| 1 | Astrophysics | 660 | 32.1K | 233 | 314 |
| 2 | Astronomy | 758 | 28.8K | 176 | 266 |
| 3 | Spectrum analysis | 203 | 13.4K | 423 | 404 |
| 4 | Science | 156 | 11.0K | 1,225 | 1,064 |
| 5 | Chemistry | 419 | 8.8K | 869 | 1,250 |
| 6 | Physics | 191 | 8.3K | 1,307 | 1,336 |
| 7 | Biology | 164 | 7.8K | 1,070 | 1,254 |
| 8 | Biochemistry | 247 | 7.2K | 1,055 | 1,127 |
| 9 | Microbiology | 146 | 5.7K | 817 | 888 |
| 10 | Power Electronics | 92 | 5.5K | 93 | 82 |
| 11 | Nuclear Physics | 266 | 5.2K | 609 | 748 |
| 12 | Molecular Biology | 176 | 5.0K | 1,007 | 1,235 |
| 13 | Medicine | 171 | 5.0K | 1,220 | 1,355 |
| 14 | Research | 131 | 4.3K | 1,208 | 1,139 |
| 15 | Natural history | 17 | 3.7K | 1,267 | 1,096 |
| 16 | Biophysics | 123 | 3.1K | 882 | 988 |
| 17 | Ecology | 66 | 2.9K | 1,323 | 1,360 |
| 18 | Cell Biology | 61 | 2.6K | 799 | 944 |
| 19 | Biotechnology | 53 | 2.4K | 1,360 | 1,300 |
| 20 | Human genetics | 3 | 2.4K | 1,407 | 787 |
| 21 | Quantum Gravity | 131 | 2.2K | 429 | 573 |
| 22 | Marine Biology | 91 | 2.2K | 348 | 448 |
| 23 | Genomics | 42 | 2.1K | 684 | 517 |
| 24 | Organic Chemistry | 22 | 1.9K | 1,281 | 631 |
| 25 | Physiology | 57 | 1.7K | 875 | 937 |
| 26 | Immunology | 41 | 1.7K | 771 | 805 |
| 26 | gene mapping | 21 | 1.7K | 613 | 413 |
| 28 | Chromosome mapping | 20 | 1.6K | 576 | 331 |
| 29 | Water pollution | 50 | 1.6K | 552 | 687 |
| 30 | Bioorganic chemistry | 39 | 1.6K | 723 | 603 |
| 31 | Genetics | 15 | 1.6K | 1,454 | 959 |
| 32 | Neurology | 31 | 1.6K | 1,443 | 1,283 |
| 33 | Cytology | 24 | 1.6K | 1,381 | 1,182 |
| 34 | Pollution | 43 | 1.5K | 1,482 | 1,677 |
| 35 | Environment | 31 | 1.5K | 1,467 | 1,656 |
| 36 | Catalysis | 60 | 1.5K | 966 | 1,236 |
| 37 | Physical organic chemistry | 36 | 1.4K | 241 | 140 |
| 38 | Marine Pollution | 31 | 1.4K | 233 | 216 |
| 39 | Microbial Ecology | 26 | 1.3K | 667 | 717 |
| 39 | Molecular structure | 42 | 1.3K | 465 | 489 |
| 41 | Virology | 27 | 1.3K | 836 | 962 |
| 42 | Botany | 41 | 1.3K | 1,105 | 1,164 |
| 43 | Sports Medicine | 60 | 1.2K | 457 | 556 |
| 44 | environmental pollution | 32 | 1.2K | 1,352 | 1,412 |
| 45 | Endocrinology | 14 | 950 | 1,169 | 951 |
| 46 | Nanostructured Materials | 28 | 864 | 1,123 | 1,178 |
| 47 | Plant physiology | 21 | 827 | 788 | 823 |
| 48 | Geology | 49 | 816 | 789 | 948 |
| 49 | plant molecular biology | 18 | 815 | 566 | 658 |
| 50 | Geophysics | 27 | 810 | 1,202 | 1,203 |
| 51 | Environmental Health | 38 | 805 | 1,476 | 1,980 |
| 52 | Biodiversity | 16 | 804 | 858 | 689 |
| 53 | Histology | 13 | 782 | 835 | 588 |
| 54 | cell physiology | 25 | 781 | 422 | 602 |
| 55 | Nanotechnology | 21 | 776 | 1,984 | 1,931 |
| 56 | Automation | 7 | 754 | 1,511 | 846 |
| 57 | Neurophysiology | 21 | 751 | 1,037 | 1,047 |
| 58 | Materials | 19 | 736 | 2,520 | 2,178 |
| 59 | Biomedical Engineering | 24 | 707 | 1,773 | 1,751 |
| 60 | Bioengineering | 17 | 661 | 1,754 | 1,766 |
| 61 | Physical Therapy | 12 | 634 | 577 | 449 |
| 62 | Sports | 42 | 630 | 487 | 669 |
| 63 | Zoology | 38 | 623 | 663 | 747 |
| 64 | Oxidative stress | 8 | 598 | 423 | 385 |
| 65 | Cellular senescence | 7 | 589 | 95 | 129 |
| 66 | Virulence | 6 | 586 | 690 | 598 |
| 67 | Exercise | 36 | 583 | 273 | 432 |
| 68 | Inflammation | 8 | 581 | 586 | 436 |
| 69 | Plants | 15 | 580 | 884 | 869 |
| 70 | Parasitology | 21 | 572 | 829 | 730 |
| 71 | Psychology | 41 | 552 | 1,232 | 1,643 |
| 72 | Microbial Biotechnology | 10 | 530 | 369 | 226 |
| 73 | Technology | 12 | 529 | 1,872 | 1,364 |
| 74 | energy conservation | 8 | 518 | 1,268 | 1,020 |
| 75 | Critical Care | 12 | 468 | 602 | 729 |
| 75 | Critical Care Medicine | 12 | 468 | 595 | 728 |
| 77 | Medical Microbiology | 12 | 465 | 978 | 1,063 |
| 78 | electric vehicles | 7 | 457 | 165 | 94 |
| 79 | Neurobiology | 14 | 456 | 742 | 855 |
| 79 | Infections | 3 | 456 | 959 | 557 |
| 81 | Renewable Energy Sources | 4 | 450 | 2,304 | 1,769 |
| 82 | infection | 2 | 444 | 1,571 | 698 |
| 83 | Pharmacology | 17 | 443 | 2,015 | 2,110 |
| 84 | Physical Chemistry | 11 | 440 | 1,190 | 1,002 |
| 85 | ecosystem | 23 | 420 | 381 | 690 |
| 85 | language | 7 | 420 | 496 | 343 |
| 87 | Linguistics | 11 | 413 | 683 | 444 |
| 88 | Plant cells | 9 | 409 | 618 | 826 |
| 89 | Public Health | 29 | 403 | 1,566 | 2,186 |
| 90 | cytokines | 4 | 399 | 949 | 544 |
| 91 | Atmospheric Physics | 7 | 389 | 986 | 781 |
| 91 | hazard mitigation | 6 | 389 | 588 | 325 |
| 91 | natural disasters | 6 | 389 | 897 | 519 |
| 94 | Atmospheric Chemistry | 6 | 388 | 607 | 572 |
| 95 | Food Microbiology | 13 | 382 | 490 | 704 |
| 96 | Physical fitness | 18 | 381 | 336 | 481 |
| 97 | Aquaculture | 19 | 380 | 509 | 621 |
| 98 | Environmental Microbiology | 8 | 377 | 759 | 822 |
| 99 | Fisheries | 15 | 375 | 655 | 691 |
| 100 | Social Psychology | 14 | 373 | 977 | 1,072 |
| 101 | Environmental monitoring | 7 | 372 | 2,542 | 2,201 |
| 101 | Biodiversity conservation | 8 | 372 | 942 | 1,110 |
| 103 | Materials Science | 5 | 368 | 3,086 | 2,192 |
| 104 | Neurochemistry | 12 | 359 | 1,111 | 1,164 |
| 105 | Oceanography | 25 | 356 | 574 | 862 |
| 105 | Electrochemistry | 26 | 356 | 1,547 | 1,773 |
| 107 | Child welfare | 25 | 349 | 277 | 391 |
| 108 | Developmental Biology | 12 | 347 | 860 | 1,087 |
| 109 | Pediatrics | 23 | 345 | 695 | 1,127 |
| 109 | Latin America | 67 | 345 | 127 | 224 |
| 111 | Earth Sciences | 32 | 344 | 987 | 1,553 |
| 112 | Plant Genetics | 7 | 341 | 398 | 442 |
| 112 | Parasites | 12 | 341 | 739 | 639 |
| 114 | Toxicology | 15 | 336 | 2,050 | 2,387 |
