| 1 | Medicine | 296 | 58.3K | 935 | 258 |
| 2 | Molecular Biology | 261 | 37.8K | 833 | 356 |
| 3 | Science | 247 | 36.0K | 1007 | 618 |
| 4 | Hematology | 591 | 34.3K | 99 | 81 |
| 5 | Cancer | 540 | 33.5K | 86 | 79 |
| 6 | Immunology | 230 | 31.6K | 340 | 161 |
| 7 | Cell Biology | 164 | 30.5K | 435 | 222 |
| 8 | Biology | 206 | 29.1K | 1082 | 714 |
| 9 | Cytology | 170 | 25.8K | 475 | 264 |
| 10 | Biochemistry | 504 | 24.9K | 692 | 567 |
| 11 | Physics | 102 | 24.3K | 1989 | 890 |
| 12 | Natural history | 48 | 20.6K | 794 | 541 |
| 13 | Virology | 125 | 20.2K | 358 | 223 |
| 14 | Cell death | 88 | 18.4K | 69 | 21 |
| 15 | Oncogenes | 129 | 17.6K | 48 | 20 |
| 16 | Cell differentiation | 115 | 17.5K | 149 | 80 |
| 17 | Immunity | 48 | 16.4K | 395 | 142 |
| 18 | Endocrinology | 145 | 15.7K | 315 | 181 |
| 19 | Metabolism | 113 | 15.5K | 325 | 145 |
| 20 | Research | 216 | 15.1K | 885 | 515 |
| 21 | Radiobiology | 218 | 14.9K | 45 | 30 |
| 22 | Surgery | 35 | 14.6K | 443 | 121 |
| 23 | Medical Oncology | 225 | 14.2K | 62 | 45 |
| 24 | Metabolic diseases | 107 | 14.1K | 256 | 134 |
| 25 | Human genetics | 66 | 12.0K | 407 | 407 |
| 26 | Immune system | 20 | 11.7K | 297 | 87 |
| 27 | Oncology | 156 | 10.0K | 115 | 186 |
| 28 | Biophysics | 182 | 8.7K | 699 | 511 |
| 29 | Immunotherapy | 90 | 8.0K | 128 | 104 |
| 30 | Medical genetics | 70 | 7.0K | 521 | 365 |
| 31 | Microbiology | 69 | 6.9K | 1487 | 905 |
| 32 | Pharmacology | 102 | 6.6K | 917 | 554 |
| 33 | Nutrition | 70 | 6.1K | 754 | 397 |
| 34 | Statistics | 22 | 5.7K | 1021 | 174 |
| 35 | Genetics | 77 | 5.4K | 653 | 591 |
| 36 | Leukemia | 85 | 4.9K | 88 | 123 |
| 37 | Physiology | 24 | 4.3K | 1544 | 553 |
| 38 | nucleic acids | 80 | 3.9K | 229 | 368 |
| 39 | gene therapy | 59 | 3.7K | 95 | 80 |
| 40 | Pharmaceutical Chemistry | 38 | 3.7K | 1138 | 550 |
| 41 | Allergy | 15 | 3.5K | 469 | 237 |
| 42 | Genetic therapy | 63 | 3.4K | 103 | 84 |
| 43 | Diet | 34 | 3.2K | 502 | 330 |
| 44 | Epidemiology | 69 | 3.2K | 614 | 464 |
| 45 | Chemistry | 45 | 3.1K | 3183 | 2255 |
| 46 | Pathology | 59 | 3.1K | 427 | 368 |
| 47 | viruses | 46 | 2.7K | 321 | 307 |
| 48 | drug development | 11 | 2.7K | 436 | 162 |
| 49 | Biomedical Engineering | 13 | 2.6K | 2725 | 850 |
| 50 | Cytogenetics | 29 | 2.6K | 381 | 303 |
| 51 | Medical innovations | 9 | 2.5K | 487 | 186 |
| 52 | Public Health | 29 | 2.5K | 1786 | 924 |
| 53 | Neurology | 28 | 2.4K | 1830 | 1309 |
| 54 | diseases | 1 | 2.4K | 625 | 169 |
| 54 | Disease | 1 | 2.4K | 635 | 167 |
| 56 | Geriatric Oncology | 41 | 2.3K | 37 | 20 |
| 57 | Dermatology | 15 | 2.3K | 774 | 225 |
| 58 | cell physiology | 21 | 2.3K | 510 | 306 |
| 59 | Carcinogenesis | 30 | 2.2K | 168 | 102 |
| 60 | Genomics | 32 | 2.1K | 903 | 583 |
