| 1 | Public Health | 623 | 30.2K | 144 | 129 |
| 2 | Medicine | 742 | 24.0K | 405 | 499 |
| 3 | Liver diseases | 63 | 13.3K | 200 | 73 |
| 4 | Science | 337 | 10.8K | 719 | 1050 |
| 5 | Epidemiology | 230 | 9.9K | 202 | 192 |
| 6 | Oncology | 29 | 7.5K | 507 | 239 |
| 7 | Research | 380 | 7.3K | 560 | 812 |
| 8 | Pediatrics | 108 | 6.4K | 236 | 205 |
| 9 | Biology | 147 | 5.3K | 1124 | 1499 |
| 10 | Contraception | 113 | 5.2K | 16 | 10 |
| 11 | Reproductive health | 115 | 5.2K | 9 | 6 |
| 12 | Birth control | 111 | 5.1K | 8 | 6 |
| 13 | Obstetrics | 123 | 4.7K | 207 | 162 |
| 14 | Psychiatry | 85 | 4.6K | 651 | 534 |
| 15 | Microbiology | 83 | 4.4K | 1138 | 1015 |
| 16 | Mental Disorders | 60 | 4.1K | 442 | 370 |
| 17 | Nutrition | 140 | 4.0K | 399 | 511 |
| 18 | Leukemia | 3 | 3.7K | 720 | 139 |
| 19 | Molecular Biology | 66 | 3.5K | 1684 | 1412 |
| 20 | Biochemistry | 138 | 3.5K | 1431 | 1579 |
| 21 | Human genetics | 13 | 3.3K | 831 | 655 |
| 22 | Pharmacognosy | 39 | 3.2K | 348 | 147 |
| 23 | Medicinal plants | 36 | 3.2K | 209 | 78 |
| 24 | Physics | 24 | 2.9K | 3368 | 2108 |
| 25 | Vaccines | 85 | 2.9K | 150 | 151 |
| 26 | Neurology | 101 | 2.9K | 820 | 971 |
| 27 | Adolescent Medicine | 8 | 2.8K | 265 | 80 |
| 28 | Pharmacology | 61 | 2.7K | 1125 | 890 |
| 29 | Neurochemistry | 35 | 2.7K | 638 | 412 |
| 30 | Natural history | 12 | 2.7K | 1509 | 1258 |
| 31 | Pregnancy | 75 | 2.5K | 27 | 30 |
| 32 | Hypertension | 23 | 2.4K | 456 | 360 |
| 33 | Diet | 59 | 2.3K | 290 | 389 |
| 34 | Cardiovascular system | 21 | 2.1K | 457 | 385 |
| 35 | medical education | 175 | 2.0K | 102 | 211 |
| 36 | Primary health care | 83 | 1.9K | 144 | 188 |
| 37 | Parasitology | 47 | 1.9K | 407 | 268 |
| 38 | Health Services Research | 79 | 1.7K | 156 | 225 |
| 39 | Global Health | 113 | 1.6K | 27 | 62 |
| 40 | Emergency Medicine | 56 | 1.6K | 181 | 135 |
| 41 | Psychology | 49 | 1.6K | 1099 | 955 |
| 42 | Health Policy | 42 | 1.6K | 440 | 343 |
| 43 | Diabetes | 19 | 1.5K | 681 | 511 |
| 44 | Diabetes mellitus | 17 | 1.5K | 690 | 494 |
| 45 | Endocrinology | 20 | 1.4K | 955 | 775 |
| 45 | Medical Microbiology | 33 | 1.4K | 544 | 600 |
| 47 | Diagnostic microbiology | 19 | 1.4K | 347 | 351 |
| 48 | Tropical Medicine | 33 | 1.4K | 326 | 187 |
| 49 | Environmental Health | 32 | 1.3K | 1611 | 1479 |
| 50 | Perception | 17 | 1.3K | 655 | 404 |
| 51 | Attention | 17 | 1.3K | 578 | 341 |
| 52 | Visual Perception | 16 | 1.3K | 575 | 338 |
| 52 | Memory | 16 | 1.3K | 657 | 428 |
| 54 | Parasitic Diseases | 15 | 1.2K | 765 | 359 |
| 55 | Developing countries | 62 | 1.2K | 265 | 407 |
| 56 | Toxicology | 26 | 1.2K | 1539 | 1320 |
| 57 | Virology | 26 | 1.0K | 838 | 1025 |
| 57 | Alternative Medicine | 29 | 1.0K | 232 | 177 |
| 59 | complementary therapies | 28 | 997 | 269 | 199 |
| 60 | Cancer | 48 | 981 | 698 | 1002 |
| 61 | Chemistry | 22 | 977 | 3621 | 3164 |
| 62 | Allergy | 13 | 975 | 439 | 454 |
| 63 | Sociology | 30 | 956 | 809 | 706 |
| 63 | Medical genetics | 22 | 956 | 801 | 851 |
| 65 | Biophysics | 17 | 918 | 2199 | 1744 |
| 66 | Women's health | 39 | 916 | 166 | 182 |
| 67 | Child | 74 | 899 | 282 | 542 |
| 68 | Genomics | 13 | 839 | 1333 | 915 |
| 69 | diseases | 31 | 831 | 11 | 332 |
| 70 | Socioeconomic Factors | 17 | 812 | 199 | 125 |
| 71 | Infections | 17 | 809 | 354 | 385 |
| 71 | infection | 18 | 809 | 539 | 489 |
| 73 | Adolescent | 52 | 795 | 330 | 518 |
| 74 | Physiology | 21 | 786 | 1486 | 1360 |
| 75 | Urology | 34 | 749 | 379 | 454 |
| 76 | Environment | 8 | 741 | 2855 | 2292 |
| 77 | disease vectors | 8 | 735 | 507 | 199 |
| 78 | Parasites | 8 | 718 | 935 | 368 |
| 79 | Medical Anthropology | 19 | 716 | 384 | 442 |
| 80 | health services accessibility | 72 | 702 | 53 | 191 |
| 81 | Surgery | 34 | 697 | 366 | 641 |
| 82 | Malaria | 20 | 686 | 152 | 148 |
| 83 | Cardiovascular diseases | 34 | 684 | 363 | 456 |
| 84 | Demography | 4 | 673 | 540 | 170 |
| 84 | Population | 4 | 673 | 717 | 218 |
| 86 | Genetics | 8 | 661 | 1901 | 1396 |
| 87 | Nutrition physiology | 17 | 648 | 191 | 202 |
