| 1 | Chemistry | 346 | 23.6K | 991 | 694 |
| 2 | Physics | 183 | 12.2K | 1390 | 1333 |
| 3 | Science | 130 | 11.5K | 1597 | 1309 |
| 4 | Biology | 93 | 9.9K | 1864 | 1379 |
| 5 | Microbiology | 136 | 9.7K | 936 | 713 |
| 6 | Genetics | 53 | 7.7K | 814 | 472 |
| 7 | Molecular Biology | 111 | 7.3K | 1461 | 1170 |
| 8 | Cell differentiation | 7 | 6.1K | 1127 | 246 |
| 9 | Cell death | 1 | 5.7K | 1774 | 151 |
| 10 | Materials | 120 | 5.6K | 1152 | 929 |
| 11 | Medicine | 98 | 5.3K | 2036 | 1649 |
| 12 | Natural history | 25 | 5.1K | 1243 | 1260 |
| 13 | Astronomy | 161 | 4.5K | 481 | 622 |
| 14 | Astrophysics | 76 | 4.5K | 752 | 715 |
| 15 | Psychiatry | 87 | 4.4K | 692 | 653 |
| 16 | Research | 89 | 4.2K | 1694 | 1278 |
| 17 | Biochemistry | 154 | 4.2K | 1520 | 1702 |
| 18 | Nanotechnology | 70 | 3.9K | 1154 | 948 |
| 19 | Computational Biology | 10 | 3.7K | 1644 | 348 |
| 20 | Mental Disorders | 44 | 3.7K | 661 | 457 |
| 21 | Materials Science | 61 | 3.7K | 1152 | 806 |
| 22 | genome | 11 | 3.6K | 768 | 285 |
| 23 | Bioinformatics | 6 | 3.5K | 1590 | 270 |
| 24 | Neurology | 84 | 3.2K | 1029 | 1120 |
| 25 | gene mapping | 20 | 3.0K | 693 | 286 |
| 26 | Diagnostic microbiology | 31 | 2.9K | 293 | 249 |
| 27 | Plant cells | 5 | 2.8K | 863 | 366 |
| 28 | Biocompatible Materials | 49 | 2.8K | 1000 | 869 |
| 29 | Nanostructured Materials | 35 | 2.7K | 1034 | 598 |
| 30 | Clinical Psychology | 12 | 2.7K | 664 | 260 |
| 31 | psychotherapy | 18 | 2.5K | 462 | 205 |
| 32 | Renewable Energy Sources | 19 | 2.5K | 937 | 556 |
| 33 | Solid State Physics | 80 | 2.4K | 912 | 796 |
| 34 | Ecology | 58 | 2.4K | 1514 | 1609 |
| 35 | Neurophysiology | 33 | 2.4K | 856 | 676 |
| 36 | Mental illness | 19 | 2.3K | 741 | 434 |
| 37 | Spectrum analysis | 38 | 2.2K | 1260 | 905 |
| 38 | drugs | 31 | 2.2K | 513 | 221 |
| 39 | Botany | 46 | 2.2K | 1099 | 966 |
| 40 | DNA polymerases | 7 | 2.1K | 244 | 127 |
| 41 | Pharmacology | 56 | 2.1K | 1345 | 1203 |
| 42 | Condensed Matter | 66 | 2.1K | 931 | 827 |
| 43 | Catalysis | 30 | 2.0K | 1393 | 1051 |
| 44 | Immunology | 34 | 2.0K | 1194 | 1059 |
| 45 | Nuclear Physics | 59 | 1.9K | 1316 | 1107 |
| 46 | Environment | 31 | 1.9K | 1544 | 1597 |
| 47 | Psychology | 76 | 1.9K | 856 | 954 |
| 48 | Pharmaceutical Chemistry | 41 | 1.9K | 1093 | 898 |
| 49 | Pollution | 30 | 1.8K | 1903 | 1626 |
| 50 | Cytology | 17 | 1.7K | 1984 | 1457 |
| 51 | United States | 42 | 1.7K | 1222 | 895 |
| 52 | Molecular evolution | 27 | 1.7K | 388 | 328 |
| 53 | Human genetics | 10 | 1.7K | 1273 | 1285 |
| 54 | Metals | 12 | 1.7K | 1084 | 428 |
| 55 | International Finance | 24 | 1.6K | 426 | 179 |
| 56 | Telecommunication | 26 | 1.6K | 889 | 541 |
| 57 | Bioorganic chemistry | 48 | 1.6K | 630 | 652 |
| 58 | Medical Microbiology | 33 | 1.6K | 625 | 649 |
| 59 | Pharmacy | 26 | 1.5K | 615 | 336 |
| 60 | Statistical physics | 75 | 1.5K | 803 | 863 |
| 61 | Rheumatology | 15 | 1.5K | 459 | 271 |
| 62 | Brain | 28 | 1.5K | 878 | 716 |
| 63 | nanoscience | 28 | 1.5K | 999 | 887 |
| 64 | Organic Chemistry | 38 | 1.5K | 1014 | 807 |
| 65 | Health | 10 | 1.4K | 1125 | 348 |
| 66 | Evolution | 18 | 1.4K | 732 | 550 |
| 67 | Bone diseases | 5 | 1.4K | 292 | 99 |
| 68 | Photochemistry | 22 | 1.3K | 495 | 242 |
| 69 | Molecular Microbiology | 19 | 1.3K | 292 | 295 |
| 70 | Physical Chemistry | 16 | 1.3K | 1002 | 599 |
| 70 | Physical organic chemistry | 39 | 1.3K | 215 | 158 |
| 72 | Public Health | 68 | 1.3K | 987 | 1391 |
| 73 | child abuse | 9 | 1.3K | 382 | 142 |
| 74 | Cell Biology | 11 | 1.3K | 2327 | 1693 |
| 75 | Polymers | 39 | 1.3K | 1515 | 1268 |
| 76 | Biodiversity conservation | 15 | 1.3K | 704 | 723 |
| 77 | Political Science | 7 | 1.2K | 1191 | 297 |
| 78 | Obstetrics | 22 | 1.2K | 759 | 489 |
| 79 | Electrochemistry | 36 | 1.2K | 1249 | 1002 |
| 80 | Physiology | 14 | 1.2K | 2071 | 1255 |
| 81 | Water pollution | 27 | 1.2K | 878 | 841 |
| 82 | biological evolution | 32 | 1.2K | 573 | 719 |
| 83 | Water | 21 | 1.2K | 893 | 863 |
| 84 | Biotechnology | 17 | 1.2K | 2949 | 2242 |
| 85 | Nonlinear Dynamics | 63 | 1.1K | 445 | 576 |
| 86 | Pharmaceutical Technology | 18 | 1.1K | 530 | 296 |
| 87 | Surface Chemistry | 30 | 1.1K | 1373 | 1222 |
| 88 | Biomass Energy | 5 | 1.1K | 2005 | 823 |
| 88 | Climate change | 10 | 1.1K | 545 | 664 |
| 88 | Eutrophication | 10 | 1.1K | 534 | 659 |
| 91 | Biomass | 4 | 1.1K | 493 | 92 |
| 92 | Pharmacokinetics | 15 | 1.1K | 286 | 133 |
| 93 | Neuropsychology | 18 | 1.0K | 890 | 616 |
| 94 | Psychophysiology | 23 | 1.0K | 1000 | 962 |
| 95 | Aging | 229 | 1.0K | 160 | 779 |
| 96 | polymerization | 27 | 1.0K | 1518 | 1194 |
| 97 | Parasitology | 14 | 1.0K | 1165 | 558 |
| 98 | finance | 11 | 997 | 1221 | 502 |
| 99 | Quantum electronics | 55 | 995 | 248 | 299 |
| 100 | Biopharmaceutics | 11 | 991 | 515 | 219 |
| 101 | Optical materials | 28 | 989 | 907 | 957 |
| 102 | Solar Energy | 7 | 982 | 1141 | 409 |
| 103 | Electronics | 20 | 956 | 1586 | 964 |
| 104 | Sociology | 22 | 954 | 1001 | 690 |
| 105 | Genomics | 21 | 946 | 1184 | 1023 |
| 106 | Education | 35 | 927 | 1050 | 729 |
| 107 | Photonics | 50 | 894 | 414 | 706 |
| 108 | Anatomy | 14 | 893 | 877 | 580 |
| 109 | rehabilitation | 24 | 891 | 635 | 573 |
| 110 | Geology | 32 | 888 | 1043 | 955 |
| 110 | Biomedical Engineering | 32 | 888 | 1630 | 1693 |
| 110 | Photobiology | 16 | 888 | 440 | 211 |
| 113 | Neurobiology | 8 | 886 | 1075 | 748 |
| 113 | marketing | 11 | 886 | 951 | 571 |
| 115 | Mathematical Physics | 37 | 878 | 853 | 722 |
| 116 | Signal Processing | 17 | 875 | 1135 | 851 |
| 117 | Cancer | 21 | 872 | 1455 | 1483 |
| 118 | lasers | 57 | 870 | 322 | 441 |
| 119 | Electrochemical Analysis | 20 | 864 | 494 | 332 |
| 120 | Chromosome mapping | 13 | 863 | 823 | 608 |
| 121 | Medical Laboratory Science | 12 | 858 | 1094 | 779 |
| 122 | Economics | 28 | 830 | 1548 | 1161 |
| 122 | Plant Ecology | 14 | 830 | 799 | 671 |
| 124 | Medical genetics | 15 | 819 | 1312 | 1322 |
| 125 | risk factors | 3 | 807 | 697 | 173 |
