| 1 | Biochemistry | 522 | 17.2K | 806 | 911 |
| 2 | Physics | 451 | 15.8K | 960 | 1561 |
| 3 | Science | 354 | 12.1K | 959 | 1802 |
| 4 | Medicine | 389 | 11.1K | 962 | 1350 |
| 5 | Biotechnology | 261 | 10.4K | 480 | 594 |
| 6 | Public Health | 670 | 10.0K | 149 | 420 |
| 7 | Condensed Matter | 302 | 9.8K | 423 | 426 |
| 8 | Solid State Physics | 301 | 9.7K | 445 | 421 |
| 9 | Biology | 380 | 9.1K | 893 | 2057 |
| 10 | Botany | 288 | 8.7K | 301 | 463 |
| 11 | Pharmacology | 279 | 8.7K | 522 | 557 |
| 12 | Toxicology | 212 | 8.1K | 395 | 372 |
| 13 | Chemistry | 245 | 7.3K | 1476 | 1773 |
| 14 | Molecular Biology | 233 | 6.3K | 1111 | 1694 |
| 15 | Chemical Engineering | 204 | 6.1K | 479 | 618 |
| 16 | Psychiatry | 65 | 6.1K | 1171 | 663 |
| 17 | Research | 184 | 5.8K | 1314 | 1403 |
| 18 | Statistical physics | 255 | 5.8K | 363 | 428 |
| 19 | Colloids | 88 | 5.2K | 703 | 469 |
| 20 | Environment | 67 | 5.0K | 1112 | 1050 |
| 21 | Catalysis | 120 | 4.9K | 658 | 665 |
| 22 | Microbiology | 187 | 4.8K | 937 | 1481 |
| 23 | Biophysics | 90 | 4.7K | 1441 | 960 |
| 24 | food technology | 118 | 4.6K | 204 | 180 |
| 25 | Biochemical Engineering | 103 | 4.6K | 386 | 639 |
| 26 | Materials | 126 | 4.5K | 1225 | 1185 |
| 27 | environmental pollution | 95 | 4.4K | 682 | 639 |
| 28 | Bioengineering | 92 | 4.3K | 679 | 817 |
| 29 | Pharmacognosy | 122 | 4.1K | 89 | 105 |
| 30 | Mental Disorders | 24 | 4.0K | 1404 | 552 |
| 31 | Biomass Energy | 66 | 4.0K | 341 | 295 |
| 32 | Tropical Medicine | 197 | 3.9K | 35 | 53 |
| 33 | Mental illness | 23 | 3.9K | 853 | 328 |
| 34 | Nonlinear Dynamics | 140 | 3.9K | 220 | 243 |
| 35 | Plant physiology | 96 | 3.7K | 238 | 352 |
| 36 | Mathematics | 252 | 3.5K | 748 | 668 |
| 37 | Food | 87 | 3.3K | 383 | 366 |
| 38 | Ecology | 133 | 3.2K | 1016 | 1640 |
| 39 | Medicinal plants | 69 | 3.2K | 105 | 81 |
| 40 | Plant Ecology | 49 | 3.1K | 334 | 262 |
| 41 | Marine Biology | 237 | 3.1K | 132 | 423 |
| 42 | Neurology | 102 | 2.9K | 1326 | 1693 |
| 43 | Radiation effects | 26 | 2.8K | 65 | 14 |
| 44 | Raman spectroscopy | 133 | 2.8K | 9 | 12 |
| 45 | Nuclear Physics | 163 | 2.8K | 966 | 1170 |
| 46 | Materials Science | 41 | 2.8K | 1675 | 1088 |
| 47 | Natural history | 90 | 2.7K | 664 | 2513 |
| 48 | Surface Chemistry | 70 | 2.7K | 867 | 757 |
| 49 | Pollution | 104 | 2.5K | 936 | 1563 |
| 50 | Food additives | 20 | 2.4K | 374 | 121 |
| 50 | hydrocolloids | 20 | 2.4K | 177 | 93 |
| 52 | Nanotechnology | 67 | 2.3K | 1338 | 1461 |
| 53 | Health Policy | 175 | 2.3K | 124 | 307 |
| 54 | Spectrum analysis | 160 | 2.3K | 635 | 1206 |
| 55 | Environmental Health | 91 | 2.2K | 925 | 1411 |
| 56 | Water pollution | 97 | 2.2K | 281 | 603 |
| 57 | Pharmaceutical Chemistry | 69 | 2.2K | 914 | 984 |
| 58 | enzymes | 35 | 2.1K | 322 | 174 |
| 59 | Nutrition | 86 | 2.1K | 807 | 1118 |
| 60 | Nanostructured Materials | 42 | 2.1K | 1023 | 808 |
| 61 | Epidemiology | 139 | 2.0K | 437 | 902 |
| 62 | Biomedical Engineering | 80 | 2.0K | 931 | 1089 |
| 63 | Public Health Administration | 170 | 2.0K | 16 | 22 |
| 64 | venom | 59 | 1.9K | 48 | 43 |
| 64 | Toxins | 60 | 1.9K | 51 | 45 |
| 66 | biological factors | 62 | 1.9K | 185 | 257 |
| 67 | Technology | 59 | 1.8K | 911 | 746 |
| 68 | Nursing | 206 | 1.8K | 45 | 139 |
| 69 | Polymers | 57 | 1.8K | 1399 | 1224 |
| 70 | Mathematical Physics | 118 | 1.8K | 387 | 540 |
| 71 | Environmental Management | 36 | 1.8K | 716 | 675 |
| 72 | Psychophysiology | 41 | 1.7K | 970 | 935 |
| 73 | Parasitology | 62 | 1.6K | 445 | 436 |
| 74 | Physiology | 84 | 1.6K | 921 | 1384 |
| 75 | Electrochemistry | 64 | 1.6K | 1049 | 994 |
| 76 | Solid State Chemistry | 74 | 1.6K | 386 | 397 |
| 77 | Bacteriology | 62 | 1.6K | 366 | 657 |
| 78 | natural products | 78 | 1.6K | 133 | 232 |
| 79 | coal | 38 | 1.5K | 311 | 336 |
| 80 | polymerization | 46 | 1.5K | 1301 | 1121 |
| 81 | Earth Sciences | 116 | 1.4K | 378 | 880 |
| 82 | Hydrology | 75 | 1.4K | 376 | 584 |
| 83 | Pharmacy | 37 | 1.4K | 578 | 443 |
| 84 | Marine Pollution | 54 | 1.4K | 95 | 224 |
| 85 | Latin America | 146 | 1.4K | 75 | 49 |
| 86 | Inflammation | 47 | 1.3K | 121 | 220 |
| 87 | Agriculture | 115 | 1.3K | 183 | 480 |
| 88 | Infrared spectroscopy | 73 | 1.3K | 2 | 6 |
| 89 | Behavior | 29 | 1.3K | 1172 | 1160 |
| 90 | Geology | 99 | 1.3K | 607 | 920 |
| 91 | Analytical Chemistry | 42 | 1.3K | 1572 | 1493 |
| 92 | Herbal medicine | 27 | 1.3K | 93 | 69 |
| 93 | Molecular structure | 68 | 1.3K | 312 | 653 |
| 94 | Surface-Active Agents | 17 | 1.2K | 292 | 158 |
| 94 | Surface properties | 17 | 1.2K | 327 | 179 |
| 96 | Renewable Energy Sources | 29 | 1.2K | 684 | 1086 |
| 97 | Immunology | 47 | 1.2K | 1336 | 1854 |
| 98 | Clinical Chemistry | 30 | 1.2K | 1112 | 1063 |
| 99 | Geomorphology | 56 | 1.1K | 175 | 396 |
| 100 | Aquaculture | 47 | 1.1K | 296 | 355 |
| 101 | Adsorption | 49 | 1.1K | 3 | 4 |
| 102 | Environmental monitoring | 58 | 1.1K | 725 | 1435 |
| 103 | Quantum Gravity | 48 | 1.1K | 816 | 887 |
| 104 | Organic Chemistry | 52 | 1.1K | 909 | 1102 |
| 105 | Medical Microbiology | 45 | 1.1K | 641 | 1085 |
| 106 | Crystallography | 24 | 1.1K | 633 | 223 |
| 107 | Environmental Engineering | 92 | 1.1K | 471 | 1375 |
| 108 | Psychology | 130 | 1.1K | 698 | 1646 |
| 109 | Neurophysiology | 36 | 1.1K | 1096 | 1417 |
| 110 | Graphene | 1 | 1.0K | 299 | 17 |
| 111 | Enzyme | 15 | 1.0K | 119 | 65 |
| 112 | Water quality management | 39 | 1.0K | 288 | 288 |
| 113 | Agricultural Chemistry | 26 | 1.0K | 816 | 699 |
| 114 | Cytology | 32 | 997 | 1873 | 2491 |
| 115 | plant oils | 74 | 994 | 8 | 8 |
| 116 | Brain | 21 | 982 | 1343 | 1190 |
| 117 | miniaturization | 27 | 976 | 584 | 818 |
| 118 | Reproduction | 57 | 975 | 530 | 809 |
| 119 | Environmental Policy | 34 | 974 | 911 | 1316 |
| 120 | Plants | 35 | 968 | 593 | 871 |
| 121 | Building Materials | 27 | 961 | 483 | 599 |
| 122 | environmental protection | 50 | 958 | 670 | 1204 |
| 123 | Carbon | 23 | 956 | 423 | 523 |
| 124 | Geography | 149 | 946 | 172 | 639 |
