| 1 | Medicine | 1,910 | 48.8K | 163 | 374 |
| 2 | Biochemistry | 1,075 | 33.3K | 396 | 505 |
| 3 | Science | 882 | 29.3K | 407 | 943 |
| 4 | Research | 960 | 26.3K | 243 | 375 |
| 5 | Molecular Biology | 815 | 25.5K | 325 | 601 |
| 6 | Chemistry | 633 | 18.2K | 679 | 1003 |
| 7 | Pharmacology | 512 | 16.5K | 246 | 279 |
| 8 | Biophysics | 584 | 15.6K | 248 | 324 |
| 9 | Biology | 582 | 15.5K | 599 | 1456 |
| 10 | Cancer | 306 | 11.4K | 265 | 377 |
| 11 | Toxicology | 274 | 10.3K | 268 | 265 |
| 12 | Biocompatible Materials | 212 | 10.1K | 320 | 367 |
| 13 | Biotechnology | 253 | 8.8K | 490 | 693 |
| 14 | Microbiology | 317 | 8.4K | 577 | 1016 |
| 15 | Nutrition | 299 | 8.3K | 196 | 343 |
| 16 | Cell Biology | 233 | 8.2K | 406 | 806 |
| 17 | biomedicine | 206 | 7.2K | 8 | 5 |
| 18 | Neurology | 216 | 6.9K | 817 | 1091 |
| 19 | Agricultural Chemistry | 119 | 5.8K | 200 | 136 |
| 20 | Oncology | 55 | 5.6K | 427 | 424 |
| 21 | Physiology | 218 | 5.6K | 376 | 587 |
| 22 | Cytology | 171 | 5.5K | 586 | 1062 |
| 23 | Psychiatry | 144 | 5.1K | 603 | 764 |
| 24 | environmental pollution | 156 | 4.8K | 398 | 580 |
| 25 | Physics | 55 | 4.7K | 3637 | 3080 |
| 26 | Alternative Medicine | 173 | 4.6K | 40 | 30 |
| 27 | complementary therapies | 173 | 4.5K | 39 | 30 |
| 28 | Immunity | 191 | 4.2K | 115 | 582 |
| 29 | infection | 200 | 4.1K | 22 | 129 |
| 30 | Nanotechnology | 111 | 4.1K | 946 | 1081 |
| 31 | Public Health | 174 | 4.1K | 623 | 889 |
| 32 | Pharmaceutical Chemistry | 121 | 3.9K | 538 | 615 |
| 33 | Oncogenes | 61 | 3.9K | 175 | 224 |
| 34 | Environmental monitoring | 134 | 3.8K | 278 | 511 |
| 35 | Pollution | 111 | 3.7K | 884 | 1225 |
| 36 | Pharmacognosy | 102 | 3.6K | 106 | 131 |
| 37 | Environmental Health | 117 | 3.6K | 751 | 1018 |
| 38 | software | 135 | 3.5K | 3 | 9 |
| 39 | Bioengineering | 101 | 3.4K | 623 | 967 |
| 40 | Clinical Chemistry | 87 | 3.4K | 435 | 433 |
| 41 | Obstetrics | 245 | 3.3K | 162 | 315 |
| 42 | biological factors | 104 | 3.1K | 61 | 115 |
| 43 | rehabilitation | 108 | 3.1K | 185 | 247 |
| 44 | Public Policy | 34 | 3.0K | 395 | 133 |
| 45 | Evidence-Based Medicine | 126 | 3.0K | 31 | 27 |
| 46 | Immunology | 128 | 3.0K | 683 | 1144 |
| 47 | Biochemical Engineering | 53 | 3.0K | 725 | 954 |
| 48 | Chemical Engineering | 77 | 2.9K | 1081 | 1091 |
| 49 | System analysis | 26 | 2.9K | 802 | 150 |
| 50 | Environmental Toxicology | 101 | 2.8K | 135 | 327 |
| 51 | China | 191 | 2.8K | 158 | 219 |
| 52 | free radicals | 60 | 2.8K | 178 | 228 |
| 53 | Materials | 93 | 2.7K | 1520 | 1584 |
| 54 | Pathology | 75 | 2.7K | 461 | 551 |
| 55 | Systems Analysis | 13 | 2.7K | 449 | 26 |
| 56 | Food | 89 | 2.7K | 345 | 421 |
| 57 | Geriatrics | 107 | 2.7K | 414 | 480 |
| 58 | Environment | 44 | 2.5K | 1512 | 1696 |
| 59 | Medical Oncology | 66 | 2.5K | 480 | 398 |
| 60 | Infertility | 71 | 2.4K | 165 | 188 |
| 60 | fertility | 71 | 2.4K | 174 | 199 |
| 62 | Medicinal plants | 62 | 2.4K | 114 | 132 |
| 63 | Therapeutics | 38 | 2.4K | 468 | 344 |
| 64 | Epidemiology | 121 | 2.3K | 486 | 813 |
| 65 | Ecology | 76 | 2.3K | 1525 | 2076 |
| 66 | carcinogens | 48 | 2.2K | 108 | 117 |
| 67 | Biomedical Engineering | 130 | 2.2K | 570 | 1052 |
| 68 | cell physiology | 63 | 2.1K | 221 | 416 |
| 69 | Analytical Chemistry | 73 | 2.0K | 1072 | 1127 |
| 70 | Genetic engineering | 24 | 2.0K | 775 | 452 |
| 71 | United States | 63 | 1.9K | 1190 | 1036 |
| 72 | Liver diseases | 33 | 1.9K | 486 | 589 |
| 73 | Metabolism | 70 | 1.9K | 697 | 1044 |
| 73 | Environmental pollutants | 90 | 1.9K | 160 | 345 |
| 75 | Medical genetics | 41 | 1.9K | 1071 | 1186 |
| 76 | Mental Disorders | 69 | 1.9K | 590 | 927 |
| 77 | Colloids | 50 | 1.9K | 1103 | 1079 |
| 78 | drug therapy | 57 | 1.8K | 540 | 536 |
| 79 | Mental illness | 54 | 1.8K | 417 | 632 |
| 80 | Stem cells | 32 | 1.8K | 481 | 375 |
| 81 | Psychophysiology | 37 | 1.8K | 1011 | 896 |
| 82 | Herbal medicine | 53 | 1.8K | 34 | 39 |
| 83 | toxicity testing | 73 | 1.7K | 23 | 51 |
| 84 | Endocrinology | 68 | 1.7K | 766 | 1193 |
| 85 | Materials Science | 50 | 1.7K | 1502 | 1468 |
| 86 | Quality of life | 22 | 1.7K | 413 | 217 |
| 87 | Hematology | 55 | 1.7K | 1260 | 1161 |
| 88 | Phytotherapy | 70 | 1.7K | 22 | 40 |
| 89 | Dermatology | 71 | 1.7K | 304 | 379 |
| 90 | Cell death | 49 | 1.7K | 183 | 397 |
| 91 | drugs | 44 | 1.6K | 437 | 342 |
| 92 | Dentistry | 161 | 1.6K | 16 | 51 |
| 93 | Genetics | 40 | 1.6K | 1353 | 1641 |
| 93 | Virology | 40 | 1.6K | 1065 | 1604 |
| 95 | Critical Care Medicine | 28 | 1.6K | 565 | 652 |
| 96 | Critical Care | 26 | 1.5K | 633 | 670 |
| 97 | Cell differentiation | 21 | 1.5K | 808 | 764 |
| 98 | Natural history | 8 | 1.5K | 3431 | 3332 |
| 99 | Surface Chemistry | 58 | 1.4K | 991 | 1214 |
| 100 | cytokines | 66 | 1.4K | 86 | 192 |
| 101 | Sleep | 90 | 1.4K | 195 | 406 |
| 102 | Psychopharmacology | 24 | 1.4K | 693 | 572 |
| 103 | Antibacterial agents | 26 | 1.4K | 92 | 61 |
| 104 | Schizophrenia | 41 | 1.4K | 258 | 313 |
| 105 | Carcinogenesis | 26 | 1.4K | 235 | 205 |
| 106 | Psychology | 50 | 1.4K | 1341 | 1422 |
| 107 | Sleep Disorders | 88 | 1.4K | 195 | 401 |
| 108 | Medical Microbiology | 48 | 1.4K | 568 | 946 |
| 109 | Water pollution | 16 | 1.4K | 1375 | 856 |
| 110 | Aging | 86 | 1.4K | 482 | 791 |
| 111 | Neurophysiology | 48 | 1.4K | 914 | 1244 |
| 112 | Pharmacy | 50 | 1.4K | 419 | 456 |
| 113 | Urology | 53 | 1.3K | 486 | 589 |
| 114 | Obesity | 38 | 1.3K | 586 | 693 |
| 115 | Oxidative stress | 34 | 1.3K | 126 | 213 |
| 115 | natural products | 55 | 1.3K | 200 | 281 |
| 117 | cell interaction | 51 | 1.3K | 78 | 182 |
| 118 | Neurochemistry | 48 | 1.3K | 667 | 877 |
| 119 | Cardiovascular system | 16 | 1.3K | 898 | 844 |
| 120 | mutagens | 19 | 1.3K | 267 | 222 |
| 121 | Attention | 43 | 1.3K | 453 | 481 |
| 122 | Physical Therapy | 45 | 1.2K | 256 | 346 |
| 123 | Perception | 43 | 1.2K | 513 | 570 |
| 124 | Industrial Microbiology | 15 | 1.2K | 868 | 541 |
| 125 | food technology | 36 | 1.2K | 660 | 653 |
