| 1 | Medicine | 11,938 | 1.5M | 2 | 2 |
| 2 | Science | 7,287 | 1.4M | 19 | 7 |
| 3 | Biology | 6,115 | 1.2M | 26 | 8 |
| 4 | Physics | 3,407 | 1.0M | 101 | 15 |
| 5 | Natural history | 1,345 | 837.9K | 28 | 6 |
| 6 | Neurology | 7,289 | 630.9K | 5 | 4 |
| 7 | Cell Biology | 2,505 | 604.3K | 10 | 6 |
| 8 | Cytology | 2,580 | 581.1K | 15 | 7 |
| 9 | Molecular Biology | 4,406 | 574.0K | 15 | 5 |
| 10 | Human genetics | 1,544 | 501.7K | 4 | 2 |
| 11 | Surgery | 2,778 | 486.8K | 1 | 1 |
| 12 | Virology | 1,334 | 444.0K | 16 | 6 |
| 13 | Biochemistry | 4,813 | 379.4K | 34 | 15 |
| 14 | Cardiovascular system | 2,955 | 302.2K | 2 | 2 |
| 15 | Immunology | 2,402 | 294.9K | 6 | 4 |
| 16 | Genetics | 1,791 | 270.8K | 13 | 5 |
| 17 | Research | 4,292 | 268.9K | 12 | 6 |
| 18 | Endocrinology | 3,384 | 255.7K | 3 | 3 |
| 19 | Psychiatry | 2,652 | 246.6K | 9 | 7 |
| 20 | Hypertension | 2,299 | 243.0K | 2 | 1 |
| 21 | Cancer | 2,357 | 230.7K | 5 | 6 |
| 22 | Immunity | 992 | 230.0K | 6 | 4 |
| 23 | Medical genetics | 1,818 | 223.2K | 6 | 3 |
| 24 | Chemistry | 2,235 | 212.4K | 146 | 65 |
| 25 | Hematology | 3,134 | 204.1K | 8 | 7 |
| 26 | Microbiology | 1,856 | 189.0K | 45 | 20 |
| 27 | Metabolism | 2,112 | 179.6K | 4 | 2 |
| 28 | Metabolic diseases | 1,767 | 179.4K | 4 | 3 |
| 29 | Neurophysiology | 1,180 | 153.1K | 26 | 7 |
| 30 | Public Health | 2,308 | 139.0K | 15 | 11 |
| 31 | Biotechnology | 765 | 137.0K | 90 | 9 |
| 32 | Oncology | 1,109 | 127.5K | 4 | 3 |
| 33 | Biophysics | 3,029 | 125.4K | 12 | 9 |
| 34 | Neurons | 313 | 121.4K | 15 | 8 |
| 35 | Bioengineering | 543 | 118.1K | 67 | 9 |
| 36 | Pathology | 1,304 | 115.5K | 5 | 2 |
| 37 | Immune system | 382 | 110.9K | 8 | 4 |
| 38 | Nervous system | 1,102 | 108.0K | 5 | 5 |
| 39 | Physiology | 1,056 | 106.0K | 47 | 8 |
| 40 | Psychophysiology | 842 | 105.2K | 36 | 9 |
| 41 | Allergy | 918 | 104.2K | 2 | 4 |
| 42 | Biochemical Engineering | 333 | 102.3K | 105 | 7 |
| 43 | Pediatrics | 1,503 | 95.9K | 17 | 10 |
| 44 | Developmental Biology | 822 | 93.3K | 20 | 10 |
| 45 | Medical Oncology | 1,661 | 90.4K | 4 | 3 |
| 46 | Epidemiology | 1,345 | 86.7K | 16 | 13 |
| 47 | Immunotherapy | 432 | 86.0K | 8 | 4 |
| 48 | Pediatric Neurology | 691 | 84.7K | 3 | 4 |
| 49 | Psychopharmacology | 549 | 83.0K | 11 | 5 |
| 50 | Cytogenetics | 630 | 81.4K | 5 | 4 |
| 51 | Radiobiology | 1,315 | 79.7K | 2 | 2 |
| 52 | Mental Disorders | 1,080 | 78.1K | 15 | 14 |
| 53 | Nanotechnology | 664 | 75.8K | 155 | 71 |
| 54 | Transplantation | 1,369 | 75.7K | 2 | 2 |
| 55 | Pharmacology | 1,084 | 75.5K | 75 | 17 |
| 56 | Critical Care | 872 | 72.4K | 3 | 3 |
| 57 | Critical Care Medicine | 867 | 72.4K | 3 | 3 |
| 58 | Alzheimer's disease | 1,224 | 71.4K | 3 | 4 |
| 59 | Nutrition | 1,392 | 70.3K | 6 | 6 |
| 60 | Medical innovations | 549 | 67.4K | 2 | 2 |
| 61 | Biomedical Engineering | 1,130 | 67.2K | 17 | 8 |
| 62 | drug development | 539 | 65.8K | 2 | 2 |
| 63 | Cell differentiation | 572 | 65.7K | 9 | 8 |
| 64 | Dementia | 1,121 | 65.3K | 3 | 2 |
| 65 | Medical Physics | 1,764 | 63.4K | 1 | 3 |
| 66 | Diabetes | 879 | 63.2K | 6 | 6 |
| 67 | arthritis | 1,109 | 63.1K | 1 | 1 |
| 68 | Diabetes mellitus | 770 | 60.6K | 5 | 6 |
| 69 | Neurobiology | 683 | 58.6K | 10 | 7 |
| 70 | Dermatology | 1,709 | 58.3K | 2 | 3 |
| 71 | Biocompatible Materials | 594 | 55.5K | 85 | 31 |
| 72 | Embryology | 453 | 53.8K | 17 | 10 |
| 73 | Urology | 1,205 | 53.6K | 9 | 11 |
| 74 | Genetic regulation | 334 | 53.4K | 7 | 7 |
| 75 | Obstetrics | 1,179 | 52.7K | 5 | 5 |
| 76 | Pharmaceutical Chemistry | 711 | 52.4K | 29 | 13 |
| 77 | Medical Microbiology | 444 | 51.3K | 17 | 8 |
| 78 | Developmental Genetics | 278 | 49.4K | 7 | 6 |
| 79 | Environment | 632 | 48.5K | 85 | 85 |
| 80 | Brain | 820 | 47.5K | 25 | 24 |
| 81 | Rheumatology | 778 | 47.5K | 1 | 1 |
| 82 | Gene expression regulation | 295 | 47.3K | 5 | 5 |
| 83 | Orthopedics | 937 | 46.8K | 2 | 2 |
| 84 | Radiography | 981 | 46.5K | 1 | 1 |
| 85 | Anatomy | 404 | 46.3K | 29 | 10 |
| 86 | Growth | 306 | 45.0K | 30 | 17 |
| 87 | Mental illness | 657 | 44.7K | 10 | 12 |
| 88 | Psychology | 781 | 44.5K | 93 | 76 |
| 89 | Diet | 627 | 44.4K | 8 | 8 |
| 90 | genome | 251 | 43.9K | 21 | 22 |
| 91 | viral genetics | 210 | 43.6K | 5 | 6 |
| 92 | Neurochemistry | 580 | 42.1K | 17 | 10 |
| 93 | Environmental Health | 679 | 41.8K | 81 | 72 |
| 94 | Sleep | 1,051 | 41.8K | 2 | 4 |
| 95 | Sleep Disorders | 1,008 | 39.2K | 3 | 4 |
| 96 | Host-parasite interactions | 249 | 36.5K | 14 | 8 |
| 97 | pain | 543 | 35.8K | 4 | 4 |
| 98 | viruses | 426 | 35.8K | 26 | 24 |
| 99 | Oncogenes | 296 | 35.8K | 8 | 6 |
| 100 | Behavior | 746 | 35.8K | 41 | 54 |
| 101 | Health Policy | 772 | 35.2K | 6 | 5 |
| 102 | Attention | 751 | 33.9K | 11 | 7 |
| 103 | Clinical Chemistry | 634 | 33.5K | 11 | 11 |
| 104 | Obesity | 679 | 33.4K | 7 | 7 |
| 105 | Perception | 698 | 33.0K | 13 | 9 |
| 106 | Geriatrics | 941 | 32.9K | 18 | 26 |
| 107 | Memory | 659 | 31.9K | 18 | 18 |
| 108 | Diagnostic Imaging | 700 | 31.8K | 5 | 6 |
| 109 | Liver diseases | 438 | 31.5K | 11 | 25 |
| 110 | Cognitive neuroscience | 162 | 31.5K | 37 | 17 |
| 111 | Genomics | 586 | 31.2K | 17 | 11 |
| 112 | United States | 849 | 30.5K | 117 | 90 |
| 113 | diseases | 50 | 30.5K | 10 | 4 |
| 114 | Disease | 50 | 30.5K | 5 | 3 |
| 115 | Visual Perception | 646 | 30.0K | 13 | 9 |
| 116 | Optics | 576 | 29.2K | 172 | 51 |
| 117 | Radiology | 1,222 | 28.8K | 1 | 1 |
| 118 | Heart Failure | 584 | 28.0K | 1 | 1 |
| 119 | Cerebral cortex | 227 | 28.0K | 11 | 5 |
| 120 | Cell metabolism | 135 | 27.9K | 5 | 6 |
| 121 | Homeostasis | 131 | 27.8K | 4 | 6 |
| 122 | gene mapping | 356 | 27.6K | 18 | 26 |
| 123 | Respiration | 498 | 26.6K | 9 | 7 |
| 124 | Aging | 648 | 26.4K | 26 | 29 |
| 125 | Therapeutics | 480 | 26.2K | 11 | 13 |
| 126 | Health Services Administration | 407 | 24.7K | 3 | 2 |
| 127 | fertility | 506 | 24.5K | 2 | 2 |
| 128 | Infertility | 505 | 24.5K | 2 | 2 |
| 129 | Environmental Toxicology | 232 | 24.3K | 26 | 12 |
