| 1 | Oncology | 7 | 9.1K | 1926 | 254 |
| 2 | Medicine | 133 | 2.6K | 2207 | 3325 |
| 3 | Public Health | 65 | 1.8K | 1381 | 1582 |
| 4 | Neurology | 40 | 1.5K | 2191 | 2303 |
| 5 | Science | 67 | 1.5K | 3377 | 5433 |
| 6 | Research | 64 | 1.3K | 2772 | 3538 |
| 7 | Epidemiology | 46 | 1.1K | 1097 | 1329 |
| 8 | Virology | 14 | 798 | 1947 | 2220 |
| 9 | Microbiology | 17 | 783 | 4032 | 3830 |
| 10 | Obstetrics | 19 | 635 | 1360 | 1104 |
| 11 | Pediatrics | 8 | 522 | 2160 | 1701 |
| 12 | Africa | 25 | 453 | 441 | 353 |
| 13 | Hematology | 17 | 449 | 2161 | 2055 |
| 14 | Adolescent Medicine | 2 | 446 | 1003 | 562 |
| 15 | Cancer | 17 | 440 | 2189 | 2698 |
| 16 | Pregnancy | 13 | 421 | 354 | 325 |
| 17 | Tropical Medicine | 11 | 403 | 1157 | 755 |
| 17 | Host-parasite interactions | 3 | 403 | 1619 | 1222 |
| 17 | Virulence | 3 | 403 | 1491 | 1125 |
| 17 | Immunity | 3 | 403 | 2516 | 1948 |
| 21 | blood transfusion | 13 | 376 | 415 | 350 |
| 22 | Human genetics | 3 | 367 | 2847 | 3188 |
| 23 | Malaria | 15 | 340 | 296 | 379 |
| 24 | Biology | 24 | 316 | 5423 | 8779 |
| 25 | Diagnostic microbiology | 6 | 303 | 1238 | 1462 |
| 26 | Hypertension | 12 | 247 | 1109 | 1898 |
| 27 | Developing countries | 10 | 233 | 1478 | 1573 |
| 28 | Health | 10 | 228 | 1557 | 1718 |
| 29 | United States | 4 | 192 | 6227 | 4082 |
| 30 | Surgery | 9 | 190 | 1677 | 2390 |
| 31 | Women's health | 10 | 168 | 762 | 1028 |
| 32 | Behavior | 3 | 151 | 4034 | 3667 |
| 33 | Animal Behavior | 1 | 142 | 3476 | 2181 |
| 33 | Ethology | 1 | 142 | 2780 | 1879 |
| 33 | human behavior | 1 | 142 | 4734 | 3117 |
| 33 | Psychophysiology | 1 | 142 | 5032 | 3119 |
| 37 | Health Services Research | 11 | 137 | 1027 | 1596 |
| 38 | viruses | 1 | 130 | 2830 | 2068 |
| 39 | Psychiatry | 5 | 122 | 4532 | 4904 |
| 40 | Biotechnology | 6 | 121 | 5802 | 6961 |
| 40 | Dementia | 1 | 121 | 2714 | 1181 |
| 40 | Alzheimer's disease | 1 | 121 | 2779 | 1300 |
| 43 | Medical genetics | 4 | 115 | 3218 | 3884 |
| 44 | Mental Disorders | 5 | 112 | 3183 | 3736 |
| 45 | Kidney diseases | 6 | 106 | 887 | 1222 |
| 46 | Primary health care | 8 | 103 | 1324 | 1912 |
| 47 | rehabilitation | 4 | 99 | 2492 | 2571 |
| 48 | Diabetes mellitus | 4 | 98 | 2455 | 3110 |
| 49 | Pathology | 5 | 92 | 2449 | 3265 |
| 49 | Dermatology | 1 | 92 | 3396 | 2056 |
| 51 | Erectile dysfunction | 4 | 88 | 242 | 284 |
| 52 | Reproduction | 6 | 84 | 2205 | 2904 |
| 53 | women | 1 | 83 | 1715 | 571 |
| 54 | Chemistry | 4 | 80 | 10037 | 11365 |
| 54 | Physics | 3 | 80 | 10892 | 11918 |
| 54 | Health Policy | 8 | 80 | 1843 | 3064 |
| 57 | Embryology | 2 | 71 | 2289 | 2471 |
| 57 | Health Services Administration | 6 | 71 | 883 | 1512 |
| 59 | Child | 5 | 68 | 2599 | 3210 |
| 59 | Cardiovascular system | 2 | 68 | 2443 | 2900 |
| 61 | chronic disease | 3 | 67 | 434 | 529 |
| 61 | Chronic diseases | 3 | 67 | 936 | 1294 |
| 63 | Randomized Controlled Trials | 3 | 66 | 1565 | 1435 |
