| 1 | Virology | 481 | 43.6K | 96 | 124 |
| 2 | Microbiology | 704 | 43.1K | 253 | 251 |
| 3 | Research | 956 | 30.1K | 255 | 315 |
| 4 | Public Health | 1,203 | 28.9K | 63 | 153 |
| 5 | Science | 295 | 22.1K | 1069 | 1109 |
| 6 | Cytology | 31 | 21.6K | 1761 | 393 |
| 7 | Medicine | 359 | 20.2K | 950 | 797 |
| 8 | Cell Biology | 14 | 20.0K | 2563 | 415 |
| 9 | preventive medicine | 726 | 19.3K | 3 | 17 |
| 10 | Health Policy | 723 | 19.2K | 8 | 17 |
| 11 | Biology | 146 | 12.6K | 1750 | 1596 |
| 12 | Epidemiology | 377 | 10.3K | 133 | 221 |
| 13 | Diagnostic microbiology | 110 | 10.1K | 67 | 50 |
| 14 | Physics | 69 | 9.7K | 3185 | 2029 |
| 15 | Natural history | 25 | 7.8K | 1664 | 1338 |
| 16 | Medical Microbiology | 200 | 7.4K | 106 | 195 |
| 17 | Molecular Biology | 102 | 6.7K | 1864 | 1516 |
| 18 | viruses | 116 | 6.5K | 162 | 185 |
| 19 | Immunology | 133 | 6.0K | 638 | 717 |
| 20 | Parasitic Diseases | 166 | 5.8K | 68 | 97 |
| 21 | Biochemistry | 132 | 5.0K | 2028 | 1869 |
| 22 | Parasitology | 128 | 4.4K | 169 | 141 |
| 23 | Neurology | 27 | 4.2K | 2437 | 1286 |
| 24 | Bacterial infections | 120 | 3.9K | 12 | 76 |
| 25 | Ecology | 58 | 3.5K | 1792 | 1547 |
| 26 | Microbial Ecology | 63 | 3.4K | 428 | 485 |
| 27 | Vaccines | 97 | 3.4K | 160 | 159 |
| 28 | Bacteria | 94 | 3.3K | 8 | 25 |
| 29 | infection | 99 | 3.2K | 104 | 174 |
| 30 | Infections | 86 | 2.9K | 64 | 142 |
| 31 | Environment | 43 | 2.8K | 1486 | 1503 |
| 32 | Immunity | 32 | 2.8K | 660 | 730 |
| 33 | Nutrition | 32 | 2.5K | 1583 | 928 |
| 34 | Chemistry | 66 | 2.4K | 3195 | 3202 |
| 35 | Diet | 21 | 2.2K | 854 | 496 |
| 36 | Mental Disorders | 26 | 2.1K | 1235 | 807 |
| 37 | Host-parasite interactions | 25 | 2.1K | 391 | 411 |
| 38 | Virulence | 33 | 2.0K | 299 | 364 |
| 39 | Surgery | 7 | 1.9K | 1860 | 752 |
| 40 | Molecular Microbiology | 29 | 1.8K | 250 | 285 |
| 41 | Transplantation | 44 | 1.7K | 294 | 349 |
| 42 | Psychiatry | 22 | 1.6K | 2033 | 1445 |
| 43 | Antibacterial agents | 22 | 1.5K | 111 | 54 |
| 44 | Biotechnology | 31 | 1.4K | 2591 | 2370 |
| 45 | Histology | 16 | 1.3K | 903 | 484 |
| 46 | Bacteriology | 21 | 1.1K | 804 | 816 |
| 47 | Microorganisms | 25 | 1.1K | 315 | 433 |
| 48 | drug resistance | 28 | 1.1K | 58 | 65 |
| 49 | Analytical Chemistry | 22 | 1.1K | 2206 | 1668 |
| 50 | Computational Biology | 38 | 1.1K | 707 | 903 |
| 51 | mycoses | 20 | 1.1K | 209 | 343 |
| 52 | Mycology | 28 | 1.1K | 505 | 453 |
| 53 | Bioinformatics | 30 | 1.0K | 615 | 717 |
| 54 | Food Microbiology | 16 | 1.0K | 488 | 386 |
| 55 | sex differences | 1 | 1.0K | 327 | 10 |
| 56 | gene mapping | 17 | 890 | 933 | 868 |
| 57 | Pharmaceutical Chemistry | 16 | 882 | 2220 | 1700 |
| 58 | Hematology | 9 | 811 | 2257 | 1485 |
| 59 | Genetics | 11 | 805 | 2706 | 2273 |
| 60 | Emerging infectious diseases | 17 | 801 | 52 | 40 |
| 61 | Bioengineering | 22 | 795 | 1973 | 2289 |
| 62 | Immunotherapy | 19 | 767 | 763 | 936 |
| 63 | genome | 25 | 757 | 512 | 934 |
| 64 | biological factors | 13 | 746 | 967 | 604 |
| 65 | Biophysics | 29 | 729 | 2597 | 2781 |
