| 1 | Science | 42 | 3.3K | 4351 | 3250 |
| 2 | Biology | 12 | 2.9K | 7312 | 3244 |
| 3 | Physics | 7 | 2.7K | 8505 | 3503 |
| 4 | Natural history | 2 | 2.6K | 6204 | 2237 |
| 5 | Medicine | 71 | 2.1K | 3214 | 3306 |
| 6 | Cancer | 23 | 779 | 1789 | 1831 |
| 7 | Hematology | 66 | 701 | 1068 | 1528 |
| 8 | Oncology | 5 | 696 | 2284 | 1511 |
| 9 | Research | 43 | 660 | 3470 | 4534 |
| 10 | Endocrinology | 37 | 631 | 1093 | 1749 |
| 11 | Microbiology | 30 | 544 | 3037 | 4080 |
| 12 | Molecular Biology | 24 | 481 | 4304 | 5208 |
| 13 | Critical Care Medicine | 35 | 477 | 474 | 1130 |
| 14 | Metabolism | 34 | 455 | 1069 | 1898 |
| 15 | Diagnostic Imaging | 15 | 440 | 1069 | 921 |
| 16 | Psychiatry | 18 | 422 | 2381 | 2605 |
| 17 | Diabetes | 20 | 405 | 1079 | 1590 |
| 18 | Critical Care | 13 | 397 | 985 | 1264 |
| 19 | Lung Transplantation | 15 | 393 | 323 | 265 |
| 19 | Heart transplantation | 15 | 393 | 323 | 265 |
| 19 | blood transfusion | 4 | 393 | 848 | 276 |
| 22 | Clinical Chemistry | 22 | 365 | 1349 | 1940 |
| 23 | Diabetes mellitus | 13 | 329 | 1302 | 1687 |
| 23 | Proteome | 6 | 329 | 1034 | 814 |
| 23 | proteins | 6 | 329 | 1946 | 1244 |
| 26 | Human genetics | 9 | 311 | 1771 | 2994 |
| 26 | Metabolic diseases | 26 | 311 | 1012 | 2006 |
| 28 | Biochemistry | 18 | 290 | 5526 | 6406 |
| 29 | Liver diseases | 7 | 270 | 1238 | 1394 |
| 30 | Nutrition | 13 | 241 | 2877 | 3394 |
| 31 | Chemistry | 14 | 240 | 6664 | 7637 |
| 32 | Allergy | 6 | 238 | 1118 | 1329 |
| 32 | Australia | 33 | 238 | 431 | 844 |
| 34 | Public Health | 11 | 204 | 4179 | 4619 |
| 35 | Orthopedics | 16 | 197 | 790 | 1157 |
| 36 | Randomized Controlled Trials | 15 | 196 | 509 | 545 |
| 37 | Surgery | 21 | 190 | 1000 | 2127 |
| 38 | Cytology | 3 | 183 | 5171 | 4227 |
| 39 | Medical genetics | 12 | 177 | 1982 | 2992 |
| 40 | Obstetrics | 7 | 171 | 2230 | 2015 |
| 41 | Pregnancy | 2 | 169 | 1411 | 532 |
| 42 | Immunity | 2 | 163 | 2830 | 2440 |
| 43 | Health Policy | 2 | 159 | 3735 | 1842 |
| 44 | Environment | 6 | 152 | 4714 | 6029 |
| 45 | Obesity | 13 | 148 | 1164 | 2116 |
| 46 | Immunology | 14 | 145 | 2469 | 3853 |
| 47 | Hypertension | 6 | 143 | 1504 | 2033 |
| 48 | Medical Oncology | 5 | 134 | 1977 | 1968 |
| 49 | drug resistance | 4 | 132 | 715 | 592 |
| 50 | Diet | 6 | 126 | 2022 | 2590 |
| 51 | Radiobiology | 4 | 125 | 1861 | 1571 |
| 52 | Epidemiology | 8 | 120 | 3161 | 3846 |
| 52 | Genomics | 12 | 120 | 2162 | 3465 |
| 54 | Long-Term Care | 4 | 117 | 509 | 599 |
| 54 | Long-term care facilities | 4 | 117 | 506 | 598 |
| 54 | United States | 4 | 117 | 6261 | 4646 |
| 54 | Respiration | 5 | 117 | 1491 | 1620 |