| 115 | Signal Transduction | 7 | 335 | 841 | 837 |
| 115 | biological evolution | 13 | 335 | 911 | 1,215 |
| 117 | Computational Chemistry | 17 | 334 | 175 | 329 |
| 118 | Pharmaceutical Chemistry | 21 | 333 | 1,376 | 1,802 |
| 119 | Mathematical Physics | 43 | 330 | 802 | 1,212 |
| 120 | Microorganisms | 14 | 328 | 380 | 670 |
| 121 | Antarctica | 27 | 327 | 86 | 122 |
| 122 | nucleic acids | 3 | 326 | 1,368 | 1,023 |
| 123 | Genetic engineering | 11 | 325 | 975 | 1,068 |
| 124 | Growth factors | 3 | 323 | 234 | 176 |
| 124 | Cytokine | 3 | 323 | 371 | 227 |
| 126 | Nutrition | 36 | 322 | 1,098 | 2,136 |
| 127 | Industrial Microbiology | 7 | 321 | 1,229 | 1,139 |
| 128 | Psychiatry | 8 | 316 | 2,254 | 1,914 |
| 129 | Cancer | 7 | 310 | 1,651 | 1,596 |
| 130 | Oncology | 5 | 305 | 1,398 | 1,375 |
| 131 | Condensed Matter | 20 | 304 | 1,370 | 1,569 |
| 132 | Nanobiotechnology | 6 | 303 | 224 | 290 |
| 133 | Energy Policy | 3 | 296 | 2,500 | 1,836 |
| 134 | Statistical physics | 35 | 292 | 1,139 | 1,687 |
| 135 | energy resources | 2 | 291 | 1,565 | 1,094 |
| 136 | Autoimmunity | 5 | 290 | 503 | 447 |
| 137 | Environmental Policy | 9 | 283 | 1,884 | 2,136 |
| 138 | Brain | 7 | 279 | 1,520 | 1,402 |
| 139 | Geriatrics | 10 | 277 | 1,415 | 1,291 |
| 139 | Biocompatible Materials | 9 | 277 | 2,047 | 2,325 |
| 141 | Gerontology | 11 | 276 | 916 | 792 |
| 141 | Parasitic Diseases | 8 | 276 | 1,129 | 1,012 |
| 143 | Polymers | 25 | 275 | 1,763 | 2,291 |
| 144 | Pathology | 7 | 274 | 1,116 | 1,076 |
| 145 | Climate change | 4 | 273 | 813 | 1,013 |
| 145 | Eutrophication | 4 | 273 | 774 | 1,000 |
| 147 | Solid State Physics | 15 | 264 | 1,942 | 1,952 |
| 147 | Bacteriology | 6 | 264 | 1,196 | 1,190 |
| 149 | Child | 22 | 257 | 757 | 1,159 |
| 150 | Medical Laboratory Science | 4 | 254 | 1,585 | 1,307 |
| 151 | Urology | 10 | 251 | 753 | 773 |
| 152 | histological techniques | 5 | 249 | 491 | 462 |
| 153 | cell interaction | 5 | 246 | 728 | 693 |
| 154 | Informatics | 22 | 244 | 156 | 482 |
| 155 | Artificial Intelligence | 9 | 241 | 2,273 | 2,190 |
| 155 | Autoimmune diseases | 6 | 241 | 379 | 390 |
| 157 | Anatomy | 77 | 239 | 252 | 1,032 |
| 158 | Plant diseases | 10 | 237 | 1,082 | 1,048 |
| 159 | Chemical structure | 6 | 236 | 270 | 98 |
| 160 | sports injuries | 12 | 234 | 165 | 205 |
| 161 | Conservation Biology | 6 | 231 | 766 | 736 |
| 161 | Food | 8 | 231 | 1,932 | 2,028 |
| 163 | Proteomics | 9 | 226 | 545 | 710 |
| 164 | Probability | 4 | 224 | 487 | 306 |
| 164 | Risk Management | 3 | 224 | 660 | 330 |
| 164 | Financial management | 3 | 224 | 480 | 328 |
| 164 | Risk | 3 | 224 | 522 | 320 |
| 168 | viruses | 11 | 217 | 629 | 953 |
| 169 | Mental Disorders | 4 | 207 | 2,061 | 1,671 |
| 170 | polymerization | 21 | 206 | 1,622 | 2,172 |
| 171 | Education | 34 | 203 | 1,008 | 1,816 |
| 172 | Autoantibodies | 4 | 202 | 432 | 397 |
| 172 | Mental illness | 4 | 202 | 1,393 | 1,272 |
| 174 | Stem cells | 6 | 201 | 854 | 889 |
| 175 | Analytical Chemistry | 10 | 200 | 2,418 | 2,688 |
| 176 | Occupational Therapy | 9 | 199 | 503 | 307 |
| 176 | Molecular evolution | 7 | 199 | 870 | 1,083 |
| 178 | Electrical Engineering | 6 | 197 | 2,278 | 1,458 |
| 178 | Evolutionary Genetics | 6 | 197 | 374 | 336 |
| 178 | Molecular Epidemiology | 6 | 197 | 374 | 336 |
| 178 | Molecular Genetics | 7 | 197 | 1,106 | 1,321 |
| 178 | food technology | 10 | 197 | 1,405 | 1,814 |
| 183 | Sociology | 20 | 194 | 1,065 | 1,698 |
| 183 | disease vectors | 5 | 194 | 716 | 633 |
| 185 | Mycology | 13 | 191 | 711 | 1,033 |
| 186 | Surface Chemistry | 15 | 189 | 1,859 | 2,512 |
| 186 | Marine Ecology | 19 | 189 | 214 | 431 |
| 186 | Cardiovascular system | 2 | 189 | 1,239 | 1,171 |
| 189 | Neuroimmunology | 4 | 187 | 529 | 595 |
| 189 | personality | 3 | 187 | 1,414 | 1,129 |
| 189 | Aging | 9 | 187 | 1,403 | 1,480 |
| 192 | Industrial Engineering | 3 | 185 | 1,745 | 1,231 |
| 192 | Photochemistry | 18 | 185 | 583 | 1,111 |
| 192 | Neuropharmacology | 3 | 185 | 591 | 404 |
| 192 | Vaccines | 4 | 185 | 1,310 | 1,019 |
| 196 | Environmental Chemistry | 6 | 184 | 1,462 | 1,686 |
| 197 | Engineering | 8 | 182 | 2,731 | 2,416 |
| 197 | Chemical Engineering | 12 | 182 | 2,398 | 2,998 |
| 197 | Agricultural Chemistry | 5 | 182 | 1,727 | 1,603 |
| 200 | Plant breeding | 6 | 180 | 500 | 466 |
| 200 | Molecular Spectroscopy | 8 | 180 | 1,152 | 1,182 |
| 202 | Meteorology | 2 | 179 | 2,214 | 1,601 |
| 202 | soil microbiology | 6 | 179 | 981 | 1,320 |
| 202 | atmosphere | 2 | 179 | 927 | 537 |
| 205 | Phylogeny | 6 | 178 | 585 | 738 |
| 206 | Embryology | 7 | 177 | 873 | 1,048 |
| 207 | Work | 5 | 176 | 247 | 184 |
| 207 | Diabetes | 4 | 176 | 1,434 | 1,370 |
| 209 | Cell differentiation | 5 | 175 | 1,013 | 1,196 |
| 209 | Developmental Immunology | 6 | 175 | 374 | 460 |
| 211 | proteins | 12 | 174 | 941 | 1,280 |
| 212 | Obesity | 11 | 173 | 891 | 1,361 |
| 213 | polar regions | 8 | 172 | 329 | 367 |
| 214 | Contraception | 3 | 170 | 553 | 359 |
| 214 | Geodynamics | 11 | 170 | 459 | 686 |
| 216 | Fungi | 10 | 167 | 511 | 842 |
| 217 | Geochemistry | 9 | 166 | 1,127 | 1,387 |
| 218 | Social work | 8 | 160 | 801 | 745 |
| 219 | Applied Linguistics | 6 | 158 | 408 | 303 |
| 220 | Neuropsychology | 4 | 156 | 1,747 | 1,501 |
| 221 | Breeding | 5 | 154 | 880 | 860 |
| 222 | Nursing | 12 | 152 | 913 | 1,063 |
| 223 | Medical genetics | 4 | 150 | 1,580 | 1,723 |
| 223 | Forest genetics | 3 | 150 | 265 | 112 |
| 223 | Immunity | 6 | 150 | 1,070 | 1,484 |
| 226 | Wildlife conservation | 6 | 149 | 758 | 1,005 |
