| 1 | Medicine | 1,910 | 48.2K | 182 | 389 |
| 2 | Biochemistry | 1,075 | 32.8K | 414 | 517 |
| 3 | Science | 882 | 29.0K | 419 | 954 |
| 4 | Research | 960 | 26.0K | 257 | 379 |
| 5 | Molecular Biology | 815 | 25.1K | 334 | 608 |
| 6 | Chemistry | 633 | 17.8K | 689 | 1018 |
| 7 | Pharmacology | 512 | 16.4K | 267 | 286 |
| 8 | Biology | 582 | 15.3K | 608 | 1496 |
| 9 | Biophysics | 584 | 15.3K | 259 | 334 |
| 10 | Cancer | 306 | 11.3K | 271 | 380 |
| 11 | Toxicology | 274 | 10.2K | 295 | 283 |
| 12 | Biocompatible Materials | 212 | 10.0K | 332 | 379 |
| 13 | Biotechnology | 253 | 8.6K | 504 | 704 |
| 14 | Microbiology | 317 | 8.3K | 585 | 1034 |
| 15 | Nutrition | 299 | 8.2K | 212 | 357 |
| 16 | Cell Biology | 233 | 8.1K | 412 | 820 |
| 17 | biomedicine | 206 | 7.1K | 10 | 5 |
| 18 | Neurology | 216 | 6.8K | 822 | 1106 |
| 19 | Agricultural Chemistry | 119 | 5.8K | 211 | 142 |
| 20 | Physiology | 218 | 5.6K | 397 | 596 |
| 21 | Oncology | 55 | 5.5K | 434 | 431 |
| 22 | Cytology | 171 | 5.4K | 593 | 1087 |
| 23 | Psychiatry | 144 | 5.0K | 615 | 773 |
| 24 | environmental pollution | 156 | 4.7K | 415 | 593 |
| 25 | Physics | 54 | 4.6K | 3666 | 3132 |
| 26 | Alternative Medicine | 173 | 4.5K | 46 | 37 |
| 27 | complementary therapies | 173 | 4.5K | 46 | 38 |
| 28 | Immunity | 191 | 4.1K | 120 | 594 |
| 29 | infection | 200 | 4.1K | 29 | 141 |
| 30 | Public Health | 174 | 4.0K | 633 | 901 |
| 31 | Nanotechnology | 111 | 4.0K | 936 | 1086 |
| 32 | Pharmaceutical Chemistry | 121 | 3.9K | 554 | 628 |
| 33 | Oncogenes | 61 | 3.8K | 188 | 245 |
| 34 | Environmental monitoring | 134 | 3.8K | 296 | 519 |
| 35 | Pollution | 111 | 3.7K | 889 | 1227 |
| 36 | Pharmacognosy | 102 | 3.6K | 116 | 134 |
| 37 | Environmental Health | 117 | 3.6K | 758 | 1018 |
| 38 | software | 135 | 3.4K | 4 | 11 |
| 39 | Bioengineering | 101 | 3.4K | 629 | 981 |
| 40 | Clinical Chemistry | 87 | 3.3K | 444 | 456 |
| 41 | Obstetrics | 245 | 3.3K | 180 | 329 |
| 42 | biological factors | 104 | 3.1K | 72 | 125 |
| 43 | rehabilitation | 108 | 3.0K | 192 | 253 |
| 44 | Public Policy | 34 | 3.0K | 405 | 136 |
| 45 | Evidence-Based Medicine | 126 | 3.0K | 38 | 32 |
| 46 | Immunology | 128 | 3.0K | 691 | 1168 |
| 47 | Biochemical Engineering | 53 | 2.9K | 729 | 951 |
| 48 | Chemical Engineering | 77 | 2.9K | 1068 | 1074 |
| 49 | System analysis | 26 | 2.9K | 788 | 160 |
| 50 | Environmental Toxicology | 101 | 2.8K | 156 | 342 |
| 51 | China | 191 | 2.7K | 158 | 218 |
| 52 | free radicals | 60 | 2.7K | 198 | 247 |
| 53 | Materials | 93 | 2.7K | 1501 | 1584 |
| 54 | Pathology | 75 | 2.7K | 470 | 560 |
| 55 | Systems Analysis | 13 | 2.7K | 458 | 28 |
| 56 | Food | 89 | 2.7K | 372 | 439 |
| 57 | Geriatrics | 107 | 2.6K | 419 | 491 |
| 58 | Environment | 44 | 2.5K | 1518 | 1695 |
| 59 | Medical Oncology | 66 | 2.5K | 485 | 397 |
| 60 | Infertility | 71 | 2.4K | 177 | 203 |
| 60 | fertility | 71 | 2.4K | 185 | 214 |
| 62 | Medicinal plants | 62 | 2.4K | 127 | 137 |
| 63 | Therapeutics | 38 | 2.4K | 477 | 351 |
| 64 | Epidemiology | 121 | 2.3K | 490 | 829 |
| 65 | Ecology | 76 | 2.2K | 1528 | 2067 |
| 66 | carcinogens | 48 | 2.2K | 120 | 120 |
| 67 | Biomedical Engineering | 130 | 2.1K | 586 | 1066 |
| 68 | cell physiology | 63 | 2.0K | 227 | 418 |
| 69 | Analytical Chemistry | 73 | 2.0K | 1070 | 1123 |
| 70 | Genetic engineering | 24 | 1.9K | 783 | 463 |
| 71 | Liver diseases | 33 | 1.9K | 496 | 593 |
| 72 | Metabolism | 70 | 1.9K | 699 | 1052 |
| 73 | United States | 63 | 1.9K | 1197 | 1054 |
| 74 | Environmental pollutants | 90 | 1.9K | 172 | 365 |
| 75 | Medical genetics | 41 | 1.9K | 1089 | 1207 |
| 76 | Mental Disorders | 69 | 1.9K | 595 | 942 |
| 77 | Colloids | 50 | 1.8K | 1092 | 1070 |
| 78 | drug therapy | 57 | 1.8K | 555 | 553 |
| 79 | Stem cells | 32 | 1.8K | 503 | 389 |
| 80 | Mental illness | 54 | 1.8K | 416 | 638 |
| 81 | Psychophysiology | 37 | 1.8K | 1024 | 913 |
| 82 | Herbal medicine | 53 | 1.8K | 39 | 43 |
| 83 | Endocrinology | 68 | 1.7K | 779 | 1202 |
| 83 | toxicity testing | 73 | 1.7K | 25 | 61 |
| 85 | Materials Science | 50 | 1.7K | 1503 | 1459 |
| 86 | Hematology | 55 | 1.7K | 1276 | 1165 |
| 87 | Phytotherapy | 70 | 1.7K | 25 | 41 |
| 88 | Quality of life | 22 | 1.7K | 426 | 226 |
| 89 | Dermatology | 71 | 1.7K | 315 | 385 |
| 90 | Cell death | 49 | 1.6K | 193 | 413 |
| 91 | drugs | 44 | 1.6K | 460 | 357 |
| 92 | Genetics | 40 | 1.6K | 1372 | 1677 |
| 93 | Virology | 40 | 1.6K | 1086 | 1645 |
| 94 | Dentistry | 161 | 1.5K | 19 | 52 |
| 95 | Critical Care Medicine | 28 | 1.5K | 579 | 672 |
| 96 | Cell differentiation | 21 | 1.5K | 823 | 775 |
| 97 | Critical Care | 26 | 1.5K | 646 | 690 |
| 98 | Natural history | 8 | 1.5K | 3468 | 3386 |
| 99 | Surface Chemistry | 58 | 1.4K | 976 | 1204 |
| 100 | Psychopharmacology | 24 | 1.4K | 701 | 573 |
| 100 | Antibacterial agents | 26 | 1.4K | 105 | 67 |
| 102 | cytokines | 66 | 1.4K | 92 | 202 |
| 103 | Schizophrenia | 41 | 1.4K | 264 | 322 |
| 104 | Carcinogenesis | 26 | 1.4K | 250 | 216 |
| 105 | Sleep | 90 | 1.4K | 208 | 415 |
| 106 | Psychology | 50 | 1.4K | 1340 | 1429 |
| 107 | Water pollution | 16 | 1.4K | 1389 | 859 |
| 108 | Medical Microbiology | 48 | 1.4K | 594 | 960 |
| 109 | Sleep Disorders | 88 | 1.4K | 210 | 409 |
| 110 | Pharmacy | 50 | 1.3K | 435 | 466 |
| 110 | Neurophysiology | 48 | 1.3K | 928 | 1256 |
| 112 | Urology | 53 | 1.3K | 507 | 604 |
| 113 | Obesity | 38 | 1.3K | 587 | 696 |
| 114 | natural products | 55 | 1.3K | 218 | 287 |
| 115 | Neurochemistry | 48 | 1.3K | 679 | 888 |
| 116 | Aging | 86 | 1.3K | 494 | 818 |
| 117 | cell interaction | 51 | 1.3K | 89 | 202 |
| 118 | Oxidative stress | 34 | 1.3K | 136 | 230 |
| 119 | mutagens | 19 | 1.3K | 281 | 232 |
| 120 | Cardiovascular system | 16 | 1.3K | 906 | 844 |
| 121 | Attention | 43 | 1.2K | 461 | 489 |
| 122 | Physical Therapy | 45 | 1.2K | 261 | 348 |
| 123 | Perception | 43 | 1.2K | 519 | 578 |
| 124 | Visual Perception | 42 | 1.2K | 455 | 499 |
| 125 | Memory | 41 | 1.2K | 533 | 607 |
| 126 | food technology | 36 | 1.2K | 657 | 661 |
