| 1 | Chemistry | 116 | 1.4K | 1942 | 3284 |
| 2 | Biochemistry | 72 | 1.2K | 2336 | 3217 |
| 3 | Physics | 79 | 1.2K | 2299 | 4258 |
| 4 | Polymers | 49 | 942 | 1333 | 1510 |
| 5 | Medicine | 39 | 906 | 3479 | 4388 |
| 6 | polymerization | 39 | 843 | 1252 | 1329 |
| 7 | Pollution | 19 | 824 | 2393 | 2413 |
| 8 | Crystallography | 50 | 753 | 270 | 275 |
| 9 | Cardiovascular diseases | 7 | 735 | 1051 | 469 |
| 10 | Fracture mechanics | 9 | 696 | 800 | 381 |
| 11 | risk factors | 4 | 671 | 610 | 204 |
| 12 | environmental pollution | 9 | 665 | 2732 | 2055 |
| 13 | Biophysics | 39 | 655 | 1826 | 2454 |
| 14 | Manufacturing Processes | 15 | 627 | 993 | 770 |
| 15 | Organic Chemistry | 30 | 621 | 1161 | 1310 |
| 16 | Biology | 28 | 620 | 3740 | 5471 |
| 17 | Nuclear Fusion | 10 | 582 | 299 | 162 |
| 18 | Information Science | 2 | 553 | 2994 | 901 |
| 19 | Science | 15 | 504 | 5654 | 6331 |
| 20 | Ecology | 14 | 487 | 3277 | 3585 |
| 21 | Molecular Biology | 42 | 446 | 2607 | 4693 |
| 22 | Membranes | 9 | 404 | 1045 | 1033 |
| 23 | Magnetic Resonance Spectroscopy | 20 | 398 | 421 | 450 |
| 23 | nuclear magnetic resonance spectroscopy | 20 | 398 | 189 | 232 |
| 23 | NMR | 20 | 398 | 73 | 68 |
| 23 | magnetic resonance | 20 | 398 | 74 | 77 |
| 27 | Analytical Chemistry | 10 | 396 | 2702 | 2325 |
| 28 | Child | 4 | 393 | 2077 | 968 |
| 28 | Adolescent | 4 | 393 | 1811 | 814 |
| 30 | environmental protection | 44 | 388 | 676 | 1849 |
| 31 | Research | 23 | 384 | 3819 | 5117 |
| 32 | Pharmaceutical Chemistry | 17 | 378 | 1809 | 2189 |
| 33 | Environmental monitoring | 9 | 376 | 2357 | 2274 |
| 34 | Pharmacology | 13 | 374 | 2898 | 2977 |
| 35 | Molecular structure | 22 | 371 | 814 | 1124 |
| 36 | peptides | 22 | 358 | 137 | 205 |
| 37 | Environmental Chemistry | 51 | 353 | 274 | 1344 |
| 37 | Condensed Matter | 29 | 353 | 1381 | 1703 |
| 39 | Materials | 34 | 352 | 2185 | 3198 |
| 40 | Statistical physics | 37 | 330 | 1211 | 1747 |
| 41 | Ecological Engineering | 38 | 312 | 18 | 327 |
| 42 | Botany | 21 | 309 | 1667 | 2314 |
| 43 | Biogeography | 4 | 284 | 825 | 773 |
| 44 | Psychology | 21 | 262 | 1872 | 2627 |
| 44 | amino acids | 8 | 262 | 247 | 282 |
| 46 | Paleontology | 17 | 246 | 537 | 638 |
| 47 | Microbiology | 9 | 241 | 4127 | 4724 |
| 48 | Mathematical Physics | 25 | 230 | 1099 | 1400 |
| 49 | Natural history | 3 | 228 | 3983 | 4562 |
| 50 | Social Psychology | 7 | 223 | 1348 | 1287 |
| 51 | Earthquake Engineering | 7 | 220 | 874 | 827 |
| 52 | Solid State Physics | 22 | 217 | 1728 | 2235 |
| 53 | Bioorganic chemistry | 9 | 211 | 1777 | 2009 |
| 53 | proteins | 10 | 211 | 1210 | 1402 |
| 55 | ecosystem | 2 | 205 | 1567 | 1064 |
| 56 | Biotechnology | 11 | 204 | 3621 | 4731 |
| 57 | Plant Ecology | 7 | 198 | 1180 | 1426 |
| 58 | Toxicology | 9 | 197 | 3024 | 3531 |
| 59 | Structural Engineering | 8 | 177 | 1053 | 1034 |
| 60 | Mathematics | 36 | 176 | 2204 | 3028 |
| 61 | concrete | 4 | 173 | 881 | 901 |
| 62 | Optical materials | 4 | 164 | 2248 | 2074 |
| 63 | Raman spectroscopy | 5 | 163 | 600 | 489 |
| 64 | Medical Laboratory Science | 6 | 162 | 1631 | 2001 |
| 65 | Bioinorganic chemistry | 14 | 161 | 634 | 1005 |
| 66 | Clinical Pharmacology | 4 | 159 | 1285 | 1040 |
| 66 | Clinical Chemistry | 3 | 159 | 2980 | 2412 |
| 68 | Metabolism | 3 | 157 | 2735 | 2550 |
| 69 | plant communities | 5 | 156 | 848 | 1026 |
| 70 | Nutrition | 4 | 155 | 3836 | 3551 |
| 71 | Peptide | 6 | 153 | 123 | 103 |
