| 1 | Science | 11,996 | 1.7M | 3 | 4 |
| 2 | Biology | 10,660 | 1.4M | 3 | 5 |
| 3 | Biochemistry | 15,749 | 1.2M | 1 | 1 |
| 4 | Medicine | 10,110 | 1.1M | 4 | 3 |
| 5 | Molecular Biology | 8,714 | 934.1K | 4 | 2 |
| 6 | Neurology | 9,429 | 879.9K | 3 | 3 |
| 7 | Physics | 3,981 | 845.6K | 67 | 19 |
| 8 | Natural history | 2,346 | 713.0K | 9 | 8 |
| 9 | Cytology | 4,873 | 702.2K | 4 | 3 |
| 10 | Cell Biology | 4,506 | 668.4K | 3 | 3 |
| 11 | Immunology | 7,210 | 604.2K | 1 | 2 |
| 12 | Virology | 3,853 | 481.1K | 3 | 4 |
| 13 | Human genetics | 1,877 | 408.0K | 3 | 3 |
| 14 | Research | 5,975 | 394.2K | 5 | 3 |
| 15 | Microbiology | 4,052 | 377.4K | 7 | 3 |
| 16 | Psychiatry | 3,183 | 339.0K | 7 | 4 |
| 17 | nucleic acids | 1,221 | 330.0K | 2 | 2 |
| 18 | Endocrinology | 4,236 | 313.1K | 1 | 1 |
| 19 | Genetics | 2,857 | 306.9K | 2 | 3 |
| 20 | Immunity | 1,665 | 295.9K | 2 | 3 |
| 21 | Neurophysiology | 2,647 | 281.5K | 2 | 3 |
| 22 | Biophysics | 4,718 | 238.5K | 2 | 1 |
| 23 | Hematology | 3,681 | 226.7K | 6 | 4 |
| 24 | Chemistry | 2,871 | 220.4K | 92 | 58 |
| 25 | Pharmacology | 3,553 | 213.7K | 2 | 1 |
| 26 | Metabolic diseases | 2,205 | 205.9K | 1 | 2 |
| 27 | Medical genetics | 2,678 | 201.8K | 2 | 4 |
| 28 | Physiology | 2,332 | 190.2K | 5 | 2 |
| 29 | Metabolism | 2,246 | 184.0K | 3 | 1 |
| 30 | Bacteriology | 963 | 182.8K | 2 | 1 |
| 31 | Mental Disorders | 1,459 | 172.1K | 9 | 4 |
| 32 | Surgery | 509 | 165.2K | 22 | 4 |
| 33 | Cancer | 2,298 | 156.3K | 5 | 7 |
| 34 | Brain | 2,226 | 154.7K | 2 | 2 |
| 35 | Developmental Biology | 1,429 | 150.6K | 4 | 4 |
| 36 | Psychophysiology | 1,581 | 144.7K | 6 | 3 |
| 37 | Immune system | 560 | 141.4K | 3 | 2 |
| 38 | Neurochemistry | 1,949 | 132.3K | 3 | 2 |
| 39 | viruses | 1,736 | 131.0K | 1 | 1 |
| 40 | Analytical Biochemistry | 758 | 121.5K | 2 | 1 |
| 41 | Nervous system | 1,058 | 119.5K | 4 | 3 |
| 42 | Psychopharmacology | 1,351 | 117.6K | 2 | 4 |
| 43 | Neurobiology | 1,349 | 113.7K | 2 | 3 |
| 44 | Allergy | 703 | 111.5K | 3 | 3 |
| 45 | Neurons | 431 | 105.2K | 8 | 9 |
| 46 | Public Health | 1,631 | 98.4K | 33 | 25 |
| 47 | Pharmaceutical Chemistry | 1,598 | 97.3K | 2 | 2 |
| 48 | Aging | 1,790 | 96.2K | 3 | 2 |
| 49 | Pediatrics | 1,202 | 95.2K | 21 | 7 |
| 50 | Geriatrics | 1,605 | 94.2K | 6 | 1 |
| 51 | Epidemiology | 1,565 | 87.9K | 8 | 8 |
| 52 | Immunotherapy | 609 | 86.9K | 4 | 3 |
| 53 | Liver diseases | 712 | 82.3K | 3 | 3 |
| 54 | Cytogenetics | 781 | 81.8K | 4 | 3 |
| 55 | Pediatric Neurology | 616 | 81.2K | 4 | 5 |
| 56 | Memory | 1,780 | 79.0K | 1 | 3 |
| 57 | Toxicology | 1,510 | 78.7K | 13 | 5 |
| 58 | Environment | 983 | 76.7K | 31 | 32 |
| 59 | nuclear magnetic resonance | 603 | 76.2K | 1 | 1 |
| 60 | Oncology | 594 | 74.1K | 9 | 6 |
| 61 | Perception | 1,728 | 73.8K | 2 | 2 |
| 62 | Attention | 1,718 | 73.8K | 1 | 2 |
| 63 | Mental illness | 890 | 73.2K | 7 | 6 |
| 64 | Visual Perception | 1,708 | 73.0K | 1 | 2 |
| 65 | Environmental Health | 1,178 | 73.0K | 17 | 21 |
| 66 | gene mapping | 884 | 71.3K | 1 | 1 |
| 67 | Cardiovascular system | 564 | 70.1K | 16 | 8 |
| 68 | Psychology | 1,007 | 69.8K | 67 | 51 |
| 69 | Clinical Chemistry | 1,276 | 69.0K | 1 | 1 |
| 70 | Molecular structure | 573 | 67.9K | 4 | 3 |
| 71 | Cell differentiation | 751 | 66.9K | 4 | 6 |
| 72 | Biotechnology | 718 | 64.8K | 110 | 57 |
| 73 | Diabetes | 731 | 64.0K | 7 | 5 |
| 74 | Diabetes mellitus | 720 | 63.5K | 6 | 5 |
| 75 | cell physiology | 803 | 63.0K | 2 | 3 |
| 76 | Alzheimer's disease | 625 | 62.6K | 27 | 6 |
| 77 | Embryology | 674 | 61.0K | 7 | 6 |
| 78 | Nutrition | 1,041 | 60.9K | 13 | 11 |
| 79 | Dementia | 590 | 60.6K | 26 | 5 |
| 80 | Growth | 491 | 57.7K | 7 | 8 |
| 81 | Genetic regulation | 472 | 55.7K | 3 | 5 |
| 82 | Obstetrics | 812 | 55.5K | 11 | 1 |
| 83 | Environmental Toxicology | 706 | 53.9K | 4 | 4 |
| 84 | Hypertension | 462 | 53.1K | 17 | 11 |
| 85 | Host-parasite interactions | 542 | 52.9K | 2 | 2 |
| 86 | Medical Microbiology | 719 | 52.0K | 5 | 5 |
| 87 | genome | 393 | 52.0K | 7 | 14 |
| 88 | Anatomy | 596 | 51.5K | 7 | 7 |
| 89 | Bioengineering | 333 | 50.9K | 138 | 47 |
| 90 | Computational Biology | 555 | 48.5K | 12 | 21 |
| 91 | Developmental Genetics | 350 | 48.5K | 3 | 6 |
| 92 | Pathology | 642 | 47.4K | 15 | 7 |
| 93 | Virulence | 513 | 45.4K | 3 | 1 |
| 94 | Biochemical Engineering | 210 | 45.0K | 146 | 25 |
| 95 | Gene expression regulation | 366 | 44.5K | 3 | 7 |
| 96 | Magnetic Resonance Spectroscopy | 453 | 44.2K | 1 | 1 |
| 97 | Ophthalmology | 859 | 43.5K | 5 | 5 |
| 98 | Diet | 630 | 42.8K | 8 | 9 |
| 99 | drug development | 500 | 42.6K | 3 | 3 |
| 100 | Oncogenes | 491 | 42.5K | 4 | 4 |
| 101 | proteins | 694 | 42.0K | 2 | 2 |
| 102 | Genomics | 853 | 41.9K | 7 | 5 |
| 103 | Gerontology | 914 | 41.8K | 7 | 1 |
| 104 | Medical innovations | 373 | 40.6K | 3 | 3 |
| 105 | Behavior | 690 | 39.7K | 40 | 36 |
| 106 | Transplantation | 396 | 39.4K | 22 | 9 |
| 107 | Urology | 604 | 38.7K | 25 | 13 |
| 108 | viral genetics | 188 | 37.3K | 7 | 8 |
| 109 | Obesity | 662 | 36.9K | 5 | 3 |
| 110 | DNA polymerases | 221 | 36.6K | 1 | 2 |
| 111 | Neuropsychology | 579 | 36.6K | 11 | 6 |
| 112 | Cell metabolism | 127 | 36.5K | 5 | 3 |
| 113 | Homeostasis | 127 | 36.4K | 3 | 3 |
| 114 | nuclear magnetic resonance spectroscopy | 188 | 34.3K | 2 | 1 |
| 115 | Therapeutics | 535 | 34.0K | 4 | 5 |
| 116 | drug therapy | 621 | 33.6K | 9 | 7 |
| 117 | Nanotechnology | 315 | 33.5K | 364 | 178 |
| 118 | Chromosome mapping | 642 | 33.4K | 2 | 3 |
| 119 | Bioinformatics | 388 | 31.9K | 9 | 27 |
| 120 | Histology | 458 | 31.8K | 5 | 4 |
| 121 | pain | 222 | 31.6K | 29 | 6 |
| 122 | Child Development | 395 | 31.6K | 30 | 25 |
| 123 | free radicals | 366 | 31.6K | 1 | 2 |
| 124 | arthritis | 441 | 31.4K | 10 | 10 |
| 125 | Child psychology | 336 | 31.2K | 35 | 27 |
| 126 | Computational Chemistry | 40 | 30.6K | 35 | 6 |
| 127 | Medical Oncology | 539 | 30.5K | 14 | 13 |
