| 1 | Chemical Engineering | 55 | 6.3K | 1165 | 568 |
| 2 | Medicine | 215 | 4.0K | 1178 | 1942 |
| 3 | Biochemical Engineering | 21 | 3.7K | 1277 | 674 |
| 4 | Biochemistry | 136 | 3.4K | 1637 | 1898 |
| 5 | Environmental Health | 135 | 3.3K | 560 | 891 |
| 6 | Biology | 119 | 3.0K | 1584 | 2721 |
| 7 | Pharmacology | 102 | 2.9K | 917 | 993 |
| 8 | Oncology | 27 | 2.8K | 639 | 617 |
| 9 | Ecology | 44 | 2.7K | 1773 | 1501 |
| 10 | Nutrition | 116 | 2.5K | 497 | 749 |
| 11 | Pollution | 51 | 2.5K | 1384 | 1359 |
| 12 | Molecular Biology | 137 | 2.3K | 1279 | 2230 |
| 13 | Physiology | 73 | 2.3K | 775 | 840 |
| 14 | Toxicology | 84 | 2.2K | 775 | 934 |
| 15 | Metabolic diseases | 104 | 2.1K | 263 | 623 |
| 16 | environmental pollution | 26 | 2.0K | 1588 | 1059 |
| 17 | Neurology | 69 | 2.0K | 1149 | 1427 |
| 18 | Diabetes mellitus | 100 | 1.9K | 194 | 493 |
| 18 | Diabetes | 100 | 1.9K | 230 | 517 |
| 20 | Cell Biology | 65 | 1.7K | 874 | 1441 |
| 21 | Public Health | 83 | 1.6K | 869 | 1221 |
| 22 | Chemistry | 63 | 1.6K | 2695 | 3155 |
| 23 | Environmental Policy | 12 | 1.5K | 1565 | 843 |
| 24 | Endocrinology | 62 | 1.5K | 602 | 924 |
| 25 | Environment | 23 | 1.4K | 1844 | 1858 |
| 26 | Environmental monitoring | 34 | 1.4K | 1046 | 1065 |
| 27 | Environmental Management | 16 | 1.4K | 1218 | 748 |
| 28 | Cytology | 57 | 1.3K | 1026 | 1651 |
| 29 | Mycology | 26 | 1.3K | 454 | 344 |
| 30 | Research | 78 | 1.2K | 1862 | 2746 |
| 31 | environmental protection | 32 | 1.1K | 894 | 943 |
| 31 | Science | 52 | 1.1K | 2887 | 4542 |
| 33 | Biotechnology | 42 | 1.1K | 1839 | 2317 |
| 34 | Diet | 32 | 1.0K | 520 | 712 |
| 35 | Toxins | 39 | 967 | 75 | 102 |
| 36 | complementary therapies | 36 | 932 | 299 | 295 |
| 37 | Alternative Medicine | 35 | 931 | 300 | 291 |
| 38 | Food | 26 | 902 | 984 | 975 |
| 39 | Nervous system | 15 | 891 | 1040 | 890 |
| 40 | Microbiology | 56 | 876 | 1681 | 2779 |
| 41 | Epidemiology | 38 | 864 | 944 | 1125 |
| 42 | Child | 19 | 798 | 881 | 619 |
| 43 | locomotion | 11 | 792 | 254 | 123 |
| 43 | posture | 11 | 792 | 254 | 123 |
| 43 | gait | 11 | 792 | 254 | 123 |
| 43 | walking | 11 | 792 | 254 | 123 |
| 47 | Adolescent | 19 | 768 | 687 | 519 |
| 48 | Water pollution | 25 | 757 | 919 | 1106 |
| 49 | Bioengineering | 17 | 726 | 1949 | 2019 |
| 50 | Engineering | 45 | 705 | 1040 | 1185 |
| 51 | Genetics | 28 | 690 | 1271 | 1894 |
| 52 | rehabilitation | 24 | 686 | 635 | 683 |
| 53 | cell interaction | 12 | 681 | 517 | 387 |
| 54 | cell physiology | 23 | 666 | 474 | 727 |
| 55 | Waste management | 21 | 650 | 381 | 269 |
| 55 | Water quality management | 23 | 650 | 539 | 454 |
| 57 | Immunology | 30 | 622 | 1276 | 1858 |
| 58 | Obstetrics | 29 | 547 | 643 | 807 |
| 59 | Inflammation | 13 | 537 | 514 | 507 |
| 60 | Cancer | 26 | 531 | 1315 | 1860 |
| 61 | China | 18 | 519 | 1160 | 890 |
| 62 | Metabolism | 19 | 513 | 1079 | 1446 |
| 63 | Parasitology | 38 | 498 | 576 | 907 |
| 64 | Biophysics | 24 | 494 | 2332 | 2805 |
| 65 | disabilities | 16 | 493 | 214 | 178 |
| 66 | Obesity | 10 | 487 | 1065 | 969 |
| 67 | Ultrasonics | 4 | 480 | 1041 | 466 |
| 67 | Sonochemistry | 4 | 480 | 468 | 241 |
| 69 | Water Purification | 14 | 474 | 442 | 295 |
| 70 | Environmental Engineering | 31 | 468 | 1133 | 1872 |
| 71 | Photochemistry | 7 | 458 | 1175 | 655 |
| 71 | Photobiology | 7 | 458 | 898 | 462 |
| 73 | Signal Transduction | 7 | 456 | 940 | 794 |
| 74 | Industrial Safety | 19 | 437 | 274 | 339 |
| 75 | drugs | 12 | 431 | 1048 | 866 |
| 76 | Occupational Health | 21 | 421 | 246 | 295 |
| 77 | Oxidative stress | 7 | 418 | 726 | 651 |
| 78 | Metabolic syndrome | 14 | 409 | 32 | 29 |
| 79 | Pharmaceutical Chemistry | 21 | 405 | 1610 | 2110 |
| 80 | cytokines | 18 | 404 | 405 | 637 |
| 81 | Psychiatry | 25 | 403 | 1511 | 2199 |
| 82 | Cellular senescence | 6 | 388 | 499 | 379 |
| 83 | Nanotechnology | 9 | 384 | 3094 | 2797 |
| 84 | Surface Chemistry | 7 | 371 | 2601 | 2025 |
| 84 | Colloids | 7 | 371 | 2513 | 2077 |
| 86 | Tropical Medicine | 14 | 365 | 784 | 660 |
