| 1 | Ecology | 85 | 3.8K | 1181 | 1240 |
| 2 | Pollution | 85 | 3.7K | 979 | 1038 |
| 3 | environmental pollution | 77 | 3.5K | 748 | 679 |
| 4 | Environmental monitoring | 72 | 3.0K | 508 | 558 |
| 5 | Environmental Health | 106 | 2.8K | 695 | 1009 |
| 6 | Chemistry | 142 | 2.1K | 1743 | 2765 |
| 7 | Biotechnology | 75 | 1.9K | 1273 | 1709 |
| 8 | Biology | 41 | 1.5K | 3009 | 3765 |
| 9 | Wireless Communication Systems | 51 | 1.5K | 478 | 440 |
| 10 | Medicine | 44 | 1.5K | 3233 | 3384 |
| 11 | computer networks | 23 | 1.4K | 868 | 440 |
| 12 | Chemical Engineering | 45 | 1.3K | 1316 | 1506 |
| 13 | food technology | 35 | 1.3K | 577 | 533 |
| 14 | Artificial Intelligence | 52 | 1.3K | 847 | 957 |
| 15 | Physics | 100 | 1.2K | 2011 | 4139 |
| 16 | coal | 32 | 1.2K | 332 | 384 |
| 17 | Environment | 30 | 1.2K | 1577 | 2039 |
| 18 | Microbiology | 56 | 1.1K | 1681 | 2459 |
| 19 | Optics | 69 | 1.1K | 1146 | 1054 |
| 20 | Manufacturing Processes | 33 | 1.1K | 584 | 496 |
| 21 | Materials | 89 | 1.1K | 1384 | 2084 |
| 22 | Automation | 15 | 1.1K | 1038 | 685 |
| 23 | Materials Science | 67 | 1.0K | 1082 | 1628 |
| 24 | Polymers | 69 | 983 | 1075 | 1475 |
| 25 | Environmental Management | 17 | 920 | 1172 | 1070 |
| 26 | Food | 31 | 906 | 870 | 972 |
| 27 | Production Engineering | 19 | 888 | 677 | 362 |
| 28 | Environmental Policy | 23 | 883 | 1027 | 1213 |
| 29 | Biomedical Engineering | 43 | 822 | 1351 | 1763 |
| 29 | lasers | 50 | 822 | 359 | 458 |
| 31 | Quantum electronics | 48 | 818 | 280 | 338 |
| 31 | Optoelectronic devices | 48 | 818 | 46 | 40 |
| 33 | Engineering Mathematics | 34 | 804 | 597 | 391 |
| 34 | Bioengineering | 34 | 799 | 1267 | 1908 |
| 35 | Nanotechnology | 65 | 794 | 1195 | 2062 |
| 36 | Neural circuitry | 17 | 751 | 714 | 593 |
| 36 | food industry | 9 | 751 | 204 | 26 |
| 38 | Biomass Energy | 36 | 664 | 582 | 1115 |
| 39 | Research | 31 | 655 | 3209 | 3907 |
| 40 | Organometallic chemistry | 39 | 626 | 325 | 414 |
| 41 | Energy Policy | 21 | 623 | 919 | 1264 |
| 42 | Composite Materials | 29 | 617 | 834 | 1186 |
| 42 | Biocompatible Materials | 23 | 617 | 1497 | 1925 |
| 44 | Biochemical Engineering | 21 | 616 | 1277 | 1970 |
| 45 | Science | 59 | 590 | 2688 | 5976 |
| 46 | Biochemistry | 47 | 582 | 2910 | 4294 |
| 47 | Multimedia Systems | 39 | 579 | 283 | 396 |
| 48 | Telecommunication | 20 | 566 | 1054 | 982 |
| 49 | environmental protection | 23 | 552 | 1164 | 1502 |
| 50 | Computational Intelligence | 14 | 547 | 279 | 142 |
| 51 | Statistical physics | 34 | 531 | 1267 | 1404 |
| 52 | free radicals | 1 | 525 | 2028 | 753 |
| 53 | Analytical Chemistry | 24 | 523 | 1837 | 2065 |
| 54 | Telecommunication Systems | 26 | 513 | 374 | 388 |
| 55 | Sustainable Development | 23 | 505 | 471 | 799 |
| 56 | Engineering | 36 | 498 | 1251 | 1495 |
| 57 | Condensed Matter | 30 | 495 | 1357 | 1508 |
| 58 | Catalysis | 34 | 480 | 1311 | 1931 |
| 59 | Renewable Energy Sources | 29 | 465 | 637 | 1753 |
| 60 | Computer-Aided Design | 37 | 459 | 159 | 367 |
| 61 | Technology | 34 | 458 | 1191 | 1631 |
| 62 | Systems Engineering | 33 | 444 | 491 | 787 |
| 62 | Molecular Biology | 38 | 444 | 2732 | 4704 |
| 64 | Mathematics | 59 | 433 | 1717 | 2074 |
| 65 | Environmental Engineering | 26 | 418 | 1288 | 1993 |
| 66 | Electronics | 29 | 412 | 1268 | 1511 |
| 67 | Botany | 15 | 411 | 1960 | 2062 |
| 68 | polymerization | 36 | 399 | 1313 | 1835 |
| 69 | Pharmaceutical Chemistry | 10 | 388 | 2391 | 2154 |
| 70 | Mobile Computing | 5 | 387 | 1014 | 419 |
| 71 | Internet of Things | 14 | 381 | 455 | 502 |
| 72 | Electrical Engineering | 16 | 379 | 1745 | 1209 |
| 73 | Plant physiology | 12 | 365 | 1080 | 1303 |
| 74 | Quality Control | 12 | 363 | 757 | 709 |
| 75 | soil microbiology | 9 | 354 | 809 | 1045 |
| 75 | Optical materials | 14 | 354 | 1318 | 1523 |
| 77 | Mechanical Engineering | 36 | 347 | 626 | 835 |
| 78 | foods | 5 | 335 | 138 | 20 |
| 79 | Computer Engineering | 14 | 322 | 254 | 216 |
| 80 | actuators | 9 | 315 | 1306 | 1306 |
| 80 | transducers | 9 | 315 | 1306 | 1306 |
| 82 | Metals | 11 | 301 | 1132 | 1153 |
| 83 | internet | 15 | 297 | 597 | 790 |
| 84 | United States | 5 | 291 | 4359 | 2489 |
| 85 | silicon | 21 | 290 | 37 | 55 |
| 86 | Remote Sensing | 7 | 287 | 973 | 498 |
| 86 | Fuzzy systems | 18 | 287 | 483 | 488 |