| 227 | Marine mammals | 4 | 147 | 199 | 153 |
| 228 | Medical Technology | 4 | 146 | 1,262 | 1,094 |
| 228 | Medical innovations | 4 | 146 | 704 | 1,021 |
| 230 | Mathematics | 26 | 145 | 2,555 | 3,159 |
| 230 | Morphology | 73 | 145 | 39 | 472 |
| 230 | Respiration | 5 | 145 | 1,012 | 1,051 |
| 233 | Diabetes mellitus | 2 | 143 | 1,806 | 1,427 |
| 234 | Colloids | 13 | 142 | 1,932 | 2,825 |
| 235 | Biogeography | 5 | 139 | 739 | 937 |
| 235 | radioactive waste | 3 | 139 | 819 | 1,022 |
| 235 | industrial waste | 3 | 139 | 851 | 1,022 |
| 235 | Hazardous waste | 3 | 139 | 956 | 1,079 |
| 239 | Birds | 13 | 138 | 524 | 672 |
| 240 | nanoscience | 5 | 137 | 2,159 | 2,310 |
| 241 | Metabolism | 6 | 136 | 1,452 | 1,851 |
| 242 | Immunopharmacology | 2 | 135 | 1,185 | 811 |
| 243 | Detectors | 2 | 134 | 1,762 | 1,143 |
| 244 | Epidemiology | 10 | 133 | 1,811 | 2,376 |
| 244 | Reproduction | 8 | 133 | 1,289 | 1,465 |
| 246 | Genetic regulation | 4 | 132 | 844 | 908 |
| 246 | Photobiology | 13 | 132 | 524 | 1,072 |
| 246 | cloning | 4 | 132 | 483 | 629 |
| 249 | Kinetics | 5 | 130 | 347 | 286 |
| 249 | Neuroplasticity | 3 | 130 | 216 | 228 |
| 249 | neuronal plasticity | 3 | 130 | 69 | 130 |
| 252 | Waste management | 4 | 129 | 1,229 | 951 |
| 253 | human behavior | 7 | 128 | 1,495 | 2,319 |
| 253 | Diet | 3 | 128 | 1,721 | 1,842 |
| 255 | Drug design | 10 | 126 | 745 | 1,239 |
| 255 | Adolescent | 8 | 126 | 1,156 | 1,449 |
| 257 | Biochemical Engineering | 4 | 125 | 2,554 | 2,920 |
| 257 | animals | 8 | 125 | 748 | 753 |
| 257 | Oxidation-reduction | 3 | 125 | 741 | 913 |
| 260 | Cell death | 2 | 123 | 1,105 | 1,096 |
| 261 | Environmental Management | 5 | 122 | 2,272 | 2,826 |
| 262 | Orthopedics | 11 | 119 | 697 | 997 |
| 262 | Enzyme inhibitors | 3 | 119 | 393 | 311 |
| 262 | rehabilitation | 12 | 119 | 978 | 1,626 |
| 265 | Organometallic compounds | 6 | 118 | 982 | 1,043 |
| 266 | Antioxidants | 2 | 116 | 835 | 829 |
| 267 | Ethnology | 3 | 114 | 1,465 | 869 |
| 268 | Environmental Engineering | 8 | 113 | 2,350 | 3,096 |
| 268 | Tropical Medicine | 1 | 113 | 2,371 | 1,241 |
| 270 | biological invasions | 3 | 112 | 611 | 560 |
| 271 | Geography | 9 | 108 | 1,150 | 1,609 |
| 271 | Kinesiology | 5 | 108 | 83 | 106 |
| 273 | School Psychology | 5 | 106 | 338 | 434 |
| 273 | South America | 14 | 106 | 30 | 29 |
| 275 | Steroids | 1 | 105 | 1,293 | 773 |
| 276 | Psychophysiology | 6 | 103 | 1,784 | 2,185 |
| 277 | Municipal Engineering | 2 | 102 | 461 | 300 |
| 277 | Electrochemical Analysis | 8 | 102 | 1,015 | 1,388 |
| 277 | Nanostructures | 3 | 102 | 1,928 | 1,834 |
| 277 | Learning | 5 | 102 | 928 | 1,072 |
| 277 | enzymes | 3 | 102 | 1,368 | 1,318 |
| 282 | Molecular cloning | 4 | 101 | 1,170 | 1,185 |
| 282 | Animal ecology | 7 | 101 | 762 | 975 |
| 282 | Genetic recombination | 4 | 101 | 1,148 | 1,176 |
| 282 | Recombinant DNA | 4 | 101 | 1,210 | 1,236 |
| 286 | peptides | 6 | 100 | 484 | 578 |
| 287 | Nervous system | 5 | 99 | 1,647 | 1,941 |
| 288 | Host-parasite interactions | 2 | 98 | 1,265 | 1,272 |
| 289 | Systems Biology | 3 | 97 | 1,336 | 1,301 |
| 289 | Transportation | 4 | 97 | 1,376 | 1,398 |
| 289 | drug resistance | 4 | 97 | 567 | 692 |
| 292 | Social Sciences | 26 | 96 | 1,057 | 2,408 |
| 293 | Surgery | 2 | 95 | 1,452 | 1,351 |
| 293 | Solid State Chemistry | 7 | 95 | 1,784 | 2,028 |
| 293 | Crystal growth | 9 | 95 | 590 | 994 |
| 293 | Evolution | 7 | 95 | 1,142 | 1,629 |
| 297 | Organometallic chemistry | 10 | 94 | 1,214 | 1,664 |
| 297 | Ornithology | 10 | 94 | 503 | 698 |
| 297 | Behavior | 5 | 94 | 2,195 | 2,916 |
| 300 | Logistics | 3 | 92 | 571 | 673 |
| 301 | Transgenic plants | 2 | 91 | 509 | 485 |
| 301 | Memory | 4 | 91 | 1,234 | 1,382 |
| 303 | Happiness | 9 | 90 | 126 | 510 |
| 303 | Quality of life | 9 | 90 | 746 | 1,447 |
| 305 | Marine invertebrates | 2 | 89 | 313 | 126 |
| 305 | Enzyme | 2 | 89 | 674 | 659 |
| 307 | Operations Research | 11 | 88 | 1,232 | 1,839 |
| 307 | Neurons | 1 | 88 | 759 | 942 |
| 309 | Bioinorganic chemistry | 7 | 87 | 942 | 1,315 |
| 310 | Dynamics | 10 | 86 | 905 | 1,218 |
| 310 | Quantum theory | 10 | 86 | 561 | 829 |
| 312 | plant communities | 2 | 85 | 1,176 | 1,207 |
| 312 | Entomology | 4 | 85 | 1,938 | 1,659 |
| 314 | biological monitoring | 1 | 84 | 896 | 552 |
| 314 | wildlife diseases | 5 | 84 | 84 | 78 |
| 316 | Plant Ecology | 2 | 83 | 1,879 | 1,825 |
| 316 | Aquatic animals | 3 | 83 | 198 | 163 |
| 316 | Dementia | 16 | 83 | 555 | 859 |
| 319 | pigments | 7 | 82 | 517 | 885 |
| 320 | Zeolites | 1 | 81 | 1,419 | 1,141 |
| 320 | Cell communication | 2 | 81 | 705 | 769 |
| 322 | Plant tissue culture | 2 | 79 | 873 | 752 |
| 322 | Plant cell culture | 2 | 79 | 786 | 742 |
| 322 | Digestive system diseases | 2 | 79 | 863 | 800 |
| 325 | Environmental pollutants | 5 | 78 | 1,743 | 2,422 |
| 325 | Europe | 5 | 78 | 2,155 | 2,252 |
| 325 | Genes | 3 | 78 | 1,053 | 1,072 |
| 328 | Rheumatology | 1 | 77 | 1,352 | 998 |
| 328 | arthritis | 1 | 77 | 1,243 | 1,109 |
| 328 | eugenics | 3 | 77 | 536 | 521 |
| 331 | Educational Technology | 5 | 76 | 1,275 | 1,636 |
| 331 | pollutants | 4 | 76 | 1,619 | 2,190 |
| 331 | cell adhesion molecules | 1 | 76 | 387 | 408 |
| 331 | natural products | 10 | 76 | 987 | 1,624 |
| 335 | Molecular Microbiology | 3 | 75 | 776 | 1,034 |
| 335 | body temperature | 4 | 75 | 430 | 536 |
| 337 | Public Policy | 5 | 74 | 1,280 | 1,787 |
| 337 | Systems Analysis | 5 | 74 | 896 | 1,076 |
| 337 | System analysis | 5 | 74 | 1,886 | 2,188 |
| 340 | Economics | 18 | 73 | 1,802 | 3,022 |