| 72 | human behavior | 4 | 152 | 2057 | 2319 |
| 73 | Environmental pollutants | 4 | 149 | 2041 | 1993 |
| 74 | Spectrum analysis | 15 | 148 | 2097 | 3022 |
| 75 | Industrial Microbiology | 4 | 147 | 1764 | 1854 |
| 75 | Cement | 3 | 147 | 619 | 650 |
| 77 | Physiology | 3 | 146 | 4079 | 3401 |
| 78 | Solid State Chemistry | 8 | 145 | 1652 | 1716 |
| 79 | Environmental Toxicology | 3 | 141 | 2471 | 2301 |
| 79 | Chemical structure | 18 | 141 | 60 | 180 |
| 81 | Solar Energy | 1 | 140 | 2562 | 1588 |
| 81 | solar power | 1 | 140 | 1332 | 855 |
| 81 | Nonlinear Dynamics | 13 | 140 | 1131 | 1484 |
| 81 | solar cells | 1 | 140 | 1456 | 925 |
| 85 | Catalysis | 12 | 136 | 2035 | 2859 |
| 86 | Environmental Management | 4 | 132 | 2515 | 2826 |
| 86 | Plants | 15 | 132 | 957 | 1808 |
| 88 | Ocean Engineering | 4 | 128 | 1412 | 1357 |
| 89 | Enteral nutrition | 1 | 121 | 1278 | 836 |
| 89 | Parenteral nutrition | 1 | 121 | 1514 | 975 |
| 91 | Geography | 9 | 120 | 1310 | 1753 |
| 92 | behavioral medicine | 2 | 119 | 1581 | 1351 |
| 93 | Environmental Health | 8 | 117 | 3432 | 4968 |
| 94 | Water pollution | 1 | 115 | 3836 | 2652 |
| 94 | Water | 1 | 115 | 3583 | 2607 |
| 94 | Crystal growth | 6 | 115 | 758 | 905 |
| 97 | environmental indicators | 3 | 114 | 1143 | 1253 |
| 98 | Public Health | 5 | 111 | 4735 | 5141 |
| 99 | Geology | 6 | 109 | 2264 | 2316 |
| 100 | Bryology | 3 | 106 | 216 | 111 |
| 100 | bryophytes | 3 | 106 | 107 | 54 |
| 100 | toxicity testing | 1 | 106 | 1359 | 681 |
| 103 | Molecules | 4 | 103 | 1301 | 1056 |
| 104 | Advertising | 1 | 102 | 617 | 392 |
| 104 | marketing | 1 | 102 | 2664 | 1610 |
| 106 | Calorimetry | 4 | 101 | 1034 | 876 |
| 106 | Thermal analysis | 4 | 101 | 1034 | 876 |
| 108 | Tribology | 3 | 100 | 1246 | 1021 |
| 108 | Physical Chemistry | 10 | 100 | 1305 | 2020 |
| 110 | Psychiatry | 6 | 99 | 3104 | 4029 |
| 110 | soil conservation | 5 | 99 | 580 | 777 |
| 110 | Europe | 15 | 99 | 1383 | 2453 |
| 113 | Neurotoxicology | 3 | 98 | 560 | 614 |
| 113 | Apoptosis | 3 | 98 | 235 | 263 |
| 113 | neurotoxins | 3 | 98 | 235 | 263 |
| 113 | Neurotoxic agents | 3 | 98 | 235 | 263 |
| 113 | Nerve regeneration | 3 | 98 | 235 | 263 |
| 118 | Molecular Pharmacology | 1 | 94 | 1286 | 970 |
| 119 | Chemical Engineering | 13 | 93 | 2474 | 4092 |
| 120 | Linguistics | 31 | 92 | 380 | 921 |
| 120 | Plastics | 3 | 92 | 1761 | 1433 |
| 122 | freshwater biology | 1 | 91 | 1525 | 889 |
| 123 | Magnetic Materials | 3 | 90 | 1587 | 1414 |
| 124 | Organometallic chemistry | 7 | 86 | 1313 | 1584 |
| 125 | Crystallization | 10 | 84 | 234 | 359 |
| 126 | Discourse Analysis | 3 | 83 | 351 | 321 |
| 126 | Astrophysics | 9 | 83 | 1896 | 2512 |
| 126 | Communication | 3 | 83 | 2120 | 1843 |
| 126 | Lipids | 2 | 83 | 1624 | 1589 |
| 126 | Cancer | 3 | 83 | 3593 | 3990 |
| 131 | Electrical Engineering | 7 | 82 | 2596 | 2480 |
| 131 | Control Theory | 3 | 82 | 1769 | 1446 |
| 133 | Optics | 9 | 80 | 3149 | 3406 |
| 133 | personality | 2 | 80 | 1617 | 1540 |
| 135 | Oncology | 5 | 79 | 1846 | 3119 |
| 136 | Human genetics | 1 | 78 | 3096 | 3412 |
| 137 | soil pollution | 3 | 77 | 580 | 555 |
| 138 | Cybernetics | 1 | 76 | 2460 | 1672 |
| 138 | Soil dynamics | 2 | 76 | 601 | 538 |
| 140 | Social Sciences | 27 | 71 | 1125 | 2787 |
| 140 | Diabetes | 3 | 71 | 2126 | 2642 |
| 142 | Gerontology | 4 | 67 | 1701 | 1770 |
| 142 | Liposomes | 4 | 67 | 441 | 651 |