| 63 | Parasitology | 3 | 66 | 2976 | 3031 |
| 63 | Adolescent | 4 | 66 | 2470 | 2766 |
| 66 | Global Health | 10 | 63 | 570 | 1315 |
| 66 | Emergency Medicine | 3 | 63 | 2119 | 2054 |
| 68 | Medical Oncology | 6 | 60 | 2028 | 3062 |
| 68 | Diabetes | 3 | 60 | 2885 | 3716 |
| 70 | Urology | 4 | 59 | 2157 | 2775 |
| 70 | Research Design | 2 | 59 | 2027 | 1989 |
| 72 | Pharmacognosy | 1 | 57 | 3365 | 2902 |
| 72 | Medicinal plants | 1 | 57 | 2807 | 2356 |
| 72 | Parasitic Diseases | 2 | 57 | 3156 | 3217 |
| 72 | disease vectors | 1 | 57 | 1965 | 1544 |
| 72 | Parasites | 1 | 57 | 3013 | 2245 |
| 77 | Ophthalmology | 4 | 56 | 1973 | 2658 |
| 78 | disabilities | 1 | 54 | 1633 | 1115 |
| 79 | Metabolic diseases | 2 | 53 | 3645 | 4190 |
| 79 | Child welfare | 3 | 53 | 1374 | 1541 |
| 81 | Maternal health services | 2 | 51 | 695 | 750 |
| 82 | Medical Microbiology | 5 | 50 | 2415 | 4327 |
| 83 | Cardiovascular Pharmacology | 1 | 49 | 722 | 533 |
| 84 | Genomics | 2 | 48 | 4968 | 5470 |
| 84 | health planning | 5 | 48 | 2075 | 3060 |
| 86 | General Surgery | 4 | 47 | 808 | 1044 |
| 87 | Immunology | 3 | 45 | 4711 | 5899 |
| 88 | Endocrinology | 3 | 43 | 3985 | 5239 |
| 89 | Nursing | 2 | 41 | 2903 | 2597 |
| 90 | Neuropsychology | 3 | 40 | 2862 | 3764 |
| 90 | preventive medicine | 2 | 40 | 2164 | 2627 |
| 90 | Bacterial infections | 1 | 40 | 2022 | 2059 |
| 93 | Orthopedics | 2 | 39 | 2441 | 2663 |
| 93 | free radicals | 2 | 39 | 2157 | 2865 |
| 95 | Infection control | 1 | 38 | 1626 | 1466 |
| 95 | Hospitals | 1 | 38 | 1672 | 1333 |
| 95 | Intellectual disability | 1 | 38 | 1773 | 1417 |
| 98 | Oral Medicine | 1 | 35 | 1320 | 933 |
| 99 | Speech-Language Pathology | 1 | 31 | 627 | 514 |
| 99 | Language Disorders | 1 | 31 | 1632 | 1423 |
| 99 | ethnicity | 2 | 31 | 1083 | 1017 |
| 99 | speech therapy | 1 | 31 | 829 | 697 |
| 99 | health and race | 2 | 31 | 383 | 562 |
| 99 | Speech Disorders | 1 | 31 | 1917 | 1756 |
| 105 | Psychology | 4 | 30 | 5625 | 7942 |
| 105 | Mental Health Services | 1 | 30 | 2758 | 2431 |
| 107 | Nutrition | 3 | 29 | 5555 | 7726 |
| 107 | poverty | 1 | 29 | 1024 | 954 |
| 107 | healthcare disparities | 1 | 29 | 1200 | 1120 |
| 107 | Socioeconomic Factors | 1 | 29 | 1731 | 1778 |
| 111 | Critical Care | 1 | 28 | 3277 | 3659 |
| 111 | emergency management | 1 | 28 | 1923 | 1790 |
| 113 | Emergency Medical Services | 1 | 27 | 1894 | 1670 |
| 113 | Orthopedic Surgery | 1 | 27 | 1801 | 1745 |
| 113 | biological factors | 1 | 27 | 3597 | 3580 |
| 116 | Medical Anthropology | 1 | 26 | 2621 | 3201 |
| 116 | sadness | 1 | 26 | 556 | 464 |
| 116 | North America | 1 | 26 | 1985 | 1729 |
| 116 | death | 1 | 26 | 717 | 555 |
| 116 | Suicide | 1 | 26 | 1222 | 1239 |
| 116 | antisocial personality disorder | 1 | 26 | 556 | 464 |
| 122 | Biochemistry | 2 | 25 | 11105 | 12914 |
| 122 | Pediatric Endocrinology | 2 | 25 | 563 | 579 |
| 122 | Antioxidants | 1 | 25 | 1567 | 2017 |
| 122 | medical education | 2 | 25 | 3103 | 3599 |