| 88 | Computational Biology | 14 | 283 | 1319 | 1627 |
| 89 | Geographic information systems | 11 | 280 | 466 | 325 |
| 89 | Fracture mechanics | 5 | 280 | 1100 | 688 |
| 91 | Electrochemistry | 25 | 279 | 1486 | 2009 |
| 92 | Drug design | 14 | 270 | 676 | 998 |
| 93 | Environmental Microbiology | 8 | 265 | 793 | 1044 |
| 94 | Nanostructures | 13 | 261 | 1081 | 1378 |
| 95 | Microbial Ecology | 7 | 258 | 1540 | 1819 |
| 96 | Nutrition | 14 | 252 | 2091 | 2846 |
| 97 | Pharmacology | 25 | 249 | 2098 | 3516 |
| 97 | Molecular structure | 9 | 249 | 1460 | 1407 |
| 99 | Surface Chemistry | 15 | 248 | 1891 | 2386 |
| 99 | Educational Technology | 3 | 248 | 1588 | 742 |
| 101 | Solid State Physics | 20 | 246 | 1800 | 2143 |
| 102 | Statistical Mechanics | 13 | 244 | 450 | 316 |
| 103 | Industrial Engineering | 9 | 241 | 1124 | 1067 |
| 103 | Green Chemistry | 8 | 241 | 1143 | 1369 |
| 105 | Pharmacognosy | 5 | 238 | 1482 | 1272 |
| 106 | Computational Complexity | 6 | 231 | 725 | 306 |
| 107 | Solid State Chemistry | 12 | 230 | 1353 | 1382 |
| 108 | Earth Sciences | 15 | 229 | 1553 | 1983 |
| 109 | Mitochondria | 7 | 226 | 93 | 155 |
| 110 | Information Technology | 19 | 225 | 903 | 1381 |
| 111 | Drug delivery systems | 13 | 222 | 624 | 1192 |
| 112 | Cloud Computing | 12 | 219 | 77 | 125 |
| 113 | Intelligent Transportation Systems | 7 | 216 | 716 | 758 |
| 114 | Colloids | 17 | 214 | 1724 | 2633 |
| 115 | Medicinal plants | 4 | 208 | 1298 | 1059 |
| 116 | Nanostructured Materials | 11 | 207 | 1823 | 2177 |
| 117 | Photochemistry | 18 | 204 | 599 | 1103 |
| 118 | Information Science | 7 | 198 | 1677 | 1685 |
| 119 | Human-Computer Interaction | 8 | 196 | 934 | 981 |
| 120 | Computer Science | 15 | 195 | 855 | 979 |
| 121 | human behavior | 5 | 194 | 1834 | 2092 |
| 122 | Fractals | 13 | 191 | 468 | 682 |
| 123 | Toxicology | 10 | 187 | 2874 | 3613 |
| 124 | Neurology | 8 | 186 | 3403 | 4007 |
| 125 | nanoscience | 19 | 178 | 1249 | 2301 |
| 126 | mass transfer | 7 | 168 | 1110 | 1238 |
| 127 | Solitons | 10 | 165 | 473 | 684 |
| 127 | Chaos | 10 | 165 | 473 | 684 |
| 129 | Medical Technology | 7 | 164 | 1128 | 1273 |
| 129 | India | 25 | 164 | 258 | 402 |
| 131 | Telecommunications | 20 | 163 | 99 | 299 |
| 132 | Nanochemistry | 5 | 161 | 1009 | 757 |
| 133 | Analytical Biochemistry | 4 | 158 | 1617 | 1278 |
| 134 | Photobiology | 12 | 156 | 591 | 1012 |
| 135 | Ubiquitous computing | 8 | 154 | 53 | 30 |
| 136 | Nuclear Physics | 26 | 153 | 1840 | 2641 |
| 137 | consumer behavior | 1 | 152 | 914 | 420 |
| 138 | Smart Materials | 11 | 151 | 295 | 497 |
| 138 | Plant diseases | 9 | 151 | 1171 | 1367 |
| 140 | Food Safety | 1 | 147 | 511 | 94 |
| 141 | Spectrum analysis | 9 | 136 | 2675 | 3116 |
| 141 | Behavior | 3 | 136 | 3025 | 2903 |
| 143 | Civil Engineering | 21 | 135 | 614 | 907 |
| 144 | Alternative Medicine | 8 | 131 | 1109 | 1486 |
| 144 | Evidence-Based Medicine | 8 | 131 | 692 | 904 |
| 144 | complementary therapies | 8 | 131 | 1186 | 1536 |
| 147 | Industrial Microbiology | 5 | 127 | 1586 | 1978 |
| 148 | Neurochemistry | 5 | 124 | 1829 | 2141 |
| 148 | Microprocessors | 4 | 124 | 523 | 352 |
| 148 | Calorimetry | 6 | 124 | 789 | 739 |
| 148 | Thermal analysis | 6 | 124 | 789 | 739 |
| 152 | Chemical industry | 1 | 123 | 2211 | 845 |
| 153 | Optical Communications | 13 | 121 | 312 | 530 |
| 153 | Image Processing | 5 | 121 | 1788 | 1900 |
| 155 | Geriatrics | 9 | 120 | 1723 | 2281 |
| 155 | Public Health | 15 | 120 | 2661 | 4994 |
| 157 | Biophysics | 13 | 119 | 3127 | 4930 |
| 157 | Molecular Spectroscopy | 5 | 119 | 1417 | 1407 |
| 157 | Safety management | 8 | 119 | 213 | 273 |
| 157 | Aging | 8 | 119 | 1806 | 2275 |
| 161 | Computer Architecture | 6 | 118 | 350 | 282 |
| 162 | Medical Laboratory Science | 3 | 117 | 2306 | 2321 |
| 163 | Quality Assurance | 17 | 116 | 38 | 176 |
| 164 | Developmental Biology | 5 | 115 | 1540 | 2075 |
| 165 | Clinical Chemistry | 4 | 114 | 2657 | 2796 |
| 166 | Ocean Engineering | 4 | 113 | 1412 | 1440 |
| 166 | Diet | 4 | 113 | 1832 | 2348 |
| 168 | Geophysics | 5 | 110 | 2836 | 2987 |
| 169 | Software Engineering | 5 | 108 | 904 | 848 |
| 170 | Numerical Analysis | 11 | 107 | 1296 | 1598 |
| 170 | sustainability | 4 | 107 | 731 | 990 |
| 170 | Plastics | 7 | 107 | 1149 | 1332 |