| 58 | Computer Vision | 1 | 113 | 2215 | 1281 |
| 58 | Image Processing | 1 | 113 | 3728 | 1902 |
| 60 | Geriatrics | 13 | 112 | 1833 | 2702 |
| 60 | Cell Biology | 5 | 112 | 4155 | 4837 |
| 62 | Physiology | 6 | 102 | 3988 | 4647 |
| 62 | Sports Medicine | 15 | 102 | 1378 | 2057 |
| 64 | Antibacterial agents | 11 | 98 | 300 | 888 |
| 65 | Clinical Biochemistry | 5 | 96 | 1317 | 1384 |
| 65 | Cardiovascular system | 3 | 96 | 2005 | 2391 |
| 67 | arthritis | 12 | 93 | 812 | 1811 |
| 68 | Dermatology | 6 | 92 | 1664 | 1816 |
| 68 | Clinical Immunology | 7 | 92 | 1069 | 1495 |
| 70 | Aging | 11 | 91 | 1948 | 2938 |
| 71 | Medical Microbiology | 14 | 90 | 1383 | 3180 |
| 72 | Rheumatology | 16 | 86 | 583 | 1546 |
| 73 | Mental Disorders | 7 | 85 | 2663 | 3686 |
| 74 | Biophysics | 9 | 82 | 4677 | 6305 |
| 74 | Leukemia | 4 | 82 | 1377 | 1487 |
| 76 | Mobile genetic elements | 1 | 76 | 248 | 107 |
| 76 | DNA | 1 | 76 | 1378 | 617 |
| 78 | Hemodynamics | 3 | 74 | 748 | 1027 |
| 79 | Psychology | 4 | 72 | 5627 | 5508 |
| 79 | Stem cells | 1 | 72 | 2958 | 2186 |
| 81 | Dietetics | 4 | 69 | 846 | 789 |
| 82 | Photonics | 5 | 68 | 1613 | 2131 |
| 82 | Food | 3 | 68 | 3968 | 4055 |
| 82 | infection | 8 | 68 | 1284 | 2338 |
| 82 | Spectrum analysis | 4 | 68 | 4570 | 4936 |
| 86 | Tropical Medicine | 1 | 66 | 3763 | 2142 |
| 87 | Genetics | 2 | 62 | 5659 | 5552 |
| 88 | Sports | 10 | 60 | 1333 | 1984 |
| 89 | Virology | 5 | 59 | 3147 | 4820 |
| 89 | Histocompatibility Testing | 7 | 59 | 428 | 726 |
| 91 | Materials | 1 | 58 | 8945 | 6597 |
| 91 | Optical materials | 1 | 58 | 4070 | 3310 |
| 91 | Thorax | 1 | 58 | 988 | 824 |
| 94 | Ecology | 2 | 57 | 8616 | 8721 |
| 95 | Infection control | 2 | 56 | 1095 | 1020 |
| 95 | pain | 2 | 56 | 2145 | 2042 |
| 97 | Medical innovations | 1 | 55 | 2196 | 2374 |
| 97 | drug development | 1 | 55 | 2308 | 2175 |
| 97 | Mental illness | 2 | 55 | 3117 | 3174 |
| 100 | Parasitic Diseases | 6 | 54 | 1925 | 2976 |
| 100 | Asia | 11 | 54 | 1634 | 2855 |
| 100 | Europe | 8 | 54 | 2521 | 3725 |
| 100 | Bones | 2 | 54 | 1402 | 1467 |
| 104 | Infections | 5 | 53 | 1186 | 2108 |
| 104 | Lipids | 2 | 53 | 2008 | 2224 |
| 106 | Nuclear Medicine | 4 | 52 | 1177 | 1384 |
| 106 | Amyotrophic Lateral Sclerosis | 2 | 52 | 404 | 422 |
| 106 | Melanoma | 2 | 52 | 341 | 409 |
| 106 | Frontotemporal lobar degeneration | 2 | 52 | 316 | 314 |
| 106 | Molecular Imaging | 3 | 52 | 860 | 1115 |
| 111 | Geriatric Psychiatry | 3 | 50 | 1374 | 1692 |
| 112 | calcification | 2 | 49 | 830 | 946 |
| 112 | genome | 1 | 49 | 3192 | 2804 |
| 114 | Audiology | 1 | 48 | 1483 | 1065 |
| 115 | Transplantation | 11 | 47 | 796 | 1987 |