| 87 | radioactive waste | 4 | 361 | 667 | 532 |
| 87 | industrial waste | 4 | 361 | 694 | 533 |
| 87 | Hazardous waste | 4 | 361 | 802 | 566 |
| 90 | Neurophysiology | 16 | 358 | 1243 | 1647 |
| 91 | Reproduction | 10 | 356 | 1280 | 1081 |
| 92 | Pregnancy | 19 | 354 | 199 | 299 |
| 93 | industrial hygiene | 20 | 351 | 271 | 222 |
| 94 | free radicals | 4 | 334 | 1180 | 968 |
| 95 | mycoses | 8 | 332 | 451 | 599 |
| 96 | voice | 21 | 331 | 83 | 130 |
| 97 | preimplantation genetic diagnosis | 6 | 330 | 279 | 145 |
| 97 | embryo transfer | 6 | 330 | 291 | 155 |
| 99 | Music | 20 | 322 | 207 | 218 |
| 100 | viruses | 9 | 321 | 858 | 1037 |
| 101 | Pathology | 13 | 316 | 1141 | 1406 |
| 102 | Occupational Therapy | 18 | 311 | 283 | 215 |
| 103 | Pediatrics | 31 | 309 | 624 | 1474 |
| 104 | Analytical Chemistry | 16 | 308 | 2230 | 2560 |
| 105 | Medical genetics | 13 | 304 | 1413 | 1993 |
| 106 | Immunopharmacology | 15 | 298 | 311 | 477 |
| 107 | Neurochemistry | 19 | 291 | 948 | 1460 |
| 108 | antibiotics | 1 | 290 | 491 | 58 |
| 109 | Neuropsychology | 17 | 289 | 920 | 1262 |
| 109 | Enteral nutrition | 9 | 289 | 402 | 507 |
| 109 | Parenteral nutrition | 9 | 289 | 512 | 613 |
| 109 | Cell communication | 9 | 289 | 378 | 463 |
| 113 | Psychology | 14 | 288 | 2370 | 2512 |
| 114 | environmental exposure | 8 | 287 | 1103 | 1096 |
| 115 | Medical Microbiology | 9 | 284 | 1348 | 1645 |
| 116 | Immunotherapy | 14 | 279 | 822 | 1350 |
| 117 | Cardiovascular diseases | 19 | 277 | 576 | 843 |
| 118 | Hydrology | 6 | 274 | 1899 | 1364 |
| 118 | Mental Disorders | 20 | 274 | 1135 | 1913 |
| 120 | Marine Biology | 9 | 271 | 1538 | 1513 |
| 121 | Pharmaceutical Technology | 8 | 268 | 957 | 892 |
| 122 | air quality management | 6 | 267 | 280 | 240 |
| 123 | Recycling | 1 | 266 | 1025 | 529 |
| 124 | Psychophysiology | 6 | 261 | 1897 | 1802 |
| 125 | Drug delivery systems | 15 | 257 | 561 | 1100 |
| 126 | Brain | 18 | 256 | 1108 | 1686 |
| 127 | Catalysis | 2 | 251 | 3543 | 2392 |
| 128 | Anti-inflammatory agents | 6 | 249 | 101 | 72 |
| 129 | Physical Therapy | 20 | 247 | 398 | 796 |
| 130 | Parasites | 27 | 239 | 390 | 875 |
| 131 | Hematology | 15 | 237 | 1420 | 1947 |
| 132 | Virology | 13 | 235 | 1526 | 2592 |
| 133 | Histology | 10 | 231 | 1043 | 1256 |
| 133 | Sedimentology | 9 | 231 | 281 | 361 |
| 133 | soil pollution | 9 | 231 | 182 | 212 |
| 133 | Natural history | 2 | 231 | 4743 | 4547 |
| 137 | Climatology | 3 | 230 | 1721 | 1171 |
| 137 | drug resistance | 7 | 230 | 353 | 417 |
| 137 | bioclimatology | 3 | 230 | 938 | 458 |
| 137 | Climate | 3 | 230 | 573 | 337 |
| 137 | weather | 3 | 230 | 548 | 286 |
| 142 | Physics | 2 | 226 | 9480 | 7388 |
| 142 | Mutagenesis | 8 | 226 | 158 | 159 |
| 144 | Materials Science | 4 | 222 | 4067 | 2971 |
| 145 | Chemical industry | 3 | 216 | 1429 | 563 |
| 146 | DNA repair | 3 | 214 | 286 | 189 |
| 147 | Multiple sclerosis | 12 | 212 | 205 | 204 |
| 148 | Drug design | 14 | 211 | 676 | 1144 |
| 149 | Environmental Toxicology | 5 | 208 | 1969 | 1903 |
| 149 | Green Technology | 2 | 208 | 577 | 114 |
| 149 | Sexual health | 3 | 208 | 748 | 380 |
| 149 | Randomized Controlled Trials | 14 | 208 | 407 | 461 |
| 153 | Reproductive health | 8 | 207 | 400 | 431 |
| 154 | Pakistan | 10 | 205 | 136 | 35 |
| 155 | Marine Pollution | 6 | 204 | 825 | 926 |
| 155 | drug therapy | 4 | 204 | 1990 | 1590 |
| 157 | Clinical Chemistry | 10 | 203 | 1667 | 2156 |
| 158 | teratogenic agents | 7 | 202 | 66 | 36 |
| 158 | wind erosion | 3 | 202 | 99 | 59 |
| 158 | carcinogens | 7 | 202 | 601 | 776 |
| 161 | Parasitic Diseases | 19 | 201 | 766 | 1420 |
| 162 | Dermatology | 16 | 200 | 748 | 1081 |
| 163 | Pharmacy | 7 | 199 | 1405 | 1416 |
| 163 | Contraception | 6 | 199 | 344 | 324 |
| 163 | Birth control | 6 | 199 | 272 | 275 |
| 166 | pollutants | 4 | 198 | 1714 | 1492 |
| 166 | Environmental pollutants | 4 | 198 | 2041 | 1713 |
| 168 | Ethnology | 7 | 196 | 948 | 614 |
| 169 | Environmental Geology | 2 | 194 | 1985 | 1183 |
| 170 | Herbal medicine | 11 | 191 | 214 | 516 |