| 66 | Evolutionary Genetics | 18 | 727 | 107 | 85 |
| 66 | Molecular Epidemiology | 18 | 727 | 107 | 85 |
| 68 | Medical Laboratory Science | 19 | 660 | 844 | 923 |
| 69 | Quality of life | 15 | 651 | 579 | 530 |
| 70 | Infection control | 21 | 649 | 125 | 138 |
| 71 | disease outbreaks | 16 | 616 | 171 | 191 |
| 72 | Epidemics | 14 | 610 | 192 | 191 |
| 73 | Cancer | 13 | 602 | 2353 | 2164 |
| 74 | disease vectors | 16 | 593 | 344 | 304 |
| 75 | Respiratory Infections | 22 | 580 | 54 | 50 |
| 75 | Influenza | 22 | 580 | 27 | 32 |
| 77 | Pediatrics | 11 | 579 | 1689 | 1486 |
| 77 | Tropical Medicine | 18 | 579 | 781 | 560 |
| 77 | Allergy | 5 | 579 | 1212 | 976 |
| 80 | Clinical Chemistry | 11 | 567 | 1957 | 1584 |
| 81 | Environmental Microbiology | 12 | 565 | 710 | 767 |
| 82 | Public Policy | 10 | 559 | 1000 | 653 |
| 83 | Pathology | 27 | 549 | 926 | 1351 |
| 84 | Chemical analysis | 11 | 534 | 595 | 370 |
| 85 | Europe | 205 | 515 | 180 | 1240 |
| 86 | Obesity | 8 | 502 | 1532 | 1195 |
| 87 | Therapeutics | 10 | 490 | 1167 | 1069 |
| 87 | DNA polymerases | 4 | 490 | 454 | 472 |
| 89 | Genomics | 16 | 481 | 1755 | 1894 |
| 90 | Environmental Health | 25 | 472 | 2343 | 3383 |
| 91 | Zoonoses | 11 | 459 | 88 | 71 |
| 92 | Psychology | 11 | 457 | 3352 | 2503 |
| 93 | Travel | 23 | 452 | 165 | 185 |
| 94 | Spectrum analysis | 4 | 446 | 4475 | 2467 |
| 95 | Molecular structure | 6 | 443 | 2189 | 1196 |
| 96 | Biochemical Engineering | 1 | 442 | 5385 | 2720 |
| 97 | Molecular evolution | 11 | 436 | 871 | 949 |
| 98 | Toxicology | 12 | 427 | 3143 | 2972 |
| 99 | Liver diseases | 5 | 416 | 1382 | 1194 |
| 100 | Chromosome mapping | 13 | 400 | 988 | 1190 |
| 101 | Pharmacology | 9 | 377 | 4170 | 3609 |
| 102 | biological evolution | 8 | 369 | 1542 | 1556 |
| 103 | Attention | 10 | 364 | 1180 | 1075 |
| 104 | Proteome | 15 | 362 | 546 | 835 |
| 105 | Immune system | 3 | 361 | 1282 | 1078 |
| 106 | Information Systems | 2 | 355 | 2142 | 628 |
| 107 | Genetic engineering | 6 | 342 | 1922 | 1549 |
| 108 | Stem cells | 8 | 336 | 1228 | 1167 |
| 108 | Biodiversity | 7 | 336 | 1852 | 1469 |
| 110 | Nanotechnology | 5 | 326 | 4735 | 3609 |
| 111 | Germany | 89 | 325 | 42 | 81 |
| 112 | Botany | 4 | 324 | 4017 | 2754 |
| 113 | Metabolism | 7 | 317 | 2416 | 2355 |
| 113 | Industrial Microbiology | 2 | 317 | 2834 | 1419 |
| 115 | drug control | 3 | 313 | 429 | 166 |
| 116 | Mathematics | 1 | 312 | 8951 | 2859 |
| 117 | Biomedical Engineering | 7 | 307 | 4333 | 3380 |
| 117 | rehabilitation | 7 | 307 | 1717 | 1298 |
| 119 | gene therapy | 4 | 301 | 1213 | 940 |
| 120 | Proteomics | 9 | 294 | 714 | 865 |
| 121 | Endocrinology | 5 | 293 | 3042 | 2623 |
| 122 | Microscopy | 8 | 284 | 1201 | 740 |
| 123 | Visual Perception | 7 | 279 | 1388 | 1202 |
| 123 | Memory | 7 | 279 | 1517 | 1359 |
| 123 | Perception | 7 | 279 | 1553 | 1335 |
| 126 | Sociology | 4 | 276 | 3217 | 1737 |
| 127 | soil microbiology | 5 | 273 | 1301 | 1384 |
| 128 | United States | 5 | 272 | 5424 | 3236 |
| 129 | Geriatrics | 7 | 270 | 2565 | 1917 |
