| 1 | Chemistry | 1,036 | 50.6K | 385 | 403 |
| 2 | Materials | 624 | 27.0K | 255 | 255 |
| 3 | Physics | 943 | 24.9K | 429 | 758 |
| 4 | Nanotechnology | 662 | 23.0K | 131 | 236 |
| 5 | Materials Science | 342 | 14.3K | 244 | 260 |
| 6 | Biology | 248 | 14.1K | 809 | 888 |
| 7 | Science | 284 | 12.3K | 803 | 965 |
| 8 | Biocompatible Materials | 269 | 12.2K | 223 | 271 |
| 9 | Catalysis | 254 | 11.7K | 308 | 294 |
| 10 | Analytical Chemistry | 376 | 10.6K | 155 | 245 |
| 11 | nanoscience | 252 | 10.5K | 113 | 178 |
| 12 | Chemical Engineering | 263 | 9.6K | 358 | 404 |
| 13 | Optical materials | 239 | 9.2K | 91 | 133 |
| 14 | Nanostructured Materials | 283 | 9.1K | 120 | 180 |
| 15 | Signal Processing | 293 | 8.8K | 102 | 171 |
| 16 | Polymers | 335 | 8.6K | 298 | 358 |
| 17 | Molecular Biology | 307 | 7.8K | 685 | 951 |
| 18 | polymerization | 286 | 7.8K | 250 | 287 |
| 19 | Image Processing | 231 | 7.6K | 70 | 130 |
| 20 | Nuclear Physics | 293 | 7.5K | 563 | 606 |
| 21 | Biotechnology | 268 | 7.4K | 365 | 629 |
| 22 | Biochemistry | 379 | 6.8K | 821 | 1153 |
| 23 | Biochemical Engineering | 194 | 6.8K | 197 | 385 |
| 24 | Biomedical Engineering | 253 | 6.7K | 271 | 388 |
| 25 | Pharmacology | 185 | 6.7K | 567 | 514 |
| 26 | Statistical physics | 209 | 6.5K | 379 | 348 |
| 27 | Evolutionary Computation | 54 | 6.3K | 21 | 24 |
| 28 | Mathematics | 561 | 6.2K | 282 | 378 |
| 29 | Surface Chemistry | 217 | 5.9K | 280 | 368 |
| 30 | Artificial Intelligence | 245 | 5.8K | 130 | 284 |
| 31 | Genetic algorithms | 28 | 5.7K | 36 | 22 |
| 32 | Neural circuitry | 193 | 5.6K | 48 | 69 |
| 33 | Pollution | 163 | 5.4K | 549 | 775 |
| 34 | Microbiology | 174 | 5.3K | 722 | 913 |
| 35 | Cytology | 70 | 5.1K | 785 | 677 |
| 36 | Colloids | 193 | 5.1K | 329 | 471 |
| 37 | Electrochemistry | 236 | 5.0K | 359 | 389 |
| 38 | Medicine | 278 | 5.0K | 853 | 1323 |
| 39 | Optics | 323 | 4.8K | 285 | 390 |
| 40 | actuators | 144 | 4.8K | 85 | 113 |
| 40 | transducers | 144 | 4.8K | 85 | 113 |
| 42 | Automation | 124 | 4.7K | 196 | 258 |
| 43 | Cell Biology | 50 | 4.6K | 886 | 714 |
| 44 | Systems Engineering | 136 | 4.6K | 78 | 73 |
| 45 | Ecology | 143 | 4.1K | 799 | 1106 |
| 46 | Bioengineering | 138 | 4.0K | 394 | 639 |
| 47 | Information Science | 107 | 4.0K | 153 | 165 |
| 48 | Virology | 25 | 3.9K | 854 | 560 |
| 49 | Cybernetics | 70 | 3.9K | 151 | 149 |
| 50 | Bioinformatics | 137 | 3.9K | 102 | 217 |
| 51 | Research | 187 | 3.6K | 945 | 1253 |
| 52 | Solid State Physics | 194 | 3.6K | 507 | 627 |
| 53 | Environment | 89 | 3.5K | 761 | 1039 |
| 54 | Environmental Management | 62 | 3.5K | 400 | 339 |
| 55 | Environmental Health | 144 | 3.4K | 545 | 839 |
| 56 | Computational Intelligence | 57 | 3.4K | 13 | 6 |
| 57 | fuel cells | 43 | 3.4K | 191 | 162 |
| 58 | Natural history | 14 | 3.3K | 1399 | 1147 |
| 59 | Spectrum analysis | 180 | 3.2K | 450 | 798 |
| 60 | Nanoparticles | 134 | 3.2K | 74 | 155 |
| 61 | Computational Biology | 115 | 3.1K | 191 | 340 |
| 62 | environmental pollution | 103 | 2.9K | 547 | 787 |
| 63 | Multimedia Systems | 113 | 2.8K | 70 | 76 |
| 64 | Magnetic Materials | 103 | 2.8K | 85 | 117 |
| 65 | Information Theory | 150 | 2.6K | 54 | 140 |
| 66 | Intelligent Transportation Systems | 60 | 2.6K | 95 | 106 |
| 67 | Nanostructures | 91 | 2.5K | 91 | 262 |
| 68 | Pharmacognosy | 103 | 2.5K | 95 | 201 |
| 69 | Condensed Matter | 166 | 2.5K | 508 | 711 |
| 70 | Energy Conversion | 32 | 2.5K | 267 | 297 |
| 71 | Green Chemistry | 44 | 2.4K | 311 | 307 |
| 72 | China | 190 | 2.3K | 127 | 226 |
| 73 | Toxicology | 76 | 2.3K | 795 | 868 |
| 74 | Medicinal plants | 92 | 2.2K | 48 | 144 |
| 75 | Food | 67 | 2.2K | 434 | 500 |
| 76 | miniaturization | 106 | 2.2K | 141 | 399 |
| 77 | Wireless Communication Systems | 134 | 2.2K | 184 | 319 |
| 78 | pigments | 108 | 2.1K | 11 | 23 |
| 79 | Renewable Energy Sources | 26 | 2.1K | 772 | 687 |
| 80 | multimedia | 45 | 2.0K | 54 | 50 |
| 80 | Interactive multimedia | 45 | 2.0K | 55 | 51 |
| 82 | Pharmaceutical Chemistry | 104 | 2.0K | 469 | 704 |
| 83 | Power Electronics | 61 | 1.9K | 146 | 209 |
| 84 | internet | 47 | 1.9K | 190 | 202 |
| 85 | Internet of Things | 46 | 1.9K | 151 | 156 |
| 86 | Composite Materials | 53 | 1.9K | 566 | 653 |
| 87 | Solid State Chemistry | 88 | 1.9K | 311 | 334 |
| 88 | Environmental Chemistry | 19 | 1.9K | 640 | 453 |
| 89 | Electromagnetism | 101 | 1.8K | 37 | 94 |
| 90 | Biophysics | 122 | 1.8K | 865 | 1297 |
| 91 | Molecular Spectroscopy | 78 | 1.8K | 112 | 126 |
| 92 | Mathematical Physics | 81 | 1.8K | 502 | 487 |
| 93 | Electronics | 135 | 1.8K | 362 | 600 |
| 94 | Control Theory | 105 | 1.7K | 150 | 238 |
| 95 | Biosensors | 41 | 1.7K | 173 | 252 |
| 96 | Microelectronics | 59 | 1.7K | 271 | 399 |
| 97 | environmental protection | 61 | 1.7K | 510 | 728 |
| 98 | Carbon | 29 | 1.7K | 268 | 288 |
| 99 | vibration | 31 | 1.7K | 230 | 147 |
| 100 | Structural dynamics | 29 | 1.7K | 227 | 189 |
| 101 | Statistics | 154 | 1.6K | 217 | 432 |
| 102 | Nutrition | 44 | 1.6K | 960 | 931 |
| 103 | Environmental Toxicology | 44 | 1.6K | 397 | 486 |
| 104 | Energy Policy | 46 | 1.5K | 496 | 696 |
| 105 | Environmental pollutants | 46 | 1.5K | 327 | 376 |
| 106 | Herbal medicine | 54 | 1.5K | 41 | 59 |
| 107 | Industrial Microbiology | 49 | 1.5K | 228 | 404 |
| 108 | Environmental Policy | 38 | 1.5K | 735 | 850 |
| 109 | mathematical analysis | 93 | 1.5K | 306 | 295 |
| 110 | computer networks | 82 | 1.5K | 254 | 435 |
| 111 | pollutants | 42 | 1.4K | 265 | 329 |
| 112 | health planning | 52 | 1.4K | 280 | 221 |
| 113 | environmental exposure | 39 | 1.4K | 287 | 273 |
| 114 | Environmental monitoring | 51 | 1.4K | 749 | 1043 |
| 115 | Metals | 45 | 1.4K | 419 | 444 |
| 116 | Bioelectronics | 33 | 1.4K | 173 | 258 |
| 117 | Immunology | 34 | 1.4K | 846 | 857 |
| 118 | Telecommunication Systems | 62 | 1.4K | 118 | 113 |
| 119 | Biomass Energy | 27 | 1.3K | 677 | 703 |
| 120 | Organometallic chemistry | 73 | 1.3K | 155 | 183 |