| 171 | Human genetics | 7 | 190 | 1481 | 2893 |
| 172 | Biomedical Engineering | 17 | 188 | 2372 | 3771 |
| 173 | Women's health | 15 | 185 | 403 | 701 |
| 174 | Embryology | 4 | 183 | 1291 | 1314 |
| 174 | occupational diseases | 7 | 183 | 495 | 609 |
| 174 | Laser therapy | 17 | 183 | 100 | 141 |
| 177 | Pharmacokinetics | 9 | 181 | 460 | 625 |
| 177 | nanoscience | 2 | 181 | 3269 | 2291 |
| 179 | Gastrointestinal diseases | 10 | 179 | 281 | 360 |
| 180 | Geomorphology | 1 | 176 | 1938 | 1114 |
| 180 | Soil Science | 1 | 176 | 2746 | 1442 |
| 182 | Psychopharmacology | 6 | 174 | 1066 | 1273 |
| 183 | Emergency Medicine | 11 | 171 | 712 | 782 |
| 184 | Eating Disorders | 8 | 170 | 476 | 582 |
| 184 | Feeding and Eating Disorders | 8 | 170 | 455 | 561 |
| 186 | Surface-Active Agents | 3 | 169 | 1146 | 955 |
| 186 | Surface properties | 3 | 169 | 1225 | 1040 |
| 188 | Nanobiotechnology | 1 | 168 | 815 | 422 |
| 189 | Immunopathology | 3 | 167 | 1294 | 1031 |
| 190 | Nanoparticles | 3 | 165 | 1859 | 1466 |
| 191 | Materials | 3 | 154 | 5397 | 4249 |
| 192 | medical education | 14 | 151 | 721 | 1103 |
| 193 | Mental Health | 14 | 149 | 660 | 1068 |
| 194 | Ecological Engineering | 1 | 148 | 1150 | 634 |
| 195 | Carcinogenesis | 2 | 147 | 1236 | 952 |
| 196 | energy conservation | 11 | 146 | 975 | 2042 |
| 197 | venom | 9 | 143 | 326 | 547 |
| 198 | Computational Biology | 5 | 142 | 2423 | 2288 |
| 198 | Municipal Engineering | 4 | 142 | 267 | 203 |
| 198 | biochemical markers | 8 | 142 | 419 | 534 |
| 201 | Environmental Chemistry | 10 | 140 | 1200 | 2061 |
| 201 | Water | 6 | 140 | 1784 | 2422 |
| 201 | Risk assessment | 6 | 140 | 343 | 322 |
| 201 | ecological risk assessment | 6 | 140 | 89 | 140 |
| 201 | Health Risk Assessment | 6 | 140 | 218 | 224 |
| 206 | Clinical Pharmacology | 4 | 139 | 1285 | 1116 |
| 206 | Organometallic chemistry | 11 | 139 | 1024 | 1258 |
| 206 | Safety management | 7 | 139 | 238 | 227 |
| 209 | Industrial Microbiology | 7 | 137 | 1323 | 1920 |
| 209 | Liver diseases | 9 | 137 | 861 | 1521 |
| 211 | Nanomedicine | 1 | 136 | 486 | 205 |
| 212 | human behavior | 5 | 135 | 1834 | 2445 |
| 212 | Behavior | 4 | 135 | 2671 | 2912 |
| 214 | Respiration | 3 | 134 | 1456 | 1278 |
| 215 | Civil Engineering | 1 | 133 | 2888 | 916 |
| 216 | Hypertension | 6 | 131 | 1129 | 1718 |
| 216 | Neuropharmacology | 3 | 131 | 613 | 480 |
| 216 | Respiratory system | 2 | 131 | 734 | 521 |
| 216 | Pesticides | 5 | 131 | 466 | 409 |
| 220 | Dentistry | 13 | 130 | 276 | 365 |
| 220 | Immunochemistry | 7 | 130 | 609 | 773 |
| 222 | Primary health care | 14 | 128 | 648 | 1257 |
| 223 | Chromosomes | 5 | 127 | 775 | 947 |
| 224 | Physical Chemistry | 2 | 126 | 2661 | 1844 |
| 225 | Radiology | 6 | 124 | 1057 | 978 |
| 226 | Phytotherapy | 11 | 123 | 287 | 730 |
| 227 | Molecular cloning | 11 | 122 | 713 | 1278 |
| 227 | Bioorganic chemistry | 6 | 122 | 2151 | 2519 |
| 229 | Nursing | 16 | 121 | 681 | 1119 |
| 229 | Stem cells | 5 | 121 | 1274 | 1544 |
| 231 | air quality | 4 | 117 | 126 | 122 |
| 232 | Genomics | 12 | 116 | 1705 | 3078 |
| 233 | Psychiatric Nursing | 7 | 114 | 378 | 434 |
| 234 | Europe | 5 | 110 | 2552 | 2319 |
| 235 | Medical Laboratory Science | 1 | 108 | 3539 | 2393 |
| 235 | Food Microbiology | 1 | 108 | 1992 | 1418 |
| 235 | Foodborne diseases | 1 | 108 | 515 | 213 |
| 235 | Aging | 9 | 108 | 1716 | 2357 |
| 239 | Biocompatible Materials | 3 | 107 | 3534 | 3733 |
| 239 | Probiotics | 4 | 107 | 100 | 121 |
| 239 | Lipids | 4 | 107 | 1162 | 1421 |
| 242 | Exercise therapy | 16 | 105 | 44 | 237 |
| 242 | Immunity | 6 | 105 | 1346 | 2434 |
| 244 | Geriatrics | 15 | 104 | 1308 | 2431 |
| 245 | food technology | 3 | 103 | 2497 | 2412 |
| 246 | Antioxidants | 3 | 101 | 780 | 1031 |
| 246 | vitamin C | 3 | 101 | 405 | 509 |
| 246 | vitamin E | 3 | 101 | 405 | 509 |
| 249 | Health Policy | 12 | 100 | 1037 | 2061 |
| 250 | Biopharmaceutics | 9 | 98 | 607 | 1218 |
| 250 | Quality Control | 5 | 98 | 1440 | 1672 |
| 250 | Water Microbiology | 5 | 98 | 280 | 454 |