| 61 | Biometrics | 20 | 2.0K | 358 | 133 |
| 62 | gene mapping | 27 | 2.0K | 552 | 401 |
| 63 | Medical Physics | 31 | 2.0K | 493 | 316 |
| 64 | Radiation | 12 | 2.0K | 1046 | 182 |
| 65 | Diagnostic Imaging | 37 | 1.8K | 435 | 321 |
| 66 | Bacteriology | 34 | 1.6K | 498 | 527 |
| 67 | Diagnostic microbiology | 9 | 1.6K | 706 | 400 |
| 68 | Medical Microbiology | 18 | 1.5K | 917 | 659 |
| 69 | Chromosome mapping | 23 | 1.5K | 550 | 399 |
| 70 | Stem cells | 39 | 1.5K | 323 | 368 |
| 71 | Parenteral nutrition | 7 | 1.5K | 614 | 205 |
| 72 | Enteral nutrition | 6 | 1.5K | 535 | 161 |
| 73 | Therapeutics | 17 | 1.4K | 628 | 389 |
| 74 | mutation | 22 | 1.4K | 119 | 81 |
| 75 | Clinical Chemistry | 37 | 1.4K | 772 | 735 |
| 76 | Bioenergetics | 13 | 1.4K | 326 | 139 |
| 77 | transport vesicles | 2 | 1.3K | 313 | 241 |
| 78 | carcinogens | 21 | 1.3K | 235 | 172 |
| 79 | Radiology | 62 | 1.3K | 161 | 158 |
| 80 | Urology | 30 | 1.3K | 477 | 405 |
| 81 | Electrochemistry | 15 | 1.3K | 1894 | 955 |
| 82 | mutagens | 21 | 1.3K | 211 | 179 |
| 83 | drug therapy | 17 | 1.3K | 910 | 533 |
| 84 | Europe | 33 | 1.2K | 866 | 562 |
| 85 | Engineering | 8 | 1.2K | 3040 | 801 |
| 86 | Electronics | 7 | 1.2K | 2600 | 842 |
| 87 | Transplantation | 13 | 1.2K | 524 | 360 |
| 88 | DNA repair | 20 | 1.2K | 45 | 30 |
| 89 | Genetic engineering | 29 | 1.2K | 543 | 593 |
| 90 | Visual Perception | 28 | 1.1K | 442 | 395 |
| 90 | Memory | 28 | 1.1K | 511 | 486 |
| 90 | Attention | 28 | 1.1K | 456 | 398 |
| 90 | Perception | 28 | 1.1K | 530 | 464 |
| 94 | Reproduction | 19 | 1.1K | 886 | 584 |
| 95 | Chromosomes | 21 | 1.0K | 253 | 217 |
| 96 | Immunopathology | 10 | 1.0K | 673 | 332 |
| 97 | Genetic regulation | 23 | 1.0K | 301 | 407 |
| 98 | Nuclear Medicine | 24 | 1.0K | 281 | 241 |
| 99 | Analytical Biochemistry | 9 | 981 | 1005 | 359 |
| 100 | Host-parasite interactions | 8 | 979 | 700 | 557 |
| 101 | Molecular Imaging | 20 | 968 | 184 | 194 |
| 102 | infection | 15 | 965 | 668 | 484 |
| 103 | Developmental Biology | 10 | 961 | 1057 | 777 |
| 104 | Infections | 14 | 959 | 433 | 364 |
| 105 | Environmental Health | 19 | 937 | 2250 | 1935 |
| 106 | Biotechnology | 20 | 935 | 2706 | 2469 |
| 107 | Virulence | 8 | 934 | 665 | 514 |
| 108 | drugs | 21 | 874 | 707 | 500 |
| 109 | Obstetrics | 20 | 870 | 806 | 598 |
| 110 | Cardiovascular system | 3 | 765 | 1525 | 808 |
| 111 | Environment | 7 | 755 | 3405 | 2565 |
| 112 | Liver diseases | 9 | 742 | 861 | 735 |
| 113 | Molecular structure | 12 | 734 | 1233 | 749 |
| 114 | Infertility | 9 | 732 | 499 | 368 |
| 114 | fertility | 9 | 732 | 546 | 389 |
| 116 | Critical Care | 11 | 712 | 784 | 763 |
| 116 | Critical Care Medicine | 11 | 712 | 743 | 760 |
| 118 | Diabetes mellitus | 11 | 706 | 1053 | 909 |