| 121 | Nonlinear Dynamics | 44 | 1.3K | 524 | 496 |
| 122 | lasers | 127 | 1.3K | 152 | 321 |
| 123 | Computational Complexity | 58 | 1.3K | 29 | 16 |
| 124 | Medical Laboratory Science | 37 | 1.3K | 408 | 529 |
| 125 | Radio | 55 | 1.3K | 247 | 385 |
| 126 | Sustainable Engineering | 41 | 1.2K | 251 | 381 |
| 127 | System analysis | 61 | 1.2K | 321 | 417 |
| 128 | Engineering | 82 | 1.2K | 555 | 786 |
| 129 | Boundary Value Problems | 77 | 1.2K | 27 | 81 |
| 130 | Detectors | 76 | 1.2K | 93 | 183 |
| 131 | Astronomy | 34 | 1.2K | 941 | 938 |
| 132 | Photonics | 81 | 1.2K | 249 | 574 |
| 133 | Antenna Arrays | 71 | 1.1K | 26 | 83 |
| 134 | Fuzzy systems | 97 | 1.1K | 46 | 105 |
| 135 | Nervous system | 35 | 1.1K | 595 | 676 |
| 136 | Radio waves | 51 | 1.1K | 148 | 226 |
| 137 | Nanochemistry | 53 | 1.1K | 64 | 68 |
| 138 | Computer Graphics | 59 | 1.1K | 240 | 363 |
| 139 | Environmental Engineering | 38 | 1.1K | 901 | 1065 |
| 140 | Organic Chemistry | 55 | 1.1K | 750 | 903 |
| 141 | Computer Vision | 51 | 1.1K | 125 | 315 |
| 142 | Electrochemical Analysis | 59 | 1.0K | 172 | 288 |
| 143 | Numerical Analysis | 65 | 1.0K | 307 | 398 |
| 144 | Membranes | 25 | 1.0K | 564 | 602 |
| 145 | Pharmaceutical Technology | 42 | 995 | 217 | 327 |
| 146 | Technology | 75 | 982 | 593 | 947 |
| 147 | drug evaluation | 44 | 973 | 110 | 168 |
| 148 | cytokines | 38 | 960 | 140 | 256 |
| 149 | Astrophysics | 61 | 930 | 862 | 1154 |
| 150 | Information Technology | 48 | 921 | 302 | 617 |
| 150 | Process Control | 10 | 921 | 434 | 331 |
| 150 | Production Management | 10 | 921 | 584 | 471 |
| 153 | sanitation | 23 | 918 | 465 | 666 |
| 154 | environmental indicators | 26 | 906 | 171 | 241 |
| 155 | Electrical Engineering | 82 | 890 | 524 | 606 |
| 156 | Semiconductors | 50 | 887 | 338 | 346 |
| 157 | Chromatographic analysis | 56 | 871 | 213 | 315 |
| 158 | proteins | 38 | 865 | 416 | 531 |
| 159 | Molecules | 35 | 859 | 382 | 377 |
| 160 | probabilities | 79 | 855 | 136 | 197 |
| 161 | Molecular structure | 32 | 833 | 586 | 632 |
| 162 | Drug delivery systems | 42 | 821 | 192 | 490 |
| 163 | Ceramics | 38 | 819 | 251 | 305 |
| 164 | Telecommunication | 67 | 813 | 407 | 780 |
| 165 | Agricultural Chemistry | 34 | 812 | 487 | 660 |
| 165 | Immunity | 5 | 812 | 1142 | 785 |
| 167 | Immunotherapy | 40 | 808 | 323 | 610 |
| 168 | Microbial Ecology | 27 | 802 | 637 | 932 |
| 169 | Biopharmaceutics | 39 | 780 | 121 | 274 |
| 170 | Energy Storage | 30 | 762 | 244 | 377 |
| 171 | Surface-Active Agents | 31 | 761 | 132 | 262 |
| 171 | Surface properties | 31 | 761 | 144 | 289 |
| 173 | Organometallic compounds | 39 | 758 | 225 | 345 |
| 174 | energy development | 3 | 756 | 827 | 291 |
| 175 | Immunopharmacology | 35 | 744 | 136 | 203 |
| 176 | mycoses | 9 | 741 | 367 | 318 |
| 177 | energy conservation | 27 | 732 | 502 | 818 |
| 178 | Drug design | 39 | 726 | 177 | 400 |
| 179 | Mechatronics | 45 | 723 | 93 | 192 |
| 180 | Host-parasite interactions | 6 | 716 | 729 | 559 |
| 181 | Genomics | 38 | 709 | 714 | 999 |
| 182 | Pharmacy | 35 | 706 | 468 | 625 |
| 183 | Chemical analysis | 26 | 696 | 203 | 255 |
| 184 | Neurology | 39 | 692 | 1287 | 1688 |
| 185 | pottery | 34 | 685 | 201 | 294 |
| 186 | Fiber Optics | 50 | 681 | 139 | 232 |
| 187 | Bacterial infections | 2 | 679 | 852 | 339 |
| 187 | Glass | 33 | 679 | 215 | 304 |
| 189 | Physiology | 26 | 677 | 1334 | 1462 |
| 190 | Nonlinear functional analysis | 26 | 673 | 244 | 185 |
| 191 | electric vehicles | 36 | 661 | 30 | 60 |
| 192 | Chromatography | 38 | 657 | 260 | 357 |
| 193 | management | 22 | 639 | 1291 | 1423 |
| 194 | enzymes | 22 | 637 | 444 | 495 |
| 195 | Electrophoresis | 34 | 635 | 305 | 453 |
| 195 | Bioorganic chemistry | 49 | 635 | 596 | 1054 |
| 197 | Primates | 25 | 632 | 146 | 172 |
| 198 | Industrial Safety | 10 | 630 | 531 | 265 |
| 199 | Plastics | 34 | 617 | 311 | 416 |
| 200 | Water | 24 | 614 | 806 | 1169 |
| 201 | Remote Sensing | 20 | 610 | 446 | 281 |
| 202 | Inflammation | 19 | 608 | 287 | 405 |
| 203 | Social Change | 7 | 598 | 630 | 445 |
| 204 | gastrointestinal tract | 4 | 595 | 245 | 98 |
| 205 | Solitons | 36 | 590 | 127 | 249 |
| 205 | Fractals | 36 | 590 | 129 | 250 |
| 205 | Chaos | 36 | 590 | 127 | 249 |
| 208 | Transportation | 15 | 584 | 672 | 599 |
| 209 | viruses | 11 | 573 | 613 | 607 |
| 210 | Industrial Engineering | 25 | 568 | 493 | 601 |
| 211 | Swarm Intelligence | 26 | 558 | 20 | 81 |
| 212 | food technology | 26 | 556 | 784 | 1050 |
| 213 | Logistics | 11 | 553 | 193 | 183 |
| 214 | Cell differentiation | 9 | 552 | 766 | 771 |
| 215 | Operations Research | 22 | 548 | 813 | 853 |
| 216 | gene mapping | 24 | 542 | 541 | 800 |
| 217 | Botany | 51 | 537 | 965 | 1657 |
| 218 | Clinical Chemistry | 29 | 534 | 751 | 1068 |
| 219 | Cryptography | 32 | 532 | 51 | 66 |
| 220 | Crystal growth | 17 | 530 | 327 | 296 |
| 221 | Behavior | 13 | 514 | 1405 | 1497 |
| 222 | Cognitive Science | 50 | 513 | 194 | 631 |
| 223 | Computer Science | 45 | 506 | 243 | 451 |
| 224 | Manufacturing Processes | 18 | 503 | 902 | 896 |
| 224 | Informatics | 12 | 503 | 324 | 253 |
| 226 | Analytical Biochemistry | 42 | 502 | 226 | 560 |
| 227 | drugs | 27 | 497 | 516 | 709 |
| 228 | Mechanical Engineering | 23 | 495 | 855 | 677 |
| 229 | human behavior | 11 | 492 | 1184 | 1284 |
| 230 | Systems Analysis | 19 | 489 | 301 | 247 |
| 231 | Bioinorganic chemistry | 25 | 488 | 421 | 540 |
| 232 | Functional Analysis | 16 | 481 | 592 | 393 |
| 233 | Measurement | 43 | 479 | 162 | 386 |
| 234 | Geophysics | 28 | 473 | 1168 | 1493 |
| 235 | infrared radiation | 19 | 465 | 110 | 65 |
| 236 | Tourism | 14 | 460 | 667 | 809 |
| 237 | Water pollution | 21 | 458 | 999 | 1382 |
| 238 | natural products | 51 | 455 | 214 | 567 |
| 239 | Neurochemistry | 12 | 451 | 1105 | 1042 |
| 240 | Optical Communications | 36 | 448 | 94 | 164 |
| 241 | Land use | 5 | 447 | 842 | 436 |
| 242 | Mobile Computing | 23 | 440 | 262 | 379 |
| 242 | Asia | 32 | 440 | 580 | 717 |
