| 1 | Public Health | 593 | 27.3K | 177 | 163 |
| 2 | Medicine | 795 | 21.1K | 493 | 818 |
| 3 | Liver diseases | 63 | 12.2K | 272 | 104 |
| 4 | Science | 333 | 9.5K | 1002 | 2064 |
| 5 | Epidemiology | 228 | 9.2K | 269 | 249 |
| 6 | Oncology | 28 | 7.2K | 783 | 326 |
| 7 | Pediatrics | 120 | 6.7K | 340 | 301 |
| 8 | Research | 366 | 6.4K | 726 | 1305 |
| 9 | Biology | 148 | 4.6K | 1822 | 2959 |
| 10 | Contraception | 108 | 4.6K | 23 | 19 |
| 11 | Reproductive health | 111 | 4.6K | 13 | 9 |
| 12 | Birth control | 107 | 4.6K | 12 | 11 |
| 13 | Obstetrics | 122 | 4.4K | 332 | 233 |
| 14 | Psychiatry | 82 | 4.1K | 981 | 887 |
| 15 | Microbiology | 82 | 3.8K | 1695 | 1686 |
| 16 | Mental Disorders | 63 | 3.7K | 639 | 578 |
| 17 | Nutrition | 131 | 3.7K | 554 | 704 |
| 18 | Biochemistry | 137 | 3.4K | 2089 | 2442 |
| 19 | Pharmacognosy | 40 | 3.1K | 382 | 160 |
| 20 | Medicinal plants | 36 | 3.0K | 260 | 87 |
| 21 | Human genetics | 11 | 2.9K | 1668 | 1356 |
| 22 | Neurology | 109 | 2.7K | 1262 | 1733 |
| 23 | Leukemia | 17 | 2.7K | 703 | 262 |
| 24 | Neurochemistry | 34 | 2.6K | 867 | 537 |
| 25 | Pharmacology | 59 | 2.6K | 1651 | 1324 |
| 26 | Physics | 22 | 2.6K | 5492 | 4019 |
| 27 | Adolescent Medicine | 8 | 2.6K | 415 | 113 |
| 28 | Vaccines | 74 | 2.5K | 245 | 247 |
| 29 | Natural history | 12 | 2.4K | 2757 | 2702 |
| 30 | Molecular Biology | 61 | 2.3K | 2713 | 2898 |
| 31 | Pregnancy | 72 | 2.3K | 37 | 40 |
| 32 | Diet | 50 | 2.2K | 488 | 532 |
| 33 | medical education | 459 | 1.9K | 17 | 264 |
| 34 | Parasitology | 49 | 1.8K | 552 | 385 |
| 35 | Psychology | 55 | 1.6K | 1267 | 1315 |
| 36 | Primary health care | 77 | 1.6K | 191 | 247 |
| 37 | Emergency Medicine | 60 | 1.5K | 279 | 230 |
| 38 | Hypertension | 22 | 1.5K | 745 | 725 |
| 39 | Tropical Medicine | 57 | 1.4K | 221 | 226 |
| 40 | Pakistan | 197 | 1.4K | 4 | 3 |
| 41 | Health Policy | 43 | 1.4K | 532 | 486 |
| 42 | Health Services Research | 75 | 1.4K | 213 | 319 |
| 43 | Diabetes | 19 | 1.3K | 1149 | 984 |
| 44 | Diabetes mellitus | 17 | 1.3K | 1161 | 949 |
| 45 | Endocrinology | 24 | 1.3K | 1499 | 1374 |
| 46 | Global Health | 96 | 1.3K | 46 | 86 |
| 47 | Diagnostic microbiology | 19 | 1.3K | 571 | 599 |
| 48 | Environmental Health | 33 | 1.3K | 1992 | 1981 |
| 49 | Cardiovascular system | 22 | 1.2K | 731 | 838 |
| 50 | Medical Microbiology | 33 | 1.2K | 807 | 1014 |
| 51 | Developing countries | 62 | 1.2K | 287 | 481 |
| 52 | Perception | 17 | 1.2K | 992 | 598 |
| 53 | Virology | 27 | 1.1K | 1358 | 1884 |
| 53 | Attention | 17 | 1.1K | 921 | 523 |
| 55 | Visual Perception | 16 | 1.1K | 913 | 520 |
| 55 | Memory | 16 | 1.1K | 1011 | 639 |
| 57 | Toxicology | 25 | 1.1K | 2188 | 1805 |
| 58 | Parasitic Diseases | 16 | 1.1K | 1042 | 602 |
| 59 | Alternative Medicine | 33 | 1.1K | 385 | 268 |
| 60 | complementary therapies | 32 | 1.0K | 417 | 293 |
| 61 | Allergy | 14 | 902 | 731 | 798 |
| 61 | Cancer | 55 | 902 | 1157 | 1910 |
| 63 | Sociology | 29 | 874 | 935 | 861 |
| 64 | Biophysics | 16 | 842 | 3718 | 2691 |
| 65 | Chemistry | 19 | 827 | 5823 | 5223 |
| 66 | Urology | 36 | 810 | 672 | 825 |
| 67 | Genomics | 13 | 781 | 2105 | 1469 |
| 68 | Child | 81 | 777 | 372 | 824 |
| 69 | Physiology | 21 | 768 | 2194 | 2119 |
| 70 | Socioeconomic Factors | 17 | 748 | 230 | 138 |
| 71 | Women's health | 38 | 734 | 206 | 290 |
| 72 | diseases | 31 | 728 | 22 | 551 |
| 73 | Adolescent | 63 | 691 | 342 | 709 |
| 74 | Surgery | 30 | 688 | 819 | 1385 |
| 75 | Medical Anthropology | 18 | 672 | 479 | 594 |
| 76 | Environment | 8 | 669 | 4083 | 3407 |
| 77 | Medical genetics | 22 | 666 | 1543 | 2003 |
| 78 | infection | 17 | 655 | 780 | 814 |
| 79 | Infections | 16 | 654 | 518 | 654 |
| 79 | disease vectors | 7 | 654 | 697 | 269 |
| 81 | Demography | 5 | 650 | 597 | 203 |
| 81 | Population | 5 | 650 | 935 | 255 |
| 83 | Parasites | 7 | 640 | 1280 | 498 |
| 84 | Emergency Medical Services | 31 | 634 | 122 | 112 |
| 85 | Nutrition physiology | 16 | 605 | 229 | 252 |
| 86 | health planning | 21 | 598 | 742 | 586 |
| 87 | Suicide | 19 | 588 | 143 | 146 |
| 88 | Education | 46 | 586 | 1002 | 1106 |
| 89 | Malaria | 18 | 585 | 262 | 256 |
