| 1 | Biology | 276 | 44.3K | 1159 | 653 |
| 2 | Hematology | 910 | 42.5K | 104 | 74 |
| 3 | Science | 222 | 39.3K | 1432 | 746 |
| 4 | Physics | 163 | 36.5K | 1945 | 873 |
| 5 | Cancer | 540 | 36.0K | 128 | 101 |
| 6 | Medicine | 266 | 35.7K | 1304 | 517 |
| 7 | Natural history | 43 | 26.0K | 1183 | 574 |
| 8 | Immunology | 190 | 25.1K | 509 | 240 |
| 9 | Molecular Biology | 232 | 24.8K | 1115 | 622 |
| 10 | Oncology | 193 | 21.8K | 106 | 66 |
| 11 | Cytology | 125 | 17.6K | 765 | 483 |
| 12 | Cell Biology | 97 | 15.5K | 832 | 515 |
| 13 | Immunity | 68 | 13.7K | 377 | 216 |
| 14 | Medical Oncology | 436 | 13.6K | 73 | 73 |
| 15 | Research | 177 | 13.1K | 1366 | 710 |
| 16 | Radiobiology | 432 | 12.7K | 60 | 58 |
| 17 | Chemistry | 144 | 11.9K | 2055 | 1345 |
| 18 | Human genetics | 68 | 11.0K | 516 | 607 |
| 19 | Virology | 27 | 9.6K | 1361 | 564 |
| 20 | Biochemistry | 184 | 9.1K | 1727 | 1408 |
| 21 | Immune system | 34 | 9.0K | 236 | 137 |
| 22 | Pharmacology | 36 | 7.9K | 2170 | 609 |
| 23 | Pharmaceutical Chemistry | 35 | 7.3K | 1454 | 355 |
| 24 | Oncogenes | 81 | 6.7K | 122 | 124 |
| 25 | Medical genetics | 133 | 6.5K | 437 | 517 |
| 26 | Genetics | 87 | 5.4K | 769 | 787 |
| 27 | Microbiology | 53 | 5.3K | 2217 | 1410 |
| 28 | Immunotherapy | 58 | 5.2K | 276 | 210 |
| 29 | Diagnostic Imaging | 112 | 5.0K | 144 | 120 |
| 30 | Cell differentiation | 87 | 5.0K | 245 | 353 |
| 31 | Allergy | 38 | 4.7K | 325 | 260 |
| 32 | Leukemia | 146 | 4.7K | 64 | 166 |
| 33 | Pathology | 68 | 4.3K | 506 | 376 |
| 34 | Nuclear Medicine | 74 | 4.0K | 138 | 84 |
| 35 | Biophysics | 178 | 3.8K | 863 | 1138 |
| 36 | Molecular Imaging | 56 | 3.5K | 93 | 73 |
| 36 | Europe | 56 | 3.5K | 728 | 259 |
| 38 | drug development | 22 | 2.8K | 264 | 191 |
| 39 | nucleic acids | 23 | 2.7K | 735 | 574 |
| 40 | Therapeutics | 42 | 2.7K | 441 | 315 |
| 41 | Medical innovations | 8 | 2.7K | 707 | 220 |
| 42 | Developmental Biology | 50 | 2.7K | 538 | 591 |
| 43 | Cell death | 57 | 2.7K | 154 | 291 |
| 44 | Stem cells | 54 | 2.4K | 295 | 288 |
| 45 | Genomics | 52 | 2.3K | 779 | 684 |
| 46 | Genetic therapy | 41 | 2.1K | 244 | 210 |
| 47 | Psychology | 61 | 1.8K | 1174 | 1225 |
| 48 | Medical Physics | 97 | 1.8K | 233 | 362 |
| 49 | Radiology | 61 | 1.7K | 224 | 159 |
| 50 | Pharmacogenetics | 34 | 1.6K | 200 | 187 |
| 51 | infection | 12 | 1.6K | 1019 | 409 |
| 52 | Parasitic Diseases | 11 | 1.6K | 1376 | 451 |
| 53 | Surgery | 39 | 1.6K | 671 | 937 |
| 54 | Medical Microbiology | 11 | 1.6K | 1642 | 871 |
| 55 | Infections | 10 | 1.6K | 765 | 324 |
| 56 | diseases | 3 | 1.5K | 392 | 322 |
| 56 | Disease | 3 | 1.5K | 408 | 314 |
| 58 | Computational Biology | 18 | 1.5K | 1344 | 827 |
| 59 | Palliative Care | 39 | 1.4K | 132 | 89 |
| 60 | Genetic regulation | 21 | 1.4K | 408 | 398 |
| 61 | drug therapy | 27 | 1.4K | 986 | 681 |
| 62 | Histology | 28 | 1.3K | 616 | 481 |
| 63 | Genetic engineering | 27 | 1.3K | 694 | 652 |
| 64 | Transplantation | 12 | 1.3K | 800 | 476 |
| 65 | Metastasis | 7 | 1.3K | 76 | 33 |