| 125 | Cardiovascular diseases | 4 | 807 | 1436 | 444 |
| 127 | Geriatrics | 234 | 787 | 165 | 840 |
| 128 | diseases | 1 | 773 | 625 | 406 |
| 128 | Disease | 1 | 773 | 635 | 404 |
| 130 | Soil Science | 4 | 769 | 1679 | 604 |
| 131 | Europe | 39 | 758 | 786 | 817 |
| 132 | Analytical Chemistry | 26 | 756 | 1769 | 1741 |
| 133 | Parasitic Diseases | 15 | 755 | 895 | 642 |
| 134 | Behavior | 10 | 752 | 1714 | 1288 |
| 135 | Reproduction | 15 | 746 | 1007 | 741 |
| 136 | Virology | 12 | 745 | 1594 | 1681 |
| 137 | disabilities | 14 | 743 | 244 | 120 |
| 138 | Epidemiology | 33 | 739 | 1034 | 1247 |
| 139 | Nanoparticles | 7 | 737 | 1281 | 630 |
| 140 | Solid State Chemistry | 26 | 734 | 855 | 690 |
| 141 | Nervous system | 20 | 730 | 859 | 991 |
| 142 | Surgery | 50 | 714 | 341 | 911 |
| 143 | Radio | 13 | 703 | 756 | 584 |
| 144 | Biophysics | 31 | 686 | 2059 | 2395 |
| 145 | Image Processing | 11 | 676 | 1215 | 797 |
| 146 | Business | 13 | 651 | 1019 | 860 |
| 147 | Cognition | 24 | 646 | 555 | 644 |
| 148 | Metallurgy | 12 | 643 | 1222 | 757 |
| 148 | computer networks | 31 | 643 | 704 | 821 |
| 150 | Elections | 11 | 631 | 152 | 61 |
| 151 | Molecular Genetics | 8 | 621 | 1137 | 831 |
| 152 | Yeast | 8 | 618 | 203 | 113 |
| 153 | Nutrition | 26 | 611 | 1478 | 1830 |
| 154 | drug therapy | 18 | 610 | 876 | 876 |
| 155 | nucleic acids | 6 | 605 | 1281 | 990 |
| 156 | Japan | 6 | 585 | 1463 | 354 |
| 157 | Magnetic Materials | 17 | 581 | 672 | 525 |
| 158 | management | 24 | 580 | 1203 | 1380 |
| 159 | Carbon | 10 | 575 | 684 | 668 |
| 160 | Political Participation | 5 | 569 | 233 | 68 |
| 160 | election law | 5 | 569 | 170 | 53 |
| 160 | Voting | 5 | 569 | 161 | 51 |
| 163 | Diabetes mellitus | 4 | 563 | 1770 | 1012 |
| 163 | Diabetes | 4 | 563 | 1873 | 1053 |
| 165 | Geriatric Psychiatry | 21 | 561 | 313 | 348 |
| 166 | Hippocampus | 7 | 555 | 156 | 127 |
| 167 | Engineering Geology | 11 | 549 | 732 | 559 |
| 168 | Colloids | 21 | 548 | 1555 | 1786 |
| 169 | human behavior | 3 | 543 | 2359 | 1251 |
| 170 | Intellectual disability | 37 | 538 | 144 | 238 |
| 171 | Agronomy | 2 | 526 | 727 | 234 |
| 171 | Liquid Crystals | 46 | 526 | 130 | 116 |
| 173 | Bioengineering | 9 | 523 | 2705 | 2383 |
| 174 | soil microbiology | 12 | 518 | 682 | 847 |
| 175 | Developmental Biology | 5 | 505 | 1540 | 1088 |
| 176 | Paleoclimatology | 19 | 498 | 395 | 493 |
| 176 | Clinical Chemistry | 15 | 498 | 1353 | 1415 |
| 176 | Cognitive neuroscience | 9 | 498 | 538 | 509 |
| 179 | Geophysics | 17 | 494 | 1656 | 1640 |
| 180 | Social Sciences | 22 | 492 | 1270 | 933 |
| 181 | Environmental Management | 20 | 491 | 1040 | 1568 |
| 182 | Quantum Gravity | 34 | 490 | 818 | 992 |
| 182 | Child Development | 11 | 490 | 975 | 814 |
| 184 | Earth Sciences | 17 | 488 | 1449 | 1403 |
| 185 | Therapeutics | 4 | 485 | 1494 | 831 |
| 186 | Cognitive Science | 11 | 479 | 684 | 627 |
| 187 | miniaturization | 5 | 477 | 1470 | 1019 |
| 188 | Environmental Geology | 7 | 473 | 1114 | 659 |
| 189 | Aquatic ecology | 9 | 470 | 488 | 277 |
| 190 | Soil biology | 6 | 465 | 649 | 553 |
| 191 | Engineering | 16 | 463 | 2089 | 1570 |
| 192 | Forensic Psychiatry | 19 | 461 | 132 | 116 |
| 193 | Transnational corporations | 4 | 460 | 197 | 40 |
| 194 | Light | 6 | 459 | 651 | 637 |
| 195 | Critical Care | 14 | 449 | 685 | 966 |
| 196 | Immunity | 8 | 446 | 1173 | 1401 |
| 197 | natural disasters | 5 | 444 | 1025 | 485 |
| 198 | Genetic therapy | 2 | 442 | 1430 | 584 |
| 199 | Neurochemistry | 13 | 439 | 1164 | 1194 |
| 200 | Health Services Administration | 10 | 435 | 445 | 316 |
| 200 | Optics | 32 | 435 | 1796 | 1726 |
| 202 | Gerontology | 20 | 434 | 680 | 674 |
| 202 | Immune system | 7 | 434 | 643 | 794 |
| 204 | Genetic engineering | 4 | 432 | 2009 | 1164 |
| 205 | Pharmacogenetics | 1 | 430 | 1662 | 428 |
| 206 | plasma spraying | 11 | 425 | 73 | 62 |
| 207 | Optical Communications | 14 | 417 | 291 | 192 |
| 208 | energy conservation | 3 | 413 | 2115 | 1182 |
| 209 | health workforce | 7 | 412 | 71 | 61 |
| 210 | Clinical Pharmacology | 11 | 411 | 727 | 558 |
| 211 | Artificial Intelligence | 17 | 410 | 1735 | 1778 |
| 211 | Health Policy | 25 | 410 | 638 | 906 |
| 211 | Critical Care Medicine | 9 | 410 | 832 | 993 |
| 211 | Drug design | 5 | 410 | 1358 | 759 |
| 215 | General Surgery | 23 | 408 | 177 | 169 |
| 216 | Environmental Policy | 17 | 403 | 1272 | 1944 |
| 217 | internet | 14 | 402 | 633 | 637 |
| 218 | Marine Biology | 17 | 401 | 1135 | 1269 |
| 219 | Health Education | 12 | 396 | 832 | 651 |
| 220 | Information Technology | 12 | 391 | 1281 | 1011 |
| 221 | Psycholinguistics | 7 | 387 | 594 | 459 |
| 222 | Mathematics | 26 | 384 | 2552 | 2183 |
| 222 | Developmental Genetics | 2 | 384 | 624 | 451 |
| 224 | Composite Materials | 9 | 382 | 1622 | 1537 |
| 225 | medical education | 20 | 378 | 556 | 627 |
| 226 | Teaching | 9 | 377 | 917 | 583 |
| 227 | Alzheimer's disease | 24 | 374 | 551 | 558 |
| 228 | Linguistics | 10 | 373 | 797 | 455 |
| 229 | Environmental Engineering | 19 | 371 | 1585 | 2118 |
| 230 | Child welfare | 15 | 364 | 360 | 360 |
| 231 | Stem cells | 6 | 360 | 1162 | 926 |
| 231 | Memory | 16 | 360 | 709 | 926 |
| 233 | Immunotherapy | 2 | 359 | 2345 | 1173 |
| 234 | Orthopedics | 9 | 355 | 911 | 728 |
| 234 | Dynamics | 8 | 355 | 1136 | 516 |
| 236 | Health Services Research | 21 | 354 | 484 | 673 |
| 236 | health planning | 18 | 354 | 731 | 770 |
| 238 | Quantum theory | 7 | 351 | 560 | 344 |
| 239 | plant communities | 7 | 350 | 712 | 717 |
| 240 | Wireless Communication Systems | 19 | 346 | 971 | 1055 |
| 240 | counseling | 16 | 346 | 476 | 502 |
| 242 | Histology | 3 | 344 | 1887 | 1014 |
| 243 | environmental pollution | 18 | 342 | 1995 | 2781 |
| 244 | Human-Computer Interaction | 11 | 337 | 735 | 691 |
| 245 | Energy Policy | 8 | 335 | 1681 | 1776 |
| 246 | Meteorology | 5 | 333 | 1759 | 1407 |
| 247 | Retina | 1 | 329 | 296 | 232 |
| 247 | eye | 1 | 329 | 354 | 234 |
| 249 | Infections | 7 | 327 | 719 | 743 |
| 249 | infection | 7 | 327 | 1091 | 950 |
