| 1 | Biology | 408 | 40.3K | 811 | 574 |
| 2 | Science | 221 | 36.3K | 1405 | 648 |
| 3 | Physics | 653 | 33.0K | 743 | 817 |
| 4 | Cytology | 401 | 32.0K | 278 | 231 |
| 5 | Molecular Biology | 449 | 30.9K | 620 | 432 |
| 6 | Biochemistry | 686 | 30.2K | 651 | 500 |
| 7 | Chemistry | 717 | 28.8K | 645 | 619 |
| 8 | Cell Biology | 197 | 26.0K | 460 | 273 |
| 9 | Microbiology | 488 | 25.3K | 395 | 367 |
| 10 | Natural history | 36 | 22.5K | 1324 | 535 |
| 11 | plant molecular biology | 313 | 22.0K | 25 | 30 |
| 12 | Plant cells | 181 | 21.4K | 56 | 46 |
| 13 | Botany | 230 | 14.8K | 412 | 235 |
| 14 | Plants | 166 | 13.6K | 111 | 59 |
| 15 | Plant physiology | 231 | 13.0K | 62 | 62 |
| 16 | Plant genetic engineering | 316 | 10.8K | 6 | 9 |
| 17 | Developmental Biology | 136 | 10.6K | 217 | 171 |
| 18 | Biotechnology | 331 | 9.2K | 362 | 575 |
| 19 | Plant Genetics | 171 | 9.1K | 11 | 12 |
| 20 | Virology | 17 | 8.0K | 1725 | 542 |
| 21 | Embryology | 93 | 7.9K | 214 | 135 |
| 22 | Growth | 82 | 7.5K | 163 | 142 |
| 23 | Genes | 134 | 7.4K | 21 | 6 |
| 24 | Cell differentiation | 79 | 7.2K | 277 | 206 |
| 25 | Anatomy | 59 | 6.7K | 381 | 142 |
| 26 | Bioengineering | 231 | 5.6K | 262 | 563 |
| 27 | Neurology | 71 | 5.3K | 1552 | 1077 |
| 28 | Signal Transduction | 121 | 5.2K | 36 | 44 |
| 29 | Polymers | 199 | 5.1K | 596 | 604 |
| 30 | Technology | 417 | 4.8K | 93 | 284 |
| 31 | Cytogenetics | 84 | 4.7K | 168 | 214 |
| 32 | Molecular Genetics | 93 | 4.7K | 185 | 184 |
| 33 | polymerization | 171 | 4.7K | 519 | 508 |
| 34 | Histology | 90 | 4.5K | 184 | 130 |
| 35 | Biophysics | 294 | 4.4K | 567 | 868 |
| 36 | Biomechanics | 81 | 4.1K | 124 | 101 |
| 37 | Immunity | 14 | 4.1K | 1128 | 483 |
| 38 | Gene expression | 79 | 4.1K | 13 | 11 |
| 38 | Cell division | 79 | 4.1K | 13 | 11 |
| 40 | Immunology | 27 | 4.1K | 1768 | 840 |
| 41 | Genetics | 85 | 3.9K | 725 | 803 |
| 42 | genome | 40 | 3.8K | 331 | 261 |
| 43 | Medicine | 121 | 3.7K | 2267 | 2344 |
| 44 | Biomedical Engineering | 154 | 3.7K | 511 | 603 |
| 45 | Genomics | 63 | 3.7K | 626 | 343 |
| 46 | Molecular Microbiology | 34 | 3.6K | 216 | 129 |
| 47 | Japan | 282 | 3.3K | 84 | 79 |
| 48 | Materials | 216 | 3.0K | 854 | 1389 |
| 49 | Immunotherapy | 6 | 2.9K | 1694 | 317 |
| 50 | DNS | 27 | 2.8K | 34 | 3 |
| 51 | Research | 94 | 2.7K | 2092 | 1978 |
| 52 | Immune system | 2 | 2.5K | 1612 | 334 |
| 53 | Catalysis | 92 | 2.3K | 848 | 1052 |
| 54 | Nanotechnology | 76 | 2.2K | 1272 | 1378 |
| 55 | Organic Chemistry | 119 | 2.1K | 423 | 637 |
| 56 | Solid State Physics | 115 | 2.1K | 900 | 1012 |
| 57 | Industrial Microbiology | 45 | 1.9K | 307 | 282 |
| 58 | Bioorganic chemistry | 51 | 1.9K | 696 | 582 |
| 59 | Optical materials | 100 | 1.9K | 322 | 621 |
| 60 | Pharmacology | 29 | 1.9K | 2405 | 1443 |
| 61 | Mass Spectrometry | 6 | 1.9K | 1071 | 135 |
| 62 | Plant Ecology | 27 | 1.8K | 583 | 362 |
| 63 | Genetic engineering | 40 | 1.7K | 474 | 449 |
| 64 | Medical Laboratory Science | 43 | 1.7K | 400 | 356 |
| 65 | Biocompatible Materials | 56 | 1.7K | 1056 | 1273 |
| 66 | Pharmaceutical Chemistry | 46 | 1.7K | 1198 | 1058 |
| 67 | Agricultural Chemistry | 91 | 1.6K | 279 | 440 |
| 68 | Computational Biology | 38 | 1.6K | 708 | 622 |
| 69 | Ecology | 37 | 1.5K | 2406 | 2256 |
| 70 | Plant Biotechnology | 141 | 1.5K | 15 | 80 |
| 71 | nucleic acids | 34 | 1.5K | 567 | 669 |
| 72 | Biochemical Engineering | 23 | 1.5K | 1399 | 1303 |
| 73 | Computer Vision | 50 | 1.4K | 139 | 268 |
| 74 | gene mapping | 25 | 1.4K | 714 | 551 |
| 75 | Condensed Matter | 73 | 1.4K | 1075 | 1167 |
| 76 | Robotics | 88 | 1.4K | 114 | 223 |
| 77 | Bioinformatics | 31 | 1.3K | 580 | 535 |
| 78 | Image Processing | 43 | 1.3K | 389 | 395 |
