| 1 | Biology | 414 | 50.3K | 648 | 483 |
| 2 | Science | 213 | 42.9K | 1159 | 537 |
| 3 | Physics | 664 | 39.2K | 614 | 652 |
| 4 | Cytology | 376 | 37.5K | 248 | 203 |
| 5 | Molecular Biology | 455 | 36.6K | 547 | 382 |
| 6 | Biochemistry | 699 | 34.4K | 553 | 433 |
| 7 | Chemistry | 736 | 33.4K | 551 | 554 |
| 8 | Cell Biology | 185 | 30.5K | 402 | 239 |
| 9 | Microbiology | 477 | 29.4K | 325 | 307 |
| 10 | plant molecular biology | 317 | 27.3K | 25 | 33 |
| 11 | Natural history | 36 | 26.4K | 1000 | 450 |
| 12 | Plant cells | 184 | 26.0K | 58 | 50 |
| 13 | Botany | 237 | 18.4K | 309 | 185 |
| 14 | Plants | 171 | 17.1K | 92 | 63 |
| 15 | Plant physiology | 235 | 16.4K | 55 | 52 |
| 16 | Plant genetic engineering | 305 | 13.0K | 7 | 11 |
| 17 | Developmental Biology | 135 | 12.6K | 183 | 147 |
| 18 | Biotechnology | 331 | 11.4K | 286 | 474 |
| 19 | Plant Genetics | 175 | 11.2K | 13 | 14 |
| 20 | Virology | 18 | 9.5K | 1346 | 436 |
| 21 | Embryology | 92 | 9.2K | 173 | 121 |
| 22 | Growth | 81 | 8.7K | 137 | 117 |
| 23 | Genes | 135 | 8.5K | 20 | 9 |
| 24 | Cell differentiation | 65 | 8.5K | 259 | 192 |
| 25 | Anatomy | 60 | 7.9K | 298 | 125 |
| 26 | Bioengineering | 238 | 7.1K | 236 | 474 |
| 27 | Signal Transduction | 125 | 6.0K | 43 | 54 |
| 28 | Neurology | 72 | 5.8K | 1207 | 892 |
| 29 | Polymers | 205 | 5.7K | 495 | 493 |
| 30 | Technology | 420 | 5.5K | 87 | 252 |
| 31 | Cytogenetics | 86 | 5.4K | 142 | 182 |
| 32 | Molecular Genetics | 95 | 5.3K | 162 | 171 |
| 33 | Biomedical Engineering | 174 | 5.3K | 453 | 500 |
| 34 | Biophysics | 178 | 5.2K | 739 | 781 |
| 35 | polymerization | 174 | 5.1K | 440 | 439 |
| 36 | Histology | 92 | 5.1K | 151 | 111 |
| 37 | Immunity | 14 | 5.0K | 903 | 404 |
| 38 | Biomechanics | 83 | 4.7K | 116 | 96 |
| 39 | Gene expression | 81 | 4.6K | 13 | 12 |
| 39 | Cell division | 81 | 4.6K | 14 | 12 |
| 41 | genome | 40 | 4.6K | 298 | 247 |
| 42 | Genetics | 84 | 4.5K | 618 | 668 |
| 43 | Genomics | 63 | 4.4K | 556 | 301 |
| 44 | Medicine | 112 | 4.3K | 1870 | 1879 |
| 45 | Molecular Microbiology | 34 | 4.3K | 168 | 110 |
| 46 | Japan | 271 | 4.1K | 58 | 49 |
| 47 | Immunology | 17 | 4.0K | 1605 | 648 |
| 48 | DNS | 27 | 3.4K | 41 | 6 |
| 49 | Materials | 212 | 3.4K | 759 | 1246 |
| 50 | Research | 94 | 3.3K | 1691 | 1563 |
| 51 | Immunotherapy | 6 | 3.2K | 1509 | 290 |
| 52 | Immune system | 2 | 2.8K | 1312 | 299 |
| 53 | Plant Ecology | 27 | 2.6K | 500 | 266 |
| 54 | Nanotechnology | 86 | 2.6K | 1045 | 1191 |
| 55 | Catalysis | 92 | 2.5K | 732 | 936 |
| 56 | Mass Spectrometry | 6 | 2.4K | 863 | 97 |
| 57 | Speech Perception | 24 | 2.4K | 64 | 29 |
| 57 | auditory perception | 24 | 2.4K | 76 | 34 |
| 59 | Software Engineering | 40 | 2.3K | 153 | 101 |
| 60 | Industrial Microbiology | 45 | 2.3K | 269 | 230 |
| 61 | Solid State Physics | 119 | 2.3K | 715 | 804 |
| 62 | Optical materials | 112 | 2.3K | 282 | 535 |
| 63 | Organic Chemistry | 122 | 2.3K | 350 | 553 |
| 64 | Pharmacology | 27 | 2.2K | 2087 | 1203 |
| 65 | Medical Laboratory Science | 44 | 2.1K | 393 | 400 |
| 66 | Bioorganic chemistry | 52 | 2.1K | 601 | 503 |
| 67 | Genetic engineering | 41 | 2.1K | 414 | 388 |
| 68 | Biochemical Engineering | 25 | 2.1K | 1273 | 1053 |
| 69 | Pharmaceutical Chemistry | 48 | 2.0K | 986 | 869 |
| 70 | Biocompatible Materials | 58 | 1.9K | 937 | 1117 |
| 71 | Agricultural Chemistry | 93 | 1.9K | 233 | 373 |
| 72 | Computational Biology | 38 | 1.9K | 574 | 528 |
| 73 | Ecology | 37 | 1.8K | 2025 | 1902 |
| 74 | nucleic acids | 34 | 1.8K | 488 | 596 |
| 75 | Electronics | 178 | 1.7K | 333 | 691 |
| 76 | gene mapping | 25 | 1.7K | 620 | 481 |
| 77 | Sound | 23 | 1.7K | 303 | 118 |
| 78 | Plant Biotechnology | 127 | 1.7K | 17 | 87 |
| 79 | Image Processing | 43 | 1.7K | 492 | 474 |