| 251 | Microelectronics | 6 | 326 | 1368 | 1056 |
| 252 | United Kingdom | 11 | 322 | 790 | 927 |
| 253 | Evolutionary Genetics | 5 | 321 | 453 | 225 |
| 253 | Molecular Epidemiology | 5 | 321 | 453 | 225 |
| 255 | Oncology | 7 | 320 | 1523 | 1885 |
| 255 | Neuropsychiatry | 6 | 320 | 601 | 420 |
| 255 | Spine | 8 | 320 | 380 | 412 |
| 258 | Metabolic diseases | 17 | 317 | 950 | 1631 |
| 259 | Palliative Care | 11 | 314 | 377 | 315 |
| 259 | Fracture mechanics | 12 | 314 | 673 | 638 |
| 261 | Pediatrics | 15 | 312 | 1017 | 1464 |
| 261 | Social work | 26 | 312 | 365 | 463 |
| 263 | Primary health care | 14 | 311 | 648 | 690 |
| 264 | Mental Health | 25 | 309 | 441 | 674 |
| 264 | musculoskeletal system | 7 | 309 | 58 | 44 |
| 266 | Pregnancy | 5 | 307 | 619 | 333 |
| 267 | Automation | 3 | 306 | 2198 | 1305 |
| 268 | Ecosystem management | 3 | 303 | 694 | 347 |
| 269 | Forest Ecology | 5 | 301 | 803 | 618 |
| 269 | Forest Management | 5 | 301 | 760 | 568 |
| 271 | Psychiatric Nursing | 24 | 299 | 104 | 181 |
| 272 | Communication | 6 | 295 | 1482 | 1022 |
| 273 | Genetic regulation | 2 | 294 | 1414 | 823 |
| 273 | cloning | 2 | 294 | 829 | 551 |
| 275 | Qualitative Research | 3 | 287 | 489 | 191 |
| 276 | Global Health | 8 | 281 | 575 | 344 |
| 276 | Cerebral cortex | 5 | 281 | 693 | 606 |
| 278 | Learning disabilities | 31 | 280 | 155 | 336 |
| 279 | Bacteria | 3 | 276 | 354 | 283 |
| 279 | Bacterial infections | 3 | 276 | 833 | 686 |
| 281 | Environmental Health | 14 | 274 | 2618 | 3562 |
| 281 | global environmental change | 3 | 274 | 836 | 608 |
| 283 | Sports Medicine | 7 | 272 | 1632 | 1196 |
| 284 | Hydrology | 10 | 269 | 1448 | 1377 |
| 285 | Mental Health Services | 13 | 268 | 517 | 573 |
| 286 | Paleoecology | 13 | 267 | 470 | 626 |
| 286 | Developmental Immunology | 2 | 267 | 1036 | 437 |
| 288 | Paleogeography | 12 | 266 | 423 | 580 |
| 289 | Virulence | 4 | 261 | 969 | 1060 |
| 290 | Information Theory | 5 | 256 | 1146 | 765 |
| 290 | Intelligence | 5 | 256 | 182 | 156 |
| 292 | Archaeology | 5 | 255 | 1068 | 594 |
| 292 | Clinical Immunology | 7 | 255 | 806 | 757 |
| 292 | Sites | 4 | 255 | 453 | 362 |
| 295 | Geography | 11 | 250 | 1167 | 1219 |
| 296 | Anxiety Disorders | 2 | 244 | 610 | 454 |
| 297 | Long-Term Care | 9 | 241 | 247 | 353 |
| 297 | Long-term care facilities | 9 | 241 | 245 | 351 |
| 299 | Endocrinology | 19 | 235 | 1231 | 2245 |
| 300 | Medical Physics | 8 | 234 | 1060 | 1083 |
| 300 | Biomechanics | 3 | 234 | 1456 | 811 |
| 302 | Child | 15 | 233 | 1020 | 1332 |
| 303 | Medical Technology | 9 | 232 | 939 | 1007 |
| 303 | Adolescent | 19 | 232 | 687 | 1078 |
| 303 | alcoholism | 16 | 232 | 551 | 884 |
| 306 | drug addiction | 15 | 229 | 439 | 744 |
| 307 | water supply | 5 | 228 | 689 | 664 |
| 308 | Geochemistry | 9 | 225 | 1218 | 1384 |
| 308 | environmental protection | 10 | 225 | 1998 | 2451 |
| 308 | Child psychology | 3 | 225 | 1362 | 1013 |
| 311 | Hematology | 15 | 224 | 1420 | 1993 |
| 312 | Detectors | 5 | 222 | 1309 | 831 |
| 313 | Diet | 7 | 220 | 1382 | 1723 |
| 314 | brain mapping | 7 | 212 | 412 | 547 |
| 315 | Occupational Therapy | 22 | 211 | 242 | 279 |
| 316 | Pathology | 8 | 210 | 1472 | 1695 |
| 316 | Environmental monitoring | 11 | 210 | 2125 | 2986 |
| 318 | Hypertension | 2 | 209 | 1800 | 1451 |
| 318 | Drying | 2 | 209 | 490 | 185 |
| 320 | Toxicology | 19 | 208 | 2058 | 3440 |
| 320 | Fiber Optics | 13 | 208 | 444 | 565 |
| 320 | Animal genetics | 5 | 208 | 436 | 352 |
| 323 | Molecular Pharmacology | 6 | 207 | 545 | 628 |
| 323 | Language Disorders | 11 | 207 | 391 | 437 |
| 323 | Speech Disorders | 11 | 207 | 477 | 584 |
| 326 | Chemotherapy | 8 | 204 | 793 | 933 |
| 326 | Breeding | 3 | 204 | 1199 | 811 |
| 328 | Green Chemistry | 5 | 202 | 1406 | 1483 |
| 329 | Public Policy | 6 | 197 | 1200 | 1108 |
| 329 | Radiography | 3 | 197 | 792 | 731 |
| 331 | Metabolism | 12 | 196 | 1378 | 2312 |
| 332 | Urology | 11 | 194 | 930 | 1212 |
| 332 | Internet of Things | 8 | 194 | 645 | 787 |
| 334 | Mood Disorders | 1 | 193 | 22 | 15 |
| 334 | Africa | 4 | 193 | 1473 | 604 |
| 336 | Combustion | 7 | 192 | 800 | 813 |
| 337 | Sustainable Development | 5 | 191 | 1622 | 1490 |
| 337 | Combinatorial chemistry | 3 | 191 | 927 | 670 |
| 339 | Educational Technology | 10 | 189 | 767 | 903 |
| 339 | Bioinorganic chemistry | 12 | 189 | 702 | 931 |
| 341 | Oceanography | 4 | 188 | 1555 | 1262 |
| 342 | Agriculture | 8 | 187 | 1399 | 1454 |
| 343 | speech therapy | 6 | 183 | 272 | 199 |
| 344 | Human Geography | 7 | 181 | 697 | 584 |
| 344 | Cardiovascular system | 1 | 181 | 2254 | 1602 |
| 346 | Allergy | 6 | 179 | 807 | 1225 |
| 346 | Ireland | 35 | 179 | 16 | 18 |
| 348 | Agricultural Ecology | 4 | 178 | 1021 | 1039 |
| 348 | Online social networks | 3 | 178 | 279 | 131 |
| 348 | mental health promotion | 3 | 178 | 151 | 104 |
| 348 | Quality of life | 7 | 178 | 936 | 1155 |
| 348 | energy resources | 5 | 178 | 1009 | 1403 |
| 353 | Technology | 7 | 176 | 2955 | 2740 |
| 354 | Cytogenetics | 3 | 175 | 1533 | 1399 |
| 354 | Animal Behavior | 6 | 175 | 1290 | 1507 |
| 356 | Multimedia Systems | 6 | 173 | 1344 | 1008 |
| 356 | animals | 7 | 173 | 848 | 656 |
| 358 | Building Materials | 4 | 172 | 1488 | 1473 |
| 359 | Small Business | 4 | 171 | 648 | 765 |
| 359 | Middle East | 3 | 171 | 1035 | 352 |
| 361 | Animal Physiology | 3 | 170 | 176 | 132 |
| 361 | Natural selection | 3 | 170 | 176 | 132 |
| 361 | genetic selection | 3 | 170 | 176 | 132 |
| 364 | Electrical Engineering | 13 | 169 | 1948 | 1811 |
| 364 | Biodiversity | 5 | 169 | 1847 | 1709 |
| 366 | Communication Disorders | 4 | 168 | 254 | 151 |
| 367 | Urban Policy | 4 | 167 | 633 | 565 |
| 367 | city planning | 4 | 167 | 1425 | 995 |
| 367 | drug evaluation | 4 | 167 | 1228 | 931 |
| 370 | Pharmacognosy | 2 | 166 | 2250 | 1555 |
| 370 | Medicinal plants | 2 | 166 | 1829 | 1206 |
| 370 | Money | 6 | 166 | 146 | 233 |
| 373 | innovation | 4 | 165 | 503 | 612 |
| 374 | Parasites | 2 | 164 | 1931 | 1098 |