| 118 | Diabetes | 11 | 706 | 1107 | 944 |
| 120 | Teratology | 2 | 704 | 342 | 64 |
| 121 | disease outbreaks | 15 | 674 | 150 | 154 |
| 121 | Epidemics | 15 | 674 | 148 | 154 |
| 123 | cloning | 17 | 659 | 168 | 321 |
| 124 | Membranes | 15 | 638 | 773 | 801 |
| 125 | Antigens | 20 | 630 | 250 | 265 |
| 126 | free radicals | 12 | 623 | 645 | 682 |
| 127 | Environmental Toxicology | 5 | 622 | 1969 | 1010 |
| 128 | Hormones | 19 | 603 | 441 | 502 |
| 129 | Embryology | 8 | 596 | 945 | 755 |
| 130 | Parasitic Diseases | 9 | 544 | 1240 | 817 |
| 131 | Pharmacy | 14 | 536 | 910 | 786 |
| 132 | Recombinant DNA | 18 | 532 | 498 | 531 |
| 133 | DNA polymerases | 4 | 529 | 361 | 369 |
| 134 | Medical Laboratory Science | 15 | 514 | 959 | 1094 |
| 135 | Neurochemistry | 6 | 511 | 1708 | 1097 |
| 136 | histological techniques | 12 | 485 | 261 | 309 |
| 137 | Oxidation-reduction | 9 | 469 | 408 | 516 |
| 138 | Metastasis | 6 | 467 | 71 | 108 |
| 139 | Genetic Toxicology | 6 | 460 | 269 | 176 |
| 140 | Molecular cloning | 14 | 458 | 585 | 562 |
| 140 | Genetic recombination | 14 | 458 | 563 | 552 |
| 142 | Antibodies | 13 | 456 | 236 | 247 |
| 143 | Pediatric Neurology | 4 | 437 | 826 | 713 |
| 143 | Nervous system | 4 | 437 | 2107 | 1292 |
| 145 | Signal Transduction | 10 | 415 | 750 | 846 |
| 146 | United Kingdom | 7 | 412 | 1028 | 805 |
| 147 | Radiation Oncology | 11 | 409 | 118 | 97 |
| 148 | Molecular Genetics | 14 | 407 | 826 | 1049 |
| 149 | Chemotherapy | 6 | 386 | 940 | 610 |
| 150 | Chronic diseases | 11 | 384 | 279 | 379 |
| 151 | Gene expression regulation | 7 | 380 | 585 | 522 |
| 152 | Meteorology | 1 | 377 | 3234 | 1323 |
| 153 | cytokines | 4 | 352 | 1248 | 701 |
| 154 | Aging | 5 | 339 | 2260 | 1376 |
| 155 | pain | 7 | 332 | 842 | 740 |
| 156 | Growth factors | 6 | 327 | 127 | 194 |
| 157 | Developmental Genetics | 3 | 326 | 510 | 479 |
| 157 | Proteome | 7 | 326 | 785 | 728 |
| 157 | viral genetics | 3 | 326 | 312 | 381 |
| 160 | Sports Medicine | 2 | 324 | 2894 | 1095 |
| 161 | software | 4 | 321 | 899 | 524 |
| 162 | Antioxidants | 6 | 319 | 514 | 559 |
| 163 | Rheumatology | 2 | 315 | 1408 | 697 |
| 163 | arthritis | 2 | 315 | 1381 | 846 |
| 165 | Vaccines | 7 | 309 | 1248 | 1026 |
| 166 | Immunochemistry | 20 | 306 | 221 | 423 |
| 167 | Growth | 3 | 297 | 1137 | 913 |
| 168 | Otolaryngology | 7 | 294 | 303 | 212 |
| 169 | Drug delivery systems | 2 | 292 | 1906 | 1011 |
| 170 | Pediatrics | 7 | 287 | 1527 | 1524 |
| 171 | Cytokine | 3 | 286 | 396 | 272 |
| 172 | Histology | 13 | 284 | 876 | 1141 |
| 172 | Screening | 7 | 284 | 60 | 41 |
| 172 | gene transfer | 8 | 284 | 82 | 89 |
| 172 | genetic transformation | 8 | 284 | 82 | 89 |
| 176 | Obesity | 5 | 281 | 1552 | 1329 |
| 177 | preventive medicine | 6 | 280 | 850 | 734 |