| 125 | Neuropsychology | 19 | 940 | 1106 | 826 |
| 126 | Zeolites | 21 | 937 | 245 | 208 |
| 127 | Geriatrics | 15 | 908 | 1728 | 1002 |
| 128 | Antarctica | 48 | 902 | 65 | 53 |
| 129 | Biocompatible Materials | 24 | 898 | 1704 | 1945 |
| 130 | Cell Biology | 26 | 884 | 1986 | 2681 |
| 131 | Ethnology | 38 | 881 | 267 | 177 |
| 132 | Green Chemistry | 9 | 878 | 1156 | 762 |
| 133 | Industrial Microbiology | 22 | 877 | 649 | 715 |
| 134 | Mycology | 40 | 868 | 370 | 555 |
| 135 | Bioorganic chemistry | 25 | 860 | 1167 | 1126 |
| 136 | Neural circuitry | 26 | 852 | 519 | 571 |
| 137 | Biodiversity | 56 | 848 | 368 | 854 |
| 138 | Alternative Medicine | 34 | 846 | 368 | 348 |
| 139 | proteins | 30 | 813 | 704 | 782 |
| 140 | drugs | 20 | 800 | 926 | 692 |
| 141 | Neurochemistry | 29 | 799 | 964 | 1181 |
| 142 | Aging | 7 | 777 | 2535 | 1165 |
| 143 | Engineering | 10 | 775 | 3156 | 1111 |
| 144 | Biodiversity conservation | 15 | 766 | 865 | 1101 |
| 145 | Developmental Biology | 5 | 757 | 2056 | 1211 |
| 146 | Genomics | 25 | 754 | 1365 | 1514 |
| 147 | bees | 13 | 747 | 136 | 86 |
| 148 | Aquatic ecology | 16 | 745 | 342 | 204 |
| 149 | Environmental Microbiology | 35 | 740 | 266 | 657 |
| 150 | Power Electronics | 7 | 726 | 427 | 103 |
| 151 | Ultrasonics | 9 | 712 | 610 | 308 |
| 151 | Sonochemistry | 9 | 712 | 255 | 175 |
| 153 | Parasitic Diseases | 21 | 706 | 863 | 889 |
| 154 | Clinical Pharmacology | 29 | 700 | 429 | 501 |
| 155 | Animal breeding | 40 | 698 | 157 | 200 |
| 156 | Soil Science | 29 | 697 | 547 | 723 |
| 156 | Bipolar Disorder | 7 | 697 | 264 | 151 |
| 156 | Optical materials | 26 | 697 | 1022 | 1300 |
| 159 | Optics | 50 | 692 | 1514 | 1643 |
| 160 | Breeding | 37 | 678 | 287 | 449 |
| 161 | health behavior | 5 | 677 | 915 | 304 |
| 161 | complementary therapies | 27 | 677 | 499 | 459 |
| 163 | cytokines | 21 | 635 | 402 | 499 |
| 164 | Energy Policy | 14 | 632 | 1340 | 1375 |
| 165 | Molecular Spectroscopy | 59 | 627 | 197 | 496 |
| 166 | soil conservation | 22 | 617 | 130 | 156 |
| 167 | Water | 26 | 616 | 903 | 1446 |
| 168 | Electrical Engineering | 46 | 613 | 1003 | 734 |
| 169 | Oceanography | 33 | 603 | 642 | 909 |
| 170 | Artificial Intelligence | 34 | 595 | 1231 | 1490 |
| 171 | mathematical analysis | 68 | 592 | 490 | 683 |
| 172 | Entomology | 36 | 583 | 731 | 773 |
| 173 | Pharmaceutical Technology | 14 | 582 | 754 | 611 |
| 174 | energy conservation | 9 | 579 | 1195 | 909 |
| 175 | Operations Research | 32 | 575 | 696 | 889 |
| 176 | Pharmacokinetics | 11 | 566 | 434 | 286 |
| 177 | Immunopharmacology | 17 | 565 | 327 | 299 |
| 178 | Endocrinology | 35 | 563 | 1186 | 2106 |
| 178 | Telecommunication Systems | 19 | 563 | 519 | 339 |
| 178 | Plant cells | 13 | 563 | 664 | 983 |
| 181 | Metallography | 15 | 560 | 280 | 196 |
| 182 | Metabolism | 34 | 546 | 1128 | 1961 |
| 182 | Microbial Ecology | 16 | 546 | 1176 | 1575 |
| 184 | Health Education | 56 | 545 | 334 | 689 |
| 184 | Schizophrenia | 9 | 545 | 781 | 624 |
| 186 | Education | 196 | 544 | 310 | 1168 |
| 187 | Geophysics | 20 | 540 | 1900 | 1952 |
| 188 | Microelectronics | 21 | 538 | 764 | 1004 |
| 188 | Microscopy | 24 | 538 | 480 | 478 |
| 190 | Environmental Toxicology | 27 | 537 | 747 | 1341 |
| 190 | computer networks | 27 | 537 | 716 | 826 |
| 192 | mycoses | 24 | 521 | 170 | 590 |
| 193 | Industrial Engineering | 21 | 518 | 651 | 708 |
| 194 | soil microbiology | 13 | 511 | 758 | 993 |
| 195 | Composite Materials | 14 | 485 | 1451 | 1536 |
| 196 | Bioinorganic chemistry | 23 | 482 | 485 | 597 |
| 197 | Proteomics | 12 | 474 | 574 | 635 |
| 197 | Psychosomatic Medicine | 9 | 474 | 536 | 463 |
| 199 | Climate change | 4 | 471 | 1090 | 1152 |
| 199 | Eutrophication | 4 | 471 | 1055 | 1148 |
| 201 | nanoscience | 9 | 470 | 2096 | 1814 |
| 202 | Automation | 22 | 469 | 649 | 799 |
| 202 | Economic History | 321 | 469 | 82 | 1227 |
| 202 | Nanoparticles | 15 | 469 | 891 | 936 |
| 205 | Animal Behavior | 26 | 464 | 696 | 1240 |
| 206 | Immunotherapy | 16 | 455 | 930 | 1349 |
| 206 | particles | 13 | 455 | 339 | 224 |
| 208 | Plant diseases | 32 | 453 | 621 | 889 |
| 209 | Parasites | 11 | 443 | 960 | 675 |
| 210 | Evidence-Based Medicine | 20 | 440 | 366 | 336 |
| 210 | Granular materials | 12 | 440 | 160 | 124 |
| 212 | drug therapy | 9 | 439 | 1858 | 1479 |
| 213 | Oxidative stress | 12 | 438 | 538 | 695 |
| 214 | Cellular senescence | 11 | 435 | 305 | 353 |
| 215 | Cellulose | 12 | 433 | 212 | 229 |
| 216 | Genetic engineering | 4 | 425 | 2445 | 1442 |
| 217 | ecosystem | 25 | 420 | 406 | 907 |
| 218 | Nervous system | 19 | 419 | 1199 | 1839 |
| 219 | Neurosurgery | 2 | 418 | 1795 | 659 |
| 220 | Quality Control | 13 | 415 | 791 | 720 |
| 221 | Climatology | 55 | 409 | 377 | 1069 |
| 221 | Communication | 73 | 409 | 269 | 778 |
| 223 | Ethology | 18 | 406 | 675 | 1146 |
| 224 | Highway Engineering | 23 | 400 | 76 | 100 |
| 224 | human behavior | 16 | 400 | 1169 | 1890 |
| 226 | Obstetrics | 26 | 398 | 1111 | 1461 |
| 227 | Fisheries | 22 | 393 | 662 | 892 |
| 228 | soil pollution | 15 | 392 | 100 | 116 |
| 229 | Marine Ecology | 22 | 390 | 211 | 279 |
| 230 | United States | 33 | 387 | 1878 | 2764 |
| 231 | Medical Anthropology | 9 | 383 | 803 | 905 |
| 231 | Water Microbiology | 26 | 383 | 30 | 133 |
| 231 | disease vectors | 5 | 383 | 875 | 455 |
| 234 | Zoology | 40 | 381 | 794 | 1232 |
| 235 | Coastal zone management | 12 | 380 | 250 | 244 |
| 235 | Communication in medicine | 37 | 380 | 80 | 212 |
| 237 | Diet | 10 | 379 | 1503 | 1612 |
| 238 | Marine resources | 11 | 376 | 280 | 238 |
| 239 | Geometry | 51 | 370 | 158 | 252 |
| 239 | Measurement | 14 | 370 | 498 | 448 |
| 241 | Crystal growth | 18 | 367 | 350 | 460 |
| 242 | Phytotherapy | 11 | 364 | 354 | 318 |
| 243 | Drying | 4 | 362 | 351 | 119 |
| 244 | plant molecular biology | 10 | 360 | 963 | 1294 |
| 245 | Molecular Genetics | 23 | 355 | 827 | 1481 |
| 246 | Geochemistry | 18 | 352 | 1045 | 1372 |
| 246 | plant communities | 11 | 352 | 624 | 815 |
