| 1 | Pediatrics | 277 | 16.1K | 62 | 65 |
| 2 | Science | 151 | 14.8K | 1143 | 1619 |
| 3 | Medicine | 215 | 13.3K | 409 | 575 |
| 4 | Biology | 82 | 11.1K | 2891 | 2332 |
| 5 | Physics | 19 | 9.8K | 10404 | 2321 |
| 6 | Natural history | 7 | 8.6K | 5358 | 1665 |
| 7 | Biochemistry | 142 | 7.2K | 1884 | 1660 |
| 8 | Medical genetics | 45 | 6.8K | 825 | 316 |
| 9 | Child | 139 | 6.2K | 35 | 15 |
| 10 | Molecular Biology | 81 | 5.9K | 2310 | 2123 |
| 11 | Human genetics | 26 | 5.8K | 1059 | 1183 |
| 12 | Research | 152 | 5.6K | 435 | 734 |
| 13 | Child Development | 57 | 5.3K | 144 | 55 |
| 14 | Developmental Disabilities | 42 | 4.9K | 57 | 15 |
| 15 | Genetics | 20 | 4.8K | 2578 | 910 |
| 16 | Cardiovascular system | 42 | 4.3K | 93 | 89 |
| 17 | Epidemiology | 65 | 4.3K | 440 | 290 |
| 18 | Cytology | 51 | 3.6K | 1477 | 2293 |
| 19 | Microbiology | 43 | 3.1K | 2789 | 2281 |
| 20 | Cell Biology | 41 | 3.0K | 1663 | 2643 |
| 21 | Chronic diseases | 32 | 2.9K | 67 | 88 |
| 22 | Immunology | 40 | 2.8K | 1042 | 1131 |
| 23 | Neurology | 45 | 2.7K | 3195 | 3302 |
| 24 | Nutrition | 92 | 2.6K | 274 | 532 |
| 25 | Physiology | 50 | 2.6K | 979 | 926 |
| 26 | drug development | 8 | 2.6K | 533 | 128 |
| 27 | Medical innovations | 7 | 2.6K | 654 | 140 |
| 28 | Hypertension | 23 | 2.5K | 306 | 169 |
| 29 | Adolescent Medicine | 34 | 2.4K | 51 | 44 |
| 30 | Metabolism | 47 | 2.4K | 435 | 621 |
| 31 | Public Health | 71 | 2.3K | 608 | 928 |
| 32 | Allergy | 48 | 2.2K | 115 | 479 |
| 33 | Obesity | 59 | 2.1K | 142 | 244 |
| 34 | Pharmacology | 62 | 2.0K | 1191 | 1535 |
| 35 | Child psychology | 22 | 2.0K | 402 | 237 |
| 36 | Metabolic diseases | 43 | 2.0K | 388 | 797 |
| 37 | Endocrinology | 38 | 1.9K | 949 | 1270 |
| 38 | Lipids | 41 | 1.9K | 42 | 100 |
| 39 | Chemistry | 25 | 1.8K | 9625 | 7103 |
| 40 | Diabetes | 22 | 1.8K | 717 | 567 |
| 41 | Critical Care | 30 | 1.8K | 145 | 269 |
| 41 | Critical Care Medicine | 30 | 1.8K | 156 | 269 |
| 43 | Diabetes mellitus | 21 | 1.8K | 644 | 542 |
| 44 | Obstetrics | 55 | 1.7K | 377 | 426 |
| 45 | Psychiatry | 31 | 1.5K | 1673 | 1969 |
| 46 | Immunity | 7 | 1.5K | 2439 | 1569 |
| 47 | Randomized Controlled Trials | 23 | 1.4K | 91 | 28 |
| 48 | Health Services Research | 45 | 1.4K | 131 | 176 |
| 49 | Lung Transplantation | 30 | 1.4K | 32 | 32 |
| 49 | Heart transplantation | 30 | 1.4K | 32 | 32 |
| 51 | Autism | 26 | 1.3K | 43 | 61 |
| 52 | Biophysics | 41 | 1.3K | 2268 | 2741 |
| 53 | Parenteral nutrition | 48 | 1.3K | 41 | 146 |
| 54 | Health | 53 | 1.2K | 123 | 257 |
| 55 | Mental Disorders | 29 | 1.2K | 943 | 1429 |
| 56 | Neurophysiology | 18 | 1.2K | 2264 | 2211 |
| 57 | Medical Microbiology | 16 | 1.2K | 904 | 771 |
| 58 | Asthma | 31 | 1.1K | 17 | 9 |
| 59 | Research Design | 26 | 1.1K | 61 | 122 |
| 60 | Clinical Immunology | 25 | 1.1K | 153 | 106 |
| 61 | Vaccines | 34 | 1.1K | 172 | 211 |
| 62 | Allergies | 25 | 1.0K | 7 | 12 |
| 63 | Virology | 21 | 1.0K | 1686 | 4166 |
| 64 | Environment | 17 | 1.0K | 2931 | 3605 |
| 65 | Neuropsychology | 21 | 995 | 773 | 665 |
| 66 | Brain | 13 | 883 | 2698 | 1806 |
