| 1 | Chemistry | 243 | 2.6K | 1290 | 2570 |
| 2 | Physics | 131 | 1.7K | 1832 | 3809 |
| 3 | Nanotechnology | 31 | 1.3K | 1816 | 1689 |
| 4 | Biology | 61 | 1.2K | 2382 | 4293 |
| 5 | nanoscience | 11 | 1.1K | 1680 | 1019 |
| 6 | Science | 65 | 712 | 2589 | 5588 |
| 7 | Astrophysics | 31 | 586 | 1251 | 1488 |
| 8 | Materials | 53 | 530 | 1821 | 2851 |
| 9 | Medicine | 65 | 482 | 2607 | 5852 |
| 10 | Molecular Biology | 61 | 477 | 2169 | 4651 |
| 11 | Catalysis | 56 | 470 | 1004 | 1978 |
| 12 | Chemical Engineering | 41 | 454 | 1497 | 2465 |
| 13 | Biochemistry | 116 | 452 | 1874 | 4785 |
| 14 | Microbiology | 64 | 374 | 1593 | 4058 |
| 15 | Japan | 84 | 344 | 161 | 591 |
| 16 | Electrochemistry | 55 | 332 | 1089 | 1969 |
| 17 | Nuclear Physics | 61 | 320 | 1255 | 2161 |
| 18 | Natural history | 8 | 315 | 2545 | 4297 |
| 19 | Nanostructured Materials | 42 | 301 | 897 | 1865 |
| 20 | Research | 56 | 246 | 2373 | 6291 |
| 21 | Astronomy | 26 | 244 | 1169 | 1903 |
| 22 | Biocompatible Materials | 24 | 243 | 1499 | 2910 |
| 23 | Materials Science | 41 | 238 | 1490 | 2967 |
| 24 | Liver diseases | 11 | 230 | 795 | 1275 |
| 25 | Spectrum analysis | 27 | 220 | 1703 | 2789 |
| 26 | Biotechnology | 38 | 211 | 1824 | 4557 |
| 27 | Optical materials | 12 | 207 | 1476 | 1961 |
| 28 | Wireless Communication Systems | 7 | 200 | 1694 | 1413 |
| 29 | Solid State Physics | 55 | 196 | 1108 | 2337 |
| 30 | Biophysics | 48 | 192 | 1677 | 4241 |
| 31 | Polymers | 43 | 182 | 1467 | 2997 |
| 31 | polymerization | 41 | 182 | 1241 | 2568 |
| 33 | Condensed Matter | 51 | 173 | 960 | 2066 |
| 34 | Virology | 9 | 165 | 1899 | 3025 |
| 34 | Pollution | 12 | 165 | 3065 | 4623 |
| 36 | Hypertension | 3 | 164 | 1622 | 1629 |
| 37 | Cardiovascular system | 2 | 161 | 1865 | 1725 |
| 37 | Environment | 12 | 161 | 2776 | 5049 |
| 39 | Analytical Chemistry | 42 | 159 | 1393 | 3386 |
| 40 | Radiation | 12 | 153 | 1120 | 1384 |
| 40 | Radiobiology | 12 | 153 | 747 | 1196 |
| 42 | Oncology | 3 | 151 | 2475 | 2522 |
| 43 | Neurology | 14 | 145 | 2752 | 4491 |
| 44 | Photonics | 10 | 143 | 1192 | 1663 |
| 45 | Cancer | 11 | 142 | 1977 | 3328 |
| 46 | Renewable Energy Sources | 4 | 141 | 2494 | 2883 |
| 47 | Bioengineering | 28 | 135 | 1474 | 4167 |
| 48 | Quantum Gravity | 29 | 134 | 860 | 1483 |
| 49 | Pharmaceutical Chemistry | 19 | 119 | 1736 | 3496 |
| 50 | Geriatrics | 16 | 115 | 1324 | 2393 |
| 50 | Technology | 30 | 115 | 1266 | 3328 |
| 52 | Biodiversity conservation | 4 | 113 | 1474 | 1906 |
| 53 | Ecology | 24 | 110 | 2606 | 6267 |
| 54 | Climate change | 3 | 104 | 1029 | 1594 |
| 54 | Eutrophication | 3 | 104 | 971 | 1562 |
| 56 | Biochemical Engineering | 13 | 103 | 1808 | 3871 |
| 56 | United States | 12 | 103 | 2757 | 4287 |
| 58 | Pharmacology | 30 | 101 | 1963 | 5083 |
| 59 | Ocean Engineering | 17 | 98 | 733 | 1606 |
| 60 | Nanoparticles | 8 | 97 | 1230 | 1855 |
| 61 | Botany | 23 | 93 | 1550 | 3621 |
| 62 | Mathematical Physics | 35 | 90 | 823 | 1979 |
| 62 | energy development | 1 | 90 | 1724 | 1059 |
| 64 | Fire ecology | 1 | 88 | 134 | 79 |
| 64 | infection | 23 | 88 | 531 | 1865 |
| 64 | Colloids | 21 | 88 | 1635 | 3646 |
| 67 | Systems Biology | 4 | 86 | 1477 | 1689 |
| 68 | Organic Chemistry | 34 | 85 | 1080 | 2972 |
| 68 | Chemotherapy | 22 | 85 | 451 | 1574 |
| 68 | Therapeutics | 22 | 85 | 569 | 2076 |
| 68 | drug therapy | 22 | 85 | 847 | 2480 |
| 68 | Cell death | 4 | 85 | 1145 | 1660 |
| 73 | Surface Chemistry | 19 | 78 | 1743 | 3642 |
| 74 | Surgery | 9 | 77 | 1108 | 2287 |
| 75 | Metabolic diseases | 4 | 72 | 2046 | 2956 |
| 76 | Cytology | 21 | 71 | 1843 | 4883 |
| 76 | Metallurgy | 12 | 71 | 1294 | 2237 |
| 76 | Alzheimer's disease | 4 | 71 | 1338 | 1257 |
| 79 | Hematology | 14 | 70 | 1468 | 2903 |
| 79 | Dementia | 3 | 70 | 1476 | 1154 |
| 79 | liver | 4 | 70 | 280 | 355 |
| 82 | Entomology | 13 | 68 | 1128 | 1916 |
| 82 | Meteorites | 9 | 68 | 556 | 1177 |
| 84 | Toxicology | 23 | 67 | 1899 | 5300 |
| 85 | Zoology | 9 | 65 | 1547 | 2317 |
| 85 | Earth Sciences | 5 | 65 | 2620 | 3124 |
| 87 | Environmental Health | 6 | 64 | 4082 | 6204 |
| 87 | Telecommunication | 8 | 64 | 1801 | 2587 |
| 89 | Biomedical Engineering | 13 | 62 | 2766 | 5665 |
| 90 | Energy Conversion | 10 | 61 | 713 | 1717 |
| 90 | Energy Storage | 10 | 61 | 700 | 1472 |
| 90 | fuel cells | 10 | 61 | 735 | 1585 |