| 125 | Visual Perception | 42 | 1.2K | 446 | 491 |
| 127 | Memory | 41 | 1.2K | 522 | 594 |
| 128 | Geriatric Psychiatry | 35 | 1.2K | 197 | 202 |
| 129 | Clinical Pharmacology | 41 | 1.2K | 284 | 283 |
| 130 | Diet | 40 | 1.1K | 574 | 809 |
| 131 | Inflammation | 47 | 1.1K | 112 | 266 |
| 132 | Drug delivery systems | 22 | 1.1K | 447 | 447 |
| 133 | Polymers | 49 | 1.1K | 1538 | 1662 |
| 134 | Medical Technology | 46 | 1.1K | 191 | 297 |
| 135 | Bioorganic chemistry | 52 | 1.1K | 658 | 982 |
| 136 | Educational Technology | 21 | 1.0K | 431 | 218 |
| 137 | Emergency Medicine | 93 | 1.0K | 154 | 338 |
| 138 | Genetic regulation | 9 | 1.0K | 781 | 515 |
| 139 | cloning | 8 | 1.0K | 448 | 270 |
| 140 | Pediatrics | 31 | 1.0K | 996 | 1187 |
| 141 | Clinical Biochemistry | 26 | 1.0K | 386 | 289 |
| 142 | Reproduction | 47 | 1.0K | 610 | 779 |
| 143 | Nanostructured Materials | 34 | 1.0K | 1188 | 1250 |
| 144 | Immunotherapy | 43 | 997 | 383 | 844 |
| 145 | Nursing | 57 | 959 | 247 | 287 |
| 146 | Water | 11 | 942 | 1572 | 1162 |
| 147 | Food Microbiology | 21 | 939 | 390 | 416 |
| 148 | Botany | 38 | 938 | 1452 | 1757 |
| 149 | viruses | 16 | 933 | 781 | 804 |
| 149 | Behavior | 28 | 933 | 1186 | 1479 |
| 151 | Bioinformatics | 27 | 929 | 673 | 848 |
| 152 | Human genetics | 9 | 908 | 1801 | 2306 |
| 152 | Computational Biology | 29 | 908 | 893 | 1091 |
| 154 | Genetic therapy | 24 | 902 | 411 | 479 |
| 155 | Thrombosis | 22 | 900 | 429 | 406 |
| 156 | Brain | 42 | 886 | 907 | 1261 |
| 157 | miniaturization | 10 | 865 | 1196 | 897 |
| 158 | dietary supplements | 38 | 854 | 40 | 117 |
| 159 | Biopharmaceutics | 13 | 853 | 531 | 272 |
| 160 | Parenteral nutrition | 34 | 841 | 217 | 450 |
| 161 | Biomass Energy | 8 | 840 | 1877 | 1111 |
| 162 | Respiration | 37 | 839 | 384 | 599 |
| 163 | Organic Chemistry | 34 | 838 | 1229 | 1269 |
| 163 | Cell communication | 40 | 838 | 47 | 141 |
| 165 | biochemical markers | 33 | 836 | 68 | 56 |
| 166 | Asia | 45 | 834 | 467 | 434 |
| 167 | Immunopharmacology | 33 | 820 | 165 | 193 |
| 168 | Chemotherapy | 27 | 819 | 453 | 446 |
| 169 | human behavior | 19 | 807 | 1037 | 1270 |
| 170 | Bipolar Disorder | 14 | 763 | 150 | 140 |
| 171 | Nanostructures | 25 | 762 | 673 | 902 |
| 172 | Health | 37 | 760 | 583 | 771 |
| 173 | Metabolic diseases | 31 | 757 | 937 | 1504 |
| 174 | Carbon | 4 | 746 | 1415 | 635 |
| 175 | Genomics | 28 | 745 | 1246 | 1507 |
| 176 | Hypertension | 11 | 717 | 1158 | 1129 |
| 177 | Information Science | 25 | 716 | 769 | 847 |
| 178 | medical education | 53 | 706 | 354 | 564 |
| 179 | arthritis | 16 | 701 | 683 | 777 |
| 180 | Psychosomatic Medicine | 20 | 700 | 285 | 349 |
| 181 | Environmental Engineering | 22 | 690 | 1625 | 1814 |
| 182 | Technology | 40 | 689 | 1259 | 1516 |
| 183 | pain | 29 | 684 | 425 | 690 |
| 183 | Oxidation-reduction | 16 | 684 | 266 | 476 |
| 185 | Orthopedics | 38 | 681 | 464 | 677 |
| 186 | nanoscience | 23 | 661 | 1238 | 1544 |
| 187 | Enteral nutrition | 23 | 638 | 223 | 405 |
| 188 | Health Services Research | 25 | 633 | 525 | 586 |
| 188 | nucleic acids | 13 | 633 | 1067 | 1224 |
| 190 | Cellular senescence | 18 | 631 | 157 | 227 |
| 191 | Ophthalmology | 30 | 630 | 624 | 833 |
| 192 | Sexual health | 24 | 622 | 197 | 211 |
| 193 | alcoholism | 29 | 618 | 476 | 658 |
| 194 | Systems Biology | 20 | 613 | 546 | 537 |
| 194 | Nervous system | 22 | 613 | 1081 | 1537 |
| 196 | Combinatorial chemistry | 5 | 612 | 765 | 349 |
| 197 | Diabetes | 25 | 608 | 966 | 1496 |
| 198 | Biosensors | 15 | 607 | 525 | 709 |
| 198 | cell adhesion molecules | 33 | 607 | 29 | 100 |
| 198 | Bioelectronics | 15 | 607 | 419 | 623 |
| 201 | Chromatographic analysis | 36 | 604 | 414 | 532 |
| 202 | disabilities | 35 | 593 | 96 | 160 |
| 203 | Diabetes mellitus | 22 | 584 | 960 | 1478 |
| 204 | Neurobiology | 20 | 578 | 883 | 1235 |
| 205 | gene mapping | 15 | 572 | 1037 | 1200 |
| 206 | environmental protection | 32 | 570 | 1022 | 1750 |
| 206 | Diagnostic microbiology | 13 | 570 | 746 | 1018 |
| 208 | Health Education | 42 | 561 | 432 | 676 |
| 209 | Pharmacogenetics | 17 | 549 | 412 | 530 |
| 209 | Cardiovascular diseases | 38 | 549 | 407 | 705 |
| 211 | Microbial Ecology | 15 | 548 | 1212 | 1576 |
| 212 | Parasitology | 39 | 547 | 628 | 993 |
| 213 | Green Chemistry | 11 | 546 | 1017 | 1040 |
| 214 | Tropical Medicine | 26 | 541 | 527 | 578 |
| 215 | Hormones | 18 | 537 | 562 | 708 |
| 216 | Alzheimer's disease | 24 | 531 | 634 | 595 |
| 217 | Food additives | 8 | 529 | 771 | 502 |
| 218 | Environmental Microbiology | 12 | 528 | 717 | 824 |
| 219 | Parasitic Diseases | 35 | 525 | 520 | 1051 |
| 220 | Pacific Islands | 22 | 523 | 41 | 20 |
| 221 | Long-Term Care | 10 | 522 | 278 | 270 |
| 221 | Long-term care facilities | 10 | 522 | 274 | 270 |
| 223 | Adsorption | 2 | 518 | 304 | 19 |
| 223 | Biomarkers | 14 | 518 | 79 | 35 |
| 225 | Chromosome mapping | 13 | 510 | 1010 | 1081 |
| 225 | environmental exposure | 35 | 510 | 360 | 869 |
| 227 | Hemostasis | 13 | 507 | 393 | 259 |
| 228 | Electrophoresis | 18 | 501 | 687 | 677 |
| 229 | blood transfusion | 23 | 495 | 253 | 279 |
| 230 | Vaccines | 25 | 493 | 684 | 952 |
| 231 | Dementia | 19 | 492 | 709 | 560 |
| 232 | Orthopedic Surgery | 21 | 482 | 259 | 367 |
| 233 | Andrology | 19 | 481 | 187 | 211 |
| 234 | Histochemistry | 18 | 480 | 400 | 398 |
| 235 | polymerization | 24 | 479 | 1898 | 2065 |
| 236 | Medical Laboratory Science | 13 | 477 | 1090 | 1126 |
| 237 | Electrochemistry | 55 | 472 | 1197 | 1945 |
| 238 | histological techniques | 11 | 471 | 342 | 392 |
| 239 | Neuroimmunology | 11 | 470 | 359 | 414 |
| 240 | Signal Transduction | 10 | 467 | 876 | 958 |
| 241 | hydrocolloids | 5 | 460 | 511 | 396 |
| 242 | Cytogenetics | 9 | 459 | 1136 | 1242 |
| 242 | Adolescent | 14 | 459 | 1162 | 990 |
| 244 | Education | 15 | 455 | 2137 | 1342 |
| 245 | Substance Abuse | 23 | 452 | 513 | 666 |
| 246 | Child | 19 | 448 | 1218 | 1222 |
| 247 | Marine Biology | 4 | 445 | 2716 | 1473 |
| 248 | Radiobiology | 48 | 443 | 515 | 951 |