| 253 | Environmental Geochemistry | 9 | 97 | 142 | 434 |
| 253 | Minerals | 9 | 97 | 302 | 693 |
| 255 | Diagnostic Imaging | 5 | 96 | 1717 | 1844 |
| 256 | Environmental Microbiology | 2 | 95 | 1727 | 1725 |
| 256 | Cytokine | 3 | 95 | 396 | 570 |
| 258 | Mathematics | 3 | 94 | 5428 | 3843 |
| 258 | biomedicine | 3 | 94 | 996 | 896 |
| 260 | Digestive system diseases | 3 | 93 | 926 | 925 |
| 261 | Growth factors | 2 | 92 | 362 | 502 |
| 261 | proteins | 6 | 92 | 1601 | 2036 |
| 263 | Developing countries | 8 | 91 | 1342 | 2117 |
| 264 | Ophthalmology | 7 | 90 | 1208 | 1710 |
| 265 | Genetic Toxicology | 2 | 88 | 617 | 649 |
| 265 | Microbial Ecology | 1 | 88 | 3305 | 2827 |
| 265 | Archaea | 1 | 88 | 80 | 56 |
| 268 | Clinical Laboratory Science | 2 | 87 | 346 | 161 |
| 268 | Health | 11 | 87 | 1068 | 2065 |
| 268 | Infertility | 1 | 87 | 1311 | 1134 |
| 268 | fertility | 1 | 87 | 1406 | 1193 |
| 272 | Chemotherapy | 1 | 86 | 2192 | 1502 |
| 272 | Sports | 7 | 86 | 1311 | 1554 |
| 272 | Exercise | 6 | 86 | 945 | 1110 |
| 275 | Technology | 5 | 85 | 3429 | 3776 |
| 275 | Zeolites | 1 | 85 | 1450 | 1145 |
| 277 | Holistic Health | 4 | 84 | 369 | 359 |
| 278 | Global Health | 9 | 83 | 515 | 913 |
| 278 | Microcirculation | 3 | 83 | 460 | 485 |
| 280 | Bioinformatics | 1 | 81 | 3315 | 2217 |
| 280 | Aquaculture | 3 | 81 | 1401 | 1340 |
| 282 | drug evaluation | 5 | 80 | 1092 | 1409 |
| 283 | Emergency Medical Services | 3 | 77 | 790 | 691 |
| 284 | Organometallic compounds | 6 | 76 | 916 | 1194 |
| 284 | Liposomes | 4 | 76 | 441 | 600 |
| 284 | Middle East | 6 | 76 | 669 | 668 |
| 284 | health services | 6 | 76 | 695 | 1047 |
| 284 | diseases | 6 | 76 | 165 | 780 |
| 289 | Ergonomics | 3 | 75 | 986 | 899 |
| 290 | environmental indicators | 2 | 74 | 1366 | 1493 |
| 291 | Botany | 2 | 73 | 4085 | 3898 |
| 291 | Radioisotopes | 9 | 73 | 637 | 967 |
| 291 | Plants | 2 | 73 | 2451 | 2243 |
| 294 | Oral Medicine | 14 | 71 | 191 | 533 |
| 294 | Mental illness | 6 | 71 | 1424 | 2425 |
| 296 | Genetic engineering | 9 | 70 | 1291 | 2625 |
| 296 | Fishery management | 2 | 70 | 1024 | 829 |
| 296 | Genetic recombination | 9 | 70 | 818 | 1642 |
| 296 | Biomarkers | 4 | 70 | 323 | 429 |
| 296 | Recombinant DNA | 9 | 70 | 896 | 1732 |
| 296 | Cell metabolism | 3 | 70 | 683 | 1243 |
| 302 | Diagnosis | 2 | 69 | 884 | 658 |
| 302 | Quality of life | 2 | 69 | 1858 | 1854 |
| 302 | disease susceptibility | 2 | 69 | 517 | 437 |
| 302 | symptoms | 2 | 69 | 517 | 437 |
| 306 | Anatomy | 4 | 68 | 1680 | 1990 |
| 306 | Radiobiology | 4 | 68 | 1201 | 1597 |
| 306 | Porous materials | 1 | 68 | 1296 | 676 |
| 309 | Sports Medicine | 8 | 66 | 1521 | 2202 |
| 310 | Solid State Chemistry | 2 | 65 | 2657 | 2318 |
| 310 | Bioinorganic chemistry | 2 | 65 | 1655 | 1535 |
| 310 | Entomology | 4 | 65 | 2099 | 2029 |
| 313 | Industry | 1 | 64 | 457 | 502 |
| 314 | Evolutionary Genetics | 4 | 63 | 568 | 873 |
| 314 | Molecular Epidemiology | 4 | 63 | 568 | 873 |
| 314 | Artificial Organs | 3 | 63 | 657 | 613 |
| 314 | dietary supplements | 4 | 63 | 679 | 1099 |
| 314 | Drug delivery devices | 2 | 63 | 326 | 478 |
| 314 | Hormones | 6 | 63 | 922 | 1599 |
| 314 | natural products | 2 | 63 | 2183 | 1818 |
| 321 | Physical fitness | 3 | 62 | 1070 | 1202 |
| 322 | Biochemical Genetics | 5 | 61 | 267 | 294 |
| 322 | Animal breeding | 1 | 61 | 1219 | 833 |
| 322 | Biomechanics | 5 | 61 | 1118 | 1590 |
| 322 | Marriage | 4 | 61 | 398 | 523 |
| 322 | paraphilias | 4 | 61 | 117 | 231 |
| 322 | psychotherapy | 4 | 61 | 1115 | 1393 |
| 322 | Decision making | 5 | 61 | 1141 | 1635 |
| 322 | Marriage counseling | 4 | 61 | 235 | 369 |
| 322 | pharmaceutical industry | 4 | 61 | 495 | 626 |
| 322 | Breeding | 1 | 61 | 1852 | 1412 |
| 332 | Neonatology | 3 | 60 | 603 | 727 |
| 332 | Therapeutics | 4 | 60 | 1494 | 2333 |
| 334 | Nuclear Medicine | 4 | 57 | 897 | 1141 |
| 334 | Asia | 2 | 57 | 3614 | 2601 |
| 334 | Bones | 1 | 57 | 1218 | 1185 |
| 334 | Bone marrow | 1 | 57 | 17 | 9 |
| 338 | Infections | 4 | 56 | 997 | 1718 |