| 130 | Thrombosis | 354 | 24.2K | 4 | 3 |
| 131 | nanoscience | 181 | 23.4K | 202 | 88 |
| 132 | vascular diseases | 316 | 23.4K | 3 | 3 |
| 133 | Materials | 211 | 22.3K | 760 | 348 |
| 134 | Toxicology | 351 | 22.1K | 173 | 67 |
| 135 | Bacterial infections | 105 | 21.8K | 15 | 4 |
| 136 | Neuropsychology | 340 | 21.8K | 42 | 21 |
| 137 | drug therapy | 565 | 21.8K | 18 | 25 |
| 138 | mycoses | 101 | 21.7K | 13 | 4 |
| 139 | cell physiology | 290 | 21.3K | 24 | 24 |
| 140 | gene therapy | 274 | 20.6K | 8 | 5 |
| 141 | Emergency Medicine | 843 | 20.6K | 1 | 2 |
| 142 | brain mapping | 200 | 20.4K | 3 | 3 |
| 143 | nucleic acids | 225 | 20.1K | 56 | 78 |
| 144 | Computer Vision | 133 | 19.8K | 29 | 20 |
| 145 | Leukemia | 223 | 19.7K | 17 | 11 |
| 146 | miniaturization | 189 | 18.8K | 76 | 60 |
| 147 | Schizophrenia | 363 | 18.7K | 14 | 15 |
| 148 | Clinical Immunology | 574 | 18.0K | 2 | 2 |
| 149 | Virulence | 211 | 17.9K | 16 | 14 |
| 150 | Chromosome mapping | 284 | 17.8K | 14 | 11 |
| 151 | Stem cells | 349 | 17.7K | 9 | 9 |
| 152 | Medical Laboratory Science | 335 | 17.6K | 13 | 17 |
| 153 | Cognitive Science | 89 | 17.5K | 89 | 23 |
| 154 | Computational Biology | 269 | 17.5K | 57 | 71 |
| 155 | Anxiety Disorders | 228 | 17.1K | 3 | 5 |
| 156 | Nanostructures | 52 | 17.0K | 233 | 35 |
| 157 | Cognition | 221 | 16.7K | 72 | 48 |
| 158 | human behavior | 227 | 16.7K | 93 | 84 |
| 159 | Lung Transplantation | 255 | 16.6K | 4 | 7 |
| 159 | Heart transplantation | 255 | 16.6K | 4 | 7 |
| 161 | medical education | 555 | 16.6K | 9 | 18 |
| 162 | Ophthalmology | 251 | 16.1K | 85 | 49 |
| 163 | Child | 629 | 16.1K | 20 | 31 |
| 164 | Kidney diseases | 362 | 16.0K | 3 | 1 |
| 165 | Anxiety | 214 | 16.0K | 4 | 5 |
| 166 | Materials Science | 158 | 15.8K | 569 | 259 |
| 167 | transport vesicles | 35 | 15.7K | 8 | 27 |
| 168 | Drug delivery systems | 122 | 15.7K | 38 | 7 |
| 169 | Psychosomatic Medicine | 414 | 15.7K | 2 | 4 |
| 170 | Genetic engineering | 185 | 15.6K | 43 | 18 |
| 171 | Health | 367 | 15.5K | 29 | 21 |
| 172 | Photochemistry | 210 | 15.1K | 10 | 3 |
| 173 | Light | 196 | 15.0K | 5 | 17 |
| 174 | infection | 90 | 14.9K | 124 | 12 |
| 175 | Neuropsychiatry | 267 | 14.7K | 3 | 3 |
| 176 | Cardiovascular diseases | 600 | 14.6K | 3 | 3 |
| 177 | Research Design | 222 | 14.5K | 14 | 22 |
| 178 | Nephrology | 316 | 14.4K | 2 | 1 |
| 179 | Infections | 69 | 14.4K | 79 | 11 |
| 180 | Plant cells | 49 | 14.4K | 234 | 96 |
| 181 | Genetic therapy | 292 | 14.3K | 7 | 10 |
| 182 | Reproduction | 298 | 14.2K | 55 | 37 |
| 183 | Image Processing | 186 | 14.0K | 106 | 72 |
| 184 | Diagnostic microbiology | 165 | 14.0K | 35 | 30 |
| 185 | Histology | 187 | 13.8K | 42 | 31 |
| 186 | Parasitic Diseases | 43 | 13.7K | 326 | 18 |
| 187 | Women's health | 352 | 13.7K | 7 | 4 |
| 188 | Immunopathology | 311 | 13.6K | 8 | 8 |
| 189 | Cell death | 115 | 13.2K | 61 | 48 |
| 190 | Chronic diseases | 136 | 13.0K | 26 | 38 |
| 191 | Combinatorial chemistry | 142 | 13.0K | 8 | 6 |
| 192 | Hemodynamics | 217 | 12.9K | 3 | 5 |
| 193 | preventive medicine | 272 | 12.9K | 19 | 25 |
| 194 | Physical Therapy | 263 | 12.8K | 23 | 22 |
| 195 | Health insurance | 221 | 12.4K | 4 | 5 |
| 196 | Parenteral nutrition | 225 | 12.0K | 5 | 19 |
| 197 | Depression | 154 | 11.9K | 3 | 5 |
| 198 | rehabilitation | 342 | 11.9K | 34 | 50 |
| 199 | Signal Transduction | 127 | 11.5K | 41 | 20 |
| 200 | health behavior | 327 | 11.3K | 12 | 14 |
| 201 | Hormones | 217 | 11.3K | 14 | 10 |
| 202 | Botany | 57 | 11.3K | 935 | 313 |
| 203 | Plants | 48 | 11.1K | 382 | 110 |
| 204 | Orthopedic Surgery | 282 | 11.1K | 1 | 2 |
| 205 | Lipids | 169 | 11.1K | 15 | 17 |
| 206 | Child Development | 244 | 11.1K | 75 | 88 |
| 207 | behavioral medicine | 231 | 10.9K | 21 | 43 |
| 208 | Adolescent Medicine | 156 | 10.8K | 14 | 12 |
| 209 | psychotherapy | 187 | 10.5K | 36 | 42 |
| 210 | Neurosurgery | 208 | 10.4K | 9 | 11 |
| 211 | Health promotion | 247 | 10.4K | 28 | 28 |
| 212 | plant molecular biology | 37 | 10.3K | 358 | 119 |
| 213 | Medical Technology | 233 | 10.0K | 6 | 5 |
| 214 | Bones | 156 | 9.9K | 6 | 8 |
| 215 | Pancreatic diseases | 76 | 9.8K | 7 | 1 |
| 216 | Muscles | 260 | 9.7K | 3 | 4 |
| 217 | Oxidation-reduction | 82 | 9.5K | 20 | 10 |
| 218 | DNA polymerases | 68 | 9.5K | 27 | 34 |
| 219 | free radicals | 103 | 9.4K | 58 | 33 |
| 220 | Bioinformatics | 188 | 9.4K | 68 | 112 |
| 221 | United Kingdom | 130 | 9.4K | 79 | 46 |
| 222 | Biomechanics | 143 | 9.2K | 50 | 34 |
| 223 | cardiac catheterization | 353 | 9.1K | 2 | 1 |
| 224 | Membranes | 158 | 9.1K | 89 | 85 |
| 225 | blood transfusion | 274 | 8.9K | 14 | 8 |
| 226 | Biometrics | 221 | 8.9K | 22 | 34 |
| 227 | Pharmacogenetics | 190 | 8.8K | 5 | 11 |
| 228 | Substance Abuse | 276 | 8.8K | 43 | 38 |
| 229 | Medical Anthropology | 188 | 8.8K | 35 | 45 |
| 230 | Bipolar Disorder | 134 | 8.7K | 5 | 5 |
| 231 | Eating Disorders | 181 | 8.7K | 18 | 13 |
| 232 | Sports Medicine | 306 | 8.6K | 57 | 92 |
| 233 | Feeding and Eating Disorders | 174 | 8.6K | 18 | 13 |
| 234 | Chemotherapy | 254 | 8.5K | 9 | 9 |
| 235 | Molecular Microbiology | 98 | 8.5K | 43 | 38 |
| 236 | Spine | 190 | 8.4K | 8 | 17 |
| 237 | Bacteriology | 108 | 8.4K | 183 | 155 |
| 238 | Neuromuscular diseases | 236 | 8.3K | 3 | 4 |
| 239 | Antioxidants | 67 | 8.3K | 21 | 10 |
| 240 | Thorax | 292 | 8.2K | 3 | 7 |
| 241 | cloning | 85 | 8.2K | 11 | 9 |
| 242 | Electrophysiology | 314 | 8.0K | 4 | 5 |
| 243 | Adolescent | 441 | 8.0K | 32 | 60 |
| 244 | Bone diseases | 75 | 7.9K | 5 | 5 |
| 245 | Analytical Chemistry | 145 | 7.8K | 542 | 345 |
| 246 | Molecular structure | 76 | 7.8K | 228 | 94 |
| 247 | Environmental monitoring | 177 | 7.7K | 179 | 199 |
| 248 | Nuclear Medicine | 227 | 7.6K | 12 | 27 |
| 249 | Bioorganic chemistry | 169 | 7.5K | 151 | 122 |
| 250 | Clinical Psychology | 129 | 7.5K | 74 | 77 |
| 251 | Child psychology | 150 | 7.4K | 111 | 129 |
| 252 | Gerontology | 353 | 7.4K | 47 | 48 |