| 88 | health planning | 21 | 647 | 701 | 517 |
| 89 | Emergency Medical Services | 29 | 645 | 79 | 74 |
| 90 | Immunology | 24 | 637 | 1002 | 1198 |
| 91 | Asia | 53 | 620 | 313 | 533 |
| 92 | Nursing | 37 | 601 | 363 | 394 |
| 93 | Environmental Toxicology | 5 | 599 | 1853 | 974 |
| 94 | Suicide | 18 | 595 | 126 | 124 |
| 95 | Pathology | 32 | 594 | 530 | 752 |
| 96 | poverty | 9 | 560 | 122 | 51 |
| 96 | healthcare disparities | 9 | 560 | 203 | 77 |
| 98 | Child Development | 29 | 557 | 519 | 733 |
| 99 | Health Services Administration | 17 | 555 | 258 | 246 |
| 99 | Hemodynamics | 4 | 555 | 455 | 295 |
| 101 | Gastrointestinal diseases | 18 | 550 | 112 | 95 |
| 102 | breastfeeding | 19 | 541 | 84 | 79 |
| 103 | Education | 34 | 513 | 989 | 1088 |
| 104 | Hematology | 39 | 496 | 615 | 889 |
| 105 | Research Design | 8 | 492 | 621 | 433 |
| 106 | Orthopedics | 11 | 464 | 678 | 520 |
| 107 | Crisis Intervention | 15 | 462 | 23 | 26 |
| 108 | Developmental Psychology | 11 | 460 | 500 | 469 |
| 109 | Metabolism | 17 | 453 | 925 | 1161 |
| 110 | Globalization | 7 | 452 | 301 | 128 |
| 110 | international cooperation | 7 | 452 | 328 | 192 |
| 112 | health services | 32 | 434 | 177 | 318 |
| 113 | Health | 23 | 430 | 617 | 792 |
| 114 | Lung Transplantation | 1 | 428 | 477 | 158 |
| 114 | Heart transplantation | 1 | 428 | 477 | 158 |
| 116 | Child psychology | 12 | 427 | 648 | 713 |
| 117 | Medical Ethics | 20 | 417 | 336 | 269 |
| 117 | Middle East | 32 | 417 | 124 | 162 |
| 119 | Disease | 1 | 416 | 533 | 409 |
| 120 | Psychophysiology | 10 | 409 | 1413 | 1332 |
| 121 | Neurosurgery | 15 | 384 | 362 | 425 |
| 121 | Mental illness | 9 | 384 | 937 | 947 |
| 123 | risk factors | 13 | 381 | 248 | 270 |
| 124 | Clinical Biochemistry | 24 | 379 | 272 | 445 |
| 125 | Mental Health | 17 | 378 | 537 | 566 |
| 126 | Medical Technology | 21 | 362 | 398 | 630 |
| 127 | health workforce | 10 | 360 | 49 | 73 |
| 128 | Digestive system diseases | 10 | 349 | 444 | 390 |
| 129 | Critical Care | 16 | 348 | 511 | 799 |
| 129 | Dementia | 21 | 348 | 446 | 431 |
| 129 | Alzheimer's disease | 21 | 348 | 456 | 469 |
| 132 | Botany | 3 | 347 | 3151 | 1961 |
| 133 | Critical Care Medicine | 15 | 346 | 518 | 800 |
| 134 | Community Psychiatry | 5 | 343 | 637 | 429 |
| 135 | Medical Oncology | 35 | 341 | 362 | 794 |
| 136 | Evidence-Based Medicine | 7 | 330 | 348 | 216 |
| 137 | Ethics | 9 | 321 | 462 | 279 |
| 138 | Food | 10 | 320 | 1711 | 1756 |
| 139 | Kidney diseases | 13 | 317 | 328 | 401 |
| 140 | Brain | 14 | 312 | 1181 | 1335 |
| 141 | Medical Laboratory Science | 13 | 299 | 857 | 1183 |
| 142 | Nutritional support | 6 | 294 | 82 | 87 |
| 143 | Neurophysiology | 6 | 291 | 1764 | 1494 |
| 144 | Chromosome mapping | 4 | 289 | 1346 | 989 |
| 144 | United States | 17 | 289 | 2003 | 2243 |
| 144 | gene mapping | 4 | 289 | 1450 | 1104 |
| 147 | Public Policy | 10 | 282 | 864 | 876 |
| 148 | Biocompatible Materials | 3 | 278 | 2928 | 2283 |
| 149 | Telemedicine | 3 | 275 | 291 | 126 |
| 150 | Muscles | 4 | 271 | 624 | 496 |
| 151 | Lipids | 6 | 267 | 831 | 800 |
| 152 | Herbal medicine | 5 | 266 | 489 | 405 |
| 153 | refugees | 9 | 265 | 70 | 59 |
| 154 | War | 8 | 260 | 61 | 40 |
| 154 | warfare | 8 | 260 | 134 | 166 |
| 156 | Atherosclerosis | 21 | 258 | 12 | 69 |
| 156 | Sarcopenia | 1 | 258 | 623 | 281 |
| 158 | Social Sciences | 13 | 250 | 1621 | 1458 |
| 159 | Metabolic syndrome | 3 | 239 | 234 | 66 |
| 160 | Climatology | 1 | 238 | 2343 | 1099 |
| 160 | bioclimatology | 1 | 238 | 1589 | 451 |
| 160 | Climate | 1 | 238 | 1028 | 322 |
| 160 | weather | 1 | 238 | 1000 | 283 |
| 164 | behavioral medicine | 7 | 237 | 744 | 926 |
| 165 | Transplantation | 5 | 231 | 633 | 614 |
| 166 | Ophthalmology | 13 | 229 | 805 | 934 |
| 166 | Immunotherapy | 12 | 229 | 754 | 1111 |
| 166 | Immunity | 14 | 229 | 698 | 1273 |
| 169 | Economic Development | 10 | 228 | 772 | 1020 |
| 170 | Pacific Islands | 25 | 227 | 24 | 50 |
| 171 | Randomized Controlled Trials | 16 | 225 | 326 | 367 |