| 67 | Clinical Chemistry | 6 | 859 | 3753 | 1064 |
| 68 | Cytogenetics | 5 | 842 | 2153 | 1190 |
| 69 | United Kingdom | 14 | 801 | 482 | 510 |
| 70 | Microorganisms | 5 | 786 | 699 | 378 |
| 71 | Psychophysiology | 11 | 784 | 2425 | 2046 |
| 72 | Genomics | 12 | 768 | 2224 | 1445 |
| 73 | mycoses | 3 | 754 | 846 | 464 |
| 73 | Bacterial infections | 3 | 754 | 861 | 477 |
| 73 | Host-parasite interactions | 3 | 754 | 2087 | 950 |
| 76 | Environmental Microbiology | 4 | 751 | 1356 | 505 |
| 76 | soil microbiology | 4 | 751 | 1482 | 596 |
| 78 | cell physiology | 8 | 746 | 1414 | 1041 |
| 79 | Immunotherapy | 14 | 670 | 731 | 1385 |
| 79 | Transplantation | 34 | 670 | 188 | 685 |
| 81 | Adolescent | 37 | 660 | 214 | 492 |
| 82 | Respiration | 12 | 659 | 593 | 467 |
| 83 | Signal Transduction | 3 | 656 | 2696 | 613 |
| 84 | Lipid metabolism | 24 | 654 | 7 | 53 |
| 85 | Lipid | 23 | 651 | 7 | 54 |
| 86 | Environmental Health | 19 | 646 | 2499 | 3596 |
| 87 | Diet | 14 | 631 | 913 | 1284 |
| 88 | medical education | 36 | 564 | 181 | 391 |
| 89 | Immune system | 3 | 547 | 1925 | 1703 |
| 90 | Hematology | 13 | 522 | 2769 | 3351 |
| 91 | Mental illness | 16 | 509 | 914 | 1960 |
| 92 | Diagnostic microbiology | 11 | 494 | 446 | 914 |
| 93 | Psychology | 9 | 446 | 3954 | 3032 |
| 93 | Psychopharmacology | 4 | 446 | 2687 | 1753 |
| 95 | Cancer | 11 | 443 | 4974 | 6563 |
| 96 | Toxicology | 11 | 437 | 4844 | 4557 |
| 97 | Artificial Organs | 12 | 417 | 155 | 78 |
| 98 | Organ transplantation | 29 | 408 | 25 | 47 |
| 99 | Cardiovascular diseases | 12 | 398 | 334 | 404 |
| 100 | Education | 11 | 383 | 1103 | 973 |
| 101 | Pregnancy | 11 | 381 | 235 | 220 |
| 102 | Primary health care | 23 | 377 | 226 | 492 |
| 103 | Heart Failure | 5 | 372 | 111 | 95 |
| 104 | Reproduction | 14 | 363 | 1144 | 1770 |
| 105 | weight loss | 14 | 362 | 17 | 12 |
| 106 | Enteral nutrition | 8 | 361 | 322 | 424 |
| 107 | Clinical Biochemistry | 12 | 355 | 355 | 559 |
| 108 | Behavior | 8 | 339 | 2905 | 3355 |
| 109 | proteins | 5 | 335 | 2843 | 1707 |
| 110 | United States | 13 | 322 | 3089 | 3242 |
| 111 | Adolescent Psychology | 6 | 320 | 454 | 356 |
| 111 | Stem cells | 8 | 320 | 1251 | 1862 |
| 113 | Emergency Medicine | 21 | 301 | 123 | 388 |
| 114 | Medical Imaging | 7 | 297 | 105 | 105 |
| 114 | Magnetic Resonance Imaging | 7 | 297 | 145 | 163 |
| 116 | Physical Therapy | 5 | 282 | 1033 | 931 |
| 117 | Membranes | 7 | 273 | 1736 | 2096 |
| 118 | government | 18 | 272 | 51 | 109 |
| 119 | Sleep Disorders | 18 | 264 | 464 | 1297 |
| 120 | Environmental Toxicology | 4 | 263 | 2988 | 2387 |
| 121 | Information Technology | 4 | 261 | 1699 | 1012 |
| 121 | Educational Technology | 4 | 261 | 800 | 409 |
| 121 | Alternative Medicine | 19 | 261 | 96 | 490 |
| 121 | complementary therapies | 19 | 261 | 102 | 475 |
| 125 | human behavior | 4 | 256 | 3302 | 3407 |
| 126 | Pharmacogenetics | 4 | 254 | 1095 | 844 |
| 126 | Sports Medicine | 5 | 254 | 2156 | 1636 |
| 126 | Drug design | 4 | 254 | 1616 | 1124 |
| 129 | Mental Health Services | 7 | 253 | 761 | 639 |
