| 1 | Medicine | 425 | 23.3K | 878 | 779 |
| 2 | Public Health | 253 | 12.9K | 441 | 339 |
| 3 | Science | 348 | 11.6K | 971 | 1864 |
| 4 | Research | 250 | 7.9K | 1017 | 1113 |
| 5 | Microbiology | 131 | 6.7K | 1219 | 1191 |
| 6 | Parasitology | 137 | 5.3K | 164 | 122 |
| 7 | Parasitic Diseases | 106 | 4.7K | 151 | 150 |
| 8 | Molecular Biology | 64 | 4.5K | 2635 | 2084 |
| 9 | Epidemiology | 71 | 4.2K | 793 | 500 |
| 10 | Parasites | 101 | 3.8K | 94 | 73 |
| 11 | Biology | 101 | 3.4K | 2387 | 3490 |
| 12 | Immunology | 70 | 2.9K | 1056 | 1173 |
| 13 | Malaria | 82 | 2.8K | 57 | 56 |
| 14 | Tropical Medicine | 120 | 2.5K | 81 | 109 |
| 15 | Chronic diseases | 1 | 2.3K | 1515 | 198 |
| 16 | Immunity | 30 | 2.2K | 742 | 875 |
| 17 | Vaccines | 60 | 2.2K | 302 | 285 |
| 18 | Biochemistry | 75 | 2.2K | 2907 | 3091 |
| 19 | disease vectors | 60 | 2.1K | 72 | 75 |
| 20 | Medical Microbiology | 40 | 2.0K | 698 | 727 |
| 21 | Ecology | 51 | 1.9K | 1978 | 2277 |
| 22 | Oncology | 4 | 1.8K | 2597 | 1069 |
| 23 | Physiology | 12 | 1.8K | 2939 | 1294 |
| 24 | Environmental Health | 47 | 1.7K | 1572 | 1702 |
| 25 | Host-parasite interactions | 18 | 1.7K | 532 | 498 |
| 26 | Virulence | 15 | 1.4K | 567 | 497 |
| 27 | Physics | 60 | 1.2K | 3460 | 5501 |
| 28 | Virology | 27 | 1.2K | 1361 | 1848 |
| 29 | Hypertension | 3 | 1.2K | 2142 | 832 |
| 30 | Genetics | 21 | 1.2K | 2062 | 1978 |
| 31 | Cardiovascular system | 5 | 1.1K | 1702 | 920 |
| 32 | Immunotherapy | 26 | 1.0K | 629 | 827 |
| 33 | Molecular Genetics | 18 | 1.0K | 986 | 778 |
| 34 | Cytology | 23 | 1.0K | 2227 | 2485 |
| 35 | Molecular ecology | 17 | 1.0K | 507 | 527 |
| 36 | Population Genetics | 16 | 990 | 592 | 507 |
| 37 | Chemistry | 30 | 967 | 4787 | 4978 |
| 38 | Human genetics | 5 | 963 | 2363 | 2275 |
| 39 | Pharmacology | 47 | 931 | 1880 | 2492 |
| 40 | Molecular Microbiology | 4 | 907 | 934 | 467 |
| 41 | Botany | 14 | 865 | 2427 | 1846 |
| 42 | Environment | 26 | 842 | 2145 | 3084 |
| 43 | Meteorology | 5 | 806 | 2317 | 1152 |
| 44 | infection | 15 | 778 | 862 | 741 |
| 45 | Environmental Engineering | 15 | 766 | 2099 | 1683 |
| 46 | Infections | 10 | 744 | 765 | 618 |
| 47 | Cell Biology | 22 | 741 | 2196 | 2861 |
| 48 | Toxicology | 24 | 734 | 2247 | 2334 |
| 49 | Pollution | 13 | 703 | 3486 | 3143 |
| 50 | Environmental Toxicology | 18 | 682 | 1022 | 1173 |
| 51 | Pediatrics | 24 | 645 | 1152 | 1526 |
| 51 | Diagnostic microbiology | 13 | 645 | 751 | 963 |
| 53 | Natural history | 50 | 620 | 1035 | 4663 |
| 53 | health planning | 26 | 620 | 626 | 578 |
| 55 | preventive medicine | 15 | 615 | 633 | 628 |
| 56 | Global Health | 47 | 614 | 123 | 189 |
| 57 | Medical innovations | 3 | 600 | 1366 | 872 |
| 57 | drug development | 3 | 600 | 1376 | 798 |
| 59 | environmental protection | 11 | 580 | 2242 | 1686 |
| 60 | Entomology | 27 | 577 | 891 | 783 |
| 61 | Health Services Research | 30 | 546 | 461 | 651 |