| 80 | Bioinformatics | 31 | 1.6K | 541 | 477 |
| 81 | Robotics | 96 | 1.6K | 123 | 248 |
| 82 | Computer Vision | 44 | 1.6K | 172 | 256 |
| 83 | Nervous system | 42 | 1.6K | 589 | 681 |
| 84 | Information Technology | 153 | 1.6K | 44 | 347 |
| 85 | Microbial Ecology | 36 | 1.6K | 568 | 676 |
| 86 | Genetic regulation | 15 | 1.5K | 445 | 316 |
| 87 | Condensed Matter | 69 | 1.5K | 820 | 919 |
| 88 | Environment | 34 | 1.5K | 1513 | 1853 |
| 89 | Neurons | 9 | 1.5K | 360 | 433 |
| 90 | language | 10 | 1.4K | 385 | 127 |
| 91 | proteins | 42 | 1.4K | 431 | 459 |
| 92 | Computer Graphics | 67 | 1.3K | 221 | 312 |
| 93 | Physical organic chemistry | 29 | 1.3K | 302 | 157 |
| 94 | Colloids | 68 | 1.3K | 834 | 1185 |
| 95 | Molecular cloning | 28 | 1.3K | 304 | 221 |
| 95 | Genetic recombination | 28 | 1.3K | 294 | 217 |
| 95 | Recombinant DNA | 28 | 1.3K | 344 | 252 |
| 98 | cell physiology | 16 | 1.3K | 618 | 481 |
| 99 | Surface Chemistry | 84 | 1.3K | 708 | 1157 |
| 100 | Chromosome mapping | 22 | 1.2K | 600 | 485 |
| 101 | Solar Energy | 19 | 1.2K | 580 | 379 |
| 102 | Nanostructured Materials | 49 | 1.1K | 811 | 994 |
| 103 | Molecular structure | 13 | 1.1K | 1202 | 561 |
| 104 | solar cells | 17 | 1.1K | 264 | 172 |
| 105 | Materials Science | 71 | 1.1K | 1049 | 1581 |
| 106 | internet | 8 | 1.1K | 936 | 316 |
| 107 | solar power | 15 | 1.1K | 247 | 144 |
| 108 | Neural circuitry | 44 | 1.1K | 295 | 423 |
| 109 | Allergy | 2 | 1.1K | 1468 | 549 |
| 110 | Host-parasite interactions | 6 | 1.0K | 885 | 535 |
| 111 | Analytical Chemistry | 47 | 1.0K | 1313 | 1481 |
| 112 | Organometallic compounds | 23 | 1.0K | 352 | 218 |
| 113 | Radiation | 59 | 1.0K | 286 | 368 |
| 114 | Luminescence | 71 | 1.0K | 60 | 101 |
| 115 | Human genetics | 4 | 975 | 1969 | 1701 |
| 116 | Neurochemistry | 22 | 973 | 921 | 838 |
| 116 | miniaturization | 24 | 973 | 596 | 715 |
| 118 | Artificial Intelligence | 64 | 961 | 666 | 1107 |
| 119 | Speech | 14 | 960 | 377 | 220 |
| 120 | mycoses | 5 | 914 | 594 | 323 |
| 120 | Bacterial infections | 5 | 914 | 639 | 323 |
| 122 | Photochemistry | 40 | 908 | 246 | 350 |
| 123 | Optics | 73 | 905 | 1045 | 1207 |
| 123 | Developmental Genetics | 8 | 905 | 318 | 280 |
| 125 | Bacteriology | 26 | 885 | 576 | 755 |
| 126 | protein | 25 | 863 | 329 | 349 |
| 127 | Neurophysiology | 18 | 824 | 1240 | 1209 |
| 128 | Gene expression regulation | 8 | 821 | 562 | 343 |
| 129 | Solid State Chemistry | 38 | 805 | 638 | 627 |
| 130 | Neurobiology | 19 | 798 | 713 | 808 |
| 131 | Metabolic diseases | 3 | 793 | 2312 | 1108 |
| 132 | Radiology | 53 | 789 | 224 | 291 |
| 133 | Internet of Things | 5 | 785 | 860 | 313 |
| 134 | Homeostasis | 1 | 782 | 776 | 468 |
| 134 | Cell metabolism | 1 | 782 | 1207 | 484 |
| 136 | cosmic rays | 51 | 760 | 32 | 48 |
| 137 | actuators | 20 | 735 | 845 | 816 |
| 137 | transducers | 20 | 735 | 845 | 816 |
| 139 | Chemical industry | 73 | 731 | 107 | 183 |
| 140 | Signal Processing | 28 | 700 | 871 | 988 |
| 141 | Stem cells | 8 | 696 | 1009 | 635 |
| 141 | enzymes | 28 | 696 | 368 | 499 |
| 143 | Telecommunication | 117 | 695 | 281 | 893 |
| 143 | cloning | 7 | 695 | 424 | 321 |
| 145 | Photobiology | 28 | 692 | 200 | 272 |
| 146 | Communication | 12 | 691 | 929 | 660 |
| 147 | Oral communication | 11 | 686 | 139 | 60 |
| 148 | Physiology | 12 | 675 | 2298 | 1732 |
| 149 | nanoscience | 18 | 672 | 1282 | 1314 |
| 150 | Molecular evolution | 7 | 628 | 948 | 595 |
| 150 | visualization | 34 | 628 | 346 | 252 |
| 152 | Clinical Chemistry | 12 | 626 | 1582 | 1281 |
| 153 | United Kingdom | 8 | 618 | 955 | 647 |
| 154 | viral genetics | 3 | 597 | 323 | 288 |
| 155 | Metabolism | 13 | 585 | 1390 | 1437 |
| 156 | Oncogenes | 12 | 572 | 600 | 772 |