| 244 | Cancer | 23 | 430 | 995 | 1387 |
| 245 | Hypertension | 9 | 419 | 723 | 792 |
| 246 | dietary supplements | 26 | 418 | 89 | 270 |
| 247 | rehabilitation | 12 | 416 | 965 | 860 |
| 248 | Metallurgy | 24 | 411 | 735 | 893 |
| 249 | Chromosome mapping | 23 | 410 | 492 | 821 |
| 250 | Cell cycle | 2 | 404 | 355 | 75 |
| 250 | cell proliferation | 2 | 404 | 390 | 79 |
| 252 | Zoology | 27 | 403 | 812 | 918 |
| 252 | Nanobiotechnology | 9 | 403 | 131 | 201 |
| 254 | biological factors | 36 | 402 | 354 | 777 |
| 255 | Group decision making | 12 | 400 | 155 | 139 |
| 256 | Cardiovascular system | 2 | 397 | 1174 | 827 |
| 257 | Building Materials | 13 | 395 | 864 | 1075 |
| 258 | Signal Transduction | 16 | 392 | 523 | 766 |
| 258 | finance | 21 | 392 | 843 | 950 |
| 260 | Robotics | 37 | 391 | 361 | 739 |
| 260 | Differential Equations | 15 | 391 | 425 | 345 |
| 262 | Economics | 33 | 390 | 1330 | 1613 |
| 263 | Atomic spectroscopy | 19 | 388 | 381 | 403 |
| 263 | energy resources | 7 | 388 | 842 | 937 |
| 263 | Biodiversity | 28 | 388 | 565 | 986 |
| 266 | Oncogenes | 5 | 385 | 708 | 689 |
| 267 | city planning | 6 | 384 | 1100 | 646 |
| 268 | Quantum Gravity | 33 | 382 | 819 | 1082 |
| 269 | Communication | 23 | 379 | 648 | 926 |
| 270 | catalytic activity | 13 | 374 | 231 | 302 |
| 271 | Luminescence | 18 | 371 | 411 | 384 |
| 272 | Dynamics | 41 | 362 | 237 | 495 |
| 272 | Intelligent Control Systems | 53 | 362 | 69 | 184 |
| 274 | Quantum Optics | 19 | 360 | 270 | 296 |
| 274 | Proteome | 7 | 360 | 660 | 579 |
| 276 | Solar Energy | 11 | 358 | 851 | 948 |
| 276 | Parasitic Diseases | 8 | 358 | 1111 | 858 |
| 278 | Oncology | 11 | 357 | 932 | 1291 |
| 278 | Laser Spectroscopy | 18 | 357 | 243 | 262 |
| 280 | Radiography | 8 | 354 | 385 | 481 |
| 281 | Urban Policy | 3 | 353 | 877 | 346 |
| 282 | Technological Innovations | 11 | 351 | 399 | 424 |
| 283 | Nonlinear systems | 20 | 350 | 120 | 188 |
| 284 | Microstructure | 13 | 349 | 283 | 150 |
| 285 | Zeolites | 8 | 346 | 517 | 468 |
| 285 | cell interaction | 10 | 346 | 487 | 560 |
| 287 | Liver diseases | 3 | 345 | 1017 | 763 |
| 288 | Coding Theory | 25 | 341 | 43 | 48 |
| 288 | Birds | 18 | 341 | 406 | 395 |
| 290 | Drug targeting | 11 | 340 | 69 | 127 |
| 290 | Parasitology | 8 | 340 | 1387 | 996 |
| 292 | Economic History | 24 | 336 | 1117 | 1247 |
| 293 | Atmospheric Physics | 15 | 335 | 626 | 823 |
| 294 | Biodiversity conservation | 19 | 334 | 543 | 1125 |
| 295 | Environmental Geology | 16 | 333 | 602 | 801 |
| 295 | Diagnostic Imaging | 29 | 333 | 443 | 784 |
| 297 | Microwaves | 62 | 332 | 236 | 507 |
| 298 | Alternative Medicine | 17 | 331 | 413 | 619 |
| 299 | Physical Chemistry | 18 | 329 | 881 | 1096 |
| 300 | Parallel Processing | 9 | 323 | 228 | 248 |
| 300 | Plants | 26 | 323 | 587 | 1110 |
| 302 | Cell death | 14 | 321 | 471 | 741 |
| 303 | Genetics | 25 | 319 | 1088 | 1862 |
| 304 | Visual Communication | 18 | 318 | 57 | 86 |
| 304 | Image enhancement | 18 | 318 | 50 | 81 |
| 306 | Plant physiology | 24 | 317 | 720 | 1287 |
| 307 | Japan | 14 | 314 | 660 | 559 |
| 308 | Recycling | 5 | 311 | 412 | 498 |
| 309 | Microbial Biotechnology | 16 | 308 | 212 | 404 |
| 309 | Ornithology | 17 | 308 | 343 | 352 |
| 309 | Entropy | 24 | 308 | 177 | 301 |
| 312 | Data Mining | 29 | 307 | 276 | 811 |
| 313 | Microscopy | 23 | 306 | 325 | 509 |
| 314 | complementary therapies | 17 | 305 | 462 | 688 |
| 315 | Aging | 11 | 303 | 1241 | 1190 |
| 316 | Soil Science | 11 | 302 | 920 | 1042 |
| 317 | Information Retrieval | 10 | 301 | 165 | 223 |
| 317 | Porous materials | 6 | 301 | 488 | 179 |
| 319 | Smart Materials | 23 | 300 | 199 | 396 |
| 319 | Dementia | 1 | 300 | 1655 | 462 |
| 319 | Alzheimer's disease | 1 | 300 | 1672 | 506 |
| 322 | Neurophysiology | 15 | 299 | 1191 | 1484 |
| 323 | Computer Engineering | 12 | 298 | 314 | 258 |
| 324 | disease vectors | 6 | 297 | 627 | 441 |
| 324 | Parasites | 6 | 297 | 1095 | 697 |
| 326 | Histology | 13 | 295 | 824 | 971 |
| 327 | Plant cells | 7 | 291 | 657 | 913 |
| 328 | Genetic engineering | 23 | 282 | 625 | 1124 |
| 328 | Adaptive control systems | 24 | 282 | 85 | 155 |
| 328 | United States | 12 | 282 | 2391 | 2277 |
| 331 | Sustainable Development | 14 | 279 | 765 | 1183 |
| 332 | Cellulose | 11 | 274 | 201 | 305 |
| 333 | Engineering Geology | 6 | 273 | 975 | 802 |
| 334 | Biomarkers | 4 | 272 | 302 | 92 |
| 334 | Energy Harvesting | 5 | 272 | 313 | 408 |
| 334 | biochemical markers | 4 | 272 | 486 | 199 |
| 334 | Developing countries | 14 | 272 | 942 | 1120 |
| 338 | United Kingdom | 10 | 266 | 719 | 817 |
| 338 | Decision making | 14 | 266 | 542 | 725 |
| 340 | International Finance | 11 | 263 | 881 | 921 |
| 341 | Earth Sciences | 27 | 262 | 1103 | 1731 |
| 342 | Pharmacokinetics | 8 | 261 | 407 | 442 |
| 343 | Physical organic chemistry | 20 | 260 | 477 | 736 |
| 344 | Medical Physics | 13 | 259 | 694 | 879 |
| 344 | genome | 16 | 259 | 504 | 986 |
| 346 | Education | 6 | 258 | 2523 | 1579 |
| 347 | plant molecular biology | 16 | 256 | 582 | 1103 |
| 348 | Evidence-Based Medicine | 14 | 254 | 199 | 289 |
| 349 | Structural design | 19 | 253 | 196 | 399 |
| 349 | Superconductors | 25 | 253 | 260 | 335 |
| 351 | Radiation | 30 | 252 | 538 | 976 |
| 351 | biological evolution | 8 | 252 | 1147 | 1373 |
| 353 | Molecular Genetics | 4 | 249 | 1356 | 1187 |
| 354 | Nuclear Fusion | 47 | 248 | 114 | 235 |
| 355 | Molecular cloning | 17 | 243 | 458 | 759 |
| 355 | Genetic recombination | 17 | 243 | 445 | 751 |
| 355 | Recombinant DNA | 17 | 243 | 504 | 794 |
| 358 | economic policy | 18 | 241 | 917 | 975 |
| 359 | Quantum electronics | 25 | 239 | 467 | 750 |
| 360 | Optoelectronics | 25 | 238 | 72 | 97 |
| 360 | coal | 14 | 238 | 689 | 1173 |
| 362 | Population Genetics | 13 | 237 | 526 | 797 |
| 363 | big data | 19 | 235 | 56 | 254 |
| 364 | Medical innovations | 3 | 229 | 804 | 808 |
| 365 | Atmospheric Chemistry | 11 | 228 | 442 | 697 |
| 366 | biopolymers | 14 | 227 | 483 | 688 |