| 253 | Photonics | 89 | 7.4K | 257 | 148 |
| 254 | Ecology | 169 | 7.4K | 738 | 804 |
| 255 | Speech Disorders | 139 | 7.4K | 70 | 38 |
| 256 | Sociology | 174 | 7.3K | 192 | 171 |
| 257 | Drug design | 102 | 7.3K | 39 | 10 |
| 258 | Digestive system diseases | 315 | 7.3K | 4 | 6 |
| 259 | Statistics | 176 | 7.2K | 181 | 142 |
| 260 | Psycholinguistics | 94 | 7.2K | 73 | 49 |
| 261 | Technology | 117 | 7.1K | 428 | 187 |
| 262 | nuclear magnetic resonance | 195 | 7.1K | 26 | 26 |
| 263 | Magnetic Resonance Spectroscopy | 195 | 7.0K | 26 | 20 |
| 264 | Health Services Research | 230 | 6.9K | 40 | 57 |
| 265 | behavior therapy | 202 | 6.9K | 14 | 22 |
| 266 | Speech | 127 | 6.8K | 52 | 32 |
| 267 | Clinical Trials | 201 | 6.7K | 5 | 7 |
| 268 | epilepsy | 220 | 6.7K | 7 | 10 |
| 269 | Optical materials | 87 | 6.6K | 355 | 230 |
| 270 | Developmental Disabilities | 116 | 6.5K | 61 | 57 |
| 271 | Radiotherapy | 338 | 6.5K | 2 | 2 |
| 272 | histological techniques | 114 | 6.4K | 5 | 9 |
| 273 | enzymes | 123 | 6.3K | 53 | 32 |
| 274 | General Surgery | 305 | 6.3K | 2 | 4 |
| 275 | Vaccines | 163 | 6.3K | 74 | 62 |
| 276 | Enteral nutrition | 120 | 6.2K | 9 | 32 |
| 277 | Animal Behavior | 70 | 6.2K | 283 | 186 |
| 278 | Molecular Pharmacology | 50 | 6.2K | 67 | 11 |
| 279 | Systems Biology | 165 | 6.1K | 21 | 17 |
| 280 | Engineering | 184 | 6.1K | 245 | 144 |
| 281 | Analytical Biochemistry | 107 | 6.0K | 58 | 42 |
| 282 | Environmental Engineering | 122 | 6.0K | 325 | 341 |
| 283 | Learning | 81 | 6.0K | 118 | 77 |
| 284 | proteins | 124 | 6.0K | 126 | 116 |
| 285 | complementary therapies | 180 | 5.9K | 15 | 8 |
| 286 | Proteome | 90 | 5.9K | 55 | 46 |
| 287 | Microelectronics | 48 | 5.9K | 390 | 198 |
| 288 | alcoholism | 209 | 5.9K | 68 | 85 |
| 289 | Autoimmunity | 100 | 5.9K | 15 | 18 |
| 290 | Microcirculation | 79 | 5.9K | 7 | 3 |
| 291 | Respiratory system | 127 | 5.8K | 3 | 3 |
| 292 | Alternative Medicine | 163 | 5.7K | 16 | 8 |
| 293 | Health Education | 176 | 5.6K | 92 | 83 |
| 294 | Nanostructured Materials | 98 | 5.6K | 478 | 318 |
| 295 | Electronics | 179 | 5.6K | 327 | 273 |
| 296 | environmental protection | 114 | 5.6K | 249 | 207 |
| 297 | Cerebellum | 74 | 5.6K | 5 | 4 |
| 297 | Cerebellar ataxia | 74 | 5.6K | 5 | 4 |
| 299 | Environmental Policy | 110 | 5.5K | 261 | 277 |
| 300 | Environmental Law | 108 | 5.4K | 34 | 62 |
| 301 | Nanoparticles | 79 | 5.4K | 174 | 100 |
| 302 | Functional Genomics | 71 | 5.4K | 3 | 2 |
| 303 | Information Science | 93 | 5.3K | 185 | 101 |
| 304 | Primary health care | 216 | 5.3K | 41 | 46 |
| 305 | tomography | 174 | 5.2K | 1 | 1 |
| 306 | Experimental Psychology | 30 | 5.2K | 111 | 18 |
| 307 | Vision | 59 | 5.1K | 84 | 48 |
| 308 | Organic Chemistry | 141 | 5.1K | 298 | 252 |
| 309 | Neurotransmitters | 186 | 5.0K | 7 | 11 |
| 310 | North America | 201 | 5.0K | 5 | 4 |
| 311 | Polymers | 87 | 4.9K | 933 | 551 |
| 312 | Molecular Imaging | 128 | 4.9K | 20 | 39 |
| 313 | Europe | 146 | 4.9K | 216 | 151 |
| 314 | Plant physiology | 15 | 4.9K | 983 | 225 |
| 315 | Ethology | 52 | 4.9K | 271 | 187 |
| 316 | Hospitals | 170 | 4.8K | 10 | 8 |
| 317 | Magnetic Resonance Imaging | 178 | 4.8K | 5 | 10 |
| 318 | Carcinogenesis | 123 | 4.7K | 20 | 30 |
| 319 | Neurolinguistics | 61 | 4.7K | 19 | 10 |
| 319 | Recombinant DNA | 84 | 4.7K | 73 | 37 |
| 321 | Proteomics | 72 | 4.6K | 48 | 41 |
| 322 | Hippocampus | 40 | 4.5K | 20 | 13 |
| 323 | Antigens | 93 | 4.5K | 33 | 30 |
| 324 | drug addiction | 145 | 4.5K | 69 | 88 |
| 325 | Menopause | 185 | 4.5K | 1 | 1 |
| 326 | Autoimmune diseases | 90 | 4.4K | 11 | 15 |
| 327 | Clinical Biochemistry | 100 | 4.4K | 52 | 41 |
| 328 | Endocrine glands | 60 | 4.4K | 4 | 7 |
| 329 | Otolaryngology | 115 | 4.4K | 29 | 18 |
| 330 | Photobiology | 29 | 4.4K | 194 | 10 |
| 331 | Blood vessels | 57 | 4.3K | 4 | 3 |
| 332 | Astrocytes | 34 | 4.3K | 36 | 15 |
| 333 | language | 53 | 4.3K | 72 | 31 |
| 334 | occupational diseases | 107 | 4.3K | 24 | 28 |
| 335 | Antibodies | 76 | 4.2K | 14 | 14 |
| 336 | Social Psychology | 77 | 4.2K | 306 | 267 |
| 337 | Molecular cloning | 68 | 4.2K | 92 | 43 |
| 338 | heredity | 106 | 4.2K | 12 | 12 |
| 339 | Genetic recombination | 66 | 4.2K | 91 | 44 |
| 340 | Cardiac electrophysiology | 122 | 4.1K | 2 | 2 |
| 340 | arrhythmia | 122 | 4.1K | 2 | 2 |
| 342 | carcinogens | 98 | 4.1K | 34 | 43 |
| 343 | Neuroimmunology | 90 | 4.1K | 20 | 34 |
| 344 | Genetic epidemiology | 103 | 4.1K | 12 | 11 |
| 345 | Meteorology | 25 | 4.0K | 739 | 338 |
| 346 | prostaglandins | 69 | 4.0K | 10 | 7 |
| 347 | Autoantibodies | 78 | 4.0K | 13 | 18 |
| 348 | Neuropharmacology | 46 | 3.9K | 27 | 7 |
| 349 | Atherosclerosis | 94 | 3.9K | 2 | 2 |
| 350 | Quantum electronics | 39 | 3.8K | 358 | 85 |
| 351 | older people | 259 | 3.8K | 57 | 57 |
| 352 | Tropical Medicine | 128 | 3.8K | 58 | 45 |
| 353 | Microorganisms | 31 | 3.7K | 155 | 103 |
| 354 | Environmental Microbiology | 29 | 3.6K | 279 | 132 |
| 355 | Cognitive Therapy | 132 | 3.6K | 4 | 11 |
| 355 | drugs | 145 | 3.6K | 79 | 128 |
| 357 | Smoking | 111 | 3.6K | 47 | 52 |
| 358 | Developmental Psychology | 37 | 3.6K | 187 | 106 |
| 359 | Psychoneuroimmunology | 74 | 3.6K | 18 | 36 |
| 359 | mutagens | 76 | 3.6K | 35 | 49 |
| 361 | Industrial Microbiology | 37 | 3.6K | 330 | 140 |
| 362 | soil microbiology | 25 | 3.6K | 429 | 199 |
| 363 | Amyotrophic Lateral Sclerosis | 98 | 3.5K | 5 | 5 |
| 364 | Biosensors | 59 | 3.5K | 128 | 113 |
| 365 | Autism | 78 | 3.4K | 43 | 47 |
| 366 | Sports | 88 | 3.4K | 233 | 172 |
| 367 | Molecular Genetics | 67 | 3.4K | 235 | 256 |
| 368 | cross-cultural comparison | 78 | 3.4K | 9 | 5 |
| 369 | cell movement | 23 | 3.3K | 24 | 2 |
| 370 | Pharmacy | 71 | 3.3K | 259 | 163 |
| 371 | Pituitary gland | 77 | 3.3K | 2 | 1 |
| 372 | protein | 47 | 3.2K | 183 | 126 |
| 373 | biological factors | 88 | 3.2K | 83 | 101 |
| 374 | lasers | 29 | 3.2K | 654 | 139 |
| 374 | Pregnancy | 79 | 3.2K | 26 | 17 |