| 249 | Sustainable Engineering | 9 | 438 | 1035 | 927 |
| 250 | Spectrum analysis | 22 | 433 | 2264 | 2572 |
| 251 | Optical materials | 5 | 431 | 2422 | 1715 |
| 252 | Neuropsychology | 20 | 430 | 1060 | 1349 |
| 253 | Primary health care | 14 | 423 | 855 | 726 |
| 254 | gene therapy | 13 | 416 | 577 | 816 |
| 255 | soil microbiology | 8 | 412 | 1022 | 1130 |
| 255 | Nanoparticles | 12 | 412 | 1048 | 1066 |
| 255 | drug addiction | 19 | 412 | 465 | 705 |
| 258 | Chromatography | 16 | 398 | 707 | 657 |
| 259 | Cognition | 16 | 397 | 822 | 990 |
| 260 | Virulence | 14 | 395 | 590 | 1126 |
| 261 | vascular diseases | 11 | 394 | 397 | 534 |
| 262 | Surface-Active Agents | 22 | 392 | 214 | 538 |
| 262 | Surface properties | 22 | 392 | 240 | 596 |
| 264 | Neurons | 2 | 391 | 1033 | 1047 |
| 265 | Neurosurgery | 18 | 386 | 515 | 694 |
| 265 | Informatics | 8 | 386 | 524 | 425 |
| 267 | Surgery | 34 | 385 | 745 | 1808 |
| 267 | Ultrasonics | 11 | 385 | 512 | 565 |
| 269 | industrial hygiene | 19 | 384 | 340 | 266 |
| 270 | Sociology | 8 | 383 | 2268 | 1527 |
| 271 | anesthesia | 20 | 382 | 103 | 55 |
| 272 | Chronobiology | 12 | 381 | 105 | 113 |
| 272 | Psychoneuroimmunology | 9 | 381 | 375 | 447 |
| 272 | Photonics | 9 | 381 | 1193 | 1217 |
| 272 | Circadian rhythms | 12 | 381 | 68 | 99 |
| 272 | biological clocks | 12 | 381 | 105 | 113 |
| 272 | circadian rhythm | 12 | 381 | 105 | 113 |
| 272 | biological rhythms | 12 | 381 | 101 | 111 |
| 279 | Electronics | 20 | 379 | 1761 | 1605 |
| 279 | Molecular structure | 8 | 379 | 1870 | 1378 |
| 281 | Developmental Biology | 13 | 378 | 1212 | 1676 |
| 282 | Proteomics | 19 | 376 | 345 | 733 |
| 282 | Leukemia | 4 | 376 | 1452 | 934 |
| 284 | brain mapping | 8 | 373 | 473 | 530 |
| 285 | Neurotoxicology | 7 | 372 | 338 | 256 |
| 286 | Environmental Chemistry | 4 | 368 | 2335 | 1564 |
| 287 | Gastrointestinal diseases | 25 | 362 | 101 | 204 |
| 288 | Muscles | 10 | 361 | 542 | 642 |
| 289 | Genetic Toxicology | 5 | 356 | 362 | 279 |
| 290 | Diagnostic Imaging | 24 | 353 | 715 | 1211 |
| 290 | Cheminformatics | 5 | 353 | 249 | 264 |
| 292 | Kidney diseases | 21 | 348 | 307 | 600 |
| 293 | Sarcopenia | 8 | 345 | 177 | 285 |
| 294 | Australia | 23 | 344 | 614 | 762 |
| 295 | Plant physiology | 7 | 340 | 1661 | 1592 |
| 296 | Microorganisms | 5 | 339 | 1108 | 1000 |
| 296 | Europe | 40 | 339 | 950 | 1663 |
| 298 | locomotion | 13 | 338 | 303 | 339 |
| 298 | posture | 13 | 338 | 303 | 339 |
| 298 | older people | 32 | 338 | 454 | 601 |
| 298 | Biometrics | 8 | 338 | 802 | 579 |
| 298 | gait | 13 | 338 | 303 | 339 |
| 298 | walking | 13 | 338 | 303 | 339 |
| 304 | Occupational Health | 21 | 334 | 349 | 447 |
| 304 | Environmental Policy | 13 | 334 | 1808 | 2608 |
| 304 | Health Policy | 19 | 334 | 998 | 1418 |
| 307 | Steroids | 12 | 333 | 531 | 587 |
| 308 | Functional foods | 9 | 332 | 134 | 113 |
| 309 | Embryology | 16 | 331 | 845 | 1379 |
| 309 | occupational diseases | 18 | 331 | 311 | 522 |
| 311 | Environmental Law | 12 | 325 | 516 | 1038 |
| 312 | Engineering | 10 | 319 | 3202 | 2113 |
| 313 | Pediatric Neurology | 7 | 316 | 879 | 1224 |
| 314 | Catalysis | 9 | 315 | 2654 | 2681 |
| 315 | Energy Conversion | 2 | 308 | 1628 | 1144 |
| 316 | Neuropharmacology | 10 | 307 | 268 | 328 |
| 317 | Microelectronics | 9 | 302 | 1292 | 1329 |
| 317 | Elderly | 27 | 302 | 410 | 345 |
| 319 | Proteome | 13 | 300 | 624 | 959 |
| 320 | Information Systems | 15 | 299 | 525 | 742 |
| 321 | Women's health | 18 | 298 | 445 | 667 |
| 322 | Sonochemistry | 6 | 294 | 377 | 448 |
| 323 | enzymes | 9 | 293 | 1025 | 1050 |
| 324 | Pharmaceutical Technology | 14 | 290 | 736 | 965 |
| 325 | Clinical Immunology | 19 | 286 | 539 | 912 |
| 326 | Medical innovations | 9 | 285 | 636 | 1376 |
| 327 | sanitation | 4 | 284 | 1670 | 1636 |
| 328 | Infections | 16 | 282 | 517 | 1127 |
| 329 | Parasites | 19 | 278 | 580 | 899 |
| 330 | Smoking | 12 | 274 | 397 | 563 |
| 331 | Diagnosis | 17 | 273 | 140 | 210 |
| 331 | disease susceptibility | 17 | 273 | 52 | 108 |
| 331 | symptoms | 17 | 273 | 52 | 108 |
| 334 | Histology | 17 | 271 | 889 | 1479 |
| 335 | actuators | 17 | 269 | 990 | 1661 |
| 335 | transducers | 17 | 269 | 990 | 1661 |
| 337 | Drug design | 12 | 267 | 873 | 1211 |
| 338 | pigments | 7 | 265 | 545 | 418 |
| 339 | health planning | 23 | 261 | 695 | 1135 |
| 340 | Community Psychiatry | 15 | 260 | 421 | 744 |
| 341 | genome | 8 | 259 | 1198 | 1755 |
| 342 | Molecular Pharmacology | 11 | 257 | 372 | 693 |
| 342 | Animal Behavior | 7 | 257 | 1520 | 1654 |
| 342 | Ethology | 7 | 257 | 1176 | 1424 |
| 345 | Water quality management | 8 | 256 | 1242 | 958 |
| 346 | Anatomy | 12 | 255 | 1246 | 1528 |
| 346 | Waste management | 7 | 255 | 1008 | 651 |
| 346 | Water Purification | 7 | 255 | 776 | 512 |
| 349 | Composite Materials | 7 | 251 | 2148 | 2173 |
| 350 | educational innovations | 3 | 250 | 587 | 221 |
| 350 | Bones | 9 | 250 | 641 | 782 |
| 352 | Geriatric Oncology | 9 | 247 | 310 | 426 |
| 352 | drug evaluation | 11 | 247 | 684 | 802 |
| 354 | Palliative Care | 18 | 244 | 301 | 490 |
| 354 | plant molecular biology | 4 | 244 | 1536 | 1550 |
| 356 | Chemical analysis | 12 | 242 | 600 | 779 |
| 357 | Immunopathology | 11 | 239 | 903 | 1172 |
| 358 | Electrophysiology | 24 | 238 | 354 | 663 |
| 358 | Plants | 3 | 238 | 2586 | 1780 |
| 360 | Developmental Immunology | 14 | 237 | 254 | 518 |
| 361 | pollutants | 18 | 236 | 746 | 1619 |
| 362 | Host-parasite interactions | 8 | 235 | 917 | 1573 |
| 363 | Marine Pollution | 2 | 232 | 1752 | 1021 |
| 364 | Respiratory system | 11 | 231 | 272 | 462 |
| 365 | proteins | 16 | 229 | 1110 | 1696 |
| 366 | Sports Medicine | 23 | 222 | 1078 | 1697 |
| 367 | mutation | 2 | 221 | 983 | 572 |
| 368 | Pharmacokinetics | 7 | 220 | 645 | 643 |
| 369 | Neural circuitry | 8 | 218 | 1345 | 1493 |
| 369 | Cytoskeleton | 1 | 218 | 587 | 186 |
| 369 | cell membrane | 1 | 218 | 1151 | 524 |
| 372 | Plant Ecology | 3 | 214 | 2063 | 1637 |
