| 1 | Medicine | 265 | 12.5K | 1309 | 1223 |
| 2 | Neurology | 175 | 9.9K | 941 | 865 |
| 3 | Psychiatry | 190 | 7.0K | 473 | 602 |
| 4 | Hematology | 353 | 6.9K | 355 | 475 |
| 5 | Epidemiology | 77 | 6.3K | 744 | 342 |
| 6 | Science | 143 | 6.0K | 2036 | 2686 |
| 7 | Surgery | 73 | 4.8K | 381 | 452 |
| 8 | Chronic diseases | 50 | 4.8K | 96 | 87 |
| 9 | Orthopedics | 98 | 4.8K | 159 | 101 |
| 10 | Mental Disorders | 137 | 4.5K | 344 | 499 |
| 11 | Biology | 65 | 4.2K | 3166 | 3109 |
| 12 | Molecular Biology | 62 | 4.1K | 2687 | 2159 |
| 13 | Research | 154 | 3.9K | 1515 | 1794 |
| 14 | Biochemistry | 99 | 3.9K | 2490 | 2269 |
| 15 | Mental illness | 109 | 3.8K | 198 | 331 |
| 16 | Health Services Research | 84 | 3.7K | 182 | 120 |
| 17 | Immunology | 47 | 3.7K | 1336 | 1022 |
| 18 | Research Design | 33 | 3.6K | 268 | 110 |
| 19 | Obstetrics | 161 | 3.4K | 262 | 305 |
| 20 | Cancer | 70 | 3.4K | 968 | 943 |
| 21 | Biophysics | 185 | 3.3K | 830 | 1211 |
| 22 | Oncology | 48 | 3.3K | 496 | 708 |
| 23 | Public Health | 62 | 3.2K | 1426 | 1027 |
| 24 | Physical Therapy | 19 | 2.7K | 519 | 181 |
| 25 | Psychology | 59 | 2.7K | 1204 | 923 |
| 26 | Neurophysiology | 25 | 2.5K | 1350 | 899 |
| 27 | Medical Physics | 159 | 2.3K | 134 | 274 |
| 28 | Chemistry | 19 | 2.2K | 5823 | 3445 |
| 29 | Microbiology | 29 | 2.1K | 3128 | 2343 |
| 30 | Physics | 29 | 2.1K | 4869 | 4400 |
| 31 | Geriatrics | 55 | 2.0K | 718 | 575 |
| 32 | Medical Oncology | 145 | 1.9K | 235 | 475 |
| 33 | Endocrinology | 36 | 1.8K | 1164 | 1151 |
| 34 | Radiobiology | 143 | 1.8K | 200 | 349 |
| 35 | Environmental Health | 23 | 1.8K | 2513 | 1611 |
| 36 | Orthopedic Surgery | 34 | 1.8K | 151 | 72 |
| 37 | Pharmacology | 63 | 1.7K | 1586 | 1731 |
| 38 | Nervous system | 21 | 1.7K | 1124 | 836 |
| 39 | medical education | 59 | 1.6K | 332 | 305 |
| 40 | Vaccines | 23 | 1.6K | 740 | 393 |
| 41 | Pediatric Neurology | 11 | 1.5K | 684 | 485 |
| 42 | Psychopharmacology | 34 | 1.5K | 511 | 526 |
| 43 | Psychophysiology | 32 | 1.5K | 1113 | 1001 |
| 44 | Emergency Medicine | 33 | 1.5K | 471 | 234 |
| 45 | Asthma | 7 | 1.5K | 509 | 34 |
| 46 | Allergy | 10 | 1.5K | 900 | 605 |
| 47 | drug therapy | 42 | 1.5K | 726 | 653 |
| 48 | Allergies | 6 | 1.4K | 62 | 14 |
| 49 | Cytology | 25 | 1.4K | 2142 | 2128 |
| 50 | Cell Biology | 26 | 1.4K | 1984 | 2195 |
| 51 | Medical genetics | 25 | 1.4K | 1448 | 1427 |
| 52 | Thrombosis | 84 | 1.4K | 76 | 280 |
| 53 | Diabetes mellitus | 25 | 1.3K | 896 | 943 |
| 54 | Diabetes | 28 | 1.3K | 905 | 982 |
| 55 | Hemostasis | 82 | 1.3K | 24 | 64 |
| 56 | Critical Care | 46 | 1.3K | 396 | 753 |
| 57 | Critical Care Medicine | 45 | 1.3K | 406 | 749 |
| 58 | Environment | 15 | 1.3K | 2932 | 2462 |
| 59 | Kidney diseases | 94 | 1.3K | 63 | 187 |
| 60 | psychotherapy | 34 | 1.3K | 370 | 378 |
| 61 | Cheminformatics | 1 | 1.2K | 789 | 106 |
| 61 | Informatics | 1 | 1.2K | 1736 | 139 |
| 63 | Metabolic diseases | 23 | 1.2K | 1158 | 1199 |
| 64 | Randomized Controlled Trials | 44 | 1.2K | 166 | 100 |
| 65 | Nephrology | 83 | 1.2K | 50 | 161 |
| 66 | Developmental Biology | 17 | 1.2K | 1060 | 960 |
| 67 | Brain | 10 | 1.1K | 1924 | 1081 |
| 68 | United States | 38 | 1.1K | 1715 | 1468 |
| 68 | pain | 32 | 1.1K | 401 | 471 |
| 70 | Natural history | 1 | 1.1K | 7708 | 3805 |
| 71 | Reproduction | 32 | 1.1K | 819 | 734 |
| 72 | Palliative Care | 34 | 1.0K | 154 | 110 |
| 73 | Aging | 22 | 1.0K | 1348 | 938 |
| 74 | Primary health care | 38 | 1.0K | 397 | 355 |
| 75 | Pediatrics | 18 | 1.0K | 1371 | 1148 |
| 76 | blood transfusion | 48 | 1.0K | 124 | 149 |
| 77 | Metabolism | 29 | 1.0K | 1233 | 1440 |
| 78 | rehabilitation | 38 | 995 | 528 | 616 |
| 79 | Clinical Chemistry | 25 | 981 | 1258 | 1175 |
| 80 | Eating Disorders | 21 | 967 | 302 | 218 |