| 90 | Environmental Toxicology | 5 | 547 | 2340 | 1320 |
| 91 | Immunology | 23 | 539 | 1970 | 2637 |
| 92 | Gastrointestinal diseases | 19 | 538 | 155 | 131 |
| 93 | poverty | 9 | 528 | 147 | 69 |
| 93 | healthcare disparities | 9 | 528 | 256 | 106 |
| 95 | Health Services Administration | 18 | 515 | 345 | 385 |
| 95 | health services accessibility | 58 | 515 | 82 | 280 |
| 97 | Cardiovascular diseases | 31 | 509 | 507 | 733 |
| 98 | Nursing | 33 | 508 | 445 | 473 |
| 99 | Hematology | 52 | 501 | 1320 | 1957 |
| 100 | Pathology | 34 | 493 | 839 | 1527 |
| 101 | Child Development | 25 | 488 | 724 | 1042 |
| 102 | breastfeeding | 19 | 469 | 113 | 117 |
| 103 | Asia | 50 | 460 | 421 | 727 |
| 104 | Research Design | 9 | 442 | 792 | 578 |
| 105 | Crisis Intervention | 15 | 435 | 26 | 32 |
| 106 | Evidence-Based Medicine | 12 | 418 | 591 | 351 |
| 107 | Developmental Psychology | 11 | 415 | 587 | 602 |
| 108 | Orthopedics | 10 | 413 | 1115 | 895 |
| 109 | Metabolism | 17 | 406 | 1655 | 2233 |
| 110 | Genetics | 6 | 405 | 3889 | 3269 |
| 111 | Globalization | 5 | 402 | 422 | 146 |
| 111 | Middle East | 35 | 402 | 124 | 161 |
| 111 | international cooperation | 5 | 402 | 472 | 226 |
| 114 | Health | 23 | 394 | 861 | 1220 |
| 115 | Psychophysiology | 10 | 391 | 2079 | 2035 |
| 116 | Medical Ethics | 20 | 385 | 360 | 322 |
| 116 | health services | 32 | 385 | 217 | 431 |
| 118 | Child psychology | 12 | 368 | 850 | 1050 |
| 119 | Health promotion | 13 | 367 | 767 | 800 |
| 120 | Hemodynamics | 3 | 363 | 804 | 518 |
| 121 | Lung Transplantation | 2 | 362 | 974 | 335 |
| 121 | Clinical Biochemistry | 24 | 362 | 436 | 695 |
| 121 | Heart transplantation | 2 | 362 | 974 | 335 |
| 124 | Disease | 1 | 360 | 845 | 755 |
| 125 | Botany | 3 | 342 | 4461 | 2730 |
| 126 | Neurosurgery | 14 | 341 | 645 | 748 |
| 127 | Medical Technology | 21 | 331 | 550 | 960 |
| 128 | Digestive system diseases | 10 | 330 | 650 | 592 |
| 129 | health workforce | 10 | 325 | 75 | 104 |
| 130 | Mental Health | 16 | 321 | 741 | 796 |
| 131 | Community Psychiatry | 5 | 314 | 954 | 632 |
| 132 | Food | 11 | 304 | 2032 | 2126 |
| 133 | Africa | 41 | 303 | 271 | 488 |
| 134 | Brain | 13 | 302 | 1721 | 2066 |
| 135 | Critical Care | 17 | 301 | 859 | 1635 |
| 136 | Ethics | 10 | 300 | 515 | 312 |
| 137 | Medical Oncology | 38 | 296 | 678 | 1533 |
| 138 | Medical Laboratory Science | 13 | 292 | 1100 | 1504 |
| 139 | Nutritional support | 6 | 288 | 102 | 117 |
| 140 | Critical Care Medicine | 17 | 286 | 842 | 1657 |
| 141 | Neurophysiology | 6 | 282 | 2667 | 2489 |
| 141 | risk factors | 12 | 282 | 379 | 476 |
| 141 | Kidney diseases | 13 | 282 | 517 | 704 |
| 144 | Public Policy | 10 | 270 | 1062 | 1112 |
| 145 | Chromosome mapping | 4 | 267 | 2093 | 1607 |
| 145 | gene mapping | 4 | 267 | 2316 | 1890 |
| 147 | United States | 18 | 265 | 2718 | 3424 |
| 148 | Telemedicine | 3 | 262 | 474 | 187 |
| 149 | Herbal medicine | 5 | 255 | 558 | 452 |
| 150 | Mental illness | 12 | 253 | 1293 | 1919 |
| 151 | Muscles | 4 | 250 | 994 | 774 |
| 152 | Biotechnology | 17 | 248 | 3566 | 5388 |
| 152 | Lipids | 6 | 248 | 1182 | 1168 |
| 154 | Sarcopenia | 1 | 238 | 875 | 355 |
| 155 | Metabolic syndrome | 3 | 229 | 245 | 63 |
| 156 | Transplantation | 7 | 224 | 1097 | 1232 |
| 157 | Immunity | 13 | 220 | 1219 | 2460 |
| 158 | Social Sciences | 14 | 219 | 2011 | 1811 |
| 159 | Ophthalmology | 12 | 215 | 1151 | 1452 |
| 159 | world | 4 | 215 | 726 | 733 |
| 161 | Pacific Islands | 25 | 204 | 38 | 71 |
| 162 | rare diseases | 3 | 200 | 854 | 561 |
| 162 | Immune system | 9 | 200 | 734 | 1446 |
| 164 | Diagnostic Imaging | 27 | 196 | 678 | 1630 |
| 165 | Virulence | 4 | 194 | 1303 | 1601 |
| 166 | War | 8 | 193 | 83 | 66 |
| 166 | warfare | 8 | 193 | 157 | 238 |
| 166 | refugees | 8 | 193 | 112 | 96 |
| 169 | Randomized Controlled Trials | 17 | 192 | 470 | 687 |
| 170 | Economic Development | 10 | 191 | 1028 | 1489 |
| 171 | Atherosclerosis | 18 | 190 | 28 | 122 |
| 172 | Mathematics | 17 | 189 | 3560 | 3521 |
| 173 | behavioral medicine | 8 | 187 | 914 | 1365 |
| 174 | Orthopedic Surgery | 4 | 186 | 961 | 679 |