| 248 | Biodegradation | 26 | 349 | 61 | 319 |
| 248 | Soft Condensed Matter | 10 | 349 | 681 | 616 |
| 248 | Therapeutics | 6 | 349 | 1672 | 1410 |
| 251 | food handling | 7 | 344 | 554 | 474 |
| 251 | United Kingdom | 6 | 344 | 1475 | 1169 |
| 253 | Agricultural Ecology | 9 | 342 | 667 | 822 |
| 253 | Transportation | 27 | 342 | 509 | 876 |
| 255 | Physical Therapy | 26 | 339 | 406 | 885 |
| 255 | Statistical Mechanics | 14 | 339 | 544 | 349 |
| 255 | Chromatographic analysis | 24 | 339 | 629 | 837 |
| 258 | Genetics | 28 | 338 | 1726 | 3536 |
| 259 | Signal Processing | 26 | 337 | 577 | 840 |
| 260 | Economics | 96 | 336 | 820 | 2087 |
| 261 | Digestive system diseases | 17 | 333 | 432 | 589 |
| 262 | Computer Engineering | 13 | 332 | 206 | 139 |
| 263 | Nanostructures | 28 | 330 | 601 | 1446 |
| 264 | Sociology | 31 | 329 | 902 | 1649 |
| 264 | Cancer | 19 | 329 | 2070 | 3022 |
| 266 | Proteome | 8 | 328 | 873 | 921 |
| 267 | Fouling | 25 | 327 | 20 | 101 |
| 268 | Fishery resources | 94 | 323 | 10 | 323 |
| 269 | Kidney diseases | 9 | 319 | 677 | 649 |
| 270 | actuators | 12 | 313 | 1253 | 1492 |
| 270 | software | 6 | 313 | 703 | 525 |
| 270 | transducers | 12 | 313 | 1253 | 1492 |
| 273 | Environmental Geology | 19 | 309 | 493 | 875 |
| 273 | Microbial Biotechnology | 13 | 309 | 310 | 447 |
| 273 | Plant tissue culture | 6 | 309 | 551 | 368 |
| 273 | Plant cell culture | 6 | 309 | 477 | 361 |
| 277 | Germany | 4 | 307 | 694 | 80 |
| 278 | Semiconductors | 22 | 302 | 763 | 939 |
| 279 | Critical Care | 7 | 298 | 1451 | 1653 |
| 279 | clay | 7 | 298 | 493 | 494 |
| 281 | Chromatography | 20 | 297 | 600 | 835 |
| 282 | Marine Geology | 9 | 293 | 330 | 300 |
| 282 | Petroleum Geology | 9 | 293 | 310 | 309 |
| 284 | Critical Care Medicine | 6 | 292 | 1471 | 1652 |
| 285 | vascular diseases | 8 | 291 | 519 | 645 |
| 286 | Dermatology | 14 | 290 | 1099 | 1255 |
| 287 | Electrochemical Analysis | 16 | 289 | 660 | 865 |
| 288 | Petroleum Engineering | 12 | 286 | 368 | 374 |
| 288 | Chronobiology | 15 | 286 | 90 | 174 |
| 288 | Clinical Psychology | 4 | 286 | 1587 | 1228 |
| 288 | biological clocks | 15 | 286 | 90 | 174 |
| 288 | circadian rhythm | 15 | 286 | 90 | 174 |
| 288 | biological rhythms | 15 | 286 | 83 | 171 |
| 288 | biological evolution | 10 | 286 | 1394 | 1869 |
| 295 | Nondestructive testing | 8 | 283 | 380 | 253 |
| 295 | arthritis | 4 | 283 | 1441 | 1232 |
| 297 | Sports Medicine | 53 | 282 | 586 | 1492 |
| 298 | Gastrointestinal diseases | 10 | 273 | 348 | 288 |
| 298 | Liver diseases | 10 | 273 | 1076 | 1581 |
| 300 | rehabilitation | 9 | 269 | 1592 | 1504 |
| 301 | nuclear magnetic resonance spectroscopy | 30 | 268 | 139 | 359 |
| 302 | Molecular evolution | 18 | 267 | 744 | 1357 |
| 303 | medical education | 14 | 265 | 984 | 1069 |
| 304 | Taste | 13 | 264 | 84 | 123 |
| 304 | smell | 13 | 264 | 84 | 123 |
| 306 | Magnetic Resonance Spectroscopy | 29 | 263 | 370 | 708 |
| 306 | NMR | 29 | 263 | 48 | 148 |
| 306 | magnetic resonance | 29 | 263 | 47 | 163 |
| 309 | Manufacturing Processes | 7 | 261 | 1813 | 1445 |
| 310 | Paleontology | 21 | 258 | 542 | 735 |
| 310 | global environmental change | 5 | 258 | 770 | 773 |
| 310 | flavor | 12 | 258 | 50 | 83 |
| 310 | biopolymers | 8 | 258 | 853 | 807 |
| 310 | environmental issues | 5 | 258 | 326 | 244 |
| 315 | Paleoclimatology | 6 | 255 | 908 | 822 |
| 316 | Virology | 7 | 254 | 2738 | 3438 |
| 317 | Agronomy | 2 | 253 | 795 | 431 |
| 317 | Land use | 10 | 253 | 589 | 738 |
| 317 | Roads | 16 | 253 | 338 | 346 |
| 320 | Paleoecology | 4 | 251 | 1049 | 771 |
| 320 | Paleogeography | 4 | 251 | 934 | 702 |
| 320 | Environmental pollutants | 12 | 251 | 1282 | 1760 |
| 323 | Anti-inflammatory agents | 11 | 249 | 53 | 87 |
| 323 | environmental exposure | 11 | 249 | 1079 | 1411 |
| 325 | Electronics | 20 | 248 | 1758 | 1991 |
| 326 | Respiration | 15 | 246 | 807 | 1299 |
| 327 | Solar Energy | 9 | 245 | 1077 | 1322 |
| 328 | Atomic spectroscopy | 7 | 242 | 890 | 642 |
| 329 | Plant hormones | 6 | 239 | 205 | 179 |
| 329 | Transport | 5 | 239 | 537 | 455 |
| 329 | Sea | 5 | 239 | 475 | 370 |
| 329 | internet | 11 | 239 | 561 | 621 |
| 333 | protein | 5 | 238 | 1245 | 975 |
| 334 | Cosmology | 31 | 237 | 439 | 702 |
| 335 | Nutrition physiology | 3 | 235 | 947 | 563 |
| 336 | Information Science | 45 | 230 | 438 | 1759 |
| 337 | sanitation | 4 | 229 | 1673 | 1809 |
| 337 | gene mapping | 6 | 229 | 1865 | 2044 |
| 339 | Molecular recognition | 13 | 226 | 26 | 88 |
| 340 | land degradation | 7 | 225 | 250 | 290 |
| 340 | degradation | 7 | 225 | 250 | 290 |
| 342 | Metallurgy | 16 | 223 | 1264 | 1632 |
| 343 | Veterinary Pathology | 17 | 222 | 91 | 137 |
| 344 | Functional foods | 6 | 219 | 225 | 202 |
| 345 | Soil ecology | 13 | 217 | 320 | 651 |
| 346 | Internet of Things | 7 | 216 | 433 | 329 |
| 346 | Environmental Chemistry | 7 | 216 | 1670 | 2028 |
| 348 | Physical Chemistry | 9 | 215 | 1639 | 1796 |
| 348 | pollutants | 10 | 215 | 1154 | 1671 |
| 350 | Contraception | 6 | 214 | 481 | 434 |
| 350 | Nonlinear functional analysis | 17 | 214 | 422 | 612 |
| 352 | Quantum Optics | 6 | 213 | 739 | 514 |
| 352 | Microwaves | 21 | 213 | 397 | 398 |
| 352 | Laser Spectroscopy | 6 | 213 | 683 | 465 |
| 355 | Chromosome mapping | 4 | 212 | 2093 | 1842 |
| 356 | Sleep Disorders | 26 | 211 | 662 | 1326 |
| 356 | Circadian rhythms | 5 | 211 | 203 | 209 |
| 356 | Sleep | 26 | 211 | 653 | 1334 |
| 359 | Functional Analysis | 23 | 210 | 436 | 695 |
| 359 | Drug design | 13 | 210 | 831 | 1414 |
| 361 | Metabolic syndrome | 15 | 209 | 37 | 76 |
| 362 | Numerical Analysis | 15 | 207 | 1170 | 1280 |
| 363 | Biomass | 7 | 206 | 359 | 611 |
| 364 | Wireless Communication Systems | 16 | 205 | 939 | 1072 |
| 365 | Medical Technology | 3 | 204 | 2411 | 1350 |
| 365 | Pediatrics | 9 | 204 | 2021 | 2651 |
| 367 | Wetland ecology | 6 | 202 | 289 | 259 |
| 368 | Telecommunication | 23 | 200 | 776 | 1164 |
| 369 | Vaccines | 8 | 195 | 1439 | 1643 |
| 370 | China | 13 | 194 | 1598 | 1989 |
