| 1 | Science | 144 | 38.6K | 1923 | 720 |
| 2 | Biology | 136 | 38.2K | 1832 | 711 |
| 3 | Physics | 82 | 35.2K | 2887 | 874 |
| 4 | Natural history | 40 | 31.5K | 1192 | 466 |
| 5 | Biochemistry | 494 | 26.1K | 836 | 645 |
| 6 | Cell Biology | 47 | 21.4K | 1297 | 388 |
| 7 | Cytology | 59 | 21.2K | 1212 | 398 |
| 8 | Pharmaceutical Chemistry | 343 | 19.5K | 150 | 86 |
| 9 | Virology | 22 | 17.0K | 1447 | 352 |
| 10 | Research | 188 | 11.9K | 1211 | 733 |
| 11 | Metabolism | 153 | 11.6K | 316 | 249 |
| 12 | Medicine | 128 | 11.4K | 2142 | 1231 |
| 13 | Pharmacy | 201 | 11.2K | 92 | 36 |
| 14 | Hematology | 264 | 11.1K | 311 | 300 |
| 15 | Pharmacology | 238 | 11.0K | 585 | 441 |
| 16 | Immunology | 104 | 9.7K | 769 | 513 |
| 17 | Clinical Chemistry | 129 | 9.2K | 291 | 127 |
| 18 | Endocrinology | 69 | 9.1K | 723 | 364 |
| 19 | Chemistry | 101 | 9.1K | 2493 | 1532 |
| 20 | Molecular Biology | 98 | 8.5K | 1919 | 1287 |
| 21 | Neurology | 83 | 8.1K | 1349 | 917 |
| 22 | Human genetics | 29 | 8.0K | 953 | 735 |
| 23 | drug therapy | 165 | 6.8K | 176 | 148 |
| 24 | drug development | 32 | 6.7K | 159 | 72 |
| 25 | Medical innovations | 11 | 6.4K | 519 | 78 |
| 26 | Metabolic diseases | 45 | 6.2K | 686 | 367 |
| 27 | Drug design | 31 | 5.6K | 355 | 26 |
| 28 | Organic Chemistry | 210 | 5.3K | 200 | 296 |
| 29 | Bones | 91 | 4.9K | 47 | 34 |
| 30 | Biotechnology | 94 | 4.6K | 1250 | 1162 |
| 31 | Biophysics | 61 | 3.9K | 1711 | 1056 |
| 32 | Bioorganic chemistry | 161 | 3.9K | 179 | 334 |
| 33 | Drug delivery systems | 59 | 3.7K | 129 | 114 |
| 34 | Microbiology | 62 | 3.7K | 1929 | 1662 |
| 35 | Therapeutics | 83 | 3.7K | 204 | 221 |
| 36 | Cancer | 81 | 3.6K | 823 | 833 |
| 37 | Neurophysiology | 24 | 3.5K | 1273 | 679 |
| 38 | Bioengineering | 56 | 3.0K | 1080 | 1034 |
| 39 | Combinatorial chemistry | 7 | 3.0K | 619 | 67 |
| 40 | Immunity | 15 | 3.0K | 1041 | 704 |
| 41 | Analytical Chemistry | 52 | 3.0K | 1380 | 875 |
| 42 | Toxicology | 83 | 2.8K | 929 | 949 |
| 43 | Gene library | 1 | 2.7K | 216 | 1 |
| 44 | Electrophoresis | 33 | 2.7K | 383 | 96 |
| 45 | proteins | 72 | 2.5K | 293 | 301 |
| 46 | Pharmaceutical Technology | 59 | 2.5K | 156 | 137 |
| 47 | Dermatology | 35 | 2.4K | 561 | 271 |
| 48 | Cardiovascular system | 32 | 2.3K | 495 | 533 |
| 49 | Neurochemistry | 17 | 2.3K | 1230 | 581 |
| 50 | Medical Laboratory Science | 29 | 2.3K | 601 | 302 |
| 51 | Neurons | 5 | 2.2K | 631 | 426 |
| 52 | Genetics | 21 | 2.1K | 1907 | 1335 |
| 53 | Antigens | 25 | 2.0K | 235 | 95 |
| 54 | Antibodies | 24 | 2.0K | 149 | 49 |
| 55 | Analytical Biochemistry | 43 | 1.9K | 264 | 208 |
| 56 | Stem cells | 26 | 1.9K | 542 | 355 |
| 57 | Oncogenes | 17 | 1.9K | 560 | 424 |
| 58 | Biopharmaceutics | 57 | 1.9K | 82 | 109 |
| 59 | Biochemical Engineering | 21 | 1.8K | 1467 | 1312 |