| 144 | Evolution | 4 | 66 | 1606 | 2153 |
| 145 | Zoology | 8 | 65 | 1721 | 2351 |
| 146 | Engineering | 5 | 63 | 3784 | 4227 |
| 146 | Immunology | 3 | 63 | 3757 | 4386 |
| 146 | Microbial Ecology | 1 | 63 | 3305 | 3184 |
| 149 | Law | 149 | 62 | 53 | 710 |
| 149 | Epidemiology | 1 | 62 | 5781 | 4293 |
| 149 | Nuclear Physics | 11 | 62 | 2539 | 3407 |
| 149 | mass transfer | 5 | 62 | 1281 | 1822 |
| 153 | Geriatrics | 5 | 61 | 2323 | 3023 |
| 153 | Environmental Engineering | 4 | 61 | 3492 | 4418 |
| 153 | Building Materials | 2 | 61 | 1901 | 2091 |
| 153 | complementary therapies | 3 | 61 | 2159 | 2290 |
| 157 | Mental Disorders | 4 | 60 | 2632 | 3520 |
| 157 | RNA | 2 | 60 | 628 | 781 |
| 159 | Religion and Psychology | 4 | 57 | 373 | 458 |
| 159 | Mycology | 3 | 57 | 1654 | 1842 |
| 161 | Mental Health | 5 | 56 | 1243 | 1786 |
| 161 | Approximation Theory | 2 | 56 | 511 | 336 |
| 163 | Sociology | 10 | 55 | 1640 | 3179 |
| 164 | Environment | 4 | 54 | 4371 | 6933 |
| 164 | Metrology | 13 | 54 | 15 | 56 |
| 166 | Exercise | 6 | 53 | 945 | 1408 |
| 167 | Neurology | 5 | 52 | 4159 | 6084 |
| 167 | Philosophy | 50 | 52 | 355 | 887 |
| 167 | Organometallic compounds | 5 | 52 | 1002 | 1404 |
| 170 | Soil Science | 3 | 50 | 1871 | 2323 |
| 170 | Ferroelectricity | 16 | 50 | 405 | 935 |
| 172 | Sports Medicine | 6 | 49 | 1781 | 2456 |
| 173 | Artificial Intelligence | 6 | 46 | 2838 | 4119 |
| 173 | Numerical Analysis | 1 | 46 | 3233 | 2204 |
| 173 | Schizophrenia | 1 | 46 | 1503 | 1456 |
| 176 | Health Education | 2 | 45 | 2286 | 2247 |
| 177 | Physical organic chemistry | 2 | 44 | 1672 | 1669 |
| 178 | pollutants | 3 | 43 | 1967 | 2861 |
| 179 | Photochemistry | 4 | 42 | 1569 | 2325 |
| 179 | Photobiology | 4 | 42 | 1279 | 1951 |
| 181 | Computer Graphics | 3 | 41 | 1753 | 2066 |
| 182 | Medical Technology | 2 | 40 | 2374 | 2649 |
| 182 | Geriatric Psychiatry | 2 | 40 | 1344 | 1561 |
| 182 | Measurement | 2 | 40 | 1672 | 1727 |
| 182 | Mental Health Services | 2 | 40 | 1547 | 1693 |
| 182 | pigments | 4 | 40 | 679 | 1195 |
| 187 | Environmental Policy | 3 | 39 | 3231 | 4790 |
| 187 | Earth Sciences | 3 | 39 | 3202 | 3714 |
| 189 | Anatomy | 3 | 38 | 1922 | 2446 |
| 189 | Operations Research | 2 | 38 | 2457 | 2500 |
| 191 | Drug design | 2 | 37 | 2229 | 2571 |
| 192 | Obesity | 2 | 36 | 2364 | 3089 |
| 192 | Leukemia | 2 | 36 | 1203 | 1590 |
| 194 | Physical Geography | 2 | 35 | 732 | 765 |
| 194 | Diabetes mellitus | 1 | 35 | 3060 | 3186 |
| 194 | animals | 3 | 35 | 1348 | 1573 |
| 194 | cytokines | 4 | 35 | 1248 | 2284 |
| 194 | environmental exposure | 2 | 35 | 2332 | 2968 |
| 194 | computer networks | 1 | 35 | 3610 | 3048 |
| 200 | Automation | 3 | 33 | 2198 | 2897 |
| 201 | Obstetrics | 2 | 32 | 2700 | 3152 |
| 201 | rehabilitation | 3 | 32 | 2267 | 3279 |
| 201 | Aging | 2 | 32 | 3370 | 3806 |
| 201 | Behavior | 1 | 32 | 4567 | 4796 |
| 205 | Biomedical Engineering | 5 | 31 | 4257 | 6749 |
| 205 | Chemotherapy | 1 | 31 | 2192 | 2212 |
| 205 | Pharmacogenetics | 1 | 31 | 1662 | 1789 |
| 205 | Environmental Law | 1 | 31 | 1807 | 2172 |
| 205 | Digital Media | 1 | 31 | 380 | 313 |
| 205 | Radiation | 5 | 31 | 1732 | 2759 |
| 205 | Biomarkers | 1 | 31 | 898 | 757 |
| 205 | gene therapy | 1 | 31 | 1786 | 1980 |
| 205 | Infrared spectroscopy | 2 | 31 | 423 | 629 |
| 205 | drug therapy | 1 | 31 | 3505 | 3457 |
| 205 | Genetic therapy | 1 | 31 | 1861 | 2049 |
| 205 | biochemical markers | 1 | 31 | 1555 | 1418 |