| 128 | human behavior | 373 | 30.4K | 45 | 35 |
| 129 | Diagnostic microbiology | 311 | 30.0K | 8 | 8 |
| 130 | protein | 444 | 30.0K | 2 | 3 |
| 131 | Vaccines | 650 | 28.8K | 5 | 5 |
| 132 | Genetic engineering | 464 | 28.2K | 6 | 3 |
| 133 | gene therapy | 483 | 28.2K | 2 | 3 |
| 134 | Hormones | 541 | 27.8K | 2 | 2 |
| 135 | alcoholism | 560 | 27.6K | 9 | 9 |
| 136 | Cognitive neuroscience | 252 | 27.6K | 17 | 18 |
| 137 | United States | 663 | 26.8K | 137 | 99 |
| 138 | Immunopathology | 611 | 25.0K | 2 | 3 |
| 139 | Stem cells | 453 | 24.5K | 4 | 4 |
| 140 | Biomedical Engineering | 510 | 24.3K | 100 | 63 |
| 141 | Cerebral cortex | 273 | 23.5K | 7 | 9 |
| 142 | Rheumatology | 374 | 23.1K | 5 | 7 |
| 143 | nanoscience | 150 | 22.9K | 240 | 88 |
| 144 | Membranes | 460 | 22.8K | 4 | 13 |
| 145 | United Kingdom | 380 | 22.7K | 19 | 8 |
| 146 | enzymes | 444 | 22.5K | 1 | 3 |
| 147 | fertility | 412 | 22.4K | 4 | 3 |
| 148 | Infertility | 410 | 22.3K | 3 | 3 |
| 149 | Genetic therapy | 474 | 22.1K | 2 | 3 |
| 150 | Microorganisms | 66 | 21.8K | 45 | 3 |
| 151 | Radiography | 155 | 21.4K | 24 | 7 |
| 152 | Medical Laboratory Science | 409 | 21.4K | 6 | 15 |
| 153 | Data Mining | 99 | 21.1K | 21 | 5 |
| 154 | Schizophrenia | 258 | 21.0K | 20 | 11 |
| 155 | Molecular Microbiology | 240 | 20.9K | 7 | 6 |
| 156 | data collection | 77 | 20.7K | 10 | 4 |
| 157 | Animal Behavior | 194 | 20.6K | 104 | 44 |
| 158 | Lipids | 258 | 20.3K | 3 | 3 |
| 159 | personality | 124 | 19.9K | 89 | 32 |
| 160 | Cognition | 185 | 19.8K | 88 | 28 |
| 161 | Health promotion | 333 | 19.6K | 12 | 11 |
| 162 | Developmental Psychology | 245 | 19.4K | 19 | 14 |
| 163 | histological techniques | 320 | 19.4K | 1 | 2 |
| 164 | Child | 496 | 19.2K | 27 | 21 |
| 165 | Reproduction | 422 | 19.0K | 29 | 18 |
| 166 | preventive medicine | 306 | 18.4K | 11 | 13 |
| 167 | Clinical Biochemistry | 384 | 18.4K | 2 | 1 |
| 168 | carcinogens | 335 | 18.3K | 2 | 2 |
| 169 | Bacterial infections | 150 | 17.8K | 4 | 5 |
| 170 | Parasitology | 410 | 17.6K | 27 | 18 |
| 171 | Clinical Psychology | 206 | 17.4K | 49 | 35 |
| 172 | mycoses | 141 | 17.4K | 6 | 5 |
| 173 | Signal Transduction | 269 | 17.2K | 8 | 8 |
| 174 | Ecology | 316 | 17.2K | 441 | 471 |
| 175 | Ethology | 134 | 17.1K | 111 | 32 |
| 176 | Biocompatible Materials | 196 | 16.9K | 333 | 195 |
| 177 | Microscopy | 316 | 16.8K | 8 | 2 |
| 178 | Substance Abuse | 331 | 16.4K | 26 | 11 |
| 179 | Respiration | 204 | 16.4K | 47 | 16 |
| 180 | transport vesicles | 38 | 16.0K | 6 | 25 |
| 181 | Histochemistry | 251 | 16.0K | 1 | 2 |
| 182 | Carcinogenesis | 274 | 16.0K | 4 | 2 |
| 183 | Recombinant DNA | 352 | 15.9K | 2 | 3 |
| 184 | Cognitive Science | 105 | 15.9K | 62 | 24 |
| 185 | Crystallography | 61 | 15.7K | 230 | 25 |
| 186 | Molecular Pharmacology | 195 | 15.7K | 3 | 1 |
| 187 | Critical Care | 213 | 15.7K | 47 | 49 |
| 188 | X-ray crystallography | 48 | 15.7K | 56 | 18 |
| 189 | Critical Care Medicine | 195 | 15.1K | 58 | 52 |
| 190 | Radiobiology | 376 | 15.1K | 19 | 28 |
| 191 | Health | 359 | 15.1K | 24 | 14 |
| 192 | Bioorganic chemistry | 488 | 14.9K | 13 | 28 |
| 193 | mutagens | 240 | 14.6K | 2 | 2 |
| 194 | Health Policy | 314 | 14.5K | 49 | 29 |
| 195 | Organic Chemistry | 513 | 14.4K | 25 | 46 |
| 196 | Diagnostic Imaging | 349 | 14.3K | 14 | 23 |
| 197 | Antigens | 281 | 14.3K | 2 | 1 |
| 198 | Proteome | 183 | 14.3K | 11 | 11 |
| 199 | Molecular cloning | 288 | 13.9K | 4 | 5 |
| 199 | Genetic recombination | 288 | 13.9K | 4 | 5 |
| 201 | Cell death | 163 | 13.8K | 28 | 43 |
| 202 | Physical Chemistry | 267 | 13.8K | 44 | 52 |
| 203 | diseases | 36 | 13.7K | 13 | 17 |
| 204 | brain mapping | 152 | 13.7K | 7 | 6 |
| 205 | Statistics | 420 | 13.5K | 54 | 75 |
| 206 | Antibodies | 245 | 13.4K | 2 | 1 |
| 207 | Chronic diseases | 141 | 13.3K | 17 | 30 |
| 208 | Magnetic Resonance Imaging | 237 | 13.2K | 1 | 1 |
| 209 | Biometrics | 357 | 13.2K | 6 | 23 |
| 210 | rehabilitation | 237 | 12.9K | 53 | 35 |
| 211 | Disease | 43 | 12.9K | 4 | 17 |
| 212 | infection | 174 | 12.8K | 28 | 15 |
| 213 | Social Psychology | 162 | 12.8K | 142 | 101 |
| 214 | cloning | 142 | 12.7K | 4 | 2 |
| 215 | Sports Medicine | 90 | 12.6K | 319 | 55 |
| 216 | Medical Imaging | 213 | 12.4K | 2 | 1 |
| 217 | Clinical Immunology | 432 | 12.3K | 3 | 4 |
| 218 | biological evolution | 191 | 12.2K | 100 | 144 |
| 219 | Adolescent Medicine | 153 | 12.2K | 13 | 10 |
| 220 | Medical Physics | 283 | 12.0K | 54 | 46 |
| 221 | drug addiction | 254 | 11.8K | 25 | 23 |
| 222 | Neuropsychiatry | 217 | 11.7K | 11 | 6 |
| 223 | Physical Therapy | 176 | 11.7K | 35 | 21 |
| 224 | Sports | 72 | 11.4K | 299 | 28 |
| 225 | Sleep | 298 | 11.3K | 27 | 40 |
| 226 | Antioxidants | 109 | 11.1K | 3 | 2 |
| 227 | Sleep Disorders | 280 | 10.9K | 31 | 41 |
| 228 | Oxidation-reduction | 114 | 10.8K | 7 | 6 |
| 229 | Dermatology | 250 | 10.7K | 63 | 50 |
| 230 | Analytical Chemistry | 237 | 10.6K | 310 | 237 |
| 231 | blood transfusion | 399 | 10.3K | 5 | 3 |
| 232 | Anxiety Disorders | 113 | 10.2K | 17 | 13 |
| 233 | behavioral medicine | 215 | 10.1K | 21 | 43 |
| 234 | Women's health | 238 | 10.1K | 14 | 7 |
| 235 | Anxiety | 109 | 10.0K | 17 | 14 |
| 236 | Immunochemistry | 310 | 10.0K | 1 | 1 |
| 237 | Steroids | 278 | 10.0K | 2 | 2 |
| 238 | Smoking | 179 | 9.9K | 20 | 8 |
| 239 | Drug design | 204 | 9.9K | 4 | 6 |
| 240 | Microbial Ecology | 167 | 9.9K | 121 | 171 |
| 241 | Endocrine glands | 116 | 9.7K | 1 | 1 |
| 242 | DNA repair | 189 | 9.6K | 1 | 1 |
| 243 | Infections | 111 | 9.4K | 29 | 17 |
| 244 | Learning | 126 | 9.3K | 64 | 38 |
| 245 | Research Design | 218 | 9.1K | 10 | 37 |
| 246 | Molecular evolution | 159 | 9.1K | 38 | 70 |
| 247 | drugs | 211 | 9.1K | 42 | 20 |
| 248 | Parasitic Diseases | 141 | 9.0K | 82 | 45 |
| 249 | Developmental Disabilities | 159 | 9.0K | 26 | 32 |
| 250 | Meteorology | 97 | 9.0K | 278 | 172 |
| 251 | Structure-activity relationship | 40 | 8.9K | 9 | 2 |
