| 1 | Telecommunication | 60 | 10.0K | 450 | 139 |
| 2 | Information Technology | 29 | 7.9K | 533 | 47 |
| 3 | Communication | 11 | 6.7K | 1041 | 95 |
| 4 | Molecular Biology | 108 | 6.7K | 1304 | 1026 |
| 5 | Oncology | 11 | 6.1K | 927 | 295 |
| 6 | Chemical Engineering | 81 | 5.2K | 920 | 664 |
| 7 | Chemistry | 142 | 5.1K | 1624 | 1563 |
| 8 | Nanotechnology | 33 | 4.6K | 1570 | 806 |
| 9 | Biochemistry | 77 | 4.2K | 1910 | 1450 |
| 10 | Medicine | 81 | 4.1K | 1765 | 1409 |
| 11 | Renewable Energy Sources | 62 | 4.0K | 342 | 387 |
| 12 | Water | 46 | 3.7K | 510 | 393 |
| 13 | Biochemical Engineering | 31 | 3.3K | 1011 | 701 |
| 14 | Cell Biology | 24 | 3.3K | 1285 | 823 |
| 15 | Cytology | 25 | 3.2K | 1326 | 841 |
| 16 | Biology | 58 | 3.1K | 1913 | 1849 |
| 17 | Nanostructured Materials | 34 | 3.0K | 969 | 540 |
| 18 | Physics | 74 | 2.9K | 2103 | 2061 |
| 19 | Virology | 7 | 2.8K | 1523 | 639 |
| 20 | Ecology | 32 | 2.7K | 1952 | 1373 |
| 21 | Internet of Things | 58 | 2.5K | 111 | 103 |
| 22 | internet | 53 | 2.5K | 166 | 133 |
| 23 | Science | 64 | 2.5K | 1996 | 2125 |
| 24 | Pollution | 32 | 2.3K | 1726 | 1297 |
| 25 | Materials | 58 | 2.2K | 1561 | 1356 |
| 26 | Signal Processing | 42 | 2.2K | 635 | 474 |
| 27 | computer networks | 62 | 1.9K | 335 | 325 |
| 28 | Solar Energy | 57 | 1.9K | 140 | 197 |
| 29 | Clinical Biochemistry | 2 | 1.9K | 1208 | 115 |
| 30 | nanoscience | 10 | 1.9K | 1592 | 718 |
| 31 | environmental pollution | 23 | 1.8K | 1608 | 1080 |
| 32 | Wireless Communication Systems | 42 | 1.8K | 546 | 373 |
| 33 | Information Science | 23 | 1.8K | 782 | 393 |
| 34 | Environment | 27 | 1.8K | 1542 | 1488 |
| 35 | Biophysics | 63 | 1.7K | 1230 | 1317 |
| 36 | Neurology | 32 | 1.7K | 1402 | 1192 |
| 37 | Artificial Intelligence | 55 | 1.7K | 784 | 789 |
| 38 | Environmental Policy | 31 | 1.6K | 865 | 781 |
| 39 | coal | 26 | 1.6K | 426 | 298 |
| 40 | Electrochemistry | 30 | 1.5K | 1419 | 888 |
| 41 | Research | 50 | 1.5K | 2039 | 1875 |
| 42 | Environmental Management | 20 | 1.5K | 1060 | 745 |
| 43 | Biomass Energy | 26 | 1.5K | 698 | 652 |
| 44 | Water pollution | 16 | 1.4K | 1166 | 741 |
| 45 | Medical Technology | 8 | 1.2K | 847 | 221 |
| 46 | environmental protection | 35 | 1.2K | 870 | 929 |
| 47 | Catalysis | 31 | 1.2K | 1329 | 1322 |
| 48 | Environmental monitoring | 13 | 1.1K | 1863 | 1191 |
| 49 | energy conservation | 23 | 1.1K | 569 | 643 |
| 50 | Medical genetics | 31 | 1.0K | 682 | 811 |
| 51 | Materials Science | 45 | 1.0K | 1227 | 1427 |
| 52 | Environmental Health | 30 | 1.0K | 1628 | 1649 |
| 53 | Systems Engineering | 22 | 1.0K | 679 | 452 |
| 54 | Computer Science | 16 | 991 | 755 | 224 |
| 55 | Green Chemistry | 13 | 925 | 803 | 649 |
| 56 | fuel cells | 11 | 917 | 621 | 454 |
| 57 | Bioinformatics | 30 | 912 | 514 | 572 |
| 58 | Energy Storage | 25 | 911 | 298 | 312 |
| 59 | management | 12 | 910 | 1780 | 1220 |
| 60 | energy development | 2 | 908 | 1096 | 259 |
| 61 | Sustainable Engineering | 17 | 899 | 580 | 485 |
| 62 | Recycling | 4 | 896 | 480 | 189 |
| 63 | Energy Conversion | 12 | 875 | 559 | 574 |
| 64 | Immunology | 17 | 872 | 1165 | 1036 |
| 65 | Educational Technology | 4 | 866 | 1410 | 305 |
| 66 | Biomedical Engineering | 23 | 864 | 1805 | 1574 |
| 67 | Human genetics | 17 | 821 | 714 | 1103 |
| 68 | Cancer | 16 | 812 | 1150 | 1067 |
| 69 | Human-Computer Interaction | 21 | 778 | 394 | 345 |
| 70 | solar power | 18 | 751 | 176 | 226 |
| 70 | solar cells | 18 | 751 | 217 | 256 |
| 72 | actuators | 8 | 733 | 1374 | 794 |
| 72 | transducers | 8 | 733 | 1374 | 794 |
| 74 | Computational Biology | 26 | 728 | 683 | 767 |
| 75 | Multimedia Systems | 12 | 710 | 846 | 345 |
| 76 | Energy Policy | 18 | 690 | 1086 | 1213 |
| 77 | Environmental Engineering | 25 | 679 | 1202 | 1340 |
| 78 | Industrial Engineering | 9 | 611 | 992 | 560 |
| 79 | Telecommunication Systems | 17 | 609 | 558 | 332 |
| 79 | Detectors | 28 | 609 | 341 | 391 |
| 81 | Immunotherapy | 18 | 590 | 584 | 706 |
| 82 | Engineering | 23 | 549 | 1560 | 1353 |
| 82 | Database Management | 24 | 549 | 195 | 256 |