| 66 | Metabolism | 26 | 1.2K | 1319 | 1328 |
| 67 | gene therapy | 13 | 1.2K | 601 | 316 |
| 68 | cell physiology | 12 | 1.2K | 922 | 625 |
| 69 | gene mapping | 17 | 1.1K | 971 | 772 |
| 70 | genome | 20 | 1.1K | 641 | 809 |
| 71 | cloning | 16 | 1.1K | 214 | 251 |
| 72 | Growth factors | 18 | 1.1K | 28 | 62 |
| 73 | Urology | 71 | 1.0K | 394 | 727 |
| 74 | Nutrition | 34 | 982 | 1605 | 1801 |
| 75 | Endocrinology | 25 | 972 | 1469 | 1621 |
| 76 | Chromosome mapping | 13 | 960 | 1024 | 713 |
| 77 | Bioinformatics | 12 | 908 | 1241 | 870 |
| 78 | Physiology | 24 | 891 | 2034 | 1981 |
| 79 | Public Health | 33 | 856 | 2200 | 2526 |
| 79 | drugs | 16 | 856 | 1099 | 666 |
| 81 | Chemotherapy | 15 | 832 | 784 | 455 |
| 82 | Immunochemistry | 4 | 824 | 1144 | 202 |
| 83 | Carcinogenesis | 14 | 823 | 445 | 358 |
| 84 | adolescence | 1 | 821 | 1815 | 299 |
| 84 | Adolescent Psychology | 1 | 821 | 1737 | 249 |
| 84 | Adolescent | 1 | 821 | 4460 | 639 |
| 84 | Youth | 1 | 821 | 1316 | 185 |
| 88 | Bone diseases | 1 | 812 | 1110 | 225 |
| 89 | Melanoma | 10 | 804 | 56 | 38 |
| 90 | Embryology | 24 | 783 | 651 | 892 |
| 91 | Biotechnology | 18 | 781 | 3442 | 3352 |
| 92 | Metabolic diseases | 16 | 780 | 1437 | 1508 |
| 93 | Cytogenetics | 13 | 773 | 917 | 934 |
| 94 | Geriatric Oncology | 19 | 770 | 159 | 129 |
| 95 | Signal Transduction | 9 | 767 | 951 | 694 |
| 96 | Epidemiology | 27 | 742 | 1590 | 1711 |
| 97 | Radiation Oncology | 26 | 727 | 42 | 56 |
| 98 | Host-parasite interactions | 7 | 713 | 1024 | 887 |
| 98 | Virulence | 7 | 713 | 953 | 808 |
| 100 | Nanotechnology | 11 | 689 | 3452 | 2726 |
| 101 | Familial diseases | 26 | 673 | 20 | 23 |
| 102 | Anatomy | 19 | 671 | 934 | 933 |
| 103 | Clinical Chemistry | 24 | 666 | 1291 | 1534 |
| 104 | Plant cells | 1 | 664 | 1930 | 915 |
| 105 | Lymphoma | 97 | 658 | 37 | 32 |
| 106 | Flow cytometry | 15 | 647 | 101 | 71 |
| 107 | Growth | 16 | 629 | 627 | 841 |
| 108 | Recombinant DNA | 15 | 622 | 713 | 553 |
| 109 | Antigens | 15 | 616 | 424 | 355 |
| 110 | Gene expression regulation | 10 | 610 | 598 | 529 |
| 111 | Neurology | 13 | 606 | 3712 | 3379 |
| 111 | Health Education | 26 | 606 | 642 | 652 |
| 111 | carcinogens | 12 | 606 | 500 | 457 |
| 114 | Neurophysiology | 5 | 596 | 2860 | 1842 |
| 115 | Psychiatry | 13 | 587 | 2919 | 2548 |
| 116 | Bioorganic chemistry | 9 | 578 | 2104 | 1470 |
| 117 | free radicals | 3 | 577 | 1830 | 874 |
| 118 | China | 1 | 576 | 5519 | 925 |
| 119 | cytokines | 5 | 571 | 1258 | 556 |
| 119 | Cytokine | 5 | 571 | 341 | 166 |
| 121 | Patient education | 16 | 529 | 237 | 285 |
| 121 | counseling | 16 | 529 | 584 | 497 |
| 123 | Biomedical Engineering | 47 | 522 | 1376 | 2609 |
| 124 | Oxidative stress | 7 | 517 | 812 | 623 |
| 125 | mutagens | 10 | 512 | 490 | 489 |
| 126 | Molecular structure | 6 | 504 | 2196 | 1185 |
| 127 | Multiple Myeloma | 93 | 487 | 39 | 42 |
| 128 | Immunogenetics | 10 | 477 | 412 | 299 |
| 129 | nanoscience | 7 | 476 | 2375 | 1835 |
| 130 | Critical Care Medicine | 9 | 475 | 1187 | 1342 |