| 93 | adolescence | 8 | 60 | 509 | 1051 |
| 93 | Adolescent | 8 | 60 | 1283 | 2211 |
| 95 | Orthopedics | 14 | 58 | 743 | 1832 |
| 96 | particles | 9 | 57 | 474 | 1200 |
| 96 | Granular materials | 9 | 57 | 239 | 820 |
| 98 | plant molecular biology | 13 | 56 | 734 | 2186 |
| 98 | Metals | 11 | 56 | 1197 | 2384 |
| 100 | Environmental Engineering | 5 | 55 | 3164 | 4570 |
| 100 | Solid State Chemistry | 15 | 55 | 1226 | 2502 |
| 100 | Ultrasonics | 7 | 55 | 762 | 1769 |
| 100 | Sonochemistry | 7 | 55 | 313 | 1114 |
| 104 | Dermatology | 7 | 54 | 1216 | 1957 |
| 105 | Statistical physics | 24 | 52 | 1345 | 3253 |
| 105 | Youth | 7 | 52 | 401 | 881 |
| 107 | Pathology | 11 | 51 | 1224 | 3064 |
| 107 | Biosensors | 6 | 51 | 935 | 2209 |
| 107 | older people | 3 | 51 | 1659 | 1505 |
| 110 | Planetary Science | 7 | 50 | 305 | 536 |
| 110 | Microorganisms | 3 | 50 | 1118 | 1704 |
| 112 | Agricultural Chemistry | 16 | 49 | 982 | 2925 |
| 112 | arthritis | 9 | 49 | 715 | 1851 |
| 114 | Plant physiology | 13 | 48 | 1058 | 2694 |
| 115 | Kidney diseases | 4 | 47 | 905 | 1316 |
| 116 | Cell Biology | 11 | 46 | 2369 | 5305 |
| 117 | Rheumatology | 5 | 45 | 952 | 1582 |
| 117 | Mathematics | 45 | 45 | 1851 | 4622 |
| 117 | Geochemistry | 8 | 45 | 1332 | 2549 |
| 117 | Homeostasis | 1 | 45 | 776 | 1210 |
| 117 | Plant diseases | 11 | 45 | 1064 | 2185 |
| 117 | Cell metabolism | 1 | 45 | 1207 | 1392 |
| 123 | Social Psychology | 4 | 43 | 1839 | 2678 |
| 123 | Chemical analysis | 17 | 43 | 363 | 1675 |
| 125 | Nephrology | 2 | 42 | 719 | 1009 |
| 125 | Medical genetics | 9 | 42 | 1724 | 4024 |
| 125 | Photochemistry | 9 | 42 | 957 | 2223 |
| 125 | Photobiology | 8 | 42 | 751 | 1830 |
| 125 | city planning | 6 | 42 | 1070 | 1896 |
| 125 | Vaccines | 12 | 42 | 962 | 2708 |
| 131 | Magnetic Materials | 8 | 41 | 1064 | 1857 |
| 131 | Sarcopenia | 1 | 41 | 779 | 853 |
| 131 | Muscles | 1 | 41 | 1410 | 1389 |
| 134 | environmental protection | 3 | 40 | 3650 | 4790 |
| 135 | Artificial Intelligence | 8 | 39 | 2454 | 4278 |
| 135 | Industrial Microbiology | 9 | 39 | 1133 | 3080 |
| 135 | personality | 1 | 39 | 2078 | 1903 |
| 138 | gastrointestinal tract | 1 | 38 | 666 | 810 |
| 139 | Combustion | 6 | 37 | 916 | 1689 |
| 140 | Urban Policy | 2 | 36 | 1030 | 1277 |
| 140 | Antibacterial agents | 3 | 36 | 731 | 1332 |
| 140 | isomerism | 1 | 36 | 634 | 446 |
| 140 | Nervous system | 5 | 36 | 2058 | 3690 |
| 140 | Chirality | 1 | 36 | 634 | 446 |
| 145 | Nutrition | 24 | 35 | 1576 | 5832 |
| 145 | Physiology | 6 | 35 | 3167 | 5514 |
| 145 | Mineralogy | 8 | 35 | 878 | 1708 |
| 145 | Environmental monitoring | 6 | 35 | 3013 | 5387 |
| 145 | Plant genetic engineering | 10 | 35 | 452 | 1541 |
| 150 | Plant Genetics | 9 | 34 | 352 | 1194 |
| 150 | Metabolism | 7 | 34 | 1906 | 4353 |
| 152 | Nursing | 5 | 33 | 1490 | 2184 |
| 152 | Health | 2 | 33 | 2818 | 3287 |
| 152 | Food preferences | 1 | 33 | 713 | 733 |
| 155 | Environmental Management | 3 | 32 | 3042 | 4546 |
| 155 | actuators | 2 | 32 | 2623 | 3240 |
| 155 | Population | 6 | 32 | 587 | 1457 |
| 155 | transducers | 2 | 32 | 2623 | 3240 |
| 159 | Immunology | 9 | 31 | 2205 | 4963 |
| 159 | Geology | 11 | 31 | 1682 | 3512 |
| 159 | Environmental Policy | 2 | 31 | 4078 | 5141 |
| 159 | sanitation | 3 | 31 | 1595 | 2833 |
| 159 | Bacteriology | 4 | 31 | 1733 | 3091 |
| 159 | Obesity | 4 | 31 | 1820 | 3269 |
| 159 | Malaria | 3 | 31 | 739 | 1205 |
| 166 | Urban Planning | 4 | 30 | 291 | 707 |
| 166 | community development | 4 | 30 | 482 | 872 |
| 166 | Parasitology | 14 | 30 | 1102 | 3027 |
| 166 | Housing | 4 | 30 | 390 | 856 |
| 166 | nucleic acids | 3 | 30 | 1783 | 2796 |
| 166 | Carbon | 2 | 30 | 1614 | 2323 |
| 166 | environmental pollution | 6 | 30 | 3369 | 6203 |
| 166 | Aging | 5 | 30 | 2252 | 3765 |
| 174 | Geophysics | 8 | 29 | 2389 | 4524 |
| 174 | soil microbiology | 4 | 29 | 1310 | 2689 |
| 174 | Evidence-Based Medicine | 2 | 29 | 1001 | 1264 |
| 174 | enzymes | 4 | 29 | 1376 | 2525 |
| 178 | analysis | 2 | 28 | 383 | 501 |
| 178 | Mechanics | 2 | 28 | 1564 | 1510 |
| 178 | Chemical industry | 20 | 28 | 386 | 1840 |
| 181 | Robotics | 12 | 27 | 874 | 2413 |
| 181 | Electronics | 14 | 27 | 1931 | 4479 |
| 181 | free radicals | 4 | 27 | 1246 | 2545 |
| 184 | Psychiatry | 2 | 26 | 4955 | 5958 |
| 184 | Medical Laboratory Science | 7 | 26 | 1548 | 3954 |