| 62 | drug therapy | 16 | 542 | 1363 | 1325 |
| 63 | Environmental monitoring | 17 | 540 | 2008 | 2242 |
| 64 | Analytical Chemistry | 17 | 525 | 2563 | 2485 |
| 65 | Biotechnology | 16 | 503 | 3697 | 4076 |
| 66 | Sociology | 5 | 491 | 2908 | 1297 |
| 67 | Psychology | 5 | 479 | 5105 | 2596 |
| 68 | Medical Anthropology | 4 | 476 | 1384 | 783 |
| 69 | Statistics | 12 | 462 | 1682 | 1141 |
| 69 | Health Services Administration | 23 | 462 | 276 | 417 |
| 69 | Health Policy | 24 | 462 | 853 | 1155 |
| 72 | United Kingdom | 6 | 451 | 1475 | 1005 |
| 73 | biological evolution | 13 | 448 | 1188 | 1491 |
| 74 | Developing countries | 25 | 398 | 733 | 1120 |
| 75 | viruses | 13 | 397 | 895 | 1248 |
| 76 | Immune system | 7 | 376 | 878 | 1141 |
| 77 | Socioeconomic Factors | 14 | 368 | 262 | 314 |
| 78 | Critical Care | 6 | 347 | 1575 | 1549 |
| 78 | Critical Care Medicine | 6 | 347 | 1471 | 1523 |
| 80 | Primary health care | 19 | 346 | 699 | 848 |
| 80 | Health promotion | 4 | 346 | 1698 | 848 |
| 82 | management | 16 | 344 | 1721 | 2014 |
| 82 | planning | 16 | 344 | 179 | 167 |
| 84 | Bacteriology | 5 | 334 | 1954 | 1636 |
| 85 | Biophysics | 20 | 328 | 3337 | 4182 |
| 86 | drugs | 17 | 321 | 1051 | 1345 |
| 87 | Obstetrics | 10 | 305 | 1977 | 1704 |
| 88 | Biochemical Engineering | 6 | 304 | 2907 | 3230 |
| 89 | Nanotechnology | 9 | 302 | 3755 | 3832 |
| 90 | environmental pollution | 12 | 300 | 2914 | 3588 |
| 91 | Evolutionary Genetics | 15 | 296 | 149 | 293 |
| 91 | Molecular Epidemiology | 15 | 296 | 149 | 293 |
| 93 | Dermatology | 9 | 288 | 1397 | 1270 |
| 94 | Therapeutics | 11 | 287 | 1198 | 1566 |
| 94 | diseases | 1 | 287 | 831 | 854 |
| 94 | Disease | 1 | 287 | 845 | 835 |
| 97 | Biometrics | 5 | 286 | 1047 | 653 |
| 98 | healthcare disparities | 13 | 282 | 183 | 205 |
| 98 | Pregnancy | 8 | 282 | 549 | 455 |
| 100 | Immunopathology | 7 | 277 | 1174 | 1085 |
| 101 | poverty | 12 | 276 | 100 | 140 |
| 102 | Transplantation | 1 | 274 | 2332 | 1148 |
| 103 | Bacteria | 1 | 271 | 829 | 358 |
| 104 | Ethnology | 15 | 270 | 676 | 589 |
| 105 | Histology | 6 | 267 | 1686 | 1496 |
| 106 | Genetic Toxicology | 3 | 260 | 577 | 372 |
| 106 | Clinical Pharmacology | 6 | 260 | 1354 | 1041 |
| 106 | Chromosomes | 3 | 260 | 1249 | 785 |
| 109 | Health | 5 | 251 | 2335 | 1606 |
| 110 | Bioengineering | 4 | 249 | 4783 | 4053 |
| 111 | Insects | 5 | 248 | 1416 | 835 |
| 112 | Biocompatible Materials | 7 | 247 | 3107 | 3474 |
| 112 | Bacterial infections | 3 | 247 | 1164 | 951 |
| 114 | mycoses | 3 | 243 | 1098 | 938 |
| 115 | Materials Science | 6 | 228 | 4265 | 3637 |
| 116 | Nutrition | 8 | 226 | 3661 | 3820 |
| 117 | Randomized Controlled Trials | 11 | 223 | 672 | 600 |
| 118 | Contraception | 13 | 216 | 270 | 433 |
| 119 | Adolescent Medicine | 4 | 213 | 650 | 839 |
| 119 | Reproductive health | 11 | 213 | 393 | 520 |
| 121 | health services accessibility | 25 | 212 | 231 | 609 |
| 122 | Cancer | 12 | 209 | 2585 | 3641 |
