| 1 | Nanotechnology | 1,352 | 67.5K | 55 | 78 |
| 2 | Materials | 1,325 | 61.3K | 107 | 123 |
| 3 | Physics | 1,888 | 58.1K | 247 | 574 |
| 4 | Chemistry | 979 | 56.8K | 442 | 388 |
| 5 | Biology | 513 | 36.1K | 688 | 760 |
| 6 | Science | 665 | 32.4K | 548 | 871 |
| 7 | Materials Science | 680 | 31.1K | 137 | 133 |
| 8 | Nanostructured Materials | 545 | 26.5K | 52 | 52 |
| 9 | nanoscience | 429 | 26.1K | 56 | 73 |
| 10 | Optical materials | 516 | 25.4K | 35 | 46 |
| 11 | Optics | 1,504 | 22.6K | 29 | 82 |
| 12 | Biocompatible Materials | 422 | 22.3K | 132 | 141 |
| 13 | Chemical Engineering | 391 | 22.0K | 229 | 166 |
| 14 | Catalysis | 307 | 21.3K | 257 | 161 |
| 15 | Artificial Intelligence | 735 | 19.7K | 20 | 38 |
| 16 | Neural circuitry | 580 | 15.4K | 5 | 14 |
| 17 | Medicine | 684 | 14.9K | 563 | 1065 |
| 18 | Electronics | 1,072 | 14.4K | 20 | 61 |
| 19 | Photonics | 427 | 14.0K | 13 | 43 |
| 20 | Molecular Biology | 346 | 13.7K | 790 | 984 |
| 21 | Research | 541 | 13.4K | 491 | 683 |
| 22 | actuators | 251 | 13.4K | 42 | 17 |
| 22 | transducers | 251 | 13.4K | 42 | 17 |
| 24 | Signal Processing | 793 | 13.3K | 5 | 16 |
| 25 | Information Science | 324 | 13.3K | 17 | 20 |
| 26 | Biochemical Engineering | 275 | 12.9K | 116 | 246 |
| 27 | Mathematics | 773 | 12.7K | 210 | 171 |
| 28 | Biomedical Engineering | 470 | 12.6K | 109 | 153 |
| 29 | Wireless Communication Systems | 802 | 11.5K | 3 | 8 |
| 30 | Analytical Chemistry | 276 | 11.5K | 292 | 226 |
| 31 | Biotechnology | 260 | 11.2K | 484 | 559 |
| 32 | Statistical physics | 443 | 11.2K | 182 | 215 |
| 33 | Bioinformatics | 223 | 11.2K | 45 | 115 |
| 34 | Electrochemistry | 341 | 11.0K | 214 | 178 |
| 35 | Automation | 315 | 10.2K | 19 | 48 |
| 36 | Natural history | 33 | 10.1K | 1418 | 1174 |
| 37 | fuel cells | 118 | 9.8K | 71 | 59 |
| 38 | Energy Conversion | 108 | 9.8K | 79 | 93 |
| 39 | computer networks | 428 | 8.8K | 9 | 20 |
| 40 | Image Processing | 397 | 8.3K | 14 | 49 |
| 41 | Nanoparticles | 215 | 8.2K | 45 | 64 |
| 42 | Bioengineering | 182 | 8.2K | 340 | 477 |
| 43 | Magnetic Materials | 192 | 7.8K | 33 | 27 |
| 44 | Computational Biology | 189 | 7.5K | 116 | 227 |
| 45 | Electrical Engineering | 624 | 7.5K | 61 | 25 |
| 46 | Biochemistry | 236 | 7.1K | 1468 | 1630 |
| 47 | Surface Chemistry | 254 | 7.0K | 220 | 303 |
| 48 | Colloids | 235 | 7.0K | 260 | 350 |
| 49 | Environmental Chemistry | 38 | 6.6K | 434 | 171 |
| 50 | Mathematical Physics | 205 | 6.3K | 202 | 233 |
| 51 | Industrial Safety | 149 | 6.2K | 13 | 9 |
| 52 | Microwaves | 787 | 6.0K | 2 | 3 |
| 53 | genome | 62 | 6.0K | 214 | 231 |
| 54 | Information Technology | 262 | 5.9K | 19 | 29 |
| 55 | Systems Engineering | 294 | 5.8K | 15 | 22 |
| 56 | miniaturization | 123 | 5.5K | 141 | 239 |
| 57 | Telecommunication | 400 | 5.4K | 22 | 34 |
| 58 | Composite Materials | 161 | 5.4K | 202 | 266 |
| 59 | Microelectronics | 134 | 5.4K | 132 | 217 |
| 60 | Radio | 290 | 5.2K | 7 | 7 |
| 61 | Neurology | 151 | 5.1K | 1041 | 1284 |
| 62 | Genetics | 95 | 5.1K | 716 | 819 |
| 63 | Renewable Energy Sources | 84 | 5.0K | 211 | 311 |
| 64 | Signal Transduction | 40 | 5.0K | 235 | 80 |
| 65 | brain mapping | 82 | 4.8K | 30 | 45 |
| 66 | Cybernetics | 106 | 4.8K | 40 | 36 |
| 67 | Solid State Physics | 295 | 4.7K | 453 | 689 |
| 68 | Radio waves | 258 | 4.6K | 4 | 4 |
| 69 | Metals | 86 | 4.5K | 345 | 226 |
| 70 | Condensed Matter | 350 | 4.5K | 374 | 700 |
| 71 | Green Chemistry | 89 | 4.4K | 146 | 168 |
| 72 | Operations Research | 157 | 4.4K | 114 | 155 |
| 73 | health planning | 172 | 4.4K | 48 | 41 |
| 74 | Polymers | 213 | 4.3K | 541 | 691 |
| 75 | internet | 247 | 4.2K | 5 | 13 |
| 76 | Control Theory | 215 | 4.2K | 45 | 78 |
| 77 | Psychiatry | 109 | 4.1K | 789 | 893 |
| 78 | System analysis | 208 | 4.1K | 52 | 86 |
| 79 | Nervous system | 139 | 4.1K | 213 | 424 |
| 80 | Biophysics | 156 | 4.0K | 965 | 1065 |
| 81 | Multimedia Systems | 257 | 4.0K | 13 | 17 |
| 82 | Cerebral cortex | 63 | 3.9K | 102 | 107 |
| 83 | Internet of Things | 239 | 3.9K | 5 | 6 |
| 84 | Mycology | 39 | 3.9K | 377 | 122 |
| 85 | Fungi | 36 | 3.9K | 211 | 83 |
| 86 | polymerization | 185 | 3.8K | 467 | 605 |
| 87 | Sustainable Engineering | 78 | 3.8K | 118 | 107 |
| 88 | China | 225 | 3.8K | 137 | 151 |
| 89 | Telecommunication Systems | 237 | 3.8K | 16 | 23 |
| 90 | Fracture mechanics | 79 | 3.7K | 132 | 69 |
| 91 | Nonlinear Dynamics | 104 | 3.6K | 317 | 260 |
| 92 | Energy Storage | 94 | 3.6K | 66 | 81 |
| 93 | Engineering | 217 | 3.6K | 204 | 249 |
| 94 | lasers | 192 | 3.6K | 39 | 31 |
| 95 | Fractals | 115 | 3.3K | 19 | 23 |
| 96 | Mechanical Engineering | 144 | 3.3K | 144 | 101 |
| 97 | energy conservation | 82 | 3.1K | 138 | 209 |
| 98 | Solitons | 108 | 3.1K | 19 | 21 |
| 98 | Chaos | 108 | 3.1K | 19 | 21 |
| 100 | Diagnostic Imaging | 138 | 3.1K | 109 | 213 |
| 101 | Fuzzy systems | 150 | 3.0K | 22 | 25 |
| 102 | Nanostructures | 91 | 3.0K | 125 | 278 |
| 103 | Production Management | 44 | 3.0K | 154 | 138 |
| 104 | Biosensors | 51 | 3.0K | 134 | 144 |
| 105 | Radio wave propagation | 236 | 2.8K | 4 | 4 |
| 106 | Technology | 236 | 2.7K | 217 | 550 |
| 106 | management | 91 | 2.7K | 489 | 655 |
| 108 | Computer Vision | 97 | 2.7K | 52 | 174 |
| 109 | Electromagnetism | 315 | 2.7K | 4 | 14 |
| 110 | Carbon | 54 | 2.7K | 163 | 186 |
| 111 | Plant physiology | 18 | 2.6K | 1028 | 468 |
| 112 | Cancer | 95 | 2.6K | 776 | 1105 |
| 113 | plant molecular biology | 17 | 2.6K | 721 | 447 |
| 114 | Process Control | 32 | 2.6K | 113 | 78 |
| 115 | Pollution | 57 | 2.5K | 1476 | 1576 |
| 116 | Semiconductors | 225 | 2.4K | 43 | 113 |
| 117 | Numerical Analysis | 148 | 2.3K | 96 | 180 |
| 118 | Bioelectronics | 37 | 2.2K | 156 | 171 |
| 119 | Ceramic materials | 87 | 2.2K | 80 | 99 |
| 120 | Industrial Engineering | 97 | 2.2K | 134 | 203 |
| 121 | Pharmacology | 111 | 2.2K | 1097 | 1511 |
| 122 | Intelligent Transportation Systems | 112 | 2.2K | 19 | 32 |
| 123 | Energy Harvesting | 29 | 2.2K | 72 | 96 |
| 124 | Mobile Computing | 129 | 2.2K | 14 | 22 |