| 184 | Immunotherapy | 8 | 26 | 1272 | 3351 |
| 184 | Optics | 13 | 26 | 2683 | 4691 |
| 184 | Microbial Ecology | 6 | 26 | 1687 | 3964 |
| 184 | Petrology | 6 | 26 | 660 | 1250 |
| 184 | Biodiversity | 6 | 26 | 1588 | 3363 |
| 191 | Pharmaceutical Technology | 5 | 25 | 1213 | 2550 |
| 191 | Clinical Chemistry | 2 | 25 | 3541 | 4515 |
| 191 | Oxidative stress | 2 | 25 | 1151 | 1959 |
| 191 | Fracture mechanics | 3 | 25 | 1513 | 2074 |
| 191 | Chemical processes | 5 | 25 | 470 | 1032 |
| 191 | clay | 2 | 25 | 979 | 1575 |
| 191 | Bone diseases | 1 | 25 | 918 | 1017 |
| 191 | catalytic activity | 5 | 25 | 465 | 1097 |
| 191 | Oxidation-reduction | 2 | 25 | 1039 | 1751 |
| 200 | Green Chemistry | 3 | 24 | 1766 | 2868 |
| 200 | Geobiology | 2 | 24 | 568 | 845 |
| 200 | Spine | 6 | 24 | 487 | 1245 |
| 200 | genome | 2 | 24 | 1987 | 2886 |
| 200 | Plant cells | 4 | 24 | 955 | 2096 |
| 205 | Mechatronics | 7 | 23 | 560 | 1571 |
| 205 | Human genetics | 2 | 23 | 2604 | 4150 |
| 205 | Environmental Law | 1 | 23 | 1927 | 2345 |
| 205 | Developmental Biology | 4 | 23 | 1806 | 3379 |
| 205 | Ceramic materials | 7 | 23 | 916 | 2058 |
| 205 | rehabilitation | 6 | 23 | 1655 | 3726 |
| 211 | Social Sciences | 3 | 22 | 3486 | 4305 |
| 211 | Pharmacy | 12 | 22 | 1082 | 3591 |
| 211 | Information Technology | 3 | 22 | 2549 | 3414 |
| 211 | Cardiovascular Pharmacology | 1 | 22 | 574 | 690 |
| 211 | Emerging infectious diseases | 2 | 22 | 489 | 905 |
| 211 | Parenteral nutrition | 5 | 22 | 792 | 1933 |
| 211 | Tropical Medicine | 11 | 22 | 905 | 2874 |
| 211 | Gastrointestinal diseases | 3 | 22 | 733 | 1227 |
| 219 | Meteorology | 1 | 21 | 3312 | 3686 |
| 219 | Microelectronics | 6 | 21 | 1417 | 2745 |
| 219 | Enteral nutrition | 4 | 21 | 748 | 1728 |
| 219 | calcification | 2 | 21 | 694 | 1122 |
| 219 | atmosphere | 1 | 21 | 1318 | 1467 |
| 219 | Planets | 5 | 21 | 1190 | 2536 |
| 219 | coal | 1 | 21 | 2527 | 2903 |
| 226 | Marine Biology | 9 | 20 | 1549 | 3849 |
| 226 | Statistics | 5 | 20 | 2126 | 3184 |
| 226 | Computational Biology | 3 | 20 | 2708 | 4232 |
| 226 | Genomics | 9 | 20 | 2057 | 5344 |
| 226 | Nanobiotechnology | 1 | 20 | 887 | 1300 |
| 226 | Nonlinear Dynamics | 8 | 20 | 1265 | 2640 |
| 226 | X-ray spectroscopy | 5 | 20 | 131 | 376 |
| 226 | Bioinformatics | 3 | 20 | 2245 | 3412 |
| 234 | Clinical Biochemistry | 2 | 19 | 1549 | 2203 |
| 234 | Water pollution | 3 | 19 | 2829 | 4455 |
| 234 | Microbial Biotechnology | 4 | 19 | 860 | 2048 |
| 234 | Water | 7 | 19 | 1720 | 4256 |
| 234 | Neural circuitry | 1 | 19 | 2952 | 3209 |
| 234 | Transplantation | 3 | 19 | 1137 | 1955 |
| 234 | Host-parasite interactions | 4 | 19 | 1135 | 2580 |
| 234 | health planning | 5 | 19 | 1745 | 3532 |
| 242 | Embryology | 3 | 18 | 1523 | 2681 |
| 242 | Data Mining | 1 | 18 | 3062 | 3253 |
| 242 | Sports Medicine | 9 | 18 | 1437 | 3342 |
| 242 | Strategic planning | 1 | 18 | 1248 | 1360 |
| 242 | Organometallic compounds | 2 | 18 | 1495 | 1948 |
| 242 | data collection | 1 | 18 | 2135 | 2365 |
| 242 | Growth | 2 | 18 | 1305 | 2134 |
| 242 | Plants | 2 | 18 | 2430 | 3200 |
| 250 | Radiology | 4 | 17 | 1371 | 2330 |
| 250 | Electrical Engineering | 11 | 17 | 2060 | 4019 |
| 250 | Anatomy | 2 | 17 | 2252 | 3105 |
| 250 | Environmental Microbiology | 4 | 17 | 1229 | 2920 |
| 250 | Fluid Dynamics | 8 | 17 | 663 | 1846 |
| 250 | Biomass Energy | 3 | 17 | 2446 | 3947 |
| 250 | Mental Disorders | 2 | 17 | 3475 | 4799 |
| 250 | Cell differentiation | 1 | 17 | 2423 | 3158 |
| 250 | landscapes | 1 | 17 | 399 | 435 |
| 250 | human behavior | 1 | 17 | 3732 | 4610 |
| 250 | cryosphere | 1 | 17 | 603 | 750 |
| 250 | Immunity | 6 | 17 | 1432 | 3628 |
| 262 | Greenhouse gases | 2 | 16 | 420 | 873 |
| 262 | economic policy | 3 | 16 | 2377 | 3098 |
| 262 | Enzyme | 3 | 16 | 532 | 1323 |
| 262 | Bioelectronics | 3 | 16 | 1184 | 2517 |
| 262 | Asia | 9 | 16 | 1660 | 4341 |
| 262 | Quantum theory | 7 | 16 | 609 | 1447 |
| 262 | Exercise | 1 | 16 | 2201 | 2109 |
| 269 | Structural Engineering | 4 | 15 | 1479 | 2478 |
| 269 | Molecular Microbiology | 1 | 15 | 1396 | 1898 |
| 269 | Bioinorganic chemistry | 6 | 15 | 1005 | 2300 |
| 269 | Composite Materials | 2 | 15 | 3085 | 4197 |
| 269 | Gerontology | 5 | 15 | 1547 | 3037 |
| 269 | Brain | 5 | 15 | 2126 | 4346 |
| 269 | Parasites | 9 | 15 | 923 | 2751 |
| 269 | miniaturization | 2 | 15 | 2261 | 3390 |