| 79 | Genetic regulation | 15 | 1.3K | 518 | 372 |
| 80 | Microbial Ecology | 36 | 1.3K | 685 | 812 |
| 81 | Neurons | 9 | 1.3K | 430 | 495 |
| 82 | Environment | 34 | 1.3K | 1791 | 2228 |
| 83 | Nervous system | 38 | 1.2K | 743 | 889 |
| 84 | Colloids | 67 | 1.2K | 928 | 1329 |
| 85 | Physical organic chemistry | 29 | 1.2K | 339 | 160 |
| 86 | proteins | 41 | 1.2K | 535 | 528 |
| 87 | Electronics | 179 | 1.2K | 362 | 783 |
| 88 | Surface Chemistry | 90 | 1.2K | 746 | 1301 |
| 89 | Information Technology | 163 | 1.1K | 44 | 326 |
| 90 | cell physiology | 16 | 1.1K | 742 | 583 |
| 91 | Software Engineering | 40 | 1.1K | 129 | 88 |
| 92 | Molecular cloning | 27 | 1.0K | 370 | 261 |
| 92 | Genetic recombination | 27 | 1.0K | 355 | 258 |
| 92 | Recombinant DNA | 27 | 1.0K | 416 | 292 |
| 95 | Solar Energy | 17 | 1.0K | 661 | 383 |
| 96 | Chromosome mapping | 22 | 1.0K | 690 | 553 |
| 97 | Materials Science | 72 | 1.0K | 1223 | 1776 |
| 98 | solar cells | 16 | 1.0K | 293 | 190 |
| 99 | solar power | 14 | 989 | 279 | 163 |
| 100 | Nanostructured Materials | 46 | 982 | 1011 | 1156 |
| 101 | Organometallic compounds | 23 | 970 | 426 | 276 |
| 102 | Neurophysiology | 18 | 931 | 1535 | 1313 |
| 103 | Human genetics | 4 | 882 | 2451 | 2045 |
| 104 | Neurochemistry | 22 | 879 | 1084 | 995 |
| 105 | Neural circuitry | 37 | 847 | 370 | 505 |
| 106 | Host-parasite interactions | 6 | 838 | 1064 | 669 |
| 107 | Molecular structure | 14 | 837 | 1350 | 804 |
| 108 | Luminescence | 64 | 829 | 72 | 134 |
| 109 | Analytical Chemistry | 46 | 810 | 1525 | 1843 |
| 110 | miniaturization | 23 | 801 | 711 | 849 |
| 111 | Radiation | 56 | 798 | 368 | 495 |
| 112 | Bacteriology | 24 | 792 | 761 | 917 |
| 113 | Developmental Genetics | 8 | 769 | 399 | 357 |
| 114 | Speech Perception | 12 | 760 | 53 | 33 |
| 114 | auditory perception | 12 | 760 | 76 | 45 |
| 116 | mycoses | 5 | 745 | 748 | 369 |
| 116 | Bacterial infections | 5 | 745 | 804 | 383 |
| 118 | protein | 25 | 743 | 382 | 409 |
| 119 | Photochemistry | 39 | 741 | 337 | 478 |
| 120 | Allergy | 2 | 740 | 1817 | 796 |
| 121 | Optics | 69 | 706 | 1446 | 1574 |
| 122 | Metabolic diseases | 3 | 704 | 3051 | 1367 |
| 123 | Solid State Chemistry | 34 | 703 | 860 | 806 |
| 124 | Homeostasis | 1 | 702 | 942 | 504 |
| 124 | Cell metabolism | 1 | 702 | 1458 | 516 |
| 126 | Gene expression regulation | 8 | 694 | 693 | 413 |
| 127 | Computer Graphics | 44 | 677 | 308 | 479 |
| 128 | Chemical industry | 71 | 668 | 137 | 216 |
| 129 | Neurobiology | 18 | 646 | 896 | 1005 |
| 130 | Communication | 12 | 629 | 1126 | 540 |
| 131 | Oral communication | 11 | 624 | 135 | 54 |
| 131 | Speech | 11 | 624 | 452 | 293 |
| 133 | Stem cells | 8 | 618 | 1265 | 709 |
| 133 | cloning | 7 | 618 | 498 | 370 |
| 135 | Artificial Intelligence | 69 | 611 | 713 | 1353 |
| 136 | Photobiology | 29 | 594 | 244 | 346 |
| 136 | actuators | 19 | 594 | 950 | 963 |
| 136 | transducers | 19 | 594 | 950 | 963 |
| 139 | Physiology | 12 | 585 | 2853 | 2146 |
| 140 | Radiology | 49 | 584 | 273 | 398 |
| 141 | nanoscience | 16 | 581 | 1544 | 1489 |
| 141 | enzymes | 26 | 581 | 449 | 597 |
| 143 | Clinical Chemistry | 11 | 579 | 2026 | 1475 |
| 144 | Molecular evolution | 7 | 577 | 1160 | 697 |
| 145 | cosmic rays | 48 | 567 | 46 | 72 |
| 146 | United Kingdom | 8 | 548 | 1193 | 794 |
| 147 | Oncogenes | 12 | 522 | 723 | 883 |
| 148 | Bioinorganic chemistry | 19 | 497 | 603 | 566 |
| 149 | viral genetics | 3 | 496 | 414 | 356 |
| 150 | Metabolism | 14 | 460 | 1745 | 1885 |
| 150 | Proteome | 14 | 460 | 595 | 658 |
| 152 | Magnetic Materials | 30 | 452 | 405 | 615 |
| 153 | Statistical physics | 23 | 451 | 1878 | 1768 |
| 154 | Yeast | 27 | 448 | 54 | 163 |
| 155 | Combinatorial chemistry | 12 | 435 | 394 | 423 |
