| 640 | Glass | 1 | 3 | 2063 | 2988 |
| 640 | Methodology | 1 | 3 | 1070 | 1616 |
| 640 | pottery | 1 | 3 | 1987 | 2891 |
| 640 | Methods | 1 | 3 | 275 | 459 |
| 640 | national security | 3 | 3 | 441 | 982 |
| 640 | strategy | 2 | 3 | 345 | 601 |
| 640 | race relations | 1 | 3 | 1080 | 1491 |
| 657 | Performing Arts | 1 | 2 | 478 | 378 |
| 657 | Social Choice Theory | 1 | 2 | 466 | 691 |
| 657 | Fiction | 1 | 2 | 336 | 285 |
| 657 | Journalism | 1 | 2 | 1036 | 1366 |
| 657 | Hydraulic Engineering | 1 | 2 | 1844 | 2635 |
| 657 | Probability | 1 | 2 | 1264 | 2077 |
| 657 | Stochastic Processes | 1 | 2 | 1798 | 2596 |
| 657 | Dance | 1 | 2 | 579 | 637 |
| 657 | Discrete Mathematics | 2 | 2 | 511 | 884 |
| 657 | housing policy | 1 | 2 | 269 | 506 |
| 657 | Sustainable agriculture | 1 | 2 | 1584 | 2647 |
| 657 | Dance therapy | 1 | 2 | 399 | 745 |
| 657 | Electrochemistry | 1 | 2 | 5741 | 7129 |
| 657 | Soil stabilization | 1 | 2 | 137 | 305 |
| 657 | Social Media | 1 | 2 | 448 | 667 |
| 657 | Art and Design | 1 | 2 | 76 | 179 |
| 657 | Digital humanities | 1 | 2 | 235 | 474 |
| 657 | Developmental Disabilities | 1 | 2 | 1939 | 3104 |
| 657 | Housing | 1 | 2 | 956 | 1595 |
| 657 | graph | 2 | 2 | 511 | 884 |
| 657 | Flood control | 1 | 2 | 665 | 1227 |
| 657 | Mortgages | 1 | 2 | 439 | 744 |
| 657 | labor | 1 | 2 | 799 | 1147 |
| 657 | design | 1 | 2 | 602 | 727 |
| 657 | press | 1 | 2 | 292 | 401 |
| 657 | Labor history | 1 | 2 | 219 | 384 |
| 657 | Islam | 1 | 2 | 1242 | 1498 |
| 657 | Communication in politics | 1 | 2 | 555 | 988 |
| 657 | sports administration | 1 | 2 | 623 | 1095 |
| 657 | Labor Movement | 1 | 2 | 440 | 633 |
| 657 | Creativity | 2 | 2 | 391 | 1223 |
| 657 | Spain | 1 | 2 | 1620 | 1855 |
| 657 | applications | 1 | 2 | 110 | 207 |
| 690 | Literature | 5 | 1 | 803 | 1324 |
| 690 | Information Systems | 1 | 1 | 3096 | 4936 |
| 690 | Human genetics | 1 | 1 | 4076 | 5866 |
| 690 | American Literature | 7 | 1 | 378 | 775 |
| 690 | Higher Education | 2 | 1 | 799 | 1935 |
| 690 | Nondestructive testing | 1 | 1 | 1370 | 2174 |
| 690 | Latin American Literature | 2 | 1 | 538 | 488 |
| 690 | Rural Development | 1 | 1 | 1261 | 1962 |
| 690 | Food Policy | 1 | 1 | 777 | 1463 |
| 690 | Quantum Chemistry | 1 | 1 | 1717 | 2438 |
| 690 | Social History | 2 | 1 | 759 | 1295 |
| 690 | community development | 1 | 1 | 1205 | 1988 |
| 690 | Sikhism | 1 | 1 | 52 | 89 |
| 690 | business cycles | 1 | 1 | 90 | 218 |
| 690 | agricultural policy | 1 | 1 | 570 | 1110 |
| 690 | Water quality management | 4 | 1 | 1890 | 5326 |
| 690 | water resources | 4 | 1 | 198 | 799 |
| 690 | France | 4 | 1 | 437 | 1142 |
| 690 | Bible | 1 | 1 | 566 | 504 |
| 690 | Reading | 1 | 1 | 1028 | 1600 |
| 690 | corrections | 1 | 1 | 370 | 591 |