| 178 | Lymphoma | 13 | 279 | 105 | 79 |
| 178 | Multiple Myeloma | 13 | 279 | 96 | 67 |
| 180 | Dietetics | 2 | 275 | 753 | 264 |
| 180 | Drug design | 8 | 275 | 1007 | 984 |
| 182 | Organic Chemistry | 7 | 265 | 2261 | 1877 |
| 182 | X-rays | 10 | 265 | 237 | 166 |
| 184 | Electron Microscopy | 28 | 263 | 33 | 144 |
| 185 | Bioorganic chemistry | 6 | 257 | 2151 | 1851 |
| 186 | Hypertension | 2 | 256 | 1800 | 1339 |
| 187 | Anatomy | 3 | 252 | 1922 | 1160 |
| 188 | Zoology | 9 | 249 | 1623 | 1260 |
| 189 | Microscopy | 15 | 246 | 603 | 674 |
| 190 | Biocompatible Materials | 6 | 233 | 2765 | 2861 |
| 191 | Computer Vision | 3 | 230 | 1131 | 808 |
| 192 | Toxicology | 7 | 223 | 3415 | 3339 |
| 193 | Nanotechnology | 5 | 221 | 3862 | 3448 |
| 194 | Clinical Trials | 9 | 215 | 236 | 247 |
| 194 | Research Design | 9 | 215 | 593 | 747 |
| 196 | Pharmacogenetics | 10 | 211 | 464 | 706 |
| 196 | Brachytherapy | 7 | 211 | 114 | 69 |
| 198 | Image Processing | 2 | 207 | 2637 | 1520 |
| 199 | Respiration | 2 | 205 | 1729 | 1037 |
| 200 | Proteomics | 2 | 204 | 1402 | 885 |
| 200 | Autoimmunity | 6 | 204 | 488 | 614 |
| 202 | Computational Biology | 7 | 202 | 2027 | 1941 |
| 203 | drug evaluation | 3 | 197 | 1445 | 848 |
| 204 | Biopharmaceutics | 5 | 194 | 905 | 841 |
| 205 | Health promotion | 4 | 192 | 1212 | 882 |
| 206 | Radiography | 3 | 190 | 792 | 741 |
| 207 | cell interaction | 7 | 189 | 751 | 960 |
| 208 | miniaturization | 4 | 184 | 1619 | 1514 |
| 209 | Brain | 4 | 175 | 2205 | 1994 |
| 210 | Immunogenetics | 7 | 174 | 416 | 474 |
| 211 | Bioengineering | 7 | 173 | 3056 | 3765 |
| 212 | Nuclear Engineering | 3 | 169 | 1689 | 844 |
| 213 | mycoses | 1 | 167 | 1381 | 871 |
| 213 | Bacterial infections | 1 | 167 | 1494 | 901 |
| 215 | Molecular Microbiology | 3 | 165 | 853 | 917 |
| 216 | Clinical Immunology | 5 | 164 | 975 | 961 |
| 216 | Electrophysiology | 2 | 164 | 1293 | 639 |
| 218 | Steroids | 7 | 154 | 605 | 742 |
| 219 | proteins | 9 | 151 | 1291 | 1664 |
| 220 | Oxidative stress | 3 | 150 | 1248 | 1252 |
| 220 | Energy metabolism | 1 | 150 | 896 | 542 |
| 220 | cell membrane | 1 | 150 | 856 | 539 |
| 223 | Autoimmune diseases | 6 | 148 | 424 | 594 |
| 224 | Bioinformatics | 5 | 142 | 1743 | 1760 |
| 225 | cell proliferation | 21 | 136 | 44 | 240 |
| 226 | tomography | 5 | 135 | 267 | 212 |
| 227 | Autoantibodies | 5 | 133 | 417 | 565 |
| 227 | Spectrum analysis | 6 | 133 | 3129 | 3143 |
| 229 | Clinical Pharmacology | 8 | 132 | 888 | 1143 |
| 230 | Travel | 1 | 129 | 1504 | 511 |
| 230 | Familial diseases | 8 | 129 | 76 | 130 |
| 232 | Cell cycle | 18 | 126 | 48 | 233 |
| 233 | Neurotoxicology | 1 | 124 | 1016 | 526 |
| 234 | genome | 25 | 121 | 429 | 1782 |
| 235 | Radiation Protection | 29 | 120 | 90 | 259 |