| 123 | Nanostructured Materials | 4 | 204 | 3217 | 2631 |
| 124 | Birth control | 9 | 197 | 223 | 327 |
| 125 | Pharmaceutical Chemistry | 9 | 180 | 3076 | 3750 |
| 126 | health behavior | 3 | 176 | 1236 | 849 |
| 126 | India | 12 | 176 | 813 | 482 |
| 126 | Behavior | 3 | 176 | 4034 | 3427 |
| 129 | gene mapping | 5 | 171 | 2067 | 2377 |
| 130 | Diet | 3 | 170 | 2777 | 2406 |
| 130 | Metals | 4 | 170 | 2417 | 1807 |
| 132 | Organic Chemistry | 8 | 169 | 2565 | 2755 |
| 132 | medical education | 12 | 169 | 1101 | 1446 |
| 134 | Visual Perception | 6 | 168 | 1670 | 1760 |
| 134 | Environmental pollutants | 8 | 168 | 1709 | 2205 |
| 134 | Memory | 6 | 168 | 1799 | 1946 |
| 134 | Attention | 6 | 168 | 1728 | 1805 |
| 134 | Perception | 6 | 168 | 1847 | 1931 |
| 139 | Vaccination | 3 | 167 | 288 | 207 |
| 140 | Genomics | 8 | 166 | 2777 | 3460 |
| 141 | Microbial Ecology | 9 | 157 | 1668 | 2858 |
| 142 | actuators | 9 | 147 | 1524 | 2229 |
| 142 | transducers | 9 | 147 | 1524 | 2229 |
| 144 | Diabetes | 10 | 146 | 1615 | 2778 |
| 145 | Hematology | 15 | 145 | 2294 | 3131 |
| 146 | Diabetes mellitus | 9 | 143 | 1637 | 2719 |
| 147 | drug resistance | 8 | 142 | 376 | 706 |
| 148 | proteins | 7 | 140 | 1853 | 2154 |
| 149 | Biomedical Engineering | 6 | 139 | 4702 | 4944 |
| 150 | Biopharmaceutics | 2 | 137 | 1886 | 1278 |
| 151 | Crystallography | 6 | 135 | 1515 | 970 |
| 151 | X-ray crystallography | 6 | 135 | 511 | 427 |
| 153 | Surgery | 3 | 132 | 2733 | 2668 |
| 154 | drug evaluation | 4 | 130 | 1464 | 1262 |
| 155 | Environmental Policy | 8 | 129 | 2406 | 3972 |
| 156 | DNA polymerases | 1 | 124 | 1011 | 1047 |
| 157 | Zoology | 13 | 123 | 1613 | 2180 |
| 158 | Bioorganic chemistry | 4 | 122 | 2980 | 3049 |
| 159 | Travel | 7 | 121 | 597 | 679 |
| 160 | Cell differentiation | 2 | 119 | 2581 | 2516 |
| 161 | health workforce | 7 | 118 | 105 | 261 |
| 162 | visualization | 8 | 117 | 1159 | 732 |
| 162 | freshwater biology | 1 | 117 | 1835 | 918 |
| 162 | gastrointestinal tract | 1 | 117 | 708 | 447 |
| 165 | Environmental Law | 7 | 116 | 816 | 1759 |
| 166 | Pharmacy | 18 | 114 | 982 | 2330 |
| 167 | Bioenergetics | 5 | 113 | 756 | 1025 |
| 167 | primary prevention | 5 | 113 | 355 | 439 |
| 169 | Medical genetics | 2 | 112 | 4104 | 3920 |
| 169 | Mycology | 10 | 112 | 1086 | 1796 |
| 169 | Zoonoses | 3 | 112 | 369 | 355 |
| 172 | Child Development | 3 | 110 | 2471 | 2283 |
| 173 | Proteomics | 2 | 109 | 1787 | 1579 |
| 174 | Hydrogeology | 1 | 107 | 1423 | 618 |
| 174 | Analytical Biochemistry | 3 | 107 | 2261 | 1935 |
| 176 | Emerging infectious diseases | 2 | 105 | 516 | 396 |
| 177 | Immunopharmacology | 8 | 102 | 662 | 1254 |
| 177 | Medical Ethics | 7 | 102 | 818 | 931 |
| 177 | cytokines | 8 | 102 | 910 | 1774 |
| 180 | Computational Biology | 5 | 99 | 3056 | 3394 |
| 180 | Genetic regulation | 5 | 99 | 1169 | 1767 |
| 182 | pollutants | 4 | 98 | 2020 | 2483 |