| 156 | Cancer | 12 | 434 | 2509 | 2402 |
| 157 | Telecommunication | 116 | 433 | 126 | 607 |
| 158 | Chemical Engineering | 53 | 429 | 1430 | 2698 |
| 159 | Medical Physics | 9 | 420 | 1180 | 806 |
| 160 | Brain | 21 | 419 | 1299 | 1620 |
| 161 | Physical Chemistry | 19 | 412 | 1096 | 1231 |
| 162 | Diagnostic Imaging | 14 | 411 | 1131 | 974 |
| 162 | cell interaction | 8 | 411 | 793 | 548 |
| 164 | Evolution | 7 | 410 | 1519 | 1132 |
| 165 | Plant diseases | 13 | 396 | 1163 | 871 |
| 166 | Engineering | 8 | 389 | 3706 | 1698 |
| 167 | Microelectronics | 13 | 387 | 1082 | 1103 |
| 168 | plant communities | 7 | 370 | 818 | 718 |
| 169 | Immunopharmacology | 4 | 358 | 1080 | 387 |
| 169 | cytokines | 4 | 358 | 1409 | 681 |
| 171 | Microbial Genetics | 6 | 349 | 239 | 170 |
| 171 | phytopathogenic bacteria | 6 | 349 | 179 | 163 |
| 173 | Environmental Chemistry | 2 | 346 | 3232 | 1437 |
| 174 | Electrical Engineering | 51 | 344 | 958 | 1112 |
| 175 | DNA polymerases | 1 | 336 | 955 | 519 |
| 176 | Psychophysiology | 5 | 333 | 2740 | 1956 |
| 177 | Pharmaceutical Technology | 7 | 332 | 1202 | 821 |
| 178 | catalytic activity | 6 | 330 | 508 | 345 |
| 179 | Chemical Ecology | 1 | 321 | 1024 | 290 |
| 179 | pheromones | 1 | 321 | 957 | 268 |
| 181 | Transgenic plants | 10 | 320 | 195 | 220 |
| 182 | Photonics | 19 | 313 | 779 | 1204 |
| 183 | Medical genetics | 5 | 312 | 2819 | 2407 |
| 184 | Cerebral cortex | 6 | 308 | 779 | 682 |
| 185 | Plant tissue culture | 18 | 303 | 200 | 315 |
| 185 | Plant cell culture | 17 | 303 | 175 | 311 |
| 187 | Ceramics | 20 | 300 | 638 | 764 |
| 188 | internet | 3 | 299 | 1467 | 436 |
| 189 | Spectrum analysis | 26 | 292 | 2119 | 2851 |
| 190 | transgenic organisms | 7 | 286 | 114 | 91 |
| 190 | transgenic animals | 7 | 286 | 104 | 86 |
| 192 | Signal Processing | 9 | 284 | 1334 | 878 |
| 193 | Organometallic chemistry | 12 | 275 | 1134 | 865 |
| 194 | Endocrinology | 11 | 264 | 2222 | 2607 |
| 195 | Nanoparticles | 9 | 260 | 1298 | 1234 |
| 196 | Computer Science | 54 | 258 | 246 | 820 |
| 197 | Systems Biology | 15 | 254 | 744 | 804 |
| 198 | Crystal growth | 14 | 252 | 472 | 579 |
| 199 | Pediatric Neurology | 3 | 251 | 1310 | 1189 |
| 200 | Oxidation-reduction | 5 | 247 | 727 | 785 |
| 201 | Energy Policy | 1 | 242 | 4730 | 2229 |
| 202 | Electrochemistry | 62 | 240 | 1138 | 2507 |
| 203 | Antioxidants | 4 | 239 | 779 | 740 |
| 203 | Ceramic materials | 11 | 239 | 745 | 702 |
| 205 | Fermentation | 5 | 235 | 223 | 96 |
| 205 | computer networks | 26 | 235 | 786 | 1391 |
| 207 | viruses | 3 | 229 | 1850 | 1418 |
| 208 | Nonlinear Dynamics | 11 | 227 | 1461 | 1458 |
| 209 | biological evolution | 3 | 225 | 2562 | 1822 |
| 209 | Breeding | 14 | 225 | 611 | 821 |
| 211 | food technology | 3 | 223 | 3100 | 1851 |
| 212 | Crystallography | 47 | 222 | 364 | 664 |
| 213 | X-ray crystallography | 36 | 213 | 88 | 267 |
| 214 | Psychiatry | 5 | 205 | 4468 | 3532 |
| 214 | biopolymers | 7 | 205 | 926 | 859 |
| 216 | Reproduction | 12 | 204 | 1481 | 1717 |
| 217 | Composite Materials | 7 | 201 | 2227 | 2261 |
| 218 | Diabetes mellitus | 3 | 199 | 2705 | 2133 |
| 218 | Biological Systems | 4 | 199 | 734 | 344 |
| 218 | Diabetes | 3 | 199 | 2810 | 2193 |
| 221 | Nuclear Physics | 9 | 195 | 3322 | 2911 |
| 222 | Microbial Biotechnology | 6 | 194 | 758 | 615 |
| 222 | Supramolecular chemistry | 9 | 194 | 87 | 37 |
| 224 | Behavior | 4 | 191 | 3452 | 2920 |
| 225 | Developmental Neurobiology | 5 | 188 | 463 | 287 |
| 226 | Neuropsychology | 3 | 187 | 2795 | 1800 |
| 227 | Meteorology | 3 | 185 | 2852 | 2176 |
| 228 | Ophthalmology | 5 | 184 | 1741 | 1418 |
| 229 | Chemical analysis | 4 | 183 | 1288 | 884 |
| 229 | biological factors | 7 | 183 | 1540 | 1409 |