| 340 | Audiology | 4 | 73 | 618 | 700 |
| 340 | Mineralogy | 5 | 73 | 995 | 1,170 |
| 343 | Clinical Pharmacology | 2 | 72 | 1,314 | 1,166 |
| 344 | biomedicine | 2 | 71 | 634 | 681 |
| 345 | behavioral medicine | 4 | 70 | 1,029 | 1,535 |
| 345 | Growth | 2 | 70 | 1,107 | 1,272 |
| 345 | Structure-activity relationship | 2 | 70 | 315 | 301 |
| 348 | Hematopoietic stem cell transplantation | 2 | 69 | 494 | 559 |
| 348 | United States | 9 | 69 | 2,833 | 3,960 |
| 350 | Energy Conversion | 2 | 68 | 1,362 | 1,522 |
| 350 | Computational Biology | 3 | 68 | 2,252 | 2,331 |
| 350 | Biogeochemical cycles | 1 | 68 | 604 | 677 |
| 350 | Antibacterial agents | 2 | 68 | 732 | 804 |
| 354 | Archaeology | 12 | 66 | 634 | 1,058 |
| 354 | Coastal zone management | 5 | 66 | 485 | 781 |
| 354 | Marine resources | 5 | 66 | 467 | 802 |
| 357 | Mitochondria | 1 | 65 | 510 | 379 |
| 357 | Hearing | 4 | 65 | 556 | 649 |
| 359 | Serology | 2 | 64 | 627 | 588 |
| 359 | Teaching | 14 | 64 | 743 | 1,629 |
| 359 | Biomolecules | 1 | 64 | 784 | 681 |
| 359 | Alzheimer's disease | 14 | 64 | 595 | 999 |
| 363 | Mental Health | 4 | 63 | 1,304 | 1,518 |
| 363 | Mental Health Services | 5 | 63 | 833 | 1,196 |
| 365 | Nanomedicine | 1 | 61 | 510 | 408 |
| 365 | Music | 5 | 61 | 670 | 689 |
| 367 | voice | 3 | 60 | 478 | 467 |
| 368 | Luminescence | 5 | 59 | 1,103 | 1,373 |
| 368 | biological factors | 6 | 59 | 1,336 | 2,018 |
| 370 | Hydrology | 3 | 58 | 2,278 | 2,389 |
| 370 | Herbal medicine | 2 | 58 | 911 | 1,146 |
| 370 | Bioinformatics | 2 | 58 | 2,169 | 2,008 |
| 370 | Seaweed | 3 | 58 | 541 | 717 |
| 374 | Marine Biotechnology | 2 | 57 | 296 | 364 |
| 374 | Sleep Disorders | 2 | 57 | 1,481 | 1,375 |
| 374 | Immunochemistry | 3 | 57 | 919 | 1,002 |
| 374 | Sleep | 2 | 57 | 1,517 | 1,398 |
| 378 | Nanoparticles | 6 | 55 | 1,367 | 2,094 |
| 378 | philology | 19 | 55 | 149 | 99 |
| 378 | child abuse | 5 | 55 | 595 | 1,031 |
| 381 | Combustion | 1 | 54 | 1,720 | 1,375 |
| 382 | Petrology | 3 | 53 | 865 | 1,022 |
| 382 | Infection control | 1 | 53 | 626 | 501 |
| 382 | sanitation | 5 | 53 | 1,132 | 2,098 |
| 382 | Carbon | 2 | 53 | 1,444 | 1,781 |
| 382 | Light | 5 | 53 | 691 | 1,189 |
| 387 | Clinical Psychology | 3 | 52 | 1,093 | 1,336 |
| 387 | Health Policy | 3 | 52 | 1,937 | 2,116 |
| 387 | Psychoneuroimmunology | 2 | 52 | 684 | 900 |
| 387 | Metallurgy | 2 | 52 | 2,321 | 2,019 |
| 387 | Nonlinear Dynamics | 3 | 52 | 1,769 | 1,875 |
| 387 | Drug delivery systems | 3 | 52 | 1,513 | 1,858 |
| 387 | Entropy | 9 | 52 | 575 | 1,199 |
| 394 | Energy Storage | 2 | 51 | 1,473 | 1,513 |
| 394 | Quantum Chemistry | 2 | 51 | 204 | 219 |
| 394 | Geomagnetism | 2 | 51 | 670 | 671 |
| 394 | Water | 4 | 51 | 1,991 | 2,903 |
| 394 | mammals | 6 | 51 | 680 | 1,047 |
| 399 | Clinical Immunology | 2 | 50 | 1,022 | 1,134 |
| 399 | Psychopharmacology | 1 | 50 | 1,776 | 1,557 |
| 399 | Analytical Biochemistry | 3 | 50 | 1,645 | 1,846 |
| 399 | Neuroanatomy | 1 | 50 | 483 | 349 |
| 403 | Veterinary Immunology | 3 | 49 | 321 | 421 |
| 403 | breastfeeding | 1 | 49 | 852 | 633 |
| 403 | glycoproteins | 1 | 49 | 693 | 635 |
| 403 | Glycoconjugates | 1 | 49 | 693 | 635 |
| 403 | Oligosaccharide | 1 | 49 | 499 | 471 |
| 403 | Carbohydrates | 1 | 49 | 698 | 590 |
| 403 | glycolipids | 1 | 49 | 693 | 635 |
| 410 | Animal Behavior | 7 | 48 | 1,180 | 2,111 |
| 410 | Forest Ecology | 3 | 48 | 966 | 1,323 |
| 410 | Computer-Aided Design | 5 | 48 | 923 | 1,383 |
| 410 | Forest Management | 3 | 48 | 939 | 1,253 |
| 410 | food industry | 6 | 48 | 434 | 944 |
| 410 | Trace elements | 1 | 48 | 535 | 501 |
| 416 | Philosophy | 15 | 47 | 751 | 959 |
| 416 | Lipid metabolism | 2 | 47 | 506 | 666 |
| 416 | Fish diseases | 2 | 47 | 148 | 172 |
| 416 | Lipids | 2 | 47 | 1,402 | 1,605 |
| 416 | Invertebrates | 2 | 47 | 757 | 765 |
| 416 | Lipid | 2 | 47 | 508 | 668 |
| 416 | anesthesia | 2 | 47 | 610 | 432 |
| 423 | management | 4 | 46 | 2,885 | 3,571 |
| 423 | Extreme environments | 1 | 46 | 441 | 449 |
| 425 | Anti-inflammatory agents | 2 | 45 | 332 | 367 |
| 425 | Social welfare | 1 | 45 | 992 | 666 |
| 425 | Cosmochemistry | 3 | 45 | 858 | 1,162 |
| 425 | Astrocytes | 1 | 45 | 652 | 734 |
| 425 | chromatin | 2 | 45 | 160 | 274 |
| 425 | Aquatic ecology | 4 | 45 | 825 | 1,094 |
| 431 | Geriatric Psychiatry | 4 | 44 | 744 | 1,168 |
| 431 | Comparative Physiology | 4 | 44 | 663 | 1,023 |
| 431 | Signal Processing | 1 | 44 | 3,036 | 2,626 |
| 431 | Solar Energy | 2 | 44 | 2,006 | 2,353 |
| 431 | Ethology | 5 | 44 | 1,085 | 1,861 |
| 431 | Energy Harvesting | 1 | 44 | 672 | 832 |
| 431 | Bacterial diseases | 2 | 44 | 353 | 463 |
| 438 | Thermodynamics | 1 | 43 | 1,898 | 1,180 |
| 438 | Hydraulic Engineering | 1 | 43 | 1,291 | 1,003 |
| 438 | Thermochemistry | 1 | 43 | 772 | 634 |
| 438 | violence | 2 | 43 | 1,154 | 1,241 |
| 442 | Paleontology | 7 | 42 | 851 | 1,334 |
| 442 | Constitutional Law | 17 | 42 | 29 | 58 |
| 442 | Language Disorders | 3 | 42 | 792 | 935 |
| 442 | Microcirculation | 1 | 42 | 725 | 646 |
| 442 | Blood vessels | 1 | 42 | 628 | 549 |
| 447 | Horticulture | 1 | 41 | 1,243 | 925 |
| 447 | Pharmaceutical Technology | 1 | 41 | 1,998 | 1,885 |
| 447 | Psycholinguistics | 2 | 41 | 1,065 | 1,164 |
| 447 | Cytogenetics | 1 | 41 | 1,672 | 1,608 |
| 447 | Educational Psychology | 7 | 41 | 907 | 1,659 |
| 447 | Writing | 2 | 41 | 374 | 454 |
| 447 | vascular diseases | 1 | 41 | 932 | 987 |
| 447 | Reading | 2 | 41 | 693 | 748 |
| 447 | city planning | 7 | 41 | 1,006 | 1,894 |
