| 1 | Science | 22,523 | 3.9M | 2 | 2 |
| 2 | Biology | 19,530 | 3.4M | 2 | 2 |
| 3 | Physics | 15,699 | 3.2M | 7 | 2 |
| 4 | Medicine | 21,882 | 2.2M | 1 | 1 |
| 5 | Natural history | 5,471 | 2.2M | 3 | 1 |
| 6 | Cell Biology | 7,737 | 1.8M | 2 | 2 |
| 7 | Cytology | 7,528 | 1.7M | 2 | 2 |
| 8 | Molecular Biology | 11,478 | 1.4M | 2 | 2 |
| 9 | Virology | 4,646 | 1.3M | 2 | 2 |
| 10 | Neurology | 10,817 | 1.1M | 2 | 2 |
| 11 | Biochemistry | 12,375 | 954.9K | 7 | 3 |
| 12 | Chemistry | 7,145 | 698.1K | 13 | 6 |
| 13 | Immunology | 7,540 | 689.3K | 1 | 1 |
| 14 | Human genetics | 2,364 | 641.7K | 1 | 1 |
| 15 | Genetics | 4,499 | 632.5K | 2 | 2 |
| 16 | Research | 9,398 | 576.0K | 1 | 1 |
| 17 | Psychiatry | 6,669 | 546.7K | 1 | 1 |
| 18 | Public Health | 7,149 | 523.3K | 2 | 1 |
| 19 | Surgery | 2,731 | 496.4K | 1 | 1 |
| 20 | Microbiology | 5,151 | 492.6K | 8 | 2 |
| 21 | Biotechnology | 2,230 | 437.7K | 14 | 2 |
| 22 | Immunity | 2,192 | 432.4K | 1 | 1 |
| 23 | Cancer | 4,789 | 394.3K | 1 | 3 |
| 24 | Economics | 2,556 | 388.6K | 4 | 1 |
| 25 | Bioengineering | 1,541 | 381.9K | 9 | 2 |
| 26 | Neurophysiology | 2,782 | 351.2K | 2 | 2 |
| 27 | Cardiovascular system | 3,108 | 308.8K | 1 | 1 |
| 28 | Developmental Biology | 2,648 | 308.7K | 2 | 3 |
| 29 | Epidemiology | 4,162 | 304.6K | 3 | 2 |
| 30 | Psychology | 3,900 | 304.6K | 2 | 2 |
| 31 | Biochemical Engineering | 791 | 300.3K | 18 | 1 |
| 32 | Hematology | 7,011 | 282.5K | 5 | 1 |
| 33 | Astrophysics | 4,042 | 272.7K | 23 | 25 |
| 34 | Pediatrics | 4,577 | 271.9K | 1 | 1 |
| 35 | Endocrinology | 3,986 | 270.0K | 2 | 2 |
| 36 | Neurons | 1,084 | 267.8K | 3 | 3 |
| 37 | Physiology | 3,529 | 247.7K | 4 | 2 |
| 38 | Medical genetics | 2,691 | 237.2K | 3 | 1 |
| 39 | Nanotechnology | 2,132 | 236.7K | 23 | 9 |
| 40 | Hypertension | 2,436 | 236.0K | 1 | 1 |
| 41 | Mental Disorders | 2,735 | 230.7K | 2 | 1 |
| 42 | Metabolic diseases | 2,247 | 220.2K | 3 | 1 |
| 43 | Biophysics | 5,295 | 218.6K | 5 | 2 |
| 44 | Spectrum analysis | 3,200 | 218.1K | 14 | 12 |
| 45 | United States | 4,118 | 216.2K | 6 | 3 |
| 46 | Nuclear Physics | 3,049 | 203.9K | 40 | 13 |
| 47 | Environmental Health | 2,923 | 198.4K | 6 | 4 |
| 48 | genome | 805 | 198.3K | 4 | 3 |
| 49 | Statistics | 1,901 | 198.0K | 3 | 2 |
| 50 | Immune system | 715 | 196.7K | 1 | 1 |
| 51 | Psychophysiology | 2,754 | 191.1K | 2 | 2 |
| 52 | Oncology | 1,515 | 185.2K | 3 | 1 |
| 53 | Cytogenetics | 1,215 | 181.4K | 2 | 2 |
| 54 | Environment | 1,981 | 180.1K | 4 | 3 |
| 55 | Allergy | 1,411 | 179.0K | 1 | 1 |
| 56 | Cell differentiation | 1,439 | 178.5K | 2 | 1 |
| 57 | Metabolism | 2,494 | 171.8K | 3 | 2 |
| 58 | Embryology | 1,329 | 171.2K | 2 | 3 |
| 59 | Nervous system | 1,481 | 169.4K | 2 | 2 |
| 60 | Solid State Physics | 1,984 | 167.5K | 34 | 9 |
| 61 | Ecology | 2,090 | 166.7K | 30 | 26 |
| 62 | Anatomy | 1,551 | 165.4K | 2 | 2 |
| 63 | Condensed Matter | 1,956 | 163.9K | 34 | 11 |
| 64 | Diabetes | 1,880 | 161.9K | 2 | 1 |
| 65 | Growth | 1,064 | 160.9K | 3 | 3 |
| 66 | Diabetes mellitus | 1,755 | 157.8K | 2 | 1 |
| 67 | Computational Biology | 1,126 | 155.5K | 4 | 4 |
| 68 | Genetic regulation | 871 | 154.6K | 1 | 2 |
| 69 | Nutrition | 2,893 | 154.4K | 1 | 1 |
| 70 | Materials | 1,054 | 151.4K | 146 | 34 |
| 71 | Developmental Genetics | 789 | 151.3K | 2 | 2 |
| 72 | Pharmacology | 2,135 | 148.8K | 13 | 5 |
| 73 | Immunotherapy | 770 | 144.9K | 2 | 1 |
| 74 | Gene expression regulation | 759 | 140.9K | 2 | 2 |
| 75 | Astronomy | 2,879 | 140.0K | 39 | 56 |
| 76 | management | 656 | 133.5K | 16 | 3 |
| 77 | viral genetics | 574 | 131.9K | 2 | 2 |
| 78 | Pathology | 1,481 | 128.9K | 2 | 1 |
| 79 | Sociology | 1,389 | 124.9K | 3 | 2 |
| 80 | Behavior | 2,013 | 123.0K | 2 | 2 |
| 81 | nucleic acids | 742 | 122.8K | 4 | 8 |
| 82 | viruses | 1,584 | 122.7K | 3 | 1 |
| 83 | Psychopharmacology | 1,749 | 121.9K | 2 | 1 |
| 84 | Bioinformatics | 741 | 121.5K | 4 | 5 |
| 85 | Neurobiology | 1,313 | 114.5K | 2 | 2 |
| 86 | Bacteriology | 945 | 114.4K | 4 | 5 |
| 87 | Diet | 1,548 | 113.6K | 1 | 1 |
| 88 | Brain | 1,732 | 111.9K | 3 | 3 |
| 89 | Pharmaceutical Chemistry | 1,388 | 110.7K | 9 | 1 |
| 90 | miniaturization | 853 | 107.8K | 4 | 5 |
| 91 | Biomedical Engineering | 1,471 | 105.4K | 9 | 5 |
| 92 | Pediatric Neurology | 806 | 104.6K | 1 | 2 |
| 93 | Materials Science | 1,047 | 104.4K | 80 | 18 |
| 94 | gene mapping | 852 | 103.1K | 3 | 2 |
| 95 | Biocompatible Materials | 1,094 | 101.5K | 29 | 11 |
| 96 | Mental illness | 1,535 | 94.3K | 2 | 2 |
| 97 | Perception | 1,935 | 92.7K | 2 | 2 |
| 98 | Cell metabolism | 435 | 91.3K | 1 | 1 |
| 99 | Geophysics | 1,503 | 91.1K | 45 | 29 |
| 100 | Homeostasis | 420 | 91.1K | 1 | 1 |
| 101 | Memory | 1,823 | 90.7K | 2 | 2 |
| 102 | commerce | 322 | 89.2K | 4 | 1 |
| 103 | Health Policy | 2,096 | 88.4K | 1 | 1 |
| 104 | Social Psychology | 918 | 86.5K | 3 | 5 |
| 105 | Quantum Gravity | 1,125 | 85.9K | 27 | 16 |
| 106 | Statistical physics | 1,479 | 85.7K | 19 | 5 |
| 107 | Medical innovations | 774 | 85.2K | 1 | 1 |
| 108 | Host-parasite interactions | 693 | 84.3K | 2 | 1 |
| 109 | Transplantation | 1,470 | 84.2K | 1 | 1 |
| 110 | Business | 309 | 84.1K | 12 | 2 |
| 111 | Cognitive neuroscience | 654 | 81.9K | 2 | 2 |
| 112 | Environmental Toxicology | 749 | 81.3K | 8 | 3 |
| 113 | drug development | 739 | 81.3K | 1 | 1 |
| 114 | Medical Oncology | 2,668 | 80.8K | 3 | 4 |
| 115 | Clinical Psychology | 718 | 80.2K | 4 | 2 |
| 116 | Neurochemistry | 1,199 | 79.5K | 5 | 3 |
| 117 | Political Science | 1,016 | 78.7K | 3 | 2 |
| 118 | Cognition | 948 | 77.2K | 2 | 2 |
| 119 | Geriatrics | 1,898 | 76.7K | 5 | 5 |
| 120 | Attention | 1,777 | 76.7K | 2 | 1 |
| 121 | cell physiology | 997 | 76.1K | 2 | 2 |
| 122 | human behavior | 881 | 74.8K | 2 | 3 |
| 123 | Visual Perception | 1,691 | 73.7K | 2 | 1 |
| 124 | Sleep | 1,635 | 73.3K | 1 | 1 |
| 125 | Oncogenes | 646 | 71.2K | 4 | 3 |
| 126 | Pollution | 847 | 69.5K | 74 | 34 |
