| 1 | Science | 2,012 | 319.4K | 162 | 77 |
| 2 | Biology | 1,929 | 247.4K | 166 | 109 |
| 3 | Medicine | 2,553 | 239.3K | 120 | 57 |
| 4 | Biochemistry | 3,016 | 237.8K | 79 | 40 |
| 5 | Physics | 619 | 164.7K | 729 | 210 |
| 6 | Cytology | 1,099 | 154.6K | 68 | 60 |
| 7 | Neurology | 1,962 | 152.1K | 74 | 68 |
| 8 | Molecular Biology | 1,654 | 143.1K | 127 | 84 |
| 9 | Natural history | 320 | 142.3K | 199 | 98 |
| 10 | Cell Biology | 956 | 141.9K | 63 | 59 |
| 11 | Virology | 786 | 106.9K | 49 | 61 |
| 12 | Microbiology | 963 | 97.9K | 166 | 75 |
| 13 | Psychiatry | 931 | 86.4K | 80 | 41 |
| 14 | Immunology | 1,230 | 84.5K | 46 | 53 |
| 15 | Genetics | 643 | 72.8K | 96 | 62 |
| 16 | Surgery | 308 | 68.5K | 64 | 25 |
| 17 | Research | 1,246 | 65.5K | 184 | 117 |
| 18 | Biophysics | 1,714 | 61.1K | 45 | 38 |
| 19 | Human genetics | 288 | 61.0K | 102 | 104 |
| 20 | Neurophysiology | 618 | 54.6K | 67 | 56 |
| 21 | Hematology | 1,477 | 50.0K | 47 | 51 |
| 22 | Cardiovascular system | 631 | 48.4K | 19 | 22 |
| 23 | Pharmacology | 759 | 46.0K | 153 | 53 |
| 24 | Cancer | 652 | 42.2K | 99 | 78 |
| 25 | Immunity | 305 | 37.5K | 62 | 68 |
| 26 | Medical genetics | 600 | 37.1K | 62 | 71 |
| 27 | Developmental Biology | 354 | 37.0K | 79 | 53 |
| 28 | Physiology | 491 | 36.9K | 153 | 76 |
| 29 | Medical Oncology | 907 | 35.2K | 23 | 18 |
| 30 | Hypertension | 426 | 35.1K | 27 | 25 |
| 31 | Radiobiology | 900 | 34.6K | 19 | 15 |
| 32 | Mental Disorders | 311 | 34.5K | 134 | 52 |
| 33 | viruses | 366 | 32.1K | 35 | 30 |
| 34 | Neurons | 175 | 31.3K | 26 | 33 |
| 35 | Cytogenetics | 187 | 30.7K | 59 | 30 |
| 36 | Urology | 742 | 29.8K | 29 | 29 |
| 37 | Geriatrics | 544 | 29.7K | 63 | 30 |
| 38 | Psychology | 423 | 29.7K | 240 | 128 |
| 39 | Psychophysiology | 422 | 29.1K | 118 | 76 |
| 40 | Endocrinology | 421 | 28.9K | 127 | 117 |
| 41 | Chemistry | 329 | 26.2K | 1199 | 732 |
| 42 | Genetic regulation | 114 | 25.9K | 55 | 26 |
| 43 | Psychopharmacology | 313 | 25.7K | 43 | 30 |
| 44 | Pediatrics | 445 | 25.2K | 95 | 94 |
| 45 | Crystallography | 15 | 24.2K | 903 | 22 |
| 46 | X-ray crystallography | 11 | 23.9K | 333 | 13 |
| 47 | Toxicology | 419 | 23.3K | 151 | 67 |
| 48 | Metabolic diseases | 362 | 23.2K | 79 | 95 |
| 49 | Obstetrics | 472 | 22.9K | 69 | 29 |
| 50 | Developmental Genetics | 97 | 22.7K | 48 | 26 |
| 51 | Cell differentiation | 196 | 22.7K | 85 | 64 |
| 52 | Gene expression regulation | 101 | 22.5K | 54 | 25 |
| 53 | Clinical Psychology | 138 | 22.3K | 99 | 27 |
| 54 | Medical Physics | 1,002 | 21.9K | 9 | 15 |
| 55 | Epidemiology | 277 | 21.8K | 221 | 100 |
| 56 | Brain | 443 | 21.6K | 66 | 69 |
| 57 | viral genetics | 73 | 20.8K | 31 | 24 |
| 58 | Psychosomatic Medicine | 178 | 20.5K | 9 | 3 |
| 59 | Embryology | 176 | 19.5K | 105 | 54 |
| 60 | Liver diseases | 150 | 19.0K | 101 | 63 |
| 61 | Nervous system | 184 | 18.5K | 143 | 81 |
| 62 | Neurochemistry | 348 | 18.2K | 70 | 56 |
| 63 | Anatomy | 166 | 18.2K | 114 | 53 |
| 64 | Analytical Biochemistry | 93 | 17.7K | 75 | 9 |
| 65 | Aging | 284 | 17.6K | 130 | 59 |
| 66 | Oncology | 241 | 17.5K | 69 | 89 |
| 67 | Neurobiology | 228 | 16.6K | 72 | 70 |
| 68 | Medical Microbiology | 153 | 16.5K | 153 | 64 |
| 69 | Growth | 120 | 16.5K | 104 | 65 |
| 70 | Metabolism | 219 | 15.2K | 220 | 192 |
| 71 | Anxiety Disorders | 46 | 14.4K | 57 | 6 |
| 71 | Anxiety | 46 | 14.4K | 56 | 6 |
| 73 | Public Health | 233 | 14.4K | 487 | 296 |
| 74 | cell physiology | 158 | 14.4K | 68 | 43 |
| 75 | arthritis | 165 | 14.3K | 64 | 43 |
| 76 | Mental illness | 182 | 14.2K | 113 | 82 |
| 77 | Host-parasite interactions | 153 | 14.0K | 40 | 44 |
| 78 | Diagnostic microbiology | 123 | 13.9K | 58 | 31 |
| 79 | pain | 161 | 13.9K | 63 | 45 |
| 80 | Transplantation | 252 | 13.3K | 45 | 45 |
| 81 | Statistics | 91 | 13.2K | 406 | 88 |
| 82 | Allergy | 106 | 13.2K | 84 | 81 |
| 83 | Pathology | 221 | 12.9K | 132 | 97 |
| 84 | Biometrics | 85 | 12.8K | 99 | 25 |
| 85 | Depression | 32 | 12.5K | 39 | 4 |
| 86 | Environment | 177 | 12.4K | 493 | 506 |
| 87 | Orthopedics | 240 | 12.4K | 36 | 30 |
| 88 | Dermatology | 238 | 12.2K | 89 | 41 |
| 89 | Immune system | 79 | 12.1K | 89 | 95 |
| 90 | Immunotherapy | 132 | 12.1K | 91 | 65 |
| 91 | free radicals | 166 | 12.0K | 32 | 23 |
| 92 | Pharmaceutical Chemistry | 201 | 11.8K | 330 | 190 |
| 93 | Gerontology | 213 | 11.8K | 108 | 23 |
| 94 | Nutrition | 211 | 11.4K | 330 | 240 |
| 95 | Homeostasis | 41 | 11.2K | 41 | 32 |
| 95 | Cell metabolism | 41 | 11.2K | 57 | 32 |
| 97 | Behavior | 200 | 11.0K | 221 | 197 |
| 98 | Ophthalmology | 211 | 10.5K | 93 | 65 |
| 99 | Therapeutics | 155 | 10.4K | 94 | 64 |
| 100 | Virulence | 125 | 10.3K | 44 | 44 |
| 101 | United States | 247 | 10.2K | 382 | 283 |
| 102 | Obesity | 153 | 10.2K | 146 | 87 |
| 103 | Biotechnology | 89 | 10.0K | 1283 | 616 |
| 104 | Bioengineering | 66 | 9.9K | 930 | 403 |
| 105 | Environmental Health | 168 | 9.8K | 535 | 417 |
| 106 | Diabetes | 110 | 9.8K | 317 | 217 |
| 107 | Diabetes mellitus | 102 | 9.6K | 299 | 204 |
| 108 | drug therapy | 250 | 9.6K | 91 | 87 |
| 109 | gene mapping | 141 | 9.6K | 104 | 107 |
| 110 | Pediatric Neurology | 88 | 9.3K | 87 | 91 |
| 111 | transport vesicles | 3 | 9.2K | 256 | 181 |
| 112 | Rheumatology | 108 | 9.0K | 72 | 41 |
| 113 | Neuropsychology | 163 | 9.0K | 150 | 100 |
| 114 | Child psychology | 76 | 8.8K | 234 | 115 |
| 115 | Critical Care | 110 | 8.2K | 149 | 148 |
| 116 | Critical Care Medicine | 108 | 8.2K | 151 | 147 |
| 117 | Biochemical Engineering | 34 | 8.2K | 1031 | 376 |
| 118 | Hospitals | 121 | 8.0K | 41 | 8 |
| 119 | Chronic diseases | 57 | 7.9K | 78 | 59 |