| 127 | Industrial Microbiology | 15 | 1.2K | 877 | 563 |
| 128 | Clinical Pharmacology | 41 | 1.2K | 295 | 301 |
| 129 | Geriatric Psychiatry | 35 | 1.2K | 214 | 214 |
| 130 | Diet | 40 | 1.1K | 605 | 827 |
| 131 | Inflammation | 47 | 1.1K | 121 | 282 |
| 132 | Polymers | 49 | 1.1K | 1525 | 1654 |
| 133 | Drug delivery systems | 22 | 1.1K | 457 | 452 |
| 134 | Bioorganic chemistry | 52 | 1.1K | 670 | 1000 |
| 135 | Medical Technology | 46 | 1.0K | 210 | 315 |
| 136 | Genetic regulation | 9 | 1.0K | 793 | 520 |
| 137 | cloning | 8 | 1.0K | 462 | 274 |
| 138 | Emergency Medicine | 93 | 1.0K | 166 | 345 |
| 139 | Pediatrics | 31 | 1.0K | 989 | 1192 |
| 140 | Clinical Biochemistry | 26 | 1.0K | 404 | 303 |
| 141 | Reproduction | 47 | 998 | 633 | 797 |
| 142 | Educational Technology | 21 | 996 | 432 | 234 |
| 143 | Nanostructured Materials | 34 | 984 | 1169 | 1245 |
| 144 | Immunotherapy | 43 | 972 | 394 | 852 |
| 145 | Water | 11 | 936 | 1561 | 1153 |
| 146 | Nursing | 57 | 934 | 258 | 299 |
| 147 | Botany | 38 | 932 | 1470 | 1773 |
| 148 | Food Microbiology | 21 | 931 | 400 | 431 |
| 149 | viruses | 16 | 925 | 795 | 818 |
| 150 | Bioinformatics | 27 | 917 | 673 | 856 |
| 151 | Behavior | 28 | 912 | 1201 | 1497 |
| 152 | Human genetics | 9 | 902 | 1826 | 2343 |
| 153 | Genetic therapy | 24 | 898 | 416 | 491 |
| 154 | Computational Biology | 29 | 896 | 908 | 1106 |
| 155 | Thrombosis | 22 | 894 | 441 | 416 |
| 156 | Brain | 42 | 878 | 916 | 1273 |
| 157 | miniaturization | 10 | 850 | 1195 | 901 |
| 158 | dietary supplements | 38 | 848 | 44 | 120 |
| 159 | Biopharmaceutics | 13 | 845 | 551 | 285 |
| 160 | Biomass Energy | 8 | 836 | 1849 | 1096 |
| 161 | Parenteral nutrition | 34 | 834 | 229 | 458 |
| 162 | Organic Chemistry | 34 | 833 | 1232 | 1290 |
| 163 | biochemical markers | 33 | 824 | 79 | 65 |
| 164 | Asia | 45 | 823 | 478 | 441 |
| 165 | Respiration | 37 | 821 | 402 | 619 |
| 166 | Cell communication | 40 | 819 | 54 | 167 |
| 167 | Chemotherapy | 27 | 815 | 464 | 460 |
| 168 | Immunopharmacology | 33 | 804 | 173 | 201 |
| 169 | human behavior | 19 | 787 | 1048 | 1289 |
| 170 | Nanostructures | 25 | 756 | 669 | 894 |
| 171 | Bipolar Disorder | 14 | 755 | 156 | 142 |
| 172 | Health | 37 | 749 | 587 | 780 |
| 172 | Metabolic diseases | 31 | 749 | 943 | 1527 |
| 174 | Carbon | 4 | 741 | 1412 | 636 |
| 175 | Genomics | 28 | 732 | 1265 | 1549 |
| 176 | Hypertension | 11 | 710 | 1170 | 1132 |
| 177 | Information Science | 25 | 703 | 755 | 832 |
| 178 | arthritis | 16 | 692 | 689 | 781 |
| 179 | medical education | 53 | 690 | 367 | 568 |
| 180 | Psychosomatic Medicine | 20 | 687 | 292 | 356 |
| 181 | Environmental Engineering | 22 | 677 | 1613 | 1819 |
| 181 | Technology | 39 | 677 | 1262 | 1510 |
| 183 | pain | 29 | 673 | 436 | 706 |
| 184 | Orthopedics | 38 | 671 | 468 | 679 |
| 185 | Oxidation-reduction | 16 | 658 | 284 | 494 |
| 186 | nanoscience | 23 | 639 | 1229 | 1566 |
| 187 | Enteral nutrition | 23 | 632 | 242 | 417 |
| 188 | Health Services Research | 25 | 625 | 534 | 593 |
| 189 | nucleic acids | 13 | 624 | 1077 | 1239 |
| 190 | Cellular senescence | 18 | 618 | 165 | 241 |
| 191 | Sexual health | 24 | 617 | 208 | 217 |
| 192 | alcoholism | 29 | 615 | 493 | 672 |
| 193 | Nervous system | 22 | 609 | 1091 | 1555 |
| 194 | cell adhesion molecules | 33 | 604 | 37 | 109 |
| 195 | Chromatographic analysis | 36 | 601 | 420 | 542 |
| 196 | Combinatorial chemistry | 5 | 600 | 772 | 355 |
| 197 | Biosensors | 15 | 599 | 532 | 715 |
| 197 | Bioelectronics | 15 | 599 | 429 | 634 |
| 199 | Systems Biology | 20 | 598 | 548 | 543 |
| 199 | Diabetes | 25 | 598 | 969 | 1514 |
| 201 | Ophthalmology | 29 | 596 | 643 | 861 |
| 202 | disabilities | 35 | 587 | 100 | 168 |
| 203 | Diabetes mellitus | 22 | 575 | 971 | 1492 |
| 204 | Diagnostic microbiology | 13 | 569 | 751 | 1031 |
| 205 | Neurobiology | 20 | 568 | 894 | 1264 |
| 206 | gene mapping | 15 | 565 | 1050 | 1235 |
| 207 | Health Education | 42 | 551 | 436 | 688 |
| 208 | environmental protection | 32 | 550 | 1020 | 1746 |
| 209 | Cardiovascular diseases | 38 | 547 | 426 | 714 |
| 210 | Pharmacogenetics | 17 | 545 | 427 | 547 |
| 211 | Parasitology | 39 | 541 | 654 | 1023 |
| 212 | Tropical Medicine | 26 | 540 | 547 | 593 |
| 213 | Hormones | 18 | 536 | 580 | 722 |
| 214 | Green Chemistry | 11 | 535 | 1010 | 1036 |
| 215 | Food additives | 8 | 525 | 785 | 513 |
| 216 | Microbial Ecology | 15 | 523 | 1219 | 1625 |
| 217 | Pacific Islands | 22 | 518 | 45 | 20 |
| 218 | Adsorption | 2 | 517 | 316 | 22 |
| 219 | Parasitic Diseases | 35 | 516 | 556 | 1092 |
| 219 | Alzheimer's disease | 24 | 516 | 632 | 594 |
| 221 | Environmental Microbiology | 12 | 507 | 726 | 856 |
| 221 | Biomarkers | 14 | 507 | 88 | 39 |
| 223 | Long-Term Care | 10 | 505 | 290 | 291 |
| 223 | Long-term care facilities | 10 | 505 | 287 | 291 |
| 225 | Chromosome mapping | 13 | 504 | 1024 | 1110 |
| 226 | Hemostasis | 13 | 503 | 417 | 274 |
| 227 | Electrophoresis | 18 | 499 | 677 | 674 |
| 228 | environmental exposure | 35 | 497 | 377 | 877 |
| 229 | Vaccines | 25 | 493 | 695 | 972 |
| 230 | blood transfusion | 23 | 492 | 260 | 283 |
| 231 | Dementia | 19 | 481 | 711 | 559 |
| 232 | Histochemistry | 18 | 479 | 410 | 405 |
| 233 | Andrology | 19 | 478 | 195 | 218 |
| 234 | polymerization | 24 | 476 | 1884 | 2027 |
| 235 | Orthopedic Surgery | 21 | 475 | 267 | 376 |
| 236 | Medical Laboratory Science | 13 | 472 | 1103 | 1146 |
| 237 | Electrochemistry | 54 | 471 | 1175 | 1934 |
| 237 | histological techniques | 11 | 471 | 355 | 395 |
| 239 | Signal Transduction | 10 | 465 | 889 | 954 |
| 239 | Neuroimmunology | 11 | 465 | 379 | 427 |
| 241 | Cytogenetics | 9 | 458 | 1156 | 1262 |
| 242 | hydrocolloids | 5 | 456 | 518 | 401 |
| 243 | Adolescent | 14 | 453 | 1161 | 989 |
| 244 | Substance Abuse | 23 | 448 | 533 | 684 |
| 245 | Education | 15 | 447 | 2120 | 1334 |
| 246 | Child | 19 | 442 | 1216 | 1215 |
| 246 | Radiobiology | 48 | 442 | 533 | 961 |
| 248 | Marine Biology | 4 | 439 | 2707 | 1483 |