| 277 | Occupational Therapy | 5 | 14 | 795 | 1630 |
| 277 | Hydrology | 8 | 14 | 1608 | 3918 |
| 277 | Neurochemistry | 4 | 14 | 2096 | 4056 |
| 277 | Internet of Things | 3 | 14 | 1101 | 1899 |
| 277 | Cosmology | 1 | 14 | 948 | 964 |
| 277 | Geographic information systems | 2 | 14 | 1453 | 2013 |
| 277 | income distribution | 1 | 14 | 281 | 367 |
| 277 | nuclear astrophysics | 1 | 14 | 733 | 821 |
| 277 | Computational Fluid Dynamics | 2 | 14 | 818 | 1254 |
| 277 | Biometrics | 1 | 14 | 1665 | 1783 |
| 277 | internet | 3 | 14 | 1604 | 2647 |
| 288 | Hydrogeology | 3 | 13 | 719 | 1447 |
| 288 | Fluid Mechanics | 2 | 13 | 1928 | 2598 |
| 288 | Structural dynamics | 2 | 13 | 1190 | 1908 |
| 288 | Energy Policy | 3 | 13 | 2762 | 4753 |
| 288 | Atmospheric Physics | 4 | 13 | 1401 | 2682 |
| 288 | Natural resources | 1 | 13 | 1289 | 1591 |
| 288 | Flexible manufacturing systems | 1 | 13 | 793 | 1082 |
| 288 | Oncogenes | 1 | 13 | 1703 | 2441 |
| 288 | Bioorganic chemistry | 8 | 13 | 1978 | 4439 |
| 288 | Lipids | 1 | 13 | 2191 | 2797 |
| 288 | drugs | 4 | 13 | 2037 | 4202 |
| 299 | Geography | 3 | 12 | 2040 | 3591 |
| 299 | Industrial Safety | 1 | 12 | 2072 | 2342 |
| 299 | Neurophysiology | 4 | 12 | 2496 | 4830 |
| 299 | Superconductors | 3 | 12 | 1074 | 1544 |
| 299 | Organometallic chemistry | 3 | 12 | 2083 | 3027 |
| 299 | Investment analysis | 4 | 12 | 811 | 1641 |
| 299 | Cardiovascular diseases | 4 | 12 | 1524 | 3073 |
| 299 | polar regions | 3 | 12 | 651 | 1315 |
| 299 | Molecular structure | 3 | 12 | 2530 | 3940 |
| 299 | Diabetes | 7 | 12 | 1512 | 4247 |
| 299 | venom | 2 | 12 | 979 | 1683 |
| 299 | Toxins | 2 | 12 | 1084 | 1835 |
| 311 | Engineering | 2 | 11 | 5383 | 6982 |
| 311 | Psychology | 7 | 11 | 3320 | 7659 |
| 311 | Automation | 6 | 11 | 1663 | 3690 |
| 311 | Dynamics | 6 | 11 | 1120 | 2481 |
| 311 | Hemodynamics | 1 | 11 | 976 | 1386 |
| 311 | Thrombosis | 1 | 11 | 1694 | 2192 |
| 311 | Randomized Controlled Trials | 2 | 11 | 1516 | 2514 |
| 311 | mammals | 2 | 11 | 1272 | 1969 |
| 311 | amino acids | 3 | 11 | 597 | 1535 |
| 320 | Humanities | 1 | 10 | 3018 | 2861 |
| 320 | Public Health | 5 | 10 | 4687 | 9728 |
| 320 | Paleontology | 6 | 10 | 940 | 2066 |
| 320 | Neurosurgery | 3 | 10 | 1027 | 2081 |
| 320 | Food Microbiology | 6 | 10 | 863 | 2846 |
| 320 | Signal Processing | 2 | 10 | 2982 | 4251 |
| 320 | Cognitive Science | 4 | 10 | 1366 | 3073 |
| 320 | drug resistance | 3 | 10 | 818 | 2050 |
| 320 | Groundwater | 2 | 10 | 752 | 1380 |
| 320 | Antarctica | 2 | 10 | 650 | 1028 |
| 320 | Algal blooms | 3 | 10 | 289 | 815 |
| 320 | cell interaction | 4 | 10 | 955 | 2316 |
| 320 | Cyanobacteria | 3 | 10 | 289 | 815 |
| 320 | energy resources | 1 | 10 | 2183 | 3032 |
| 320 | mathematical analysis | 8 | 10 | 1527 | 2753 |
| 320 | Europe | 1 | 10 | 4950 | 5314 |
| 320 | microalgae | 3 | 10 | 289 | 815 |
| 337 | Computer Engineering | 1 | 9 | 1766 | 2043 |
| 337 | Computational Chemistry | 2 | 9 | 848 | 1426 |
| 337 | Critical Care | 1 | 9 | 2262 | 2978 |
| 337 | Geriatric Psychiatry | 4 | 9 | 862 | 2245 |
| 337 | Critical Care Medicine | 1 | 9 | 2187 | 2917 |
| 337 | Medical Physics | 3 | 9 | 1898 | 3257 |
| 337 | Electromagnetism | 2 | 9 | 1298 | 1885 |
| 337 | Cross-Cultural Studies | 1 | 9 | 1384 | 1718 |
| 337 | dietary supplements | 2 | 9 | 1163 | 2152 |
| 337 | Respiratory Infections | 7 | 9 | 225 | 986 |
| 337 | Inflammation | 1 | 9 | 1882 | 2627 |
| 337 | Plant hormones | 1 | 9 | 614 | 932 |
| 337 | X-rays | 2 | 9 | 861 | 1328 |
| 337 | Crystal growth | 2 | 9 | 1258 | 1972 |
| 337 | cross-cultural comparison | 1 | 9 | 1098 | 1377 |
| 337 | optical devices | 1 | 9 | 888 | 1132 |
| 337 | Informatics | 1 | 9 | 1479 | 1902 |
| 354 | Mechanical Engineering | 3 | 8 | 2637 | 3900 |
| 354 | Ophthalmology | 2 | 8 | 2166 | 3500 |
| 354 | Economics | 6 | 8 | 2940 | 5423 |
| 354 | Geometry | 6 | 8 | 744 | 1409 |
| 354 | Paleoclimatology | 5 | 8 | 871 | 2050 |
| 354 | Earthquake Engineering | 2 | 8 | 1554 | 2396 |
| 354 | Melanoma | 2 | 8 | 288 | 704 |
| 354 | Semiconductors | 1 | 8 | 3159 | 3514 |
| 354 | Genetic disorders | 1 | 8 | 804 | 1136 |
| 354 | Electrochemical Analysis | 1 | 8 | 2255 | 2768 |
| 354 | Adolescent Psychology | 1 | 8 | 1390 | 1818 |
| 354 | Calculus of Variations | 2 | 8 | 581 | 782 |
| 354 | scientific societies | 1 | 8 | 1362 | 1899 |