| 130 | Medical Anthropology | 3 | 267 | 1520 | 1056 |
| 131 | Hypertension | 6 | 266 | 1454 | 1709 |
| 131 | Physical fitness | 7 | 266 | 781 | 648 |
| 133 | Nervous system | 5 | 262 | 2444 | 2142 |
| 133 | Primates | 15 | 262 | 300 | 382 |
| 135 | Human genetics | 8 | 259 | 1853 | 3344 |
| 136 | Metabolic diseases | 5 | 255 | 2358 | 2302 |
| 137 | Primary health care | 17 | 252 | 717 | 1008 |
| 138 | Cell differentiation | 5 | 250 | 1657 | 1750 |
| 139 | Health promotion | 17 | 247 | 585 | 957 |
| 140 | United Kingdom | 12 | 244 | 896 | 1316 |
| 141 | Biometrics | 5 | 241 | 1001 | 687 |
| 142 | Herbal medicine | 4 | 239 | 645 | 480 |
| 143 | Medical innovations | 2 | 227 | 1581 | 1467 |
| 144 | Sleep Disorders | 6 | 225 | 1435 | 1193 |
| 144 | Sleep | 6 | 225 | 1448 | 1200 |
| 146 | Health | 6 | 222 | 1980 | 1652 |
| 147 | Systems Biology | 9 | 220 | 1064 | 1156 |
| 147 | hygiene | 12 | 220 | 165 | 282 |
| 149 | Health insurance | 1 | 217 | 1005 | 294 |
| 150 | Raman spectroscopy | 2 | 206 | 1201 | 490 |
| 151 | Genetic regulation | 6 | 205 | 979 | 1232 |
| 152 | drug therapy | 3 | 197 | 2899 | 2032 |
| 153 | Pediatric Neurology | 3 | 192 | 1254 | 1400 |
| 154 | health services accessibility | 6 | 190 | 754 | 603 |
| 155 | Medical genetics | 8 | 189 | 2274 | 3124 |
| 156 | Antibodies | 11 | 187 | 350 | 563 |
| 156 | Antigens | 11 | 187 | 501 | 748 |
| 158 | Health Services Administration | 2 | 186 | 1732 | 767 |
| 158 | health workforce | 2 | 186 | 280 | 171 |
| 160 | Parasites | 10 | 185 | 1026 | 1190 |
| 161 | Socioeconomic Factors | 4 | 181 | 715 | 533 |
| 161 | Foodborne diseases | 2 | 181 | 400 | 154 |
| 161 | drugs | 4 | 181 | 2422 | 1810 |
| 161 | cloning | 3 | 181 | 813 | 884 |
| 165 | Organic Chemistry | 3 | 178 | 3583 | 2617 |
| 165 | Bioorganic chemistry | 3 | 178 | 3237 | 2538 |
| 167 | drug development | 2 | 177 | 1640 | 1542 |
| 168 | Clinical Pharmacology | 2 | 176 | 2205 | 1244 |
| 169 | Zoology | 3 | 171 | 3068 | 1805 |
| 170 | Membranes | 4 | 167 | 1775 | 1783 |
| 171 | sexual behavior | 3 | 165 | 734 | 528 |
| 172 | behavioral medicine | 2 | 162 | 1987 | 1407 |
| 172 | civil rights | 2 | 162 | 559 | 148 |
| 172 | Social policy | 2 | 162 | 1480 | 575 |
| 172 | Sexuality | 2 | 162 | 432 | 132 |
| 172 | Respiration | 3 | 162 | 1821 | 1480 |
| 177 | Molecular cloning | 3 | 161 | 1794 | 1276 |
| 177 | Genetic recombination | 3 | 161 | 1767 | 1268 |
| 177 | Recombinant DNA | 3 | 161 | 1892 | 1368 |
| 180 | Steroids | 3 | 159 | 1182 | 896 |
| 180 | Exercise | 4 | 159 | 1342 | 917 |
| 180 | sports injuries | 3 | 159 | 655 | 282 |
| 183 | miniaturization | 3 | 158 | 2245 | 1979 |
| 184 | Global Health | 8 | 157 | 686 | 656 |
| 184 | Technology | 4 | 157 | 4737 | 3439 |
| 186 | Hormones | 2 | 153 | 1890 | 1372 |
| 187 | ecosystem | 6 | 149 | 1126 | 1501 |
| 188 | Child | 5 | 148 | 2405 | 2106 |
| 188 | Cardiovascular diseases | 6 | 148 | 1423 | 1370 |
| 188 | Genetic therapy | 3 | 148 | 1503 | 1411 |
| 191 | exobiology | 1 | 142 | 693 | 405 |
| 192 | food technology | 3 | 140 | 3031 | 2560 |