| 174 | Infection control | 6 | 186 | 554 | 518 |
| 176 | occupational diseases | 10 | 183 | 530 | 781 |
| 177 | Immunotherapy | 12 | 181 | 1118 | 2072 |
| 177 | Cross-Cultural Studies | 17 | 181 | 138 | 359 |
| 177 | cross-cultural comparison | 17 | 181 | 104 | 255 |
| 177 | gastrointestinal tract | 1 | 181 | 708 | 303 |
| 181 | gene therapy | 4 | 180 | 1299 | 1298 |
| 182 | Genetic therapy | 3 | 178 | 1625 | 1391 |
| 183 | Hypertension in pregnancy | 19 | 175 | 63 | 64 |
| 184 | drug resistance | 7 | 173 | 432 | 597 |
| 185 | Sleep Disorders | 8 | 171 | 1376 | 1479 |
| 185 | Sleep | 8 | 171 | 1375 | 1488 |
| 187 | Food Policy | 3 | 170 | 406 | 354 |
| 187 | Agriculture | 4 | 170 | 2542 | 1891 |
| 189 | Immunogenetics | 2 | 169 | 1183 | 637 |
| 190 | Antibacterial agents | 4 | 166 | 760 | 701 |
| 191 | human development | 7 | 165 | 536 | 685 |
| 192 | vascular diseases | 2 | 164 | 1170 | 867 |
| 192 | biochemical markers | 4 | 164 | 884 | 529 |
| 194 | Climatology | 1 | 161 | 3198 | 1662 |
| 194 | bioclimatology | 1 | 161 | 1945 | 678 |
| 194 | Climate | 1 | 161 | 1348 | 538 |
| 194 | weather | 1 | 161 | 1252 | 451 |
| 198 | Economic History | 10 | 158 | 2479 | 2195 |
| 199 | Pharmacy | 3 | 157 | 2686 | 1939 |
| 199 | adolescence | 7 | 157 | 653 | 791 |
| 201 | air quality management | 3 | 156 | 604 | 445 |
| 201 | Behavior | 10 | 156 | 2247 | 3578 |
| 203 | Engineering | 18 | 155 | 2186 | 3116 |
| 203 | Mycology | 6 | 155 | 1458 | 1542 |
| 203 | indoor air pollution | 2 | 155 | 604 | 344 |
| 203 | Ventilation | 2 | 155 | 816 | 397 |
| 203 | Sick building syndrome | 2 | 155 | 604 | 344 |
| 208 | psychotherapy | 3 | 154 | 1646 | 1232 |
| 209 | General Surgery | 9 | 153 | 503 | 538 |
| 210 | violence | 7 | 151 | 654 | 802 |
| 210 | sex crimes | 7 | 151 | 408 | 459 |
| 212 | Obesity | 9 | 150 | 1534 | 2388 |
| 212 | mycoses | 5 | 150 | 802 | 1179 |
| 212 | Psychiatric Epidemiology | 3 | 150 | 619 | 578 |
| 215 | Health Education | 11 | 149 | 1156 | 1594 |
| 216 | Computer Science | 13 | 147 | 1073 | 1310 |
| 216 | Antiviral agents | 4 | 147 | 355 | 308 |
| 218 | Mental Health Services | 6 | 146 | 1112 | 1091 |
| 218 | Earth Sciences | 3 | 146 | 3838 | 2798 |
| 220 | Adolescent Psychology | 5 | 145 | 770 | 763 |
| 220 | Europe | 16 | 145 | 1723 | 2583 |
| 222 | Occupational Health | 14 | 141 | 502 | 833 |
| 223 | pain | 7 | 140 | 1168 | 1589 |
| 223 | phototherapy | 24 | 140 | 15 | 34 |
| 225 | Environmental monitoring | 6 | 139 | 3482 | 4304 |
| 226 | Gerontology | 8 | 136 | 1494 | 1573 |
| 227 | Sustainable Development | 3 | 135 | 2565 | 2056 |
| 227 | Environmental Policy | 6 | 135 | 2834 | 3854 |
| 227 | Metabolic diseases | 12 | 135 | 1649 | 3083 |
| 227 | Dementia | 11 | 135 | 1011 | 1108 |
| 227 | Alzheimer's disease | 11 | 135 | 1011 | 1223 |
| 232 | United Kingdom | 4 | 133 | 1848 | 1882 |
| 233 | Geriatrics | 12 | 130 | 1997 | 2860 |
| 233 | Career development | 7 | 130 | 216 | 225 |
| 235 | preventive medicine | 5 | 128 | 1335 | 1596 |
| 236 | Cytology | 9 | 126 | 3522 | 5154 |
| 236 | environmental pollution | 4 | 126 | 4747 | 5045 |
| 236 | Pollution | 4 | 126 | 5735 | 6152 |
| 239 | Social Psychology | 8 | 125 | 1480 | 2083 |
| 240 | Schizophrenia | 1 | 121 | 2003 | 1318 |
| 240 | rehabilitation | 7 | 121 | 1821 | 2286 |
| 242 | Anatomy | 8 | 118 | 1584 | 2193 |
| 243 | Immunopathology | 9 | 116 | 1026 | 1712 |
| 244 | Bacteriology | 1 | 111 | 3590 | 2671 |
| 245 | Educational Psychology | 4 | 110 | 1381 | 1313 |
| 246 | Clinical Pharmacology | 3 | 109 | 1950 | 1671 |
| 247 | Environmental Geochemistry | 3 | 108 | 604 | 438 |
| 247 | Minerals | 3 | 108 | 888 | 730 |
| 249 | Stem cells | 13 | 107 | 992 | 2093 |
| 249 | drug therapy | 6 | 107 | 2277 | 2909 |
| 251 | Educational Technology | 6 | 106 | 1185 | 1333 |
| 252 | biological factors | 5 | 105 | 1834 | 2073 |
| 253 | Regional Planning | 3 | 104 | 1829 | 1410 |
| 254 | Geography | 2 | 103 | 3333 | 2286 |
| 254 | Geology | 2 | 103 | 4092 | 2889 |
| 254 | Oceanography | 2 | 103 | 2488 | 1963 |
| 254 | Nephrology | 7 | 103 | 457 | 943 |
| 254 | Human Geography | 2 | 103 | 1558 | 924 |
| 259 | sustainability | 1 | 102 | 1746 | 1127 |