| 375 | Perception | 12 | 163 | 883 | 1335 |
| 376 | Chemical Engineering | 8 | 162 | 2983 | 3458 |
| 376 | Physical Therapy | 12 | 162 | 567 | 978 |
| 376 | Action Research | 10 | 162 | 47 | 70 |
| 379 | Hydrogeology | 7 | 159 | 463 | 486 |
| 380 | Ophthalmology | 7 | 158 | 1208 | 1350 |
| 380 | Enteral nutrition | 4 | 158 | 699 | 735 |
| 380 | Parenteral nutrition | 4 | 158 | 833 | 853 |
| 383 | Plant physiology | 5 | 157 | 1622 | 1828 |
| 384 | Neurosurgery | 5 | 156 | 735 | 792 |
| 384 | Ethology | 5 | 156 | 1115 | 1380 |
| 384 | Business Ethics | 4 | 156 | 782 | 980 |
| 384 | Pancreatic diseases | 5 | 156 | 241 | 222 |
| 388 | freshwater biology | 6 | 155 | 645 | 650 |
| 389 | Growth | 3 | 154 | 1137 | 1200 |
| 390 | Patient education | 6 | 153 | 369 | 476 |
| 390 | Semiconductors | 17 | 153 | 782 | 1219 |
| 392 | Dementia | 20 | 151 | 610 | 850 |
| 393 | Sports | 1 | 148 | 2922 | 1195 |
| 394 | older people | 12 | 147 | 738 | 814 |
| 395 | behavior therapy | 4 | 146 | 698 | 623 |
| 396 | mass transfer | 6 | 145 | 1183 | 1331 |
| 396 | Visual Perception | 11 | 145 | 797 | 1274 |
| 396 | Attention | 11 | 145 | 833 | 1329 |
| 399 | Soft Condensed Matter | 7 | 143 | 713 | 852 |
| 399 | Learning | 9 | 143 | 705 | 973 |
| 401 | thinking | 3 | 141 | 239 | 166 |
| 401 | Creativity | 3 | 141 | 229 | 184 |
| 403 | Organometallic chemistry | 10 | 139 | 1095 | 1258 |
| 404 | Systems Theory | 7 | 138 | 293 | 173 |
| 404 | System analysis | 9 | 138 | 1505 | 1750 |
| 404 | multimedia | 5 | 138 | 379 | 469 |
| 404 | Interactive multimedia | 5 | 138 | 446 | 498 |
| 408 | Social Psychology | 7 | 137 | 1348 | 1628 |
| 408 | Microscopy | 7 | 137 | 1062 | 953 |
| 410 | Industrial Microbiology | 1 | 136 | 3006 | 1930 |
| 410 | soil management | 1 | 136 | 925 | 546 |
| 412 | Inflammation | 4 | 135 | 1129 | 1268 |
| 412 | Chronic diseases | 5 | 135 | 466 | 663 |
| 414 | arthritis | 7 | 131 | 792 | 1251 |
| 415 | Ecological Genetics | 1 | 128 | 1157 | 369 |
| 415 | Conservation Biology | 1 | 128 | 1833 | 1085 |
| 415 | Population Genetics | 1 | 128 | 1873 | 1244 |
| 415 | Developmental Disabilities | 5 | 128 | 731 | 922 |
| 415 | Planets | 2 | 128 | 1670 | 1484 |
| 420 | Regional Planning | 2 | 126 | 1819 | 1097 |
| 420 | biopolymers | 6 | 126 | 860 | 995 |
| 422 | Strategic planning | 3 | 125 | 775 | 597 |
| 423 | Mycology | 5 | 124 | 1294 | 1399 |
| 423 | personality | 3 | 124 | 1359 | 1273 |
| 425 | Embryology | 5 | 121 | 1181 | 1552 |
| 425 | Molecular ecology | 1 | 121 | 1668 | 1311 |
| 425 | radioactive waste | 3 | 121 | 815 | 1104 |
| 425 | industrial waste | 3 | 121 | 843 | 1105 |
| 425 | Hazardous waste | 3 | 121 | 952 | 1165 |
| 430 | Volcanoes | 2 | 120 | 338 | 246 |
| 431 | Intercultural Communication | 2 | 119 | 474 | 268 |
| 432 | Public Administration | 3 | 118 | 1421 | 835 |
| 432 | sustainability | 6 | 118 | 544 | 942 |
| 434 | Soil Mechanics | 7 | 117 | 769 | 973 |
| 434 | Mobile Computing | 6 | 117 | 901 | 888 |
| 434 | Applied Linguistics | 4 | 117 | 480 | 341 |
| 434 | eugenics | 2 | 117 | 695 | 434 |
| 438 | Adoption | 3 | 116 | 98 | 32 |
| 438 | Post-traumatic stress disorder | 1 | 116 | 1231 | 685 |
| 440 | Molecular cloning | 1 | 115 | 2371 | 1326 |
| 440 | Genetic recombination | 1 | 115 | 2318 | 1313 |
| 440 | Water quality management | 9 | 115 | 1056 | 1449 |
| 440 | Recombinant DNA | 1 | 115 | 2467 | 1394 |
| 444 | Heat Exchangers | 2 | 114 | 1426 | 1224 |
| 444 | Medical Anthropology | 2 | 114 | 1521 | 1392 |
| 446 | Paleontology | 7 | 113 | 880 | 960 |
| 447 | Plant diseases | 8 | 112 | 1237 | 1546 |
| 447 | technical education | 6 | 112 | 402 | 435 |
| 447 | Aquaculture | 4 | 112 | 1235 | 1167 |
| 450 | Computer Science | 7 | 111 | 1497 | 1439 |
| 450 | Plant breeding | 2 | 111 | 1044 | 731 |
| 450 | Respiration | 4 | 111 | 1255 | 1409 |
| 453 | Structural Engineering | 7 | 110 | 1138 | 1271 |
| 454 | Waste management | 7 | 109 | 941 | 1086 |
| 455 | Counseling Psychology | 4 | 108 | 179 | 220 |
| 455 | Respiratory system | 3 | 108 | 591 | 592 |
| 455 | Crystal growth | 4 | 108 | 943 | 939 |
| 455 | Sun | 1 | 108 | 576 | 328 |
| 459 | Diplomatic relations | 2 | 107 | 900 | 236 |
| 460 | Zoology | 7 | 106 | 1818 | 1904 |
| 460 | Phylogeny | 3 | 106 | 936 | 1046 |
| 462 | Microbial Ecology | 2 | 105 | 2635 | 2661 |
| 462 | Methodology | 1 | 105 | 931 | 267 |
| 464 | Environmental Law | 2 | 104 | 1351 | 1486 |
| 464 | Fluid Dynamics | 4 | 104 | 1029 | 942 |
| 464 | Nanostructures | 5 | 104 | 1841 | 2093 |
| 464 | energy development | 3 | 104 | 873 | 944 |
| 464 | Genes | 4 | 104 | 1017 | 1049 |
| 469 | women's rights | 2 | 103 | 243 | 124 |
| 469 | Women's health | 2 | 103 | 1654 | 1029 |
| 471 | Randomized Controlled Trials | 11 | 102 | 488 | 773 |
| 472 | Community Psychiatry | 4 | 101 | 830 | 960 |
| 472 | Control Theory | 5 | 101 | 1393 | 1329 |
| 472 | Organizational change | 8 | 101 | 343 | 565 |
| 472 | Obesity | 5 | 101 | 1552 | 2115 |
| 476 | Environmental pollutants | 6 | 100 | 1700 | 2369 |
| 477 | concrete | 4 | 99 | 881 | 1108 |
| 478 | Economic Development | 1 | 98 | 2708 | 1651 |
| 478 | Liver diseases | 5 | 98 | 1142 | 1729 |
| 480 | Game Theory | 1 | 97 | 931 | 400 |
| 480 | Simulation Methods | 1 | 97 | 1745 | 761 |
| 482 | Statistics | 7 | 96 | 1821 | 1868 |
| 483 | Organizational Behavior | 4 | 95 | 498 | 648 |
| 483 | Transportation | 10 | 95 | 872 | 1456 |
| 483 | Digestive system diseases | 4 | 95 | 817 | 917 |
| 486 | Psychopharmacology | 5 | 94 | 1146 | 1611 |
| 486 | foreign exchange | 2 | 94 | 422 | 373 |
| 488 | Entropy | 3 | 93 | 1216 | 779 |
| 488 | free radicals | 1 | 93 | 2028 | 1716 |
| 490 | Nursing | 8 | 92 | 1099 | 1314 |
| 490 | Wildlife conservation | 2 | 92 | 1441 | 1419 |
| 490 | Invertebrates | 3 | 92 | 609 | 527 |
| 490 | language | 6 | 92 | 567 | 801 |
| 494 | Recycling | 3 | 91 | 568 | 994 |
| 495 | Dental Public Health | 1 | 90 | 272 | 111 |
| 496 | Process Control | 2 | 89 | 1085 | 1195 |
| 496 | Production Management | 2 | 89 | 1271 | 1317 |