| 84 | Electronics | 13 | 544 | 1669 | 1132 |
| 85 | clay | 2 | 540 | 984 | 274 |
| 86 | Biotechnology | 12 | 530 | 2749 | 2501 |
| 87 | Medical Physics | 2 | 527 | 1550 | 612 |
| 88 | genome | 13 | 520 | 579 | 715 |
| 89 | carbon monoxide | 4 | 511 | 261 | 81 |
| 90 | Analytical Chemistry | 9 | 509 | 2449 | 1868 |
| 91 | Archaeology | 19 | 500 | 474 | 386 |
| 92 | Biocompatible Materials | 16 | 496 | 1594 | 1825 |
| 93 | Physiology | 21 | 478 | 1488 | 1698 |
| 94 | Natural history | 3 | 477 | 2772 | 2251 |
| 95 | Data Mining | 14 | 472 | 575 | 597 |
| 96 | Cell death | 16 | 449 | 443 | 637 |
| 97 | Membranes | 7 | 433 | 1110 | 909 |
| 98 | Databases | 16 | 428 | 118 | 138 |
| 99 | Genetics | 12 | 423 | 1536 | 1634 |
| 100 | Optics | 17 | 420 | 1926 | 1544 |
| 101 | Calorimetry | 4 | 412 | 1095 | 290 |
| 101 | Optical materials | 11 | 412 | 1404 | 1379 |
| 101 | Thermal analysis | 4 | 412 | 1095 | 290 |
| 104 | Computer Graphics | 9 | 409 | 976 | 670 |
| 105 | Nuclear Physics | 21 | 402 | 1847 | 1864 |
| 106 | Earth Sciences | 14 | 394 | 1509 | 1390 |
| 107 | Neurochemistry | 4 | 390 | 1717 | 1117 |
| 108 | Neurobiology | 8 | 389 | 920 | 908 |
| 109 | Cybernetics | 5 | 385 | 1197 | 749 |
| 110 | economic policy | 12 | 378 | 1167 | 737 |
| 111 | Solid State Physics | 17 | 377 | 1810 | 1689 |
| 112 | visualization | 7 | 372 | 852 | 364 |
| 113 | Electrical Engineering | 16 | 370 | 1448 | 1029 |
| 113 | Energy Harvesting | 3 | 370 | 431 | 343 |
| 115 | Social Sciences | 21 | 369 | 1198 | 1173 |
| 116 | Social policy | 10 | 359 | 484 | 317 |
| 117 | Metabolism | 15 | 351 | 967 | 1262 |
| 118 | Environmental Chemistry | 6 | 343 | 1413 | 1226 |
| 119 | Public Health | 15 | 341 | 2089 | 2193 |
| 120 | Sites | 7 | 331 | 335 | 313 |
| 121 | Statistical physics | 16 | 328 | 1584 | 1606 |
| 122 | Technology | 18 | 327 | 1481 | 1689 |
| 123 | Carbon | 6 | 324 | 892 | 891 |
| 124 | Economic History | 13 | 311 | 1567 | 1292 |
| 125 | human behavior | 8 | 310 | 1386 | 1597 |
| 126 | Nanochemistry | 3 | 303 | 1269 | 440 |
| 127 | Surface Chemistry | 8 | 301 | 2296 | 2111 |
| 128 | Semiconductors | 8 | 300 | 1358 | 858 |
| 129 | Neural circuitry | 14 | 297 | 885 | 1150 |
| 130 | International Relations | 10 | 295 | 509 | 369 |
| 130 | International Finance | 13 | 295 | 788 | 863 |
| 130 | Australia | 9 | 295 | 909 | 645 |
| 133 | Image Processing | 12 | 294 | 1134 | 1223 |
| 134 | Information Systems | 9 | 292 | 712 | 625 |
| 135 | Biomass | 4 | 287 | 563 | 394 |
| 136 | Operations Research | 19 | 284 | 884 | 1160 |
| 137 | Social Psychology | 7 | 278 | 1415 | 1213 |
| 138 | Adolescent | 4 | 268 | 1654 | 993 |
| 139 | Child | 4 | 266 | 1708 | 1109 |
| 140 | big data | 6 | 265 | 321 | 224 |
| 141 | Endocrinology | 10 | 264 | 1345 | 1541 |
| 141 | Medical Oncology | 5 | 264 | 1037 | 881 |
| 143 | Bioengineering | 5 | 263 | 2880 | 2491 |
| 143 | Allergy | 3 | 263 | 847 | 759 |
| 145 | Composite Materials | 17 | 256 | 1148 | 1730 |
| 145 | World Wide Web | 7 | 256 | 163 | 87 |
| 147 | Intelligent Transportation Systems | 13 | 253 | 440 | 694 |
| 148 | Genomics | 18 | 251 | 1113 | 1622 |
| 149 | Energy Consumption | 1 | 249 | 706 | 270 |
| 150 | Behavior | 7 | 248 | 1886 | 1972 |
| 151 | Heat Exchangers | 6 | 244 | 903 | 864 |
| 152 | Analytical Biochemistry | 5 | 239 | 1294 | 904 |
| 153 | Bioremediation | 5 | 234 | 585 | 462 |
| 153 | radioactive waste | 4 | 234 | 677 | 745 |
| 153 | industrial waste | 4 | 234 | 706 | 747 |
| 153 | Hazardous waste | 4 | 234 | 811 | 801 |
| 157 | Humanities | 11 | 233 | 801 | 515 |
| 158 | Numerical Analysis | 2 | 230 | 2642 | 1092 |
| 159 | Diabetes | 10 | 229 | 930 | 1185 |
| 160 | Polymers | 11 | 228 | 2395 | 2384 |
| 161 | Toxicology | 4 | 227 | 3253 | 2642 |
| 162 | Economics | 8 | 226 | 2505 | 2005 |
| 162 | Ceramics | 6 | 226 | 1030 | 699 |
| 162 | Optical Communications | 10 | 226 | 344 | 310 |
| 165 | Cloud Computing | 6 | 225 | 151 | 133 |
| 165 | Fluid Mechanics | 1 | 225 | 2074 | 794 |
| 165 | Access to Information | 4 | 225 | 107 | 124 |