| 173 | Diagnostic Imaging | 5 | 106 | 1717 | 1760 |
| 173 | Imaging systems | 4 | 106 | 720 | 423 |
| 175 | Radiation | 3 | 105 | 2216 | 1653 |
| 176 | Metallurgy | 11 | 104 | 1292 | 1888 |
| 176 | management | 7 | 104 | 2296 | 2834 |
| 178 | Signal Processing | 10 | 103 | 1499 | 2278 |
| 179 | Entrepreneurship | 4 | 102 | 864 | 1027 |
| 180 | energy resources | 1 | 101 | 2054 | 1779 |
| 181 | energy conservation | 6 | 99 | 1484 | 2378 |
| 182 | Hydrology | 3 | 97 | 2566 | 2205 |
| 183 | Tribology | 5 | 96 | 954 | 1042 |
| 183 | Detectors | 5 | 96 | 1309 | 1396 |
| 185 | Engineering Geology | 4 | 95 | 1283 | 1376 |
| 185 | Microwave circuits | 3 | 95 | 111 | 25 |
| 185 | Radio frequency | 3 | 95 | 564 | 468 |
| 188 | Bioorganic chemistry | 9 | 94 | 1777 | 2744 |
| 189 | Health Information Management | 1 | 93 | 598 | 618 |
| 190 | Robotics | 4 | 92 | 1571 | 1549 |
| 191 | machinery | 5 | 91 | 594 | 651 |
| 191 | China | 6 | 91 | 2155 | 2560 |
| 193 | Heat Exchangers | 2 | 90 | 1426 | 1362 |
| 193 | Luminescence | 8 | 90 | 787 | 1080 |
| 195 | Adhesion | 2 | 89 | 879 | 517 |
| 195 | Social Change | 5 | 89 | 726 | 1263 |
| 195 | adhesives | 2 | 89 | 937 | 522 |
| 198 | Environmental Geology | 3 | 88 | 1704 | 1700 |
| 198 | Friction | 1 | 88 | 224 | 133 |
| 198 | Business | 5 | 88 | 1768 | 2025 |
| 201 | data protection | 9 | 87 | 182 | 371 |
| 202 | Geology | 7 | 86 | 2111 | 2526 |
| 203 | Heterocyclic chemistry | 7 | 84 | 259 | 238 |
| 203 | Asymmetric synthesis | 7 | 84 | 28 | 34 |
| 203 | System analysis | 5 | 84 | 2020 | 2208 |
| 206 | Physiology | 5 | 83 | 3322 | 4146 |
| 207 | Sustainable Architecture | 5 | 82 | 68 | 52 |
| 207 | Biosensors | 3 | 82 | 1316 | 1875 |
| 207 | Bioelectronics | 3 | 82 | 1137 | 1737 |
| 207 | educational innovations | 1 | 82 | 930 | 462 |
| 211 | Signal Transduction | 3 | 80 | 1474 | 1755 |
| 211 | Semiconductors | 10 | 80 | 1155 | 1738 |
| 213 | Computational Linguistics | 5 | 78 | 363 | 310 |
| 214 | Herbal medicine | 2 | 77 | 922 | 1043 |
| 214 | Environmental Geochemistry | 3 | 77 | 506 | 540 |
| 214 | Minerals | 3 | 77 | 781 | 808 |
| 217 | global environmental change | 2 | 76 | 1054 | 1163 |
| 217 | marketing | 5 | 76 | 1433 | 1800 |
| 217 | Industry | 5 | 76 | 80 | 464 |
| 220 | Semantic web | 6 | 75 | 67 | 166 |
| 221 | Cognitive Science | 3 | 74 | 1503 | 1656 |
| 221 | East Asia | 4 | 74 | 527 | 395 |
| 223 | environmental indicators | 1 | 72 | 1747 | 1511 |
| 224 | Photonics | 3 | 71 | 1913 | 2041 |
| 225 | Measurement | 2 | 70 | 1672 | 1356 |
| 225 | Small Business | 2 | 70 | 899 | 1060 |
| 227 | Structural Engineering | 4 | 69 | 1469 | 1580 |
| 228 | Oncology | 3 | 68 | 2365 | 3254 |
| 228 | Total Quality Management | 7 | 68 | 216 | 573 |
| 228 | Asia | 14 | 68 | 1196 | 2368 |
| 231 | Water quality management | 5 | 67 | 1486 | 1923 |
| 231 | Intelligent Control Systems | 5 | 67 | 867 | 807 |
| 233 | Plant Ecology | 3 | 64 | 1716 | 2193 |
| 233 | Quantum Gravity | 5 | 64 | 1592 | 1739 |
| 233 | Magnetic Materials | 4 | 64 | 1422 | 1573 |
| 233 | particles | 4 | 64 | 871 | 1089 |
| 233 | Radiation effects | 3 | 64 | 644 | 896 |
| 238 | Microelectronics | 5 | 63 | 1477 | 1989 |
| 239 | Structural design | 3 | 61 | 716 | 719 |
| 239 | Public Administration | 5 | 61 | 1072 | 1151 |
| 239 | Mathematical Physics | 10 | 61 | 1777 | 2311 |
| 242 | Mental Disorders | 4 | 60 | 2632 | 3520 |
| 243 | Mental illness | 3 | 59 | 1983 | 2580 |
| 244 | peptides | 5 | 58 | 701 | 934 |
| 244 | Drug discovery | 8 | 58 | 82 | 356 |
| 244 | proteins | 5 | 58 | 1746 | 2423 |
| 247 | Industrial Organization | 1 | 57 | 549 | 358 |
| 247 | Medical Oncology | 3 | 57 | 1737 | 2364 |
| 247 | Mechanics | 11 | 57 | 629 | 1164 |
| 247 | Biodiversity | 3 | 57 | 2334 | 2674 |
| 251 | Nanoparticles | 7 | 56 | 1281 | 2253 |
| 252 | Public Relations | 4 | 54 | 368 | 447 |
| 253 | Food Preservation | 6 | 53 | 476 | 760 |
| 253 | Microwaves | 5 | 53 | 1189 | 1384 |
| 253 | miniaturization | 5 | 53 | 1470 | 2467 |
| 256 | Economics | 9 | 51 | 2614 | 3577 |
| 256 | Integrated Circuits | 4 | 51 | 760 | 553 |
| 258 | Radio wave propagation | 4 | 50 | 768 | 865 |
| 259 | Immunotherapy | 11 | 48 | 956 | 2730 |
| 259 | Light | 6 | 48 | 651 | 1408 |
| 259 | Vaccines | 11 | 48 | 960 | 2531 |