| 116 | Environmental Health | 2 | 46 | 7694 | 7971 |
| 117 | diseases | 1 | 45 | 827 | 1050 |
| 117 | Disease | 1 | 45 | 839 | 1053 |
| 119 | Environmental Engineering | 1 | 43 | 7078 | 5702 |
| 119 | Environmental Policy | 1 | 43 | 6134 | 5283 |
| 119 | Environmental Law | 1 | 43 | 2268 | 2293 |
| 119 | environmental protection | 1 | 43 | 6538 | 5392 |
| 119 | Environmental monitoring | 1 | 43 | 6675 | 6040 |
| 124 | Neurobiology | 1 | 42 | 3200 | 3036 |
| 124 | Neurophysiology | 1 | 42 | 4908 | 4469 |
| 124 | Diagnostic microbiology | 3 | 42 | 1702 | 2830 |
| 127 | Immunopathology | 5 | 40 | 1391 | 2349 |
| 127 | personality | 1 | 40 | 2445 | 2132 |
| 127 | sports injuries | 5 | 40 | 461 | 652 |
| 130 | drug therapy | 7 | 38 | 2040 | 3859 |
| 131 | software | 3 | 36 | 1164 | 1754 |
| 132 | Hemophilia | 2 | 35 | 753 | 742 |
| 132 | Hospitals | 1 | 35 | 1583 | 1214 |
| 134 | Gerontology | 5 | 33 | 1885 | 2727 |
| 135 | Pharmaceutical Chemistry | 2 | 32 | 5472 | 6051 |
| 135 | preventive medicine | 2 | 32 | 2078 | 2558 |
| 137 | Ophthalmology | 2 | 28 | 2591 | 3032 |
| 137 | Psychosomatic Medicine | 1 | 28 | 1718 | 1724 |
| 137 | Dementia | 1 | 28 | 2651 | 1716 |
| 137 | Alzheimer's disease | 1 | 28 | 2719 | 1856 |
| 141 | Radiology | 10 | 26 | 1099 | 2497 |
| 141 | Chemotherapy | 6 | 26 | 1308 | 2845 |
| 141 | Kidney diseases | 2 | 26 | 1531 | 1855 |
| 144 | Nursing | 2 | 25 | 2922 | 2763 |
| 144 | Immunotherapy | 2 | 25 | 2853 | 3662 |
| 144 | disabilities | 2 | 25 | 1171 | 1452 |
| 144 | rehabilitation | 2 | 25 | 3356 | 3897 |
| 148 | Pediatric Dermatology | 2 | 24 | 708 | 805 |
| 148 | Child | 4 | 24 | 2831 | 4218 |
| 148 | Evidence-Based Medicine | 1 | 24 | 2733 | 2349 |
| 148 | Geriatric Oncology | 1 | 24 | 1283 | 1350 |
| 148 | Adolescent | 4 | 24 | 2399 | 3647 |
| 148 | Endocrine system | 9 | 24 | 524 | 642 |
| 154 | Biotechnology | 5 | 23 | 6271 | 9998 |
| 154 | Congenital heart disease | 4 | 23 | 62 | 60 |
| 154 | Cardiovascular diseases | 3 | 23 | 2092 | 2799 |
| 157 | Statistics | 1 | 22 | 4705 | 3694 |
| 157 | Signal Transduction | 1 | 22 | 2673 | 2923 |
| 157 | Antioxidants | 1 | 22 | 1539 | 1963 |
| 157 | Respiratory system | 1 | 22 | 1247 | 1357 |
| 157 | Biometrics | 1 | 22 | 2079 | 1857 |
| 157 | medical education | 2 | 22 | 3101 | 3251 |
| 157 | Oxidation-reduction | 1 | 22 | 1549 | 1995 |
| 164 | Chromosome mapping | 2 | 21 | 2882 | 4055 |
| 164 | Ultrasonography | 8 | 21 | 12 | 108 |
| 164 | gene mapping | 2 | 21 | 3140 | 4404 |
| 164 | Exercise | 6 | 21 | 1059 | 2086 |
| 168 | Pediatrics | 4 | 20 | 2964 | 5095 |
| 168 | Atherosclerosis | 2 | 20 | 256 | 518 |