| 80 | Feeding and Eating Disorders | 21 | 967 | 281 | 207 |
| 82 | Radiology | 34 | 965 | 445 | 290 |
| 83 | Chemotherapy | 29 | 964 | 430 | 376 |
| 84 | Physiology | 25 | 950 | 1994 | 1891 |
| 85 | Transplantation | 16 | 931 | 679 | 579 |
| 86 | Human genetics | 10 | 908 | 1741 | 2317 |
| 87 | Pathology | 32 | 879 | 876 | 1122 |
| 88 | drugs | 18 | 813 | 1011 | 680 |
| 89 | Embryology | 11 | 788 | 1084 | 875 |
| 90 | Neuropsychology | 15 | 773 | 1267 | 940 |
| 91 | Clinical Biochemistry | 40 | 767 | 252 | 386 |
| 92 | Neurochemistry | 16 | 766 | 1346 | 1198 |
| 93 | Behavior | 25 | 763 | 1293 | 1636 |
| 94 | Hypertension | 24 | 759 | 700 | 1080 |
| 95 | counseling | 17 | 740 | 564 | 383 |
| 96 | Gerontology | 12 | 731 | 1163 | 569 |
| 97 | Urology | 33 | 725 | 718 | 897 |
| 98 | Infertility | 18 | 702 | 536 | 526 |
| 99 | Nutrition | 23 | 699 | 2069 | 2160 |
| 100 | Stem cells | 16 | 697 | 872 | 782 |
| 101 | fertility | 17 | 677 | 593 | 553 |
| 102 | Family | 9 | 675 | 578 | 254 |
| 103 | Dermatology | 30 | 673 | 672 | 765 |
| 104 | Toxicology | 14 | 672 | 3029 | 2428 |
| 105 | Obesity | 29 | 671 | 736 | 1106 |
| 106 | Neuropsychiatry | 9 | 669 | 605 | 315 |
| 107 | Pharmaceutical Chemistry | 13 | 649 | 2574 | 2084 |
| 108 | Dialysis | 63 | 629 | 15 | 18 |
| 108 | behavioral medicine | 13 | 629 | 635 | 591 |
| 108 | Kidney transplantation | 63 | 629 | 14 | 18 |
| 111 | Genetics | 10 | 627 | 3040 | 2697 |
| 111 | Ecology | 7 | 627 | 5528 | 4001 |
| 111 | Environmental Engineering | 7 | 627 | 3236 | 1878 |
| 111 | Environmental Policy | 7 | 627 | 2597 | 1747 |
| 111 | Environmental Law | 7 | 627 | 816 | 669 |
| 111 | environmental protection | 7 | 627 | 2916 | 1570 |
| 111 | Environmental monitoring | 7 | 627 | 3225 | 2035 |
| 111 | arthritis | 16 | 627 | 689 | 817 |
| 119 | Cell differentiation | 6 | 615 | 1623 | 1245 |
| 120 | Anatomy | 6 | 595 | 1829 | 980 |
| 121 | Geriatric Oncology | 18 | 587 | 173 | 187 |
| 122 | Health Policy | 24 | 578 | 853 | 957 |
| 123 | Sociology | 6 | 573 | 2628 | 1156 |
| 124 | Diagnostic Imaging | 19 | 519 | 884 | 939 |
| 125 | sex crimes | 11 | 515 | 277 | 153 |
| 126 | Medical Anthropology | 5 | 505 | 1201 | 735 |
| 127 | Immunopathology | 7 | 502 | 1174 | 747 |
| 128 | Telemedicine | 12 | 500 | 110 | 87 |
| 128 | Homeostasis | 1 | 500 | 1016 | 747 |
| 128 | Cell metabolism | 1 | 500 | 1526 | 775 |
| 131 | Environmental Toxicology | 5 | 494 | 2340 | 1405 |
| 132 | Health | 30 | 490 | 704 | 1055 |
| 133 | Cardiovascular system | 11 | 488 | 1127 | 1404 |
| 134 | Diagnostic microbiology | 5 | 481 | 1358 | 1136 |
| 135 | Membranes | 3 | 464 | 2122 | 1116 |
| 136 | Multiple sclerosis | 13 | 438 | 249 | 99 |
| 137 | Child | 22 | 430 | 1097 | 1208 |
| 138 | Marriage | 6 | 427 | 351 | 156 |
| 138 | Family Therapy | 6 | 427 | 568 | 231 |
| 138 | Marriage counseling | 6 | 427 | 211 | 110 |
| 141 | Rheumatology | 8 | 425 | 978 | 822 |
| 142 | Medical Microbiology | 10 | 424 | 1702 | 1826 |
| 142 | Virology | 8 | 424 | 2570 | 2838 |
| 144 | Schizophrenia | 14 | 420 | 597 | 718 |
| 145 | Therapeutics | 15 | 418 | 982 | 1287 |
| 146 | human behavior | 10 | 413 | 1582 | 1843 |
| 146 | United Kingdom | 7 | 413 | 1349 | 1047 |
| 148 | Holistic Health | 9 | 412 | 158 | 77 |
| 148 | allied health | 9 | 412 | 87 | 55 |
| 150 | Mental Health | 11 | 411 | 961 | 646 |
| 150 | Diet | 6 | 411 | 1958 | 1524 |
| 152 | Nursing | 13 | 410 | 971 | 575 |
| 152 | Radiography | 15 | 410 | 310 | 362 |
| 154 | Growth | 3 | 408 | 1480 | 1044 |
| 155 | Otolaryngology | 22 | 405 | 198 | 280 |
| 155 | Psychoneuroimmunology | 4 | 405 | 699 | 432 |
| 155 | Neuroimmunology | 4 | 405 | 792 | 481 |
| 158 | drug resistance | 6 | 404 | 510 | 264 |
| 159 | Lipids | 6 | 401 | 1182 | 878 |