| 371 | Metabolic diseases | 10 | 190 | 1823 | 2720 |
| 371 | Europe | 22 | 190 | 1433 | 2263 |
| 373 | Waste management | 17 | 185 | 481 | 862 |
| 373 | Water Purification | 17 | 185 | 357 | 675 |
| 373 | energy resources | 6 | 185 | 1065 | 1625 |
| 376 | Food Preservation | 16 | 184 | 211 | 327 |
| 376 | Analytical Biochemistry | 9 | 184 | 1162 | 1440 |
| 378 | Nanochemistry | 6 | 183 | 923 | 701 |
| 378 | biological agents | 37 | 183 | 46 | 69 |
| 380 | Histochemistry | 5 | 182 | 1020 | 839 |
| 381 | Oncology | 11 | 181 | 1486 | 2855 |
| 381 | cell adhesion molecules | 6 | 181 | 346 | 448 |
| 381 | cell interaction | 6 | 181 | 991 | 1172 |
| 381 | Cell communication | 6 | 181 | 618 | 754 |
| 385 | Image Processing | 11 | 180 | 1167 | 1629 |
| 385 | Heat Exchangers | 5 | 180 | 1021 | 1061 |
| 385 | Invertebrates | 9 | 180 | 336 | 419 |
| 388 | Luminescence | 8 | 175 | 886 | 793 |
| 389 | Electrophoresis | 9 | 172 | 1145 | 1429 |
| 390 | Reproductive health | 4 | 171 | 810 | 595 |
| 391 | Statistics | 15 | 170 | 1506 | 1863 |
| 391 | lasers | 16 | 170 | 826 | 1101 |
| 393 | infection | 7 | 169 | 1426 | 1779 |
| 393 | Birth control | 3 | 169 | 535 | 369 |
| 395 | Psychopharmacology | 8 | 168 | 1312 | 1769 |
| 396 | Diagnostic microbiology | 5 | 163 | 1358 | 1947 |
| 397 | Rheumatology | 3 | 161 | 1636 | 1358 |
| 397 | Computer Graphics | 16 | 161 | 720 | 1202 |
| 399 | Calorimetry | 10 | 160 | 596 | 661 |
| 399 | Plastics | 8 | 160 | 1195 | 1217 |
| 399 | wetland management | 4 | 160 | 132 | 108 |
| 399 | Thermal analysis | 10 | 160 | 596 | 661 |
| 403 | Anthropology | 17 | 159 | 764 | 1055 |
| 403 | Engineering Geology | 3 | 159 | 1618 | 1199 |
| 403 | Fishery management | 11 | 159 | 461 | 628 |
| 403 | peptides | 11 | 159 | 408 | 537 |
| 403 | Microorganisms | 1 | 159 | 2340 | 1534 |
| 408 | Neurotoxicology | 6 | 158 | 421 | 560 |
| 408 | pain | 6 | 158 | 1278 | 1528 |
| 410 | Intelligent Transportation Systems | 3 | 157 | 850 | 483 |
| 410 | Neurotransmitters | 1 | 157 | 1213 | 395 |
| 412 | Bioenergetics | 5 | 156 | 756 | 850 |
| 412 | Pesticides | 6 | 156 | 492 | 436 |
| 412 | Medical innovations | 1 | 156 | 2251 | 1862 |
| 412 | Mites | 19 | 156 | 110 | 197 |
| 416 | Cerebral cortex | 1 | 155 | 1680 | 1076 |
| 416 | Phylogeny | 2 | 155 | 1316 | 1013 |
| 418 | Bioremediation | 4 | 154 | 758 | 696 |
| 418 | vibration | 4 | 154 | 1269 | 913 |
| 418 | Mechanics | 4 | 154 | 1397 | 799 |
| 421 | Nephrology | 2 | 149 | 946 | 779 |
| 421 | histological techniques | 1 | 149 | 1468 | 898 |
| 423 | Process Control | 7 | 148 | 557 | 1022 |
| 423 | Infections | 6 | 148 | 1086 | 1581 |
| 425 | Sustainable Engineering | 5 | 147 | 1457 | 1622 |
| 426 | Biogeography | 8 | 146 | 693 | 1293 |
| 426 | Public Administration | 21 | 146 | 502 | 875 |
| 426 | Group decision making | 8 | 146 | 252 | 354 |
| 429 | Apoptosis | 5 | 145 | 178 | 228 |
| 429 | neurotoxins | 5 | 145 | 178 | 228 |
| 429 | Neurotoxic agents | 5 | 145 | 178 | 228 |
| 429 | Sports | 22 | 145 | 857 | 1516 |
| 429 | Nerve regeneration | 5 | 145 | 178 | 228 |
| 434 | Soil Mechanics | 9 | 144 | 700 | 973 |
| 434 | Biopharmaceutics | 8 | 144 | 818 | 1244 |
| 436 | Structural dynamics | 2 | 143 | 1432 | 1019 |
| 436 | epilepsy | 9 | 143 | 656 | 926 |
| 436 | Organometallic chemistry | 5 | 143 | 1816 | 1401 |
| 436 | livestock | 7 | 143 | 406 | 296 |
| 436 | Nitric oxide | 6 | 143 | 206 | 272 |
| 441 | Geriatric Psychiatry | 3 | 142 | 1416 | 1128 |
| 441 | Mineralogy | 7 | 142 | 1080 | 1157 |
| 441 | Australia | 14 | 142 | 939 | 1422 |
| 444 | Neuropsychiatry | 3 | 141 | 1150 | 937 |
| 444 | Exercise | 18 | 141 | 501 | 993 |
| 446 | Multimedia Systems | 5 | 138 | 1508 | 987 |
| 446 | Cognition | 10 | 138 | 1085 | 1677 |
| 448 | Host-parasite interactions | 4 | 137 | 1395 | 1951 |
| 448 | Women's health | 7 | 137 | 989 | 1152 |
| 450 | South America | 26 | 136 | 29 | 30 |
| 451 | Graph Theory | 14 | 135 | 325 | 346 |
| 451 | Green Technology | 1 | 135 | 1071 | 236 |
| 451 | Marine biodiversity | 14 | 135 | 70 | 114 |
| 454 | Computer Science | 18 | 133 | 805 | 1426 |
| 455 | Computer Vision | 3 | 132 | 1375 | 1302 |
| 455 | Biometrics | 1 | 132 | 2136 | 985 |
| 455 | Recycling | 1 | 132 | 1228 | 952 |
| 458 | civilization | 38 | 131 | 263 | 220 |
| 459 | Astrophysics | 16 | 129 | 2058 | 2937 |
| 460 | Pathology | 13 | 128 | 1542 | 2851 |
| 461 | Community Psychiatry | 5 | 125 | 954 | 1159 |
| 462 | Travel | 6 | 124 | 689 | 649 |
| 462 | Probiotics | 7 | 124 | 60 | 112 |
| 464 | Hematology | 22 | 123 | 1944 | 3298 |
| 464 | Bacterial infections | 5 | 123 | 865 | 1347 |
| 466 | Animal health | 27 | 122 | 78 | 213 |
| 466 | Continental shelf | 4 | 122 | 398 | 451 |
| 466 | Immunity | 5 | 122 | 1994 | 2980 |
| 469 | behavioral medicine | 5 | 121 | 1236 | 1713 |
| 469 | Psychiatric Epidemiology | 4 | 121 | 527 | 679 |
| 471 | Genetic Toxicology | 6 | 120 | 319 | 646 |
| 471 | Computational Biology | 8 | 120 | 2321 | 3111 |
| 471 | Differential Equations | 8 | 120 | 645 | 653 |
| 471 | Chromosomes | 6 | 120 | 861 | 1232 |
| 475 | Histology | 7 | 119 | 1566 | 2198 |
| 476 | Exercise therapy | 9 | 118 | 146 | 238 |
| 477 | wind erosion | 2 | 117 | 159 | 136 |
| 478 | Pituitary gland | 2 | 116 | 338 | 239 |
| 479 | Medical Laboratory Science | 4 | 115 | 2298 | 2507 |
| 479 | food contamination | 7 | 115 | 710 | 848 |
| 481 | Virulence | 3 | 114 | 1491 | 1991 |
| 481 | Hazardous waste | 5 | 114 | 758 | 1341 |
| 483 | Meteorology | 10 | 113 | 1621 | 2876 |
| 483 | Fracture mechanics | 9 | 113 | 923 | 1304 |
| 483 | Neuropharmacology | 3 | 113 | 705 | 670 |
| 483 | radioactive waste | 4 | 113 | 723 | 1267 |
| 483 | industrial waste | 4 | 113 | 761 | 1270 |
| 488 | Urology | 10 | 112 | 1440 | 2181 |
| 488 | Plant Genetics | 4 | 112 | 706 | 985 |
| 488 | Quantum electronics | 10 | 112 | 520 | 581 |
| 488 | Optoelectronic devices | 10 | 112 | 395 | 424 |
| 492 | Ethnobotany | 2 | 111 | 332 | 252 |
| 492 | Magnetic Materials | 5 | 111 | 1336 | 1443 |