| 192 | Mental illness | 2 | 140 | 3008 | 2356 |
| 192 | proteins | 11 | 140 | 1366 | 2022 |
| 195 | Diabetes mellitus | 7 | 139 | 1753 | 2580 |
| 195 | Diabetes | 7 | 139 | 1861 | 2662 |
| 197 | transgenic organisms | 4 | 136 | 221 | 267 |
| 198 | Health Services Research | 11 | 134 | 992 | 1522 |
| 199 | Carcinogenesis | 1 | 131 | 1978 | 1234 |
| 199 | mammals | 2 | 131 | 1571 | 900 |
| 201 | Food | 2 | 130 | 4411 | 3235 |
| 202 | Clinical Immunology | 4 | 129 | 1428 | 1340 |
| 203 | Medical Technology | 6 | 128 | 1446 | 1731 |
| 203 | Fungi | 3 | 128 | 1216 | 1170 |
| 205 | Plasma chemistry | 1 | 127 | 826 | 322 |
| 205 | Plasma polymerization | 1 | 127 | 569 | 225 |
| 207 | Molecular ecology | 4 | 126 | 1111 | 1527 |
| 208 | Public Health Administration | 41 | 125 | 70 | 245 |
| 208 | epidemiologic methods | 2 | 125 | 249 | 85 |
| 210 | Ethnology | 3 | 124 | 1781 | 947 |
| 211 | drug addiction | 5 | 121 | 1012 | 1210 |
| 211 | alcoholism | 5 | 121 | 1336 | 1468 |
| 213 | Antiviral agents | 6 | 119 | 246 | 345 |
| 213 | Chronic diseases | 5 | 119 | 643 | 953 |
| 215 | Meteorology | 2 | 118 | 3226 | 2685 |
| 216 | Biocompatible Materials | 2 | 116 | 4861 | 4390 |
| 216 | risk factors | 5 | 116 | 681 | 794 |
| 218 | Nanostructures | 1 | 115 | 3966 | 2379 |
| 218 | Bacterial diseases | 6 | 115 | 108 | 272 |
| 220 | Smoking | 3 | 114 | 846 | 835 |
| 221 | Globalization | 4 | 113 | 487 | 483 |
| 221 | international cooperation | 4 | 113 | 539 | 592 |
| 223 | air quality management | 2 | 112 | 826 | 546 |
| 223 | indoor air pollution | 2 | 112 | 599 | 408 |
| 223 | Ventilation | 2 | 112 | 804 | 477 |
| 223 | Sick building syndrome | 2 | 112 | 599 | 408 |
| 227 | Adolescent | 6 | 110 | 1797 | 2053 |
| 228 | nucleic acids | 5 | 107 | 1695 | 2345 |
| 229 | Immunopathology | 6 | 105 | 1197 | 1682 |
| 229 | Yeast | 2 | 105 | 635 | 525 |
| 231 | Oncogenes | 3 | 103 | 1395 | 1890 |
| 232 | Dermatology | 2 | 93 | 2600 | 1952 |
| 232 | Neurosurgery | 2 | 93 | 1518 | 1375 |
| 234 | Combinatorial chemistry | 1 | 90 | 1784 | 1200 |
| 235 | Developing countries | 3 | 86 | 3015 | 2597 |
| 236 | Lung Transplantation | 1 | 84 | 923 | 592 |
| 236 | Heart transplantation | 1 | 84 | 923 | 592 |
| 238 | Biosensors | 2 | 83 | 1789 | 2123 |
| 238 | Synaptic Transmission | 3 | 83 | 589 | 690 |
| 238 | Substance Abuse | 3 | 83 | 1679 | 1602 |
| 238 | Bioelectronics | 2 | 83 | 1555 | 1950 |
| 242 | Bioremediation | 2 | 79 | 1298 | 1183 |
| 242 | Genetically modified organisms | 2 | 79 | 30 | 24 |
| 242 | safety | 2 | 79 | 127 | 72 |
| 245 | Catalysis | 1 | 78 | 5017 | 3987 |
| 245 | enzymes | 1 | 78 | 2788 | 2065 |
| 247 | Medical Ethics | 4 | 77 | 1157 | 1047 |
| 248 | Nonlinear Dynamics | 2 | 74 | 2846 | 2354 |
| 248 | Statistical physics | 2 | 74 | 4657 | 3686 |
| 250 | Optics | 3 | 71 | 5760 | 4288 |
| 250 | Neurophysiology | 1 | 71 | 4775 | 3872 |
| 252 | Otolaryngology | 1 | 70 | 1196 | 720 |
| 253 | Microelectronics | 2 | 68 | 2519 | 2353 |
| 253 | Research Design | 5 | 68 | 1104 | 1740 |