| 120 | Schizophrenia | 100 | 7.9K | 107 | 53 |
| 121 | psychotherapy | 73 | 7.9K | 168 | 74 |
| 122 | Clinical Chemistry | 157 | 7.8K | 212 | 176 |
| 123 | Sleep Disorders | 109 | 7.7K | 166 | 69 |
| 124 | proteins | 94 | 7.4K | 203 | 89 |
| 125 | Attention | 174 | 7.4K | 103 | 75 |
| 126 | Infection control | 95 | 7.3K | 16 | 2 |
| 127 | Sleep | 100 | 7.3K | 179 | 76 |
| 128 | human behavior | 106 | 7.0K | 248 | 230 |
| 129 | Bacteriology | 82 | 7.0K | 274 | 198 |
| 130 | Heart Failure | 170 | 6.9K | 8 | 10 |
| 131 | Health | 150 | 6.9K | 123 | 85 |
| 132 | Memory | 156 | 6.6K | 143 | 128 |
| 133 | Child | 212 | 6.6K | 121 | 99 |
| 134 | Stem cells | 93 | 6.6K | 141 | 58 |
| 135 | RNA | 61 | 6.5K | 24 | 7 |
| 136 | Membranes | 135 | 6.5K | 115 | 122 |
| 137 | Perception | 160 | 6.5K | 148 | 117 |
| 138 | Environmental Toxicology | 66 | 6.4K | 281 | 119 |
| 139 | Chromosome mapping | 111 | 6.4K | 111 | 100 |
| 140 | Respiration | 139 | 6.4K | 87 | 91 |
| 141 | Genetic engineering | 62 | 6.3K | 278 | 98 |
| 142 | Molecular Microbiology | 65 | 6.2K | 92 | 74 |
| 143 | Visual Perception | 149 | 6.1K | 127 | 90 |
| 144 | Radiology | 322 | 6.1K | 18 | 24 |
| 145 | protein | 61 | 6.0K | 144 | 63 |
| 146 | Oncogenes | 74 | 6.0K | 137 | 144 |
| 147 | Electrophysiology | 307 | 6.0K | 5 | 8 |
| 148 | mycoses | 63 | 5.9K | 35 | 47 |
| 149 | Pharmacogenetics | 73 | 5.8K | 62 | 30 |
| 150 | gene therapy | 84 | 5.8K | 70 | 48 |
| 151 | behavioral medicine | 142 | 5.8K | 44 | 77 |
| 152 | Geriatric Psychiatry | 124 | 5.7K | 32 | 24 |
| 153 | Health promotion | 72 | 5.7K | 182 | 90 |
| 154 | Genetic therapy | 113 | 5.7K | 64 | 61 |
| 155 | Muscles | 139 | 5.6K | 11 | 17 |
| 156 | Biomechanics | 70 | 5.5K | 149 | 77 |
| 157 | nucleic acids | 105 | 5.5K | 198 | 325 |
| 158 | drug development | 95 | 5.4K | 48 | 88 |
| 159 | Lipids | 53 | 5.4K | 149 | 52 |
| 160 | preventive medicine | 60 | 5.4K | 185 | 91 |
| 161 | Genomics | 135 | 5.4K | 292 | 290 |
| 162 | Diet | 60 | 5.3K | 417 | 252 |
| 163 | Medical innovations | 76 | 5.3K | 62 | 98 |
| 164 | Molecular structure | 60 | 5.2K | 357 | 171 |
| 165 | Biomedical Engineering | 125 | 5.2K | 611 | 469 |
| 166 | Sports Medicine | 115 | 5.2K | 298 | 166 |
| 167 | Signal Transduction | 78 | 5.2K | 84 | 69 |
| 168 | medical education | 89 | 5.1K | 244 | 104 |
| 169 | Infertility | 158 | 5.1K | 60 | 73 |
| 170 | Neuromuscular diseases | 130 | 5.1K | 9 | 10 |
| 171 | fertility | 158 | 5.0K | 61 | 76 |
| 172 | Chemotherapy | 137 | 5.0K | 40 | 42 |
| 173 | Bacterial infections | 50 | 4.9K | 72 | 64 |
| 174 | Radiography | 222 | 4.9K | 19 | 34 |
| 175 | enzymes | 103 | 4.9K | 72 | 48 |
| 176 | Spine | 79 | 4.8K | 47 | 40 |
| 177 | Cognitive neuroscience | 39 | 4.8K | 220 | 130 |
| 178 | Immunopathology | 142 | 4.8K | 48 | 60 |
| 179 | genome | 43 | 4.8K | 323 | 280 |
| 180 | Post-traumatic stress disorder | 83 | 4.7K | 36 | 27 |
| 181 | complementary therapies | 109 | 4.7K | 101 | 34 |
| 182 | Lung Transplantation | 256 | 4.6K | 27 | 35 |
| 182 | Heart transplantation | 256 | 4.6K | 27 | 35 |
| 184 | behavior therapy | 96 | 4.5K | 71 | 55 |
| 185 | Biocompatible Materials | 56 | 4.5K | 1043 | 728 |
| 186 | Medical Laboratory Science | 87 | 4.4K | 134 | 110 |
| 187 | cloning | 26 | 4.4K | 108 | 27 |
| 188 | Alzheimer's disease | 107 | 4.3K | 195 | 109 |
| 189 | Diagnostic Imaging | 114 | 4.3K | 142 | 137 |
| 190 | Neuropsychiatry | 93 | 4.2K | 41 | 30 |
| 191 | Clinical Immunology | 108 | 4.2K | 68 | 39 |
| 192 | Mental Health Services | 99 | 4.1K | 82 | 43 |
| 193 | Mental Health | 98 | 4.1K | 110 | 63 |
| 194 | Orthopedic Surgery | 70 | 4.1K | 55 | 27 |
| 195 | older people | 140 | 4.0K | 125 | 54 |
| 196 | Clinical Biochemistry | 192 | 4.0K | 24 | 46 |
| 197 | biological evolution | 59 | 3.9K | 399 | 400 |
| 198 | rehabilitation | 74 | 3.9K | 292 | 186 |
| 199 | Education | 20 | 3.8K | 1779 | 296 |
| 200 | Child Development | 68 | 3.8K | 338 | 254 |
| 201 | Hormones | 50 | 3.8K | 204 | 92 |
| 202 | Adolescent | 107 | 3.7K | 206 | 160 |
| 203 | United Kingdom | 73 | 3.7K | 230 | 198 |
| 204 | Magnetic Resonance Imaging | 42 | 3.7K | 64 | 21 |
| 205 | Histology | 50 | 3.6K | 358 | 205 |
| 206 | Vaccines | 98 | 3.6K | 174 | 162 |
| 207 | Computational Biology | 57 | 3.6K | 507 | 431 |
| 208 | Medical Imaging | 35 | 3.5K | 56 | 17 |
| 209 | Materials | 14 | 3.5K | 3801 | 1383 |
| 210 | Dementia | 98 | 3.4K | 200 | 111 |
| 211 | Thrombosis | 71 | 3.4K | 104 | 87 |
| 212 | Cardiovascular diseases | 114 | 3.4K | 116 | 110 |
| 213 | Cognitive Science | 14 | 3.3K | 663 | 164 |
| 214 | Physical Therapy | 89 | 3.3K | 125 | 143 |
| 215 | Drug design | 25 | 3.2K | 445 | 84 |
| 216 | Nuclear Medicine | 100 | 3.2K | 82 | 99 |
| 217 | Mycology | 63 | 3.2K | 226 | 156 |
| 218 | Materials Science | 12 | 3.2K | 3182 | 989 |
| 219 | Health Education | 48 | 3.2K | 387 | 166 |
| 220 | scientific societies | 72 | 3.1K | 38 | 25 |
| 221 | Learning | 42 | 3.1K | 255 | 162 |
| 222 | alcoholism | 89 | 3.1K | 191 | 191 |
| 223 | Smoking | 74 | 3.1K | 89 | 70 |
| 224 | cell interaction | 48 | 3.0K | 97 | 36 |
| 225 | Nanotechnology | 31 | 3.0K | 2094 | 1261 |
| 226 | cardiac catheterization | 117 | 3.0K | 28 | 20 |
| 227 | Radioisotopes | 93 | 2.9K | 63 | 24 |
| 228 | DNA polymerases | 27 | 2.9K | 83 | 114 |
| 229 | Social Psychology | 46 | 2.8K | 504 | 378 |
| 230 | Microorganisms | 7 | 2.8K | 921 | 189 |
| 231 | General Surgery | 149 | 2.8K | 24 | 31 |
| 232 | vascular diseases | 45 | 2.8K | 96 | 79 |
| 233 | Molecular Pharmacology | 33 | 2.8K | 109 | 57 |
| 234 | Substance Abuse | 83 | 2.7K | 181 | 150 |
| 235 | Research Design | 95 | 2.7K | 79 | 144 |