| 170 | Medical Technology | 1 | 19 | 4054 | 3998 |
| 170 | Artificial Intelligence | 1 | 19 | 6461 | 5851 |
| 170 | Neural circuitry | 1 | 19 | 3555 | 3740 |
| 173 | Education | 1 | 18 | 7409 | 5442 |
| 173 | Orthopedic Surgery | 2 | 18 | 1310 | 1717 |
| 173 | Mental Health Services | 4 | 18 | 1342 | 2594 |
| 173 | Digestive system diseases | 1 | 18 | 1936 | 2117 |
| 177 | Cochlear Implants | 2 | 17 | 151 | 197 |
| 177 | Emergency Medicine | 4 | 17 | 1784 | 2964 |
| 177 | Bipolar Disorder | 1 | 17 | 734 | 900 |
| 180 | Clinical Psychology | 1 | 16 | 2740 | 3128 |
| 180 | gene therapy | 2 | 16 | 1758 | 2738 |
| 180 | Osteoporosis | 3 | 16 | 435 | 981 |
| 180 | Bone diseases | 3 | 16 | 599 | 1277 |
| 180 | Genetic therapy | 2 | 16 | 1895 | 2904 |
| 180 | Vaccines | 2 | 16 | 2891 | 4124 |
| 186 | Analytical Chemistry | 1 | 15 | 7222 | 7574 |
| 186 | liver | 2 | 15 | 496 | 796 |
| 188 | Microbial Ecology | 1 | 14 | 4172 | 5151 |
| 189 | Emergency Medical Services | 2 | 13 | 1295 | 1934 |
| 189 | Health Education | 2 | 13 | 3008 | 4237 |
| 189 | Patient education | 2 | 13 | 946 | 1749 |
| 189 | counseling | 2 | 13 | 1961 | 2815 |
| 189 | health services | 3 | 13 | 1337 | 2654 |
| 194 | Pharmacology | 2 | 12 | 7593 | 9920 |
| 194 | Medical Laboratory Science | 4 | 12 | 2318 | 4976 |
| 194 | Biomedical Engineering | 9 | 12 | 3975 | 9434 |
| 194 | Clinical Pharmacology | 1 | 12 | 2920 | 3403 |
| 194 | prostaglandins | 1 | 12 | 945 | 1236 |
| 194 | Evolution | 1 | 12 | 3549 | 4131 |
| 200 | Antiviral agents | 1 | 11 | 740 | 1046 |
| 200 | Primary health care | 4 | 11 | 2015 | 4253 |
| 202 | Optics | 4 | 10 | 5397 | 6963 |
| 202 | Immunogenetics | 1 | 10 | 1523 | 1937 |
| 204 | Urology | 4 | 9 | 1993 | 3862 |
| 204 | Physical Therapy | 1 | 9 | 2699 | 3270 |
| 204 | Health Services Research | 2 | 9 | 2822 | 4235 |
| 204 | epilepsy | 1 | 9 | 1962 | 2481 |
| 204 | behavioral medicine | 2 | 9 | 2045 | 3712 |
| 204 | Carcinogenesis | 1 | 9 | 2038 | 2827 |
| 204 | Molecular evolution | 1 | 9 | 2937 | 3846 |
| 204 | carcinogens | 1 | 9 | 2051 | 2821 |
| 204 | Therapeutics | 2 | 9 | 2775 | 4550 |
| 204 | mutagens | 1 | 9 | 1644 | 2343 |
| 204 | biological evolution | 1 | 9 | 3841 | 4897 |
| 204 | Spine | 1 | 9 | 1358 | 1808 |
| 204 | Behavior | 1 | 9 | 5850 | 7304 |
| 217 | health behavior | 1 | 8 | 2046 | 2727 |
| 217 | Health promotion | 1 | 8 | 3136 | 3906 |
| 217 | Antibodies | 1 | 8 | 1440 | 1881 |
| 217 | Antigens | 1 | 8 | 1835 | 2349 |
| 221 | Otolaryngology | 2 | 7 | 899 | 1543 |
| 221 | Cardiovascular Pharmacology | 1 | 7 | 680 | 1032 |
| 221 | Nutrition physiology | 1 | 7 | 1612 | 2144 |
