| 1 | Chemistry | 635 | 71.0K | 681 | 317 |
| 2 | Catalysis | 570 | 31.6K | 109 | 87 |
| 3 | Chemical Engineering | 232 | 27.1K | 429 | 116 |
| 4 | Electrochemistry | 588 | 22.5K | 86 | 50 |
| 5 | Carbon | 231 | 21.8K | 19 | 5 |
| 6 | Microbiology | 187 | 20.1K | 935 | 522 |
| 7 | Ecology | 310 | 14.8K | 518 | 597 |
| 8 | Physics | 313 | 14.6K | 1248 | 1633 |
| 9 | Surface Chemistry | 302 | 13.0K | 180 | 153 |
| 10 | Science | 265 | 10.4K | 1221 | 1976 |
| 11 | Astronomy | 286 | 10.4K | 457 | 552 |
| 12 | Astrophysics | 231 | 9.7K | 579 | 694 |
| 13 | Electrochemical Analysis | 214 | 9.5K | 21 | 12 |
| 14 | Environment | 131 | 8.2K | 678 | 745 |
| 15 | Biology | 153 | 8.1K | 1789 | 2191 |
| 16 | Pollution | 139 | 7.3K | 714 | 722 |
| 17 | Tourism | 176 | 6.6K | 38 | 70 |
| 18 | Materials | 167 | 6.5K | 1006 | 930 |
| 19 | Economics | 246 | 6.5K | 338 | 333 |
| 20 | Biochemistry | 189 | 6.0K | 1692 | 1799 |
| 21 | Medicine | 229 | 5.7K | 1466 | 2102 |
| 22 | Analytical Chemistry | 145 | 5.6K | 603 | 490 |
| 23 | Molecular structure | 108 | 5.6K | 156 | 160 |
| 24 | Solid State Physics | 160 | 5.5K | 718 | 621 |
| 25 | Microbial Ecology | 95 | 5.5K | 271 | 329 |
| 26 | Condensed Matter | 159 | 5.5K | 680 | 612 |
| 27 | Research | 197 | 5.5K | 1247 | 1444 |
| 28 | Spectrum analysis | 139 | 5.0K | 685 | 801 |
| 29 | Biotechnology | 69 | 4.9K | 1539 | 1099 |
| 30 | management | 89 | 4.8K | 503 | 452 |
| 31 | Molecular Biology | 102 | 4.8K | 1952 | 1950 |
| 32 | Botany | 152 | 4.7K | 568 | 713 |
| 33 | Organic Chemistry | 109 | 4.6K | 437 | 329 |
| 34 | environmental pollution | 94 | 4.2K | 690 | 661 |
| 35 | Polymers | 105 | 4.1K | 928 | 721 |
| 36 | Neurology | 83 | 4.0K | 1494 | 1431 |
| 37 | Pharmaceutical Technology | 43 | 4.0K | 252 | 59 |
| 37 | catalytic activity | 43 | 4.0K | 56 | 15 |
| 39 | Environmental Management | 77 | 4.0K | 311 | 260 |
| 40 | Renewable Energy Sources | 15 | 3.7K | 1232 | 400 |
| 41 | Colloids | 67 | 3.5K | 882 | 661 |
| 42 | polymerization | 95 | 3.5K | 808 | 643 |
| 43 | Nanostructured Materials | 93 | 3.5K | 546 | 519 |
| 44 | Biomedical Engineering | 59 | 3.4K | 1171 | 695 |
| 45 | Public Health | 183 | 3.3K | 605 | 989 |
| 46 | Environmental Health | 105 | 3.3K | 821 | 1049 |
| 47 | Water | 55 | 3.3K | 492 | 458 |
| 48 | Physical Chemistry | 30 | 3.1K | 786 | 332 |
| 49 | Optics | 169 | 3.1K | 592 | 626 |
| 50 | Plant Ecology | 65 | 3.1K | 249 | 263 |
| 51 | Engineering Geology | 63 | 3.1K | 168 | 124 |
| 52 | Marine Biology | 105 | 3.0K | 386 | 428 |
| 53 | Green Chemistry | 54 | 3.0K | 265 | 251 |
| 54 | Building Materials | 67 | 3.0K | 202 | 212 |
| 55 | Water pollution | 73 | 2.9K | 402 | 459 |
| 56 | Nanotechnology | 49 | 2.8K | 1588 | 1322 |
| 57 | Environmental Policy | 48 | 2.7K | 678 | 617 |
| 58 | Zeolites | 67 | 2.6K | 43 | 47 |
| 59 | Technology | 46 | 2.5K | 1077 | 576 |
| 60 | Environmental monitoring | 62 | 2.4K | 678 | 754 |
| 61 | Econometrics | 40 | 2.4K | 277 | 185 |
| 62 | Evolution | 21 | 2.4K | 792 | 493 |
| 63 | Biodiversity conservation | 37 | 2.3K | 474 | 598 |
| 64 | Materials Science | 65 | 2.3K | 1248 | 1188 |
| 65 | Bioengineering | 30 | 2.3K | 1627 | 1296 |
| 66 | Molecular evolution | 11 | 2.3K | 1033 | 312 |
| 67 | Nuclear Physics | 75 | 2.2K | 1407 | 1277 |
| 68 | Natural history | 27 | 2.2K | 1649 | 2830 |
| 69 | Geophysics | 61 | 2.2K | 1053 | 1003 |
| 70 | Molecular Microbiology | 17 | 2.2K | 391 | 244 |
| 71 | Fisheries | 56 | 2.1K | 277 | 232 |
| 72 | Epidemiology | 84 | 2.1K | 687 | 878 |
| 73 | Adhesion | 78 | 2.0K | 5 | 6 |
| 73 | adhesives | 78 | 2.0K | 8 | 6 |
| 75 | Social Sciences | 154 | 2.0K | 263 | 369 |
| 76 | Biophysics | 86 | 2.0K | 1486 | 1685 |
| 77 | Ophthalmology | 60 | 1.9K | 345 | 370 |
| 78 | coal | 44 | 1.8K | 271 | 270 |
| 79 | Physiology | 40 | 1.8K | 1532 | 1279 |
| 80 | Biochemical Engineering | 41 | 1.8K | 892 | 1286 |
| 81 | energy development | 2 | 1.8K | 1300 | 184 |
| 82 | Education | 85 | 1.7K | 627 | 545 |
| 83 | Geology | 70 | 1.7K | 773 | 790 |
| 84 | Environmental Chemistry | 15 | 1.7K | 996 | 579 |
| 85 | Sustainable Engineering | 35 | 1.7K | 323 | 281 |
| 86 | Mathematics | 205 | 1.7K | 861 | 1118 |
| 87 | plant communities | 27 | 1.7K | 307 | 283 |
| 88 | Energy Conversion | 12 | 1.7K | 657 | 444 |
| 89 | Industrial Engineering | 68 | 1.7K | 226 | 273 |
| 90 | Climate change | 14 | 1.7K | 548 | 681 |
| 90 | Eutrophication | 14 | 1.7K | 540 | 679 |
| 92 | radioactive waste | 27 | 1.6K | 75 | 87 |
| 92 | industrial waste | 27 | 1.6K | 92 | 88 |
| 92 | Hazardous waste | 27 | 1.6K | 112 | 100 |
| 95 | Business | 47 | 1.6K | 410 | 538 |
| 96 | Image Processing | 50 | 1.6K | 318 | 335 |
| 97 | Geography | 113 | 1.6K | 241 | 411 |
| 97 | Sustainable Development | 28 | 1.6K | 448 | 342 |
| 99 | Mathematical Economics | 13 | 1.6K | 103 | 53 |
| 100 | environmental protection | 34 | 1.6K | 960 | 811 |
| 101 | Atomic spectroscopy | 45 | 1.6K | 161 | 106 |
| 102 | Oceanography | 42 | 1.6K | 541 | 540 |
| 103 | Biocompatible Materials | 37 | 1.6K | 1347 | 1465 |
| 104 | Neurophysiology | 21 | 1.5K | 1484 | 1171 |
| 105 | Environmental Microbiology | 41 | 1.5K | 213 | 384 |
| 106 | Metallurgy | 29 | 1.5K | 865 | 546 |
| 107 | Operations Research | 74 | 1.5K | 318 | 462 |
| 108 | Environmental Engineering | 33 | 1.5K | 1188 | 1102 |
| 109 | Spain | 594 | 1.4K | 10 | 15 |
| 110 | Statistical physics | 52 | 1.4K | 1174 | 1081 |
| 111 | ecosystem | 36 | 1.4K | 274 | 368 |
| 112 | Bioorganic chemistry | 24 | 1.4K | 1197 | 798 |
| 113 | Optical materials | 43 | 1.4K | 716 | 846 |
| 114 | Entomology | 87 | 1.4K | 333 | 427 |
| 115 | Europe | 158 | 1.3K | 251 | 655 |
| 116 | Wildlife conservation | 37 | 1.3K | 254 | 346 |
| 117 | sanitation | 38 | 1.3K | 405 | 686 |
| 118 | Forest Ecology | 22 | 1.3K | 346 | 255 |
| 119 | Composite Materials | 29 | 1.2K | 964 | 909 |
| 120 | concrete | 20 | 1.2K | 314 | 288 |
| 121 | Sedimentary rocks | 28 | 1.2K | 62 | 63 |
| 122 | Environmental Geology | 27 | 1.2K | 318 | 233 |