| 376 | Endocrine system | 393 | 3.2K | 1 | 2 |
| 377 | Dietetics | 93 | 3.2K | 37 | 26 |
| 378 | Bioelectronics | 43 | 3.1K | 136 | 111 |
| 379 | Nutrition physiology | 44 | 3.1K | 48 | 28 |
| 380 | visualization | 298 | 3.1K | 13 | 38 |
| 381 | environmental exposure | 114 | 3.1K | 58 | 103 |
| 382 | Radiation | 88 | 3.1K | 179 | 102 |
| 383 | cell interaction | 62 | 3.1K | 45 | 29 |
| 384 | Evidence-Based Medicine | 154 | 3.1K | 6 | 9 |
| 385 | Signal Processing | 52 | 3.0K | 571 | 405 |
| 386 | Neuroimaging | 105 | 3.0K | 4 | 3 |
| 387 | Geriatric Oncology | 92 | 3.0K | 9 | 15 |
| 388 | Brachytherapy | 78 | 3.0K | 2 | 1 |
| 389 | Safety management | 120 | 3.0K | 3 | 3 |
| 390 | embryo transfer | 116 | 3.0K | 3 | 3 |
| 391 | Spectrum analysis | 68 | 3.0K | 981 | 866 |
| 392 | human development | 26 | 3.0K | 172 | 73 |
| 393 | preimplantation genetic diagnosis | 114 | 2.9K | 3 | 3 |
| 394 | Cytoskeleton | 30 | 2.9K | 22 | 4 |
| 395 | drug resistance | 21 | 2.8K | 103 | 12 |
| 396 | Inflammation | 63 | 2.8K | 43 | 56 |
| 397 | Decision making | 70 | 2.8K | 101 | 112 |
| 398 | Contraception | 111 | 2.8K | 22 | 34 |
| 399 | counseling | 81 | 2.8K | 145 | 110 |
| 400 | Mental Health | 136 | 2.7K | 66 | 111 |
| 401 | Linguistics | 38 | 2.7K | 235 | 104 |
| 402 | Immunochemistry | 87 | 2.7K | 24 | 21 |
| 403 | Histochemistry | 60 | 2.7K | 57 | 35 |
| 404 | Reproductive health | 72 | 2.7K | 31 | 23 |
| 405 | Post-traumatic stress disorder | 83 | 2.7K | 43 | 66 |
| 406 | Child welfare | 87 | 2.6K | 63 | 46 |
| 407 | Steroids | 76 | 2.6K | 60 | 56 |
| 408 | Medical Imaging | 117 | 2.6K | 11 | 30 |
| 408 | anesthesia | 155 | 2.6K | 1 | 2 |
| 410 | Andrology | 69 | 2.6K | 17 | 13 |
| 411 | Statistical physics | 50 | 2.6K | 904 | 590 |
| 412 | Chemical Engineering | 37 | 2.6K | 1588 | 1063 |
| 412 | Patient education | 61 | 2.6K | 38 | 44 |
| 414 | risk factors | 141 | 2.5K | 7 | 41 |
| 415 | Asthma | 100 | 2.5K | 9 | 15 |
| 416 | RNA | 28 | 2.5K | 69 | 42 |
| 417 | chronic disease | 59 | 2.5K | 19 | 15 |
| 418 | Medical Ethics | 217 | 2.5K | 20 | 34 |
| 419 | Maternal health services | 78 | 2.5K | 14 | 10 |
| 420 | pain management | 71 | 2.4K | 25 | 26 |
| 421 | calcification | 58 | 2.4K | 23 | 28 |
| 422 | Language Disorders | 82 | 2.4K | 85 | 71 |
| 423 | Artificial Intelligence | 58 | 2.3K | 733 | 609 |
| 424 | Hearing | 75 | 2.3K | 71 | 54 |
| 425 | Biopharmaceutics | 45 | 2.3K | 110 | 75 |
| 426 | Pollution | 80 | 2.3K | 1025 | 1413 |
| 427 | Community Psychology | 11 | 2.3K | 238 | 74 |
| 427 | Developing countries | 64 | 2.3K | 267 | 234 |
| 429 | Anthropology | 53 | 2.3K | 237 | 127 |
| 430 | Food | 58 | 2.3K | 493 | 456 |
| 431 | optical instruments | 51 | 2.3K | 44 | 45 |
| 431 | optical phenomena | 51 | 2.3K | 3 | 4 |
| 433 | disease outbreaks | 70 | 2.2K | 24 | 46 |
| 434 | Data Mining | 63 | 2.2K | 97 | 191 |
| 435 | Oxidative stress | 35 | 2.2K | 62 | 75 |
| 436 | Teratology | 54 | 2.2K | 16 | 21 |
| 437 | Quality of life | 83 | 2.2K | 63 | 155 |
| 438 | Developmental Neurobiology | 25 | 2.2K | 57 | 8 |
| 439 | Culture techniques | 54 | 2.1K | 12 | 8 |
| 440 | DNA methylation | 43 | 2.1K | 9 | 10 |
| 441 | Telemedicine | 66 | 2.1K | 7 | 8 |
| 442 | Microscopy | 50 | 2.1K | 139 | 98 |
| 443 | Social behavior | 30 | 2.1K | 262 | 171 |
| 444 | Multiple sclerosis | 150 | 2.1K | 5 | 7 |
| 445 | Epidemics | 64 | 2.1K | 24 | 45 |
| 446 | Colloids | 43 | 2.1K | 1110 | 893 |
| 447 | Audiology | 45 | 2.1K | 138 | 98 |
| 448 | Global Health | 140 | 2.0K | 19 | 42 |
| 448 | X-rays | 83 | 2.0K | 10 | 11 |
| 450 | data collection | 53 | 2.0K | 53 | 140 |
| 451 | Quality Assurance | 50 | 2.0K | 5 | 2 |
| 451 | Freeze-Drying | 52 | 2.0K | 11 | 9 |
| 451 | Hypothermia | 52 | 2.0K | 11 | 9 |
| 451 | Freeze Drying | 52 | 2.0K | 11 | 9 |
| 455 | Frontotemporal lobar degeneration | 67 | 2.0K | 6 | 7 |
| 456 | Mental Health Services | 123 | 2.0K | 62 | 109 |
| 457 | Precision medicine | 91 | 2.0K | 1 | 1 |
| 458 | health services | 105 | 2.0K | 64 | 96 |
| 459 | Microfabrication | 30 | 2.0K | 32 | 5 |
| 460 | Microbial Ecology | 36 | 2.0K | 568 | 595 |
| 461 | Community Psychiatry | 95 | 1.9K | 50 | 121 |
| 462 | Immunogenetics | 52 | 1.9K | 52 | 50 |
| 463 | Genes | 43 | 1.9K | 121 | 76 |
| 464 | scientific societies | 71 | 1.9K | 40 | 64 |
| 465 | Radioisotopes | 93 | 1.9K | 54 | 40 |
| 466 | Clinical Pharmacology | 54 | 1.8K | 175 | 153 |
| 467 | Education | 82 | 1.8K | 486 | 488 |
| 468 | Lipid metabolism | 24 | 1.8K | 44 | 26 |
| 468 | Lipid | 24 | 1.8K | 44 | 26 |
| 470 | biological evolution | 35 | 1.8K | 529 | 566 |
| 471 | personality | 57 | 1.8K | 222 | 347 |
| 472 | Bioethics | 123 | 1.8K | 31 | 41 |
| 473 | environmental pollution | 66 | 1.7K | 846 | 1170 |
| 474 | eugenics | 28 | 1.7K | 69 | 26 |
| 475 | Sexual health | 70 | 1.7K | 46 | 73 |
| 476 | Cognitive Behavioral Therapy | 71 | 1.7K | 3 | 4 |
| 477 | Radiation Oncology | 36 | 1.7K | 22 | 12 |
| 478 | Elderly | 187 | 1.7K | 61 | 50 |
| 479 | Hemostasis | 90 | 1.7K | 19 | 49 |
| 480 | healthcare disparities | 79 | 1.7K | 13 | 21 |
| 481 | Metastasis | 22 | 1.7K | 11 | 23 |
| 482 | Communication | 23 | 1.7K | 598 | 350 |
| 483 | Neurotoxicology | 22 | 1.7K | 83 | 30 |
| 484 | Reproductive toxicology | 29 | 1.7K | 32 | 27 |
| 485 | Palliative Care | 95 | 1.7K | 30 | 67 |
| 486 | Melanoma | 37 | 1.7K | 7 | 11 |
| 487 | Occupational Health | 77 | 1.7K | 60 | 83 |
| 488 | rare diseases | 49 | 1.6K | 38 | 52 |
| 489 | collagen | 19 | 1.6K | 40 | 34 |
| 490 | Mathematics | 43 | 1.6K | 1893 | 943 |
| 491 | child abuse | 37 | 1.6K | 124 | 121 |
| 492 | Public Policy | 57 | 1.6K | 233 | 251 |
| 493 | Cross-Cultural Studies | 50 | 1.6K | 27 | 24 |
| 494 | Drug delivery devices | 13 | 1.6K | 26 | 2 |
| 495 | Nonlinear Dynamics | 31 | 1.6K | 612 | 399 |
| 496 | Bacterial diseases | 34 | 1.6K | 7 | 9 |
| 497 | Birth control | 38 | 1.6K | 47 | 38 |
| 498 | biopolymers | 26 | 1.6K | 334 | 196 |
| 498 | Emotions | 14 | 1.6K | 221 | 115 |
| 500 | health planning | 55 | 1.6K | 259 | 195 |