| 221 | Social welfare | 1 | 7 | 1259 | 1618 |
| 221 | Nutritional support | 1 | 7 | 378 | 622 |
| 221 | Interferons | 1 | 7 | 678 | 1020 |
| 221 | cytokines | 1 | 7 | 2603 | 3472 |
| 221 | Social work | 1 | 7 | 2976 | 3282 |
| 221 | Cytokine | 1 | 7 | 917 | 1425 |
| 230 | Neurology | 11 | 6 | 3883 | 10032 |
| 230 | Health Services Administration | 1 | 6 | 2546 | 3302 |
| 230 | Andrology | 1 | 6 | 1362 | 1878 |
| 230 | Pharmacogenetics | 1 | 6 | 2193 | 3001 |
| 230 | Immunohematology | 1 | 6 | 328 | 292 |
| 230 | Developmental Neurobiology | 1 | 6 | 1206 | 1582 |
| 230 | Biomarkers | 1 | 6 | 1072 | 1566 |
| 230 | Developmental Disabilities | 1 | 6 | 1921 | 2677 |
| 230 | Blood group antigens | 1 | 6 | 219 | 214 |
| 230 | management | 1 | 6 | 6061 | 6884 |
| 230 | Neurodevelopmental disorders | 1 | 6 | 145 | 166 |
| 230 | biochemical markers | 1 | 6 | 1842 | 2638 |
| 230 | health planning | 1 | 6 | 4302 | 5397 |
| 230 | planning | 1 | 6 | 1614 | 2068 |
| 230 | Gastrointestinal diseases | 1 | 6 | 1564 | 2105 |
| 245 | Nephrology | 1 | 5 | 1174 | 1677 |
| 245 | Signal Processing | 1 | 5 | 3588 | 4392 |
| 245 | Radiation Protection | 1 | 5 | 1536 | 1714 |
| 245 | Health Physics | 1 | 5 | 573 | 707 |
| 245 | radiation monitoring | 1 | 5 | 1386 | 1600 |
| 245 | X-rays | 1 | 5 | 1499 | 1843 |
| 245 | lasers | 2 | 5 | 2862 | 3863 |
| 245 | Chronic diseases | 1 | 5 | 1440 | 2172 |
| 253 | Pharmacy | 1 | 4 | 4157 | 5463 |
| 253 | Industrial Safety | 1 | 4 | 2544 | 3259 |
| 253 | Microcirculation | 1 | 4 | 1016 | 1561 |
| 253 | Autoantibodies | 1 | 4 | 1223 | 1892 |
| 253 | Autoimmunity | 1 | 4 | 1501 | 2277 |
| 253 | Pharmacy management | 1 | 4 | 707 | 930 |
| 253 | psychopathology | 1 | 4 | 628 | 932 |
| 253 | Blood vessels | 1 | 4 | 846 | 1284 |
| 253 | Safety management | 1 | 4 | 1522 | 2054 |
| 253 | Autoimmune diseases | 1 | 4 | 1371 | 2111 |
| 263 | Data Mining | 1 | 3 | 3761 | 4908 |
| 263 | Biopharmaceutics | 1 | 3 | 2479 | 3477 |
| 263 | Emergency Nursing | 3 | 3 | 167 | 683 |
| 263 | Radiography | 1 | 3 | 1324 | 1935 |
| 263 | Diagnosis | 1 | 3 | 1425 | 2176 |
| 263 | data collection | 1 | 3 | 2693 | 3513 |
| 263 | drugs | 1 | 3 | 4357 | 5968 |
| 270 | Pathology | 2 | 2 | 3576 | 6174 |
| 270 | Neurosurgery | 4 | 2 | 1283 | 3033 |
| 270 | Palliative Care | 2 | 2 | 1423 | 2855 |
| 270 | industrial hygiene | 1 | 2 | 2638 | 3504 |
| 270 | Thrombosis | 2 | 2 | 1663 | 3056 |
| 270 | risk factors | 1 | 2 | 1506 | 2128 |
| 270 | Lymphatic system | 1 | 2 | 241 | 460 |
| 270 | Neuromuscular diseases | 2 | 2 | 1005 | 2114 |
| 270 | vascular diseases | 1 | 2 | 1441 | 2129 |
| 270 | Reproduction | 5 | 2 | 2302 | 5758 |