| 259 | cardiac catheterization | 8 | 102 | 646 | 811 |
| 261 | Radiology | 7 | 101 | 1417 | 1509 |
| 262 | Pediatric Neurology | 5 | 100 | 1055 | 1931 |
| 263 | Information Technology | 5 | 98 | 2341 | 2105 |
| 263 | Hospitals | 7 | 98 | 528 | 774 |
| 263 | Quality of life | 4 | 98 | 1634 | 1986 |
| 263 | Information Science | 7 | 98 | 1931 | 2666 |
| 267 | Chemotherapy | 5 | 97 | 1551 | 1929 |
| 267 | human behavior | 3 | 97 | 3066 | 3633 |
| 269 | Maternal health services | 4 | 96 | 412 | 502 |
| 269 | Child welfare | 5 | 96 | 1012 | 1088 |
| 269 | management | 5 | 96 | 3184 | 3447 |
| 272 | disease outbreaks | 1 | 95 | 1248 | 832 |
| 272 | Epidemics | 1 | 95 | 1171 | 820 |
| 274 | Immunopharmacology | 4 | 94 | 1082 | 1289 |
| 274 | cytokines | 4 | 94 | 1443 | 1815 |
| 276 | Neurobiology | 5 | 93 | 1799 | 2590 |
| 277 | Osteoporosis | 9 | 91 | 139 | 396 |
| 277 | Bone diseases | 9 | 91 | 233 | 785 |
| 277 | Therapeutics | 4 | 91 | 2074 | 2634 |
| 280 | School Psychology | 2 | 90 | 655 | 499 |
| 280 | Antibodies | 1 | 90 | 1480 | 888 |
| 280 | Antigens | 1 | 90 | 1890 | 1154 |
| 280 | school psychologists | 2 | 90 | 280 | 264 |
| 284 | X-rays | 4 | 89 | 711 | 611 |
| 285 | Diagnosis | 2 | 88 | 1009 | 615 |
| 285 | older people | 7 | 88 | 1315 | 1444 |
| 285 | disease susceptibility | 2 | 88 | 570 | 396 |
| 285 | symptoms | 2 | 88 | 570 | 396 |
| 289 | Palliative Care | 17 | 87 | 328 | 967 |
| 290 | Dermatology | 8 | 86 | 1472 | 2064 |
| 290 | Neonatology | 4 | 86 | 682 | 774 |
| 290 | Oral Medicine | 20 | 86 | 142 | 511 |
| 293 | Comparative Education | 4 | 85 | 216 | 127 |
| 293 | viruses | 3 | 85 | 1903 | 2438 |
| 295 | Pharmaceutical Chemistry | 4 | 84 | 4331 | 4806 |
| 295 | Development | 8 | 84 | 503 | 1134 |
| 297 | personality | 1 | 83 | 2506 | 1830 |
| 297 | Phytotherapy | 2 | 83 | 1336 | 1103 |
| 299 | Library Science | 7 | 82 | 900 | 694 |
| 300 | Pediatric Hematology | 12 | 81 | 164 | 298 |
| 300 | Functional foods | 1 | 81 | 899 | 481 |
| 302 | child abuse | 7 | 79 | 581 | 1184 |
| 303 | epilepsy | 7 | 76 | 771 | 1265 |
| 303 | Biomarkers | 2 | 76 | 722 | 445 |
| 303 | Aging | 8 | 76 | 2374 | 3550 |
| 306 | Cell Biology | 6 | 75 | 3923 | 5823 |
| 306 | Social Issues | 2 | 75 | 347 | 335 |
| 306 | nuclear magnetic resonance | 1 | 75 | 2020 | 1218 |
| 306 | Magnetic Resonance Spectroscopy | 1 | 75 | 2245 | 1327 |
| 306 | Social problems | 2 | 75 | 859 | 755 |
| 306 | India | 10 | 75 | 967 | 984 |
| 312 | Rheumatology | 10 | 74 | 851 | 1824 |
| 312 | Pathogens | 3 | 74 | 75 | 90 |
| 314 | Teaching | 8 | 73 | 1178 | 1676 |
| 315 | health behavior | 5 | 70 | 915 | 1385 |
| 315 | environmental exposure | 7 | 70 | 1471 | 2803 |
| 317 | Enzyme inhibitors | 2 | 69 | 561 | 441 |
| 317 | natural products | 6 | 69 | 1470 | 1953 |
| 319 | Geriatric Oncology | 2 | 68 | 978 | 1014 |
| 320 | toxicity testing | 1 | 67 | 1648 | 1123 |
| 321 | drug abuse | 5 | 66 | 580 | 846 |
| 322 | Geriatric Psychiatry | 2 | 65 | 1763 | 1671 |
| 322 | Pediatric Rheumatology | 8 | 65 | 130 | 301 |
| 324 | blood transfusion | 9 | 64 | 544 | 1070 |
| 325 | hospice care | 13 | 63 | 201 | 703 |
| 325 | Nervous system | 6 | 63 | 2316 | 3905 |
| 327 | Biomedical Engineering | 4 | 62 | 5616 | 6603 |
| 327 | Ethnology | 3 | 62 | 1835 | 1450 |
| 329 | Clinical Chemistry | 48 | 61 | 785 | 4370 |
| 329 | harm reduction | 4 | 61 | 170 | 304 |
| 329 | Chronic diseases | 8 | 61 | 485 | 1253 |
| 332 | planning | 3 | 60 | 860 | 829 |
| 333 | Humanities | 5 | 59 | 1659 | 1422 |
| 333 | kidney | 2 | 59 | 114 | 157 |
| 335 | Neuropsychology | 4 | 57 | 2501 | 3336 |
| 335 | ovary | 2 | 57 | 323 | 328 |
| 337 | Clinical Laboratory Science | 6 | 56 | 173 | 328 |
| 338 | Economic Assistance | 2 | 55 | 1056 | 1251 |
| 338 | drug control | 2 | 55 | 578 | 625 |
| 338 | eugenics | 2 | 55 | 1009 | 915 |
| 341 | Surgical Oncology | 8 | 54 | 7 | 8 |
| 341 | Thorax | 2 | 54 | 791 | 1005 |
| 343 | industrial hygiene | 7 | 53 | 821 | 1214 |
| 343 | Hormones | 1 | 53 | 2605 | 2251 |
| 343 | Reproduction | 6 | 53 | 2198 | 3402 |
| 343 | Steroids | 1 | 53 | 1994 | 1620 |
| 347 | Carcinogenesis | 2 | 52 | 1612 | 1965 |