| 262 | Statistics | 5 | 47 | 2102 | 2422 |
| 262 | Nuclear Engineering | 1 | 47 | 2426 | 1583 |
| 262 | Materials Engineering | 3 | 47 | 767 | 738 |
| 262 | Biopharmaceutics | 7 | 47 | 743 | 1673 |
| 262 | Nuclear Fusion | 1 | 47 | 891 | 571 |
| 262 | Environmental Chemistry | 3 | 47 | 2251 | 3003 |
| 262 | fusion reactors | 1 | 47 | 733 | 403 |
| 269 | Pharmacy | 8 | 46 | 1300 | 2806 |
| 269 | Swarm Intelligence | 1 | 46 | 528 | 489 |
| 271 | technology transfer | 4 | 45 | 157 | 443 |
| 271 | Globalization | 4 | 45 | 445 | 779 |
| 271 | Plants | 7 | 45 | 1435 | 2628 |
| 274 | Marine Biology | 1 | 44 | 3518 | 3095 |
| 274 | Ecohydrology | 1 | 44 | 720 | 513 |
| 274 | freshwater biology | 1 | 44 | 1525 | 1252 |
| 274 | Fisheries | 1 | 44 | 2478 | 1918 |
| 278 | plant molecular biology | 5 | 43 | 1120 | 2309 |
| 279 | Genetics | 5 | 42 | 3122 | 5220 |
| 279 | Water pollution | 4 | 42 | 2403 | 3654 |
| 279 | Biotransformation | 3 | 42 | 108 | 149 |
| 279 | Transnational corporations | 1 | 42 | 642 | 525 |
| 279 | International Finance | 1 | 42 | 2222 | 1856 |
| 279 | geological modeling | 2 | 42 | 623 | 610 |
| 279 | finance | 4 | 42 | 2046 | 2349 |
| 279 | enzymes | 3 | 42 | 1526 | 2175 |
| 287 | Algorithms | 2 | 41 | 917 | 791 |
| 287 | Biodegradation | 3 | 41 | 739 | 1301 |
| 289 | Computer Graphics | 5 | 40 | 1364 | 2082 |
| 289 | Astrophysics | 5 | 40 | 2360 | 3059 |
| 289 | Nonlinear Dynamics | 4 | 40 | 1845 | 2347 |
| 289 | drug evaluation | 3 | 40 | 1445 | 2012 |
| 293 | Virology | 5 | 39 | 2427 | 4374 |
| 293 | Plant tissue culture | 4 | 39 | 628 | 1123 |
| 293 | Mineral resources | 2 | 39 | 744 | 1019 |
| 293 | Plant cell culture | 4 | 39 | 548 | 1110 |
| 297 | Electrochemical Analysis | 2 | 38 | 1784 | 1968 |
| 297 | Mycology | 2 | 38 | 1926 | 2100 |
| 297 | commerce | 2 | 38 | 2010 | 1862 |
| 297 | Fungi | 1 | 38 | 1585 | 1504 |
| 301 | Food Science | 1 | 37 | 481 | 218 |
| 301 | Computer Vision | 2 | 37 | 1384 | 1711 |
| 303 | Genetic engineering | 6 | 36 | 1645 | 3301 |
| 303 | Soft Condensed Matter | 5 | 36 | 855 | 1534 |
| 305 | consumers | 2 | 35 | 447 | 571 |
| 305 | Sales Promotion | 2 | 35 | 112 | 144 |
| 305 | Investments | 1 | 35 | 1051 | 707 |
| 308 | Systems Theory | 4 | 34 | 507 | 627 |
| 308 | Pharmaceutical Technology | 2 | 34 | 1907 | 2329 |
| 308 | Microbial Biotechnology | 4 | 34 | 830 | 1682 |
| 308 | Water | 1 | 34 | 3583 | 3723 |
| 308 | bioluminescence | 6 | 34 | 173 | 432 |
| 308 | medical education | 53 | 34 | 271 | 2296 |
| 314 | Cytology | 6 | 33 | 3154 | 5705 |
| 314 | Organic Chemistry | 2 | 33 | 3517 | 3788 |
| 314 | Cell Biology | 5 | 33 | 3236 | 5624 |
| 314 | Expert Systems | 2 | 33 | 278 | 306 |
| 314 | Export Marketing | 1 | 33 | 401 | 453 |
| 314 | pharmaceutical industry | 1 | 33 | 1113 | 916 |
| 320 | Histology | 1 | 32 | 2794 | 2827 |
| 320 | Energy Conversion | 1 | 32 | 1798 | 1919 |
| 320 | Building Materials | 4 | 32 | 1488 | 2461 |
| 320 | Energy Storage | 1 | 32 | 1923 | 1763 |
| 320 | Dynamics | 5 | 32 | 1486 | 2014 |
| 320 | Number Theory | 3 | 32 | 824 | 689 |
| 320 | Technological Innovations | 2 | 32 | 1347 | 1590 |
| 320 | fuel cells | 1 | 32 | 1843 | 1827 |
| 320 | Reproduction | 2 | 32 | 2638 | 3117 |
| 320 | Host-parasite interactions | 4 | 32 | 1036 | 2304 |
| 320 | Immunity | 1 | 32 | 2823 | 3225 |
| 331 | Agricultural Engineering | 4 | 31 | 410 | 809 |
| 331 | Architectural Design | 4 | 31 | 382 | 529 |
| 331 | Building | 4 | 31 | 644 | 964 |
| 334 | Epidemiology | 4 | 30 | 3377 | 5502 |
| 334 | Meteorology | 1 | 30 | 3234 | 3356 |
| 334 | Climatology | 1 | 30 | 2553 | 2503 |
| 334 | Animal Behavior | 4 | 30 | 1558 | 2792 |
| 334 | Green Technology | 6 | 30 | 184 | 788 |
| 334 | Rheology | 3 | 30 | 524 | 792 |
| 334 | bioclimatology | 1 | 30 | 1584 | 1528 |
| 334 | Cancer | 1 | 30 | 5177 | 5334 |
| 342 | Geochemistry | 3 | 29 | 1903 | 2818 |
| 342 | Geodesy | 3 | 29 | 805 | 1168 |
| 342 | Communication | 3 | 29 | 2120 | 2704 |
| 342 | energy development | 2 | 29 | 1176 | 1636 |
| 342 | biomedicine | 3 | 29 | 996 | 1646 |
| 347 | Environmental pollutants | 4 | 28 | 2041 | 3618 |
| 347 | cytokines | 1 | 28 | 2199 | 2424 |
| 347 | Growth factors | 1 | 28 | 558 | 779 |
| 347 | Cytokine | 1 | 28 | 752 | 936 |
| 351 | Molecular evolution | 3 | 27 | 1548 | 2688 |