| 270 | Muscles | 2 | 2 | 1329 | 2637 |
| 270 | Developing countries | 1 | 2 | 4935 | 6386 |
| 270 | Psychophysiology | 1 | 2 | 4897 | 6506 |
| 283 | Bioengineering | 4 | 1 | 4833 | 10139 |
| 283 | Global Health | 2 | 1 | 1809 | 3931 |
| 283 | Genetic engineering | 4 | 1 | 2430 | 5892 |
| 283 | Systems Biology | 1 | 1 | 3329 | 4816 |
| 283 | hospice care | 1 | 1 | 1284 | 2144 |
| 283 | Learning disabilities | 1 | 1 | 1535 | 2436 |
| 283 | Health | 1 | 1 | 4833 | 7029 |
| 283 | Chromatography | 1 | 1 | 3126 | 4585 |
| 283 | Hearing Aids | 1 | 1 | 455 | 714 |
| 283 | Parasitology | 1 | 1 | 4246 | 5774 |
| 283 | Communication in medicine | 1 | 1 | 1085 | 1873 |
| 283 | Communication | 1 | 1 | 3905 | 5419 |
| 283 | Bacteria | 1 | 1 | 815 | 1392 |
| 283 | Bacterial infections | 1 | 1 | 1958 | 3193 |
| 283 | Hearing | 1 | 1 | 1301 | 2032 |
| 283 | family violence | 1 | 1 | 834 | 1487 |
| 283 | child abuse | 1 | 1 | 1643 | 2600 |
| 283 | Post-traumatic stress disorder | 1 | 1 | 1516 | 2398 |
| 283 | Chromatographic analysis | 1 | 1 | 3572 | 5044 |
| 283 | Intellectual disability | 1 | 1 | 1730 | 2664 |
| 283 | violence | 1 | 1 | 1821 | 2932 |
| 283 | Coronary heart disease | 4 | 1 | 207 | 874 |
| 305 | Clinical Laboratory Science | 1 | 0 | 633 | 1181 |
| 305 | Pediatric Endocrinology | 1 | 0 | 789 | 1317 |
| 305 | Geriatric Pharmacology | 1 | 0 | 710 | 1361 |
| 305 | Pediatric Neurology | 1 | 0 | 1998 | 3051 |
| 305 | General Surgery | 1 | 0 | 1563 | 2426 |
| 305 | Microbial Genetics | 1 | 0 | 767 | 1354 |
| 305 | Data Science | 1 | 0 | 374 | 362 |
| 305 | Artificial Organs | 1 | 0 | 1398 | 2119 |
| 305 | Lymphoma | 1 | 0 | 1366 | 1656 |
| 305 | Cardiac electrophysiology | 1 | 0 | 530 | 925 |
| 305 | Multiple Myeloma | 1 | 0 | 1354 | 1632 |
| 305 | Feasibility studies | 1 | 0 | 677 | 1281 |
| 305 | Exercise therapy | 1 | 0 | 968 | 1569 |
| 305 | phytopathogenic bacteria | 1 | 0 | 519 | 898 |
| 305 | Mycology | 1 | 0 | 2969 | 4270 |
| 305 | Personality Disorders | 1 | 0 | 555 | 952 |
| 305 | mycoses | 1 | 0 | 1735 | 2768 |
| 305 | Elderly | 1 | 0 | 2538 | 3193 |
| 305 | older people | 1 | 0 | 3292 | 4450 |
| 305 | Electrophysiology | 1 | 0 | 2250 | 3362 |
| 305 | Metabolic disorders in children | 1 | 0 | 725 | 1230 |
| 305 | Quality of life | 1 | 0 | 3133 | 4987 |
| 305 | Nervous system | 1 | 0 | 4603 | 6624 |
| 305 | arrhythmia | 1 | 0 | 530 | 925 |
| 305 | plant molecular biology | 1 | 0 | 2731 | 3884 |
| 305 | cardiac catheterization | 1 | 0 | 1533 | 2213 |
| 305 | Plant diseases | 1 | 0 | 3362 | 4702 |
| 305 | Cell death | 1 | 0 | 2231 | 3175 |
| 305 | Population | 1 | 0 | 2259 | 3475 |