| 205 | drugs | 1 | 31 | 3517 | 3319 |
| 205 | lasers | 1 | 31 | 3020 | 2575 |
| 205 | humor | 2 | 31 | 19 | 12 |
| 220 | Neurochemistry | 2 | 30 | 2591 | 3336 |
| 220 | Production Engineering | 2 | 30 | 2367 | 2478 |
| 220 | Plant Morphology | 1 | 30 | 1046 | 960 |
| 220 | radiative transfer | 4 | 30 | 489 | 726 |
| 224 | Electrophoresis | 2 | 29 | 2009 | 2532 |
| 224 | Biodiversity | 4 | 29 | 2058 | 3332 |
| 226 | Critical Discourse Analysis | 2 | 28 | 52 | 103 |
| 226 | Metallic Glasses | 2 | 28 | 570 | 761 |
| 226 | DNA repair | 1 | 28 | 537 | 590 |
| 229 | Pharmacy | 1 | 27 | 3316 | 3293 |
| 229 | Political Geography | 1 | 27 | 474 | 457 |
| 229 | Forest Ecology | 3 | 27 | 1037 | 1761 |
| 229 | Human-Computer Interaction | 1 | 27 | 2592 | 2375 |
| 229 | Developmental Biology | 1 | 27 | 2865 | 3200 |
| 229 | Geopolitics | 1 | 27 | 548 | 390 |
| 229 | Scandinavia | 2 | 27 | 891 | 1191 |
| 236 | Nanostructured Materials | 2 | 26 | 3346 | 4062 |
| 236 | Plant physiology | 3 | 26 | 2013 | 3070 |
| 236 | Catholic Church | 60 | 26 | 14 | 39 |
| 239 | Endocrinology | 4 | 25 | 2595 | 4598 |
| 239 | Economic History | 8 | 25 | 2347 | 3815 |
| 239 | Community Psychology | 2 | 25 | 652 | 909 |
| 239 | Quantum Chemistry | 2 | 25 | 1077 | 1069 |
| 239 | isomerism | 1 | 25 | 660 | 588 |
| 239 | Chirality | 1 | 25 | 660 | 588 |
| 245 | probabilities | 4 | 24 | 1129 | 1329 |
| 245 | Animal | 1 | 24 | 361 | 356 |
| 247 | Histology | 1 | 23 | 2794 | 3110 |
| 247 | Public Administration | 103 | 23 | 96 | 1694 |
| 247 | Microbial Biotechnology | 1 | 23 | 1742 | 1935 |
| 247 | Happiness | 1 | 23 | 820 | 944 |
| 247 | Family | 1 | 23 | 1519 | 1480 |
| 247 | families | 1 | 23 | 1393 | 1201 |
| 247 | Quality of life | 1 | 23 | 2480 | 2839 |
| 247 | Post-traumatic stress disorder | 1 | 23 | 1231 | 1362 |
| 247 | mathematical analysis | 4 | 23 | 2148 | 2433 |
| 247 | Entomology | 11 | 23 | 1310 | 2909 |
| 257 | Mechanical Engineering | 2 | 22 | 2921 | 2980 |
| 257 | Anthropology | 6 | 22 | 1098 | 1993 |
| 257 | Surface Chemistry | 2 | 22 | 4007 | 5000 |
| 257 | Theology | 61 | 22 | 67 | 381 |
| 257 | Heterocyclic chemistry | 5 | 22 | 358 | 746 |
| 257 | Land use | 3 | 22 | 1153 | 2080 |
| 257 | Electrochemistry | 3 | 22 | 3450 | 4330 |
| 257 | land degradation | 2 | 22 | 634 | 1107 |
| 257 | Africa | 2 | 22 | 2100 | 2179 |
| 257 | Insects | 9 | 22 | 864 | 2005 |
| 257 | degradation | 2 | 22 | 634 | 1107 |
| 268 | Information Systems | 1 | 21 | 2465 | 2503 |
| 268 | Sports | 2 | 21 | 2315 | 2510 |
| 268 | System analysis | 2 | 21 | 2962 | 3586 |
| 268 | Middle East | 1 | 21 | 1744 | 1306 |
| 272 | Computational Chemistry | 1 | 20 | 1113 | 1187 |
| 272 | Biochemical Engineering | 1 | 20 | 4423 | 5246 |
| 272 | synthesis | 2 | 20 | 1362 | 1504 |
| 272 | Soil ecology | 1 | 20 | 1228 | 1551 |
| 276 | Humanities | 17 | 19 | 550 | 2288 |
| 276 | Bioengineering | 3 | 19 | 4316 | 6713 |
| 276 | Computational Complexity | 6 | 19 | 725 | 1587 |
| 276 | violence | 1 | 19 | 1478 | 1681 |
| 276 | sex crimes | 1 | 19 | 1018 | 1120 |
| 281 | Political Science | 24 | 18 | 596 | 1965 |
| 281 | Marine Biology | 1 | 18 | 3518 | 3915 |
| 281 | Green Chemistry | 1 | 18 | 2385 | 2941 |
| 281 | Ethnobotany | 2 | 18 | 276 | 556 |
| 281 | Pragmatics | 1 | 18 | 168 | 78 |
| 281 | health behavior | 1 | 18 | 1607 | 1911 |
| 281 | Research Design | 1 | 18 | 1980 | 2329 |
| 281 | Medical Anthropology | 2 | 18 | 1521 | 2663 |