| 165 | Information dissemination | 4 | 225 | 107 | 124 |
| 169 | Epidemiology | 10 | 223 | 1698 | 1775 |
| 170 | Colloids | 6 | 221 | 2498 | 2423 |
| 171 | Immunity | 3 | 217 | 1380 | 1258 |
| 172 | Cognitive Radio Networks | 5 | 216 | 127 | 103 |
| 173 | Immunopathology | 11 | 214 | 545 | 735 |
| 174 | polymerization | 9 | 213 | 2239 | 2108 |
| 175 | Transportation | 12 | 209 | 751 | 977 |
| 176 | Neurons | 2 | 204 | 585 | 744 |
| 177 | miniaturization | 3 | 203 | 1648 | 1264 |
| 178 | Microelectronics | 2 | 202 | 1785 | 1146 |
| 179 | Photonics | 12 | 199 | 966 | 1260 |
| 180 | Solid State Chemistry | 7 | 196 | 1758 | 1507 |
| 181 | United States | 12 | 195 | 2308 | 2548 |
| 182 | Fuzzy systems | 6 | 191 | 1209 | 726 |
| 183 | Parkinson's disease | 2 | 190 | 288 | 145 |
| 183 | Condensed Matter | 9 | 190 | 1805 | 1788 |
| 185 | sanitation | 3 | 188 | 1283 | 1314 |
| 186 | Stem cells | 16 | 186 | 520 | 876 |
| 186 | Decision making | 7 | 186 | 861 | 874 |
| 188 | Nervous system | 7 | 183 | 1411 | 1523 |
| 189 | Sustainable Development | 10 | 182 | 994 | 1469 |
| 190 | Technology Assessment | 3 | 180 | 399 | 349 |
| 191 | Inflammation | 1 | 178 | 1465 | 885 |
| 192 | cell physiology | 4 | 176 | 1106 | 1109 |
| 192 | lasers | 3 | 176 | 2041 | 1225 |
| 194 | Microbiology | 7 | 174 | 3397 | 3639 |
| 195 | Transnational corporations | 5 | 172 | 218 | 226 |
| 196 | Computer Engineering | 7 | 171 | 526 | 455 |
| 196 | Nanostructures | 6 | 171 | 1411 | 1445 |
| 198 | free radicals | 4 | 168 | 1043 | 1138 |
| 199 | mass transfer | 4 | 167 | 1474 | 1287 |
| 200 | Computational Intelligence | 9 | 164 | 262 | 334 |
| 201 | Pharmacology | 4 | 162 | 3366 | 2921 |
| 202 | Logistics | 9 | 160 | 230 | 483 |
| 202 | Information management | 3 | 160 | 59 | 30 |
| 202 | software | 2 | 160 | 1250 | 843 |
| 205 | Cognitive Science | 5 | 159 | 1180 | 1204 |
| 206 | Geographic information systems | 5 | 157 | 837 | 579 |
| 206 | Metabolic diseases | 7 | 157 | 1170 | 1484 |
| 208 | Medical Laboratory Science | 7 | 156 | 1197 | 1562 |
| 208 | Environmental Toxicology | 2 | 156 | 2531 | 1925 |
| 208 | pollutants | 2 | 156 | 2042 | 1549 |
| 208 | Environmental pollutants | 2 | 156 | 2361 | 1766 |
| 208 | environmental exposure | 2 | 156 | 2086 | 1498 |
| 213 | Hormones | 5 | 152 | 868 | 910 |
| 214 | Diagnostic Imaging | 5 | 151 | 1290 | 1095 |
| 215 | Research Design | 1 | 149 | 1590 | 831 |
| 216 | Mineral resources | 6 | 148 | 354 | 547 |
| 217 | Photochemistry | 4 | 146 | 1451 | 1244 |
| 217 | Electrochemical Analysis | 4 | 146 | 1393 | 1176 |
| 217 | Photobiology | 4 | 146 | 1186 | 1003 |
| 220 | geological modeling | 6 | 145 | 292 | 289 |
| 221 | Diabetes mellitus | 5 | 143 | 1228 | 1374 |
| 221 | Islam | 16 | 143 | 71 | 144 |
| 223 | Astronomy | 7 | 140 | 1690 | 1851 |
| 224 | Sports Medicine | 18 | 139 | 974 | 1464 |
| 225 | Linguistics | 7 | 136 | 866 | 781 |
| 225 | Oxidative stress | 3 | 136 | 803 | 982 |
| 225 | Computational Complexity | 11 | 136 | 436 | 518 |
| 225 | Oxidation-reduction | 3 | 136 | 737 | 867 |
| 229 | Business | 5 | 134 | 1716 | 1911 |
| 230 | Child psychology | 5 | 133 | 1034 | 1156 |
| 231 | Petroleum Engineering | 5 | 132 | 496 | 485 |
| 231 | Bioethics | 12 | 132 | 416 | 523 |
| 233 | Water quality management | 7 | 130 | 1118 | 1229 |
| 234 | Smart Materials | 12 | 129 | 376 | 666 |
| 235 | Pathology | 6 | 128 | 1157 | 1359 |
| 235 | Autism | 6 | 128 | 445 | 611 |
| 237 | Quantum theory | 5 | 125 | 802 | 689 |
| 238 | cell interaction | 6 | 124 | 650 | 932 |
| 239 | Geophysics | 5 | 121 | 2353 | 2322 |
| 240 | Social Networks | 4 | 118 | 227 | 258 |
| 240 | Online social networks | 4 | 118 | 206 | 189 |
| 242 | Mobile Computing | 9 | 117 | 576 | 831 |
| 243 | sustainability | 3 | 116 | 859 | 878 |
| 244 | Obesity | 6 | 113 | 1156 | 1529 |
| 245 | Public Policy | 2 | 109 | 1928 | 1435 |
| 246 | Automation | 4 | 108 | 1870 | 1882 |
| 247 | Egypt | 2 | 107 | 745 | 501 |
| 248 | Social Change | 4 | 106 | 885 | 1246 |
| 248 | natural gas | 4 | 106 | 267 | 328 |
| 250 | Ultrasonics | 2 | 105 | 1420 | 1268 |