| 123 | Food service management | 15 | 1.2K | 95 | 63 |
| 124 | Hydrology | 35 | 1.1K | 743 | 698 |
| 125 | Energy Policy | 14 | 1.1K | 1340 | 881 |
| 126 | Biodiversity | 33 | 1.1K | 618 | 698 |
| 127 | Physical organic chemistry | 20 | 1.1K | 513 | 198 |
| 128 | Psychology | 99 | 1.1K | 853 | 1606 |
| 129 | Earth Sciences | 38 | 1.1K | 1027 | 1031 |
| 130 | Database Management | 32 | 1.1K | 167 | 179 |
| 131 | United States | 39 | 1.0K | 1685 | 1561 |
| 132 | Neurochemistry | 23 | 1.0K | 1101 | 1011 |
| 133 | Cement | 19 | 1.0K | 173 | 207 |
| 134 | Artificial Intelligence | 62 | 1.0K | 742 | 1037 |
| 135 | soil microbiology | 23 | 1.0K | 526 | 645 |
| 136 | Geomorphology | 25 | 1.0K | 428 | 426 |
| 137 | Marine Ecology | 32 | 1.0K | 130 | 92 |
| 138 | Birds | 50 | 971 | 236 | 227 |
| 139 | Mixed methods research | 54 | 961 | 2 | 6 |
| 140 | Forest Management | 17 | 960 | 420 | 300 |
| 141 | Agricultural Chemistry | 33 | 945 | 678 | 741 |
| 142 | Software Engineering | 29 | 923 | 191 | 115 |
| 143 | Information Science | 47 | 908 | 410 | 684 |
| 144 | Game Theory | 35 | 900 | 77 | 75 |
| 145 | Ornithology | 44 | 891 | 189 | 173 |
| 146 | Aquaculture | 23 | 884 | 519 | 427 |
| 147 | finance | 35 | 869 | 614 | 603 |
| 148 | Computer Vision | 25 | 866 | 294 | 406 |
| 149 | Geochemistry | 19 | 843 | 1015 | 900 |
| 150 | Ultrasonics | 18 | 830 | 319 | 252 |
| 151 | Information Technology | 28 | 829 | 641 | 498 |
| 152 | Regional Planning | 35 | 828 | 380 | 410 |
| 153 | Brain | 27 | 827 | 1158 | 1295 |
| 154 | Insects | 39 | 816 | 293 | 359 |
| 155 | Climatology | 19 | 805 | 792 | 749 |
| 156 | Manufacturing Processes | 37 | 798 | 592 | 698 |
| 157 | Membranes | 22 | 793 | 708 | 810 |
| 158 | Soil Science | 32 | 775 | 505 | 654 |
| 158 | Mycology | 13 | 775 | 927 | 609 |
| 160 | Nutrition | 34 | 773 | 1600 | 2038 |
| 160 | Fungi | 12 | 773 | 555 | 436 |
| 162 | Solid State Chemistry | 27 | 760 | 971 | 774 |
| 163 | Metals | 14 | 758 | 1246 | 801 |
| 164 | food technology | 7 | 757 | 2044 | 934 |
| 164 | mathematical analysis | 82 | 757 | 399 | 558 |
| 166 | Sonochemistry | 16 | 754 | 128 | 157 |
| 167 | Marine Pollution | 23 | 737 | 329 | 434 |
| 168 | Biosensors | 4 | 731 | 1307 | 612 |
| 168 | Bioelectronics | 4 | 731 | 1110 | 545 |
| 170 | carbon monoxide | 16 | 729 | 32 | 40 |
| 171 | natural disasters | 20 | 715 | 338 | 332 |
| 172 | miniaturization | 13 | 697 | 1000 | 985 |
| 173 | eye | 7 | 694 | 99 | 166 |
| 174 | Land use | 24 | 692 | 250 | 288 |
| 175 | Plant physiology | 21 | 689 | 919 | 1111 |
| 175 | Organometallic compounds | 22 | 689 | 413 | 374 |
| 177 | Toxicology | 32 | 678 | 1855 | 2414 |
| 178 | Mineral resources | 4 | 663 | 491 | 102 |
| 179 | Earthquake Engineering | 30 | 662 | 365 | 466 |
| 180 | Retina | 3 | 661 | 178 | 165 |
| 181 | city planning | 32 | 658 | 377 | 447 |
| 182 | Microorganisms | 9 | 657 | 762 | 654 |
| 183 | Ecosystem management | 13 | 654 | 277 | 214 |
| 184 | Microelectronics | 11 | 627 | 1152 | 915 |
| 185 | environmental indicators | 15 | 623 | 377 | 365 |
| 186 | Nanostructures | 8 | 617 | 1606 | 992 |
| 187 | Behavior | 18 | 615 | 1578 | 1839 |
| 188 | Sociology | 65 | 613 | 530 | 1112 |
| 189 | Entrepreneurship | 11 | 608 | 460 | 477 |
| 190 | Anatomy | 24 | 601 | 812 | 973 |
| 191 | energy conservation | 13 | 600 | 888 | 880 |
| 192 | Educational Technology | 18 | 585 | 514 | 378 |
| 193 | Rock Mechanics | 15 | 584 | 370 | 338 |
| 194 | Plants | 42 | 578 | 518 | 1155 |
| 195 | Welfare Economics | 21 | 577 | 81 | 128 |
| 196 | Restoration Ecology | 12 | 576 | 159 | 120 |
| 197 | Nursing | 51 | 572 | 285 | 435 |
| 198 | Geodynamics | 17 | 561 | 358 | 386 |
| 199 | Biomass Energy | 12 | 558 | 1423 | 1362 |
| 200 | Archaeology | 64 | 551 | 209 | 423 |
| 201 | Zoology | 36 | 542 | 842 | 996 |
| 202 | Developmental Biology | 8 | 541 | 1635 | 1405 |
| 203 | Teaching | 30 | 538 | 437 | 479 |
| 204 | human behavior | 15 | 536 | 1219 | 1600 |
| 205 | Calorimetry | 17 | 534 | 355 | 187 |
| 205 | Thermal analysis | 17 | 534 | 355 | 187 |
| 207 | Statistics | 22 | 530 | 1193 | 1051 |
| 208 | Pediatrics | 3 | 529 | 3386 | 1655 |
| 209 | Conservation Biology | 17 | 528 | 454 | 575 |
| 210 | Quantum Gravity | 26 | 527 | 1050 | 1146 |
| 211 | marketing | 20 | 526 | 729 | 859 |
| 212 | Biogeography | 12 | 524 | 549 | 687 |
| 213 | economic policy | 28 | 519 | 770 | 686 |
| 214 | Structural Engineering | 23 | 518 | 603 | 578 |
| 215 | health planning | 41 | 515 | 397 | 657 |
| 216 | biological evolution | 25 | 514 | 805 | 1370 |
| 217 | Pharmacology | 18 | 511 | 3166 | 3300 |
| 217 | Paleoecology | 17 | 511 | 444 | 484 |
| 217 | Electronics | 19 | 511 | 1791 | 1339 |
| 220 | Diagnostic Imaging | 5 | 508 | 2109 | 953 |
| 221 | Nonlinear Dynamics | 25 | 505 | 918 | 1034 |
| 221 | Food | 15 | 505 | 1666 | 1597 |
| 223 | energy resources | 3 | 499 | 1565 | 930 |
| 224 | synthesis | 26 | 492 | 193 | 141 |
| 225 | Social Choice Theory | 20 | 491 | 25 | 19 |
| 226 | Embryology | 5 | 485 | 1590 | 1157 |
| 226 | Extreme environments | 15 | 485 | 36 | 60 |
| 228 | Ocean Engineering | 25 | 480 | 561 | 716 |
| 229 | Paleoclimatology | 16 | 478 | 511 | 589 |
| 230 | Chemical analysis | 14 | 476 | 535 | 435 |
| 231 | Paleogeography | 14 | 472 | 445 | 470 |
| 232 | Plant diseases | 13 | 471 | 1128 | 866 |
| 233 | Health Policy | 17 | 470 | 1088 | 1121 |
| 234 | Robotics | 31 | 467 | 405 | 613 |
| 234 | Educational Psychology | 26 | 467 | 445 | 604 |
| 234 | Infertility | 7 | 467 | 948 | 664 |
| 234 | fertility | 7 | 467 | 1008 | 706 |
| 238 | Soil biology | 9 | 461 | 602 | 647 |
| 239 | Organometallic chemistry | 22 | 459 | 680 | 617 |
| 240 | Public Policy | 19 | 457 | 640 | 763 |
| 241 | Plant cells | 7 | 450 | 918 | 1100 |
| 242 | Cell differentiation | 2 | 448 | 2581 | 1441 |
| 242 | Growth | 2 | 448 | 1762 | 991 |
| 244 | Latin America | 101 | 447 | 116 | 178 |
| 244 | Nervous system | 8 | 447 | 1997 | 1773 |
| 246 | Neural circuitry | 38 | 445 | 353 | 904 |
| 247 | Economic Development | 14 | 444 | 796 | 927 |