| 351 | Qualitative Research | 1 | 27 | 861 | 746 |
| 351 | Heterocyclic compounds | 4 | 27 | 896 | 1233 |
| 354 | Emerging infectious diseases | 1 | 26 | 716 | 839 |
| 354 | Tourism | 6 | 26 | 1129 | 2400 |
| 354 | Watershed management | 1 | 26 | 494 | 379 |
| 357 | Environmental Toxicology | 4 | 25 | 2196 | 4059 |
| 357 | Oral Medicine | 2 | 25 | 846 | 961 |
| 357 | Physical Chemistry | 7 | 25 | 1577 | 3141 |
| 360 | Bioinformatics | 4 | 24 | 1938 | 3274 |
| 361 | Ethics | 1 | 23 | 1646 | 1427 |
| 361 | Human Rights | 1 | 23 | 1040 | 831 |
| 361 | microwave antennas | 1 | 23 | 734 | 602 |
| 361 | Bifurcation Theory | 2 | 23 | 863 | 926 |
| 361 | Social Entrepreneurship | 1 | 23 | 281 | 345 |
| 361 | Ethology | 1 | 23 | 2091 | 2493 |
| 361 | Organometallic compounds | 3 | 23 | 1271 | 1842 |
| 361 | Psychophysiology | 1 | 23 | 3669 | 4075 |
| 361 | Agriculture | 6 | 23 | 1664 | 3366 |
| 370 | Environmental Law | 1 | 22 | 1807 | 2309 |
| 370 | Nuclear Chemistry | 2 | 22 | 1345 | 1430 |
| 370 | Organizational learning | 2 | 22 | 659 | 760 |
| 370 | Radiochemistry | 2 | 22 | 1291 | 1336 |
| 370 | Waste management | 3 | 22 | 1549 | 2367 |
| 370 | Water Purification | 3 | 22 | 1247 | 1987 |
| 370 | Knowledge management | 3 | 22 | 539 | 820 |
| 370 | Radioisotopes | 1 | 22 | 1917 | 1649 |
| 370 | natural products | 3 | 22 | 1851 | 2574 |
| 370 | Steroids | 2 | 22 | 1193 | 1754 |
| 370 | drug toxicity | 2 | 22 | 611 | 1145 |
| 370 | pigments | 1 | 22 | 1328 | 1498 |
| 382 | Law | 1 | 21 | 2357 | 1241 |
| 382 | Cosmology | 4 | 21 | 1213 | 1498 |
| 382 | Africa | 4 | 21 | 1473 | 2219 |
| 382 | Capital market | 2 | 21 | 504 | 835 |
| 382 | Australia | 1 | 21 | 3173 | 2879 |
| 387 | Particle Physics | 3 | 20 | 812 | 944 |
| 387 | Corporate governance | 1 | 20 | 1035 | 1162 |
| 387 | Chromosome mapping | 2 | 20 | 2245 | 3446 |
| 387 | biological factors | 1 | 20 | 3039 | 3236 |
| 387 | viruses | 4 | 20 | 1309 | 2729 |
| 387 | gene mapping | 2 | 20 | 2436 | 3730 |
| 393 | Mineralogy | 1 | 19 | 2015 | 1989 |
| 393 | Microcirculation | 1 | 19 | 816 | 974 |
| 393 | Molecules | 2 | 19 | 1702 | 1910 |
| 393 | plasma spraying | 1 | 19 | 448 | 536 |
| 393 | Blood vessels | 1 | 19 | 680 | 826 |
| 398 | Social Sciences | 3 | 18 | 3792 | 4622 |
| 398 | Ultrasonics | 2 | 18 | 1496 | 2387 |
| 398 | Sonochemistry | 2 | 18 | 750 | 1547 |
| 398 | Entropy | 1 | 18 | 1974 | 1818 |
| 398 | Parasitology | 1 | 18 | 3395 | 3661 |
| 398 | Parasitic Diseases | 1 | 18 | 3008 | 3454 |
| 398 | disease vectors | 1 | 18 | 1615 | 1978 |
| 398 | Parasites | 1 | 18 | 2394 | 2662 |
| 398 | biopolymers | 2 | 18 | 1431 | 2064 |
| 407 | Solar Energy | 1 | 17 | 2562 | 3052 |
| 407 | Surface-Active Agents | 1 | 17 | 1792 | 2344 |
| 407 | micromechanics | 1 | 17 | 905 | 1057 |
| 407 | Molecular dynamics | 1 | 17 | 51 | 44 |
| 407 | Pesticides | 1 | 17 | 1199 | 1345 |
| 407 | Surface properties | 1 | 17 | 1867 | 2433 |
| 407 | infection | 4 | 17 | 1489 | 3127 |
| 407 | natural gas | 1 | 17 | 772 | 897 |
| 415 | Medical Microbiology | 1 | 16 | 3408 | 4269 |
| 415 | Combustion | 2 | 16 | 1446 | 2053 |
| 415 | Refractory materials | 2 | 16 | 193 | 162 |
| 415 | electrocatalysis | 1 | 16 | 227 | 313 |
| 419 | Photography | 2 | 15 | 2958 | 1865 |
| 419 | Probability | 1 | 15 | 1003 | 1127 |
| 419 | Risk Management | 2 | 15 | 908 | 1497 |
| 419 | Atmospheric Physics | 1 | 15 | 2193 | 2574 |
| 419 | Financial management | 1 | 15 | 860 | 1154 |
| 419 | Risk | 1 | 15 | 959 | 1145 |
| 419 | Protective coatings | 2 | 15 | 200 | 310 |
| 419 | water reuse | 1 | 15 | 566 | 818 |
| 427 | Cybernetics | 3 | 14 | 1613 | 2762 |
| 427 | Earthquake Engineering | 1 | 14 | 1811 | 2143 |
| 427 | Simulation Methods | 2 | 14 | 1278 | 1857 |
| 427 | Carbon | 1 | 14 | 1933 | 2536 |
| 427 | food service | 1 | 14 | 201 | 166 |
| 427 | Microorganisms | 1 | 14 | 1691 | 2270 |
| 427 | ozone | 1 | 14 | 282 | 384 |
| 427 | scientific societies | 3 | 14 | 772 | 1634 |
| 427 | textile fibers | 1 | 14 | 809 | 865 |
| 427 | Metrology | 1 | 14 | 236 | 201 |
| 427 | Entomology | 7 | 14 | 1618 | 3329 |
| 438 | Information Theory | 1 | 13 | 2090 | 2201 |
| 438 | Genetic Toxicology | 1 | 13 | 892 | 1316 |
| 438 | Mining Geology | 1 | 13 | 193 | 203 |
| 438 | Sleep Disorders | 3 | 13 | 1615 | 2735 |
| 438 | Cognitive Radio Networks | 1 | 13 | 392 | 461 |