| 347 | Cognitive neuroscience | 1 | 52 | 1753 | 1582 |
| 347 | Cognition | 1 | 52 | 3064 | 2425 |
| 350 | Respiration | 5 | 50 | 1535 | 2531 |
| 351 | Regeneration | 1 | 49 | 145 | 73 |
| 351 | Action Research | 4 | 49 | 184 | 253 |
| 353 | Histochemistry | 2 | 48 | 1691 | 1619 |
| 353 | Feasibility studies | 9 | 48 | 134 | 251 |
| 353 | drug evaluation | 4 | 48 | 1464 | 2207 |
| 356 | Industrial Safety | 6 | 47 | 928 | 1680 |
| 356 | Bioethics | 4 | 47 | 928 | 1151 |
| 358 | Psychiatric Nursing | 5 | 46 | 575 | 950 |
| 358 | Anti-inflammatory agents | 2 | 46 | 368 | 397 |
| 358 | Biocompatible Materials | 2 | 46 | 4968 | 5910 |
| 358 | Inflammation | 2 | 46 | 1996 | 2466 |
| 358 | disaster relief | 3 | 46 | 241 | 405 |
| 363 | Eating Disorders | 1 | 45 | 1688 | 1454 |
| 363 | Feeding and Eating Disorders | 1 | 45 | 1623 | 1401 |
| 365 | histological techniques | 2 | 43 | 1092 | 1539 |
| 365 | nursing ethics | 3 | 43 | 248 | 435 |
| 365 | society | 1 | 43 | 212 | 98 |
| 368 | Communication | 6 | 42 | 1678 | 2674 |
| 369 | Higher Education | 1 | 41 | 1126 | 768 |
| 369 | Artificial Organs | 1 | 41 | 1465 | 1014 |
| 369 | Synapses | 1 | 41 | 624 | 596 |
| 369 | tests | 1 | 41 | 392 | 352 |
| 373 | Emerging infectious diseases | 1 | 40 | 777 | 795 |
| 373 | chronic disease | 3 | 40 | 434 | 703 |
| 373 | Culture | 5 | 40 | 924 | 1168 |
| 376 | Economics | 2 | 39 | 5584 | 4712 |
| 376 | women | 3 | 39 | 993 | 963 |
| 378 | Smoking | 4 | 38 | 815 | 1539 |
| 378 | Educational Change | 1 | 38 | 155 | 130 |
| 378 | educational innovations | 1 | 38 | 1074 | 782 |
| 381 | Dentistry | 18 | 37 | 253 | 976 |
| 381 | Quality Control | 3 | 37 | 2244 | 3076 |
| 381 | stem cell transplantation | 9 | 37 | 37 | 74 |
| 384 | Social policy | 4 | 36 | 1012 | 1403 |
| 384 | men | 3 | 36 | 326 | 544 |
| 384 | traffic safety | 4 | 36 | 282 | 540 |
| 387 | pain management | 6 | 35 | 533 | 1262 |
| 388 | Ecology | 2 | 34 | 8623 | 10388 |
| 388 | Evolutionary Genetics | 4 | 34 | 679 | 1477 |
| 388 | Molecular Epidemiology | 4 | 34 | 679 | 1477 |
| 388 | Enteral nutrition | 2 | 34 | 1437 | 1934 |
| 388 | Parenteral nutrition | 2 | 34 | 1714 | 2212 |
| 388 | hygiene | 1 | 34 | 1216 | 1085 |
| 394 | Religion and Culture | 1 | 33 | 711 | 425 |
| 394 | energy development | 2 | 33 | 1300 | 1767 |
| 396 | Histology | 2 | 32 | 2797 | 3575 |
| 396 | Cardiovascular Pharmacology | 1 | 32 | 722 | 690 |
| 396 | Technology | 6 | 32 | 3896 | 6483 |
| 396 | Elderly | 4 | 32 | 1385 | 1500 |
| 400 | Occupational Therapy | 4 | 31 | 1119 | 1461 |
| 400 | Neurotoxicology | 1 | 31 | 1254 | 1441 |
| 400 | Vaccination | 1 | 31 | 630 | 679 |
| 400 | Islam | 8 | 31 | 296 | 562 |
| 400 | cultural pluralism | 3 | 31 | 425 | 594 |
| 405 | Hydrology | 1 | 30 | 4471 | 3949 |
| 405 | Social History | 4 | 30 | 534 | 553 |
| 405 | Water | 1 | 30 | 4408 | 4703 |
| 405 | Water quality management | 1 | 30 | 3474 | 3098 |
| 405 | Respiratory Infections | 6 | 30 | 263 | 824 |
| 405 | Infertility | 1 | 30 | 2087 | 2109 |
| 405 | Water Microbiology | 1 | 30 | 1106 | 1153 |
| 405 | fertility | 1 | 30 | 2198 | 2232 |
| 413 | Signal Transduction | 2 | 29 | 2091 | 2923 |
| 413 | Clinical Immunology | 2 | 29 | 2042 | 2603 |
| 413 | Family | 2 | 29 | 1441 | 1694 |
| 416 | Asthma | 2 | 28 | 1186 | 1480 |
| 416 | Neonatal Nursing | 1 | 28 | 386 | 145 |
| 416 | Obstetric Nursing | 1 | 28 | 736 | 538 |
| 416 | Qualitative Research | 3 | 28 | 558 | 870 |
| 420 | Dietetics | 2 | 27 | 1242 | 1342 |
| 420 | Genetic testing | 5 | 27 | 238 | 676 |
| 420 | drug development | 1 | 27 | 2340 | 2860 |
| 420 | drugs | 1 | 27 | 4383 | 4284 |
| 420 | Thyroid hormones | 1 | 27 | 41 | 63 |
| 425 | Pediatric Endocrinology | 4 | 26 | 349 | 562 |
| 425 | Geriatric Pharmacology | 1 | 26 | 746 | 822 |
| 425 | Educational Research | 1 | 26 | 237 | 188 |
| 425 | Communication in medicine | 3 | 26 | 617 | 1108 |
| 425 | Metabolic disorders in children | 4 | 26 | 288 | 472 |
| 425 | Australia | 5 | 26 | 1858 | 3327 |
| 431 | Applied Linguistics | 2 | 25 | 844 | 881 |
| 431 | Public Administration | 2 | 25 | 2077 | 2014 |
| 431 | Multilingualism | 1 | 25 | 576 | 526 |