| 130 | gastrointestinal tract | 5 | 252 | 102 | 217 |
| 131 | Nervous system | 3 | 250 | 6371 | 4770 |
| 132 | pain | 17 | 249 | 375 | 1493 |
| 133 | Pathology | 4 | 248 | 5341 | 4737 |
| 134 | drug therapy | 12 | 246 | 1344 | 2881 |
| 135 | Mental Health | 6 | 244 | 1268 | 791 |
| 136 | Pediatric Neurology | 2 | 240 | 2855 | 2659 |
| 137 | Analytical Chemistry | 1 | 239 | 19662 | 6282 |
| 138 | Inflammation | 4 | 235 | 1025 | 1122 |
| 139 | environmental pollution | 5 | 232 | 6332 | 6048 |
| 139 | Pollution | 5 | 232 | 9229 | 9528 |
| 141 | Homeostasis | 2 | 231 | 946 | 2190 |
| 141 | Cell metabolism | 2 | 231 | 1308 | 2226 |
| 143 | Health Policy | 10 | 227 | 1198 | 2186 |
| 144 | Rheumatology | 7 | 223 | 593 | 819 |
| 144 | Hormones | 4 | 223 | 1775 | 1548 |
| 146 | Sleep | 12 | 220 | 732 | 1542 |
| 147 | Social work | 9 | 217 | 288 | 291 |
| 148 | Digestive system diseases | 10 | 213 | 173 | 419 |
| 149 | visualization | 12 | 204 | 441 | 417 |
| 150 | Ecology | 5 | 203 | 12355 | 14963 |
| 151 | arthritis | 5 | 202 | 837 | 1092 |
| 152 | Liver diseases | 2 | 198 | 3407 | 2834 |
| 153 | Dermatology | 9 | 195 | 1232 | 1681 |
| 153 | Thrombosis | 8 | 195 | 496 | 1170 |
| 155 | cytokines | 4 | 192 | 1373 | 1154 |
| 156 | Chemotherapy | 7 | 191 | 651 | 1223 |
| 157 | Environmental monitoring | 4 | 190 | 5817 | 5696 |
| 158 | Endocrine glands | 3 | 186 | 158 | 460 |
| 159 | Environmental Policy | 5 | 185 | 3189 | 4679 |
| 160 | Health Education | 11 | 184 | 746 | 1420 |
| 161 | Growth factors | 3 | 181 | 131 | 355 |
| 161 | Cytokine | 3 | 181 | 282 | 390 |
| 163 | Hematopoietic stem cell transplantation | 2 | 178 | 653 | 410 |
| 164 | vascular diseases | 5 | 177 | 410 | 982 |
| 164 | enzymes | 1 | 177 | 5629 | 1890 |
| 166 | Qualitative Research | 4 | 172 | 153 | 95 |
| 167 | Food | 4 | 170 | 4358 | 4122 |
| 168 | Environmental Engineering | 3 | 169 | 6961 | 6038 |
| 168 | Environmental Law | 3 | 169 | 1311 | 1640 |
| 168 | Animal Behavior | 2 | 169 | 4245 | 3369 |
| 168 | environmental protection | 3 | 169 | 6101 | 4601 |
| 168 | Ethology | 2 | 169 | 3077 | 2783 |
| 168 | free radicals | 4 | 169 | 1866 | 2948 |
| 174 | Neuropsychiatry | 1 | 168 | 3054 | 1058 |
| 175 | Neurochemistry | 6 | 159 | 4548 | 6669 |
| 176 | Patient education | 7 | 152 | 197 | 550 |
| 176 | infection | 6 | 152 | 1147 | 2101 |
| 176 | counseling | 7 | 152 | 679 | 1024 |
| 176 | disease outbreaks | 5 | 152 | 355 | 674 |
| 176 | Epidemics | 5 | 152 | 348 | 671 |
| 181 | Neuroimaging | 2 | 148 | 539 | 170 |
| 181 | mental processes | 2 | 148 | 622 | 187 |
| 183 | Chromosome mapping | 3 | 145 | 3578 | 3946 |
| 183 | chronic disease | 2 | 145 | 399 | 214 |
| 183 | gene mapping | 3 | 145 | 4276 | 4992 |
| 186 | disabilities | 5 | 144 | 329 | 379 |
| 187 | Respiratory Infections | 4 | 143 | 155 | 140 |
| 187 | Influenza | 4 | 143 | 90 | 102 |
| 189 | rare diseases | 2 | 142 | 1020 | 604 |
| 190 | Thorax | 10 | 136 | 164 | 581 |
| 191 | Autoantibodies | 2 | 134 | 927 | 770 |
| 191 | Autoimmunity | 2 | 134 | 1374 | 1276 |
| 191 | Autoimmune diseases | 2 | 134 | 1029 | 845 |