| 172 | world | 5 | 223 | 514 | 574 |
| 173 | Mathematics | 17 | 219 | 2965 | 2689 |
| 173 | rare diseases | 3 | 219 | 533 | 332 |
| 175 | cross-cultural comparison | 18 | 217 | 84 | 187 |
| 176 | Cross-Cultural Studies | 17 | 216 | 129 | 307 |
| 177 | Orthopedic Surgery | 5 | 209 | 523 | 355 |
| 178 | Immune system | 9 | 208 | 468 | 767 |
| 179 | occupational diseases | 10 | 199 | 337 | 497 |
| 180 | Virulence | 4 | 195 | 807 | 924 |
| 180 | human development | 7 | 195 | 494 | 563 |
| 182 | Antibacterial agents | 4 | 194 | 499 | 434 |
| 183 | gastrointestinal tract | 1 | 192 | 552 | 316 |
| 184 | Educational Technology | 6 | 187 | 1132 | 1064 |
| 184 | Sleep | 8 | 187 | 817 | 847 |
| 186 | Mycology | 7 | 186 | 974 | 1035 |
| 187 | Sleep Disorders | 7 | 185 | 855 | 847 |
| 188 | adolescence | 6 | 183 | 612 | 606 |
| 188 | Hypertension in pregnancy | 8 | 183 | 55 | 53 |
| 190 | Diagnostic Imaging | 20 | 181 | 568 | 1025 |
| 191 | Food Policy | 3 | 178 | 301 | 257 |
| 191 | psychotherapy | 3 | 178 | 1162 | 798 |
| 191 | Agriculture | 3 | 178 | 2033 | 1331 |
| 194 | Information Technology | 4 | 177 | 2154 | 1575 |
| 194 | Earth Sciences | 3 | 177 | 2946 | 2030 |
| 196 | Economic History | 10 | 176 | 1776 | 1709 |
| 196 | mycoses | 5 | 176 | 527 | 670 |
| 198 | Environmental Policy | 6 | 173 | 2264 | 2603 |
| 198 | gene therapy | 4 | 173 | 729 | 717 |
| 198 | Obesity | 9 | 173 | 961 | 1340 |
| 201 | Geriatrics | 13 | 172 | 1216 | 1596 |
| 201 | vascular diseases | 3 | 172 | 605 | 535 |
| 201 | violence | 7 | 172 | 596 | 670 |
| 201 | sex crimes | 7 | 172 | 379 | 397 |
| 205 | Engineering | 16 | 171 | 1917 | 2476 |
| 205 | Sustainable Development | 4 | 171 | 1767 | 1550 |
| 205 | biochemical markers | 3 | 171 | 583 | 318 |
| 208 | Immunogenetics | 2 | 170 | 661 | 377 |
| 208 | Genetic therapy | 2 | 170 | 981 | 725 |
| 210 | air quality management | 3 | 167 | 504 | 336 |
| 211 | Computer Science | 14 | 165 | 837 | 1082 |
| 212 | Health Education | 12 | 164 | 826 | 1083 |
| 213 | Pharmacy | 3 | 162 | 1821 | 1393 |
| 214 | Social Psychology | 8 | 161 | 1307 | 1543 |
| 215 | indoor air pollution | 2 | 159 | 472 | 261 |
| 215 | Ventilation | 2 | 159 | 656 | 308 |
| 215 | Sick building syndrome | 2 | 159 | 472 | 261 |
| 215 | Psychiatric Epidemiology | 3 | 159 | 440 | 395 |
| 219 | Adolescent Psychology | 4 | 158 | 657 | 585 |
| 220 | Gerontology | 8 | 157 | 1090 | 1040 |
| 221 | Dermatology | 10 | 155 | 813 | 958 |
| 221 | environmental pollution | 4 | 155 | 3432 | 3369 |
| 221 | Pollution | 4 | 155 | 4021 | 3973 |
| 224 | Environmental monitoring | 7 | 154 | 2522 | 3077 |
| 224 | Mental Health Services | 5 | 154 | 807 | 736 |
| 224 | Behavior | 9 | 154 | 1692 | 2435 |
| 227 | Antiviral agents | 4 | 153 | 198 | 169 |
| 227 | Europe | 17 | 153 | 1166 | 1670 |
| 229 | General Surgery | 8 | 150 | 301 | 286 |
| 230 | Cytology | 8 | 144 | 2139 | 2679 |
| 230 | Oral Medicine | 20 | 144 | 158 | 366 |
| 232 | rehabilitation | 7 | 141 | 1304 | 1497 |
| 233 | pain | 6 | 140 | 801 | 960 |
| 234 | United Kingdom | 4 | 139 | 1135 | 1069 |
| 235 | sustainability | 2 | 137 | 1087 | 827 |
| 236 | Metabolic diseases | 12 | 135 | 935 | 1587 |
| 237 | Career development | 7 | 133 | 201 | 234 |
| 238 | Anatomy | 8 | 130 | 1127 | 1306 |
| 238 | Palliative Care | 17 | 130 | 234 | 467 |
| 238 | drug therapy | 8 | 130 | 1035 | 1286 |
| 241 | drug resistance | 6 | 127 | 408 | 569 |
| 242 | Occupational Health | 12 | 126 | 393 | 643 |
| 243 | phototherapy | 17 | 121 | 7 | 16 |
| 244 | Immunopathology | 9 | 119 | 598 | 926 |
| 244 | preventive medicine | 5 | 119 | 834 | 973 |
| 246 | Biomedical Engineering | 6 | 118 | 3209 | 3549 |
| 247 | Geography | 2 | 117 | 2195 | 1554 |
| 247 | Geology | 2 | 117 | 2827 | 2026 |
| 247 | Oceanography | 2 | 117 | 1733 | 1319 |
| 247 | Human Geography | 2 | 117 | 1263 | 762 |
| 247 | Regional Planning | 2 | 117 | 1660 | 1121 |
| 247 | Clinical Pharmacology | 4 | 117 | 973 | 951 |
| 253 | human behavior | 2 | 116 | 2596 | 2397 |
| 254 | Nephrology | 7 | 115 | 268 | 511 |