| 431 | Sexual health | 6 | 25 | 633 | 1381 |
| 431 | calcification | 1 | 25 | 1171 | 1362 |
| 431 | pollutants | 1 | 25 | 3527 | 3928 |
| 431 | Environmental pollutants | 1 | 25 | 4162 | 4500 |
| 438 | Industrial Microbiology | 2 | 24 | 2841 | 4144 |
| 438 | ethnicity | 4 | 24 | 683 | 1138 |
| 438 | Radiobiology | 12 | 24 | 1213 | 2968 |
| 438 | School Improvement Programs | 3 | 24 | 21 | 75 |
| 442 | Statistics | 1 | 23 | 4731 | 3878 |
| 442 | Anthropological Linguistics | 4 | 23 | 238 | 292 |
| 442 | Clinical Trials | 1 | 23 | 1438 | 1366 |
| 442 | Emergency Nursing | 1 | 23 | 417 | 367 |
| 442 | Morphology | 1 | 23 | 1649 | 1407 |
| 442 | Photochemistry | 1 | 23 | 3339 | 3496 |
| 442 | Critical Pedagogy | 2 | 23 | 101 | 131 |
| 442 | Photobiology | 1 | 23 | 2690 | 2809 |
| 442 | data collection | 4 | 23 | 1118 | 2658 |
| 451 | Law | 3 | 22 | 1828 | 1444 |
| 451 | Cardiopulmonary Resuscitation | 3 | 22 | 181 | 212 |
| 451 | cardiac arrest | 3 | 22 | 181 | 212 |
| 451 | Screening | 1 | 22 | 521 | 550 |
| 451 | Spine | 2 | 22 | 1094 | 1636 |
| 456 | Bioengineering | 1 | 21 | 7586 | 8124 |
| 456 | Environmental Microbiology | 1 | 21 | 2819 | 3501 |
| 456 | Microbial Ecology | 1 | 21 | 4203 | 5163 |
| 456 | soil microbiology | 1 | 21 | 2781 | 3551 |
| 456 | child behavior | 3 | 21 | 464 | 923 |
| 461 | Early Childhood Education | 4 | 20 | 547 | 994 |
| 461 | Computational Biology | 3 | 20 | 3927 | 5726 |
| 461 | Animal health | 1 | 20 | 937 | 776 |
| 461 | dietary supplements | 1 | 20 | 1659 | 2028 |
| 461 | Influenza | 3 | 20 | 330 | 848 |
| 466 | Environmental Engineering | 1 | 19 | 6929 | 7338 |
| 466 | Environmental Law | 1 | 19 | 2310 | 2965 |
| 466 | environmental protection | 1 | 19 | 6467 | 6982 |
| 466 | Behavioral research | 4 | 19 | 446 | 1104 |
| 466 | Reproductive toxicology | 1 | 19 | 1104 | 1308 |
| 466 | Protozoa | 2 | 19 | 655 | 1066 |
| 466 | Vision | 1 | 19 | 1289 | 1571 |
| 473 | air quality | 2 | 17 | 389 | 755 |
| 473 | disabilities | 1 | 17 | 1633 | 1794 |
| 473 | Human biology | 2 | 17 | 974 | 1484 |
| 476 | Linguistics | 2 | 16 | 2185 | 2167 |
| 476 | Language Disorders | 1 | 16 | 1632 | 1753 |
| 476 | Neuropsychiatry | 1 | 16 | 1821 | 2179 |
| 476 | Phonetics | 1 | 16 | 646 | 720 |
| 476 | Speech Disorders | 1 | 16 | 1917 | 2103 |
| 476 | curriculum planning | 1 | 16 | 352 | 341 |
| 476 | Safety management | 2 | 16 | 984 | 1483 |
| 476 | migration policy | 1 | 16 | 478 | 594 |
| 476 | language | 1 | 16 | 1520 | 1581 |
| 485 | emergency management | 1 | 15 | 1921 | 2255 |
| 485 | Drug design | 2 | 15 | 2651 | 3899 |
| 485 | Molecular evolution | 1 | 15 | 3344 | 4098 |
| 485 | Heart Failure | 2 | 15 | 680 | 1216 |
| 485 | peptides | 2 | 15 | 1420 | 2083 |
| 485 | Bacterial infections | 2 | 15 | 1440 | 2639 |
| 485 | Cell surface receptors | 1 | 15 | 351 | 440 |
| 485 | proteins | 2 | 15 | 3173 | 4493 |
| 493 | Artificial Intelligence | 2 | 14 | 5146 | 6599 |
| 493 | Environmental Management | 4 | 14 | 3016 | 6399 |
| 493 | women's rights | 2 | 14 | 298 | 554 |
| 493 | Bioinformatics | 1 | 14 | 3992 | 4551 |
| 493 | Religion and Psychology | 2 | 14 | 806 | 1247 |
| 493 | Chromosomes | 2 | 14 | 1507 | 2528 |
| 493 | biomedicine | 1 | 14 | 2045 | 2589 |
| 493 | Zoonoses | 1 | 14 | 734 | 1078 |
| 501 | patient satisfaction | 3 | 13 | 145 | 309 |
| 501 | Immunochemistry | 1 | 13 | 2188 | 2527 |
| 501 | Respiratory system | 1 | 13 | 1308 | 1755 |
| 501 | China | 3 | 13 | 3582 | 6092 |
| 505 | Andrology | 1 | 12 | 1408 | 1792 |
| 505 | Microbial Biotechnology | 1 | 12 | 2045 | 2627 |
| 505 | Neuromuscular diseases | 3 | 12 | 883 | 1856 |
| 505 | Adult learning | 1 | 12 | 96 | 161 |
| 505 | Electroconvulsive therapy | 1 | 12 | 252 | 340 |
| 505 | non-formal education | 1 | 12 | 124 | 162 |
| 505 | gene transfer | 2 | 12 | 438 | 952 |
| 505 | genetic transformation | 2 | 12 | 438 | 952 |
| 513 | Religious Education | 4 | 11 | 99 | 219 |
| 513 | Clinical Psychology | 2 | 11 | 2188 | 3571 |
| 513 | Educational Sociology | 1 | 11 | 745 | 827 |
| 513 | International Education | 1 | 11 | 532 | 703 |
| 513 | Hegemony | 1 | 11 | 75 | 77 |