| 60 | Informatics | 5 | 1.7K | 775 | 82 |
| 61 | Immunotherapy | 25 | 1.7K | 609 | 550 |
| 62 | Cell differentiation | 19 | 1.6K | 799 | 696 |
| 63 | Technology | 43 | 1.6K | 1212 | 854 |
| 64 | protein | 49 | 1.6K | 193 | 263 |
| 65 | Genetic engineering | 32 | 1.6K | 582 | 549 |
| 66 | Chromatographic analysis | 22 | 1.5K | 699 | 193 |
| 67 | Chromatography | 21 | 1.5K | 585 | 149 |
| 68 | Genetic regulation | 24 | 1.5K | 349 | 380 |
| 68 | drugs | 89 | 1.5K | 202 | 384 |
| 70 | Mass Spectrometry | 31 | 1.4K | 328 | 227 |
| 71 | Pathology | 13 | 1.4K | 1445 | 802 |
| 72 | monoclonal antibodies | 29 | 1.4K | 12 | 6 |
| 73 | Spectrum analysis | 19 | 1.4K | 2415 | 1519 |
| 74 | Nervous system | 6 | 1.3K | 2215 | 911 |
| 75 | Allergy | 8 | 1.3K | 967 | 625 |
| 76 | arthritis | 29 | 1.3K | 418 | 505 |
| 77 | Neurobiology | 10 | 1.3K | 1202 | 741 |
| 78 | Chemotherapy | 35 | 1.2K | 323 | 296 |
| 79 | Developmental Biology | 10 | 1.2K | 1330 | 883 |
| 80 | Pediatric Neurology | 3 | 1.2K | 1254 | 548 |
| 81 | Molecular Pharmacology | 22 | 1.1K | 199 | 194 |
| 82 | Hypertension | 10 | 1.1K | 1123 | 820 |
| 83 | Leukemia | 21 | 1.1K | 492 | 494 |
| 84 | Chemical Engineering | 59 | 1.1K | 1307 | 1951 |
| 85 | Cardiovascular diseases | 20 | 1.1K | 676 | 415 |
| 86 | Osteoporosis | 22 | 1.0K | 31 | 31 |
| 87 | Genetic therapy | 26 | 1.0K | 359 | 394 |
| 88 | Pharmacogenetics | 26 | 1.0K | 253 | 296 |
| 89 | Gene expression regulation | 15 | 997 | 399 | 353 |
| 90 | Chemical processes | 51 | 993 | 41 | 59 |
| 91 | Materials | 3 | 977 | 6495 | 2549 |
| 92 | Cytogenetics | 4 | 949 | 1701 | 766 |
| 93 | Kidney diseases | 15 | 926 | 430 | 238 |
| 94 | Crystal growth | 10 | 919 | 602 | 202 |
| 95 | Bone diseases | 20 | 897 | 77 | 185 |
| 96 | Anatomy | 6 | 876 | 1724 | 745 |
| 96 | Embryology | 6 | 876 | 1365 | 771 |
| 98 | Industrial Microbiology | 6 | 857 | 1651 | 746 |
| 99 | Immune system | 5 | 851 | 986 | 751 |
| 100 | Critical Care | 3 | 804 | 2058 | 955 |
| 100 | Critical Care Medicine | 3 | 804 | 1859 | 952 |
| 102 | Diabetes | 14 | 786 | 1291 | 1239 |
| 103 | calcification | 12 | 782 | 244 | 160 |
| 104 | Pharmacokinetics | 34 | 778 | 117 | 205 |
| 105 | Clinical Pharmacology | 44 | 765 | 263 | 439 |
| 106 | risk factors | 4 | 760 | 785 | 202 |
| 106 | Growth | 3 | 760 | 1391 | 711 |
| 108 | peptides | 17 | 758 | 248 | 77 |
| 109 | Nephrology | 8 | 739 | 385 | 231 |
| 110 | Brain | 8 | 735 | 1990 | 1282 |
| 111 | Diagnostic Imaging | 11 | 722 | 1275 | 739 |
| 111 | Optical materials | 2 | 722 | 3384 | 1281 |
| 113 | Obesity | 12 | 709 | 1213 | 990 |
| 114 | Recombinant DNA | 12 | 708 | 830 | 486 |
| 114 | pain | 16 | 708 | 660 | 632 |
| 116 | Molecular cloning | 11 | 706 | 815 | 449 |
| 116 | Genetic recombination | 11 | 706 | 805 | 443 |