| 236 | Reproduction | 84 | 2.7K | 369 | 368 |
| 237 | Health Policy | 47 | 2.7K | 497 | 262 |
| 238 | Religion and Psychology | 70 | 2.7K | 7 | 1 |
| 239 | Anthropology | 39 | 2.6K | 420 | 130 |
| 240 | Sociology | 34 | 2.6K | 847 | 407 |
| 241 | Human evolution | 32 | 2.6K | 79 | 51 |
| 242 | Health insurance | 26 | 2.6K | 100 | 45 |
| 243 | Community Psychiatry | 45 | 2.5K | 142 | 94 |
| 244 | Decision making | 11 | 2.5K | 783 | 134 |
| 245 | Quality of life | 43 | 2.5K | 191 | 146 |
| 246 | Hemodynamics | 30 | 2.4K | 142 | 100 |
| 247 | Cerebral cortex | 19 | 2.4K | 369 | 165 |
| 248 | Bioinformatics | 39 | 2.4K | 502 | 457 |
| 248 | carcinogens | 69 | 2.4K | 74 | 108 |
| 250 | Sports | 40 | 2.3K | 557 | 285 |
| 251 | Neuroimmunology | 38 | 2.3K | 114 | 85 |
| 252 | Ecology | 39 | 2.3K | 2324 | 2008 |
| 253 | nuclear magnetic resonance | 74 | 2.2K | 125 | 126 |
| 254 | Leukemia | 69 | 2.2K | 197 | 305 |
| 255 | Chromosomes | 26 | 2.2K | 232 | 111 |
| 256 | Thorax | 74 | 2.1K | 42 | 56 |
| 257 | drug addiction | 60 | 2.1K | 185 | 204 |
| 258 | Clinical Trials | 79 | 2.1K | 28 | 40 |
| 259 | Molecular Genetics | 42 | 2.1K | 512 | 475 |
| 260 | Genetic Counseling | 41 | 2.1K | 32 | 6 |
| 261 | Antioxidants | 36 | 2.1K | 57 | 105 |
| 262 | infection | 41 | 2.1K | 366 | 294 |
| 263 | Animal Behavior | 33 | 2.0K | 581 | 477 |
| 264 | Medical Anthropology | 26 | 2.0K | 350 | 254 |
| 265 | Organic Chemistry | 79 | 2.0K | 639 | 728 |
| 266 | Electrocardiography | 184 | 2.0K | 1 | 3 |
| 267 | Antigens | 74 | 2.0K | 45 | 94 |
| 268 | Carcinogenesis | 49 | 2.0K | 120 | 139 |
| 268 | Developmental Disabilities | 24 | 2.0K | 303 | 187 |
| 270 | Infections | 37 | 1.9K | 223 | 237 |
| 271 | Health Services Administration | 23 | 1.9K | 276 | 101 |
| 272 | tomography | 78 | 1.9K | 9 | 10 |
| 273 | mutagens | 40 | 1.9K | 120 | 138 |
| 274 | Genetic disorders | 49 | 1.9K | 57 | 46 |
| 274 | blood transfusion | 93 | 1.9K | 57 | 70 |
| 276 | Meteorology | 17 | 1.9K | 1179 | 689 |
| 277 | histological techniques | 29 | 1.9K | 109 | 79 |
| 278 | Oxidation-reduction | 34 | 1.9K | 96 | 174 |
| 279 | Bioorganic chemistry | 71 | 1.9K | 497 | 637 |
| 280 | Microscopy | 74 | 1.8K | 139 | 141 |
| 281 | Adolescent Psychology | 28 | 1.8K | 197 | 105 |
| 282 | Autoimmunity | 27 | 1.8K | 164 | 124 |
| 283 | Emergency Medicine | 60 | 1.8K | 279 | 183 |
| 284 | Optics | 41 | 1.8K | 1723 | 923 |
| 285 | Audiology | 41 | 1.8K | 154 | 117 |
| 286 | Recombinant DNA | 32 | 1.8K | 324 | 200 |
| 287 | Molecular cloning | 30 | 1.8K | 316 | 185 |
| 287 | Genetic recombination | 30 | 1.8K | 305 | 182 |
| 287 | Women's health | 53 | 1.8K | 138 | 113 |
| 290 | Digestive system diseases | 61 | 1.8K | 103 | 95 |
| 291 | Antibodies | 51 | 1.7K | 38 | 65 |
| 292 | Reproductive toxicology | 25 | 1.7K | 79 | 41 |
| 293 | Environmental monitoring | 21 | 1.7K | 1748 | 1019 |
| 294 | Elderly | 94 | 1.7K | 139 | 54 |
| 295 | Alternative Medicine | 47 | 1.7K | 258 | 154 |
| 296 | Fungi | 27 | 1.7K | 283 | 214 |
| 297 | Hemophilia | 22 | 1.7K | 147 | 51 |
| 298 | Magnetic Resonance Spectroscopy | 61 | 1.7K | 169 | 171 |
| 299 | drugs | 72 | 1.7K | 258 | 345 |
| 300 | Cognition | 28 | 1.7K | 581 | 405 |
| 301 | Primary health care | 47 | 1.7K | 325 | 234 |
| 302 | personality | 29 | 1.6K | 449 | 401 |
| 303 | Cognitive Therapy | 35 | 1.6K | 82 | 46 |
| 304 | health behavior | 39 | 1.6K | 193 | 164 |
| 305 | Geriatric Oncology | 41 | 1.6K | 60 | 50 |
| 306 | Psychiatric hospitals | 31 | 1.6K | 65 | 34 |
| 307 | Cell death | 35 | 1.6K | 286 | 417 |
| 308 | Neurogenetics | 39 | 1.6K | 7 | 5 |
| 309 | environmental exposure | 48 | 1.5K | 256 | 291 |
| 310 | Ethology | 19 | 1.5K | 649 | 491 |
| 311 | Radiation | 53 | 1.5K | 368 | 318 |
| 312 | Pollution | 25 | 1.4K | 2498 | 2189 |
| 313 | Personality Assessment | 16 | 1.4K | 182 | 93 |
| 314 | child abuse | 23 | 1.4K | 231 | 151 |
| 315 | Psychoneuroimmunology | 34 | 1.4K | 105 | 143 |
| 316 | Palliative Care | 45 | 1.4K | 111 | 90 |
| 317 | Neuropharmacology | 27 | 1.4K | 61 | 49 |
| 318 | Immunopharmacology | 11 | 1.3K | 493 | 100 |
| 319 | Proteome | 27 | 1.3K | 296 | 316 |
| 320 | Zoology | 18 | 1.3K | 1338 | 524 |
| 321 | Autoimmune diseases | 27 | 1.3K | 108 | 93 |
| 322 | Teratology | 28 | 1.3K | 45 | 45 |
| 323 | Retina | 5 | 1.3K | 120 | 90 |
| 324 | environmental pollution | 18 | 1.3K | 2319 | 1628 |
| 325 | rare diseases | 17 | 1.3K | 215 | 80 |
| 326 | Radiotherapy | 97 | 1.3K | 14 | 20 |
| 327 | Adolescent Medicine | 26 | 1.2K | 150 | 246 |
| 328 | health services | 36 | 1.2K | 200 | 152 |
| 329 | Disease | 7 | 1.2K | 172 | 372 |
| 330 | Endocrine glands | 9 | 1.2K | 104 | 66 |
| 331 | Eating Disorders | 35 | 1.2K | 180 | 182 |
| 332 | Environmental Engineering | 16 | 1.2K | 2011 | 1258 |
| 333 | Drug delivery systems | 15 | 1.2K | 647 | 413 |
| 333 | collagen | 17 | 1.2K | 58 | 61 |
| 335 | mammals | 45 | 1.2K | 132 | 134 |
| 336 | Cardiac electrophysiology | 17 | 1.2K | 64 | 30 |
| 336 | arrhythmia | 17 | 1.2K | 64 | 30 |
| 338 | Histocompatibility Testing | 94 | 1.2K | 16 | 37 |
| 339 | North America | 44 | 1.2K | 120 | 82 |
| 340 | Extracellular matrix | 15 | 1.1K | 60 | 59 |
| 341 | counseling | 33 | 1.1K | 346 | 272 |
| 342 | Occupational Health | 43 | 1.1K | 162 | 164 |
| 343 | Metastasis | 8 | 1.1K | 64 | 40 |
| 344 | Cytoskeleton | 19 | 1.1K | 55 | 29 |
| 345 | eye | 4 | 1.1K | 186 | 109 |
| 346 | Immunochemistry | 39 | 1.1K | 144 | 141 |
| 347 | diseases | 3 | 1.1K | 392 | 421 |
| 348 | eugenics | 17 | 1.0K | 172 | 68 |
| 349 | Bone diseases | 15 | 1.0K | 126 | 169 |
| 350 | Otolaryngology | 36 | 1.0K | 118 | 118 |
| 350 | Evolution | 22 | 1.0K | 767 | 820 |