| 127 | Botany | 1,477 | 69.3K | 20 | 33 |
| 128 | Optics | 1,449 | 68.6K | 31 | 8 |
| 129 | Ophthalmology | 1,670 | 68.5K | 2 | 2 |
| 130 | Medical Anthropology | 842 | 68.1K | 3 | 1 |
| 131 | Critical Care | 1,008 | 67.6K | 3 | 3 |
| 132 | Microelectronics | 465 | 67.3K | 10 | 7 |
| 133 | Toxicology | 1,140 | 67.0K | 30 | 8 |
| 134 | Sleep Disorders | 1,576 | 66.5K | 1 | 1 |
| 135 | Critical Care Medicine | 917 | 66.0K | 4 | 3 |
| 136 | Research Design | 421 | 64.2K | 3 | 1 |
| 137 | Molecular structure | 530 | 64.0K | 8 | 3 |
| 138 | Alzheimer's disease | 1,549 | 63.3K | 3 | 4 |
| 139 | Child psychology | 969 | 63.1K | 2 | 4 |
| 140 | Radiobiology | 2,161 | 62.5K | 3 | 5 |
| 141 | Genomics | 1,168 | 62.0K | 6 | 4 |
| 142 | Urology | 1,331 | 61.2K | 6 | 7 |
| 143 | biological evolution | 843 | 60.2K | 5 | 11 |
| 144 | Health Services Administration | 1,190 | 59.8K | 1 | 1 |
| 145 | DNA polymerases | 228 | 59.4K | 2 | 2 |
| 146 | Obesity | 1,167 | 59.0K | 2 | 2 |
| 147 | Dermatology | 1,827 | 57.4K | 2 | 3 |
| 148 | Aging | 1,347 | 56.8K | 6 | 4 |
| 149 | Dementia | 1,434 | 56.4K | 3 | 5 |
| 150 | Biometrics | 1,034 | 56.4K | 2 | 2 |
| 151 | Medical Microbiology | 728 | 56.1K | 8 | 7 |
| 152 | Child Development | 977 | 54.5K | 4 | 8 |
| 153 | Obstetrics | 1,537 | 54.3K | 3 | 3 |
| 154 | economic policy | 528 | 54.2K | 11 | 1 |
| 155 | Medical Physics | 1,431 | 53.5K | 5 | 3 |
| 156 | Mathematics | 2,011 | 53.0K | 34 | 13 |
| 157 | Cognitive Science | 415 | 51.3K | 2 | 2 |
| 158 | Environmental Engineering | 767 | 50.9K | 15 | 17 |
| 159 | Mathematical Physics | 820 | 50.2K | 16 | 5 |
| 160 | Neuropsychology | 892 | 50.1K | 3 | 2 |
| 161 | pain | 742 | 49.4K | 2 | 2 |
| 162 | Schizophrenia | 1,062 | 49.2K | 1 | 2 |
| 163 | Animal Behavior | 505 | 49.0K | 15 | 6 |
| 164 | Atmospheric Physics | 599 | 49.0K | 32 | 17 |
| 165 | Therapeutics | 799 | 48.7K | 3 | 3 |
| 166 | Clinical Chemistry | 991 | 48.3K | 6 | 3 |
| 167 | Virulence | 532 | 47.8K | 4 | 2 |
| 168 | Molecular Microbiology | 348 | 47.5K | 3 | 2 |
| 169 | Bacterial infections | 305 | 46.6K | 2 | 1 |
| 170 | arthritis | 945 | 46.4K | 2 | 3 |
| 171 | Genetic engineering | 526 | 46.3K | 7 | 2 |
| 172 | Nanostructures | 212 | 45.5K | 36 | 6 |
| 173 | mycoses | 273 | 45.4K | 2 | 1 |
| 174 | Clinical Trials | 284 | 45.1K | 1 | 1 |
| 175 | Respiration | 721 | 45.0K | 2 | 2 |
| 176 | Econometrics | 279 | 44.9K | 11 | 2 |
| 177 | Geology | 580 | 44.0K | 88 | 34 |
| 178 | nanoscience | 441 | 44.0K | 54 | 29 |
| 179 | Economic History | 851 | 43.3K | 14 | 4 |
| 180 | Analytical Chemistry | 392 | 43.2K | 172 | 21 |
| 181 | Liver diseases | 587 | 43.1K | 7 | 11 |
| 182 | Atmospheric Chemistry | 466 | 42.9K | 21 | 13 |
| 183 | Chromosome mapping | 615 | 42.9K | 3 | 2 |
| 184 | preventive medicine | 871 | 42.5K | 3 | 6 |
| 185 | Child | 1,424 | 42.1K | 2 | 4 |
| 186 | Combinatorial chemistry | 406 | 41.1K | 2 | 2 |
| 187 | Ethology | 354 | 40.5K | 16 | 4 |
| 188 | Cerebral cortex | 442 | 40.1K | 3 | 1 |
| 189 | Histology | 433 | 39.7K | 8 | 2 |
| 190 | Social Sciences | 1,191 | 39.0K | 5 | 3 |
| 191 | Health promotion | 887 | 38.8K | 5 | 6 |
| 192 | organization | 225 | 38.7K | 3 | 4 |
| 193 | psychotherapy | 571 | 38.3K | 2 | 4 |
| 194 | Rheumatology | 694 | 38.3K | 2 | 2 |
| 195 | Evolution | 520 | 38.0K | 10 | 7 |
| 196 | Developing countries | 649 | 37.4K | 6 | 3 |
| 197 | Orthopedics | 813 | 36.8K | 4 | 5 |
| 198 | Chronic diseases | 289 | 36.3K | 7 | 8 |
| 199 | proteins | 526 | 36.0K | 7 | 4 |
| 200 | behavioral medicine | 554 | 35.5K | 2 | 2 |
| 201 | personality | 397 | 35.4K | 7 | 8 |
| 202 | Stem cells | 740 | 35.1K | 2 | 1 |
| 203 | Metals | 260 | 34.8K | 107 | 17 |
| 204 | Developmental Psychology | 537 | 34.3K | 3 | 3 |
| 205 | Meteorology | 444 | 34.1K | 83 | 55 |
| 206 | Polymers | 429 | 33.9K | 245 | 77 |
| 207 | alcoholism | 628 | 33.9K | 8 | 4 |
| 208 | drug therapy | 803 | 33.8K | 8 | 10 |
| 209 | Economic Development | 389 | 33.8K | 9 | 5 |
| 210 | fertility | 1,021 | 33.8K | 1 | 2 |
| 211 | Environmental monitoring | 665 | 33.7K | 16 | 15 |
| 212 | Education | 1,171 | 33.6K | 18 | 18 |
| 213 | Adolescent Medicine | 499 | 33.5K | 1 | 1 |
| 214 | Infertility | 1,014 | 33.4K | 1 | 2 |
| 215 | Planets | 517 | 33.2K | 47 | 30 |
| 216 | Environmental Policy | 563 | 32.7K | 10 | 11 |
| 217 | Adolescent | 1,177 | 32.5K | 2 | 3 |
| 218 | diseases | 79 | 32.5K | 4 | 2 |
| 219 | Cell death | 254 | 32.2K | 21 | 5 |
| 220 | Disease | 76 | 32.2K | 1 | 2 |
| 221 | medical education | 1,107 | 32.0K | 4 | 5 |
| 222 | Health | 757 | 31.5K | 6 | 7 |
| 223 | Bioorganic chemistry | 515 | 31.4K | 23 | 7 |
| 224 | Diagnostic Imaging | 751 | 31.3K | 4 | 3 |
| 225 | Geochemistry | 350 | 31.1K | 65 | 27 |
| 226 | Light | 315 | 31.0K | 2 | 4 |
| 227 | gene therapy | 460 | 30.9K | 2 | 1 |
| 228 | Clinical Immunology | 960 | 30.7K | 1 | 1 |
| 229 | Anthropology | 1,164 | 29.4K | 2 | 2 |
| 230 | marketing | 210 | 29.3K | 26 | 18 |
| 231 | rehabilitation | 700 | 29.3K | 7 | 8 |
| 232 | Plant cells | 155 | 29.3K | 73 | 37 |
| 233 | Photonics | 258 | 29.2K | 36 | 6 |
| 234 | Leukemia | 520 | 29.0K | 9 | 9 |
| 235 | Colloids | 434 | 28.9K | 110 | 36 |
| 236 | Biomechanics | 386 | 28.6K | 5 | 3 |
| 237 | Nonlinear Dynamics | 512 | 28.3K | 25 | 12 |
| 238 | Decision making | 349 | 28.1K | 3 | 4 |
| 239 | Immunopathology | 728 | 28.1K | 2 | 2 |
| 240 | drug addiction | 406 | 27.7K | 9 | 3 |
| 241 | Reproduction | 530 | 27.7K | 17 | 11 |
| 242 | Computational Chemistry | 35 | 27.6K | 53 | 8 |
| 243 | Thrombosis | 427 | 27.6K | 3 | 3 |
| 244 | histological techniques | 246 | 27.2K | 2 | 1 |
| 245 | Meteorites | 256 | 27.1K | 37 | 20 |
| 246 | Molecular Genetics | 436 | 27.0K | 11 | 12 |
| 247 | Molecular evolution | 431 | 27.0K | 5 | 16 |
| 248 | vascular diseases | 385 | 26.7K | 1 | 1 |
| 249 | Data Mining | 186 | 26.6K | 7 | 1 |
| 250 | Organic Chemistry | 472 | 26.2K | 50 | 16 |
| 251 | United Kingdom | 428 | 26.0K | 17 | 8 |