| 253 | pain management | 2 | 68 | 1069 | 881 |
| 253 | pain | 2 | 68 | 2093 | 2016 |
| 257 | Community Psychiatry | 2 | 65 | 1520 | 1513 |
| 257 | Molecular Genetics | 3 | 65 | 2171 | 2885 |
| 257 | Behavior | 3 | 65 | 3831 | 4759 |
| 260 | Personality Disorders | 1 | 64 | 549 | 393 |
| 261 | animal diseases | 2 | 63 | 680 | 634 |
| 262 | animals | 3 | 62 | 1557 | 1415 |
| 262 | Cell death | 1 | 62 | 2149 | 2095 |
| 262 | DNA | 3 | 62 | 721 | 820 |
| 265 | Alternative Medicine | 1 | 61 | 3562 | 2533 |
| 265 | complementary therapies | 1 | 61 | 3931 | 2636 |
| 265 | health planning | 2 | 61 | 3257 | 2698 |
| 268 | Veterinary Immunology | 3 | 60 | 424 | 508 |
| 269 | Mental Health | 3 | 57 | 2008 | 2132 |
| 269 | Plant genetic engineering | 2 | 57 | 1355 | 1519 |
| 269 | transgenic animals | 2 | 57 | 379 | 507 |
| 269 | Transgenic plants | 2 | 57 | 725 | 871 |
| 273 | Anthropology | 2 | 53 | 2269 | 1713 |
| 273 | adolescence | 3 | 53 | 1015 | 1302 |
| 273 | Human evolution | 2 | 53 | 598 | 708 |
| 273 | System analysis | 2 | 53 | 3526 | 3095 |
| 277 | arthritis | 2 | 52 | 1777 | 2240 |
| 278 | Psychiatric Epidemiology | 1 | 51 | 1060 | 1062 |
| 278 | drug abuse | 6 | 51 | 465 | 900 |
| 278 | harm reduction | 6 | 51 | 120 | 334 |
| 281 | Pharmacy | 2 | 50 | 3085 | 3166 |
| 281 | Bioethics | 6 | 50 | 658 | 1059 |
| 283 | infrared radiation | 1 | 49 | 1296 | 765 |
| 283 | Bipolar Disorder | 1 | 49 | 717 | 664 |
| 285 | Language Disorders | 1 | 48 | 1573 | 1113 |
| 285 | Psycholinguistics | 1 | 48 | 1678 | 1364 |
| 285 | Writing | 1 | 48 | 540 | 434 |
| 285 | Reading | 1 | 48 | 995 | 729 |
| 289 | Sports Medicine | 3 | 47 | 3005 | 3022 |
| 289 | Hospitals | 2 | 47 | 1058 | 1102 |
| 291 | Data Mining | 3 | 46 | 2180 | 2850 |
| 291 | data collection | 3 | 46 | 1468 | 2087 |
| 293 | Malaria | 3 | 45 | 874 | 1235 |
| 293 | wildlife diseases | 2 | 45 | 225 | 162 |
| 293 | Disease | 2 | 45 | 532 | 1111 |
| 296 | Sports | 5 | 44 | 1817 | 2377 |
| 297 | Child Development | 2 | 43 | 2772 | 3060 |
| 297 | scientific societies | 2 | 43 | 1253 | 1392 |
| 299 | Demography | 2 | 41 | 1036 | 1172 |
| 299 | Infrared spectroscopy | 1 | 41 | 797 | 629 |
| 299 | Population | 2 | 41 | 1548 | 1587 |
| 302 | Health Education | 2 | 40 | 2888 | 2964 |
| 302 | Adolescent Psychology | 2 | 40 | 1212 | 1342 |
| 304 | Ophthalmology | 2 | 39 | 2486 | 2827 |
| 304 | Clinical Psychology | 4 | 39 | 1495 | 2577 |
| 306 | Protozoa | 4 | 37 | 412 | 818 |
| 307 | Population Genetics | 1 | 36 | 2241 | 2354 |
| 308 | Metallurgy | 1 | 35 | 4047 | 3196 |
| 308 | Electrochemistry | 1 | 35 | 5696 | 4848 |
| 310 | Education | 1 | 33 | 7125 | 4691 |
| 310 | Physical Therapy | 1 | 33 | 2557 | 2420 |
| 310 | Genetic translocation | 2 | 33 | 293 | 418 |
| 310 | plasmids | 2 | 33 | 293 | 418 |
| 310 | Entomology | 1 | 33 | 4008 | 3098 |
| 310 | drug evaluation | 2 | 33 | 1990 | 2486 |
| 316 | Statistics | 3 | 31 | 3177 | 3400 |
| 316 | Hemodynamics | 1 | 31 | 1169 | 1394 |
| 318 | Geography | 1 | 30 | 4149 | 3583 |
| 318 | Biogeography | 1 | 30 | 1748 | 2034 |