| 131 | Oxidation-reduction | 2 | 467 | 1229 | 630 |
| 132 | Clinical Pharmacology | 11 | 461 | 954 | 685 |
| 133 | Critical Care | 6 | 454 | 1575 | 1383 |
| 134 | Enteral nutrition | 8 | 445 | 647 | 543 |
| 134 | Parenteral nutrition | 8 | 445 | 832 | 679 |
| 136 | Mental illness | 1 | 434 | 4008 | 1507 |
| 137 | Aging | 5 | 429 | 2964 | 1631 |
| 138 | Geriatrics | 3 | 427 | 3948 | 1634 |
| 139 | Genes | 8 | 420 | 784 | 463 |
| 140 | DNS | 5 | 403 | 410 | 147 |
| 140 | DNA | 5 | 403 | 496 | 147 |
| 142 | Radiation | 17 | 388 | 1038 | 986 |
| 143 | Ecology | 2 | 377 | 8623 | 5131 |
| 144 | Molecular ecology | 1 | 376 | 2085 | 907 |
| 145 | Physical organic chemistry | 1 | 371 | 2386 | 615 |
| 146 | Dermatology | 12 | 356 | 1200 | 1149 |
| 147 | United Kingdom | 11 | 336 | 1005 | 1191 |
| 148 | viruses | 5 | 330 | 1530 | 1363 |
| 149 | Australia | 23 | 316 | 625 | 834 |
| 150 | Biochemical Engineering | 4 | 308 | 3488 | 3234 |
| 151 | Developmental Genetics | 4 | 298 | 608 | 663 |
| 151 | viral genetics | 4 | 298 | 369 | 529 |
| 153 | DNA methylation | 5 | 296 | 209 | 192 |
| 154 | Diet | 13 | 295 | 1300 | 1855 |
| 155 | Bioengineering | 8 | 288 | 3533 | 3847 |
| 156 | Diabetes mellitus | 6 | 285 | 2037 | 2073 |
| 156 | Psychophysiology | 2 | 285 | 4096 | 2378 |
| 156 | Diabetes | 6 | 285 | 2111 | 2136 |
| 159 | Neuropsychology | 1 | 283 | 4219 | 1680 |
| 159 | Clinical Immunology | 11 | 283 | 840 | 955 |
| 159 | Brain | 1 | 283 | 4582 | 2160 |
| 159 | Cognition | 1 | 283 | 3064 | 1192 |
| 163 | Biopharmaceutics | 4 | 279 | 1301 | 795 |
| 164 | Brachytherapy | 20 | 275 | 89 | 74 |
| 165 | Biocompatible Materials | 6 | 269 | 3354 | 3409 |
| 166 | Dietetics | 9 | 268 | 517 | 399 |
| 166 | Health Services Research | 19 | 268 | 698 | 1081 |
| 168 | cell interaction | 6 | 263 | 991 | 921 |
| 169 | Psychoneuroimmunology | 11 | 256 | 340 | 621 |
| 169 | Neuroimmunology | 11 | 256 | 379 | 676 |
| 171 | Social work | 11 | 246 | 804 | 641 |
| 172 | Medical Technology | 8 | 237 | 1303 | 1237 |
| 173 | Primary health care | 24 | 225 | 590 | 1192 |
| 173 | Hormones | 4 | 225 | 1489 | 1208 |
| 175 | Randomized Controlled Trials | 14 | 224 | 566 | 605 |
| 176 | Food | 6 | 222 | 2816 | 2601 |
| 177 | Molecular cloning | 10 | 219 | 901 | 1132 |
| 177 | Genetic recombination | 10 | 219 | 877 | 1115 |
| 179 | Bioinorganic chemistry | 8 | 218 | 1013 | 998 |
| 180 | Proteome | 7 | 216 | 954 | 1191 |
| 181 | rehabilitation | 7 | 215 | 1825 | 1741 |
| 182 | Organic Chemistry | 9 | 213 | 2460 | 2498 |
| 183 | Genetic Counseling | 14 | 196 | 97 | 159 |
| 184 | mutation | 7 | 194 | 430 | 630 |
| 185 | Proteomics | 7 | 189 | 876 | 1173 |
| 186 | Cardiovascular system | 3 | 186 | 2103 | 2194 |
| 186 | Mycology | 5 | 186 | 1603 | 1419 |
| 186 | mycoses | 5 | 186 | 805 | 1065 |
| 189 | Pediatrics | 1 | 185 | 5114 | 2785 |
| 189 | Thorax | 4 | 185 | 527 | 499 |
| 191 | Bacteriology | 5 | 184 | 1954 | 2172 |
| 192 | Hypertension | 3 | 180 | 2142 | 2111 |
| 193 | cell proliferation | 5 | 179 | 293 | 230 |