| 281 | Well-being | 1 | 18 | 312 | 343 |
| 281 | Health | 1 | 18 | 3647 | 3980 |
| 281 | Traditional medicine | 2 | 18 | 371 | 701 |
| 281 | ethnobiology | 2 | 18 | 324 | 641 |
| 281 | Phytotherapy | 2 | 18 | 1155 | 1939 |
| 281 | Ethnomedicine | 2 | 18 | 228 | 539 |
| 295 | Agricultural Chemistry | 1 | 17 | 3397 | 3759 |
| 295 | Health Policy | 1 | 17 | 3854 | 4095 |
| 295 | Educational Psychology | 21 | 17 | 467 | 2111 |
| 295 | Substance Abuse | 1 | 17 | 2166 | 2385 |
| 295 | Formal Languages | 4 | 17 | 182 | 327 |
| 295 | Molecular Spectroscopy | 3 | 17 | 1772 | 2891 |
| 295 | Acarology | 2 | 17 | 386 | 662 |
| 295 | Mites | 2 | 17 | 557 | 781 |
| 295 | Ticks | 2 | 17 | 417 | 679 |
| 295 | Acari | 2 | 17 | 371 | 656 |
| 305 | Statistics | 5 | 16 | 2102 | 3294 |
| 305 | Cytology | 2 | 16 | 4696 | 6509 |
| 305 | Structural dynamics | 1 | 16 | 1576 | 1895 |
| 305 | Applied Linguistics | 2 | 16 | 725 | 857 |
| 305 | Chromatography | 1 | 16 | 2595 | 2896 |
| 305 | air quality | 1 | 16 | 545 | 682 |
| 305 | Chromatographic analysis | 1 | 16 | 2947 | 3139 |
| 305 | Coronary heart disease | 2 | 16 | 334 | 390 |
| 313 | Education | 28 | 15 | 1225 | 4864 |
| 313 | Materials Science | 3 | 15 | 4495 | 6098 |
| 313 | Information Technology | 1 | 15 | 4090 | 3941 |
| 313 | Dermatology | 3 | 15 | 1705 | 2752 |
| 313 | Pharmacognosy | 1 | 15 | 2831 | 3469 |
| 313 | Conservation Biology | 2 | 15 | 1429 | 2215 |
| 313 | Educational Technology | 1 | 15 | 2580 | 2791 |
| 313 | Laser therapy | 3 | 15 | 467 | 844 |
| 313 | Multilingualism | 2 | 15 | 376 | 610 |
| 313 | Optoelectronic devices | 2 | 15 | 1221 | 1433 |
| 313 | Heterocyclic compounds | 4 | 15 | 896 | 1525 |
| 324 | Immunotherapy | 2 | 14 | 2345 | 3776 |
| 324 | Environmental Geology | 1 | 14 | 2460 | 2900 |
| 324 | Oxidative stress | 1 | 14 | 1943 | 2708 |
| 324 | Cellular senescence | 1 | 14 | 1422 | 2063 |
| 324 | Ornithology | 3 | 14 | 995 | 1470 |
| 324 | glycoproteins | 1 | 14 | 812 | 1109 |
| 324 | Glycoconjugates | 1 | 14 | 812 | 1109 |
| 324 | Oligosaccharides | 1 | 14 | 494 | 701 |
| 324 | glycolipids | 1 | 14 | 812 | 1109 |
| 333 | Logic | 12 | 13 | 179 | 628 |
| 333 | Special Education | 1 | 13 | 1257 | 1224 |
| 333 | Social Movements | 1 | 13 | 285 | 313 |
| 333 | Community Psychiatry | 1 | 13 | 1625 | 2086 |
| 333 | Collective behavior | 1 | 13 | 195 | 295 |
| 333 | Synaptic Transmission | 1 | 13 | 821 | 1123 |
| 333 | Interferons | 2 | 13 | 367 | 739 |
| 333 | Microstructure | 1 | 13 | 1517 | 1551 |
| 333 | Microscopy | 1 | 13 | 2606 | 2591 |
| 333 | Birds | 2 | 13 | 1385 | 1697 |
| 333 | Cytokine | 2 | 13 | 531 | 1098 |
| 344 | Clinical Psychology | 1 | 12 | 2047 | 2627 |
| 344 | Regional Planning | 3 | 12 | 1527 | 2514 |
| 344 | Surface-Active Agents | 1 | 12 | 1792 | 2486 |
| 344 | air quality management | 1 | 12 | 999 | 1493 |
| 344 | Altitude Sickness | 1 | 12 | 288 | 364 |
| 344 | Enzyme inhibitors | 1 | 12 | 774 | 1096 |
| 344 | Technology | 2 | 12 | 4989 | 6627 |
| 344 | Surface properties | 1 | 12 | 1867 | 2578 |
| 344 | Colloids | 1 | 12 | 4638 | 5633 |
| 344 | Altitude | 1 | 12 | 288 | 364 |
| 354 | Popular culture | 4 | 11 | 415 | 614 |
| 354 | Immunopharmacology | 1 | 11 | 1777 | 2378 |
| 354 | Mass Media | 4 | 11 | 842 | 1180 |
| 354 | Biodiversity conservation | 2 | 11 | 1987 | 3232 |
| 354 | Machining | 1 | 11 | 306 | 358 |
| 354 | Inflammation | 1 | 11 | 2033 | 2786 |