| 252 | older people | 550 | 8.8K | 9 | 11 |
| 253 | Information Systems | 89 | 8.8K | 30 | 9 |
| 254 | Vision | 106 | 8.8K | 31 | 16 |
| 255 | Biomolecules | 28 | 8.6K | 31 | 3 |
| 256 | health behavior | 234 | 8.5K | 19 | 21 |
| 257 | Materials | 94 | 8.4K | 1354 | 721 |
| 258 | RNA | 123 | 8.3K | 4 | 4 |
| 259 | Molecular Genetics | 177 | 8.3K | 69 | 98 |
| 260 | Hemodynamics | 108 | 8.2K | 16 | 11 |
| 261 | Medical Ethics | 367 | 8.2K | 6 | 3 |
| 262 | Nuclear Medicine | 210 | 8.2K | 14 | 19 |
| 263 | Leukemia | 152 | 8.1K | 30 | 70 |
| 264 | Environmental Microbiology | 89 | 7.9K | 50 | 38 |
| 265 | Health Education | 225 | 7.8K | 55 | 42 |
| 266 | chronic disease | 105 | 7.7K | 5 | 3 |
| 267 | Systems Biology | 259 | 7.7K | 8 | 8 |
| 267 | Drug delivery systems | 76 | 7.7K | 75 | 33 |
| 269 | Proteomics | 129 | 7.7K | 10 | 14 |
| 270 | cytokines | 114 | 7.7K | 34 | 4 |
| 271 | Muscles | 137 | 7.6K | 12 | 8 |
| 272 | Bioethics | 292 | 7.5K | 5 | 2 |
| 273 | Chromosomes | 158 | 7.5K | 5 | 7 |
| 274 | Evolution | 146 | 7.4K | 125 | 174 |
| 275 | Image Processing | 85 | 7.3K | 237 | 142 |
| 276 | Kidney diseases | 133 | 7.3K | 36 | 13 |
| 277 | Adolescent | 305 | 7.2K | 44 | 68 |
| 278 | Parasites | 138 | 7.2K | 46 | 27 |
| 279 | Depression | 80 | 7.1K | 12 | 12 |
| 280 | Genes | 198 | 7.1K | 8 | 12 |
| 281 | Clinical Trials | 171 | 7.1K | 5 | 5 |
| 282 | Electronics | 141 | 6.9K | 419 | 213 |
| 283 | Thrombosis | 115 | 6.9K | 32 | 27 |
| 283 | Synapses | 135 | 6.9K | 1 | 2 |
| 285 | mutation | 131 | 6.9K | 4 | 9 |
| 286 | Autoimmunity | 128 | 6.9K | 10 | 10 |
| 287 | Environmental Engineering | 114 | 6.9K | 367 | 308 |
| 288 | Malaria | 149 | 6.9K | 17 | 12 |
| 289 | Environmental monitoring | 165 | 6.9K | 180 | 232 |
| 290 | Bioenergetics | 86 | 6.7K | 36 | 15 |
| 291 | Eating Disorders | 99 | 6.7K | 45 | 19 |
| 292 | Autoimmune diseases | 136 | 6.7K | 5 | 6 |
| 293 | Nuclear Physics | 54 | 6.7K | 1370 | 662 |
| 294 | Feeding and Eating Disorders | 95 | 6.6K | 44 | 18 |
| 295 | Statistical physics | 186 | 6.6K | 451 | 346 |
| 296 | Electrophoresis | 277 | 6.5K | 5 | 13 |
| 297 | Energy metabolism | 84 | 6.5K | 33 | 16 |
| 298 | Signal Processing | 37 | 6.5K | 714 | 224 |
| 299 | Neurotransmitters | 73 | 6.5K | 15 | 6 |
| 300 | ethanol | 151 | 6.4K | 1 | 1 |
| 301 | Community Psychiatry | 166 | 6.4K | 16 | 20 |
| 302 | Engineering | 146 | 6.4K | 325 | 134 |
| 303 | Neuropharmacology | 179 | 6.4K | 2 | 2 |
| 304 | Nephrology | 104 | 6.4K | 35 | 14 |
| 305 | Psychosomatic Medicine | 102 | 6.3K | 26 | 29 |
| 306 | Chemotherapy | 138 | 6.3K | 36 | 19 |
| 307 | Cytokine | 81 | 6.2K | 1 | 1 |
| 308 | Neuroimmunology | 131 | 6.2K | 8 | 18 |
| 309 | Medical Anthropology | 142 | 6.2K | 54 | 86 |
| 310 | Chemical Engineering | 29 | 6.1K | 1693 | 587 |
| 311 | Bones | 114 | 6.1K | 13 | 20 |
| 312 | Sociology | 119 | 6.0K | 278 | 198 |
| 313 | Neurosurgery | 85 | 6.0K | 29 | 23 |
| 314 | vascular diseases | 80 | 5.9K | 30 | 22 |
| 315 | collagen | 73 | 5.7K | 2 | 2 |
| 316 | human development | 80 | 5.7K | 44 | 28 |
| 317 | calcification | 104 | 5.7K | 4 | 3 |
| 318 | child behavior | 22 | 5.6K | 73 | 1 |
| 319 | heredity | 162 | 5.5K | 5 | 7 |
| 320 | Materials Science | 74 | 5.5K | 1018 | 620 |
| 321 | Pollution | 120 | 5.5K | 726 | 787 |
| 322 | Radiation | 156 | 5.5K | 55 | 40 |
| 323 | Pharmacogenetics | 172 | 5.4K | 5 | 20 |
| 324 | Teratology | 107 | 5.4K | 2 | 2 |
| 325 | Astrocytes | 68 | 5.4K | 8 | 8 |
| 326 | Extracellular matrix | 70 | 5.4K | 2 | 2 |
| 327 | Inflammation | 104 | 5.4K | 16 | 12 |
| 328 | Growth factors | 56 | 5.4K | 3 | 3 |
| 329 | Autoantibodies | 109 | 5.4K | 6 | 7 |
| 330 | Mass Spectrometry | 119 | 5.4K | 27 | 22 |
| 331 | Neuromuscular diseases | 119 | 5.3K | 12 | 10 |
| 332 | psychotherapy | 59 | 5.3K | 197 | 107 |
| 333 | Pharmacy | 154 | 5.3K | 107 | 85 |
| 334 | Genetic epidemiology | 154 | 5.2K | 4 | 7 |
| 335 | Radioisotopes | 235 | 5.1K | 4 | 5 |
| 336 | cell interaction | 142 | 5.1K | 8 | 6 |
| 337 | Medical Technology | 126 | 5.1K | 17 | 22 |
| 338 | Mental Health | 140 | 5.1K | 55 | 35 |
| 339 | Psychoneuroimmunology | 95 | 5.1K | 9 | 20 |
| 340 | children | 24 | 5.1K | 101 | 2 |
| 341 | Photochemistry | 96 | 5.1K | 49 | 19 |
| 342 | behavior modification | 24 | 5.0K | 95 | 15 |
| 343 | scientific societies | 131 | 5.0K | 12 | 10 |
| 344 | Light | 93 | 5.0K | 30 | 98 |
| 345 | Botany | 54 | 5.0K | 1005 | 586 |
| 346 | Chromatographic analysis | 254 | 5.0K | 12 | 14 |
| 347 | Elderly | 394 | 4.9K | 10 | 6 |
| 348 | Lipid | 60 | 4.9K | 3 | 2 |
| 349 | Lipid metabolism | 59 | 4.9K | 4 | 2 |
| 350 | Retina | 36 | 4.9K | 3 | 8 |
| 351 | Biomechanics | 113 | 4.8K | 74 | 88 |
| 351 | child abuse | 59 | 4.8K | 72 | 29 |
| 353 | Europe | 111 | 4.8K | 313 | 159 |
| 354 | Informatics | 100 | 4.8K | 5 | 15 |
| 355 | disease outbreaks | 107 | 4.8K | 11 | 15 |
| 356 | Mycology | 100 | 4.8K | 108 | 81 |
| 357 | Epidemics | 104 | 4.8K | 11 | 15 |
| 358 | Lung Transplantation | 34 | 4.7K | 70 | 29 |
| 358 | Heart transplantation | 34 | 4.7K | 70 | 29 |
| 360 | cell membrane | 81 | 4.6K | 32 | 27 |
| 361 | Psychometrics | 4 | 4.6K | 372 | 40 |
| 362 | Nitric oxide | 27 | 4.5K | 8 | 1 |
| 363 | Technology | 141 | 4.5K | 336 | 307 |
| 364 | Dentistry | 149 | 4.5K | 11 | 3 |
| 365 | environmental protection | 81 | 4.5K | 350 | 257 |
| 366 | Environmental Policy | 79 | 4.4K | 347 | 340 |
| 367 | Molecular Imaging | 95 | 4.4K | 32 | 46 |
| 368 | Bipolar Disorder | 96 | 4.4K | 14 | 20 |
| 369 | Speech Disorders | 82 | 4.4K | 119 | 60 |
| 370 | eye | 29 | 4.4K | 8 | 13 |
| 371 | Computer Vision | 58 | 4.4K | 108 | 107 |
| 372 | amino acids | 55 | 4.4K | 10 | 3 |
| 373 | mammals | 178 | 4.3K | 13 | 15 |
| 374 | Genetic disorders | 113 | 4.3K | 10 | 10 |
| 375 | Molecules | 12 | 4.3K | 731 | 62 |
| 376 | Autism | 76 | 4.3K | 41 | 34 |
| 377 | rare diseases | 86 | 4.2K | 7 | 6 |
| 378 | Environmental Law | 73 | 4.1K | 52 | 87 |