| 183 | Reproduction | 5 | 96 | 2379 | 2748 |
| 184 | Chemical Engineering | 5 | 93 | 4297 | 5020 |
| 184 | Anatomy | 1 | 93 | 3734 | 2421 |
| 184 | Embryology | 1 | 93 | 2887 | 2274 |
| 184 | Developmental Biology | 1 | 93 | 3792 | 2972 |
| 184 | Growth | 1 | 93 | 2248 | 1940 |
| 189 | biomedicine | 2 | 92 | 1464 | 1070 |
| 190 | Materials | 2 | 89 | 7514 | 6230 |
| 190 | Allergy | 2 | 89 | 1917 | 2106 |
| 192 | Ethics | 4 | 85 | 992 | 861 |
| 192 | Muscles | 2 | 85 | 1396 | 1365 |
| 194 | Research Design | 2 | 83 | 2027 | 1690 |
| 195 | Africa | 3 | 82 | 2022 | 1330 |
| 196 | Clinical Chemistry | 6 | 81 | 2859 | 4044 |
| 196 | Energy metabolism | 4 | 81 | 650 | 880 |
| 196 | cell membrane | 4 | 81 | 642 | 852 |
| 199 | Industrial Microbiology | 5 | 77 | 1830 | 2912 |
| 200 | Pharmacokinetics | 1 | 76 | 2087 | 1282 |
| 200 | Health Education | 2 | 76 | 3076 | 2379 |
| 202 | Metabolic diseases | 4 | 74 | 2768 | 3813 |
| 202 | Protozoa | 2 | 74 | 655 | 601 |
| 204 | Gene expression regulation | 4 | 73 | 1111 | 1578 |
| 204 | protein | 4 | 73 | 1384 | 1669 |
| 206 | Emergency Medicine | 1 | 70 | 3232 | 1956 |
| 206 | Pesticides | 3 | 70 | 793 | 789 |
| 206 | water supply | 1 | 70 | 1817 | 1397 |
| 206 | toxicity testing | 4 | 70 | 740 | 1111 |
| 210 | Psychiatry | 6 | 69 | 4187 | 5926 |
| 210 | Public Policy | 2 | 69 | 2760 | 2517 |
| 210 | Drug design | 2 | 69 | 2651 | 2496 |
| 213 | Pathology | 4 | 68 | 2697 | 3653 |
| 214 | Environmental Microbiology | 5 | 65 | 1279 | 2585 |
| 214 | Sarcopenia | 1 | 65 | 875 | 834 |
| 216 | Earth Sciences | 2 | 64 | 4404 | 3826 |
| 217 | Endocrinology | 4 | 63 | 3555 | 4758 |
| 217 | Energy Storage | 1 | 63 | 2210 | 1624 |
| 217 | energy conservation | 1 | 63 | 3589 | 3083 |
| 217 | environmental exposure | 4 | 63 | 2105 | 2983 |
| 221 | Drug delivery systems | 1 | 62 | 2888 | 2412 |
| 222 | Respiration | 2 | 61 | 2281 | 2380 |
| 223 | Agricultural Ecology | 4 | 60 | 1176 | 2009 |
| 223 | Agriculture | 4 | 60 | 2544 | 3092 |
| 225 | Immunochemistry | 7 | 59 | 774 | 1493 |
| 226 | synthesis | 5 | 58 | 960 | 1064 |
| 227 | breastfeeding | 4 | 57 | 527 | 800 |
| 228 | Human Rights | 2 | 56 | 877 | 617 |
| 228 | ecosystem | 3 | 56 | 1644 | 2320 |
| 228 | Spectrum analysis | 6 | 56 | 3985 | 5519 |
| 228 | Biodiversity | 2 | 56 | 3296 | 3280 |
| 232 | United States | 6 | 55 | 5125 | 6938 |
| 233 | Genetic engineering | 3 | 54 | 2806 | 3647 |
| 234 | Medical Laboratory Science | 2 | 51 | 3180 | 3578 |
| 234 | venom | 8 | 51 | 523 | 1250 |
| 234 | Toxins | 8 | 51 | 582 | 1363 |
| 237 | Water | 2 | 50 | 3489 | 4160 |
| 238 | Infection control | 2 | 49 | 1141 | 1304 |
| 239 | Diagnostic Imaging | 1 | 48 | 4190 | 3053 |
| 239 | Flow cytometry | 1 | 48 | 981 | 792 |
| 241 | Environmental Chemistry | 1 | 47 | 4062 | 3630 |
| 241 | Chromosome mapping | 4 | 47 | 2093 | 3576 |
| 241 | Evolution | 3 | 47 | 2375 | 3213 |
| 241 | Pancreatic diseases | 2 | 47 | 848 | 629 |