| 252 | Health insurance | 489 | 25.8K | 1 | 3 |
| 253 | income distribution | 43 | 25.5K | 2 | 1 |
| 254 | Computer Vision | 199 | 25.5K | 13 | 10 |
| 255 | Optical materials | 272 | 25.1K | 88 | 46 |
| 256 | data collection | 135 | 24.9K | 3 | 1 |
| 257 | Microbial Ecology | 321 | 24.9K | 46 | 68 |
| 258 | sanitation | 318 | 24.7K | 26 | 37 |
| 259 | Proteome | 317 | 24.5K | 4 | 4 |
| 260 | Learning | 345 | 24.4K | 3 | 4 |
| 261 | Anxiety Disorders | 322 | 24.1K | 1 | 1 |
| 262 | Emergency Medicine | 954 | 24.1K | 3 | 3 |
| 263 | environmental protection | 449 | 24.1K | 21 | 13 |
| 264 | Drug delivery systems | 179 | 23.6K | 17 | 3 |
| 265 | Histochemistry | 179 | 23.6K | 10 | 1 |
| 266 | Biodiversity conservation | 162 | 23.2K | 62 | 30 |
| 267 | Social behavior | 273 | 23.1K | 5 | 5 |
| 268 | Genetic therapy | 483 | 23.1K | 4 | 6 |
| 269 | Health Education | 617 | 23.1K | 8 | 7 |
| 270 | Physical Chemistry | 235 | 22.9K | 64 | 23 |
| 271 | Neuropsychiatry | 454 | 22.9K | 2 | 1 |
| 272 | Anxiety | 310 | 22.9K | 1 | 1 |
| 273 | Membranes | 435 | 22.9K | 8 | 13 |
| 274 | finance | 267 | 22.9K | 30 | 12 |
| 275 | Gerontology | 810 | 22.7K | 8 | 6 |
| 276 | Mathematical Economics | 79 | 22.7K | 6 | 1 |
| 277 | protein | 262 | 22.4K | 12 | 8 |
| 278 | Diagnostic microbiology | 272 | 22.2K | 11 | 15 |
| 279 | nuclear magnetic resonance | 437 | 22.1K | 5 | 5 |
| 280 | Signal Transduction | 270 | 22.1K | 11 | 4 |
| 281 | Vaccines | 543 | 21.5K | 11 | 7 |
| 282 | Radiology | 1,032 | 21.3K | 1 | 1 |
| 283 | Substance Abuse | 673 | 21.3K | 6 | 5 |
| 284 | Hospitals | 701 | 21.1K | 1 | 2 |
| 285 | Climate change | 114 | 20.7K | 38 | 19 |
| 286 | brain mapping | 258 | 20.7K | 1 | 2 |
| 287 | Eutrophication | 107 | 20.7K | 41 | 19 |
| 288 | Environmental Law | 373 | 20.7K | 3 | 2 |
| 289 | Recombinant DNA | 231 | 20.4K | 13 | 3 |
| 290 | Medical Laboratory Science | 418 | 20.3K | 5 | 5 |
| 291 | Physical Therapy | 486 | 20.2K | 5 | 6 |
| 292 | Surface Chemistry | 277 | 20.2K | 195 | 75 |
| 293 | Psycholinguistics | 287 | 20.0K | 3 | 6 |
| 294 | Psychosomatic Medicine | 418 | 20.0K | 3 | 4 |
| 294 | Plants | 205 | 20.0K | 78 | 51 |
| 296 | health behavior | 559 | 20.0K | 6 | 6 |
| 297 | Lipids | 251 | 19.8K | 7 | 4 |
| 298 | Magnetic Resonance Spectroscopy | 357 | 19.8K | 8 | 4 |
| 299 | Women's health | 537 | 19.8K | 5 | 2 |
| 300 | occupational diseases | 376 | 19.7K | 2 | 2 |
| 301 | Molecular cloning | 210 | 19.6K | 13 | 3 |
| 302 | Genetic recombination | 204 | 19.5K | 15 | 3 |
| 303 | polymerization | 169 | 19.4K | 499 | 113 |
| 304 | Radiography | 659 | 18.9K | 1 | 2 |
| 305 | Hormones | 293 | 18.7K | 6 | 5 |
| 306 | enzymes | 408 | 18.5K | 3 | 5 |
| 307 | Information Theory | 238 | 18.4K | 7 | 6 |
| 308 | Public Policy | 379 | 18.4K | 6 | 6 |
| 309 | human development | 287 | 18.1K | 2 | 2 |
| 310 | Risk | 241 | 18.0K | 1 | 3 |
| 311 | Technology | 365 | 17.9K | 113 | 52 |
| 312 | Plant physiology | 137 | 17.9K | 148 | 44 |
| 313 | Earth Sciences | 195 | 17.8K | 200 | 82 |
| 314 | Artificial Intelligence | 481 | 17.8K | 55 | 48 |
| 315 | Photochemistry | 285 | 17.6K | 12 | 3 |
| 316 | cloning | 207 | 17.6K | 1 | 1 |
| 317 | Bones | 286 | 17.5K | 4 | 3 |
| 318 | Nanostructured Materials | 308 | 17.3K | 129 | 86 |
| 319 | Cardiovascular diseases | 654 | 17.1K | 3 | 3 |
| 320 | transport vesicles | 46 | 16.8K | 4 | 17 |
| 321 | plant molecular biology | 91 | 16.8K | 176 | 61 |
| 322 | environmental exposure | 358 | 16.8K | 9 | 8 |
| 323 | Eating Disorders | 359 | 16.5K | 5 | 3 |
| 324 | Sports Medicine | 585 | 16.5K | 19 | 36 |
| 325 | Vision | 283 | 16.5K | 4 | 3 |
| 326 | Depression | 205 | 16.3K | 1 | 1 |
| 327 | Image Processing | 226 | 16.2K | 36 | 20 |
| 328 | health services | 415 | 16.2K | 4 | 2 |
| 329 | Metallurgy | 210 | 16.1K | 165 | 71 |
| 330 | Systems Biology | 420 | 16.1K | 4 | 2 |
| 331 | Health Services Research | 519 | 16.0K | 9 | 21 |
| 332 | Feeding and Eating Disorders | 332 | 15.8K | 5 | 3 |
| 333 | Hemodynamics | 248 | 15.6K | 3 | 2 |
| 334 | Pharmacogenetics | 329 | 15.6K | 4 | 4 |
| 335 | Analytical Biochemistry | 256 | 15.5K | 6 | 11 |
| 336 | Neurotransmitters | 334 | 15.4K | 1 | 1 |
| 337 | Heart Failure | 368 | 15.3K | 2 | 3 |
| 338 | Audiology | 261 | 14.9K | 8 | 2 |
| 339 | Morphology | 242 | 14.9K | 3 | 2 |
| 340 | Population Genetics | 214 | 14.8K | 14 | 16 |
| 341 | Archaeology | 261 | 14.7K | 25 | 5 |
| 342 | Proteomics | 196 | 14.7K | 7 | 5 |
| 343 | environmental pollution | 360 | 14.4K | 142 | 166 |
| 344 | Zoology | 374 | 14.4K | 47 | 16 |
| 345 | Social problems | 141 | 14.1K | 4 | 3 |
| 346 | Parenteral nutrition | 390 | 14.0K | 2 | 14 |
| 347 | Otolaryngology | 417 | 13.9K | 1 | 1 |
| 348 | Kidney diseases | 312 | 13.9K | 5 | 3 |
| 349 | Bipolar Disorder | 237 | 13.8K | 1 | 1 |
| 350 | Medical Technology | 404 | 13.8K | 3 | 2 |
| 351 | free radicals | 211 | 13.8K | 26 | 19 |
| 352 | Post-traumatic stress disorder | 239 | 13.7K | 6 | 7 |
| 353 | Microeconomics | 150 | 13.6K | 2 | 2 |
| 354 | Entomology | 734 | 13.5K | 21 | 31 |
| 355 | infection | 255 | 13.3K | 17 | 15 |
| 356 | disease outbreaks | 274 | 13.3K | 2 | 5 |
| 357 | Europe | 573 | 13.1K | 36 | 29 |
| 358 | Epidemics | 263 | 13.1K | 2 | 7 |
| 359 | Antigens | 196 | 13.1K | 8 | 2 |
| 360 | Drug design | 250 | 13.1K | 7 | 4 |
| 361 | Orthopedic Surgery | 303 | 13.0K | 7 | 6 |
| 362 | Operations Research | 158 | 12.9K | 113 | 37 |
| 363 | Engineering | 421 | 12.9K | 73 | 43 |
| 364 | Chemical Engineering | 185 | 12.9K | 517 | 295 |
| 365 | Muscles | 340 | 12.9K | 3 | 4 |
| 366 | Biodiversity | 210 | 12.8K | 38 | 37 |
| 367 | Oxidation-reduction | 141 | 12.8K | 4 | 2 |
| 368 | world | 194 | 12.8K | 9 | 8 |
| 369 | behavior therapy | 357 | 12.8K | 2 | 6 |
| 370 | Mental Health | 577 | 12.6K | 2 | 9 |
| 371 | Demography | 204 | 12.5K | 8 | 6 |
| 372 | international trade | 158 | 12.4K | 4 | 3 |
| 373 | Development | 195 | 12.3K | 9 | 8 |
| 374 | Nephrology | 267 | 12.3K | 6 | 4 |