| 249 | Spectrum analysis | 22 | 429 | 2255 | 2582 |
| 250 | Sustainable Engineering | 9 | 428 | 1027 | 916 |
| 251 | Optical materials | 5 | 425 | 2396 | 1691 |
| 252 | Neuropsychology | 20 | 419 | 1068 | 1370 |
| 253 | Primary health care | 14 | 416 | 885 | 755 |
| 254 | gene therapy | 13 | 414 | 601 | 827 |
| 255 | drug addiction | 19 | 410 | 477 | 716 |
| 256 | Nanoparticles | 12 | 401 | 1025 | 1047 |
| 257 | Chromatography | 16 | 396 | 710 | 663 |
| 258 | Cognition | 16 | 393 | 825 | 994 |
| 259 | soil microbiology | 8 | 392 | 1037 | 1167 |
| 260 | vascular diseases | 11 | 391 | 402 | 542 |
| 260 | Neurons | 2 | 391 | 1047 | 1071 |
| 262 | Virulence | 14 | 388 | 602 | 1145 |
| 263 | Surface-Active Agents | 22 | 385 | 225 | 548 |
| 263 | Surface properties | 22 | 385 | 250 | 605 |
| 265 | Neurosurgery | 18 | 382 | 528 | 696 |
| 266 | Sociology | 8 | 380 | 2249 | 1521 |
| 266 | Chronobiology | 12 | 380 | 120 | 122 |
| 266 | Circadian rhythms | 12 | 380 | 76 | 108 |
| 266 | biological clocks | 12 | 380 | 120 | 122 |
| 266 | Ultrasonics | 11 | 380 | 515 | 571 |
| 266 | circadian rhythm | 12 | 380 | 120 | 122 |
| 266 | biological rhythms | 12 | 380 | 114 | 120 |
| 266 | Informatics | 8 | 380 | 543 | 431 |
| 274 | Surgery | 34 | 379 | 747 | 1795 |
| 274 | Electronics | 20 | 379 | 1758 | 1607 |
| 274 | industrial hygiene | 19 | 379 | 353 | 275 |
| 277 | anesthesia | 20 | 378 | 108 | 62 |
| 278 | Psychoneuroimmunology | 9 | 377 | 394 | 459 |
| 279 | Photonics | 9 | 376 | 1182 | 1204 |
| 279 | Molecular structure | 8 | 376 | 1874 | 1390 |
| 281 | Leukemia | 4 | 375 | 1452 | 942 |
| 282 | Proteomics | 19 | 371 | 351 | 754 |
| 282 | Neurotoxicology | 7 | 371 | 357 | 268 |
| 284 | brain mapping | 8 | 369 | 471 | 531 |
| 285 | Developmental Biology | 13 | 368 | 1226 | 1712 |
| 286 | Environmental Chemistry | 4 | 362 | 2315 | 1568 |
| 287 | Gastrointestinal diseases | 25 | 357 | 108 | 211 |
| 288 | Genetic Toxicology | 5 | 355 | 387 | 293 |
| 289 | Cheminformatics | 5 | 348 | 260 | 268 |
| 290 | Diagnostic Imaging | 24 | 344 | 742 | 1244 |
| 291 | Muscles | 10 | 341 | 544 | 648 |
| 292 | Kidney diseases | 21 | 340 | 320 | 614 |
| 293 | Biometrics | 8 | 338 | 799 | 587 |
| 293 | Europe | 40 | 338 | 962 | 1678 |
| 295 | Australia | 23 | 337 | 625 | 785 |
| 296 | Plant physiology | 7 | 335 | 1664 | 1590 |
| 297 | locomotion | 13 | 334 | 312 | 349 |
| 297 | posture | 13 | 334 | 312 | 349 |
| 297 | gait | 13 | 334 | 312 | 349 |
| 297 | walking | 13 | 334 | 312 | 349 |
| 301 | Functional foods | 9 | 332 | 141 | 122 |
| 302 | Occupational Health | 21 | 331 | 363 | 452 |
| 302 | Health Policy | 19 | 331 | 1023 | 1443 |
| 302 | older people | 32 | 331 | 459 | 616 |
| 302 | Microorganisms | 5 | 331 | 1120 | 1028 |
| 302 | Steroids | 12 | 331 | 549 | 605 |
| 307 | occupational diseases | 18 | 330 | 318 | 529 |
| 308 | Embryology | 16 | 328 | 863 | 1404 |
| 309 | Environmental Policy | 13 | 325 | 1794 | 2576 |
| 309 | Sarcopenia | 8 | 325 | 179 | 287 |
| 311 | Environmental Law | 12 | 316 | 524 | 1045 |
| 312 | Pediatric Neurology | 7 | 314 | 883 | 1216 |
| 313 | Catalysis | 9 | 313 | 2644 | 2665 |
| 314 | Engineering | 10 | 308 | 3156 | 2121 |
| 315 | Elderly | 27 | 302 | 412 | 352 |
| 316 | Energy Conversion | 2 | 301 | 1618 | 1150 |
| 316 | Neuropharmacology | 10 | 301 | 274 | 336 |
| 318 | Microelectronics | 9 | 300 | 1298 | 1334 |
| 319 | Proteome | 13 | 297 | 628 | 977 |
| 320 | Information Systems | 15 | 293 | 533 | 760 |
| 321 | Women's health | 18 | 291 | 464 | 697 |
| 322 | Sonochemistry | 6 | 289 | 379 | 453 |
| 323 | Pharmaceutical Technology | 14 | 288 | 754 | 978 |
| 323 | enzymes | 9 | 288 | 1031 | 1069 |
| 325 | Medical innovations | 9 | 282 | 639 | 1391 |
| 326 | sanitation | 4 | 280 | 1673 | 1649 |
| 327 | Clinical Immunology | 19 | 278 | 553 | 957 |
| 328 | Infections | 16 | 277 | 531 | 1151 |
| 329 | Parasites | 19 | 276 | 601 | 926 |
| 330 | Smoking | 12 | 273 | 412 | 573 |
| 331 | Diagnosis | 17 | 272 | 143 | 214 |
| 331 | disease susceptibility | 17 | 272 | 59 | 116 |
| 331 | symptoms | 17 | 272 | 59 | 116 |
| 334 | Histology | 17 | 269 | 901 | 1494 |
| 335 | Drug design | 12 | 264 | 892 | 1220 |
| 336 | actuators | 17 | 260 | 986 | 1676 |
| 336 | transducers | 17 | 260 | 986 | 1676 |
| 336 | pigments | 7 | 260 | 536 | 416 |
| 339 | genome | 8 | 257 | 1218 | 1775 |
| 340 | Community Psychiatry | 15 | 256 | 432 | 753 |
| 340 | health planning | 23 | 256 | 697 | 1142 |
| 342 | Molecular Pharmacology | 11 | 255 | 376 | 695 |
| 342 | Water quality management | 8 | 255 | 1252 | 974 |
| 344 | Anatomy | 12 | 254 | 1243 | 1534 |
| 344 | Waste management | 7 | 254 | 1024 | 658 |
| 344 | Water Purification | 7 | 254 | 784 | 520 |
| 347 | Animal Behavior | 7 | 248 | 1542 | 1712 |
| 347 | Ethology | 7 | 248 | 1194 | 1468 |
| 347 | Composite Materials | 7 | 248 | 2131 | 2169 |
| 350 | Bones | 9 | 247 | 653 | 797 |
| 351 | Chemical analysis | 12 | 242 | 610 | 784 |
| 351 | drug evaluation | 11 | 242 | 706 | 818 |
| 353 | Geriatric Oncology | 9 | 238 | 319 | 451 |
| 353 | plant molecular biology | 4 | 238 | 1541 | 1587 |
| 353 | educational innovations | 3 | 238 | 587 | 230 |
| 356 | Immunopathology | 11 | 237 | 916 | 1193 |
| 357 | Electrophysiology | 24 | 236 | 368 | 679 |
| 358 | Palliative Care | 18 | 234 | 310 | 510 |
| 359 | Developmental Immunology | 14 | 233 | 266 | 541 |
| 359 | Plants | 3 | 233 | 2558 | 1788 |
| 361 | Marine Pollution | 2 | 230 | 1760 | 1029 |
| 362 | Host-parasite interactions | 8 | 229 | 944 | 1600 |
| 363 | Respiratory system | 11 | 225 | 290 | 490 |
| 363 | pollutants | 18 | 225 | 748 | 1632 |
| 363 | proteins | 16 | 225 | 1114 | 1719 |
| 366 | mutation | 2 | 221 | 997 | 587 |
| 367 | Pharmacokinetics | 7 | 219 | 667 | 658 |
| 367 | Sports Medicine | 23 | 219 | 1089 | 1691 |
| 369 | Neural circuitry | 8 | 218 | 1310 | 1465 |
| 369 | Cytoskeleton | 1 | 218 | 589 | 194 |
| 369 | cell membrane | 1 | 218 | 1172 | 536 |
| 372 | Geriatric Pharmacology | 5 | 212 | 265 | 199 |