| 160 | health planning | 10 | 395 | 1309 | 809 |
| 161 | X-rays | 10 | 388 | 341 | 153 |
| 162 | Infection control | 12 | 375 | 287 | 273 |
| 163 | Animal Behavior | 7 | 372 | 1541 | 1400 |
| 164 | Geriatric Psychiatry | 11 | 367 | 629 | 608 |
| 165 | Clinical Psychology | 6 | 366 | 1284 | 1079 |
| 165 | Ethology | 6 | 366 | 1309 | 1208 |
| 167 | Bipolar Disorder | 9 | 365 | 231 | 250 |
| 168 | Leukemia | 21 | 358 | 607 | 957 |
| 169 | Neuropharmacology | 5 | 346 | 482 | 293 |
| 170 | preventive medicine | 15 | 341 | 631 | 885 |
| 171 | Respiration | 4 | 334 | 1705 | 1077 |
| 172 | Neurosurgery | 7 | 324 | 979 | 770 |
| 173 | Sleep Disorders | 14 | 323 | 992 | 1041 |
| 173 | pain management | 18 | 323 | 187 | 290 |
| 175 | Synaptic Transmission | 3 | 314 | 626 | 274 |
| 176 | Brain damage | 8 | 308 | 246 | 221 |
| 177 | Health Education | 14 | 306 | 985 | 1015 |
| 178 | Psychosomatic Medicine | 24 | 300 | 252 | 619 |
| 179 | Biocompatible Materials | 11 | 297 | 2522 | 3195 |
| 180 | Nuclear Medicine | 12 | 295 | 641 | 714 |
| 181 | Parenteral nutrition | 7 | 292 | 894 | 840 |
| 182 | Thorax | 9 | 288 | 289 | 372 |
| 183 | Neurobiology | 6 | 285 | 1669 | 1707 |
| 184 | Biotechnology | 1 | 284 | 10151 | 5128 |
| 185 | Sleep | 7 | 282 | 1461 | 1133 |
| 186 | Hemodynamics | 6 | 278 | 539 | 605 |
| 187 | alcoholism | 13 | 276 | 833 | 1068 |
| 188 | Clinical Pharmacology | 5 | 274 | 1494 | 990 |
| 189 | Evidence-Based Medicine | 6 | 273 | 1017 | 530 |
| 189 | drug abuse | 8 | 273 | 401 | 316 |
| 191 | Artificial Intelligence | 4 | 268 | 3913 | 2269 |
| 192 | Women's health | 10 | 266 | 762 | 736 |
| 193 | Alternative Medicine | 7 | 258 | 1406 | 1106 |
| 193 | complementary therapies | 7 | 258 | 1545 | 1119 |
| 195 | occupational diseases | 3 | 255 | 1201 | 628 |
| 196 | Mental Health Services | 5 | 254 | 1236 | 725 |
| 197 | Child Development | 4 | 251 | 2128 | 1514 |
| 198 | families | 3 | 248 | 1009 | 378 |
| 199 | Patient education | 8 | 241 | 407 | 498 |
| 200 | Inflammation | 4 | 237 | 1398 | 1114 |
| 201 | Oncogenes | 5 | 236 | 1206 | 1485 |
| 202 | Developmental Disabilities | 1 | 233 | 1939 | 831 |
| 203 | cell physiology | 9 | 231 | 1093 | 1602 |
| 204 | Genetic therapy | 7 | 230 | 1064 | 1230 |
| 205 | Genomics | 9 | 229 | 2619 | 2971 |
| 206 | government | 15 | 227 | 270 | 326 |
| 207 | gene therapy | 6 | 220 | 1040 | 1175 |
| 207 | Child psychology | 9 | 220 | 1010 | 1360 |
| 209 | Cytogenetics | 2 | 210 | 2397 | 1810 |
| 210 | harm reduction | 6 | 209 | 121 | 97 |
| 211 | Long-Term Care | 7 | 208 | 386 | 501 |
| 211 | Long-term care facilities | 7 | 208 | 383 | 501 |
| 211 | Cardiovascular diseases | 5 | 208 | 1644 | 1204 |
| 214 | Travel | 15 | 206 | 288 | 425 |
| 215 | community participation | 7 | 205 | 56 | 48 |
| 215 | Faculty | 7 | 205 | 56 | 48 |
| 217 | Occupational Therapy | 6 | 204 | 851 | 386 |
| 218 | Visual Perception | 4 | 202 | 2060 | 1579 |
| 218 | Memory | 4 | 202 | 2215 | 1763 |
| 218 | Attention | 4 | 202 | 2152 | 1629 |
| 218 | Perception | 4 | 202 | 2284 | 1755 |
| 222 | drug addiction | 10 | 201 | 746 | 1057 |
| 223 | Biomedical Engineering | 11 | 200 | 3494 | 4172 |
| 224 | personality | 4 | 198 | 1403 | 1232 |
| 224 | feeding behavior | 6 | 198 | 612 | 634 |
| 226 | Anxiety Disorders | 6 | 197 | 404 | 648 |
| 226 | Anxiety | 6 | 197 | 405 | 653 |
| 228 | infection | 6 | 196 | 1551 | 1620 |
| 228 | Antigens | 5 | 196 | 904 | 770 |
| 230 | Adolescent | 18 | 190 | 964 | 1631 |
| 231 | Substance Abuse | 9 | 189 | 1004 | 1119 |
| 231 | Cell death | 2 | 189 | 1784 | 1442 |
| 233 | rare diseases | 3 | 188 | 854 | 582 |
| 234 | hospice care | 10 | 186 | 271 | 265 |
| 235 | health services accessibility | 3 | 185 | 1211 | 646 |
| 235 | Socioeconomic Factors | 3 | 185 | 940 | 532 |