| 352 | Inflammation | 12 | 1.0K | 635 | 309 |
| 353 | Kidney diseases | 32 | 984 | 218 | 237 |
| 354 | Forensic Psychiatry | 16 | 977 | 195 | 53 |
| 355 | Flow cytometry | 19 | 967 | 64 | 36 |
| 356 | Sexual health | 39 | 964 | 128 | 129 |
| 357 | Feeding and Eating Disorders | 27 | 962 | 219 | 209 |
| 358 | Astrocytes | 7 | 947 | 359 | 178 |
| 359 | DNA methylation | 13 | 945 | 67 | 37 |
| 360 | biochemical markers | 21 | 938 | 149 | 52 |
| 361 | Nursing | 45 | 936 | 321 | 291 |
| 362 | Food | 26 | 931 | 1130 | 1048 |
| 363 | Hippocampus | 21 | 925 | 51 | 96 |
| 364 | Health Services Research | 34 | 922 | 405 | 446 |
| 365 | Family Therapy | 25 | 918 | 183 | 109 |
| 366 | Genetic epidemiology | 35 | 896 | 47 | 68 |
| 366 | heredity | 35 | 896 | 90 | 107 |
| 368 | Biomolecules | 8 | 891 | 220 | 116 |
| 369 | Hemostasis | 36 | 885 | 109 | 120 |
| 369 | behavior modification | 10 | 885 | 222 | 147 |
| 371 | Tropical Medicine | 33 | 884 | 420 | 367 |
| 372 | Social behavior | 12 | 883 | 604 | 369 |
| 373 | Population Genetics | 12 | 882 | 703 | 545 |
| 374 | Nephrology | 27 | 879 | 154 | 203 |
| 375 | Parenteral nutrition | 41 | 868 | 175 | 423 |
| 376 | Autoantibodies | 20 | 867 | 138 | 137 |
| 377 | epilepsy | 40 | 862 | 144 | 215 |
| 377 | Bipolar Disorder | 13 | 862 | 167 | 126 |
| 379 | China | 15 | 857 | 1453 | 650 |
| 380 | Biopharmaceutics | 24 | 856 | 286 | 275 |
| 380 | Nanostructures | 3 | 856 | 2663 | 802 |
| 382 | Analytical Chemistry | 18 | 855 | 2501 | 1914 |
| 383 | Pediatric Hematology | 36 | 854 | 29 | 16 |
| 384 | Light | 16 | 853 | 399 | 581 |
| 385 | Medical Technology | 24 | 848 | 475 | 384 |
| 386 | environmental protection | 10 | 845 | 2385 | 1284 |
| 387 | Asthma | 24 | 839 | 119 | 84 |
| 388 | Social Sciences | 23 | 837 | 1409 | 729 |
| 389 | nuclear magnetic resonance spectroscopy | 30 | 836 | 139 | 138 |
| 390 | Environmental Policy | 9 | 835 | 2243 | 1455 |
| 391 | Environmental Law | 8 | 829 | 733 | 534 |
| 392 | Bones | 13 | 827 | 500 | 352 |
| 393 | Lipid metabolism | 22 | 823 | 51 | 96 |
| 393 | Lipid | 22 | 823 | 52 | 96 |
| 395 | Communication | 13 | 821 | 1045 | 492 |
| 396 | Neurotoxicology | 24 | 816 | 68 | 99 |
| 397 | chronic disease | 27 | 810 | 55 | 72 |
| 398 | Patient education | 19 | 796 | 210 | 207 |
| 399 | Dietetics | 20 | 795 | 252 | 148 |
| 400 | industrial hygiene | 30 | 793 | 225 | 115 |
| 400 | brain mapping | 12 | 793 | 349 | 294 |
| 402 | Parasitic Diseases | 19 | 782 | 917 | 794 |
| 403 | Endocrine system | 41 | 781 | 115 | 19 |
| 404 | Molecular ecology | 9 | 778 | 752 | 608 |
| 405 | Botany | 16 | 771 | 2292 | 1933 |
| 406 | Systems Biology | 23 | 770 | 474 | 417 |
| 406 | Morphology | 12 | 770 | 382 | 133 |
| 408 | Photochemistry | 15 | 762 | 830 | 491 |
| 409 | Genetic markers | 7 | 757 | 88 | 4 |
| 410 | Long-Term Care | 20 | 742 | 142 | 209 |
| 410 | Long-term care facilities | 20 | 742 | 141 | 209 |
| 412 | Preoperative Care | 18 | 740 | 3 | 3 |
| 412 | perioperative care | 18 | 740 | 3 | 3 |
| 412 | Structure-activity relationship | 7 | 740 | 214 | 83 |
| 415 | Primates | 22 | 737 | 227 | 197 |
| 416 | cell movement | 11 | 732 | 76 | 49 |
| 417 | Evidence-Based Medicine | 38 | 726 | 186 | 184 |
| 418 | Neural circuitry | 4 | 719 | 1975 | 643 |
| 419 | Environmental pollutants | 17 | 715 | 987 | 871 |
| 420 | Genes | 27 | 707 | 252 | 281 |
| 421 | cell membrane | 15 | 693 | 286 | 241 |
| 422 | Molecular evolution | 16 | 673 | 802 | 760 |
| 423 | Neonatology | 16 | 663 | 184 | 128 |
| 424 | DNA repair | 20 | 653 | 62 | 77 |
| 425 | Telemedicine | 11 | 650 | 124 | 63 |
| 426 | Clinical Pharmacology | 21 | 643 | 571 | 536 |
| 427 | Geriatric Medicine | 24 | 641 | 10 | 14 |
| 428 | Medical Ethics | 35 | 627 | 210 | 206 |
| 428 | animals | 10 | 627 | 739 | 264 |
| 430 | cytokines | 11 | 621 | 709 | 506 |
| 430 | Plant cells | 4 | 621 | 1177 | 934 |
| 432 | Emotions | 11 | 620 | 277 | 253 |
| 433 | Artificial Organs | 49 | 616 | 69 | 127 |
| 434 | Neurosurgery | 31 | 609 | 307 | 491 |
| 435 | occupational diseases | 21 | 605 | 272 | 337 |
| 436 | Nitric oxide | 23 | 589 | 28 | 31 |
| 437 | feeding behavior | 20 | 587 | 238 | 270 |
| 438 | Psychiatric Epidemiology | 7 | 581 | 344 | 191 |
| 439 | Randomized Controlled Trials | 18 | 580 | 442 | 239 |
| 440 | Europe | 11 | 578 | 2137 | 1189 |
| 441 | violence | 19 | 573 | 313 | 326 |
| 442 | Criminal psychology | 14 | 572 | 346 | 254 |
| 443 | psychopathology | 12 | 571 | 137 | 151 |
| 444 | Communication in medicine | 9 | 568 | 300 | 148 |
| 445 | risk factors | 24 | 566 | 182 | 281 |
| 446 | Holistic Health | 15 | 564 | 73 | 47 |
| 447 | child mental health | 12 | 561 | 174 | 86 |
| 448 | Microcirculation | 11 | 559 | 172 | 114 |
| 449 | Vision | 10 | 555 | 390 | 324 |
| 450 | drug abuse | 14 | 554 | 266 | 174 |
| 451 | Proteomics | 10 | 547 | 650 | 523 |
| 452 | Immunogenetics | 38 | 528 | 101 | 274 |
| 453 | pollutants | 9 | 525 | 1258 | 922 |
| 454 | Molecular Imaging | 9 | 519 | 473 | 382 |
| 455 | Neurotransmitters | 15 | 513 | 215 | 147 |
| 455 | nanoscience | 9 | 513 | 2096 | 1730 |
| 457 | biological factors | 15 | 499 | 884 | 808 |
| 458 | Sarcopenia | 9 | 490 | 153 | 180 |
| 459 | Community Psychology | 13 | 487 | 225 | 271 |
| 460 | Comparative Physiology | 11 | 482 | 466 | 337 |
| 461 | Electronics | 15 | 480 | 2041 | 1381 |
| 462 | natural products | 18 | 479 | 688 | 626 |
| 462 | drug evaluation | 23 | 479 | 334 | 424 |
| 464 | Lymphoma | 44 | 477 | 107 | 48 |
| 465 | Blood vessels | 8 | 469 | 170 | 86 |
| 466 | Pediatric Dermatology | 25 | 467 | 95 | 91 |
| 467 | vitamins | 11 | 466 | 21 | 30 |