| 231 | Telecommunication Systems | 16 | 181 | 637 | 881 |
| 232 | Semiconductors | 15 | 180 | 1066 | 1266 |
| 233 | Hematology | 4 | 178 | 3591 | 2634 |
| 234 | Wireless Communication Systems | 18 | 173 | 901 | 1150 |
| 235 | software | 12 | 171 | 352 | 750 |
| 236 | Psychology | 7 | 170 | 4368 | 3831 |
| 237 | Human-Computer Interaction | 16 | 161 | 537 | 1014 |
| 237 | Sound | 9 | 161 | 469 | 301 |
| 239 | Plant breeding | 14 | 158 | 352 | 587 |
| 240 | Bones | 4 | 152 | 1027 | 930 |
| 241 | Light | 11 | 150 | 562 | 1213 |
| 242 | Educational Technology | 2 | 148 | 2252 | 975 |
| 243 | Analytical Biochemistry | 8 | 147 | 1286 | 1477 |
| 244 | Zeolites | 2 | 146 | 1336 | 913 |
| 245 | Cell death | 5 | 144 | 1195 | 1422 |
| 246 | Morphology | 1 | 142 | 1647 | 532 |
| 247 | Industrial Engineering | 5 | 141 | 1821 | 1546 |
| 248 | antibiotics | 5 | 140 | 325 | 295 |
| 249 | Medical Microbiology | 2 | 138 | 3555 | 2705 |
| 250 | Control Theory | 13 | 136 | 963 | 1149 |
| 250 | language | 1 | 136 | 1486 | 611 |
| 252 | Food Microbiology | 4 | 134 | 1298 | 1444 |
| 253 | Toxicology | 14 | 133 | 2988 | 4796 |
| 254 | Synchrotron Radiation | 4 | 132 | 412 | 257 |
| 255 | Computer-Aided Design | 14 | 131 | 524 | 929 |
| 256 | Pharmacy | 8 | 129 | 1607 | 2003 |
| 257 | Genetic therapy | 3 | 126 | 1565 | 1447 |
| 258 | Biomolecules | 2 | 125 | 695 | 533 |
| 258 | Informatics | 12 | 125 | 398 | 744 |
| 260 | Automation | 7 | 122 | 1487 | 1566 |
| 260 | Functional Genomics | 4 | 122 | 253 | 371 |
| 260 | Autoimmune diseases | 3 | 122 | 816 | 748 |
| 263 | Surface properties | 11 | 121 | 543 | 1368 |
| 263 | Detectors | 13 | 121 | 332 | 351 |
| 265 | Computational Linguistics | 16 | 118 | 86 | 202 |
| 266 | Psychopharmacology | 1 | 117 | 3027 | 1817 |
| 267 | Biosensors | 8 | 113 | 881 | 1779 |
| 267 | Glass | 3 | 113 | 1410 | 1145 |
| 267 | pottery | 3 | 113 | 1358 | 1126 |
| 270 | Nanostructures | 15 | 108 | 1084 | 2311 |
| 271 | DNA repair | 3 | 107 | 347 | 324 |
| 271 | Cheminformatics | 11 | 107 | 66 | 425 |
| 271 | Membranes | 4 | 107 | 1837 | 2120 |
| 274 | Pathology | 4 | 106 | 2660 | 2823 |
| 275 | Mechanical Engineering | 9 | 100 | 1904 | 1813 |
| 276 | China | 5 | 99 | 2857 | 2666 |
| 277 | Metallurgy | 6 | 97 | 2322 | 2234 |
| 278 | Bioelectronics | 5 | 95 | 997 | 1788 |
| 278 | Extreme environments | 3 | 95 | 258 | 296 |
| 280 | System analysis | 9 | 94 | 1751 | 2275 |
| 281 | Virulence | 1 | 93 | 2221 | 1886 |
| 282 | Surface-Active Agents | 9 | 92 | 593 | 1482 |
| 282 | Radiobiology | 1 | 92 | 3097 | 1802 |
| 284 | Integrated Circuits | 16 | 90 | 229 | 290 |
| 285 | machinery | 2 | 89 | 1230 | 662 |
| 285 | pigments | 6 | 89 | 624 | 872 |
| 287 | Photography | 36 | 88 | 986 | 1028 |
| 288 | nuclear magnetic resonance | 9 | 87 | 780 | 1041 |
| 288 | East Asia | 6 | 87 | 433 | 328 |
| 290 | Machine Learning | 11 | 82 | 125 | 387 |
| 291 | Soft Condensed Matter | 5 | 80 | 995 | 1255 |
| 292 | Liquid Crystals | 12 | 79 | 504 | 649 |
| 293 | Pharmacogenetics | 2 | 78 | 1671 | 1466 |
| 293 | Therapeutics | 2 | 78 | 2775 | 2507 |
| 293 | optical devices | 5 | 78 | 404 | 440 |
| 296 | Leukemia | 1 | 75 | 2209 | 1525 |
| 296 | Perception | 5 | 75 | 1908 | 2441 |
| 298 | Public Health | 2 | 73 | 8987 | 7038 |
| 298 | Health Policy | 2 | 73 | 3735 | 2751 |
| 298 | Crystallization | 16 | 73 | 153 | 390 |
| 301 | Cognitive Science | 17 | 72 | 565 | 1820 |
| 301 | Memory | 4 | 72 | 2114 | 2537 |
| 303 | Visual Perception | 4 | 68 | 1964 | 2343 |
| 304 | Optical Communications | 2 | 67 | 946 | 580 |
| 304 | Semantics | 2 | 67 | 370 | 198 |
| 304 | Enzyme | 2 | 67 | 748 | 831 |
| 304 | Vaccines | 1 | 67 | 3696 | 2483 |
| 308 | Speech-Language Pathology | 4 | 66 | 242 | 308 |