| 118 | Liver diseases | 4 | 703 | 1524 | 947 |
| 119 | Flow cytometry | 8 | 691 | 212 | 63 |
| 120 | Rheumatology | 25 | 690 | 401 | 603 |
| 121 | Oncology | 13 | 673 | 1247 | 1616 |
| 122 | gene therapy | 17 | 650 | 445 | 553 |
| 123 | Biometrics | 35 | 646 | 272 | 364 |
| 124 | Statistics | 39 | 645 | 853 | 908 |
| 125 | Physical Chemistry | 17 | 631 | 1146 | 1055 |
| 125 | Research Design | 48 | 631 | 174 | 445 |
| 127 | glycoproteins | 3 | 620 | 571 | 166 |
| 127 | Glycoconjugates | 3 | 620 | 571 | 166 |
| 127 | Oligosaccharide | 3 | 620 | 353 | 112 |
| 127 | Carbohydrates | 3 | 620 | 524 | 144 |
| 127 | glycolipids | 3 | 620 | 571 | 166 |
| 132 | Medical genetics | 8 | 613 | 2274 | 1994 |
| 133 | Developmental Genetics | 1 | 598 | 1013 | 457 |
| 133 | viral genetics | 1 | 598 | 626 | 347 |
| 135 | Quality of life | 17 | 559 | 523 | 610 |
| 135 | genome | 8 | 559 | 1160 | 1114 |
| 137 | Urology | 7 | 524 | 1482 | 956 |
| 138 | Nanotechnology | 6 | 523 | 4405 | 2954 |
| 139 | biological factors | 10 | 514 | 1187 | 778 |
| 140 | Molecular structure | 5 | 501 | 2431 | 1131 |
| 141 | Lipids | 9 | 498 | 860 | 739 |
| 142 | toxicity testing | 26 | 493 | 98 | 198 |
| 143 | Visual Perception | 12 | 490 | 1010 | 864 |
| 143 | Memory | 12 | 490 | 1123 | 1001 |
| 143 | Attention | 12 | 490 | 1046 | 897 |
| 143 | Perception | 12 | 490 | 1158 | 979 |
| 147 | drug evaluation | 47 | 482 | 108 | 413 |
| 148 | Physiology | 16 | 480 | 2384 | 2470 |
| 149 | Geriatric Oncology | 5 | 465 | 486 | 237 |
| 150 | Radiobiology | 13 | 456 | 829 | 836 |
| 151 | Kinetics | 14 | 454 | 143 | 90 |
| 151 | cloning | 9 | 454 | 381 | 509 |
| 153 | Immunopathology | 10 | 437 | 902 | 778 |
| 154 | Plants | 3 | 433 | 2633 | 1274 |
| 155 | Botany | 3 | 427 | 4410 | 2453 |
| 156 | United Kingdom | 7 | 426 | 1267 | 973 |
| 157 | Reproductive toxicology | 12 | 417 | 162 | 190 |
| 158 | Immunochemistry | 6 | 407 | 833 | 391 |
| 159 | Clinical Trials | 29 | 404 | 107 | 187 |
| 160 | Systems Biology | 13 | 396 | 812 | 749 |
| 160 | Proteome | 8 | 396 | 849 | 786 |
| 162 | Diabetes mellitus | 5 | 378 | 2092 | 1695 |
| 163 | enzymes | 10 | 369 | 929 | 899 |
| 164 | Biomedical Engineering | 14 | 362 | 3020 | 3086 |
| 165 | Clinical Immunology | 8 | 353 | 949 | 756 |
| 166 | Computational Biology | 8 | 348 | 2231 | 1752 |
| 167 | viruses | 7 | 347 | 1216 | 1224 |
| 168 | Developmental Toxicology | 5 | 335 | 42 | 28 |
| 168 | mutagens | 5 | 335 | 738 | 639 |
| 168 | teratogens | 5 | 335 | 42 | 28 |
| 171 | Homeostasis | 2 | 322 | 682 | 855 |
| 171 | Cell metabolism | 2 | 322 | 1054 | 896 |
| 173 | Medical Microbiology | 6 | 312 | 2096 | 2013 |
| 173 | Cell death | 6 | 312 | 1050 | 1081 |
| 175 | United States | 8 | 309 | 4242 | 3001 |
| 176 | Environment | 6 | 306 | 4578 | 4820 |
| 177 | Nutrition | 4 | 302 | 4730 | 3186 |