| 248 | Sports Medicine | 34 | 430 | 818 | 1187 |
| 249 | Economic History | 65 | 427 | 666 | 1285 |
| 250 | Soil Mechanics | 12 | 423 | 591 | 549 |
| 251 | Adsorption | 14 | 416 | 30 | 35 |
| 252 | Total Quality Management | 12 | 413 | 116 | 78 |
| 253 | Production Engineering | 27 | 412 | 578 | 681 |
| 253 | Sports | 24 | 412 | 806 | 919 |
| 255 | Small Business | 6 | 410 | 555 | 540 |
| 256 | Immunology | 11 | 408 | 2834 | 2935 |
| 257 | Primary health care | 12 | 407 | 997 | 747 |
| 258 | nanoscience | 12 | 401 | 1786 | 1974 |
| 259 | Semiconductors | 8 | 399 | 1501 | 754 |
| 260 | Landslides | 11 | 396 | 75 | 115 |
| 261 | Solar Energy | 10 | 395 | 992 | 940 |
| 261 | Asia | 6 | 395 | 2412 | 813 |
| 263 | Demography | 5 | 394 | 597 | 317 |
| 264 | Catalysts | 18 | 391 | 161 | 223 |
| 265 | Mining Engineering | 7 | 382 | 345 | 215 |
| 265 | Meteorology | 24 | 382 | 953 | 1729 |
| 267 | Social Change | 12 | 381 | 390 | 588 |
| 268 | health services accessibility | 12 | 379 | 430 | 380 |
| 269 | Political Science | 12 | 377 | 1055 | 670 |
| 270 | Linguistics | 78 | 374 | 176 | 518 |
| 271 | Health | 18 | 371 | 1044 | 1266 |
| 272 | Aquatic ecology | 7 | 370 | 724 | 430 |
| 273 | Quality Control | 10 | 364 | 988 | 798 |
| 274 | System analysis | 22 | 360 | 904 | 1091 |
| 274 | color | 20 | 360 | 31 | 51 |
| 276 | Health Services Research | 8 | 358 | 1289 | 886 |
| 277 | Magnetic Materials | 13 | 357 | 791 | 799 |
| 278 | Communication | 59 | 348 | 330 | 844 |
| 279 | Diabetes mellitus | 10 | 345 | 1547 | 1878 |
| 280 | Telecommunication | 14 | 343 | 1121 | 796 |
| 281 | Learning disabilities | 8 | 334 | 527 | 339 |
| 282 | Socioeconomic Factors | 11 | 332 | 334 | 334 |
| 283 | Diabetes | 9 | 331 | 1702 | 1980 |
| 284 | Intellectual disability | 9 | 330 | 516 | 411 |
| 285 | Labor Economics | 5 | 328 | 392 | 221 |
| 286 | Urban Policy | 12 | 326 | 282 | 352 |
| 286 | commerce | 20 | 326 | 485 | 808 |
| 288 | Aging | 13 | 322 | 1816 | 1853 |
| 289 | International Finance | 18 | 320 | 621 | 820 |
| 290 | Medical genetics | 5 | 319 | 2929 | 2716 |
| 291 | plant molecular biology | 8 | 316 | 1072 | 1365 |
| 292 | Computational Biology | 16 | 314 | 1455 | 1979 |
| 293 | Coastal zone management | 18 | 312 | 146 | 295 |
| 294 | Systems Analysis | 13 | 308 | 458 | 415 |
| 295 | Molecular Genetics | 10 | 307 | 1411 | 1571 |
| 296 | Cell Biology | 10 | 305 | 3181 | 3872 |
| 297 | Radiation | 11 | 302 | 1377 | 1148 |
| 298 | clay | 8 | 300 | 439 | 489 |
| 299 | Molecules | 27 | 297 | 524 | 794 |
| 300 | Medical Anthropology | 19 | 295 | 460 | 1068 |
| 300 | Exercise | 17 | 295 | 530 | 634 |
| 300 | Chronic diseases | 3 | 295 | 890 | 620 |
| 303 | Lightweight concrete | 3 | 289 | 433 | 363 |
| 304 | Dermatology | 4 | 288 | 2032 | 1225 |
| 305 | Animal ecology | 13 | 285 | 635 | 760 |
| 306 | Vision | 11 | 280 | 352 | 470 |
| 307 | Developmental Disabilities | 5 | 278 | 915 | 744 |
| 308 | Marine resources | 16 | 275 | 171 | 329 |
| 309 | Surgery | 2 | 272 | 3141 | 2052 |
| 310 | Psychophysiology | 8 | 271 | 2293 | 2376 |
| 311 | Land Use Planning | 6 | 268 | 230 | 231 |
| 312 | Thin Films | 9 | 267 | 274 | 172 |
| 313 | Cancer | 9 | 266 | 2967 | 3283 |
| 314 | Human-Computer Interaction | 13 | 265 | 635 | 807 |
| 314 | Cognitive Science | 3 | 265 | 1795 | 1050 |
| 316 | Cytology | 11 | 263 | 3214 | 4108 |
| 317 | Water quality management | 17 | 259 | 733 | 947 |
| 318 | reforestation | 5 | 258 | 109 | 51 |
| 318 | afforestation | 5 | 258 | 109 | 51 |
| 320 | Bacteriology | 6 | 257 | 1773 | 1848 |
| 321 | Engineering | 19 | 256 | 2127 | 2339 |
| 321 | Mental Disorders | 11 | 256 | 2144 | 2660 |
| 321 | Electrophoresis | 8 | 256 | 1226 | 1107 |
| 321 | United Kingdom | 10 | 256 | 1074 | 1370 |
| 325 | emergency management | 8 | 255 | 482 | 408 |
| 325 | Radiation effects | 6 | 255 | 432 | 420 |
| 327 | solar power | 3 | 254 | 960 | 630 |
| 327 | solar cells | 3 | 254 | 1079 | 704 |
| 329 | violence | 21 | 253 | 288 | 582 |
| 330 | Japan | 12 | 250 | 1193 | 942 |
| 331 | Calculus of Variations | 24 | 248 | 92 | 175 |
| 332 | Plastics | 7 | 242 | 1296 | 919 |
| 332 | biological invasions | 7 | 242 | 414 | 404 |
| 334 | Numerical Analysis | 27 | 240 | 806 | 1161 |
| 335 | Molecular ecology | 4 | 238 | 1156 | 1149 |
| 336 | Interfaces | 13 | 237 | 59 | 90 |
| 337 | preventive medicine | 9 | 235 | 917 | 1125 |
| 337 | Soil ecology | 6 | 235 | 595 | 618 |
| 339 | Photonics | 10 | 234 | 1114 | 1437 |
| 339 | Quantum Optics | 8 | 234 | 603 | 477 |
| 339 | Laser Spectroscopy | 8 | 234 | 562 | 431 |
| 339 | enzymes | 14 | 234 | 746 | 1211 |
| 343 | Process Control | 4 | 231 | 836 | 800 |
| 344 | Strategic planning | 9 | 228 | 372 | 432 |
| 345 | Nonlinear functional analysis | 6 | 227 | 903 | 578 |
| 345 | software | 10 | 227 | 421 | 671 |
| 347 | Obstetrics | 14 | 226 | 1595 | 1940 |
| 347 | Agriculture | 18 | 226 | 999 | 1631 |
| 349 | ethnicity | 8 | 225 | 407 | 227 |
| 350 | Developing countries | 19 | 224 | 911 | 1580 |
| 351 | bioclimatology | 5 | 223 | 795 | 530 |
| 351 | Environmental pollutants | 6 | 223 | 1982 | 1860 |
| 353 | Ecological Engineering | 6 | 221 | 447 | 513 |
| 354 | social science | 2 | 220 | 239 | 119 |
| 355 | pollutants | 5 | 219 | 1796 | 1641 |
| 356 | actuators | 8 | 217 | 1618 | 1839 |
| 356 | transducers | 8 | 217 | 1618 | 1839 |
| 358 | Australia | 17 | 215 | 790 | 1076 |
| 359 | health and race | 4 | 211 | 219 | 106 |
| 359 | ethnic groups | 4 | 211 | 300 | 139 |
| 361 | Quantum Chemistry | 18 | 209 | 295 | 403 |
| 361 | Research Design | 8 | 209 | 866 | 973 |
| 361 | computer networks | 14 | 209 | 1219 | 1534 |
| 364 | Medical Microbiology | 7 | 208 | 2020 | 2513 |
| 364 | Plant Morphology | 11 | 208 | 241 | 283 |
| 364 | infection | 6 | 208 | 1551 | 1582 |
| 367 | Post-traumatic stress disorder | 4 | 207 | 761 | 621 |
| 368 | soil conservation | 7 | 206 | 491 | 517 |
| 368 | land degradation | 7 | 206 | 250 | 314 |
| 368 | Porous materials | 2 | 206 | 1095 | 290 |
| 368 | degradation | 7 | 206 | 250 | 314 |