| 125 | vibration | 61 | 2.1K | 123 | 113 |
| 126 | Neurophysiology | 49 | 2.1K | 915 | 1013 |
| 127 | Structural dynamics | 51 | 2.0K | 143 | 147 |
| 128 | Transportation | 29 | 2.0K | 481 | 252 |
| 129 | Computer Graphics | 92 | 2.0K | 135 | 215 |
| 130 | microwave antennas | 135 | 1.9K | 3 | 2 |
| 131 | Nuclear Physics | 146 | 1.9K | 1013 | 1360 |
| 131 | Ceramics | 78 | 1.9K | 160 | 197 |
| 133 | Boundary Value Problems | 196 | 1.9K | 4 | 4 |
| 134 | Environment | 41 | 1.9K | 1591 | 1972 |
| 135 | Computer Science | 189 | 1.9K | 30 | 100 |
| 136 | infrared radiation | 282 | 1.9K | 3 | 10 |
| 137 | Brain | 58 | 1.9K | 737 | 815 |
| 138 | Navigation | 80 | 1.8K | 15 | 10 |
| 139 | Engineering Mathematics | 288 | 1.8K | 44 | 182 |
| 140 | Optical Communications | 110 | 1.8K | 11 | 21 |
| 141 | Solar Energy | 50 | 1.8K | 173 | 209 |
| 142 | radar | 81 | 1.8K | 5 | 6 |
| 143 | Human genetics | 7 | 1.8K | 2042 | 1730 |
| 144 | Analytical Biochemistry | 15 | 1.8K | 795 | 234 |
| 145 | Sonar | 78 | 1.8K | 6 | 4 |
| 146 | Environmental Health | 56 | 1.8K | 1359 | 1635 |
| 147 | Antenna Arrays | 188 | 1.8K | 3 | 3 |
| 148 | Energy Policy | 49 | 1.8K | 455 | 635 |
| 149 | Psychophysiology | 163 | 1.8K | 326 | 930 |
| 150 | Schizophrenia | 40 | 1.7K | 267 | 276 |
| 151 | nucleic acids | 16 | 1.7K | 941 | 729 |
| 152 | Robotics | 115 | 1.7K | 73 | 206 |
| 153 | Oncology | 43 | 1.7K | 553 | 1126 |
| 154 | Light | 14 | 1.7K | 441 | 334 |
| 155 | Cytology | 75 | 1.6K | 1132 | 2016 |
| 156 | Manufacturing Processes | 80 | 1.6K | 274 | 378 |
| 157 | Metallurgy | 56 | 1.6K | 522 | 528 |
| 158 | Decision making | 36 | 1.6K | 261 | 216 |
| 159 | gene mapping | 32 | 1.6K | 589 | 607 |
| 160 | Chromosome mapping | 31 | 1.6K | 524 | 475 |
| 161 | Remote Sensing | 69 | 1.6K | 113 | 79 |
| 162 | Cognitive Science | 61 | 1.6K | 141 | 342 |
| 163 | Psychology | 72 | 1.6K | 1052 | 1328 |
| 164 | Medical Physics | 56 | 1.5K | 393 | 393 |
| 165 | Glass | 66 | 1.5K | 144 | 222 |
| 166 | pottery | 64 | 1.5K | 146 | 220 |
| 167 | Power Electronics | 96 | 1.5K | 34 | 46 |
| 168 | Cell Biology | 66 | 1.5K | 1109 | 2114 |
| 169 | Nondestructive testing | 49 | 1.5K | 50 | 36 |
| 170 | Ecology | 41 | 1.4K | 2252 | 2631 |
| 171 | Detectors | 167 | 1.4K | 8 | 18 |
| 172 | Microprocessors | 54 | 1.4K | 8 | 9 |
| 173 | Interactive multimedia | 92 | 1.4K | 10 | 14 |
| 174 | multimedia | 91 | 1.3K | 6 | 14 |
| 175 | Spectrum analysis | 86 | 1.3K | 1005 | 1538 |
| 176 | Measurement | 65 | 1.3K | 81 | 98 |
| 177 | Genetic engineering | 22 | 1.3K | 835 | 638 |
| 178 | Solid State Chemistry | 95 | 1.3K | 294 | 494 |
| 179 | Public Health | 48 | 1.3K | 1699 | 1919 |
| 180 | Plants | 12 | 1.3K | 1257 | 730 |
| 181 | Nanophotonics | 29 | 1.3K | 23 | 18 |
| 182 | Decision Support Systems | 14 | 1.3K | 49 | 9 |
| 183 | Plant Genetics | 7 | 1.3K | 499 | 198 |
| 184 | Production Engineering | 74 | 1.3K | 208 | 258 |
| 185 | Bioorganic chemistry | 29 | 1.3K | 1059 | 881 |
| 186 | Nanochemistry | 43 | 1.3K | 89 | 46 |
| 186 | Environmental Management | 23 | 1.3K | 1041 | 892 |
| 188 | Genomics | 47 | 1.3K | 852 | 1078 |
| 189 | Logistics | 20 | 1.2K | 84 | 60 |
| 190 | Computer Architecture | 47 | 1.2K | 29 | 29 |
| 191 | Botany | 36 | 1.2K | 1514 | 1553 |
| 192 | Neuropsychology | 50 | 1.2K | 546 | 690 |
| 192 | biocatalysis | 4 | 1.2K | 148 | 120 |
| 192 | Homogeneous catalysis | 4 | 1.2K | 148 | 120 |
| 192 | Heterogeneous catalysis | 4 | 1.2K | 148 | 120 |
| 192 | Behavior | 35 | 1.2K | 1019 | 1227 |
| 197 | biomedicine | 46 | 1.2K | 62 | 57 |
| 198 | Communication | 51 | 1.2K | 374 | 361 |
| 199 | Physical Chemistry | 55 | 1.2K | 464 | 731 |
| 200 | Organic Chemistry | 32 | 1.2K | 1276 | 1056 |
| 201 | Plant Ecology | 5 | 1.2K | 1658 | 590 |
| 202 | World Wide Web | 52 | 1.2K | 6 | 11 |
| 203 | Breeding | 13 | 1.2K | 617 | 282 |
| 204 | Mental Disorders | 48 | 1.2K | 810 | 1241 |
| 205 | mathematical analysis | 106 | 1.1K | 281 | 390 |
| 206 | Chemical analysis | 28 | 1.1K | 280 | 162 |
| 207 | Pharmaceutical Chemistry | 50 | 1.1K | 1127 | 1556 |
| 208 | environmental pollution | 31 | 1.1K | 1660 | 1822 |
| 209 | Nonlinear systems | 59 | 1.1K | 32 | 60 |
| 210 | Information Theory | 61 | 1.0K | 87 | 216 |
| 211 | Ocean Engineering | 32 | 1.0K | 455 | 419 |
| 212 | Database Management | 31 | 1.0K | 172 | 189 |
| 213 | Dynamics | 101 | 993 | 80 | 217 |
| 214 | Developing countries | 33 | 984 | 553 | 539 |
| 215 | Computational Intelligence | 78 | 977 | 19 | 47 |
| 216 | Health Policy | 20 | 966 | 984 | 666 |
| 217 | Economics | 37 | 947 | 1530 | 1243 |
| 218 | Mental illness | 33 | 943 | 641 | 974 |
| 219 | Biological Systems | 20 | 942 | 119 | 67 |
| 220 | Fiber Optics | 99 | 931 | 12 | 26 |
| 221 | Nonlinear functional analysis | 35 | 926 | 187 | 147 |
| 222 | Radiography | 31 | 920 | 177 | 189 |
| 223 | Environmental monitoring | 30 | 909 | 1330 | 1630 |
| 224 | optical devices | 36 | 900 | 26 | 23 |
| 225 | Immunology | 26 | 886 | 1841 | 2112 |
| 226 | Geophysics | 85 | 875 | 865 | 1599 |
| 226 | Systems Analysis | 44 | 875 | 87 | 117 |
| 228 | solar power | 24 | 869 | 139 | 213 |
| 228 | solar cells | 24 | 869 | 173 | 252 |
| 230 | free radicals | 14 | 839 | 791 | 674 |
| 231 | mass transfer | 27 | 836 | 499 | 513 |
| 232 | energy development | 7 | 835 | 506 | 330 |
| 233 | Technological Innovations | 33 | 824 | 97 | 142 |
| 234 | Statistical Mechanics | 88 | 820 | 70 | 163 |
| 235 | Telecommunications | 38 | 819 | 44 | 45 |
| 236 | human behavior | 20 | 817 | 1009 | 1251 |
| 237 | Structural optimization | 21 | 814 | 61 | 73 |
| 238 | Industrial Microbiology | 6 | 812 | 1640 | 763 |
| 239 | Psychopharmacology | 21 | 803 | 763 | 836 |
| 239 | Computer-Aided Design | 25 | 803 | 263 | 241 |
| 241 | Computer Engineering | 65 | 800 | 12 | 31 |
| 242 | infrared technology | 220 | 798 | 1 | 7 |
| 243 | Nutrition | 49 | 795 | 1252 | 2022 |
| 244 | Human-Computer Interaction | 51 | 780 | 123 | 293 |
| 245 | Microbiology | 50 | 775 | 2296 | 3833 |
| 246 | Plant breeding | 13 | 765 | 373 | 179 |