| 468 | Synapses | 9 | 465 | 143 | 121 |
| 469 | abnormalities | 11 | 464 | 65 | 71 |
| 470 | Allergies | 2 | 463 | 224 | 40 |
| 471 | Family | 18 | 458 | 355 | 352 |
| 471 | Social work | 20 | 458 | 520 | 407 |
| 473 | Parasitology | 16 | 451 | 1263 | 1133 |
| 474 | Personality Disorders | 9 | 450 | 131 | 113 |
| 475 | Student Health Services | 10 | 448 | 125 | 66 |
| 476 | Cognitive Behavioral Therapy | 20 | 447 | 33 | 61 |
| 477 | Developmental Neurobiology | 12 | 445 | 184 | 145 |
| 477 | human development | 6 | 445 | 597 | 362 |
| 479 | Educational Psychology | 8 | 436 | 940 | 629 |
| 480 | Geriatric Pharmacology | 12 | 431 | 92 | 76 |
| 481 | Occupational exposure | 13 | 424 | 28 | 8 |
| 482 | visualization | 58 | 421 | 187 | 278 |
| 483 | Pharmacy | 17 | 420 | 998 | 1079 |
| 483 | Public opinion | 9 | 420 | 197 | 125 |
| 485 | vitamin C | 12 | 416 | 104 | 161 |
| 485 | vitamin E | 12 | 416 | 104 | 161 |
| 487 | Industrial Safety | 15 | 415 | 434 | 394 |
| 488 | Microbial Ecology | 12 | 414 | 1393 | 1836 |
| 489 | Developmental Psychology | 5 | 412 | 930 | 605 |
| 490 | Steroids | 17 | 409 | 419 | 508 |
| 491 | Vaccination | 10 | 406 | 75 | 68 |
| 492 | toxicity testing | 8 | 405 | 408 | 276 |
| 493 | Healing | 11 | 399 | 15 | 15 |
| 494 | Child welfare | 18 | 389 | 380 | 406 |
| 494 | ethanol | 14 | 389 | 164 | 180 |
| 496 | Bioenergetics | 8 | 388 | 554 | 474 |
| 496 | Energy metabolism | 8 | 388 | 446 | 401 |
| 496 | Cardiac rehabilitation | 8 | 388 | 21 | 21 |
| 499 | Socialization | 5 | 385 | 391 | 268 |
| 500 | Economics | 3 | 384 | 4875 | 1950 |
| 501 | Neurovirology | 8 | 383 | 129 | 95 |
| 502 | Histochemistry | 12 | 382 | 580 | 483 |
| 503 | Paleontology | 10 | 377 | 884 | 590 |
| 503 | mental health policy | 8 | 377 | 114 | 74 |
| 505 | Enteral nutrition | 25 | 374 | 204 | 566 |
| 506 | Cell division | 6 | 370 | 384 | 222 |
| 507 | Food Microbiology | 7 | 369 | 938 | 884 |
| 507 | food technology | 7 | 369 | 2044 | 1520 |
| 509 | Multiple Myeloma | 41 | 367 | 116 | 60 |
| 510 | Engineering | 17 | 363 | 2262 | 1877 |
| 511 | Developmental Immunology | 8 | 361 | 479 | 355 |
| 512 | Pharmacognosy | 18 | 360 | 745 | 1146 |
| 513 | Nutrition physiology | 6 | 358 | 574 | 414 |
| 514 | Econometrics | 2 | 357 | 1860 | 640 |
| 514 | Development Economics | 2 | 357 | 703 | 183 |
| 514 | Welfare Economics | 2 | 357 | 612 | 210 |
| 514 | Microeconomics | 2 | 357 | 491 | 154 |
| 518 | role | 4 | 354 | 364 | 232 |
| 519 | Demography | 7 | 352 | 481 | 347 |
| 520 | Industrial Microbiology | 9 | 347 | 1266 | 1347 |
| 521 | Behavioral Genetics | 7 | 346 | 149 | 145 |
| 522 | Music | 5 | 345 | 804 | 220 |
| 522 | voice | 5 | 345 | 396 | 140 |
| 524 | Marriage | 9 | 344 | 251 | 186 |
| 524 | Marriage counseling | 9 | 344 | 143 | 131 |
| 526 | Electron Microscopy | 20 | 342 | 73 | 100 |
| 527 | Suicide | 10 | 341 | 264 | 248 |
| 528 | actuators | 4 | 336 | 2271 | 1435 |
| 528 | transducers | 4 | 336 | 2271 | 1435 |
| 530 | Epigenetics | 6 | 335 | 114 | 27 |
| 530 | Aerosols | 11 | 335 | 305 | 274 |
| 532 | Intellectual disability | 9 | 334 | 516 | 406 |
| 533 | Forensic Psychology | 6 | 331 | 290 | 108 |
| 533 | Yeast | 10 | 331 | 200 | 244 |
| 535 | Polymers | 11 | 330 | 3197 | 2800 |
| 536 | plant molecular biology | 1 | 328 | 2661 | 1337 |
| 536 | liver | 12 | 328 | 101 | 92 |
| 536 | Plants | 1 | 328 | 3690 | 1503 |
| 539 | Electrophoresis | 8 | 326 | 1226 | 930 |
| 540 | biological monitoring | 3 | 325 | 584 | 200 |
| 541 | gastrointestinal tract | 3 | 324 | 337 | 178 |
| 542 | Developing countries | 11 | 323 | 1365 | 1269 |
| 543 | Malaria | 9 | 322 | 460 | 392 |
| 543 | Physical fitness | 8 | 322 | 719 | 587 |
| 545 | School Psychology | 4 | 318 | 430 | 220 |
| 546 | Oxidative stress | 15 | 317 | 424 | 844 |
| 547 | anesthesia | 29 | 315 | 67 | 82 |
| 548 | Speech Disorders | 17 | 314 | 437 | 580 |
| 549 | Information Systems | 24 | 312 | 312 | 700 |
| 550 | Environmental Geochemistry | 1 | 306 | 1235 | 139 |
| 550 | Minerals | 1 | 306 | 1633 | 288 |
| 552 | Environmental Microbiology | 7 | 301 | 1028 | 1197 |
| 553 | Pancreatic diseases | 5 | 300 | 518 | 162 |
| 554 | mutation | 10 | 297 | 301 | 469 |
| 555 | Fluorescence spectroscopy | 11 | 295 | 89 | 90 |
| 555 | Molecular Spectroscopy | 11 | 295 | 1019 | 941 |
| 557 | Speech | 7 | 294 | 650 | 547 |
| 558 | Physicians | 56 | 293 | 9 | 11 |
| 559 | Bioethics | 17 | 288 | 306 | 332 |
| 560 | Chronobiology | 3 | 287 | 490 | 172 |
| 560 | Circadian rhythms | 3 | 287 | 331 | 152 |
| 560 | biological clocks | 3 | 287 | 490 | 172 |
| 560 | circadian rhythm | 3 | 287 | 490 | 172 |
| 560 | biological rhythms | 3 | 287 | 457 | 169 |
| 565 | Nanostructured Materials | 5 | 284 | 2935 | 2278 |
| 566 | calcification | 9 | 283 | 327 | 389 |
| 567 | Optical materials | 2 | 281 | 3357 | 1998 |
| 568 | Exercise | 10 | 279 | 783 | 660 |
| 569 | Atherosclerosis | 11 | 276 | 51 | 75 |
| 570 | disabilities | 4 | 275 | 757 | 374 |
| 571 | Bacteria | 4 | 274 | 359 | 352 |
| 572 | Synaptic Transmission | 4 | 273 | 517 | 317 |
| 573 | Jurisprudence | 7 | 272 | 706 | 415 |
| 574 | Data Mining | 10 | 270 | 885 | 1115 |
| 575 | Mathematics | 18 | 268 | 3474 | 2971 |
| 576 | gene transfer | 9 | 265 | 94 | 117 |
| 576 | genetic transformation | 9 | 265 | 94 | 117 |
| 578 | Social support | 13 | 264 | 35 | 54 |
| 578 | Social environment | 13 | 264 | 40 | 61 |
| 578 | language | 4 | 264 | 763 | 458 |
| 581 | Animal welfare | 7 | 262 | 183 | 129 |
| 582 | Psycholinguistics | 3 | 260 | 1079 | 657 |
| 582 | Neurolinguistics | 3 | 260 | 509 | 331 |
| 582 | Criminal behavior | 2 | 260 | 286 | 56 |
| 585 | ethnicity | 9 | 259 | 372 | 194 |