| 255 | Educational Psychology | 4 | 114 | 1186 | 1144 |
| 255 | Bacteriology | 2 | 114 | 1808 | 1603 |
| 257 | Chemotherapy | 5 | 113 | 800 | 898 |
| 257 | Stem cells | 13 | 113 | 596 | 1096 |
| 259 | Library Science | 8 | 111 | 489 | 399 |
| 259 | Quality of life | 4 | 111 | 1184 | 1319 |
| 261 | Radiology | 7 | 110 | 804 | 825 |
| 262 | Environmental Geochemistry | 3 | 109 | 559 | 426 |
| 262 | biological factors | 6 | 109 | 1330 | 1547 |
| 262 | Minerals | 3 | 109 | 795 | 653 |
| 262 | Information Science | 8 | 109 | 1593 | 2211 |
| 266 | personality | 1 | 108 | 2040 | 1403 |
| 267 | Pediatric Neurology | 5 | 106 | 584 | 907 |
| 267 | nuclear magnetic resonance | 1 | 106 | 1262 | 678 |
| 267 | Magnetic Resonance Spectroscopy | 1 | 106 | 1456 | 750 |
| 267 | cardiac catheterization | 8 | 106 | 331 | 360 |
| 271 | Immunopharmacology | 4 | 105 | 849 | 908 |
| 271 | cytokines | 4 | 105 | 944 | 1116 |
| 273 | Therapeutics | 5 | 104 | 1066 | 1301 |
| 274 | Child welfare | 5 | 103 | 837 | 837 |
| 274 | management | 4 | 103 | 2857 | 2845 |
| 276 | Maternal health services | 4 | 102 | 299 | 318 |
| 277 | older people | 7 | 100 | 956 | 942 |
| 277 | disease outbreaks | 1 | 100 | 745 | 525 |
| 277 | Epidemics | 1 | 100 | 712 | 521 |
| 280 | Cell Biology | 6 | 99 | 2230 | 2880 |
| 280 | hospice care | 13 | 99 | 159 | 360 |
| 280 | Osteoporosis | 9 | 99 | 104 | 266 |
| 280 | Bone diseases | 9 | 99 | 178 | 504 |
| 280 | viruses | 3 | 99 | 1118 | 1277 |
| 285 | X-rays | 4 | 97 | 442 | 350 |
| 286 | Biotechnology | 6 | 96 | 3505 | 4284 |
| 286 | School Psychology | 2 | 96 | 554 | 453 |
| 286 | school psychologists | 2 | 96 | 245 | 228 |
| 289 | Rheumatology | 11 | 95 | 508 | 921 |
| 290 | Neurobiology | 5 | 94 | 1099 | 1477 |
| 290 | Phytotherapy | 2 | 94 | 862 | 680 |
| 290 | Aging | 8 | 94 | 1468 | 1930 |
| 293 | Comparative Education | 4 | 93 | 157 | 125 |
| 294 | Development | 9 | 92 | 371 | 877 |
| 295 | Antibodies | 1 | 90 | 778 | 486 |
| 295 | Antigens | 1 | 90 | 955 | 620 |
| 297 | Neonatology | 5 | 89 | 397 | 507 |
| 297 | health behavior | 6 | 89 | 596 | 828 |
| 297 | Diagnosis | 1 | 89 | 657 | 312 |
| 297 | disease susceptibility | 1 | 89 | 112 | 68 |
| 297 | symptoms | 1 | 89 | 112 | 68 |
| 302 | Pediatric Hematology | 13 | 88 | 97 | 181 |
| 303 | Functional foods | 1 | 87 | 699 | 389 |
| 303 | drug evaluation | 5 | 87 | 932 | 1170 |
| 305 | Pharmaceutical Chemistry | 4 | 86 | 2685 | 2836 |
| 305 | Infection control | 3 | 86 | 286 | 355 |
| 305 | Africa | 19 | 86 | 444 | 985 |
| 308 | Pediatric Rheumatology | 9 | 85 | 74 | 165 |
| 309 | Social Issues | 2 | 83 | 335 | 295 |
| 309 | Social problems | 2 | 83 | 726 | 647 |
| 309 | child abuse | 6 | 83 | 537 | 867 |
| 312 | Biomarkers | 2 | 82 | 515 | 329 |
| 313 | Vaccination | 2 | 79 | 296 | 271 |
| 313 | environmental exposure | 6 | 79 | 1318 | 2057 |
| 313 | Pathogens | 3 | 79 | 77 | 84 |
| 316 | Teaching | 6 | 78 | 1226 | 1479 |
| 317 | blood transfusion | 8 | 73 | 305 | 467 |
| 318 | Psychiatric Nursing | 6 | 72 | 448 | 613 |
| 318 | epilepsy | 6 | 72 | 572 | 817 |
| 318 | toxicity testing | 1 | 72 | 1064 | 713 |
| 318 | Culture | 6 | 72 | 746 | 781 |
| 322 | Enzyme inhibitors | 2 | 71 | 530 | 439 |
| 323 | Geriatric Psychiatry | 2 | 70 | 1040 | 959 |
| 323 | Feasibility studies | 11 | 70 | 84 | 143 |
| 323 | Geriatric Oncology | 2 | 70 | 600 | 616 |
| 323 | drug abuse | 5 | 70 | 455 | 587 |
| 327 | Humanities | 5 | 69 | 1438 | 1360 |
| 327 | Thorax | 3 | 69 | 338 | 460 |
| 329 | Nervous system | 6 | 68 | 1503 | 2169 |
| 330 | Ethnology | 3 | 67 | 1454 | 1128 |
| 331 | Environmental Microbiology | 2 | 66 | 1514 | 1708 |
| 331 | soil microbiology | 2 | 66 | 1565 | 1898 |
| 333 | harm reduction | 4 | 65 | 138 | 211 |
| 334 | Clinical Chemistry | 40 | 64 | 618 | 2383 |
| 335 | Neuropsychology | 5 | 63 | 1589 | 2099 |
| 335 | Surgical Oncology | 8 | 63 | 3 | 5 |
| 335 | kidney | 2 | 63 | 84 | 105 |
| 338 | ovary | 2 | 62 | 246 | 242 |
| 338 | planning | 3 | 62 | 769 | 772 |
| 340 | Clinical Laboratory Science | 6 | 61 | 89 | 178 |