| 492 | Traditional medicine | 2 | 111 | 469 | 292 |
| 492 | ethnobiology | 2 | 111 | 371 | 284 |
| 492 | Ethnomedicine | 2 | 111 | 266 | 245 |
| 497 | Long-Term Care | 3 | 110 | 693 | 724 |
| 497 | Long-term care facilities | 3 | 110 | 686 | 721 |
| 497 | Diabetes | 5 | 110 | 2309 | 3039 |
| 500 | Mass Spectrometry | 3 | 109 | 1531 | 1298 |
| 500 | personality | 7 | 109 | 1008 | 1644 |
| 502 | Mechanical Engineering | 16 | 108 | 1256 | 1839 |
| 503 | Diagnostic Imaging | 2 | 107 | 3233 | 2174 |
| 503 | Planets | 4 | 107 | 1635 | 2027 |
| 503 | Evolution | 9 | 107 | 1339 | 2357 |
| 506 | Ecohydrology | 3 | 106 | 418 | 327 |
| 506 | System analysis | 12 | 106 | 1411 | 2244 |
| 508 | Carcinogenesis | 3 | 105 | 1329 | 1482 |
| 508 | Health | 19 | 105 | 1004 | 2610 |
| 508 | animal diseases | 1 | 105 | 1044 | 465 |
| 508 | Japan | 7 | 105 | 1696 | 1703 |
| 512 | Ecological Engineering | 3 | 103 | 766 | 901 |
| 512 | Economic Development | 234 | 103 | 23 | 1976 |
| 512 | Ceramic materials | 7 | 103 | 969 | 1287 |
| 512 | Catalysts | 4 | 103 | 649 | 650 |
| 516 | Fractals | 9 | 102 | 700 | 1067 |
| 516 | city planning | 16 | 102 | 690 | 1474 |
| 518 | Systems Biology | 3 | 101 | 2115 | 1913 |
| 518 | Product life cycle | 5 | 101 | 241 | 412 |
| 518 | green products | 5 | 101 | 215 | 404 |
| 518 | Algal blooms | 2 | 101 | 448 | 456 |
| 518 | Cyanobacteria | 2 | 101 | 448 | 456 |
| 518 | Pregnancy | 7 | 101 | 603 | 908 |
| 518 | microalgae | 2 | 101 | 448 | 456 |
| 525 | Software Engineering | 15 | 100 | 409 | 775 |
| 525 | Physical fitness | 9 | 100 | 667 | 1153 |
| 525 | machinery | 15 | 100 | 238 | 667 |
| 525 | Insects | 11 | 100 | 898 | 1376 |
| 525 | Metals | 8 | 100 | 1709 | 2278 |
| 530 | Health Services Administration | 4 | 99 | 1172 | 1233 |
| 530 | health workforce | 2 | 99 | 297 | 294 |
| 530 | Corporate Social Responsibility | 3 | 99 | 284 | 451 |
| 530 | environmental auditing | 3 | 99 | 300 | 454 |
| 530 | Adhesion | 16 | 99 | 133 | 552 |
| 530 | adhesives | 16 | 99 | 147 | 557 |
| 530 | Membranes | 4 | 99 | 1877 | 2353 |
| 530 | food industry | 11 | 99 | 193 | 492 |
| 538 | Fiber Optics | 11 | 98 | 214 | 309 |
| 539 | Ocean Engineering | 3 | 97 | 1827 | 1758 |
| 539 | Cardiovascular diseases | 3 | 97 | 2132 | 1791 |
| 541 | Plant Morphology | 11 | 96 | 241 | 537 |
| 541 | Astrocytes | 1 | 96 | 1011 | 902 |
| 543 | Materials Engineering | 3 | 95 | 859 | 499 |
| 543 | Gene expression regulation | 5 | 95 | 974 | 1402 |
| 543 | Solitons | 6 | 95 | 797 | 1021 |
| 543 | Chaos | 6 | 95 | 797 | 1021 |
| 547 | Comparative Physiology | 4 | 94 | 854 | 960 |
| 547 | healthcare disparities | 5 | 94 | 418 | 531 |
| 547 | Genetic regulation | 4 | 94 | 1332 | 1791 |
| 550 | Horticulture | 7 | 92 | 537 | 699 |
| 550 | economic conditions | 225 | 92 | 7 | 601 |
| 550 | economic analysis | 225 | 92 | 1 | 199 |
| 550 | Combinatorial analysis | 18 | 92 | 442 | 663 |
| 554 | Plant genetic engineering | 2 | 91 | 1351 | 1286 |
| 554 | Immunotoxicology | 1 | 91 | 770 | 260 |
| 554 | amino acids | 3 | 91 | 709 | 768 |
| 557 | environmental indicators | 4 | 90 | 1145 | 1598 |
| 557 | Electrophysiology | 4 | 90 | 1335 | 1199 |
| 557 | Ticks | 10 | 90 | 123 | 273 |
| 560 | Edible plants | 3 | 89 | 232 | 295 |
| 560 | Health promotion | 7 | 89 | 1192 | 1886 |
| 560 | Quality of life | 6 | 89 | 1259 | 2082 |
| 563 | Food Microbiology | 6 | 87 | 1040 | 1982 |
| 563 | Steroids | 5 | 87 | 981 | 1283 |
| 565 | Marine Biotechnology | 2 | 86 | 347 | 331 |
| 565 | Evolutionary Genetics | 4 | 86 | 679 | 872 |
| 565 | Molecular Epidemiology | 4 | 86 | 679 | 872 |
| 565 | Acarology | 9 | 86 | 123 | 286 |
| 565 | Acari | 9 | 86 | 113 | 281 |
| 570 | Traffic Engineering | 8 | 85 | 204 | 530 |
| 570 | Combinatorial chemistry | 2 | 85 | 1337 | 1295 |
| 570 | Teaching | 19 | 85 | 637 | 1580 |
| 573 | Animal husbandry | 2 | 84 | 557 | 330 |
| 574 | Antibacterial agents | 6 | 83 | 548 | 1118 |
| 574 | Chemical processes | 6 | 83 | 457 | 594 |
| 574 | Developing countries | 9 | 83 | 1577 | 2725 |
| 577 | Dynamics | 5 | 81 | 1690 | 1558 |
| 577 | preventive medicine | 3 | 81 | 1775 | 1988 |
| 577 | Molecular ecology | 2 | 81 | 1613 | 1913 |
| 580 | Medical genetics | 5 | 80 | 2935 | 4298 |
| 581 | Data Mining | 7 | 79 | 1180 | 2264 |
| 581 | Business | 5 | 79 | 2052 | 2493 |
| 581 | Work | 14 | 79 | 95 | 343 |
| 584 | Structural optimization | 5 | 78 | 271 | 412 |
| 584 | Diabetes mellitus | 4 | 78 | 2455 | 3361 |
| 586 | Sustainable Development | 12 | 77 | 1026 | 2697 |
| 586 | Child | 8 | 77 | 2010 | 3036 |
| 586 | Photochemistry | 8 | 77 | 1282 | 2226 |
| 589 | Chemical Ecology | 3 | 76 | 638 | 816 |
| 589 | Control Theory | 8 | 76 | 1214 | 1528 |
| 589 | pheromones | 3 | 76 | 578 | 785 |
| 589 | fertility | 5 | 76 | 1233 | 1713 |
| 593 | Algebra | 20 | 75 | 670 | 983 |
| 593 | Animal Nutrition | 9 | 75 | 337 | 636 |
| 593 | Antioxidants | 4 | 75 | 789 | 1447 |
| 593 | animals | 9 | 75 | 814 | 1294 |
| 593 | Ore deposits | 2 | 75 | 713 | 626 |
| 593 | cycles | 10 | 75 | 42 | 61 |
| 599 | Linguistics | 89 | 74 | 150 | 1226 |
| 599 | Geodynamics | 2 | 74 | 1149 | 1095 |
| 599 | gastrointestinal tract | 2 | 74 | 463 | 598 |
| 602 | Systems Engineering | 5 | 73 | 1962 | 2035 |
| 602 | Tribology | 3 | 73 | 1422 | 1330 |
| 602 | Quantum Chemistry | 6 | 73 | 718 | 774 |
| 602 | body temperature | 3 | 73 | 534 | 545 |
| 602 | Water chemistry | 3 | 73 | 357 | 345 |
| 607 | Structural Engineering | 8 | 72 | 1147 | 1685 |
| 607 | Dentistry | 8 | 72 | 520 | 691 |
| 607 | pain management | 4 | 72 | 718 | 906 |
| 607 | Randomized Controlled Trials | 3 | 72 | 1565 | 1356 |
| 611 | Econometrics | 6 | 71 | 1108 | 1367 |
| 611 | poverty | 3 | 71 | 455 | 539 |
| 611 | Socioeconomic Factors | 3 | 71 | 940 | 1109 |
| 611 | probabilities | 11 | 71 | 766 | 1036 |
| 611 | Cerebellum | 8 | 71 | 141 | 453 |
| 611 | biochemical markers | 3 | 71 | 1061 | 1049 |
| 611 | drug evaluation | 5 | 71 | 1288 | 1822 |
| 611 | Cerebellar ataxia | 8 | 71 | 141 | 453 |
| 619 | starch | 4 | 69 | 371 | 429 |