| 375 | Nanoparticles | 182 | 12.3K | 59 | 30 |
| 376 | Community Psychiatry | 493 | 12.2K | 4 | 7 |
| 377 | government | 345 | 12.1K | 5 | 2 |
| 378 | international cooperation | 152 | 12.1K | 3 | 1 |
| 379 | Welfare Economics | 145 | 12.0K | 2 | 3 |
| 380 | Organizational Behavior | 101 | 11.9K | 11 | 9 |
| 381 | Neuromuscular diseases | 316 | 11.8K | 3 | 4 |
| 382 | Linguistics | 241 | 11.8K | 29 | 15 |
| 383 | Experimental Psychology | 88 | 11.6K | 13 | 4 |
| 384 | Politics | 333 | 11.6K | 3 | 1 |
| 385 | health planning | 385 | 11.6K | 8 | 6 |
| 386 | Renewable Energy Sources | 101 | 11.5K | 156 | 90 |
| 387 | biopolymers | 203 | 11.4K | 13 | 4 |
| 388 | Mental Health Services | 583 | 11.3K | 3 | 6 |
| 389 | Developmental Disabilities | 222 | 11.3K | 12 | 19 |
| 390 | Economic Assistance | 151 | 11.3K | 9 | 6 |
| 391 | Energy Policy | 144 | 11.3K | 121 | 63 |
| 392 | Chemotherapy | 299 | 11.1K | 9 | 8 |
| 393 | complementary therapies | 331 | 11.0K | 14 | 6 |
| 394 | Robotics | 106 | 11.0K | 84 | 10 |
| 395 | peace | 135 | 11.0K | 6 | 5 |
| 396 | Infections | 158 | 11.0K | 19 | 24 |
| 397 | Antioxidants | 111 | 10.9K | 3 | 2 |
| 398 | economic conditions | 113 | 10.9K | 21 | 4 |
| 399 | Lung Transplantation | 304 | 10.9K | 18 | 11 |
| 399 | Heart transplantation | 304 | 10.9K | 18 | 11 |
| 401 | epilepsy | 334 | 10.9K | 1 | 1 |
| 402 | health services accessibility | 316 | 10.8K | 4 | 2 |
| 403 | Microorganisms | 104 | 10.7K | 61 | 27 |
| 404 | heredity | 229 | 10.7K | 3 | 3 |
| 405 | Economic Thought | 69 | 10.7K | 6 | 2 |
| 406 | Pharmacy | 252 | 10.6K | 76 | 39 |
| 407 | Smoking | 267 | 10.6K | 11 | 10 |
| 408 | Carcinogenesis | 246 | 10.6K | 9 | 11 |
| 409 | Microcirculation | 144 | 10.5K | 2 | 1 |
| 410 | International Relations | 279 | 10.5K | 12 | 6 |
| 411 | Microscopy | 236 | 10.4K | 18 | 13 |
| 412 | Public Administration | 134 | 10.4K | 67 | 17 |
| 413 | Population | 184 | 10.4K | 15 | 4 |
| 414 | warfare | 138 | 10.4K | 3 | 1 |
| 415 | Animal ecology | 119 | 10.3K | 60 | 11 |
| 416 | Electronics | 215 | 10.3K | 278 | 96 |
| 417 | Oceanography | 185 | 10.2K | 157 | 125 |
| 418 | Molecular ecology | 161 | 10.2K | 22 | 37 |
| 419 | Insects | 645 | 10.1K | 5 | 12 |
| 420 | Quality of life | 197 | 10.1K | 13 | 19 |
| 421 | Alternative Medicine | 282 | 10.1K | 17 | 11 |
| 422 | Speech Disorders | 205 | 10.0K | 34 | 17 |
| 423 | Regional Planning | 135 | 10.0K | 56 | 14 |
| 424 | carcinogens | 214 | 10.0K | 13 | 15 |
| 425 | Uncertainty | 74 | 10.0K | 1 | 3 |
| 426 | Social work | 339 | 10.0K | 21 | 11 |
| 427 | Organizational change | 88 | 10.0K | 2 | 1 |
| 428 | psychopathology | 104 | 9.9K | 3 | 3 |
| 429 | city planning | 223 | 9.9K | 24 | 13 |
| 430 | Primary health care | 427 | 9.9K | 9 | 14 |
| 431 | Thorax | 351 | 9.8K | 1 | 4 |
| 432 | Neurosurgery | 227 | 9.8K | 12 | 13 |
| 433 | Urban Economics | 73 | 9.7K | 8 | 2 |
| 434 | Spine | 222 | 9.7K | 4 | 12 |
| 435 | Autism | 169 | 9.7K | 10 | 6 |
| 436 | Biomolecules | 55 | 9.7K | 6 | 3 |
| 437 | Human evolution | 148 | 9.6K | 11 | 9 |
| 438 | Bone diseases | 94 | 9.6K | 2 | 1 |
| 439 | Personality Disorders | 149 | 9.6K | 1 | 1 |
| 440 | Genetic epidemiology | 198 | 9.6K | 2 | 4 |
| 441 | Biogeography | 103 | 9.6K | 25 | 12 |
| 442 | Primates | 211 | 9.4K | 12 | 9 |
| 443 | Development Economics | 103 | 9.4K | 4 | 2 |
| 444 | mutagens | 180 | 9.4K | 11 | 15 |
| 445 | counseling | 264 | 9.4K | 27 | 16 |
| 446 | Phylogeny | 165 | 9.4K | 12 | 9 |
| 447 | energy resources | 98 | 9.4K | 40 | 28 |
| 448 | Catalysis | 194 | 9.3K | 425 | 391 |
| 449 | Molecules | 153 | 9.3K | 62 | 17 |
| 450 | Digestive system diseases | 373 | 9.1K | 5 | 8 |
| 451 | Philosophy | 378 | 9.1K | 25 | 7 |
| 452 | biological factors | 132 | 9.1K | 46 | 14 |
| 453 | War and Society | 82 | 9.1K | 4 | 1 |
| 454 | Soft Condensed Matter | 194 | 9.0K | 10 | 8 |
| 455 | Financial management | 159 | 8.9K | 1 | 2 |
| 456 | Plant Ecology | 107 | 8.9K | 134 | 62 |
| 457 | urban population | 53 | 8.9K | 5 | 1 |
| 458 | Environmental Microbiology | 127 | 8.8K | 27 | 28 |
| 459 | Magnetic Resonance Imaging | 228 | 8.7K | 5 | 5 |
| 460 | blood transfusion | 298 | 8.7K | 9 | 7 |
| 461 | Speech | 188 | 8.6K | 25 | 17 |
| 462 | Endocrine glands | 80 | 8.6K | 3 | 1 |
| 463 | plant communities | 75 | 8.5K | 90 | 30 |
| 464 | Computer Graphics | 181 | 8.5K | 57 | 49 |
| 465 | Electrophoresis | 69 | 8.5K | 151 | 9 |
| 466 | Communication | 209 | 8.4K | 68 | 41 |
| 467 | Molecular Pharmacology | 113 | 8.3K | 13 | 10 |
| 468 | Pancreatic diseases | 87 | 8.3K | 27 | 2 |
| 469 | Risk Management | 192 | 8.2K | 1 | 2 |
| 470 | Blood vessels | 119 | 8.2K | 2 | 1 |
| 471 | Occupational Health | 282 | 8.2K | 6 | 9 |
| 472 | Medical Ethics | 461 | 8.2K | 1 | 2 |
| 473 | language | 168 | 8.2K | 12 | 6 |
| 474 | Industrial Microbiology | 98 | 8.1K | 97 | 35 |
| 475 | Environmental Chemistry | 105 | 8.1K | 118 | 127 |
| 476 | Child welfare | 222 | 8.1K | 12 | 9 |
| 477 | Nutrition physiology | 135 | 8.1K | 6 | 5 |
| 478 | calcification | 132 | 8.1K | 3 | 1 |
| 479 | cross-cultural comparison | 277 | 8.1K | 2 | 1 |
| 480 | Sites | 82 | 8.0K | 20 | 7 |
| 481 | Autoimmunity | 160 | 8.0K | 10 | 12 |
| 481 | Classification | 24 | 8.0K | 31 | 2 |
| 483 | Emotions | 97 | 7.9K | 9 | 9 |
| 484 | Molecular Spectroscopy | 131 | 7.9K | 54 | 15 |
| 485 | Probability | 169 | 7.9K | 3 | 3 |
| 486 | Electrophysiology | 281 | 7.9K | 7 | 6 |
| 487 | Antibodies | 139 | 7.9K | 5 | 4 |
| 488 | Clinical Biochemistry | 217 | 7.8K | 19 | 16 |
| 489 | urban health | 92 | 7.8K | 8 | 2 |
| 490 | older people | 624 | 7.8K | 12 | 16 |
| 491 | Food | 219 | 7.6K | 106 | 128 |
| 492 | optical instruments | 186 | 7.6K | 7 | 7 |
| 492 | Teaching | 298 | 7.6K | 19 | 33 |
| 494 | International security | 90 | 7.6K | 4 | 5 |
| 495 | Mycology | 242 | 7.5K | 32 | 47 |
| 496 | Immunogenetics | 133 | 7.5K | 10 | 4 |
| 497 | Production Management | 90 | 7.5K | 63 | 37 |
| 497 | visualization | 668 | 7.5K | 2 | 3 |