| 236 | Histochemistry | 5 | 119 | 829 | 844 |
| 236 | occupational diseases | 7 | 119 | 495 | 797 |
| 238 | pain management | 4 | 118 | 549 | 501 |
| 239 | Mass Spectrometry | 5 | 117 | 948 | 974 |
| 240 | RNA | 2 | 115 | 628 | 568 |
| 241 | Medical Technology | 7 | 114 | 1128 | 1582 |
| 241 | Combinatorial chemistry | 2 | 114 | 1143 | 905 |
| 243 | Health Education | 4 | 109 | 1591 | 1458 |
| 243 | Child | 7 | 109 | 1550 | 1918 |
| 243 | Mutagenesis | 3 | 109 | 453 | 306 |
| 246 | Brain damage | 3 | 108 | 400 | 379 |
| 247 | Molecular Pharmacology | 3 | 107 | 822 | 912 |
| 248 | risk factors | 3 | 100 | 697 | 701 |
| 248 | Cardiovascular diseases | 3 | 100 | 1665 | 1430 |
| 250 | biochemical markers | 4 | 99 | 751 | 717 |
| 251 | Technology | 4 | 96 | 3810 | 3598 |
| 252 | biological factors | 3 | 95 | 2018 | 1823 |
| 253 | Psychology | 5 | 93 | 3902 | 4207 |
| 253 | Public Policy | 3 | 93 | 1754 | 1706 |
| 253 | medical education | 3 | 93 | 1758 | 1424 |
| 253 | health planning | 3 | 93 | 2238 | 1831 |
| 253 | Cell communication | 3 | 93 | 872 | 980 |
| 258 | Synaptic Transmission | 1 | 92 | 821 | 530 |
| 259 | Computer Science | 1 | 88 | 3507 | 1616 |
| 260 | environmental exposure | 7 | 87 | 1218 | 2115 |
| 261 | Photochemistry | 5 | 86 | 1415 | 1727 |
| 262 | Food Microbiology | 3 | 85 | 1230 | 1606 |
| 262 | food technology | 3 | 85 | 2497 | 2641 |
| 262 | Food | 3 | 85 | 3167 | 3329 |
| 265 | Antiviral agents | 2 | 84 | 415 | 343 |
| 265 | blood transfusion | 2 | 84 | 877 | 655 |
| 267 | Genetic markers | 3 | 83 | 249 | 216 |
| 268 | Occupational Health | 6 | 80 | 714 | 897 |
| 269 | Analytical Chemistry | 2 | 79 | 4835 | 4244 |
| 269 | Respiratory system | 1 | 79 | 1009 | 715 |
| 271 | Culture techniques | 4 | 77 | 242 | 283 |
| 272 | DNS | 5 | 76 | 345 | 606 |
| 272 | DNA | 5 | 76 | 429 | 615 |
| 274 | biological evolution | 1 | 74 | 3031 | 2501 |
| 274 | Genes | 4 | 74 | 1017 | 1287 |
| 276 | Computational Chemistry | 2 | 69 | 856 | 783 |
| 277 | Electrophoresis | 3 | 68 | 1693 | 1826 |
| 278 | Surface Chemistry | 2 | 66 | 4007 | 3761 |
| 278 | Inflammation | 1 | 66 | 2033 | 1741 |
| 278 | cell adhesion molecules | 1 | 66 | 1002 | 806 |
| 281 | Biochemical Engineering | 2 | 63 | 3636 | 4219 |
| 282 | Developmental Disabilities | 2 | 62 | 1141 | 1274 |
| 282 | Colloids | 1 | 62 | 4638 | 3971 |
| 284 | heredity | 3 | 61 | 675 | 746 |
| 285 | Health Services Research | 3 | 60 | 1747 | 1912 |
| 285 | Primary health care | 3 | 60 | 1773 | 1926 |
| 285 | biopolymers | 24 | 60 | 355 | 1423 |
| 288 | radiation monitoring | 3 | 59 | 616 | 402 |
| 288 | Microstructure | 4 | 59 | 725 | 755 |
| 290 | Spine | 1 | 58 | 1059 | 938 |
| 291 | Genetic epidemiology | 2 | 53 | 344 | 378 |
| 291 | Radiation dosimetry | 2 | 53 | 657 | 345 |