| 367 | Cloud Computing | 10 | 226 | 89 | 139 |
| 368 | Public Policy | 10 | 225 | 864 | 1005 |
| 368 | Stochastic Processes | 30 | 225 | 116 | 334 |
| 370 | pharmaceutical industry | 10 | 224 | 224 | 212 |
| 370 | Cell communication | 4 | 224 | 453 | 420 |
| 372 | Medical genetics | 11 | 222 | 1056 | 1478 |
| 373 | Oxidative stress | 7 | 220 | 478 | 773 |
| 374 | Anti-inflammatory agents | 9 | 219 | 68 | 96 |
| 375 | drug development | 1 | 218 | 1301 | 747 |
| 376 | cell adhesion molecules | 3 | 216 | 157 | 158 |
| 377 | Systems Biology | 8 | 213 | 803 | 858 |
| 378 | Geographic information systems | 10 | 212 | 498 | 467 |
| 379 | Brain | 12 | 209 | 1252 | 1577 |
| 380 | Agricultural Engineering | 4 | 207 | 361 | 249 |
| 381 | Egypt | 3 | 205 | 528 | 269 |
| 382 | Geriatrics | 5 | 202 | 1933 | 1479 |
| 383 | Plant diseases | 13 | 201 | 920 | 1127 |
| 384 | Hydrology | 10 | 199 | 1264 | 1474 |
| 384 | Investment analysis | 14 | 199 | 240 | 499 |
| 386 | Molecular ecology | 2 | 198 | 1113 | 883 |
| 387 | Probability | 18 | 197 | 150 | 322 |
| 387 | protein | 15 | 197 | 454 | 711 |
| 389 | Quantum theory | 14 | 196 | 415 | 545 |
| 390 | Metabolism | 13 | 193 | 1047 | 1608 |
| 390 | radiative transfer | 19 | 193 | 182 | 300 |
| 392 | Ceramic materials | 16 | 191 | 491 | 801 |
| 393 | Nuclear Engineering | 38 | 190 | 338 | 669 |
| 394 | Soft Condensed Matter | 13 | 187 | 479 | 684 |
| 395 | Software Engineering | 6 | 185 | 694 | 606 |
| 395 | Developmental Biology | 7 | 185 | 1132 | 1371 |
| 395 | Enzyme | 6 | 185 | 306 | 414 |
| 398 | solar power | 4 | 182 | 677 | 686 |
| 398 | solar cells | 4 | 182 | 736 | 732 |
| 400 | biofuels | 5 | 181 | 163 | 312 |
| 401 | Social Sciences | 20 | 179 | 1232 | 1760 |
| 402 | Meteorology | 10 | 177 | 1141 | 1594 |
| 402 | Insects | 8 | 177 | 878 | 820 |
| 404 | Combinatorial analysis | 31 | 175 | 211 | 404 |
| 405 | machinery | 3 | 170 | 815 | 414 |
| 406 | free radicals | 7 | 166 | 806 | 1157 |
| 407 | Information Systems | 10 | 160 | 661 | 960 |
| 408 | Heat Exchangers | 7 | 153 | 833 | 1102 |
| 409 | nucleic acids | 5 | 152 | 1110 | 1263 |
| 409 | Stem cells | 4 | 152 | 996 | 978 |
| 411 | Bifurcation Theory | 7 | 151 | 107 | 125 |
| 412 | Genetic therapy | 5 | 150 | 681 | 768 |
| 412 | Imaging systems | 26 | 150 | 84 | 309 |
| 414 | Environmental Microbiology | 10 | 149 | 655 | 1254 |
| 414 | Plant Ecology | 8 | 149 | 1037 | 1449 |
| 414 | Mycology | 8 | 149 | 911 | 1146 |
| 414 | Australia | 14 | 149 | 693 | 1051 |
| 418 | Psychiatry | 13 | 148 | 1779 | 2547 |
| 419 | Wireless Communication | 8 | 147 | 185 | 169 |
| 420 | Humanities | 17 | 146 | 519 | 815 |
| 421 | reasoning | 12 | 145 | 86 | 224 |
| 421 | atmospheric models | 8 | 145 | 380 | 554 |
| 423 | soil microbiology | 8 | 144 | 843 | 1428 |
| 424 | Photochemistry | 11 | 142 | 835 | 1270 |
| 424 | Photobiology | 11 | 142 | 594 | 1024 |
| 426 | Molecular Pharmacology | 6 | 141 | 528 | 727 |
| 427 | acupuncture | 38 | 139 | 15 | 32 |
| 428 | soil conservation | 11 | 137 | 268 | 626 |
| 429 | peptides | 10 | 135 | 304 | 442 |
| 429 | carbon monoxide | 4 | 135 | 260 | 345 |
| 431 | Ocean Engineering | 7 | 134 | 1095 | 1297 |
| 431 | Minerals | 11 | 134 | 249 | 551 |
| 433 | DNA polymerases | 1 | 132 | 563 | 574 |
| 433 | Oxidation-reduction | 4 | 132 | 635 | 886 |
| 435 | Soil Mechanics | 1 | 131 | 1452 | 835 |
| 435 | Lipids | 7 | 131 | 768 | 1089 |
| 437 | gene therapy | 4 | 130 | 729 | 798 |
| 438 | Simulation Methods | 4 | 129 | 875 | 657 |
| 438 | Raman spectroscopy | 6 | 129 | 511 | 595 |
| 440 | Geology | 17 | 128 | 1290 | 1937 |
| 441 | Environmental Geochemistry | 10 | 127 | 135 | 352 |
| 442 | ecosystem | 5 | 126 | 976 | 1226 |
| 443 | Paleoecology | 5 | 124 | 805 | 874 |
| 443 | Vaccines | 7 | 124 | 971 | 1204 |
| 445 | soil management | 2 | 123 | 664 | 569 |
| 445 | tillage | 2 | 123 | 492 | 491 |
| 447 | Social Psychology | 7 | 122 | 1409 | 1727 |
| 447 | soil pollution | 8 | 122 | 202 | 383 |
| 447 | Mineral resources | 5 | 122 | 429 | 631 |
| 450 | Integrative Medicine | 15 | 121 | 59 | 103 |
| 450 | Crystallography | 30 | 121 | 456 | 747 |
| 452 | animals | 12 | 119 | 539 | 770 |
| 453 | Tropical Medicine | 2 | 118 | 1886 | 1193 |
| 453 | Entomology | 10 | 118 | 1266 | 1398 |
| 453 | Psychophysiology | 7 | 118 | 1648 | 2068 |
| 456 | Biogeochemistry | 5 | 117 | 783 | 1054 |
| 456 | Chemical industry | 12 | 117 | 570 | 856 |
| 458 | Forest Ecology | 8 | 116 | 591 | 916 |
| 458 | Forest Management | 8 | 116 | 551 | 875 |
| 460 | Geomorphology | 5 | 115 | 1060 | 1310 |
| 460 | fusion reactors | 33 | 115 | 83 | 186 |
| 462 | economic analysis | 11 | 113 | 55 | 198 |
| 463 | Statistical Mechanics | 14 | 111 | 251 | 419 |
| 463 | Teaching | 4 | 111 | 1511 | 1255 |
| 465 | Insect biochemistry | 1 | 110 | 717 | 438 |
| 466 | starch | 3 | 109 | 342 | 249 |
| 466 | plant communities | 5 | 109 | 777 | 1082 |
| 468 | Neurobiology | 4 | 108 | 1188 | 1394 |
| 468 | isomerism | 1 | 108 | 625 | 208 |
| 468 | Chirality | 1 | 108 | 625 | 208 |
| 471 | Neuropsychology | 5 | 106 | 1589 | 1745 |
| 472 | Geochemistry | 9 | 105 | 1121 | 1644 |
| 472 | Gene expression regulation | 6 | 105 | 579 | 803 |
| 472 | Genetic regulation | 6 | 105 | 658 | 975 |
| 472 | atmosphere | 5 | 105 | 544 | 724 |
| 476 | Biological Systems | 3 | 103 | 524 | 481 |
| 476 | Molecular evolution | 4 | 103 | 1196 | 1468 |
| 476 | Securities | 5 | 103 | 181 | 338 |
| 476 | Allergy | 2 | 103 | 997 | 1015 |
| 476 | stocks | 5 | 103 | 45 | 178 |
| 481 | Climate change | 1 | 102 | 1397 | 1365 |
| 481 | Eutrophication | 1 | 102 | 1263 | 1337 |
| 483 | microwave communication systems | 8 | 101 | 202 | 323 |
| 483 | Microwave devices | 8 | 101 | 270 | 380 |
| 483 | Cell metabolism | 3 | 101 | 598 | 885 |
| 486 | Biomolecules | 4 | 99 | 343 | 529 |
| 486 | Human Resources | 1 | 99 | 838 | 607 |
| 488 | food contamination | 6 | 98 | 629 | 794 |
| 489 | Health Information Management | 1 | 97 | 661 | 680 |
| 489 | Food Microbiology | 4 | 97 | 1005 | 1399 |