| 518 | Medical Sociology | 1 | 10 | 126 | 233 |
| 518 | Public Health Informatics | 6 | 10 | 65 | 163 |
| 518 | Animal Behavior | 1 | 10 | 3475 | 4465 |
| 518 | Language and Culture | 1 | 10 | 373 | 381 |
| 518 | Ethology | 1 | 10 | 2779 | 3693 |
| 518 | economic policy | 1 | 10 | 4522 | 4341 |
| 518 | Edible plants | 1 | 10 | 573 | 936 |
| 518 | Neurons | 2 | 10 | 1036 | 1977 |
| 518 | Administration | 1 | 10 | 198 | 287 |
| 527 | Philosophy | 1 | 9 | 2833 | 1965 |
| 527 | Nuclear Medicine | 3 | 9 | 1407 | 2444 |
| 527 | Distance Education | 2 | 9 | 690 | 1328 |
| 527 | Altitude Sickness | 1 | 9 | 377 | 548 |
| 527 | Gene expression | 1 | 9 | 647 | 960 |
| 527 | moral development | 1 | 9 | 215 | 378 |
| 527 | Moral Education | 1 | 9 | 318 | 441 |
| 527 | Gene expression regulation | 1 | 9 | 2140 | 2852 |
| 527 | Genetic regulation | 1 | 9 | 2399 | 3194 |
| 527 | Altitude | 1 | 9 | 377 | 548 |
| 527 | Multiple sclerosis | 3 | 9 | 774 | 1530 |
| 527 | brain diseases | 1 | 9 | 33 | 116 |
| 539 | Otolaryngology | 2 | 8 | 962 | 1659 |
| 539 | Journalism | 1 | 8 | 1036 | 1042 |
| 539 | Sports Medicine | 1 | 8 | 4665 | 4943 |
| 539 | Electrocardiography | 1 | 8 | 959 | 1059 |
| 539 | Risk assessment | 2 | 8 | 955 | 1949 |
| 539 | health and race | 1 | 8 | 560 | 953 |
| 539 | Substance Abuse | 2 | 8 | 2163 | 3671 |
| 539 | Multimedia Systems | 1 | 8 | 3133 | 3454 |
| 539 | Physical fitness | 1 | 8 | 1990 | 2510 |
| 539 | Electrophysiology | 1 | 8 | 2321 | 2763 |
| 539 | training | 6 | 8 | 37 | 230 |
| 539 | Health Risk Assessment | 2 | 8 | 730 | 1592 |
| 539 | Youth | 1 | 8 | 1316 | 1809 |
| 539 | children | 2 | 8 | 812 | 1481 |
| 553 | civil rights | 1 | 7 | 854 | 1008 |
| 553 | patents | 1 | 7 | 433 | 729 |
| 553 | Sexuality | 1 | 7 | 691 | 961 |
| 553 | immigrants | 1 | 7 | 115 | 170 |
| 553 | Post-traumatic stress disorder | 1 | 7 | 1535 | 2191 |
| 553 | sexual behavior | 1 | 7 | 1380 | 2001 |
| 559 | Genetic Counseling | 1 | 6 | 723 | 1050 |
| 559 | Integrative Medicine | 2 | 6 | 469 | 955 |
| 559 | Holistic Health | 2 | 6 | 704 | 1592 |
| 559 | Business | 1 | 6 | 3924 | 4665 |
| 559 | feeding behavior | 1 | 6 | 1552 | 2282 |
| 559 | anesthesia | 8 | 6 | 354 | 1530 |
| 559 | commerce | 1 | 6 | 2966 | 3537 |
| 559 | drug addiction | 1 | 6 | 2282 | 3274 |
| 559 | software | 1 | 6 | 2018 | 2970 |
| 559 | alcoholism | 1 | 6 | 2944 | 4084 |
| 559 | liver | 1 | 6 | 770 | 1211 |
| 559 | Appetite | 1 | 6 | 1390 | 2073 |
| 571 | Molecular Microbiology | 1 | 5 | 1723 | 2574 |
| 571 | Cytogenetics | 1 | 5 | 3085 | 4325 |
| 571 | Molecular Genetics | 1 | 5 | 3785 | 5228 |
| 571 | Ethnic relations | 2 | 5 | 843 | 1404 |
| 571 | Travel | 1 | 5 | 2058 | 2898 |
| 571 | Hallucinogens | 1 | 5 | 436 | 778 |
| 571 | nucleic acids | 1 | 5 | 3212 | 4372 |
| 571 | monitoring | 1 | 5 | 710 | 1071 |
| 571 | nucleotides | 1 | 5 | 737 | 969 |
| 571 | Enzyme | 1 | 5 | 1012 | 1710 |
| 571 | biological agents | 2 | 5 | 1003 | 1500 |
| 571 | Molecular structure | 1 | 5 | 4429 | 5540 |
| 571 | enzymes | 1 | 5 | 2921 | 4198 |
| 571 | Bacterial diseases | 1 | 5 | 635 | 1174 |
| 585 | Respiratory Therapy | 1 | 4 | 128 | 269 |
| 585 | Radiography | 1 | 4 | 1394 | 2024 |
| 585 | Psychosomatic Medicine | 1 | 4 | 1775 | 2639 |
| 585 | Genetic disorders | 1 | 4 | 1100 | 1654 |
| 585 | Radiation | 1 | 4 | 4152 | 5332 |
| 585 | Synchrotron Radiation | 1 | 4 | 833 | 1199 |
| 585 | Accreditation | 1 | 4 | 207 | 326 |
| 585 | Animal welfare | 1 | 4 | 757 | 1256 |
| 585 | Biometrics | 1 | 4 | 2136 | 2867 |
| 585 | Migration | 1 | 4 | 463 | 751 |
| 585 | gases | 1 | 4 | 128 | 269 |
| 585 | behavior therapy | 2 | 4 | 1222 | 2418 |
| 585 | Host-parasite interactions | 1 | 4 | 2507 | 3792 |
| 585 | scientific societies | 1 | 4 | 1818 | 2745 |
| 585 | Longevity | 1 | 4 | 461 | 942 |
| 600 | Soil Science | 2 | 3 | 2589 | 4473 |
| 600 | Veterinary Epidemiology | 1 | 3 | 143 | 290 |
| 600 | Neurovirology | 1 | 3 | 600 | 1096 |
| 600 | Organizational learning | 3 | 3 | 547 | 1869 |
| 600 | Politics | 1 | 3 | 1390 | 1347 |
| 600 | Lymphoma | 15 | 3 | 337 | 1455 |
| 600 | Biopolitics | 1 | 3 | 76 | 160 |
| 600 | Multiple Myeloma | 15 | 3 | 332 | 1431 |