| 318 | Human Rights | 1 | 30 | 1201 | 813 |
| 318 | Animal health | 2 | 30 | 692 | 612 |
| 322 | Environmental Toxicology | 1 | 29 | 4384 | 4784 |
| 322 | Animal Behavior | 1 | 29 | 3263 | 3449 |
| 322 | Animal ecology | 1 | 29 | 2060 | 1957 |
| 322 | Ethology | 1 | 29 | 2617 | 2901 |
| 322 | Environmental pollutants | 3 | 29 | 2747 | 4265 |
| 322 | Social behavior | 1 | 29 | 2240 | 2096 |
| 322 | drug toxicity | 1 | 29 | 1078 | 1190 |
| 322 | gastrointestinal tract | 1 | 29 | 703 | 920 |
| 330 | Serology | 3 | 28 | 632 | 1086 |
| 330 | Anemia | 1 | 28 | 54 | 99 |
| 330 | Bones | 1 | 28 | 1756 | 1856 |
| 333 | Physical Chemistry | 3 | 27 | 2681 | 3686 |
| 333 | Behavioral research | 2 | 27 | 749 | 926 |
| 333 | blood transfusion | 3 | 27 | 955 | 1424 |
| 333 | Amyloidosis | 1 | 27 | 323 | 347 |
| 333 | Africa | 2 | 27 | 2457 | 2313 |
| 333 | Jurisprudence | 1 | 27 | 1839 | 1526 |
| 339 | Agricultural Chemistry | 1 | 26 | 3948 | 3970 |
| 339 | Conservation Biology | 1 | 26 | 2188 | 2261 |
| 339 | Wildlife conservation | 1 | 26 | 2139 | 2428 |
| 339 | Women's health | 2 | 26 | 2079 | 2629 |
| 343 | cytokines | 3 | 25 | 1587 | 2836 |
| 343 | Phylogeny | 1 | 25 | 1631 | 1970 |
| 345 | Gene expression regulation | 3 | 24 | 1255 | 2168 |
| 345 | protein | 3 | 24 | 1517 | 2295 |
| 347 | medical education | 1 | 23 | 3884 | 3484 |
| 348 | Environmental monitoring | 1 | 22 | 6458 | 7222 |
| 348 | X-ray spectroscopy | 1 | 22 | 521 | 437 |
| 348 | food contamination | 1 | 22 | 2142 | 2082 |
| 348 | Digestive system diseases | 1 | 22 | 1867 | 2029 |
| 352 | Radiology | 1 | 21 | 3091 | 2748 |
| 352 | Chemotherapy | 1 | 21 | 2788 | 3062 |
| 352 | Critical Care | 2 | 21 | 2435 | 3563 |
| 352 | emergency management | 2 | 21 | 1345 | 1981 |
| 352 | Immunopharmacology | 2 | 21 | 1558 | 2341 |
| 352 | Vaccination | 3 | 21 | 281 | 754 |
| 352 | Radiobiology | 1 | 21 | 2711 | 2930 |
| 352 | free radicals | 1 | 21 | 2553 | 3080 |
| 360 | Social Sciences | 1 | 20 | 7065 | 5478 |
| 360 | Quantitative Research | 1 | 20 | 395 | 515 |
| 362 | Genetic Toxicology | 1 | 19 | 1042 | 1458 |
| 362 | Clinical Biochemistry | 3 | 19 | 1633 | 2678 |
| 362 | mutation | 1 | 19 | 1237 | 1575 |
| 362 | Pesticides | 1 | 19 | 1435 | 1549 |
| 362 | Culture techniques | 2 | 19 | 474 | 684 |
| 367 | Gender Studies | 1 | 18 | 941 | 1012 |
| 367 | Queer Studies | 1 | 18 | 585 | 725 |
| 367 | Economic History | 1 | 18 | 6239 | 5053 |
| 367 | Economic Development | 1 | 18 | 3255 | 3383 |
| 367 | Respiratory system | 1 | 18 | 1215 | 1549 |
| 367 | homosexuality | 1 | 18 | 809 | 919 |
| 367 | Development | 1 | 18 | 1585 | 1926 |
| 367 | Economic Assistance | 1 | 18 | 1443 | 1769 |
| 367 | world | 1 | 18 | 1436 | 1973 |
| 376 | Neuropsychology | 1 | 17 | 4022 | 4512 |
| 376 | Polymers | 1 | 17 | 6703 | 6868 |
| 376 | Forest Ecology | 1 | 17 | 1884 | 2303 |
| 376 | Patient education | 1 | 17 | 1250 | 1707 |
| 376 | Anxiety Disorders | 1 | 17 | 1047 | 1483 |
| 376 | Crystallography | 2 | 17 | 2348 | 2317 |
| 376 | Anxiety | 1 | 17 | 1051 | 1478 |