| 247 | Drug delivery systems | 15 | 762 | 647 | 607 |
| 248 | Environmental Engineering | 24 | 761 | 1511 | 1676 |
| 248 | Databases | 19 | 761 | 113 | 105 |
| 250 | Information Retrieval | 25 | 741 | 71 | 111 |
| 251 | Quality Control | 46 | 740 | 192 | 419 |
| 252 | Evolutionary Computation | 25 | 739 | 39 | 96 |
| 253 | Oxidative stress | 20 | 733 | 303 | 436 |
| 254 | Plant genetic engineering | 12 | 726 | 453 | 379 |
| 255 | Entropy | 61 | 722 | 35 | 76 |
| 256 | Cloud Computing | 31 | 714 | 6 | 7 |
| 257 | Adaptive control systems | 71 | 713 | 13 | 45 |
| 258 | Medical Laboratory Science | 21 | 707 | 773 | 858 |
| 259 | Social Sciences | 45 | 704 | 824 | 840 |
| 260 | micromechanics | 21 | 677 | 142 | 139 |
| 261 | Computational Complexity | 67 | 674 | 28 | 75 |
| 262 | Imaging systems | 60 | 672 | 18 | 45 |
| 263 | Molecular Spectroscopy | 37 | 665 | 352 | 469 |
| 264 | Information Systems | 23 | 658 | 326 | 374 |
| 265 | environmental protection | 22 | 650 | 1377 | 1544 |
| 266 | Immunotherapy | 41 | 646 | 413 | 1109 |
| 266 | Integrated Circuits | 129 | 646 | 6 | 17 |
| 268 | Toxicology | 28 | 643 | 2026 | 2492 |
| 269 | Astronomy | 15 | 639 | 1776 | 1662 |
| 270 | Plant Biotechnology | 11 | 638 | 385 | 256 |
| 271 | Mobile Commerce | 30 | 633 | 10 | 3 |
| 272 | proteins | 19 | 630 | 987 | 937 |
| 273 | Mechatronics | 38 | 622 | 67 | 93 |
| 274 | Biodiversity conservation | 7 | 616 | 1348 | 1219 |
| 275 | Climate change | 6 | 615 | 881 | 1024 |
| 275 | Eutrophication | 6 | 615 | 852 | 1017 |
| 277 | drug evaluation | 9 | 609 | 822 | 336 |
| 278 | RNA | 6 | 599 | 415 | 237 |
| 279 | software | 30 | 594 | 97 | 259 |
| 280 | Cognitive neuroscience | 28 | 588 | 279 | 580 |
| 281 | Differential Equations | 24 | 580 | 253 | 214 |
| 282 | Data Mining | 41 | 579 | 173 | 682 |
| 282 | Drug targeting | 5 | 579 | 188 | 57 |
| 284 | Cell death | 23 | 574 | 437 | 844 |
| 285 | Quantum electronics | 44 | 571 | 86 | 107 |
| 286 | Clinical Chemistry | 30 | 570 | 1112 | 1664 |
| 287 | Humanities | 40 | 568 | 210 | 172 |
| 288 | Earth Sciences | 38 | 561 | 1027 | 1513 |
| 289 | epilepsy | 19 | 559 | 347 | 338 |
| 290 | Microwave devices | 52 | 553 | 2 | 1 |
| 291 | microwave communication systems | 51 | 551 | 1 | 8 |
| 292 | enzymes | 25 | 540 | 459 | 713 |
| 293 | Radio frequency | 62 | 535 | 7 | 51 |
| 294 | pigments | 28 | 532 | 136 | 212 |
| 295 | heredity | 15 | 531 | 227 | 178 |
| 295 | Informatics | 11 | 531 | 406 | 321 |
| 297 | Ultrasonics | 31 | 529 | 159 | 429 |
| 298 | Visual Communication | 37 | 528 | 24 | 49 |
| 298 | Image enhancement | 37 | 528 | 20 | 47 |
| 300 | Aging | 30 | 527 | 1083 | 1440 |
| 301 | Microscopy | 30 | 520 | 396 | 491 |
| 302 | Neuropsychiatry | 14 | 519 | 419 | 400 |
| 303 | Heat Exchangers | 17 | 517 | 398 | 494 |
| 304 | Medical Technology | 47 | 506 | 205 | 651 |
| 305 | Smart Materials | 25 | 500 | 186 | 293 |
| 306 | Intelligent Control Systems | 52 | 498 | 73 | 137 |
| 307 | Neuroplasticity | 21 | 492 | 26 | 42 |
| 308 | Medical Oncology | 156 | 491 | 225 | 1202 |
| 309 | Immunopharmacology | 33 | 487 | 173 | 356 |
| 309 | Microstructure | 77 | 487 | 16 | 85 |
| 311 | Clinical Psychology | 8 | 485 | 1090 | 935 |
| 311 | Health Information Management | 4 | 485 | 225 | 220 |
| 313 | Economic History | 29 | 484 | 1280 | 1202 |
| 314 | electric vehicles | 19 | 476 | 41 | 27 |
| 315 | Proteomics | 4 | 469 | 1247 | 641 |
| 316 | Electrophoresis | 24 | 463 | 517 | 724 |
| 317 | finance | 33 | 462 | 653 | 913 |
| 318 | Swarm Intelligence | 10 | 455 | 66 | 86 |
| 319 | Neurochemistry | 47 | 452 | 684 | 1588 |
| 319 | Structural design | 22 | 452 | 163 | 265 |
| 319 | Number Theory | 73 | 452 | 40 | 66 |
| 322 | Oxidation-reduction | 5 | 444 | 759 | 641 |
| 323 | Sociology | 33 | 436 | 869 | 1407 |
| 324 | Autism | 11 | 435 | 375 | 380 |
| 325 | Ultrasound | 29 | 434 | 83 | 191 |
| 326 | Surface properties | 16 | 427 | 352 | 543 |
| 327 | Combinatorial chemistry | 14 | 419 | 327 | 472 |
| 327 | Cognitive Radio Networks | 28 | 419 | 3 | 8 |
| 329 | Wireless Communication | 58 | 417 | 5 | 48 |
| 330 | Medical genetics | 28 | 414 | 1355 | 2461 |
| 331 | Australia | 15 | 413 | 897 | 668 |
| 332 | cytokines | 33 | 411 | 247 | 717 |
| 333 | Nanobiotechnology | 19 | 409 | 75 | 210 |
| 334 | Environmental Policy | 10 | 406 | 2094 | 2308 |
| 335 | Substance Abuse | 9 | 405 | 1018 | 733 |
| 336 | sanitation | 13 | 402 | 851 | 1379 |
| 336 | Neurons | 2 | 402 | 1047 | 1055 |
| 338 | Endocrinology | 13 | 395 | 2108 | 2486 |
| 338 | Herbal medicine | 13 | 395 | 236 | 302 |
| 340 | Functional Analysis | 18 | 394 | 541 | 440 |
| 341 | Risk Management | 13 | 393 | 264 | 258 |
| 342 | Simulation | 13 | 392 | 27 | 41 |
| 342 | theoretical models | 13 | 392 | 27 | 41 |
| 344 | Surface-Active Agents | 15 | 391 | 339 | 539 |
| 345 | Simulation Methods | 19 | 389 | 191 | 193 |
| 346 | neuronal plasticity | 12 | 387 | 54 | 61 |
| 347 | Applied Mathematics | 80 | 386 | 25 | 46 |
| 347 | Liver diseases | 21 | 386 | 695 | 1350 |
| 349 | Statistics | 49 | 385 | 703 | 1254 |
| 350 | Tribology | 14 | 379 | 550 | 492 |
| 351 | Developmental Biology | 2 | 377 | 3041 | 1685 |
| 352 | Pathology | 22 | 376 | 1152 | 1765 |
| 352 | Ferroelectricity | 35 | 376 | 169 | 212 |
| 354 | Physiology | 23 | 375 | 2088 | 2975 |
| 355 | Drug design | 20 | 365 | 574 | 974 |
| 356 | economic policy | 14 | 360 | 1320 | 859 |
| 356 | data protection | 32 | 360 | 21 | 97 |
| 358 | Obstetrics | 39 | 359 | 855 | 1555 |
| 359 | Business | 17 | 358 | 975 | 1330 |
| 359 | peptides | 9 | 358 | 513 | 241 |
| 361 | Animal Behavior | 10 | 357 | 1257 | 1433 |
| 362 | Nanoelectronics | 29 | 355 | 162 | 201 |
| 363 | machinery | 14 | 354 | 263 | 227 |
| 364 | Inflammation | 12 | 353 | 635 | 835 |
| 365 | Quantum Gravity | 19 | 352 | 1211 | 1329 |
| 365 | Neuropharmacology | 11 | 352 | 249 | 292 |
| 367 | Asia | 32 | 348 | 684 | 937 |
| 368 | Developmental Immunology | 14 | 344 | 266 | 373 |
| 369 | Luminescence | 27 | 343 | 283 | 436 |
| 370 | cell physiology | 14 | 342 | 831 | 1329 |