| 499 | General Surgery | 378 | 7.5K | 3 | 2 |
| 500 | Solar System | 89 | 7.4K | 122 | 58 |
| 501 | Radiation | 164 | 7.4K | 68 | 39 |
| 502 | Tropical Medicine | 289 | 7.3K | 24 | 21 |
| 503 | Chromosomes | 153 | 7.3K | 14 | 11 |
| 504 | Structure-activity relationship | 33 | 7.3K | 15 | 4 |
| 505 | Strategic planning | 98 | 7.2K | 3 | 1 |
| 506 | Fluid Mechanics | 71 | 7.2K | 250 | 47 |
| 507 | Parasitic Diseases | 149 | 7.2K | 89 | 78 |
| 508 | Parasitology | 200 | 7.2K | 109 | 81 |
| 509 | Reproductive toxicology | 62 | 7.2K | 13 | 4 |
| 510 | atmospheric models | 128 | 7.2K | 40 | 51 |
| 511 | Adolescent Psychology | 234 | 7.1K | 2 | 3 |
| 512 | Labor Economics | 68 | 7.1K | 5 | 4 |
| 513 | cardiac catheterization | 327 | 7.1K | 3 | 4 |
| 514 | Entrepreneurship | 37 | 7.1K | 99 | 36 |
| 515 | Patient education | 135 | 7.1K | 13 | 6 |
| 516 | Agriculture | 212 | 7.0K | 82 | 91 |
| 517 | Nuclear Medicine | 226 | 7.0K | 12 | 26 |
| 518 | Sports | 240 | 7.0K | 52 | 68 |
| 519 | Psychometrics | 83 | 7.0K | 36 | 24 |
| 520 | Geography | 219 | 7.0K | 110 | 97 |
| 521 | cytokines | 118 | 7.0K | 48 | 13 |
| 522 | Neuroimmunology | 174 | 6.9K | 8 | 10 |
| 523 | Comparative Physiology | 194 | 6.9K | 8 | 13 |
| 524 | Energy Conversion | 58 | 6.9K | 144 | 139 |
| 525 | Immunochemistry | 248 | 6.8K | 3 | 5 |
| 526 | System analysis | 169 | 6.7K | 73 | 41 |
| 527 | Autoimmune diseases | 154 | 6.7K | 3 | 6 |
| 528 | Climatology | 145 | 6.7K | 159 | 195 |
| 529 | drugs | 233 | 6.7K | 44 | 52 |
| 530 | adolescence | 154 | 6.7K | 21 | 26 |
| 531 | cell interaction | 155 | 6.6K | 11 | 5 |
| 532 | chronic disease | 165 | 6.6K | 4 | 4 |
| 533 | Neurolinguistics | 102 | 6.6K | 6 | 5 |
| 534 | ecosystem | 70 | 6.6K | 101 | 47 |
| 535 | Radiotherapy | 334 | 6.6K | 1 | 1 |
| 536 | Astrocytes | 64 | 6.6K | 12 | 5 |
| 537 | Marine Biology | 133 | 6.5K | 278 | 197 |
| 538 | working class | 49 | 6.5K | 5 | 3 |
| 539 | Electrochemistry | 258 | 6.5K | 287 | 300 |
| 540 | Functional Genomics | 85 | 6.5K | 3 | 1 |
| 541 | Medical Imaging | 165 | 6.5K | 8 | 7 |
| 542 | International Finance | 97 | 6.4K | 64 | 16 |
| 543 | North America | 337 | 6.4K | 4 | 2 |
| 544 | Family | 169 | 6.4K | 26 | 25 |
| 545 | Global Health | 368 | 6.4K | 5 | 8 |
| 546 | Liposomes | 47 | 6.3K | 19 | 6 |
| 547 | labor | 63 | 6.3K | 4 | 4 |
| 548 | Lipid bilayers | 40 | 6.2K | 14 | 6 |
| 549 | Psychoneuroimmunology | 152 | 6.2K | 8 | 14 |
| 550 | Criminology | 135 | 6.1K | 46 | 23 |
| 551 | eye | 48 | 6.0K | 4 | 5 |
| 552 | China | 281 | 6.0K | 114 | 96 |
| 553 | Retina | 50 | 6.0K | 2 | 5 |
| 553 | Mechanics | 43 | 6.0K | 185 | 20 |
| 555 | child abuse | 125 | 6.0K | 17 | 19 |
| 556 | Dietetics | 210 | 5.9K | 7 | 9 |
| 557 | Inflammation | 125 | 5.9K | 16 | 16 |
| 557 | Cerebellum | 77 | 5.9K | 1 | 1 |
| 557 | Cerebellar ataxia | 77 | 5.9K | 1 | 1 |
| 560 | natural products | 48 | 5.8K | 261 | 47 |
| 561 | Psychiatric hospitals | 286 | 5.8K | 4 | 6 |
| 562 | Growth factors | 51 | 5.8K | 6 | 1 |
| 563 | Jurisprudence | 244 | 5.8K | 6 | 4 |
| 564 | Nuclear non-proliferation | 55 | 5.8K | 1 | 1 |
| 565 | Autoantibodies | 128 | 5.7K | 4 | 8 |
| 566 | soil microbiology | 81 | 5.7K | 158 | 145 |
| 567 | Law | 231 | 5.7K | 37 | 5 |
| 568 | national security | 88 | 5.7K | 2 | 2 |
| 569 | Information Science | 172 | 5.7K | 75 | 89 |
| 570 | Cybernetics | 82 | 5.6K | 72 | 28 |
| 571 | Paleontology | 134 | 5.6K | 81 | 36 |
| 572 | Cognitive Therapy | 211 | 5.6K | 1 | 7 |
| 573 | child behavior | 149 | 5.5K | 2 | 2 |
| 574 | Steroids | 154 | 5.5K | 11 | 10 |
| 575 | organizational effectiveness | 27 | 5.5K | 35 | 1 |
| 576 | Bioethics | 227 | 5.5K | 5 | 4 |
| 577 | Petrology | 50 | 5.5K | 204 | 74 |
| 578 | Personality Assessment | 115 | 5.5K | 7 | 16 |
| 579 | Conservation Biology | 85 | 5.4K | 70 | 58 |
| 580 | Maternal health services | 150 | 5.3K | 6 | 5 |
| 581 | Genes | 145 | 5.3K | 20 | 21 |
| 582 | Applied Sciences | 8 | 5.3K | 5 | 1 |
| 582 | Applied Mechanics | 8 | 5.3K | 5 | 1 |
| 584 | Hippocampus | 57 | 5.2K | 10 | 9 |
| 585 | Metastasis | 48 | 5.2K | 4 | 4 |
| 586 | Student Health Services | 57 | 5.2K | 7 | 1 |
| 587 | prostaglandins | 101 | 5.2K | 4 | 3 |
| 588 | Reproductive health | 144 | 5.1K | 7 | 6 |
| 589 | Neuropharmacology | 77 | 5.1K | 7 | 3 |
| 590 | Biogeochemical cycles | 51 | 5.1K | 39 | 36 |
| 591 | Political Psychology | 65 | 5.1K | 5 | 5 |
| 592 | Oxidative stress | 96 | 5.1K | 33 | 27 |
| 593 | Photobiology | 39 | 5.1K | 162 | 13 |
| 594 | Mineralogy | 95 | 5.1K | 155 | 89 |
| 595 | glycoproteins | 81 | 5.1K | 8 | 5 |
| 595 | Glycoconjugates | 81 | 5.1K | 8 | 5 |
| 595 | glycolipids | 81 | 5.1K | 8 | 5 |
| 598 | Communication in medicine | 104 | 5.0K | 20 | 10 |
| 598 | drug abuse | 179 | 5.0K | 6 | 5 |
| 600 | Water | 91 | 5.0K | 309 | 331 |
| 601 | Human biology | 128 | 5.0K | 5 | 1 |
| 602 | race relations | 104 | 4.9K | 8 | 2 |
| 603 | Consciousness | 76 | 4.9K | 4 | 5 |
| 604 | Automation | 77 | 4.9K | 190 | 119 |
| 605 | Cosmology | 125 | 4.9K | 68 | 32 |
| 606 | Contraception | 165 | 4.9K | 13 | 16 |
| 607 | Carbohydrates | 70 | 4.9K | 5 | 4 |
| 608 | Scandinavia | 32 | 4.9K | 88 | 9 |
| 609 | Culture techniques | 140 | 4.8K | 2 | 3 |
| 610 | Cytokine | 55 | 4.8K | 11 | 3 |
| 611 | Malaria | 136 | 4.8K | 33 | 25 |
| 612 | Psychoanalysis | 307 | 4.8K | 2 | 1 |
| 613 | Educational Psychology | 143 | 4.7K | 74 | 95 |
| 614 | Biopharmaceutics | 105 | 4.7K | 30 | 20 |
| 615 | RNA | 64 | 4.6K | 22 | 18 |
| 616 | Computer Science | 113 | 4.5K | 71 | 22 |
| 617 | Social Networks | 25 | 4.5K | 22 | 7 |
| 618 | Structuralism | 24 | 4.5K | 14 | 7 |
| 618 | Nuclear Chemistry | 45 | 4.5K | 184 | 9 |
| 620 | Infection control | 126 | 4.5K | 13 | 15 |
| 621 | collagen | 73 | 4.5K | 4 | 2 |
| 622 | Biosensors | 72 | 4.5K | 79 | 70 |
| 623 | Psychiatric Epidemiology | 126 | 4.5K | 7 | 9 |
| 624 | Oligosaccharide | 60 | 4.5K | 6 | 5 |
| 625 | consumer behavior | 46 | 4.5K | 27 | 13 |