| 619 | Building | 28 | 69 | 153 | 565 |
| 619 | free radicals | 3 | 69 | 1830 | 2410 |
| 619 | drug development | 3 | 69 | 1376 | 2289 |
| 619 | vitamin C | 3 | 69 | 462 | 746 |
| 619 | vitamin E | 3 | 69 | 462 | 746 |
| 625 | Greenhouse gases | 1 | 68 | 735 | 596 |
| 625 | Electrocardiography | 2 | 68 | 680 | 358 |
| 627 | Social Sciences | 59 | 67 | 672 | 3442 |
| 627 | Biomarkers | 2 | 67 | 722 | 509 |
| 627 | breastfeeding | 2 | 67 | 833 | 712 |
| 630 | Physical organic chemistry | 2 | 66 | 1941 | 1669 |
| 630 | Infertility | 4 | 66 | 1272 | 1706 |
| 632 | Integrative Medicine | 3 | 65 | 352 | 236 |
| 632 | Holistic Health | 3 | 65 | 522 | 489 |
| 632 | X-ray crystallography | 12 | 65 | 300 | 629 |
| 632 | Fuzzy systems | 4 | 65 | 1716 | 1565 |
| 636 | Particle Physics | 13 | 64 | 347 | 732 |
| 636 | Structural biology | 1 | 64 | 210 | 156 |
| 636 | Radio wave propagation | 3 | 64 | 945 | 784 |
| 636 | analysis | 2 | 64 | 465 | 477 |
| 640 | Chemical Oceanography | 3 | 63 | 350 | 588 |
| 641 | bioclimatology | 6 | 62 | 683 | 1275 |
| 641 | Photobiology | 7 | 62 | 998 | 1925 |
| 641 | data collection | 3 | 62 | 1399 | 1902 |
| 641 | Educational evaluation | 19 | 62 | 19 | 164 |
| 641 | women | 14 | 62 | 274 | 726 |
| 646 | Biosensors | 1 | 61 | 2391 | 2431 |
| 646 | soil management | 4 | 61 | 526 | 981 |
| 646 | Water quality | 2 | 61 | 358 | 281 |
| 646 | Alloys | 4 | 61 | 234 | 178 |
| 646 | Bioelectronics | 1 | 61 | 2094 | 2227 |
| 651 | Political Science | 21 | 60 | 748 | 1564 |
| 651 | Population Genetics | 3 | 60 | 1495 | 2116 |
| 651 | Soil biology | 5 | 60 | 828 | 1585 |
| 651 | micromechanics | 3 | 60 | 697 | 842 |
| 651 | Library Science | 18 | 60 | 413 | 891 |
| 651 | synthesis | 3 | 60 | 1271 | 1033 |
| 657 | Physical Geography | 14 | 59 | 175 | 677 |
| 657 | Calculus of Variations | 10 | 59 | 251 | 459 |
| 657 | weather | 5 | 59 | 460 | 920 |
| 660 | Pharmacogenetics | 2 | 58 | 1733 | 1953 |
| 660 | Human Geography | 18 | 58 | 427 | 1248 |
| 660 | industrial hygiene | 9 | 58 | 653 | 1152 |
| 660 | Welding | 13 | 58 | 99 | 181 |
| 660 | child abuse | 1 | 58 | 1708 | 1377 |
| 665 | Global Health | 7 | 57 | 755 | 1370 |
| 665 | tillage | 3 | 57 | 476 | 865 |
| 667 | Health Services Research | 7 | 56 | 1401 | 2546 |
| 667 | Remote Sensing | 4 | 56 | 1571 | 1530 |
| 667 | Mental Health Services | 2 | 56 | 2089 | 1837 |
| 667 | Developmental Immunology | 5 | 56 | 717 | 1367 |
| 667 | management | 15 | 56 | 1784 | 4228 |
| 667 | Hydrocarbons | 2 | 56 | 180 | 122 |
| 673 | Educational Sociology | 8 | 55 | 151 | 403 |
| 673 | microwave antennas | 2 | 55 | 610 | 434 |
| 673 | Immunochemistry | 3 | 55 | 1364 | 1539 |
| 673 | Developmental Neurobiology | 1 | 55 | 1238 | 846 |
| 677 | Production Engineering | 10 | 54 | 1191 | 2269 |
| 677 | Stochastic Processes | 5 | 54 | 790 | 1015 |
| 679 | Database Management | 6 | 53 | 642 | 1080 |
| 679 | Biogeochemistry | 2 | 53 | 1581 | 1946 |
| 679 | Adolescent | 6 | 53 | 1979 | 3017 |
| 679 | Transplantation | 6 | 53 | 1187 | 2095 |
| 683 | Optoelectronics | 6 | 52 | 388 | 485 |
| 683 | Alkaloids | 1 | 52 | 70 | 35 |
| 683 | Research Design | 6 | 52 | 1062 | 2081 |
| 683 | Public opinion | 4 | 52 | 383 | 653 |
| 683 | Pathogens | 6 | 52 | 34 | 152 |
| 683 | Climate | 4 | 52 | 591 | 1098 |
| 683 | public opinion polls | 4 | 52 | 63 | 77 |
| 683 | Mollusks | 3 | 52 | 257 | 203 |
| 691 | Urban Policy | 13 | 51 | 254 | 1255 |
| 691 | Optical Communications | 6 | 51 | 429 | 731 |
| 691 | Regional Planning | 17 | 51 | 674 | 1955 |
| 691 | Integrated Optics | 6 | 51 | 30 | 29 |
| 691 | Radiation | 7 | 51 | 1828 | 2891 |
| 691 | Child Development | 8 | 51 | 1491 | 3060 |
| 691 | Chemical industry | 3 | 51 | 1647 | 1623 |
| 698 | Drug delivery systems | 6 | 50 | 1249 | 2602 |
| 698 | atmosphere | 4 | 50 | 817 | 1329 |
| 700 | Telemedicine | 5 | 49 | 298 | 789 |
| 700 | Crystallization | 10 | 49 | 256 | 558 |
| 700 | Transnational corporations | 1 | 49 | 756 | 531 |
| 700 | International Finance | 1 | 49 | 2659 | 2058 |
| 700 | Yeast | 1 | 49 | 931 | 817 |
| 700 | Growth | 6 | 49 | 1068 | 2337 |
| 706 | Pharmacogenomics | 1 | 48 | 803 | 724 |
| 706 | Business Ethics | 1 | 48 | 1648 | 1617 |
| 706 | Neuroplasticity | 2 | 48 | 579 | 714 |
| 706 | neuronal plasticity | 2 | 48 | 484 | 650 |
| 706 | reasoning | 1 | 48 | 850 | 526 |
| 711 | Journalism | 3 | 47 | 629 | 515 |
| 711 | Forest Ecology | 6 | 47 | 871 | 1784 |
| 711 | Environmental Geochemistry | 4 | 47 | 457 | 901 |
| 711 | Hypertension in pregnancy | 3 | 47 | 365 | 235 |
| 711 | Minerals | 4 | 47 | 736 | 1226 |
| 716 | economic policy | 27 | 46 | 788 | 2627 |
| 716 | Entropy | 6 | 46 | 777 | 1328 |
| 718 | Paleobiology | 4 | 45 | 341 | 384 |
| 718 | Cognitive Science | 4 | 45 | 1546 | 2450 |
| 718 | Sexual health | 14 | 45 | 336 | 1092 |
| 718 | mass transfer | 1 | 45 | 2812 | 2430 |
| 718 | health planning | 5 | 45 | 2075 | 3126 |
| 723 | Rock Mechanics | 9 | 44 | 552 | 1313 |
| 723 | Cartography | 16 | 44 | 130 | 528 |
| 723 | Atmospheric Physics | 2 | 44 | 2224 | 2468 |
| 723 | Primary health care | 5 | 44 | 1779 | 2899 |
| 723 | Social behavior | 9 | 44 | 726 | 1932 |
| 723 | Sociobiology | 9 | 44 | 110 | 371 |
| 729 | Civil Engineering | 6 | 43 | 1420 | 1774 |
| 729 | Applied Linguistics | 23 | 43 | 105 | 682 |
| 729 | Respiratory system | 1 | 43 | 1308 | 1219 |
| 732 | Clinical Immunology | 3 | 42 | 1731 | 2312 |
| 732 | Computational Linguistics | 4 | 42 | 499 | 582 |
| 732 | Wetland conservation | 2 | 42 | 496 | 571 |
| 732 | glycoproteins | 4 | 42 | 472 | 1007 |
| 732 | Glycoconjugates | 4 | 42 | 472 | 1007 |
| 732 | water supply | 2 | 42 | 1360 | 1703 |
| 732 | urban forestry | 4 | 42 | 195 | 488 |
| 732 | glycolipids | 4 | 42 | 472 | 1007 |
| 732 | Wetlands | 2 | 42 | 509 | 573 |
| 741 | Robotics | 4 | 41 | 1680 | 2322 |
| 741 | Earthquake Engineering | 1 | 41 | 2081 | 1900 |
| 741 | Molecular Microbiology | 1 | 41 | 1723 | 1974 |
| 741 | Geographic information systems | 4 | 41 | 1113 | 1468 |