| 372 | Endocrinology | 8 | 205 | 2674 | 3210 |
| 372 | Fractals | 12 | 205 | 539 | 667 |
| 372 | atmosphere | 10 | 205 | 417 | 590 |
| 375 | personality | 7 | 204 | 1008 | 1215 |
| 376 | Industrial Policy | 8 | 203 | 261 | 313 |
| 377 | polar regions | 5 | 202 | 615 | 437 |
| 377 | Diet | 8 | 202 | 1676 | 2203 |
| 379 | Neurobiology | 5 | 201 | 1799 | 1951 |
| 379 | Waste management | 12 | 201 | 684 | 804 |
| 379 | fuel cells | 6 | 201 | 1037 | 1188 |
| 382 | Industrial Organization | 7 | 200 | 167 | 183 |
| 382 | Obesity | 3 | 200 | 2605 | 2097 |
| 384 | Cytogenetics | 3 | 199 | 2043 | 1849 |
| 384 | Biogeochemistry | 6 | 199 | 939 | 1146 |
| 384 | Food additives | 4 | 199 | 1225 | 1033 |
| 384 | Travel | 9 | 199 | 477 | 438 |
| 384 | Physical fitness | 9 | 199 | 667 | 799 |
| 389 | Radiobiology | 5 | 197 | 1880 | 1382 |
| 389 | Business Ethics | 4 | 197 | 844 | 923 |
| 389 | water supply | 2 | 197 | 1360 | 857 |
| 392 | Solitons | 9 | 196 | 560 | 621 |
| 392 | Chaos | 9 | 196 | 560 | 621 |
| 392 | Europa | 5 | 196 | 411 | 319 |
| 395 | Animal Behavior | 8 | 194 | 1430 | 1878 |
| 395 | Population Genetics | 4 | 194 | 1299 | 1259 |
| 397 | Rheumatology | 2 | 192 | 1936 | 1254 |
| 397 | History of Medicine | 17 | 192 | 159 | 88 |
| 399 | Health Education | 20 | 191 | 774 | 1389 |
| 399 | biological factors | 3 | 191 | 2361 | 1496 |
| 399 | place marketing | 6 | 191 | 35 | 82 |
| 402 | Genomics | 6 | 190 | 3143 | 3227 |
| 403 | Microscopy | 6 | 189 | 1450 | 978 |
| 404 | Bone diseases | 1 | 188 | 1110 | 555 |
| 405 | Marine Geology | 13 | 187 | 233 | 407 |
| 406 | Infections | 3 | 186 | 1562 | 1377 |
| 406 | Production Management | 2 | 186 | 1464 | 1099 |
| 406 | Hospitality industry | 7 | 186 | 192 | 191 |
| 406 | Crystal growth | 4 | 186 | 1045 | 747 |
| 410 | Neuropsychology | 5 | 185 | 2245 | 2031 |
| 411 | Data Mining | 10 | 184 | 885 | 1415 |
| 411 | Child Development | 10 | 184 | 1315 | 1775 |
| 413 | Mass Media | 42 | 183 | 126 | 250 |
| 414 | Audiology | 7 | 182 | 654 | 662 |
| 414 | Seismology | 7 | 182 | 388 | 384 |
| 414 | Computational Linguistics | 6 | 182 | 355 | 140 |
| 414 | Simulation Methods | 17 | 182 | 231 | 501 |
| 414 | Visual Perception | 6 | 182 | 1670 | 1678 |
| 414 | Chemical industry | 9 | 182 | 870 | 743 |
| 414 | Memory | 6 | 182 | 1799 | 1864 |
| 414 | Attention | 6 | 182 | 1728 | 1726 |
| 414 | Perception | 6 | 182 | 1847 | 1839 |
| 423 | Greenhouse gases | 5 | 181 | 267 | 321 |
| 423 | Information society | 9 | 181 | 28 | 46 |
| 425 | Remote Sensing | 21 | 180 | 444 | 771 |
| 425 | Forecasting | 10 | 180 | 201 | 341 |
| 427 | Corporate Social Responsibility | 5 | 179 | 151 | 275 |
| 427 | environmental auditing | 5 | 179 | 161 | 277 |
| 429 | Psychiatry | 8 | 176 | 3667 | 4181 |
| 429 | Biomass | 5 | 176 | 492 | 687 |
| 431 | Distance Education | 6 | 174 | 282 | 232 |
| 432 | Fishery management | 10 | 173 | 502 | 596 |
| 433 | Sedimentology | 3 | 172 | 732 | 497 |
| 434 | Soil dynamics | 8 | 170 | 267 | 326 |
| 434 | Fishery resources | 11 | 170 | 280 | 507 |
| 436 | Housing | 24 | 169 | 62 | 346 |
| 436 | Neurons | 2 | 169 | 1036 | 1401 |
| 436 | Virulence | 2 | 169 | 1762 | 1696 |
| 439 | Phylogeny | 9 | 168 | 531 | 961 |
| 440 | Virtual reality | 6 | 167 | 218 | 206 |
| 440 | Inflammation | 3 | 167 | 1626 | 1401 |
| 442 | Ceramic materials | 8 | 166 | 893 | 976 |
| 442 | Transport | 10 | 166 | 306 | 571 |
| 442 | Sea | 10 | 166 | 264 | 481 |
| 445 | Anthropology | 12 | 164 | 971 | 1027 |
| 445 | Requirements Engineering | 2 | 164 | 102 | 53 |
| 447 | Computer Graphics | 9 | 162 | 1068 | 1193 |
| 448 | Ichthyology | 8 | 161 | 260 | 195 |
| 448 | Radio wave propagation | 6 | 161 | 619 | 396 |
| 448 | Fish | 8 | 161 | 191 | 172 |
| 451 | Social Psychology | 9 | 160 | 1368 | 1858 |
| 451 | Analytical Biochemistry | 8 | 160 | 1290 | 1554 |
| 453 | Geriatrics | 7 | 158 | 2661 | 2626 |
| 453 | Epigenetics | 7 | 158 | 86 | 99 |
| 453 | Epigenomics | 7 | 158 | 83 | 97 |
| 453 | Eating Disorders | 3 | 158 | 1060 | 801 |
| 457 | Library Science | 10 | 157 | 691 | 389 |
| 458 | Pathology | 8 | 156 | 1988 | 2585 |
| 458 | organization | 4 | 156 | 729 | 740 |
| 458 | Vaccines | 6 | 156 | 1672 | 1834 |
| 461 | Global Health | 10 | 155 | 570 | 671 |
| 461 | Physical Geography | 8 | 155 | 318 | 344 |
| 461 | Petroleum Geology | 8 | 155 | 336 | 459 |
| 461 | Health promotion | 11 | 155 | 864 | 1374 |
| 465 | Proteomics | 3 | 154 | 1472 | 1286 |
| 465 | Reproduction | 9 | 154 | 1813 | 2193 |
| 465 | weather | 3 | 154 | 673 | 471 |
| 468 | Information Systems | 7 | 153 | 1041 | 1177 |
| 468 | Human Resources | 4 | 153 | 380 | 423 |
| 470 | Metallography | 2 | 152 | 1190 | 608 |
| 471 | Systems Biology | 9 | 150 | 1063 | 1482 |
| 472 | Functional Analysis | 11 | 148 | 754 | 830 |
| 472 | Bioenergetics | 5 | 148 | 756 | 876 |
| 474 | Ion Exchange | 9 | 147 | 65 | 79 |
| 474 | Solvent extraction | 9 | 147 | 65 | 79 |
| 476 | Health Information Management | 3 | 146 | 326 | 553 |
| 476 | Agricultural Ecology | 6 | 146 | 884 | 1336 |
| 476 | Control Theory | 7 | 146 | 1289 | 1104 |
| 476 | Child | 6 | 146 | 2370 | 2235 |
| 476 | Inclusive Education | 3 | 146 | 161 | 88 |
| 476 | Integration | 3 | 146 | 155 | 86 |
| 482 | electrocatalysis | 10 | 145 | 16 | 41 |
| 483 | Plant tissue culture | 8 | 144 | 444 | 656 |
| 483 | China | 16 | 144 | 1382 | 2336 |
| 483 | Microstructure | 2 | 144 | 1309 | 435 |
| 486 | economic forecasting | 5 | 143 | 223 | 306 |
| 486 | Geodesy | 10 | 143 | 333 | 549 |
| 486 | Methodology | 3 | 143 | 540 | 218 |
| 489 | mycoses | 3 | 142 | 1096 | 1219 |
| 490 | Hydrogeology | 5 | 141 | 574 | 514 |
| 490 | Climate | 2 | 141 | 919 | 591 |
| 490 | proteins | 8 | 141 | 1709 | 2129 |
| 493 | Landscape Ecology | 6 | 140 | 332 | 514 |
| 493 | Telecommunications | 2 | 140 | 1203 | 389 |
| 493 | Plant cell culture | 4 | 140 | 652 | 661 |
| 496 | Computational Chemistry | 12 | 139 | 285 | 668 |
| 497 | Sites | 2 | 137 | 807 | 628 |
| 498 | Kinesiology | 8 | 135 | 56 | 76 |
| 498 | Fluid Mechanics | 8 | 135 | 1272 | 1367 |