| 194 | Medical Laboratory Science | 11 | 173 | 1244 | 2044 |
| 195 | DNA polymerases | 4 | 168 | 451 | 897 |
| 196 | Cell division | 4 | 167 | 562 | 481 |
| 197 | drug resistance | 5 | 166 | 610 | 632 |
| 198 | Antibacterial agents | 5 | 161 | 636 | 729 |
| 199 | X-rays | 8 | 160 | 409 | 399 |
| 200 | Health | 5 | 157 | 2335 | 2137 |
| 200 | Social support | 8 | 157 | 74 | 132 |
| 200 | Social environment | 8 | 157 | 87 | 145 |
| 203 | Immunopathology | 5 | 156 | 1418 | 1500 |
| 204 | Drug design | 5 | 153 | 1606 | 1713 |
| 205 | Image Processing | 3 | 152 | 2380 | 1797 |
| 206 | Industrial Microbiology | 2 | 150 | 2844 | 2187 |
| 207 | Molecular Pharmacology | 3 | 149 | 1001 | 958 |
| 208 | Research Design | 7 | 146 | 964 | 1252 |
| 209 | Reproduction | 4 | 145 | 2643 | 2298 |
| 210 | Computer Vision | 1 | 144 | 2201 | 1268 |
| 211 | Thrombosis | 7 | 143 | 966 | 1247 |
| 212 | Chromosomes | 6 | 141 | 861 | 1122 |
| 212 | Cell communication | 2 | 141 | 1257 | 919 |
| 214 | Antibodies | 5 | 139 | 653 | 718 |
| 215 | Histochemistry | 5 | 138 | 1020 | 982 |
| 215 | risk factors | 2 | 138 | 1152 | 766 |
| 215 | Cardiovascular diseases | 3 | 138 | 2133 | 1536 |
| 218 | Systems Biology | 9 | 134 | 1063 | 1676 |
| 218 | Muscles | 5 | 134 | 883 | 1118 |
| 220 | proteins | 8 | 132 | 1709 | 2233 |
| 221 | Fluorescence spectroscopy | 6 | 127 | 182 | 219 |
| 221 | Materials | 4 | 127 | 6104 | 5632 |
| 221 | Molecular Spectroscopy | 6 | 127 | 1519 | 1604 |
| 221 | Quality of life | 6 | 127 | 1259 | 1788 |
| 225 | Biometrics | 3 | 124 | 1358 | 1031 |
| 226 | hospice care | 8 | 123 | 343 | 425 |
| 226 | Electrophoresis | 5 | 123 | 1605 | 1704 |
| 228 | Orthopedics | 4 | 122 | 1826 | 1739 |
| 228 | Infection control | 4 | 122 | 738 | 727 |
| 230 | heredity | 4 | 121 | 702 | 623 |
| 231 | Physical Therapy | 3 | 120 | 1692 | 1598 |
| 231 | Sexual health | 2 | 120 | 1227 | 640 |
| 233 | Hemostasis | 5 | 113 | 825 | 867 |
| 234 | Antioxidants | 1 | 110 | 1567 | 1235 |
| 234 | vitamin C | 1 | 110 | 938 | 565 |
| 234 | vitamin E | 1 | 110 | 938 | 565 |
| 237 | miniaturization | 2 | 109 | 2662 | 2405 |
| 238 | Microelectronics | 1 | 107 | 3118 | 2076 |
| 239 | Genetic epidemiology | 3 | 106 | 365 | 368 |
| 239 | chromatin | 3 | 106 | 152 | 240 |
| 241 | Nanostructures | 2 | 103 | 3218 | 2559 |
| 242 | Ophthalmology | 1 | 102 | 3289 | 2113 |
| 242 | calcification | 3 | 102 | 698 | 763 |
| 244 | Lung Transplantation | 1 | 101 | 1268 | 651 |
| 244 | Heart transplantation | 1 | 101 | 1268 | 651 |
| 244 | blood transfusion | 1 | 101 | 1741 | 826 |
| 247 | Sleep Disorders | 6 | 100 | 1591 | 1896 |
| 248 | Sports Medicine | 10 | 97 | 1810 | 2446 |
| 249 | Physical Chemistry | 2 | 96 | 3209 | 2532 |
| 249 | histological techniques | 3 | 96 | 873 | 1115 |
| 251 | Radioisotopes | 5 | 95 | 1181 | 1041 |
| 252 | Mental Health | 5 | 94 | 1590 | 1767 |
| 253 | enzymes | 5 | 92 | 1458 | 2014 |
| 254 | health services | 5 | 91 | 1025 | 1242 |
| 255 | Toxicology | 3 | 90 | 5899 | 5942 |