| 308 | Linguistics | 4 | 66 | 1588 | 1156 |
| 308 | Histochemistry | 5 | 66 | 1031 | 1284 |
| 308 | nuclear magnetic resonance spectroscopy | 8 | 66 | 546 | 788 |
| 308 | automatic speech recognition | 4 | 66 | 101 | 194 |
| 308 | Attention | 3 | 66 | 2342 | 2450 |
| 314 | Environmental Engineering | 2 | 65 | 5742 | 5000 |
| 315 | Information Science | 5 | 64 | 2385 | 3034 |
| 316 | Systems Engineering | 7 | 63 | 1697 | 2093 |
| 317 | visualization | 11 | 62 | 883 | 924 |
| 318 | Genetic translocation | 1 | 60 | 437 | 276 |
| 318 | Chromosomes | 3 | 60 | 1212 | 1503 |
| 318 | plasmids | 1 | 60 | 437 | 276 |
| 321 | Mathematical Physics | 1 | 59 | 4984 | 2799 |
| 321 | histological techniques | 3 | 59 | 843 | 1236 |
| 323 | data protection | 4 | 58 | 520 | 532 |
| 324 | Psycholinguistics | 1 | 57 | 1716 | 1235 |
| 324 | glycoproteins | 2 | 57 | 732 | 796 |
| 324 | Glycoconjugates | 2 | 57 | 732 | 796 |
| 324 | Vision | 1 | 57 | 1226 | 988 |
| 324 | glycolipids | 2 | 57 | 732 | 796 |
| 329 | Metals | 1 | 53 | 3975 | 2763 |
| 329 | Nitric oxide | 5 | 53 | 241 | 513 |
| 331 | Environmental Microbiology | 3 | 52 | 1724 | 2458 |
| 331 | Environmental Health | 3 | 52 | 6673 | 7692 |
| 333 | natural products | 4 | 51 | 1891 | 2137 |
| 334 | Geophysics | 2 | 50 | 4831 | 4437 |
| 335 | Mobile Computing | 6 | 49 | 875 | 1173 |
| 335 | Autoantibodies | 1 | 49 | 1223 | 1108 |
| 335 | Autoimmunity | 1 | 49 | 1501 | 1443 |
| 338 | Animal Behavior | 5 | 48 | 1741 | 2898 |
| 338 | gene therapy | 1 | 48 | 2316 | 2003 |
| 340 | Multimedia Systems | 7 | 47 | 1284 | 1808 |
| 341 | Information Systems | 5 | 46 | 1303 | 2126 |
| 341 | Electromagnetic compatibility | 9 | 46 | 24 | 51 |
| 343 | Database Management | 4 | 43 | 819 | 1123 |
| 343 | Pollution | 2 | 43 | 7249 | 7919 |
| 345 | Nuclear Medicine | 3 | 42 | 1367 | 1506 |
| 346 | Biomass Energy | 2 | 41 | 3526 | 3924 |
| 346 | biofuels | 2 | 41 | 426 | 839 |
| 348 | Sustainable Engineering | 2 | 40 | 2394 | 2641 |
| 348 | sanitation | 1 | 40 | 2882 | 3039 |
| 348 | Neuroanatomy | 2 | 40 | 370 | 449 |
| 351 | Pediatrics | 2 | 38 | 4059 | 4348 |
| 351 | Child | 2 | 38 | 3853 | 3634 |
| 351 | Microprocessors | 3 | 38 | 665 | 732 |
| 351 | Freeze-Drying | 1 | 38 | 1074 | 707 |
| 351 | Child Development | 2 | 38 | 2856 | 3109 |
| 351 | Hypothermia | 1 | 38 | 1074 | 707 |
| 351 | Freeze Drying | 1 | 38 | 1074 | 707 |
| 351 | Carbon | 5 | 38 | 1270 | 2438 |
| 359 | Human-robot interaction | 1 | 37 | 120 | 93 |
| 359 | isomerism | 4 | 37 | 299 | 500 |
| 359 | Microscopy | 5 | 37 | 1610 | 2201 |
| 359 | Chirality | 4 | 37 | 299 | 500 |
| 363 | Oligosaccharide | 1 | 36 | 691 | 726 |
| 363 | Carbohydrates | 1 | 36 | 974 | 912 |
| 365 | lasers | 16 | 35 | 892 | 2327 |
| 365 | Biodiversity | 1 | 35 | 4245 | 3488 |
| 367 | Mechatronics | 5 | 34 | 605 | 1090 |
| 367 | biological agents | 2 | 34 | 1052 | 417 |
| 369 | environmental pollution | 3 | 33 | 5306 | 7104 |
| 370 | Operations Research | 8 | 32 | 1679 | 2953 |
| 370 | Immunochemistry | 1 | 32 | 2169 | 1775 |
| 370 | nucleotides | 2 | 32 | 544 | 404 |
| 370 | Algae | 1 | 32 | 1344 | 1214 |
| 370 | Seaweed | 1 | 32 | 1067 | 1052 |
| 375 | Proteomics | 1 | 31 | 2297 | 2345 |
| 375 | Bioenergetics | 2 | 31 | 1273 | 1648 |
| 375 | Raman spectroscopy | 3 | 31 | 997 | 1499 |
| 375 | motor skills | 1 | 31 | 432 | 330 |
| 379 | Pharmacognosy | 5 | 30 | 1743 | 3399 |
| 379 | Alternative Medicine | 5 | 30 | 1743 | 3276 |
| 379 | Ferroelectricity | 8 | 30 | 662 | 1010 |
| 379 | Chemical processes | 1 | 30 | 1346 | 1006 |
| 379 | synthesis | 5 | 30 | 1009 | 1363 |
| 379 | Radiation effects | 2 | 30 | 963 | 1348 |
| 385 | Geographic information systems | 2 | 29 | 1712 | 1577 |
| 385 | Biological productivity | 3 | 29 | 50 | 43 |