| 501 | Ultrasonics | 42 | 1.5K | 153 | 156 |
| 502 | cytokines | 40 | 1.5K | 145 | 139 |
| 503 | Extracellular matrix | 16 | 1.5K | 41 | 37 |
| 504 | Ultrasound | 39 | 1.5K | 105 | 71 |
| 505 | Physical Chemistry | 23 | 1.5K | 779 | 525 |
| 506 | child behavior | 44 | 1.5K | 29 | 48 |
| 507 | Synaptic Transmission | 26 | 1.5K | 68 | 38 |
| 508 | Dentistry | 57 | 1.4K | 73 | 46 |
| 509 | Long-Term Care | 52 | 1.4K | 41 | 100 |
| 509 | Long-term care facilities | 52 | 1.4K | 41 | 100 |
| 511 | homosexuality | 47 | 1.4K | 18 | 24 |
| 512 | Radio | 49 | 1.4K | 320 | 392 |
| 513 | Sarcopenia | 24 | 1.4K | 27 | 32 |
| 514 | Neurogenetics | 43 | 1.4K | 7 | 8 |
| 515 | Genetic disorders | 47 | 1.4K | 55 | 65 |
| 516 | Industrial Safety | 88 | 1.3K | 39 | 120 |
| 517 | Nuclear Engineering | 63 | 1.3K | 300 | 215 |
| 518 | Molecular Spectroscopy | 57 | 1.3K | 198 | 187 |
| 519 | urban health | 23 | 1.3K | 49 | 31 |
| 520 | Synapses | 25 | 1.3K | 33 | 32 |
| 521 | Fluorescence spectroscopy | 55 | 1.3K | 5 | 7 |
| 522 | Pharmacogenomics | 40 | 1.3K | 3 | 10 |
| 523 | Nanomedicine | 15 | 1.3K | 16 | 4 |
| 524 | health services accessibility | 99 | 1.3K | 34 | 100 |
| 525 | Randomized Controlled Trials | 70 | 1.3K | 76 | 81 |
| 526 | Molecular evolution | 21 | 1.3K | 450 | 393 |
| 527 | Chronobiology | 37 | 1.3K | 27 | 30 |
| 527 | Circadian rhythms | 37 | 1.3K | 19 | 29 |
| 527 | biological clocks | 37 | 1.3K | 27 | 30 |
| 527 | circadian rhythm | 37 | 1.3K | 27 | 30 |
| 527 | biological rhythms | 37 | 1.3K | 26 | 30 |
| 532 | Geriatric Psychiatry | 45 | 1.3K | 102 | 137 |
| 533 | Androgens | 19 | 1.3K | 29 | 17 |
| 534 | Tissue Engineering | 24 | 1.3K | 31 | 25 |
| 535 | polymerization | 33 | 1.2K | 1409 | 1091 |
| 536 | Neurovirology | 35 | 1.2K | 20 | 24 |
| 537 | Personality Assessment | 48 | 1.2K | 45 | 108 |
| 538 | Social Sciences | 54 | 1.2K | 547 | 483 |
| 539 | Evolution | 26 | 1.2K | 558 | 581 |
| 540 | Surface Chemistry | 40 | 1.2K | 1189 | 1174 |
| 541 | Genetic Counseling | 65 | 1.2K | 11 | 10 |
| 542 | Australia | 51 | 1.2K | 252 | 206 |
| 543 | System analysis | 55 | 1.2K | 335 | 392 |
| 544 | Health care reform | 80 | 1.2K | 2 | 2 |
| 545 | Adolescent Psychology | 41 | 1.2K | 118 | 160 |
| 546 | Sexuality | 38 | 1.2K | 16 | 13 |
| 547 | liver | 68 | 1.2K | 4 | 9 |
| 548 | Osteoporosis | 28 | 1.2K | 18 | 22 |
| 549 | Parasitology | 29 | 1.2K | 644 | 439 |
| 550 | Pediatric Dermatology | 93 | 1.2K | 18 | 28 |
| 551 | Computer Graphics | 17 | 1.2K | 697 | 354 |
| 551 | psychopathology | 14 | 1.2K | 116 | 86 |
| 553 | Physical fitness | 25 | 1.2K | 221 | 182 |
| 554 | Gene expression | 20 | 1.2K | 41 | 29 |
| 555 | Ultrasonic Imaging | 18 | 1.1K | 115 | 28 |
| 556 | Plant Ecology | 8 | 1.1K | 1093 | 505 |
| 557 | drug abuse | 53 | 1.1K | 57 | 66 |
| 558 | mammals | 52 | 1.1K | 86 | 115 |
| 559 | Diagnosis | 66 | 1.1K | 8 | 11 |
| 560 | drug evaluation | 46 | 1.1K | 122 | 136 |
| 561 | Mood Disorders | 14 | 1.1K | 1 | 2 |
| 562 | Asia | 45 | 1.1K | 433 | 294 |
| 563 | Nutritional support | 18 | 1.1K | 19 | 10 |
| 564 | breastfeeding | 30 | 1.1K | 55 | 26 |
| 565 | Histocompatibility Testing | 46 | 1.1K | 22 | 41 |
| 566 | Nanobiotechnology | 20 | 1.1K | 68 | 72 |
| 566 | sports injuries | 75 | 1.1K | 11 | 22 |
| 568 | Hematopoietic stem cell transplantation | 27 | 1.0K | 25 | 43 |
| 569 | mental processes | 60 | 1.0K | 12 | 29 |
| 570 | abnormalities | 20 | 1.0K | 21 | 21 |
| 571 | Growth factors | 15 | 1.0K | 33 | 63 |
| 572 | Pharmacokinetics | 17 | 1.0K | 220 | 136 |
| 573 | Mass Spectrometry | 22 | 1.0K | 378 | 251 |
| 574 | Carbohydrates | 22 | 1.0K | 65 | 75 |
| 575 | Drug discovery | 31 | 1.0K | 12 | 18 |
| 576 | hospice care | 54 | 1.0K | 14 | 22 |
| 577 | glycoproteins | 27 | 998 | 65 | 74 |
| 577 | Glycoconjugates | 27 | 998 | 65 | 74 |
| 577 | glycolipids | 27 | 998 | 65 | 74 |
| 577 | Gastrointestinal diseases | 31 | 998 | 53 | 33 |
| 581 | Artificial Organs | 79 | 993 | 22 | 56 |
| 581 | psychophysics | 43 | 993 | 11 | 18 |
| 583 | Food Microbiology | 20 | 987 | 355 | 344 |
| 584 | biochemical markers | 24 | 986 | 55 | 25 |
| 585 | Information Systems | 61 | 979 | 75 | 214 |
| 586 | Flow cytometry | 42 | 971 | 14 | 36 |
| 587 | China | 34 | 968 | 733 | 571 |
| 588 | Antiviral agents | 41 | 961 | 17 | 32 |
| 589 | Brain damage | 39 | 957 | 25 | 54 |
| 590 | Amyloidosis | 15 | 946 | 35 | 20 |
| 591 | Sound | 38 | 939 | 189 | 181 |
| 591 | Parkinson's disease | 26 | 939 | 14 | 24 |
| 593 | Music | 51 | 935 | 75 | 80 |
| 593 | voice | 51 | 935 | 27 | 41 |
| 595 | Soft Condensed Matter | 11 | 929 | 573 | 266 |
| 596 | Immunopharmacology | 35 | 927 | 163 | 169 |
| 597 | food technology | 23 | 912 | 860 | 710 |
| 598 | Photography | 280 | 899 | 84 | 103 |
| 599 | Nursing | 81 | 894 | 149 | 245 |
| 600 | Hemophilia | 29 | 889 | 96 | 84 |
| 601 | Cytokine | 16 | 884 | 77 | 87 |
| 602 | gastrointestinal tract | 28 | 882 | 16 | 60 |
| 603 | Psychiatric Epidemiology | 33 | 880 | 52 | 106 |
| 604 | Bioenergetics | 11 | 878 | 365 | 211 |
| 604 | Energy metabolism | 11 | 878 | 280 | 185 |
| 606 | Emergency Medical Services | 56 | 876 | 37 | 47 |
| 607 | Cell division | 17 | 875 | 61 | 44 |
| 608 | Morphology | 13 | 867 | 293 | 103 |
| 609 | Performance | 8 | 866 | 135 | 52 |
| 610 | Cell communication | 18 | 862 | 86 | 78 |
| 611 | Mathematical Physics | 16 | 861 | 1297 | 685 |
| 612 | Suicide | 33 | 842 | 61 | 88 |
| 613 | Ventilation | 9 | 840 | 220 | 80 |
| 614 | Cybernetics | 15 | 833 | 651 | 488 |
| 615 | Neonatology | 23 | 830 | 106 | 89 |
| 616 | Ferroelectricity | 29 | 824 | 237 | 138 |
| 616 | Radio frequency | 29 | 824 | 88 | 88 |
| 618 | Cardiovascular Pharmacology | 51 | 821 | 7 | 18 |
| 619 | adolescence | 18 | 820 | 289 | 261 |
| 620 | locomotion | 15 | 815 | 187 | 125 |
| 620 | posture | 15 | 815 | 187 | 125 |
| 620 | gait | 15 | 815 | 187 | 125 |
| 620 | walking | 15 | 815 | 187 | 125 |
| 624 | air quality management | 8 | 813 | 239 | 72 |