| 371 | Epidemiology | 21 | 341 | 1879 | 2648 |
| 372 | Sound | 22 | 338 | 176 | 158 |
| 372 | Recombinant DNA | 16 | 338 | 660 | 909 |
| 374 | Food | 14 | 334 | 1742 | 2043 |
| 375 | Pharmacognosy | 18 | 331 | 745 | 1231 |
| 375 | Algorithms | 27 | 331 | 80 | 218 |
| 377 | Neuroendocrinology | 2 | 330 | 221 | 146 |
| 377 | Social behavior | 10 | 330 | 674 | 715 |
| 377 | Kidney diseases | 17 | 330 | 404 | 619 |
| 380 | rehabilitation | 21 | 327 | 878 | 1334 |
| 381 | Nuclear Engineering | 39 | 326 | 339 | 422 |
| 382 | behavioral medicine | 8 | 323 | 914 | 952 |
| 383 | Optoelectronics | 83 | 322 | 13 | 75 |
| 383 | Cytogenetics | 15 | 322 | 830 | 1498 |
| 383 | environmental indicators | 5 | 322 | 995 | 724 |
| 383 | Virology | 20 | 322 | 1594 | 3169 |
| 387 | Ethology | 7 | 318 | 1194 | 1314 |
| 388 | Neuroimmunology | 7 | 317 | 540 | 574 |
| 389 | Geographic information systems | 28 | 316 | 178 | 309 |
| 389 | Genes | 10 | 316 | 650 | 580 |
| 391 | Probability | 10 | 314 | 300 | 302 |
| 392 | Climatology | 8 | 312 | 1315 | 1230 |
| 393 | probabilities | 11 | 308 | 766 | 465 |
| 394 | Nuclear Fusion | 16 | 306 | 303 | 307 |
| 394 | marketing | 9 | 306 | 1238 | 1133 |
| 396 | Interfaces | 10 | 305 | 89 | 64 |
| 397 | Electrochemical Analysis | 24 | 300 | 473 | 843 |
| 398 | Molecular cloning | 13 | 295 | 730 | 927 |
| 398 | Genetic recombination | 13 | 295 | 716 | 915 |
| 400 | Neurobiology | 8 | 294 | 1472 | 1690 |
| 401 | Hydrology | 13 | 293 | 1452 | 1559 |
| 401 | Critical Care | 22 | 293 | 723 | 1669 |
| 403 | Recycling | 3 | 291 | 660 | 543 |
| 404 | Medicinal plants | 15 | 290 | 596 | 1003 |
| 404 | Plant tissue culture | 5 | 290 | 642 | 395 |
| 404 | Membranes | 10 | 290 | 1208 | 1474 |
| 404 | Plant cell culture | 5 | 290 | 555 | 387 |
| 408 | Cellular senescence | 15 | 289 | 205 | 512 |
| 409 | United States | 11 | 288 | 3676 | 3271 |
| 410 | Photochemistry | 11 | 287 | 1043 | 1069 |
| 410 | Photobiology | 11 | 287 | 695 | 736 |
| 412 | innovation | 6 | 286 | 438 | 532 |
| 413 | Organometallic chemistry | 21 | 284 | 705 | 910 |
| 414 | Atomic spectroscopy | 29 | 282 | 273 | 581 |
| 415 | Oncogenes | 7 | 280 | 998 | 1367 |
| 416 | Financial management | 8 | 276 | 280 | 356 |
| 417 | Molecular evolution | 21 | 275 | 657 | 1339 |
| 418 | Risk assessment | 26 | 274 | 49 | 155 |
| 418 | Risk | 9 | 274 | 318 | 352 |
| 420 | Plastics | 18 | 273 | 685 | 858 |
| 420 | Developed countries | 1 | 273 | 462 | 106 |
| 422 | Diagnosis | 14 | 271 | 192 | 211 |
| 422 | Entrepreneurship | 9 | 271 | 541 | 731 |
| 424 | Software Engineering | 18 | 269 | 332 | 408 |
| 424 | Water | 10 | 269 | 1643 | 2210 |
| 426 | Genetic algorithms | 12 | 267 | 55 | 127 |
| 426 | Porous materials | 12 | 267 | 254 | 224 |
| 428 | Obesity | 9 | 266 | 1534 | 1843 |
| 429 | Astrophysics | 46 | 261 | 1317 | 2414 |
| 430 | East Asia | 17 | 258 | 146 | 120 |
| 431 | Mental Health | 6 | 253 | 1421 | 938 |
| 431 | Quantum Optics | 26 | 253 | 210 | 461 |
| 431 | Proteome | 6 | 253 | 1048 | 1062 |
| 431 | Laser Spectroscopy | 26 | 253 | 170 | 413 |
| 431 | Semiconductor industry | 19 | 253 | 180 | 228 |
| 436 | Systems Biology | 23 | 250 | 474 | 1087 |
| 437 | energy resources | 3 | 249 | 1565 | 1415 |
| 438 | Embedded Systems | 11 | 246 | 52 | 58 |
| 438 | Smoking | 5 | 246 | 721 | 604 |
| 438 | drug addiction | 5 | 246 | 1120 | 940 |
| 438 | alcoholism | 5 | 246 | 1475 | 1143 |
| 442 | Bifurcation Theory | 24 | 241 | 104 | 228 |
| 443 | Superconductors | 22 | 240 | 197 | 313 |
| 444 | Molecular Genetics | 19 | 236 | 939 | 1811 |
| 444 | cell interaction | 11 | 236 | 649 | 978 |
| 446 | data collection | 13 | 235 | 362 | 895 |
| 447 | Quantum theory | 15 | 234 | 399 | 538 |
| 448 | hazard mitigation | 9 | 233 | 446 | 538 |
| 449 | sustainability | 24 | 232 | 107 | 788 |
| 450 | Biomechanics | 12 | 230 | 776 | 1039 |
| 451 | Venture Capital | 2 | 228 | 394 | 390 |
| 451 | Transgenic plants | 4 | 228 | 452 | 351 |
| 453 | Pregnancy | 21 | 220 | 222 | 536 |
| 454 | Psychoneuroimmunology | 5 | 211 | 602 | 694 |
| 455 | Superconductivity | 20 | 206 | 149 | 259 |
| 456 | Medical Microbiology | 6 | 203 | 2201 | 2560 |
| 456 | Public Administration | 6 | 203 | 1165 | 734 |
| 456 | Transplantation | 20 | 203 | 588 | 1304 |
| 456 | commerce | 18 | 203 | 534 | 1046 |
| 456 | coal | 13 | 203 | 771 | 1428 |
| 461 | Critical Care Medicine | 16 | 199 | 875 | 1957 |
| 461 | Microwave circuits | 41 | 199 | 1 | 5 |
| 463 | Sensor Networks | 17 | 198 | 29 | 82 |
| 463 | phototherapy | 14 | 198 | 41 | 19 |
| 465 | Electromagnetic waves | 8 | 196 | 78 | 67 |
| 466 | big data | 23 | 194 | 24 | 213 |
| 466 | Reproduction | 15 | 194 | 1353 | 1987 |
| 468 | Parenteral nutrition | 12 | 193 | 626 | 1096 |
| 469 | Molecular structure | 12 | 191 | 1461 | 1974 |
| 470 | Mechanics | 13 | 190 | 627 | 692 |
| 471 | Cryptography | 18 | 189 | 155 | 211 |
| 472 | Water pollution | 8 | 187 | 2030 | 2623 |
| 472 | Crystal growth | 14 | 187 | 439 | 750 |
| 474 | International Finance | 15 | 181 | 731 | 1137 |
| 474 | Europe | 15 | 181 | 1793 | 2311 |
| 476 | Calorimetry | 12 | 180 | 506 | 607 |
| 476 | Thermal analysis | 12 | 180 | 506 | 607 |
| 478 | Molecular Pharmacology | 10 | 179 | 411 | 857 |
| 478 | Project Management | 3 | 179 | 289 | 333 |
| 478 | Engineering Geology | 8 | 179 | 951 | 1129 |
| 478 | Raman spectroscopy | 5 | 179 | 708 | 549 |
| 482 | Geriatrics | 9 | 177 | 2333 | 2505 |
| 482 | Stochastic Processes | 9 | 177 | 497 | 446 |
| 484 | Natural Sciences | 4 | 176 | 97 | 28 |
| 484 | Ecohydrology | 5 | 176 | 265 | 199 |
| 484 | Aquatic ecology | 5 | 176 | 901 | 732 |
| 487 | Cardiovascular diseases | 16 | 174 | 838 | 1332 |
| 487 | Dementia | 13 | 174 | 912 | 966 |
| 487 | Alzheimer's disease | 13 | 174 | 940 | 1078 |
| 490 | Molecules | 28 | 172 | 524 | 1067 |
| 490 | Environmental pollutants | 12 | 172 | 1282 | 2162 |
| 492 | Child psychology | 4 | 171 | 1578 | 1513 |
| 492 | biochemical markers | 23 | 171 | 131 | 507 |
| 494 | Pediatrics | 20 | 170 | 1302 | 2868 |
| 494 | Combustion | 8 | 170 | 871 | 983 |