| 379 | Pharmacokinetics | 60 | 4.1K | 39 | 11 |
| 380 | Pharmacognosy | 62 | 4.1K | 186 | 92 |
| 381 | Audiology | 122 | 4.1K | 37 | 41 |
| 382 | glycoproteins | 70 | 4.0K | 14 | 10 |
| 382 | Glycoconjugates | 70 | 4.0K | 14 | 10 |
| 382 | glycolipids | 70 | 4.0K | 14 | 10 |
| 385 | Insects | 48 | 4.0K | 191 | 56 |
| 386 | Optics | 285 | 4.0K | 370 | 466 |
| 387 | Developing countries | 106 | 4.0K | 134 | 120 |
| 388 | Immunogenetics | 108 | 4.0K | 12 | 21 |
| 389 | soil microbiology | 28 | 4.0K | 375 | 172 |
| 390 | Environmental Chemistry | 44 | 4.0K | 326 | 256 |
| 391 | epilepsy | 78 | 4.0K | 46 | 27 |
| 392 | Flow cytometry | 94 | 4.0K | 3 | 2 |
| 393 | Dietetics | 110 | 4.0K | 21 | 11 |
| 394 | Geriatric Oncology | 27 | 4.0K | 69 | 6 |
| 395 | Hippocampus | 50 | 3.9K | 12 | 17 |
| 396 | miniaturization | 48 | 3.9K | 340 | 292 |
| 397 | Personality Assessment | 31 | 3.9K | 88 | 28 |
| 398 | prostaglandins | 97 | 3.9K | 4 | 4 |
| 399 | Mathematics | 160 | 3.9K | 952 | 552 |
| 400 | Ethics | 120 | 3.8K | 8 | 5 |
| 401 | Spectrum analysis | 152 | 3.8K | 445 | 699 |
| 402 | complementary therapies | 103 | 3.8K | 82 | 38 |
| 403 | Primates | 143 | 3.8K | 17 | 32 |
| 404 | Entomology | 138 | 3.8K | 171 | 133 |
| 405 | Psycholinguistics | 52 | 3.7K | 126 | 91 |
| 406 | medical education | 101 | 3.7K | 172 | 132 |
| 407 | Cardiovascular diseases | 99 | 3.7K | 104 | 85 |
| 408 | Speech | 61 | 3.7K | 101 | 56 |
| 409 | Carbohydrates | 73 | 3.6K | 2 | 7 |
| 409 | disease vectors | 70 | 3.6K | 50 | 27 |
| 411 | Oxidative stress | 69 | 3.5K | 40 | 41 |
| 412 | Nonlinear Dynamics | 109 | 3.5K | 281 | 247 |
| 413 | Neurovirology | 97 | 3.5K | 3 | 4 |
| 414 | Bone diseases | 52 | 3.5K | 10 | 21 |
| 415 | Pharmaceutical Technology | 50 | 3.5K | 176 | 65 |
| 415 | Neurotoxicology | 66 | 3.5K | 10 | 6 |
| 417 | natural products | 61 | 3.4K | 164 | 76 |
| 418 | DNS | 95 | 3.4K | 5 | 4 |
| 419 | adolescence | 92 | 3.4K | 51 | 61 |
| 420 | Psychiatric Epidemiology | 45 | 3.4K | 32 | 13 |
| 421 | Polymers | 113 | 3.4K | 789 | 745 |
| 422 | Surface Chemistry | 72 | 3.3K | 778 | 589 |
| 423 | Reproductive toxicology | 63 | 3.3K | 6 | 12 |
| 424 | Plant cells | 14 | 3.3K | 526 | 329 |
| 425 | Food | 103 | 3.3K | 267 | 330 |
| 426 | Insect biochemistry | 44 | 3.2K | 37 | 24 |
| 427 | Intellectual disability | 93 | 3.2K | 47 | 45 |
| 428 | Mental Health Services | 137 | 3.2K | 43 | 50 |
| 429 | Health Services Research | 71 | 3.2K | 181 | 128 |
| 430 | Communication | 73 | 3.2K | 253 | 204 |
| 431 | language | 41 | 3.2K | 107 | 55 |
| 432 | Long-Term Care | 22 | 3.1K | 102 | 49 |
| 432 | Long-term care facilities | 22 | 3.1K | 102 | 49 |
| 434 | Hospitals | 95 | 3.1K | 45 | 33 |
| 435 | Social behavior | 53 | 3.1K | 141 | 116 |
| 436 | Oligosaccharide | 45 | 3.1K | 12 | 8 |
| 437 | Artificial Intelligence | 58 | 3.0K | 783 | 518 |
| 438 | Education | 65 | 3.0K | 660 | 346 |
| 439 | Contraception | 88 | 2.9K | 24 | 25 |
| 440 | Nutrition physiology | 56 | 2.9K | 32 | 26 |
| 441 | Microelectronics | 25 | 2.9K | 620 | 322 |
| 442 | Biopharmaceutics | 84 | 2.9K | 35 | 46 |
| 443 | Neurolinguistics | 38 | 2.9K | 33 | 25 |
| 444 | Industrial Microbiology | 50 | 2.8K | 222 | 190 |
| 445 | Alternative Medicine | 95 | 2.8K | 82 | 58 |
| 446 | Melanoma | 53 | 2.8K | 4 | 4 |
| 447 | environmental exposure | 92 | 2.8K | 72 | 108 |
| 448 | Colloids | 80 | 2.8K | 719 | 741 |
| 449 | Bacteria | 53 | 2.7K | 13 | 25 |
| 450 | DNA | 109 | 2.7K | 1 | 1 |
| 451 | Thorax | 64 | 2.7K | 48 | 33 |
| 452 | Digestive system diseases | 76 | 2.7K | 57 | 39 |
| 453 | Comparative Physiology | 71 | 2.7K | 50 | 51 |
| 454 | Analytical Toxicology | 45 | 2.7K | 8 | 3 |
| 455 | Plants | 12 | 2.7K | 1095 | 386 |
| 456 | Chromatography | 105 | 2.7K | 56 | 52 |
| 457 | Synaptic Transmission | 59 | 2.7K | 18 | 13 |
| 458 | Liquid chromatography | 170 | 2.6K | 1 | 1 |
| 459 | Energy Conversion | 3 | 2.6K | 1266 | 306 |
| 460 | Toxins | 54 | 2.6K | 44 | 32 |
| 461 | visualization | 315 | 2.6K | 10 | 48 |
| 462 | occupational diseases | 74 | 2.6K | 41 | 55 |
| 463 | Metastasis | 22 | 2.6K | 7 | 7 |
| 464 | Orthopedics | 52 | 2.6K | 269 | 165 |
| 465 | Protozoa | 31 | 2.6K | 41 | 28 |
| 466 | health services | 59 | 2.6K | 103 | 70 |
| 467 | Tribology | 42 | 2.6K | 170 | 63 |
| 468 | venom | 49 | 2.6K | 46 | 32 |
| 469 | Communication in medicine | 45 | 2.5K | 63 | 29 |
| 470 | plant molecular biology | 9 | 2.5K | 862 | 389 |
| 471 | Interferons | 58 | 2.5K | 2 | 3 |
| 472 | Personality Disorders | 23 | 2.5K | 44 | 14 |
| 473 | Electrochemistry | 43 | 2.5K | 1128 | 633 |
| 474 | Quality of life | 59 | 2.5K | 105 | 125 |
| 475 | Nanostructured Materials | 36 | 2.4K | 1020 | 660 |
| 476 | Genetic Counseling | 78 | 2.4K | 5 | 3 |
| 477 | Anthropology | 55 | 2.4K | 246 | 123 |
| 478 | Culture techniques | 107 | 2.4K | 2 | 6 |
| 479 | Zoology | 25 | 2.4K | 896 | 283 |
| 480 | Cytoskeleton | 59 | 2.4K | 5 | 5 |
| 481 | Social problems | 33 | 2.4K | 60 | 51 |
| 482 | Emerging infectious diseases | 39 | 2.4K | 15 | 12 |
| 483 | Andrology | 74 | 2.4K | 17 | 20 |
| 484 | Infection control | 48 | 2.3K | 35 | 20 |
| 485 | eugenics | 79 | 2.3K | 10 | 12 |
| 486 | Emotions | 28 | 2.3K | 113 | 66 |
| 487 | drug abuse | 90 | 2.3K | 23 | 23 |
| 488 | Functional Genomics | 54 | 2.3K | 4 | 8 |
| 489 | Learning disabilities | 52 | 2.3K | 82 | 48 |
| 490 | environmental pollution | 78 | 2.3K | 737 | 972 |
| 491 | Reproductive health | 60 | 2.3K | 35 | 31 |
| 492 | Sarcopenia | 18 | 2.3K | 49 | 11 |
| 493 | Birth control | 68 | 2.2K | 16 | 20 |
| 494 | Post-traumatic stress disorder | 32 | 2.2K | 140 | 75 |
| 495 | Consciousness | 26 | 2.2K | 48 | 12 |
| 496 | Immunopharmacology | 58 | 2.2K | 63 | 43 |
| 497 | vitamins | 38 | 2.2K | 1 | 1 |
| 498 | Behavioral Genetics | 37 | 2.2K | 20 | 14 |
| 499 | Family | 48 | 2.2K | 133 | 86 |
| 500 | feeding behavior | 67 | 2.1K | 32 | 52 |
| 501 | locomotion | 31 | 2.1K | 74 | 45 |
| 501 | posture | 31 | 2.1K | 74 | 45 |