| 354 | Petroleum | 3 | 8 | 332 | 680 |
| 354 | computer networks | 2 | 8 | 2900 | 4030 |
| 354 | Genes | 3 | 8 | 1239 | 2595 |
| 370 | Genetics | 4 | 7 | 3541 | 6883 |
| 370 | Structural optimization | 1 | 7 | 636 | 927 |
| 370 | Paleoecology | 4 | 7 | 925 | 1980 |
| 370 | Signal Transduction | 5 | 7 | 1198 | 3124 |
| 370 | Animal Behavior | 2 | 7 | 2160 | 3653 |
| 370 | Physical Chemistry | 3 | 7 | 2143 | 3775 |
| 370 | Population Genetics | 4 | 7 | 1038 | 2555 |
| 370 | Physical organic chemistry | 4 | 7 | 1281 | 2646 |
| 370 | Sleep Disorders | 1 | 7 | 2442 | 2923 |
| 370 | Plasma chemistry | 2 | 7 | 514 | 1067 |
| 370 | Electrophoresis | 1 | 7 | 2582 | 3430 |
| 370 | Paleogeography | 4 | 7 | 840 | 1822 |
| 370 | Food additives | 2 | 7 | 1540 | 2737 |
| 370 | Chromatography | 1 | 7 | 2648 | 3401 |
| 370 | DNS | 1 | 7 | 993 | 1492 |
| 370 | China | 2 | 7 | 3590 | 5439 |
| 370 | Virulence | 3 | 7 | 1177 | 2652 |
| 370 | Chromatographic analysis | 1 | 7 | 2995 | 3694 |
| 370 | Women's health | 3 | 7 | 1402 | 3195 |
| 370 | Cell communication | 2 | 7 | 787 | 1654 |
| 370 | Sleep | 1 | 7 | 2494 | 2982 |
| 391 | Nanoelectronics | 4 | 6 | 792 | 1734 |
| 391 | Oral Medicine | 1 | 6 | 1224 | 1553 |
| 391 | Molecular Genetics | 4 | 6 | 1572 | 3828 |
| 391 | Nuclear Fusion | 1 | 6 | 1003 | 1219 |
| 391 | Agricultural Microbiology | 1 | 6 | 132 | 177 |
| 391 | Image Processing | 1 | 6 | 3362 | 4140 |
| 391 | Diabetes mellitus | 4 | 6 | 1867 | 4543 |
| 391 | Infection control | 1 | 6 | 751 | 1295 |
| 391 | nuclear magnetic resonance | 4 | 6 | 955 | 1967 |
| 391 | Metabolic syndrome | 1 | 6 | 620 | 1052 |
| 391 | Ethology | 1 | 6 | 2149 | 3043 |
| 391 | Water quality management | 2 | 6 | 2395 | 3908 |
| 391 | food contamination | 3 | 6 | 1121 | 2475 |
| 391 | Magnetic Resonance Spectroscopy | 4 | 6 | 1060 | 2208 |
| 391 | viruses | 2 | 6 | 1767 | 3163 |
| 391 | biological evolution | 4 | 6 | 1822 | 4200 |
| 391 | Insects | 7 | 6 | 950 | 2679 |
| 391 | extraterrestrial environment | 3 | 6 | 695 | 1532 |
| 391 | fusion reactors | 1 | 6 | 802 | 948 |
| 391 | Radiation effects | 3 | 6 | 652 | 1649 |
| 391 | pigments | 1 | 6 | 1376 | 1923 |
| 391 | Digestive system diseases | 2 | 6 | 1170 | 2220 |
| 413 | Soil Mechanics | 1 | 5 | 1709 | 2105 |
| 413 | Soil Science | 2 | 5 | 2217 | 3518 |
| 413 | Economic History | 4 | 5 | 2870 | 5158 |
| 413 | Educational Psychology | 3 | 5 | 1336 | 2728 |
| 413 | Psychopharmacology | 2 | 5 | 1856 | 3222 |
| 413 | Solar Energy | 1 | 5 | 2744 | 3657 |
| 413 | Nutrition physiology | 1 | 5 | 1354 | 2010 |
| 413 | Terahertz Technology | 3 | 5 | 164 | 513 |
| 413 | Geopolitics | 1 | 5 | 500 | 723 |
| 413 | Sovereignty | 1 | 5 | 248 | 417 |
| 413 | Waste management | 1 | 5 | 2458 | 3255 |
| 413 | Nutritional support | 1 | 5 | 330 | 555 |
| 413 | Water Purification | 1 | 5 | 2046 | 2761 |
| 413 | Neuropharmacology | 2 | 5 | 801 | 1552 |
| 413 | Heart Failure | 1 | 5 | 673 | 1058 |
| 413 | water supply | 1 | 5 | 1511 | 2167 |
| 413 | hydrocolloids | 1 | 5 | 1053 | 1620 |
| 430 | Nanochemistry | 3 | 4 | 1337 | 2779 |
| 430 | Pharmacognosy | 1 | 4 | 2831 | 3846 |
| 430 | Neuropsychology | 2 | 4 | 2682 | 4610 |
| 430 | Building Materials | 1 | 4 | 2350 | 3123 |
| 430 | Landscape Architecture | 3 | 4 | 138 | 459 |
| 430 | Landscape Ecology | 1 | 4 | 795 | 1301 |
| 430 | Veterinary Pathology | 1 | 4 | 584 | 850 |
| 430 | Algebra | 7 | 4 | 938 | 1900 |
| 430 | Medical Microbiology | 2 | 4 | 2785 | 5021 |
| 430 | Volcanology | 1 | 4 | 47 | 99 |
| 430 | Microbial Genetics | 2 | 4 | 452 | 1039 |
| 430 | Chemical Oceanography | 1 | 4 | 478 | 760 |
| 430 | Animal breeding | 1 | 4 | 1250 | 1761 |
| 430 | poverty | 1 | 4 | 850 | 1469 |
| 430 | Rheology | 2 | 4 | 779 | 1479 |
| 430 | Neuroanatomy | 1 | 4 | 490 | 838 |
| 430 | Drug design | 1 | 4 | 2677 | 3701 |
| 430 | healthcare disparities | 1 | 4 | 956 | 1599 |
| 430 | Socioeconomic Factors | 1 | 4 | 1471 | 2463 |
| 430 | preimplantation genetic diagnosis | 2 | 4 | 620 | 1324 |
| 430 | Marine Pollution | 1 | 4 | 2014 | 2862 |
| 430 | Globalization | 3 | 4 | 554 | 1695 |
| 430 | embryo transfer | 2 | 4 | 643 | 1347 |
| 430 | Nanostructures | 2 | 4 | 2406 | 3864 |
| 430 | phytopathogenic bacteria | 2 | 4 | 331 | 743 |
| 430 | Amyloidosis | 1 | 4 | 289 | 517 |
| 430 | International Finance | 1 | 4 | 2312 | 2963 |