| 373 | Marine Biotechnology | 2 | 213 | 341 | 153 |
| 374 | Geriatric Pharmacology | 5 | 212 | 245 | 192 |
| 374 | United Kingdom | 7 | 212 | 1312 | 1486 |
| 376 | Nanobiotechnology | 9 | 211 | 147 | 401 |
| 377 | Computer Science | 14 | 210 | 1011 | 1057 |
| 378 | Enzyme | 3 | 203 | 552 | 411 |
| 379 | Health promotion | 16 | 201 | 655 | 1195 |
| 379 | hygiene | 7 | 201 | 296 | 312 |
| 381 | Astrocytes | 4 | 200 | 517 | 606 |
| 382 | Adolescent Medicine | 1 | 198 | 1439 | 878 |
| 383 | Photochemistry | 7 | 196 | 1403 | 1368 |
| 383 | breastfeeding | 4 | 196 | 512 | 316 |
| 385 | Artificial Organs | 10 | 191 | 401 | 387 |
| 386 | Antioxidants | 8 | 190 | 481 | 922 |
| 386 | Developmental Disabilities | 8 | 190 | 677 | 935 |
| 386 | vitamin C | 8 | 190 | 165 | 355 |
| 386 | vitamin E | 8 | 190 | 165 | 355 |
| 390 | preventive medicine | 15 | 187 | 615 | 1297 |
| 390 | preimplantation genetic diagnosis | 17 | 187 | 114 | 279 |
| 390 | embryo transfer | 17 | 187 | 120 | 296 |
| 393 | Developing countries | 10 | 186 | 1467 | 1797 |
| 394 | Molecular cloning | 9 | 184 | 966 | 1239 |
| 394 | Genetic recombination | 9 | 184 | 946 | 1230 |
| 394 | ethanol | 7 | 184 | 315 | 326 |
| 394 | Recombinant DNA | 9 | 184 | 1034 | 1322 |
| 398 | Erectile dysfunction | 7 | 183 | 135 | 148 |
| 398 | counseling | 11 | 183 | 752 | 966 |
| 400 | Cognitive neuroscience | 5 | 180 | 872 | 1005 |
| 401 | Psychiatric Nursing | 12 | 178 | 280 | 356 |
| 402 | Decision making | 7 | 177 | 1086 | 1117 |
| 403 | women | 8 | 176 | 465 | 293 |
| 404 | Immunochemistry | 6 | 175 | 848 | 769 |
| 405 | Ethnology | 9 | 172 | 948 | 787 |
| 405 | finance | 6 | 172 | 1961 | 1601 |
| 407 | Emergency Medical Services | 9 | 170 | 437 | 475 |
| 407 | Geriatric Nursing | 20 | 170 | 66 | 152 |
| 407 | Medical Anthropology | 4 | 170 | 1367 | 1461 |
| 410 | Child Development | 10 | 169 | 1322 | 1889 |
| 411 | Neurotransmitters | 12 | 168 | 258 | 373 |
| 412 | Psychiatric Epidemiology | 9 | 166 | 251 | 547 |
| 413 | Hemodynamics | 3 | 165 | 798 | 847 |
| 413 | Research Design | 6 | 165 | 1036 | 1137 |
| 413 | Cerebral cortex | 4 | 165 | 983 | 1053 |
| 416 | Malaria | 6 | 162 | 575 | 636 |
| 417 | Radiology | 21 | 160 | 684 | 1195 |
| 417 | Nuclear Medicine | 8 | 160 | 817 | 968 |
| 417 | Radiation Oncology | 6 | 160 | 283 | 304 |
| 417 | Androgens | 7 | 160 | 142 | 247 |
| 421 | Patient education | 10 | 159 | 327 | 646 |
| 421 | Egypt | 5 | 159 | 312 | 358 |
| 423 | Gerontology | 40 | 158 | 503 | 1484 |
| 424 | Asthma | 7 | 157 | 489 | 504 |
| 424 | hospice care | 13 | 157 | 189 | 327 |
| 426 | Molecular Imaging | 7 | 156 | 542 | 788 |
| 427 | Spine | 5 | 155 | 701 | 855 |
| 428 | energy conservation | 3 | 153 | 2362 | 2184 |
| 428 | Endocrine glands | 1 | 153 | 635 | 509 |
| 430 | International Finance | 5 | 152 | 1468 | 1329 |
| 430 | Capital market | 5 | 152 | 287 | 330 |
| 432 | Computer-Aided Design | 3 | 151 | 1481 | 912 |
| 433 | Randomized Controlled Trials | 4 | 148 | 1347 | 827 |
| 433 | prostaglandins | 5 | 148 | 428 | 401 |
| 435 | venom | 6 | 147 | 648 | 663 |
| 435 | Toxins | 6 | 147 | 730 | 740 |
| 437 | Japan | 10 | 145 | 1400 | 1445 |
| 438 | urban health | 4 | 143 | 243 | 270 |
| 439 | Lipids | 10 | 142 | 795 | 1595 |
| 440 | Simulation | 4 | 141 | 134 | 139 |
| 440 | theoretical models | 4 | 141 | 134 | 139 |
| 442 | Reproductive health | 8 | 140 | 498 | 699 |
| 442 | Digestive system diseases | 10 | 140 | 640 | 1020 |
| 444 | Cerebellum | 2 | 139 | 442 | 270 |
| 444 | Nitric oxide | 4 | 139 | 306 | 265 |
| 444 | Cerebellar ataxia | 2 | 139 | 442 | 270 |
| 447 | behavioral medicine | 4 | 138 | 1424 | 1645 |
| 447 | Sports | 10 | 138 | 1368 | 1571 |
| 449 | Sustainable Development | 2 | 137 | 3222 | 2175 |
| 449 | health services accessibility | 5 | 137 | 857 | 794 |
| 451 | Medical Physics | 12 | 136 | 1083 | 1587 |
| 452 | Chromosomes | 3 | 135 | 1226 | 1130 |
| 453 | Neuropsychiatry | 7 | 134 | 709 | 964 |
| 453 | Pregnancy | 4 | 134 | 888 | 781 |
| 455 | Bacteriology | 5 | 133 | 1917 | 2455 |
| 455 | Mental Health Services | 10 | 133 | 772 | 1152 |
| 455 | global environmental change | 1 | 133 | 1717 | 1095 |
| 458 | Evolutionary Genetics | 3 | 132 | 826 | 623 |
| 458 | Molecular Epidemiology | 3 | 132 | 826 | 623 |
| 458 | Physical Chemistry | 5 | 132 | 2200 | 2211 |
| 458 | RNA | 3 | 132 | 625 | 668 |
| 462 | Mass Spectrometry | 7 | 131 | 951 | 1156 |
| 463 | Greenhouse gases | 1 | 128 | 731 | 403 |
| 464 | Mathematics | 12 | 127 | 4249 | 4320 |
| 464 | coal | 2 | 127 | 2213 | 1876 |
| 466 | Histocompatibility Testing | 7 | 126 | 423 | 472 |
| 467 | Cell division | 6 | 123 | 369 | 605 |
| 468 | Occupational Therapy | 17 | 122 | 363 | 577 |
| 468 | Cross-Cultural Studies | 10 | 122 | 265 | 536 |
| 468 | cross-cultural comparison | 10 | 122 | 199 | 393 |
| 471 | Immunotoxicology | 5 | 120 | 193 | 173 |
| 471 | pain management | 7 | 120 | 455 | 668 |
| 471 | Photobiology | 6 | 120 | 1121 | 1344 |
| 474 | Molecular Genetics | 6 | 119 | 1854 | 2562 |
| 474 | Enzyme inhibitors | 13 | 119 | 87 | 278 |
| 476 | Synaptic Transmission | 3 | 118 | 616 | 576 |
| 477 | Analytical Toxicology | 5 | 117 | 176 | 211 |
| 477 | Emerging infectious diseases | 4 | 117 | 283 | 371 |
| 477 | Environmental Management | 3 | 117 | 3519 | 3707 |
| 480 | Drug targeting | 5 | 116 | 182 | 349 |
| 481 | Socioeconomic Factors | 2 | 114 | 1189 | 806 |
| 482 | Bioethics | 3 | 113 | 1068 | 683 |
| 482 | Anxiety Disorders | 2 | 113 | 810 | 854 |
| 482 | Anxiety | 2 | 113 | 809 | 852 |
| 485 | rare diseases | 4 | 112 | 704 | 821 |
| 486 | Rheumatology | 12 | 111 | 778 | 1585 |
| 486 | Mental Health | 11 | 111 | 947 | 1604 |
| 488 | Analytical Biochemistry | 12 | 110 | 928 | 1918 |
| 488 | particles | 5 | 110 | 829 | 898 |
| 488 | Cytokine | 4 | 110 | 391 | 636 |
| 491 | Mechanical Engineering | 5 | 109 | 2447 | 1895 |
| 491 | psychotherapy | 5 | 109 | 1252 | 1448 |
| 493 | adolescence | 3 | 108 | 1083 | 995 |
| 494 | Molecular Microbiology | 5 | 107 | 800 | 1370 |
| 494 | visualization | 28 | 107 | 428 | 790 |