| 373 | United Kingdom | 7 | 210 | 1349 | 1534 |
| 374 | Marine Biotechnology | 2 | 209 | 347 | 158 |
| 374 | Plant Ecology | 3 | 209 | 2058 | 1642 |
| 376 | Computer Science | 14 | 206 | 1009 | 1058 |
| 377 | Enzyme | 3 | 202 | 553 | 424 |
| 378 | Health promotion | 16 | 201 | 671 | 1204 |
| 379 | Nanobiotechnology | 9 | 198 | 160 | 413 |
| 379 | Astrocytes | 4 | 198 | 513 | 604 |
| 379 | hygiene | 7 | 198 | 304 | 325 |
| 382 | Adolescent Medicine | 1 | 195 | 1431 | 881 |
| 382 | Photochemistry | 7 | 195 | 1409 | 1382 |
| 384 | breastfeeding | 4 | 193 | 527 | 323 |
| 385 | Artificial Organs | 10 | 191 | 411 | 391 |
| 386 | Antioxidants | 8 | 190 | 498 | 923 |
| 386 | Developmental Disabilities | 8 | 190 | 685 | 937 |
| 386 | vitamin C | 8 | 190 | 175 | 378 |
| 386 | vitamin E | 8 | 190 | 175 | 378 |
| 390 | preimplantation genetic diagnosis | 17 | 185 | 124 | 294 |
| 390 | embryo transfer | 17 | 185 | 130 | 312 |
| 392 | preventive medicine | 15 | 184 | 633 | 1321 |
| 392 | Molecular cloning | 9 | 184 | 975 | 1238 |
| 392 | Genetic recombination | 9 | 184 | 956 | 1231 |
| 392 | ethanol | 7 | 184 | 324 | 338 |
| 392 | Recombinant DNA | 9 | 184 | 1035 | 1318 |
| 397 | Erectile dysfunction | 7 | 183 | 148 | 150 |
| 398 | Developing countries | 10 | 181 | 1478 | 1812 |
| 399 | Cognitive neuroscience | 5 | 179 | 876 | 1013 |
| 400 | counseling | 11 | 178 | 752 | 991 |
| 401 | Decision making | 7 | 175 | 1060 | 1102 |
| 401 | women | 8 | 175 | 478 | 306 |
| 403 | Psychiatric Nursing | 12 | 174 | 282 | 361 |
| 404 | Immunochemistry | 6 | 173 | 861 | 784 |
| 405 | Ethnology | 9 | 172 | 976 | 795 |
| 406 | Medical Anthropology | 4 | 169 | 1384 | 1484 |
| 407 | finance | 6 | 168 | 1911 | 1551 |
| 408 | Emergency Medical Services | 9 | 167 | 456 | 494 |
| 408 | Geriatric Nursing | 20 | 167 | 72 | 163 |
| 408 | Neurotransmitters | 12 | 167 | 265 | 380 |
| 408 | Child Development | 10 | 167 | 1319 | 1890 |
| 412 | Hemodynamics | 3 | 165 | 804 | 848 |
| 413 | Psychiatric Epidemiology | 9 | 164 | 265 | 552 |
| 413 | Cerebral cortex | 4 | 164 | 982 | 1054 |
| 415 | Malaria | 6 | 161 | 585 | 642 |
| 416 | Radiology | 21 | 160 | 695 | 1194 |
| 416 | Nuclear Medicine | 8 | 160 | 837 | 983 |
| 418 | Radiation Oncology | 6 | 159 | 298 | 317 |
| 418 | Androgens | 7 | 159 | 149 | 254 |
| 420 | Asthma | 7 | 157 | 509 | 512 |
| 421 | Molecular Imaging | 7 | 156 | 567 | 809 |
| 422 | Spine | 5 | 155 | 700 | 850 |
| 423 | Patient education | 10 | 154 | 336 | 671 |
| 424 | Endocrine glands | 1 | 153 | 646 | 524 |
| 424 | Gerontology | 40 | 153 | 504 | 1509 |
| 426 | energy conservation | 3 | 152 | 2313 | 2129 |
| 427 | Research Design | 6 | 150 | 1062 | 1217 |
| 428 | hospice care | 13 | 149 | 201 | 351 |
| 428 | Computer-Aided Design | 3 | 149 | 1480 | 910 |
| 430 | International Finance | 5 | 148 | 1411 | 1291 |
| 430 | Capital market | 5 | 148 | 272 | 324 |
| 430 | Egypt | 5 | 148 | 323 | 389 |
| 433 | Randomized Controlled Trials | 4 | 147 | 1353 | 837 |
| 433 | prostaglandins | 5 | 147 | 446 | 420 |
| 435 | venom | 6 | 146 | 666 | 672 |
| 435 | Toxins | 6 | 146 | 747 | 746 |
| 437 | Japan | 10 | 145 | 1367 | 1416 |
| 438 | Simulation | 4 | 141 | 151 | 145 |
| 438 | urban health | 4 | 141 | 257 | 283 |
| 438 | theoretical models | 4 | 141 | 151 | 145 |
| 441 | Cerebellum | 2 | 139 | 468 | 280 |
| 441 | Digestive system diseases | 10 | 139 | 650 | 1015 |
| 441 | Cerebellar ataxia | 2 | 139 | 468 | 280 |
| 444 | Lipids | 10 | 138 | 821 | 1625 |
| 444 | Nitric oxide | 4 | 138 | 323 | 287 |
| 446 | Medical Physics | 12 | 136 | 1091 | 1587 |
| 446 | Sports | 10 | 136 | 1363 | 1570 |
| 448 | Sustainable Development | 2 | 135 | 3143 | 2125 |
| 448 | behavioral medicine | 4 | 135 | 1443 | 1640 |
| 448 | Reproductive health | 8 | 135 | 512 | 724 |
| 451 | Chromosomes | 3 | 134 | 1249 | 1150 |
| 452 | Neuropsychiatry | 7 | 133 | 716 | 971 |
| 452 | health services accessibility | 5 | 133 | 869 | 830 |
| 452 | Bacteriology | 5 | 133 | 1954 | 2500 |
| 452 | global environmental change | 1 | 133 | 1721 | 1091 |
| 456 | Evolutionary Genetics | 3 | 132 | 850 | 638 |
| 456 | Molecular Epidemiology | 3 | 132 | 850 | 638 |
| 456 | Physical Chemistry | 5 | 132 | 2187 | 2217 |
| 456 | RNA | 3 | 132 | 631 | 668 |
| 460 | Pregnancy | 4 | 131 | 892 | 791 |
| 461 | Mass Spectrometry | 7 | 130 | 956 | 1174 |
| 461 | Mental Health Services | 10 | 130 | 789 | 1170 |
| 463 | Greenhouse gases | 1 | 128 | 735 | 400 |
| 464 | Mathematics | 12 | 126 | 4140 | 4237 |
| 464 | Histocompatibility Testing | 7 | 126 | 433 | 486 |
| 464 | coal | 2 | 126 | 2178 | 1846 |
| 467 | Cell division | 6 | 120 | 384 | 637 |
| 468 | Molecular Genetics | 6 | 119 | 1846 | 2559 |
| 468 | Immunotoxicology | 5 | 119 | 207 | 184 |
| 468 | pain management | 7 | 119 | 469 | 681 |
| 468 | Photobiology | 6 | 119 | 1119 | 1350 |
| 472 | Synaptic Transmission | 3 | 118 | 626 | 583 |
| 473 | Analytical Toxicology | 5 | 116 | 185 | 220 |
| 473 | Environmental Management | 3 | 116 | 3457 | 3609 |
| 473 | Cross-Cultural Studies | 10 | 116 | 275 | 563 |
| 473 | cross-cultural comparison | 10 | 116 | 213 | 412 |
| 477 | Emerging infectious diseases | 4 | 115 | 284 | 371 |
| 477 | Enzyme inhibitors | 13 | 115 | 96 | 298 |
| 479 | Occupational Therapy | 17 | 113 | 375 | 605 |
| 479 | Drug targeting | 5 | 113 | 188 | 360 |
| 479 | Socioeconomic Factors | 2 | 113 | 1207 | 808 |
| 482 | Bioethics | 3 | 112 | 1089 | 689 |
| 482 | rare diseases | 4 | 112 | 726 | 829 |
| 484 | Rheumatology | 12 | 111 | 779 | 1578 |
| 484 | Anxiety Disorders | 2 | 111 | 809 | 852 |
| 484 | Anxiety | 2 | 111 | 811 | 851 |
| 487 | Analytical Biochemistry | 12 | 110 | 928 | 1907 |
| 487 | Cytokine | 4 | 110 | 400 | 639 |
| 489 | Mechanical Engineering | 5 | 109 | 2398 | 1836 |
| 490 | particles | 5 | 108 | 822 | 896 |
| 491 | adolescence | 3 | 107 | 1082 | 977 |
| 491 | visualization | 28 | 107 | 425 | 775 |
| 493 | Molecular Microbiology | 5 | 106 | 818 | 1413 |
| 493 | Mental Health | 11 | 106 | 961 | 1631 |
| 493 | Bacterial diseases | 5 | 106 | 141 | 309 |