| 157 | Magnetic Materials | 29 | 569 | 433 | 545 |
| 158 | Combinatorial chemistry | 13 | 562 | 292 | 348 |
| 159 | Bioinorganic chemistry | 20 | 543 | 460 | 446 |
| 159 | Yeast | 27 | 543 | 41 | 122 |
| 161 | Educational Technology | 3 | 528 | 1573 | 423 |
| 161 | Medical Physics | 13 | 528 | 886 | 775 |
| 163 | Proteome | 15 | 502 | 476 | 599 |
| 164 | Brain | 22 | 493 | 1068 | 1279 |
| 165 | Chemical Engineering | 43 | 492 | 1457 | 2379 |
| 166 | Statistical physics | 20 | 485 | 1474 | 1416 |
| 167 | Engineering | 11 | 478 | 2568 | 1535 |
| 168 | cell interaction | 8 | 464 | 618 | 477 |
| 169 | Diagnostic Imaging | 14 | 461 | 894 | 828 |
| 170 | Physical Chemistry | 19 | 457 | 865 | 1041 |
| 171 | Plant diseases | 13 | 452 | 980 | 772 |
| 171 | Evolution | 7 | 452 | 1225 | 935 |
| 173 | plant communities | 7 | 450 | 690 | 607 |
| 174 | Microelectronics | 15 | 448 | 853 | 941 |
| 175 | Photonics | 29 | 444 | 635 | 1034 |
| 176 | Psychophysiology | 7 | 435 | 1867 | 1509 |
| 177 | Cerebral cortex | 7 | 431 | 613 | 499 |
| 178 | Immunopharmacology | 4 | 405 | 1044 | 397 |
| 178 | cytokines | 4 | 405 | 1178 | 604 |
| 180 | Microbial Genetics | 6 | 397 | 195 | 157 |
| 180 | phytopathogenic bacteria | 6 | 397 | 153 | 151 |
| 182 | Transgenic plants | 10 | 396 | 181 | 190 |
| 183 | Environmental Chemistry | 2 | 393 | 2652 | 1297 |
| 184 | computer networks | 32 | 386 | 684 | 1125 |
| 185 | Spectrum analysis | 27 | 385 | 1703 | 2219 |
| 185 | DNA polymerases | 1 | 385 | 804 | 484 |
| 187 | Pharmaceutical Technology | 7 | 372 | 1023 | 703 |
| 187 | Cancer | 12 | 372 | 1927 | 2249 |
| 189 | catalytic activity | 6 | 367 | 426 | 290 |
| 190 | Chemical Ecology | 1 | 363 | 854 | 244 |
| 190 | pheromones | 1 | 363 | 797 | 227 |
| 192 | Medical genetics | 5 | 358 | 2210 | 1935 |
| 193 | Plant tissue culture | 18 | 356 | 175 | 290 |
| 193 | Plant cell culture | 17 | 356 | 161 | 283 |
| 195 | transgenic organisms | 7 | 355 | 119 | 87 |
| 195 | transgenic animals | 7 | 355 | 109 | 82 |
| 197 | Systems Biology | 15 | 350 | 645 | 712 |
| 198 | Computer Science | 50 | 340 | 225 | 615 |
| 199 | Endocrinology | 12 | 313 | 1623 | 2050 |
| 200 | Quantum electronics | 15 | 310 | 752 | 714 |
| 201 | Wireless Communication Systems | 22 | 306 | 909 | 1134 |
| 201 | Multimedia Systems | 15 | 306 | 746 | 694 |
| 203 | Organometallic chemistry | 13 | 300 | 961 | 782 |
| 204 | Electrochemistry | 80 | 296 | 855 | 2075 |
| 204 | Ceramic materials | 12 | 296 | 622 | 607 |
| 206 | Energy Policy | 1 | 293 | 3985 | 1948 |
| 207 | Nanoparticles | 10 | 285 | 1077 | 1127 |
| 207 | Behavior | 7 | 285 | 2178 | 2145 |
| 209 | Oxidation-reduction | 5 | 277 | 652 | 732 |
| 210 | Crystal growth | 14 | 274 | 392 | 510 |
| 211 | Neuropsychology | 5 | 273 | 1798 | 1324 |
| 212 | Reproduction | 11 | 271 | 1254 | 1315 |
| 213 | lasers | 16 | 267 | 1008 | 1053 |
| 214 | Pediatric Neurology | 2 | 265 | 1210 | 969 |
| 215 | Fermentation | 5 | 261 | 183 | 87 |
| 216 | Antioxidants | 4 | 258 | 675 | 649 |
| 217 | Psychiatry | 5 | 257 | 3451 | 2697 |
| 217 | viruses | 3 | 257 | 1493 | 1170 |
| 219 | Composite Materials | 8 | 256 | 1795 | 1876 |
| 220 | Developmental Neurobiology | 5 | 254 | 371 | 211 |
| 221 | Automation | 9 | 252 | 1392 | 1403 |
| 222 | biological evolution | 3 | 251 | 2074 | 1560 |
| 223 | Electromagnetic compatibility | 20 | 249 | 89 | 155 |
| 224 | food technology | 3 | 248 | 2570 | 1611 |
| 225 | multimedia | 7 | 245 | 314 | 306 |
| 225 | Interactive multimedia | 7 | 245 | 347 | 320 |
| 227 | Diabetes mellitus | 3 | 243 | 2098 | 1621 |
| 227 | Diabetes | 3 | 243 | 2230 | 1671 |
| 229 | Breeding | 13 | 239 | 545 | 745 |
| 230 | Microbial Biotechnology | 6 | 235 | 625 | 509 |
| 230 | Crystallography | 39 | 235 | 354 | 576 |