| 250 | Sonochemistry | 2 | 105 | 822 | 871 |
| 250 | Middle East | 6 | 105 | 667 | 594 |
| 253 | Geriatrics | 3 | 103 | 2309 | 1889 |
| 254 | Sports | 15 | 101 | 908 | 1423 |
| 255 | gene mapping | 4 | 100 | 1431 | 1719 |
| 256 | Speech-Language Pathology | 2 | 99 | 361 | 222 |
| 256 | automatic speech recognition | 2 | 99 | 186 | 129 |
| 258 | Food Microbiology | 3 | 98 | 1114 | 1318 |
| 258 | Mental Disorders | 3 | 98 | 2158 | 2078 |
| 258 | Medical Ethics | 6 | 98 | 734 | 729 |
| 261 | Endocrine glands | 1 | 97 | 411 | 406 |
| 261 | Waste management | 4 | 97 | 1200 | 1118 |
| 263 | Psychology | 4 | 95 | 3740 | 3344 |
| 263 | Nanophotonics | 1 | 95 | 554 | 341 |
| 265 | Combustion | 3 | 94 | 1154 | 1103 |
| 265 | Ubiquitous computing | 10 | 94 | 34 | 96 |
| 265 | Money | 5 | 94 | 214 | 417 |
| 268 | Power Electronics | 8 | 93 | 652 | 1010 |
| 269 | Quality Control | 4 | 92 | 1447 | 1573 |
| 269 | food technology | 4 | 92 | 2102 | 2347 |
| 269 | Biodegradation | 3 | 92 | 739 | 815 |
| 269 | Magnetic Materials | 3 | 92 | 1451 | 1323 |
| 273 | Production Engineering | 6 | 91 | 1374 | 1505 |
| 273 | Medical Microbiology | 6 | 91 | 1291 | 1886 |
| 275 | Mathematics | 8 | 89 | 3856 | 3618 |
| 275 | Microstructure | 1 | 89 | 1534 | 612 |
| 277 | Sociology | 5 | 87 | 2296 | 2357 |
| 277 | Signal Transduction | 4 | 87 | 1107 | 1383 |
| 277 | Cytogenetics | 5 | 87 | 900 | 1245 |
| 277 | Antibodies | 5 | 87 | 390 | 486 |
| 277 | Antigens | 5 | 87 | 515 | 618 |
| 282 | Histology | 2 | 85 | 1815 | 1601 |
| 282 | food handling | 3 | 85 | 881 | 1071 |
| 282 | Africa | 4 | 85 | 1291 | 969 |
| 285 | Global warming | 10 | 82 | 16 | 140 |
| 286 | Geology | 3 | 81 | 2432 | 2199 |
| 286 | nucleic acids | 3 | 81 | 1324 | 1482 |
| 288 | Graphene | 1 | 79 | 258 | 195 |
| 289 | Pharmacogenetics | 8 | 78 | 463 | 849 |
| 290 | Manufacturing Processes | 7 | 76 | 1513 | 2006 |
| 290 | Mental Health | 1 | 76 | 2223 | 1359 |
| 292 | China | 3 | 74 | 2604 | 2433 |
| 292 | Genetic therapy | 5 | 74 | 677 | 958 |
| 294 | Hematopoietic stem cell transplantation | 2 | 73 | 486 | 533 |
| 295 | Psychiatry | 5 | 71 | 2627 | 3130 |
| 295 | Chemical industry | 3 | 71 | 1258 | 1114 |
| 295 | planning | 3 | 71 | 760 | 709 |
| 298 | city planning | 8 | 70 | 929 | 1522 |
| 298 | Developing countries | 11 | 70 | 1118 | 2091 |
| 300 | Industrial Microbiology | 2 | 69 | 2111 | 2139 |
| 301 | Asia | 4 | 68 | 2459 | 2269 |
| 301 | Aquaculture | 1 | 68 | 1904 | 1358 |
| 303 | Cryptography | 3 | 67 | 682 | 445 |
| 303 | marketing | 4 | 67 | 1659 | 1986 |
| 303 | DNA polymerases | 2 | 67 | 415 | 680 |
| 306 | Developmental Biology | 3 | 66 | 1623 | 1921 |
| 306 | Flexible manufacturing systems | 2 | 66 | 533 | 508 |
| 306 | Spectrum analysis | 3 | 66 | 3443 | 3400 |
| 309 | Cell communication | 4 | 65 | 457 | 815 |
| 310 | Aerosols | 1 | 64 | 814 | 537 |
| 310 | Economic planning | 1 | 64 | 938 | 625 |
| 312 | Health | 4 | 63 | 1668 | 1909 |
| 312 | particles | 1 | 63 | 1639 | 1124 |
| 312 | Granular materials | 1 | 63 | 1069 | 796 |
| 312 | biochemical markers | 3 | 63 | 586 | 636 |
| 316 | Health Services Research | 1 | 62 | 2072 | 1386 |
| 316 | Primary health care | 1 | 62 | 2216 | 1508 |
| 318 | Quality Assurance | 1 | 61 | 725 | 333 |
| 318 | Database Security | 2 | 61 | 102 | 57 |
| 318 | Investment analysis | 4 | 61 | 832 | 985 |
| 318 | commerce | 5 | 61 | 1191 | 1607 |
| 322 | Atmospheric Physics | 4 | 60 | 1174 | 1518 |
| 322 | Bacteriology | 1 | 60 | 2138 | 1921 |
| 322 | Synaptic Transmission | 1 | 60 | 685 | 561 |
| 325 | Metallurgy | 3 | 59 | 2048 | 1891 |
| 325 | gene therapy | 4 | 59 | 726 | 1040 |
| 325 | Metals | 3 | 59 | 1911 | 1909 |
| 328 | drug resistance | 3 | 58 | 659 | 882 |
| 328 | Water Purification | 3 | 58 | 1128 | 1173 |
| 328 | Respiration | 4 | 58 | 1079 | 1426 |
| 331 | Genetic engineering | 4 | 57 | 1583 | 2072 |
| 331 | Physical Chemistry | 3 | 57 | 1968 | 2046 |
| 331 | Family | 7 | 57 | 584 | 998 |
| 331 | glycoproteins | 1 | 57 | 676 | 575 |
| 331 | families | 7 | 57 | 520 | 826 |