| 456 | Fluid Mechanics | 2 | 40 | 1,700 | 1,623 |
| 456 | Andrology | 2 | 40 | 663 | 741 |
| 456 | Melanoma | 1 | 40 | 336 | 337 |
| 456 | Mass Media | 1 | 40 | 1,342 | 669 |
| 456 | Social Media | 1 | 40 | 224 | 165 |
| 456 | Androgens | 2 | 40 | 262 | 375 |
| 462 | Community Psychology | 3 | 39 | 544 | 748 |
| 462 | Neurotoxicology | 3 | 39 | 559 | 1,001 |
| 462 | Apoptosis | 3 | 39 | 245 | 538 |
| 462 | neurotoxins | 3 | 39 | 245 | 538 |
| 462 | Neurotoxic agents | 3 | 39 | 245 | 538 |
| 462 | Nerve regeneration | 3 | 39 | 245 | 538 |
| 468 | Adolescent Medicine | 1 | 38 | 851 | 911 |
| 468 | Social policy | 2 | 38 | 1,256 | 1,226 |
| 468 | musculoskeletal system | 1 | 38 | 274 | 253 |
| 468 | Immune system | 2 | 38 | 954 | 1,230 |
| 472 | Electronics | 3 | 37 | 2,961 | 3,037 |
| 472 | Histochemistry | 1 | 37 | 1,461 | 1,214 |
| 472 | Sites | 1 | 37 | 844 | 868 |
| 475 | Law | 23 | 36 | 365 | 952 |
| 475 | Information Technology | 3 | 36 | 2,466 | 2,879 |
| 475 | Functional Analysis | 4 | 36 | 1,225 | 1,419 |
| 475 | Graph Theory | 7 | 36 | 456 | 654 |
| 475 | Freshwater Ecology | 1 | 36 | 584 | 312 |
| 475 | Tourism | 3 | 36 | 1,653 | 2,323 |
| 475 | Infertility | 2 | 36 | 825 | 1,117 |
| 475 | innovation | 2 | 36 | 755 | 1,086 |
| 475 | Electroconvulsive therapy | 2 | 36 | 139 | 170 |
| 475 | fertility | 2 | 36 | 909 | 1,181 |
| 485 | Humanities | 15 | 35 | 605 | 1,962 |
| 485 | Information Science | 2 | 35 | 2,942 | 3,133 |
| 487 | Architecture | 33 | 34 | 65 | 583 |
| 487 | Geometry | 5 | 34 | 956 | 1,035 |
| 487 | Population Genetics | 2 | 34 | 1,276 | 1,709 |
| 487 | Dendrochronology | 1 | 34 | 75 | 47 |
| 487 | Schizophrenia | 1 | 34 | 1,217 | 1,226 |
| 487 | environmental protection | 2 | 34 | 3,757 | 4,259 |
| 487 | Behavioral research | 3 | 34 | 624 | 842 |
| 487 | Exercise therapy | 4 | 34 | 359 | 610 |
| 487 | Crystallography | 16 | 34 | 724 | 1,367 |
| 487 | Proteome | 1 | 34 | 1,441 | 1,533 |
| 497 | Hematology | 1 | 33 | 2,107 | 1,992 |
| 497 | Soil Mechanics | 2 | 33 | 1,190 | 1,339 |
| 497 | Molecules | 4 | 33 | 1,347 | 1,583 |
| 497 | Therapeutics | 6 | 33 | 1,018 | 1,939 |
| 497 | humor | 2 | 33 | 20 | 14 |
| 502 | Bryology | 1 | 32 | 348 | 231 |
| 502 | Biogeochemistry | 2 | 32 | 1,195 | 1,625 |
| 502 | intergroup relations | 2 | 32 | 244 | 393 |
| 502 | bryophytes | 1 | 32 | 192 | 124 |
| 506 | Ecological Genetics | 1 | 31 | 1,083 | 888 |
| 506 | Nutrition physiology | 2 | 31 | 878 | 1,194 |
| 506 | Chromatography | 1 | 31 | 2,198 | 2,011 |
| 506 | psychopathology | 1 | 31 | 470 | 479 |
| 506 | technical education | 1 | 31 | 1,147 | 932 |
| 506 | Chromatographic analysis | 1 | 31 | 2,456 | 2,157 |
| 506 | Aggression | 1 | 31 | 813 | 842 |
| 506 | Marine algae | 1 | 31 | 253 | 225 |
| 514 | food contamination | 1 | 30 | 1,746 | 1,490 |
| 514 | Mycotoxins | 1 | 30 | 285 | 267 |
| 514 | transport vesicles | 2 | 30 | 287 | 609 |
| 514 | India | 2 | 30 | 1,916 | 1,505 |
| 518 | Nutritional support | 1 | 29 | 296 | 368 |
| 518 | Water quality management | 3 | 29 | 1,832 | 2,398 |
| 520 | History | 25 | 28 | 276 | 615 |
| 520 | Computer Graphics | 3 | 28 | 1,648 | 2,099 |
| 520 | RNA | 1 | 28 | 774 | 864 |
| 523 | Water Purification | 2 | 27 | 1,408 | 1,662 |
| 523 | clay | 2 | 27 | 998 | 1,510 |
| 523 | Algae | 2 | 27 | 832 | 1,062 |
| 526 | Marine biodiversity | 3 | 26 | 217 | 304 |
| 526 | Wildlife management | 2 | 26 | 698 | 789 |
| 526 | Radioisotopes | 1 | 26 | 1,606 | 1,271 |
| 526 | genome | 2 | 26 | 1,554 | 2,102 |
| 526 | Isotopes | 1 | 26 | 254 | 207 |
| 531 | Dentistry | 4 | 25 | 611 | 831 |
| 531 | Agricultural Engineering | 1 | 25 | 767 | 805 |
| 531 | Paleoclimatology | 2 | 25 | 1,185 | 1,538 |
| 531 | Paleoecology | 2 | 25 | 1,166 | 1,476 |
| 531 | Plant Morphology | 2 | 25 | 767 | 966 |
| 531 | Paleogeography | 2 | 25 | 1,059 | 1,354 |
| 531 | Chemical kinetics | 1 | 25 | 1,300 | 969 |
| 531 | Pesticides | 1 | 25 | 1,155 | 1,135 |
| 531 | Mineral resources | 3 | 25 | 641 | 1,330 |
| 531 | movement | 2 | 25 | 428 | 682 |
| 531 | Social behavior | 3 | 25 | 1,134 | 1,687 |
| 542 | Educational Sociology | 3 | 24 | 375 | 611 |
| 542 | pain management | 1 | 24 | 897 | 882 |
| 542 | Child psychology | 2 | 24 | 1,526 | 1,981 |
| 542 | pain | 1 | 24 | 1,664 | 1,738 |
| 542 | sports equipment | 1 | 24 | 125 | 61 |
| 547 | Civil Engineering | 2 | 23 | 1,768 | 1,730 |
| 547 | Health Services Administration | 3 | 23 | 993 | 1,612 |
| 547 | Latin American Literature | 28 | 23 | 13 | 32 |
| 547 | civilization | 8 | 23 | 630 | 725 |
| 547 | curriculum evaluation | 1 | 23 | 702 | 692 |
| 547 | Osteoporosis | 1 | 23 | 613 | 632 |
| 547 | Arthropods | 1 | 23 | 520 | 477 |
| 547 | indoor air pollution | 1 | 23 | 698 | 774 |
| 547 | environmental exposure | 1 | 23 | 2,700 | 2,963 |
| 547 | Ventilation | 1 | 23 | 920 | 907 |
| 547 | animal diseases | 1 | 23 | 842 | 878 |
| 547 | Sick building syndrome | 1 | 23 | 698 | 774 |
| 547 | Planets | 1 | 23 | 1,785 | 2,009 |
| 547 | Insects | 1 | 23 | 2,054 | 1,813 |
| 547 | freshwater biology | 2 | 23 | 1,123 | 1,480 |
| 562 | Gender Studies | 2 | 22 | 684 | 888 |
| 562 | Political Sociology | 4 | 22 | 390 | 694 |
| 562 | Oral Medicine | 3 | 22 | 748 | 1,074 |
| 562 | Immunopathology | 2 | 22 | 1,098 | 1,530 |
| 562 | Functional Genomics | 1 | 22 | 449 | 610 |
| 562 | Allergy | 1 | 22 | 1,241 | 1,421 |
| 562 | Argentina | 3 | 22 | 40 | 71 |
| 569 | Nuclear Engineering | 2 | 21 | 1,603 | 1,708 |
| 569 | Nuclear Energy | 2 | 21 | 1,166 | 1,256 |
| 569 | Food Safety | 1 | 21 | 609 | 619 |
| 569 | Electromagnetism | 1 | 21 | 1,492 | 1,422 |