| 232 | X-ray crystallography | 36 | 232 | 85 | 236 |
| 233 | Human-Computer Interaction | 20 | 228 | 423 | 895 |
| 233 | Nonlinear Dynamics | 11 | 228 | 1098 | 1152 |
| 235 | Hematology | 4 | 226 | 2426 | 1990 |
| 235 | biopolymers | 7 | 226 | 803 | 770 |
| 237 | software | 17 | 223 | 286 | 731 |
| 238 | Nuclear Physics | 10 | 220 | 2588 | 2408 |
| 239 | Electrical Engineering | 43 | 219 | 933 | 1516 |
| 239 | Nuclear Engineering | 7 | 219 | 1201 | 746 |
| 239 | Light | 13 | 219 | 400 | 881 |
| 242 | Biological Systems | 4 | 218 | 467 | 301 |
| 243 | Ceramics | 14 | 216 | 676 | 871 |
| 244 | Meteorology | 3 | 210 | 2237 | 1784 |
| 244 | Semiconductors | 18 | 210 | 849 | 1091 |
| 246 | Supramolecular chemistry | 9 | 206 | 72 | 37 |
| 247 | Chemical analysis | 4 | 205 | 1096 | 777 |
| 248 | Ophthalmology | 5 | 199 | 1515 | 1292 |
| 248 | biological factors | 7 | 199 | 1317 | 1256 |
| 250 | Psychology | 7 | 197 | 3320 | 2950 |
| 251 | Telecommunication Systems | 17 | 191 | 569 | 803 |
| 252 | Cell death | 5 | 184 | 1042 | 1233 |
| 253 | Computer-Aided Design | 15 | 183 | 447 | 732 |
| 254 | Toxicology | 14 | 177 | 2507 | 3773 |
| 255 | Plant breeding | 13 | 174 | 302 | 520 |
| 256 | Informatics | 12 | 172 | 333 | 624 |
| 257 | Information Theory | 9 | 169 | 815 | 937 |
| 257 | Industrial Engineering | 5 | 169 | 1440 | 1299 |
| 257 | Systems Engineering | 8 | 169 | 1399 | 1353 |
| 260 | Bones | 3 | 168 | 828 | 775 |
| 261 | Analytical Biochemistry | 8 | 165 | 1121 | 1268 |
| 262 | Detectors | 14 | 161 | 643 | 997 |
| 263 | Cheminformatics | 12 | 159 | 56 | 344 |
| 263 | pigments | 9 | 159 | 423 | 559 |
| 265 | Zeolites | 2 | 156 | 1165 | 831 |
| 266 | Biosensors | 8 | 154 | 800 | 1456 |
| 266 | Morphology | 1 | 154 | 1323 | 452 |
| 268 | Pharmacy | 8 | 152 | 1393 | 1702 |
| 268 | Medical Microbiology | 2 | 152 | 2785 | 2165 |
| 270 | Control Theory | 14 | 150 | 818 | 1103 |
| 271 | Genetic therapy | 3 | 148 | 1227 | 1145 |
| 272 | Food Microbiology | 4 | 147 | 1088 | 1230 |
| 273 | Synchrotron Radiation | 4 | 146 | 341 | 223 |
| 274 | rehabilitation | 3 | 141 | 2332 | 1821 |
| 275 | Autoimmune diseases | 3 | 137 | 678 | 622 |
| 276 | Radiography | 3 | 136 | 853 | 893 |
| 276 | Functional Genomics | 4 | 136 | 213 | 324 |
| 278 | Biomolecules | 2 | 132 | 610 | 500 |
| 279 | Psychopharmacology | 2 | 131 | 1856 | 1503 |
| 280 | Virulence | 1 | 130 | 1813 | 1450 |
| 280 | Membranes | 3 | 130 | 1764 | 1743 |
| 282 | Computational Linguistics | 15 | 129 | 88 | 191 |
| 283 | Surface properties | 11 | 128 | 505 | 1232 |
| 284 | Pathology | 4 | 121 | 2022 | 2174 |
| 285 | Nanostructures | 15 | 120 | 809 | 1878 |
| 285 | Bioelectronics | 5 | 120 | 898 | 1493 |
| 287 | Glass | 3 | 119 | 1239 | 1026 |
| 287 | pottery | 3 | 119 | 1180 | 1004 |
| 289 | DNA repair | 3 | 116 | 300 | 295 |
| 290 | Microwaves | 5 | 112 | 1204 | 1020 |
| 291 | Radiobiology | 1 | 109 | 2241 | 1382 |
| 292 | Extreme environments | 3 | 108 | 223 | 269 |
| 293 | Integrated Circuits | 16 | 105 | 268 | 347 |
| 293 | energy conservation | 1 | 105 | 3233 | 2343 |
| 295 | System analysis | 10 | 103 | 1287 | 1898 |
| 296 | China | 4 | 102 | 2669 | 2413 |
| 297 | Public Health | 2 | 101 | 6836 | 5267 |
| 297 | Computer Engineering | 8 | 101 | 493 | 689 |
| 297 | Health Policy | 2 | 101 | 2890 | 2090 |
| 300 | Machine Learning | 11 | 100 | 114 | 324 |
| 301 | Surface-Active Agents | 9 | 95 | 551 | 1324 |
| 301 | nuclear magnetic resonance | 9 | 95 | 635 | 866 |
| 301 | East Asia | 6 | 95 | 392 | 323 |
| 304 | Mechanical Engineering | 2 | 94 | 3013 | 1802 |
| 304 | Soft Condensed Matter | 5 | 94 | 874 | 1065 |
| 304 | machinery | 2 | 94 | 1023 | 609 |
| 307 | Photography | 36 | 93 | 438 | 529 |
| 308 | Pharmacogenetics | 2 | 91 | 1323 | 1148 |