| 496 | Surgery | 12 | 166 | 1440 | 2509 |
| 497 | personality | 9 | 165 | 893 | 1361 |
| 497 | Classification | 3 | 165 | 308 | 167 |
| 499 | Metabolism | 12 | 164 | 1957 | 3283 |
| 500 | Immunity | 3 | 163 | 2516 | 2734 |
| 501 | Food service management | 2 | 162 | 515 | 457 |
| 502 | Cell differentiation | 13 | 161 | 1101 | 2243 |
| 503 | Biomarkers | 19 | 160 | 50 | 208 |
| 503 | Immune system | 2 | 160 | 1652 | 1564 |
| 505 | infection | 4 | 159 | 1941 | 1837 |
| 506 | Terahertz Technology | 10 | 156 | 6 | 14 |
| 507 | Educational Technology | 13 | 155 | 678 | 1068 |
| 507 | amino acids | 5 | 155 | 475 | 533 |
| 509 | Environmental Toxicology | 9 | 154 | 1662 | 2728 |
| 509 | Medical innovations | 12 | 154 | 497 | 1871 |
| 511 | Neuroimaging | 12 | 153 | 95 | 185 |
| 512 | reasoning | 7 | 151 | 169 | 239 |
| 512 | biological factors | 4 | 151 | 2051 | 1718 |
| 514 | emergency management | 7 | 150 | 540 | 670 |
| 514 | Quantum Communication | 6 | 150 | 118 | 197 |
| 516 | Bioinorganic chemistry | 9 | 149 | 955 | 1238 |
| 516 | Astrocytes | 1 | 149 | 1011 | 710 |
| 518 | particles | 8 | 148 | 548 | 711 |
| 519 | Game Theory | 3 | 146 | 659 | 367 |
| 520 | Alternative Medicine | 17 | 144 | 733 | 1636 |
| 521 | Radiobiology | 141 | 143 | 215 | 1662 |
| 522 | Plant cells | 5 | 142 | 1058 | 1728 |
| 523 | Public Policy | 7 | 141 | 1370 | 1693 |
| 523 | Microbial Ecology | 8 | 141 | 1766 | 2954 |
| 523 | Infections | 2 | 141 | 1927 | 1602 |
| 523 | Parasitic Diseases | 2 | 141 | 3156 | 2166 |
| 527 | city planning | 8 | 139 | 1074 | 1259 |
| 528 | Sustainable Development | 16 | 138 | 799 | 2061 |
| 528 | complementary therapies | 16 | 138 | 827 | 1729 |
| 530 | Biomass Energy | 5 | 137 | 2316 | 2762 |
| 530 | Latin America | 19 | 137 | 588 | 550 |
| 532 | Geology | 22 | 135 | 1452 | 2617 |
| 533 | DNS | 6 | 134 | 348 | 476 |
| 534 | Nuclear Energy | 15 | 133 | 523 | 727 |
| 535 | Combinatorial optimization | 15 | 132 | 111 | 170 |
| 536 | Immunochemistry | 4 | 131 | 1144 | 961 |
| 537 | Muscles | 5 | 129 | 883 | 1119 |
| 538 | Land use | 3 | 128 | 1347 | 1155 |
| 538 | Enteral nutrition | 9 | 128 | 580 | 1130 |
| 540 | Politics | 1 | 127 | 1390 | 360 |
| 540 | government | 1 | 127 | 1476 | 475 |
| 540 | Chromatographic analysis | 9 | 127 | 1295 | 1613 |
| 540 | Cognition | 9 | 127 | 1151 | 1742 |
| 544 | Lightweight Materials | 3 | 125 | 28 | 15 |
| 544 | Sarcopenia | 4 | 125 | 359 | 584 |
| 544 | Stem cells | 10 | 125 | 1170 | 1978 |
| 544 | Catalysts | 4 | 125 | 649 | 568 |
| 548 | Environmental Geology | 5 | 124 | 1406 | 1537 |
| 548 | Liquid Crystals | 15 | 124 | 405 | 471 |
| 548 | carcinogens | 5 | 124 | 961 | 1300 |
| 551 | particle beams | 8 | 123 | 129 | 153 |
| 551 | fusion reactors | 13 | 123 | 237 | 275 |
| 553 | Emergency Medical Services | 6 | 122 | 646 | 658 |
| 554 | Optoelectronic devices | 19 | 121 | 191 | 396 |
| 555 | Pharmacy | 7 | 120 | 1777 | 2255 |
| 555 | Building Materials | 5 | 120 | 1483 | 1935 |
| 555 | Magnetic Resonance Spectroscopy | 17 | 120 | 566 | 1072 |
| 555 | Adolescent | 9 | 120 | 1563 | 2081 |
| 559 | Hydraulic Engineering | 5 | 119 | 853 | 862 |
| 559 | Flexible electronics | 6 | 119 | 21 | 90 |
| 561 | nuclear power | 9 | 118 | 310 | 263 |
| 562 | Safety management | 3 | 117 | 719 | 328 |
| 562 | natural disasters | 4 | 117 | 1294 | 1349 |
| 564 | Structural Engineering | 7 | 116 | 1238 | 1361 |
| 564 | Flexible manufacturing systems | 8 | 116 | 165 | 337 |
| 564 | Child welfare | 6 | 116 | 885 | 970 |
| 564 | mental processes | 10 | 116 | 145 | 250 |
| 568 | Natural resources | 2 | 114 | 1096 | 868 |
| 568 | Genetic testing | 16 | 114 | 53 | 155 |
| 568 | Respiration | 7 | 114 | 1313 | 1858 |
| 571 | Database Security | 7 | 113 | 24 | 31 |
| 572 | Embryology | 6 | 112 | 1456 | 2136 |
| 572 | Nephrology | 4 | 112 | 659 | 911 |
| 572 | Plant diseases | 12 | 112 | 1174 | 1829 |
| 575 | Materials Engineering | 7 | 111 | 414 | 427 |
| 575 | Tourism | 7 | 111 | 1124 | 1652 |
| 575 | Calculus of Variations | 6 | 111 | 374 | 322 |
| 578 | Library Science | 8 | 108 | 816 | 555 |
| 578 | Cellulose | 3 | 108 | 684 | 699 |
| 580 | Food Microbiology | 4 | 107 | 1305 | 1774 |
| 580 | Technology Assessment | 4 | 107 | 275 | 454 |
| 580 | Evidence-Based Medicine | 12 | 107 | 591 | 1208 |
| 580 | pain | 6 | 107 | 1278 | 1796 |
| 584 | Education | 15 | 106 | 2120 | 2921 |
| 584 | Visual Perception | 5 | 106 | 1859 | 2162 |
| 584 | anesthesia | 8 | 106 | 357 | 328 |
| 584 | Agriculture | 4 | 106 | 2544 | 2401 |
| 588 | Chromatography | 6 | 105 | 1400 | 1647 |
| 588 | human development | 9 | 105 | 445 | 908 |
| 588 | Perception | 4 | 105 | 2284 | 2365 |
| 591 | Vaccines | 7 | 104 | 1553 | 2273 |
| 592 | Horticulture | 3 | 103 | 928 | 658 |
| 592 | India | 4 | 103 | 1893 | 764 |
| 594 | Computational Chemistry | 3 | 102 | 820 | 777 |
| 594 | Pharmaceutical Technology | 7 | 102 | 1175 | 1738 |
| 594 | Computational Linguistics | 12 | 102 | 136 | 279 |
| 597 | Agricultural Chemistry | 7 | 100 | 1931 | 2631 |
| 597 | particle accelerators | 4 | 100 | 134 | 132 |
| 597 | Research Design | 4 | 100 | 1366 | 1524 |
| 597 | Social Change | 4 | 100 | 945 | 1337 |
| 597 | Zeolites | 4 | 100 | 913 | 1185 |
| 597 | Egypt | 5 | 100 | 323 | 524 |
| 603 | Production Planning | 4 | 99 | 218 | 326 |
| 603 | Production Control | 4 | 99 | 213 | 326 |
| 605 | Ultrasonic Imaging | 8 | 98 | 285 | 546 |
| 606 | Hematology | 38 | 97 | 1556 | 3564 |
| 606 | Bioprinting | 1 | 97 | 113 | 45 |
| 608 | Bacteriology | 4 | 96 | 2178 | 2810 |
| 609 | Bibliometrics | 5 | 95 | 78 | 183 |
| 609 | Sonochemistry | 2 | 95 | 866 | 983 |
| 609 | natural products | 6 | 95 | 1470 | 1684 |
| 612 | Particle Physics | 9 | 94 | 503 | 629 |
| 613 | Radiation Oncology | 11 | 93 | 160 | 476 |
| 613 | Drug delivery devices | 4 | 93 | 118 | 313 |
| 613 | Memory | 2 | 93 | 3035 | 2519 |
| 613 | Attention | 2 | 93 | 2993 | 2357 |
| 617 | Meteorology | 7 | 92 | 1963 | 3107 |
| 617 | Digital electronics | 12 | 92 | 85 | 157 |
| 617 | Child | 9 | 92 | 1878 | 2803 |
| 617 | economic analysis | 1 | 92 | 586 | 199 |