| 293 | industrial hygiene | 2 | 52 | 1436 | 990 |
| 294 | Geriatrics | 2 | 51 | 3483 | 3238 |
| 295 | Neurobiology | 3 | 50 | 1641 | 2350 |
| 295 | Pediatric Hematology | 4 | 50 | 338 | 317 |
| 295 | Microelectronics | 1 | 50 | 2590 | 2154 |
| 295 | Chromatography | 2 | 50 | 2054 | 1995 |
| 295 | Chromatographic analysis | 2 | 50 | 2376 | 2128 |
| 300 | Lipids | 2 | 49 | 1624 | 1966 |
| 301 | nucleotides | 10 | 47 | 145 | 278 |
| 301 | Soviet Union | 7 | 47 | 384 | 490 |
| 303 | embryonic development | 1 | 46 | 736 | 638 |
| 303 | Sarcopenia | 2 | 46 | 517 | 796 |
| 303 | Muscles | 2 | 46 | 1017 | 1297 |
| 306 | drug resistance | 3 | 45 | 737 | 1180 |
| 306 | Radiotherapy | 22 | 45 | 80 | 273 |
| 306 | Child Development | 1 | 45 | 2855 | 2445 |
| 306 | Photobiology | 1 | 45 | 2290 | 1902 |
| 310 | Industrial Microbiology | 1 | 44 | 3006 | 2923 |
| 310 | Animal breeding | 1 | 44 | 1219 | 976 |
| 310 | Gerontology | 1 | 44 | 3093 | 2147 |
| 310 | United States | 2 | 44 | 6640 | 5992 |
| 310 | enzymes | 4 | 44 | 1321 | 2137 |
| 310 | Breeding | 1 | 44 | 1852 | 1600 |
| 316 | Palliative Care | 2 | 42 | 1067 | 1035 |
| 316 | Chemical analysis | 1 | 42 | 1855 | 1633 |
| 318 | Polymers | 1 | 41 | 5557 | 4717 |
| 318 | Bioinorganic chemistry | 2 | 41 | 1655 | 1832 |
| 318 | Light | 4 | 41 | 806 | 1472 |
| 321 | Genetic Counseling | 2 | 40 | 332 | 345 |
| 321 | Geriatric Psychiatry | 1 | 40 | 1792 | 1561 |
| 323 | Pharmacogenomics | 1 | 39 | 617 | 615 |
| 323 | Psychopharmacology | 1 | 39 | 2238 | 2138 |
| 325 | hospice care | 1 | 37 | 976 | 730 |
| 325 | Nanostructures | 1 | 37 | 3342 | 2985 |
| 325 | Materials | 1 | 37 | 7092 | 6216 |
| 328 | Gene expression | 3 | 36 | 283 | 506 |
| 328 | nuclear magnetic resonance | 4 | 36 | 917 | 1202 |
| 328 | Mycology | 1 | 36 | 2419 | 2132 |
| 328 | nuclear magnetic resonance spectroscopy | 4 | 36 | 681 | 895 |
| 332 | Randomized Controlled Trials | 3 | 35 | 1147 | 1486 |
| 332 | Information Science | 1 | 35 | 3821 | 3300 |
| 334 | Oral Medicine | 1 | 34 | 1126 | 805 |
| 334 | Mitochondria | 1 | 34 | 516 | 580 |
| 336 | Bone marrow transplantation | 7 | 33 | 4 | 9 |
| 336 | Ultrasonics | 3 | 33 | 1233 | 2045 |
| 336 | Ultrasonic Imaging | 3 | 33 | 513 | 839 |
| 336 | Tropical Medicine | 4 | 33 | 1671 | 2576 |
| 336 | Ultrasound | 3 | 33 | 739 | 1173 |
| 336 | Flow cytometry | 2 | 33 | 559 | 762 |
| 342 | Biosensors | 1 | 32 | 1990 | 2434 |
| 342 | Erectile dysfunction | 1 | 32 | 485 | 426 |
| 342 | Bioelectronics | 1 | 32 | 1754 | 2225 |
| 345 | Pharmaceutical Technology | 7 | 31 | 1025 | 2394 |
| 345 | Contraception | 1 | 31 | 980 | 984 |
| 345 | Reproductive health | 1 | 31 | 1421 | 1348 |
| 345 | Birth control | 1 | 31 | 875 | 892 |
| 349 | Systems Biology | 2 | 30 | 1970 | 2670 |