| 194 | Global Health | 11 | 133 | 262 | 629 |
| 195 | Pediatric Nursing | 5 | 132 | 160 | 202 |
| 196 | rehabilitation | 8 | 129 | 1347 | 3376 |
| 197 | scientific societies | 7 | 126 | 410 | 848 |
| 198 | Neonatology | 8 | 124 | 135 | 486 |
| 198 | Obstetric Nursing | 5 | 124 | 128 | 177 |
| 200 | Genetic disorders | 6 | 123 | 328 | 602 |
| 200 | Antioxidants | 3 | 123 | 785 | 1789 |
| 200 | Genetic regulation | 4 | 123 | 1655 | 3865 |
| 203 | Medical Ethics | 4 | 121 | 704 | 538 |
| 203 | alcoholism | 5 | 121 | 1642 | 2289 |
| 205 | Social Psychology | 1 | 117 | 4489 | 2011 |
| 205 | psychopathology | 1 | 117 | 606 | 349 |
| 205 | Trademarks | 1 | 117 | 88 | 11 |
| 208 | Nursing | 6 | 114 | 1087 | 1117 |
| 209 | Visual Perception | 4 | 113 | 3277 | 4398 |
| 209 | Memory | 4 | 113 | 3694 | 4979 |
| 209 | Attention | 4 | 113 | 3366 | 4485 |
| 209 | Perception | 4 | 113 | 3648 | 4766 |
| 213 | Malaria | 4 | 112 | 602 | 783 |
| 214 | patient satisfaction | 5 | 110 | 8 | 17 |
| 215 | Water | 3 | 109 | 3925 | 5401 |
| 216 | Urology | 3 | 107 | 3629 | 4095 |
| 216 | Clinical Trials | 5 | 107 | 358 | 457 |
| 216 | Library Science | 1 | 107 | 478 | 54 |
| 216 | ethanol | 2 | 107 | 759 | 510 |
| 216 | Information Science | 1 | 107 | 5516 | 2615 |
| 221 | brain mapping | 3 | 106 | 1268 | 1817 |
| 222 | Sociology | 1 | 105 | 7383 | 3833 |
| 222 | Medical Anthropology | 1 | 105 | 3888 | 2628 |
| 222 | Developmental Immunology | 2 | 105 | 659 | 725 |
| 225 | gene therapy | 2 | 104 | 2811 | 3317 |
| 225 | Genetic therapy | 2 | 104 | 3302 | 3583 |
| 227 | Oncology | 2 | 101 | 8528 | 9478 |
| 228 | Nephrology | 17 | 100 | 141 | 1152 |
| 228 | Chronobiology | 1 | 100 | 1094 | 437 |
| 228 | Dialysis | 17 | 100 | 27 | 78 |
| 228 | health services accessibility | 7 | 100 | 444 | 954 |
| 228 | Kidney transplantation | 17 | 100 | 25 | 73 |
| 228 | Circadian rhythms | 1 | 100 | 820 | 407 |
| 228 | biological clocks | 1 | 100 | 1094 | 437 |
| 228 | circadian rhythm | 1 | 100 | 1094 | 437 |
| 228 | biological rhythms | 1 | 100 | 1042 | 431 |
| 228 | Kidney diseases | 17 | 100 | 217 | 1468 |
| 238 | Geographic information systems | 3 | 98 | 849 | 620 |
| 239 | Surgery | 3 | 96 | 3366 | 5575 |
| 239 | Communication in medicine | 5 | 96 | 181 | 379 |
| 239 | Communication | 5 | 96 | 925 | 2010 |
| 242 | Dietetics | 1 | 95 | 1813 | 742 |
| 243 | Intellectual disability | 2 | 94 | 1101 | 750 |
| 244 | Genetic engineering | 5 | 93 | 2555 | 6651 |
| 244 | Water pollution | 3 | 93 | 3985 | 5321 |
| 246 | Pediatric Dermatology | 6 | 92 | 290 | 373 |
| 246 | Immunopathology | 3 | 92 | 2555 | 3379 |
| 246 | Parasitology | 6 | 92 | 1688 | 2901 |
| 246 | Pathogens | 6 | 92 | 5 | 52 |
| 250 | Humanities | 2 | 90 | 981 | 409 |
| 250 | Bioethics | 2 | 90 | 917 | 501 |
| 252 | Oxidation-reduction | 2 | 88 | 1714 | 3096 |
| 253 | Evidence-Based Medicine | 6 | 87 | 117 | 647 |
| 254 | Biomedical Engineering | 7 | 85 | 7931 | 17789 |
| 255 | Developmental Biology | 2 | 84 | 6989 | 9394 |
| 256 | pain management | 7 | 82 | 199 | 784 |
| 256 | Coronary heart disease | 1 | 82 | 78 | 11 |