| 122 | vitamin C | 1 | 25 | 938 | 1191 |
| 122 | vitamin E | 1 | 25 | 938 | 1191 |
| 128 | Transplantation | 1 | 24 | 2332 | 2536 |
| 129 | Nephrology | 2 | 23 | 946 | 1519 |
| 129 | health services accessibility | 4 | 23 | 1016 | 2085 |
| 131 | Geriatrics | 2 | 22 | 4652 | 5408 |
| 131 | Emergency Nursing | 1 | 22 | 419 | 398 |
| 131 | Palliative Care | 3 | 22 | 1194 | 1940 |
| 131 | Environmental Health | 2 | 22 | 7652 | 10168 |
| 131 | Metabolic syndrome | 1 | 22 | 651 | 734 |
| 131 | Thyroid hormones | 1 | 22 | 41 | 80 |
| 137 | patient satisfaction | 2 | 21 | 208 | 213 |
| 138 | Cytogenetics | 1 | 20 | 3085 | 3669 |
| 138 | Health promotion | 1 | 20 | 3237 | 3409 |
| 138 | Diet | 1 | 20 | 4280 | 4906 |
| 141 | Quality of life | 2 | 19 | 2375 | 3766 |
| 141 | government | 1 | 19 | 1476 | 1067 |
| 143 | Immunochemistry | 1 | 18 | 2188 | 2336 |
| 143 | immunoassay | 1 | 18 | 529 | 461 |
| 145 | Hydrology | 2 | 17 | 3566 | 4640 |
| 145 | pharmaceutical industry | 1 | 17 | 1323 | 1416 |
| 147 | Neonatology | 1 | 16 | 1461 | 1730 |
| 147 | Culture | 1 | 16 | 2126 | 1803 |
| 147 | Europe | 3 | 16 | 4267 | 6166 |
| 150 | Quality Control | 1 | 15 | 3606 | 4081 |
| 150 | behavioral medicine | 2 | 15 | 2099 | 3741 |
| 150 | Water | 1 | 15 | 4408 | 5415 |
| 150 | Water quality management | 1 | 15 | 3474 | 3846 |
| 150 | Water Microbiology | 1 | 15 | 1106 | 1550 |
| 155 | Behavioral research | 1 | 14 | 1193 | 1351 |
| 155 | Nervous system | 2 | 14 | 3673 | 5610 |
| 157 | Pharmacology | 1 | 13 | 9187 | 10308 |
| 157 | Dialysis | 1 | 13 | 351 | 279 |
| 157 | Kidney transplantation | 1 | 13 | 196 | 232 |
| 160 | liver | 1 | 11 | 770 | 1079 |
| 160 | Liver diseases | 1 | 11 | 2781 | 3666 |
| 162 | Clinical Trials | 1 | 10 | 1438 | 1851 |
| 162 | Contraception | 1 | 10 | 1380 | 1989 |
| 162 | kidney | 1 | 10 | 192 | 278 |
| 165 | health behavior | 2 | 9 | 1534 | 2942 |
| 165 | patient care management | 1 | 9 | 56 | 71 |
| 165 | Technology | 1 | 9 | 7966 | 8716 |
| 165 | Patient Care | 1 | 9 | 59 | 73 |
| 169 | Molecular Biology | 1 | 8 | 12248 | 14526 |
| 169 | Molecular Genetics | 1 | 8 | 3785 | 5046 |
| 169 | Human Rights | 1 | 8 | 1253 | 1480 |
| 169 | eye | 1 | 8 | 465 | 853 |
| 169 | Vision | 1 | 8 | 1289 | 1830 |
| 169 | gene mapping | 1 | 8 | 4046 | 5477 |
| 175 | Environmental monitoring | 1 | 7 | 6637 | 8762 |
| 175 | management | 1 | 7 | 5999 | 7074 |
| 175 | environmental exposure | 1 | 7 | 3904 | 5320 |
| 175 | planning | 1 | 7 | 1581 | 2212 |
| 175 | Nitric oxide | 1 | 7 | 822 | 1209 |
| 180 | Ecology | 1 | 6 | 10335 | 12889 |
| 180 | Microbial Ecology | 1 | 6 | 4203 | 5949 |
| 180 | Criminal psychology | 1 | 6 | 1403 | 1833 |
| 180 | Evolutionary Genetics | 1 | 6 | 1567 | 2422 |
| 180 | Molecular Epidemiology | 1 | 6 | 1567 | 2422 |
| 180 | Immunohematology | 4 | 6 | 132 | 345 |
| 180 | Mental Health | 1 | 6 | 3487 | 4571 |
| 180 | Forensic Psychiatry | 1 | 6 | 1125 | 1520 |