| 256 | Radiation Protection | 8 | 88 | 397 | 429 |
| 256 | radiation monitoring | 8 | 88 | 358 | 407 |
| 256 | Hematopoietic stem cell transplantation | 3 | 88 | 577 | 752 |
| 256 | Socioeconomic Factors | 2 | 88 | 1207 | 974 |
| 256 | Sarcopenia | 4 | 88 | 359 | 720 |
| 261 | cosmic rays | 4 | 87 | 500 | 448 |
| 262 | Drug discovery | 4 | 86 | 251 | 372 |
| 263 | Sports | 8 | 85 | 1528 | 1956 |
| 263 | RNA | 2 | 85 | 774 | 834 |
| 265 | Cell migration | 1 | 83 | 217 | 145 |
| 265 | Cell adhesion | 1 | 83 | 393 | 240 |
| 265 | cell movement | 1 | 83 | 531 | 402 |
| 268 | Radiation dosimetry | 6 | 82 | 355 | 315 |
| 269 | health behavior | 3 | 80 | 1236 | 1313 |
| 270 | Genetic testing | 11 | 79 | 90 | 265 |
| 270 | Vaccines | 6 | 79 | 1672 | 2599 |
| 272 | behavioral medicine | 4 | 78 | 1443 | 2206 |
| 273 | poverty | 1 | 76 | 1024 | 526 |
| 273 | healthcare disparities | 1 | 76 | 1200 | 639 |
| 275 | Biosensors | 3 | 74 | 1532 | 2287 |
| 275 | Genetic disorders | 1 | 74 | 1100 | 801 |
| 275 | scientific societies | 1 | 74 | 1818 | 1151 |
| 278 | Health Policy | 5 | 73 | 2379 | 3197 |
| 278 | Molecular Genetics | 4 | 73 | 2261 | 3102 |
| 278 | Evolution | 2 | 73 | 2883 | 2774 |
| 281 | Psychosomatic Medicine | 1 | 70 | 1775 | 1372 |
| 281 | health planning | 4 | 70 | 2355 | 2585 |
| 283 | Radiography | 3 | 69 | 828 | 972 |
| 283 | drug evaluation | 5 | 69 | 1288 | 1871 |
| 285 | Visual Perception | 7 | 67 | 1535 | 2638 |
| 285 | Memory | 7 | 67 | 1672 | 2914 |
| 285 | Attention | 7 | 67 | 1601 | 2743 |
| 285 | Perception | 7 | 67 | 1706 | 2849 |
| 289 | Neurotoxicology | 1 | 66 | 1254 | 998 |
| 289 | Apoptosis | 1 | 66 | 661 | 473 |
| 289 | neurotoxins | 1 | 66 | 661 | 473 |
| 289 | Neurotoxic agents | 1 | 66 | 661 | 473 |
| 289 | Nerve regeneration | 1 | 66 | 661 | 473 |
| 294 | Analytical Chemistry | 5 | 65 | 4419 | 5636 |
| 294 | Soil Science | 1 | 65 | 3275 | 2474 |
| 296 | Materials Science | 2 | 61 | 6327 | 5708 |
| 296 | Invertebrates | 1 | 61 | 1327 | 872 |
| 298 | preventive medicine | 2 | 60 | 2164 | 2273 |
| 298 | Health promotion | 3 | 60 | 1965 | 2271 |
| 300 | Surface Chemistry | 1 | 59 | 5852 | 4824 |
| 300 | Optics | 1 | 59 | 7586 | 4657 |
| 300 | Surface-Active Agents | 1 | 59 | 2097 | 1919 |
| 300 | Surface properties | 1 | 59 | 2208 | 2029 |
| 300 | Colloids | 1 | 59 | 5777 | 5038 |
| 300 | Liver diseases | 2 | 59 | 2203 | 2730 |
| 306 | Hospitals | 3 | 57 | 934 | 1083 |
| 307 | Drug delivery systems | 4 | 56 | 1568 | 2527 |
| 308 | Cognitive Therapy | 2 | 55 | 923 | 918 |
| 309 | Data Mining | 6 | 53 | 1317 | 2801 |
| 309 | Genetic Toxicology | 1 | 53 | 1075 | 1061 |
| 309 | data collection | 6 | 53 | 834 | 2102 |
| 312 | Sleep | 4 | 51 | 1919 | 2460 |
| 312 | Chronic diseases | 1 | 51 | 1516 | 1440 |
| 314 | Feasibility studies | 8 | 50 | 156 | 255 |
| 314 | Public opinion | 1 | 50 | 858 | 672 |
| 314 | Cell survival | 5 | 50 | 125 | 499 |
| 314 | molecular chaperones | 5 | 50 | 154 | 502 |
| 318 | Nervous system | 2 | 49 | 3673 | 4260 |
| 318 | Suicide | 2 | 49 | 849 | 898 |