| 496 | Manufacturing Processes | 3 | 105 | 2684 | 2228 |
| 496 | risk factors | 7 | 105 | 567 | 882 |
| 496 | Mitochondria | 4 | 105 | 306 | 378 |
| 496 | biopolymers | 3 | 105 | 1418 | 1317 |
| 500 | Physical organic chemistry | 9 | 104 | 933 | 1353 |
| 500 | gene transfer | 3 | 104 | 330 | 324 |
| 500 | genetic transformation | 3 | 104 | 330 | 324 |
| 503 | food contamination | 6 | 103 | 802 | 932 |
| 503 | psychotherapy | 5 | 103 | 1260 | 1484 |
| 505 | Medical Ethics | 2 | 102 | 1805 | 931 |
| 505 | Youth | 2 | 102 | 940 | 774 |
| 505 | Fuzzy systems | 3 | 102 | 2001 | 1187 |
| 508 | Exercise | 9 | 101 | 844 | 1214 |
| 509 | Oral Medicine | 10 | 100 | 331 | 478 |
| 510 | Nephrology | 6 | 97 | 498 | 979 |
| 510 | Telemedicine | 9 | 97 | 164 | 472 |
| 510 | Africa | 7 | 97 | 1231 | 1192 |
| 510 | solar cells | 3 | 97 | 1079 | 1275 |
| 514 | Autism | 6 | 93 | 576 | 1028 |
| 515 | Health Services Administration | 10 | 92 | 608 | 1301 |
| 515 | epilepsy | 7 | 92 | 780 | 1179 |
| 515 | Biodegradation | 3 | 92 | 855 | 981 |
| 515 | Biomechanics | 9 | 92 | 941 | 1709 |
| 519 | Global Health | 14 | 91 | 425 | 1002 |
| 519 | Ultrasonic Imaging | 5 | 91 | 426 | 578 |
| 519 | Ultrasound | 5 | 91 | 465 | 650 |
| 522 | Aerosols | 3 | 90 | 701 | 639 |
| 522 | Menopause | 4 | 90 | 292 | 362 |
| 524 | Peroxisomes | 3 | 89 | 66 | 104 |
| 525 | air quality management | 6 | 88 | 327 | 704 |
| 525 | Cognitive Science | 6 | 88 | 1190 | 1877 |
| 527 | Social Psychology | 4 | 86 | 2170 | 2476 |
| 527 | Music | 6 | 86 | 718 | 684 |
| 527 | Depression | 1 | 86 | 844 | 726 |
| 527 | voice | 6 | 86 | 369 | 504 |
| 527 | drug resistance | 8 | 86 | 376 | 1008 |
| 527 | Physical fitness | 4 | 86 | 1101 | 1268 |
| 533 | Neonatology | 5 | 85 | 560 | 786 |
| 534 | mass transfer | 4 | 84 | 1677 | 1933 |
| 534 | food handling | 4 | 84 | 880 | 1327 |
| 534 | sports injuries | 10 | 84 | 239 | 525 |
| 537 | Climatology | 3 | 83 | 2118 | 2248 |
| 537 | Clinical Psychology | 5 | 83 | 1428 | 2153 |
| 537 | bioclimatology | 3 | 83 | 1113 | 1091 |
| 537 | Climate | 3 | 83 | 716 | 849 |
| 537 | weather | 3 | 83 | 673 | 749 |
| 542 | Biomolecules | 2 | 82 | 695 | 791 |
| 543 | Hemophilia | 9 | 81 | 332 | 554 |
| 544 | Water Microbiology | 3 | 79 | 542 | 638 |
| 544 | men | 7 | 79 | 123 | 287 |
| 546 | Growth factors | 3 | 78 | 312 | 664 |
| 546 | Fouling | 2 | 78 | 365 | 400 |
| 548 | Metallurgy | 5 | 77 | 2456 | 2605 |
| 548 | Metals | 5 | 77 | 2191 | 2539 |
| 550 | Light | 1 | 76 | 1979 | 1659 |
| 550 | Hazardous waste | 2 | 76 | 1347 | 1644 |
| 552 | Exercise therapy | 1 | 75 | 976 | 368 |
| 552 | fuel cells | 2 | 75 | 1693 | 1718 |
| 554 | indoor air pollution | 4 | 74 | 361 | 578 |
| 554 | Ventilation | 4 | 74 | 481 | 664 |
| 554 | Sick building syndrome | 4 | 74 | 361 | 578 |
| 557 | Risk assessment | 4 | 73 | 578 | 648 |
| 557 | Electrochemical Analysis | 13 | 73 | 789 | 1762 |
| 557 | Molecular Spectroscopy | 5 | 73 | 1691 | 2126 |
| 557 | Health Risk Assessment | 4 | 73 | 417 | 496 |
| 557 | Consciousness | 3 | 73 | 548 | 574 |
| 562 | Mutagenesis | 5 | 72 | 330 | 529 |
| 563 | School Psychology | 2 | 70 | 655 | 577 |
| 563 | nuclear magnetic resonance | 3 | 70 | 1378 | 1274 |
| 563 | Magnetic Resonance Spectroscopy | 3 | 70 | 1538 | 1385 |
| 563 | disease vectors | 3 | 70 | 1205 | 1389 |
| 567 | radioactive waste | 1 | 69 | 1615 | 1629 |
| 567 | industrial waste | 1 | 69 | 1666 | 1630 |
| 567 | Hearing | 3 | 69 | 831 | 840 |
| 567 | Electromagnetic fields | 3 | 69 | 345 | 127 |
| 571 | Quality Control | 3 | 68 | 2244 | 2366 |
| 571 | Veterinary Immunology | 3 | 68 | 444 | 503 |
| 573 | elder abuse | 1 | 67 | 679 | 443 |
| 573 | Raman spectroscopy | 2 | 67 | 1203 | 1066 |
| 575 | Suicide | 5 | 66 | 468 | 733 |
| 576 | Health insurance | 7 | 65 | 300 | 685 |
| 576 | Child psychology | 4 | 65 | 1578 | 2265 |
| 576 | Jurisprudence | 4 | 65 | 971 | 1045 |
| 579 | Business | 2 | 64 | 3073 | 2671 |
| 579 | Drug delivery devices | 2 | 64 | 274 | 406 |
| 579 | Metallography | 4 | 64 | 783 | 1092 |
| 582 | Educational Psychology | 1 | 63 | 2566 | 1699 |
| 583 | Zoology | 5 | 62 | 2581 | 2936 |
| 583 | Nanoelectronics | 5 | 62 | 784 | 850 |
| 583 | Radiation | 6 | 62 | 2006 | 2680 |
| 583 | Teaching | 2 | 62 | 2598 | 1841 |
| 583 | Semiconductor industry | 5 | 62 | 564 | 683 |
| 588 | Food Safety | 3 | 61 | 254 | 285 |
| 588 | Mineralogy | 1 | 61 | 2460 | 1666 |
| 588 | Laser therapy | 4 | 61 | 415 | 427 |
| 588 | Allergy | 4 | 61 | 1431 | 2313 |
| 592 | Otolaryngology | 8 | 60 | 432 | 879 |
| 593 | Integrative Medicine | 6 | 59 | 198 | 256 |
| 593 | violence | 1 | 59 | 1878 | 1338 |
| 593 | Aggression | 1 | 59 | 960 | 764 |
| 596 | Statistics | 10 | 58 | 1859 | 2901 |
| 597 | Neuroimaging | 3 | 57 | 344 | 371 |
| 597 | health services | 2 | 57 | 1760 | 1588 |
| 599 | Functional Genomics | 1 | 56 | 714 | 709 |
| 599 | Travel | 5 | 56 | 807 | 1155 |
| 599 | Autoantibodies | 4 | 56 | 635 | 1180 |
| 599 | Reproductive toxicology | 2 | 56 | 794 | 832 |
| 599 | Autoimmunity | 4 | 56 | 825 | 1522 |
| 599 | Autoimmune diseases | 4 | 56 | 682 | 1263 |
| 605 | Solar Energy | 2 | 55 | 2418 | 2698 |
| 605 | Semiconductors | 3 | 55 | 2471 | 2422 |
| 605 | solar power | 2 | 55 | 1171 | 1488 |
| 608 | drug control | 4 | 54 | 374 | 638 |
| 609 | Mathematical Physics | 3 | 53 | 3547 | 2940 |
| 609 | Industrial Safety | 5 | 53 | 1070 | 1619 |
| 609 | Microcirculation | 2 | 53 | 760 | 821 |
| 609 | embryonic development | 3 | 53 | 497 | 747 |
| 609 | ovary | 5 | 53 | 129 | 364 |
| 609 | Social behavior | 2 | 53 | 1693 | 1811 |
| 609 | Statistical physics | 3 | 53 | 4101 | 4101 |
| 616 | Optics | 8 | 52 | 3920 | 4793 |
| 616 | Human-Computer Interaction | 4 | 52 | 1548 | 2062 |
| 616 | Gene expression regulation | 2 | 52 | 1618 | 1801 |
| 619 | Biofeedback | 2 | 51 | 162 | 270 |
| 619 | Organometallic chemistry | 5 | 51 | 1816 | 2325 |
| 619 | Genetic testing | 4 | 51 | 312 | 394 |
| 619 | behavior therapy | 2 | 51 | 1222 | 1320 |