| 438 | Mass Media | 2 | 13 | 1182 | 1103 |
| 438 | Fiber Optics | 3 | 13 | 1037 | 1742 |
| 438 | Cardiovascular diseases | 3 | 13 | 1665 | 2929 |
| 438 | Chemical analysis | 1 | 13 | 1855 | 2296 |
| 438 | Chromosomes | 1 | 13 | 1542 | 1975 |
| 438 | Evolution | 4 | 13 | 1606 | 3399 |
| 438 | Sleep | 3 | 13 | 1618 | 2761 |
| 450 | Soil Mechanics | 1 | 12 | 1716 | 1924 |
| 450 | Rock Mechanics | 1 | 12 | 1410 | 1649 |
| 450 | Solar power plants | 1 | 12 | 396 | 662 |
| 450 | Molecular cloning | 2 | 12 | 1846 | 2939 |
| 450 | Genetic recombination | 2 | 12 | 1819 | 2893 |
| 450 | economic policy | 2 | 12 | 2905 | 3402 |
| 450 | Photovoltaic Cells | 1 | 12 | 398 | 663 |
| 450 | solar cells | 1 | 12 | 1456 | 1999 |
| 450 | Radio | 4 | 12 | 1419 | 2702 |
| 450 | concrete | 2 | 12 | 1198 | 1858 |
| 450 | Recombinant DNA | 2 | 12 | 1923 | 3060 |
| 450 | RNA | 1 | 12 | 865 | 1243 |
| 450 | synthesis | 1 | 12 | 1701 | 1790 |
| 450 | Developing countries | 2 | 12 | 2910 | 4261 |
| 464 | Optoelectronics | 1 | 11 | 1040 | 1020 |
| 464 | Feminism | 1 | 11 | 1009 | 994 |
| 464 | Ceramic materials | 5 | 11 | 1058 | 2418 |
| 464 | Peroxisomes | 1 | 11 | 207 | 391 |
| 464 | Biomass | 1 | 11 | 1123 | 1776 |
| 464 | women | 1 | 11 | 1441 | 1419 |
| 464 | environmental issues | 1 | 11 | 817 | 1250 |
| 464 | Egypt | 1 | 11 | 1036 | 1498 |
| 472 | Soil Science | 4 | 10 | 1679 | 3305 |
| 472 | Cryptography | 1 | 10 | 1128 | 1045 |
| 472 | Physical organic chemistry | 2 | 10 | 1672 | 2446 |
| 472 | Molecular recognition | 2 | 10 | 291 | 715 |
| 472 | Biomechanics | 4 | 10 | 1264 | 2791 |
| 472 | Emulsions | 1 | 10 | 740 | 902 |
| 472 | investigative techniques | 1 | 10 | 302 | 543 |
| 472 | mathematical analysis | 6 | 10 | 1874 | 2940 |
| 480 | Applied Mathematics | 4 | 9 | 903 | 1434 |
| 480 | Adult Education | 1 | 9 | 1007 | 1126 |
| 480 | Telemedicine | 2 | 9 | 492 | 1263 |
| 480 | Indoor air quality | 1 | 9 | 217 | 287 |
| 480 | Air Conditioning | 1 | 9 | 417 | 522 |
| 480 | Gerontology | 1 | 9 | 3093 | 3410 |
| 480 | Ventilation | 1 | 9 | 1006 | 1369 |
| 480 | heating | 1 | 9 | 325 | 438 |
| 488 | Operations Research | 3 | 8 | 2124 | 3496 |
| 488 | Adsorption | 1 | 8 | 410 | 613 |
| 488 | Medical innovations | 1 | 8 | 1731 | 2789 |
| 488 | Porous materials | 1 | 8 | 1296 | 1640 |
| 488 | Alloys | 2 | 8 | 385 | 577 |
| 488 | Middle East | 1 | 8 | 1744 | 1783 |
| 488 | World Wide Web | 3 | 8 | 447 | 992 |
| 495 | Endocrinology | 3 | 7 | 2953 | 5543 |
| 495 | Thermodynamics | 1 | 7 | 1964 | 2172 |
| 495 | Pharmacokinetics | 4 | 7 | 807 | 2325 |
| 495 | symbiosis | 1 | 7 | 319 | 574 |
| 495 | Animal ecology | 3 | 7 | 1172 | 2317 |
| 495 | Continuum Mechanics | 1 | 7 | 313 | 455 |
| 495 | food handling | 1 | 7 | 1493 | 2277 |
| 495 | Metallography | 4 | 7 | 693 | 1843 |
| 495 | drug development | 3 | 7 | 1078 | 2849 |
| 495 | biological evolution | 3 | 7 | 2034 | 4110 |
| 495 | Insects | 2 | 7 | 1757 | 2656 |
| 495 | Breeding | 1 | 7 | 1852 | 2453 |
| 507 | Dentistry | 1 | 6 | 1173 | 1422 |
| 507 | Pathology | 2 | 6 | 2774 | 4866 |
| 507 | Graph Theory | 2 | 6 | 941 | 1230 |
| 507 | Quality Management | 2 | 6 | 247 | 562 |
| 507 | Sustainable urban development | 1 | 6 | 141 | 253 |
| 507 | Carcinogenesis | 2 | 6 | 1236 | 2448 |
| 507 | Risk assessment | 1 | 6 | 1235 | 1786 |
| 507 | ecological risk assessment | 1 | 6 | 576 | 959 |
| 507 | Art and Science | 2 | 6 | 53 | 39 |
| 507 | Ferroelectricity | 2 | 6 | 1279 | 1846 |
| 507 | Smart Cities | 1 | 6 | 32 | 78 |
| 507 | international trade | 1 | 6 | 1232 | 1561 |
| 507 | Edible plants | 1 | 6 | 454 | 851 |
| 507 | labor | 1 | 6 | 636 | 700 |
| 507 | Trademarks | 4 | 6 | 60 | 462 |
| 507 | concepts | 2 | 6 | 157 | 318 |
| 507 | industrial relations | 1 | 6 | 1311 | 1659 |
| 507 | heredity | 1 | 6 | 1181 | 1631 |
| 507 | Combinatorial analysis | 2 | 6 | 1240 | 1514 |
| 507 | Health Risk Assessment | 1 | 6 | 954 | 1400 |
| 507 | Informatics | 1 | 6 | 1423 | 1987 |
| 528 | Aerospace Engineering | 1 | 5 | 810 | 996 |
| 528 | Pharmacogenetics | 1 | 5 | 1662 | 2510 |
| 528 | Pharmacogenomics | 1 | 5 | 617 | 1070 |
| 528 | Psychopharmacology | 1 | 5 | 2238 | 3106 |
| 528 | Precision medicine | 1 | 5 | 434 | 660 |
| 528 | Fermentation | 1 | 5 | 505 | 720 |
| 528 | Bioremediation | 2 | 5 | 1128 | 2297 |