| 178 | Bioinformatics | 6 | 296 | 1802 | 1465 |
| 179 | Transplantation | 4 | 293 | 1320 | 1027 |
| 180 | Cytokine | 3 | 288 | 476 | 313 |
| 181 | Nanostructures | 2 | 283 | 3199 | 1577 |
| 182 | cytokines | 2 | 282 | 1959 | 920 |
| 183 | Medical Oncology | 9 | 278 | 1286 | 1491 |
| 184 | Structure-activity relationship | 5 | 273 | 319 | 190 |
| 185 | Diet | 2 | 269 | 3098 | 1806 |
| 186 | Audiology | 3 | 264 | 913 | 469 |
| 187 | Materials Science | 2 | 260 | 6093 | 3375 |
| 188 | biomedicine | 16 | 258 | 208 | 396 |
| 189 | Breeding | 3 | 257 | 1442 | 820 |
| 190 | Polymers | 8 | 247 | 3586 | 3119 |
| 191 | Histology | 12 | 241 | 1086 | 1489 |
| 192 | histological techniques | 2 | 239 | 1124 | 626 |
| 193 | Inflammation | 3 | 235 | 1528 | 1065 |
| 194 | Histochemistry | 2 | 234 | 1625 | 671 |
| 195 | Protein engineering | 8 | 230 | 119 | 174 |
| 195 | molecular design | 8 | 230 | 137 | 178 |
| 197 | Genetic Toxicology | 4 | 224 | 446 | 399 |
| 197 | Environmental Health | 14 | 224 | 3264 | 4801 |
| 199 | Autoantibodies | 4 | 220 | 590 | 507 |
| 199 | Autoimmunity | 4 | 220 | 785 | 714 |
| 199 | Autoimmune diseases | 4 | 220 | 638 | 541 |
| 202 | Proteomics | 3 | 219 | 1406 | 1032 |
| 202 | Thrombosis | 3 | 219 | 1330 | 901 |
| 202 | vascular diseases | 3 | 219 | 886 | 681 |
| 205 | Surgery | 6 | 218 | 1998 | 2145 |
| 206 | Orthopedics | 4 | 213 | 1731 | 1196 |
| 206 | cell proliferation | 4 | 213 | 328 | 185 |
| 208 | Hormones | 2 | 202 | 1890 | 1188 |
| 209 | Genomics | 7 | 195 | 2814 | 3045 |
| 210 | Interferons | 2 | 194 | 440 | 164 |
| 211 | Immunotoxicology | 11 | 187 | 66 | 95 |
| 212 | Biocompatible Materials | 4 | 186 | 3824 | 3732 |
| 213 | Child | 8 | 185 | 1840 | 1902 |
| 214 | Drug discovery | 9 | 184 | 90 | 182 |
| 215 | Hematopoiesis | 6 | 181 | 20 | 21 |
| 215 | Hematopoietic stem cell transplantation | 6 | 181 | 294 | 414 |
| 217 | plant molecular biology | 2 | 179 | 2119 | 1715 |
| 218 | Chromosome mapping | 4 | 178 | 2003 | 1901 |
| 218 | gene mapping | 4 | 178 | 2217 | 2191 |
| 220 | Process Control | 3 | 177 | 989 | 935 |
| 221 | Magnetic Resonance Spectroscopy | 12 | 174 | 712 | 848 |
| 221 | Respiration | 3 | 174 | 1821 | 1423 |
| 223 | Health Services Research | 7 | 171 | 1348 | 1324 |
| 223 | Primary health care | 7 | 171 | 1374 | 1308 |
| 225 | Psychology | 5 | 168 | 4918 | 4073 |
| 226 | Cell division | 3 | 158 | 653 | 486 |
| 227 | Marine Biology | 3 | 155 | 2958 | 2309 |
| 227 | Water pollution | 3 | 155 | 3183 | 2804 |
| 227 | Marine Pollution | 3 | 155 | 1408 | 1259 |
| 227 | nuclear magnetic resonance spectroscopy | 13 | 155 | 369 | 515 |
| 231 | Molecular Genetics | 2 | 154 | 2606 | 2050 |
| 231 | nucleic acids | 5 | 154 | 1695 | 2086 |
| 233 | Growth factors | 5 | 152 | 173 | 437 |
| 234 | Randomized Controlled Trials | 1 | 151 | 2416 | 773 |