| 741 | Cross-Cultural Studies | 2 | 41 | 1009 | 1110 |
| 741 | Forest Management | 4 | 41 | 1042 | 1784 |
| 741 | Iron | 2 | 41 | 603 | 583 |
| 741 | cross-cultural comparison | 2 | 41 | 815 | 870 |
| 741 | Bacterial diseases | 1 | 41 | 635 | 599 |
| 750 | Pediatric Dermatology | 2 | 40 | 737 | 711 |
| 750 | Political Sociology | 5 | 40 | 351 | 593 |
| 750 | Ichthyology | 4 | 40 | 476 | 608 |
| 750 | Wireless Communication | 2 | 40 | 662 | 560 |
| 750 | Chemical kinetics | 4 | 40 | 740 | 854 |
| 750 | Fish | 4 | 40 | 358 | 513 |
| 756 | Embryology | 4 | 39 | 1750 | 2900 |
| 756 | biobanks | 3 | 39 | 151 | 230 |
| 756 | hazard mitigation | 4 | 39 | 886 | 1648 |
| 756 | Asia | 4 | 39 | 3101 | 3702 |
| 756 | Carbohydrates | 4 | 39 | 445 | 968 |
| 756 | Sedimentary rocks | 1 | 39 | 1065 | 995 |
| 756 | natural disasters | 4 | 39 | 1294 | 2264 |
| 763 | Sedimentology | 1 | 38 | 1258 | 1132 |
| 763 | older people | 5 | 38 | 1636 | 2195 |
| 763 | drug addiction | 1 | 38 | 2282 | 2198 |
| 763 | alcoholism | 1 | 38 | 2944 | 2689 |
| 767 | Molecular Pharmacology | 2 | 37 | 1206 | 1777 |
| 767 | Ecological Genetics | 4 | 37 | 653 | 1020 |
| 767 | Geodesy | 1 | 37 | 1560 | 1233 |
| 767 | Safety management | 8 | 37 | 259 | 942 |
| 767 | Argentina | 8 | 37 | 113 | 94 |
| 772 | Photonics | 2 | 36 | 2365 | 2793 |
| 772 | Feminism | 6 | 36 | 405 | 735 |
| 772 | dietary supplements | 2 | 36 | 1185 | 1630 |
| 772 | shellfish | 3 | 36 | 208 | 307 |
| 772 | drug toxicity | 2 | 36 | 725 | 1083 |
| 777 | Surgery | 2 | 35 | 3141 | 3718 |
| 777 | Biogeochemical cycles | 1 | 35 | 838 | 1126 |
| 777 | Computer-Aided Design | 4 | 35 | 1259 | 2010 |
| 777 | Hormones | 5 | 35 | 1332 | 2612 |
| 777 | Oligosaccharide | 3 | 35 | 369 | 825 |
| 777 | Biomolecules | 2 | 35 | 695 | 1114 |
| 777 | Marine mammals | 2 | 35 | 438 | 523 |
| 784 | History of Medicine | 13 | 34 | 208 | 356 |
| 784 | Restoration Ecology | 5 | 34 | 359 | 904 |
| 784 | Obesity | 2 | 34 | 3093 | 4057 |
| 787 | Naval Architecture | 2 | 33 | 464 | 459 |
| 787 | Algorithms | 3 | 33 | 844 | 1001 |
| 787 | Animal ecology | 6 | 33 | 983 | 1970 |
| 787 | immunoassay | 1 | 33 | 529 | 291 |
| 791 | History | 20 | 32 | 455 | 616 |
| 791 | Mobile Computing | 5 | 32 | 972 | 1524 |
| 791 | Neurobiology | 5 | 32 | 1800 | 3544 |
| 791 | School Psychology | 1 | 32 | 904 | 845 |
| 791 | Neurodegenerative Diseases | 1 | 32 | 3 | 9 |
| 791 | commerce | 3 | 32 | 1897 | 2329 |
| 791 | school psychologists | 1 | 32 | 402 | 448 |
| 791 | packaging | 2 | 32 | 186 | 278 |
| 799 | Philosophy | 43 | 31 | 443 | 1288 |
| 799 | Chemotherapy | 2 | 31 | 2425 | 2976 |
| 799 | symbiosis | 3 | 31 | 130 | 333 |
| 799 | Biotransformation | 3 | 31 | 117 | 220 |
| 799 | Neuromuscular diseases | 2 | 31 | 1077 | 1457 |
| 799 | Muscles | 2 | 31 | 1396 | 1995 |
| 805 | Transportation Engineering | 4 | 30 | 303 | 678 |
| 805 | Organizational Sociology | 5 | 30 | 254 | 612 |
| 805 | Signal Transduction | 2 | 30 | 2091 | 2909 |
| 805 | Erosion | 2 | 30 | 118 | 272 |
| 809 | Food Science | 4 | 29 | 131 | 301 |
| 809 | Orthopedics | 1 | 29 | 3048 | 2898 |
| 809 | Energy Conversion | 1 | 29 | 2049 | 2279 |
| 809 | Orthopedic Surgery | 1 | 29 | 1801 | 1696 |
| 809 | Agricultural Biotechnology | 2 | 29 | 479 | 313 |
| 809 | embryonic development | 3 | 29 | 497 | 986 |
| 809 | Animal genetics | 4 | 29 | 585 | 1157 |
| 809 | antibiotics | 1 | 29 | 854 | 874 |
| 817 | Applied Mathematics | 4 | 28 | 967 | 884 |
| 817 | Ethics | 6 | 28 | 764 | 1617 |
| 817 | Securities | 2 | 28 | 495 | 718 |
| 817 | rare diseases | 4 | 28 | 726 | 1501 |
| 817 | Microstructure | 11 | 28 | 366 | 1343 |
| 817 | herbs | 2 | 28 | 99 | 109 |
| 817 | stocks | 2 | 28 | 189 | 441 |
| 824 | Clinical Trials | 2 | 27 | 972 | 1290 |
| 824 | Human-Computer Interaction | 2 | 27 | 2191 | 2735 |
| 824 | Corporate governance | 2 | 27 | 858 | 1195 |
| 824 | water resources | 1 | 27 | 462 | 325 |
| 824 | Agricultural systems | 1 | 27 | 703 | 924 |
| 829 | Plant Biotechnology | 2 | 26 | 1186 | 1615 |
| 829 | Topology | 2 | 26 | 471 | 407 |
| 829 | Human Rights | 1 | 26 | 1253 | 916 |
| 829 | Social Entrepreneurship | 1 | 26 | 330 | 352 |
| 829 | carbon monoxide | 1 | 26 | 737 | 959 |
| 834 | Andrology | 2 | 25 | 1034 | 1444 |
| 834 | Geriatric Pharmacology | 1 | 25 | 746 | 838 |
| 834 | Petrology | 2 | 25 | 1198 | 1510 |
| 834 | Ecophysiology | 4 | 25 | 174 | 592 |
| 834 | Neurovirology | 2 | 25 | 400 | 685 |
| 834 | Mental Health | 3 | 25 | 2101 | 3151 |
| 834 | reforestation | 1 | 25 | 368 | 372 |
| 834 | transgenic organisms | 1 | 25 | 657 | 827 |
| 834 | transgenic animals | 1 | 25 | 622 | 797 |
| 834 | Synchrotron Radiation | 3 | 25 | 476 | 757 |
| 834 | Bioinformatics | 1 | 25 | 3992 | 4021 |
| 834 | Transgenic plants | 1 | 25 | 1047 | 1276 |
| 834 | Elderly | 1 | 25 | 2615 | 1663 |
| 834 | Mesoporous materials | 1 | 25 | 190 | 232 |
| 834 | Paleopathology | 1 | 25 | 657 | 529 |
| 834 | afforestation | 1 | 25 | 368 | 372 |
| 834 | indoor air pollution | 1 | 25 | 901 | 1021 |
| 834 | Ventilation | 1 | 25 | 1187 | 1198 |
| 834 | school sports | 3 | 25 | 131 | 273 |
| 834 | Sick building syndrome | 1 | 25 | 901 | 1021 |
| 834 | Fluorescence | 2 | 25 | 713 | 827 |
| 855 | Human genetics | 1 | 24 | 4076 | 5121 |
| 855 | Nonlinear Optics | 3 | 24 | 314 | 429 |
| 855 | Quantum theory | 2 | 24 | 1327 | 1522 |
| 855 | recreation | 4 | 24 | 648 | 1024 |
| 859 | Otolaryngology | 1 | 23 | 1317 | 1281 |
| 859 | Hydraulic Engineering | 2 | 23 | 1394 | 1741 |
| 859 | violence | 3 | 23 | 1120 | 1948 |
| 859 | sex crimes | 3 | 23 | 690 | 1238 |
| 863 | Political Economy | 3 | 22 | 160 | 212 |
| 863 | Industrial Safety | 2 | 22 | 1851 | 2330 |
| 863 | Combinatorial optimization | 5 | 22 | 377 | 735 |
| 863 | Radioisotopes | 2 | 22 | 1923 | 2117 |
| 863 | Seaweed | 3 | 22 | 681 | 1266 |
| 863 | Bones | 2 | 22 | 1450 | 2097 |
| 869 | Oral Medicine | 7 | 21 | 440 | 1206 |
| 869 | Hypertension | 3 | 21 | 2142 | 3578 |
| 869 | Discrete Mathematics | 6 | 21 | 215 | 370 |