| 498 | Kinetics | 8 | 135 | 264 | 326 |
| 498 | Plant Biotechnology | 3 | 135 | 951 | 808 |
| 498 | Ethology | 5 | 135 | 1437 | 1898 |
| 498 | sustainability | 5 | 135 | 649 | 990 |
| 498 | Pancreatic diseases | 13 | 135 | 254 | 338 |
| 505 | natural products | 3 | 134 | 2115 | 1411 |
| 505 | Quality of life | 12 | 134 | 738 | 1707 |
| 507 | Engineering Mathematics | 15 | 132 | 1239 | 1592 |
| 507 | RNA | 1 | 132 | 1082 | 658 |
| 507 | women | 14 | 132 | 274 | 388 |
| 510 | Women's health | 12 | 127 | 654 | 1203 |
| 511 | sex crimes | 14 | 126 | 232 | 528 |
| 512 | Experimental Design | 1 | 125 | 613 | 286 |
| 512 | Commercial real estate | 20 | 125 | 3 | 14 |
| 514 | Medical Physics | 3 | 123 | 2097 | 1620 |
| 514 | complementary therapies | 7 | 123 | 1545 | 1844 |
| 514 | Continental shelf | 1 | 123 | 779 | 449 |
| 517 | Chemical kinetics | 8 | 122 | 426 | 350 |
| 518 | freshwater biology | 3 | 121 | 1121 | 888 |
| 519 | Mathematics Education | 4 | 120 | 441 | 247 |
| 519 | Africa | 7 | 120 | 1231 | 1001 |
| 521 | Public Relations | 3 | 119 | 522 | 283 |
| 521 | Thermodynamics | 11 | 119 | 592 | 723 |
| 521 | Thermochemistry | 11 | 119 | 247 | 409 |
| 524 | Urban Economics | 3 | 118 | 388 | 428 |
| 524 | Ceramics | 7 | 118 | 1189 | 1325 |
| 524 | Alternative Medicine | 5 | 118 | 1749 | 1816 |
| 524 | Mass Spectrometry | 2 | 118 | 1824 | 1229 |
| 528 | Solar System | 6 | 117 | 722 | 885 |
| 529 | Oncology | 3 | 116 | 2921 | 3329 |
| 529 | Bioinformatics | 5 | 116 | 2079 | 2376 |
| 529 | data collection | 7 | 116 | 734 | 1341 |
| 529 | genome | 5 | 116 | 1630 | 2425 |
| 533 | innovation | 2 | 115 | 862 | 804 |
| 533 | Bacterial infections | 4 | 115 | 981 | 1373 |
| 535 | Arthropods | 5 | 114 | 151 | 114 |
| 536 | Transportation | 6 | 113 | 1334 | 1563 |
| 536 | Digital humanities | 8 | 113 | 20 | 47 |
| 538 | Venture Capital | 2 | 112 | 394 | 515 |
| 538 | Recycling | 3 | 112 | 660 | 1040 |
| 540 | Rock deformation | 6 | 111 | 129 | 217 |
| 541 | Municipal Engineering | 6 | 110 | 194 | 291 |
| 541 | Multivariate Analysis | 1 | 110 | 931 | 401 |
| 543 | Economic Geography | 2 | 109 | 522 | 309 |
| 543 | Disability Law | 1 | 109 | 363 | 125 |
| 543 | Proteome | 6 | 109 | 1034 | 1655 |
| 543 | Astrocytes | 2 | 109 | 734 | 845 |
| 543 | Respiration | 2 | 109 | 2277 | 1887 |
| 543 | Steroids | 2 | 109 | 1545 | 1150 |
| 549 | Nanochemistry | 5 | 108 | 1056 | 1065 |
| 549 | Cosmochemistry | 1 | 108 | 1692 | 1062 |
| 551 | Public Administration | 5 | 107 | 1291 | 1019 |
| 551 | food contamination | 3 | 107 | 1315 | 893 |
| 551 | Middle East | 5 | 107 | 834 | 557 |
| 551 | Social work | 11 | 107 | 804 | 1091 |
| 555 | Nondestructive testing | 6 | 106 | 502 | 559 |
| 555 | Celestial Mechanics | 9 | 106 | 89 | 141 |
| 555 | drug therapy | 4 | 106 | 2769 | 2919 |
| 558 | Medical Technology | 4 | 105 | 2030 | 2058 |
| 558 | Nonparametric Statistics | 2 | 105 | 243 | 54 |
| 558 | hydrocolloids | 2 | 105 | 866 | 944 |
| 561 | Geographic information systems | 9 | 104 | 600 | 831 |
| 562 | Photochemistry | 6 | 103 | 1531 | 1935 |
| 562 | pain | 4 | 103 | 1581 | 1810 |
| 564 | individual differences | 3 | 102 | 279 | 335 |
| 564 | Glass | 5 | 102 | 1090 | 1273 |
| 564 | pottery | 5 | 102 | 1023 | 1246 |
| 567 | symbiosis | 1 | 101 | 394 | 96 |
| 567 | Computational Intelligence | 9 | 101 | 408 | 672 |
| 567 | Fracture mechanics | 6 | 101 | 1171 | 1356 |
| 567 | medical education | 6 | 101 | 1712 | 1891 |
| 571 | Communication Policy | 1 | 99 | 210 | 81 |
| 571 | Telecommunication Policy | 1 | 99 | 210 | 81 |
| 571 | taxation | 4 | 99 | 194 | 203 |
| 571 | Magnetic Resonance Spectroscopy | 12 | 99 | 726 | 1173 |
| 571 | Plasma polymerization | 4 | 99 | 244 | 267 |
| 576 | Pharmacognosy | 4 | 98 | 1923 | 2336 |
| 576 | hazard mitigation | 7 | 98 | 568 | 1008 |
| 578 | family violence | 5 | 97 | 340 | 498 |
| 578 | child abuse | 5 | 97 | 738 | 1082 |
| 580 | Energy Storage | 5 | 96 | 1124 | 1349 |
| 581 | Chemotherapy | 2 | 95 | 2411 | 1958 |
| 581 | Multimedia Systems | 13 | 95 | 738 | 1247 |
| 583 | Development Economics | 4 | 94 | 414 | 469 |
| 583 | Signal Processing | 5 | 94 | 1797 | 1814 |
| 585 | Automation | 8 | 93 | 1301 | 1832 |
| 585 | Entropy | 4 | 93 | 1075 | 819 |
| 585 | Host-parasite interactions | 1 | 93 | 2507 | 2248 |
| 585 | Immunity | 1 | 93 | 3563 | 3206 |
| 589 | Microeconomics | 3 | 92 | 397 | 347 |
| 589 | Biological Systems | 13 | 92 | 207 | 752 |
| 589 | Public Finance | 6 | 92 | 66 | 64 |
| 589 | Wildlife management | 4 | 92 | 619 | 534 |
| 589 | Planets | 5 | 92 | 1489 | 2101 |
| 594 | Water Purification | 6 | 91 | 865 | 1119 |
| 595 | Environmental Law | 2 | 90 | 1710 | 1936 |
| 596 | Population | 8 | 89 | 669 | 1120 |
| 596 | population geography | 1 | 89 | 823 | 396 |
| 598 | urban population | 2 | 87 | 324 | 400 |
| 599 | Paleontology | 17 | 86 | 626 | 1288 |
| 599 | Combustion | 1 | 86 | 2201 | 1390 |
| 599 | Antioxidants | 3 | 86 | 944 | 1362 |
| 599 | Investment analysis | 8 | 86 | 400 | 818 |
| 599 | Therapeutics | 5 | 86 | 1853 | 2699 |
| 599 | free radicals | 3 | 86 | 1830 | 2216 |
| 599 | vitamin C | 3 | 86 | 462 | 649 |
| 599 | vitamin E | 3 | 86 | 462 | 649 |
| 607 | Environmental Toxicology | 4 | 85 | 2639 | 3498 |
| 607 | Serology | 2 | 85 | 826 | 586 |
| 607 | Liposomes | 3 | 85 | 641 | 672 |
| 607 | Lipid bilayers | 3 | 85 | 519 | 554 |
| 607 | Personality Assessment | 5 | 85 | 479 | 756 |
| 607 | Fuzzy systems | 9 | 85 | 972 | 1333 |
| 613 | Radiology | 3 | 84 | 2185 | 1643 |
| 614 | Nuclear Engineering | 8 | 83 | 910 | 990 |
| 615 | Pediatric Neurology | 1 | 82 | 2079 | 2057 |
| 615 | Risk Management | 2 | 82 | 1132 | 856 |
| 615 | Nutrition physiology | 6 | 82 | 574 | 1053 |
| 615 | Expert Systems | 4 | 82 | 118 | 154 |
| 615 | Reproductive health | 6 | 82 | 612 | 967 |
| 615 | Cell death | 3 | 82 | 1507 | 1998 |
| 621 | Human evolution | 6 | 81 | 334 | 618 |
| 621 | Urbanization | 19 | 81 | 25 | 159 |
| 621 | industrial relations | 6 | 81 | 633 | 740 |