| 235 | Epidemiology | 14 | 150 | 2266 | 3729 |
| 235 | Schizophrenia | 3 | 150 | 1263 | 1106 |
| 235 | rehabilitation | 7 | 150 | 1717 | 1973 |
| 238 | Carcinogenesis | 5 | 146 | 914 | 1144 |
| 238 | Plant breeding | 1 | 146 | 1684 | 692 |
| 238 | Transgenic plants | 1 | 146 | 1035 | 483 |
| 241 | Radiology | 2 | 145 | 2418 | 1157 |
| 242 | Colloids | 3 | 144 | 4109 | 3693 |
| 242 | cell physiology | 2 | 144 | 2156 | 1854 |
| 244 | NMR | 11 | 137 | 234 | 318 |
| 244 | magnetic resonance | 11 | 137 | 245 | 334 |
| 246 | Plant physiology | 2 | 132 | 2841 | 2313 |
| 247 | Bacteriology | 5 | 128 | 1835 | 2367 |
| 248 | Host-parasite interactions | 2 | 125 | 1848 | 1903 |
| 248 | Virulence | 2 | 125 | 1701 | 1812 |
| 250 | mutation | 4 | 124 | 647 | 780 |
| 251 | Plant Ecology | 1 | 123 | 3005 | 2020 |
| 251 | Membranes | 4 | 123 | 1775 | 2050 |
| 253 | Heart Failure | 3 | 122 | 501 | 565 |
| 254 | Data Mining | 1 | 118 | 3661 | 1852 |
| 254 | data collection | 1 | 118 | 2613 | 1339 |
| 256 | Psychopharmacology | 4 | 117 | 1672 | 1873 |
| 257 | Steroids | 1 | 115 | 1879 | 1057 |
| 258 | Lymphoma | 10 | 113 | 261 | 240 |
| 258 | Multiple Myeloma | 10 | 113 | 250 | 224 |
| 258 | Soft Condensed Matter | 1 | 113 | 1915 | 1090 |
| 258 | biopolymers | 1 | 113 | 2135 | 1218 |
| 262 | Environmental monitoring | 2 | 110 | 5314 | 4660 |
| 262 | Chromosomes | 2 | 110 | 1425 | 1222 |
| 264 | Metallurgy | 2 | 104 | 3292 | 2165 |
| 264 | Electrochemistry | 2 | 104 | 4815 | 3544 |
| 266 | Psychiatry | 4 | 103 | 4663 | 4915 |
| 267 | Health insurance | 2 | 102 | 669 | 476 |
| 268 | Ecology | 1 | 100 | 9939 | 7691 |
| 268 | Microbial Ecology | 1 | 100 | 4050 | 3291 |
| 270 | Green Chemistry | 3 | 98 | 1998 | 2301 |
| 271 | Peptide | 8 | 97 | 114 | 189 |
| 272 | Psychophysiology | 3 | 96 | 3231 | 3347 |
| 273 | Geriatrics | 3 | 95 | 3833 | 3167 |
| 273 | Aging | 2 | 95 | 4288 | 3106 |
| 275 | rare diseases | 3 | 94 | 786 | 854 |
| 276 | Health Policy | 4 | 93 | 2572 | 2675 |
| 277 | amino acids | 5 | 88 | 461 | 768 |
| 278 | Environmental Management | 1 | 87 | 5150 | 4035 |
| 279 | Europe | 5 | 84 | 3205 | 3264 |
| 280 | biochemical markers | 3 | 80 | 1018 | 931 |
| 280 | pharmaceutical industry | 6 | 80 | 416 | 585 |
| 282 | Statistical models | 3 | 78 | 120 | 107 |
| 283 | Computer-Aided Design | 3 | 75 | 1492 | 1384 |
| 284 | Food additives | 7 | 71 | 834 | 1770 |
| 284 | Chemical analysis | 3 | 71 | 1368 | 1522 |
| 286 | Pediatric Rheumatology | 4 | 70 | 220 | 294 |
| 287 | Nuclear Medicine | 5 | 65 | 999 | 1339 |
| 288 | Neuropsychology | 2 | 64 | 3195 | 3035 |
| 288 | Immunohistochemistry | 2 | 64 | 300 | 193 |
| 290 | Vaccines | 2 | 63 | 2760 | 2691 |
| 291 | health behavior | 2 | 61 | 1446 | 1397 |
| 292 | Long-Term Care | 3 | 58 | 636 | 953 |