| 600 | Program Evaluation | 1 | 3 | 230 | 469 |
| 600 | Human Capital | 3 | 3 | 277 | 1008 |
| 600 | urban health | 1 | 3 | 658 | 1289 |
| 600 | Drug delivery systems | 2 | 3 | 2242 | 4263 |
| 600 | Parturition | 1 | 3 | 14 | 33 |
| 600 | Learning | 5 | 3 | 1239 | 3838 |
| 600 | Soviet Union | 2 | 3 | 1115 | 2000 |
| 600 | evaluation | 1 | 3 | 411 | 747 |
| 600 | Autism | 1 | 3 | 1454 | 2226 |
| 617 | International Relations | 1 | 2 | 2258 | 2607 |
| 617 | Educational Leadership | 1 | 2 | 365 | 612 |
| 617 | Atmospheric Physics | 1 | 2 | 2782 | 3952 |
| 617 | Dialysis | 2 | 2 | 238 | 517 |
| 617 | economic indicators | 1 | 2 | 266 | 536 |
| 617 | Amyotrophic Lateral Sclerosis | 1 | 2 | 588 | 1024 |
| 617 | Kidney transplantation | 2 | 2 | 134 | 392 |
| 617 | nursing education | 1 | 2 | 311 | 474 |
| 617 | Frontotemporal lobar degeneration | 1 | 2 | 461 | 834 |
| 617 | Blended Learning | 1 | 2 | 76 | 215 |
| 617 | Cognitive Behavioral Therapy | 1 | 2 | 500 | 910 |
| 617 | Cognitive Therapy | 1 | 2 | 1289 | 2085 |
| 617 | Evidence-based practice | 1 | 2 | 330 | 340 |
| 617 | civil society | 1 | 2 | 142 | 303 |
| 617 | Pediatric Neuropsychology | 1 | 2 | 245 | 498 |
| 617 | Retinal diseases | 1 | 2 | 190 | 244 |
| 617 | Empathy | 1 | 2 | 86 | 156 |
| 617 | Hemophilia | 2 | 2 | 782 | 1548 |
| 617 | Health insurance | 3 | 2 | 561 | 1868 |
| 617 | child mental health | 1 | 2 | 944 | 1642 |
| 617 | Learning strategies | 1 | 2 | 87 | 245 |
| 617 | Social interaction | 1 | 2 | 639 | 1072 |
| 617 | government | 1 | 2 | 1476 | 1737 |
| 617 | Decision making | 3 | 2 | 1882 | 4946 |
| 641 | Nanotechnology | 1 | 1 | 7746 | 10051 |
| 641 | Psychoneuroimmunology | 1 | 1 | 1413 | 2169 |
| 641 | Immunohematology | 1 | 1 | 354 | 600 |
| 641 | Regenerative Medicine | 1 | 1 | 378 | 828 |
| 641 | Medical Physics | 3 | 1 | 2097 | 4160 |
| 641 | Multicultural Education | 1 | 1 | 775 | 1288 |
| 641 | Signal Processing | 1 | 1 | 3527 | 5061 |
| 641 | Human-Computer Interaction | 1 | 1 | 2997 | 4724 |
| 641 | Developmental Biology | 1 | 1 | 3792 | 5435 |
| 641 | Molecular Imaging | 1 | 1 | 1378 | 2109 |
| 641 | Neuroimmunology | 1 | 1 | 1541 | 2414 |
| 641 | Social Systems | 1 | 1 | 585 | 1085 |
| 641 | Nanostructures | 1 | 1 | 4023 | 5642 |
| 641 | Materials | 1 | 1 | 8893 | 11080 |
| 641 | Traditional medicine | 1 | 1 | 697 | 1330 |
| 641 | Blood group antigens | 1 | 1 | 222 | 417 |
| 641 | Germany | 1 | 1 | 1605 | 2228 |
| 641 | Gender mainstreaming | 1 | 1 | 48 | 38 |
| 641 | Cell metabolism | 2 | 1 | 1132 | 2531 |
| 641 | Coronary heart disease | 1 | 1 | 613 | 976 |
| 641 | Social structure | 1 | 1 | 71 | 94 |
| 641 | Pancreatic diseases | 1 | 1 | 1112 | 1316 |
| 663 | History | 1 | 0 | 2040 | 2180 |
| 663 | Medical Imaging | 1 | 0 | 749 | 1098 |
| 663 | Ergonomics | 1 | 0 | 2128 | 3252 |
| 663 | Special Education | 1 | 0 | 1572 | 2483 |
| 663 | Community Psychology | 1 | 0 | 1165 | 2112 |
| 663 | Magnetic Resonance Imaging | 1 | 0 | 1239 | 2041 |
| 663 | Solid State Physics | 1 | 0 | 5593 | 7380 |
| 663 | Rural Development | 1 | 0 | 1261 | 2114 |
| 663 | Theology | 1 | 0 | 1647 | 1809 |
| 663 | Biochemical Genetics | 1 | 0 | 1084 | 1889 |
| 663 | Psychopharmacology | 1 | 0 | 3069 | 4473 |
| 663 | cultural policy | 1 | 0 | 451 | 832 |
| 663 | Psychoanalysis | 1 | 0 | 838 | 1296 |
| 663 | Neuroendocrinology | 1 | 0 | 348 | 662 |
| 663 | Mass Media | 2 | 0 | 1355 | 2639 |
| 663 | Neuropharmacology | 1 | 0 | 1262 | 2196 |
| 663 | Organ transplantation | 1 | 0 | 862 | 1405 |
| 663 | Pharmacy management | 1 | 0 | 766 | 1249 |
| 663 | Brachytherapy | 1 | 0 | 675 | 905 |
| 663 | Church History | 1 | 0 | 259 | 343 |
| 663 | Communications | 1 | 0 | 71 | 151 |
| 663 | families | 1 | 0 | 1684 | 2840 |
| 663 | psychoanalytic therapy | 1 | 0 | 252 | 436 |
| 663 | Social behavior | 1 | 0 | 2279 | 3747 |
| 663 | media | 1 | 0 | 71 | 151 |
| 663 | free radicals | 1 | 0 | 2758 | 3936 |
| 663 | North Africa | 1 | 0 | 433 | 777 |
| 663 | values | 1 | 0 | 560 | 888 |
| 663 | RNA | 1 | 0 | 1082 | 1825 |
| 663 | Endocrine system | 5 | 0 | 858 | 1909 |
| 663 | Islamic civilization | 2 | 0 | 197 | 366 |