| 494 | Bacterial diseases | 5 | 107 | 125 | 295 |
| 497 | Manufacturing Processes | 3 | 106 | 2708 | 2245 |
| 497 | risk factors | 7 | 106 | 554 | 866 |
| 499 | food contamination | 6 | 105 | 795 | 910 |
| 499 | Mitochondria | 4 | 105 | 283 | 363 |
| 499 | biopolymers | 3 | 105 | 1412 | 1298 |
| 502 | Oral Medicine | 10 | 104 | 322 | 473 |
| 502 | Physical organic chemistry | 9 | 104 | 922 | 1339 |
| 502 | gene transfer | 3 | 104 | 325 | 315 |
| 502 | genetic transformation | 3 | 104 | 325 | 315 |
| 506 | Medical Ethics | 2 | 103 | 1793 | 930 |
| 506 | Youth | 2 | 103 | 937 | 771 |
| 508 | Fuzzy systems | 3 | 102 | 2088 | 1247 |
| 508 | Exercise | 9 | 102 | 835 | 1213 |
| 510 | Nephrology | 6 | 100 | 490 | 970 |
| 511 | Telemedicine | 9 | 99 | 154 | 460 |
| 512 | Global Health | 14 | 97 | 419 | 978 |
| 512 | Africa | 7 | 97 | 1216 | 1189 |
| 512 | solar cells | 3 | 97 | 1093 | 1293 |
| 515 | epilepsy | 7 | 95 | 777 | 1161 |
| 516 | Biomechanics | 9 | 94 | 936 | 1691 |
| 516 | Autism | 6 | 94 | 578 | 1047 |
| 518 | Health Services Administration | 10 | 92 | 581 | 1284 |
| 518 | Biodegradation | 3 | 92 | 845 | 980 |
| 520 | air quality management | 6 | 91 | 323 | 688 |
| 520 | Ultrasonic Imaging | 5 | 91 | 423 | 580 |
| 520 | Ultrasound | 5 | 91 | 463 | 647 |
| 523 | Music | 6 | 90 | 718 | 669 |
| 523 | voice | 6 | 90 | 359 | 495 |
| 523 | Aerosols | 3 | 90 | 698 | 631 |
| 523 | Menopause | 4 | 90 | 281 | 360 |
| 527 | Clinical Psychology | 5 | 89 | 1424 | 2102 |
| 527 | Cognitive Science | 6 | 89 | 1210 | 1913 |
| 527 | drug resistance | 8 | 89 | 355 | 984 |
| 527 | Physical fitness | 4 | 89 | 1093 | 1251 |
| 527 | Peroxisomes | 3 | 89 | 60 | 100 |
| 532 | Depression | 1 | 88 | 841 | 728 |
| 533 | Social Psychology | 4 | 87 | 2211 | 2526 |
| 533 | sports injuries | 10 | 87 | 226 | 523 |
| 535 | mass transfer | 4 | 86 | 1689 | 1951 |
| 536 | Neonatology | 5 | 85 | 545 | 771 |
| 536 | food handling | 4 | 85 | 872 | 1335 |
| 538 | Hemophilia | 9 | 84 | 320 | 532 |
| 539 | Climatology | 3 | 83 | 2123 | 2260 |
| 539 | bioclimatology | 3 | 83 | 1108 | 1099 |
| 539 | Climate | 3 | 83 | 697 | 833 |
| 539 | weather | 3 | 83 | 657 | 741 |
| 543 | men | 7 | 82 | 111 | 279 |
| 543 | Biomolecules | 2 | 82 | 696 | 778 |
| 545 | Water Microbiology | 3 | 79 | 513 | 608 |
| 546 | Metallurgy | 5 | 78 | 2450 | 2579 |
| 546 | Growth factors | 3 | 78 | 299 | 657 |
| 546 | Metals | 5 | 78 | 2202 | 2540 |
| 546 | Fouling | 2 | 78 | 345 | 379 |
| 550 | Hazardous waste | 2 | 77 | 1360 | 1659 |
| 551 | Light | 1 | 76 | 1968 | 1657 |
| 551 | indoor air pollution | 4 | 76 | 360 | 564 |
| 551 | Ventilation | 4 | 76 | 482 | 654 |
| 551 | Sick building syndrome | 4 | 76 | 360 | 564 |
| 555 | Exercise therapy | 1 | 75 | 975 | 368 |
| 555 | fuel cells | 2 | 75 | 1726 | 1746 |
| 555 | Molecular Spectroscopy | 5 | 75 | 1708 | 2131 |
| 558 | Risk assessment | 4 | 74 | 566 | 642 |
| 558 | Health Risk Assessment | 4 | 74 | 393 | 484 |
| 558 | Consciousness | 3 | 74 | 537 | 559 |
| 561 | Electrochemical Analysis | 13 | 73 | 787 | 1774 |
| 562 | Mutagenesis | 5 | 72 | 313 | 514 |
| 562 | nuclear magnetic resonance | 3 | 72 | 1360 | 1238 |
| 562 | Magnetic Resonance Spectroscopy | 3 | 72 | 1516 | 1349 |
| 565 | School Psychology | 2 | 71 | 658 | 587 |
| 566 | radioactive waste | 1 | 70 | 1620 | 1657 |
| 566 | disease vectors | 3 | 70 | 1189 | 1382 |
| 566 | industrial waste | 1 | 70 | 1673 | 1658 |
| 566 | Hearing | 3 | 70 | 832 | 829 |
| 566 | Electromagnetic fields | 3 | 70 | 348 | 123 |
| 571 | Quality Control | 3 | 69 | 2256 | 2391 |
| 571 | Veterinary Immunology | 3 | 69 | 424 | 477 |
| 573 | elder abuse | 1 | 68 | 683 | 438 |
| 573 | Suicide | 5 | 68 | 462 | 716 |
| 575 | Raman spectroscopy | 2 | 67 | 1197 | 1061 |
| 575 | Jurisprudence | 4 | 67 | 963 | 1015 |
| 577 | Metallography | 4 | 66 | 770 | 1072 |
| 578 | Health insurance | 7 | 65 | 299 | 692 |
| 578 | Child psychology | 4 | 65 | 1582 | 2299 |
| 580 | Educational Psychology | 1 | 64 | 2603 | 1718 |
| 580 | Business | 2 | 64 | 3120 | 2740 |
| 580 | Drug delivery devices | 2 | 64 | 264 | 405 |
| 580 | Allergy | 4 | 64 | 1407 | 2272 |
| 584 | Zoology | 5 | 62 | 2585 | 2948 |
| 584 | Food Safety | 3 | 62 | 249 | 283 |
| 584 | Mineralogy | 1 | 62 | 2453 | 1657 |
| 584 | Nanoelectronics | 5 | 62 | 777 | 844 |
| 584 | Radiation | 6 | 62 | 2009 | 2702 |
| 584 | Teaching | 2 | 62 | 2655 | 1875 |
| 584 | Semiconductor industry | 5 | 62 | 551 | 668 |
| 591 | Otolaryngology | 8 | 61 | 432 | 878 |
| 591 | Laser therapy | 4 | 61 | 402 | 426 |
| 593 | violence | 1 | 60 | 1900 | 1359 |
| 593 | Aggression | 1 | 60 | 952 | 758 |
| 595 | Statistics | 10 | 59 | 1881 | 2905 |
| 595 | Integrative Medicine | 6 | 59 | 190 | 250 |
| 597 | Neuroimaging | 3 | 57 | 351 | 380 |
| 597 | Travel | 5 | 57 | 775 | 1137 |
| 597 | Reproductive toxicology | 2 | 57 | 776 | 813 |
| 597 | health services | 2 | 57 | 1790 | 1593 |
| 601 | Functional Genomics | 1 | 56 | 693 | 692 |
| 601 | Semiconductors | 3 | 56 | 2516 | 2448 |
| 601 | Autoantibodies | 4 | 56 | 632 | 1175 |
| 601 | Autoimmunity | 4 | 56 | 819 | 1513 |
| 601 | ovary | 5 | 56 | 121 | 337 |
| 601 | Autoimmune diseases | 4 | 56 | 679 | 1251 |
| 607 | Information Technology | 5 | 55 | 2427 | 2954 |
| 607 | Industrial Safety | 5 | 55 | 1061 | 1617 |
| 607 | Solar Energy | 2 | 55 | 2440 | 2727 |
| 607 | solar power | 2 | 55 | 1188 | 1512 |
| 611 | Mathematical Physics | 3 | 54 | 3642 | 3011 |
| 611 | Human-Computer Interaction | 4 | 54 | 1562 | 2070 |
| 611 | Organometallic chemistry | 5 | 54 | 1834 | 2307 |
| 611 | Statistical physics | 3 | 54 | 4180 | 4159 |
| 611 | drug control | 4 | 54 | 363 | 622 |
| 616 | Optics | 8 | 53 | 3926 | 4813 |
| 616 | Microcirculation | 2 | 53 | 757 | 820 |
| 616 | embryonic development | 3 | 53 | 495 | 735 |
| 616 | Gene expression regulation | 2 | 53 | 1615 | 1782 |
| 616 | Social behavior | 2 | 53 | 1703 | 1815 |
| 621 | Genetic testing | 4 | 52 | 293 | 382 |
| 622 | Infection control | 5 | 51 | 634 | 1301 |