| 624 | indoor air pollution | 8 | 813 | 157 | 70 |
| 624 | Sick building syndrome | 8 | 813 | 157 | 70 |
| 627 | Organ transplantation | 49 | 806 | 35 | 35 |
| 627 | Biomolecules | 16 | 806 | 87 | 121 |
| 629 | Body Image | 21 | 789 | 33 | 41 |
| 630 | Mechatronics | 8 | 787 | 509 | 178 |
| 631 | Oligosaccharide | 17 | 785 | 59 | 79 |
| 632 | Holistic Health | 19 | 784 | 53 | 27 |
| 633 | Malaria | 30 | 782 | 141 | 167 |
| 634 | Social work | 56 | 773 | 208 | 254 |
| 635 | drug control | 13 | 771 | 133 | 55 |
| 636 | cell membrane | 18 | 763 | 183 | 196 |
| 636 | gene transfer | 16 | 763 | 34 | 20 |
| 636 | genetic transformation | 16 | 763 | 34 | 20 |
| 639 | Occupational Therapy | 49 | 755 | 116 | 104 |
| 640 | Bioinorganic chemistry | 12 | 748 | 673 | 339 |
| 640 | Imaging systems | 30 | 748 | 66 | 44 |
| 642 | Liposomes | 17 | 743 | 116 | 123 |
| 643 | Plant Genetics | 4 | 736 | 589 | 297 |
| 644 | Robotics | 19 | 735 | 638 | 479 |
| 645 | Consciousness | 10 | 733 | 181 | 77 |
| 646 | behavior modification | 16 | 729 | 147 | 158 |
| 647 | Lymphoma | 49 | 722 | 19 | 25 |
| 648 | Environmental pollutants | 18 | 720 | 845 | 755 |
| 649 | Mycology | 17 | 712 | 629 | 523 |
| 650 | plasma | 21 | 710 | 8 | 1 |
| 651 | Biofeedback | 9 | 707 | 16 | 10 |
| 652 | monoclonal antibodies | 18 | 706 | 41 | 36 |
| 653 | Youth | 11 | 699 | 293 | 208 |
| 654 | Cell adhesion | 10 | 692 | 26 | 8 |
| 655 | Coronary heart disease | 48 | 687 | 2 | 2 |
| 656 | Teaching | 49 | 685 | 242 | 384 |
| 657 | Travel | 38 | 678 | 91 | 128 |
| 658 | Veterinary Immunology | 18 | 676 | 86 | 66 |
| 659 | Cell migration | 8 | 674 | 10 | 4 |
| 659 | Phytotherapy | 24 | 674 | 52 | 71 |
| 661 | patient satisfaction | 30 | 673 | 2 | 2 |
| 662 | peptides | 21 | 661 | 120 | 83 |
| 663 | Obsessive-Compulsive Disorder | 36 | 658 | 2 | 5 |
| 664 | Educational Psychology | 10 | 654 | 714 | 457 |
| 665 | warfare | 29 | 652 | 40 | 87 |
| 666 | Cognitive Psychology | 10 | 646 | 143 | 33 |
| 666 | Aquaculture | 1 | 646 | 2144 | 426 |
| 668 | Socioeconomic Factors | 22 | 645 | 160 | 152 |
| 669 | Industry | 6 | 639 | 65 | 44 |
| 670 | refugees | 29 | 634 | 15 | 17 |
| 671 | Retina | 7 | 633 | 81 | 153 |
| 671 | eye | 7 | 633 | 94 | 151 |
| 673 | War | 28 | 632 | 13 | 10 |
| 674 | sexual behavior | 16 | 630 | 190 | 171 |
| 675 | Nitric oxide | 32 | 625 | 5 | 22 |
| 676 | Pharmaceutical Technology | 28 | 624 | 339 | 506 |
| 677 | Ergonomics | 31 | 621 | 248 | 242 |
| 678 | Pharmacognosy | 14 | 614 | 801 | 672 |
| 679 | DNA | 28 | 613 | 40 | 70 |
| 680 | Developmental Immunology | 17 | 610 | 137 | 151 |
| 681 | Agricultural Chemistry | 8 | 608 | 1518 | 860 |
| 682 | Applied Linguistics | 4 | 606 | 454 | 94 |
| 682 | Biomarkers | 13 | 606 | 93 | 29 |
| 684 | international cooperation | 19 | 598 | 131 | 148 |
| 685 | software | 36 | 597 | 93 | 300 |
| 686 | Genetic Research | 12 | 586 | 31 | 18 |
| 687 | Immunohistochemistry | 25 | 584 | 12 | 9 |
| 688 | Exercise | 24 | 582 | 346 | 364 |
| 689 | Intellectual disability | 32 | 581 | 169 | 231 |
| 690 | Geriatric Pharmacology | 29 | 579 | 12 | 43 |
| 690 | feeding behavior | 20 | 579 | 192 | 235 |
| 692 | Multiple Myeloma | 45 | 576 | 20 | 28 |
| 693 | Globalization | 16 | 574 | 118 | 92 |
| 694 | Neuroplasticity | 9 | 563 | 56 | 17 |
| 694 | Bacteria | 8 | 563 | 157 | 132 |
| 696 | Electrophoresis | 17 | 547 | 616 | 551 |
| 697 | Psychiatric hospitals | 44 | 546 | 38 | 76 |
| 698 | Zoology | 8 | 543 | 1646 | 791 |
| 699 | Information Technology | 11 | 537 | 1241 | 831 |
| 700 | Laser therapy | 29 | 532 | 52 | 36 |
| 701 | embryonic development | 13 | 530 | 127 | 109 |
| 702 | Healing | 7 | 528 | 33 | 5 |
| 702 | Vaccination | 16 | 528 | 39 | 56 |
| 702 | Communication in medicine | 11 | 528 | 209 | 148 |
| 705 | neuronal plasticity | 8 | 521 | 16 | 14 |
| 706 | violence | 27 | 519 | 231 | 331 |
| 707 | School Psychology | 9 | 514 | 208 | 152 |
| 708 | Human-Computer Interaction | 14 | 507 | 592 | 497 |
| 709 | vitamins | 12 | 502 | 15 | 24 |
| 710 | DNS | 20 | 497 | 70 | 115 |
| 711 | primary prevention | 27 | 491 | 53 | 83 |
| 712 | Computer Science | 33 | 487 | 378 | 466 |
| 713 | sex differences | 9 | 484 | 23 | 28 |
| 714 | Family | 23 | 483 | 263 | 294 |
| 715 | Economics | 10 | 479 | 2370 | 1519 |
| 716 | sadness | 11 | 476 | 40 | 15 |
| 716 | death | 11 | 476 | 68 | 22 |
| 716 | antisocial personality disorder | 11 | 476 | 40 | 15 |
| 719 | Electrocardiography | 28 | 475 | 46 | 50 |
| 720 | Antibacterial agents | 16 | 468 | 165 | 243 |
| 720 | disabilities | 18 | 468 | 195 | 202 |
| 722 | Chromosomes | 15 | 467 | 365 | 436 |
| 723 | pollutants | 9 | 466 | 1116 | 878 |
| 724 | Student Health Services | 22 | 465 | 53 | 61 |
| 725 | Comparative Physiology | 13 | 463 | 298 | 293 |
| 726 | Continuing Education | 5 | 462 | 321 | 29 |
| 727 | sanitation | 12 | 459 | 761 | 1080 |
| 727 | Water | 7 | 459 | 1720 | 1480 |
| 729 | actuators | 14 | 457 | 1062 | 1107 |
| 729 | transducers | 14 | 457 | 1062 | 1107 |
| 731 | Appetite | 17 | 456 | 171 | 258 |
| 732 | Familial diseases | 22 | 446 | 29 | 44 |
| 733 | Neuroanatomy | 6 | 442 | 91 | 42 |
| 734 | hygiene | 23 | 440 | 63 | 104 |
| 735 | Entropy | 15 | 432 | 312 | 152 |
| 736 | Cellular senescence | 8 | 429 | 75 | 183 |
| 736 | Altitude Sickness | 18 | 429 | 16 | 17 |
| 736 | Altitude | 18 | 429 | 16 | 17 |
| 739 | Mechanical Engineering | 11 | 428 | 1443 | 755 |
| 740 | Feasibility studies | 20 | 426 | 43 | 25 |
| 740 | Cell cycle | 7 | 426 | 160 | 79 |
| 740 | cell proliferation | 7 | 426 | 187 | 83 |
| 743 | Bioprinting | 10 | 423 | 7 | 6 |
| 743 | ovary | 14 | 423 | 33 | 23 |
| 745 | Pediatric Nursing | 24 | 422 | 80 | 93 |
| 746 | Chemical analysis | 13 | 411 | 471 | 469 |
| 747 | Humanities | 23 | 409 | 344 | 246 |
| 748 | Behavioral Genetics | 12 | 405 | 87 | 105 |
| 749 | Medicinal plants | 10 | 404 | 675 | 670 |
| 750 | school psychologists | 3 | 400 | 197 | 99 |
| 751 | management | 12 | 399 | 1713 | 1634 |
| 752 | industrial hygiene | 24 | 394 | 199 | 158 |