| 341 | industrial hygiene | 7 | 60 | 572 | 784 |
| 342 | Reproduction | 6 | 59 | 1422 | 1913 |
| 343 | Industrial Safety | 6 | 57 | 791 | 1279 |
| 343 | Respiration | 5 | 57 | 992 | 1459 |
| 343 | drug control | 2 | 57 | 425 | 431 |
| 346 | Economic Assistance | 3 | 56 | 682 | 991 |
| 346 | eugenics | 2 | 56 | 621 | 578 |
| 348 | Carcinogenesis | 2 | 55 | 981 | 1120 |
| 348 | Cognitive neuroscience | 1 | 55 | 1337 | 1151 |
| 348 | Enteral nutrition | 2 | 55 | 848 | 1013 |
| 348 | Action Research | 4 | 55 | 180 | 233 |
| 348 | Parenteral nutrition | 2 | 55 | 969 | 1119 |
| 348 | Cardiopulmonary Resuscitation | 7 | 55 | 67 | 86 |
| 348 | cardiac arrest | 7 | 55 | 67 | 86 |
| 348 | men | 3 | 55 | 287 | 359 |
| 348 | Hospitals | 5 | 55 | 234 | 354 |
| 348 | Cognition | 1 | 55 | 2226 | 1715 |
| 358 | Bioethics | 5 | 54 | 683 | 875 |
| 358 | Hormones | 1 | 54 | 1548 | 1314 |
| 358 | Communication | 6 | 54 | 1424 | 2085 |
| 358 | Steroids | 1 | 54 | 1290 | 1004 |
| 362 | Regeneration | 1 | 52 | 134 | 91 |
| 363 | histological techniques | 2 | 51 | 699 | 839 |
| 363 | Qualitative Research | 3 | 51 | 516 | 600 |
| 365 | disaster relief | 4 | 50 | 141 | 309 |
| 366 | Bioengineering | 2 | 49 | 3921 | 4054 |
| 366 | Histochemistry | 2 | 49 | 1125 | 1045 |
| 366 | India | 7 | 49 | 812 | 1093 |
| 369 | Anti-inflammatory agents | 2 | 48 | 323 | 343 |
| 369 | Smoking | 5 | 48 | 510 | 955 |
| 369 | Eating Disorders | 1 | 48 | 1193 | 977 |
| 369 | Feeding and Eating Disorders | 1 | 48 | 1145 | 943 |
| 369 | Inflammation | 2 | 48 | 1175 | 1437 |
| 374 | Asthma | 2 | 46 | 742 | 691 |
| 374 | nursing ethics | 3 | 46 | 224 | 418 |
| 374 | Health promotion | 5 | 46 | 833 | 1192 |
| 377 | society | 1 | 45 | 199 | 95 |
| 378 | Higher Education | 1 | 44 | 1101 | 749 |
| 378 | tests | 1 | 44 | 371 | 338 |
| 380 | Microbial Ecology | 1 | 43 | 2707 | 2779 |
| 380 | Artificial Organs | 1 | 43 | 828 | 595 |
| 382 | Evolutionary Genetics | 5 | 42 | 451 | 970 |
| 382 | Molecular Epidemiology | 5 | 42 | 451 | 970 |
| 382 | natural products | 5 | 42 | 1393 | 1934 |
| 382 | traffic safety | 4 | 42 | 229 | 403 |
| 386 | Emerging infectious diseases | 1 | 41 | 559 | 566 |
| 386 | Social policy | 4 | 41 | 891 | 1171 |
| 386 | Synapses | 1 | 41 | 419 | 402 |
| 389 | Ecology | 2 | 40 | 5464 | 6044 |
| 389 | Elderly | 4 | 40 | 987 | 935 |
| 389 | data collection | 5 | 40 | 762 | 1506 |
| 392 | Economics | 1 | 39 | 4458 | 3537 |
| 392 | stem cell transplantation | 9 | 39 | 30 | 56 |
| 394 | women | 2 | 38 | 1098 | 871 |
| 395 | Quality Control | 2 | 37 | 2035 | 2357 |
| 395 | hygiene | 1 | 37 | 879 | 786 |
| 397 | Clinical Psychology | 2 | 36 | 1277 | 1482 |
| 397 | drug development | 3 | 36 | 799 | 1390 |
| 397 | Chronic diseases | 6 | 36 | 406 | 860 |
| 400 | Occupational Therapy | 4 | 35 | 843 | 934 |
| 400 | Genetic testing | 5 | 35 | 190 | 392 |
| 402 | Histology | 2 | 34 | 1818 | 2140 |
| 402 | Cardiovascular Pharmacology | 1 | 34 | 437 | 438 |
| 402 | Signal Transduction | 2 | 34 | 1424 | 1798 |
| 402 | energy development | 2 | 34 | 1099 | 1435 |
| 406 | Religion and Culture | 1 | 33 | 563 | 361 |
| 407 | Hydrology | 1 | 32 | 3137 | 2807 |
| 407 | Neonatal Nursing | 1 | 32 | 272 | 101 |
| 407 | Obstetric Nursing | 1 | 32 | 404 | 368 |
| 407 | Water | 1 | 32 | 3070 | 3188 |
| 407 | Water quality management | 1 | 32 | 2597 | 2299 |
| 407 | pain management | 4 | 32 | 469 | 778 |
| 407 | Infertility | 1 | 32 | 987 | 1120 |
| 407 | Water Microbiology | 1 | 32 | 875 | 841 |
| 407 | cultural pluralism | 3 | 32 | 418 | 611 |
| 407 | fertility | 1 | 32 | 1067 | 1191 |
| 417 | Pediatric Endocrinology | 5 | 31 | 209 | 348 |
| 417 | Neurotoxicology | 1 | 31 | 961 | 1074 |
| 417 | Clinical Immunology | 2 | 31 | 1005 | 1293 |
| 417 | Social History | 4 | 31 | 458 | 471 |
| 417 | Family | 1 | 31 | 1488 | 1278 |
| 417 | Metabolic disorders in children | 5 | 31 | 174 | 312 |
| 423 | Anthropological Linguistics | 4 | 30 | 183 | 186 |
| 424 | Dietetics | 3 | 29 | 551 | 749 |
| 424 | Critical Pedagogy | 2 | 29 | 95 | 115 |