| 320 | Radiopharmaceuticals | 5 | 47 | 340 | 359 |
| 321 | Neurobiology | 3 | 46 | 2247 | 3223 |
| 321 | Neuromuscular diseases | 1 | 46 | 1438 | 1259 |
| 321 | visualization | 7 | 46 | 1288 | 1359 |
| 321 | biological evolution | 1 | 46 | 3922 | 3840 |
| 325 | peptides | 2 | 45 | 1420 | 1322 |
| 325 | Peptide | 2 | 45 | 330 | 300 |
| 327 | Interferons | 2 | 44 | 467 | 565 |
| 328 | Clinical Trials | 4 | 43 | 606 | 1022 |
| 328 | Electrochemistry | 2 | 43 | 4897 | 4718 |
| 328 | Nutrigenomics | 1 | 43 | 288 | 305 |
| 328 | transport vesicles | 2 | 43 | 373 | 884 |
| 332 | General Surgery | 2 | 42 | 1199 | 1113 |
| 332 | pain management | 3 | 42 | 876 | 1200 |
| 332 | Neurons | 1 | 42 | 1332 | 1826 |
| 332 | pain | 3 | 42 | 1838 | 2589 |
| 336 | anesthesia | 7 | 41 | 414 | 730 |
| 337 | Drosophila | 1 | 40 | 145 | 86 |
| 338 | Music Therapy | 2 | 39 | 341 | 329 |
| 339 | Neurochemistry | 1 | 38 | 4146 | 4063 |
| 339 | Biomarkers | 3 | 38 | 519 | 808 |
| 339 | biochemical markers | 3 | 38 | 1061 | 1554 |
| 342 | embryonic development | 2 | 35 | 666 | 917 |
| 343 | Statistics | 2 | 34 | 3813 | 3472 |
| 343 | Pediatric Neurology | 1 | 34 | 2087 | 2568 |
| 343 | Diagnostic microbiology | 1 | 34 | 2599 | 3186 |
| 346 | Morphogenesis | 1 | 32 | 173 | 244 |
| 346 | Plant genetic engineering | 2 | 32 | 1351 | 1906 |
| 346 | Organogenesis | 1 | 32 | 97 | 176 |
| 346 | drug addiction | 1 | 32 | 2282 | 2373 |
| 346 | alcoholism | 1 | 32 | 2944 | 2896 |
| 351 | Sociology | 3 | 31 | 3813 | 5018 |
| 351 | Nursing | 4 | 31 | 2103 | 2964 |
| 351 | Nuclear Physics | 2 | 31 | 5034 | 4931 |
| 354 | Bioenergetics | 1 | 30 | 1728 | 1792 |
| 354 | protein | 3 | 30 | 1573 | 2306 |
| 354 | vascular diseases | 2 | 30 | 1170 | 1694 |
| 357 | Psychopharmacology | 2 | 29 | 2453 | 3077 |
| 357 | Preoperative Care | 2 | 29 | 138 | 184 |
| 357 | perioperative care | 2 | 29 | 136 | 184 |
| 357 | Medical Anthropology | 2 | 29 | 1970 | 3129 |
| 361 | Analytical Biochemistry | 3 | 28 | 2261 | 3390 |
| 361 | patient satisfaction | 1 | 28 | 375 | 165 |
| 361 | Culture techniques | 1 | 28 | 696 | 634 |
| 364 | Steroids | 1 | 27 | 1994 | 2125 |
| 365 | biomedicine | 2 | 26 | 1464 | 2113 |
| 366 | Crisis Intervention | 1 | 25 | 407 | 434 |
| 366 | Obesity | 2 | 25 | 3093 | 4444 |
| 366 | Chemical analysis | 2 | 25 | 1779 | 2445 |
| 369 | Parasitology | 1 | 24 | 4234 | 4247 |
| 369 | sadness | 1 | 24 | 556 | 494 |
| 369 | Astrocytes | 1 | 24 | 1011 | 1383 |
| 369 | disease vectors | 1 | 24 | 1965 | 2261 |
| 369 | Parasites | 1 | 24 | 3013 | 3108 |
| 369 | death | 1 | 24 | 717 | 591 |
| 369 | antisocial personality disorder | 1 | 24 | 556 | 494 |
| 376 | Nutrition physiology | 2 | 23 | 1215 | 1824 |
| 376 | Radiotherapy | 8 | 23 | 294 | 550 |
| 376 | Endocrine system | 6 | 23 | 757 | 793 |
| 379 | Organometallic chemistry | 2 | 22 | 2683 | 3148 |
| 379 | disabilities | 1 | 22 | 1633 | 1687 |
| 379 | rare diseases | 2 | 22 | 1085 | 1642 |
| 379 | Synapses | 1 | 22 | 624 | 756 |
| 379 | phototherapy | 2 | 22 | 373 | 330 |