| 622 | Biofeedback | 2 | 51 | 151 | 256 |
| 622 | behavior therapy | 2 | 51 | 1220 | 1320 |
| 625 | Artificial Intelligence | 6 | 50 | 3350 | 4808 |
| 625 | Marriage | 2 | 50 | 763 | 755 |
| 625 | Speech Disorders | 2 | 50 | 1479 | 1512 |
| 625 | paraphilias | 2 | 50 | 274 | 324 |
| 625 | Marriage counseling | 2 | 50 | 466 | 530 |
| 625 | Speech | 2 | 50 | 1275 | 1386 |
| 625 | Immune system | 2 | 50 | 1638 | 2105 |
| 632 | Nuclear Chemistry | 2 | 49 | 1634 | 1214 |
| 632 | Nutrition physiology | 5 | 49 | 636 | 1383 |
| 632 | Radiochemistry | 2 | 49 | 1551 | 1091 |
| 632 | Vaccination | 1 | 49 | 606 | 521 |
| 632 | DNA methylation | 1 | 49 | 695 | 734 |
| 632 | Osteoporosis | 6 | 49 | 206 | 611 |
| 632 | Bone diseases | 6 | 49 | 348 | 1015 |
| 632 | Cellulose | 2 | 49 | 906 | 1132 |
| 632 | Multiple sclerosis | 2 | 49 | 968 | 746 |
| 632 | vitamins | 1 | 49 | 382 | 360 |
| 642 | Structural design | 1 | 48 | 1602 | 1176 |
| 642 | Smart Materials | 1 | 48 | 1822 | 1335 |
| 642 | Animal ecology | 3 | 48 | 1394 | 1707 |
| 642 | Social Change | 1 | 48 | 1941 | 1944 |
| 642 | Wildlife management | 3 | 48 | 714 | 779 |
| 642 | Plastics | 4 | 48 | 1802 | 2258 |
| 642 | disaster relief | 3 | 48 | 234 | 407 |
| 649 | Pharmacogenomics | 2 | 47 | 514 | 716 |
| 649 | Biodiversity | 5 | 47 | 2231 | 3556 |
| 651 | Nanochemistry | 4 | 46 | 1226 | 1841 |
| 651 | Language Disorders | 1 | 46 | 1646 | 1220 |
| 651 | Contraception | 3 | 46 | 774 | 1154 |
| 651 | Technological Innovations | 3 | 46 | 1210 | 1646 |
| 651 | Crystallography | 2 | 46 | 2408 | 1631 |
| 651 | reasoning | 1 | 46 | 849 | 546 |
| 651 | X-ray crystallography | 1 | 46 | 1101 | 754 |
| 651 | Hospitals | 4 | 46 | 780 | 1230 |
| 651 | Brain damage | 4 | 46 | 426 | 838 |
| 651 | drug toxicity | 3 | 46 | 500 | 929 |
| 661 | Accreditation | 1 | 45 | 196 | 70 |
| 661 | optical instruments | 2 | 45 | 608 | 608 |
| 661 | Genetic markers | 2 | 45 | 414 | 469 |
| 661 | optical phenomena | 2 | 45 | 171 | 195 |
| 665 | Eating Disorders | 4 | 44 | 912 | 1489 |
| 665 | Feeding and Eating Disorders | 4 | 44 | 871 | 1437 |
| 665 | teratogenic agents | 4 | 44 | 169 | 307 |
| 668 | Altitude Sickness | 3 | 43 | 146 | 244 |
| 668 | Altitude | 3 | 43 | 146 | 244 |
| 668 | Antigens | 7 | 43 | 713 | 1606 |
| 668 | drug development | 6 | 43 | 876 | 2603 |
| 672 | Solar power plants | 1 | 42 | 452 | 470 |
| 672 | biofuels | 1 | 42 | 636 | 905 |
| 672 | Photovoltaic Cells | 1 | 42 | 454 | 470 |
| 672 | Synapses | 3 | 42 | 324 | 582 |
| 676 | Spintronics | 2 | 41 | 66 | 45 |
| 676 | Neuroplasticity | 4 | 41 | 314 | 777 |
| 676 | neuronal plasticity | 4 | 41 | 239 | 690 |
| 676 | management | 5 | 41 | 3258 | 4821 |
| 676 | Hippocampus | 1 | 41 | 646 | 759 |
| 676 | Cell metabolism | 1 | 41 | 1518 | 1770 |
| 682 | Genetic disorders | 1 | 40 | 1084 | 1036 |
| 682 | Organometallic compounds | 2 | 40 | 1730 | 1825 |
| 682 | X-rays | 9 | 40 | 346 | 989 |
| 682 | animal diseases | 1 | 40 | 1022 | 879 |
| 682 | scientific societies | 1 | 40 | 1810 | 1538 |
| 687 | Energy Policy | 1 | 39 | 4689 | 4792 |
| 687 | ecological risk assessment | 3 | 39 | 274 | 528 |
| 687 | Interferons | 2 | 39 | 453 | 606 |
| 687 | internet | 2 | 39 | 1841 | 1842 |
| 687 | sex differences | 1 | 39 | 345 | 361 |
| 687 | Entomology | 4 | 39 | 2580 | 3064 |
| 693 | Immunohematology | 6 | 38 | 74 | 77 |
| 693 | Developmental Neurobiology | 2 | 38 | 892 | 1017 |
| 693 | Blood group antigens | 6 | 38 | 42 | 47 |
| 693 | Nutrigenomics | 1 | 38 | 266 | 319 |
| 693 | Granular materials | 3 | 38 | 661 | 1139 |
| 693 | Parkinson's disease | 2 | 38 | 358 | 571 |
| 693 | immunoassay | 2 | 38 | 305 | 242 |
| 693 | Psychiatric hospitals | 3 | 38 | 404 | 554 |
| 701 | Probiotics | 4 | 36 | 121 | 450 |
| 702 | Immunohistochemistry | 3 | 35 | 234 | 320 |
| 702 | Health risk communication | 1 | 35 | 169 | 149 |
| 702 | Transplantation | 2 | 35 | 1863 | 2347 |
| 705 | Microbial Genetics | 1 | 34 | 748 | 696 |
| 705 | Microfabrication | 2 | 34 | 600 | 694 |
| 705 | Bioinorganic chemistry | 3 | 34 | 1666 | 2385 |
| 705 | phytopathogenic bacteria | 1 | 34 | 502 | 601 |
| 705 | ozone | 3 | 34 | 115 | 198 |
| 705 | Plant diseases | 1 | 34 | 3329 | 2905 |
| 711 | Ergonomics | 3 | 33 | 1282 | 1637 |
| 711 | Solid State Chemistry | 2 | 33 | 3281 | 3486 |
| 711 | Freeze-Drying | 1 | 33 | 1111 | 840 |
| 711 | Hypothermia | 1 | 33 | 1111 | 840 |
| 711 | Freeze Drying | 1 | 33 | 1111 | 840 |
| 711 | Glass | 3 | 33 | 1393 | 1989 |
| 711 | biological agents | 11 | 33 | 232 | 472 |
| 711 | pharmaceutical industry | 4 | 33 | 562 | 1045 |
| 711 | Human biology | 1 | 33 | 1386 | 1136 |
| 720 | Social Sciences | 5 | 32 | 3683 | 4898 |
| 720 | Stochastic Processes | 4 | 32 | 910 | 1330 |
| 720 | Growth | 2 | 32 | 1753 | 2563 |
| 723 | Dietetics | 5 | 31 | 765 | 1341 |
| 723 | Geophysics | 2 | 31 | 4849 | 5488 |
| 723 | Atmospheric Chemistry | 1 | 31 | 1634 | 1892 |
| 723 | Atmospheric Physics | 2 | 31 | 2257 | 2794 |
| 723 | Immunogenetics | 5 | 31 | 698 | 1509 |
| 723 | Molecular evolution | 3 | 31 | 2229 | 3510 |
| 723 | Fluorescence spectroscopy | 1 | 31 | 611 | 582 |
| 723 | Drug discovery | 1 | 31 | 691 | 718 |
| 723 | Textile industry | 2 | 31 | 875 | 711 |
| 732 | Ceramics | 3 | 30 | 1852 | 2362 |
| 732 | Cardiac electrophysiology | 2 | 30 | 382 | 630 |
| 732 | Globalization | 3 | 30 | 606 | 1131 |
| 732 | Strategic planning | 1 | 30 | 1511 | 1366 |
| 732 | arrhythmia | 2 | 30 | 382 | 630 |
| 732 | Microscopy | 3 | 30 | 2142 | 2597 |
| 732 | international cooperation | 3 | 30 | 679 | 1289 |
| 732 | Chronic diseases | 1 | 30 | 1502 | 1711 |
| 740 | Genetic Counseling | 1 | 29 | 732 | 608 |
| 740 | Anti-inflammatory agents | 2 | 29 | 358 | 550 |
| 740 | Maternal health services | 2 | 29 | 683 | 996 |
| 740 | Child welfare | 2 | 29 | 1713 | 2051 |
| 740 | pottery | 2 | 29 | 1594 | 2013 |
| 740 | synthesis | 2 | 29 | 1544 | 1483 |
| 746 | Molecular recognition | 2 | 28 | 332 | 551 |
| 746 | Ceramic materials | 4 | 28 | 1341 | 2296 |
| 746 | Zeolites | 1 | 28 | 1661 | 1900 |