| 387 | Nanoelectronics | 4 | 28 | 915 | 1246 |
| 387 | Quantum electronics | 2 | 28 | 1668 | 1238 |
| 387 | Molecular Imaging | 1 | 28 | 1354 | 1365 |
| 387 | Optoelectronic devices | 2 | 28 | 1371 | 989 |
| 387 | Fertilizers | 1 | 28 | 788 | 756 |
| 387 | Europe | 1 | 28 | 6489 | 4762 |
| 393 | Power Electronics | 1 | 27 | 1271 | 1026 |
| 393 | Osteoporosis | 3 | 27 | 435 | 725 |
| 393 | Bone diseases | 3 | 27 | 599 | 1053 |
| 393 | Autonomous robots | 3 | 27 | 175 | 447 |
| 393 | Fuzzy systems | 2 | 27 | 2525 | 2333 |
| 398 | Water | 1 | 26 | 4455 | 4620 |
| 398 | Electrophoresis | 2 | 26 | 2477 | 3111 |
| 398 | Semiconductor industry | 3 | 26 | 778 | 1047 |
| 401 | Urology | 1 | 25 | 3320 | 3185 |
| 401 | Databases | 2 | 25 | 524 | 625 |
| 401 | Porous materials | 1 | 25 | 1561 | 1237 |
| 401 | free radicals | 4 | 25 | 1548 | 2933 |
| 405 | Production Engineering | 2 | 24 | 2845 | 2957 |
| 405 | Virtual reality | 5 | 24 | 274 | 680 |
| 407 | Energy metabolism | 1 | 23 | 1177 | 1235 |
| 407 | fuel cells | 3 | 23 | 1534 | 2214 |
| 407 | cell membrane | 1 | 23 | 1116 | 1213 |
| 410 | Parallel Processing | 1 | 22 | 215 | 174 |
| 410 | Plant hormones | 2 | 22 | 474 | 794 |
| 410 | body temperature | 1 | 22 | 1112 | 1053 |
| 410 | Flow cytometry | 1 | 22 | 954 | 1007 |
| 414 | Computer Engineering | 4 | 21 | 808 | 1542 |
| 414 | Microfabrication | 2 | 21 | 643 | 862 |
| 414 | Magnetic Resonance Spectroscopy | 1 | 21 | 2183 | 2013 |
| 414 | Oligosaccharides | 1 | 21 | 592 | 732 |
| 414 | Culture techniques | 2 | 21 | 483 | 631 |
| 419 | Hormones | 3 | 20 | 1637 | 2781 |
| 420 | Energy Conversion | 2 | 19 | 1717 | 2308 |
| 420 | Energy Storage | 2 | 19 | 1854 | 2178 |
| 420 | Industrial Safety | 1 | 19 | 2544 | 2222 |
| 423 | behavioral medicine | 1 | 18 | 2750 | 3207 |
| 423 | mutation | 1 | 18 | 1274 | 1592 |
| 423 | Plastics | 3 | 18 | 2133 | 3012 |
| 423 | human behavior | 1 | 18 | 4623 | 5421 |
| 423 | management | 1 | 18 | 6061 | 5555 |
| 428 | Statistics | 2 | 17 | 3799 | 3972 |
| 428 | Thin Films | 5 | 17 | 485 | 1160 |
| 428 | Animal welfare | 3 | 17 | 372 | 808 |
| 428 | Asia | 4 | 17 | 3170 | 4813 |
| 428 | Central Asia | 4 | 17 | 139 | 503 |
| 428 | Protein engineering | 2 | 17 | 361 | 694 |
| 428 | molecular design | 2 | 17 | 407 | 703 |
| 435 | Process Control | 1 | 16 | 1650 | 2111 |
| 436 | Industrial Design | 1 | 15 | 606 | 603 |
| 436 | Nanochemistry | 3 | 15 | 1536 | 2414 |
| 436 | Biopharmaceutics | 2 | 15 | 1863 | 2770 |
| 436 | Green Chemistry | 1 | 15 | 2875 | 3466 |
| 436 | Environmental Psychology | 1 | 15 | 767 | 1023 |
| 436 | Dynamics | 1 | 15 | 3452 | 3017 |
| 436 | Pharmacokinetics | 2 | 15 | 1510 | 2267 |
| 436 | Schizophrenia | 1 | 15 | 1921 | 2221 |
| 436 | Mental Disorders | 2 | 15 | 4632 | 6066 |
| 436 | Bifurcation Theory | 1 | 15 | 1332 | 1217 |
| 436 | vibration | 1 | 15 | 2347 | 2340 |
| 436 | Phytotherapy | 1 | 15 | 1841 | 2259 |
| 436 | Mental illness | 2 | 15 | 3117 | 4392 |
| 449 | Data Mining | 4 | 14 | 1878 | 3731 |
| 449 | Electromagnetism | 2 | 14 | 1167 | 1403 |
| 449 | Neurogenesis | 1 | 14 | 19 | 34 |
| 449 | rehabilitation | 1 | 14 | 4321 | 4555 |
| 453 | Orthopedics | 1 | 13 | 3005 | 3185 |
| 453 | Wireless Communication | 3 | 13 | 513 | 1021 |
| 455 | Functional Analysis | 1 | 12 | 2121 | 2038 |
| 455 | Cybernetics | 5 | 12 | 1219 | 2808 |
| 455 | Plant Morphology | 1 | 12 | 1184 | 1385 |
| 455 | Nanophotonics | 1 | 12 | 674 | 863 |
| 455 | Solar power plants | 2 | 12 | 308 | 727 |
| 455 | Nonlinear functional analysis | 1 | 12 | 1957 | 2031 |
| 455 | Kalman Filtering | 2 | 12 | 193 | 249 |
| 455 | embryonic development | 1 | 12 | 913 | 1193 |
| 455 | Photovoltaic Cells | 2 | 12 | 308 | 728 |