| 331 | Glycoconjugates | 1 | 57 | 676 | 575 |
| 331 | Oligosaccharides | 1 | 57 | 448 | 326 |
| 331 | government | 3 | 57 | 541 | 473 |
| 331 | glycolipids | 1 | 57 | 676 | 575 |
| 340 | Corporate governance | 1 | 56 | 1096 | 833 |
| 340 | data protection | 4 | 56 | 464 | 577 |
| 342 | Applied Linguistics | 4 | 55 | 545 | 582 |
| 342 | Public Administration | 5 | 55 | 1026 | 1231 |
| 342 | international trade | 5 | 55 | 535 | 762 |
| 342 | Information society | 4 | 55 | 86 | 199 |
| 346 | Economic Development | 4 | 52 | 1294 | 1778 |
| 346 | Interfaces | 3 | 52 | 328 | 365 |
| 348 | Climatology | 2 | 51 | 1833 | 1892 |
| 348 | Building Materials | 2 | 51 | 1835 | 2135 |
| 348 | Medical innovations | 2 | 51 | 973 | 1357 |
| 348 | sports administration | 5 | 51 | 203 | 390 |
| 352 | Hydrology | 5 | 49 | 1788 | 2404 |
| 352 | Molecular Spectroscopy | 2 | 49 | 2054 | 2007 |
| 352 | finance | 8 | 49 | 1504 | 2321 |
| 352 | Aging | 3 | 49 | 2152 | 2343 |
| 356 | Cross-Cultural Studies | 2 | 48 | 926 | 913 |
| 356 | Gene expression regulation | 2 | 48 | 1032 | 1083 |
| 356 | Cell differentiation | 3 | 48 | 1177 | 1672 |
| 356 | DNA methylation | 2 | 48 | 318 | 458 |
| 356 | cross-cultural comparison | 2 | 48 | 663 | 633 |
| 361 | Genetic epidemiology | 1 | 47 | 368 | 311 |
| 361 | heredity | 1 | 47 | 997 | 701 |
| 363 | Urban Policy | 1 | 46 | 1398 | 1165 |
| 363 | Critical Care | 3 | 46 | 1065 | 1423 |
| 363 | Critical Care Medicine | 3 | 46 | 1021 | 1394 |
| 363 | Infection control | 1 | 46 | 588 | 513 |
| 363 | Molecules | 4 | 46 | 1329 | 1386 |
| 368 | Synthetic biology | 1 | 45 | 507 | 458 |
| 368 | Lightweight concrete | 1 | 45 | 703 | 866 |
| 368 | concrete | 1 | 45 | 1325 | 1327 |
| 371 | Astrophysics | 1 | 43 | 3330 | 2746 |
| 371 | Hydraulic Engineering | 2 | 43 | 975 | 961 |
| 371 | Atmospheric Chemistry | 3 | 43 | 773 | 1140 |
| 371 | emergency management | 1 | 43 | 1144 | 934 |
| 371 | Risk assessment | 1 | 43 | 1162 | 788 |
| 371 | Cyberterrorism | 1 | 43 | 120 | 117 |
| 377 | Surgery | 2 | 42 | 1326 | 1408 |
| 377 | Thermodynamics | 3 | 42 | 1279 | 1178 |
| 377 | Microfluidics | 1 | 42 | 404 | 364 |
| 380 | Agricultural Chemistry | 1 | 41 | 2758 | 2520 |
| 381 | Information Theory | 2 | 39 | 1524 | 1492 |
| 381 | Inorganic Chemistry | 1 | 39 | 121 | 120 |
| 381 | Municipal Engineering | 1 | 39 | 691 | 608 |
| 381 | Diagnosis | 2 | 39 | 472 | 523 |
| 381 | Bioinorganic chemistry | 1 | 39 | 1885 | 1687 |
| 386 | Drug design | 3 | 38 | 1436 | 1902 |
| 386 | Adolescent Psychology | 3 | 38 | 780 | 1038 |
| 388 | Mechanical Engineering | 4 | 37 | 2087 | 2307 |
| 388 | Neurotoxicology | 1 | 37 | 962 | 999 |
| 388 | Computational Linguistics | 5 | 37 | 361 | 561 |
| 388 | Brain | 3 | 37 | 2111 | 2703 |
| 392 | environmental indicators | 2 | 36 | 1356 | 1840 |
| 392 | disease susceptibility | 1 | 36 | 115 | 171 |
| 392 | multimedia | 1 | 36 | 811 | 793 |
| 392 | Interactive multimedia | 1 | 36 | 953 | 887 |
| 392 | enzymes | 3 | 36 | 1353 | 1867 |
| 392 | symptoms | 1 | 36 | 115 | 171 |
| 398 | Software Engineering | 3 | 35 | 1016 | 1204 |
| 398 | Software Maintenance | 3 | 35 | 166 | 246 |
| 398 | Clinical Immunology | 2 | 35 | 992 | 1226 |
| 398 | Functional Genomics | 3 | 35 | 232 | 506 |
| 398 | Tourism | 2 | 35 | 1954 | 2362 |
| 403 | Systems Biology | 5 | 33 | 1033 | 1940 |
| 403 | Behavioral research | 1 | 33 | 1161 | 818 |
| 403 | Chromosome mapping | 2 | 33 | 1774 | 2238 |
| 403 | infection | 2 | 33 | 1496 | 1789 |
| 403 | Dementia | 3 | 33 | 1165 | 1103 |
| 403 | Alzheimer's disease | 3 | 33 | 1172 | 1158 |
| 403 | disease outbreaks | 2 | 33 | 539 | 750 |
| 403 | Epidemics | 2 | 33 | 525 | 740 |
| 411 | Structural design | 2 | 32 | 1047 | 1141 |
| 411 | Quantum Gravity | 1 | 32 | 2288 | 2012 |
| 413 | Geography | 3 | 31 | 1870 | 2383 |
| 413 | Solitons | 4 | 31 | 1076 | 1691 |
| 413 | Fractals | 4 | 31 | 1082 | 1696 |
| 413 | Chaos | 4 | 31 | 1076 | 1691 |
| 413 | System analysis | 5 | 31 | 1878 | 2834 |
| 413 | Foodborne diseases | 1 | 31 | 427 | 431 |
| 419 | Education | 3 | 30 | 3401 | 3614 |