| 237 | older people | 8 | 180 | 1218 | 916 |
| 238 | environmental exposure | 3 | 179 | 2457 | 1736 |
| 239 | Infections | 3 | 178 | 1562 | 1404 |
| 239 | Quality of life | 6 | 178 | 1258 | 1397 |
| 241 | Pharmacogenetics | 4 | 176 | 1208 | 1120 |
| 242 | Spine | 8 | 174 | 530 | 792 |
| 243 | pollutants | 1 | 173 | 3527 | 1869 |
| 243 | Environmental pollutants | 1 | 173 | 4162 | 2143 |
| 243 | environmental pollution | 1 | 173 | 7300 | 4470 |
| 243 | viruses | 4 | 173 | 1682 | 1823 |
| 243 | Pollution | 1 | 173 | 8671 | 5551 |
| 248 | Medical Laboratory Science | 4 | 170 | 2297 | 2037 |
| 248 | Antibodies | 4 | 170 | 762 | 631 |
| 250 | Parasitic Diseases | 2 | 169 | 3135 | 1962 |
| 251 | Ophthalmology | 8 | 166 | 1424 | 1642 |
| 252 | Neuromuscular diseases | 17 | 159 | 259 | 671 |
| 252 | Muscles | 17 | 159 | 337 | 994 |
| 252 | Liver diseases | 7 | 159 | 1303 | 1944 |
| 255 | Biomechanics | 9 | 158 | 941 | 1270 |
| 256 | Clinical Trials | 7 | 157 | 389 | 443 |
| 256 | Immunity | 4 | 157 | 2214 | 2750 |
| 258 | Emergency Medical Services | 7 | 156 | 576 | 509 |
| 259 | Medical Technology | 11 | 154 | 1006 | 1634 |
| 259 | Library Science | 2 | 154 | 1932 | 397 |
| 259 | biological factors | 7 | 154 | 1529 | 1693 |
| 262 | Immunotherapy | 5 | 153 | 1893 | 2218 |
| 263 | General Surgery | 6 | 151 | 641 | 542 |
| 263 | North America | 6 | 151 | 715 | 613 |
| 263 | health services | 7 | 151 | 820 | 852 |
| 266 | disabilities | 10 | 145 | 379 | 603 |
| 267 | Pediatric Nursing | 2 | 143 | 731 | 260 |
| 267 | Obstetric Nursing | 2 | 143 | 478 | 155 |
| 267 | Smoking | 7 | 143 | 575 | 810 |
| 270 | risk factors | 3 | 141 | 921 | 734 |
| 270 | Europe | 4 | 141 | 3713 | 2623 |
| 272 | Lymphoma | 18 | 138 | 297 | 224 |
| 272 | Multiple Myeloma | 18 | 138 | 292 | 209 |
| 274 | Depression | 4 | 137 | 340 | 568 |
| 275 | proteins | 4 | 136 | 2402 | 2170 |
| 276 | Nanotechnology | 2 | 135 | 6512 | 5065 |
| 276 | nanoscience | 2 | 135 | 3937 | 3107 |
| 278 | Exercise therapy | 3 | 134 | 462 | 201 |
| 278 | protein | 3 | 134 | 1573 | 1266 |
| 280 | Herbal medicine | 1 | 132 | 1534 | 797 |
| 281 | health behavior | 5 | 129 | 915 | 990 |
| 281 | Vaccination | 2 | 129 | 415 | 266 |
| 281 | Pregnancy | 6 | 129 | 686 | 777 |
| 284 | Dietetics | 2 | 127 | 1242 | 586 |
| 284 | Immunohistochemistry | 14 | 127 | 32 | 110 |
| 284 | Drug delivery systems | 1 | 127 | 2888 | 1773 |
| 284 | Alzheimer's disease | 11 | 127 | 1011 | 1259 |
| 288 | Hospitals | 9 | 126 | 447 | 652 |
| 289 | Forensic Psychology | 3 | 123 | 469 | 300 |
| 289 | Forensic Psychiatry | 3 | 123 | 685 | 463 |
| 291 | Body Image | 2 | 121 | 302 | 248 |
| 291 | Parkinson's disease | 1 | 121 | 541 | 237 |
| 293 | Clinical Immunology | 8 | 117 | 1033 | 1507 |
| 294 | Carcinogenesis | 2 | 116 | 1612 | 1408 |
| 295 | air quality management | 2 | 114 | 842 | 555 |
| 295 | Personality Disorders | 1 | 114 | 576 | 311 |
| 295 | Electrophysiology | 3 | 114 | 1509 | 1039 |
| 295 | indoor air pollution | 2 | 114 | 604 | 415 |
| 295 | Ventilation | 2 | 114 | 816 | 483 |
| 295 | Sick building syndrome | 2 | 114 | 604 | 415 |
| 301 | Radiotherapy | 3 | 112 | 537 | 251 |
| 302 | Speech Disorders | 5 | 111 | 955 | 1001 |
| 303 | locomotion | 5 | 110 | 628 | 705 |
| 303 | posture | 5 | 110 | 628 | 705 |
| 303 | gait | 5 | 110 | 628 | 705 |
| 303 | walking | 5 | 110 | 628 | 705 |
| 307 | Social Sciences | 2 | 109 | 5522 | 2723 |
| 307 | violence | 2 | 109 | 1393 | 968 |
| 309 | Technology | 2 | 107 | 6361 | 4104 |
| 309 | Suicide | 4 | 107 | 549 | 547 |
| 311 | Biometrics | 2 | 106 | 1641 | 1104 |
| 312 | Hippocampus | 2 | 103 | 451 | 487 |
| 313 | Cost control | 1 | 101 | 386 | 126 |
| 314 | musculoskeletal system | 1 | 100 | 353 | 173 |
| 315 | biological evolution | 2 | 93 | 3115 | 2985 |