| 498 | Substance Abuse | 9 | 88 | 783 | 1257 |
| 498 | Australia | 5 | 88 | 1461 | 1527 |
| 500 | Mechanical Engineering | 4 | 87 | 2275 | 1803 |
| 500 | Mechatronics | 3 | 87 | 919 | 890 |
| 500 | Systems Biology | 2 | 87 | 1970 | 1630 |
| 500 | Psychiatric Epidemiology | 1 | 87 | 872 | 637 |
| 500 | Decision making | 5 | 87 | 1141 | 1350 |
| 505 | Elderly | 10 | 86 | 629 | 697 |
| 505 | drug abuse | 3 | 86 | 639 | 588 |
| 507 | Geriatric Pharmacology | 5 | 85 | 191 | 332 |
| 507 | Language and Culture | 1 | 85 | 324 | 59 |
| 507 | Animal ecology | 3 | 85 | 1172 | 1111 |
| 507 | Multilingualism | 1 | 85 | 527 | 227 |
| 511 | Biosensors | 1 | 84 | 1990 | 1846 |
| 511 | Dietetics | 7 | 84 | 345 | 526 |
| 511 | Bioelectronics | 1 | 84 | 1754 | 1714 |
| 511 | body temperature | 6 | 84 | 276 | 447 |
| 515 | Plants | 6 | 83 | 1560 | 2160 |
| 516 | environmental indicators | 3 | 82 | 1143 | 1432 |
| 516 | Genetic testing | 1 | 82 | 719 | 197 |
| 516 | nuclear magnetic resonance | 4 | 82 | 917 | 888 |
| 516 | Investment analysis | 3 | 82 | 777 | 753 |
| 516 | psychopathology | 3 | 82 | 311 | 371 |
| 516 | Optoelectronic devices | 8 | 82 | 497 | 586 |
| 522 | DNS | 3 | 81 | 532 | 579 |
| 523 | Economic History | 6 | 80 | 2705 | 2558 |
| 523 | Physical fitness | 2 | 80 | 1285 | 1069 |
| 525 | Production Planning | 1 | 79 | 536 | 346 |
| 525 | Production Control | 1 | 79 | 521 | 346 |
| 525 | Magnetic Resonance Spectroscopy | 4 | 79 | 1037 | 986 |
| 528 | Geriatric Nursing | 3 | 78 | 462 | 304 |
| 528 | local government | 1 | 78 | 577 | 342 |
| 528 | Youth | 5 | 78 | 494 | 724 |
| 528 | enzymes | 2 | 78 | 1818 | 1719 |
| 532 | Petrology | 3 | 77 | 876 | 947 |
| 532 | Ocean Engineering | 3 | 77 | 1597 | 1689 |
| 532 | Information Science | 2 | 77 | 2994 | 2495 |
| 535 | Cognitive Therapy | 3 | 75 | 621 | 645 |
| 536 | Earthquake Engineering | 3 | 74 | 1254 | 1359 |
| 536 | health behavior | 4 | 74 | 797 | 1046 |
| 538 | Land use | 4 | 73 | 976 | 1355 |
| 538 | Radio waves | 7 | 73 | 622 | 1019 |
| 538 | China | 3 | 73 | 3004 | 2836 |
| 538 | Meteorites | 2 | 73 | 973 | 1144 |
| 542 | Thorax | 2 | 72 | 530 | 619 |
| 543 | Remote Sensing | 4 | 71 | 1359 | 1198 |
| 543 | Research Design | 5 | 71 | 885 | 1346 |
| 543 | water resources | 3 | 71 | 357 | 323 |
| 543 | Metallography | 4 | 71 | 693 | 907 |
| 543 | Library Science | 1 | 71 | 2142 | 659 |
| 548 | Computer Vision | 3 | 70 | 1131 | 1383 |
| 548 | Production Engineering | 10 | 70 | 1066 | 1753 |
| 548 | Petroleum Geology | 4 | 70 | 472 | 628 |
| 551 | Bacteriology | 2 | 69 | 2158 | 2414 |
| 551 | Chemical structure | 4 | 69 | 415 | 339 |
| 553 | hospice care | 3 | 68 | 530 | 504 |
| 553 | Ferroelectricity | 23 | 68 | 283 | 786 |
| 553 | Hemophilia | 2 | 68 | 544 | 416 |
| 556 | Immunopathology | 7 | 67 | 826 | 1536 |
| 557 | Multiphase Flow | 4 | 66 | 306 | 479 |
| 557 | Political Parties | 2 | 66 | 270 | 230 |
| 557 | economic policy | 2 | 66 | 2905 | 1904 |
| 557 | software | 1 | 66 | 1763 | 1379 |
| 561 | European Union | 2 | 65 | 219 | 176 |
| 561 | educational innovations | 1 | 65 | 930 | 531 |
| 561 | Radiation effects | 1 | 65 | 1087 | 887 |
| 564 | Clinical Biochemistry | 2 | 64 | 1500 | 1403 |
| 564 | Antibacterial agents | 3 | 64 | 679 | 1000 |
| 564 | Autism | 3 | 64 | 677 | 924 |
| 564 | race relations | 3 | 64 | 573 | 525 |
| 564 | autism spectrum disorder | 3 | 64 | 61 | 90 |
| 569 | Radiology | 9 | 63 | 843 | 1350 |
| 569 | Great Lakes | 1 | 63 | 393 | 272 |
| 571 | Nephrology | 2 | 62 | 674 | 838 |
| 571 | Ecological Engineering | 2 | 62 | 821 | 1039 |
| 571 | Environmental Toxicology | 2 | 62 | 2885 | 3181 |
| 571 | Mineralogy | 3 | 62 | 1332 | 1352 |
| 571 | Schizophrenia | 2 | 62 | 1215 | 1323 |
| 571 | vibration | 4 | 62 | 1137 | 1290 |
| 571 | Public opinion | 2 | 62 | 535 | 483 |
| 571 | drug toxicity | 1 | 62 | 933 | 652 |
| 571 | Kidney diseases | 2 | 62 | 1151 | 1148 |
| 580 | Pediatric Endocrinology | 4 | 61 | 275 | 232 |
| 580 | Risk assessment | 3 | 61 | 641 | 647 |
| 580 | Metabolic disorders in children | 4 | 61 | 232 | 187 |
| 583 | Music Therapy | 3 | 60 | 206 | 174 |
| 583 | Lightweight Materials | 1 | 60 | 64 | 31 |
| 583 | electric vehicles | 1 | 60 | 567 | 393 |
| 583 | violence | 2 | 60 | 1132 | 1074 |
| 587 | Rock Mechanics | 2 | 59 | 1116 | 1085 |
| 587 | Oral Medicine | 3 | 59 | 687 | 603 |
| 587 | Geodynamics | 1 | 59 | 1228 | 1001 |
| 590 | Microwaves | 3 | 58 | 1463 | 1338 |
| 591 | Manufacturing Processes | 8 | 57 | 1459 | 2440 |
| 591 | Supramolecular chemistry | 6 | 57 | 125 | 202 |
| 591 | Raman spectroscopy | 4 | 57 | 690 | 958 |
| 591 | Organometallic compounds | 4 | 57 | 1130 | 1346 |
| 591 | France | 1 | 57 | 683 | 236 |
| 591 | educational planning | 1 | 57 | 704 | 504 |
| 597 | Cybernetics | 3 | 56 | 1613 | 1879 |
| 597 | plant molecular biology | 1 | 56 | 2146 | 2133 |
| 597 | commerce | 2 | 56 | 2010 | 1608 |
| 600 | Climatology | 4 | 55 | 1551 | 2103 |
| 600 | Structural dynamics | 2 | 55 | 1262 | 1374 |
| 600 | Electromagnetism | 4 | 55 | 912 | 1066 |
| 600 | bioclimatology | 4 | 55 | 776 | 1173 |
| 600 | Social welfare | 4 | 55 | 479 | 574 |
| 600 | Antiviral agents | 1 | 55 | 570 | 447 |
| 600 | Climate | 4 | 55 | 478 | 853 |
| 600 | weather | 4 | 55 | 449 | 798 |
| 600 | Aggression | 1 | 55 | 767 | 647 |
| 609 | Fluid Mechanics | 8 | 54 | 1074 | 1698 |
| 609 | Carcinogenesis | 1 | 54 | 1627 | 1487 |
| 609 | Bipolar Disorder | 2 | 54 | 419 | 502 |
| 609 | Crystallography | 7 | 54 | 1159 | 1245 |
| 613 | Special Education | 1 | 53 | 1257 | 715 |
| 614 | Boundary Value Problems | 3 | 52 | 769 | 761 |
| 614 | Antenna Arrays | 3 | 52 | 547 | 678 |
| 614 | Financial management | 2 | 52 | 623 | 775 |
| 614 | International Business | 2 | 52 | 221 | 200 |
| 618 | Algebra | 4 | 51 | 1345 | 1035 |
| 618 | Depression | 1 | 51 | 632 | 725 |
| 618 | Tourism | 2 | 51 | 1885 | 1987 |
| 618 | Anxiety | 1 | 51 | 832 | 903 |
| 618 | clay | 2 | 51 | 987 | 1267 |
| 618 | clay minerals | 2 | 51 | 362 | 435 |
| 624 | X-rays | 5 | 50 | 448 | 628 |