| 585 | health and race | 9 | 259 | 100 | 82 |
| 587 | Respiratory system | 9 | 258 | 353 | 435 |
| 588 | child sexual abuse | 6 | 253 | 59 | 24 |
| 589 | Colloids | 9 | 252 | 2734 | 2927 |
| 590 | Pharmaceutical Technology | 10 | 245 | 949 | 1075 |
| 591 | Emergency Medical Services | 7 | 244 | 576 | 333 |
| 591 | school psychologists | 2 | 244 | 280 | 141 |
| 593 | Neuroplasticity | 2 | 240 | 579 | 144 |
| 593 | neuronal plasticity | 2 | 240 | 484 | 127 |
| 595 | Computer Vision | 7 | 237 | 838 | 958 |
| 596 | Learning disabilities | 1 | 236 | 1565 | 446 |
| 597 | Consciousness | 3 | 235 | 548 | 273 |
| 598 | software | 7 | 233 | 623 | 660 |
| 598 | Growth factors | 4 | 233 | 244 | 314 |
| 598 | Appetite | 11 | 233 | 339 | 491 |
| 601 | Autism | 8 | 231 | 483 | 585 |
| 602 | Andrology | 12 | 228 | 316 | 420 |
| 602 | Physical Chemistry | 10 | 228 | 1549 | 1745 |
| 602 | Amyotrophic Lateral Sclerosis | 7 | 228 | 157 | 184 |
| 605 | Law | 6 | 227 | 1282 | 358 |
| 606 | Cardiovascular Pharmacology | 13 | 225 | 71 | 124 |
| 606 | pain management | 13 | 225 | 258 | 404 |
| 608 | Health Sciences | 1 | 223 | 21 | 4 |
| 609 | Image Processing | 9 | 222 | 1336 | 1447 |
| 610 | Occupational Therapy | 27 | 220 | 260 | 364 |
| 611 | Mass Spectrometry | 5 | 217 | 1210 | 901 |
| 611 | X-rays | 13 | 217 | 246 | 274 |
| 613 | Ergonomics | 11 | 216 | 595 | 560 |
| 613 | Bioinorganic chemistry | 13 | 216 | 778 | 986 |
| 615 | Radiation Protection | 6 | 215 | 538 | 188 |
| 615 | sports injuries | 19 | 215 | 118 | 215 |
| 617 | sexual behavior | 12 | 214 | 277 | 463 |
| 618 | Psychiatric Nursing | 7 | 212 | 446 | 294 |
| 618 | biopolymers | 4 | 212 | 1242 | 904 |
| 620 | glycoproteins | 9 | 208 | 238 | 405 |
| 620 | Glycoconjugates | 9 | 208 | 238 | 405 |
| 620 | glycolipids | 9 | 208 | 238 | 405 |
| 623 | hospice care | 14 | 205 | 185 | 244 |
| 624 | Cost control | 10 | 204 | 70 | 57 |
| 625 | radiation monitoring | 5 | 203 | 546 | 185 |
| 625 | Radiation dosimetry | 5 | 203 | 408 | 124 |
| 627 | embryonic development | 7 | 202 | 277 | 310 |
| 627 | ethnic groups | 8 | 202 | 168 | 151 |
| 627 | cross-cultural comparison | 10 | 202 | 213 | 230 |
| 630 | data collection | 6 | 201 | 834 | 968 |
| 631 | health workforce | 3 | 199 | 225 | 154 |
| 631 | Algae | 2 | 199 | 1039 | 613 |
| 631 | Seaweed | 2 | 199 | 808 | 513 |
| 634 | Pesticides | 6 | 198 | 492 | 352 |
| 635 | Genetic Research | 6 | 197 | 73 | 84 |
| 636 | Computational Chemistry | 2 | 196 | 1006 | 545 |
| 637 | Drug discovery | 6 | 195 | 149 | 168 |
| 638 | Functional Genomics | 7 | 194 | 160 | 314 |
| 639 | Organ transplantation | 19 | 193 | 129 | 200 |
| 640 | Surface Chemistry | 7 | 191 | 3099 | 3201 |
| 640 | weight loss | 7 | 191 | 88 | 63 |
| 642 | Photonics | 7 | 188 | 1340 | 1585 |
| 643 | Adipose tissue | 1 | 187 | 212 | 16 |
| 643 | Cytokine | 5 | 187 | 341 | 429 |
| 645 | Electroconvulsive therapy | 6 | 185 | 49 | 35 |
| 646 | Asia | 9 | 184 | 1853 | 1459 |
| 647 | locomotion | 5 | 183 | 628 | 541 |
| 647 | posture | 5 | 183 | 628 | 541 |
| 647 | gait | 5 | 183 | 628 | 541 |
| 647 | walking | 5 | 183 | 628 | 541 |
| 651 | Sociobiology | 4 | 182 | 223 | 134 |
| 651 | women | 7 | 182 | 533 | 285 |
| 653 | Cross-Cultural Studies | 6 | 179 | 445 | 367 |
| 653 | Technology | 7 | 179 | 3605 | 3229 |
| 655 | sex crimes | 8 | 178 | 365 | 405 |
| 656 | Australia | 6 | 176 | 1665 | 1225 |
| 657 | Radio | 5 | 175 | 720 | 401 |
| 658 | Paleoecology | 4 | 173 | 1049 | 925 |
| 659 | Pharmacogenomics | 4 | 172 | 277 | 279 |
| 660 | Public Policy | 10 | 171 | 1062 | 1498 |
| 660 | Religion | 12 | 171 | 530 | 224 |
| 660 | Coronary heart disease | 13 | 171 | 44 | 51 |
| 663 | Humanities | 9 | 169 | 1088 | 619 |
| 663 | Diagnosis | 15 | 169 | 170 | 341 |
| 665 | Erectile dysfunction | 9 | 168 | 107 | 160 |
| 665 | child behavior | 5 | 168 | 325 | 395 |
| 667 | Religion and Culture | 10 | 166 | 82 | 77 |
| 667 | synthesis | 5 | 166 | 960 | 497 |
| 669 | Radiation Oncology | 7 | 165 | 253 | 303 |
| 670 | Pediatric Rheumatology | 12 | 164 | 80 | 130 |
| 670 | Nanoparticles | 3 | 164 | 2233 | 1702 |
| 670 | System analysis | 13 | 164 | 1330 | 1800 |
| 670 | Oligosaccharide | 6 | 164 | 203 | 363 |
| 670 | Carbohydrates | 6 | 164 | 326 | 463 |
| 670 | Androgens | 7 | 164 | 149 | 247 |
| 676 | polymerization | 3 | 163 | 4404 | 3117 |
| 677 | Happiness | 4 | 162 | 339 | 299 |
| 678 | Computer Science | 9 | 160 | 1407 | 1218 |
| 678 | Developmental Toxicology | 3 | 160 | 75 | 60 |
| 678 | cell proliferation | 4 | 160 | 342 | 248 |
| 678 | teratogens | 3 | 160 | 75 | 60 |
| 682 | Paleoclimatology | 3 | 159 | 1246 | 1065 |
| 682 | Paleogeography | 3 | 159 | 1077 | 889 |
| 682 | prostaglandins | 6 | 159 | 367 | 392 |
| 682 | magnetic resonance | 8 | 159 | 325 | 299 |
| 686 | Epigenomics | 4 | 156 | 177 | 101 |
| 687 | Environmental Chemistry | 3 | 155 | 2681 | 2351 |
| 687 | epidemiologic methods | 3 | 155 | 192 | 62 |
| 689 | Cell communication | 3 | 154 | 1005 | 854 |
| 690 | Antiviral agents | 11 | 153 | 144 | 298 |
| 691 | biomedicine | 11 | 151 | 360 | 711 |
| 692 | Agricultural Ecology | 1 | 150 | 2280 | 1321 |
| 692 | Laser therapy | 4 | 150 | 415 | 186 |
| 692 | miniaturization | 4 | 150 | 1933 | 2063 |
| 692 | children | 4 | 150 | 524 | 460 |
| 696 | Criminal Law | 2 | 145 | 399 | 157 |
| 697 | Maternal health services | 7 | 144 | 257 | 353 |
| 698 | allied health | 2 | 142 | 374 | 190 |
| 699 | Protozoa | 12 | 141 | 158 | 404 |
| 700 | Evolutionary Psychology | 1 | 139 | 344 | 84 |
| 701 | Biostatistics | 1 | 137 | 479 | 26 |
| 702 | Cultural Studies | 9 | 135 | 30 | 54 |
| 702 | Culture | 9 | 135 | 612 | 530 |