| 316 | Education | 5 | 92 | 3858 | 3083 |
| 316 | Ergonomics | 9 | 92 | 691 | 972 |
| 316 | Decision making | 6 | 92 | 1180 | 1588 |
| 319 | Drug design | 2 | 91 | 2651 | 2173 |
| 319 | Crisis Intervention | 3 | 91 | 181 | 184 |
| 319 | Australia | 2 | 91 | 3052 | 1848 |
| 322 | Histochemistry | 4 | 90 | 1165 | 1230 |
| 322 | Physical fitness | 2 | 90 | 1550 | 1216 |
| 324 | Personality Assessment | 3 | 89 | 648 | 738 |
| 325 | Health Services Administration | 20 | 88 | 313 | 1317 |
| 325 | Communication | 4 | 88 | 2136 | 1871 |
| 327 | Metastasis | 1 | 86 | 501 | 507 |
| 328 | Proteomics | 5 | 85 | 1100 | 1741 |
| 329 | Signal Transduction | 3 | 84 | 1793 | 2144 |
| 329 | Autoimmunity | 2 | 84 | 1182 | 1263 |
| 331 | Gastrointestinal diseases | 6 | 83 | 600 | 794 |
| 332 | Adolescent Psychology | 2 | 82 | 1269 | 1030 |
| 332 | histological techniques | 3 | 82 | 871 | 1183 |
| 332 | Flow cytometry | 2 | 82 | 696 | 582 |
| 335 | Digestive system diseases | 7 | 81 | 818 | 1350 |
| 336 | Post-traumatic stress disorder | 2 | 80 | 1146 | 1037 |
| 337 | Hormones | 2 | 79 | 2005 | 1923 |
| 338 | Molecular Imaging | 1 | 78 | 1378 | 1072 |
| 339 | child abuse | 1 | 75 | 1708 | 1211 |
| 340 | Medical Ethics | 9 | 74 | 689 | 1116 |
| 341 | brain mapping | 1 | 73 | 1273 | 1130 |
| 342 | chronic disease | 2 | 71 | 580 | 507 |
| 343 | Health insurance | 2 | 70 | 723 | 647 |
| 343 | Brachytherapy | 13 | 70 | 128 | 222 |
| 345 | Social work | 3 | 68 | 1820 | 1434 |
| 345 | tomography | 6 | 68 | 294 | 465 |
| 347 | Andrology | 2 | 67 | 1034 | 896 |
| 347 | Immunogenetics | 2 | 67 | 1183 | 1093 |
| 349 | Cybernetics | 2 | 65 | 1934 | 1628 |
| 349 | Social Psychology | 4 | 65 | 2170 | 2759 |
| 351 | Counseling Psychology | 1 | 64 | 474 | 331 |
| 351 | Pharmacogenomics | 2 | 64 | 531 | 591 |
| 351 | anesthesia | 6 | 64 | 474 | 498 |
| 354 | Proteome | 3 | 63 | 1565 | 2119 |
| 355 | Cytoskeleton | 3 | 62 | 347 | 483 |
| 355 | scientific societies | 3 | 62 | 1050 | 1246 |
| 357 | Nuclear Physics | 3 | 61 | 4546 | 4180 |
| 357 | peer review | 2 | 61 | 117 | 66 |
| 357 | scholarly publishing | 2 | 61 | 194 | 139 |
| 357 | Statistical physics | 2 | 61 | 4643 | 3912 |
| 361 | Feasibility studies | 12 | 60 | 96 | 204 |
| 362 | Molecular Genetics | 2 | 58 | 3011 | 3336 |
| 362 | embryonic development | 2 | 58 | 666 | 715 |
| 362 | transport vesicles | 1 | 58 | 573 | 779 |
| 362 | Drug discovery | 1 | 58 | 661 | 451 |
| 366 | Dementia | 10 | 57 | 1050 | 1528 |
| 367 | Global Health | 2 | 55 | 1812 | 1375 |
| 367 | Antiviral agents | 2 | 55 | 568 | 607 |
| 367 | drug evaluation | 2 | 55 | 2069 | 2059 |
| 370 | Cognitive Therapy | 4 | 54 | 610 | 900 |
| 370 | cell interaction | 1 | 54 | 2344 | 2088 |
| 370 | Microscopy | 1 | 54 | 3363 | 1999 |
| 373 | Enteral nutrition | 4 | 53 | 1019 | 1659 |
| 373 | drug development | 4 | 53 | 1152 | 2437 |
| 375 | Sports Medicine | 7 | 52 | 2177 | 3079 |
| 375 | Health promotion | 6 | 52 | 1331 | 2351 |
| 375 | Immune system | 1 | 52 | 2145 | 2089 |
| 378 | Sexual health | 9 | 50 | 489 | 1024 |
| 378 | Qualitative Research | 2 | 50 | 712 | 646 |
| 378 | Bacterial infections | 4 | 50 | 981 | 1889 |
| 378 | liver | 2 | 50 | 511 | 536 |
| 382 | Lung Transplantation | 2 | 49 | 974 | 827 |
| 382 | Heart transplantation | 2 | 49 | 974 | 827 |
| 382 | Malaria | 3 | 49 | 936 | 1259 |
| 385 | Opioids | 1 | 48 | 200 | 69 |
| 385 | sex differences | 1 | 48 | 353 | 304 |
| 385 | traffic safety | 2 | 48 | 476 | 445 |
| 388 | Bioethics | 5 | 47 | 805 | 1151 |
| 388 | preimplantation genetic diagnosis | 3 | 47 | 590 | 783 |
| 388 | embryo transfer | 3 | 47 | 613 | 809 |
| 388 | Host-parasite interactions | 2 | 47 | 1941 | 2759 |
| 388 | Virulence | 2 | 47 | 1762 | 2617 |