| 623 | Marriage | 2 | 50 | 764 | 747 |
| 623 | Speech Disorders | 2 | 50 | 1464 | 1487 |
| 623 | paraphilias | 2 | 50 | 288 | 340 |
| 623 | Marriage counseling | 2 | 50 | 476 | 536 |
| 623 | Speech | 2 | 50 | 1277 | 1367 |
| 623 | Immune system | 2 | 50 | 1652 | 2125 |
| 629 | Information Technology | 5 | 49 | 2341 | 3006 |
| 629 | Nuclear Chemistry | 2 | 49 | 1649 | 1215 |
| 629 | Radiochemistry | 2 | 49 | 1562 | 1092 |
| 629 | Infection control | 5 | 49 | 634 | 1304 |
| 629 | Vaccination | 1 | 49 | 630 | 542 |
| 629 | vitamins | 1 | 49 | 389 | 372 |
| 635 | Structural design | 1 | 48 | 1593 | 1163 |
| 635 | Nutrition physiology | 5 | 48 | 666 | 1400 |
| 635 | Smart Materials | 1 | 48 | 1799 | 1321 |
| 635 | Animal ecology | 3 | 48 | 1410 | 1726 |
| 635 | Social Change | 1 | 48 | 1907 | 1866 |
| 635 | Wildlife management | 3 | 48 | 732 | 790 |
| 635 | DNA methylation | 1 | 48 | 712 | 757 |
| 635 | Plastics | 4 | 48 | 1780 | 2216 |
| 635 | Osteoporosis | 6 | 48 | 224 | 621 |
| 635 | Bone diseases | 6 | 48 | 362 | 1021 |
| 635 | Cellulose | 2 | 48 | 902 | 1121 |
| 635 | disaster relief | 3 | 48 | 241 | 400 |
| 647 | Multiple sclerosis | 2 | 47 | 989 | 772 |
| 647 | Biodiversity | 5 | 47 | 2211 | 3504 |
| 649 | Language Disorders | 1 | 46 | 1632 | 1206 |
| 649 | Artificial Intelligence | 6 | 46 | 3244 | 4790 |
| 649 | Pharmacogenomics | 2 | 46 | 531 | 745 |
| 649 | Contraception | 3 | 46 | 783 | 1162 |
| 649 | Technological Innovations | 3 | 46 | 1206 | 1605 |
| 649 | reasoning | 1 | 46 | 850 | 543 |
| 649 | Hospitals | 4 | 46 | 780 | 1209 |
| 656 | Nanochemistry | 4 | 45 | 1218 | 1799 |
| 656 | Crystallography | 2 | 45 | 2388 | 1652 |
| 656 | optical instruments | 2 | 45 | 610 | 609 |
| 656 | X-ray crystallography | 1 | 45 | 1120 | 785 |
| 656 | Genetic markers | 2 | 45 | 435 | 484 |
| 656 | optical phenomena | 2 | 45 | 172 | 192 |
| 656 | drug toxicity | 3 | 45 | 517 | 950 |
| 663 | Accreditation | 1 | 44 | 207 | 76 |
| 663 | teratogenic agents | 4 | 44 | 178 | 306 |
| 663 | Brain damage | 4 | 44 | 431 | 855 |
| 666 | Altitude Sickness | 3 | 43 | 154 | 252 |
| 666 | Eating Disorders | 4 | 43 | 917 | 1499 |
| 666 | Feeding and Eating Disorders | 4 | 43 | 875 | 1445 |
| 666 | Altitude | 3 | 43 | 154 | 252 |
| 666 | Antigens | 7 | 43 | 731 | 1625 |
| 671 | Solar power plants | 1 | 42 | 462 | 471 |
| 671 | biofuels | 1 | 42 | 636 | 899 |
| 671 | Photovoltaic Cells | 1 | 42 | 464 | 471 |
| 671 | Synapses | 3 | 42 | 337 | 591 |
| 675 | Hippocampus | 1 | 41 | 648 | 751 |
| 675 | drug development | 6 | 41 | 890 | 2636 |
| 675 | Cell metabolism | 1 | 41 | 1526 | 1780 |
| 678 | Genetic disorders | 1 | 40 | 1100 | 1038 |
| 678 | Spintronics | 2 | 40 | 69 | 46 |
| 678 | Neuroplasticity | 4 | 40 | 325 | 801 |
| 678 | neuronal plasticity | 4 | 40 | 257 | 721 |
| 678 | X-rays | 9 | 40 | 367 | 996 |
| 678 | scientific societies | 1 | 40 | 1818 | 1534 |
| 684 | Energy Policy | 1 | 39 | 4627 | 4691 |
| 684 | Interferons | 2 | 39 | 467 | 614 |
| 684 | Organometallic compounds | 2 | 39 | 1728 | 1835 |
| 684 | management | 5 | 39 | 3184 | 4779 |
| 684 | animal diseases | 1 | 39 | 1044 | 911 |
| 684 | Entomology | 4 | 39 | 2580 | 3058 |
| 690 | Immunohematology | 6 | 38 | 76 | 77 |
| 690 | ecological risk assessment | 3 | 38 | 290 | 537 |
| 690 | Developmental Neurobiology | 2 | 38 | 891 | 1008 |
| 690 | Blood group antigens | 6 | 38 | 43 | 49 |
| 690 | Nutrigenomics | 1 | 38 | 288 | 338 |
| 690 | sex differences | 1 | 38 | 353 | 372 |
| 690 | Psychiatric hospitals | 3 | 38 | 412 | 564 |
| 697 | Granular materials | 3 | 37 | 651 | 1134 |
| 697 | internet | 2 | 37 | 1801 | 1824 |
| 697 | immunoassay | 2 | 37 | 317 | 251 |
| 700 | Immunohistochemistry | 3 | 35 | 244 | 323 |
| 700 | Health risk communication | 1 | 35 | 175 | 157 |
| 700 | Transplantation | 2 | 35 | 1862 | 2346 |
| 703 | Parkinson's disease | 2 | 34 | 364 | 593 |
| 703 | ozone | 3 | 34 | 125 | 217 |
| 705 | Microbial Genetics | 1 | 33 | 780 | 729 |
| 705 | Microfabrication | 2 | 33 | 598 | 710 |
| 705 | Bioinorganic chemistry | 3 | 33 | 1669 | 2405 |
| 705 | Freeze-Drying | 1 | 33 | 1135 | 855 |
| 705 | Hypothermia | 1 | 33 | 1135 | 855 |
| 705 | phytopathogenic bacteria | 1 | 33 | 532 | 628 |
| 705 | Freeze Drying | 1 | 33 | 1135 | 855 |
| 705 | Probiotics | 4 | 33 | 130 | 467 |
| 705 | Plant diseases | 1 | 33 | 3322 | 2916 |
| 705 | biological agents | 11 | 33 | 245 | 483 |
| 705 | pharmaceutical industry | 4 | 33 | 579 | 1060 |
| 705 | Human biology | 1 | 33 | 1385 | 1140 |
| 717 | Solid State Chemistry | 2 | 32 | 3246 | 3465 |
| 717 | Glass | 3 | 32 | 1384 | 1992 |
| 717 | Growth | 2 | 32 | 1763 | 2564 |
| 720 | Social Sciences | 5 | 31 | 3631 | 4811 |
| 720 | Ergonomics | 3 | 31 | 1295 | 1688 |
| 720 | Dietetics | 5 | 31 | 769 | 1343 |
| 720 | Stochastic Processes | 4 | 31 | 893 | 1344 |
| 720 | Immunogenetics | 5 | 31 | 699 | 1518 |
| 720 | Molecular evolution | 3 | 31 | 2232 | 3487 |
| 720 | Drug discovery | 1 | 31 | 703 | 715 |
| 720 | Textile industry | 2 | 31 | 876 | 692 |
| 728 | Cardiac electrophysiology | 2 | 30 | 387 | 631 |
| 728 | Globalization | 3 | 30 | 622 | 1124 |
| 728 | arrhythmia | 2 | 30 | 387 | 631 |
| 728 | Microscopy | 3 | 30 | 2148 | 2606 |
| 728 | international cooperation | 3 | 30 | 689 | 1286 |
| 728 | Chronic diseases | 1 | 30 | 1515 | 1719 |
| 734 | Genetic Counseling | 1 | 29 | 723 | 600 |
| 734 | Ceramics | 3 | 29 | 1848 | 2371 |
| 734 | Fluorescence spectroscopy | 1 | 29 | 630 | 596 |
| 734 | synthesis | 2 | 29 | 1545 | 1472 |
| 738 | Geophysics | 2 | 28 | 4791 | 5574 |
| 738 | Atmospheric Chemistry | 1 | 28 | 1631 | 1927 |
| 738 | Atmospheric Physics | 2 | 28 | 2224 | 2851 |
| 738 | Maternal health services | 2 | 28 | 695 | 1016 |
| 738 | Child welfare | 2 | 28 | 1714 | 2059 |
| 738 | Ceramic materials | 4 | 28 | 1334 | 2286 |
| 738 | Zeolites | 1 | 28 | 1657 | 1883 |
| 738 | pottery | 2 | 28 | 1583 | 2021 |
| 738 | Membranes | 2 | 28 | 2492 | 3478 |
| 747 | Economics | 3 | 27 | 4875 | 5269 |
| 747 | Molecular recognition | 2 | 27 | 337 | 570 |