| 621 | Geodesy | 8 | 90 | 413 | 782 |
| 621 | Cell communication | 4 | 90 | 830 | 1180 |
| 623 | Pharmacogenetics | 5 | 89 | 1049 | 1591 |
| 624 | visualization | 19 | 87 | 591 | 894 |
| 624 | ovary | 4 | 87 | 177 | 210 |
| 626 | Regional Planning | 5 | 86 | 1438 | 1552 |
| 626 | Microfluidics | 3 | 86 | 253 | 272 |
| 628 | Linguistics | 10 | 85 | 916 | 1144 |
| 628 | Cartography | 7 | 85 | 322 | 300 |
| 628 | Social work | 4 | 85 | 1548 | 1266 |
| 628 | Gastrointestinal diseases | 8 | 85 | 446 | 780 |
| 632 | Cosmology | 9 | 84 | 983 | 1150 |
| 633 | Urban Policy | 4 | 83 | 738 | 993 |
| 633 | Mineral resources | 4 | 83 | 491 | 759 |
| 635 | Ecological Engineering | 3 | 82 | 766 | 1034 |
| 635 | Econometrics | 6 | 82 | 1108 | 1294 |
| 637 | Diet | 9 | 81 | 1598 | 3249 |
| 637 | biopolymers | 4 | 81 | 1242 | 1477 |
| 637 | Women's health | 13 | 81 | 623 | 1599 |
| 640 | Urban Planning | 1 | 80 | 802 | 494 |
| 640 | community development | 1 | 80 | 1205 | 588 |
| 640 | nuclear magnetic resonance | 6 | 80 | 993 | 1189 |
| 640 | Housing | 1 | 80 | 956 | 584 |
| 640 | Population | 1 | 80 | 2266 | 1212 |
| 640 | Evolution | 5 | 80 | 1844 | 2660 |
| 646 | Plasma devices | 5 | 79 | 269 | 374 |
| 647 | Structural health monitoring | 5 | 77 | 144 | 285 |
| 647 | structural stability | 5 | 77 | 371 | 528 |
| 647 | biological evolution | 4 | 77 | 2273 | 3239 |
| 647 | Emotions | 5 | 77 | 486 | 866 |
| 651 | Transportation Engineering | 8 | 76 | 174 | 392 |
| 651 | Tissue Engineering | 4 | 76 | 292 | 426 |
| 651 | Forest Ecology | 2 | 76 | 1488 | 1466 |
| 651 | Forest Management | 2 | 76 | 1461 | 1403 |
| 651 | Human Resources | 5 | 76 | 319 | 702 |
| 656 | Health Services Research | 8 | 75 | 1289 | 2211 |
| 656 | Economic Development | 8 | 75 | 1182 | 2261 |
| 656 | toxicity testing | 3 | 75 | 908 | 1055 |
| 659 | Ubiquitous computing | 12 | 74 | 23 | 77 |
| 660 | Fixed Point Theory | 7 | 73 | 158 | 149 |
| 660 | Cardiovascular system | 4 | 73 | 1863 | 2832 |
| 660 | medical education | 7 | 73 | 1565 | 2274 |
| 663 | Coastal Engineering | 4 | 72 | 122 | 96 |
| 663 | Transport | 1 | 72 | 1267 | 937 |
| 663 | Harbors | 4 | 72 | 87 | 89 |
| 666 | food technology | 4 | 71 | 2687 | 3416 |
| 666 | Carcinogenesis | 6 | 71 | 860 | 1737 |
| 666 | Real-time Data Processing | 2 | 71 | 174 | 128 |
| 669 | Histology | 4 | 70 | 2083 | 2736 |
| 670 | plasticity | 1 | 69 | 617 | 607 |
| 670 | pollutants | 7 | 69 | 1480 | 2880 |
| 672 | Biostatistics | 4 | 68 | 128 | 63 |
| 672 | Clinical Immunology | 8 | 68 | 1038 | 1939 |
| 672 | Investment analysis | 6 | 68 | 536 | 944 |
| 672 | Digestive system diseases | 2 | 68 | 1521 | 1456 |
| 676 | Sleep Disorders | 9 | 67 | 1289 | 2180 |
| 676 | drug resistance | 6 | 67 | 510 | 1170 |
| 676 | Radiation | 17 | 67 | 1038 | 2567 |
| 676 | X-rays | 9 | 67 | 367 | 747 |
| 676 | Chromosomes | 2 | 67 | 1507 | 1578 |
| 676 | Sleep | 10 | 67 | 1212 | 2188 |
| 682 | Microfabrication | 7 | 66 | 218 | 461 |
| 683 | Molecular recognition | 3 | 65 | 227 | 305 |
| 683 | Strategic planning | 10 | 65 | 343 | 969 |
| 683 | Mountains | 5 | 65 | 316 | 333 |
| 686 | Earthquake Engineering | 3 | 64 | 1395 | 1601 |
| 686 | violence | 1 | 64 | 1878 | 1277 |
| 686 | Aggression | 1 | 64 | 960 | 719 |
| 686 | ground penetrating radar | 5 | 64 | 19 | 23 |
| 690 | Nursing | 10 | 63 | 1168 | 2057 |
| 691 | Probiotics | 1 | 62 | 491 | 261 |
| 692 | Fuzzy Logic | 7 | 61 | 40 | 112 |
| 692 | Plant Morphology | 4 | 61 | 575 | 702 |
| 692 | Atmospheric Physics | 5 | 61 | 1525 | 2241 |
| 692 | Metabolic diseases | 9 | 61 | 1909 | 4013 |
| 692 | Genetic regulation | 4 | 61 | 1332 | 2109 |
| 697 | Africa | 6 | 60 | 1367 | 1570 |
| 698 | Energy Consumption | 4 | 59 | 166 | 291 |
| 698 | environmental exposure | 6 | 59 | 1627 | 3057 |
| 698 | Genetic therapy | 6 | 59 | 1166 | 2243 |
| 701 | Mineralogy | 5 | 58 | 1258 | 1689 |
| 701 | Physical organic chemistry | 2 | 58 | 1941 | 1776 |
| 701 | Computational Fluid Dynamics | 11 | 58 | 287 | 846 |
| 701 | Social policy | 3 | 58 | 1198 | 1129 |
| 701 | electrocatalysis | 3 | 58 | 101 | 111 |
| 701 | planning | 2 | 58 | 1102 | 861 |
| 701 | econometric models | 7 | 58 | 328 | 830 |
| 701 | Economic planning | 2 | 58 | 709 | 701 |
| 709 | dietary supplements | 5 | 57 | 622 | 1310 |
| 709 | Creativity | 2 | 57 | 391 | 421 |
| 711 | Primary health care | 7 | 56 | 1438 | 2598 |
| 711 | Adhesion | 5 | 56 | 511 | 834 |
| 711 | Autoimmunity | 3 | 56 | 976 | 1513 |
| 711 | adhesives | 5 | 56 | 554 | 841 |
| 715 | Higher Education | 4 | 55 | 510 | 632 |
| 715 | Pharmacogenomics | 1 | 55 | 803 | 662 |
| 715 | Organizational change | 4 | 55 | 666 | 918 |
| 715 | Soft Condensed Matter | 2 | 55 | 1501 | 1554 |
| 715 | Microorganisms | 3 | 55 | 1491 | 2343 |
| 715 | Therapeutics | 8 | 55 | 1432 | 3179 |
| 721 | Architecture | 1 | 54 | 1358 | 495 |
| 721 | population health | 4 | 54 | 2 | 3 |
| 721 | Autoantibodies | 2 | 54 | 943 | 1194 |
| 721 | construction | 1 | 54 | 423 | 325 |
| 721 | Autoimmune diseases | 2 | 54 | 1011 | 1274 |
| 721 | arthritis | 3 | 54 | 1618 | 2375 |
| 721 | civil service | 1 | 54 | 760 | 476 |
| 728 | Financial Engineering | 2 | 52 | 321 | 312 |
| 729 | Rheumatology | 3 | 51 | 1636 | 2094 |
| 729 | Metallography | 5 | 51 | 670 | 1201 |
| 729 | explosives | 3 | 51 | 287 | 220 |
| 729 | Muscle contraction | 10 | 51 | 73 | 185 |
| 733 | Total Quality Management | 4 | 50 | 450 | 803 |
| 733 | Cross-Cultural Studies | 9 | 50 | 301 | 1001 |
| 733 | Chemical industry | 7 | 50 | 1026 | 1636 |
| 733 | military research | 1 | 50 | 174 | 26 |
| 733 | cloning | 1 | 50 | 1415 | 1559 |
| 738 | Land Use Planning | 1 | 49 | 726 | 639 |
| 738 | Speech Disorders | 2 | 49 | 1464 | 1487 |
| 738 | cross-cultural comparison | 8 | 49 | 265 | 794 |
| 741 | Corporate governance | 2 | 48 | 858 | 931 |
| 741 | Child Development | 11 | 48 | 1255 | 3126 |
| 741 | motivation | 2 | 48 | 464 | 527 |
| 741 | Emotion | 2 | 48 | 284 | 405 |
| 745 | Hydrodynamics | 1 | 47 | 1067 | 935 |
| 745 | Securities | 2 | 47 | 495 | 581 |