| 489 | Food additives | 8 | 97 | 581 | 1216 |
| 492 | Geography | 4 | 96 | 1691 | 1668 |
| 492 | Animal Behavior | 9 | 96 | 1041 | 1689 |
| 492 | optical pattern recognition | 2 | 96 | 181 | 42 |
| 495 | Orthopedics | 5 | 94 | 984 | 1066 |
| 495 | Embedded Systems | 3 | 94 | 201 | 156 |
| 495 | Orthopedic Surgery | 5 | 94 | 523 | 573 |
| 498 | Public Health | 13 | 93 | 2391 | 3863 |
| 499 | Mental Disorders | 6 | 92 | 1720 | 2195 |
| 499 | Optoelectronic devices | 15 | 92 | 289 | 582 |
| 499 | particles | 10 | 92 | 428 | 896 |
| 499 | Mitochondrial DNA | 20 | 92 | 7 | 39 |
| 503 | Algebra | 25 | 91 | 503 | 825 |
| 503 | Nonparametric Statistics | 6 | 91 | 76 | 70 |
| 503 | Plant hormones | 2 | 91 | 396 | 376 |
| 506 | Digital electronics | 12 | 90 | 72 | 136 |
| 506 | Combinatorial chemistry | 2 | 90 | 811 | 828 |
| 508 | Production Engineering | 8 | 89 | 1207 | 1525 |
| 508 | Emerging infectious diseases | 3 | 89 | 297 | 352 |
| 510 | Cellular senescence | 3 | 88 | 271 | 643 |
| 510 | Diet | 2 | 88 | 1983 | 2037 |
| 512 | Medical Oncology | 3 | 87 | 1265 | 1346 |
| 512 | Multiscale Modeling | 8 | 87 | 14 | 27 |
| 512 | Fracture mechanics | 5 | 87 | 1074 | 1222 |
| 512 | Metabolic diseases | 2 | 87 | 1890 | 1820 |
| 512 | Liposomes | 3 | 87 | 585 | 596 |
| 512 | software | 6 | 87 | 681 | 1147 |
| 518 | Ethology | 8 | 86 | 849 | 1508 |
| 518 | Soil ecology | 5 | 86 | 567 | 908 |
| 520 | Sociology | 9 | 85 | 1708 | 2439 |
| 520 | Graph Theory | 19 | 85 | 200 | 423 |
| 522 | Obstetrics | 4 | 84 | 1582 | 1634 |
| 523 | Engineering Mathematics | 33 | 83 | 393 | 1372 |
| 523 | Epigenetics | 10 | 83 | 33 | 194 |
| 523 | Epigenomics | 10 | 83 | 31 | 191 |
| 523 | Navier-Stokes equations | 6 | 83 | 59 | 67 |
| 523 | Catalysts | 12 | 83 | 228 | 642 |
| 528 | Endocrinology | 4 | 82 | 1947 | 2314 |
| 528 | Bacteriology | 8 | 82 | 1031 | 1805 |
| 528 | Animal ecology | 5 | 82 | 867 | 1043 |
| 531 | Graphene | 2 | 80 | 146 | 196 |
| 532 | Biodegradation | 4 | 78 | 614 | 914 |
| 532 | Learning | 3 | 78 | 1167 | 1203 |
| 534 | Paleoclimatology | 4 | 77 | 919 | 1117 |
| 534 | Paleogeography | 4 | 77 | 811 | 987 |
| 534 | Reading | 2 | 77 | 681 | 577 |
| 537 | Hematology | 2 | 76 | 1705 | 1568 |
| 537 | Climatology | 5 | 76 | 1324 | 1726 |
| 537 | drug toxicity | 3 | 76 | 467 | 573 |
| 540 | Environmental Law | 4 | 75 | 900 | 1494 |
| 540 | Forecasting | 7 | 75 | 284 | 530 |
| 540 | drug resistance | 2 | 75 | 885 | 796 |
| 543 | Nanophotonics | 1 | 74 | 558 | 411 |
| 543 | Primary health care | 5 | 74 | 1197 | 1478 |
| 543 | Geriatric Oncology | 1 | 74 | 807 | 597 |
| 543 | medical education | 7 | 74 | 1001 | 1427 |
| 543 | Europe | 5 | 74 | 2136 | 2268 |
| 548 | Marine Biology | 5 | 73 | 1866 | 2318 |
| 549 | Transnational corporations | 2 | 72 | 514 | 459 |
| 549 | Radiobiology | 4 | 72 | 906 | 1084 |
| 551 | Korea | 8 | 71 | 124 | 202 |
| 551 | Iron | 5 | 71 | 217 | 257 |
| 553 | Discrete Mathematics | 13 | 70 | 65 | 127 |
| 553 | Mass Spectrometry | 7 | 70 | 697 | 1033 |
| 553 | graph | 13 | 70 | 65 | 127 |
| 556 | Philippines | 2 | 69 | 152 | 101 |
| 556 | Agriculture | 6 | 69 | 1432 | 2043 |
| 558 | Human-Computer Interaction | 2 | 68 | 1821 | 1591 |
| 558 | Cognitive neuroscience | 6 | 68 | 651 | 1080 |
| 560 | Structural optimization | 2 | 67 | 427 | 418 |
| 560 | Bioenergetics | 1 | 67 | 1234 | 1004 |
| 560 | Marine Meteorology | 4 | 67 | 264 | 351 |
| 560 | marketing | 6 | 67 | 1383 | 1956 |
| 560 | natural gas | 2 | 67 | 442 | 450 |
| 565 | Serology | 7 | 65 | 231 | 571 |
| 565 | Fuzzy Logic | 2 | 65 | 78 | 80 |
| 565 | Fuzzy Sets | 2 | 65 | 78 | 80 |
| 565 | Fuzzy algorithms | 2 | 65 | 78 | 80 |
| 565 | Evolution | 4 | 65 | 1442 | 1840 |
| 570 | Archaeology | 11 | 64 | 657 | 1066 |
| 570 | Bioremediation | 3 | 64 | 866 | 1164 |
| 572 | Homeostasis | 1 | 63 | 589 | 835 |
| 572 | Neuroplasticity | 4 | 63 | 168 | 381 |
| 572 | human development | 4 | 63 | 683 | 970 |
| 572 | Pregnancy | 3 | 63 | 779 | 866 |
| 576 | Health Services Research | 5 | 62 | 1121 | 1483 |
| 576 | plasticity | 2 | 62 | 400 | 537 |
| 576 | biomedicine | 1 | 62 | 875 | 716 |
| 579 | Medical Microbiology | 3 | 61 | 1742 | 2221 |
| 579 | cell physiology | 2 | 61 | 1392 | 1593 |
| 581 | Seismology | 1 | 60 | 744 | 500 |
| 581 | Earthquake prediction | 1 | 60 | 113 | 36 |
| 581 | Earthquakes | 1 | 60 | 617 | 351 |
| 581 | amino acids | 3 | 60 | 556 | 750 |
| 581 | Genes | 5 | 60 | 792 | 1185 |
| 586 | Energy Consumption | 2 | 59 | 487 | 589 |
| 586 | Virulence | 5 | 59 | 729 | 1380 |
| 586 | Memory | 2 | 59 | 1596 | 1612 |
| 586 | Fisheries | 4 | 59 | 1297 | 1499 |
| 590 | Microprocessors | 8 | 58 | 317 | 600 |
| 590 | mass transfer | 3 | 58 | 1633 | 1858 |
| 590 | Cosmochemistry | 5 | 58 | 669 | 1059 |
| 590 | data collection | 5 | 58 | 762 | 1310 |
| 590 | arthritis | 2 | 58 | 988 | 1186 |
| 595 | Food Preservation | 4 | 57 | 704 | 784 |
| 595 | infection | 2 | 57 | 1543 | 1581 |
| 597 | Computer Architecture | 7 | 56 | 310 | 479 |
| 597 | Massage therapy | 31 | 56 | 9 | 10 |
| 599 | Anatomy | 4 | 55 | 1545 | 1792 |
| 599 | Paleontology | 6 | 55 | 909 | 1198 |
| 601 | Quality Control | 3 | 54 | 1716 | 2071 |
| 601 | carcinogens | 2 | 54 | 1031 | 1125 |
| 603 | Embryology | 4 | 53 | 1075 | 1512 |
| 603 | Gerontology | 3 | 53 | 1709 | 1675 |
| 603 | food handling | 2 | 53 | 1120 | 1384 |
| 603 | Growth | 3 | 53 | 933 | 1353 |
| 607 | natural disasters | 3 | 51 | 1308 | 1687 |
| 607 | Phylogeny | 2 | 51 | 1021 | 1244 |
| 609 | bioluminescence | 4 | 50 | 275 | 324 |
| 610 | Pathology | 7 | 49 | 1095 | 1938 |
| 610 | Ichthyology | 4 | 49 | 380 | 432 |
| 610 | Crystallization | 8 | 49 | 254 | 423 |
| 610 | X-ray crystallography | 8 | 49 | 306 | 498 |
| 614 | Psychology | 8 | 48 | 2886 | 4222 |
| 614 | Nuclear Energy | 10 | 48 | 479 | 908 |
| 614 | emergency management | 2 | 48 | 839 | 933 |
| 617 | Telecommunications | 8 | 47 | 356 | 855 |
| 617 | Technology Assessment | 1 | 47 | 852 | 856 |
| 617 | older people | 1 | 47 | 2134 | 1351 |