| 245 | Biosensors | 3 | 46 | 1532 | 2677 |
| 246 | Nanomedicine | 2 | 45 | 351 | 577 |
| 246 | Respiratory Infections | 5 | 45 | 312 | 678 |
| 246 | Proteome | 1 | 45 | 2360 | 2417 |
| 246 | Influenza | 5 | 45 | 216 | 574 |
| 250 | Economic History | 5 | 44 | 3517 | 3900 |
| 250 | Molecular evolution | 3 | 44 | 2232 | 3151 |
| 250 | Heterocyclic compounds | 2 | 44 | 1473 | 1135 |
| 253 | women's rights | 2 | 43 | 298 | 319 |
| 253 | Luminescence | 3 | 43 | 1575 | 1772 |
| 253 | Women's health | 2 | 43 | 2158 | 2283 |
| 256 | blood transfusion | 8 | 42 | 603 | 1338 |
| 256 | Carbon | 2 | 42 | 1875 | 2480 |
| 256 | scientific societies | 2 | 42 | 1340 | 1497 |
| 259 | Immunogenetics | 1 | 40 | 1562 | 1384 |
| 259 | gene therapy | 1 | 40 | 2374 | 2363 |
| 259 | carcinogens | 2 | 40 | 1576 | 2141 |
| 259 | Genetic therapy | 1 | 40 | 2533 | 2556 |
| 263 | Nanostructures | 1 | 39 | 4023 | 3603 |
| 263 | glycoproteins | 2 | 39 | 754 | 1043 |
| 263 | Glycoconjugates | 2 | 39 | 754 | 1043 |
| 263 | Oligosaccharides | 2 | 39 | 369 | 578 |
| 263 | glycolipids | 2 | 39 | 754 | 1043 |
| 268 | Geriatrics | 1 | 38 | 5787 | 4669 |
| 268 | Catalysis | 1 | 38 | 5104 | 4829 |
| 268 | Invertebrates | 2 | 38 | 951 | 1129 |
| 271 | occupational diseases | 2 | 37 | 1528 | 1943 |
| 271 | Electrochemistry | 2 | 37 | 4831 | 4883 |
| 273 | Sports Medicine | 1 | 36 | 4673 | 3529 |
| 273 | Exercise | 1 | 36 | 2618 | 1997 |
| 275 | Urology | 2 | 34 | 2816 | 3252 |
| 276 | Fluorescence | 3 | 33 | 507 | 702 |
| 276 | antibiotics | 3 | 33 | 485 | 815 |
| 278 | Sustainable Development | 3 | 32 | 2566 | 3804 |
| 278 | Antibacterial agents | 3 | 32 | 920 | 1758 |
| 278 | immunoassay | 3 | 32 | 209 | 299 |
| 281 | Mental Disorders | 2 | 31 | 4635 | 5595 |
| 281 | Environmental Management | 3 | 31 | 3457 | 5524 |
| 281 | Phylogeny | 2 | 31 | 1316 | 1935 |
| 284 | Neurology | 7 | 30 | 4801 | 8628 |
| 284 | Microorganisms | 2 | 30 | 1799 | 2795 |
| 284 | Japan | 6 | 30 | 1852 | 3104 |
| 287 | Ophthalmology | 2 | 29 | 2628 | 3291 |
| 287 | Economic Development | 5 | 29 | 1577 | 3120 |
| 287 | Animal ecology | 3 | 29 | 1410 | 2059 |
| 287 | women | 2 | 29 | 1231 | 1161 |
| 291 | soil microbiology | 1 | 28 | 2781 | 3381 |
| 291 | Metabolic syndrome | 1 | 28 | 651 | 647 |
| 293 | Water pollution | 2 | 27 | 3779 | 4986 |
| 294 | Systems Biology | 4 | 26 | 1803 | 3531 |
| 294 | Microbial Biotechnology | 3 | 26 | 1172 | 2178 |
| 294 | Synthetic biology | 1 | 26 | 685 | 780 |
| 294 | Stem cells | 3 | 26 | 2097 | 3253 |
| 294 | Jurisprudence | 2 | 26 | 1439 | 1640 |
| 294 | cloning | 1 | 26 | 1415 | 1829 |
| 300 | Pharmacognosy | 3 | 25 | 2212 | 3776 |
| 300 | Combinatorial chemistry | 1 | 25 | 1827 | 2074 |
| 300 | Medicinal plants | 2 | 25 | 2118 | 3109 |
| 300 | risk factors | 2 | 25 | 1152 | 1564 |
| 300 | miniaturization | 1 | 25 | 3353 | 3715 |
| 300 | Insect biochemistry | 1 | 25 | 911 | 1020 |
| 306 | mammals | 2 | 24 | 1617 | 2001 |