| 393 | Mathematics | 4 | 46 | 6263 | 6037 |
| 393 | Endocrine system | 5 | 46 | 858 | 531 |
| 395 | Genetic disorders | 2 | 45 | 823 | 977 |
| 395 | monitoring | 4 | 45 | 267 | 381 |
| 397 | Neonatal Nursing | 3 | 44 | 150 | 88 |
| 397 | Neonatal intensive care | 3 | 44 | 115 | 74 |
| 399 | Geriatric Pharmacology | 2 | 43 | 484 | 664 |
| 399 | Elderly | 5 | 43 | 1225 | 1295 |
| 399 | cell membrane | 2 | 43 | 895 | 1086 |
| 402 | Angst | 1 | 42 | 58 | 67 |
| 402 | ovary | 3 | 42 | 237 | 430 |
| 402 | dissociative disorders | 1 | 42 | 253 | 216 |
| 405 | Anthropology | 1 | 41 | 3275 | 2032 |
| 405 | Ethnobotany | 1 | 41 | 506 | 501 |
| 405 | Traditional medicine | 1 | 41 | 697 | 597 |
| 405 | ethnobiology | 1 | 41 | 566 | 547 |
| 405 | Phytotherapy | 1 | 41 | 1812 | 1642 |
| 405 | Bones | 2 | 41 | 1450 | 1777 |
| 405 | Ethnomedicine | 1 | 41 | 402 | 488 |
| 412 | Amyotrophic Lateral Sclerosis | 2 | 40 | 403 | 549 |
| 413 | Forensic Genetics | 1 | 39 | 531 | 491 |
| 413 | pharmaceutical industry | 3 | 39 | 701 | 953 |
| 415 | Histology | 3 | 38 | 2392 | 3401 |
| 415 | Social support | 3 | 38 | 200 | 417 |
| 415 | cytokines | 2 | 38 | 2067 | 2612 |
| 415 | Social environment | 3 | 38 | 244 | 475 |
| 415 | Growth factors | 2 | 38 | 431 | 884 |
| 415 | Cytokine | 2 | 38 | 659 | 1054 |
| 421 | Criminology | 2 | 37 | 1275 | 1180 |
| 422 | Public opinion | 1 | 36 | 858 | 797 |
| 423 | Photonics | 2 | 35 | 2365 | 2802 |
| 423 | Hearing | 3 | 35 | 831 | 1138 |
| 423 | Spectrum analysis | 2 | 35 | 5759 | 6163 |
| 426 | Psychoanalysis | 1 | 34 | 838 | 373 |
| 426 | Behavioral research | 1 | 34 | 1193 | 742 |
| 426 | Antibacterial agents | 3 | 34 | 920 | 1704 |
| 426 | urban health | 2 | 34 | 436 | 657 |
| 426 | Hearing Aids | 2 | 34 | 337 | 333 |
| 426 | psychoanalytic therapy | 1 | 34 | 252 | 91 |
| 432 | Public Policy | 2 | 33 | 2760 | 3350 |
| 432 | Respiratory Infections | 1 | 33 | 862 | 783 |
| 432 | Influenza | 1 | 33 | 709 | 666 |
| 435 | Audiology | 2 | 31 | 1191 | 1421 |
| 435 | Biopharmaceutics | 1 | 31 | 2524 | 2460 |
| 437 | Language Disorders | 3 | 30 | 997 | 1426 |
| 437 | patient satisfaction | 4 | 30 | 97 | 133 |
| 437 | Microfabrication | 1 | 30 | 879 | 745 |
| 437 | adolescence | 1 | 30 | 1815 | 1736 |
| 441 | Radiation Oncology | 2 | 29 | 617 | 878 |
| 441 | Educational Technology | 1 | 29 | 3053 | 2508 |
| 443 | Ethics | 4 | 28 | 992 | 1603 |
| 443 | Optics | 1 | 28 | 7535 | 5594 |
| 443 | Photography | 1 | 28 | 3467 | 1259 |
| 446 | Pediatric Hematology | 1 | 27 | 905 | 661 |
| 446 | epilepsy | 5 | 27 | 959 | 2023 |
| 448 | Contraception | 1 | 26 | 1315 | 1411 |
| 448 | Reproductive health | 1 | 26 | 1714 | 1737 |
| 448 | Birth control | 1 | 26 | 1049 | 1168 |
| 451 | Radiation | 3 | 25 | 2789 | 3717 |
| 451 | Parasitology | 1 | 25 | 4234 | 4156 |
| 451 | Sexuality | 1 | 25 | 691 | 562 |
| 451 | Tropical Medicine | 5 | 25 | 1896 | 3559 |
| 451 | Menopause | 1 | 25 | 738 | 775 |
| 456 | Emergency Nursing | 2 | 24 | 244 | 357 |
| 457 | Pharmacognosy | 1 | 23 | 3365 | 3808 |
| 457 | Environmental Psychology | 1 | 23 | 758 | 993 |
| 457 | Computational Biology | 2 | 23 | 4608 | 5562 |
| 457 | Medicinal plants | 1 | 23 | 2807 | 3141 |
| 457 | Developmental Immunology | 2 | 23 | 1253 | 1935 |
| 457 | Neurons | 1 | 23 | 1321 | 1884 |
| 457 | Familial diseases | 1 | 23 | 583 | 600 |
| 464 | Materials Science | 1 | 22 | 7586 | 7127 |
| 464 | Materials | 1 | 22 | 8893 | 8543 |
| 464 | Intellectual disability | 1 | 22 | 1773 | 1716 |
| 467 | Mobile Computing | 1 | 21 | 2283 | 1805 |
| 467 | Community Psychology | 1 | 21 | 1165 | 1269 |
| 467 | Human-Computer Interaction | 1 | 21 | 2997 | 2967 |
| 467 | Jurisprudence | 2 | 21 | 1439 | 1785 |
| 471 | Chronobiology | 1 | 20 | 941 | 952 |
| 471 | speech therapy | 1 | 20 | 829 | 838 |