| 180 | Globalization | 1 | 6 | 1244 | 1882 |
| 180 | Environment | 1 | 6 | 8866 | 11727 |
| 180 | Blood group antigens | 4 | 6 | 76 | 245 |
| 180 | Criminal behavior | 1 | 6 | 431 | 648 |
| 180 | Decision making | 2 | 6 | 2335 | 4381 |
| 180 | Mental illness | 1 | 6 | 4008 | 5387 |
| 180 | international cooperation | 1 | 6 | 1332 | 1958 |
| 195 | Social Sciences | 1 | 5 | 7122 | 7901 |
| 195 | Genetics | 1 | 5 | 7131 | 8985 |
| 195 | Geography | 1 | 5 | 4258 | 5259 |
| 195 | Neurosurgery | 1 | 5 | 2353 | 3013 |
| 195 | Genetic epidemiology | 1 | 5 | 668 | 1061 |
| 195 | Medical Ethics | 1 | 5 | 2473 | 3262 |
| 195 | Travel | 1 | 5 | 2058 | 2921 |
| 195 | complementary therapies | 1 | 5 | 4104 | 5639 |
| 195 | Religion and Psychology | 1 | 5 | 1191 | 1734 |
| 195 | ethnic groups | 1 | 5 | 702 | 1229 |
| 195 | Osteoporosis | 1 | 5 | 882 | 1492 |
| 195 | Bone diseases | 1 | 5 | 1110 | 1743 |
| 195 | heredity | 1 | 5 | 1521 | 2187 |
| 195 | Allergy | 1 | 5 | 2431 | 3373 |
| 195 | alcoholism | 1 | 5 | 2944 | 4190 |
| 195 | drug abuse | 1 | 5 | 1437 | 2154 |
| 211 | Otolaryngology | 1 | 4 | 1317 | 1870 |
| 211 | Rheumatology | 1 | 4 | 2479 | 3374 |
| 211 | Medical Technology | 1 | 4 | 4049 | 5772 |
| 211 | Medical Laboratory Science | 1 | 4 | 4186 | 5855 |
| 211 | Carcinogenesis | 1 | 4 | 2127 | 3220 |
| 211 | Asia | 1 | 4 | 5695 | 7111 |
| 217 | Radiobiology | 4 | 3 | 2110 | 4085 |
| 217 | Child Development | 2 | 3 | 2916 | 5258 |
| 217 | grief | 1 | 3 | 195 | 264 |
| 217 | pain | 1 | 3 | 2848 | 3968 |
| 221 | Developmental Psychology | 1 | 2 | 1957 | 3059 |
| 221 | Geriatric Psychiatry | 1 | 2 | 2286 | 3511 |
| 221 | Infections | 1 | 2 | 2509 | 3954 |
| 221 | Cardiovascular diseases | 2 | 2 | 2533 | 4461 |
| 221 | infection | 1 | 2 | 3434 | 5142 |
| 221 | Library Science | 2 | 2 | 1932 | 3250 |
| 221 | drinking water | 1 | 2 | 347 | 784 |
| 221 | Social work | 1 | 2 | 3074 | 4429 |
| 221 | Aggression | 1 | 2 | 960 | 1751 |
| 221 | sex crimes | 1 | 2 | 1215 | 2014 |
| 221 | hygiene | 1 | 2 | 1216 | 2140 |
| 232 | Cytology | 1 | 1 | 7190 | 9609 |
| 232 | Latin America | 1 | 1 | 2436 | 3061 |
| 232 | Therapeutics | 1 | 1 | 3674 | 5496 |
| 232 | scientific societies | 1 | 1 | 1818 | 3073 |
| 236 | Public Health Informatics | 1 | 0 | 242 | 422 |
| 236 | Pharmaceutical Chemistry | 1 | 0 | 6598 | 8856 |
| 236 | Risk Management | 1 | 0 | 1698 | 3194 |
| 236 | Clinical Chemistry | 1 | 0 | 5348 | 7269 |
| 236 | Developmental Neurobiology | 1 | 0 | 1238 | 2003 |
| 236 | Sexual health | 1 | 0 | 1644 | 2339 |
| 236 | philology | 1 | 0 | 1342 | 1420 |
| 236 | Developmental Disabilities | 1 | 0 | 1939 | 3215 |
| 236 | Mycology | 1 | 0 | 3021 | 4404 |
| 236 | Hypertension in pregnancy | 1 | 0 | 697 | 1102 |
| 236 | mycoses | 1 | 0 | 1814 | 2899 |
| 236 | Neurodevelopmental disorders | 1 | 0 | 153 | 369 |
| 236 | Health Risk Assessment | 1 | 0 | 1129 | 2222 |
| 236 | Jurisprudence | 1 | 0 | 1951 | 3200 |