| 626 | Enteral nutrition | 189 | 4.4K | 4 | 65 |
| 627 | mutation | 100 | 4.4K | 14 | 21 |
| 628 | Asthma | 151 | 4.4K | 1 | 2 |
| 629 | Extracellular matrix | 67 | 4.4K | 4 | 2 |
| 630 | Sun | 13 | 4.4K | 239 | 37 |
| 631 | Game Theory | 90 | 4.3K | 8 | 11 |
| 632 | Atherosclerosis | 77 | 4.3K | 2 | 1 |
| 633 | Yeast | 20 | 4.3K | 89 | 7 |
| 634 | homosexuality | 122 | 4.3K | 3 | 3 |
| 635 | Neurotoxicology | 66 | 4.3K | 11 | 4 |
| 635 | Government policy | 71 | 4.3K | 2 | 3 |
| 637 | Language Disorders | 126 | 4.2K | 42 | 31 |
| 638 | Small Business | 22 | 4.2K | 160 | 52 |
| 639 | Biogeochemistry | 69 | 4.2K | 136 | 142 |
| 640 | Geriatric Psychiatry | 180 | 4.2K | 15 | 36 |
| 641 | sexual behavior | 93 | 4.2K | 18 | 15 |
| 642 | Synapses | 66 | 4.2K | 10 | 7 |
| 643 | Neuroimaging | 157 | 4.1K | 1 | 1 |
| 644 | Histocompatibility Testing | 137 | 4.1K | 7 | 4 |
| 645 | fuel cells | 39 | 4.1K | 239 | 151 |
| 646 | Socioeconomic Factors | 120 | 4.1K | 8 | 11 |
| 647 | Australia | 214 | 4.1K | 69 | 77 |
| 648 | Molecular Imaging | 120 | 4.1K | 23 | 53 |
| 649 | Criminal psychology | 58 | 4.1K | 87 | 36 |
| 650 | Ethnology | 265 | 4.1K | 19 | 21 |
| 651 | Menopause | 151 | 4.0K | 1 | 2 |
| 652 | healthcare disparities | 162 | 4.0K | 4 | 3 |
| 653 | conflict management | 201 | 4.0K | 1 | 4 |
| 654 | families | 104 | 4.0K | 33 | 24 |
| 654 | Youth | 90 | 4.0K | 19 | 25 |
| 656 | Sociobiology | 70 | 4.0K | 3 | 5 |
| 657 | Suicide | 141 | 4.0K | 1 | 2 |
| 658 | Andrology | 110 | 4.0K | 10 | 6 |
| 659 | violence | 148 | 4.0K | 14 | 43 |
| 660 | Bioelectronics | 51 | 4.0K | 95 | 70 |
| 661 | Cross-Cultural Studies | 178 | 4.0K | 2 | 4 |
| 661 | scientific societies | 142 | 4.0K | 10 | 16 |
| 663 | crime | 74 | 3.9K | 45 | 21 |
| 664 | pain management | 97 | 3.9K | 14 | 14 |
| 665 | Clinical Pharmacology | 93 | 3.9K | 100 | 68 |
| 666 | Ceramics | 43 | 3.9K | 294 | 96 |
| 667 | Ventilation | 50 | 3.9K | 33 | 10 |
| 668 | Glass | 41 | 3.9K | 233 | 89 |
| 668 | pottery | 41 | 3.9K | 224 | 89 |
| 670 | Geriatric Oncology | 103 | 3.9K | 10 | 12 |
| 671 | drug resistance | 30 | 3.9K | 64 | 5 |
| 672 | industrial hygiene | 246 | 3.9K | 9 | 15 |
| 673 | Community Psychology | 69 | 3.8K | 26 | 39 |
| 674 | air quality management | 46 | 3.8K | 19 | 8 |
| 675 | energy development | 37 | 3.8K | 57 | 73 |
| 676 | European integration | 15 | 3.8K | 64 | 2 |
| 676 | European Economic Community | 15 | 3.8K | 63 | 2 |
| 678 | indoor air pollution | 46 | 3.8K | 20 | 8 |
| 678 | Sick building syndrome | 46 | 3.8K | 20 | 8 |
| 680 | Solid State Chemistry | 90 | 3.7K | 313 | 145 |
| 681 | Birth control | 111 | 3.7K | 11 | 14 |
| 682 | Asia | 257 | 3.7K | 50 | 68 |
| 683 | mathematical analysis | 144 | 3.7K | 176 | 74 |
| 684 | Fluid Dynamics | 34 | 3.7K | 261 | 44 |
| 685 | Humanities | 132 | 3.7K | 26 | 5 |
| 686 | DNA methylation | 83 | 3.7K | 1 | 1 |
| 687 | Amyotrophic Lateral Sclerosis | 77 | 3.6K | 4 | 2 |
| 688 | Quantum theory | 77 | 3.6K | 45 | 15 |
| 689 | animals | 74 | 3.6K | 94 | 25 |
| 690 | Space telescopes | 33 | 3.6K | 14 | 9 |
| 691 | nuclear magnetic resonance spectroscopy | 105 | 3.6K | 12 | 25 |
| 692 | Pregnancy | 123 | 3.6K | 13 | 15 |
| 693 | Ethics | 213 | 3.6K | 3 | 7 |
| 694 | Sustainable Development | 89 | 3.5K | 84 | 125 |
| 695 | Signal Processing | 68 | 3.5K | 228 | 88 |
| 696 | Hydrology | 66 | 3.5K | 419 | 292 |
| 697 | Sexual health | 113 | 3.5K | 25 | 21 |
| 698 | Pediatric Dermatology | 164 | 3.5K | 2 | 2 |
| 699 | Telemedicine | 85 | 3.5K | 3 | 2 |
| 700 | Public Health Administration | 125 | 3.5K | 22 | 11 |
| 701 | Fracture mechanics | 53 | 3.5K | 231 | 80 |
| 702 | Endocrine system | 367 | 3.5K | 2 | 1 |
| 703 | Bioenergetics | 81 | 3.4K | 57 | 58 |
| 704 | Industrial Policy | 50 | 3.4K | 7 | 2 |
| 705 | cell movement | 57 | 3.4K | 4 | 2 |
| 706 | locomotion | 67 | 3.4K | 37 | 24 |
| 706 | posture | 67 | 3.4K | 37 | 24 |
| 706 | gait | 67 | 3.4K | 37 | 24 |
| 706 | walking | 67 | 3.4K | 37 | 24 |
| 710 | Elderly | 451 | 3.4K | 14 | 16 |
| 711 | Pharmaceutical Technology | 71 | 3.4K | 128 | 84 |
| 712 | Investment analysis | 28 | 3.4K | 67 | 11 |
| 713 | Respiratory system | 107 | 3.4K | 6 | 12 |
| 714 | Evidence-Based Medicine | 188 | 3.3K | 20 | 26 |
| 715 | Political Sociology | 81 | 3.3K | 5 | 13 |
| 716 | Lipid metabolism | 40 | 3.3K | 10 | 7 |
| 716 | Lipid | 40 | 3.3K | 10 | 7 |
| 718 | immigration | 21 | 3.3K | 15 | 4 |
| 718 | migration policy | 22 | 3.3K | 18 | 4 |
| 718 | Asylum seeker | 21 | 3.3K | 14 | 4 |
| 721 | Environmental pollutants | 57 | 3.3K | 303 | 166 |
| 722 | Music | 102 | 3.3K | 21 | 7 |
| 723 | Wildlife conservation | 50 | 3.3K | 173 | 141 |
| 724 | Vocational guidance | 92 | 3.3K | 77 | 84 |
| 725 | Human-Computer Interaction | 99 | 3.2K | 35 | 41 |
| 726 | children | 86 | 3.2K | 5 | 22 |
| 727 | embryo transfer | 147 | 3.2K | 2 | 2 |
| 728 | Physical fitness | 64 | 3.2K | 71 | 60 |
| 729 | civil service | 34 | 3.2K | 31 | 10 |
| 730 | Machine Learning | 23 | 3.2K | 44 | 33 |
| 731 | Randomized Controlled Trials | 164 | 3.2K | 24 | 27 |
| 732 | Intelligence | 60 | 3.2K | 7 | 11 |
| 733 | administrative agencies | 40 | 3.1K | 16 | 4 |
| 734 | Knowledge | 73 | 3.1K | 13 | 2 |
| 735 | radiative transfer | 35 | 3.1K | 106 | 38 |
| 736 | Sexuality | 105 | 3.1K | 2 | 2 |
| 737 | tomography | 111 | 3.1K | 5 | 3 |
| 738 | risk factors | 156 | 3.1K | 5 | 25 |
| 739 | Europa | 41 | 3.0K | 35 | 6 |
| 740 | pollutants | 47 | 3.0K | 290 | 151 |
| 741 | Long-Term Care | 113 | 3.0K | 9 | 62 |
| 741 | Long-term care facilities | 113 | 3.0K | 9 | 62 |
| 743 | educational statistics | 23 | 3.0K | 10 | 5 |
| 744 | Emergency Medical Services | 201 | 3.0K | 3 | 9 |
| 745 | Globalization | 73 | 3.0K | 9 | 4 |
| 746 | Cell communication | 76 | 3.0K | 20 | 13 |
| 747 | Mass Spectrometry | 67 | 3.0K | 124 | 85 |
| 748 | innovation | 48 | 3.0K | 22 | 69 |
| 749 | Developmental Neurobiology | 105 | 3.0K | 4 | 4 |
| 750 | feeding behavior | 88 | 3.0K | 36 | 47 |