| 430 | Parasitic Diseases | 3 | 4 | 2002 | 4109 |
| 430 | Molecular ecology | 1 | 4 | 1652 | 2517 |
| 430 | Food | 3 | 4 | 3168 | 6047 |
| 430 | Radioisotopes | 4 | 4 | 1092 | 2586 |
| 430 | Protozoa | 1 | 4 | 743 | 1125 |
| 430 | animals | 3 | 4 | 1308 | 2729 |
| 430 | natural products | 1 | 4 | 2713 | 3441 |
| 430 | disabilities | 1 | 4 | 1283 | 1931 |
| 430 | cooling | 3 | 4 | 49 | 150 |
| 430 | Reproduction | 2 | 4 | 2737 | 4568 |
| 430 | vapor-liquid equilibrium | 3 | 4 | 49 | 150 |
| 430 | Biomolecules | 1 | 4 | 873 | 1437 |
| 430 | body temperature | 1 | 4 | 1032 | 1572 |
| 430 | Microscopy | 7 | 4 | 905 | 3054 |
| 430 | biopolymers | 1 | 4 | 1869 | 2564 |
| 430 | Semiconductor industry | 1 | 4 | 1128 | 1539 |
| 430 | finance | 1 | 4 | 3261 | 3800 |
| 430 | planning | 1 | 4 | 1365 | 2021 |
| 430 | traffic safety | 1 | 4 | 595 | 991 |
| 430 | Autism | 1 | 4 | 1168 | 1764 |
| 430 | Behavior | 2 | 4 | 3746 | 6577 |
| 430 | wildlife diseases | 3 | 4 | 155 | 585 |
| 430 | Breeding | 1 | 4 | 1901 | 2638 |
| 430 | Pancreatic diseases | 1 | 4 | 677 | 963 |
| 481 | Industrial Engineering | 1 | 3 | 2807 | 3879 |
| 481 | Epidemiology | 2 | 3 | 4547 | 7746 |
| 481 | Mobile Computing | 1 | 3 | 1792 | 2446 |
| 481 | Geriatric Nursing | 2 | 3 | 717 | 1483 |
| 481 | Econometrics | 2 | 3 | 1648 | 2556 |
| 481 | Developmental Psychology | 1 | 3 | 1584 | 2340 |
| 481 | Plant Taxonomy | 2 | 3 | 511 | 937 |
| 481 | Food Preservation | 1 | 3 | 1324 | 1957 |
| 481 | Nuclear Chemistry | 2 | 3 | 1403 | 2373 |
| 481 | Radiochemistry | 2 | 3 | 1332 | 2257 |
| 481 | Fishery management | 1 | 3 | 1351 | 1998 |
| 481 | Infections | 1 | 3 | 1953 | 3008 |
| 481 | food technology | 2 | 3 | 3005 | 4973 |
| 481 | Wildlife conservation | 1 | 3 | 1879 | 2696 |
| 481 | mutation | 2 | 3 | 821 | 1672 |
| 481 | Fisheries Law | 1 | 3 | 238 | 415 |
| 481 | Flow chemistry | 1 | 3 | 73 | 175 |
| 481 | Leukemia | 3 | 3 | 1096 | 2292 |
| 481 | Turbulence | 2 | 3 | 315 | 667 |
| 481 | starch | 2 | 3 | 439 | 1031 |
| 481 | Plasma polymerization | 1 | 3 | 498 | 820 |
| 481 | phase diagrams | 1 | 3 | 298 | 449 |
| 481 | Chromosomes | 2 | 3 | 1227 | 2326 |
| 481 | fisheries management | 1 | 3 | 238 | 415 |
| 481 | Combinatorial analysis | 2 | 3 | 1108 | 1573 |
| 481 | human development | 1 | 3 | 1285 | 1997 |
| 481 | Scandinavia | 1 | 3 | 1113 | 1700 |
| 481 | Atomic spectroscopy | 3 | 3 | 1169 | 2332 |
| 481 | Jurisprudence | 1 | 3 | 1460 | 2014 |
| 481 | Fisheries | 3 | 3 | 1641 | 3335 |
| 481 | adulthood | 1 | 3 | 233 | 501 |
| 512 | Information Theory | 3 | 2 | 1430 | 2825 |
| 512 | Medical Technology | 1 | 2 | 3134 | 4681 |
| 512 | Architecture | 5 | 2 | 389 | 1152 |
| 512 | Ergonomics | 1 | 2 | 1708 | 2338 |
| 512 | Industrial Organization | 1 | 2 | 552 | 936 |
| 512 | Nuclear Medicine | 3 | 2 | 1088 | 2246 |
| 512 | Institutional Economics | 1 | 2 | 157 | 307 |
| 512 | Medical Oncology | 2 | 2 | 2314 | 4180 |
| 512 | Naval Architecture | 1 | 2 | 656 | 994 |
| 512 | Human Geography | 1 | 2 | 1661 | 2462 |
| 512 | Evolutionary Genetics | 1 | 2 | 1316 | 2133 |
| 512 | Architectural Design | 5 | 2 | 343 | 1318 |
| 512 | Molecular Epidemiology | 1 | 2 | 1316 | 2133 |
| 512 | Evolutionary economics | 1 | 2 | 333 | 618 |
| 512 | Emergency Medicine | 1 | 2 | 2232 | 3148 |
| 512 | Long-Term Care | 1 | 2 | 989 | 1630 |
| 512 | Long-term care facilities | 1 | 2 | 981 | 1614 |
| 512 | Diagnostic Imaging | 2 | 2 | 2608 | 4520 |
| 512 | Powder Metallurgy | 1 | 2 | 517 | 743 |
| 512 | Genetic databases | 1 | 2 | 127 | 331 |
| 512 | Molecular evolution | 2 | 2 | 1911 | 3646 |
| 512 | Adhesion | 1 | 2 | 1256 | 1908 |
| 512 | Food texture | 1 | 2 | 351 | 671 |
| 512 | Eating Disorders | 1 | 2 | 1357 | 2059 |
| 512 | Crystallography | 2 | 2 | 1977 | 2903 |
| 512 | Feeding and Eating Disorders | 1 | 2 | 1303 | 1974 |
| 512 | Cardiopulmonary Resuscitation | 1 | 2 | 395 | 575 |
| 512 | Echocardiography | 1 | 2 | 222 | 494 |
| 512 | Visual Perception | 1 | 2 | 2739 | 3993 |
| 512 | cardiac arrest | 1 | 2 | 395 | 575 |
| 512 | Cosmochemistry | 1 | 2 | 1436 | 2155 |
| 512 | Fish diseases | 1 | 2 | 223 | 467 |
| 512 | Marine resources | 1 | 2 | 1226 | 2003 |
| 512 | Physical fitness | 1 | 2 | 1553 | 2254 |
| 512 | Ethnology | 1 | 2 | 2256 | 2946 |
| 512 | Antibodies | 1 | 2 | 1165 | 1833 |
| 512 | Aquatic animals | 1 | 2 | 381 | 737 |