| 292 | Long-term care facilities | 3 | 58 | 629 | 946 |
| 292 | animals | 2 | 58 | 1892 | 1470 |
| 295 | Immunogenetics | 2 | 55 | 1128 | 1141 |
| 295 | nuclear magnetic resonance | 4 | 55 | 1142 | 1337 |
| 295 | Child Development | 1 | 55 | 3550 | 2826 |
| 295 | Developmental Disabilities | 1 | 55 | 1850 | 1626 |
| 295 | Cell cycle | 1 | 55 | 695 | 509 |
| 300 | Food | 1 | 53 | 5459 | 4554 |
| 300 | feeding behavior | 1 | 53 | 1435 | 1246 |
| 300 | polymerization | 3 | 53 | 4318 | 4446 |
| 300 | Appetite | 1 | 53 | 1290 | 1130 |
| 300 | Aquaculture | 3 | 53 | 1705 | 1904 |
| 305 | miniaturization | 2 | 52 | 2668 | 2976 |
| 306 | Genetic markers | 2 | 51 | 407 | 410 |
| 307 | Health Education | 2 | 50 | 2888 | 2697 |
| 307 | behavioral medicine | 2 | 50 | 1987 | 2468 |
| 309 | Health | 1 | 49 | 4659 | 3507 |
| 309 | rural health | 1 | 49 | 354 | 289 |
| 311 | Spine | 1 | 48 | 1320 | 1260 |
| 312 | Genetic Research | 2 | 47 | 250 | 297 |
| 313 | Asthma | 1 | 46 | 1483 | 1089 |
| 313 | Microelectronics | 1 | 46 | 3079 | 2651 |
| 313 | Nanostructured Materials | 1 | 46 | 4872 | 4280 |
| 313 | Nanoparticles | 1 | 46 | 3347 | 2885 |
| 317 | Computational Chemistry | 2 | 45 | 1015 | 1097 |
| 317 | Multiphase Flow | 1 | 45 | 728 | 641 |
| 319 | Ophthalmology | 1 | 44 | 3130 | 2722 |
| 319 | Geriatric Pharmacology | 4 | 44 | 286 | 609 |
| 319 | Elderly | 4 | 44 | 1354 | 1199 |
| 319 | older people | 4 | 44 | 1759 | 1912 |
| 323 | Pediatric Dermatology | 1 | 42 | 945 | 640 |
| 323 | Radioisotopes | 3 | 42 | 1498 | 1526 |
| 323 | Adolescent | 1 | 42 | 4174 | 3114 |
| 326 | human behavior | 1 | 38 | 4466 | 4717 |
| 326 | health services | 2 | 38 | 1657 | 1839 |
| 328 | Functional Genomics | 1 | 37 | 626 | 753 |
| 329 | Signal Transduction | 3 | 35 | 1714 | 2681 |
| 329 | Organometallic compounds | 4 | 35 | 1297 | 1890 |
| 329 | nanoscience | 1 | 35 | 4829 | 4549 |
| 332 | Public Health | 5 | 34 | 6055 | 9242 |
| 333 | Radiation Oncology | 1 | 33 | 755 | 765 |
| 334 | Environmental Toxicology | 2 | 32 | 3475 | 4681 |
| 334 | Patient education | 1 | 32 | 1250 | 1371 |
| 334 | counseling | 1 | 32 | 2574 | 2179 |
| 337 | Surface Chemistry | 2 | 31 | 4790 | 5558 |
| 337 | Probiotics | 1 | 31 | 497 | 473 |
| 339 | Neuromuscular diseases | 1 | 30 | 1318 | 1354 |
| 339 | Muscles | 1 | 30 | 1750 | 1874 |
| 341 | Andrology | 2 | 29 | 973 | 1292 |
| 341 | Biomarkers | 1 | 29 | 1039 | 922 |
| 341 | carcinogens | 1 | 29 | 1987 | 2212 |
| 341 | Microorganisms | 1 | 29 | 2267 | 2681 |
| 345 | Medical Technology | 3 | 28 | 2261 | 3620 |
| 345 | Cardiovascular Pharmacology | 1 | 28 | 683 | 707 |
| 345 | Extracellular matrix | 1 | 28 | 549 | 764 |
| 345 | Women's health | 1 | 28 | 2838 | 2559 |
| 345 | collagen | 1 | 28 | 569 | 778 |
| 350 | Physical organic chemistry | 2 | 27 | 1928 | 2271 |