| 419 | Remote Sensing | 4 | 30 | 1280 | 1648 |
| 419 | Precision medicine | 2 | 30 | 249 | 273 |
| 419 | Social problems | 1 | 30 | 983 | 940 |
| 419 | construction industry | 1 | 30 | 286 | 223 |
| 419 | Europe | 2 | 30 | 3000 | 2996 |
| 419 | Vaccines | 6 | 30 | 987 | 2011 |
| 426 | Politics | 2 | 29 | 589 | 526 |
| 427 | Embedded Systems | 2 | 28 | 264 | 280 |
| 427 | United Kingdom | 4 | 28 | 1129 | 1771 |
| 427 | Molecular structure | 2 | 28 | 2728 | 2823 |
| 430 | Adsorption | 2 | 27 | 278 | 409 |
| 430 | Biomarkers | 2 | 27 | 521 | 658 |
| 430 | Homeostasis | 1 | 27 | 583 | 872 |
| 430 | Cell metabolism | 1 | 27 | 986 | 1153 |
| 434 | Obstetrics | 1 | 26 | 2373 | 2253 |
| 434 | Fracture mechanics | 2 | 26 | 1496 | 1762 |
| 434 | Ceramic materials | 1 | 26 | 1929 | 1827 |
| 434 | Visual Perception | 2 | 26 | 1448 | 1697 |
| 434 | Memory | 2 | 26 | 1574 | 1963 |
| 434 | Attention | 2 | 26 | 1498 | 1823 |
| 434 | Perception | 2 | 26 | 1616 | 1902 |
| 434 | Pregnancy | 1 | 26 | 1257 | 1208 |
| 442 | Global Health | 4 | 25 | 854 | 1511 |
| 442 | Natural resources | 1 | 25 | 1154 | 1197 |
| 442 | Hydrodynamics | 1 | 25 | 831 | 908 |
| 442 | Child Development | 4 | 25 | 1446 | 2288 |
| 442 | Tropical Medicine | 2 | 25 | 1840 | 2181 |
| 442 | pigments | 1 | 25 | 1382 | 1432 |
| 448 | Engineering Mathematics | 1 | 24 | 2701 | 2198 |
| 448 | Clinical Chemistry | 2 | 24 | 2381 | 2936 |
| 448 | North Africa | 3 | 24 | 162 | 131 |
| 448 | biomedicine | 1 | 24 | 872 | 997 |
| 448 | population geography | 1 | 24 | 669 | 692 |
| 453 | Information Retrieval | 3 | 23 | 456 | 828 |
| 453 | Chemical processes | 2 | 23 | 726 | 918 |
| 453 | water reuse | 2 | 23 | 456 | 797 |
| 456 | Genetic disorders | 1 | 22 | 572 | 645 |
| 456 | scientific societies | 1 | 22 | 1138 | 1186 |
| 456 | Exercise | 3 | 22 | 1455 | 1919 |
| 459 | Traffic Engineering | 4 | 21 | 334 | 824 |
| 459 | Nuclear Medicine | 5 | 21 | 635 | 1052 |
| 459 | Reproduction | 3 | 21 | 1823 | 2464 |
| 462 | Zoology | 1 | 20 | 3050 | 2760 |
| 462 | Informatics | 1 | 20 | 1270 | 1369 |
| 462 | Agriculture | 1 | 20 | 2873 | 2792 |
| 465 | Hematology | 1 | 19 | 1971 | 2043 |
| 465 | Health Services Administration | 1 | 19 | 1560 | 1620 |
| 465 | Neuropsychology | 1 | 19 | 2729 | 2876 |
| 465 | Neurophysiology | 1 | 19 | 3106 | 3288 |
| 465 | Biofeedback | 1 | 19 | 242 | 366 |
| 465 | adolescence | 2 | 19 | 1087 | 1522 |
| 465 | Coding Theory | 2 | 19 | 476 | 502 |
| 465 | Russia | 1 | 19 | 394 | 138 |
| 465 | behavior therapy | 1 | 19 | 1140 | 1210 |
| 465 | atmospheric models | 1 | 19 | 815 | 959 |
| 465 | Youth | 2 | 19 | 802 | 1191 |
| 465 | health services | 1 | 19 | 1534 | 1581 |
| 465 | Soviet Union | 1 | 19 | 1263 | 856 |
| 465 | economic development projects | 1 | 19 | 391 | 441 |
| 465 | Immune system | 1 | 19 | 1175 | 1382 |
| 465 | Psychophysiology | 1 | 19 | 3037 | 3256 |
| 481 | Nutrition | 2 | 18 | 3644 | 4575 |
| 481 | Dynamics | 3 | 18 | 1649 | 2121 |
| 481 | Mathematical Physics | 3 | 18 | 2641 | 3077 |
| 481 | East Asia | 2 | 18 | 823 | 1040 |
| 485 | Ethics | 2 | 17 | 1111 | 1474 |
| 485 | Metastasis | 1 | 17 | 309 | 555 |
| 485 | Intelligent Control Systems | 2 | 17 | 1521 | 1641 |
| 485 | Developmental Disabilities | 2 | 17 | 1084 | 1598 |
| 485 | Astrocytes | 1 | 17 | 635 | 863 |
| 485 | Porous materials | 2 | 17 | 978 | 1288 |
| 491 | Orthopedics | 2 | 16 | 1352 | 1730 |
| 491 | Geochemistry | 1 | 16 | 2362 | 2632 |
| 491 | Ocean Engineering | 1 | 16 | 2096 | 2343 |
| 491 | Nanoparticles | 3 | 16 | 1788 | 2721 |
| 491 | Cosmochemistry | 1 | 16 | 1224 | 1495 |
| 491 | Mental illness | 1 | 16 | 2100 | 2452 |
| 491 | sports injuries | 2 | 16 | 683 | 970 |
| 498 | Dermatology | 1 | 15 | 1777 | 1884 |
| 498 | Quality of life | 1 | 15 | 2094 | 2486 |
| 498 | proteins | 2 | 15 | 1947 | 2613 |
| 501 | Nuclear Engineering | 2 | 14 | 1569 | 1863 |
| 501 | Environmental Economics | 2 | 14 | 529 | 831 |
| 501 | Combinatorial optimization | 2 | 14 | 690 | 841 |
| 501 | Religion | 1 | 14 | 1444 | 996 |
| 501 | Qualitative Research | 2 | 14 | 639 | 989 |