| 624 | Mobile Computing | 3 | 80 | 1336 | 944 |
| 624 | school sports | 2 | 80 | 172 | 135 |
| 624 | Pregnancy | 4 | 80 | 892 | 1056 |
| 627 | Morphology | 16 | 79 | 297 | 812 |
| 627 | Plasma chemistry | 6 | 79 | 279 | 450 |
| 627 | Chromatography | 4 | 79 | 1779 | 1912 |
| 627 | Hormones | 2 | 79 | 2005 | 1923 |
| 627 | Earthquakes | 4 | 79 | 391 | 372 |
| 627 | Chromatographic analysis | 4 | 79 | 2063 | 2087 |
| 633 | Computational Complexity | 9 | 78 | 551 | 818 |
| 633 | Groundwater | 6 | 78 | 552 | 799 |
| 635 | Marine biodiversity | 6 | 77 | 187 | 183 |
| 635 | philology | 37 | 77 | 126 | 85 |
| 635 | Social behavior | 6 | 77 | 929 | 1497 |
| 638 | Ultrasound | 2 | 76 | 837 | 716 |
| 639 | Humanities | 22 | 75 | 464 | 1203 |
| 639 | rehabilitation | 6 | 75 | 1988 | 2851 |
| 641 | Mineralogy | 7 | 74 | 1080 | 1528 |
| 642 | Metabolism | 7 | 73 | 2544 | 4337 |
| 642 | Plant Taxonomy | 27 | 73 | 94 | 512 |
| 644 | Horticulture | 3 | 72 | 928 | 814 |
| 644 | Mathematical Physics | 8 | 72 | 2314 | 2596 |
| 644 | Real-time Data Processing | 3 | 72 | 120 | 124 |
| 644 | Metabolic diseases | 5 | 72 | 2523 | 3815 |
| 648 | Plant genetic engineering | 5 | 71 | 867 | 1434 |
| 649 | Natural resources | 1 | 69 | 1551 | 1101 |
| 649 | Contraception | 3 | 69 | 743 | 871 |
| 649 | nuclear magnetic resonance spectroscopy | 9 | 69 | 490 | 818 |
| 649 | France | 3 | 69 | 520 | 272 |
| 649 | Ultrasonic Imaging | 1 | 69 | 1114 | 689 |
| 649 | Mental illness | 3 | 69 | 2692 | 3241 |
| 649 | NMR | 9 | 69 | 283 | 526 |
| 649 | magnetic resonance | 9 | 69 | 294 | 548 |
| 649 | Birth control | 3 | 69 | 535 | 698 |
| 658 | Agricultural Science | 2 | 68 | 333 | 499 |
| 658 | Clinical Chemistry | 4 | 68 | 3393 | 4242 |
| 660 | Structural dynamics | 2 | 67 | 1432 | 1485 |
| 660 | Cosmology | 9 | 67 | 983 | 1254 |
| 660 | Gerontology | 4 | 67 | 2177 | 2237 |
| 660 | Parasitology | 4 | 67 | 2652 | 2995 |
| 660 | animals | 6 | 67 | 1059 | 1374 |
| 660 | ecotourism | 3 | 67 | 241 | 330 |
| 666 | Southern states | 3 | 66 | 369 | 225 |
| 667 | Systems Engineering | 4 | 65 | 2225 | 2144 |
| 667 | microwave antennas | 3 | 65 | 496 | 383 |
| 667 | Imaging systems | 4 | 65 | 734 | 656 |
| 667 | Agricultural systems | 2 | 65 | 477 | 635 |
| 667 | Microwaves | 5 | 65 | 1027 | 865 |
| 672 | Histology | 4 | 64 | 2083 | 2812 |
| 672 | Clinical Immunology | 4 | 64 | 1522 | 1971 |
| 672 | poverty | 3 | 64 | 455 | 562 |
| 672 | Anxiety Disorders | 2 | 64 | 809 | 1072 |
| 672 | Anxiety | 2 | 64 | 811 | 1067 |
| 672 | Graphene | 1 | 64 | 299 | 245 |
| 672 | Neuromuscular diseases | 2 | 64 | 1077 | 1079 |
| 672 | civilization | 84 | 64 | 94 | 400 |
| 672 | Muscles | 2 | 64 | 1396 | 1540 |
| 672 | optical devices | 4 | 64 | 457 | 537 |
| 672 | India | 3 | 64 | 2241 | 1128 |
| 683 | Pesticides | 3 | 63 | 793 | 832 |
| 684 | Public Health Administration | 4 | 62 | 395 | 378 |
| 684 | Educational Sociology | 2 | 62 | 507 | 369 |
| 684 | Measurement | 3 | 62 | 1489 | 1555 |
| 684 | Child welfare | 7 | 62 | 783 | 1414 |
| 684 | Autoantibodies | 1 | 62 | 1261 | 1112 |
| 684 | Autoimmunity | 1 | 62 | 1536 | 1449 |
| 684 | Chromosome mapping | 2 | 62 | 2915 | 3230 |
| 684 | international trade | 4 | 62 | 684 | 796 |
| 684 | income | 2 | 62 | 258 | 258 |
| 684 | Flood control | 2 | 62 | 407 | 294 |
| 684 | Input-output analysis | 2 | 62 | 385 | 371 |
| 684 | Wealth | 2 | 62 | 258 | 258 |
| 684 | Autoimmune diseases | 1 | 62 | 1377 | 1191 |
| 684 | Scanning electron microscopy | 1 | 62 | 456 | 170 |
| 684 | gene mapping | 2 | 62 | 3173 | 3569 |
| 699 | Ecological Genetics | 2 | 61 | 1006 | 766 |
| 699 | Music | 10 | 61 | 480 | 823 |
| 699 | Nanoparticles | 6 | 61 | 1593 | 2605 |
| 699 | Photobiology | 4 | 61 | 1460 | 1925 |
| 699 | body temperature | 3 | 61 | 534 | 635 |
| 699 | Investments | 4 | 61 | 536 | 575 |
| 699 | Cerebral cortex | 1 | 61 | 1680 | 1556 |
| 699 | Meteorites | 1 | 61 | 1579 | 1511 |
| 707 | Cybernetics | 15 | 60 | 549 | 1685 |
| 707 | Regional Economics | 5 | 60 | 349 | 526 |
| 707 | Computer-Aided Design | 3 | 60 | 1480 | 1563 |
| 707 | Medicinal plants | 3 | 60 | 1714 | 2286 |
| 707 | Semiotics | 6 | 60 | 223 | 156 |
| 712 | epilepsy | 1 | 59 | 2002 | 1444 |
| 712 | Parasitic Diseases | 3 | 59 | 2694 | 3120 |
| 712 | Financial Institutions | 1 | 59 | 852 | 521 |
| 715 | Feminism | 25 | 58 | 95 | 555 |
| 715 | Stress | 4 | 58 | 221 | 457 |
| 717 | Freeze-Drying | 2 | 57 | 814 | 609 |
| 717 | Hypothermia | 2 | 57 | 814 | 609 |
| 717 | Freeze Drying | 2 | 57 | 814 | 609 |
| 717 | Adolescent | 7 | 57 | 1795 | 2914 |
| 721 | Clinical Psychology | 2 | 56 | 2188 | 2459 |
| 721 | Heterocyclic compounds | 3 | 56 | 1220 | 983 |
| 723 | Raman spectroscopy | 1 | 55 | 1649 | 1156 |
| 723 | Semantic web | 2 | 55 | 240 | 210 |
| 723 | Lipids | 1 | 55 | 2661 | 2380 |
| 723 | Jurisprudence | 6 | 55 | 769 | 1137 |
| 723 | sexual behavior | 2 | 55 | 1019 | 1034 |
| 728 | Wireless Communication Systems | 3 | 54 | 2362 | 2111 |
| 728 | Biotransformation | 4 | 54 | 86 | 112 |
| 730 | feeding behavior | 5 | 53 | 684 | 1329 |
| 730 | Appetite | 5 | 53 | 587 | 1206 |
| 732 | Genetics | 5 | 52 | 4218 | 6360 |
| 732 | supercritical fluids | 3 | 52 | 422 | 680 |
| 734 | Computer Science | 4 | 51 | 2332 | 2445 |
| 734 | digital preservation | 5 | 51 | 36 | 115 |
| 734 | Public opinion | 2 | 51 | 609 | 654 |
| 737 | Applied Mathematics | 11 | 50 | 375 | 541 |
| 737 | Discourse Analysis | 6 | 50 | 248 | 460 |
| 737 | Detectors | 7 | 50 | 579 | 974 |
| 740 | Special Education | 4 | 49 | 791 | 879 |
| 740 | Applied Linguistics | 11 | 49 | 239 | 625 |
| 740 | Nuclear Fusion | 3 | 49 | 732 | 724 |
| 740 | Immunopathology | 2 | 49 | 2122 | 2380 |
| 740 | Sleep Disorders | 8 | 49 | 1376 | 2433 |
| 740 | Flood forecasting | 1 | 49 | 278 | 209 |
| 740 | Soil fertility | 2 | 49 | 510 | 744 |
| 740 | Family Therapy | 2 | 49 | 1080 | 930 |
| 740 | child mental health | 2 | 49 | 670 | 631 |
| 740 | carbonate rocks | 1 | 49 | 298 | 109 |
| 740 | fusion reactors | 3 | 49 | 550 | 461 |
| 740 | Sleep | 8 | 49 | 1375 | 2444 |