| 617 | Paleobotany | 1 | 47 | 314 | 245 |
| 617 | Vegetation dynamics | 1 | 47 | 294 | 237 |
| 622 | Nursing | 7 | 46 | 1253 | 1845 |
| 622 | Geodesy | 1 | 46 | 1292 | 921 |
| 622 | Thin Films | 6 | 46 | 300 | 540 |
| 622 | Fish | 3 | 46 | 374 | 385 |
| 626 | Cytogenetics | 2 | 45 | 1320 | 1542 |
| 626 | air quality management | 4 | 45 | 406 | 816 |
| 626 | Combustion | 3 | 45 | 1165 | 1443 |
| 626 | Schizophrenia | 2 | 45 | 969 | 1140 |
| 626 | Flexible electronics | 1 | 45 | 165 | 218 |
| 626 | brain mapping | 1 | 45 | 799 | 853 |
| 632 | Ophthalmology | 4 | 44 | 1269 | 1662 |
| 632 | Developmental Genetics | 2 | 44 | 501 | 717 |
| 632 | Computational Linguistics | 11 | 44 | 145 | 496 |
| 632 | East Asia | 10 | 44 | 228 | 629 |
| 636 | Epidemiology | 6 | 43 | 2226 | 3475 |
| 636 | Horticulture | 4 | 43 | 631 | 895 |
| 636 | Biometrics | 3 | 43 | 927 | 1057 |
| 636 | Diabetes | 3 | 43 | 1583 | 2057 |
| 640 | Conservation Biology | 12 | 42 | 478 | 1427 |
| 640 | Spectroscopy | 10 | 42 | 37 | 64 |
| 640 | Fluorescence | 9 | 42 | 142 | 543 |
| 640 | World Wide Web | 3 | 42 | 405 | 432 |
| 644 | Rock Mechanics | 1 | 41 | 1186 | 1083 |
| 644 | Chemical kinetics | 2 | 41 | 993 | 730 |
| 644 | wood | 2 | 41 | 559 | 532 |
| 647 | Marine Biotechnology | 1 | 40 | 412 | 435 |
| 647 | Combinatorial optimization | 4 | 40 | 439 | 477 |
| 647 | Formal Languages | 5 | 40 | 195 | 242 |
| 647 | Water Microbiology | 2 | 40 | 577 | 746 |
| 647 | Neurons | 1 | 40 | 743 | 1024 |
| 647 | Fouling | 2 | 40 | 288 | 437 |
| 653 | Ecological Genetics | 11 | 39 | 222 | 782 |
| 653 | Electromagnetic compatibility | 4 | 39 | 288 | 427 |
| 653 | Diabetes mellitus | 2 | 39 | 1773 | 2094 |
| 653 | Monomers | 1 | 39 | 159 | 103 |
| 653 | insurance | 2 | 39 | 467 | 471 |
| 653 | Cell surface receptors | 2 | 39 | 152 | 155 |
| 653 | data protection | 6 | 39 | 323 | 730 |
| 660 | Ultrasonics | 3 | 38 | 1199 | 1809 |
| 660 | Entrepreneurship | 1 | 38 | 1609 | 1582 |
| 660 | Emulsions | 5 | 38 | 241 | 438 |
| 660 | mammals | 3 | 38 | 961 | 1143 |
| 660 | optical devices | 2 | 38 | 627 | 654 |
| 665 | Nanoelectronics | 2 | 37 | 918 | 849 |
| 665 | Microbial Genetics | 3 | 37 | 327 | 557 |
| 665 | Speech Perception | 4 | 37 | 275 | 544 |
| 665 | auditory perception | 4 | 37 | 331 | 627 |
| 665 | Sound | 7 | 37 | 657 | 1097 |
| 665 | Oral communication | 4 | 37 | 365 | 586 |
| 665 | Semiconductor industry | 2 | 37 | 683 | 690 |
| 665 | Speech | 4 | 37 | 745 | 1145 |
| 673 | Higher Education | 2 | 36 | 774 | 817 |
| 673 | Infections | 1 | 36 | 1401 | 1460 |
| 673 | Structural biology | 1 | 36 | 157 | 196 |
| 673 | Friction | 1 | 36 | 251 | 284 |
| 673 | Arthropods | 3 | 36 | 220 | 340 |
| 673 | Electromagnetic fields | 9 | 36 | 134 | 298 |
| 679 | micromechanics | 4 | 35 | 499 | 825 |
| 679 | Radio wave propagation | 15 | 35 | 243 | 820 |
| 679 | Ferroelectricity | 3 | 35 | 990 | 996 |
| 679 | Mental illness | 1 | 35 | 2173 | 2155 |
| 683 | Human genetics | 2 | 34 | 1608 | 2306 |
| 683 | Nondestructive testing | 2 | 34 | 829 | 894 |
| 683 | Eastern Europe | 1 | 34 | 1489 | 876 |
| 683 | commerce | 1 | 34 | 2386 | 1984 |
| 687 | Dermatology | 1 | 33 | 1794 | 1601 |
| 687 | Petrology | 2 | 33 | 976 | 1124 |
| 687 | Sleep Disorders | 1 | 33 | 1821 | 1602 |
| 687 | mutation | 2 | 33 | 643 | 916 |
| 687 | microwave antennas | 13 | 33 | 99 | 456 |
| 687 | Laser therapy | 1 | 33 | 733 | 538 |
| 687 | visualization | 5 | 33 | 1054 | 1119 |
| 687 | Respiration | 1 | 33 | 1744 | 1718 |
| 687 | Sleep | 1 | 33 | 1881 | 1623 |
| 696 | Organizational learning | 4 | 32 | 281 | 689 |
| 696 | Regeneration | 2 | 32 | 81 | 132 |
| 696 | Immunochemistry | 6 | 32 | 638 | 1230 |
| 696 | Sensor Networks | 11 | 32 | 58 | 358 |
| 696 | Bibliometrics | 2 | 32 | 181 | 310 |
| 696 | Synchrotron Radiation | 2 | 32 | 445 | 477 |
| 696 | Knowledge management | 4 | 32 | 269 | 623 |
| 696 | personality | 7 | 32 | 930 | 1998 |
| 696 | Antibodies | 2 | 32 | 609 | 727 |
| 696 | Antigens | 2 | 32 | 785 | 913 |
| 706 | Petroleum Engineering | 2 | 31 | 810 | 959 |
| 706 | Landscape Ecology | 3 | 31 | 450 | 833 |
| 706 | consumer behavior | 1 | 31 | 973 | 997 |
| 706 | Fixed Point Theory | 3 | 31 | 279 | 250 |
| 710 | Fluid Mechanics | 3 | 30 | 1416 | 1774 |
| 710 | monoclonal antibodies | 2 | 30 | 323 | 384 |
| 710 | Marine Pollution | 3 | 30 | 1188 | 1914 |
| 710 | Business | 2 | 30 | 2432 | 2829 |
| 710 | Metallography | 3 | 30 | 794 | 1196 |
| 710 | Detergents | 7 | 30 | 21 | 43 |
| 716 | Educational Psychology | 2 | 29 | 1632 | 1848 |
| 716 | Emergency Medicine | 2 | 29 | 1305 | 1391 |
| 716 | Health | 6 | 29 | 1381 | 2645 |
| 716 | Hazardous waste | 3 | 29 | 948 | 1851 |
| 716 | gene transfer | 2 | 29 | 307 | 441 |
| 716 | genetic transformation | 2 | 29 | 307 | 441 |
| 722 | Superconductivity | 6 | 28 | 295 | 587 |
| 722 | sustainability | 3 | 28 | 861 | 1559 |
| 722 | Social policy | 2 | 28 | 1253 | 1366 |
| 722 | Water chemistry | 2 | 28 | 476 | 660 |
| 722 | food industry | 2 | 28 | 1014 | 1241 |
| 722 | planning | 2 | 28 | 980 | 1200 |
| 722 | Economic planning | 2 | 28 | 682 | 971 |
| 729 | Physical Geography | 2 | 27 | 627 | 814 |
| 729 | Computer-Aided Design | 6 | 27 | 812 | 1692 |
| 729 | Functional foods | 6 | 27 | 186 | 768 |
| 729 | Randomized Controlled Trials | 5 | 27 | 690 | 1190 |
| 729 | phytopathogenic bacteria | 1 | 27 | 393 | 516 |
| 729 | Risk | 1 | 27 | 876 | 892 |
| 729 | innovation | 1 | 27 | 1017 | 1144 |
| 729 | research and development | 1 | 27 | 599 | 643 |
| 737 | Database Management | 2 | 26 | 883 | 1079 |
| 737 | Neurosurgery | 2 | 26 | 936 | 1209 |
| 737 | Mineralogy | 2 | 26 | 1430 | 1618 |
| 737 | Product Design | 1 | 26 | 799 | 663 |
| 737 | Integrated Circuits | 4 | 26 | 700 | 817 |
| 737 | Water quality | 1 | 26 | 528 | 514 |
| 737 | Religion and Psychology | 2 | 26 | 718 | 800 |
| 737 | air quality | 1 | 26 | 544 | 548 |
| 737 | Interfaces | 2 | 26 | 449 | 571 |
| 746 | Civil Engineering | 3 | 25 | 1475 | 1657 |