| 350 | Synapses | 1 | 27 | 580 | 676 |
| 352 | Cardiac electrophysiology | 2 | 26 | 363 | 600 |
| 352 | Electrophysiology | 2 | 26 | 1647 | 1923 |
| 352 | arrhythmia | 2 | 26 | 363 | 600 |
| 355 | Bipolar Disorder | 1 | 25 | 717 | 833 |
| 355 | Cell surface receptors | 2 | 25 | 187 | 307 |
| 357 | Forensic Genetics | 3 | 24 | 267 | 579 |
| 357 | Androgens | 1 | 24 | 503 | 656 |
| 357 | Microscopy | 2 | 24 | 2518 | 2697 |
| 360 | Neurosurgery | 1 | 23 | 1978 | 2181 |
| 360 | Molecular Imaging | 2 | 23 | 980 | 1481 |
| 362 | Public Policy | 1 | 20 | 3481 | 3844 |
| 362 | Systems Analysis | 1 | 20 | 2205 | 2171 |
| 362 | Parenteral nutrition | 1 | 20 | 2054 | 2450 |
| 362 | System analysis | 1 | 20 | 4496 | 4299 |
| 366 | Cost control | 1 | 19 | 341 | 342 |
| 367 | Nursing | 1 | 18 | 3788 | 3409 |
| 367 | Pediatrics | 1 | 18 | 4816 | 5235 |
| 367 | Teratology | 1 | 18 | 616 | 825 |
| 367 | Pediatric Hematology | 2 | 18 | 641 | 736 |
| 367 | Drug targeting | 2 | 18 | 441 | 1036 |
| 367 | abnormalities | 1 | 18 | 400 | 557 |
| 373 | pain management | 5 | 17 | 614 | 1543 |
| 373 | Hemophilia | 1 | 17 | 940 | 996 |
| 373 | France | 1 | 17 | 863 | 626 |
| 373 | Fishery resources | 1 | 17 | 1220 | 1453 |
| 373 | Insects | 1 | 17 | 2647 | 2586 |
| 373 | Insect biochemistry | 1 | 17 | 880 | 1104 |
| 379 | Radiation | 1 | 16 | 4053 | 4085 |
| 379 | Enzyme | 1 | 16 | 1006 | 1424 |
| 379 | Chemical industry | 1 | 16 | 2563 | 2564 |
| 379 | Culture techniques | 1 | 16 | 662 | 730 |
| 383 | Oral Medicine | 1 | 15 | 1381 | 1407 |
| 383 | Substance Abuse | 1 | 15 | 2672 | 3048 |
| 385 | Infections | 1 | 14 | 2398 | 3162 |
| 385 | Parasitic Diseases | 1 | 14 | 3789 | 4484 |
| 385 | infection | 1 | 14 | 3284 | 3989 |
| 388 | Biosensors | 1 | 13 | 2322 | 3296 |
| 388 | Evolutionary Genetics | 2 | 13 | 1069 | 2033 |
| 388 | Molecular Epidemiology | 2 | 13 | 1069 | 2033 |
| 388 | Hospitals | 1 | 13 | 1526 | 1809 |
| 388 | Jurisprudence | 1 | 13 | 1839 | 1973 |
| 388 | Digestive system diseases | 1 | 13 | 1867 | 2293 |
| 394 | Organometallic chemistry | 2 | 12 | 2721 | 3612 |
| 394 | Atherosclerosis | 1 | 12 | 396 | 650 |
| 394 | Health promotion | 1 | 12 | 3012 | 3553 |
| 394 | Dementia | 3 | 12 | 1830 | 2300 |
| 394 | Alzheimer's disease | 3 | 12 | 1838 | 2430 |
| 399 | Sustainable Engineering | 2 | 11 | 2345 | 3618 |
| 399 | Clinical Biochemistry | 1 | 11 | 2601 | 3020 |
| 399 | Quality Control | 2 | 11 | 2709 | 4288 |
| 399 | Veterinary Immunology | 1 | 11 | 736 | 1011 |
| 399 | visualization | 2 | 11 | 2423 | 2455 |
| 399 | Parkinson's disease | 1 | 11 | 588 | 844 |
| 405 | Robotics | 3 | 10 | 1946 | 3424 |
| 405 | Automation | 3 | 10 | 2240 | 3709 |
| 405 | Catalysis | 4 | 10 | 3434 | 5829 |
| 405 | Raman spectroscopy | 1 | 10 | 1635 | 2173 |
| 405 | Infrared spectroscopy | 1 | 10 | 797 | 1180 |