| 258 | Decision making | 3 | 81 | 1156 | 1591 |
| 259 | Otolaryngology | 9 | 80 | 381 | 1013 |
| 259 | Public Policy | 2 | 80 | 2811 | 2514 |
| 259 | histological techniques | 1 | 80 | 2821 | 2412 |
| 262 | Recombinant DNA | 4 | 78 | 1779 | 3222 |
| 262 | Europe | 2 | 78 | 7565 | 5703 |
| 264 | Histology | 5 | 77 | 2699 | 6794 |
| 265 | Gene expression regulation | 2 | 75 | 2422 | 3466 |
| 265 | protein | 2 | 75 | 2834 | 2728 |
| 267 | Anti-inflammatory agents | 1 | 74 | 616 | 291 |
| 267 | Cannabis | 3 | 74 | 51 | 76 |
| 267 | cannabinoids | 3 | 74 | 50 | 74 |
| 270 | Music Therapy | 2 | 73 | 136 | 87 |
| 270 | Art Therapy | 2 | 73 | 111 | 78 |
| 270 | risk factors | 1 | 73 | 1202 | 785 |
| 270 | Cell differentiation | 3 | 73 | 4816 | 10349 |
| 274 | health services | 8 | 69 | 337 | 1379 |
| 275 | Statistics | 7 | 68 | 2457 | 3644 |
| 275 | Respiratory system | 3 | 68 | 499 | 1099 |
| 275 | nucleic acids | 2 | 68 | 5507 | 7644 |
| 278 | Occupational Therapy | 9 | 66 | 273 | 759 |
| 278 | Biometrics | 6 | 66 | 1103 | 2084 |
| 280 | Oncogenes | 2 | 65 | 4273 | 8488 |
| 281 | Pharmaceutical Chemistry | 5 | 63 | 6712 | 13622 |
| 281 | Telemedicine | 2 | 63 | 330 | 539 |
| 281 | viruses | 1 | 63 | 5339 | 5673 |
| 284 | Law | 1 | 62 | 2167 | 716 |
| 284 | Teratology | 3 | 62 | 355 | 755 |
| 284 | abnormalities | 3 | 62 | 158 | 398 |
| 284 | Jurisprudence | 1 | 62 | 2329 | 1102 |
| 288 | Hemostasis | 4 | 60 | 552 | 1305 |
| 289 | Language Acquisition | 1 | 59 | 157 | 49 |
| 289 | behavioral medicine | 2 | 59 | 2646 | 4102 |
| 289 | Bilingualism | 1 | 59 | 80 | 46 |
| 292 | Neurobiology | 3 | 58 | 4898 | 9592 |
| 292 | Pediatric Hematology | 7 | 58 | 176 | 409 |
| 294 | Health Services Administration | 4 | 57 | 646 | 1845 |
| 294 | Leadership | 4 | 57 | 55 | 263 |
| 296 | Clinical Psychology | 1 | 55 | 2346 | 2137 |
| 296 | psychotherapy | 1 | 55 | 2957 | 2315 |
| 296 | Drug discovery | 2 | 55 | 277 | 568 |
| 299 | Social welfare | 3 | 54 | 300 | 496 |
| 300 | Proteomics | 2 | 53 | 2385 | 4370 |
| 301 | community participation | 5 | 51 | 25 | 101 |
| 301 | Faculty | 5 | 51 | 25 | 101 |
| 303 | Medical Laboratory Science | 1 | 50 | 8440 | 8212 |
| 303 | Antibodies | 1 | 50 | 1842 | 1559 |
| 303 | Antigens | 1 | 50 | 2682 | 2218 |
| 306 | Experimental Psychology | 1 | 49 | 826 | 669 |
| 307 | Oxidative stress | 1 | 48 | 2719 | 3849 |
| 307 | Infections | 5 | 48 | 680 | 3637 |
| 307 | Cell survival | 1 | 48 | 422 | 483 |
| 307 | Tropical Medicine | 1 | 48 | 4541 | 3239 |
| 307 | cloning | 2 | 48 | 1336 | 3971 |
| 307 | molecular chaperones | 1 | 48 | 426 | 483 |
| 313 | breastfeeding | 4 | 46 | 345 | 1012 |
| 314 | Engineering | 3 | 45 | 8672 | 12228 |
| 314 | Educational Psychology | 2 | 45 | 1744 | 2193 |
| 314 | Functional Genomics | 1 | 45 | 838 | 1247 |
| 314 | Molecular cloning | 3 | 45 | 2151 | 4539 |
| 314 | Genetic recombination | 3 | 45 | 2074 | 4440 |
| 314 | genome | 1 | 45 | 7367 | 8942 |
| 320 | School Psychology | 1 | 44 | 720 | 610 |
| 320 | school psychologists | 1 | 44 | 321 | 352 |
| 322 | Community networks | 3 | 43 | 2 | 11 |