| 702 | amino acids | 3 | 135 | 709 | 601 |
| 705 | Adult Education | 5 | 134 | 457 | 263 |
| 705 | Osteoporosis | 8 | 134 | 164 | 283 |
| 707 | management | 4 | 133 | 3539 | 3037 |
| 708 | Culture techniques | 10 | 128 | 143 | 256 |
| 709 | Brachytherapy | 34 | 125 | 52 | 135 |
| 710 | NMR | 8 | 124 | 315 | 341 |
| 711 | Hematopoietic stem cell transplantation | 7 | 122 | 261 | 606 |
| 711 | healthcare disparities | 11 | 122 | 221 | 424 |
| 713 | drug resistance | 2 | 121 | 1201 | 773 |
| 713 | phototherapy | 8 | 121 | 93 | 50 |
| 715 | paraphilias | 3 | 120 | 207 | 177 |
| 716 | Animal ecology | 2 | 118 | 1689 | 1193 |
| 716 | health planning | 8 | 118 | 1552 | 1954 |
| 718 | Psychoanalysis | 5 | 117 | 337 | 170 |
| 719 | Ornithology | 3 | 116 | 1190 | 769 |
| 719 | monitoring | 4 | 116 | 267 | 168 |
| 719 | Birds | 3 | 116 | 1447 | 925 |
| 722 | Catalysis | 1 | 114 | 5104 | 3635 |
| 722 | Statistical physics | 3 | 114 | 4085 | 3170 |
| 722 | Chromatographic analysis | 6 | 114 | 1633 | 1717 |
| 725 | Altitude Sickness | 4 | 112 | 107 | 108 |
| 725 | Altitude | 4 | 112 | 107 | 108 |
| 727 | food contamination | 3 | 111 | 1315 | 876 |
| 727 | Bacterial diseases | 3 | 111 | 268 | 284 |
| 729 | Antibacterial agents | 7 | 110 | 475 | 935 |
| 730 | soil microbiology | 1 | 109 | 2781 | 2181 |
| 731 | Biosensors | 3 | 108 | 1532 | 1956 |
| 731 | Photography | 12 | 108 | 1086 | 574 |
| 731 | Bioelectronics | 3 | 108 | 1313 | 1781 |
| 734 | families | 5 | 107 | 737 | 692 |
| 735 | Food additives | 6 | 106 | 949 | 1448 |
| 735 | disease vectors | 3 | 106 | 1205 | 1103 |
| 735 | Performance | 3 | 106 | 311 | 283 |
| 738 | aerosol | 3 | 105 | 495 | 407 |
| 739 | Protein engineering | 4 | 104 | 228 | 317 |
| 740 | Chromatography | 5 | 103 | 1567 | 1660 |
| 741 | health services accessibility | 16 | 102 | 338 | 949 |
| 741 | Biomarkers | 10 | 102 | 133 | 324 |
| 743 | sex differences | 1 | 99 | 353 | 179 |
| 744 | Environmental carcinogens | 2 | 98 | 38 | 75 |
| 744 | Phylogeny | 4 | 98 | 911 | 1255 |
| 746 | rural health | 6 | 96 | 140 | 206 |
| 747 | Genetic translocation | 1 | 95 | 445 | 245 |
| 747 | plasmids | 1 | 95 | 445 | 245 |
| 747 | Familial diseases | 5 | 95 | 175 | 234 |
| 750 | Artificial Intelligence | 2 | 94 | 5146 | 3604 |
| 750 | Menopause | 3 | 94 | 384 | 335 |
| 752 | Sexuality | 4 | 93 | 271 | 233 |
| 753 | Library Science | 7 | 92 | 900 | 633 |
| 753 | Parasites | 2 | 92 | 2391 | 1780 |
| 755 | Hearing | 13 | 91 | 329 | 716 |
| 755 | Breeding | 2 | 91 | 1794 | 1428 |
| 757 | Agricultural Chemistry | 4 | 90 | 2544 | 2755 |
| 757 | Cell surface receptors | 4 | 90 | 89 | 80 |
| 759 | drug toxicity | 4 | 89 | 387 | 587 |
| 760 | Plant breeding | 1 | 88 | 1716 | 944 |
| 761 | Combinatorial chemistry | 2 | 87 | 1337 | 1286 |
| 761 | Cellular senescence | 6 | 87 | 526 | 1195 |
| 761 | Population | 3 | 87 | 1284 | 1139 |
| 764 | Pharmacokinetics | 9 | 86 | 538 | 1185 |
| 765 | Experimental Psychology | 3 | 84 | 649 | 611 |
| 765 | Pastoral Theology | 5 | 84 | 98 | 12 |
| 765 | adolescence | 4 | 84 | 927 | 1101 |
| 765 | lasers | 2 | 84 | 2750 | 1658 |
| 769 | Synthetic biology | 3 | 83 | 363 | 394 |
| 770 | Ecological Genetics | 3 | 82 | 804 | 614 |
| 771 | Hematopoiesis | 4 | 81 | 48 | 66 |
| 771 | Biochemical Genetics | 4 | 81 | 443 | 294 |
| 771 | dual diagnosis | 4 | 81 | 61 | 49 |
| 771 | Functional foods | 2 | 81 | 594 | 481 |
| 771 | Nutritional support | 3 | 81 | 195 | 323 |
| 771 | embryo transfer | 7 | 81 | 327 | 568 |
| 771 | Echocardiography | 4 | 81 | 72 | 105 |
| 771 | Phytotherapy | 2 | 81 | 1336 | 1122 |
| 779 | Physical organic chemistry | 4 | 80 | 1419 | 1528 |
| 779 | preimplantation genetic diagnosis | 6 | 80 | 351 | 553 |
| 779 | Interferons | 3 | 80 | 343 | 394 |
| 782 | Mycotoxins | 1 | 79 | 361 | 157 |
| 782 | disease susceptibility | 4 | 79 | 327 | 440 |
| 782 | symptoms | 4 | 79 | 327 | 440 |
| 785 | Spectrum analysis | 9 | 78 | 3393 | 4888 |
| 786 | Quantitative Research | 1 | 76 | 413 | 301 |
| 786 | Amyloidosis | 2 | 76 | 212 | 192 |
| 788 | Pediatric Endocrinology | 6 | 75 | 231 | 258 |
| 788 | Mineralogy | 3 | 75 | 1602 | 1521 |
| 788 | Metallurgy | 3 | 75 | 3027 | 2614 |
| 788 | consumer behavior | 2 | 75 | 754 | 695 |
| 788 | Metals | 3 | 75 | 2726 | 2536 |
| 793 | Pediatric Nursing | 12 | 74 | 178 | 455 |
| 793 | chronic fatigue syndrome | 3 | 74 | 50 | 25 |
| 793 | Metabolic disorders in children | 5 | 74 | 228 | 203 |
| 796 | Cultural diversity | 1 | 73 | 339 | 255 |
| 796 | Plant physiology | 1 | 73 | 3487 | 2931 |
| 796 | Chemical analysis | 2 | 73 | 1779 | 1589 |
| 796 | Military psychology | 5 | 73 | 75 | 90 |
| 796 | plant communities | 1 | 73 | 1921 | 1657 |
| 801 | breastfeeding | 3 | 72 | 641 | 671 |
| 801 | chromatin | 2 | 72 | 234 | 318 |
| 801 | at-risk youth | 4 | 72 | 83 | 187 |
| 804 | pediatric pharmacology | 6 | 71 | 57 | 44 |
| 804 | Protein folding | 1 | 71 | 204 | 113 |
| 804 | men | 4 | 71 | 244 | 317 |
| 807 | Dental Public Health | 3 | 70 | 198 | 178 |
| 807 | Animal breeding | 3 | 70 | 898 | 903 |
| 807 | Biofeedback | 4 | 70 | 64 | 193 |
| 807 | venom | 10 | 70 | 418 | 1050 |
| 807 | Toxins | 10 | 70 | 464 | 1145 |
| 812 | pharmaceutical industry | 3 | 69 | 701 | 664 |
| 813 | Oral Medicine | 3 | 68 | 805 | 611 |
| 813 | Hallucinogens | 2 | 68 | 287 | 267 |
| 813 | Pregnancy | 3 | 68 | 1093 | 1161 |
| 816 | Global Health | 14 | 66 | 425 | 1226 |
| 816 | artificial cells | 3 | 66 | 115 | 77 |
| 818 | Engineering Mathematics | 3 | 65 | 3057 | 2294 |
| 818 | Numerical Analysis | 2 | 65 | 3128 | 2275 |
| 818 | Teaching | 4 | 65 | 1828 | 1785 |
| 818 | Brain damage | 4 | 65 | 431 | 687 |