| 753 | Radiation Protection | 32 | 393 | 80 | 79 |
| 754 | amino acids | 10 | 392 | 194 | 171 |
| 755 | Social support | 23 | 388 | 9 | 28 |
| 755 | Social environment | 23 | 388 | 10 | 29 |
| 757 | Egypt | 4 | 386 | 458 | 121 |
| 758 | Family Therapy | 26 | 384 | 166 | 227 |
| 759 | Genetic markers | 14 | 383 | 27 | 19 |
| 760 | Nanophotonics | 7 | 382 | 105 | 87 |
| 761 | Lymphatic system | 10 | 378 | 25 | 13 |
| 762 | Flexible manufacturing systems | 1 | 372 | 793 | 99 |
| 763 | Personality Disorders | 17 | 371 | 63 | 109 |
| 764 | Plant genetic engineering | 12 | 368 | 401 | 497 |
| 764 | Memory disorders | 5 | 368 | 190 | 83 |
| 764 | Religion and Psychology | 23 | 368 | 46 | 47 |
| 764 | biomedicine | 23 | 368 | 78 | 206 |
| 768 | Risk Management | 23 | 363 | 113 | 248 |
| 769 | professional practice | 47 | 362 | 8 | 7 |
| 770 | radiation monitoring | 27 | 360 | 86 | 80 |
| 771 | Telecommunication | 8 | 359 | 1801 | 1262 |
| 772 | Speech Perception | 4 | 355 | 321 | 192 |
| 772 | auditory perception | 4 | 355 | 368 | 216 |
| 774 | Automation | 13 | 353 | 1120 | 1218 |
| 775 | sex crimes | 15 | 352 | 202 | 221 |
| 776 | Plant diseases | 5 | 350 | 1583 | 888 |
| 777 | Patient Safety | 16 | 342 | 11 | 10 |
| 778 | Water pollution | 5 | 340 | 2325 | 1751 |
| 779 | weight loss | 19 | 338 | 21 | 27 |
| 780 | health workforce | 6 | 337 | 95 | 77 |
| 780 | Technological Innovations | 16 | 337 | 276 | 435 |
| 780 | Parasites | 10 | 337 | 870 | 692 |
| 783 | monitoring | 31 | 334 | 10 | 32 |
| 784 | Origin of life | 3 | 332 | 121 | 33 |
| 784 | Smart Materials | 6 | 332 | 634 | 371 |
| 784 | Organelle biogenesis | 3 | 332 | 202 | 69 |
| 787 | Wireless Communication Systems | 6 | 330 | 1806 | 1088 |
| 788 | Learning disabilities | 20 | 329 | 242 | 313 |
| 789 | micromechanics | 10 | 327 | 292 | 252 |
| 790 | Physical organic chemistry | 15 | 324 | 599 | 631 |
| 790 | Cell survival | 7 | 324 | 69 | 68 |
| 790 | molecular chaperones | 7 | 324 | 83 | 68 |
| 793 | Electron Microscopy | 13 | 323 | 120 | 95 |
| 794 | Operations Research | 7 | 318 | 1450 | 1046 |
| 795 | Catalysis | 11 | 315 | 2161 | 2292 |
| 796 | Educational Technology | 10 | 314 | 758 | 624 |
| 797 | Quality Control | 4 | 313 | 1607 | 770 |
| 798 | Discourse Analysis | 1 | 310 | 617 | 119 |
| 798 | Ornithology | 4 | 310 | 842 | 339 |
| 798 | Birds | 4 | 310 | 1008 | 424 |
| 801 | Behavioral research | 11 | 309 | 142 | 79 |
| 802 | child mental health | 19 | 308 | 116 | 168 |
| 803 | Trace elements | 6 | 306 | 131 | 122 |
| 804 | Hallucinogens | 12 | 305 | 45 | 63 |
| 805 | Semantics | 6 | 301 | 102 | 55 |
| 806 | Mitochondria | 8 | 300 | 81 | 122 |
| 807 | Phonetics | 2 | 295 | 394 | 131 |
| 808 | Chromatographic analysis | 12 | 293 | 951 | 806 |
| 809 | Biodiversity | 6 | 292 | 1588 | 1275 |
| 810 | ethnicity | 18 | 291 | 164 | 152 |
| 811 | Ethics | 16 | 290 | 286 | 279 |
| 812 | families | 13 | 285 | 334 | 298 |
| 813 | Microbial Genetics | 3 | 283 | 349 | 192 |
| 813 | phytopathogenic bacteria | 3 | 283 | 250 | 185 |
| 815 | mental health policy | 14 | 281 | 71 | 88 |
| 816 | Psychoanalysis | 18 | 280 | 110 | 93 |
| 817 | Rheology | 2 | 276 | 779 | 267 |
| 818 | Environmental Chemistry | 5 | 275 | 1749 | 1542 |
| 819 | Structural design | 4 | 270 | 724 | 373 |
| 820 | Africa | 13 | 269 | 603 | 445 |
| 821 | Genetic testing | 10 | 264 | 100 | 38 |
| 821 | Positive Psychology | 10 | 264 | 41 | 120 |
| 823 | Obstetric Nursing | 23 | 261 | 52 | 99 |
| 823 | Cost control | 33 | 261 | 9 | 34 |
| 825 | musculoskeletal system | 11 | 260 | 27 | 61 |
| 826 | Composite Materials | 6 | 259 | 2052 | 1869 |
| 827 | natural products | 6 | 258 | 1302 | 855 |
| 828 | Oral communication | 3 | 257 | 456 | 166 |
| 828 | Structure-activity relationship | 2 | 257 | 334 | 162 |
| 830 | Radiopharmaceuticals | 19 | 256 | 90 | 62 |
| 831 | allied health | 10 | 253 | 82 | 98 |
| 831 | Toxins | 11 | 253 | 319 | 401 |
| 833 | Demography | 5 | 252 | 497 | 372 |
| 833 | Carbon | 3 | 252 | 1382 | 1071 |
| 835 | mutation | 9 | 249 | 292 | 449 |
| 836 | Chromatography | 9 | 248 | 964 | 818 |
| 837 | Nuclear Physics | 23 | 247 | 1918 | 2324 |
| 837 | Longevity | 6 | 247 | 78 | 69 |
| 837 | rejuvenation | 6 | 247 | 48 | 58 |
| 840 | Regulation | 4 | 246 | 4 | 22 |
| 841 | chromatin | 10 | 241 | 26 | 97 |
| 842 | Solitons | 2 | 240 | 1423 | 523 |
| 842 | Fractals | 2 | 240 | 1431 | 525 |
| 842 | Chaos | 2 | 240 | 1423 | 523 |
| 845 | Pediatric Endocrinology | 11 | 237 | 92 | 56 |
| 845 | Plant Biotechnology | 1 | 237 | 1379 | 487 |
| 847 | Hypertension in pregnancy | 31 | 235 | 9 | 44 |
| 847 | Breeding | 6 | 235 | 872 | 755 |
| 849 | Population | 7 | 234 | 522 | 497 |
| 850 | Analytical Toxicology | 7 | 233 | 100 | 84 |
| 850 | Virtual reality | 2 | 233 | 539 | 192 |
| 850 | Radiation dosimetry | 16 | 233 | 115 | 88 |
| 853 | Microfluidics | 8 | 232 | 75 | 100 |
| 853 | ethanol | 18 | 232 | 113 | 232 |
| 855 | Stress | 10 | 229 | 62 | 114 |
| 856 | Public opinion | 11 | 228 | 162 | 228 |
| 857 | Neural circuitry | 19 | 227 | 701 | 1270 |
| 858 | venom | 10 | 225 | 313 | 393 |
| 859 | Gender Studies | 6 | 224 | 317 | 217 |
| 860 | at-risk youth | 1 | 222 | 170 | 87 |
| 861 | Queer Studies | 5 | 221 | 164 | 129 |
| 862 | economic policy | 6 | 220 | 1717 | 1042 |
| 863 | Adipose tissue | 4 | 218 | 37 | 13 |
| 863 | Peptide | 13 | 218 | 58 | 76 |
| 865 | Green Chemistry | 2 | 216 | 2056 | 1482 |
| 865 | Sustainable Engineering | 2 | 216 | 1998 | 1191 |
| 867 | Microbial Biotechnology | 2 | 215 | 1323 | 538 |
| 868 | Oligosaccharides | 10 | 213 | 70 | 109 |
| 868 | internet | 14 | 213 | 650 | 969 |
| 868 | Israel | 6 | 213 | 73 | 16 |
| 871 | Religion | 12 | 211 | 387 | 179 |
| 871 | vitamin C | 5 | 211 | 279 | 301 |
| 871 | vitamin E | 5 | 211 | 279 | 301 |
| 874 | Mobile Computing | 2 | 210 | 1372 | 618 |
| 874 | Psychometrics | 10 | 210 | 208 | 275 |
| 876 | Pediatric Rheumatology | 10 | 209 | 88 | 78 |
| 876 | Human Rights | 5 | 209 | 394 | 198 |