| 424 | Heart Failure | 2 | 29 | 385 | 586 |
| 427 | Educational Research | 1 | 28 | 213 | 170 |
| 427 | Radiobiology | 9 | 28 | 647 | 1439 |
| 427 | Communication in medicine | 3 | 28 | 520 | 844 |
| 427 | drugs | 2 | 28 | 2029 | 2465 |
| 427 | Australia | 4 | 28 | 1537 | 2256 |
| 432 | Emergency Nursing | 1 | 27 | 298 | 249 |
| 432 | Geriatric Pharmacology | 1 | 27 | 426 | 460 |
| 432 | Applied Linguistics | 2 | 27 | 770 | 798 |
| 432 | Sexual health | 6 | 27 | 428 | 889 |
| 436 | Industrial Microbiology | 2 | 26 | 2123 | 2817 |
| 436 | Multilingualism | 1 | 26 | 542 | 547 |
| 436 | Holistic Health | 3 | 26 | 455 | 736 |
| 439 | Environmental Engineering | 1 | 25 | 4533 | 4513 |
| 439 | Early Childhood Education | 4 | 25 | 514 | 859 |
| 439 | Environmental Law | 1 | 25 | 1590 | 1923 |
| 439 | Public Administration | 2 | 25 | 1568 | 1650 |
| 439 | environmental protection | 1 | 25 | 4425 | 4500 |
| 439 | Behavioral research | 4 | 25 | 468 | 949 |
| 439 | pollutants | 1 | 25 | 2620 | 2887 |
| 439 | Screening | 1 | 25 | 356 | 348 |
| 439 | Environmental pollutants | 1 | 25 | 2987 | 3188 |
| 439 | Islam | 3 | 25 | 480 | 608 |
| 439 | child behavior | 3 | 25 | 376 | 649 |
| 450 | Computational Biology | 3 | 24 | 2209 | 3123 |
| 450 | patient satisfaction | 4 | 24 | 80 | 144 |
| 450 | Technology | 4 | 24 | 3018 | 4191 |
| 450 | School Improvement Programs | 3 | 24 | 21 | 77 |
| 450 | Spine | 2 | 24 | 650 | 904 |
| 455 | Statistics | 1 | 23 | 3136 | 2530 |
| 455 | Clinical Trials | 1 | 23 | 742 | 690 |
| 455 | Morphology | 1 | 23 | 1379 | 1107 |
| 455 | Animal health | 1 | 23 | 795 | 653 |
| 455 | Photochemistry | 1 | 23 | 2351 | 2447 |
| 455 | Photobiology | 1 | 23 | 2047 | 2133 |
| 455 | Microorganisms | 1 | 23 | 1454 | 1689 |
| 462 | Law | 2 | 22 | 1425 | 1132 |
| 462 | Religious Education | 6 | 22 | 60 | 147 |
| 462 | Protozoa | 2 | 22 | 502 | 749 |
| 462 | Vision | 1 | 22 | 929 | 1002 |
| 462 | Safety management | 2 | 22 | 806 | 1023 |
| 467 | Dentistry | 8 | 21 | 396 | 876 |
| 468 | Surface Chemistry | 1 | 20 | 3999 | 4215 |
| 468 | dietary supplements | 1 | 20 | 1440 | 1716 |
| 468 | Respiratory Infections | 5 | 20 | 201 | 570 |
| 468 | Colloids | 1 | 20 | 4000 | 4311 |
| 468 | migration policy | 1 | 20 | 395 | 453 |
| 468 | Molecular structure | 2 | 20 | 2711 | 3064 |
| 468 | allied health | 1 | 20 | 493 | 521 |
| 475 | Respiratory Therapy | 1 | 19 | 68 | 90 |
| 475 | Reproductive toxicology | 1 | 19 | 708 | 893 |
| 475 | gases | 1 | 19 | 68 | 90 |
| 475 | Neurons | 2 | 19 | 586 | 1074 |
| 475 | China | 3 | 19 | 2665 | 3731 |
| 475 | Human biology | 2 | 19 | 778 | 1034 |
| 481 | Bioinformatics | 1 | 18 | 2578 | 2702 |
| 481 | air quality | 2 | 18 | 322 | 671 |
| 483 | Linguistics | 1 | 17 | 1895 | 1627 |
| 483 | Language Disorders | 1 | 17 | 1171 | 1214 |
| 483 | Phonetics | 1 | 17 | 535 | 594 |
| 483 | Molecular evolution | 1 | 17 | 2076 | 2513 |
| 483 | Speech Disorders | 1 | 17 | 1326 | 1377 |
| 483 | Respiratory system | 1 | 17 | 763 | 950 |
| 483 | disabilities | 1 | 17 | 1078 | 1211 |
| 483 | Bacterial infections | 2 | 17 | 852 | 1472 |
| 483 | curriculum planning | 1 | 17 | 310 | 318 |
| 483 | Cell surface receptors | 1 | 17 | 264 | 305 |
| 483 | biomedicine | 1 | 17 | 875 | 1117 |
| 483 | Zoonoses | 1 | 17 | 561 | 737 |
| 495 | Food Science | 1 | 16 | 474 | 516 |
| 495 | Data Mining | 1 | 16 | 2530 | 2744 |
| 495 | Neuropsychiatry | 1 | 16 | 1076 | 1231 |
| 495 | ethnicity | 3 | 16 | 702 | 1031 |
| 495 | women's rights | 2 | 16 | 187 | 362 |
| 495 | Religion and Psychology | 2 | 16 | 718 | 996 |
| 495 | Hegemony | 1 | 16 | 71 | 65 |
| 495 | language | 1 | 16 | 1264 | 1301 |
| 503 | Artificial Intelligence | 2 | 15 | 3710 | 4436 |
| 503 | Drug design | 2 | 15 | 1699 | 2390 |
| 503 | Radiation | 2 | 15 | 2361 | 2883 |
| 503 | Synchrotron Radiation | 2 | 15 | 445 | 640 |
| 503 | peptides | 2 | 15 | 973 | 1427 |
| 503 | proteins | 2 | 15 | 1972 | 2640 |
| 509 | Medical Sociology | 1 | 14 | 99 | 173 |
| 509 | Educational Sociology | 1 | 14 | 711 | 757 |