| 455 | Protozoa | 1 | 12 | 893 | 1126 |
| 455 | data collection | 1 | 12 | 2693 | 2763 |
| 455 | optical pattern recognition | 3 | 12 | 124 | 272 |
| 455 | brewing | 2 | 12 | 355 | 526 |
| 455 | Mobile apps | 2 | 12 | 2 | 2 |
| 455 | Smartphones | 2 | 12 | 2 | 2 |
| 455 | Decision making | 2 | 12 | 2344 | 3386 |
| 455 | mathematical analysis | 1 | 12 | 3739 | 3337 |
| 472 | Land use | 1 | 11 | 2243 | 2715 |
| 472 | city planning | 1 | 11 | 3189 | 3242 |
| 472 | Nonlinear systems | 2 | 11 | 901 | 1286 |
| 475 | Fluid Mechanics | 1 | 10 | 3085 | 3349 |
| 475 | Thermodynamics | 1 | 10 | 2346 | 2221 |
| 475 | Serology | 1 | 10 | 1179 | 1465 |
| 475 | Acoustics | 10 | 10 | 120 | 360 |
| 475 | Combustion | 1 | 10 | 2241 | 2623 |
| 475 | monoclonal antibodies | 1 | 10 | 590 | 714 |
| 475 | Molecules | 1 | 10 | 2709 | 2801 |
| 475 | Trace elements | 1 | 10 | 651 | 1074 |
| 483 | Chronobiology | 1 | 9 | 993 | 1181 |
| 483 | Nanomedicine | 1 | 9 | 603 | 1009 |
| 483 | Cell migration | 1 | 9 | 257 | 526 |
| 483 | Circadian rhythms | 1 | 9 | 712 | 986 |
| 483 | biological clocks | 1 | 9 | 993 | 1181 |
| 483 | Video Games | 1 | 9 | 215 | 255 |
| 483 | Cell adhesion | 1 | 9 | 434 | 712 |
| 483 | cell movement | 1 | 9 | 546 | 886 |
| 483 | circadian rhythm | 1 | 9 | 993 | 1181 |
| 483 | biological rhythms | 1 | 9 | 935 | 1139 |
| 483 | Synapses | 1 | 9 | 593 | 896 |
| 483 | educational innovations | 1 | 9 | 1078 | 1222 |
| 495 | Oxidative stress | 2 | 8 | 1727 | 3337 |
| 495 | Reproductive health | 1 | 8 | 1743 | 2273 |
| 495 | primary prevention | 1 | 8 | 957 | 1433 |
| 495 | Scanning electron microscopy | 1 | 8 | 474 | 619 |
| 499 | Computational Chemistry | 1 | 7 | 1347 | 1758 |
| 499 | Digital electronics | 4 | 7 | 318 | 808 |
| 499 | Powder Metallurgy | 3 | 7 | 457 | 777 |
| 499 | Synthetic biology | 1 | 7 | 686 | 935 |
| 499 | Cardiovascular diseases | 1 | 7 | 3194 | 3688 |
| 499 | Radioisotopes | 4 | 7 | 1317 | 2767 |
| 499 | Peroxisomes | 1 | 7 | 227 | 507 |
| 506 | Information Theory | 2 | 6 | 1760 | 2531 |
| 506 | Software Maintenance | 2 | 6 | 281 | 609 |
| 506 | Biochemical Genetics | 2 | 6 | 731 | 1207 |
| 506 | Fluorescence spectroscopy | 1 | 6 | 600 | 902 |
| 506 | Molecular Spectroscopy | 1 | 6 | 3217 | 4129 |
| 506 | Cell cycle | 1 | 6 | 720 | 1100 |
| 506 | cell proliferation | 1 | 6 | 799 | 1175 |
| 506 | Antibodies | 1 | 6 | 1440 | 1989 |
| 506 | peptides | 2 | 6 | 1431 | 2512 |
| 506 | carcinogens | 1 | 6 | 2051 | 2953 |
| 506 | Learning | 1 | 6 | 2592 | 3225 |
| 506 | Antigens | 1 | 6 | 1835 | 2459 |
| 506 | World Wide Web | 2 | 6 | 660 | 1201 |
| 519 | Geriatrics | 2 | 5 | 4633 | 6530 |
| 519 | Intelligent Transportation Systems | 3 | 5 | 876 | 1895 |
| 519 | Visual Communication | 1 | 5 | 1028 | 1282 |
| 519 | Neurotoxicology | 1 | 5 | 1235 | 2015 |
| 519 | Apoptosis | 1 | 5 | 659 | 1159 |
| 519 | neurotoxins | 1 | 5 | 659 | 1159 |
| 519 | Multivariate Analysis | 1 | 5 | 959 | 1240 |
| 519 | Neurotoxic agents | 1 | 5 | 659 | 1159 |
| 519 | Image enhancement | 1 | 5 | 733 | 1116 |
| 519 | Sensor Networks | 1 | 5 | 547 | 756 |
| 519 | Stereochemistry | 1 | 5 | 12 | 51 |
| 519 | Electromagnetic interference | 1 | 5 | 14 | 11 |
| 519 | fishing industry | 1 | 5 | 433 | 690 |
| 519 | Classification | 1 | 5 | 634 | 801 |
| 519 | Earth Sciences | 1 | 5 | 5615 | 6530 |
| 519 | carbon monoxide | 1 | 5 | 765 | 1247 |
| 519 | Fisheries | 1 | 5 | 3102 | 3752 |
| 519 | Nerve regeneration | 1 | 5 | 659 | 1159 |
| 537 | Social Psychology | 1 | 4 | 3850 | 5023 |
| 537 | Optoelectronics | 1 | 4 | 1242 | 1509 |
| 537 | environmental protection | 1 | 4 | 6538 | 8192 |
| 537 | Functional foods | 1 | 4 | 906 | 1458 |
| 537 | Fiber Optics | 1 | 4 | 1083 | 1349 |
| 537 | Microfluidics | 1 | 4 | 527 | 891 |