| 569 | Discrete geometry | 1 | 21 | 445 | 368 |
| 569 | complementary therapies | 2 | 21 | 2,022 | 2,709 |
| 569 | Magnetic Materials | 1 | 21 | 2,006 | 2,003 |
| 569 | supercritical fluids | 1 | 21 | 686 | 848 |
| 577 | Molecular Pharmacology | 1 | 20 | 1,164 | 1,451 |
| 577 | Hemophilia | 1 | 20 | 519 | 534 |
| 577 | mathematical analysis | 3 | 20 | 2,357 | 2,532 |
| 577 | miniaturization | 1 | 20 | 2,437 | 2,667 |
| 577 | Bones | 1 | 20 | 970 | 1,202 |
| 582 | Political Science | 6 | 19 | 1,218 | 1,821 |
| 582 | Public opinion | 2 | 19 | 519 | 772 |
| 582 | Student Health Services | 1 | 19 | 493 | 565 |
| 582 | health services | 1 | 19 | 1,631 | 1,680 |
| 582 | amino acids | 1 | 19 | 982 | 1,166 |
| 582 | Educational evaluation | 4 | 19 | 130 | 345 |
| 588 | Neuropsychiatry | 1 | 18 | 1,118 | 1,232 |
| 588 | Architectural Design | 1 | 18 | 867 | 771 |
| 590 | Pharmacognosy | 1 | 17 | 2,529 | 2,920 |
| 590 | Marine Geology | 1 | 17 | 924 | 1,002 |
| 590 | Economic Development | 3 | 17 | 1,522 | 2,412 |
| 590 | Petroleum Geology | 1 | 17 | 750 | 863 |
| 590 | protein | 3 | 17 | 1,109 | 1,686 |
| 590 | Safety management | 1 | 17 | 1,185 | 1,184 |
| 590 | ethanol | 1 | 17 | 806 | 898 |
| 590 | cryosphere | 1 | 17 | 542 | 699 |
| 590 | alcoholism | 1 | 17 | 1,837 | 2,047 |
| 590 | biological agents | 4 | 17 | 599 | 768 |
| 590 | Mollusks | 4 | 17 | 162 | 379 |
| 601 | Geomorphology | 1 | 16 | 1,867 | 2,227 |
| 601 | Human Capital | 1 | 16 | 491 | 631 |
| 601 | Animal welfare | 1 | 16 | 523 | 651 |
| 601 | Plant hormones | 1 | 16 | 599 | 816 |
| 601 | Pacific Islands | 2 | 16 | 417 | 569 |
| 601 | medical education | 2 | 16 | 1,873 | 2,470 |
| 601 | Yeast | 1 | 16 | 694 | 875 |
| 601 | California | 1 | 16 | 607 | 660 |
| 601 | public opinion polls | 1 | 16 | 210 | 202 |
| 610 | Immunotherapy | 1 | 15 | 2,152 | 2,592 |
| 610 | Environmental Geology | 1 | 15 | 2,351 | 2,631 |
| 610 | adolescence | 2 | 15 | 1,085 | 1,632 |
| 610 | Telecommunication | 2 | 15 | 2,806 | 3,273 |
| 610 | Product life cycle | 2 | 15 | 372 | 731 |
| 610 | green products | 2 | 15 | 328 | 664 |
| 610 | prostaglandins | 1 | 15 | 633 | 771 |
| 610 | school psychologists | 1 | 15 | 353 | 493 |
| 618 | Literature | 8 | 14 | 454 | 451 |
| 618 | Cybernetics | 1 | 14 | 2,231 | 2,469 |
| 618 | Ergonomics | 1 | 14 | 1,385 | 1,516 |
| 618 | Information Systems | 2 | 14 | 1,688 | 2,441 |
| 618 | Optics | 5 | 14 | 3,026 | 4,119 |
| 618 | Higher Education | 2 | 14 | 787 | 1,170 |
| 618 | Urban Policy | 2 | 14 | 1,069 | 1,719 |
| 618 | Industrial Safety | 4 | 14 | 1,036 | 1,994 |
| 618 | Welfare Economics | 1 | 14 | 679 | 727 |
| 618 | Surface-Active Agents | 1 | 14 | 1,733 | 2,214 |
| 618 | Composite Materials | 1 | 14 | 3,116 | 3,499 |
| 618 | Socialism | 1 | 14 | 360 | 337 |
| 618 | Randomized Controlled Trials | 1 | 14 | 1,394 | 1,511 |
| 618 | Magnetic Resonance Spectroscopy | 1 | 14 | 1,474 | 1,508 |
| 618 | nuclear magnetic resonance spectroscopy | 1 | 14 | 1,039 | 1,071 |
| 618 | Surface properties | 1 | 14 | 1,779 | 2,262 |
| 618 | NMR | 1 | 14 | 861 | 885 |
| 618 | tests | 2 | 14 | 249 | 551 |
| 618 | Spain | 5 | 14 | 302 | 346 |
| 618 | magnetic resonance | 1 | 14 | 874 | 899 |
| 618 | Nitric oxide | 1 | 14 | 519 | 763 |
| 618 | motor skills | 1 | 14 | 417 | 479 |
| 640 | Anthropology | 3 | 13 | 1,466 | 2,064 |
| 640 | Process Control | 1 | 13 | 1,480 | 1,899 |
| 640 | Rock deformation | 2 | 13 | 261 | 546 |
| 640 | preventive medicine | 1 | 13 | 1,649 | 1,972 |
| 640 | Alternative Medicine | 1 | 13 | 2,330 | 2,784 |
| 640 | Learning disabilities | 2 | 13 | 985 | 1,415 |
| 640 | Production Management | 1 | 13 | 1,738 | 2,143 |
| 640 | Molecular ecology | 2 | 13 | 1,129 | 1,967 |
| 640 | school environment | 3 | 13 | 87 | 320 |
| 640 | free radicals | 2 | 13 | 1,366 | 2,141 |
| 640 | Youth | 2 | 13 | 805 | 1,347 |
| 640 | disaster relief | 1 | 13 | 433 | 596 |
| 640 | synthesis | 1 | 13 | 1,658 | 1,691 |
| 640 | Cognition | 2 | 13 | 1,831 | 2,528 |
| 654 | Transportation Engineering | 1 | 12 | 529 | 691 |
| 654 | Environmental Toxicology | 3 | 12 | 2,292 | 3,787 |
| 654 | Health Services Research | 3 | 12 | 1,472 | 2,620 |
| 654 | Community Psychiatry | 1 | 12 | 1,398 | 1,826 |
| 654 | Fishery management | 3 | 12 | 826 | 1,485 |
| 654 | Taste | 1 | 12 | 588 | 793 |
| 654 | smell | 1 | 12 | 588 | 793 |
| 654 | Bacterial infections | 1 | 12 | 1,184 | 1,581 |
| 654 | Food preferences | 1 | 12 | 679 | 911 |
| 654 | Intellectual disability | 2 | 12 | 910 | 1,389 |
| 654 | Spanish language | 4 | 12 | 67 | 77 |
| 654 | Psychiatric hospitals | 1 | 12 | 422 | 526 |
| 654 | sex crimes | 1 | 12 | 1,024 | 1,295 |
| 667 | Metabolic diseases | 1 | 11 | 2,322 | 2,859 |
| 667 | Technological Innovations | 3 | 11 | 1,080 | 2,170 |
| 667 | Second Language Acquisition | 1 | 11 | 377 | 559 |
| 667 | motivation | 1 | 11 | 665 | 907 |
| 667 | International Education | 1 | 11 | 505 | 689 |
| 667 | Volcanoes | 1 | 11 | 466 | 604 |
| 667 | Combinatorial analysis | 4 | 11 | 911 | 1,302 |
| 667 | Ore deposits | 2 | 11 | 621 | 931 |
| 667 | computer networks | 1 | 11 | 3,071 | 3,412 |
| 676 | Building Materials | 1 | 10 | 2,208 | 2,696 |
| 676 | Plant Pathology | 1 | 10 | 284 | 376 |
| 676 | History of Medicine | 1 | 10 | 748 | 539 |
| 676 | Health Education | 4 | 10 | 1,503 | 2,878 |
| 676 | Ichthyology | 2 | 10 | 628 | 893 |
| 676 | Wireless Communication Systems | 1 | 10 | 2,962 | 3,199 |
| 676 | Critical Discourse Analysis | 1 | 10 | 117 | 207 |
| 676 | Bioacoustics | 1 | 10 | 201 | 289 |