| 501 | Entrepreneurship | 2 | 14 | 1250 | 2003 |
| 501 | Radio waves | 1 | 14 | 1166 | 1302 |
| 501 | Radio | 1 | 14 | 1843 | 1949 |
| 501 | Elections | 1 | 14 | 552 | 574 |
| 510 | Food Science | 1 | 13 | 465 | 550 |
| 510 | Environmental Geology | 1 | 13 | 2264 | 2596 |
| 510 | Environmental Law | 1 | 13 | 1511 | 1981 |
| 510 | Genetic Research | 2 | 13 | 197 | 442 |
| 510 | Organometallic chemistry | 1 | 13 | 2830 | 2951 |
| 510 | Fisheries | 1 | 13 | 2080 | 2202 |
| 516 | Human Geography | 1 | 12 | 1668 | 1766 |
| 516 | Human Rights | 2 | 12 | 707 | 1042 |
| 516 | civil rights | 2 | 12 | 501 | 754 |
| 516 | Political Participation | 2 | 12 | 432 | 664 |
| 516 | Citizenship | 2 | 12 | 191 | 409 |
| 516 | Developmental Immunology | 1 | 12 | 919 | 1176 |
| 516 | Plastics | 1 | 12 | 2322 | 2489 |
| 516 | Hospitality industry | 1 | 12 | 815 | 1162 |
| 516 | aromatic plants | 1 | 12 | 492 | 542 |
| 516 | water supply | 1 | 12 | 1263 | 1620 |
| 516 | Library Science | 1 | 12 | 1593 | 1470 |
| 516 | Steroids | 2 | 12 | 997 | 1577 |
| 516 | Microwaves | 2 | 12 | 1414 | 1729 |
| 516 | gene transfer | 1 | 12 | 451 | 608 |
| 516 | genetic transformation | 1 | 12 | 451 | 608 |
| 531 | Green Technology | 1 | 11 | 868 | 1251 |
| 531 | Integrated Circuits | 3 | 11 | 813 | 1121 |
| 531 | Climate change | 2 | 11 | 1084 | 1882 |
| 531 | Molecular cloning | 2 | 11 | 1542 | 2281 |
| 531 | micromechanics | 1 | 11 | 950 | 1149 |
| 531 | Genetic recombination | 2 | 11 | 1526 | 2259 |
| 531 | Recombinant DNA | 2 | 11 | 1592 | 2340 |
| 538 | Quantum electronics | 1 | 10 | 2192 | 2318 |
| 538 | Microprocessors | 1 | 10 | 1032 | 1232 |
| 538 | Physical fitness | 1 | 10 | 1499 | 1798 |
| 538 | Lipids | 2 | 10 | 1370 | 2106 |
| 538 | Capital market | 1 | 10 | 815 | 1078 |
| 538 | Islamic civilization | 4 | 10 | 67 | 74 |
| 538 | Investments | 2 | 10 | 713 | 1271 |
| 538 | drug evaluation | 1 | 10 | 1731 | 2151 |
| 546 | Robotics | 1 | 9 | 2334 | 2617 |
| 546 | Language Disorders | 1 | 9 | 1176 | 1384 |
| 546 | Urban Transportation | 1 | 9 | 296 | 455 |
| 546 | Cognitive neuroscience | 1 | 9 | 1337 | 1687 |
| 546 | Entropy | 2 | 9 | 1477 | 2147 |
| 546 | Neuroplasticity | 1 | 9 | 506 | 747 |
| 546 | Malaria | 1 | 9 | 949 | 1278 |
| 546 | calcification | 1 | 9 | 708 | 976 |
| 546 | breastfeeding | 1 | 9 | 820 | 1073 |
| 546 | Proteome | 1 | 9 | 1379 | 1823 |
| 546 | Humanitarian Assistance | 1 | 9 | 61 | 92 |
| 546 | biological factors | 1 | 9 | 2576 | 3096 |
| 546 | human development | 1 | 9 | 1231 | 1653 |
| 546 | Endocrine system | 1 | 9 | 926 | 628 |
| 546 | Biodiversity | 1 | 9 | 2865 | 3287 |
| 561 | air quality management | 1 | 8 | 951 | 1423 |
| 561 | Venture Capital | 1 | 8 | 493 | 752 |
| 561 | electric vehicles | 1 | 8 | 525 | 744 |
| 561 | Evolutionary Computation | 1 | 8 | 840 | 1209 |
| 561 | Swarm Intelligence | 1 | 8 | 584 | 857 |
| 561 | Securities | 2 | 8 | 458 | 953 |
| 561 | data collection | 1 | 8 | 1687 | 2220 |
| 561 | Wind power | 1 | 8 | 529 | 699 |
| 561 | educational planning | 1 | 8 | 730 | 1051 |
| 561 | winds | 1 | 8 | 233 | 297 |
| 561 | stocks | 2 | 8 | 194 | 620 |
| 572 | Civil Engineering | 1 | 7 | 2152 | 2282 |
| 572 | Computer Vision | 2 | 7 | 1319 | 2013 |
| 572 | Pediatric Neurology | 1 | 7 | 1010 | 1367 |
| 572 | Regional Planning | 2 | 7 | 1643 | 2561 |
| 572 | International Law | 2 | 7 | 488 | 442 |
| 572 | Financial Engineering | 1 | 7 | 365 | 675 |
| 572 | Parallel Processing | 2 | 7 | 538 | 1005 |
| 572 | Mass Media | 1 | 7 | 1358 | 1301 |
| 572 | Oncogenes | 1 | 7 | 1135 | 1571 |
| 572 | Food | 1 | 7 | 3730 | 4558 |
| 572 | Product life cycle | 1 | 7 | 536 | 818 |
| 572 | Women's health | 1 | 7 | 1862 | 2359 |
| 572 | Chronic diseases | 1 | 7 | 814 | 1126 |
| 585 | Political Science | 1 | 6 | 2340 | 2338 |
| 585 | Architecture | 1 | 6 | 898 | 924 |
| 585 | Intercultural Communication | 2 | 6 | 567 | 1143 |
| 585 | Architectural Design | 1 | 6 | 825 | 1045 |
| 585 | Highway Engineering | 2 | 6 | 472 | 932 |
| 585 | Engineering Ethics | 1 | 6 | 381 | 657 |