| 624 | Lipids | 1 | 50 | 2116 | 1949 |
| 626 | Cosmochemistry | 1 | 49 | 1408 | 1258 |
| 626 | Asia | 4 | 49 | 2625 | 2790 |
| 626 | Developing countries | 4 | 49 | 2068 | 2783 |
| 629 | Biogeography | 2 | 48 | 1110 | 1489 |
| 629 | Art Therapy | 2 | 48 | 235 | 196 |
| 629 | Family | 4 | 48 | 800 | 1087 |
| 632 | Nuclear Engineering | 6 | 47 | 1222 | 1583 |
| 632 | Structural design | 4 | 47 | 595 | 837 |
| 632 | Cellulose | 2 | 47 | 782 | 994 |
| 635 | Sociolinguistics | 3 | 46 | 441 | 464 |
| 635 | Molecular Spectroscopy | 4 | 46 | 1588 | 2138 |
| 635 | Food | 3 | 46 | 3167 | 4051 |
| 635 | Eastern Europe | 2 | 46 | 1318 | 721 |
| 635 | sex crimes | 3 | 46 | 605 | 789 |
| 640 | Marine Geology | 3 | 45 | 630 | 827 |
| 640 | Hallucinogens | 1 | 45 | 351 | 285 |
| 640 | Social behavior | 2 | 45 | 1404 | 1504 |
| 640 | Soil ecology | 1 | 45 | 1228 | 1191 |
| 644 | adolescence | 3 | 44 | 862 | 1175 |
| 644 | Marine Pollution | 1 | 44 | 1869 | 1820 |
| 644 | Social Change | 3 | 44 | 998 | 1676 |
| 644 | cell physiology | 1 | 44 | 2250 | 2324 |
| 648 | Pediatric Nursing | 2 | 43 | 448 | 472 |
| 648 | Advertising | 1 | 43 | 617 | 576 |
| 648 | Chemical analysis | 4 | 43 | 1064 | 1622 |
| 651 | Computer Graphics | 4 | 42 | 1528 | 2055 |
| 651 | Active Learning | 3 | 42 | 59 | 158 |
| 651 | Mass Spectrometry | 2 | 42 | 1443 | 1511 |
| 651 | Organizational innovation | 3 | 42 | 25 | 27 |
| 651 | organization | 2 | 42 | 950 | 1093 |
| 651 | Scotland | 3 | 42 | 112 | 107 |
| 657 | Tribology | 2 | 41 | 1477 | 1516 |
| 657 | Cell division | 1 | 41 | 1053 | 1016 |
| 657 | Computational Fluid Dynamics | 1 | 41 | 1111 | 856 |
| 657 | international cooperation | 3 | 41 | 585 | 927 |
| 657 | harm reduction | 2 | 41 | 258 | 322 |
| 662 | Medical Oncology | 1 | 40 | 2655 | 2617 |
| 662 | Surface-Active Agents | 1 | 40 | 1792 | 1867 |
| 662 | Nutrition physiology | 1 | 40 | 1319 | 1170 |
| 662 | Surface properties | 1 | 40 | 1867 | 1945 |
| 662 | ecosystem | 2 | 40 | 1567 | 2067 |
| 662 | Water chemistry | 2 | 40 | 454 | 487 |
| 662 | Cerebellum | 4 | 40 | 219 | 471 |
| 662 | Minerals | 4 | 40 | 635 | 1152 |
| 662 | Gastrointestinal diseases | 4 | 40 | 642 | 1012 |
| 662 | Cerebellar ataxia | 4 | 40 | 219 | 471 |
| 672 | Nanochemistry | 2 | 39 | 1584 | 1675 |
| 672 | Nonverbal Communication | 3 | 39 | 186 | 372 |
| 672 | Paleobiology | 2 | 39 | 479 | 384 |
| 672 | Bioremediation | 2 | 39 | 1128 | 1468 |
| 672 | Liposomes | 1 | 39 | 924 | 806 |
| 672 | Membranes | 1 | 39 | 2442 | 2497 |
| 672 | synthesis | 1 | 39 | 1701 | 1127 |
| 679 | Systems Engineering | 4 | 38 | 2042 | 2585 |
| 679 | Cognitive Psychology | 3 | 38 | 415 | 497 |
| 679 | Product Design | 5 | 38 | 389 | 590 |
| 679 | Space telescopes | 1 | 38 | 372 | 233 |
| 679 | Amyotrophic Lateral Sclerosis | 7 | 38 | 129 | 456 |
| 679 | Frontotemporal lobar degeneration | 7 | 38 | 108 | 334 |
| 685 | Psychosomatic Medicine | 1 | 37 | 1238 | 1290 |
| 685 | Simulation | 1 | 37 | 460 | 409 |
| 685 | Inclusive Education | 1 | 37 | 355 | 279 |
| 685 | Neural circuitry | 1 | 37 | 2843 | 2718 |
| 685 | ecological risk assessment | 1 | 37 | 576 | 464 |
| 685 | theoretical models | 1 | 37 | 460 | 409 |
| 685 | Integration | 1 | 37 | 339 | 273 |
| 685 | Health Risk Assessment | 1 | 37 | 954 | 687 |
| 693 | Tissue Engineering | 1 | 36 | 612 | 528 |
| 693 | Municipal Engineering | 4 | 36 | 267 | 658 |
| 693 | Language Policy | 1 | 36 | 205 | 188 |
| 693 | Knowledge | 3 | 36 | 447 | 441 |
| 697 | Speech-Language Pathology | 3 | 35 | 275 | 440 |
| 697 | Optoelectronics | 4 | 35 | 471 | 567 |
| 697 | Reservoirs | 1 | 35 | 367 | 244 |
| 697 | Luminescence | 3 | 35 | 1391 | 1690 |
| 697 | lakes | 1 | 35 | 176 | 110 |
| 697 | health services | 5 | 35 | 783 | 1572 |
| 697 | Agricultural systems | 1 | 35 | 562 | 710 |
| 697 | Sleep | 1 | 35 | 2455 | 2149 |
| 705 | Globalization | 3 | 34 | 551 | 898 |
| 705 | ethnic groups | 2 | 34 | 430 | 538 |
| 705 | Vocational guidance | 2 | 34 | 986 | 1193 |
| 705 | RNA | 1 | 34 | 865 | 958 |
| 705 | crime | 2 | 34 | 773 | 701 |
| 705 | bees | 5 | 34 | 282 | 536 |
| 711 | Engineering Mathematics | 2 | 33 | 2943 | 2645 |
| 711 | Animal Nutrition | 1 | 33 | 937 | 804 |
| 711 | Animal breeding | 1 | 33 | 1219 | 1098 |
| 711 | coal | 1 | 33 | 2399 | 2611 |
| 715 | Dermatology | 10 | 32 | 974 | 2251 |
| 715 | Marine Ecology | 3 | 32 | 741 | 1108 |
| 715 | Water Purification | 5 | 32 | 926 | 1710 |
| 715 | Adolescent Psychology | 2 | 32 | 994 | 1181 |
| 715 | ovary | 2 | 32 | 276 | 427 |
| 715 | natural products | 4 | 32 | 1645 | 2300 |
| 715 | Antibodies | 1 | 32 | 1114 | 1066 |
| 715 | Antigens | 1 | 32 | 1406 | 1350 |
| 715 | Jurisprudence | 1 | 32 | 1502 | 1156 |
| 724 | Cochlear Implants | 4 | 31 | 67 | 121 |
| 724 | Cartography | 1 | 31 | 1046 | 570 |
| 724 | Social Stratification | 2 | 31 | 103 | 159 |
| 724 | health services accessibility | 3 | 31 | 904 | 1425 |
| 724 | Geodesy | 1 | 31 | 1342 | 1145 |
| 724 | Medical Ethics | 3 | 31 | 1129 | 1460 |
| 724 | Social mobility | 2 | 31 | 103 | 159 |
| 724 | Wetland ecology | 1 | 31 | 881 | 778 |
| 724 | Wetland conservation | 1 | 31 | 644 | 587 |
| 724 | social conflict | 2 | 31 | 283 | 298 |
| 724 | atmospheric models | 1 | 31 | 953 | 1046 |
| 724 | chronic disease | 1 | 31 | 591 | 571 |
| 724 | social status | 2 | 31 | 103 | 159 |
| 724 | Occupational mobility | 2 | 31 | 103 | 159 |
| 724 | Wetlands | 1 | 31 | 658 | 589 |
| 739 | Ethnic relations | 1 | 30 | 1036 | 647 |
| 739 | Electrophoresis | 1 | 30 | 2529 | 2506 |
| 739 | Ethnic Conflict | 1 | 30 | 462 | 434 |
| 739 | Diagnostic Imaging | 2 | 30 | 2610 | 2881 |
| 739 | Chromatography | 1 | 30 | 2595 | 2404 |
| 739 | Groundwater | 2 | 30 | 875 | 1054 |
| 739 | forced migration | 1 | 30 | 462 | 434 |
| 739 | Chromatographic analysis | 1 | 30 | 2947 | 2580 |
| 747 | Ethics | 2 | 29 | 1183 | 1290 |
| 747 | International Relations | 1 | 29 | 1858 | 1091 |
| 747 | Rural Development | 2 | 29 | 715 | 837 |
| 747 | Urban Geography | 1 | 29 | 405 | 365 |