| 339 | Learning | 4 | 55 | 1103 | 1508 |
| 340 | Integrative Medicine | 4 | 54 | 202 | 215 |
| 341 | Systems Engineering | 2 | 53 | 2720 | 2312 |
| 341 | Dietetics | 3 | 53 | 598 | 672 |
| 341 | Medicinal plants | 1 | 53 | 2361 | 2060 |
| 341 | breastfeeding | 2 | 53 | 639 | 637 |
| 345 | Neurobiology | 4 | 52 | 1461 | 2316 |
| 345 | Health Services Research | 9 | 52 | 891 | 2070 |
| 345 | software | 1 | 52 | 1763 | 1519 |
| 345 | cloning | 2 | 52 | 829 | 1165 |
| 349 | Cognitive Science | 1 | 51 | 2328 | 1907 |
| 349 | Evidence-Based Medicine | 4 | 51 | 1142 | 1629 |
| 349 | Cognition | 1 | 51 | 2339 | 1870 |
| 352 | Medical Technology | 7 | 50 | 1128 | 2430 |
| 353 | Neurotoxicology | 2 | 49 | 722 | 935 |
| 353 | Apoptosis | 2 | 49 | 342 | 474 |
| 353 | neurotoxins | 2 | 49 | 342 | 474 |
| 353 | Neurotoxic agents | 2 | 49 | 342 | 474 |
| 353 | Geriatric Oncology | 1 | 49 | 975 | 914 |
| 353 | Nerve regeneration | 2 | 49 | 342 | 474 |
| 359 | Industrial Engineering | 1 | 48 | 3011 | 2258 |
| 359 | mutation | 2 | 48 | 780 | 993 |
| 359 | Composite Materials | 1 | 48 | 3546 | 3287 |
| 359 | Speech Disorders | 5 | 48 | 741 | 1103 |
| 363 | Histochemistry | 4 | 47 | 938 | 1318 |
| 363 | Kidney diseases | 4 | 47 | 827 | 1259 |
| 365 | Pediatric Neurology | 2 | 46 | 1144 | 1702 |
| 365 | Analytical Biochemistry | 4 | 46 | 1617 | 2252 |
| 365 | Infection control | 1 | 46 | 1169 | 980 |
| 365 | Research Design | 2 | 46 | 1460 | 1625 |
| 365 | Neuroanatomy | 3 | 46 | 210 | 377 |
| 365 | Blood vessels | 1 | 46 | 680 | 556 |
| 371 | Developmental Biology | 2 | 45 | 2300 | 2820 |
| 371 | peptides | 3 | 45 | 972 | 1091 |
| 371 | Detectors | 2 | 45 | 2035 | 2000 |
| 371 | Molecular structure | 5 | 45 | 2002 | 2816 |
| 375 | Nutrition physiology | 5 | 44 | 555 | 1135 |
| 375 | drug development | 3 | 44 | 1078 | 2033 |
| 377 | pain | 4 | 43 | 1159 | 1859 |
| 377 | Immune system | 1 | 43 | 1683 | 1692 |
| 377 | Vaccines | 3 | 43 | 1936 | 2632 |
| 380 | Pediatric Hematology | 4 | 42 | 338 | 354 |
| 380 | Radiation | 6 | 42 | 1574 | 2465 |
| 382 | Neurosurgery | 4 | 41 | 829 | 1413 |
| 382 | Image Processing | 3 | 41 | 2238 | 2778 |
| 382 | Hemodynamics | 1 | 41 | 923 | 1055 |
| 382 | Ecohydrology | 2 | 41 | 494 | 535 |
| 382 | Imaging systems | 3 | 41 | 871 | 826 |
| 382 | freshwater biology | 2 | 41 | 1173 | 1282 |
| 388 | Lymphoma | 1 | 40 | 683 | 416 |
| 388 | Multiple Myeloma | 1 | 40 | 674 | 397 |
| 388 | Leukemia | 1 | 40 | 1531 | 1544 |
| 388 | primary prevention | 2 | 40 | 504 | 673 |
| 392 | Emergency Nursing | 1 | 39 | 288 | 189 |
| 392 | Critical Care | 3 | 39 | 1573 | 2488 |
| 392 | emergency management | 3 | 39 | 869 | 1259 |
| 392 | Teaching | 1 | 39 | 2723 | 1810 |
| 392 | Australia | 1 | 39 | 3173 | 2275 |
| 397 | infection | 2 | 38 | 2033 | 2473 |
| 397 | Communication | 2 | 38 | 2528 | 2477 |
| 397 | biological factors | 3 | 38 | 2018 | 2685 |
| 397 | United States | 7 | 38 | 3658 | 6301 |
| 397 | sexual behavior | 3 | 38 | 645 | 965 |
| 402 | Clinical Immunology | 3 | 37 | 1262 | 1921 |
| 402 | Bacterial infections | 3 | 37 | 833 | 1633 |
| 402 | Africa | 3 | 37 | 1739 | 1710 |
| 405 | Spectrum analysis | 5 | 36 | 3323 | 4744 |
| 405 | Iran | 13 | 36 | 43 | 121 |
| 407 | Pediatric Endocrinology | 5 | 35 | 212 | 361 |
| 407 | Public Policy | 3 | 35 | 1754 | 2618 |
| 407 | Sleep Disorders | 5 | 35 | 1269 | 2125 |
| 407 | ovary | 2 | 35 | 276 | 402 |
| 407 | Metabolic disorders in children | 5 | 35 | 176 | 304 |
| 407 | Sleep | 5 | 35 | 1267 | 2149 |
| 413 | Psychosomatic Medicine | 3 | 34 | 729 | 1333 |
| 413 | water supply | 3 | 34 | 929 | 1507 |
| 415 | sanitation | 2 | 33 | 1844 | 2736 |
| 415 | older people | 9 | 33 | 882 | 1782 |
| 415 | Insects | 3 | 33 | 1513 | 1754 |
| 418 | Biomass Energy | 3 | 32 | 2490 | 3576 |
| 418 | Tissue Engineering | 1 | 32 | 612 | 564 |
| 418 | Regenerative Medicine | 1 | 32 | 307 | 232 |
| 418 | Oral Pathology | 1 | 32 | 201 | 183 |
| 422 | Educational Technology | 4 | 31 | 1351 | 2187 |
| 422 | Functional foods | 1 | 31 | 796 | 746 |