| 501 | gait | 31 | 2.1K | 74 | 45 |
| 501 | walking | 31 | 2.1K | 74 | 45 |
| 505 | Nanoparticles | 25 | 2.1K | 545 | 242 |
| 506 | Neuroendocrinology | 15 | 2.1K | 11 | 11 |
| 507 | Hematopoietic stem cell transplantation | 47 | 2.1K | 7 | 5 |
| 508 | tomography | 49 | 2.1K | 20 | 13 |
| 509 | Radiology | 83 | 2.0K | 107 | 84 |
| 510 | Radio | 29 | 2.0K | 463 | 311 |
| 511 | biomedicine | 73 | 2.0K | 19 | 19 |
| 512 | Endocrine system | 358 | 1.9K | 2 | 6 |
| 513 | Vaccination | 48 | 1.9K | 3 | 3 |
| 514 | Community Psychology | 32 | 1.9K | 74 | 80 |
| 515 | Developmental Neurobiology | 54 | 1.9K | 10 | 10 |
| 516 | biobanks | 24 | 1.9K | 8 | 1 |
| 516 | Chemical analysis | 38 | 1.9K | 107 | 54 |
| 518 | Diagnosis | 61 | 1.9K | 19 | 4 |
| 519 | Genetic Toxicology | 32 | 1.9K | 30 | 30 |
| 520 | Molecular Spectroscopy | 62 | 1.9K | 147 | 102 |
| 521 | Social Sciences | 72 | 1.9K | 510 | 357 |
| 522 | vitamin C | 26 | 1.9K | 20 | 10 |
| 522 | vitamin E | 26 | 1.9K | 20 | 10 |
| 524 | Cybernetics | 34 | 1.8K | 345 | 289 |
| 525 | Dyslexia | 4 | 1.8K | 99 | 1 |
| 526 | Apoptosis | 30 | 1.8K | 14 | 3 |
| 526 | neurotoxins | 30 | 1.8K | 14 | 3 |
| 526 | Neurotoxic agents | 30 | 1.8K | 14 | 3 |
| 526 | Nerve regeneration | 30 | 1.8K | 14 | 3 |
| 530 | Food additives | 66 | 1.8K | 67 | 154 |
| 531 | Nursing | 100 | 1.8K | 112 | 124 |
| 532 | Child welfare | 44 | 1.8K | 141 | 64 |
| 532 | cell movement | 40 | 1.8K | 7 | 13 |
| 534 | Tropical Medicine | 66 | 1.8K | 156 | 139 |
| 535 | Bacterial diseases | 22 | 1.8K | 13 | 5 |
| 536 | Clinical Pharmacology | 58 | 1.8K | 154 | 151 |
| 537 | families | 32 | 1.7K | 147 | 61 |
| 538 | Biological Systems | 37 | 1.7K | 35 | 18 |
| 539 | Geriatric Psychiatry | 58 | 1.7K | 88 | 119 |
| 540 | Histocompatibility Testing | 44 | 1.7K | 24 | 10 |
| 541 | Cell communication | 58 | 1.7K | 24 | 45 |
| 542 | ethnicity | 71 | 1.7K | 18 | 8 |
| 542 | Drug discovery | 54 | 1.7K | 2 | 2 |
| 544 | Physical fitness | 35 | 1.7K | 167 | 131 |
| 545 | health and race | 70 | 1.7K | 3 | 2 |
| 546 | mental health policy | 13 | 1.7K | 67 | 15 |
| 547 | Primary health care | 82 | 1.7K | 154 | 196 |
| 548 | Occupational Health | 73 | 1.6K | 61 | 79 |
| 549 | Adolescent Psychology | 48 | 1.6K | 95 | 108 |
| 550 | sexual behavior | 28 | 1.6K | 100 | 60 |
| 551 | Public Policy | 56 | 1.6K | 218 | 256 |
| 552 | sanitation | 28 | 1.6K | 443 | 521 |
| 553 | drug resistance | 26 | 1.6K | 59 | 24 |
| 554 | Emergency Medicine | 38 | 1.6K | 282 | 141 |
| 555 | evaluation | 44 | 1.6K | 1 | 1 |
| 556 | Program Evaluation | 42 | 1.6K | 1 | 2 |
| 557 | Demography | 46 | 1.6K | 77 | 80 |
| 558 | Cell division | 45 | 1.6K | 30 | 26 |
| 559 | Cheminformatics | 38 | 1.6K | 7 | 47 |
| 560 | Health Services Administration | 45 | 1.5K | 104 | 94 |
| 561 | Maternal health services | 38 | 1.5K | 38 | 23 |
| 562 | abnormalities | 34 | 1.5K | 9 | 10 |
| 563 | counseling | 52 | 1.5K | 191 | 183 |
| 564 | polymerization | 70 | 1.5K | 872 | 950 |
| 565 | Hearing | 50 | 1.5K | 102 | 85 |
| 566 | Population | 27 | 1.5K | 204 | 102 |
| 567 | peptides | 73 | 1.5K | 17 | 27 |
| 568 | Neonatology | 26 | 1.5K | 73 | 34 |
| 569 | Animal welfare | 32 | 1.5K | 10 | 6 |
| 570 | Population Genetics | 18 | 1.5K | 460 | 312 |
| 571 | Nutritional support | 13 | 1.5K | 28 | 7 |
| 572 | Gene expression | 35 | 1.5K | 25 | 24 |
| 573 | Agricultural Chemistry | 56 | 1.5K | 357 | 449 |
| 573 | liver | 42 | 1.5K | 15 | 4 |
| 575 | biochemical markers | 47 | 1.5K | 33 | 20 |
| 576 | Fluorescence spectroscopy | 46 | 1.5K | 6 | 5 |
| 577 | Water | 26 | 1.4K | 782 | 757 |
| 578 | biological factors | 46 | 1.4K | 267 | 302 |
| 579 | Water pollution | 28 | 1.4K | 856 | 741 |
| 580 | primary prevention | 31 | 1.4K | 37 | 13 |
| 581 | Cerebellum | 17 | 1.4K | 46 | 19 |
| 581 | Cerebellar ataxia | 17 | 1.4K | 46 | 19 |
| 583 | Longevity | 29 | 1.4K | 6 | 2 |
| 584 | embryonic development | 34 | 1.4K | 29 | 29 |
| 584 | toxicity testing | 39 | 1.4K | 41 | 50 |
| 586 | Algal blooms | 12 | 1.4K | 79 | 47 |
| 586 | Cyanobacteria | 12 | 1.4K | 79 | 47 |
| 586 | microalgae | 12 | 1.4K | 79 | 47 |
| 589 | Chemical Ecology | 28 | 1.4K | 91 | 77 |
| 589 | Hemostasis | 53 | 1.4K | 40 | 47 |
| 589 | Appetite | 39 | 1.4K | 62 | 88 |
| 592 | chromatin | 27 | 1.4K | 2 | 3 |
| 593 | Hemophilia | 21 | 1.4K | 114 | 48 |
| 594 | Dental Public Health | 84 | 1.4K | 3 | 5 |
| 595 | Youth | 30 | 1.4K | 115 | 113 |
| 596 | animals | 27 | 1.4K | 269 | 106 |
| 597 | Psychiatric hospitals | 73 | 1.4K | 19 | 37 |
| 598 | Protein engineering | 39 | 1.3K | 5 | 24 |
| 599 | Optical materials | 14 | 1.3K | 1318 | 799 |
| 600 | rejuvenation | 23 | 1.3K | 7 | 2 |
| 601 | Ultrasonics | 23 | 1.3K | 291 | 177 |
| 602 | Pharmacogenomics | 33 | 1.3K | 7 | 8 |
| 603 | Morphology | 31 | 1.3K | 124 | 79 |
| 604 | drug evaluation | 50 | 1.3K | 87 | 99 |
| 605 | software | 29 | 1.3K | 121 | 97 |
| 606 | healthcare disparities | 50 | 1.3K | 28 | 30 |
| 606 | Parkinson's disease | 38 | 1.3K | 2 | 8 |
| 608 | Electrochemical Analysis | 13 | 1.3K | 697 | 223 |
| 609 | Randomized Controlled Trials | 62 | 1.2K | 84 | 77 |
| 610 | behavior therapy | 50 | 1.2K | 134 | 178 |
| 611 | Asthma | 49 | 1.2K | 36 | 42 |
| 612 | Language Disorders | 35 | 1.2K | 167 | 126 |
| 613 | Patient education | 36 | 1.2K | 80 | 105 |
| 614 | Androgens | 34 | 1.2K | 10 | 20 |
| 615 | Information Science | 76 | 1.2K | 219 | 490 |
| 616 | Parenteral nutrition | 33 | 1.2K | 164 | 244 |
| 617 | Language Acquisition | 15 | 1.2K | 129 | 51 |
| 617 | pheromones | 26 | 1.2K | 84 | 84 |
| 619 | Nuclear Engineering | 42 | 1.2K | 391 | 241 |
| 620 | Respiratory Infections | 39 | 1.2K | 13 | 6 |
| 621 | Comparative Psychology | 14 | 1.2K | 24 | 17 |
| 621 | Molecular ecology | 18 | 1.2K | 409 | 388 |
| 623 | Influenza | 38 | 1.2K | 5 | 4 |
| 624 | psychopathology | 22 | 1.2K | 70 | 81 |
| 625 | Otolaryngology | 42 | 1.1K | 74 | 83 |
| 626 | Environmental pollutants | 38 | 1.1K | 405 | 512 |