| 751 | mental processes | 139 | 3.0K | 2 | 2 |
| 752 | Forest Ecology | 51 | 3.0K | 155 | 107 |
| 753 | Cardiac electrophysiology | 75 | 3.0K | 6 | 5 |
| 753 | arrhythmia | 75 | 3.0K | 6 | 5 |
| 755 | breastfeeding | 121 | 2.9K | 4 | 4 |
| 756 | Statistical Mechanics | 85 | 2.9K | 69 | 44 |
| 757 | Economic Geography | 26 | 2.9K | 39 | 6 |
| 758 | Aerosols | 88 | 2.9K | 32 | 33 |
| 759 | Cytoskeleton | 66 | 2.9K | 5 | 4 |
| 760 | Nursing | 167 | 2.9K | 67 | 77 |
| 761 | preimplantation genetic diagnosis | 134 | 2.9K | 2 | 2 |
| 762 | biomedicine | 80 | 2.9K | 31 | 20 |
| 763 | consumers | 22 | 2.9K | 36 | 1 |
| 764 | Leadership | 44 | 2.8K | 18 | 42 |
| 765 | eugenics | 119 | 2.8K | 9 | 14 |
| 766 | Neural circuitry | 82 | 2.8K | 125 | 150 |
| 767 | Database Management | 51 | 2.8K | 105 | 73 |
| 768 | Investments | 67 | 2.8K | 13 | 4 |
| 769 | Japan | 89 | 2.8K | 235 | 109 |
| 770 | Genetic disorders | 87 | 2.7K | 15 | 25 |
| 771 | Venture Capital | 43 | 2.7K | 4 | 57 |
| 772 | Mechanical Engineering | 47 | 2.7K | 547 | 136 |
| 773 | Microfabrication | 37 | 2.7K | 23 | 2 |
| 774 | Landscape Ecology | 25 | 2.7K | 71 | 25 |
| 775 | Developed countries | 40 | 2.7K | 4 | 4 |
| 776 | Technological Innovations | 81 | 2.7K | 12 | 13 |
| 777 | Behavioral research | 52 | 2.7K | 6 | 2 |
| 778 | Social policy | 112 | 2.7K | 16 | 22 |
| 779 | Neurovirology | 67 | 2.7K | 5 | 4 |
| 780 | Energy metabolism | 72 | 2.7K | 54 | 72 |
| 781 | Seismology | 70 | 2.7K | 57 | 44 |
| 782 | Nonprofit organizations | 28 | 2.7K | 24 | 4 |
| 783 | drug evaluation | 79 | 2.7K | 39 | 26 |
| 784 | behavior modification | 49 | 2.6K | 64 | 58 |
| 785 | mammals | 124 | 2.6K | 32 | 45 |
| 786 | Eastern Europe | 102 | 2.6K | 18 | 4 |
| 787 | Socialization | 50 | 2.6K | 27 | 27 |
| 788 | Synthetic biology | 66 | 2.6K | 11 | 11 |
| 789 | cell membrane | 68 | 2.6K | 56 | 64 |
| 790 | ethnic groups | 77 | 2.6K | 2 | 3 |
| 791 | energy conservation | 31 | 2.5K | 413 | 268 |
| 792 | Forensic Psychiatry | 97 | 2.5K | 12 | 13 |
| 793 | Macroeconomics | 33 | 2.5K | 14 | 9 |
| 794 | Pharmacognosy | 73 | 2.5K | 180 | 217 |
| 795 | Cell division | 62 | 2.5K | 21 | 22 |
| 796 | sustainability | 45 | 2.5K | 31 | 72 |
| 797 | Hearing | 94 | 2.5K | 47 | 51 |
| 798 | Safety management | 92 | 2.5K | 3 | 2 |
| 799 | Pituitary gland | 62 | 2.5K | 2 | 4 |
| 800 | Ergonomics | 120 | 2.5K | 71 | 72 |
| 801 | foreign exchange | 43 | 2.5K | 9 | 10 |
| 802 | Culture | 122 | 2.5K | 25 | 18 |
| 803 | Algebra | 108 | 2.4K | 98 | 27 |
| 804 | Travel | 108 | 2.4K | 25 | 29 |
| 805 | Family Therapy | 110 | 2.4K | 22 | 28 |
| 806 | probabilities | 106 | 2.4K | 96 | 50 |
| 807 | Input-output analysis | 34 | 2.4K | 9 | 4 |
| 808 | Marine Meteorology | 57 | 2.4K | 69 | 67 |
| 809 | Palliative Care | 115 | 2.4K | 24 | 46 |
| 810 | Simulation Methods | 18 | 2.4K | 208 | 6 |
| 811 | Intellectual disability | 75 | 2.4K | 68 | 69 |
| 812 | Neurogenetics | 65 | 2.4K | 2 | 1 |
| 813 | Natural resources | 32 | 2.3K | 117 | 63 |
| 814 | Radioisotopes | 116 | 2.3K | 43 | 32 |
| 815 | Reading | 47 | 2.3K | 66 | 39 |
| 816 | Nutritional support | 23 | 2.3K | 8 | 2 |
| 817 | Environmental Management | 65 | 2.3K | 379 | 502 |
| 818 | micromechanics | 37 | 2.3K | 60 | 23 |
| 819 | Teratology | 65 | 2.3K | 16 | 28 |
| 820 | Fungi | 38 | 2.3K | 202 | 157 |
| 821 | Africa | 121 | 2.3K | 69 | 53 |
| 822 | optical phenomena | 51 | 2.3K | 1 | 2 |
| 823 | biomimicry | 39 | 2.3K | 1 | 2 |
| 824 | water supply | 27 | 2.2K | 273 | 181 |
| 825 | Informatics | 42 | 2.2K | 62 | 74 |
| 826 | Industrial Safety | 112 | 2.2K | 24 | 68 |
| 827 | Paleoclimatology | 50 | 2.2K | 170 | 152 |
| 828 | Food Policy | 57 | 2.2K | 12 | 18 |
| 829 | Consumer Protection | 16 | 2.2K | 25 | 2 |
| 830 | Bacterial diseases | 35 | 2.2K | 4 | 2 |
| 831 | Social perception | 29 | 2.2K | 5 | 6 |
| 832 | Appetite | 66 | 2.2K | 44 | 47 |
| 833 | Forest Management | 43 | 2.2K | 171 | 139 |
| 834 | Ecosystem management | 23 | 2.2K | 134 | 55 |
| 835 | psychophysics | 74 | 2.2K | 4 | 5 |
| 836 | Protein engineering | 37 | 2.2K | 11 | 12 |
| 837 | Quality Control | 32 | 2.2K | 315 | 107 |
| 838 | income | 28 | 2.1K | 10 | 2 |
| 838 | Wealth | 28 | 2.1K | 10 | 2 |
| 840 | Paleoecology | 54 | 2.1K | 131 | 128 |
| 841 | Organ transplantation | 110 | 2.1K | 8 | 11 |
| 842 | Geometry | 121 | 2.1K | 31 | 24 |
| 843 | Cognitive Behavioral Therapy | 110 | 2.1K | 1 | 7 |
| 844 | social science | 11 | 2.1K | 34 | 7 |
| 845 | Brain damage | 84 | 2.1K | 7 | 11 |
| 846 | Plant diseases | 42 | 2.1K | 509 | 299 |
| 847 | negotiation | 160 | 2.1K | 1 | 1 |
| 848 | Multivariate Analysis | 31 | 2.1K | 58 | 25 |
| 849 | association | 39 | 2.1K | 1 | 3 |
| 849 | Organizations | 39 | 2.1K | 1 | 3 |
| 851 | Gene expression | 39 | 2.1K | 22 | 22 |
| 852 | emergency management | 105 | 2.1K | 4 | 29 |
| 853 | actuators | 56 | 2.1K | 329 | 336 |
| 853 | transducers | 56 | 2.1K | 329 | 336 |
| 855 | hygiene | 61 | 2.1K | 18 | 19 |
| 856 | Learning disabilities | 55 | 2.1K | 93 | 55 |
| 857 | women | 101 | 2.1K | 10 | 5 |
| 858 | Industrial Organization | 36 | 2.1K | 5 | 2 |
| 859 | Androgens | 34 | 2.1K | 15 | 10 |
| 860 | DNA repair | 47 | 2.1K | 13 | 20 |
| 861 | technical education | 22 | 2.0K | 85 | 7 |
| 862 | Information Systems | 91 | 2.0K | 40 | 92 |
| 863 | Performance | 23 | 2.0K | 37 | 13 |
| 864 | Portfolio Management | 37 | 2.0K | 18 | 7 |
| 865 | Brachytherapy | 91 | 2.0K | 10 | 5 |
| 866 | Hemostasis | 106 | 2.0K | 16 | 33 |
| 867 | software | 60 | 2.0K | 20 | 33 |
| 868 | Law and Economics | 51 | 2.0K | 3 | 1 |
| 869 | Drug discovery | 50 | 2.0K | 2 | 2 |
| 870 | Cognitive Psychology | 37 | 2.0K | 14 | 2 |
| 871 | Ultrasonics | 35 | 2.0K | 140 | 79 |
| 872 | embryonic development | 34 | 2.0K | 39 | 22 |
| 873 | Neonatology | 56 | 2.0K | 27 | 23 |
| 874 | Demographic research | 43 | 2.0K | 11 | 14 |
| 875 | Photography | 483 | 2.0K | 29 | 35 |
| 876 | primary prevention | 77 | 1.9K | 8 | 10 |