| 308 | Therapeutics | 2 | 91 | 2249 | 2018 |
| 308 | optical devices | 5 | 91 | 362 | 386 |
| 311 | Perception | 5 | 89 | 1478 | 1877 |
| 312 | Liquid Crystals | 12 | 88 | 432 | 537 |
| 313 | Cybernetics | 7 | 86 | 1072 | 1603 |
| 313 | Enzyme | 2 | 86 | 678 | 674 |
| 313 | Chromosomes | 3 | 86 | 1027 | 1150 |
| 316 | Cognitive Science | 18 | 84 | 489 | 1625 |
| 317 | Fiber Optics | 6 | 83 | 767 | 988 |
| 318 | Leukemia | 1 | 81 | 1614 | 1300 |
| 319 | Memory | 4 | 80 | 1632 | 2013 |
| 320 | Visual Perception | 4 | 77 | 1524 | 1835 |
| 321 | Environmental Engineering | 2 | 75 | 4532 | 4121 |
| 321 | Semantics | 2 | 75 | 276 | 184 |
| 321 | Crystallization | 16 | 75 | 149 | 381 |
| 324 | Speech-Language Pathology | 4 | 74 | 247 | 294 |
| 324 | Linguistics | 4 | 74 | 1076 | 1000 |
| 324 | Mechatronics | 7 | 74 | 560 | 1002 |
| 324 | nuclear magnetic resonance spectroscopy | 8 | 74 | 419 | 635 |
| 324 | automatic speech recognition | 4 | 74 | 115 | 185 |
| 329 | Attention | 3 | 73 | 1816 | 1953 |
| 330 | Optical Communications | 2 | 72 | 1069 | 763 |
| 330 | Histochemistry | 3 | 72 | 1054 | 1075 |
| 332 | Intelligent Transportation Systems | 7 | 71 | 743 | 1320 |
| 332 | Information Science | 5 | 71 | 2030 | 2609 |
| 332 | Vaccines | 1 | 71 | 3101 | 2189 |
| 335 | Optoelectronic devices | 6 | 70 | 659 | 671 |
| 336 | Animal Behavior | 6 | 69 | 1316 | 2234 |
| 337 | Mathematical Physics | 1 | 65 | 3669 | 2231 |
| 337 | glycoproteins | 2 | 65 | 614 | 672 |
| 337 | Glycoconjugates | 2 | 65 | 614 | 672 |
| 337 | glycolipids | 2 | 65 | 614 | 672 |
| 341 | Environmental Microbiology | 3 | 64 | 1453 | 2075 |
| 341 | histological techniques | 3 | 64 | 712 | 1040 |
| 343 | Parallel Processing | 4 | 63 | 401 | 604 |
| 343 | Nitric oxide | 2 | 63 | 338 | 417 |
| 345 | Psycholinguistics | 1 | 62 | 1387 | 1035 |
| 345 | natural products | 4 | 62 | 1623 | 1814 |
| 345 | Vision | 1 | 62 | 1038 | 839 |
| 345 | data protection | 4 | 62 | 480 | 507 |
| 349 | Environmental Health | 3 | 60 | 5349 | 6321 |
| 349 | Genetic translocation | 1 | 60 | 391 | 292 |
| 349 | plasmids | 1 | 60 | 391 | 292 |
| 352 | Geophysics | 2 | 59 | 4017 | 3720 |
| 353 | Information Systems | 5 | 57 | 1089 | 1679 |
| 353 | gene therapy | 1 | 57 | 1842 | 1624 |
| 355 | Mobile Computing | 5 | 55 | 902 | 1210 |
| 356 | Metallurgy | 4 | 51 | 2255 | 2504 |
| 357 | Biomass Energy | 2 | 50 | 2829 | 3190 |
| 357 | biofuels | 2 | 50 | 371 | 728 |
| 357 | Autoantibodies | 1 | 50 | 1000 | 951 |
| 357 | Autoimmunity | 1 | 50 | 1231 | 1220 |
| 361 | Pollution | 2 | 49 | 5929 | 6535 |
| 362 | Nuclear Medicine | 3 | 48 | 1088 | 1251 |
| 363 | Sustainable Engineering | 2 | 47 | 1998 | 2264 |
| 363 | environmental pollution | 3 | 47 | 4384 | 5585 |
| 365 | sanitation | 1 | 45 | 2352 | 2610 |
| 365 | Microprocessors | 4 | 45 | 560 | 760 |
| 367 | Fluid Mechanics | 2 | 44 | 1928 | 1774 |
| 367 | Human-robot interaction | 1 | 44 | 120 | 89 |
| 367 | free radicals | 4 | 44 | 1246 | 2238 |
| 367 | Radiation effects | 3 | 44 | 652 | 1047 |
| 371 | Freeze-Drying | 1 | 43 | 767 | 596 |
| 371 | Hypothermia | 1 | 43 | 767 | 596 |
| 371 | Freeze Drying | 1 | 43 | 767 | 596 |
| 371 | Oligosaccharide | 1 | 43 | 594 | 616 |
| 371 | Carbohydrates | 1 | 43 | 808 | 746 |
| 371 | Radio | 4 | 43 | 1445 | 2030 |
| 371 | biological agents | 2 | 43 | 888 | 337 |
| 378 | Neuroanatomy | 2 | 42 | 306 | 392 |
| 379 | Virtual reality | 7 | 41 | 205 | 577 |
| 380 | isomerism | 4 | 40 | 247 | 409 |
| 380 | Chirality | 4 | 40 | 247 | 409 |
| 380 | motor skills | 1 | 40 | 394 | 274 |
| 383 | synthesis | 6 | 38 | 735 | 1115 |
| 384 | Carbon | 3 | 37 | 1382 | 2208 |
| 384 | Biodiversity | 1 | 37 | 3363 | 3038 |
| 386 | Power Electronics | 2 | 36 | 1303 | 1561 |
| 386 | nucleotides | 2 | 36 | 450 | 334 |