| 509 | Altitude Sickness | 1 | 14 | 261 | 321 |
| 509 | Environmental Management | 4 | 14 | 2452 | 4504 |
| 509 | Risk assessment | 2 | 14 | 808 | 1333 |
| 509 | International Education | 1 | 14 | 505 | 634 |
| 509 | Edible plants | 1 | 14 | 491 | 736 |
| 509 | Altitude | 1 | 14 | 261 | 321 |
| 509 | Health Risk Assessment | 2 | 14 | 594 | 1056 |
| 509 | Administration | 1 | 14 | 174 | 228 |
| 519 | Andrology | 1 | 13 | 856 | 1017 |
| 519 | Microbial Biotechnology | 1 | 13 | 1681 | 2054 |
| 519 | Immunochemistry | 1 | 13 | 1354 | 1567 |
| 519 | Neuromuscular diseases | 3 | 13 | 518 | 978 |
| 519 | Adult learning | 1 | 13 | 90 | 147 |
| 519 | non-formal education | 1 | 13 | 91 | 148 |
| 519 | drug addiction | 1 | 13 | 1439 | 1771 |
| 519 | alcoholism | 1 | 13 | 1824 | 2146 |
| 527 | Animal Behavior | 1 | 12 | 2324 | 2803 |
| 527 | Travel | 2 | 12 | 914 | 1537 |
| 527 | Ethology | 1 | 12 | 1859 | 2340 |
| 527 | Electroconvulsive therapy | 1 | 12 | 181 | 245 |
| 531 | economic policy | 1 | 11 | 3121 | 3060 |
| 531 | Developmental Disabilities | 1 | 11 | 1369 | 1781 |
| 531 | feeding behavior | 1 | 11 | 1095 | 1493 |
| 531 | Appetite | 1 | 11 | 984 | 1366 |
| 535 | Nuclear Medicine | 3 | 10 | 776 | 1253 |
| 535 | Distance Education | 2 | 10 | 469 | 1041 |
| 535 | Language and Culture | 1 | 10 | 352 | 412 |
| 535 | Gene expression | 1 | 10 | 449 | 626 |
| 535 | moral development | 1 | 10 | 252 | 434 |
| 535 | Moral Education | 1 | 10 | 286 | 403 |
| 535 | Drug delivery systems | 2 | 10 | 1743 | 2553 |
| 535 | Gene expression regulation | 1 | 10 | 1349 | 1680 |
| 535 | Substance Abuse | 2 | 10 | 1461 | 2157 |
| 535 | Genetic regulation | 1 | 10 | 1425 | 1775 |
| 535 | anesthesia | 6 | 10 | 310 | 842 |
| 535 | Youth | 1 | 10 | 1086 | 1428 |
| 535 | Growth | 1 | 10 | 1322 | 1743 |
| 548 | Philosophy | 1 | 9 | 2057 | 1550 |
| 548 | Human-Computer Interaction | 1 | 9 | 2332 | 2831 |
| 548 | Health insurance | 4 | 9 | 319 | 938 |
| 548 | monitoring | 1 | 9 | 467 | 593 |
| 548 | Chromosomes | 1 | 9 | 1249 | 1630 |
| 548 | Multiple sclerosis | 3 | 9 | 533 | 1010 |
| 548 | children | 2 | 9 | 589 | 1026 |
| 555 | Otolaryngology | 2 | 8 | 536 | 893 |
| 555 | Journalism | 1 | 8 | 889 | 977 |
| 555 | Sports Medicine | 1 | 8 | 3035 | 3141 |
| 555 | Electrocardiography | 1 | 8 | 536 | 623 |
| 555 | civil rights | 1 | 8 | 713 | 855 |
| 555 | Sexuality | 1 | 8 | 565 | 746 |
| 555 | nucleic acids | 1 | 8 | 1860 | 2322 |
| 555 | Physical fitness | 1 | 8 | 1506 | 1879 |
| 555 | Electrophysiology | 1 | 8 | 1235 | 1481 |
| 555 | nucleotides | 1 | 8 | 554 | 616 |
| 555 | sexual behavior | 1 | 8 | 1076 | 1436 |
| 555 | Influenza | 2 | 8 | 266 | 623 |
| 567 | Nanotechnology | 2 | 7 | 4133 | 5325 |
| 567 | Environmental Education | 1 | 7 | 666 | 931 |
| 567 | Genetic disorders | 1 | 7 | 570 | 786 |
| 567 | Social interaction | 1 | 7 | 616 | 899 |
| 567 | scientific societies | 1 | 7 | 1141 | 1569 |
| 567 | software | 1 | 7 | 1586 | 2145 |
| 567 | Post-traumatic stress disorder | 1 | 7 | 1146 | 1537 |
| 567 | Decision making | 3 | 7 | 1423 | 2759 |
| 567 | liver | 1 | 7 | 481 | 695 |
| 576 | Genetic Counseling | 1 | 6 | 335 | 511 |
| 576 | Psychosomatic Medicine | 1 | 6 | 1070 | 1511 |
| 576 | Integrative Medicine | 2 | 6 | 345 | 736 |
| 576 | Medical innovations | 1 | 6 | 1261 | 1890 |
| 576 | behavior therapy | 2 | 6 | 902 | 1506 |
| 576 | Longevity | 1 | 6 | 344 | 611 |
| 576 | biological agents | 2 | 6 | 892 | 1241 |
| 583 | Molecular Microbiology | 1 | 5 | 1124 | 1590 |
| 583 | Psychoneuroimmunology | 1 | 5 | 861 | 1283 |
| 583 | Psychopharmacology | 2 | 5 | 1379 | 2280 |
| 583 | Dialysis | 2 | 5 | 118 | 193 |
| 583 | Kidney transplantation | 2 | 5 | 59 | 149 |
| 583 | Ethnic relations | 2 | 5 | 759 | 1213 |
| 583 | Neuroimmunology | 1 | 5 | 956 | 1428 |
| 583 | Accreditation | 1 | 5 | 145 | 241 |
| 583 | Retinal diseases | 1 | 5 | 129 | 115 |
| 583 | Hallucinogens | 1 | 5 | 332 | 578 |
| 583 | Enzyme | 1 | 5 | 894 | 1395 |
| 583 | enzymes | 1 | 5 | 1968 | 2660 |