| 376 | Forest Management | 1 | 17 | 1838 | 2169 |
| 376 | Calorimetry | 1 | 17 | 2282 | 2318 |
| 376 | X-ray crystallography | 2 | 17 | 855 | 1084 |
| 376 | counseling | 1 | 17 | 2574 | 2700 |
| 376 | polymerization | 1 | 17 | 5779 | 5848 |
| 376 | Thermal analysis | 1 | 17 | 2282 | 2318 |
| 389 | Mass Spectrometry | 2 | 16 | 1725 | 2510 |
| 390 | Economics | 1 | 14 | 6555 | 5991 |
| 390 | Astrophysics | 1 | 14 | 4640 | 4800 |
| 392 | Adolescent Medicine | 1 | 13 | 1360 | 1834 |
| 393 | Electronics | 3 | 12 | 4196 | 5533 |
| 393 | Cytogenetics | 3 | 12 | 1927 | 3740 |
| 393 | Neurovirology | 2 | 12 | 366 | 816 |
| 393 | Image Processing | 3 | 12 | 2454 | 4055 |
| 393 | Ichthyology | 1 | 12 | 1010 | 1032 |
| 393 | Artificial Organs | 1 | 12 | 1326 | 1515 |
| 393 | Plant physiology | 1 | 12 | 3458 | 4246 |
| 393 | Electrons | 3 | 12 | 106 | 240 |
| 393 | Fisheries | 1 | 12 | 2874 | 3164 |
| 393 | Fish | 1 | 12 | 795 | 867 |
| 403 | Surface Chemistry | 1 | 11 | 5726 | 6680 |
| 403 | Animal Biotechnology | 1 | 11 | 403 | 547 |
| 403 | Photonics | 2 | 11 | 2375 | 3526 |
| 403 | Well-being | 1 | 11 | 362 | 514 |
| 403 | Ornithology | 1 | 11 | 1752 | 1846 |
| 403 | Colloids | 1 | 11 | 5645 | 6824 |
| 403 | Birds | 1 | 11 | 2040 | 2060 |
| 403 | Decision making | 1 | 11 | 3102 | 3684 |
| 411 | Histochemistry | 1 | 10 | 2148 | 2632 |
| 411 | Dynamics | 1 | 10 | 3380 | 3459 |
| 411 | Quality Control | 1 | 10 | 3586 | 4353 |
| 411 | Origin of life | 1 | 10 | 331 | 478 |
| 411 | histological techniques | 1 | 10 | 1524 | 2002 |
| 411 | Reproductive toxicology | 1 | 10 | 1002 | 1433 |
| 411 | food handling | 1 | 10 | 1779 | 2602 |
| 411 | Evolution | 1 | 10 | 3451 | 4337 |
| 411 | Organelle biogenesis | 1 | 10 | 482 | 660 |
| 420 | Nursing | 1 | 9 | 3788 | 4188 |
| 420 | Asthma | 1 | 9 | 1483 | 1978 |
| 420 | Social Psychology | 1 | 9 | 3773 | 4571 |
| 420 | Nuclear Chemistry | 2 | 9 | 1633 | 2292 |
| 420 | Radiation Protection | 1 | 9 | 1506 | 1492 |
| 420 | Radiochemistry | 2 | 9 | 1554 | 2145 |
| 420 | radiation monitoring | 1 | 9 | 1365 | 1395 |
| 420 | biobanks | 1 | 9 | 383 | 567 |
| 420 | Biofilms | 1 | 9 | 408 | 815 |
| 420 | Radiation dosimetry | 1 | 9 | 1106 | 1133 |
| 430 | Engineering | 1 | 8 | 8212 | 8776 |
| 430 | Ethics | 1 | 8 | 2006 | 2476 |
| 430 | Nuclear Physics | 1 | 8 | 5712 | 6107 |
| 430 | Solid State Physics | 1 | 8 | 5505 | 6199 |
| 430 | Engineering Ethics | 1 | 8 | 445 | 758 |
| 430 | Control Theory | 1 | 8 | 2913 | 3149 |
| 430 | Professional ethics | 1 | 8 | 626 | 1028 |
| 430 | psychotherapy | 2 | 8 | 1883 | 2999 |
| 430 | biomedicine | 1 | 8 | 1904 | 2808 |
| 439 | Graph Theory | 1 | 7 | 1463 | 1396 |
| 439 | Family Therapy | 1 | 7 | 1375 | 1795 |
| 439 | child mental health | 1 | 7 | 890 | 1300 |
| 439 | venom | 6 | 7 | 598 | 2236 |
| 439 | Toxins | 6 | 7 | 679 | 2424 |
| 444 | Oral Medicine | 1 | 6 | 1381 | 1807 |
| 444 | Psychometrics | 2 | 6 | 595 | 1098 |
| 444 | health behavior | 2 | 6 | 1446 | 2915 |
| 444 | Crystallization | 1 | 6 | 1066 | 1319 |
| 444 | occupational diseases | 2 | 6 | 1350 | 3006 |