| 322 | autism spectrum disorder | 3 | 43 | 24 | 84 |
| 324 | Parasitic Diseases | 3 | 42 | 2181 | 4785 |
| 324 | health planning | 4 | 42 | 2095 | 4231 |
| 326 | Bioenergetics | 1 | 41 | 2209 | 2715 |
| 326 | Pediatric Rheumatology | 4 | 41 | 168 | 446 |
| 326 | preventive medicine | 2 | 41 | 2188 | 3798 |
| 326 | Energy metabolism | 1 | 41 | 1521 | 1977 |
| 326 | Travel | 2 | 41 | 684 | 916 |
| 326 | Cardiopulmonary Resuscitation | 13 | 41 | 6 | 26 |
| 326 | cardiac arrest | 13 | 41 | 6 | 26 |
| 326 | cell membrane | 1 | 41 | 1483 | 1849 |
| 334 | Psychoneuroimmunology | 1 | 39 | 2253 | 3368 |
| 334 | physical therapy techniques | 7 | 39 | 35 | 141 |
| 334 | Neuroimmunology | 1 | 39 | 2705 | 3768 |
| 337 | Cell death | 3 | 38 | 3040 | 9674 |
| 338 | Substance Abuse | 3 | 37 | 2263 | 4240 |
| 339 | Embryology | 2 | 36 | 4975 | 9312 |
| 339 | Nutrition physiology | 3 | 36 | 634 | 2079 |
| 339 | drugs | 2 | 36 | 5251 | 8589 |
| 342 | Depression | 1 | 35 | 913 | 1471 |
| 342 | Anxiety Disorders | 1 | 35 | 1244 | 1908 |
| 342 | Anxiety | 1 | 35 | 1232 | 1877 |
| 342 | cardiac catheterization | 2 | 35 | 407 | 652 |
| 342 | vitamin C | 1 | 35 | 914 | 1419 |
| 342 | vitamin E | 1 | 35 | 914 | 1419 |
| 348 | blood transfusion | 3 | 34 | 946 | 2084 |
| 349 | epidemiologic methods | 2 | 33 | 167 | 266 |
| 349 | DNS | 1 | 33 | 1283 | 1442 |
| 349 | Endocrine system | 1 | 33 | 1412 | 806 |
| 349 | DNA | 1 | 33 | 1519 | 1494 |
| 349 | sex crimes | 1 | 33 | 414 | 439 |
| 349 | Genes | 1 | 33 | 4068 | 4124 |
| 355 | Aging | 1 | 32 | 11841 | 12968 |
| 355 | drug evaluation | 1 | 32 | 4001 | 4478 |
| 357 | Ethics | 2 | 31 | 1241 | 1828 |
| 357 | Pediatric Endocrinology | 3 | 31 | 272 | 448 |
| 357 | health behavior | 4 | 31 | 853 | 2477 |
| 357 | Child welfare | 4 | 31 | 833 | 2377 |
| 357 | Biocompatible Materials | 1 | 31 | 21986 | 26662 |
| 357 | Therapeutics | 5 | 31 | 2156 | 11166 |
| 363 | Palliative Care | 1 | 29 | 2388 | 2309 |
| 363 | Culture techniques | 1 | 29 | 846 | 805 |
| 365 | Geriatrics | 1 | 28 | 11856 | 12635 |
| 366 | Risk assessment | 2 | 27 | 497 | 1015 |
| 366 | schools | 2 | 27 | 51 | 30 |
| 366 | disease vectors | 1 | 27 | 2035 | 2599 |
| 366 | Zoonoses | 1 | 27 | 455 | 635 |
| 370 | Hemophilia | 1 | 26 | 885 | 871 |
| 370 | China | 1 | 26 | 12182 | 11429 |
| 372 | Hydrology | 1 | 25 | 6680 | 7596 |
| 372 | Forensic Psychiatry | 2 | 25 | 856 | 1293 |
| 374 | Pharmacognosy | 1 | 24 | 5930 | 8116 |
| 374 | Medicinal plants | 1 | 24 | 4346 | 6097 |
| 374 | Developmental Neurobiology | 8 | 24 | 80 | 2214 |
| 377 | Language Disorders | 1 | 23 | 2031 | 2025 |
| 377 | Emerging infectious diseases | 1 | 23 | 648 | 1140 |
| 377 | Metabolic disorders in children | 2 | 23 | 352 | 468 |
| 377 | Women's health | 4 | 23 | 1398 | 5121 |
| 381 | Infection control | 1 | 22 | 611 | 1063 |
| 381 | Maternal health services | 2 | 22 | 656 | 1563 |
| 381 | drug resistance | 1 | 22 | 1563 | 2483 |
| 381 | Eating Disorders | 1 | 22 | 2435 | 3103 |
| 381 | Feeding and Eating Disorders | 1 | 22 | 2338 | 2984 |
| 386 | Genetic Counseling | 2 | 21 | 469 | 983 |