| 384 | Technology | 1 | 21 | 8003 | 7369 |
| 384 | Optical materials | 1 | 21 | 4044 | 4537 |
| 386 | Human-Computer Interaction | 1 | 20 | 2997 | 3084 |
| 386 | health services accessibility | 2 | 20 | 1527 | 2228 |
| 386 | Online social networks | 1 | 20 | 762 | 793 |
| 386 | mental health promotion | 1 | 20 | 381 | 493 |
| 386 | internet | 1 | 20 | 2476 | 2343 |
| 386 | Bones | 4 | 20 | 1062 | 2148 |
| 392 | Botany | 1 | 19 | 6112 | 6610 |
| 392 | Plant Biotechnology | 1 | 19 | 1588 | 1789 |
| 392 | Digestive system diseases | 2 | 19 | 1521 | 2303 |
| 395 | Polymers | 1 | 18 | 6973 | 7186 |
| 395 | Food Microbiology | 1 | 18 | 2483 | 3201 |
| 395 | food technology | 1 | 18 | 4516 | 5154 |
| 395 | Developmental Neurobiology | 1 | 18 | 1238 | 1333 |
| 399 | Orthopedic Surgery | 1 | 17 | 1801 | 1997 |
| 400 | epilepsy | 1 | 16 | 2011 | 2414 |
| 400 | Organometallic compounds | 1 | 16 | 2122 | 2343 |
| 400 | Lipids | 1 | 16 | 2675 | 3376 |
| 400 | Exercise | 1 | 16 | 2618 | 2604 |
| 400 | sports injuries | 1 | 16 | 1212 | 1340 |
| 405 | Bioethics | 4 | 15 | 928 | 1926 |
| 405 | Osteoporosis | 1 | 15 | 882 | 1178 |
| 405 | Cell surface receptors | 1 | 15 | 351 | 447 |
| 405 | Chromatographic analysis | 2 | 15 | 2860 | 3963 |
| 409 | Astronomy | 2 | 14 | 3579 | 4665 |
| 409 | biobanks | 1 | 14 | 393 | 504 |
| 409 | mammals | 1 | 14 | 2109 | 2355 |
| 412 | Metallurgy | 1 | 13 | 4324 | 4382 |
| 412 | Mental Disorders | 2 | 13 | 4635 | 6726 |
| 412 | transgenic organisms | 1 | 13 | 657 | 1001 |
| 412 | transgenic animals | 1 | 13 | 622 | 966 |
| 412 | Mental Health Services | 2 | 13 | 2089 | 3168 |
| 412 | Transgenic plants | 1 | 13 | 1047 | 1503 |
| 412 | Asia | 2 | 13 | 4366 | 5680 |
| 412 | Nitric oxide | 1 | 13 | 822 | 1073 |
| 412 | Gastrointestinal diseases | 1 | 13 | 1619 | 1972 |
| 421 | Erectile dysfunction | 1 | 12 | 609 | 766 |
| 421 | Medical Ethics | 4 | 12 | 1213 | 2669 |
| 421 | Cell cycle | 1 | 12 | 729 | 1045 |
| 421 | ovary | 2 | 12 | 323 | 801 |
| 421 | Spectrum analysis | 2 | 12 | 5799 | 7782 |
| 421 | Microscopy | 2 | 12 | 2597 | 3503 |
| 427 | Geriatric Pharmacology | 4 | 11 | 321 | 1080 |
| 427 | Genetic Research | 2 | 11 | 268 | 718 |
| 427 | Developmental Immunology | 2 | 11 | 1253 | 2323 |
| 427 | Elderly | 5 | 11 | 1225 | 2195 |
| 427 | older people | 5 | 11 | 1636 | 3310 |
| 427 | Information Science | 1 | 11 | 4777 | 5481 |
| 427 | Scanning electron microscopy | 1 | 11 | 456 | 570 |
| 434 | Microbial Ecology | 2 | 10 | 3325 | 5729 |
| 434 | Health care reform | 1 | 10 | 186 | 262 |
| 436 | Plant Genetics | 1 | 9 | 1314 | 1903 |
| 436 | Social welfare | 1 | 9 | 1318 | 1732 |
| 436 | Gerontology | 2 | 9 | 3018 | 4334 |
| 436 | plant molecular biology | 1 | 9 | 2662 | 3694 |
| 436 | pharmaceutical industry | 2 | 9 | 911 | 1759 |
| 441 | Global Health | 1 | 8 | 2576 | 3376 |
| 441 | Child psychology | 2 | 8 | 2246 | 3773 |
| 441 | arthritis | 2 | 8 | 1922 | 3363 |
| 444 | Speech-Language Pathology | 1 | 7 | 627 | 959 |
| 444 | Language Disorders | 1 | 7 | 1632 | 2158 |