| 354 | cell adhesion molecules | 1 | 11 | 1002 | 1486 |
| 354 | Antibodies | 1 | 11 | 1114 | 1440 |
| 354 | Antigens | 1 | 11 | 1406 | 1792 |
| 354 | cell interaction | 1 | 11 | 1929 | 2573 |
| 354 | Allergy | 1 | 11 | 1749 | 2345 |
| 354 | Culture | 4 | 11 | 956 | 1711 |
| 354 | Trace elements | 1 | 11 | 566 | 921 |
| 354 | Cell communication | 1 | 11 | 1436 | 2015 |
| 368 | Dynamics | 2 | 10 | 2133 | 2790 |
| 368 | Religion | 3 | 10 | 957 | 1086 |
| 368 | Electrochemical Analysis | 1 | 10 | 2221 | 2698 |
| 368 | Solitons | 2 | 10 | 1360 | 2096 |
| 368 | Fractals | 2 | 10 | 1546 | 2265 |
| 368 | Knowledge | 1 | 10 | 666 | 663 |
| 368 | Chaos | 2 | 10 | 1360 | 2096 |
| 368 | Eastern Europe | 14 | 10 | 292 | 1547 |
| 368 | European Union | 4 | 10 | 139 | 388 |
| 368 | coal | 1 | 10 | 2399 | 3171 |
| 368 | extraterrestrial environment | 1 | 10 | 1063 | 1284 |
| 368 | Quantum theory | 2 | 10 | 1078 | 1530 |
| 368 | Radiation effects | 1 | 10 | 1087 | 1560 |
| 381 | History | 17 | 9 | 457 | 911 |
| 381 | Morphology | 1 | 9 | 1358 | 1483 |
| 381 | Brain | 1 | 9 | 3597 | 4547 |
| 381 | United States | 3 | 9 | 5578 | 9023 |
| 381 | cultural pluralism | 2 | 9 | 497 | 868 |
| 381 | software | 1 | 9 | 1763 | 2442 |
| 381 | hygiene | 3 | 9 | 534 | 1377 |
| 388 | Oceanography | 1 | 8 | 2548 | 3196 |
| 388 | Lexicography | 5 | 8 | 23 | 102 |
| 388 | Cell Biology | 1 | 8 | 5441 | 6888 |
| 388 | Behavioral research | 2 | 8 | 646 | 1384 |
| 388 | Mental illness | 2 | 8 | 2332 | 4055 |
| 393 | Nanotechnology | 2 | 7 | 5182 | 7342 |
| 393 | Cultural Studies | 2 | 7 | 193 | 488 |
| 393 | Quantum Computing | 1 | 7 | 328 | 461 |
| 393 | nuclear magnetic resonance | 1 | 7 | 1524 | 1827 |
| 393 | Religion and Culture | 2 | 7 | 416 | 698 |
| 393 | Entropy | 2 | 7 | 1497 | 2344 |
| 393 | Porous materials | 1 | 7 | 1296 | 1681 |
| 393 | Solutions | 1 | 7 | 692 | 883 |
| 393 | Student Health Services | 1 | 7 | 468 | 698 |
| 393 | Population | 1 | 7 | 1722 | 2255 |
| 393 | biological evolution | 1 | 7 | 3031 | 4110 |
| 393 | Human biology | 1 | 7 | 1111 | 1512 |
| 393 | Vaccines | 2 | 7 | 2335 | 4039 |
| 406 | Astronomy | 2 | 6 | 2813 | 4048 |
| 406 | Planetary Science | 1 | 6 | 877 | 1175 |
| 406 | Journalism | 1 | 6 | 898 | 980 |
| 406 | Statistical Mechanics | 3 | 6 | 1154 | 1906 |
| 406 | Nutrition physiology | 1 | 6 | 1319 | 1905 |
| 406 | Combustion | 1 | 6 | 1844 | 2387 |
| 406 | Random matrices | 1 | 6 | 96 | 112 |
| 406 | Ion Exchange | 1 | 6 | 247 | 350 |
| 406 | Lattice Theory | 5 | 6 | 115 | 352 |
| 406 | dietary supplements | 1 | 6 | 1481 | 2224 |
| 406 | Political Participation | 1 | 6 | 555 | 746 |
| 406 | Canon Law | 12 | 6 | 7 | 6 |
| 406 | Harmonic Analysis | 1 | 6 | 267 | 424 |
| 406 | Solvent extraction | 1 | 6 | 247 | 350 |
| 406 | medical education | 2 | 6 | 2146 | 3652 |
| 406 | Australia | 1 | 6 | 3173 | 4036 |
| 406 | Menopause | 1 | 6 | 572 | 866 |
| 406 | Meteorites | 1 | 6 | 1228 | 1776 |
| 424 | Histochemistry | 1 | 5 | 1758 | 2490 |
| 424 | Signal Processing | 1 | 5 | 3531 | 4534 |
| 424 | Humanism | 7 | 5 | 12 | 62 |
| 424 | Chemical kinetics | 1 | 5 | 1298 | 1608 |
| 424 | histological techniques | 1 | 5 | 1095 | 1744 |
| 424 | older people | 1 | 5 | 2589 | 2966 |
| 424 | Chemical industry | 2 | 5 | 1697 | 2739 |
| 431 | Orthopedics | 1 | 4 | 2430 | 3223 |
| 431 | Urban Policy | 1 | 4 | 1293 | 2019 |
| 431 | Phytochemistry | 1 | 4 | 653 | 1144 |
| 431 | Algebra | 2 | 4 | 1708 | 2064 |