| 878 | Lipid bilayers | 7 | 208 | 255 | 307 |
| 878 | recreation | 6 | 208 | 433 | 263 |
| 880 | Public Health Administration | 14 | 207 | 109 | 117 |
| 880 | Carbohydrate | 4 | 207 | 21 | 47 |
| 882 | Energy Policy | 1 | 204 | 3985 | 2274 |
| 882 | Dehydration | 5 | 204 | 5 | 2 |
| 882 | Cryopreservation | 5 | 204 | 5 | 2 |
| 882 | energy resources | 1 | 204 | 2183 | 1379 |
| 886 | Primates | 18 | 203 | 205 | 392 |
| 887 | Evolutionary Genetics | 4 | 201 | 581 | 366 |
| 887 | Molecular Epidemiology | 4 | 201 | 581 | 366 |
| 889 | Geriatric Medicine | 6 | 198 | 74 | 64 |
| 889 | Clinical Laboratory Science | 4 | 198 | 197 | 73 |
| 889 | toxicity testing | 7 | 198 | 405 | 452 |
| 892 | Astrophysics | 4 | 197 | 2695 | 2108 |
| 892 | Biomass Energy | 2 | 197 | 2829 | 2002 |
| 894 | Informatics | 4 | 196 | 797 | 581 |
| 895 | Information Theory | 9 | 195 | 815 | 875 |
| 895 | mental health promotion | 8 | 195 | 74 | 97 |
| 897 | nursing ethics | 6 | 190 | 105 | 104 |
| 897 | Electroconvulsive therapy | 14 | 190 | 15 | 30 |
| 899 | disease vectors | 6 | 189 | 654 | 646 |
| 900 | Molecular ecology | 4 | 188 | 914 | 1012 |
| 900 | Culture | 14 | 188 | 401 | 384 |
| 902 | Computer-Aided Design | 3 | 187 | 1316 | 713 |
| 903 | Neuroendocrinology | 5 | 185 | 62 | 188 |
| 903 | motor skills | 1 | 185 | 394 | 118 |
| 905 | Surface-Active Agents | 4 | 184 | 1027 | 905 |
| 905 | Surface properties | 4 | 184 | 1104 | 989 |
| 907 | Forensic Psychiatry | 11 | 183 | 239 | 279 |
| 907 | plant communities | 1 | 183 | 1605 | 931 |
| 909 | Metabolic syndrome | 8 | 182 | 78 | 83 |
| 910 | Happiness | 7 | 180 | 176 | 256 |
| 910 | Echocardiography | 8 | 180 | 16 | 37 |
| 910 | Japan | 7 | 180 | 1351 | 983 |
| 913 | Risk | 6 | 179 | 355 | 383 |
| 914 | Algae | 1 | 178 | 1159 | 522 |
| 914 | Seaweed | 1 | 178 | 899 | 417 |
| 916 | Probability | 5 | 176 | 424 | 365 |
| 916 | Welfare Economics | 3 | 176 | 419 | 290 |
| 916 | Financial management | 5 | 176 | 353 | 400 |
| 916 | Government policy | 3 | 176 | 161 | 126 |
| 920 | food handling | 2 | 175 | 1133 | 703 |
| 920 | Human biology | 8 | 175 | 324 | 319 |
| 922 | Pediatric Hematology | 22 | 174 | 60 | 121 |
| 922 | Disease management | 14 | 174 | 16 | 33 |
| 922 | Social welfare | 10 | 174 | 254 | 264 |
| 922 | Interferons | 10 | 174 | 75 | 168 |
| 926 | Radio waves | 3 | 173 | 962 | 708 |
| 926 | biological monitoring | 5 | 173 | 372 | 352 |
| 926 | magnetic resonance | 11 | 173 | 188 | 223 |
| 929 | Human trafficking | 8 | 171 | 10 | 2 |
| 929 | slavery | 8 | 171 | 12 | 11 |
| 931 | Population Genetics | 3 | 170 | 1200 | 1031 |
| 932 | Congenital heart disease | 21 | 168 | 8 | 6 |
| 933 | Astronomy | 3 | 167 | 2637 | 2138 |
| 934 | kidney | 7 | 166 | 32 | 70 |
| 935 | Numerical Analysis | 7 | 165 | 1628 | 1226 |
| 935 | Apoptosis | 6 | 165 | 117 | 155 |
| 935 | neurotoxins | 6 | 165 | 117 | 155 |
| 935 | Neurotoxic agents | 6 | 165 | 117 | 155 |
| 935 | antibiotics | 3 | 165 | 243 | 119 |
| 935 | Nerve regeneration | 6 | 165 | 117 | 155 |
| 941 | Prognosis | 3 | 164 | 19 | 19 |
| 941 | Synthetic biology | 5 | 164 | 251 | 250 |
| 941 | Ethnology | 2 | 164 | 1695 | 655 |
| 944 | health and race | 14 | 160 | 31 | 101 |
| 944 | extraterrestrial environment | 10 | 160 | 291 | 333 |
| 946 | Online social networks | 8 | 159 | 103 | 140 |
| 947 | Animal breeding | 4 | 156 | 677 | 507 |
| 948 | Power Electronics | 3 | 154 | 1104 | 959 |
| 949 | Nonverbal Communication | 2 | 153 | 254 | 171 |
| 949 | Dialysis | 9 | 153 | 58 | 39 |
| 949 | brain diseases | 1 | 153 | 14 | 5 |
| 952 | ethnic groups | 8 | 151 | 154 | 194 |
| 953 | Soviet Union | 8 | 150 | 347 | 175 |
| 954 | Simulation Methods | 6 | 149 | 615 | 538 |
| 954 | Body language | 1 | 149 | 228 | 102 |
| 956 | Systems Engineering | 5 | 148 | 1804 | 1441 |
| 956 | Cell surface receptors | 3 | 148 | 120 | 38 |
| 958 | DNA repair | 8 | 147 | 129 | 252 |
| 959 | Engineering Mathematics | 8 | 146 | 1136 | 1048 |
| 959 | Condensed Matter | 5 | 146 | 2381 | 2174 |
| 959 | Protein engineering | 5 | 146 | 169 | 212 |
| 962 | Detectors | 8 | 145 | 943 | 1060 |
| 963 | Kidney transplantation | 7 | 144 | 42 | 36 |
| 964 | Veterinary Pathology | 2 | 143 | 417 | 150 |
| 965 | Hydrology | 3 | 141 | 2524 | 1868 |
| 965 | women's rights | 6 | 141 | 80 | 97 |
| 967 | Solid State Physics | 5 | 140 | 3082 | 2627 |
| 968 | Engineering Ethics | 1 | 139 | 399 | 123 |
| 968 | Genetic translocation | 6 | 139 | 106 | 156 |
| 968 | Professional ethics | 1 | 139 | 566 | 143 |
| 968 | plasmids | 6 | 139 | 106 | 156 |
| 972 | Geriatric Nursing | 11 | 138 | 171 | 185 |
| 972 | Water quality management | 2 | 138 | 2395 | 1291 |
| 972 | Water Microbiology | 2 | 138 | 643 | 359 |
| 975 | big data | 9 | 137 | 198 | 389 |
| 976 | Human evolution | 4 | 133 | 333 | 400 |
| 977 | Bereavement | 6 | 132 | 82 | 87 |
| 978 | Marine Biology | 6 | 131 | 1905 | 2143 |
| 978 | Raman spectroscopy | 2 | 131 | 1006 | 566 |
| 980 | Forensic Psychology | 8 | 130 | 192 | 240 |
| 980 | Infrared spectroscopy | 1 | 130 | 689 | 170 |
| 982 | Geology | 1 | 129 | 3965 | 2151 |
| 982 | Erectile dysfunction | 7 | 129 | 130 | 193 |
| 982 | epidemiologic methods | 10 | 129 | 30 | 71 |
| 985 | Organometallic chemistry | 4 | 128 | 1869 | 1330 |
| 985 | nuclear magnetic resonance spectroscopy | 6 | 128 | 509 | 478 |
| 987 | Health Physics | 11 | 127 | 45 | 77 |
| 987 | dual diagnosis | 7 | 127 | 46 | 32 |
| 989 | poverty | 3 | 126 | 391 | 285 |
| 989 | Protein folding | 1 | 126 | 198 | 73 |
| 989 | Metabolic disorders in children | 8 | 126 | 107 | 94 |
| 992 | Language Acquisition | 1 | 125 | 559 | 184 |
| 992 | Language Development | 1 | 125 | 216 | 78 |
| 994 | Respiratory Therapy | 7 | 124 | 8 | 14 |
| 994 | gases | 7 | 124 | 8 | 14 |
| 996 | Radiologic Technology | 14 | 123 | 22 | 59 |
| 996 | Optoelectronics | 1 | 123 | 995 | 195 |
| 996 | Biochemical Genetics | 9 | 123 | 156 | 167 |
| 996 | Interventional Radiology | 14 | 123 | 22 | 59 |
| 996 | Fiber Optics | 1 | 123 | 1611 | 803 |