| 386 | Agricultural Chemistry | 1 | 21 | 7909 | 10587 |
| 386 | epilepsy | 3 | 21 | 1412 | 4105 |
| 386 | feeding behavior | 1 | 21 | 1788 | 2718 |
| 386 | environmental exposure | 1 | 21 | 5899 | 8763 |
| 386 | Appetite | 1 | 21 | 1505 | 2363 |
| 392 | Neurovirology | 1 | 20 | 764 | 1226 |
| 392 | Healing | 4 | 20 | 21 | 227 |
| 392 | Holistic Health | 4 | 20 | 158 | 1146 |
| 392 | Growth | 1 | 20 | 4606 | 7568 |
| 396 | Quality of life | 2 | 19 | 2709 | 7099 |
| 396 | child behavior | 1 | 19 | 696 | 1068 |
| 398 | Pharmacy | 2 | 18 | 5817 | 12522 |
| 398 | Epigenetics | 1 | 18 | 392 | 655 |
| 398 | Molecular Microbiology | 1 | 18 | 2827 | 5248 |
| 398 | Nutritional support | 1 | 18 | 290 | 699 |
| 398 | Epigenomics | 1 | 18 | 388 | 625 |
| 398 | Virulence | 1 | 18 | 4112 | 7660 |
| 398 | Bacterial diseases | 1 | 18 | 497 | 1093 |
| 405 | Developmental Psychology | 4 | 17 | 847 | 3098 |
| 405 | Microbial Ecology | 1 | 17 | 9354 | 15401 |
| 405 | Systems Biology | 1 | 17 | 8039 | 12303 |
| 405 | Evolutionary Genetics | 1 | 17 | 1180 | 2013 |
| 405 | Molecular Epidemiology | 1 | 17 | 1180 | 2013 |
| 405 | Food Microbiology | 2 | 17 | 2136 | 6491 |
| 405 | Metabolic syndrome | 1 | 17 | 530 | 1030 |
| 405 | locomotion | 1 | 17 | 1334 | 2085 |
| 405 | posture | 1 | 17 | 1334 | 2085 |
| 405 | Electrophysiology | 3 | 17 | 619 | 2731 |
| 405 | human development | 4 | 17 | 554 | 2631 |
| 405 | Youth | 1 | 17 | 1269 | 2001 |
| 405 | gait | 1 | 17 | 1334 | 2085 |
| 405 | walking | 1 | 17 | 1334 | 2085 |
| 419 | Computer Science | 2 | 16 | 3158 | 5887 |
| 419 | Anatomy | 1 | 16 | 8748 | 13300 |
| 419 | Emergency Medical Services | 5 | 16 | 187 | 2002 |
| 419 | Pediatric Neuropsychology | 2 | 16 | 90 | 208 |
| 423 | Precision medicine | 3 | 15 | 146 | 774 |
| 423 | Enzyme inhibitors | 1 | 15 | 1069 | 1858 |
| 423 | Post-traumatic stress disorder | 1 | 15 | 1863 | 2781 |
| 426 | Cardiac electrophysiology | 1 | 14 | 195 | 545 |
| 426 | Feasibility studies | 4 | 14 | 137 | 742 |
| 426 | arrhythmia | 1 | 14 | 195 | 545 |
| 426 | Neurodevelopmental disorders | 1 | 14 | 93 | 100 |
| 426 | drug addiction | 3 | 14 | 1667 | 5115 |
| 426 | Muscles | 4 | 14 | 815 | 5300 |
| 432 | Human-Computer Interaction | 1 | 13 | 3145 | 4863 |
| 432 | Physical organic chemistry | 1 | 13 | 3533 | 5139 |
| 432 | Online social networks | 1 | 13 | 449 | 830 |
| 432 | Bioorganic chemistry | 1 | 13 | 9962 | 14326 |
| 432 | mental health promotion | 1 | 13 | 331 | 611 |
| 432 | Neuromuscular diseases | 3 | 13 | 813 | 3470 |
| 432 | internet | 1 | 13 | 3488 | 4972 |
| 439 | Health insurance | 1 | 12 | 974 | 1775 |
| 439 | Health promotion | 3 | 12 | 1473 | 5078 |
| 441 | Pharmaceutical Technology | 1 | 11 | 4699 | 8122 |
| 441 | Immunopharmacology | 1 | 11 | 4651 | 7815 |
| 441 | Family Therapy | 1 | 11 | 1405 | 1966 |
| 441 | Teaching | 2 | 11 | 2222 | 4992 |
| 441 | child mental health | 1 | 11 | 956 | 1481 |
| 446 | Nanotechnology | 1 | 10 | 28147 | 41383 |
| 446 | Drug delivery systems | 1 | 10 | 5729 | 10194 |
| 446 | Drug delivery devices | 1 | 10 | 513 | 1587 |
| 449 | Community Psychiatry | 1 | 9 | 2540 | 4443 |