| 388 | Pharmacognosy | 5 | 35 | 1482 | 2834 |
| 388 | Alternative Medicine | 5 | 35 | 1144 | 2400 |
| 388 | Biological productivity | 3 | 35 | 42 | 36 |
| 388 | Osteoporosis | 3 | 35 | 368 | 618 |
| 388 | Algae | 1 | 35 | 1159 | 1066 |
| 388 | Seaweed | 1 | 35 | 899 | 912 |
| 388 | Bone diseases | 3 | 35 | 493 | 897 |
| 395 | fuel cells | 3 | 34 | 1334 | 1846 |
| 395 | Chemical processes | 1 | 34 | 1170 | 890 |
| 395 | Fertilizers | 1 | 34 | 632 | 626 |
| 395 | Autonomous robots | 3 | 34 | 174 | 393 |
| 399 | Bioenergetics | 2 | 33 | 1047 | 1430 |
| 399 | Geographic information systems | 2 | 33 | 1453 | 1429 |
| 399 | Immunochemistry | 1 | 33 | 1754 | 1581 |
| 402 | Proteomics | 1 | 32 | 1877 | 2006 |
| 402 | Raman spectroscopy | 3 | 32 | 817 | 1261 |
| 402 | Ferroelectricity | 11 | 32 | 543 | 1196 |
| 405 | Operations Research | 1 | 31 | 3048 | 2641 |
| 406 | Nanochemistry | 3 | 30 | 1337 | 1860 |
| 406 | Molecular Imaging | 1 | 30 | 1102 | 1175 |
| 406 | Europe | 1 | 30 | 4950 | 3991 |
| 409 | Database Management | 4 | 29 | 671 | 1128 |
| 409 | Energy Conversion | 2 | 29 | 1499 | 2015 |
| 409 | Energy Storage | 2 | 29 | 1577 | 1834 |
| 409 | Water | 1 | 29 | 3706 | 3945 |
| 409 | Electrophoresis | 2 | 29 | 2047 | 2556 |
| 409 | Hormones | 3 | 29 | 1317 | 2142 |
| 409 | Fuzzy systems | 1 | 29 | 2529 | 1935 |
| 416 | Nanoelectronics | 4 | 28 | 792 | 1119 |
| 416 | Databases | 2 | 28 | 477 | 568 |
| 416 | supercritical fluids | 1 | 28 | 698 | 795 |
| 416 | Microscopy | 3 | 28 | 1505 | 1956 |
| 416 | Flow cytometry | 1 | 28 | 773 | 810 |
| 421 | Microfabrication | 2 | 27 | 546 | 689 |
| 422 | Urology | 1 | 26 | 2610 | 2657 |
| 422 | Orthopedics | 2 | 26 | 1965 | 2384 |
| 422 | Production Engineering | 2 | 26 | 2438 | 2633 |
| 422 | Industrial Safety | 1 | 26 | 2072 | 1855 |
| 422 | human behavior | 2 | 26 | 2903 | 4242 |
| 422 | Porous materials | 1 | 26 | 1337 | 1116 |
| 422 | Semiconductor industry | 3 | 26 | 668 | 955 |
| 429 | Electromagnetism | 2 | 25 | 1298 | 1476 |
| 429 | Mental Disorders | 2 | 25 | 3475 | 4409 |
| 429 | Plant hormones | 2 | 25 | 408 | 684 |
| 429 | body temperature | 1 | 25 | 1032 | 962 |
| 429 | Culture techniques | 2 | 25 | 407 | 521 |
| 429 | Mental illness | 2 | 25 | 2356 | 3245 |
| 435 | Data Mining | 4 | 24 | 1553 | 2998 |
| 435 | Thin Films | 5 | 24 | 411 | 885 |
| 435 | Plastics | 3 | 24 | 1782 | 2450 |
| 438 | Pediatrics | 1 | 23 | 3911 | 4095 |
| 438 | behavioral medicine | 1 | 23 | 2229 | 2639 |
| 438 | Child | 1 | 23 | 3822 | 3541 |
| 438 | Energy metabolism | 1 | 23 | 925 | 1066 |
| 438 | Child Development | 1 | 23 | 2912 | 3002 |
| 438 | cell membrane | 1 | 23 | 887 | 1043 |
| 444 | Oxidative stress | 2 | 22 | 1151 | 2000 |
| 444 | Oligosaccharides | 1 | 22 | 514 | 631 |
| 444 | Decision making | 2 | 22 | 1870 | 2470 |
| 447 | Nanomedicine | 1 | 21 | 513 | 714 |
| 447 | mutation | 1 | 21 | 1088 | 1313 |
| 447 | Magnetic Resonance Spectroscopy | 1 | 21 | 1789 | 1688 |
| 447 | Protein engineering | 2 | 21 | 326 | 583 |
| 447 | molecular design | 2 | 21 | 358 | 590 |
| 452 | Neurogenesis | 1 | 20 | 23 | 29 |
| 452 | management | 1 | 20 | 4792 | 4737 |
| 452 | Asia | 4 | 20 | 2684 | 4053 |
| 452 | Central Asia | 4 | 20 | 105 | 445 |
| 456 | Statistics | 2 | 19 | 3018 | 3222 |
| 456 | Nanophotonics | 1 | 19 | 388 | 529 |
| 456 | Animal welfare | 2 | 19 | 392 | 716 |
| 459 | data collection | 1 | 18 | 2135 | 2365 |
| 459 | optical pattern recognition | 4 | 18 | 100 | 223 |
| 459 | antibiotics | 1 | 18 | 502 | 655 |
| 462 | Green Chemistry | 1 | 17 | 2480 | 3033 |
| 463 | Industrial Design | 1 | 16 | 515 | 627 |
| 463 | Thermodynamics | 1 | 16 | 1959 | 1743 |
| 463 | Process Control | 1 | 16 | 1466 | 1902 |
| 463 | Combustion | 1 | 16 | 1959 | 2096 |