| 422 | Steroids | 2 | 31 | 1193 | 1581 |
| 422 | Allergy | 4 | 31 | 1006 | 1999 |
| 426 | Schizophrenia | 1 | 30 | 1503 | 1616 |
| 426 | Healing | 1 | 30 | 263 | 199 |
| 426 | Microbial Metabolism | 1 | 30 | 420 | 590 |
| 426 | cell adhesion molecules | 1 | 30 | 1002 | 1145 |
| 426 | Cell survival | 1 | 30 | 467 | 526 |
| 426 | Arthropods | 2 | 30 | 330 | 388 |
| 426 | Microorganisms | 1 | 30 | 1691 | 1943 |
| 426 | Longevity | 2 | 30 | 236 | 426 |
| 426 | rejuvenation | 2 | 30 | 168 | 366 |
| 426 | molecular chaperones | 1 | 30 | 516 | 528 |
| 436 | Japan | 1 | 29 | 3272 | 2607 |
| 436 | immunoassay | 3 | 29 | 187 | 288 |
| 438 | Urology | 2 | 28 | 1940 | 2470 |
| 438 | Agricultural Chemistry | 1 | 28 | 3397 | 3380 |
| 440 | Information Technology | 3 | 27 | 2751 | 3310 |
| 440 | Autoantibodies | 1 | 27 | 944 | 1140 |
| 440 | Autoimmunity | 1 | 27 | 1154 | 1446 |
| 440 | Autoimmune diseases | 1 | 27 | 1066 | 1269 |
| 444 | Marine Biotechnology | 1 | 26 | 443 | 578 |
| 445 | Pathogens | 2 | 25 | 139 | 288 |
| 446 | Clinical Biochemistry | 3 | 24 | 1248 | 2051 |
| 446 | Immunotoxicology | 2 | 24 | 427 | 635 |
| 446 | mutagens | 1 | 24 | 1336 | 1664 |
| 446 | Hepatitis | 1 | 24 | 15 | 19 |
| 450 | Sustainable Engineering | 2 | 23 | 1966 | 2660 |
| 450 | Radiopharmaceuticals | 2 | 23 | 484 | 439 |
| 450 | Behavioral research | 2 | 23 | 646 | 865 |
| 450 | Second Language Acquisition | 2 | 23 | 234 | 441 |
| 450 | Chromosome mapping | 3 | 23 | 1872 | 3347 |
| 450 | X-rays | 1 | 23 | 1117 | 917 |
| 450 | Social work | 1 | 23 | 2346 | 1914 |
| 450 | amino acids | 1 | 23 | 1080 | 1235 |
| 450 | Chemical reactors | 1 | 23 | 158 | 65 |
| 450 | gene mapping | 3 | 23 | 2059 | 3633 |
| 460 | Artificial Intelligence | 2 | 22 | 4257 | 4972 |
| 460 | Stochastic Processes | 1 | 22 | 1501 | 1318 |
| 460 | behavioral medicine | 1 | 22 | 2137 | 2604 |
| 460 | stem cell transplantation | 1 | 22 | 106 | 80 |
| 460 | Lipid metabolism | 1 | 22 | 746 | 1000 |
| 460 | pain management | 2 | 22 | 802 | 1103 |
| 460 | Molecular Spectroscopy | 3 | 22 | 1772 | 2706 |
| 460 | sleep-wake cycle | 4 | 22 | 68 | 198 |
| 460 | Lipid | 1 | 22 | 748 | 1001 |
| 469 | Palliative Care | 2 | 21 | 1067 | 1410 |
| 469 | Hypertension in pregnancy | 1 | 21 | 351 | 325 |
| 469 | Malaria | 3 | 21 | 754 | 1406 |
| 469 | insect vectors | 3 | 21 | 25 | 41 |
| 469 | India | 3 | 21 | 1655 | 1850 |
| 474 | Fluid Mechanics | 1 | 20 | 2515 | 2441 |
| 474 | Hydraulic Engineering | 1 | 20 | 1752 | 1679 |
| 474 | Probability | 1 | 20 | 1003 | 1038 |
| 474 | Risk Management | 1 | 20 | 1341 | 1365 |
| 474 | River Engineering | 1 | 20 | 157 | 119 |
| 474 | Religion and Psychology | 2 | 20 | 677 | 873 |
| 474 | Financial management | 1 | 20 | 860 | 1078 |
| 474 | Risk | 1 | 20 | 959 | 1069 |
| 474 | plant oils | 2 | 20 | 317 | 513 |
| 474 | eugenics | 2 | 20 | 695 | 1157 |
| 484 | Audiology | 8 | 19 | 450 | 1195 |
| 484 | Pharmacognosy | 1 | 19 | 2831 | 3334 |
| 484 | Organic Chemistry | 2 | 19 | 3517 | 4272 |
| 484 | Molecular Genetics | 3 | 19 | 1800 | 3309 |
| 484 | aromatic plants | 1 | 19 | 466 | 378 |
| 484 | scientific societies | 3 | 19 | 772 | 1476 |
| 490 | Psycholinguistics | 2 | 18 | 1097 | 1494 |
| 490 | Library Science | 2 | 18 | 1575 | 1419 |
| 490 | Earth Sciences | 4 | 18 | 2856 | 4499 |
| 493 | Polymers | 2 | 17 | 4725 | 5756 |
| 493 | disease vectors | 2 | 17 | 1233 | 2007 |
| 493 | hygiene | 2 | 17 | 697 | 1165 |
| 496 | Computer Science | 1 | 16 | 3507 | 3245 |
| 496 | Radiochemistry | 5 | 16 | 830 | 1509 |
| 496 | Measurement | 1 | 16 | 2174 | 2363 |
| 496 | motivation | 3 | 16 | 316 | 715 |
| 496 | Post-traumatic stress disorder | 2 | 16 | 932 | 1487 |
| 501 | Cytogenetics | 2 | 15 | 1830 | 2932 |
| 501 | Immunogenetics | 1 | 15 | 1158 | 1403 |
| 501 | Electrophysiology | 1 | 15 | 1670 | 1798 |
| 501 | Antigens | 1 | 15 | 1406 | 1672 |
| 501 | animal diseases | 1 | 15 | 888 | 1146 |
| 501 | Germany | 2 | 15 | 862 | 822 |
| 501 | Electromagnetic fields | 1 | 15 | 688 | 511 |