| 444 | plant molecular biology | 1 | 6 | 2682 | 3675 |
| 444 | Soviet Union | 1 | 6 | 1618 | 1718 |
| 444 | Plants | 1 | 6 | 3724 | 4607 |
| 452 | Oncology | 1 | 5 | 4234 | 5929 |
| 452 | Artificial Intelligence | 2 | 5 | 5143 | 7574 |
| 452 | Public Health Informatics | 2 | 5 | 144 | 217 |
| 452 | Signal Transduction | 1 | 5 | 2541 | 3653 |
| 452 | Antioxidants | 1 | 5 | 1494 | 2355 |
| 452 | Soft Condensed Matter | 1 | 5 | 1915 | 2614 |
| 452 | Oxidation-reduction | 1 | 5 | 1499 | 2385 |
| 459 | Environmental Engineering | 1 | 4 | 6851 | 8736 |
| 459 | Nutrition physiology | 1 | 4 | 1580 | 2443 |
| 459 | Radiopharmaceuticals | 1 | 4 | 828 | 1052 |
| 459 | sanitation | 1 | 4 | 2791 | 4094 |
| 459 | Inflammation | 1 | 4 | 2454 | 3610 |
| 459 | visualization | 4 | 4 | 1731 | 3208 |
| 459 | cell adhesion molecules | 1 | 4 | 1100 | 1852 |
| 459 | Radioisotopes | 1 | 4 | 2354 | 3086 |
| 459 | Chromosomes | 1 | 4 | 1852 | 2742 |
| 459 | cell interaction | 1 | 4 | 2226 | 3283 |
| 459 | Mental Health Counseling | 1 | 4 | 251 | 364 |
| 459 | Cell communication | 1 | 4 | 1653 | 2623 |
| 459 | Pollution | 3 | 4 | 6188 | 10767 |
| 472 | Developmental Psychology | 1 | 3 | 1920 | 2836 |
| 472 | Genetic disorders | 3 | 3 | 623 | 1560 |
| 472 | Chromosome abnormalities | 3 | 3 | 52 | 68 |
| 472 | Liposomes | 1 | 3 | 1110 | 1751 |
| 472 | Personality Assessment | 1 | 3 | 976 | 1554 |
| 472 | human development | 1 | 3 | 1416 | 2234 |
| 472 | adulthood | 1 | 3 | 251 | 565 |
| 479 | Geology | 1 | 2 | 4795 | 6215 |
| 479 | Obstetrics | 1 | 2 | 4447 | 6094 |
| 479 | Occupational Health | 1 | 2 | 2365 | 3479 |
| 479 | Photography | 2 | 2 | 3852 | 4495 |
| 479 | Analytical Biochemistry | 1 | 2 | 3316 | 4910 |
| 479 | industrial hygiene | 1 | 2 | 2487 | 3503 |
| 479 | monoclonal antibodies | 2 | 2 | 447 | 1128 |
| 479 | Social Media | 1 | 2 | 461 | 660 |
| 479 | Pregnancy | 1 | 2 | 1847 | 2942 |
| 488 | Anatomy | 1 | 1 | 3570 | 5042 |
| 488 | General Surgery | 1 | 1 | 1509 | 2301 |
| 488 | Immunochemistry | 1 | 1 | 2066 | 3105 |
| 488 | breastfeeding | 1 | 1 | 1151 | 2000 |
| 492 | Computer Graphics | 1 | 0 | 2978 | 4457 |
| 492 | Emergency Medical Services | 1 | 0 | 1761 | 3019 |
| 492 | Geophysics | 1 | 0 | 5657 | 7647 |
| 492 | Psychosomatic Medicine | 1 | 0 | 1639 | 2712 |
| 492 | Immunohematology | 1 | 0 | 322 | 621 |
| 492 | Atmospheric Physics | 1 | 0 | 2764 | 4031 |
| 492 | Emergency Medicine | 1 | 0 | 3000 | 4501 |
| 492 | environmental protection | 2 | 0 | 5076 | 8913 |
| 492 | Open source software | 1 | 0 | 216 | 459 |
| 492 | Neural circuitry | 1 | 0 | 3467 | 5023 |
| 492 | urban health | 1 | 0 | 626 | 1346 |
| 492 | patents | 1 | 0 | 420 | 1002 |
| 492 | Organ transplantation | 1 | 0 | 801 | 1291 |
| 492 | Business | 1 | 0 | 3921 | 5542 |
| 492 | Blood group antigens | 1 | 0 | 212 | 435 |
| 492 | men | 1 | 0 | 686 | 1380 |
| 492 | management | 1 | 0 | 5875 | 8302 |
| 492 | environmental pollution | 2 | 0 | 5845 | 9722 |
| 492 | commerce | 1 | 0 | 3021 | 4367 |
| 492 | Psychophysiology | 1 | 0 | 4629 | 6600 |