| 752 | Medical Laboratory Science | 4 | 47 | 2297 | 3656 |
| 752 | Industrial Microbiology | 3 | 47 | 2381 | 3450 |
| 752 | sedimentary basins | 2 | 47 | 290 | 389 |
| 752 | Energy metabolism | 1 | 47 | 1230 | 1094 |
| 752 | Social welfare | 5 | 47 | 467 | 798 |
| 752 | Globalization | 2 | 47 | 840 | 895 |
| 752 | Chemical processes | 3 | 47 | 759 | 843 |
| 752 | disabilities | 3 | 47 | 917 | 1177 |
| 752 | cell membrane | 1 | 47 | 1172 | 1048 |
| 761 | Chronobiology | 2 | 46 | 660 | 674 |
| 761 | Information Retrieval | 4 | 46 | 411 | 745 |
| 761 | Disability Studies | 3 | 46 | 331 | 339 |
| 761 | Sustainable agriculture | 3 | 46 | 883 | 1170 |
| 761 | Circadian rhythms | 2 | 46 | 461 | 599 |
| 761 | biological clocks | 2 | 46 | 660 | 674 |
| 761 | Cognitive neuroscience | 1 | 46 | 1753 | 1642 |
| 761 | Neuroplasticity | 1 | 46 | 876 | 722 |
| 761 | circadian rhythm | 2 | 46 | 660 | 674 |
| 761 | biological rhythms | 2 | 46 | 622 | 661 |
| 761 | human development | 1 | 46 | 1456 | 1280 |
| 772 | Civil Engineering | 6 | 45 | 1420 | 1703 |
| 772 | Electrical Engineering | 10 | 45 | 2426 | 3255 |
| 772 | Urology | 3 | 45 | 2411 | 2974 |
| 772 | infrared radiation | 2 | 45 | 931 | 787 |
| 772 | Edible plants | 2 | 45 | 338 | 524 |
| 772 | Human biology | 4 | 45 | 648 | 965 |
| 778 | Chemical Ecology | 4 | 44 | 544 | 1033 |
| 778 | Pharmaceutical Chemistry | 2 | 44 | 5482 | 5838 |
| 778 | Industrial Safety | 4 | 44 | 1221 | 1739 |
| 781 | Macroeconomics | 6 | 43 | 246 | 491 |
| 781 | Cardiovascular diseases | 1 | 43 | 3210 | 2484 |
| 781 | Vocational guidance | 2 | 43 | 1192 | 1321 |
| 781 | Documentation | 13 | 43 | 106 | 450 |
| 781 | Light | 3 | 43 | 1241 | 1959 |
| 781 | drugs | 2 | 43 | 3427 | 3660 |
| 787 | Mechatronics | 2 | 42 | 1027 | 1015 |
| 787 | Algebra | 8 | 42 | 1127 | 1264 |
| 787 | Crystallography | 5 | 42 | 1665 | 1694 |
| 787 | counseling | 4 | 42 | 1433 | 2095 |
| 787 | Enzyme | 2 | 42 | 730 | 1041 |
| 787 | Tropical Medicine | 6 | 42 | 1699 | 2910 |
| 787 | cardiac catheterization | 2 | 42 | 1321 | 1232 |
| 794 | Data Warehousing | 1 | 41 | 107 | 36 |
| 794 | curriculum evaluation | 2 | 41 | 470 | 520 |
| 794 | Economic planning | 4 | 41 | 430 | 851 |
| 797 | Journalism | 17 | 40 | 163 | 548 |
| 797 | Structural health monitoring | 1 | 40 | 447 | 412 |
| 797 | Combinatorial chemistry | 1 | 40 | 1827 | 1755 |
| 797 | nuclear astrophysics | 4 | 40 | 498 | 762 |
| 797 | structural stability | 1 | 40 | 912 | 730 |
| 797 | Regional Development | 2 | 40 | 372 | 473 |
| 797 | air quality | 1 | 40 | 653 | 459 |
| 797 | Hallucinogens | 1 | 40 | 436 | 378 |
| 797 | Development planning | 2 | 40 | 324 | 441 |
| 797 | drug abuse | 1 | 40 | 1437 | 1122 |
| 807 | Social policy | 8 | 39 | 656 | 1358 |
| 807 | Building | 2 | 39 | 931 | 778 |
| 807 | alcoholism | 3 | 39 | 1912 | 2641 |
| 810 | Bioethics | 2 | 38 | 1347 | 1290 |
| 810 | Virology | 2 | 38 | 4538 | 5670 |
| 810 | Medical Ethics | 2 | 38 | 1805 | 1651 |
| 810 | Environmental Geochemistry | 5 | 38 | 373 | 1002 |
| 810 | Substance Abuse | 2 | 38 | 2163 | 2407 |
| 810 | nursing ethics | 2 | 38 | 340 | 482 |
| 810 | Mobile Commerce | 2 | 38 | 531 | 238 |
| 810 | Beetles | 6 | 38 | 102 | 83 |
| 810 | urban forestry | 2 | 38 | 404 | 521 |
| 810 | drug addiction | 2 | 38 | 1758 | 2188 |
| 810 | Minerals | 5 | 38 | 640 | 1363 |
| 810 | bees | 2 | 38 | 580 | 608 |
| 822 | Gender Studies | 5 | 37 | 396 | 787 |
| 822 | Community Psychiatry | 2 | 37 | 1645 | 2060 |
| 822 | Neonatology | 5 | 37 | 560 | 1218 |
| 822 | Nuclear Chemistry | 2 | 37 | 1649 | 1411 |
| 822 | Behavioral research | 1 | 37 | 1193 | 694 |
| 822 | sexual orientation | 5 | 37 | 49 | 206 |
| 822 | Gender identity | 5 | 37 | 212 | 353 |
| 822 | lasers | 7 | 37 | 1484 | 2381 |
| 830 | Heat Exchangers | 2 | 36 | 1626 | 2236 |
| 830 | Safety management | 2 | 36 | 984 | 940 |
| 830 | Scandinavia | 2 | 36 | 940 | 1025 |
| 830 | migration policy | 3 | 36 | 233 | 424 |
| 830 | sports injuries | 1 | 36 | 1212 | 883 |
| 835 | Genetic engineering | 2 | 35 | 3296 | 4093 |
| 835 | Nonlinear mechanics | 3 | 35 | 457 | 668 |
| 837 | Psychiatric Nursing | 5 | 34 | 575 | 1104 |
| 837 | Viticulture | 1 | 34 | 287 | 242 |
| 837 | Evidence-Based Medicine | 3 | 34 | 1607 | 2254 |
| 837 | Bioinorganic chemistry | 3 | 34 | 1669 | 2365 |
| 837 | gene therapy | 1 | 34 | 2374 | 2475 |
| 837 | disease vectors | 1 | 34 | 1965 | 1938 |
| 837 | Wine | 1 | 34 | 120 | 77 |
| 837 | Parasites | 1 | 34 | 3013 | 2718 |
| 837 | Genetic therapy | 1 | 34 | 2533 | 2668 |
| 837 | Synapses | 1 | 34 | 624 | 664 |
| 837 | Aggression | 3 | 34 | 514 | 965 |
| 837 | Menopause | 1 | 34 | 738 | 654 |
| 849 | Emergency Medical Services | 1 | 33 | 1894 | 1493 |
| 849 | health behavior | 4 | 33 | 1049 | 2002 |
| 849 | income distribution | 2 | 33 | 216 | 341 |
| 849 | Critical theory | 1 | 33 | 379 | 207 |
| 849 | Radioisotopes | 3 | 33 | 1589 | 1767 |
| 849 | Digestive system diseases | 2 | 33 | 1521 | 1922 |
| 855 | Molecular cloning | 1 | 32 | 2929 | 2790 |
| 855 | Marine Geophysics | 5 | 32 | 182 | 439 |
| 855 | Genetic recombination | 1 | 32 | 2880 | 2747 |
| 855 | Marine mineral resources | 5 | 32 | 90 | 218 |
| 855 | Food Security | 1 | 32 | 416 | 480 |
| 855 | immigration | 1 | 32 | 451 | 432 |
| 855 | cultural pluralism | 3 | 32 | 425 | 584 |
| 855 | Recombinant DNA | 1 | 32 | 3054 | 2905 |
| 855 | Seabed | 5 | 32 | 90 | 218 |
| 855 | Development | 2 | 32 | 1200 | 1666 |
| 855 | Asylum seeker | 1 | 32 | 377 | 421 |
| 855 | Economic Assistance | 2 | 32 | 1056 | 1515 |
| 855 | world | 2 | 32 | 1097 | 1754 |
| 868 | Machine Learning | 3 | 31 | 433 | 671 |
| 868 | Ethnoarchaeology | 3 | 31 | 192 | 383 |
| 868 | Simulation | 2 | 31 | 319 | 512 |
| 868 | Critical Discourse Analysis | 1 | 31 | 117 | 101 |
| 868 | healthcare disparities | 1 | 31 | 1200 | 1056 |
| 868 | Corporate governance | 1 | 31 | 1204 | 1128 |
| 868 | theoretical models | 2 | 31 | 319 | 512 |
| 868 | Paleobotany | 2 | 31 | 239 | 366 |
| 868 | Vegetation dynamics | 2 | 31 | 229 | 357 |