| 747 | Hematopoietic stem cell transplantation | 3 | 27 | 577 | 1254 |
| 747 | Strategic planning | 1 | 27 | 1500 | 1401 |
| 747 | calcification | 3 | 27 | 698 | 1345 |
| 747 | cough | 1 | 27 | 39 | 101 |
| 753 | air quality | 2 | 26 | 389 | 624 |
| 753 | Stress | 2 | 26 | 414 | 724 |
| 753 | Plant cells | 1 | 26 | 1930 | 2599 |
| 753 | Birth control | 1 | 26 | 1049 | 1189 |
| 757 | Learning | 3 | 25 | 1633 | 2623 |
| 757 | Social work | 3 | 25 | 1820 | 2400 |
| 759 | Audiology | 4 | 24 | 866 | 1560 |
| 759 | Radiation Protection | 2 | 24 | 1149 | 1002 |
| 759 | Health Physics | 2 | 24 | 366 | 376 |
| 759 | radiation monitoring | 2 | 24 | 1046 | 947 |
| 759 | Anti-inflammatory agents | 2 | 24 | 368 | 628 |
| 759 | Educational measurement | 1 | 24 | 369 | 338 |
| 759 | DNA polymerases | 1 | 24 | 1011 | 1589 |
| 766 | Fluid Mechanics | 1 | 23 | 3042 | 2845 |
| 766 | Production Engineering | 2 | 23 | 2715 | 3156 |
| 766 | Preoperative Care | 2 | 23 | 138 | 214 |
| 766 | perioperative care | 2 | 23 | 136 | 214 |
| 766 | Crisis Intervention | 3 | 23 | 181 | 457 |
| 766 | Soft Condensed Matter | 1 | 23 | 1927 | 2062 |
| 766 | Respiratory Infections | 1 | 23 | 862 | 925 |
| 766 | Radioisotopes | 4 | 23 | 1353 | 2091 |
| 766 | supercritical fluids | 1 | 23 | 764 | 975 |
| 766 | Vision | 1 | 23 | 1289 | 1496 |
| 766 | Influenza | 1 | 23 | 709 | 806 |
| 777 | Energy Storage | 1 | 22 | 2210 | 2267 |
| 777 | Plant Biotechnology | 2 | 22 | 1186 | 1707 |
| 777 | Biological Systems | 3 | 22 | 893 | 1656 |
| 777 | Antiviral agents | 1 | 22 | 757 | 908 |
| 777 | Energy Harvesting | 1 | 22 | 808 | 1158 |
| 777 | acupuncture | 4 | 22 | 218 | 271 |
| 777 | sleep-wake cycle | 6 | 22 | 56 | 230 |
| 777 | Cerebrospinal fluid | 2 | 22 | 183 | 400 |
| 777 | biological monitoring | 1 | 22 | 1160 | 1433 |
| 786 | Geology | 2 | 21 | 4092 | 4772 |
| 786 | Magnetic Resonance Imaging | 1 | 21 | 1239 | 1289 |
| 786 | Biochemical Genetics | 1 | 21 | 1084 | 782 |
| 786 | Entropy | 2 | 21 | 1617 | 1949 |
| 786 | nursing ethics | 1 | 21 | 563 | 679 |
| 786 | Earth Sciences | 4 | 21 | 3442 | 5270 |
| 786 | Atomic spectroscopy | 1 | 21 | 2079 | 2047 |
| 786 | planning | 4 | 21 | 692 | 1527 |
| 794 | Psycholinguistics | 4 | 20 | 939 | 1858 |
| 794 | monoclonal antibodies | 4 | 20 | 170 | 496 |
| 794 | Heart Failure | 1 | 20 | 897 | 1153 |
| 794 | Microwaves | 1 | 20 | 1965 | 1496 |
| 798 | Neurolinguistics | 3 | 19 | 509 | 1061 |
| 798 | Social welfare | 2 | 19 | 865 | 1305 |
| 798 | Magnetic Materials | 1 | 19 | 2396 | 2511 |
| 798 | wind erosion | 1 | 19 | 264 | 397 |
| 802 | Medicinal Chemistry | 1 | 18 | 3 | 25 |
| 802 | emergency management | 1 | 18 | 1923 | 2146 |
| 802 | Mycology | 2 | 18 | 2398 | 3271 |
| 802 | aromatic plants | 1 | 18 | 505 | 431 |
| 802 | Biomass | 2 | 18 | 964 | 1976 |
| 802 | Fungi | 2 | 18 | 1494 | 2273 |
| 802 | Detectors | 2 | 18 | 1443 | 1823 |
| 802 | computer networks | 1 | 18 | 4159 | 4006 |
| 802 | Intellectual disability | 2 | 18 | 1305 | 1855 |
| 811 | Probability | 2 | 17 | 895 | 1473 |
| 811 | Risk Management | 2 | 17 | 1132 | 1904 |
| 811 | Financial management | 2 | 17 | 774 | 1469 |
| 811 | Risk | 3 | 17 | 663 | 1500 |
| 811 | Bacteria | 1 | 17 | 829 | 1213 |
| 811 | Bacterial infections | 2 | 17 | 1444 | 2603 |
| 811 | Blood vessels | 1 | 17 | 890 | 1087 |
| 811 | traffic safety | 2 | 17 | 476 | 807 |
| 811 | gastrointestinal tract | 1 | 17 | 708 | 1112 |
| 820 | Industrial Engineering | 3 | 16 | 2290 | 3760 |
| 820 | Linguistics | 3 | 16 | 1825 | 2183 |
| 820 | Disease management | 1 | 16 | 333 | 362 |
| 820 | Neuroanatomy | 2 | 16 | 368 | 770 |
| 820 | Neuromuscular diseases | 2 | 16 | 1077 | 1756 |
| 820 | Pathogens | 2 | 16 | 138 | 400 |
| 826 | Optoelectronics | 1 | 15 | 1192 | 1008 |
| 826 | Pediatric Nursing | 2 | 15 | 816 | 1225 |
| 826 | Human Rights | 1 | 15 | 1253 | 1226 |
| 826 | Computational Intelligence | 2 | 15 | 1454 | 2003 |
| 826 | Fiber Optics | 1 | 15 | 1026 | 951 |
| 826 | Post-traumatic stress disorder | 1 | 15 | 1535 | 1922 |
| 826 | amino acids | 1 | 15 | 1329 | 1749 |
| 826 | Aquaculture | 1 | 15 | 2585 | 2885 |
| 826 | Zoonoses | 1 | 15 | 734 | 1062 |
| 835 | Horticulture | 1 | 14 | 1571 | 1679 |
| 835 | Signal Processing | 2 | 14 | 2779 | 3752 |
| 835 | protein | 5 | 14 | 1245 | 2824 |
| 835 | Safety management | 3 | 14 | 719 | 1611 |
| 835 | Insects | 2 | 14 | 2149 | 2856 |
| 835 | drug abuse | 2 | 14 | 1036 | 1716 |
| 835 | Muscle contraction | 1 | 14 | 733 | 553 |
| 842 | Plasma chemistry | 1 | 13 | 830 | 1064 |
| 842 | Electrocardiography | 11 | 13 | 182 | 910 |
| 842 | Rheology | 1 | 13 | 1199 | 1400 |
| 842 | Food texture | 1 | 13 | 398 | 569 |
| 842 | Qualitative Research | 1 | 13 | 1019 | 1179 |
| 842 | Cell adhesion | 2 | 13 | 215 | 655 |
| 842 | Plasma polymerization | 1 | 13 | 579 | 738 |
| 842 | peptides | 2 | 13 | 1420 | 2199 |
| 842 | innovation | 1 | 13 | 1198 | 1621 |
| 842 | Cell surface receptors | 1 | 13 | 351 | 488 |
| 852 | health behavior | 3 | 12 | 1236 | 2766 |
| 852 | Apoptosis | 1 | 12 | 661 | 1094 |
| 852 | neurotoxins | 1 | 12 | 661 | 1094 |
| 852 | Neurotoxic agents | 1 | 12 | 661 | 1094 |
| 852 | Chemical processes | 1 | 12 | 1299 | 1574 |
| 852 | Arthropods | 1 | 12 | 601 | 765 |
| 852 | Antibodies | 3 | 12 | 886 | 1881 |
| 852 | Chemical industry | 2 | 12 | 1982 | 2798 |
| 852 | mental processes | 1 | 12 | 749 | 860 |
| 852 | food industry | 3 | 12 | 779 | 1787 |
| 852 | lasers | 3 | 12 | 2366 | 3450 |
| 852 | Liquid chromatography | 4 | 12 | 521 | 1226 |
| 852 | Nerve regeneration | 1 | 12 | 661 | 1094 |
| 865 | Socialization | 1 | 11 | 976 | 1396 |
| 865 | Electron Microscopy | 1 | 11 | 890 | 1105 |
| 865 | Mechanics | 6 | 11 | 1079 | 2546 |
| 865 | role | 1 | 11 | 800 | 1232 |
| 865 | transport vesicles | 1 | 11 | 573 | 1059 |
| 865 | Criminal investigation | 1 | 11 | 467 | 556 |
| 871 | Distance Education | 2 | 10 | 690 | 1303 |
| 871 | Adult Education | 2 | 10 | 868 | 1254 |
| 871 | Quantum electronics | 2 | 10 | 1594 | 2079 |