| 431 | Regional Economics | 1 | 4 | 791 | 1196 |
| 431 | Orthopedic Surgery | 1 | 4 | 1399 | 1986 |
| 431 | Biological Systems | 1 | 4 | 1457 | 2080 |
| 431 | energy conservation | 1 | 4 | 3137 | 4421 |
| 431 | Phytoremediation | 1 | 4 | 653 | 1144 |
| 431 | Mutagenesis | 1 | 4 | 935 | 1536 |
| 431 | environmental remediation | 1 | 4 | 784 | 1322 |
| 431 | Bioreactors | 1 | 4 | 653 | 1144 |
| 431 | teratogenic agents | 1 | 4 | 495 | 915 |
| 431 | polar regions | 1 | 4 | 1120 | 1597 |
| 431 | Ethnology | 3 | 4 | 1504 | 2829 |
| 431 | carcinogens | 1 | 4 | 1675 | 2532 |
| 431 | Diplomatic relations | 7 | 4 | 412 | 1152 |
| 431 | biomedicine | 1 | 4 | 1750 | 2681 |
| 449 | Genetics | 1 | 3 | 5503 | 7275 |
| 449 | Occupational Therapy | 1 | 3 | 1760 | 2338 |
| 449 | Economics | 11 | 3 | 2401 | 6213 |
| 449 | Ethics | 2 | 3 | 1183 | 2429 |
| 449 | Occupational Health | 1 | 3 | 1923 | 2724 |
| 449 | Photography | 7 | 3 | 1785 | 3246 |
| 449 | Engineering Mathematics | 5 | 3 | 2086 | 4390 |
| 449 | Critical Care | 2 | 3 | 1851 | 3457 |
| 449 | Critical Care Medicine | 2 | 3 | 1660 | 3056 |
| 449 | Semantics | 1 | 3 | 464 | 670 |
| 449 | Industrial Safety | 1 | 3 | 2007 | 2882 |
| 449 | History of Medicine | 2 | 3 | 608 | 789 |
| 449 | industrial hygiene | 1 | 3 | 2025 | 2774 |
| 449 | Cognitive Grammar | 1 | 3 | 161 | 227 |
| 449 | Plant breeding | 1 | 3 | 1421 | 2110 |
| 449 | philology | 5 | 3 | 577 | 711 |
| 449 | International Finance | 1 | 3 | 2222 | 2947 |
| 449 | Cardiopulmonary Resuscitation | 1 | 3 | 288 | 459 |
| 449 | international trade | 1 | 3 | 1232 | 1740 |
| 449 | Military readiness | 5 | 3 | 32 | 215 |
| 449 | cardiac arrest | 1 | 3 | 288 | 459 |
| 449 | Communist countries | 1 | 3 | 518 | 726 |
| 449 | Fertilizers | 1 | 3 | 633 | 1022 |
| 449 | biological invasions | 1 | 3 | 1033 | 1638 |
| 449 | eugenics | 1 | 3 | 1028 | 1717 |
| 449 | Breeding | 1 | 3 | 1852 | 2672 |
| 475 | Literature | 8 | 2 | 533 | 962 |
| 475 | Computer Science | 3 | 2 | 2276 | 4643 |
| 475 | Criminology | 1 | 2 | 1345 | 1873 |
| 475 | Paleoecology | 1 | 2 | 1437 | 2075 |
| 475 | Electronics | 1 | 2 | 5178 | 6454 |
| 475 | Municipal Law | 2 | 2 | 90 | 111 |
| 475 | Health Services Research | 1 | 2 | 2909 | 4588 |
| 475 | Crime prevention | 1 | 2 | 545 | 829 |
| 475 | Comparative Literature | 2 | 2 | 289 | 223 |
| 475 | Environmental Archaeology | 1 | 2 | 171 | 324 |
| 475 | Number Theory | 1 | 2 | 1311 | 1610 |
| 475 | Computational Linguistics | 2 | 2 | 753 | 1620 |
| 475 | Lymphoma | 1 | 2 | 683 | 1082 |
| 475 | Biomechanics | 1 | 2 | 2403 | 3365 |
| 475 | Multiple Myeloma | 1 | 2 | 674 | 1061 |
| 475 | Language and Logic | 5 | 2 | 41 | 297 |
| 475 | Gene expression regulation | 1 | 2 | 1657 | 2571 |
| 475 | Plant diversity | 1 | 2 | 26 | 41 |
| 475 | Ultrasonics | 1 | 2 | 1937 | 2878 |
| 475 | Sonochemistry | 1 | 2 | 1051 | 1760 |
| 475 | Logic Programming | 2 | 2 | 392 | 698 |
| 475 | Genetic regulation | 1 | 2 | 1840 | 2767 |
| 475 | global environmental change | 1 | 2 | 1382 | 2350 |
| 475 | Health insurance | 1 | 2 | 802 | 1469 |
| 475 | Hormones | 1 | 2 | 2006 | 3013 |
| 475 | protein | 1 | 2 | 1947 | 2816 |
| 475 | Paleopathology | 1 | 2 | 529 | 806 |
| 475 | Criminal investigation | 1 | 2 | 359 | 629 |
| 475 | environmental issues | 1 | 2 | 817 | 1538 |
| 475 | vitamins | 1 | 2 | 317 | 701 |
| 505 | Radiology | 1 | 1 | 2343 | 3453 |
| 505 | Nursing | 2 | 1 | 2221 | 4306 |
| 505 | Kinesiology | 1 | 1 | 357 | 662 |