| 746 | Membranes | 2 | 28 | 2483 | 3487 |
| 750 | Economics | 3 | 27 | 4957 | 5378 |
| 750 | Hematopoietic stem cell transplantation | 3 | 27 | 555 | 1247 |
| 750 | calcification | 3 | 27 | 685 | 1338 |
| 750 | cough | 1 | 27 | 40 | 97 |
| 754 | Preoperative Care | 2 | 26 | 132 | 195 |
| 754 | perioperative care | 2 | 26 | 130 | 195 |
| 754 | air quality | 2 | 26 | 381 | 635 |
| 754 | Stress | 2 | 26 | 408 | 735 |
| 754 | Plant cells | 1 | 26 | 1932 | 2608 |
| 754 | Birth control | 1 | 26 | 1036 | 1200 |
| 760 | Audiology | 4 | 25 | 861 | 1542 |
| 760 | Crisis Intervention | 3 | 25 | 179 | 439 |
| 760 | Learning | 3 | 25 | 1639 | 2624 |
| 760 | Social work | 3 | 25 | 1821 | 2446 |
| 760 | DNA polymerases | 1 | 25 | 986 | 1561 |
| 765 | Production Engineering | 2 | 24 | 2758 | 3176 |
| 765 | Radiation Protection | 2 | 24 | 1138 | 1000 |
| 765 | Health Physics | 2 | 24 | 353 | 379 |
| 765 | radiation monitoring | 2 | 24 | 1033 | 946 |
| 765 | Educational measurement | 1 | 24 | 371 | 330 |
| 765 | sleep-wake cycle | 6 | 24 | 51 | 221 |
| 765 | Cerebrospinal fluid | 2 | 24 | 182 | 378 |
| 772 | Fluid Mechanics | 1 | 23 | 3062 | 2838 |
| 772 | Energy Storage | 1 | 23 | 2251 | 2313 |
| 772 | Soft Condensed Matter | 1 | 23 | 1914 | 2057 |
| 772 | Energy Harvesting | 1 | 23 | 815 | 1172 |
| 772 | Respiratory Infections | 1 | 23 | 848 | 930 |
| 772 | acupuncture | 4 | 23 | 207 | 261 |
| 772 | Radioisotopes | 4 | 23 | 1329 | 2070 |
| 772 | supercritical fluids | 1 | 23 | 753 | 967 |
| 772 | Vision | 1 | 23 | 1272 | 1474 |
| 772 | Influenza | 1 | 23 | 699 | 812 |
| 782 | Plant Biotechnology | 2 | 22 | 1191 | 1743 |
| 782 | Biological Systems | 3 | 22 | 877 | 1664 |
| 782 | Antiviral agents | 1 | 22 | 739 | 887 |
| 782 | Entropy | 2 | 22 | 1654 | 1982 |
| 782 | biological monitoring | 1 | 22 | 1152 | 1427 |
| 787 | Geology | 2 | 21 | 4136 | 4811 |
| 787 | Magnetic Resonance Imaging | 1 | 21 | 1220 | 1265 |
| 787 | Psycholinguistics | 4 | 21 | 952 | 1864 |
| 787 | Biochemical Genetics | 1 | 21 | 1090 | 782 |
| 787 | nursing ethics | 1 | 21 | 552 | 679 |
| 787 | Earth Sciences | 4 | 21 | 3493 | 5378 |
| 787 | Atomic spectroscopy | 1 | 21 | 2083 | 2049 |
| 787 | planning | 4 | 21 | 686 | 1568 |
| 795 | Neurolinguistics | 3 | 20 | 507 | 1054 |
| 795 | monoclonal antibodies | 4 | 20 | 155 | 482 |
| 795 | Heart Failure | 1 | 20 | 890 | 1153 |
| 795 | Microwaves | 1 | 20 | 1967 | 1496 |
| 799 | Social welfare | 2 | 19 | 861 | 1314 |
| 799 | Magnetic Materials | 1 | 19 | 2411 | 2542 |
| 799 | wind erosion | 1 | 19 | 258 | 394 |
| 799 | Bacteria | 1 | 19 | 808 | 1168 |
| 799 | Bacterial infections | 2 | 19 | 1434 | 2552 |
| 799 | Biomass | 2 | 19 | 965 | 1971 |
| 799 | Detectors | 2 | 19 | 1480 | 1844 |
| 806 | Medicinal Chemistry | 1 | 18 | 3 | 24 |
| 806 | emergency management | 1 | 18 | 1933 | 2177 |
| 806 | Mycology | 2 | 18 | 2390 | 3300 |
| 806 | aromatic plants | 1 | 18 | 498 | 425 |
| 806 | Fungi | 2 | 18 | 1480 | 2269 |
| 806 | computer networks | 1 | 18 | 4251 | 4117 |
| 806 | Intellectual disability | 2 | 18 | 1306 | 1852 |
| 806 | gastrointestinal tract | 1 | 18 | 685 | 1102 |
| 814 | Linguistics | 3 | 17 | 1834 | 2183 |
| 814 | Probability | 2 | 17 | 906 | 1493 |
| 814 | Risk Management | 2 | 17 | 1143 | 1928 |
| 814 | Signal Processing | 2 | 17 | 2832 | 3646 |
| 814 | Financial management | 2 | 17 | 784 | 1493 |
| 814 | Risk | 3 | 17 | 669 | 1515 |
| 814 | Blood vessels | 1 | 17 | 877 | 1083 |
| 814 | Pathogens | 2 | 17 | 124 | 364 |
| 814 | traffic safety | 2 | 17 | 462 | 815 |
| 823 | Industrial Engineering | 3 | 16 | 2315 | 3815 |
| 823 | Pediatric Nursing | 2 | 16 | 809 | 1205 |
| 823 | Disease management | 1 | 16 | 328 | 351 |
| 823 | Neuroanatomy | 2 | 16 | 357 | 755 |
| 823 | Computational Intelligence | 2 | 16 | 1514 | 2058 |
| 823 | Neuromuscular diseases | 2 | 16 | 1067 | 1760 |
| 829 | Optoelectronics | 1 | 15 | 1198 | 1025 |
| 829 | Human Rights | 1 | 15 | 1235 | 1225 |
| 829 | Fiber Optics | 1 | 15 | 1039 | 971 |
| 829 | protein | 5 | 15 | 1240 | 2767 |
| 829 | Post-traumatic stress disorder | 1 | 15 | 1547 | 1951 |
| 829 | amino acids | 1 | 15 | 1316 | 1745 |
| 829 | Aquaculture | 1 | 15 | 2583 | 2883 |
| 829 | Zoonoses | 1 | 15 | 721 | 1050 |
| 837 | Horticulture | 1 | 14 | 1576 | 1709 |
| 837 | Electrocardiography | 11 | 14 | 171 | 878 |
| 837 | Cell adhesion | 2 | 14 | 206 | 635 |
| 837 | innovation | 1 | 14 | 1219 | 1629 |
| 837 | Safety management | 3 | 14 | 717 | 1639 |
| 837 | Insects | 2 | 14 | 2161 | 2875 |
| 837 | drug abuse | 2 | 14 | 1025 | 1721 |
| 837 | Muscle contraction | 1 | 14 | 741 | 560 |
| 845 | Plasma chemistry | 1 | 13 | 828 | 1070 |
| 845 | Rheology | 1 | 13 | 1179 | 1387 |
| 845 | Food texture | 1 | 13 | 386 | 556 |
| 845 | Qualitative Research | 1 | 13 | 1019 | 1193 |
| 845 | Plasma polymerization | 1 | 13 | 578 | 745 |
| 845 | peptides | 2 | 13 | 1433 | 2245 |
| 845 | Cell surface receptors | 1 | 13 | 337 | 482 |
| 852 | Distance Education | 2 | 12 | 689 | 1252 |
| 852 | health behavior | 3 | 12 | 1227 | 2816 |
| 852 | Apoptosis | 1 | 12 | 648 | 1086 |
| 852 | neurotoxins | 1 | 12 | 648 | 1086 |
| 852 | Neurotoxic agents | 1 | 12 | 648 | 1086 |
| 852 | Chemical processes | 1 | 12 | 1308 | 1587 |
| 852 | Arthropods | 1 | 12 | 588 | 756 |
| 852 | Antibodies | 3 | 12 | 869 | 1845 |
| 852 | Chemical industry | 2 | 12 | 2008 | 2839 |
| 852 | mental processes | 1 | 12 | 744 | 876 |
| 852 | transport vesicles | 1 | 12 | 565 | 1066 |
| 852 | food industry | 3 | 12 | 776 | 1836 |
| 852 | lasers | 3 | 12 | 2402 | 3520 |
| 852 | Liquid chromatography | 4 | 12 | 500 | 1209 |
| 852 | Nerve regeneration | 1 | 12 | 648 | 1086 |
| 867 | Virtual reality | 1 | 11 | 828 | 1026 |
| 867 | Socialization | 1 | 11 | 988 | 1418 |
| 867 | Electron Microscopy | 1 | 11 | 876 | 1098 |
| 867 | Mechanics | 6 | 11 | 1091 | 2590 |
| 867 | role | 1 | 11 | 801 | 1246 |
| 867 | Criminal investigation | 1 | 11 | 455 | 541 |
| 873 | Adult Education | 2 | 10 | 879 | 1284 |