| 627 | Human biology | 39 | 1.1K | 56 | 46 |
| 628 | Combinatorial chemistry | 25 | 1.1K | 174 | 189 |
| 629 | DNA methylation | 34 | 1.1K | 12 | 22 |
| 630 | Cellular senescence | 35 | 1.1K | 54 | 94 |
| 630 | Chemical processes | 2 | 1.1K | 827 | 40 |
| 632 | Radiopharmaceuticals | 110 | 1.1K | 2 | 5 |
| 632 | Documentation | 27 | 1.1K | 36 | 30 |
| 634 | Microcirculation | 32 | 1.1K | 34 | 43 |
| 635 | molecular design | 39 | 1.1K | 10 | 30 |
| 636 | mental processes | 61 | 1.1K | 9 | 21 |
| 637 | Nanostructures | 25 | 1.1K | 627 | 573 |
| 638 | Biosensors | 17 | 1.1K | 434 | 397 |
| 639 | Breeding | 18 | 1.1K | 425 | 247 |
| 640 | Neurogenetics | 41 | 1.1K | 7 | 10 |
| 641 | Computer Graphics | 38 | 1.1K | 355 | 367 |
| 642 | Electrophysiology | 39 | 1.1K | 163 | 137 |
| 643 | Health insurance | 37 | 1.1K | 68 | 108 |
| 644 | monoclonal antibodies | 36 | 1.0K | 12 | 17 |
| 645 | Yeast | 33 | 1.0K | 31 | 55 |
| 646 | Electron Microscopy | 32 | 1.0K | 21 | 11 |
| 647 | health services accessibility | 50 | 1.0K | 76 | 124 |
| 648 | Fungi | 12 | 1.0K | 484 | 287 |
| 649 | Computer-Aided Design | 36 | 1.0K | 165 | 181 |
| 650 | food technology | 35 | 1.0K | 577 | 659 |
| 650 | Heart Failure | 30 | 1.0K | 67 | 100 |
| 652 | risk factors | 32 | 1.0K | 108 | 134 |
| 653 | Parenting | 10 | 1.0K | 3 | 2 |
| 653 | Child rearing | 10 | 1.0K | 3 | 2 |
| 655 | Australia | 31 | 996 | 371 | 248 |
| 656 | Medicinal plants | 13 | 994 | 563 | 322 |
| 657 | Condensed Matter | 28 | 993 | 1411 | 1145 |
| 658 | Language Development | 12 | 990 | 59 | 24 |
| 659 | Socialization | 14 | 986 | 165 | 103 |
| 660 | Solid State Physics | 23 | 984 | 1691 | 1229 |
| 661 | Oligosaccharides | 25 | 983 | 17 | 14 |
| 662 | Integrative Medicine | 5 | 980 | 163 | 5 |
| 663 | Pregnancy | 29 | 978 | 121 | 101 |
| 664 | Spine | 8 | 974 | 380 | 189 |
| 665 | Mathematical Physics | 52 | 967 | 682 | 676 |
| 666 | Suicide | 26 | 963 | 79 | 68 |
| 667 | Marine Biology | 27 | 961 | 866 | 790 |
| 668 | Bioelectronics | 10 | 955 | 521 | 392 |
| 669 | Photography | 215 | 954 | 136 | 106 |
| 670 | General Surgery | 38 | 951 | 125 | 94 |
| 670 | Animal ecology | 15 | 951 | 480 | 303 |
| 672 | Bioinorganic chemistry | 38 | 943 | 290 | 298 |
| 673 | Metallurgy | 16 | 939 | 1011 | 635 |
| 674 | Biodiversity | 22 | 926 | 712 | 681 |
| 675 | Social support | 24 | 922 | 6 | 4 |
| 675 | Social environment | 24 | 922 | 6 | 4 |
| 677 | Antiviral agents | 29 | 913 | 26 | 29 |
| 678 | pollutants | 28 | 908 | 418 | 521 |
| 679 | Plant breeding | 12 | 905 | 329 | 126 |
| 680 | Radiation Protection | 43 | 903 | 45 | 17 |
| 680 | health planning | 40 | 903 | 349 | 338 |
| 682 | Chronobiology | 29 | 900 | 41 | 42 |
| 682 | biological clocks | 29 | 900 | 41 | 42 |
| 682 | circadian rhythm | 29 | 900 | 41 | 42 |
| 682 | biological rhythms | 29 | 900 | 40 | 42 |
| 686 | Sonochemistry | 9 | 895 | 221 | 110 |
| 687 | Marriage | 11 | 880 | 179 | 60 |
| 688 | Ethnology | 27 | 879 | 337 | 165 |
| 689 | Cell survival | 16 | 872 | 18 | 17 |
| 689 | molecular chaperones | 16 | 872 | 19 | 17 |
| 691 | Food Microbiology | 26 | 867 | 273 | 386 |
| 692 | Circadian rhythms | 26 | 865 | 33 | 40 |
| 693 | Professional ethics | 20 | 863 | 15 | 7 |
| 694 | radiation monitoring | 40 | 859 | 43 | 16 |
| 695 | Quality Control | 30 | 847 | 317 | 338 |
| 696 | family studies | 6 | 843 | 8 | 2 |
| 697 | Asia | 59 | 838 | 291 | 377 |
| 698 | Menopause | 19 | 828 | 46 | 35 |
| 699 | Evolutionary Genetics | 23 | 826 | 62 | 65 |
| 699 | Molecular Epidemiology | 23 | 826 | 62 | 65 |
| 701 | Enteral nutrition | 19 | 823 | 210 | 259 |
| 702 | Peptide | 42 | 821 | 10 | 18 |
| 703 | industrial hygiene | 61 | 811 | 60 | 87 |
| 704 | Computer Science | 26 | 807 | 525 | 278 |
| 704 | System analysis | 22 | 807 | 842 | 602 |
| 706 | Geriatric Medicine | 32 | 803 | 4 | 5 |
| 707 | Educational Psychology | 25 | 800 | 426 | 413 |
| 708 | violence | 26 | 795 | 235 | 244 |
| 709 | Periodontics | 36 | 789 | 1 | 4 |
| 710 | preimplantation genetic diagnosis | 21 | 786 | 72 | 37 |
| 710 | embryo transfer | 21 | 786 | 79 | 42 |
| 712 | Animal breeding | 9 | 779 | 424 | 159 |
| 712 | Neural circuitry | 25 | 779 | 517 | 571 |
| 714 | Genetic testing | 34 | 776 | 3 | 1 |
| 715 | Microbial Biotechnology | 14 | 774 | 238 | 139 |
| 716 | Mitochondria | 22 | 768 | 11 | 23 |
| 717 | Astronomy | 3 | 767 | 2527 | 1198 |
| 718 | Genetic Research | 20 | 764 | 7 | 10 |
| 719 | Developmental Immunology | 31 | 762 | 96 | 148 |
| 720 | disease susceptibility | 16 | 742 | 46 | 14 |
| 720 | symptoms | 16 | 742 | 46 | 14 |
| 722 | Engineering Ethics | 16 | 741 | 20 | 10 |
| 723 | Vocational guidance | 15 | 740 | 299 | 289 |
| 724 | Jurisprudence | 35 | 737 | 163 | 159 |
| 725 | Information Technology | 50 | 735 | 310 | 685 |
| 726 | motivation | 7 | 723 | 163 | 77 |
| 727 | Pancreatic diseases | 5 | 718 | 241 | 47 |
| 728 | Amyotrophic Lateral Sclerosis | 21 | 716 | 39 | 44 |
| 729 | Blood vessels | 25 | 694 | 24 | 45 |
| 730 | biopolymers | 22 | 693 | 382 | 375 |
| 731 | Respiratory system | 41 | 688 | 41 | 134 |
| 732 | Brain damage | 16 | 681 | 101 | 87 |
| 733 | Social work | 56 | 677 | 193 | 274 |
| 734 | Emotion | 4 | 673 | 150 | 54 |
| 735 | Neuroplasticity | 18 | 672 | 44 | 22 |
| 735 | neuronal plasticity | 18 | 672 | 25 | 16 |
| 737 | Protein folding | 20 | 670 | 4 | 5 |
| 738 | cross-cultural comparison | 36 | 667 | 26 | 48 |
| 739 | Wildlife conservation | 5 | 666 | 914 | 490 |
| 740 | animal diseases | 8 | 664 | 244 | 79 |
| 741 | Phylogeny | 10 | 655 | 411 | 314 |
| 742 | Soft Condensed Matter | 22 | 652 | 351 | 362 |
| 743 | sex differences | 11 | 647 | 12 | 18 |
| 744 | Linguistics | 18 | 634 | 562 | 311 |
| 745 | Neuroimaging | 48 | 633 | 15 | 40 |
| 745 | Industrial Safety | 20 | 633 | 257 | 246 |
| 747 | Heterocyclic compounds | 46 | 630 | 95 | 84 |
| 748 | Global Health | 53 | 620 | 74 | 160 |
| 748 | Plant genetic engineering | 23 | 620 | 222 | 367 |