| 463 | Wireless Communication | 3 | 16 | 470 | 882 |
| 463 | embryonic development | 1 | 16 | 743 | 972 |
| 469 | Solar power plants | 2 | 15 | 274 | 641 |
| 469 | Land use | 1 | 15 | 1885 | 2264 |
| 469 | Photovoltaic Cells | 2 | 15 | 275 | 642 |
| 469 | city planning | 1 | 15 | 2440 | 2595 |
| 469 | Scanning electron microscopy | 1 | 15 | 315 | 366 |
| 474 | Serology | 1 | 14 | 954 | 1177 |
| 475 | Functional Analysis | 1 | 13 | 1730 | 1675 |
| 475 | Nonlinear functional analysis | 1 | 13 | 1584 | 1644 |
| 475 | touch | 3 | 13 | 102 | 294 |
| 475 | Radioisotopes | 4 | 13 | 1092 | 2021 |
| 475 | Protozoa | 1 | 13 | 743 | 932 |
| 475 | brewing | 2 | 13 | 290 | 470 |
| 475 | mathematical analysis | 1 | 13 | 2885 | 2624 |
| 482 | Plant Morphology | 1 | 12 | 1005 | 1198 |
| 482 | Kalman Filtering | 2 | 12 | 160 | 217 |
| 482 | Cell cycle | 1 | 12 | 631 | 885 |
| 482 | cell proliferation | 1 | 12 | 692 | 951 |
| 482 | Mobile apps | 2 | 12 | 2 | 2 |
| 482 | Smartphones | 2 | 12 | 2 | 2 |
| 482 | Synapses | 1 | 12 | 501 | 734 |
| 489 | Chronobiology | 1 | 11 | 944 | 1160 |
| 489 | Circadian rhythms | 1 | 11 | 716 | 1021 |
| 489 | biological clocks | 1 | 11 | 944 | 1160 |
| 489 | circadian rhythm | 1 | 11 | 944 | 1160 |
| 489 | biological rhythms | 1 | 11 | 903 | 1132 |
| 489 | Trace elements | 1 | 11 | 566 | 926 |
| 489 | Nonlinear systems | 2 | 11 | 727 | 1109 |
| 496 | Geriatrics | 2 | 10 | 3619 | 5075 |
| 496 | Acoustics | 10 | 10 | 185 | 620 |
| 496 | Digital electronics | 4 | 10 | 263 | 596 |
| 496 | Cell migration | 1 | 10 | 228 | 454 |
| 496 | Research Design | 1 | 10 | 2147 | 2878 |
| 496 | monoclonal antibodies | 2 | 10 | 453 | 860 |
| 496 | Synthetic biology | 1 | 10 | 612 | 868 |
| 496 | Video Games | 1 | 10 | 143 | 144 |
| 496 | Cell adhesion | 1 | 10 | 368 | 606 |
| 496 | Calorimetry | 1 | 10 | 1950 | 2255 |
| 496 | Molecules | 1 | 10 | 2180 | 2352 |
| 496 | cell movement | 1 | 10 | 454 | 720 |
| 496 | Peroxisomes | 1 | 10 | 103 | 272 |
| 496 | Liposomes | 1 | 10 | 974 | 1255 |
| 496 | Lipid bilayers | 1 | 10 | 789 | 960 |
| 496 | United States | 2 | 10 | 6723 | 8878 |
| 496 | educational innovations | 1 | 10 | 922 | 1131 |
| 496 | Thermal analysis | 1 | 10 | 1950 | 2255 |
| 514 | Computational Chemistry | 1 | 9 | 1115 | 1426 |
| 514 | Social Psychology | 1 | 9 | 3187 | 3896 |
| 514 | Reproductive health | 1 | 9 | 1488 | 2004 |
| 514 | Microfluidics | 1 | 9 | 448 | 701 |
| 514 | Cardiovascular diseases | 1 | 9 | 2694 | 3214 |
| 514 | primary prevention | 1 | 9 | 793 | 1242 |
| 520 | Neurotoxicology | 1 | 8 | 1079 | 1692 |
| 520 | Apoptosis | 1 | 8 | 558 | 978 |
| 520 | neurotoxins | 1 | 8 | 558 | 978 |
| 520 | Neurotoxic agents | 1 | 8 | 558 | 978 |
| 520 | Measurement | 1 | 8 | 2316 | 2848 |
| 520 | peptides | 2 | 8 | 1081 | 1930 |
| 520 | Testing | 1 | 8 | 199 | 269 |
| 520 | Nerve regeneration | 1 | 8 | 558 | 978 |
| 528 | Medical Technology | 2 | 7 | 2292 | 4110 |
| 528 | Food Safety | 1 | 7 | 593 | 923 |
| 528 | Biochemical Genetics | 2 | 7 | 614 | 1097 |
| 528 | Stereochemistry | 1 | 7 | 8 | 34 |
| 528 | Electromagnetic interference | 1 | 7 | 40 | 51 |
| 528 | Learning | 1 | 7 | 1911 | 2570 |
| 528 | food industry | 1 | 7 | 1450 | 1759 |
| 535 | Software Maintenance | 2 | 6 | 265 | 565 |
| 535 | environmental protection | 1 | 6 | 5250 | 6689 |
| 535 | Powder Metallurgy | 1 | 6 | 517 | 546 |
| 535 | Sensor Networks | 1 | 6 | 509 | 690 |
| 535 | Fluorescence spectroscopy | 1 | 6 | 517 | 803 |
| 535 | Molecular Spectroscopy | 1 | 6 | 2662 | 3435 |
| 535 | calcification | 1 | 6 | 933 | 1409 |
| 535 | Antibodies | 1 | 6 | 1165 | 1666 |
| 535 | carcinogens | 1 | 6 | 1706 | 2495 |
| 535 | Antigens | 1 | 6 | 1445 | 2022 |
| 535 | Earth Sciences | 1 | 6 | 4495 | 5369 |
| 535 | carbon monoxide | 1 | 6 | 709 | 1163 |