| 505 | Hematology | 1 | 1 | 3844 | 4985 |
| 505 | Economic Geography | 1 | 1 | 667 | 1056 |
| 505 | Data Mining | 1 | 1 | 2826 | 4518 |
| 505 | Religious Education | 2 | 1 | 171 | 445 |
| 505 | Geometry | 1 | 1 | 1776 | 2152 |
| 505 | Public Health Administration | 1 | 1 | 685 | 1060 |
| 505 | Human Geography | 1 | 1 | 1715 | 2604 |
| 505 | Nanoelectronics | 1 | 1 | 1374 | 1974 |
| 505 | Microelectronics | 1 | 1 | 2590 | 3558 |
| 505 | Psychopharmacology | 1 | 1 | 2238 | 3342 |
| 505 | Paleobiology | 1 | 1 | 643 | 996 |
| 505 | cosmic rays | 1 | 1 | 812 | 1326 |
| 505 | Material Culture | 1 | 1 | 262 | 481 |
| 505 | Wildlife conservation | 1 | 1 | 1863 | 2814 |
| 505 | Animal ecology | 1 | 1 | 1787 | 2650 |
| 505 | Wildlife management | 1 | 1 | 1008 | 1581 |
| 505 | blood transfusion | 1 | 1 | 1159 | 1816 |
| 505 | civilization | 5 | 1 | 1042 | 2028 |
| 505 | Chemical analysis | 1 | 1 | 1855 | 2812 |
| 505 | data collection | 1 | 1 | 1901 | 3268 |
| 505 | Diet | 1 | 1 | 3291 | 5085 |
| 505 | Asia | 1 | 1 | 4573 | 6184 |
| 505 | Bible | 1 | 1 | 522 | 442 |
| 505 | Croatia | 1 | 1 | 253 | 392 |
| 505 | psychotherapy | 1 | 1 | 2010 | 2978 |
| 505 | Plant diseases | 2 | 1 | 2205 | 3731 |
| 505 | health services | 1 | 1 | 1880 | 3136 |
| 505 | values | 2 | 1 | 317 | 687 |
| 505 | Detectors | 1 | 1 | 2628 | 3797 |
| 505 | national security | 1 | 1 | 695 | 975 |
| 505 | Semiconductor industry | 1 | 1 | 1095 | 1655 |
| 505 | Military sociology | 1 | 1 | 2 | 4 |
| 505 | health planning | 1 | 1 | 3358 | 5075 |
| 505 | Fisheries | 1 | 1 | 2478 | 3506 |
| 542 | Arts | 1 | 0 | 976 | 1383 |
| 542 | World History | 7 | 0 | 52 | 546 |
| 542 | Criminal Law | 1 | 0 | 467 | 745 |
| 542 | Civil Law | 1 | 0 | 41 | 63 |
| 542 | International Relations | 6 | 0 | 843 | 2527 |
| 542 | American Literature | 1 | 0 | 1006 | 908 |
| 542 | Logistics | 1 | 0 | 936 | 1566 |
| 542 | Administrative Law | 4 | 0 | 60 | 188 |
| 542 | Cultural History | 1 | 0 | 17 | 15 |
| 542 | Systems Analysis | 1 | 0 | 1843 | 3007 |
| 542 | Theater | 6 | 0 | 163 | 555 |
| 542 | Hypertension | 1 | 0 | 2300 | 3570 |
| 542 | Multicultural Education | 1 | 0 | 653 | 1158 |
| 542 | Transportation | 1 | 0 | 2463 | 3688 |
| 542 | Folklore | 11 | 0 | 31 | 318 |
| 542 | economic policy | 2 | 0 | 2905 | 5019 |
| 542 | Interdisciplinary Research | 1 | 0 | 44 | 126 |
| 542 | Socialism | 1 | 0 | 377 | 585 |
| 542 | Randomized Controlled Trials | 1 | 0 | 1987 | 3339 |
| 542 | Cardiovascular system | 1 | 0 | 2254 | 3431 |
| 542 | Social policy | 1 | 0 | 1710 | 2743 |
| 542 | Employee selection | 1 | 0 | 237 | 524 |
| 542 | Church History | 3 | 0 | 115 | 298 |
| 542 | European integration | 2 | 0 | 276 | 645 |
| 542 | Rhetoric | 3 | 0 | 155 | 430 |
| 542 | press | 1 | 0 | 263 | 509 |
| 542 | Library Science | 2 | 0 | 1575 | 3011 |
| 542 | case law | 1 | 0 | 23 | 43 |
| 542 | Dialectical materialism | 1 | 0 | 78 | 112 |
| 542 | biological factors | 1 | 0 | 3039 | 4518 |
| 542 | refugees | 1 | 0 | 486 | 865 |
| 542 | libraries | 1 | 0 | 1344 | 1793 |
| 542 | Private International Law | 1 | 0 | 26 | 49 |
| 542 | Southeast Asia | 1 | 0 | 816 | 1391 |
| 542 | Germany | 5 | 0 | 449 | 1976 |
| 542 | cardiac catheterization | 1 | 0 | 1191 | 1760 |
| 542 | Ukraine | 2 | 0 | 172 | 322 |
| 542 | European Economic Community | 2 | 0 | 266 | 636 |
| 542 | Agriculture | 1 | 0 | 3636 | 5330 |
| 542 | Muscle contraction | 1 | 0 | 667 | 1138 |