| 871 | Neurovirology | 2 | 10 | 400 | 905 |
| 871 | Animal Nutrition | 1 | 10 | 1123 | 1430 |
| 871 | Cell migration | 1 | 10 | 217 | 494 |
| 871 | Optoelectronic devices | 2 | 10 | 1318 | 1737 |
| 871 | cell movement | 1 | 10 | 531 | 898 |
| 871 | human development | 1 | 10 | 1456 | 1990 |
| 880 | Forensic Psychiatry | 3 | 9 | 685 | 1413 |
| 880 | Virtual reality | 1 | 9 | 824 | 1083 |
| 880 | Fermentation | 1 | 9 | 602 | 790 |
| 880 | Thin Films | 3 | 9 | 720 | 1496 |
| 880 | Plant genetic engineering | 2 | 9 | 1351 | 2352 |
| 880 | Happiness | 1 | 9 | 944 | 1420 |
| 886 | Lymphoma | 2 | 8 | 1215 | 1218 |
| 886 | Multiple Myeloma | 2 | 8 | 1207 | 1193 |
| 886 | Metabolic syndrome | 1 | 8 | 651 | 1084 |
| 886 | animals | 2 | 8 | 1936 | 3110 |
| 886 | cardiac catheterization | 1 | 8 | 1611 | 1908 |
| 886 | color | 1 | 8 | 601 | 819 |
| 886 | eugenics | 1 | 8 | 1457 | 2069 |
| 886 | Disease | 1 | 8 | 845 | 1538 |
| 894 | General Surgery | 2 | 7 | 1199 | 1990 |
| 894 | cosmic rays | 1 | 7 | 1006 | 1307 |
| 894 | Lipid metabolism | 1 | 7 | 946 | 1524 |
| 894 | Nutritional support | 1 | 7 | 411 | 696 |
| 894 | Lipid | 1 | 7 | 951 | 1528 |
| 894 | Human Resources | 1 | 7 | 864 | 1406 |
| 894 | Computer Literacy | 1 | 7 | 525 | 825 |
| 894 | tomography | 2 | 7 | 652 | 1103 |
| 902 | Pediatric Dermatology | 1 | 6 | 1008 | 1366 |
| 902 | ethnicity | 1 | 6 | 1519 | 1914 |
| 902 | dual diagnosis | 1 | 6 | 239 | 375 |
| 902 | health and race | 1 | 6 | 560 | 1028 |
| 902 | Holistic Health | 1 | 6 | 1095 | 1609 |
| 902 | psychophysics | 1 | 6 | 665 | 875 |
| 902 | ethnic groups | 1 | 6 | 702 | 1193 |
| 902 | textile fibers | 1 | 6 | 1069 | 1342 |
| 902 | child abuse | 1 | 6 | 1708 | 2533 |
| 902 | Birds | 1 | 6 | 2154 | 2490 |
| 902 | California | 1 | 6 | 911 | 1213 |
| 902 | Organelle biogenesis | 1 | 6 | 494 | 769 |
| 902 | phototherapy | 1 | 6 | 586 | 715 |
| 915 | Early Childhood Education | 1 | 5 | 1092 | 1453 |
| 915 | Animal Biotechnology | 1 | 5 | 407 | 711 |
| 915 | Emergency Nursing | 1 | 5 | 419 | 709 |
| 915 | Forensic Psychology | 2 | 5 | 606 | 1173 |
| 915 | Dental Public Health | 1 | 5 | 402 | 624 |
| 915 | Adolescent Psychology | 1 | 5 | 1737 | 2505 |
| 915 | Calorimetry | 1 | 5 | 2207 | 2968 |
| 915 | Luminescence | 1 | 5 | 2361 | 3145 |
| 915 | Thermal analysis | 1 | 5 | 2207 | 2968 |
| 924 | Philosophy | 1 | 4 | 2833 | 2383 |
| 924 | Data Mining | 1 | 4 | 3570 | 5186 |
| 924 | Economic History | 1 | 4 | 6306 | 6985 |
| 924 | Solid State Physics | 3 | 4 | 4238 | 6838 |
| 924 | Plant Taxonomy | 1 | 4 | 825 | 1149 |
| 924 | Amyotrophic Lateral Sclerosis | 1 | 4 | 588 | 966 |
| 924 | Frontotemporal lobar degeneration | 1 | 4 | 461 | 776 |
| 924 | Transportation | 2 | 4 | 2288 | 4019 |
| 924 | economic policy | 1 | 4 | 4522 | 5192 |
| 924 | Ferroelectricity | 1 | 4 | 1654 | 1959 |
| 924 | Multimedia Systems | 1 | 4 | 3133 | 3922 |
| 924 | Animal welfare | 1 | 4 | 757 | 1259 |
| 924 | Roads | 1 | 4 | 1407 | 1874 |
| 924 | Futures | 1 | 4 | 660 | 1008 |
| 924 | Heterocyclic compounds | 1 | 4 | 1873 | 2481 |
| 924 | Scanning electron microscopy | 1 | 4 | 456 | 808 |
| 924 | language | 1 | 4 | 1520 | 1980 |
| 941 | Systems Engineering | 1 | 3 | 3990 | 5101 |
| 941 | Organizational learning | 1 | 3 | 1268 | 1924 |
| 941 | Knowledge management | 1 | 3 | 1504 | 2171 |
| 941 | Environmental Geochemistry | 1 | 3 | 1235 | 2164 |
| 941 | glycoproteins | 1 | 3 | 1035 | 1720 |
| 941 | Glycoconjugates | 1 | 3 | 1035 | 1720 |
| 941 | Oligosaccharide | 1 | 3 | 722 | 1251 |
| 941 | Telecommunication | 1 | 3 | 4175 | 5132 |
| 941 | Carbohydrates | 1 | 3 | 984 | 1587 |
| 941 | government | 1 | 3 | 1476 | 1640 |
| 941 | technical education | 3 | 3 | 564 | 1624 |
| 941 | Longevity | 1 | 3 | 461 | 981 |
| 941 | educational planning | 1 | 3 | 854 | 1387 |
| 941 | rejuvenation | 1 | 3 | 345 | 781 |
| 941 | Minerals | 1 | 3 | 1633 | 2632 |
| 941 | glycolipids | 1 | 3 | 1035 | 1720 |
| 957 | Experimental Psychology | 1 | 2 | 1030 | 1455 |
| 957 | Inorganic Chemistry | 1 | 2 | 335 | 861 |
| 957 | Radiography | 2 | 2 | 1020 | 2201 |
| 957 | Computational Linguistics | 1 | 2 | 1241 | 1880 |
| 957 | Heterocyclic chemistry | 2 | 2 | 837 | 1728 |
| 957 | Powder Metallurgy | 1 | 2 | 808 | 1142 |
| 957 | Feminist theory | 1 | 2 | 427 | 627 |
| 957 | Climate change | 1 | 2 | 1970 | 3135 |
| 957 | Helminthology | 1 | 2 | 372 | 668 |
| 957 | Feminism | 1 | 2 | 1152 | 1665 |
| 957 | Mass Media | 1 | 2 | 1812 | 2152 |
| 957 | micromechanics | 1 | 2 | 1220 | 1970 |
| 957 | Asymmetric synthesis | 2 | 2 | 181 | 688 |
| 957 | East Asia | 1 | 2 | 1368 | 2076 |
| 957 | Korea | 1 | 2 | 833 | 1316 |
| 957 | Sulfur | 1 | 2 | 264 | 544 |
| 957 | Communication | 1 | 2 | 3934 | 5423 |
| 957 | Library Science | 1 | 2 | 2703 | 3250 |
| 957 | libraries | 1 | 2 | 1624 | 1765 |
| 957 | telecommunication in education | 1 | 2 | 171 | 331 |
| 957 | Statistical models | 1 | 2 | 247 | 498 |
| 957 | Helminths | 1 | 2 | 372 | 668 |
| 957 | Philippines | 1 | 2 | 313 | 555 |
| 957 | Insect biochemistry | 1 | 2 | 911 | 1456 |
| 981 | Humanities | 1 | 1 | 3877 | 5291 |
| 981 | Information Theory | 1 | 1 | 2202 | 3161 |
| 981 | Electrical Engineering | 2 | 1 | 4809 | 7172 |
| 981 | Cognitive Psychology | 1 | 1 | 841 | 1340 |
| 981 | Social Choice Theory | 1 | 1 | 466 | 725 |
| 981 | Cybernetics | 1 | 1 | 2570 | 3936 |
| 981 | Hydrology | 2 | 1 | 3566 | 6349 |
| 981 | Plant Genetics | 1 | 1 | 1314 | 2124 |
| 981 | Neonatal Nursing | 1 | 1 | 386 | 694 |
| 981 | Pediatric Hematology | 1 | 1 | 905 | 1466 |
| 981 | Tissue Engineering | 2 | 1 | 483 | 1299 |
| 981 | Regenerative Medicine | 1 | 1 | 378 | 833 |
| 981 | Welfare Economics | 1 | 1 | 809 | 1217 |
| 981 | Psychometrics | 1 | 1 | 815 | 1343 |
| 981 | Neonatal intensive care | 1 | 1 | 318 | 579 |
| 981 | Liquid Crystals | 1 | 1 | 1667 | 2291 |
| 981 | Intelligence | 1 | 1 | 497 | 862 |
| 981 | Religion and Psychology | 1 | 1 | 1191 | 2083 |
| 981 | Investment analysis | 1 | 1 | 1570 | 2360 |
| 981 | Minority Health | 1 | 1 | 220 | 554 |