| 307 | Hydrology | 1 | 23 | 4471 | 4298 |
| 307 | Metabolism | 2 | 23 | 4183 | 5843 |
| 307 | Neurosurgery | 3 | 23 | 1501 | 2356 |
| 307 | Quality Control | 1 | 23 | 3606 | 3647 |
| 307 | Water quality management | 1 | 23 | 3474 | 3393 |
| 307 | Water Microbiology | 1 | 23 | 1106 | 1309 |
| 313 | Risk assessment | 1 | 22 | 1431 | 1358 |
| 313 | Health risk communication | 1 | 22 | 175 | 212 |
| 313 | Personality Disorders | 2 | 22 | 396 | 674 |
| 313 | Bioelectronics | 2 | 22 | 1599 | 2876 |
| 313 | Health Risk Assessment | 1 | 22 | 1129 | 1107 |
| 313 | Development | 5 | 22 | 713 | 1889 |
| 319 | Herbal medicine | 1 | 21 | 1534 | 2018 |
| 319 | Chromatography | 1 | 21 | 3141 | 3322 |
| 319 | animals | 5 | 21 | 1196 | 2322 |
| 319 | biological factors | 2 | 21 | 2830 | 3861 |
| 319 | Asia | 2 | 21 | 4366 | 4825 |
| 319 | Phytotherapy | 2 | 21 | 1336 | 2159 |
| 319 | cell physiology | 3 | 21 | 1961 | 3575 |
| 319 | Chromatographic analysis | 1 | 21 | 3573 | 3599 |
| 327 | Nephrology | 1 | 20 | 1247 | 1565 |
| 327 | Genetic disorders | 1 | 20 | 1100 | 1298 |
| 327 | Neuromuscular diseases | 1 | 20 | 1438 | 1662 |
| 327 | Molecular Spectroscopy | 2 | 20 | 2529 | 3451 |
| 327 | child abuse | 2 | 20 | 1259 | 2025 |
| 327 | Kidney diseases | 1 | 20 | 2004 | 2260 |
| 333 | Photochemistry | 1 | 19 | 3339 | 3684 |
| 333 | urban health | 2 | 19 | 436 | 885 |
| 333 | Photobiology | 1 | 19 | 2690 | 2972 |
| 333 | Chemical analysis | 1 | 19 | 2295 | 2657 |
| 337 | environmental indicators | 2 | 18 | 1630 | 2791 |
| 337 | Human biology | 1 | 18 | 1385 | 1466 |
| 339 | Aging | 2 | 17 | 4390 | 5605 |
| 340 | occupational health and safety | 1 | 16 | 554 | 578 |
| 340 | industrial hygiene | 1 | 16 | 2614 | 2231 |
| 340 | Antiviral agents | 1 | 16 | 757 | 999 |
| 340 | drug addiction | 2 | 16 | 1758 | 2803 |
| 340 | alcoholism | 2 | 16 | 2266 | 3468 |
| 345 | Nursing | 1 | 15 | 3862 | 3768 |
| 345 | Cross-Cultural Studies | 1 | 15 | 1499 | 1708 |
| 345 | Globalization | 1 | 15 | 1244 | 1505 |
| 345 | cross-cultural comparison | 1 | 15 | 1210 | 1418 |
| 345 | Cell death | 1 | 15 | 2231 | 2997 |
| 345 | international cooperation | 1 | 15 | 1332 | 1598 |
| 345 | Aquaculture | 1 | 15 | 2585 | 2885 |
| 352 | Nanochemistry | 2 | 14 | 1729 | 2709 |
| 352 | Alternative Medicine | 3 | 14 | 2322 | 4442 |
| 352 | complementary therapies | 3 | 14 | 2539 | 4709 |
| 352 | Plant diseases | 1 | 14 | 3322 | 3623 |
| 352 | nanoscience | 1 | 14 | 4898 | 5550 |
| 352 | disaster relief | 3 | 14 | 241 | 768 |
| 358 | Chemotherapy | 3 | 13 | 2009 | 3720 |
| 358 | Crystallization | 2 | 13 | 801 | 1092 |
| 358 | Bioethics | 2 | 13 | 1347 | 2003 |
| 358 | Substance Abuse | 2 | 13 | 2173 | 3403 |
| 358 | Coronary heart disease | 1 | 13 | 613 | 543 |
| 363 | Signal Transduction | 1 | 12 | 2656 | 3520 |
| 363 | Clinical Immunology | 2 | 12 | 2048 | 3218 |
| 363 | cell interaction | 1 | 12 | 2344 | 3105 |