| 748 | ecosystem | 19 | 620 | 432 | 588 |
| 748 | hygiene | 15 | 620 | 104 | 68 |
| 752 | role | 8 | 618 | 201 | 120 |
| 752 | gene transfer | 26 | 618 | 8 | 30 |
| 752 | genetic transformation | 26 | 618 | 8 | 30 |
| 755 | Animal Biotechnology | 6 | 617 | 88 | 14 |
| 756 | transgenic organisms | 22 | 615 | 14 | 41 |
| 756 | transgenic animals | 22 | 615 | 14 | 35 |
| 756 | Measurement | 9 | 615 | 675 | 263 |
| 756 | Transgenic plants | 22 | 615 | 71 | 122 |
| 760 | Osteoporosis | 19 | 600 | 35 | 42 |
| 761 | Sustainable Development | 4 | 591 | 1867 | 704 |
| 762 | Experimental Psychology | 17 | 584 | 181 | 212 |
| 763 | Aggression | 14 | 583 | 136 | 145 |
| 764 | Pediatric Hematology | 25 | 582 | 46 | 19 |
| 765 | Cell adhesion | 20 | 578 | 4 | 15 |
| 766 | Cardiac electrophysiology | 7 | 573 | 128 | 65 |
| 766 | Water quality management | 12 | 573 | 877 | 509 |
| 766 | arrhythmia | 7 | 573 | 128 | 65 |
| 769 | Engineering Mathematics | 5 | 572 | 2086 | 529 |
| 770 | Metals | 9 | 570 | 1266 | 805 |
| 771 | Physical organic chemistry | 22 | 567 | 425 | 408 |
| 771 | cardiac catheterization | 36 | 567 | 127 | 174 |
| 773 | nucleotides | 51 | 561 | 14 | 14 |
| 774 | Cross-Cultural Studies | 32 | 558 | 44 | 97 |
| 775 | Zoonoses | 19 | 557 | 31 | 45 |
| 776 | standardization | 3 | 554 | 50 | 3 |
| 777 | Immunotoxicology | 26 | 548 | 11 | 17 |
| 778 | Evidence-Based Medicine | 29 | 547 | 195 | 241 |
| 779 | emergency management | 19 | 543 | 139 | 146 |
| 780 | Frontotemporal lobar degeneration | 14 | 542 | 50 | 36 |
| 781 | Library Science | 32 | 539 | 174 | 96 |
| 782 | North America | 17 | 522 | 221 | 128 |
| 783 | Pituitary gland | 13 | 520 | 47 | 40 |
| 784 | Health Physics | 19 | 519 | 12 | 10 |
| 785 | Forensic Psychiatry | 16 | 514 | 165 | 104 |
| 786 | Socioeconomic Factors | 16 | 503 | 208 | 193 |
| 787 | Neuroanatomy | 9 | 501 | 55 | 28 |
| 788 | Numerical Analysis | 7 | 498 | 1628 | 695 |
| 788 | Agriculture | 13 | 498 | 1039 | 807 |
| 790 | Organ transplantation | 14 | 491 | 121 | 64 |
| 790 | optical instruments | 23 | 491 | 89 | 128 |
| 792 | Multiple sclerosis | 14 | 486 | 172 | 67 |
| 793 | Freeze-Drying | 20 | 482 | 41 | 66 |
| 793 | Hypothermia | 20 | 482 | 41 | 66 |
| 793 | Freeze Drying | 20 | 482 | 41 | 66 |
| 793 | energy development | 2 | 482 | 1176 | 405 |
| 797 | China | 24 | 471 | 921 | 955 |
| 798 | Pediatric Rheumatology | 35 | 470 | 8 | 22 |
| 798 | Radiotherapy | 23 | 470 | 78 | 50 |
| 800 | Hydrology | 11 | 468 | 1379 | 1066 |
| 800 | Social Issues | 23 | 468 | 30 | 67 |
| 800 | rural health | 17 | 468 | 39 | 39 |
| 803 | Biomarkers | 19 | 455 | 36 | 38 |
| 804 | Climatology | 13 | 454 | 809 | 831 |
| 804 | Pediatric Endocrinology | 27 | 454 | 21 | 20 |
| 804 | magnetic resonance | 15 | 454 | 134 | 60 |
| 807 | Artificial Organs | 34 | 449 | 90 | 154 |
| 808 | breastfeeding | 16 | 448 | 106 | 96 |
| 809 | Telemedicine | 15 | 447 | 69 | 83 |
| 809 | Risk | 10 | 447 | 242 | 215 |
| 811 | Marine Pollution | 7 | 445 | 757 | 561 |
| 812 | Family Therapy | 15 | 441 | 243 | 201 |
| 812 | X-rays | 15 | 441 | 156 | 91 |
| 812 | disabilities | 16 | 441 | 214 | 201 |
| 815 | Molecular recognition | 14 | 438 | 18 | 25 |
| 815 | morbidity | 3 | 438 | 6 | 15 |
| 815 | mortality | 3 | 438 | 59 | 17 |
| 818 | Palliative Care | 22 | 437 | 213 | 250 |
| 819 | Biofilms | 5 | 434 | 50 | 18 |
| 820 | cilia | 6 | 432 | 5 | 2 |
| 821 | Nanobiotechnology | 5 | 424 | 254 | 184 |
| 822 | Public opinion | 11 | 420 | 162 | 129 |
| 823 | Geophysics | 12 | 419 | 1948 | 1783 |
| 823 | Risk Management | 11 | 419 | 256 | 202 |
| 825 | Structural biology | 10 | 418 | 4 | 7 |
| 826 | prions | 15 | 417 | 6 | 6 |
| 827 | sleep-wake cycle | 30 | 416 | 4 | 6 |
| 828 | Probability | 10 | 415 | 254 | 208 |
| 828 | Financial management | 9 | 415 | 206 | 212 |
| 828 | Familial diseases | 10 | 415 | 64 | 38 |
| 831 | Ultrasound | 14 | 412 | 276 | 248 |
| 832 | Information Theory | 7 | 411 | 978 | 581 |
| 832 | Detectors | 5 | 411 | 1309 | 522 |
| 834 | psychophysics | 11 | 408 | 124 | 70 |
| 834 | Societies | 19 | 408 | 28 | 12 |
| 836 | Sexuality | 8 | 407 | 118 | 46 |
| 837 | homosexuality | 7 | 406 | 205 | 97 |
| 838 | NMR | 11 | 405 | 192 | 67 |
| 839 | School Psychology | 9 | 402 | 194 | 167 |
| 840 | Precision medicine | 26 | 398 | 13 | 33 |
| 840 | Mutagenesis | 21 | 398 | 38 | 79 |
| 842 | Psychiatric Nursing | 15 | 394 | 197 | 135 |
| 843 | Forensic Psychology | 12 | 385 | 115 | 81 |
| 844 | Green Chemistry | 6 | 384 | 1306 | 1089 |
| 844 | Quantum Chemistry | 21 | 384 | 212 | 199 |
| 846 | Nanomedicine | 15 | 383 | 10 | 43 |
| 846 | Conservation Biology | 5 | 383 | 889 | 587 |
| 848 | Nonverbal Communication | 4 | 381 | 147 | 75 |
| 849 | Liposomes | 18 | 378 | 108 | 218 |
| 850 | Ferroelectricity | 14 | 377 | 449 | 282 |
| 851 | Information Retrieval | 11 | 376 | 165 | 205 |
| 851 | Human evolution | 13 | 376 | 155 | 224 |
| 853 | Serology | 30 | 372 | 38 | 122 |
| 854 | Lymphoma | 16 | 369 | 75 | 51 |
| 855 | Mobile genetic elements | 18 | 364 | 3 | 11 |
| 855 | Exercise therapy | 3 | 364 | 396 | 51 |
| 857 | Tissue Engineering | 10 | 362 | 78 | 106 |
| 858 | Genetic translocation | 10 | 360 | 41 | 52 |
| 858 | plasmids | 10 | 360 | 41 | 52 |
| 860 | Human-Computer Interaction | 15 | 357 | 553 | 656 |
| 860 | government | 7 | 357 | 388 | 213 |
| 862 | Functional Analysis | 3 | 353 | 1267 | 426 |
| 863 | child mental health | 15 | 352 | 139 | 148 |
| 864 | Biochemical Genetics | 26 | 342 | 26 | 46 |
| 865 | Pediatric Dermatology | 23 | 341 | 83 | 91 |
| 866 | cell adhesion molecules | 15 | 340 | 107 | 219 |
| 867 | Pacific Islands | 25 | 339 | 24 | 33 |
| 867 | school psychologists | 5 | 339 | 122 | 105 |
| 869 | Atherosclerosis | 10 | 338 | 45 | 50 |
| 869 | actuators | 9 | 338 | 1306 | 1258 |
| 869 | transducers | 9 | 338 | 1306 | 1258 |
| 872 | Philosophy | 12 | 334 | 876 | 376 |
| 872 | Criminal psychology | 14 | 334 | 287 | 315 |
| 874 | body temperature | 9 | 331 | 167 | 115 |