| 877 | Composite Materials | 30 | 1.9K | 935 | 662 |
| 878 | peptides | 55 | 1.9K | 38 | 13 |
| 878 | rare diseases | 66 | 1.9K | 18 | 39 |
| 880 | Melanoma | 44 | 1.9K | 5 | 7 |
| 881 | Immunopharmacology | 53 | 1.9K | 90 | 66 |
| 882 | strategy | 142 | 1.9K | 1 | 2 |
| 883 | Hematopoietic stem cell transplantation | 54 | 1.9K | 8 | 10 |
| 884 | Algae | 47 | 1.9K | 92 | 92 |
| 885 | Precision medicine | 93 | 1.9K | 1 | 1 |
| 886 | voice | 59 | 1.9K | 15 | 12 |
| 887 | occupational health and safety | 104 | 1.9K | 10 | 13 |
| 888 | Freeze-Drying | 100 | 1.8K | 8 | 11 |
| 888 | Hypothermia | 100 | 1.8K | 8 | 11 |
| 888 | Freeze Drying | 100 | 1.8K | 8 | 11 |
| 891 | Regional Economics | 13 | 1.8K | 130 | 9 |
| 892 | Frontotemporal lobar degeneration | 56 | 1.8K | 5 | 5 |
| 893 | Paleogeography | 40 | 1.8K | 152 | 137 |
| 894 | Capitalism | 27 | 1.8K | 4 | 2 |
| 895 | Regionalism | 10 | 1.8K | 70 | 2 |
| 896 | Energy Storage | 30 | 1.8K | 272 | 181 |
| 897 | Environmental Economics | 23 | 1.8K | 32 | 25 |
| 898 | ethnicity | 93 | 1.8K | 11 | 6 |
| 899 | History | 238 | 1.8K | 38 | 9 |
| 900 | Business Ethics | 27 | 1.8K | 168 | 163 |
| 901 | Religion | 165 | 1.8K | 27 | 9 |
| 902 | Topology | 71 | 1.8K | 6 | 4 |
| 903 | anesthesia | 139 | 1.8K | 3 | 3 |
| 904 | Land Use Planning | 14 | 1.8K | 96 | 26 |
| 905 | Forecasting | 30 | 1.8K | 46 | 36 |
| 906 | Crystal growth | 25 | 1.8K | 243 | 75 |
| 907 | exobiology | 45 | 1.8K | 18 | 41 |
| 908 | Particle Physics | 42 | 1.8K | 86 | 33 |
| 909 | Biological Systems | 38 | 1.8K | 37 | 23 |
| 910 | Electrical Engineering | 463 | 1.8K | 85 | 263 |
| 911 | World Bank | 13 | 1.8K | 5 | 2 |
| 912 | Social Change | 54 | 1.7K | 26 | 111 |
| 913 | Cellular senescence | 29 | 1.7K | 81 | 54 |
| 914 | Language Acquisition | 41 | 1.7K | 27 | 24 |
| 915 | role | 33 | 1.7K | 35 | 28 |
| 916 | X-rays | 69 | 1.7K | 11 | 10 |
| 917 | Synaptic Transmission | 32 | 1.7K | 53 | 35 |
| 918 | Telecommunication | 61 | 1.7K | 296 | 198 |
| 919 | Multiple sclerosis | 131 | 1.7K | 5 | 8 |
| 920 | Agricultural Chemistry | 38 | 1.7K | 622 | 467 |
| 920 | Tissue Engineering | 39 | 1.7K | 14 | 21 |
| 922 | mental health policy | 82 | 1.7K | 3 | 19 |
| 922 | Lymphoma | 218 | 1.7K | 8 | 8 |
| 924 | Quality Assurance | 45 | 1.7K | 13 | 3 |
| 925 | agricultural policy | 28 | 1.7K | 27 | 21 |
| 926 | Hypertension in pregnancy | 64 | 1.7K | 9 | 7 |
| 927 | Flow cytometry | 65 | 1.7K | 9 | 22 |
| 928 | Criminal Law | 40 | 1.6K | 13 | 14 |
| 928 | catalytic activity | 16 | 1.6K | 216 | 71 |
| 930 | food technology | 51 | 1.6K | 491 | 484 |
| 930 | Seaweed | 42 | 1.6K | 54 | 77 |
| 932 | geological modeling | 21 | 1.6K | 104 | 60 |
| 933 | Semiconductors | 69 | 1.6K | 235 | 179 |
| 934 | Birds | 78 | 1.6K | 143 | 142 |
| 935 | Parasites | 54 | 1.6K | 191 | 201 |
| 936 | Rheology | 15 | 1.6K | 207 | 56 |
| 937 | Diagnosis | 90 | 1.6K | 15 | 10 |
| 938 | Food Microbiology | 35 | 1.6K | 245 | 260 |
| 939 | Pharmacokinetics | 52 | 1.6K | 66 | 84 |
| 939 | Economic planning | 37 | 1.6K | 20 | 23 |
| 941 | Artificial Organs | 97 | 1.6K | 16 | 30 |
| 942 | Nanophotonics | 22 | 1.6K | 42 | 10 |
| 943 | Experimental Design | 17 | 1.6K | 76 | 54 |
| 944 | Geographic information systems | 52 | 1.6K | 72 | 41 |
| 945 | Behavioral Genetics | 37 | 1.6K | 24 | 28 |
| 945 | Water pollution | 40 | 1.6K | 710 | 752 |
| 947 | Neuroplasticity | 46 | 1.6K | 7 | 3 |
| 948 | Oral History | 12 | 1.6K | 1 | 1 |
| 949 | Osteoporosis | 40 | 1.6K | 10 | 16 |
| 950 | biochemical markers | 58 | 1.6K | 32 | 21 |
| 951 | Industrial Ecology | 15 | 1.6K | 36 | 16 |
| 952 | Quantum Computing | 32 | 1.6K | 8 | 5 |
| 953 | Medicinal plants | 55 | 1.6K | 151 | 247 |
| 954 | Quantum electronics | 12 | 1.5K | 434 | 22 |
| 955 | Combinatorial analysis | 87 | 1.5K | 75 | 57 |
| 956 | Geochemical Modeling | 20 | 1.5K | 88 | 62 |
| 957 | health workforce | 38 | 1.5K | 5 | 8 |
| 957 | epidemiologic methods | 35 | 1.5K | 5 | 3 |
| 959 | neuronal plasticity | 43 | 1.5K | 5 | 3 |
| 960 | Ethnic relations | 44 | 1.5K | 29 | 9 |
| 961 | Human Geography | 53 | 1.5K | 156 | 155 |
| 962 | Antiviral agents | 62 | 1.5K | 3 | 8 |
| 963 | Cell adhesion | 28 | 1.5K | 2 | 2 |
| 964 | gastrointestinal tract | 37 | 1.5K | 7 | 21 |
| 965 | liver | 70 | 1.5K | 3 | 3 |
| 966 | Cosmochemistry | 55 | 1.5K | 62 | 128 |
| 967 | Regional Development | 22 | 1.5K | 27 | 9 |
| 968 | School Psychology | 42 | 1.5K | 70 | 69 |
| 969 | Development planning | 21 | 1.5K | 10 | 8 |
| 969 | Atomic spectroscopy | 35 | 1.5K | 222 | 109 |
| 971 | drug control | 32 | 1.5K | 51 | 31 |
| 972 | Environmental Psychology | 22 | 1.5K | 32 | 52 |
| 973 | sports injuries | 99 | 1.5K | 6 | 9 |
| 974 | Smart Materials | 25 | 1.5K | 167 | 84 |
| 975 | Radiation Oncology | 33 | 1.5K | 30 | 15 |
| 975 | Multiple Myeloma | 213 | 1.5K | 8 | 9 |
| 977 | industrial relations | 61 | 1.5K | 79 | 60 |
| 978 | sex crimes | 56 | 1.5K | 42 | 62 |
| 979 | toxicity testing | 40 | 1.5K | 63 | 76 |
| 979 | Aggression | 41 | 1.5K | 20 | 54 |
| 981 | auditory perception | 14 | 1.4K | 60 | 19 |
| 982 | Quantitative Research | 33 | 1.4K | 19 | 22 |
| 983 | Religion and Psychology | 64 | 1.4K | 8 | 6 |
| 984 | Marriage | 47 | 1.4K | 43 | 41 |
| 985 | Credit | 6 | 1.4K | 41 | 8 |
| 985 | Money | 6 | 1.4K | 167 | 14 |
| 987 | Body Image | 30 | 1.4K | 14 | 18 |
| 988 | Juvenile delinquency | 60 | 1.4K | 16 | 17 |
| 989 | Nanomedicine | 20 | 1.4K | 10 | 4 |
| 990 | Chronobiology | 47 | 1.4K | 10 | 26 |
| 990 | biological clocks | 47 | 1.4K | 10 | 26 |
| 990 | circadian rhythm | 47 | 1.4K | 10 | 26 |
| 993 | Early Childhood Education | 34 | 1.4K | 71 | 25 |
| 994 | War | 59 | 1.4K | 4 | 6 |
| 995 | Consumer education | 11 | 1.4K | 85 | 15 |
| 996 | Geodynamics | 15 | 1.4K | 394 | 200 |
| 997 | Health care reform | 114 | 1.4K | 1 | 1 |
| 998 | Democracy | 140 | 1.4K | 1 | 3 |
| 999 | biological rhythms | 45 | 1.4K | 9 | 27 |
| 1000 | Structural design | 24 | 1.4K | 128 | 66 |