| 471 | cosmic rays | 2 | 20 | 736 | 950 |
| 471 | Circadian rhythms | 1 | 20 | 684 | 836 |
| 471 | biological clocks | 1 | 20 | 941 | 952 |
| 471 | Entropy | 1 | 20 | 2199 | 1958 |
| 471 | Communication Disorders | 1 | 20 | 715 | 653 |
| 471 | circadian rhythm | 1 | 20 | 941 | 952 |
| 471 | biological rhythms | 1 | 20 | 898 | 933 |
| 480 | Clinical Laboratory Science | 1 | 19 | 643 | 633 |
| 480 | Genetic engineering | 2 | 19 | 3296 | 4777 |
| 480 | Community Psychiatry | 1 | 19 | 2238 | 2522 |
| 480 | Genetic regulation | 2 | 19 | 1834 | 2820 |
| 480 | Psychiatric hospitals | 1 | 19 | 723 | 706 |
| 480 | cloning | 2 | 19 | 1064 | 1916 |
| 480 | Cognition | 2 | 19 | 2383 | 3366 |
| 487 | Statistics | 1 | 18 | 4731 | 4137 |
| 487 | Image Processing | 1 | 18 | 3646 | 3774 |
| 487 | Social welfare | 1 | 18 | 1318 | 1314 |
| 487 | Osteoporosis | 1 | 18 | 882 | 1068 |
| 487 | Imaging systems | 1 | 18 | 1680 | 1403 |
| 492 | Systems Engineering | 1 | 17 | 3990 | 3592 |
| 492 | Computer Vision | 1 | 17 | 2201 | 2535 |
| 492 | Cognitive Science | 1 | 17 | 2869 | 3245 |
| 492 | nursing ethics | 1 | 17 | 563 | 723 |
| 496 | Diagnosis | 2 | 16 | 1009 | 1595 |
| 496 | Bioinorganic chemistry | 1 | 16 | 2514 | 2916 |
| 496 | Patient Safety | 2 | 16 | 140 | 236 |
| 496 | Pancreatic diseases | 1 | 16 | 1112 | 950 |
| 500 | Engineering | 1 | 15 | 8385 | 7852 |
| 500 | Computer Science | 1 | 15 | 4291 | 3948 |
| 500 | Genetic Counseling | 2 | 15 | 490 | 801 |
| 500 | Developmental Psychology | 1 | 15 | 1957 | 2303 |
| 500 | Frontotemporal lobar degeneration | 1 | 15 | 461 | 599 |
| 500 | Food | 1 | 15 | 5572 | 6442 |
| 500 | human development | 1 | 15 | 1456 | 1808 |
| 500 | disease outbreaks | 1 | 15 | 1248 | 1719 |
| 500 | Epidemics | 1 | 15 | 1171 | 1680 |
| 500 | Appetite | 1 | 15 | 1390 | 1825 |
| 510 | War | 1 | 14 | 512 | 565 |
| 510 | warfare | 1 | 14 | 634 | 858 |
| 510 | refugees | 1 | 14 | 591 | 661 |
| 513 | Neurogenetics | 1 | 13 | 757 | 1021 |
| 513 | Lipid metabolism | 1 | 13 | 946 | 1423 |
| 513 | Lipid | 1 | 13 | 951 | 1427 |
| 513 | Prisons | 1 | 13 | 662 | 672 |
| 513 | sports injuries | 3 | 13 | 671 | 1380 |
| 518 | Bioengineering | 2 | 12 | 6236 | 8815 |
| 518 | Erectile dysfunction | 1 | 12 | 609 | 759 |
| 518 | transgenic organisms | 1 | 12 | 657 | 1010 |
| 518 | Plant genetic engineering | 1 | 12 | 1777 | 2251 |
| 518 | Quality Assurance | 1 | 12 | 984 | 1164 |
| 518 | transgenic animals | 1 | 12 | 622 | 975 |
| 518 | Antioxidants | 1 | 12 | 1567 | 2291 |
| 518 | Chromosome mapping | 2 | 12 | 2915 | 4842 |
| 518 | Transgenic plants | 1 | 12 | 1047 | 1508 |
| 518 | Safety management | 2 | 12 | 984 | 1686 |
| 518 | gene mapping | 2 | 12 | 3173 | 5193 |
| 518 | Oxidation-reduction | 1 | 12 | 1609 | 2375 |
| 530 | Pharmaceutical Technology | 2 | 11 | 2185 | 3567 |
| 530 | Psychiatric Nursing | 2 | 11 | 1007 | 1717 |
| 530 | Dyslexia | 1 | 11 | 327 | 466 |
| 530 | Cardiopulmonary Resuscitation | 1 | 11 | 419 | 367 |
| 530 | breastfeeding | 3 | 11 | 641 | 1602 |
| 530 | cardiac arrest | 1 | 11 | 419 | 367 |
| 530 | ethanol | 1 | 11 | 1128 | 1494 |
| 537 | Operations Research | 1 | 10 | 3744 | 4037 |
| 537 | management | 1 | 10 | 5998 | 6599 |
| 537 | Speech | 2 | 10 | 1277 | 2132 |
| 540 | Total Quality Management | 1 | 9 | 1201 | 1652 |
| 540 | Cross-Cultural Studies | 1 | 9 | 1499 | 1928 |
| 540 | Globalization | 1 | 9 | 1244 | 1714 |
| 540 | Asia | 1 | 9 | 5695 | 6082 |
| 540 | cross-cultural comparison | 1 | 9 | 1210 | 1624 |
| 540 | Information Science | 1 | 9 | 4777 | 5584 |
| 540 | Criminal investigation | 3 | 9 | 225 | 586 |
| 540 | international cooperation | 1 | 9 | 1332 | 1790 |
| 548 | Pastoral Theology | 2 | 8 | 214 | 181 |
| 548 | biomedicine | 1 | 8 | 2045 | 2950 |