| 676 | Electron Microscopy | 1 | 10 | 653 | 781 |
| 676 | preimplantation genetic diagnosis | 1 | 10 | 670 | 925 |
| 676 | embryo transfer | 1 | 10 | 683 | 945 |
| 676 | Information society | 1 | 10 | 356 | 547 |
| 676 | Decision making | 2 | 10 | 1,729 | 2,641 |
| 676 | health planning | 4 | 10 | 1,928 | 3,546 |
| 676 | traffic safety | 3 | 10 | 290 | 763 |
| 676 | Human biology | 2 | 10 | 786 | 1,285 |
| 676 | Fish | 2 | 10 | 480 | 762 |
| 693 | Public Health Administration | 1 | 9 | 712 | 802 |
| 693 | Restoration Ecology | 1 | 9 | 749 | 1,009 |
| 693 | Health insurance | 2 | 9 | 508 | 959 |
| 693 | actuators | 1 | 9 | 2,751 | 3,301 |
| 693 | disabilities | 1 | 9 | 1,094 | 1,434 |
| 693 | Japan | 2 | 9 | 2,123 | 2,908 |
| 693 | finance | 3 | 9 | 2,281 | 3,332 |
| 693 | transducers | 1 | 9 | 2,751 | 3,301 |
| 701 | Database Management | 1 | 8 | 1,134 | 1,420 |
| 701 | Civil Law | 9 | 8 | 7 | 25 |
| 701 | Veterinary Pathology | 1 | 8 | 564 | 699 |
| 701 | Agricultural Ecology | 1 | 8 | 1,597 | 2,230 |
| 701 | Demography | 1 | 8 | 1,031 | 1,292 |
| 701 | Regional Planning | 4 | 8 | 1,252 | 2,546 |
| 701 | Hemostasis | 1 | 8 | 940 | 1,157 |
| 701 | Animal breeding | 1 | 8 | 1,119 | 1,435 |
| 701 | Thrombosis | 1 | 8 | 1,215 | 1,556 |
| 701 | Crystallization | 2 | 8 | 614 | 894 |
| 701 | Metabolic syndrome | 2 | 8 | 358 | 888 |
| 701 | urban health | 1 | 8 | 459 | 742 |
| 701 | economic policy | 2 | 8 | 2,609 | 3,263 |
| 701 | Environmental Geochemistry | 1 | 8 | 1,128 | 1,612 |
| 701 | Diagnostic microbiology | 1 | 8 | 1,333 | 1,831 |
| 701 | Religion and Psychology | 1 | 8 | 1,042 | 1,248 |
| 701 | Public Finance | 1 | 8 | 387 | 458 |
| 701 | mycoses | 2 | 8 | 870 | 1,463 |
| 701 | Family | 1 | 8 | 1,502 | 1,899 |
| 701 | families | 1 | 8 | 1,378 | 1,602 |
| 701 | drug therapy | 1 | 8 | 2,154 | 2,690 |
| 701 | commerce | 1 | 8 | 2,404 | 2,796 |
| 701 | electrocatalysis | 1 | 8 | 249 | 436 |
| 701 | Minerals | 1 | 8 | 1,427 | 1,915 |
| 701 | recreation | 3 | 8 | 689 | 1,288 |
| 701 | Agriculture | 1 | 8 | 3,022 | 3,525 |
| 727 | Intelligent Transportation Systems | 1 | 7 | 1,636 | 2,092 |
| 727 | Political Psychology | 1 | 7 | 574 | 844 |
| 727 | Communication and Culture | 1 | 7 | 517 | 672 |
| 727 | Drug targeting | 1 | 7 | 593 | 968 |
| 727 | Biomechanics | 2 | 7 | 1,469 | 2,335 |
| 727 | Fracture mechanics | 1 | 7 | 1,823 | 2,229 |
| 727 | Medical Anthropology | 1 | 7 | 1,723 | 2,393 |
| 727 | Marriage | 2 | 7 | 635 | 1,213 |
| 727 | Genetic variation | 1 | 7 | 257 | 481 |
| 727 | Social Change | 1 | 7 | 1,667 | 2,307 |
| 727 | Business | 2 | 7 | 2,454 | 3,584 |
| 727 | Developmental Disabilities | 1 | 7 | 1,383 | 1,900 |
| 727 | consumers | 1 | 7 | 753 | 1,052 |
| 727 | Social interaction | 1 | 7 | 616 | 900 |
| 727 | paraphilias | 2 | 7 | 231 | 536 |
| 727 | Social problems | 1 | 7 | 1,000 | 1,352 |
| 727 | China | 1 | 7 | 3,740 | 4,411 |
| 727 | psychotherapy | 2 | 7 | 1,402 | 2,037 |
| 727 | probabilities | 5 | 7 | 1,074 | 1,814 |
| 727 | Marriage counseling | 2 | 7 | 379 | 761 |
| 727 | drug evaluation | 1 | 7 | 1,768 | 2,323 |
| 748 | Geriatric Nursing | 3 | 6 | 547 | 1,239 |
| 748 | Neurogenetics | 1 | 6 | 585 | 789 |
| 748 | Econometrics | 2 | 6 | 1,582 | 2,178 |
| 748 | Medical Sociology | 1 | 6 | 101 | 226 |
| 748 | Earthquake Engineering | 2 | 6 | 1,443 | 2,125 |
| 748 | Engineering Geology | 2 | 6 | 1,547 | 2,317 |
| 748 | Differential Equations | 2 | 6 | 1,260 | 1,690 |
| 748 | Animal health | 1 | 6 | 804 | 1,018 |
| 748 | Quantitative Research | 1 | 6 | 375 | 590 |
| 748 | Health | 2 | 6 | 2,347 | 3,705 |
| 748 | Enteral nutrition | 1 | 6 | 1,117 | 1,571 |
| 748 | Parenteral nutrition | 1 | 6 | 1,255 | 1,724 |
| 748 | older people | 2 | 6 | 1,698 | 2,342 |
| 748 | Fuzzy systems | 2 | 6 | 2,036 | 2,861 |
| 762 | Cognitive Psychology | 1 | 5 | 759 | 955 |
| 762 | Phenomenology | 1 | 5 | 485 | 480 |
| 762 | Occupational Health | 3 | 5 | 1,025 | 2,104 |
| 762 | Philosophy of Mind | 1 | 5 | 511 | 658 |
| 762 | Manufacturing Processes | 1 | 5 | 2,859 | 3,436 |
| 762 | Production Engineering | 1 | 5 | 2,616 | 3,162 |
| 762 | Labor Economics | 2 | 5 | 625 | 1,062 |
| 762 | Long-Term Care | 1 | 5 | 784 | 1,180 |
| 762 | industrial hygiene | 3 | 5 | 1,017 | 2,047 |
| 762 | Long-term care facilities | 1 | 5 | 777 | 1,170 |
| 762 | Cognitive Science | 1 | 5 | 2,288 | 3,042 |
| 762 | Chemical analysis | 1 | 5 | 1,599 | 2,183 |
| 762 | Sedimentary rocks | 1 | 5 | 938 | 1,267 |
| 762 | Developing countries | 4 | 5 | 1,972 | 4,026 |
| 762 | Mites | 1 | 5 | 726 | 993 |
| 762 | Gastrointestinal diseases | 1 | 5 | 968 | 1,263 |
| 778 | Urban Planning | 1 | 4 | 698 | 1,085 |
| 778 | Municipal Law | 8 | 4 | 33 | 97 |
| 778 | Cosmology | 2 | 4 | 750 | 1,184 |
| 778 | Pharmacogenetics | 1 | 4 | 1,221 | 1,731 |
| 778 | Hypertension | 1 | 4 | 1,640 | 2,245 |
| 778 | Number Theory | 1 | 4 | 1,277 | 1,458 |
| 778 | Adolescent Psychology | 1 | 4 | 1,265 | 1,817 |
| 778 | Urbanization | 1 | 4 | 412 | 695 |
| 778 | Biomarkers | 1 | 4 | 755 | 1,168 |
| 778 | gene therapy | 1 | 4 | 1,236 | 1,775 |
| 778 | visualization | 2 | 4 | 1,591 | 2,076 |
| 778 | Asia | 1 | 4 | 4,081 | 4,751 |
| 778 | Genetic therapy | 1 | 4 | 1,239 | 1,752 |
| 778 | biochemical markers | 1 | 4 | 1,036 | 1,560 |
| 778 | Culture | 1 | 4 | 1,722 | 2,033 |
| 778 | coal | 1 | 4 | 2,219 | 2,922 |
| 778 | women | 2 | 4 | 1,106 | 1,817 |
| 778 | Autism | 1 | 4 | 1,008 | 1,495 |
| 778 | autism spectrum disorder | 1 | 4 | 141 | 333 |
| 797 | Ethics | 1 | 3 | 1,540 | 2,147 |