| 746 | Molecular Microbiology | 3 | 25 | 756 | 1346 |
| 746 | preventive medicine | 2 | 25 | 1243 | 1684 |
| 746 | Personality Disorders | 1 | 25 | 434 | 477 |
| 746 | Phytotherapy | 3 | 25 | 649 | 1320 |
| 746 | extraterrestrial environment | 1 | 25 | 945 | 855 |
| 746 | astronomical phenomena | 1 | 25 | 873 | 794 |
| 746 | Bacterial diseases | 3 | 25 | 252 | 604 |
| 754 | Cardiovascular Pharmacology | 1 | 24 | 437 | 504 |
| 754 | Mass Media | 2 | 24 | 1030 | 838 |
| 754 | Hormones | 1 | 24 | 1548 | 1660 |
| 754 | Social behavior | 6 | 24 | 788 | 1674 |
| 754 | biological agents | 9 | 24 | 296 | 592 |
| 754 | Mountains | 1 | 24 | 794 | 630 |
| 754 | India | 4 | 24 | 1268 | 1670 |
| 761 | Medical Technology | 4 | 23 | 1251 | 2293 |
| 761 | Regional Planning | 1 | 23 | 2111 | 2008 |
| 761 | Synthetic biology | 3 | 23 | 295 | 584 |
| 761 | Lightweight concrete | 1 | 23 | 700 | 1022 |
| 761 | Biomass | 2 | 23 | 873 | 1496 |
| 761 | concrete | 1 | 23 | 1323 | 1527 |
| 761 | viral genetics | 1 | 23 | 391 | 581 |
| 768 | Rheumatology | 4 | 22 | 821 | 1344 |
| 768 | technology transfer | 2 | 22 | 348 | 633 |
| 768 | plasma spraying | 2 | 22 | 283 | 426 |
| 768 | Hospitality industry | 1 | 22 | 808 | 937 |
| 768 | Menopause | 1 | 22 | 495 | 556 |
| 773 | Geriatric Nursing | 4 | 21 | 423 | 796 |
| 773 | Biochemical Genetics | 5 | 21 | 289 | 632 |
| 773 | Urban Transportation | 2 | 21 | 168 | 284 |
| 773 | Sonochemistry | 1 | 21 | 1111 | 1521 |
| 773 | Carbohydrates | 2 | 21 | 511 | 772 |
| 773 | Chromosomes | 2 | 21 | 996 | 1413 |
| 773 | Safety management | 2 | 21 | 806 | 1046 |
| 780 | Nuclear Medicine | 1 | 20 | 1132 | 1097 |
| 780 | Plant Genetics | 2 | 20 | 761 | 1208 |
| 780 | Food Safety | 1 | 20 | 591 | 629 |
| 780 | Lipid metabolism | 3 | 20 | 385 | 851 |
| 780 | Molecular Imaging | 1 | 20 | 743 | 860 |
| 780 | Calorimetry | 2 | 20 | 1497 | 1812 |
| 780 | Lipid | 3 | 20 | 387 | 852 |
| 780 | Planets | 1 | 20 | 1760 | 2029 |
| 780 | Textile industry | 2 | 20 | 614 | 673 |
| 780 | Thermal analysis | 2 | 20 | 1497 | 1812 |
| 790 | Language Disorders | 1 | 19 | 1171 | 1178 |
| 790 | Economic Development | 2 | 19 | 1783 | 2337 |
| 790 | Psycholinguistics | 1 | 19 | 1322 | 1396 |
| 790 | Agricultural Biotechnology | 2 | 19 | 416 | 412 |
| 790 | Communication and Culture | 1 | 19 | 520 | 461 |
| 790 | Quantum Communication | 2 | 19 | 220 | 400 |
| 790 | Waste management | 3 | 19 | 1396 | 2164 |
| 790 | Water Purification | 3 | 19 | 1132 | 1818 |
| 790 | Genetic testing | 1 | 19 | 590 | 563 |
| 790 | Water quality management | 3 | 19 | 1803 | 2645 |
| 790 | Writing | 1 | 19 | 510 | 588 |
| 790 | Social interaction | 1 | 19 | 616 | 695 |
| 790 | antibiotics | 1 | 19 | 430 | 557 |
| 803 | Computational Chemistry | 1 | 18 | 1046 | 1139 |
| 803 | Neurotoxicology | 2 | 18 | 698 | 1283 |
| 803 | Educational Technology | 3 | 18 | 1655 | 2706 |
| 803 | Apoptosis | 1 | 18 | 516 | 734 |
| 803 | neurotoxins | 1 | 18 | 516 | 734 |
| 803 | Neurotoxic agents | 1 | 18 | 516 | 734 |
| 803 | bioclimatology | 1 | 18 | 1589 | 1742 |
| 803 | Enteral nutrition | 2 | 18 | 848 | 1347 |
| 803 | Parenteral nutrition | 2 | 18 | 969 | 1470 |
| 803 | Industrial Policy | 1 | 18 | 820 | 883 |
| 803 | Cardiovascular diseases | 3 | 18 | 1293 | 1883 |
| 803 | phenomics | 1 | 18 | 66 | 106 |
| 803 | Climate | 1 | 18 | 1028 | 1256 |
| 803 | weather | 1 | 18 | 1000 | 1230 |
| 803 | Breeding | 2 | 18 | 1293 | 1774 |
| 803 | Nerve regeneration | 1 | 18 | 516 | 734 |
| 819 | Audiology | 1 | 17 | 1006 | 1038 |
| 819 | Emergency Medical Services | 1 | 17 | 1040 | 1104 |
| 819 | Health Policy | 3 | 17 | 1906 | 2914 |
| 819 | Quantum Computing | 1 | 17 | 284 | 352 |
| 819 | Animal breeding | 1 | 17 | 1107 | 1194 |
| 819 | Expert Systems | 2 | 17 | 301 | 507 |
| 819 | Microcirculation | 1 | 17 | 718 | 869 |
| 819 | Hematopoietic stem cell transplantation | 1 | 17 | 632 | 831 |
| 819 | Mutagenesis | 1 | 17 | 810 | 938 |
| 819 | Computational Fluid Dynamics | 2 | 17 | 776 | 1139 |
| 819 | Antioxidants | 1 | 17 | 1061 | 1388 |
| 819 | calcification | 1 | 17 | 708 | 862 |
| 819 | Family | 1 | 17 | 1488 | 1580 |
| 819 | clay | 1 | 17 | 1298 | 1642 |
| 819 | families | 1 | 17 | 1367 | 1321 |
| 819 | economic conditions | 1 | 17 | 818 | 842 |
| 819 | Africa | 1 | 17 | 2370 | 2001 |
| 819 | Transplantation | 1 | 17 | 1098 | 1258 |
| 819 | Reproduction | 1 | 17 | 2500 | 2652 |
| 819 | Blood vessels | 1 | 17 | 624 | 759 |
| 819 | mutagens | 1 | 17 | 986 | 1264 |
| 819 | vitamin C | 1 | 17 | 706 | 947 |
| 819 | Ultrasound | 2 | 17 | 825 | 1261 |
| 819 | vitamin E | 1 | 17 | 706 | 947 |
| 843 | Developmental Psychology | 4 | 16 | 848 | 1631 |
| 843 | Popular culture | 2 | 16 | 695 | 614 |
| 843 | Liquid Crystals | 3 | 16 | 892 | 1064 |
| 846 | Marine Geology | 2 | 15 | 720 | 1032 |
| 846 | Financial Engineering | 1 | 15 | 366 | 549 |
| 846 | Algorithms | 1 | 15 | 1219 | 1173 |
| 846 | Number Theory | 4 | 15 | 723 | 1011 |
| 846 | Nuclear Chemistry | 6 | 15 | 749 | 1511 |
| 846 | Radiochemistry | 6 | 15 | 665 | 1398 |
| 846 | Serbia | 2 | 15 | 144 | 165 |
| 846 | land degradation | 3 | 15 | 492 | 1161 |
| 846 | radioactive waste | 2 | 15 | 1002 | 1939 |
| 846 | Granular materials | 3 | 15 | 618 | 1353 |
| 846 | industrial waste | 2 | 15 | 1048 | 1947 |
| 846 | degradation | 3 | 15 | 492 | 1161 |
| 858 | Industrial Design | 1 | 14 | 483 | 650 |
| 858 | Biogeography | 1 | 14 | 1381 | 1693 |
| 858 | Soil biology | 1 | 14 | 1248 | 1625 |
| 858 | Calculus of Variations | 3 | 14 | 555 | 761 |
| 858 | Histocompatibility Testing | 1 | 14 | 709 | 844 |
| 858 | nuclear power | 2 | 14 | 559 | 671 |
| 858 | Central Asia | 2 | 14 | 227 | 536 |
| 858 | Industry | 1 | 14 | 431 | 786 |
| 858 | Navigation | 2 | 14 | 358 | 469 |
| 858 | environmental issues | 2 | 14 | 540 | 1063 |
| 868 | Polymer Engineering | 3 | 13 | 92 | 326 |
| 868 | Pharmacogenetics | 1 | 13 | 1186 | 1475 |
| 868 | Human Geography | 1 | 13 | 1667 | 1737 |
| 868 | Plant Morphology | 1 | 13 | 1004 | 1175 |