| 747 | Sales management | 1 | 46 | 404 | 506 |
| 747 | selling | 1 | 46 | 404 | 506 |
| 749 | Physical Geography | 2 | 45 | 840 | 770 |
| 749 | Psycholinguistics | 7 | 45 | 701 | 1471 |
| 749 | Educational Psychology | 7 | 45 | 1016 | 1922 |
| 749 | Invertebrates | 1 | 45 | 1327 | 1015 |
| 749 | Pancreatic diseases | 1 | 45 | 1112 | 639 |
| 754 | Nanomedicine | 2 | 44 | 351 | 581 |
| 754 | Artificial Organs | 3 | 44 | 898 | 975 |
| 754 | Enzyme inhibitors | 1 | 44 | 824 | 626 |
| 754 | Fuzzy Sets | 3 | 44 | 57 | 131 |
| 754 | Quality of life | 6 | 44 | 1259 | 2842 |
| 754 | libraries | 1 | 44 | 1624 | 666 |
| 754 | Fuzzy algorithms | 3 | 44 | 57 | 131 |
| 761 | Aerospace Engineering | 12 | 43 | 125 | 328 |
| 761 | Product Design | 4 | 43 | 528 | 668 |
| 761 | Wildlife conservation | 1 | 43 | 2218 | 2256 |
| 761 | breastfeeding | 4 | 43 | 527 | 963 |
| 761 | feeding behavior | 2 | 43 | 1157 | 1464 |
| 761 | DNA | 3 | 43 | 737 | 1041 |
| 761 | Appetite | 2 | 43 | 1008 | 1322 |
| 768 | catalytic activity | 2 | 42 | 864 | 1078 |
| 768 | drugs | 4 | 42 | 2529 | 3712 |
| 770 | Nuclear Medicine | 5 | 41 | 1109 | 1681 |
| 770 | Thin Films | 6 | 41 | 400 | 789 |
| 770 | locomotion | 1 | 41 | 1407 | 1178 |
| 770 | Industrial Policy | 2 | 41 | 708 | 793 |
| 770 | posture | 1 | 41 | 1407 | 1178 |
| 770 | organizational effectiveness | 3 | 41 | 470 | 658 |
| 770 | gait | 1 | 41 | 1407 | 1178 |
| 770 | walking | 1 | 41 | 1407 | 1178 |
| 778 | Radiology | 5 | 40 | 1699 | 2338 |
| 778 | Social Psychology | 4 | 40 | 2170 | 3359 |
| 778 | Knowledge management | 6 | 40 | 274 | 568 |
| 778 | Radioisotopes | 7 | 40 | 960 | 1635 |
| 778 | nuclear magnetic resonance spectroscopy | 11 | 40 | 419 | 1073 |
| 778 | NMR | 11 | 40 | 227 | 762 |
| 778 | magnetic resonance | 11 | 40 | 235 | 781 |
| 785 | Environmental Law | 1 | 39 | 2310 | 2574 |
| 785 | Population Genetics | 2 | 39 | 1778 | 2407 |
| 785 | Seaweed | 1 | 39 | 1084 | 1044 |
| 785 | rare diseases | 4 | 39 | 726 | 1330 |
| 785 | Investments | 4 | 39 | 536 | 790 |
| 785 | Marine algae | 1 | 39 | 296 | 221 |
| 791 | Orthopedics | 8 | 38 | 1274 | 2663 |
| 791 | Language Disorders | 1 | 38 | 1632 | 1299 |
| 791 | Development Economics | 2 | 38 | 703 | 771 |
| 791 | Applied Linguistics | 2 | 38 | 844 | 730 |
| 791 | Phonetics | 2 | 38 | 452 | 520 |
| 791 | Orthopedic Surgery | 8 | 38 | 619 | 1552 |
| 791 | Molecular ecology | 1 | 38 | 2085 | 2435 |
| 791 | Eastern Europe | 5 | 38 | 778 | 918 |
| 791 | Planets | 5 | 38 | 1489 | 2779 |
| 791 | Aquaculture | 6 | 38 | 1225 | 2201 |
| 801 | Ergonomics | 2 | 37 | 1580 | 1561 |
| 801 | Asthma | 3 | 37 | 928 | 1307 |
| 801 | Industrial Statistics | 2 | 37 | 319 | 236 |
| 801 | Human Geography | 2 | 37 | 1558 | 1521 |
| 801 | Pharmacokinetics | 3 | 37 | 1199 | 1783 |
| 801 | Molecular Imaging | 3 | 37 | 888 | 1408 |
| 801 | optical instruments | 2 | 37 | 610 | 664 |
| 801 | information warfare | 9 | 37 | 6 | 21 |
| 801 | optical phenomena | 2 | 37 | 172 | 227 |
| 801 | North America | 6 | 37 | 715 | 1465 |
| 801 | drug development | 2 | 37 | 1727 | 2687 |
| 812 | Petroleum Engineering | 4 | 36 | 741 | 1199 |
| 812 | Machine Learning | 9 | 36 | 153 | 633 |
| 812 | Emerging infectious diseases | 2 | 36 | 516 | 850 |
| 812 | Expert Systems | 4 | 36 | 118 | 332 |
| 812 | Health | 3 | 36 | 3024 | 4184 |
| 812 | Ethnology | 1 | 36 | 3020 | 1967 |
| 812 | Tropical Medicine | 1 | 36 | 3777 | 3135 |
| 812 | mutagens | 2 | 36 | 1313 | 1953 |
| 820 | Ophthalmology | 11 | 35 | 1238 | 3099 |
| 820 | Hemostasis | 3 | 35 | 1096 | 1521 |
| 820 | Thrombosis | 3 | 35 | 1471 | 2160 |
| 820 | histological techniques | 2 | 35 | 1095 | 1635 |
| 820 | economic development projects | 1 | 35 | 489 | 382 |
| 820 | plant communities | 1 | 35 | 1921 | 2087 |
| 820 | applications | 2 | 35 | 55 | 20 |
| 827 | Dermatology | 5 | 34 | 1862 | 2933 |
| 827 | Electronic Packaging | 3 | 34 | 199 | 261 |
| 827 | Parkinson's disease | 2 | 34 | 364 | 583 |
| 830 | Multiphase Flow | 1 | 33 | 730 | 735 |
| 830 | gene therapy | 4 | 33 | 1299 | 2501 |
| 832 | Archaeology | 1 | 32 | 2502 | 1883 |
| 832 | Systems Theory | 9 | 32 | 248 | 765 |
| 832 | Information visualization | 7 | 32 | 79 | 219 |
| 832 | Photogrammetry | 10 | 32 | 422 | 723 |
| 832 | Language and Education | 2 | 32 | 212 | 186 |
| 832 | Freeze-Drying | 11 | 32 | 192 | 867 |
| 832 | Hypothermia | 11 | 32 | 192 | 867 |
| 832 | Freeze Drying | 11 | 32 | 192 | 867 |
| 832 | drug therapy | 6 | 32 | 2280 | 4464 |
| 832 | Sites | 1 | 32 | 1076 | 1260 |
| 832 | Evolution equations | 4 | 32 | 113 | 180 |
| 843 | Group decision making | 6 | 31 | 313 | 821 |
| 843 | Lipids | 3 | 31 | 1703 | 2869 |
| 843 | Phytotherapy | 3 | 31 | 1053 | 1853 |
| 843 | Jurisprudence | 3 | 31 | 1149 | 1518 |
| 843 | Allergy | 2 | 31 | 1917 | 2631 |
| 848 | Biogeography | 1 | 30 | 1749 | 2093 |
| 848 | Evolutionary economics | 1 | 30 | 406 | 322 |
| 848 | Diabetes mellitus | 5 | 30 | 2223 | 4394 |
| 848 | Cell division | 2 | 30 | 905 | 1327 |
| 848 | cell adhesion molecules | 2 | 30 | 840 | 1332 |
| 848 | ecosystem | 1 | 30 | 2546 | 2817 |
| 848 | Electromagnetic fields | 8 | 30 | 130 | 320 |
| 848 | Diabetes | 5 | 30 | 2309 | 4435 |
| 848 | Population Dynamics | 1 | 30 | 460 | 400 |
| 857 | Environmental Microbiology | 4 | 29 | 1454 | 3278 |
| 857 | Photography | 7 | 29 | 1496 | 1229 |
| 857 | Organizational learning | 4 | 29 | 393 | 710 |
| 857 | poverty | 1 | 29 | 1024 | 943 |
| 857 | Scheduling | 1 | 29 | 309 | 291 |
| 857 | Production Scheduling | 1 | 29 | 309 | 291 |
| 863 | Anthropology | 2 | 28 | 2479 | 2404 |
| 863 | Cognitive Psychology | 2 | 28 | 598 | 639 |
| 863 | Geometry | 2 | 28 | 1641 | 1305 |
| 863 | Chemotherapy | 4 | 28 | 1745 | 3081 |
| 863 | Geochemistry | 8 | 28 | 1548 | 3495 |
| 863 | Cell cycle | 6 | 28 | 207 | 782 |
| 863 | cell proliferation | 6 | 28 | 245 | 832 |
| 863 | Liposomes | 1 | 28 | 1150 | 1128 |
| 863 | tests | 2 | 28 | 265 | 425 |
| 872 | Neurolinguistics | 3 | 27 | 509 | 981 |
| 872 | Sustainable agriculture | 3 | 27 | 883 | 1503 |