| 405 | Laboratories | 3 | 10 | 10 | 45 |
| 405 | cell interaction | 1 | 10 | 2226 | 3049 |
| 412 | Health Services Administration | 1 | 9 | 2448 | 3135 |
| 412 | Heterocyclic compounds | 1 | 9 | 1876 | 2106 |
| 414 | Molecular evolution | 2 | 8 | 2273 | 4021 |
| 414 | Plastics | 1 | 8 | 3118 | 3659 |
| 416 | Engineering | 1 | 7 | 8212 | 8959 |
| 416 | Medical Imaging | 1 | 7 | 606 | 835 |
| 416 | Magnetic Resonance Imaging | 1 | 7 | 1084 | 1529 |
| 416 | Quality Management | 1 | 7 | 445 | 612 |
| 416 | Photochemistry | 1 | 7 | 3285 | 4349 |
| 416 | Amyloidosis | 1 | 7 | 323 | 568 |
| 416 | Developmental Immunology | 1 | 7 | 1583 | 2342 |
| 416 | Screening | 1 | 7 | 470 | 786 |
| 416 | Light | 1 | 7 | 1868 | 2673 |
| 416 | Phylogeny | 1 | 7 | 1631 | 2411 |
| 426 | blood substitutes | 1 | 6 | 174 | 278 |
| 426 | Crystallography | 2 | 6 | 2348 | 2991 |
| 426 | artificial cells | 1 | 6 | 235 | 342 |
| 426 | Chronic diseases | 1 | 6 | 1411 | 2156 |
| 430 | Electrical Engineering | 1 | 5 | 5730 | 5849 |
| 430 | Mental Disorders | 1 | 5 | 5626 | 7255 |
| 430 | particles | 1 | 5 | 2010 | 2819 |
| 430 | environmental exposure | 1 | 5 | 3720 | 5350 |
| 430 | Granular materials | 1 | 5 | 1245 | 1952 |
| 430 | Mental illness | 1 | 5 | 3812 | 5179 |
| 436 | Probability | 1 | 4 | 1235 | 1850 |
| 436 | Risk Management | 1 | 4 | 1651 | 2554 |
| 436 | Financial management | 1 | 4 | 1061 | 1796 |
| 436 | Risk | 1 | 4 | 1198 | 1831 |
| 436 | Endocrine system | 10 | 4 | 477 | 1291 |
| 441 | Computer Science | 1 | 3 | 4364 | 5499 |
| 441 | Database Management | 1 | 3 | 1456 | 2144 |
| 441 | Diagnosis | 1 | 3 | 1397 | 2266 |
| 441 | Patient Safety | 1 | 3 | 234 | 449 |
| 441 | baking | 1 | 3 | 419 | 760 |
| 441 | Liquid chromatography | 1 | 3 | 1155 | 1715 |
| 447 | Industrial Engineering | 1 | 2 | 3522 | 4921 |
| 447 | Agricultural Chemistry | 1 | 2 | 3948 | 5324 |
| 447 | Intellectual Property | 1 | 2 | 467 | 652 |
| 447 | patents | 1 | 2 | 420 | 899 |
| 447 | DNS | 1 | 2 | 1131 | 1929 |
| 447 | nucleotides | 1 | 2 | 726 | 1103 |
| 447 | DNA | 1 | 2 | 1345 | 2186 |
| 447 | Developing countries | 1 | 2 | 4701 | 6447 |
| 447 | Genes | 1 | 2 | 2259 | 3473 |
| 456 | Inorganic Chemistry | 1 | 1 | 341 | 856 |
| 456 | Geographic information systems | 1 | 1 | 2269 | 3584 |
| 456 | Molecular Spectroscopy | 1 | 1 | 3131 | 4527 |
| 456 | probabilities | 1 | 1 | 2175 | 2853 |
| 456 | synthesis | 4 | 1 | 1120 | 2805 |
| 456 | India | 1 | 1 | 3656 | 4835 |
| 462 | Optics | 1 | 0 | 7610 | 9240 |
| 462 | Photography | 1 | 0 | 4692 | 5557 |
| 462 | healthcare disparities | 1 | 0 | 1099 | 2094 |
| 462 | natural products | 1 | 0 | 3127 | 4498 |
| 462 | Liposomes | 1 | 0 | 1110 | 1957 |
| 462 | Reproduction | 1 | 0 | 4154 | 5960 |
| 462 | biological agents | 1 | 0 | 1424 | 2245 |