| 690 | industrial waste | 1 | 1 | 1666 | 2816 |
| 690 | Sociobiology | 1 | 1 | 578 | 1062 |
| 690 | Social work | 12 | 1 | 742 | 4645 |
| 690 | punishment | 1 | 1 | 245 | 443 |
| 690 | Microscopy | 3 | 1 | 2148 | 4730 |
| 690 | social aspects | 1 | 1 | 176 | 379 |
| 690 | United Kingdom | 1 | 1 | 3402 | 4980 |
| 690 | Numeracy | 1 | 1 | 13 | 21 |
| 690 | Human biology | 1 | 1 | 1385 | 2341 |
| 690 | Cancer | 3 | 1 | 4609 | 8559 |
| 690 | Birth control | 1 | 1 | 1049 | 1987 |
| 722 | Religion and Literature | 4 | 0 | 22 | 98 |
| 722 | Historical Geography | 1 | 0 | 427 | 538 |
| 722 | Comparative Literature | 1 | 0 | 502 | 497 |
| 722 | Medical Oncology | 1 | 0 | 3890 | 5323 |
| 722 | Environmental Sociology | 1 | 0 | 100 | 304 |
| 722 | Environmental Economics | 2 | 0 | 634 | 1844 |
| 722 | Engineering Ethics | 1 | 0 | 473 | 1073 |
| 722 | Sports Medicine | 2 | 0 | 3778 | 6288 |
| 722 | Sedimentology | 1 | 0 | 1258 | 2108 |
| 722 | Number Theory | 1 | 0 | 1532 | 2187 |
| 722 | Geomagnetism | 1 | 0 | 1223 | 1857 |
| 722 | Political Ecology | 2 | 0 | 101 | 429 |
| 722 | Democracy | 1 | 0 | 735 | 1078 |
| 722 | Health literacy | 1 | 0 | 8 | 40 |
| 722 | Cold War | 1 | 0 | 330 | 422 |
| 722 | Fracture mechanics | 1 | 0 | 2439 | 3562 |
| 722 | Indoor air quality | 1 | 0 | 237 | 543 |
| 722 | Art | 2 | 0 | 660 | 1082 |
| 722 | Air Conditioning | 1 | 0 | 454 | 896 |
| 722 | Histocompatibility Testing | 1 | 0 | 1341 | 2028 |
| 722 | Radiobiology | 1 | 0 | 3408 | 4472 |
| 722 | Wildlife management | 1 | 0 | 1202 | 1994 |
| 722 | Postcolonialism | 1 | 0 | 270 | 550 |
| 722 | Professional ethics | 1 | 0 | 659 | 1454 |
| 722 | Formal Languages | 1 | 0 | 522 | 893 |
| 722 | genocide | 2 | 0 | 133 | 293 |
| 722 | Russia | 1 | 0 | 539 | 752 |
| 722 | East Asia | 1 | 0 | 1368 | 2355 |
| 722 | Vocational guidance | 1 | 0 | 1640 | 2746 |
| 722 | colonies | 1 | 0 | 80 | 183 |
| 722 | society | 1 | 0 | 212 | 535 |
| 722 | territorial expansion | 1 | 0 | 258 | 112 |
| 722 | phase diagrams | 1 | 0 | 332 | 613 |
| 722 | medical education | 1 | 0 | 4006 | 6106 |
| 722 | Ventilation | 1 | 0 | 1187 | 2196 |
| 722 | Nonprofit organizations | 1 | 0 | 676 | 1268 |
| 722 | Calvinism | 1 | 0 | 164 | 162 |
| 722 | Student Health Services | 1 | 0 | 571 | 1149 |
| 722 | Nomadism | 1 | 0 | 33 | 107 |
| 722 | Soviet Union | 2 | 0 | 1118 | 2537 |
| 722 | heating | 1 | 0 | 363 | 761 |
| 722 | Marine sediments | 1 | 0 | 76 | 138 |
| 722 | College | 4 | 0 | 72 | 245 |
| 722 | Italian Americans | 1 | 0 | 46 | 6 |
| 722 | church and state | 2 | 0 | 141 | 275 |
| 722 | Catholic Church | 1 | 0 | 673 | 673 |
| 722 | Pennsylvania | 1 | 0 | 113 | 30 |
| 722 | Jews | 2 | 0 | 393 | 726 |
| 722 | Holocaust | 2 | 0 | 135 | 267 |
| 722 | sports equipment | 1 | 0 | 126 | 331 |