| 537 | Microwaves | 1 | 4 | 1981 | 2263 |
| 544 | Mathematics | 2 | 3 | 7860 | 10168 |
| 544 | Food Safety | 1 | 3 | 682 | 1097 |
| 544 | Telecommunications | 1 | 3 | 1758 | 2301 |
| 544 | Sleep Disorders | 2 | 3 | 2514 | 3898 |
| 544 | Research Design | 1 | 3 | 2675 | 3966 |
| 544 | Environmental monitoring | 1 | 3 | 6675 | 8838 |
| 544 | diffusion | 1 | 3 | 794 | 732 |
| 544 | micromechanics | 1 | 3 | 1251 | 1883 |
| 544 | Quantum Optics | 1 | 3 | 1648 | 2170 |
| 544 | Adaptive control systems | 1 | 3 | 1228 | 1729 |
| 544 | Magnetism | 1 | 3 | 280 | 255 |
| 544 | Mobile Commerce | 1 | 3 | 923 | 1144 |
| 544 | Calorimetry | 1 | 3 | 2341 | 3063 |
| 544 | sleep-wake cycle | 1 | 3 | 333 | 546 |
| 544 | Liposomes | 1 | 3 | 1130 | 1689 |
| 544 | Lipid bilayers | 1 | 3 | 912 | 1292 |
| 544 | Atomic spectroscopy | 1 | 3 | 2097 | 2749 |
| 544 | Laser Spectroscopy | 1 | 3 | 1564 | 2078 |
| 544 | food industry | 1 | 3 | 1596 | 2120 |
| 544 | Thermal analysis | 1 | 3 | 2341 | 3063 |
| 544 | Sleep | 2 | 3 | 2533 | 3918 |
| 565 | Soil Science | 1 | 2 | 3378 | 4533 |
| 565 | Fuzzy Logic | 1 | 2 | 306 | 681 |
| 565 | Radiography | 1 | 2 | 1324 | 2030 |
| 565 | Diagnosis | 1 | 2 | 1425 | 2276 |
| 565 | Drug delivery systems | 1 | 2 | 2935 | 4206 |
| 565 | Evolutionary Computation | 1 | 2 | 881 | 1461 |
| 565 | motivation | 1 | 2 | 656 | 1121 |
| 565 | touch | 1 | 2 | 89 | 150 |
| 565 | Emotion | 1 | 2 | 428 | 780 |
| 565 | calcification | 1 | 2 | 1113 | 1790 |
| 565 | infection | 1 | 2 | 3398 | 4861 |
| 565 | families | 1 | 2 | 1621 | 2369 |
| 565 | drug therapy | 1 | 2 | 4523 | 6143 |
| 565 | color | 1 | 2 | 613 | 1054 |
| 565 | Emotions | 1 | 2 | 1060 | 1655 |
| 580 | Medical Technology | 2 | 1 | 2989 | 6106 |
| 580 | Engineering Mathematics | 1 | 1 | 4579 | 5889 |
| 580 | Systems Analysis | 2 | 1 | 1659 | 3529 |
| 580 | Social Networks | 1 | 1 | 790 | 1374 |
| 580 | Statistical Mechanics | 1 | 1 | 2314 | 3005 |
| 580 | Online social networks | 1 | 1 | 781 | 1438 |
| 580 | Nonlinear Optics | 1 | 1 | 648 | 1035 |
| 580 | Social work | 1 | 1 | 2976 | 4325 |
| 580 | minority groups | 1 | 1 | 176 | 356 |
| 580 | United States | 1 | 1 | 10635 | 13508 |
| 580 | biomedicine | 1 | 1 | 2032 | 3455 |
| 580 | vitamins | 1 | 1 | 376 | 845 |
| 592 | Ergonomics | 1 | 0 | 2081 | 3146 |
| 592 | Special Education | 1 | 0 | 1540 | 2346 |
| 592 | Comparative Physiology | 1 | 0 | 1518 | 2251 |
| 592 | Population Genetics | 1 | 0 | 2300 | 3486 |
| 592 | Agricultural Biotechnology | 1 | 0 | 720 | 1133 |
| 592 | Acoustic holography | 3 | 0 | 109 | 303 |
| 592 | Water pollution | 1 | 0 | 4697 | 6675 |
| 592 | Combinatorial optimization | 1 | 0 | 1060 | 1634 |
| 592 | Superconductors | 1 | 0 | 1268 | 1788 |
| 592 | Risk assessment | 1 | 0 | 1465 | 2703 |
| 592 | Neurotransmitters | 1 | 0 | 1110 | 1400 |
| 592 | Drug design | 1 | 0 | 3529 | 5106 |
| 592 | Waste management | 1 | 0 | 2797 | 4319 |
| 592 | Cognitive neuroscience | 1 | 0 | 1693 | 2697 |
| 592 | Water Purification | 1 | 0 | 2228 | 3564 |
| 592 | Water quality management | 1 | 0 | 3560 | 5403 |
| 592 | Superconductivity | 1 | 0 | 974 | 1461 |
| 592 | Ultrasonics | 3 | 0 | 1302 | 3317 |
| 592 | Digital humanities | 1 | 0 | 247 | 548 |
| 592 | Holography | 3 | 0 | 109 | 303 |
| 592 | Ubiquitous computing | 2 | 0 | 381 | 1186 |
| 592 | Acoustic imaging | 3 | 0 | 109 | 303 |
| 592 | Molecular ecology | 1 | 0 | 2041 | 3147 |
| 592 | starch | 2 | 0 | 581 | 1459 |
| 592 | Cell survival | 1 | 0 | 558 | 1173 |
| 592 | Ultrasonic Imaging | 3 | 0 | 615 | 1920 |
| 592 | System design | 1 | 0 | 642 | 1115 |
| 592 | Respiration | 1 | 0 | 2852 | 4235 |
| 592 | molecular chaperones | 1 | 0 | 631 | 1240 |
| 592 | Pancreatic diseases | 1 | 0 | 1022 | 1282 |