| 349 | Process Control | 1 | 30 | 1406 | 1647 |
| 349 | cosmic rays | 1 | 30 | 812 | 647 |
| 349 | Production Management | 1 | 30 | 1649 | 1818 |
| 353 | peptides | 1 | 29 | 1626 | 1332 |
| 353 | Quality of life | 1 | 29 | 2480 | 2644 |
| 353 | Endocrine system | 2 | 29 | 942 | 525 |
| 356 | Health insurance | 1 | 27 | 802 | 725 |
| 357 | Botany | 4 | 25 | 3300 | 5020 |
| 357 | Diagnosis | 3 | 25 | 691 | 1132 |
| 357 | Fluorescence spectroscopy | 1 | 25 | 489 | 505 |
| 357 | Molecular Spectroscopy | 1 | 25 | 2585 | 2614 |
| 357 | Radioisotopes | 3 | 25 | 1198 | 1584 |
| 357 | drug addiction | 1 | 25 | 1672 | 1858 |
| 357 | alcoholism | 1 | 25 | 2177 | 2281 |
| 364 | Andrology | 2 | 24 | 827 | 1161 |
| 364 | Photonics | 1 | 24 | 2705 | 2778 |
| 364 | Pharmacokinetics | 3 | 24 | 1006 | 1762 |
| 367 | Adolescent Medicine | 1 | 23 | 1011 | 1271 |
| 367 | Radiation effects | 4 | 23 | 507 | 1305 |
| 369 | Melanoma | 2 | 22 | 275 | 541 |
| 369 | glycoproteins | 2 | 22 | 589 | 987 |
| 369 | Glycoconjugates | 2 | 22 | 589 | 987 |
| 369 | biomedicine | 2 | 22 | 1244 | 1839 |
| 369 | glycolipids | 2 | 22 | 589 | 987 |
| 374 | monitoring | 4 | 21 | 212 | 477 |
| 375 | Thrombosis | 2 | 20 | 1203 | 1835 |
| 375 | Wound healing | 1 | 20 | 56 | 140 |
| 375 | Environmental monitoring | 2 | 20 | 4338 | 6023 |
| 375 | wound care | 1 | 20 | 56 | 140 |
| 375 | Fibrosis | 1 | 20 | 56 | 140 |
| 375 | nanoscience | 1 | 20 | 3984 | 4210 |
| 375 | Informatics | 1 | 20 | 1423 | 1553 |
| 375 | Digestive system diseases | 2 | 20 | 1117 | 1688 |
| 383 | clay | 1 | 19 | 1322 | 1694 |
| 383 | Condensed Matter | 2 | 19 | 3557 | 3923 |
| 385 | DNA methylation | 1 | 18 | 553 | 787 |
| 385 | Women's health | 1 | 18 | 2259 | 2465 |
| 385 | Menopause | 1 | 18 | 572 | 681 |
| 388 | Histocompatibility Testing | 3 | 17 | 479 | 1075 |
| 388 | Oligosaccharide | 1 | 17 | 569 | 810 |
| 388 | Carbohydrates | 1 | 17 | 788 | 997 |
| 391 | Computer Graphics | 1 | 16 | 2597 | 2774 |
| 391 | Neuropsychology | 1 | 16 | 3304 | 3767 |
| 391 | Neurophysiology | 1 | 16 | 3862 | 4566 |
| 391 | Patient education | 1 | 16 | 971 | 1371 |
| 391 | counseling | 1 | 16 | 2031 | 2219 |
| 391 | disease susceptibility | 1 | 16 | 760 | 966 |
| 391 | molecular design | 1 | 16 | 513 | 641 |
| 391 | symptoms | 1 | 16 | 760 | 966 |
| 399 | Climatology | 2 | 15 | 2003 | 2988 |
| 399 | Endocrine glands | 1 | 15 | 463 | 761 |
| 399 | Genetic disorders | 1 | 15 | 783 | 990 |
| 399 | bioclimatology | 2 | 15 | 1161 | 1911 |
| 399 | Health | 1 | 15 | 3647 | 4174 |
| 399 | scientific societies | 1 | 15 | 1306 | 1602 |
| 399 | Climate | 2 | 15 | 750 | 1420 |
| 399 | weather | 2 | 15 | 715 | 1365 |
| 407 | Clinical Laboratory Science | 1 | 14 | 522 | 594 |
| 407 | prostaglandins | 3 | 14 | 443 | 924 |