| 583 | Bacterial diseases | 1 | 5 | 517 | 876 |
| 596 | Radiography | 1 | 4 | 1025 | 1433 |
| 596 | Atmospheric Physics | 1 | 4 | 1978 | 2612 |
| 596 | Neuropharmacology | 1 | 4 | 881 | 1279 |
| 596 | urban health | 1 | 4 | 453 | 818 |
| 596 | Biometrics | 1 | 4 | 1385 | 1771 |
| 596 | Migration | 1 | 4 | 409 | 685 |
| 596 | training | 2 | 4 | 55 | 161 |
| 596 | Host-parasite interactions | 1 | 4 | 1557 | 2255 |
| 596 | chronic disease | 1 | 4 | 494 | 823 |
| 596 | brain mapping | 1 | 4 | 799 | 1175 |
| 606 | Veterinary Epidemiology | 1 | 3 | 94 | 179 |
| 606 | Biochemical Genetics | 1 | 3 | 862 | 1188 |
| 606 | Neurovirology | 1 | 3 | 398 | 670 |
| 606 | Patient education | 1 | 3 | 868 | 1362 |
| 606 | Cognitive Behavioral Therapy | 1 | 3 | 261 | 422 |
| 606 | Cognitive Therapy | 1 | 3 | 987 | 1490 |
| 606 | Program Evaluation | 1 | 3 | 187 | 377 |
| 606 | global environmental change | 1 | 3 | 1242 | 1975 |
| 606 | Parturition | 1 | 3 | 17 | 32 |
| 606 | counseling | 1 | 3 | 1867 | 2474 |
| 606 | government | 1 | 3 | 840 | 964 |
| 606 | evaluation | 1 | 3 | 329 | 588 |
| 606 | Autism | 1 | 3 | 993 | 1502 |
| 606 | gene transfer | 1 | 3 | 451 | 735 |
| 606 | genetic transformation | 1 | 3 | 451 | 735 |
| 621 | International Relations | 1 | 2 | 1526 | 1827 |
| 621 | Educational Leadership | 1 | 2 | 306 | 556 |
| 621 | Geophysics | 1 | 2 | 3751 | 4694 |
| 621 | Regenerative Medicine | 1 | 2 | 304 | 632 |
| 621 | Signal Processing | 1 | 2 | 3021 | 3787 |
| 621 | Developmental Biology | 1 | 2 | 2290 | 3175 |
| 621 | Amyotrophic Lateral Sclerosis | 1 | 2 | 371 | 603 |
| 621 | Hemostasis | 1 | 2 | 927 | 1300 |
| 621 | nursing education | 1 | 2 | 315 | 479 |
| 621 | Frontotemporal lobar degeneration | 1 | 2 | 300 | 510 |
| 621 | Thrombosis | 1 | 2 | 1160 | 1630 |
| 621 | Evidence-based practice | 1 | 2 | 174 | 273 |
| 621 | civil society | 1 | 2 | 158 | 298 |
| 621 | Pediatric Neuropsychology | 1 | 2 | 202 | 403 |
| 621 | Materials | 1 | 2 | 5240 | 6007 |
| 621 | Empathy | 1 | 2 | 68 | 138 |
| 621 | Traditional medicine | 1 | 2 | 380 | 770 |
| 621 | Hemophilia | 2 | 2 | 410 | 765 |
| 621 | child mental health | 1 | 2 | 789 | 1293 |
| 621 | Germany | 1 | 2 | 1147 | 1481 |
| 621 | Cell metabolism | 2 | 2 | 731 | 1544 |
| 621 | Coronary heart disease | 1 | 2 | 395 | 604 |
| 621 | Pancreatic diseases | 2 | 2 | 387 | 742 |
| 644 | Anthropology | 1 | 1 | 2159 | 2768 |
| 644 | Theology | 1 | 1 | 1052 | 1025 |
| 644 | Immunohematology | 1 | 1 | 124 | 235 |
| 644 | Medical Physics | 3 | 1 | 1377 | 2548 |
| 644 | Multicultural Education | 1 | 1 | 730 | 1175 |
| 644 | Lymphoma | 1 | 1 | 513 | 769 |
| 644 | Molecular Imaging | 1 | 1 | 743 | 1080 |
| 644 | Multiple Myeloma | 1 | 1 | 506 | 764 |
| 644 | Social Systems | 1 | 1 | 78 | 153 |
| 644 | Nanostructures | 1 | 1 | 2650 | 3471 |
| 644 | Blood group antigens | 1 | 1 | 116 | 220 |
| 644 | Pakistan | 3 | 1 | 23 | 82 |
| 644 | North Africa | 2 | 1 | 238 | 618 |
| 644 | values | 1 | 1 | 522 | 740 |
| 644 | Endocrine system | 5 | 1 | 471 | 904 |
| 644 | Social structure | 1 | 1 | 48 | 77 |
| 660 | History | 1 | 0 | 1620 | 1668 |
| 660 | Medical Imaging | 1 | 0 | 367 | 530 |
| 660 | Ergonomics | 1 | 0 | 1377 | 2025 |
| 660 | Community Psychology | 1 | 0 | 900 | 1493 |
| 660 | Magnetic Resonance Imaging | 1 | 0 | 609 | 955 |
| 660 | food technology | 1 | 0 | 3279 | 4334 |
| 660 | Schizophrenia | 1 | 0 | 1202 | 1683 |
| 660 | Material Culture | 1 | 0 | 279 | 557 |
| 660 | cultural policy | 1 | 0 | 403 | 735 |
| 660 | Psychoanalysis | 1 | 0 | 569 | 831 |
| 660 | Mass Media | 2 | 0 | 1030 | 1977 |
| 660 | Organ transplantation | 1 | 0 | 484 | 766 |
| 660 | Pharmacy management | 1 | 0 | 482 | 825 |
| 660 | Communications | 1 | 0 | 71 | 159 |
| 660 | psychoanalytic therapy | 1 | 0 | 173 | 284 |
| 660 | Social behavior | 1 | 0 | 1714 | 2597 |
| 660 | media | 1 | 0 | 71 | 159 |
| 660 | free radicals | 1 | 0 | 1665 | 2319 |
| 660 | RNA | 1 | 0 | 754 | 1157 |
| 660 | food industry | 1 | 0 | 1412 | 2249 |
| 660 | Islamic civilization | 2 | 0 | 142 | 239 |