| 747 | biological factors | 5 | 29 | 1586 | 2901 |
| 747 | Vision | 1 | 29 | 986 | 1044 |
| 753 | Industrial Design | 5 | 28 | 166 | 490 |
| 753 | Environmental Microbiology | 1 | 28 | 2234 | 2563 |
| 753 | Geomagnetism | 1 | 28 | 899 | 904 |
| 753 | Hemodynamics | 1 | 28 | 923 | 1155 |
| 753 | Cognitive Radio Networks | 2 | 28 | 275 | 354 |
| 753 | Biological Systems | 1 | 28 | 1457 | 1226 |
| 753 | Environmental Geochemistry | 3 | 28 | 506 | 1061 |
| 753 | Entrepreneurship | 1 | 28 | 1631 | 1636 |
| 753 | Instructional materials | 1 | 28 | 125 | 105 |
| 762 | Software Engineering | 2 | 27 | 1413 | 1488 |
| 762 | Educational Psychology | 3 | 27 | 1343 | 1880 |
| 762 | Fishery management | 1 | 27 | 1345 | 1219 |
| 762 | technology transfer | 1 | 27 | 528 | 570 |
| 762 | elder abuse | 3 | 27 | 283 | 584 |
| 762 | Sound | 4 | 27 | 905 | 1414 |
| 762 | Work | 2 | 27 | 456 | 511 |
| 762 | family violence | 3 | 27 | 396 | 775 |
| 770 | Geotechnical Engineering | 3 | 26 | 709 | 995 |
| 770 | Petroleum Engineering | 2 | 26 | 971 | 1204 |
| 770 | Audiology | 4 | 26 | 629 | 1096 |
| 770 | Computational Chemistry | 1 | 26 | 1113 | 1097 |
| 770 | Psychoneuroimmunology | 1 | 26 | 999 | 1351 |
| 770 | Food Microbiology | 1 | 26 | 1992 | 2381 |
| 770 | Environmental Chemistry | 1 | 26 | 3371 | 3487 |
| 770 | Restoration Ecology | 1 | 26 | 816 | 825 |
| 770 | food technology | 1 | 26 | 3637 | 3832 |
| 770 | Neuroimmunology | 1 | 26 | 1093 | 1458 |
| 770 | pollutants | 2 | 26 | 2299 | 3220 |
| 770 | Humanitarian Assistance | 1 | 26 | 71 | 37 |
| 770 | curriculum | 2 | 26 | 95 | 122 |
| 770 | curriculum planning | 2 | 26 | 204 | 236 |
| 770 | Social problems | 1 | 26 | 979 | 996 |
| 770 | Human Resources | 1 | 26 | 786 | 983 |
| 770 | impact | 1 | 26 | 534 | 647 |
| 787 | Environmental Psychology | 1 | 25 | 640 | 826 |
| 787 | behavioral medicine | 5 | 25 | 960 | 2507 |
| 787 | Feasibility studies | 2 | 25 | 367 | 336 |
| 787 | Industrial Policy | 2 | 25 | 606 | 806 |
| 787 | Capitalism | 2 | 25 | 230 | 305 |
| 787 | Scanning electron microscopy | 1 | 25 | 376 | 292 |
| 793 | Religious Education | 2 | 24 | 171 | 123 |
| 793 | Intelligent Transportation Systems | 3 | 24 | 1143 | 1826 |
| 793 | Technology Assessment | 1 | 24 | 710 | 979 |
| 793 | Oncogenes | 1 | 24 | 1649 | 2215 |
| 793 | Cost effectiveness | 1 | 24 | 171 | 174 |
| 798 | Criminology | 2 | 23 | 1049 | 1145 |
| 798 | Phonetics | 3 | 23 | 313 | 518 |
| 798 | Photogrammetry | 2 | 23 | 1119 | 763 |
| 798 | Socioeconomic Factors | 1 | 23 | 1416 | 1657 |
| 798 | Technological Innovations | 1 | 23 | 1835 | 1797 |
| 798 | Ceramic materials | 2 | 23 | 1627 | 2029 |
| 798 | Building | 2 | 23 | 934 | 1076 |
| 798 | Scandinavia | 2 | 23 | 891 | 1263 |
| 798 | Atomic spectroscopy | 2 | 23 | 1390 | 1647 |
| 798 | disaster relief | 1 | 23 | 456 | 492 |
| 808 | Philosophy | 12 | 22 | 876 | 1224 |
| 808 | Water quality | 1 | 22 | 511 | 548 |
| 808 | Drug delivery systems | 2 | 22 | 1906 | 2817 |
| 808 | Wildlife management | 1 | 22 | 1008 | 932 |
| 808 | Plastics | 2 | 22 | 2073 | 2478 |
| 808 | Medical innovations | 1 | 22 | 1731 | 2513 |
| 808 | families | 2 | 22 | 1048 | 1224 |
| 808 | biomimicry | 1 | 22 | 280 | 369 |
| 808 | Bacterial diseases | 1 | 22 | 574 | 690 |
| 817 | Civil Engineering | 4 | 21 | 1720 | 2262 |
| 817 | Embedded Systems | 1 | 21 | 376 | 339 |
| 817 | Cardiovascular Pharmacology | 1 | 21 | 578 | 691 |
| 817 | Landscape Ecology | 1 | 21 | 776 | 1029 |
| 817 | Ceramics | 1 | 21 | 2355 | 2155 |
| 817 | Animal health | 1 | 21 | 769 | 650 |
| 817 | Cognitive Behavioral Therapy | 1 | 21 | 404 | 476 |
| 817 | drug resistance | 2 | 21 | 966 | 1633 |
| 817 | Computational Complexity | 1 | 21 | 1800 | 1530 |
| 817 | cell adhesion molecules | 1 | 21 | 1002 | 1291 |
| 817 | cytokines | 1 | 21 | 2199 | 2599 |
| 817 | Roads | 2 | 21 | 902 | 980 |
| 817 | radar | 1 | 21 | 406 | 380 |
| 817 | Reading | 1 | 21 | 850 | 851 |
| 817 | Prisons | 2 | 21 | 389 | 447 |
| 817 | cell interaction | 1 | 21 | 1929 | 2277 |
| 817 | drug control | 1 | 21 | 641 | 759 |
| 817 | Cell communication | 1 | 21 | 1436 | 1767 |
| 835 | Database Management | 1 | 20 | 1310 | 1314 |
| 835 | Contraception | 1 | 20 | 980 | 1192 |
| 835 | Leadership | 2 | 20 | 618 | 1038 |
| 835 | Plant tissue culture | 1 | 20 | 1190 | 1366 |
| 835 | International Education | 1 | 20 | 473 | 481 |
| 835 | Magnetism | 1 | 20 | 391 | 183 |
| 835 | research and development | 2 | 20 | 453 | 797 |
| 835 | Plant cell culture | 1 | 20 | 1096 | 1352 |
| 843 | Bioenergetics | 1 | 19 | 1316 | 1632 |
| 843 | Telecommunications | 2 | 19 | 1060 | 1255 |
| 843 | Engineering Ethics | 1 | 19 | 390 | 480 |
| 843 | Number Theory | 3 | 19 | 824 | 879 |
| 843 | Energy metabolism | 1 | 19 | 896 | 1081 |
| 843 | Paleobiogeography | 1 | 19 | 161 | 150 |
| 843 | Leukemia | 2 | 19 | 1203 | 1853 |
| 843 | Professional ethics | 1 | 19 | 546 | 657 |
| 843 | Parturition | 1 | 19 | 17 | 7 |
| 843 | nuclear magnetic resonance spectroscopy | 2 | 19 | 919 | 1114 |
| 843 | Sulfur | 2 | 19 | 130 | 161 |
| 843 | Biometrics | 1 | 19 | 1595 | 1596 |
| 843 | cell membrane | 1 | 19 | 856 | 1051 |
| 843 | Classification | 1 | 19 | 554 | 463 |
| 843 | Personality Assessment | 1 | 19 | 840 | 1038 |
| 858 | Energy Conversion | 2 | 18 | 1469 | 2110 |
| 858 | Energy Storage | 2 | 18 | 1546 | 2035 |
| 858 | Analytical Biochemistry | 1 | 18 | 2775 | 3056 |
| 858 | physical therapy techniques | 3 | 18 | 130 | 245 |
| 858 | preventive medicine | 1 | 18 | 2074 | 2421 |
| 858 | Urban Transportation | 2 | 18 | 242 | 394 |
| 858 | Geriatric Oncology | 1 | 18 | 975 | 1282 |
| 858 | fuel cells | 2 | 18 | 1515 | 2089 |
| 858 | Molecules | 1 | 18 | 2096 | 1944 |
| 858 | protein | 1 | 18 | 1947 | 2065 |
| 858 | reasoning | 1 | 18 | 730 | 724 |
| 858 | Futures | 1 | 18 | 558 | 574 |
| 858 | Synapses | 1 | 18 | 488 | 643 |
| 858 | Molecular structure | 3 | 18 | 2477 | 3637 |
| 858 | Fuzzy systems | 2 | 18 | 2053 | 2341 |
| 858 | Vaccines | 2 | 18 | 2335 | 3472 |
| 858 | proteins | 1 | 18 | 3202 | 3411 |