| 512 | Invertebrates | 1 | 2 | 1084 | 1699 |
| 512 | Antigens | 1 | 2 | 1445 | 2212 |
| 512 | Building | 5 | 2 | 405 | 1507 |
| 512 | animal diseases | 1 | 2 | 907 | 1587 |
| 512 | Hippocampus | 1 | 2 | 506 | 888 |
| 512 | ozone | 1 | 2 | 276 | 601 |
| 512 | cardiac catheterization | 2 | 2 | 1026 | 1685 |
| 512 | Memory | 1 | 2 | 2894 | 4247 |
| 512 | adhesives | 1 | 2 | 1336 | 1972 |
| 512 | Attention | 1 | 2 | 2838 | 4209 |
| 512 | synthesis | 3 | 2 | 1095 | 2363 |
| 512 | Perception | 1 | 2 | 2944 | 4226 |
| 561 | Political Science | 1 | 1 | 2474 | 3174 |
| 561 | Histology | 2 | 1 | 2249 | 4218 |
| 561 | Dentistry | 1 | 1 | 1229 | 1723 |
| 561 | Food Science | 1 | 1 | 487 | 982 |
| 561 | Linguistics | 2 | 1 | 1462 | 2554 |
| 561 | Game Theory | 2 | 1 | 655 | 1305 |
| 561 | Chronobiology | 1 | 1 | 944 | 1576 |
| 561 | Economic Geography | 1 | 1 | 624 | 1049 |
| 561 | Urban Economics | 1 | 1 | 608 | 971 |
| 561 | Ecological Genetics | 1 | 1 | 1135 | 1796 |
| 561 | Graph Theory | 1 | 1 | 1136 | 1485 |
| 561 | Food Safety | 1 | 1 | 593 | 1228 |
| 561 | Political Psychology | 1 | 1 | 535 | 920 |
| 561 | Palliative Care | 1 | 1 | 1567 | 2479 |
| 561 | Psycholinguistics | 2 | 1 | 1075 | 2129 |
| 561 | Comparative Physiology | 1 | 1 | 1174 | 1777 |
| 561 | Regional Planning | 1 | 1 | 2235 | 3281 |
| 561 | Political Sociology | 1 | 1 | 740 | 1124 |
| 561 | Regional Economics | 1 | 1 | 804 | 1344 |
| 561 | Cytogenetics | 2 | 1 | 1810 | 3522 |
| 561 | Plant Morphology | 3 | 1 | 565 | 1545 |
| 561 | Aerodynamics | 2 | 1 | 161 | 321 |
| 561 | Conservation Biology | 1 | 1 | 1881 | 2885 |
| 561 | Quantum electronics | 1 | 1 | 2594 | 3459 |
| 561 | Labor Economics | 1 | 1 | 857 | 1303 |
| 561 | Forest Ecology | 1 | 1 | 1605 | 2393 |
| 561 | Plant Biotechnology | 1 | 1 | 1379 | 2121 |
| 561 | Control Theory | 2 | 1 | 2023 | 3352 |
| 561 | Geothermal Energy | 1 | 1 | 537 | 933 |
| 561 | Analytical Biochemistry | 1 | 1 | 2849 | 4220 |
| 561 | Ichthyology | 3 | 1 | 457 | 1311 |
| 561 | Heat Exchangers | 1 | 1 | 1977 | 2888 |
| 561 | Research Design | 2 | 1 | 1574 | 3652 |
| 561 | Health equity | 1 | 1 | 157 | 369 |
| 561 | biological clocks | 1 | 1 | 944 | 1576 |
| 561 | Maternal health services | 2 | 1 | 517 | 1438 |
| 561 | preventive medicine | 2 | 1 | 1543 | 3422 |
| 561 | Land use | 1 | 1 | 1885 | 2923 |
| 561 | Biomechanics | 2 | 1 | 1660 | 3289 |
| 561 | Gene expression | 2 | 1 | 394 | 967 |
| 561 | Intelligence | 2 | 1 | 303 | 719 |
| 561 | digital preservation | 4 | 1 | 44 | 432 |
| 561 | micromechanics | 1 | 1 | 1054 | 1649 |
| 561 | Cell division | 2 | 1 | 535 | 1369 |
| 561 | Child welfare | 2 | 1 | 1395 | 3088 |
| 561 | Urbanization | 1 | 1 | 400 | 808 |
| 561 | urban health | 1 | 1 | 515 | 1105 |
| 561 | Herpetology | 1 | 1 | 633 | 998 |
| 561 | Technological Innovations | 1 | 1 | 1896 | 3006 |
| 561 | Phylogenetics | 1 | 1 | 229 | 494 |
| 561 | Child Development | 1 | 1 | 2912 | 4279 |
| 561 | histological techniques | 1 | 1 | 1173 | 1960 |
| 561 | Drying | 1 | 1 | 696 | 1170 |
| 561 | Forest Management | 1 | 1 | 1550 | 2306 |
| 561 | Mycology | 2 | 1 | 1939 | 3388 |
| 561 | mycoses | 1 | 1 | 1424 | 2199 |
| 561 | food handling | 1 | 1 | 1577 | 2553 |
| 561 | Elderly | 1 | 1 | 2076 | 2426 |
| 561 | Diet | 1 | 1 | 3309 | 4981 |
| 561 | geological modeling | 1 | 1 | 966 | 1566 |
| 561 | circadian rhythm | 1 | 1 | 944 | 1576 |
| 561 | biological rhythms | 1 | 1 | 903 | 1527 |
| 561 | economic analysis | 1 | 1 | 501 | 943 |
| 561 | Nonprofit organizations | 1 | 1 | 582 | 1047 |
| 561 | health services | 1 | 1 | 1951 | 3230 |
| 561 | Amphibians | 1 | 1 | 469 | 816 |
| 561 | food industry | 1 | 1 | 1450 | 2242 |
| 561 | plant communities | 1 | 1 | 1605 | 2496 |
| 561 | DNA | 1 | 1 | 1179 | 1937 |
| 561 | Australia | 1 | 1 | 3333 | 4943 |
| 561 | Minerals | 1 | 1 | 1446 | 2329 |
| 561 | Information Science | 1 | 1 | 3891 | 5521 |
| 561 | lasers | 6 | 1 | 1755 | 4212 |
| 561 | Psychophysiology | 1 | 1 | 3801 | 5487 |
| 561 | Cognition | 2 | 1 | 1941 | 3700 |
| 561 | Phylogeny | 1 | 1 | 1371 | 2141 |
| 561 | cycles | 1 | 1 | 326 | 651 |
| 561 | silicon | 1 | 1 | 758 | 1312 |
| 561 | Aquatic ecology | 2 | 1 | 1157 | 2364 |
| 561 | Influenza | 1 | 1 | 536 | 1011 |
| 641 | Education | 1 | 0 | 5196 | 7232 |
| 641 | Computer Science | 1 | 0 | 3354 | 4879 |
| 641 | Sociology | 1 | 0 | 4594 | 6736 |