| 501 | United Kingdom | 2 | 15 | 1899 | 2782 |
| 509 | Nuclear Chemistry | 4 | 14 | 987 | 1673 |
| 509 | Medical Ethics | 4 | 14 | 958 | 1958 |
| 509 | Genetic testing | 2 | 14 | 479 | 800 |
| 509 | Communication Disorders | 6 | 14 | 185 | 566 |
| 513 | Morphology | 1 | 13 | 1358 | 1331 |
| 513 | adolescence | 5 | 13 | 664 | 1726 |
| 513 | gene therapy | 3 | 13 | 1123 | 2404 |
| 513 | Mechanics | 2 | 13 | 1690 | 2018 |
| 513 | Genetic therapy | 3 | 13 | 1202 | 2499 |
| 513 | polymerization | 1 | 13 | 4782 | 5118 |
| 513 | health planning | 2 | 13 | 2650 | 3813 |
| 513 | gene transfer | 3 | 13 | 250 | 731 |
| 513 | Biodiversity | 4 | 13 | 2058 | 3933 |
| 513 | genetic transformation | 3 | 13 | 250 | 731 |
| 523 | Asthma | 2 | 12 | 883 | 1472 |
| 523 | Adolescent Medicine | 4 | 12 | 453 | 1412 |
| 523 | Systems Analysis | 2 | 12 | 1378 | 2180 |
| 523 | Food Preservation | 2 | 12 | 970 | 1460 |
| 523 | Health Education | 2 | 12 | 2286 | 3585 |
| 523 | epilepsy | 1 | 12 | 1499 | 1948 |
| 523 | Computational Intelligence | 1 | 12 | 1933 | 2052 |
| 523 | Substance Abuse | 7 | 12 | 890 | 2580 |
| 523 | Respiratory Infections | 1 | 12 | 678 | 893 |
| 523 | System analysis | 2 | 12 | 2962 | 4094 |
| 523 | Health promotion | 2 | 12 | 1762 | 2924 |
| 523 | Information Science | 2 | 12 | 2994 | 4278 |
| 523 | Allergies | 1 | 12 | 310 | 461 |
| 536 | Respiratory Therapy | 1 | 11 | 115 | 163 |
| 536 | Radiation Protection | 2 | 11 | 892 | 1088 |
| 536 | urban health | 1 | 11 | 490 | 777 |
| 536 | patents | 1 | 11 | 359 | 509 |
| 536 | data collection | 2 | 11 | 1382 | 2618 |
| 536 | gases | 1 | 11 | 115 | 163 |
| 536 | Cell surface receptors | 1 | 11 | 293 | 454 |
| 543 | Language Disorders | 2 | 10 | 958 | 1487 |
| 543 | Ceramics | 1 | 10 | 2355 | 2541 |
| 543 | Medical Physics | 2 | 10 | 2059 | 3021 |
| 543 | Electrophoresis | 1 | 10 | 2529 | 3262 |
| 543 | Chromatography | 1 | 10 | 2595 | 3195 |
| 543 | Brachytherapy | 3 | 10 | 210 | 459 |
| 543 | Trademarks | 1 | 10 | 278 | 387 |
| 543 | water reuse | 1 | 10 | 566 | 939 |
| 543 | biological agents | 1 | 10 | 1234 | 971 |
| 543 | Chromatographic analysis | 1 | 10 | 2947 | 3477 |
| 543 | Fuzzy systems | 1 | 10 | 2563 | 2736 |
| 554 | Voice Disorders | 1 | 9 | 131 | 217 |
| 554 | Forensic Psychology | 1 | 9 | 659 | 800 |
| 554 | occupational health and safety | 1 | 9 | 392 | 509 |
| 554 | toxicity testing | 1 | 9 | 1359 | 1980 |
| 554 | drinking water | 1 | 9 | 302 | 441 |
| 559 | Chronobiology | 1 | 8 | 937 | 1229 |
| 559 | Higher Education | 1 | 8 | 1052 | 1216 |
| 559 | Neurovirology | 1 | 8 | 459 | 729 |
| 559 | Veterinary Immunology | 1 | 8 | 625 | 955 |
| 559 | Health Physics | 1 | 8 | 389 | 459 |
| 559 | Microbial Biotechnology | 2 | 8 | 1304 | 2418 |
| 559 | Circadian rhythms | 1 | 8 | 698 | 1060 |
| 559 | biological clocks | 1 | 8 | 937 | 1229 |
| 559 | Medical innovations | 1 | 8 | 1731 | 2789 |
| 559 | circadian rhythm | 1 | 8 | 937 | 1229 |
| 559 | biological rhythms | 1 | 8 | 888 | 1190 |
| 559 | bees | 1 | 8 | 673 | 907 |
| 571 | Palynology | 2 | 7 | 352 | 659 |
| 571 | health services accessibility | 1 | 7 | 1590 | 2327 |
| 571 | Socioeconomic Factors | 1 | 7 | 1416 | 2280 |
| 571 | Developmental Neurobiology | 2 | 7 | 695 | 1275 |
| 571 | food contamination | 1 | 7 | 1833 | 2400 |
| 571 | Mental Health Services | 1 | 7 | 2073 | 2757 |
| 571 | Nanostructures | 3 | 7 | 2283 | 4096 |
| 571 | International Education | 1 | 7 | 473 | 705 |
| 571 | risk factors | 1 | 7 | 1190 | 1599 |
| 571 | nucleic acids | 3 | 7 | 1739 | 3432 |
| 571 | nucleotides | 3 | 7 | 357 | 743 |
| 571 | scholarly publishing | 1 | 7 | 318 | 430 |
| 571 | Computer Literacy | 1 | 7 | 465 | 732 |
| 571 | women | 2 | 7 | 1050 | 1631 |
| 571 | alcohol | 1 | 7 | 193 | 253 |
| 571 | Bereavement | 1 | 7 | 393 | 527 |
| 587 | Social Sciences | 2 | 6 | 4433 | 5988 |
| 587 | Humanities | 1 | 6 | 3256 | 3360 |
| 587 | Sociology | 2 | 6 | 3666 | 5727 |
| 587 | Geophysics | 2 | 6 | 3884 | 5702 |
| 587 | Thrombosis | 1 | 6 | 1559 | 2257 |
| 587 | Helminthology | 1 | 6 | 322 | 440 |