| 550 | medical errors | 2 | 7 | 101 | 378 |
| 550 | Hemophilia | 2 | 7 | 782 | 1343 |
| 550 | Communication in medicine | 2 | 7 | 777 | 1694 |
| 550 | safety | 2 | 7 | 134 | 488 |
| 550 | drug control | 1 | 7 | 824 | 1274 |
| 555 | Analytical Chemistry | 1 | 6 | 7236 | 8874 |
| 555 | Music Therapy | 1 | 6 | 540 | 801 |
| 555 | Systems Analysis | 2 | 6 | 1631 | 3092 |
| 555 | Music | 1 | 6 | 1918 | 1981 |
| 555 | Histocompatibility Testing | 4 | 6 | 638 | 1749 |
| 555 | Chemical analysis | 1 | 6 | 2295 | 3244 |
| 555 | sociological factors | 1 | 6 | 84 | 79 |
| 555 | Adipose tissue | 1 | 6 | 212 | 466 |
| 555 | Pituitary gland | 1 | 6 | 491 | 799 |
| 555 | Consciousness | 2 | 6 | 677 | 1293 |
| 555 | sexual behavior | 1 | 6 | 1380 | 2051 |
| 566 | Cochlear Implants | 1 | 5 | 243 | 376 |
| 566 | Pediatric Rheumatology | 1 | 5 | 580 | 857 |
| 566 | Forensic Pathology | 1 | 5 | 382 | 578 |
| 566 | Analytical Biochemistry | 1 | 5 | 3430 | 4801 |
| 566 | Maternal health services | 1 | 5 | 1007 | 1642 |
| 566 | Leadership | 3 | 5 | 548 | 1527 |
| 566 | Neural circuitry | 1 | 5 | 3411 | 4588 |
| 566 | Laser therapy | 1 | 5 | 963 | 1314 |
| 566 | Child welfare | 1 | 5 | 2335 | 3252 |
| 566 | disease vectors | 1 | 5 | 1965 | 2946 |
| 566 | Imagination | 1 | 5 | 203 | 298 |
| 566 | Zoonoses | 1 | 5 | 734 | 1313 |
| 578 | Pharmacy | 1 | 4 | 4149 | 5623 |
| 578 | Neonatology | 1 | 4 | 1461 | 2261 |
| 578 | Evolutionary Genetics | 1 | 4 | 1567 | 2505 |
| 578 | Molecular Epidemiology | 1 | 4 | 1567 | 2505 |
| 578 | Professional ethics | 1 | 4 | 659 | 1239 |
| 578 | Societies | 1 | 4 | 417 | 547 |
| 584 | Paleontology | 1 | 3 | 2239 | 2941 |
| 584 | Pediatric Ophthalmology | 1 | 3 | 142 | 239 |
| 584 | Photochemistry | 1 | 3 | 3339 | 4779 |
| 584 | Strabismus | 1 | 3 | 142 | 239 |
| 584 | Paleopathology | 1 | 3 | 657 | 968 |
| 584 | Light | 1 | 3 | 1979 | 3009 |
| 584 | animal diseases | 1 | 3 | 1044 | 1818 |
| 584 | probabilities | 1 | 3 | 2173 | 2629 |
| 592 | Immunohematology | 2 | 2 | 211 | 514 |
| 592 | Organ transplantation | 1 | 2 | 862 | 1309 |
| 592 | visualization | 2 | 2 | 2533 | 3725 |
| 592 | Cerebellum | 1 | 2 | 691 | 1223 |
| 592 | Cerebellar ataxia | 1 | 2 | 691 | 1223 |
| 597 | Data Mining | 1 | 1 | 3570 | 5637 |
| 597 | Occupational Health | 1 | 1 | 2586 | 3902 |
| 597 | Special Education | 2 | 1 | 1158 | 2322 |
| 597 | Serology | 1 | 1 | 1175 | 1993 |
| 597 | Crime prevention | 1 | 1 | 630 | 1058 |
| 597 | Systems Biology | 1 | 1 | 3266 | 5122 |
| 597 | School Psychology | 1 | 1 | 904 | 1586 |
| 597 | Databases | 1 | 1 | 727 | 1208 |
| 597 | Educational Psychology | 2 | 1 | 1946 | 3838 |
| 597 | Signal Processing | 1 | 1 | 3527 | 5061 |
| 597 | emergency management | 1 | 1 | 1921 | 3385 |
| 597 | Electrocardiography | 1 | 1 | 959 | 1424 |
| 597 | Bioinformatics | 1 | 1 | 3992 | 5788 |
| 597 | Retinal diseases | 1 | 1 | 190 | 293 |
| 597 | big data | 1 | 1 | 1254 | 2205 |
| 597 | Blood group antigens | 1 | 1 | 222 | 417 |
| 597 | Mitochondria | 1 | 1 | 810 | 1403 |
| 597 | school psychologists | 1 | 1 | 402 | 760 |
| 597 | venom | 1 | 1 | 1861 | 2667 |
| 597 | Toxins | 1 | 1 | 2011 | 2884 |
| 597 | Genes | 1 | 1 | 2359 | 3712 |
| 618 | Law | 1 | 0 | 2912 | 3768 |
| 618 | Comparative Physiology | 1 | 0 | 1583 | 2351 |
| 618 | Industrial Safety | 1 | 0 | 2552 | 4190 |
| 618 | Data Science | 3 | 0 | 219 | 417 |
| 618 | Evidence-based practice | 2 | 0 | 198 | 454 |
| 618 | Electrochemistry | 1 | 0 | 5657 | 7321 |
| 618 | Fluorescence spectroscopy | 1 | 0 | 630 | 1153 |
| 618 | Molecular Spectroscopy | 1 | 0 | 3169 | 4677 |
| 618 | Sports | 1 | 0 | 3730 | 4961 |
| 618 | Hypertension in pregnancy | 1 | 0 | 697 | 1100 |
| 618 | Population | 3 | 0 | 1284 | 3664 |
| 618 | Developing countries | 1 | 0 | 4840 | 7257 |