| 641 | Otolaryngology | 1 | 0 | 968 | 1558 |
| 641 | Endocrinology | 1 | 0 | 4359 | 6077 |
| 641 | Nuclear Engineering | 1 | 0 | 2564 | 3528 |
| 641 | Physical Therapy | 1 | 0 | 2162 | 3241 |
| 641 | Obstetrics | 1 | 0 | 3659 | 5398 |
| 641 | Pediatrics | 1 | 0 | 3911 | 5878 |
| 641 | Geomorphology | 1 | 0 | 2014 | 2871 |
| 641 | Nuclear Energy | 1 | 0 | 1895 | 2678 |
| 641 | Functional Analysis | 1 | 0 | 1730 | 2265 |
| 641 | Genetic Toxicology | 1 | 0 | 905 | 1551 |
| 641 | Thermodynamics | 1 | 0 | 1959 | 2832 |
| 641 | Occupational Health | 1 | 0 | 1918 | 3183 |
| 641 | Special Education | 1 | 0 | 1251 | 1931 |
| 641 | Radiation Oncology | 1 | 0 | 713 | 1208 |
| 641 | Environmental Geology | 1 | 0 | 2490 | 3611 |
| 641 | Sustainable Engineering | 1 | 0 | 2483 | 3693 |
| 641 | Horticulture | 1 | 0 | 1325 | 2061 |
| 641 | Genetic engineering | 1 | 0 | 3464 | 5085 |
| 641 | Dietetics | 1 | 0 | 1120 | 1928 |
| 641 | Discourse Analysis | 1 | 0 | 617 | 1087 |
| 641 | Adolescent Medicine | 1 | 0 | 1060 | 1885 |
| 641 | Economic Development | 1 | 0 | 2562 | 3911 |
| 641 | Evolutionary Psychology | 1 | 0 | 294 | 554 |
| 641 | Histochemistry | 1 | 0 | 1705 | 2652 |
| 641 | Clinical Immunology | 1 | 0 | 1812 | 2853 |
| 641 | Plant Ecology | 1 | 0 | 2535 | 3734 |
| 641 | Number Theory | 2 | 0 | 901 | 1732 |
| 641 | Topology | 1 | 0 | 448 | 671 |
| 641 | Differential Equations | 2 | 0 | 1133 | 1934 |
| 641 | Statistical Mechanics | 1 | 0 | 993 | 1525 |
| 641 | Plate Tectonics | 1 | 0 | 512 | 864 |
| 641 | industrial hygiene | 1 | 0 | 1929 | 3129 |
| 641 | Crystallization | 1 | 0 | 908 | 1387 |
| 641 | Immunopharmacology | 1 | 0 | 1946 | 2988 |
| 641 | Economic Thought | 1 | 0 | 529 | 874 |
| 641 | Ecohydrology | 1 | 0 | 731 | 1292 |
| 641 | Neurotransmitters | 1 | 0 | 960 | 1222 |
| 641 | Measurement | 1 | 0 | 2316 | 3560 |
| 641 | Coatings | 2 | 0 | 73 | 241 |
| 641 | Mutagenesis | 1 | 0 | 928 | 1712 |
| 641 | Quantum Optics | 1 | 0 | 1364 | 1958 |
| 641 | Discrete geometry | 1 | 0 | 425 | 662 |
| 641 | Antioxidants | 1 | 0 | 1287 | 2093 |
| 641 | Soft Condensed Matter | 1 | 0 | 1667 | 2492 |
| 641 | motivation | 1 | 0 | 606 | 1113 |
| 641 | Synthetic biology | 1 | 0 | 612 | 1053 |
| 641 | Geodynamics | 2 | 0 | 1023 | 1905 |
| 641 | Noise control | 1 | 0 | 610 | 676 |
| 641 | Semiotics | 1 | 0 | 620 | 948 |
| 641 | Sports | 6 | 0 | 1412 | 3932 |
| 641 | Welding | 1 | 0 | 593 | 1042 |
| 641 | Computational Complexity | 1 | 0 | 1620 | 2478 |
| 641 | System analysis | 1 | 0 | 3475 | 5110 |
| 641 | Luminescence | 1 | 0 | 2041 | 2960 |
| 641 | families | 4 | 0 | 748 | 2316 |
| 641 | Electrophysiology | 1 | 0 | 1751 | 2688 |
| 641 | Communication | 3 | 0 | 2058 | 4709 |
| 641 | Porous materials | 1 | 0 | 1337 | 2092 |
| 641 | Arthropods | 1 | 0 | 506 | 986 |
| 641 | economic conditions | 1 | 0 | 869 | 1388 |
| 641 | industrial relations | 1 | 0 | 1318 | 2095 |
| 641 | cytokines | 1 | 0 | 2104 | 3218 |
| 641 | environmental exposure | 1 | 0 | 3187 | 4829 |
| 641 | Mitochondrial DNA | 1 | 0 | 474 | 877 |
| 641 | Africa | 1 | 0 | 2573 | 3876 |
| 641 | Learning | 1 | 0 | 1911 | 3125 |
| 641 | Radio waves | 1 | 0 | 1462 | 2186 |
| 641 | Chemical structure | 1 | 0 | 999 | 1629 |
| 641 | Southeast Asia | 1 | 0 | 703 | 1279 |
| 641 | mutagens | 1 | 0 | 1395 | 2205 |
| 641 | Middle East | 1 | 0 | 1735 | 2570 |
| 641 | anesthesia | 1 | 0 | 987 | 1590 |
| 641 | Radio | 1 | 0 | 2450 | 3579 |
| 641 | Education history | 1 | 0 | 177 | 373 |
| 641 | color | 1 | 0 | 524 | 977 |
| 641 | cell physiology | 1 | 0 | 2335 | 3522 |
| 641 | concrete | 1 | 0 | 1468 | 2178 |
| 641 | Respiration | 1 | 0 | 2353 | 3591 |
| 641 | Fungi | 1 | 0 | 1631 | 2420 |
| 641 | Cement | 1 | 0 | 946 | 1492 |
| 641 | Laser Spectroscopy | 1 | 0 | 1309 | 1902 |
| 641 | Membranes | 4 | 0 | 1575 | 3650 |
| 641 | Approximation Theory | 1 | 0 | 641 | 974 |
| 641 | Endocrine system | 1 | 0 | 1280 | 1459 |
| 641 | Birds | 1 | 0 | 1740 | 2432 |
| 641 | Evolution | 1 | 0 | 2833 | 4290 |
| 641 | population geography | 1 | 0 | 672 | 1145 |
| 641 | deviant behavior | 1 | 0 | 495 | 833 |
| 641 | vitamin C | 1 | 0 | 803 | 1455 |
| 641 | Heterocyclic compounds | 1 | 0 | 1588 | 2311 |
| 641 | Developing countries | 1 | 0 | 3971 | 5840 |
| 641 | Immune system | 1 | 0 | 1752 | 2749 |
| 641 | vitamin E | 1 | 0 | 803 | 1455 |
| 641 | Catalysts | 2 | 0 | 883 | 1856 |