| 444 | Music | 1 | 7 | 1939 | 1983 |
| 444 | speech therapy | 1 | 7 | 829 | 1141 |
| 444 | voice | 1 | 7 | 1051 | 1389 |
| 444 | Well-being | 1 | 7 | 338 | 572 |
| 444 | Speech Disorders | 1 | 7 | 1917 | 2532 |
| 451 | Neurosurgery | 2 | 6 | 1795 | 2971 |
| 451 | Photonics | 1 | 6 | 2950 | 3915 |
| 451 | Telemedicine | 1 | 6 | 1058 | 1782 |
| 451 | Health Physics | 2 | 6 | 367 | 733 |
| 451 | Solid State Chemistry | 1 | 6 | 3922 | 4792 |
| 451 | Chromatography | 1 | 6 | 3141 | 4223 |
| 451 | Magnetic Resonance Spectroscopy | 2 | 6 | 1777 | 2845 |
| 451 | nuclear magnetic resonance spectroscopy | 1 | 6 | 1447 | 1850 |
| 451 | sociological factors | 3 | 6 | 26 | 90 |
| 451 | Opioids | 1 | 6 | 200 | 315 |
| 451 | Scandinavia | 1 | 6 | 1336 | 1832 |
| 451 | NMR | 1 | 6 | 1097 | 1457 |
| 451 | magnetic resonance | 1 | 6 | 1152 | 1509 |
| 451 | vitamins | 1 | 6 | 389 | 820 |
| 465 | Obstetrics | 1 | 5 | 4823 | 6111 |
| 465 | Screening | 1 | 5 | 521 | 897 |
| 467 | Child Development | 2 | 4 | 2916 | 5167 |
| 467 | Information management | 1 | 4 | 250 | 566 |
| 467 | medical education | 2 | 4 | 3103 | 5352 |
| 470 | Pharmacy | 1 | 3 | 4217 | 5877 |
| 470 | Nanochemistry | 1 | 3 | 2275 | 3376 |
| 470 | Hematopoiesis | 1 | 3 | 162 | 337 |
| 470 | Diagnosis | 1 | 3 | 1447 | 2355 |
| 470 | Nanostructured Materials | 1 | 3 | 4938 | 6657 |
| 470 | monoclonal antibodies | 1 | 3 | 564 | 927 |
| 470 | Infertility | 1 | 3 | 2149 | 2761 |
| 470 | Pharmacy management | 1 | 3 | 766 | 1113 |
| 470 | fertility | 1 | 3 | 2257 | 2897 |
| 479 | Social Sciences | 1 | 2 | 7122 | 8935 |
| 479 | Andrology | 1 | 2 | 1408 | 2237 |
| 479 | Mutagenesis | 2 | 2 | 747 | 1938 |
| 479 | men's health | 1 | 2 | 82 | 187 |
| 479 | Dementia | 1 | 2 | 2714 | 3001 |
| 479 | Alzheimer's disease | 1 | 2 | 2779 | 3086 |
| 479 | Informatics | 1 | 2 | 1743 | 2731 |
| 479 | Brain damage | 1 | 2 | 984 | 1716 |
| 487 | Alternative Medicine | 1 | 1 | 3740 | 5625 |
| 487 | Integrative Medicine | 1 | 1 | 725 | 1345 |
| 487 | complementary therapies | 1 | 1 | 4104 | 6159 |
| 487 | Building | 1 | 1 | 1292 | 2045 |
| 491 | Dentistry | 1 | 0 | 1548 | 2454 |
| 491 | Occupational Health | 1 | 0 | 2586 | 4189 |
| 491 | Neonatology | 1 | 0 | 1461 | 2517 |
| 491 | Environmental Health | 1 | 0 | 9426 | 13198 |
| 491 | Combinatorial chemistry | 1 | 0 | 1827 | 3007 |
| 491 | epidemiologic methods | 1 | 0 | 437 | 1035 |
| 491 | occupational diseases | 1 | 0 | 2081 | 3701 |
| 491 | Microcirculation | 1 | 0 | 1065 | 1821 |
| 491 | Evidence-based practice | 1 | 0 | 330 | 458 |
| 491 | Evidence-Based Medicine | 2 | 0 | 2009 | 4311 |
| 491 | nuclear magnetic resonance | 1 | 0 | 2021 | 3055 |
| 491 | Extracellular matrix | 1 | 0 | 595 | 1034 |
| 491 | environmental exposure | 1 | 0 | 3904 | 6030 |
| 491 | Blood vessels | 1 | 0 | 890 | 1547 |
| 491 | Structure-activity relationship | 1 | 0 | 1012 | 1789 |
| 491 | Women's health | 1 | 0 | 2927 | 4813 |
| 491 | Cell metabolism | 1 | 0 | 1526 | 2596 |
| 491 | collagen | 1 | 0 | 620 | 1069 |