| 872 | Metallic Glasses | 2 | 27 | 628 | 872 |
| 872 | Parallel Processing | 3 | 27 | 84 | 178 |
| 872 | Cell surface receptors | 1 | 27 | 351 | 300 |
| 872 | Multiple sclerosis | 5 | 27 | 549 | 1044 |
| 872 | Instructional systems | 2 | 27 | 234 | 305 |
| 872 | children | 1 | 27 | 1142 | 1039 |
| 880 | Zoology | 2 | 26 | 3705 | 3933 |
| 880 | Political Science | 1 | 26 | 3299 | 2125 |
| 880 | Emergency Medicine | 3 | 26 | 2119 | 2865 |
| 880 | Regeneration | 3 | 26 | 61 | 152 |
| 880 | Waste management | 3 | 26 | 1678 | 2545 |
| 880 | local government | 1 | 26 | 668 | 657 |
| 880 | Gerontology | 1 | 26 | 3914 | 3291 |
| 880 | Formal Languages | 5 | 26 | 143 | 269 |
| 880 | Spectroscopy | 8 | 26 | 83 | 199 |
| 880 | Teaching | 1 | 26 | 3444 | 2676 |
| 880 | Biomolecules | 2 | 26 | 695 | 1244 |
| 891 | Geography | 1 | 25 | 4258 | 3873 |
| 891 | Physical Therapy | 1 | 25 | 2687 | 2785 |
| 891 | Magnetic Resonance Imaging | 3 | 25 | 726 | 1193 |
| 891 | Mass Spectrometry | 3 | 25 | 1531 | 2330 |
| 891 | Respiratory system | 2 | 25 | 959 | 1522 |
| 896 | Amyotrophic Lateral Sclerosis | 1 | 24 | 588 | 675 |
| 896 | Homeostasis | 1 | 24 | 1016 | 1584 |
| 896 | Middle East | 1 | 24 | 2052 | 1408 |
| 896 | textile fibers | 1 | 24 | 1069 | 783 |
| 896 | Cell metabolism | 1 | 24 | 1526 | 1955 |
| 901 | Speech-Language Pathology | 4 | 23 | 249 | 617 |
| 901 | Psychosomatic Medicine | 2 | 23 | 1323 | 2014 |
| 901 | mutation | 1 | 23 | 1324 | 1635 |
| 901 | biobanks | 4 | 23 | 109 | 366 |
| 901 | Parasitology | 1 | 23 | 4234 | 4259 |
| 901 | Biometrics | 3 | 23 | 1358 | 1978 |
| 901 | Aviation | 7 | 23 | 43 | 161 |
| 901 | automatic speech recognition | 4 | 23 | 104 | 408 |
| 901 | technical education | 1 | 23 | 1029 | 880 |
| 910 | Geomorphology | 3 | 22 | 1580 | 2669 |
| 910 | Thermodynamics | 8 | 22 | 765 | 1744 |
| 910 | Clinical Biochemistry | 3 | 22 | 1742 | 2728 |
| 910 | Integrative Medicine | 2 | 22 | 469 | 515 |
| 910 | Antibacterial agents | 2 | 22 | 1160 | 1983 |
| 910 | older people | 1 | 22 | 3374 | 2677 |
| 910 | Wind power | 1 | 22 | 683 | 641 |
| 910 | winds | 1 | 22 | 301 | 217 |
| 918 | Psychiatric Nursing | 1 | 21 | 1416 | 1380 |
| 918 | Oral Medicine | 7 | 21 | 440 | 1206 |
| 918 | Semiotics | 2 | 21 | 538 | 367 |
| 918 | Video Games | 2 | 21 | 111 | 167 |
| 918 | Hypertension in pregnancy | 3 | 21 | 365 | 444 |
| 918 | Japan | 3 | 21 | 2647 | 3528 |
| 918 | drug toxicity | 1 | 21 | 1108 | 1374 |
| 925 | Adult Education | 1 | 20 | 1205 | 924 |
| 925 | Evolutionary Genetics | 1 | 20 | 1567 | 1838 |
| 925 | Molecular Epidemiology | 1 | 20 | 1567 | 1838 |
| 925 | Continuing Education | 1 | 20 | 902 | 699 |
| 925 | Metaphor | 1 | 20 | 64 | 95 |
| 925 | X-ray spectroscopy | 3 | 20 | 268 | 472 |
| 925 | Immunogenetics | 1 | 20 | 1562 | 1747 |
| 925 | Labor Unions | 1 | 20 | 584 | 389 |
| 925 | labor | 1 | 20 | 799 | 580 |
| 925 | Groundwater | 2 | 20 | 1043 | 1459 |
| 925 | Labor history | 1 | 20 | 219 | 97 |
| 925 | Enzyme | 1 | 20 | 1012 | 1352 |
| 925 | Labor Movement | 1 | 20 | 440 | 237 |
| 925 | Minerals | 4 | 20 | 736 | 1799 |
| 925 | Phylogeny | 1 | 20 | 1678 | 2182 |
| 940 | bioclimatology | 2 | 19 | 1384 | 2131 |
| 940 | Corporate Social Responsibility | 1 | 19 | 656 | 970 |
| 940 | environmental auditing | 1 | 19 | 682 | 983 |
| 940 | risk factors | 1 | 19 | 1554 | 1694 |
| 940 | Health insurance | 1 | 19 | 1054 | 1130 |
| 940 | monitoring | 2 | 19 | 477 | 693 |
| 940 | Social support | 1 | 19 | 443 | 595 |
| 940 | Social environment | 1 | 19 | 524 | 674 |
| 940 | atmosphere | 4 | 19 | 817 | 1821 |
| 940 | biomimicry | 2 | 19 | 218 | 447 |
| 940 | Thorax | 1 | 19 | 1080 | 1382 |
| 951 | Bioenergetics | 2 | 18 | 1303 | 2012 |
| 951 | Friction | 2 | 18 | 150 | 393 |
| 951 | Communication in medicine | 1 | 18 | 1115 | 1310 |
| 951 | Antibodies | 1 | 18 | 1480 | 1700 |
| 951 | economic conditions | 3 | 18 | 730 | 1075 |
| 951 | Antigens | 1 | 18 | 1890 | 2137 |
| 951 | Combinatorial analysis | 9 | 18 | 717 | 1305 |
| 951 | Stress | 2 | 18 | 414 | 849 |
| 959 | Industrial Design | 3 | 17 | 267 | 663 |
| 959 | Algebra | 3 | 17 | 1697 | 1742 |
| 959 | Telemedicine | 3 | 17 | 474 | 1325 |
| 959 | Social Networks | 1 | 17 | 757 | 807 |
| 959 | Multiscale Modeling | 3 | 17 | 31 | 48 |
| 959 | Online social networks | 1 | 17 | 762 | 818 |
| 959 | Advertising | 1 | 17 | 681 | 878 |
| 959 | Culture | 4 | 17 | 1065 | 1757 |
| 967 | Political Psychology | 1 | 16 | 627 | 813 |
| 967 | Political Sociology | 1 | 16 | 840 | 841 |
| 967 | Nuclear Chemistry | 3 | 16 | 1401 | 1946 |
| 967 | Radiochemistry | 3 | 16 | 1299 | 1802 |
| 967 | Virtual reality | 2 | 16 | 543 | 870 |
| 967 | Protective coatings | 3 | 16 | 159 | 322 |
| 967 | Pacific Islands | 2 | 16 | 529 | 766 |
| 967 | atmospheric models | 1 | 16 | 1239 | 1543 |
| 967 | extraterrestrial environment | 3 | 16 | 761 | 1389 |
| 967 | astronomical phenomena | 3 | 16 | 679 | 1269 |
| 967 | Biodiversity | 3 | 16 | 2799 | 4650 |
| 978 | Soil Science | 3 | 15 | 2181 | 3696 |
| 978 | Supply Chain Management | 2 | 15 | 90 | 195 |
| 978 | Topology | 1 | 15 | 606 | 508 |
| 978 | Reproductive health | 3 | 15 | 983 | 2115 |
| 978 | Well-being | 1 | 15 | 338 | 421 |
| 978 | Water Purification | 2 | 15 | 1667 | 2508 |
| 978 | Metabolic syndrome | 3 | 15 | 245 | 876 |
| 978 | Water quality management | 2 | 15 | 2698 | 3833 |
| 978 | Freezing | 1 | 15 | 755 | 746 |
| 978 | protein | 3 | 15 | 1573 | 2780 |
| 978 | sexual behavior | 1 | 15 | 1380 | 1684 |
| 989 | Philosophy | 1 | 14 | 2833 | 1725 |
| 989 | Inventory Control | 1 | 14 | 201 | 355 |
| 989 | Inorganic Chemistry | 1 | 14 | 335 | 581 |
| 989 | Architectural Design | 1 | 14 | 904 | 856 |
| 989 | Operator theory | 2 | 14 | 600 | 661 |
| 989 | Heterocyclic chemistry | 2 | 14 | 837 | 1064 |
| 989 | Sustainable urban development | 2 | 14 | 76 | 196 |
| 989 | Adsorption | 1 | 14 | 485 | 581 |
| 989 | Plasma chemistry | 2 | 14 | 599 | 1036 |
| 989 | Neurotransmitters | 2 | 14 | 895 | 1091 |
| 989 | Indoor air quality | 2 | 14 | 136 | 256 |
| 989 | Air Conditioning | 2 | 14 | 288 | 474 |