| 875 | Surface-Active Agents | 6 | 330 | 734 | 567 |
| 875 | Surface properties | 6 | 330 | 802 | 636 |
| 877 | Water Microbiology | 9 | 326 | 148 | 143 |
| 878 | Environmental carcinogens | 3 | 323 | 23 | 14 |
| 878 | drug control | 12 | 323 | 123 | 135 |
| 880 | Body language | 3 | 321 | 94 | 55 |
| 880 | urban health | 11 | 321 | 85 | 115 |
| 882 | Sound | 14 | 316 | 401 | 395 |
| 882 | Radiation dosimetry | 17 | 316 | 110 | 60 |
| 884 | Occupational Therapy | 40 | 309 | 142 | 216 |
| 885 | Special Education | 10 | 308 | 346 | 240 |
| 885 | Pediatric Nursing | 16 | 308 | 96 | 108 |
| 885 | Orthopedic Surgery | 12 | 308 | 337 | 369 |
| 888 | particles | 2 | 306 | 1273 | 346 |
| 889 | Experimental Design | 16 | 303 | 76 | 149 |
| 890 | Oral Medicine | 10 | 301 | 279 | 138 |
| 890 | Machine Learning | 4 | 301 | 301 | 172 |
| 892 | Amyloidosis | 11 | 295 | 47 | 57 |
| 893 | Ergonomics | 23 | 294 | 282 | 393 |
| 894 | Herbal medicine | 9 | 292 | 261 | 345 |
| 895 | Screening | 15 | 290 | 21 | 39 |
| 896 | Imagination | 11 | 289 | 12 | 5 |
| 897 | Industrial Engineering | 3 | 284 | 1996 | 963 |
| 897 | Invertebrates | 20 | 284 | 123 | 235 |
| 899 | Catalysis | 9 | 282 | 2233 | 2313 |
| 900 | Multiple Myeloma | 11 | 279 | 125 | 67 |
| 901 | Applied Mathematics | 2 | 277 | 1357 | 60 |
| 902 | Humanities | 13 | 276 | 733 | 372 |
| 903 | women | 15 | 274 | 231 | 174 |
| 904 | Robotics | 5 | 270 | 1400 | 918 |
| 904 | Radiation Oncology | 7 | 270 | 198 | 152 |
| 904 | Sexual health | 32 | 270 | 109 | 314 |
| 904 | ethnic groups | 6 | 270 | 204 | 121 |
| 908 | alcohol | 14 | 268 | 10 | 10 |
| 909 | Fertilization | 6 | 266 | 32 | 22 |
| 909 | gametes | 6 | 266 | 32 | 22 |
| 911 | Emergency Medical Services | 4 | 265 | 650 | 241 |
| 912 | weather | 9 | 264 | 227 | 263 |
| 913 | Veterinary Immunology | 12 | 263 | 139 | 167 |
| 913 | Phytotherapy | 9 | 263 | 366 | 399 |
| 915 | Radio frequency | 11 | 262 | 244 | 236 |
| 916 | Environmental Management | 6 | 261 | 2093 | 2152 |
| 916 | Lymphatic system | 9 | 261 | 29 | 22 |
| 918 | Genetic markers | 13 | 260 | 21 | 44 |
| 919 | Phonetics | 7 | 259 | 181 | 143 |
| 920 | Lipid bilayers | 15 | 258 | 109 | 262 |
| 921 | Peroxisomes | 6 | 252 | 12 | 15 |
| 922 | Energy Storage | 2 | 250 | 1546 | 765 |
| 923 | Psychoanalysis | 9 | 249 | 164 | 85 |
| 924 | Metabolic disorders in children | 17 | 247 | 33 | 38 |
| 925 | Cell migration | 6 | 246 | 20 | 49 |
| 926 | Travel | 14 | 244 | 263 | 313 |
| 927 | Wireless Communication Systems | 6 | 241 | 1786 | 1252 |
| 928 | information | 28 | 236 | 1 | 7 |
| 928 | traffic safety | 12 | 236 | 76 | 83 |
| 928 | Immune response | 18 | 236 | 1 | 2 |
| 931 | Political Science | 9 | 235 | 1060 | 728 |
| 931 | Stress | 13 | 235 | 28 | 99 |
| 933 | bioclimatology | 8 | 234 | 445 | 453 |
| 933 | Climate | 8 | 234 | 283 | 333 |
| 935 | Transportation | 10 | 232 | 872 | 963 |
| 936 | weight loss | 20 | 231 | 17 | 43 |
| 937 | kidney | 2 | 228 | 87 | 50 |
| 938 | water resources | 4 | 225 | 299 | 142 |
| 939 | Multivariate Analysis | 8 | 224 | 246 | 227 |
| 939 | Culture | 3 | 224 | 1105 | 347 |
| 941 | Ceramics | 2 | 222 | 1883 | 815 |
| 941 | Glass | 2 | 222 | 1375 | 704 |
| 941 | pottery | 2 | 222 | 1330 | 695 |
| 944 | Semantics | 12 | 218 | 48 | 83 |
| 945 | Geography | 4 | 214 | 2014 | 1341 |
| 946 | Gene library | 1 | 213 | 182 | 50 |
| 947 | Roads | 8 | 212 | 463 | 331 |
| 948 | cell proliferation | 17 | 211 | 54 | 161 |
| 949 | elder abuse | 9 | 209 | 121 | 168 |
| 950 | sex crimes | 10 | 208 | 271 | 318 |
| 951 | Cell surface receptors | 9 | 207 | 15 | 15 |
| 952 | Mobile Computing | 2 | 206 | 1607 | 639 |
| 952 | Biodegradation | 8 | 206 | 315 | 483 |
| 954 | Immunohematology | 29 | 205 | 7 | 10 |
| 954 | Foodborne diseases | 6 | 205 | 133 | 115 |
| 956 | Mechatronics | 5 | 204 | 689 | 547 |
| 957 | Immunohistochemistry | 3 | 203 | 177 | 45 |
| 958 | musculoskeletal system | 5 | 202 | 82 | 76 |
| 959 | Raman spectroscopy | 10 | 201 | 332 | 422 |
| 959 | Entropy | 10 | 201 | 486 | 412 |
| 961 | Astrophysics | 7 | 200 | 2082 | 1942 |
| 962 | Structural Engineering | 5 | 196 | 1328 | 982 |
| 962 | Developmental Toxicology | 5 | 196 | 36 | 40 |
| 962 | Disability Law | 27 | 196 | 6 | 60 |
| 962 | teratogens | 5 | 196 | 36 | 40 |
| 966 | hospice care | 12 | 195 | 183 | 216 |
| 967 | Sociobiology | 15 | 194 | 58 | 124 |
| 967 | family violence | 9 | 194 | 201 | 279 |
| 967 | Soviet Union | 8 | 194 | 336 | 135 |
| 970 | Structural Equation Modeling | 1 | 193 | 207 | 94 |
| 971 | world | 8 | 192 | 357 | 643 |
| 972 | Microwaves | 8 | 190 | 923 | 787 |
| 973 | Vocational Education | 3 | 189 | 477 | 228 |
| 973 | Health Risk Assessment | 13 | 189 | 82 | 153 |
| 975 | Sustainable Engineering | 4 | 188 | 1469 | 1247 |
| 975 | Energy Policy | 2 | 188 | 3053 | 2303 |
| 975 | Adipose tissue | 11 | 188 | 2 | 18 |
| 975 | energy resources | 2 | 188 | 1608 | 1370 |
| 979 | Law | 6 | 187 | 1111 | 369 |
| 979 | Pharmacy management | 4 | 187 | 217 | 101 |
| 981 | Computational Intelligence | 2 | 186 | 1417 | 463 |
| 981 | Exercise | 11 | 186 | 654 | 742 |
| 983 | Risk assessment | 9 | 185 | 222 | 239 |
| 983 | orphan drugs | 8 | 185 | 8 | 2 |
| 985 | Cerebrospinal fluid | 10 | 184 | 27 | 76 |
| 986 | Hematopoiesis | 9 | 178 | 7 | 22 |
| 986 | Telecommunication | 8 | 178 | 1772 | 1737 |
| 988 | Economics | 6 | 177 | 3079 | 2325 |
| 988 | Intelligence | 4 | 177 | 211 | 198 |
| 988 | Ion channels | 13 | 177 | 8 | 43 |
| 991 | Carbohydrate | 5 | 174 | 9 | 54 |
| 992 | pain management | 9 | 173 | 295 | 378 |
| 993 | Bilingualism | 2 | 172 | 239 | 140 |
| 993 | Hypertension in pregnancy | 7 | 172 | 63 | 54 |
| 993 | Gastrointestinal diseases | 9 | 172 | 322 | 376 |
| 996 | Alkaloids | 5 | 171 | 4 | 5 |
| 997 | Veterinary Epidemiology | 1 | 170 | 104 | 37 |
| 998 | Nanochemistry | 2 | 169 | 1584 | 727 |
| 998 | Synchrotron Radiation | 2 | 169 | 507 | 199 |
| 1000 | Systems Analysis | 12 | 167 | 436 | 627 |