| 363 | Cell communication | 1 | 12 | 1724 | 2418 |
| 367 | Language Disorders | 1 | 11 | 1632 | 1950 |
| 367 | Palliative Care | 1 | 11 | 2040 | 2423 |
| 367 | hospice care | 1 | 11 | 1334 | 1747 |
| 367 | Antioxidants | 1 | 11 | 1567 | 2319 |
| 367 | food contamination | 1 | 11 | 2199 | 2655 |
| 367 | Speech Disorders | 1 | 11 | 1917 | 2309 |
| 367 | free radicals | 1 | 11 | 2758 | 3573 |
| 367 | Hearing | 1 | 11 | 1344 | 1650 |
| 367 | vitamin C | 1 | 11 | 938 | 1459 |
| 367 | Speech | 1 | 11 | 1720 | 2098 |
| 367 | vitamin E | 1 | 11 | 938 | 1459 |
| 378 | air quality management | 1 | 10 | 1240 | 1945 |
| 378 | Bacterial diseases | 1 | 10 | 635 | 1051 |
| 380 | Occupational Health | 1 | 9 | 2586 | 2859 |
| 380 | Histochemistry | 1 | 9 | 2259 | 2862 |
| 380 | Neurovirology | 1 | 9 | 600 | 935 |
| 380 | sanitation | 1 | 9 | 2894 | 4148 |
| 380 | Ichthyology | 1 | 9 | 1030 | 1151 |
| 380 | Health equity | 1 | 9 | 172 | 260 |
| 380 | economic policy | 2 | 9 | 3554 | 4492 |
| 380 | sustainability | 1 | 9 | 1747 | 2461 |
| 380 | global environmental change | 1 | 9 | 1721 | 2571 |
| 380 | Forest Management | 2 | 9 | 1461 | 2547 |
| 380 | Arthropods | 1 | 9 | 601 | 845 |
| 380 | insect vectors | 4 | 9 | 18 | 118 |
| 380 | Pathogens | 4 | 9 | 55 | 519 |
| 380 | drug control | 1 | 9 | 824 | 1227 |
| 380 | Fisheries | 1 | 9 | 3089 | 3622 |
| 380 | Fish | 1 | 9 | 809 | 971 |
| 396 | Immunohematology | 5 | 8 | 96 | 280 |
| 396 | Blood group antigens | 5 | 8 | 54 | 199 |
| 396 | China | 1 | 8 | 5519 | 6726 |
| 396 | economic development projects | 1 | 8 | 489 | 809 |
| 396 | Plants | 2 | 8 | 2959 | 4545 |
| 396 | Genes | 1 | 8 | 2359 | 3183 |
| 402 | Neuropsychology | 1 | 7 | 4219 | 5412 |
| 402 | Comparative Physiology | 1 | 7 | 1583 | 2075 |
| 402 | Animal Behavior | 1 | 7 | 3476 | 4661 |
| 402 | Food Microbiology | 1 | 7 | 2483 | 3598 |
| 402 | Neurophysiology | 1 | 7 | 4962 | 6357 |
| 402 | Mutagenesis | 1 | 7 | 1092 | 1633 |
| 402 | Sexual health | 1 | 7 | 1644 | 1885 |
| 402 | teratogenic agents | 1 | 7 | 600 | 936 |
| 402 | Psychophysiology | 1 | 7 | 5032 | 6299 |
| 402 | Primates | 1 | 7 | 1446 | 1894 |
| 412 | Physical Chemistry | 1 | 6 | 3971 | 5028 |
| 412 | Electrocardiography | 1 | 6 | 959 | 1123 |
| 412 | Patient Safety | 1 | 6 | 232 | 386 |
| 412 | Pacific Islands | 1 | 6 | 808 | 1169 |
| 412 | Electrophysiology | 1 | 6 | 2321 | 2903 |
| 412 | Safety management | 1 | 6 | 1489 | 2117 |
| 412 | Mites | 2 | 6 | 647 | 1233 |
| 412 | Ticks | 2 | 6 | 493 | 1057 |
| 420 | Electronics | 1 | 5 | 5990 | 6736 |
| 420 | General Surgery | 1 | 5 | 1619 | 2106 |
| 420 | Oxidative stress | 1 | 5 | 2308 | 3612 |
| 420 | Cellular senescence | 1 | 5 | 1571 | 2643 |
| 420 | forest policy | 1 | 5 | 808 | 1325 |
| 420 | hygiene | 1 | 5 | 1216 | 1941 |
| 420 | Stress | 1 | 5 | 657 | 1179 |
| 420 | Europe | 3 | 5 | 4267 | 7663 |
| 420 | Acarology | 1 | 5 | 654 | 1057 |
| 420 | Acari | 1 | 5 | 626 | 1036 |