| 873 | Quantum electronics | 2 | 10 | 1627 | 2136 |
| 873 | Neurovirology | 2 | 10 | 385 | 882 |
| 873 | Animal Nutrition | 1 | 10 | 1100 | 1415 |
| 873 | Forensic Psychiatry | 3 | 10 | 688 | 1395 |
| 873 | Cell migration | 1 | 10 | 200 | 479 |
| 873 | Happiness | 1 | 10 | 953 | 1414 |
| 873 | Optoelectronic devices | 2 | 10 | 1336 | 1789 |
| 873 | cell movement | 1 | 10 | 520 | 874 |
| 873 | human development | 1 | 10 | 1458 | 2014 |
| 883 | Fermentation | 1 | 9 | 610 | 791 |
| 883 | Thin Films | 3 | 9 | 710 | 1506 |
| 883 | Plant genetic engineering | 2 | 9 | 1348 | 2377 |
| 886 | Lymphoma | 2 | 8 | 1213 | 1220 |
| 886 | Multiple Myeloma | 2 | 8 | 1206 | 1194 |
| 886 | Metabolic syndrome | 1 | 8 | 629 | 1082 |
| 886 | animals | 2 | 8 | 1928 | 3115 |
| 886 | cardiac catheterization | 1 | 8 | 1595 | 1899 |
| 886 | Computer Literacy | 1 | 8 | 530 | 812 |
| 886 | color | 1 | 8 | 608 | 831 |
| 886 | eugenics | 1 | 8 | 1436 | 2051 |
| 886 | Disease | 1 | 8 | 826 | 1535 |
| 895 | General Surgery | 2 | 7 | 1196 | 1978 |
| 895 | cosmic rays | 1 | 7 | 1000 | 1309 |
| 895 | Lipid metabolism | 1 | 7 | 925 | 1498 |
| 895 | Nutritional support | 1 | 7 | 395 | 677 |
| 895 | Lipid | 1 | 7 | 931 | 1503 |
| 895 | Human Resources | 1 | 7 | 874 | 1443 |
| 895 | tomography | 2 | 7 | 630 | 1107 |
| 895 | phototherapy | 1 | 7 | 578 | 675 |
| 903 | Pediatric Dermatology | 1 | 6 | 1005 | 1373 |
| 903 | Early Childhood Education | 1 | 6 | 1103 | 1443 |
| 903 | Solid State Physics | 3 | 6 | 4252 | 6665 |
| 903 | Forensic Psychology | 2 | 6 | 607 | 1145 |
| 903 | ethnicity | 1 | 6 | 1535 | 1940 |
| 903 | dual diagnosis | 1 | 6 | 227 | 362 |
| 903 | health and race | 1 | 6 | 553 | 1021 |
| 903 | Holistic Health | 1 | 6 | 1089 | 1636 |
| 903 | psychophysics | 1 | 6 | 654 | 880 |
| 903 | ethnic groups | 1 | 6 | 696 | 1188 |
| 903 | textile fibers | 1 | 6 | 1096 | 1376 |
| 903 | child abuse | 1 | 6 | 1717 | 2572 |
| 903 | Birds | 1 | 6 | 2139 | 2489 |
| 903 | California | 1 | 6 | 892 | 1199 |
| 903 | Organelle biogenesis | 1 | 6 | 487 | 757 |
| 918 | Animal Biotechnology | 1 | 5 | 397 | 709 |
| 918 | Emergency Nursing | 1 | 5 | 405 | 709 |
| 918 | Dental Public Health | 1 | 5 | 395 | 622 |
| 918 | Adolescent Psychology | 1 | 5 | 1753 | 2557 |
| 918 | Calorimetry | 1 | 5 | 2238 | 3026 |
| 918 | Luminescence | 1 | 5 | 2400 | 3206 |
| 918 | technical education | 3 | 5 | 557 | 1492 |
| 918 | Thermal analysis | 1 | 5 | 2238 | 3026 |
| 926 | Philosophy | 1 | 4 | 2851 | 2415 |
| 926 | Data Mining | 1 | 4 | 3625 | 5301 |
| 926 | Economic History | 1 | 4 | 6425 | 7119 |
| 926 | Plant Taxonomy | 1 | 4 | 827 | 1162 |
| 926 | Amyotrophic Lateral Sclerosis | 1 | 4 | 575 | 963 |
| 926 | Frontotemporal lobar degeneration | 1 | 4 | 452 | 778 |
| 926 | Transportation | 2 | 4 | 2305 | 4046 |
| 926 | Climate change | 1 | 4 | 1982 | 3114 |
| 926 | economic policy | 1 | 4 | 4603 | 5282 |
| 926 | Ferroelectricity | 1 | 4 | 1661 | 1968 |
| 926 | Multimedia Systems | 1 | 4 | 3217 | 4042 |
| 926 | Animal welfare | 1 | 4 | 744 | 1257 |
| 926 | Roads | 1 | 4 | 1398 | 1880 |
| 926 | Futures | 1 | 4 | 677 | 1023 |
| 926 | Heterocyclic compounds | 1 | 4 | 1890 | 2521 |
| 926 | Scanning electron microscopy | 1 | 4 | 455 | 811 |
| 926 | language | 1 | 4 | 1537 | 2011 |
| 943 | Systems Engineering | 1 | 3 | 4080 | 5217 |
| 943 | Organizational learning | 1 | 3 | 1302 | 2004 |
| 943 | Heterocyclic chemistry | 2 | 3 | 824 | 1674 |
| 943 | Knowledge management | 1 | 3 | 1556 | 2260 |
| 943 | Environmental Geochemistry | 1 | 3 | 1253 | 2189 |
| 943 | Asymmetric synthesis | 2 | 3 | 176 | 649 |
| 943 | glycoproteins | 1 | 3 | 1013 | 1697 |
| 943 | Sulfur | 1 | 3 | 258 | 484 |
| 943 | Glycoconjugates | 1 | 3 | 1013 | 1697 |
| 943 | Oligosaccharide | 1 | 3 | 697 | 1226 |
| 943 | Telecommunication | 1 | 3 | 4265 | 5249 |
| 943 | Carbohydrates | 1 | 3 | 971 | 1571 |
| 943 | government | 1 | 3 | 1457 | 1621 |
| 943 | telecommunication in education | 1 | 3 | 177 | 301 |
| 943 | Longevity | 1 | 3 | 457 | 990 |
| 943 | educational planning | 1 | 3 | 857 | 1415 |
| 943 | rejuvenation | 1 | 3 | 339 | 772 |
| 943 | Minerals | 1 | 3 | 1635 | 2646 |
| 943 | glycolipids | 1 | 3 | 1013 | 1697 |
| 962 | Hydrology | 2 | 2 | 3603 | 6269 |
| 962 | Experimental Psychology | 1 | 2 | 1036 | 1467 |
| 962 | Neonatal Nursing | 1 | 2 | 373 | 626 |
| 962 | Inorganic Chemistry | 1 | 2 | 325 | 847 |
| 962 | Radiography | 2 | 2 | 1016 | 2216 |
| 962 | Computational Linguistics | 1 | 2 | 1272 | 1947 |
| 962 | Psychometrics | 1 | 2 | 823 | 1306 |
| 962 | Neonatal intensive care | 1 | 2 | 309 | 514 |
| 962 | Powder Metallurgy | 1 | 2 | 803 | 1149 |
| 962 | Feminist theory | 1 | 2 | 421 | 622 |
| 962 | Helminthology | 1 | 2 | 358 | 651 |
| 962 | Feminism | 1 | 2 | 1131 | 1672 |
| 962 | Mass Media | 1 | 2 | 1833 | 2196 |
| 962 | micromechanics | 1 | 2 | 1229 | 1983 |
| 962 | East Asia | 1 | 2 | 1402 | 2136 |
| 962 | Korea | 1 | 2 | 831 | 1332 |
| 962 | Communication | 1 | 2 | 3995 | 5535 |
| 962 | Library Science | 1 | 2 | 2728 | 3288 |
| 962 | libraries | 1 | 2 | 1626 | 1770 |
| 962 | Statistical models | 1 | 2 | 246 | 500 |
| 962 | Helminths | 1 | 2 | 358 | 651 |
| 962 | Philippines | 1 | 2 | 320 | 569 |
| 962 | Insect biochemistry | 1 | 2 | 897 | 1454 |
| 985 | Humanities | 1 | 1 | 3980 | 5488 |
| 985 | Information Theory | 1 | 1 | 2242 | 3213 |
| 985 | Electrical Engineering | 2 | 1 | 4842 | 7232 |
| 985 | Cognitive Psychology | 1 | 1 | 841 | 1356 |
| 985 | Social Choice Theory | 1 | 1 | 465 | 734 |
| 985 | Cybernetics | 1 | 1 | 2621 | 4006 |
| 985 | Plant Genetics | 1 | 1 | 1312 | 2127 |
| 985 | Pediatric Hematology | 1 | 1 | 913 | 1466 |
| 985 | Tissue Engineering | 2 | 1 | 499 | 1332 |
| 985 | Regenerative Medicine | 1 | 1 | 375 | 826 |
| 985 | Welfare Economics | 1 | 1 | 810 | 1221 |
| 985 | Liquid Crystals | 1 | 1 | 1664 | 2293 |
| 985 | Intelligence | 1 | 1 | 504 | 867 |
| 985 | Religion and Psychology | 1 | 1 | 1196 | 2113 |
| 985 | Investment analysis | 1 | 1 | 1627 | 2439 |
| 985 | Minority Health | 1 | 1 | 212 | 549 |