| 409 | Artificial Intelligence | 1 | 13 | 5157 | 5566 |
| 409 | Hemostasis | 1 | 13 | 1193 | 1486 |
| 409 | Supramolecular chemistry | 1 | 13 | 502 | 530 |
| 409 | Biomolecules | 1 | 13 | 841 | 1205 |
| 413 | Microfabrication | 1 | 12 | 777 | 938 |
| 413 | Opioids | 3 | 12 | 58 | 156 |
| 415 | Sociology | 1 | 11 | 4713 | 5142 |
| 415 | Behavioral Genetics | 1 | 11 | 397 | 622 |
| 415 | Hematopoietic stem cell transplantation | 2 | 11 | 586 | 1152 |
| 415 | Medical Anthropology | 1 | 11 | 2007 | 2893 |
| 415 | human behavior | 1 | 11 | 3637 | 4912 |
| 415 | rehabilitation | 1 | 11 | 3525 | 4349 |
| 421 | Cell division | 3 | 10 | 579 | 1551 |
| 421 | cosmetics | 1 | 10 | 408 | 603 |
| 423 | Ecology | 2 | 9 | 6926 | 10044 |
| 423 | Microbial Ecology | 2 | 9 | 2635 | 4535 |
| 423 | Music | 1 | 9 | 1495 | 1470 |
| 423 | voice | 1 | 9 | 778 | 1003 |
| 423 | Africa | 1 | 9 | 2790 | 2917 |
| 428 | Ophthalmology | 1 | 8 | 2523 | 3343 |
| 428 | Optics | 7 | 8 | 3463 | 5869 |
| 428 | behavioral medicine | 1 | 8 | 2137 | 3202 |
| 428 | Vision | 1 | 8 | 986 | 1382 |
| 428 | Evolution | 1 | 8 | 2797 | 3646 |
| 428 | synthesis | 1 | 8 | 1701 | 1973 |
| 428 | Gastrointestinal diseases | 1 | 8 | 1307 | 1756 |
| 435 | Photography | 6 | 7 | 1940 | 2530 |
| 435 | Laser therapy | 1 | 7 | 850 | 1047 |
| 435 | blood substitutes | 1 | 7 | 149 | 221 |
| 435 | artificial cells | 1 | 7 | 194 | 259 |
| 435 | eugenics | 1 | 7 | 1028 | 1543 |
| 440 | Psychiatry | 1 | 6 | 6073 | 7602 |
| 440 | Clinical Psychology | 1 | 6 | 2047 | 2905 |
| 440 | Health Physics | 1 | 6 | 389 | 511 |
| 443 | Animal Nutrition | 1 | 5 | 937 | 1324 |
| 443 | Hospitals | 1 | 5 | 1111 | 1706 |
| 443 | Oligosaccharides | 1 | 5 | 494 | 862 |
| 443 | human development | 1 | 5 | 1272 | 1881 |
| 443 | pharmaceutical industry | 1 | 5 | 1113 | 1663 |
| 448 | Molecular recognition | 1 | 4 | 477 | 871 |
| 448 | Electrochemical Analysis | 1 | 4 | 2221 | 2959 |
| 448 | plant molecular biology | 1 | 4 | 2146 | 3102 |
| 448 | Plants | 1 | 4 | 2993 | 3882 |
| 452 | Hematopoiesis | 1 | 3 | 133 | 249 |
| 452 | Physical Chemistry | 1 | 3 | 3242 | 4293 |
| 452 | Organ transplantation | 1 | 3 | 591 | 915 |
| 455 | General Surgery | 1 | 2 | 1026 | 1564 |
| 455 | Radiopharmaceuticals | 1 | 2 | 659 | 954 |
| 455 | monoclonal antibodies | 1 | 2 | 648 | 1073 |
| 455 | North America | 1 | 2 | 1448 | 2205 |
| 459 | Mathematics | 1 | 1 | 7131 | 8649 |
| 459 | Medical Imaging | 1 | 1 | 491 | 708 |
| 459 | Magnetic Resonance Imaging | 1 | 1 | 889 | 1452 |
| 462 | Nuclear Energy | 1 | 0 | 1790 | 2588 |
| 462 | Information Systems | 1 | 0 | 2465 | 4005 |
| 462 | Infection control | 1 | 0 | 1169 | 2142 |
| 462 | Sexual health | 1 | 0 | 1259 | 1858 |
| 462 | Parasitology | 2 | 0 | 2758 | 4866 |