| 585 | Disability Studies | 1 | 6 | 473 | 706 |
| 585 | War | 1 | 6 | 393 | 564 |
| 585 | Nonlinear Dynamics | 1 | 6 | 2294 | 2741 |
| 585 | Language and Education | 1 | 6 | 272 | 413 |
| 585 | Multiphase Flow | 1 | 6 | 631 | 910 |
| 585 | Immunochemistry | 1 | 6 | 1340 | 1761 |
| 585 | Professional ethics | 1 | 6 | 549 | 910 |
| 585 | warfare | 1 | 6 | 488 | 736 |
| 585 | protein | 1 | 6 | 1573 | 2008 |
| 585 | Luminescence | 1 | 6 | 1974 | 2423 |
| 585 | refugees | 1 | 6 | 433 | 634 |
| 585 | drug development | 1 | 6 | 1290 | 1855 |
| 585 | rehabilitation | 1 | 6 | 2730 | 3407 |
| 604 | Logic | 1 | 5 | 728 | 829 |
| 604 | Machine Learning | 1 | 5 | 573 | 773 |
| 604 | Translation | 1 | 5 | 295 | 255 |
| 604 | Reproductive health | 1 | 5 | 1179 | 1685 |
| 604 | Molecular Imaging | 1 | 5 | 743 | 991 |
| 604 | Multilingualism | 1 | 5 | 541 | 872 |
| 604 | Second Language Acquisition | 1 | 5 | 374 | 673 |
| 604 | arms control | 1 | 5 | 164 | 222 |
| 604 | interfaith relations | 2 | 5 | 58 | 136 |
| 604 | Collective security | 1 | 5 | 32 | 38 |
| 604 | dispute settlement | 1 | 5 | 41 | 62 |
| 604 | Humanitarian Law | 1 | 5 | 46 | 52 |
| 604 | reasoning | 1 | 5 | 809 | 1021 |
| 604 | older people | 1 | 5 | 2117 | 2337 |
| 604 | Christianity | 2 | 5 | 252 | 232 |
| 604 | cultural pluralism | 1 | 5 | 754 | 1058 |
| 604 | Development | 1 | 5 | 1235 | 1725 |
| 604 | Protein engineering | 1 | 5 | 368 | 605 |
| 604 | molecular design | 1 | 5 | 411 | 614 |
| 623 | health services accessibility | 1 | 4 | 1394 | 1994 |
| 623 | Quantum Communication | 1 | 4 | 316 | 500 |
| 623 | Rheology | 1 | 4 | 893 | 1279 |
| 623 | Travel | 1 | 4 | 1286 | 1840 |
| 623 | Marriage | 1 | 4 | 883 | 1332 |
| 623 | Serbia | 1 | 4 | 301 | 373 |
| 623 | Mechanics | 1 | 4 | 1936 | 2363 |
| 630 | Pediatrics | 2 | 3 | 2054 | 3276 |
| 630 | Computer-Aided Design | 1 | 3 | 1830 | 2412 |
| 630 | Patient Safety | 1 | 3 | 164 | 288 |
| 630 | Plant breeding | 1 | 3 | 1162 | 1690 |
| 630 | Communication in politics | 1 | 3 | 521 | 817 |
| 630 | DNA repair | 1 | 3 | 460 | 759 |
| 630 | System design | 1 | 3 | 389 | 682 |
| 630 | probabilities | 1 | 3 | 1790 | 2060 |
| 630 | Imaging systems | 1 | 3 | 1417 | 1851 |
| 630 | optical devices | 1 | 3 | 822 | 1185 |
| 630 | ground penetrating radar | 1 | 3 | 149 | 313 |
| 630 | eugenics | 1 | 3 | 880 | 1346 |
| 630 | Breeding | 1 | 3 | 1597 | 2230 |
| 643 | Law | 1 | 2 | 1839 | 2053 |
| 643 | Organizational learning | 1 | 2 | 987 | 1750 |
| 643 | Asset Management | 1 | 2 | 152 | 300 |
| 643 | Diffusion of innovations | 1 | 2 | 248 | 579 |
| 643 | Knowledge management | 1 | 2 | 1017 | 1768 |
| 643 | Sarcopenia | 1 | 2 | 620 | 938 |
| 643 | air quality | 1 | 2 | 539 | 1101 |
| 643 | Comparative Law | 1 | 2 | 477 | 471 |
| 643 | Central Asia | 1 | 2 | 409 | 798 |
| 643 | Muscles | 1 | 2 | 1063 | 1509 |
| 643 | statutes | 1 | 2 | 49 | 53 |
| 654 | Ergonomics | 1 | 1 | 1354 | 1927 |
| 654 | Language Acquisition | 1 | 1 | 608 | 985 |
| 654 | Bilingualism | 1 | 1 | 307 | 630 |
| 654 | Postcolonialism | 1 | 1 | 267 | 477 |
| 654 | Welding | 1 | 1 | 477 | 789 |
| 654 | Islamic philosophy | 1 | 1 | 5 | 8 |
| 654 | Diplomatic relations | 2 | 1 | 768 | 1304 |
| 654 | psychotherapy | 1 | 1 | 1703 | 2342 |
| 654 | Social work | 1 | 1 | 2008 | 2845 |
| 654 | psychiatric disorders | 1 | 1 | 118 | 251 |
| 654 | international courts | 3 | 1 | 12 | 82 |
| 665 | Higher Education | 1 | 0 | 1112 | 1864 |
| 665 | Health Policy | 1 | 0 | 2697 | 3843 |
| 665 | Education policy | 1 | 0 | 173 | 445 |
| 665 | Immunopharmacology | 1 | 0 | 1521 | 2218 |
| 665 | Electrocardiography | 1 | 0 | 533 | 866 |
| 665 | foreign policy | 1 | 0 | 471 | 638 |
| 665 | Cell division | 1 | 0 | 617 | 1043 |
| 665 | monetary policy | 2 | 0 | 48 | 326 |
| 665 | Electrophysiology | 1 | 0 | 1220 | 1770 |
| 665 | cytokines | 1 | 0 | 1605 | 2329 |
| 665 | Budget | 1 | 0 | 309 | 598 |
| 665 | Therapeutics | 1 | 0 | 1872 | 2763 |
| 665 | Germany | 1 | 0 | 1140 | 1741 |
| 665 | Microscopy | 1 | 0 | 2010 | 2887 |
| 665 | church and state | 1 | 0 | 246 | 251 |