| 875 | Robotics | 1 | 17 | 2617 | 2696 |
| 875 | Econometrics | 3 | 17 | 1384 | 1844 |
| 875 | Plant Taxonomy | 3 | 17 | 426 | 740 |
| 875 | Electromagnetic compatibility | 1 | 17 | 713 | 746 |
| 875 | Biodegradation | 1 | 17 | 1347 | 1745 |
| 875 | Biogeochemistry | 2 | 17 | 1303 | 2158 |
| 875 | Infrared spectroscopy | 1 | 17 | 680 | 836 |
| 875 | Cardiopulmonary Resuscitation | 1 | 17 | 288 | 218 |
| 875 | breastfeeding | 2 | 17 | 639 | 1062 |
| 875 | cardiac arrest | 1 | 17 | 288 | 218 |
| 875 | glycoproteins | 1 | 17 | 812 | 1065 |
| 875 | Glycoconjugates | 1 | 17 | 812 | 1065 |
| 875 | Oligosaccharides | 1 | 17 | 494 | 666 |
| 875 | biological agents | 2 | 17 | 910 | 733 |
| 875 | glycolipids | 1 | 17 | 812 | 1065 |
| 890 | Mathematics Education | 2 | 16 | 551 | 655 |
| 890 | Geomorphology | 1 | 16 | 1938 | 2355 |
| 890 | Cosmology | 6 | 16 | 1018 | 1617 |
| 890 | Reproductive health | 2 | 16 | 1012 | 1720 |
| 890 | Smart Materials | 2 | 16 | 1016 | 1512 |
| 890 | Corporate Social Responsibility | 1 | 16 | 583 | 899 |
| 890 | environmental auditing | 1 | 16 | 602 | 913 |
| 890 | Public Choice | 1 | 16 | 558 | 631 |
| 890 | Group decision making | 1 | 16 | 769 | 854 |
| 890 | Parkinson's disease | 1 | 16 | 433 | 633 |
| 890 | Microstructure | 1 | 16 | 1517 | 1442 |
| 901 | Law | 1 | 15 | 2357 | 1396 |
| 901 | Marine Engineering | 1 | 15 | 562 | 417 |
| 901 | Aerospace Engineering | 3 | 15 | 430 | 682 |
| 901 | Photography | 4 | 15 | 2274 | 1865 |
| 901 | Crime prevention | 1 | 15 | 545 | 463 |
| 901 | Pediatric Neurology | 2 | 15 | 1144 | 2045 |
| 901 | Naval Architecture | 1 | 15 | 604 | 611 |
| 901 | epilepsy | 1 | 15 | 1499 | 1853 |
| 901 | Common Law | 2 | 15 | 124 | 127 |
| 901 | Cardiac rehabilitation | 1 | 15 | 143 | 235 |
| 901 | corrections | 1 | 15 | 310 | 319 |
| 901 | plankton | 2 | 15 | 278 | 525 |
| 901 | Student Health Services | 2 | 15 | 329 | 587 |
| 901 | Acarology | 2 | 15 | 386 | 695 |
| 901 | sexual behavior | 1 | 15 | 1117 | 1333 |
| 901 | Mites | 2 | 15 | 557 | 818 |
| 901 | Ticks | 2 | 15 | 417 | 711 |
| 901 | Acari | 2 | 15 | 371 | 690 |
| 901 | brain diseases | 1 | 15 | 32 | 66 |
| 920 | Humanities | 3 | 14 | 2040 | 2603 |
| 920 | Disability Studies | 2 | 14 | 383 | 570 |
| 920 | Oxidative stress | 1 | 14 | 1943 | 2708 |
| 920 | Cellular senescence | 1 | 14 | 1422 | 2063 |
| 920 | soil conservation | 2 | 14 | 1025 | 1688 |
| 920 | Social policy | 2 | 14 | 1292 | 1727 |
| 920 | Adaptive control systems | 1 | 14 | 1013 | 1077 |
| 920 | land degradation | 2 | 14 | 634 | 1237 |
| 920 | catalytic activity | 1 | 14 | 996 | 1245 |
| 920 | degradation | 2 | 14 | 634 | 1237 |
| 920 | children | 1 | 14 | 886 | 1000 |
| 931 | Cultural Studies | 1 | 13 | 332 | 382 |
| 931 | Serology | 1 | 13 | 990 | 1241 |
| 931 | Nanoelectronics | 1 | 13 | 1374 | 1405 |
| 931 | Religion | 1 | 13 | 1550 | 991 |
| 931 | micromechanics | 1 | 13 | 905 | 1139 |
| 931 | Legislative Power | 1 | 13 | 139 | 149 |
| 931 | Religion and Culture | 1 | 13 | 627 | 576 |
| 931 | Religion and Psychology | 1 | 13 | 982 | 1064 |
| 931 | Interfaces | 3 | 13 | 310 | 752 |
| 931 | Radioisotopes | 4 | 13 | 1032 | 1979 |
| 931 | Enzyme | 1 | 13 | 880 | 1341 |
| 931 | Statistical models | 1 | 13 | 221 | 265 |
| 931 | Development | 1 | 13 | 1373 | 1787 |
| 931 | Culture | 1 | 13 | 1831 | 1621 |
| 931 | Semiconductor industry | 1 | 13 | 1095 | 1200 |
| 931 | Economic Assistance | 1 | 13 | 1217 | 1610 |
| 947 | Data Mining | 1 | 12 | 2826 | 3475 |
| 947 | Information Retrieval | 1 | 12 | 923 | 1097 |
| 947 | Quality Control | 1 | 12 | 3044 | 3589 |
| 947 | Immunogenetics | 1 | 12 | 1158 | 1468 |
| 947 | urban health | 1 | 12 | 490 | 754 |
| 947 | structural stability | 1 | 12 | 787 | 1000 |
| 947 | gene therapy | 1 | 12 | 1786 | 2434 |
| 947 | Water Microbiology | 1 | 12 | 953 | 1366 |
| 947 | mycoses | 1 | 12 | 1381 | 1851 |
| 947 | Latin America | 3 | 12 | 1329 | 1601 |
| 947 | Aviation | 1 | 12 | 205 | 220 |
| 947 | homosexuality | 1 | 12 | 692 | 889 |
| 947 | Host-parasite interactions | 1 | 12 | 1885 | 2714 |
| 947 | tomography | 1 | 12 | 698 | 723 |
| 947 | Spain | 1 | 12 | 1315 | 867 |
| 962 | Industrial Engineering | 2 | 11 | 2355 | 3424 |
| 962 | Bryology | 3 | 11 | 216 | 388 |
| 962 | Morphology | 2 | 11 | 1035 | 1409 |
| 962 | Atmospheric Chemistry | 1 | 11 | 1276 | 1725 |
| 962 | Atmospheric Physics | 2 | 11 | 1742 | 2706 |
| 962 | Statistical Mechanics | 1 | 11 | 1778 | 1635 |
| 962 | Speech Perception | 1 | 11 | 609 | 836 |
| 962 | mutation | 1 | 11 | 1020 | 1433 |
| 962 | auditory perception | 1 | 11 | 726 | 950 |
| 962 | Chromosomes | 1 | 11 | 1542 | 2027 |
| 962 | World Wide Web | 2 | 11 | 605 | 885 |
| 973 | History | 1 | 10 | 1751 | 873 |
| 973 | Chronobiology | 2 | 10 | 657 | 1159 |
| 973 | Sustainable Engineering | 2 | 10 | 1966 | 3035 |
| 973 | Numerical Analysis | 5 | 10 | 1900 | 3380 |
| 973 | Neurovirology | 1 | 10 | 459 | 685 |
| 973 | Historiography | 1 | 10 | 349 | 266 |
| 973 | Homelessness | 1 | 10 | 109 | 136 |
| 973 | consumer behavior | 1 | 10 | 914 | 1283 |
| 973 | biological clocks | 2 | 10 | 657 | 1159 |
| 973 | Psychological Stress | 1 | 10 | 109 | 136 |
| 973 | Alternative Medicine | 2 | 10 | 2365 | 3922 |
| 973 | complementary therapies | 2 | 10 | 2598 | 4170 |
| 973 | Adhesion | 1 | 10 | 1182 | 1467 |
| 973 | Ornithology | 1 | 10 | 1471 | 1596 |
| 973 | Ultrasonics | 2 | 10 | 1496 | 2621 |
| 973 | Calorimetry | 1 | 10 | 1900 | 2255 |
| 973 | bryophytes | 2 | 10 | 157 | 235 |
| 973 | circadian rhythm | 2 | 10 | 657 | 1159 |
| 973 | adhesives | 1 | 10 | 1255 | 1499 |
| 973 | Brain damage | 2 | 10 | 514 | 1052 |
| 973 | Thermal analysis | 1 | 10 | 1900 | 2255 |
| 994 | Occupational Health | 2 | 9 | 1358 | 2190 |
| 994 | Asthma | 1 | 9 | 1206 | 1590 |
| 994 | Nonparametric Statistics | 1 | 9 | 344 | 356 |
| 994 | Total Quality Management | 1 | 9 | 1072 | 1395 |
| 994 | Erectile dysfunction | 1 | 9 | 485 | 660 |
| 994 | industrial hygiene | 2 | 9 | 1436 | 2156 |
| 994 | Circadian rhythms | 1 | 9 | 698 | 1033 |