| 535 | World Wide Web | 2 | 6 | 593 | 1073 |
| 548 | Visual Communication | 1 | 5 | 893 | 1192 |
| 548 | diffusion | 1 | 5 | 594 | 504 |
| 548 | Multivariate Analysis | 1 | 5 | 833 | 1122 |
| 548 | Image enhancement | 1 | 5 | 731 | 1054 |
| 548 | Drug delivery systems | 1 | 5 | 2588 | 3541 |
| 548 | Adaptive control systems | 1 | 5 | 1027 | 1402 |
| 548 | fishing industry | 1 | 5 | 289 | 498 |
| 548 | Classification | 1 | 5 | 552 | 710 |
| 548 | drug therapy | 1 | 5 | 3717 | 5040 |
| 548 | Fisheries | 1 | 5 | 2482 | 3167 |
| 558 | Optoelectronics | 1 | 4 | 995 | 1267 |
| 558 | Population Genetics | 1 | 4 | 1855 | 2682 |
| 558 | Environmental monitoring | 1 | 4 | 5437 | 7249 |
| 558 | Cognitive neuroscience | 2 | 4 | 1136 | 2146 |
| 558 | Molecular ecology | 1 | 4 | 1652 | 2517 |
| 563 | Ergonomics | 1 | 3 | 1708 | 2235 |
| 563 | Telecommunications | 1 | 3 | 1495 | 2008 |
| 563 | Social Networks | 1 | 3 | 676 | 1122 |
| 563 | Sleep Disorders | 2 | 3 | 1910 | 3178 |
| 563 | Online social networks | 1 | 3 | 679 | 1169 |
| 563 | micromechanics | 1 | 3 | 1054 | 1583 |
| 563 | Quantum Optics | 1 | 3 | 1364 | 1785 |
| 563 | Ethology | 1 | 3 | 2149 | 3194 |
| 563 | motivation | 1 | 3 | 606 | 1025 |
| 563 | Emotion | 1 | 3 | 371 | 688 |
| 563 | Cell survival | 1 | 3 | 487 | 959 |
| 563 | sleep-wake cycle | 1 | 3 | 302 | 523 |
| 563 | infection | 1 | 3 | 2769 | 4084 |
| 563 | Atomic spectroscopy | 1 | 3 | 1781 | 2332 |
| 563 | Laser Spectroscopy | 1 | 3 | 1309 | 1729 |
| 563 | Endocrine system | 1 | 3 | 1280 | 1074 |
| 563 | molecular chaperones | 1 | 3 | 540 | 981 |
| 563 | Sleep | 2 | 3 | 1950 | 3222 |
| 563 | Emotions | 1 | 3 | 915 | 1415 |
| 582 | Nutrition | 1 | 2 | 6248 | 8253 |
| 582 | Mathematics | 1 | 2 | 6872 | 7973 |
| 582 | Soil Science | 1 | 2 | 2764 | 3736 |
| 582 | Systems Analysis | 2 | 2 | 1445 | 2892 |
| 582 | Diagnosis | 1 | 2 | 871 | 1467 |
| 582 | Superconductors | 1 | 2 | 1522 | 1974 |
| 582 | Superconductivity | 1 | 2 | 803 | 1150 |
| 582 | Food | 1 | 2 | 4508 | 6215 |
| 582 | families | 1 | 2 | 1412 | 2098 |
| 582 | Social work | 1 | 2 | 2457 | 3469 |
| 582 | minority groups | 1 | 2 | 156 | 306 |
| 582 | color | 1 | 2 | 524 | 887 |
| 582 | Respiration | 1 | 2 | 2353 | 3423 |
| 582 | vitamins | 1 | 2 | 330 | 711 |
| 596 | Nonlinear Optics | 1 | 1 | 238 | 380 |
| 596 | Ultrasonics | 6 | 1 | 866 | 3016 |
| 596 | Entropy | 1 | 1 | 1944 | 2821 |
| 596 | extraterrestrial environment | 1 | 1 | 1177 | 1804 |
| 596 | Ultrasound | 3 | 1 | 794 | 2049 |
| 596 | Radio frequency | 3 | 1 | 495 | 1370 |
| 602 | Special Education | 1 | 0 | 1251 | 1931 |
| 602 | Avionics | 1 | 0 | 350 | 680 |
| 602 | Agricultural Biotechnology | 1 | 0 | 591 | 983 |
| 602 | Acoustic holography | 3 | 0 | 94 | 258 |
| 602 | Water pollution | 1 | 0 | 4029 | 5681 |
| 602 | Combinatorial optimization | 1 | 0 | 892 | 1406 |
| 602 | Risk assessment | 1 | 0 | 1267 | 2360 |
| 602 | Neurotransmitters | 1 | 0 | 960 | 1222 |
| 602 | Drug design | 1 | 0 | 2677 | 4052 |
| 602 | Waste management | 1 | 0 | 2458 | 3667 |
| 602 | Water Purification | 1 | 0 | 2046 | 3091 |
| 602 | Neuropharmacology | 1 | 0 | 1076 | 1822 |
| 602 | Water quality management | 1 | 0 | 3027 | 4559 |
| 602 | Chromatography | 1 | 0 | 2648 | 3934 |
| 602 | Smoking | 1 | 0 | 1256 | 2091 |
| 602 | Obesity | 1 | 0 | 3099 | 4826 |
| 602 | Substance Abuse | 1 | 0 | 2260 | 3623 |
| 602 | Digital humanities | 1 | 0 | 213 | 514 |
| 602 | Holography | 3 | 0 | 94 | 258 |
| 602 | Ubiquitous computing | 2 | 0 | 397 | 1150 |
| 602 | Acoustic imaging | 3 | 0 | 94 | 258 |
| 602 | Ultrasonic Imaging | 3 | 0 | 551 | 1646 |
| 602 | drug addiction | 1 | 0 | 1766 | 2900 |
| 602 | alcoholism | 1 | 0 | 2270 | 3617 |
| 602 | Chromatographic analysis | 1 | 0 | 2995 | 4340 |