| 797 | Engineering Mathematics | 1 | 3 | 2,704 | 3,159 |
| 797 | Regional Economics | 1 | 3 | 819 | 1,256 |
| 797 | Psychosomatic Medicine | 2 | 3 | 831 | 1,643 |
| 797 | Aesthetics | 4 | 3 | 142 | 374 |
| 797 | Psychoanalysis | 1 | 3 | 575 | 640 |
| 797 | Mass Spectrometry | 1 | 3 | 1,549 | 2,099 |
| 797 | Folklore | 4 | 3 | 69 | 133 |
| 797 | Political Parties | 1 | 3 | 368 | 554 |
| 797 | Herpetology | 1 | 3 | 645 | 910 |
| 797 | Labor Unions | 1 | 3 | 540 | 743 |
| 797 | Qualitative Research | 1 | 3 | 888 | 1,369 |
| 797 | Solitons | 1 | 3 | 1,866 | 2,435 |
| 797 | Fractals | 1 | 3 | 1,876 | 2,440 |
| 797 | Erosion | 1 | 3 | 243 | 600 |
| 797 | Chaos | 1 | 3 | 1,866 | 2,435 |
| 797 | Language Arts | 1 | 3 | 234 | 393 |
| 797 | Communication | 1 | 3 | 2,941 | 3,660 |
| 797 | industrial relations | 1 | 3 | 1,340 | 1,830 |
| 797 | Ion channels | 1 | 3 | 217 | 386 |
| 797 | Elections | 1 | 3 | 547 | 768 |
| 797 | Amphibians | 1 | 3 | 499 | 732 |
| 797 | Reptiles | 1 | 3 | 535 | 819 |
| 797 | lasers | 2 | 3 | 2,339 | 3,376 |
| 797 | econometric models | 1 | 3 | 1,109 | 1,555 |
| 822 | Sustainable Development | 1 | 2 | 3,134 | 4,354 |
| 822 | Embedded Systems | 1 | 2 | 361 | 569 |
| 822 | Intercultural Communication | 1 | 2 | 836 | 1,352 |
| 822 | Numerical Analysis | 2 | 2 | 2,643 | 3,762 |
| 822 | International Law | 2 | 2 | 500 | 668 |
| 822 | Religion | 1 | 2 | 1,394 | 1,508 |
| 822 | Cross-Cultural Studies | 1 | 2 | 1,279 | 2,014 |
| 822 | nuclear astrophysics | 1 | 2 | 744 | 1,016 |
| 822 | Well-being | 1 | 2 | 333 | 685 |
| 822 | Cognitive Therapy | 1 | 2 | 993 | 1,535 |
| 822 | dietary supplements | 1 | 2 | 1,448 | 2,235 |
| 822 | water resources | 1 | 2 | 367 | 521 |
| 822 | International Finance | 1 | 2 | 2,241 | 2,935 |
| 822 | natural history museums | 2 | 2 | 74 | 203 |
| 822 | Elderly | 1 | 2 | 1,727 | 1,858 |
| 822 | sects | 1 | 2 | 205 | 94 |
| 822 | Transport | 1 | 2 | 949 | 1,482 |
| 822 | Health promotion | 1 | 2 | 1,740 | 2,469 |
| 822 | Sea | 1 | 2 | 847 | 1,345 |
| 822 | feeding behavior | 1 | 2 | 1,101 | 1,699 |
| 822 | Fishery resources | 1 | 2 | 935 | 1,462 |
| 822 | thinking | 1 | 2 | 647 | 1,122 |
| 822 | Comparative Law | 1 | 2 | 483 | 494 |
| 822 | Approximation Theory | 1 | 2 | 720 | 965 |
| 822 | Written communication | 2 | 2 | 131 | 394 |
| 822 | planning | 1 | 2 | 1,351 | 2,064 |
| 822 | Creativity | 1 | 2 | 673 | 1,206 |
| 822 | drug toxicity | 1 | 2 | 948 | 1,614 |
| 822 | cults | 1 | 2 | 205 | 94 |
| 822 | Appetite | 1 | 2 | 988 | 1,555 |
| 852 | Pharmacy | 1 | 1 | 2,559 | 3,493 |
| 852 | Statistics | 1 | 1 | 3,164 | 3,868 |
| 852 | Logic | 1 | 1 | 731 | 994 |
| 852 | Special Education | 1 | 1 | 1,260 | 1,756 |
| 852 | Economic History | 4 | 1 | 2,706 | 4,993 |
| 852 | Clinical Chemistry | 2 | 1 | 2,451 | 3,792 |
| 852 | Stochastic Processes | 1 | 1 | 1,489 | 2,115 |
| 852 | Paleobiology | 1 | 1 | 624 | 950 |
| 852 | Economic Thought | 1 | 1 | 510 | 798 |
| 852 | Bioethics | 1 | 1 | 1,410 | 2,013 |
| 852 | Medical Ethics | 1 | 1 | 1,649 | 2,345 |
| 852 | Feminist theory | 1 | 1 | 398 | 614 |
| 852 | Genetic algorithms | 1 | 1 | 545 | 927 |
| 852 | locomotion | 1 | 1 | 981 | 1,489 |
| 852 | Regional Development | 1 | 1 | 485 | 812 |
| 852 | posture | 1 | 1 | 981 | 1,489 |
| 852 | Speech Disorders | 1 | 1 | 1,334 | 1,878 |
| 852 | nursing ethics | 1 | 1 | 489 | 908 |
| 852 | Development planning | 1 | 1 | 447 | 763 |
| 852 | reasoning | 1 | 1 | 814 | 1,219 |
| 852 | Earthquakes | 1 | 1 | 623 | 954 |
| 852 | economic conditions | 2 | 1 | 634 | 1,224 |
| 852 | Great Lakes | 1 | 1 | 370 | 668 |
| 852 | Communication in politics | 1 | 1 | 523 | 943 |
| 852 | Spanish literature | 1 | 1 | 213 | 169 |
| 852 | drugs | 1 | 1 | 2,514 | 3,475 |
| 852 | pharmaceutical industry | 2 | 1 | 701 | 1,630 |
| 852 | Speech | 1 | 1 | 1,303 | 1,849 |
| 852 | gait | 1 | 1 | 981 | 1,489 |
| 852 | Economic planning | 1 | 1 | 943 | 1,563 |
| 852 | Chronic diseases | 1 | 1 | 857 | 1,343 |
| 852 | walking | 1 | 1 | 981 | 1,489 |
| 884 | Mechanical Engineering | 1 | 0 | 3,070 | 3,899 |
| 884 | Ophthalmology | 1 | 0 | 1,938 | 2,710 |
| 884 | Information Theory | 1 | 0 | 1,917 | 2,644 |
| 884 | Legal History | 1 | 0 | 57 | 58 |
| 884 | Metaphysics | 1 | 0 | 74 | 131 |
| 884 | Computational Mathematics | 1 | 0 | 215 | 388 |
| 884 | Quantum electronics | 1 | 0 | 2,209 | 2,929 |
| 884 | Discrete Mathematics | 2 | 0 | 506 | 1,036 |
| 884 | visual sociology | 1 | 0 | 93 | 148 |
| 884 | health services accessibility | 1 | 0 | 1,468 | 2,326 |
| 884 | sedimentary basins | 1 | 0 | 339 | 588 |
| 884 | Neural circuitry | 1 | 0 | 2,760 | 3,639 |
| 884 | Socioeconomic Factors | 1 | 0 | 1,310 | 2,244 |
| 884 | Byzantine Empire | 5 | 0 | 10 | 64 |
| 884 | Environmental risk assessment | 1 | 0 | 783 | 1,460 |
| 884 | Optoelectronic devices | 1 | 0 | 1,578 | 2,234 |
| 884 | Hormones | 1 | 0 | 1,562 | 2,281 |
| 884 | environmental control | 1 | 0 | 385 | 820 |
| 884 | graph | 2 | 0 | 506 | 1,036 |
| 884 | constitutional courts | 1 | 0 | 137 | 222 |
| 884 | Biometrics | 1 | 0 | 1,403 | 2,010 |
| 884 | marketing | 1 | 0 | 2,608 | 3,541 |
| 884 | Diplomatic relations | 1 | 0 | 1,042 | 1,471 |
| 884 | Urban Areas | 1 | 0 | 471 | 925 |
| 884 | Cannabis | 1 | 0 | 191 | 443 |
| 884 | cannabinoids | 1 | 0 | 174 | 417 |
| 884 | Development | 1 | 0 | 1,251 | 1,926 |
| 884 | United Kingdom | 1 | 0 | 2,022 | 2,958 |
| 884 | Economic Assistance | 1 | 0 | 1,141 | 1,803 |
| 884 | Bacteriophages | 1 | 0 | 67 | 201 |
| 884 | world | 1 | 0 | 1,141 | 1,865 |
| 884 | vitamins | 1 | 0 | 288 | 648 |