| 449 | Analytical Biochemistry | 1 | 9 | 6353 | 10724 |
| 449 | food technology | 1 | 9 | 8384 | 13861 |
| 449 | Contraception | 1 | 9 | 1537 | 2961 |
| 449 | Reproductive health | 1 | 9 | 2023 | 3965 |
| 449 | Water quality management | 1 | 9 | 4264 | 7232 |
| 449 | Psychiatric Epidemiology | 1 | 9 | 1364 | 2837 |
| 449 | Cerebral cortex | 1 | 9 | 3384 | 6394 |
| 449 | Birth control | 1 | 9 | 1088 | 2329 |
| 458 | Neurogenetics | 1 | 8 | 881 | 2010 |
| 458 | Forensic Psychology | 1 | 8 | 786 | 1324 |
| 458 | Socioeconomic Factors | 3 | 8 | 514 | 3566 |
| 458 | Foodborne diseases | 1 | 8 | 513 | 1105 |
| 458 | ecosystem | 1 | 8 | 3060 | 6409 |
| 458 | Health Risk Assessment | 1 | 8 | 787 | 1724 |
| 458 | Biodiversity | 1 | 8 | 6313 | 11469 |
| 465 | Clinical Pharmacology | 1 | 7 | 5649 | 10939 |
| 465 | occupational diseases | 1 | 7 | 2133 | 5052 |
| 465 | Cognitive neuroscience | 3 | 7 | 1322 | 5402 |
| 465 | drug abuse | 1 | 7 | 1561 | 3016 |
| 465 | pharmaceutical industry | 3 | 7 | 499 | 2505 |
| 465 | educational innovations | 1 | 7 | 670 | 1353 |
| 465 | harm reduction | 1 | 7 | 407 | 830 |
| 465 | Cognition | 3 | 7 | 2481 | 8961 |
| 473 | Medical Oncology | 1 | 6 | 9999 | 17935 |
| 473 | Molecular Genetics | 1 | 6 | 6641 | 12886 |
| 473 | Carcinogenesis | 1 | 6 | 3762 | 8411 |
| 473 | Proteome | 2 | 6 | 2805 | 9919 |
| 473 | carcinogens | 1 | 6 | 4113 | 9242 |
| 473 | mutagens | 1 | 6 | 2872 | 6756 |
| 473 | Australia | 1 | 6 | 5699 | 9551 |
| 473 | hygiene | 1 | 6 | 1107 | 2478 |
| 473 | Consciousness | 1 | 6 | 795 | 1565 |
| 482 | Data Mining | 1 | 5 | 4438 | 10015 |
| 482 | Databases | 1 | 5 | 259 | 618 |
| 482 | mutation | 1 | 5 | 1556 | 3789 |
| 482 | Behavioral research | 1 | 5 | 1072 | 2631 |
| 482 | healthcare disparities | 1 | 5 | 1328 | 3031 |
| 482 | preimplantation genetic diagnosis | 1 | 5 | 1155 | 2597 |
| 482 | Extracellular matrix | 1 | 5 | 680 | 2042 |
| 482 | embryo transfer | 1 | 5 | 1200 | 2672 |
| 482 | big data | 1 | 5 | 1002 | 2262 |
| 482 | Chromosomes | 1 | 5 | 3042 | 6347 |
| 482 | collagen | 1 | 5 | 744 | 2156 |
| 493 | Emergency Nursing | 1 | 4 | 239 | 553 |
| 493 | Transition to adult care | 1 | 4 | 7 | 24 |
| 493 | Immunochemistry | 1 | 4 | 3334 | 7250 |
| 496 | Mathematics | 1 | 3 | 18519 | 25993 |
| 496 | Neurosurgery | 1 | 3 | 3388 | 7343 |
| 496 | Schizophrenia | 1 | 3 | 3170 | 5990 |
| 496 | adolescence | 1 | 3 | 2009 | 4226 |
| 496 | Detectors | 1 | 3 | 4267 | 8366 |
| 501 | Pediatric Gastroenterology | 2 | 2 | 57 | 136 |
| 501 | Diagnosis | 1 | 2 | 911 | 2851 |
| 501 | Freeze-Drying | 1 | 2 | 699 | 2010 |
| 501 | Reproductive toxicology | 1 | 2 | 1138 | 2969 |
| 501 | Hypothermia | 1 | 2 | 699 | 2010 |
| 501 | Freeze Drying | 1 | 2 | 699 | 2010 |
| 501 | Gastrointestinal diseases | 2 | 2 | 607 | 4290 |
| 508 | Biotechnology | 1 | 1 | 34411 | 62173 |
| 508 | Bioengineering | 1 | 1 | 23610 | 45021 |
| 508 | Neonatal Nursing | 2 | 1 | 100 | 491 |
| 508 | Sarcopenia | 1 | 1 | 942 | 3057 |
| 508 | Traditional medicine | 1 | 1 | 260 | 933 |
| 513 | Steroids | 3 | 0 | 1425 | 7501 |