| 587 | nuclear magnetic resonance | 1 | 6 | 1524 | 1878 |
| 587 | Reproductive toxicology | 1 | 6 | 788 | 1314 |
| 587 | Magnetic Resonance Spectroscopy | 1 | 6 | 1719 | 2140 |
| 587 | Child psychology | 1 | 6 | 2180 | 2944 |
| 587 | Echocardiography | 1 | 6 | 211 | 418 |
| 587 | protein | 2 | 6 | 1490 | 2577 |
| 587 | movement | 1 | 6 | 608 | 936 |
| 587 | geological modeling | 1 | 6 | 873 | 1254 |
| 587 | Helminths | 1 | 6 | 322 | 440 |
| 587 | Human biology | 1 | 6 | 1111 | 1554 |
| 587 | Egypt | 2 | 6 | 663 | 1687 |
| 604 | Zoology | 1 | 5 | 3658 | 4469 |
| 604 | Geology | 1 | 5 | 4036 | 4928 |
| 604 | Clinical Trials | 1 | 5 | 1056 | 1647 |
| 604 | Magnetic Resonance Imaging | 1 | 5 | 889 | 1290 |
| 608 | Health Services Administration | 1 | 4 | 1965 | 2967 |
| 608 | Demography | 1 | 4 | 1196 | 1707 |
| 608 | Bioethics | 1 | 4 | 1509 | 2059 |
| 608 | Watershed management | 1 | 4 | 494 | 882 |
| 608 | nursing ethics | 1 | 4 | 471 | 850 |
| 608 | Plastics | 1 | 4 | 2615 | 3375 |
| 608 | Chemical processes | 1 | 4 | 1131 | 1680 |
| 608 | management | 1 | 4 | 4827 | 6074 |
| 608 | Hearing | 2 | 4 | 780 | 1485 |
| 608 | Water chemistry | 1 | 4 | 736 | 1249 |
| 608 | alcoholism | 2 | 4 | 1676 | 3187 |
| 608 | Population | 1 | 4 | 1722 | 2451 |
| 608 | healthcare industry | 1 | 4 | 93 | 261 |
| 608 | genome | 1 | 4 | 2506 | 3617 |
| 608 | planning | 1 | 4 | 1304 | 1975 |
| 608 | educational innovations | 1 | 4 | 930 | 1317 |
| 608 | language | 1 | 4 | 1335 | 1749 |
| 625 | Statistics | 1 | 3 | 3669 | 4445 |
| 625 | Neurogenetics | 1 | 3 | 583 | 945 |
| 625 | Special Education | 1 | 3 | 1257 | 1657 |
| 625 | Social Psychology | 1 | 3 | 3103 | 4304 |
| 625 | Erectile dysfunction | 1 | 3 | 485 | 790 |
| 625 | Tourism | 1 | 3 | 2407 | 3220 |
| 625 | Bioavailability | 1 | 3 | 195 | 444 |
| 625 | Nanostructured Materials | 1 | 3 | 4038 | 5266 |
| 625 | Neurotransmitters | 3 | 3 | 475 | 986 |
| 625 | Gene expression regulation | 1 | 3 | 1657 | 2523 |
| 625 | Interferons | 1 | 3 | 559 | 993 |
| 625 | Genetic regulation | 1 | 3 | 1840 | 2720 |
| 625 | Genetic markers | 2 | 3 | 374 | 1106 |
| 625 | Southeast Asia | 1 | 3 | 816 | 1094 |
| 625 | Microscopy | 1 | 3 | 2606 | 3373 |
| 625 | phototherapy | 1 | 3 | 453 | 680 |
| 641 | Cochlear Implants | 1 | 2 | 183 | 328 |
| 641 | Bioenergetics | 1 | 2 | 1316 | 2067 |
| 641 | Systems Biology | 1 | 2 | 2593 | 4095 |
| 641 | hospice care | 1 | 2 | 976 | 1720 |
| 641 | Energy metabolism | 1 | 2 | 896 | 1376 |
| 641 | Quality Assurance | 1 | 2 | 735 | 1407 |
| 641 | Child welfare | 3 | 2 | 1058 | 2884 |
| 641 | Noise control | 1 | 2 | 602 | 357 |
| 641 | Emulsions | 1 | 2 | 740 | 1245 |
| 641 | ethanol | 1 | 2 | 867 | 1389 |
| 641 | drug addiction | 1 | 2 | 1672 | 2646 |
| 641 | Membranes | 1 | 2 | 2442 | 3445 |
| 641 | traffic safety | 1 | 2 | 561 | 1035 |
| 654 | Linguistics | 1 | 1 | 2330 | 2918 |
| 654 | Astrophysics | 1 | 1 | 3613 | 4678 |
| 654 | Geochemistry | 1 | 1 | 2738 | 3937 |
| 654 | Geodesy | 1 | 1 | 1342 | 2118 |
| 654 | monoclonal antibodies | 1 | 1 | 648 | 1113 |
| 654 | Molecular evolution | 1 | 1 | 2395 | 3682 |
| 654 | Child Development | 1 | 1 | 2855 | 4276 |
| 654 | hazard mitigation | 1 | 1 | 1681 | 2665 |
| 654 | Child health | 2 | 1 | 12 | 69 |
| 654 | Oral communication | 1 | 1 | 727 | 1279 |
| 654 | Speech | 1 | 1 | 1365 | 2123 |
| 654 | natural disasters | 1 | 1 | 2107 | 3199 |
| 654 | sports injuries | 1 | 1 | 987 | 1603 |
| 667 | Neonatal Nursing | 1 | 0 | 251 | 566 |
| 667 | Neonatal intensive care | 1 | 0 | 207 | 481 |
| 667 | Bioremediation | 1 | 0 | 1542 | 2517 |
| 667 | Folklore | 1 | 0 | 281 | 318 |
| 667 | environmental remediation | 1 | 0 | 784 | 1463 |
| 667 | Crystallography | 1 | 0 | 2423 | 3169 |
| 667 | Gerontology | 2 | 0 | 2386 | 4459 |
| 667 | Elderly | 2 | 0 | 1504 | 2639 |
| 667 | Dementia | 1 | 0 | 2232 | 2764 |
| 667 | Alzheimer's disease | 1 | 0 | 2308 | 2892 |
| 667 | drug abuse | 1 | 0 | 1111 | 1947 |
| 667 | violence | 1 | 0 | 1478 | 2516 |
| 667 | harm reduction | 1 | 0 | 390 | 753 |