| 869 | Erectile dysfunction | 2 | 21 | 429 | 660 |
| 869 | Reproductive toxicology | 3 | 21 | 625 | 1276 |
| 869 | graph | 6 | 21 | 215 | 370 |
| 869 | Beetles | 2 | 21 | 234 | 143 |
| 869 | Algae | 2 | 21 | 1039 | 1480 |
| 869 | herbicides | 6 | 21 | 216 | 633 |
| 878 | Radiology | 2 | 20 | 2585 | 2978 |
| 878 | Food Safety | 1 | 20 | 624 | 676 |
| 878 | Requirements Engineering | 3 | 20 | 67 | 249 |
| 878 | Precision medicine | 1 | 20 | 560 | 549 |
| 878 | Enzyme inhibitors | 2 | 20 | 561 | 1009 |
| 878 | Neuroimmunology | 2 | 20 | 1164 | 2017 |
| 878 | Adaptive control systems | 2 | 20 | 808 | 1046 |
| 878 | air quality | 1 | 20 | 653 | 705 |
| 886 | Nanoelectronics | 4 | 19 | 902 | 1508 |
| 886 | Number Theory | 6 | 19 | 662 | 1025 |
| 886 | Artificial Organs | 1 | 19 | 1465 | 1391 |
| 886 | Computational Complexity | 2 | 19 | 1513 | 1774 |
| 886 | Semiconductor industry | 4 | 19 | 663 | 1261 |
| 891 | Asthma | 2 | 18 | 1186 | 1748 |
| 891 | Social Psychology | 5 | 18 | 1922 | 4161 |
| 891 | Databases | 3 | 18 | 417 | 714 |
| 891 | Nuclear Chemistry | 4 | 18 | 1201 | 1866 |
| 891 | nutrition policy | 5 | 18 | 40 | 192 |
| 891 | Mass Media | 28 | 18 | 206 | 1109 |
| 891 | Cosmochemistry | 3 | 18 | 1098 | 2054 |
| 891 | Human Resources | 1 | 18 | 864 | 1196 |
| 891 | investigative techniques | 1 | 18 | 354 | 543 |
| 891 | silicon | 1 | 18 | 883 | 786 |
| 901 | Astronomy | 4 | 17 | 2928 | 4492 |
| 901 | Social Movements | 14 | 17 | 19 | 295 |
| 901 | Electron Microscopy | 1 | 17 | 890 | 954 |
| 901 | Navier-Stokes equations | 1 | 17 | 319 | 263 |
| 905 | Occupational Therapy | 2 | 16 | 1635 | 1994 |
| 905 | Agricultural Engineering | 1 | 16 | 1088 | 1188 |
| 905 | Serology | 2 | 16 | 826 | 1357 |
| 905 | Plant Taxonomy | 3 | 16 | 498 | 900 |
| 905 | Palynology | 1 | 16 | 568 | 575 |
| 905 | Digital electronics | 2 | 16 | 481 | 581 |
| 905 | Wildlife conservation | 5 | 16 | 1122 | 2858 |
| 905 | physical therapy techniques | 1 | 16 | 385 | 337 |
| 905 | Freeze-Drying | 2 | 16 | 814 | 1136 |
| 905 | Hypothermia | 2 | 16 | 814 | 1136 |
| 905 | Freeze Drying | 2 | 16 | 814 | 1136 |
| 905 | Groundwater | 2 | 16 | 1043 | 1585 |
| 905 | Bacteria | 1 | 16 | 829 | 1221 |
| 905 | libraries | 7 | 16 | 519 | 999 |
| 919 | Geotechnical Engineering | 7 | 15 | 335 | 1102 |
| 919 | Conservation Biology | 3 | 15 | 1420 | 2688 |
| 919 | Radiobiology | 1 | 15 | 3408 | 3403 |
| 919 | Gerontology | 1 | 15 | 3914 | 3862 |
| 919 | Ubiquitous computing | 3 | 15 | 231 | 406 |
| 919 | Spectroscopy | 1 | 15 | 536 | 341 |
| 919 | polar regions | 2 | 15 | 1035 | 1584 |
| 919 | Light | 1 | 15 | 1979 | 2513 |
| 919 | Africa | 1 | 15 | 3323 | 2980 |
| 919 | Information society | 2 | 15 | 211 | 474 |
| 919 | Detectors | 3 | 15 | 1133 | 1929 |
| 919 | Navigation | 1 | 15 | 904 | 832 |
| 931 | Total Quality Management | 1 | 14 | 1201 | 1465 |
| 931 | Maternal health services | 5 | 14 | 354 | 1292 |
| 931 | Child welfare | 5 | 14 | 1012 | 2609 |
| 931 | Eating Disorders | 4 | 14 | 917 | 2068 |
| 931 | Feeding and Eating Disorders | 4 | 14 | 875 | 1997 |
| 931 | isomerism | 1 | 14 | 756 | 910 |
| 931 | disabilities | 2 | 14 | 1186 | 1917 |
| 931 | Chirality | 1 | 14 | 756 | 910 |
| 939 | Information Theory | 3 | 13 | 1434 | 2245 |
| 939 | Visual Communication | 10 | 13 | 153 | 1026 |
| 939 | Pediatric Neurology | 1 | 13 | 2087 | 2868 |
| 939 | Clinical Biochemistry | 2 | 13 | 2127 | 3066 |
| 939 | air quality management | 1 | 13 | 1240 | 1817 |
| 939 | Infection control | 2 | 13 | 1141 | 2161 |
| 939 | Ferroelectricity | 5 | 13 | 853 | 1441 |
| 939 | Hospitals | 1 | 13 | 1672 | 1964 |
| 939 | DNA repair | 1 | 13 | 674 | 997 |
| 939 | Drug discovery | 1 | 13 | 703 | 1034 |
| 939 | Reptiles | 3 | 13 | 409 | 692 |
| 950 | Law | 51 | 12 | 260 | 1880 |
| 950 | Public Policy | 1 | 12 | 3661 | 4527 |
| 950 | Helminthology | 2 | 12 | 224 | 355 |
| 950 | Herpetology | 2 | 12 | 532 | 756 |
| 950 | Evolutionary Computation | 2 | 12 | 553 | 1114 |
| 950 | social conflict | 7 | 12 | 114 | 547 |
| 950 | Helminths | 2 | 12 | 224 | 355 |
| 950 | social control | 7 | 12 | 8 | 9 |
| 950 | Spain | 8 | 12 | 508 | 1005 |
| 950 | econometric models | 1 | 12 | 1171 | 1463 |
| 960 | Kinetics | 1 | 11 | 1117 | 1397 |
| 960 | Machine Learning | 2 | 11 | 568 | 967 |
| 960 | Energy metabolism | 2 | 11 | 935 | 1546 |
| 960 | Microprocessors | 2 | 11 | 816 | 1337 |
| 960 | Happiness | 1 | 11 | 944 | 1327 |
| 960 | Noise control | 3 | 11 | 341 | 137 |
| 960 | Semiotics | 10 | 11 | 134 | 513 |
| 960 | Interfaces | 1 | 11 | 732 | 895 |
| 960 | Outdoor recreation | 1 | 11 | 201 | 344 |
| 960 | Matroids | 1 | 11 | 435 | 503 |
| 960 | Soundproofing | 2 | 11 | 154 | 181 |
| 960 | ecotourism | 1 | 11 | 502 | 833 |
| 960 | Recombinant DNA | 2 | 11 | 2387 | 3798 |
| 960 | Industrial noise | 2 | 11 | 67 | 70 |
| 960 | Isotopes | 1 | 11 | 322 | 437 |
| 975 | Fluid Mechanics | 1 | 10 | 3042 | 3482 |
| 975 | Engineering Mathematics | 4 | 10 | 2690 | 4449 |
| 975 | Ceramics | 4 | 10 | 1598 | 3087 |
| 975 | Fuzzy Logic | 1 | 10 | 294 | 421 |
| 975 | Palliative Care | 2 | 10 | 1481 | 2462 |
| 975 | Developmental Genetics | 1 | 10 | 1091 | 1639 |
| 975 | hospice care | 2 | 10 | 946 | 1769 |
| 975 | nuclear astrophysics | 2 | 10 | 689 | 1075 |
| 975 | Image enhancement | 1 | 10 | 706 | 978 |
| 975 | cooperation | 1 | 10 | 344 | 365 |
| 975 | gene therapy | 1 | 10 | 2374 | 3206 |
| 975 | philology | 45 | 10 | 94 | 433 |
| 975 | nucleic acids | 1 | 10 | 3212 | 4125 |
| 975 | DNS | 1 | 10 | 1162 | 1684 |
| 975 | France | 1 | 10 | 924 | 790 |
| 975 | irrigation | 1 | 10 | 746 | 935 |
| 975 | popular education | 19 | 10 | 8 | 12 |
| 975 | supercritical fluids | 1 | 10 | 764 | 1198 |
| 975 | drainage | 1 | 10 | 632 | 747 |
| 975 | government | 3 | 10 | 905 | 1275 |
| 975 | Genetic therapy | 1 | 10 | 2533 | 3380 |
| 975 | wood | 1 | 10 | 916 | 1106 |
| 975 | DNA | 1 | 10 | 1389 | 1835 |
| 975 | civil service | 3 | 10 | 423 | 892 |
| 975 | Immune system | 1 | 10 | 2145 | 2901 |
| 975 | Genes | 1 | 10 | 2359 | 3075 |