| 528 | Land use | 1 | 5 | 1867 | 2696 |
| 528 | soil conservation | 1 | 5 | 1396 | 1967 |
| 528 | Neuropharmacology | 1 | 5 | 1027 | 1482 |
| 528 | Portfolio Management | 1 | 5 | 533 | 634 |
| 528 | land degradation | 1 | 5 | 948 | 1434 |
| 528 | brewing | 1 | 5 | 442 | 564 |
| 528 | degradation | 1 | 5 | 948 | 1434 |
| 542 | Humanities | 2 | 4 | 2478 | 3648 |
| 542 | Sociology | 1 | 4 | 4713 | 6040 |
| 542 | Economic History | 5 | 4 | 2941 | 5628 |
| 542 | Environmental Economics | 1 | 4 | 805 | 1276 |
| 542 | Plant Biotechnology | 3 | 4 | 835 | 1933 |
| 542 | vibration | 1 | 4 | 1924 | 2518 |
| 542 | Biogeochemistry | 1 | 4 | 1680 | 2525 |
| 542 | Noise | 1 | 4 | 330 | 480 |
| 542 | Metabolic diseases | 3 | 4 | 2263 | 4883 |
| 542 | Obesity | 2 | 4 | 2364 | 4458 |
| 542 | Malaria | 2 | 4 | 915 | 1892 |
| 542 | Sound | 1 | 4 | 1739 | 2244 |
| 542 | Hormones | 1 | 4 | 2006 | 2919 |
| 542 | sleep-wake cycle | 1 | 4 | 290 | 484 |
| 542 | herbs | 1 | 4 | 165 | 340 |
| 542 | cell interaction | 1 | 4 | 1929 | 2816 |
| 542 | genome | 1 | 4 | 2506 | 3617 |
| 542 | rehabilitation | 1 | 4 | 3525 | 5019 |
| 542 | Fluorescence | 2 | 4 | 599 | 1339 |
| 542 | Pancreatic diseases | 1 | 4 | 614 | 932 |
| 542 | vitamins | 1 | 4 | 317 | 676 |
| 563 | Computational Chemistry | 1 | 3 | 1113 | 1602 |
| 563 | Occupational Health | 3 | 3 | 1112 | 2724 |
| 563 | Asthma | 1 | 3 | 1206 | 1899 |
| 563 | Agricultural Chemistry | 1 | 3 | 3397 | 4536 |
| 563 | Ceramics | 1 | 3 | 2355 | 2953 |
| 563 | Metabolism | 2 | 3 | 3209 | 5815 |
| 563 | Human Geography | 1 | 3 | 1715 | 2387 |
| 563 | Psychiatric Nursing | 1 | 3 | 1128 | 1699 |
| 563 | Ecophysiology | 2 | 3 | 323 | 917 |
| 563 | industrial hygiene | 3 | 3 | 1154 | 2774 |
| 563 | Water quality | 1 | 3 | 511 | 1052 |
| 563 | nuclear magnetic resonance | 1 | 3 | 1524 | 2057 |
| 563 | Magnetic Resonance Spectroscopy | 1 | 3 | 1719 | 2339 |
| 563 | Mobile Commerce | 1 | 3 | 730 | 1004 |
| 563 | Plant hormones | 1 | 3 | 598 | 1065 |
| 563 | Water chemistry | 1 | 3 | 736 | 1316 |
| 563 | Fibers | 1 | 3 | 234 | 354 |
| 563 | drugs | 2 | 3 | 2735 | 5010 |
| 581 | Psychology | 1 | 2 | 7024 | 9320 |
| 581 | Geography | 1 | 2 | 3374 | 4584 |
| 581 | Rheumatology | 2 | 2 | 1408 | 2602 |
| 581 | Surgery | 1 | 2 | 2769 | 3919 |
| 581 | Kinesiology | 1 | 2 | 357 | 624 |
| 581 | Orthopedics | 1 | 2 | 2430 | 3375 |
| 581 | Data Mining | 4 | 2 | 1398 | 4396 |
| 581 | Horticulture | 2 | 2 | 1023 | 1956 |
| 581 | Databases | 1 | 2 | 622 | 1006 |
| 581 | Microbial Genetics | 2 | 2 | 438 | 1067 |
| 581 | Orthopedic Surgery | 1 | 2 | 1399 | 2098 |
| 581 | Differential Equations | 1 | 2 | 1486 | 1857 |
| 581 | Integrated Optics | 2 | 2 | 89 | 295 |
| 581 | Photogrammetry | 1 | 2 | 1497 | 1800 |
| 581 | preventive medicine | 1 | 2 | 2074 | 3342 |
| 581 | Seed technology | 1 | 2 | 32 | 72 |
| 581 | Behavioral research | 1 | 2 | 988 | 1863 |
| 581 | E-Learning | 1 | 2 | 83 | 216 |
| 581 | Food additives | 1 | 2 | 1907 | 2861 |
| 581 | environmental remediation | 1 | 2 | 784 | 1383 |
| 581 | Exercise therapy | 3 | 2 | 396 | 1279 |
| 581 | big data | 3 | 2 | 584 | 1938 |
| 581 | Drug delivery devices | 2 | 2 | 326 | 982 |
| 581 | Taste | 1 | 2 | 582 | 1031 |
| 581 | landscapes | 1 | 2 | 411 | 736 |
| 581 | flavor | 1 | 2 | 411 | 793 |
| 581 | Chemical processes | 1 | 2 | 1131 | 1797 |
| 581 | smell | 1 | 2 | 582 | 1031 |
| 581 | Seeds | 1 | 2 | 34 | 73 |
| 581 | Web-based instruction | 1 | 2 | 106 | 299 |
| 581 | hydrocolloids | 1 | 2 | 977 | 1560 |
| 581 | Longevity | 1 | 2 | 394 | 819 |
| 581 | Microscopy | 1 | 2 | 2606 | 3498 |
| 581 | Vegetation | 2 | 2 | 120 | 461 |
| 581 | Microwave devices | 1 | 2 | 818 | 1146 |
| 581 | Cell metabolism | 1 | 2 | 1180 | 1944 |
| 581 | Chemical reactors | 1 | 2 | 158 | 293 |
| 581 | Nonlinear systems | 5 | 2 | 465 | 1537 |
| 619 | Psychiatry | 2 | 1 | 4881 | 8376 |
| 619 | Marine Engineering | 1 | 1 | 562 | 824 |
| 619 | Dermatology | 1 | 1 | 2482 | 3587 |
| 619 | Mechatronics | 1 | 1 | 1513 | 2323 |
| 619 | Pediatric Endocrinology | 1 | 1 | 619 | 1023 |
| 619 | Health Policy | 2 | 1 | 2839 | 5933 |
| 619 | Naval Architecture | 1 | 1 | 604 | 976 |
| 619 | Palliative Care | 1 | 1 | 1499 | 2420 |
| 619 | Regional Planning | 1 | 1 | 2365 | 3370 |