| 868 | Spanish language | 21 | 31 | 20 | 39 |
| 868 | Developed countries | 2 | 31 | 278 | 465 |
| 868 | Credit | 2 | 31 | 147 | 256 |
| 868 | Money | 2 | 31 | 469 | 727 |
| 881 | Comparative Education | 8 | 30 | 104 | 320 |
| 881 | Ecohydrology | 2 | 30 | 567 | 718 |
| 881 | nuclear magnetic resonance | 3 | 30 | 1378 | 1732 |
| 881 | Child psychology | 5 | 30 | 1400 | 2871 |
| 881 | Malaria | 1 | 30 | 1541 | 1557 |
| 881 | cell physiology | 1 | 30 | 2856 | 3282 |
| 887 | Philosophy | 16 | 29 | 880 | 1320 |
| 887 | Thrombosis | 1 | 29 | 2183 | 2258 |
| 887 | vibration | 2 | 29 | 1756 | 1979 |
| 887 | mass transfer | 1 | 29 | 2812 | 2729 |
| 887 | Molecular Spectroscopy | 2 | 29 | 2529 | 3046 |
| 887 | environmental exposure | 8 | 29 | 1349 | 3923 |
| 887 | vascular diseases | 1 | 29 | 1512 | 1694 |
| 887 | Maps | 4 | 29 | 134 | 284 |
| 895 | Language Disorders | 1 | 28 | 1632 | 1463 |
| 895 | Higher Education | 4 | 28 | 510 | 911 |
| 895 | Psycholinguistics | 1 | 28 | 1743 | 1706 |
| 895 | Clinical Biochemistry | 2 | 28 | 2127 | 2529 |
| 895 | Patient education | 2 | 28 | 998 | 1542 |
| 895 | Writing | 1 | 28 | 534 | 556 |
| 895 | scholarly publishing | 2 | 28 | 194 | 246 |
| 895 | Reading | 1 | 28 | 1028 | 922 |
| 895 | Decision making | 4 | 28 | 1553 | 2822 |
| 904 | Musicology | 5 | 27 | 159 | 267 |
| 904 | Dynamics | 3 | 27 | 2127 | 2454 |
| 904 | Heterocyclic chemistry | 1 | 27 | 1158 | 717 |
| 904 | Biogeochemical cycles | 1 | 27 | 838 | 1164 |
| 904 | Reproductive toxicology | 2 | 27 | 794 | 1163 |
| 904 | Asymmetric synthesis | 1 | 27 | 336 | 187 |
| 904 | Developmental Immunology | 1 | 27 | 1693 | 1820 |
| 904 | nucleic acids | 3 | 27 | 2233 | 3512 |
| 904 | World Wide Web | 1 | 27 | 973 | 606 |
| 913 | Computer Engineering | 2 | 26 | 1241 | 1420 |
| 913 | Materials Engineering | 3 | 26 | 859 | 1197 |
| 913 | cosmic rays | 1 | 26 | 1006 | 839 |
| 913 | Ethnic relations | 3 | 26 | 675 | 801 |
| 913 | Animal welfare | 1 | 26 | 757 | 745 |
| 913 | social marketing | 2 | 26 | 82 | 133 |
| 913 | econometric models | 4 | 26 | 559 | 1153 |
| 920 | Human Geography | 5 | 25 | 962 | 1748 |
| 920 | Fluid Dynamics | 3 | 25 | 1388 | 2016 |
| 920 | Nanophotonics | 1 | 25 | 663 | 764 |
| 920 | soil pollution | 1 | 25 | 1257 | 1214 |
| 920 | Energy Harvesting | 1 | 25 | 808 | 1130 |
| 920 | Archaea | 1 | 25 | 98 | 185 |
| 920 | biological monitoring | 2 | 25 | 784 | 1351 |
| 920 | Autonomous robots | 2 | 25 | 241 | 477 |
| 920 | educational innovations | 2 | 25 | 738 | 932 |
| 929 | Speech-Language Pathology | 3 | 24 | 318 | 603 |
| 929 | Nanomedicine | 1 | 24 | 605 | 772 |
| 929 | Intelligent Transportation Systems | 2 | 24 | 1041 | 1339 |
| 929 | Psychometrics | 3 | 24 | 493 | 824 |
| 929 | Cardiovascular system | 1 | 24 | 3011 | 3506 |
| 929 | automatic speech recognition | 3 | 24 | 146 | 398 |
| 929 | population policy | 1 | 24 | 342 | 353 |
| 929 | Psychiatric Epidemiology | 1 | 24 | 1120 | 1453 |
| 929 | Argentina | 12 | 24 | 82 | 134 |
| 938 | Multicultural Education | 2 | 23 | 557 | 616 |
| 938 | Food Microbiology | 1 | 23 | 2483 | 3004 |
| 938 | Metaphor | 1 | 23 | 64 | 88 |
| 938 | economic analysis | 1 | 23 | 586 | 552 |
| 938 | Liquid chromatography | 1 | 23 | 1172 | 891 |
| 943 | Urban Planning | 3 | 22 | 426 | 882 |
| 943 | Andrology | 1 | 22 | 1408 | 1503 |
| 943 | Latin American Literature | 15 | 22 | 103 | 92 |
| 943 | Flexible manufacturing systems | 1 | 22 | 848 | 1017 |
| 943 | Synchrotron Radiation | 1 | 22 | 833 | 812 |
| 943 | Randomized Controlled Trials | 2 | 22 | 1942 | 2421 |
| 943 | Group decision making | 2 | 22 | 679 | 934 |
| 943 | foreign exchange | 2 | 22 | 496 | 798 |
| 943 | Wales | 2 | 22 | 161 | 187 |
| 943 | Acarology | 1 | 22 | 654 | 694 |
| 943 | Egypt | 1 | 22 | 1232 | 1302 |
| 943 | Mites | 1 | 22 | 895 | 815 |
| 943 | Ticks | 1 | 22 | 707 | 714 |
| 943 | Acari | 1 | 22 | 626 | 688 |
| 957 | Criminal psychology | 2 | 21 | 1055 | 1357 |
| 957 | Algorithms | 3 | 21 | 844 | 1195 |
| 957 | Schizophrenia | 1 | 21 | 2003 | 2286 |
| 957 | dietary supplements | 2 | 21 | 1185 | 1990 |
| 957 | Public Choice | 1 | 21 | 701 | 712 |
| 957 | insurance | 2 | 21 | 528 | 725 |
| 957 | Transplantation | 1 | 21 | 2332 | 2576 |
| 957 | pheromones | 2 | 21 | 718 | 1255 |
| 957 | technical education | 1 | 21 | 1029 | 915 |
| 957 | Computer Literacy | 1 | 21 | 525 | 563 |
| 967 | Mechanical Engineering | 5 | 20 | 2398 | 3640 |
| 967 | Ichnology | 1 | 20 | 174 | 196 |
| 967 | Dietetics | 1 | 20 | 1693 | 1516 |
| 967 | Trace fossils | 1 | 20 | 174 | 196 |
| 967 | consumer behavior | 1 | 20 | 1070 | 1254 |
| 967 | X-ray crystallography | 3 | 20 | 748 | 1062 |
| 967 | disease outbreaks | 2 | 20 | 876 | 1600 |
| 967 | Epidemics | 2 | 20 | 839 | 1566 |
| 975 | Cartography | 3 | 19 | 642 | 792 |
| 975 | Stochastic Processes | 4 | 19 | 893 | 1621 |
| 975 | Pragmatics | 5 | 19 | 16 | 77 |
| 975 | Combinatorial optimization | 5 | 19 | 377 | 794 |
| 975 | Economic Thought | 2 | 19 | 434 | 814 |
| 975 | occupational diseases | 7 | 19 | 700 | 2461 |
| 975 | Smoking | 1 | 19 | 1558 | 1922 |
| 975 | economic conditions | 2 | 19 | 934 | 1064 |
| 975 | scientific societies | 5 | 19 | 752 | 2017 |
| 975 | Classroom Environment | 2 | 19 | 89 | 226 |
| 975 | Animal | 2 | 19 | 252 | 470 |
| 975 | humor | 2 | 19 | 19 | 37 |
| 987 | exobiology | 1 | 18 | 707 | 884 |
| 987 | Learning | 1 | 18 | 2659 | 2821 |
| 987 | extraterrestrial environment | 1 | 18 | 1340 | 1317 |
| 987 | Liver diseases | 1 | 18 | 2781 | 3396 |
| 991 | Early Childhood Education | 1 | 17 | 1092 | 1050 |
| 991 | Sociolinguistics | 2 | 17 | 603 | 776 |
| 991 | Geothermal Energy | 1 | 17 | 549 | 673 |
| 991 | Operator theory | 3 | 17 | 472 | 603 |
| 991 | Organizational change | 5 | 17 | 569 | 1515 |
| 991 | technology transfer | 1 | 17 | 658 | 793 |
| 991 | Green Technology | 3 | 17 | 473 | 1179 |
| 991 | overuse injuries | 1 | 17 | 38 | 39 |
| 991 | Technological Innovations | 1 | 17 | 2124 | 2281 |
| 991 | Wetland ecology | 2 | 17 | 703 | 1173 |