| 868 | Enzyme inhibitors | 1 | 13 | 759 | 1033 |
| 868 | Genetic databases | 4 | 13 | 7 | 120 |
| 868 | Coatings | 1 | 13 | 97 | 68 |
| 868 | thinking | 1 | 13 | 655 | 827 |
| 868 | North America | 2 | 13 | 995 | 1431 |
| 868 | Paint | 1 | 13 | 57 | 66 |
| 868 | Fibers | 2 | 13 | 134 | 176 |
| 868 | Creativity | 1 | 13 | 679 | 908 |
| 868 | venom | 3 | 13 | 723 | 1497 |
| 868 | Toxins | 3 | 13 | 828 | 1638 |
| 882 | Structural Engineering | 2 | 12 | 1720 | 2266 |
| 882 | Geometry | 6 | 12 | 872 | 1414 |
| 882 | Software Maintenance | 3 | 12 | 167 | 428 |
| 882 | Actuarial Science | 1 | 12 | 438 | 519 |
| 882 | Clinical Immunology | 1 | 12 | 1218 | 1520 |
| 882 | Immunopathology | 1 | 12 | 1360 | 1665 |
| 882 | Cognitive Radio Networks | 2 | 12 | 269 | 488 |
| 882 | Fungi | 1 | 12 | 1425 | 1747 |
| 890 | Chronobiology | 2 | 11 | 625 | 1040 |
| 890 | Clinical Biochemistry | 1 | 11 | 1524 | 1769 |
| 890 | Educational Sociology | 1 | 11 | 711 | 821 |
| 890 | Circadian rhythms | 2 | 11 | 470 | 895 |
| 890 | biological clocks | 2 | 11 | 625 | 1040 |
| 890 | hazard mitigation | 2 | 11 | 1206 | 2080 |
| 890 | Solutions | 2 | 11 | 523 | 802 |
| 890 | circadian rhythm | 2 | 11 | 625 | 1040 |
| 890 | radar | 1 | 11 | 343 | 412 |
| 890 | biological rhythms | 2 | 11 | 600 | 1017 |
| 890 | Sonar | 1 | 11 | 286 | 364 |
| 890 | synthesis | 2 | 11 | 1338 | 1758 |
| 890 | Radio frequency | 1 | 11 | 691 | 924 |
| 903 | Speech-Language Pathology | 1 | 10 | 530 | 689 |
| 903 | Linguistics | 1 | 10 | 1895 | 1848 |
| 903 | Plant Biotechnology | 2 | 10 | 915 | 1529 |
| 903 | Risk assessment | 1 | 10 | 1167 | 1460 |
| 903 | ecological risk assessment | 1 | 10 | 530 | 794 |
| 903 | pain management | 1 | 10 | 882 | 1080 |
| 903 | stability | 2 | 10 | 128 | 185 |
| 903 | automatic speech recognition | 1 | 10 | 324 | 474 |
| 903 | Health Risk Assessment | 1 | 10 | 903 | 1160 |
| 903 | immunoassay | 3 | 10 | 182 | 547 |
| 903 | Steroids | 2 | 10 | 1002 | 1644 |
| 903 | Vegetation | 2 | 10 | 132 | 298 |
| 903 | Nanotubes | 2 | 10 | 246 | 506 |
| 903 | pain | 1 | 10 | 1617 | 1930 |
| 903 | sexual behavior | 1 | 10 | 1076 | 1393 |
| 918 | Surgery | 1 | 9 | 1707 | 1960 |
| 918 | Crime prevention | 1 | 9 | 458 | 540 |
| 918 | Clinical Pharmacology | 2 | 9 | 1293 | 1987 |
| 918 | Wildlife conservation | 1 | 9 | 1537 | 1979 |
| 918 | Research Design | 1 | 9 | 1621 | 2072 |
| 918 | Cross-Cultural Studies | 1 | 9 | 1284 | 1604 |
| 918 | Bioacoustics | 1 | 9 | 194 | 297 |
| 918 | Supramolecular chemistry | 1 | 9 | 502 | 624 |
| 918 | Electrophysiology | 1 | 9 | 1235 | 1444 |
| 918 | cross-cultural comparison | 1 | 9 | 935 | 1197 |
| 918 | Scandinavia | 1 | 9 | 974 | 1191 |
| 918 | High performance computing | 3 | 9 | 47 | 185 |
| 918 | Imagination | 2 | 9 | 117 | 219 |
| 918 | Animal | 1 | 9 | 333 | 536 |
| 918 | Consciousness | 2 | 9 | 591 | 950 |
| 933 | Petroleum Geology | 1 | 8 | 750 | 981 |
| 933 | Paleobiology | 2 | 8 | 467 | 719 |
| 933 | health behavior | 1 | 8 | 1339 | 1781 |
| 933 | Islamic Architecture | 1 | 8 | 219 | 335 |
| 933 | Photogrammetry | 2 | 8 | 1062 | 1174 |
| 933 | terrorism | 1 | 8 | 510 | 627 |
| 933 | Medical Ethics | 1 | 8 | 1626 | 1880 |
| 933 | Noise | 2 | 8 | 186 | 400 |
| 933 | Globalization | 1 | 8 | 1045 | 1386 |
| 933 | Hearing Aids | 1 | 8 | 339 | 424 |
| 933 | global environmental change | 1 | 8 | 1242 | 1836 |
| 933 | Malaria | 1 | 8 | 971 | 1339 |
| 933 | Matroids | 2 | 8 | 306 | 519 |
| 933 | security measures | 1 | 8 | 158 | 210 |
| 933 | Middle East | 1 | 8 | 1656 | 1751 |
| 933 | Hearing | 1 | 8 | 944 | 1155 |
| 933 | Cheminformatics | 1 | 8 | 577 | 867 |
| 933 | Refractory materials | 2 | 8 | 178 | 262 |
| 933 | national security | 1 | 8 | 681 | 609 |
| 933 | traffic safety | 1 | 8 | 540 | 789 |
| 953 | Nanomedicine | 1 | 7 | 495 | 920 |
| 953 | Proteomics | 1 | 7 | 1419 | 1922 |
| 953 | Diagnosis | 2 | 7 | 464 | 921 |
| 953 | Metallic Glasses | 1 | 7 | 737 | 998 |
| 953 | Behavioral research | 1 | 7 | 1167 | 1617 |
| 953 | Marine Geophysics | 1 | 7 | 499 | 682 |
| 953 | Travel | 1 | 7 | 1309 | 1743 |
| 953 | Marine mineral resources | 1 | 7 | 322 | 451 |
| 953 | Holistic Health | 2 | 7 | 602 | 1181 |
| 953 | histological techniques | 1 | 7 | 868 | 1219 |
| 953 | toxicity testing | 1 | 7 | 1064 | 1585 |
| 953 | Microorganisms | 1 | 7 | 1454 | 1969 |
| 953 | Sun | 1 | 7 | 492 | 629 |
| 953 | plasma | 2 | 7 | 141 | 281 |
| 953 | ecotourism | 1 | 7 | 466 | 851 |
| 953 | electrocatalysis | 2 | 7 | 132 | 443 |
| 953 | Seabed | 1 | 7 | 322 | 451 |
| 953 | freshwater biology | 3 | 7 | 907 | 1838 |
| 953 | Solar System | 1 | 7 | 989 | 1228 |
| 972 | Law | 1 | 6 | 1818 | 1678 |
| 972 | Freshwater Ecology | 2 | 6 | 389 | 819 |
| 972 | Psychopharmacology | 2 | 6 | 1379 | 2247 |
| 972 | Multivariate Analysis | 3 | 6 | 572 | 1098 |
| 972 | Biotransformation | 2 | 6 | 156 | 496 |
| 972 | Antibacterial agents | 1 | 6 | 960 | 1444 |
| 972 | locomotion | 1 | 6 | 972 | 1324 |
| 972 | posture | 1 | 6 | 972 | 1324 |
| 972 | Financial Institutions | 1 | 6 | 739 | 1008 |
| 972 | Ultrasonic Imaging | 1 | 6 | 837 | 1191 |
| 972 | body temperature | 1 | 6 | 988 | 1455 |
| 972 | gait | 1 | 6 | 972 | 1324 |
| 972 | walking | 1 | 6 | 972 | 1324 |
| 985 | Urban Economics | 1 | 5 | 591 | 836 |
| 985 | Genetic Toxicology | 1 | 5 | 752 | 1188 |
| 985 | Thermodynamics | 4 | 5 | 1106 | 2179 |
| 985 | Chemical Ecology | 1 | 5 | 808 | 1199 |
| 985 | Econometrics | 2 | 5 | 1563 | 2232 |
| 985 | Plate Tectonics | 1 | 5 | 487 | 684 |
| 985 | nuclear magnetic resonance | 2 | 5 | 1035 | 1518 |
| 985 | Autoantibodies | 1 | 5 | 735 | 1093 |
| 985 | Second Language Acquisition | 1 | 5 | 377 | 673 |
| 985 | Autoimmunity | 1 | 5 | 899 | 1313 |
| 985 | Plant breeding | 2 | 5 | 867 | 1656 |
| 985 | nuclear magnetic resonance spectroscopy | 2 | 5 | 835 | 1305 |
| 985 | Autoimmune diseases | 1 | 5 | 811 | 1215 |
| 985 | health services | 1 | 5 | 1588 | 2185 |
| 999 | Landscape Architecture | 1 | 4 | 339 | 437 |
| 999 | Applied Linguistics | 1 | 4 | 1030 | 1257 |