| 619 | Hypertension | 1 | 1 | 2300 | 3486 |
| 619 | Aerodynamics | 1 | 1 | 196 | 311 |
| 619 | Sports Medicine | 1 | 1 | 3624 | 4740 |
| 619 | Sustainable agriculture | 2 | 1 | 951 | 2213 |
| 619 | Child | 3 | 1 | 2397 | 5438 |
| 619 | Biological Systems | 2 | 1 | 1041 | 2345 |
| 619 | Travel | 1 | 1 | 1504 | 2565 |
| 619 | Laser therapy | 1 | 1 | 850 | 1373 |
| 619 | Social Systems | 2 | 1 | 290 | 926 |
| 619 | Eating Disorders | 1 | 1 | 1292 | 2045 |
| 619 | Infertility | 1 | 1 | 1311 | 2020 |
| 619 | Feeding and Eating Disorders | 1 | 1 | 1242 | 1967 |
| 619 | civilization | 1 | 1 | 2021 | 2028 |
| 619 | breastfeeding | 1 | 1 | 916 | 1563 |
| 619 | Adolescent | 1 | 1 | 3305 | 4878 |
| 619 | irrigation | 4 | 1 | 365 | 1255 |
| 619 | Metabolic disorders in children | 1 | 1 | 571 | 954 |
| 619 | Bacterial infections | 1 | 1 | 1494 | 2596 |
| 619 | Transplantation | 1 | 1 | 1604 | 2410 |
| 619 | drainage | 4 | 1 | 327 | 1137 |
| 619 | Tropical Medicine | 1 | 1 | 2976 | 4456 |
| 619 | Product life cycle | 1 | 1 | 605 | 1141 |
| 619 | Chemical structure | 1 | 1 | 1030 | 1591 |
| 619 | probabilities | 1 | 1 | 1840 | 2394 |
| 619 | city planning | 1 | 1 | 2542 | 3734 |
| 619 | biological agents | 1 | 1 | 1234 | 1776 |
| 619 | Chromatographic analysis | 1 | 1 | 2947 | 4197 |
| 619 | fertility | 1 | 1 | 1406 | 2159 |
| 656 | Education | 1 | 0 | 5673 | 7723 |
| 656 | Radiology | 1 | 0 | 2343 | 3587 |
| 656 | Mining Engineering | 1 | 0 | 1019 | 1567 |
| 656 | Immunology | 1 | 0 | 5223 | 7164 |
| 656 | Ophthalmology | 2 | 0 | 2031 | 3854 |
| 656 | Occupational Therapy | 1 | 0 | 1760 | 2832 |
| 656 | Urology | 1 | 0 | 2474 | 3739 |
| 656 | Nursing | 1 | 0 | 2926 | 4498 |
| 656 | Physical Therapy | 1 | 0 | 2019 | 3110 |
| 656 | Obstetrics | 2 | 0 | 2700 | 5143 |
| 656 | Pediatrics | 1 | 0 | 3679 | 5695 |
| 656 | Global Health | 1 | 0 | 1993 | 3548 |
| 656 | Mass Communication | 1 | 0 | 35 | 90 |
| 656 | Information Systems | 1 | 0 | 2465 | 4005 |
| 656 | Pediatric Hematology | 1 | 0 | 648 | 1099 |
| 656 | Sustainable Engineering | 1 | 0 | 2451 | 3648 |
| 656 | Health Services Research | 1 | 0 | 2909 | 4874 |
| 656 | Critical Care | 1 | 0 | 2368 | 3713 |
| 656 | Public Health Administration | 1 | 0 | 685 | 1114 |
| 656 | Clinical Pharmacology | 1 | 0 | 2349 | 3672 |
| 656 | Music | 1 | 0 | 1495 | 2177 |
| 656 | Diabetes mellitus | 1 | 0 | 3060 | 4868 |
| 656 | Hemostasis | 1 | 0 | 1193 | 1964 |
| 656 | epidemiologic methods | 1 | 0 | 354 | 793 |
| 656 | Thrombosis | 1 | 0 | 1559 | 2541 |
| 656 | Anti-inflammatory agents | 1 | 0 | 464 | 991 |
| 656 | Transportation | 1 | 0 | 2463 | 3688 |
| 656 | voice | 1 | 0 | 778 | 1345 |
| 656 | Climate change | 1 | 0 | 1642 | 2629 |
| 656 | Water Conservation | 1 | 0 | 199 | 530 |
| 656 | Helminthology | 1 | 0 | 322 | 646 |
| 656 | Crisis management | 1 | 0 | 356 | 788 |
| 656 | Primary health care | 1 | 0 | 2935 | 4914 |
| 656 | Metabolic syndrome | 1 | 0 | 564 | 1247 |
| 656 | Bipolar Disorder | 2 | 0 | 419 | 987 |
| 656 | Child Development | 2 | 0 | 2194 | 4394 |
| 656 | Autoimmunity | 1 | 0 | 1154 | 1944 |
| 656 | Business Intelligence | 1 | 0 | 122 | 342 |
| 656 | Organ transplantation | 1 | 0 | 591 | 1013 |
| 656 | Inflammation | 1 | 0 | 2033 | 3194 |
| 656 | Data Warehousing | 2 | 0 | 42 | 292 |
| 656 | Child psychology | 1 | 0 | 2180 | 3363 |
| 656 | Food Security | 1 | 0 | 336 | 751 |
| 656 | mycoses | 1 | 0 | 1381 | 2195 |
| 656 | nucleic acids | 1 | 0 | 2542 | 3770 |
| 656 | Wales | 1 | 0 | 258 | 646 |
| 656 | X-rays | 1 | 0 | 1117 | 1768 |
| 656 | Pacific Islands | 1 | 0 | 644 | 1290 |
| 656 | Communication research | 1 | 0 | 35 | 90 |
| 656 | nucleotides | 1 | 0 | 629 | 1072 |
| 656 | Roads | 1 | 0 | 1189 | 1914 |
| 656 | insect vectors | 1 | 0 | 90 | 276 |
| 656 | drug therapy | 1 | 0 | 3505 | 5385 |
| 656 | Helminths | 1 | 0 | 322 | 646 |
| 656 | Nematodes | 1 | 0 | 146 | 316 |
| 656 | arthritis | 3 | 0 | 1161 | 2815 |
| 656 | child behavior | 1 | 0 | 605 | 1111 |
| 656 | Amphibians | 1 | 0 | 597 | 999 |
| 656 | Reptiles | 1 | 0 | 658 | 1042 |
| 656 | liver | 1 | 0 | 625 | 1096 |
| 656 | Multiple sclerosis | 1 | 0 | 1017 | 1670 |
| 656 | Europe | 1 | 0 | 5019 | 7171 |
| 656 | Textile industry | 1 | 0 | 916 | 1506 |
| 656 | Diabetes | 1 | 0 | 3189 | 4983 |
| 656 | Liver diseases | 1 | 0 | 2089 | 3271 |