| 430 | Engineering | 2 | 4 | 6665 | 10035 |
| 430 | Urban Policy | 1 | 4 | 1536 | 2475 |
| 430 | Medical Oncology | 1 | 4 | 3890 | 4873 |
| 430 | Forest Ecology | 1 | 4 | 1940 | 2863 |
| 430 | Diagnosis | 2 | 4 | 1009 | 2244 |
| 430 | Islam | 2 | 4 | 857 | 1305 |
| 430 | disease susceptibility | 2 | 4 | 571 | 1526 |
| 430 | urban forestry | 1 | 4 | 655 | 1147 |
| 430 | biochemical markers | 2 | 4 | 1341 | 3010 |
| 430 | identification | 1 | 4 | 86 | 140 |
| 430 | Criminal investigation | 1 | 4 | 467 | 740 |
| 430 | symptoms | 2 | 4 | 571 | 1526 |
| 442 | Animal Physiology | 2 | 3 | 244 | 566 |
| 442 | Natural selection | 2 | 3 | 244 | 566 |
| 442 | Evidence-Based Medicine | 2 | 3 | 2009 | 3945 |
| 442 | Obesity | 1 | 3 | 3932 | 5805 |
| 442 | Animal genetics | 2 | 3 | 859 | 1774 |
| 442 | Cardiovascular diseases | 1 | 3 | 3214 | 4369 |
| 442 | Nuclear disarmament | 1 | 3 | 24 | 42 |
| 442 | Southern states | 1 | 3 | 706 | 1017 |
| 442 | genetic selection | 2 | 3 | 244 | 566 |
| 451 | Computer Science | 1 | 2 | 4291 | 5808 |
| 451 | Rheumatology | 1 | 2 | 2479 | 3522 |
| 451 | Clinical Trials | 1 | 2 | 1438 | 2369 |
| 451 | Animal Science | 1 | 2 | 81 | 104 |
| 451 | Risk Management | 1 | 2 | 1698 | 2891 |
| 451 | Pediatric Rheumatology | 1 | 2 | 580 | 962 |
| 451 | food technology | 1 | 2 | 4516 | 6325 |
| 451 | Child | 1 | 2 | 4987 | 6777 |
| 451 | Molecular cloning | 1 | 2 | 2929 | 4312 |
| 451 | Genetic recombination | 1 | 2 | 2880 | 4255 |
| 451 | Biofilms | 1 | 2 | 383 | 911 |
| 451 | Flood forecasting | 1 | 2 | 278 | 707 |
| 451 | Korea | 1 | 2 | 833 | 1316 |
| 451 | Flood control | 1 | 2 | 665 | 1227 |
| 451 | Condensed Matter | 1 | 2 | 5046 | 6235 |
| 451 | Recombinant DNA | 1 | 2 | 3054 | 4495 |
| 451 | food industry | 1 | 2 | 1499 | 2530 |
| 468 | Dietetics | 1 | 1 | 1829 | 2624 |
| 468 | War | 1 | 1 | 512 | 973 |
| 468 | Gerontology | 1 | 1 | 3914 | 5312 |
| 468 | warfare | 1 | 1 | 634 | 1188 |
| 468 | Elderly | 1 | 1 | 2615 | 3125 |
| 468 | older people | 1 | 1 | 3374 | 4421 |
| 468 | refugees | 1 | 1 | 591 | 1053 |
| 468 | Economic Assistance | 1 | 1 | 1479 | 2513 |
| 468 | Thorax | 1 | 1 | 1080 | 1786 |
| 477 | Education | 1 | 0 | 7322 | 10095 |
| 477 | Marine Biology | 1 | 0 | 4373 | 6271 |
| 477 | Anthropological Linguistics | 1 | 0 | 646 | 958 |
| 477 | Marine Ecology | 1 | 0 | 1465 | 2347 |
| 477 | Psychosomatic Medicine | 1 | 0 | 1775 | 2898 |
| 477 | Data Science | 1 | 0 | 384 | 420 |
| 477 | Nutrition physiology | 1 | 0 | 1656 | 2849 |
| 477 | epilepsy | 1 | 0 | 2011 | 3224 |
| 477 | Hemostasis | 1 | 0 | 1707 | 2667 |
| 477 | Thrombosis | 1 | 0 | 2224 | 3381 |
| 477 | Developmental Immunology | 1 | 0 | 1693 | 2769 |
| 477 | Probiotics | 1 | 0 | 491 | 1160 |
| 477 | Hospitals | 1 | 0 | 1672 | 2810 |
| 477 | peptides | 1 | 0 | 1916 | 3136 |
| 477 | plant molecular biology | 1 | 0 | 2662 | 4036 |
| 477 | Population | 2 | 0 | 1625 | 3674 |
| 477 | Liver diseases | 1 | 0 | 2781 | 4219 |