| 818 | mathematical concepts | 2 | 65 | 599 | 354 |
| 823 | Freeze-Drying | 17 | 64 | 118 | 552 |
| 823 | Hypothermia | 17 | 64 | 118 | 552 |
| 823 | Freeze Drying | 17 | 64 | 118 | 552 |
| 823 | residential treatment | 2 | 64 | 221 | 168 |
| 827 | Microelectronics | 2 | 63 | 2516 | 2470 |
| 827 | Multiple sclerosis | 4 | 63 | 642 | 642 |
| 827 | Aquaculture | 1 | 63 | 2585 | 1821 |
| 830 | Ecophysiology | 2 | 62 | 352 | 324 |
| 831 | Soft Condensed Matter | 2 | 61 | 1501 | 1489 |
| 831 | Opioids | 5 | 61 | 43 | 54 |
| 833 | Cognitive Psychology | 1 | 60 | 841 | 415 |
| 833 | Ventilation | 2 | 60 | 816 | 739 |
| 835 | Serology | 14 | 59 | 133 | 742 |
| 835 | Immunohematology | 14 | 59 | 22 | 45 |
| 835 | Radiopharmaceuticals | 10 | 59 | 191 | 310 |
| 835 | Aggression | 4 | 59 | 421 | 752 |
| 839 | Nuclear Physics | 1 | 58 | 5819 | 4239 |
| 840 | Ethics | 6 | 57 | 764 | 1083 |
| 841 | Nonlinear Dynamics | 3 | 56 | 2478 | 2607 |
| 841 | plasma | 3 | 56 | 58 | 64 |
| 843 | Health care reform | 3 | 54 | 83 | 71 |
| 844 | Geriatric Nursing | 4 | 53 | 436 | 487 |
| 844 | occupational health and safety | 4 | 53 | 234 | 293 |
| 844 | adulthood | 1 | 53 | 255 | 135 |
| 847 | Chemical Engineering | 1 | 52 | 7062 | 5873 |
| 847 | Angst | 1 | 52 | 58 | 59 |
| 847 | Invertebrates | 3 | 52 | 762 | 939 |
| 847 | Animal | 1 | 52 | 404 | 223 |
| 851 | Youth | 2 | 51 | 940 | 1051 |
| 852 | Behavioral research | 4 | 50 | 446 | 535 |
| 853 | monoclonal antibodies | 7 | 49 | 85 | 289 |
| 853 | Photobiology | 2 | 49 | 2082 | 2124 |
| 853 | primary prevention | 3 | 49 | 536 | 747 |
| 856 | Animal Biotechnology | 1 | 48 | 407 | 269 |
| 856 | Frontotemporal lobar degeneration | 2 | 48 | 315 | 373 |
| 856 | Wildlife conservation | 1 | 48 | 2218 | 2168 |
| 856 | Travel | 6 | 48 | 689 | 1244 |
| 856 | Social interaction | 1 | 48 | 639 | 488 |
| 856 | animal diseases | 1 | 48 | 1044 | 784 |
| 856 | Soviet Union | 1 | 48 | 1625 | 560 |
| 863 | Reproductive health | 3 | 47 | 977 | 1323 |
| 863 | Ultrasonics | 5 | 47 | 914 | 1952 |
| 863 | musculoskeletal system | 1 | 47 | 353 | 309 |
| 863 | Ultrasound | 5 | 47 | 465 | 936 |
| 863 | Gastrointestinal diseases | 8 | 47 | 446 | 1160 |
| 868 | Crystallization | 3 | 46 | 656 | 577 |
| 868 | Socioeconomic Factors | 5 | 46 | 640 | 1375 |
| 868 | Pacific Islands | 4 | 46 | 311 | 366 |
| 868 | Vocational guidance | 1 | 46 | 1640 | 1284 |
| 868 | Calcium | 2 | 46 | 4 | 21 |
| 868 | Phosphorylation | 2 | 46 | 4 | 21 |
| 874 | Experimental Design | 2 | 45 | 387 | 445 |
| 874 | Quality Control | 2 | 45 | 2711 | 2821 |
| 874 | dissociative disorders | 4 | 45 | 71 | 206 |
| 877 | Biogeochemical cycles | 1 | 44 | 838 | 1072 |
| 877 | sanitation | 4 | 44 | 1673 | 3218 |
| 877 | Molecular recognition | 1 | 44 | 554 | 398 |
| 877 | Oligosaccharides | 3 | 44 | 282 | 528 |
| 877 | hygiene | 1 | 44 | 1216 | 956 |
| 882 | Dentistry | 2 | 42 | 1145 | 926 |
| 882 | Surface-Active Agents | 1 | 42 | 2097 | 2158 |
| 882 | Emerging infectious diseases | 1 | 42 | 777 | 760 |
| 882 | Surface properties | 1 | 42 | 2208 | 2271 |
| 882 | Biodiversity | 2 | 42 | 3296 | 3593 |
| 887 | Solid State Physics | 2 | 41 | 4764 | 4558 |
| 887 | Genetic testing | 4 | 41 | 312 | 477 |
| 887 | Cell adhesion | 1 | 41 | 393 | 406 |
| 890 | Paleobiology | 1 | 40 | 739 | 412 |
| 890 | Air Conditioning | 1 | 40 | 454 | 249 |
| 890 | heating | 1 | 40 | 363 | 211 |
| 893 | Forensic Pathology | 4 | 39 | 137 | 234 |
| 893 | Cell survival | 1 | 39 | 559 | 555 |
| 893 | disease outbreaks | 3 | 39 | 700 | 1268 |
| 893 | Epidemics | 3 | 39 | 672 | 1243 |
| 893 | death | 2 | 39 | 460 | 403 |
| 893 | molecular chaperones | 1 | 39 | 630 | 557 |
| 899 | Archaeology | 2 | 38 | 1947 | 1760 |
| 899 | Nonverbal Communication | 1 | 38 | 405 | 440 |
| 899 | Imaging systems | 3 | 38 | 901 | 958 |
| 902 | Ethnoarchaeology | 1 | 37 | 382 | 347 |
| 902 | Fishery management | 1 | 37 | 1683 | 1334 |
| 902 | Structural biology | 2 | 37 | 110 | 262 |
| 902 | homosexuality | 3 | 37 | 458 | 707 |
| 906 | Neuroimaging | 3 | 36 | 344 | 494 |
| 906 | Ion channels | 1 | 36 | 219 | 199 |
| 906 | mental processes | 3 | 36 | 399 | 540 |
| 909 | Apoptosis | 2 | 35 | 415 | 703 |
| 909 | neurotoxins | 2 | 35 | 415 | 703 |
| 909 | Neurotoxic agents | 2 | 35 | 415 | 703 |
| 909 | family violence | 3 | 35 | 474 | 819 |
| 909 | Nerve regeneration | 2 | 35 | 415 | 703 |
| 914 | Nuclear Engineering | 6 | 34 | 1064 | 1527 |
| 914 | Melanoma | 2 | 34 | 356 | 579 |
| 914 | Gene expression | 1 | 34 | 647 | 620 |
| 914 | Mutagenesis | 1 | 34 | 1092 | 882 |
| 914 | Mitochondria | 4 | 34 | 306 | 793 |
| 914 | Bacteriophages | 1 | 34 | 84 | 65 |
| 914 | Liquid chromatography | 3 | 34 | 642 | 697 |
| 921 | Language Disorders | 4 | 33 | 885 | 1375 |
| 921 | Biological Systems | 2 | 33 | 1167 | 1355 |
| 921 | sadness | 1 | 33 | 556 | 369 |
| 921 | caffeine | 3 | 33 | 8 | 47 |
| 921 | Cerebellum | 1 | 33 | 691 | 656 |
| 921 | DNA | 5 | 33 | 496 | 1188 |
| 921 | molecular design | 3 | 33 | 320 | 591 |
| 921 | antisocial personality disorder | 1 | 33 | 556 | 369 |
| 921 | Cerebellar ataxia | 1 | 33 | 691 | 656 |
| 930 | Systems Analysis | 1 | 32 | 2233 | 1808 |
| 931 | Social problems | 5 | 31 | 502 | 1121 |
| 931 | Food preferences | 1 | 31 | 789 | 872 |
| 933 | Congenital heart disease | 4 | 30 | 69 | 68 |
| 933 | Ferroelectricity | 4 | 30 | 944 | 1046 |
| 933 | Sound | 4 | 30 | 709 | 953 |
| 933 | nucleotides | 1 | 30 | 737 | 454 |
| 933 | Radio frequency | 4 | 30 | 310 | 550 |
| 933 | motor skills | 1 | 30 | 436 | 385 |
| 939 | nursing education | 1 | 29 | 311 | 221 |
| 939 | Hypertension in pregnancy | 7 | 29 | 186 | 345 |
| 939 | Japan | 2 | 29 | 3179 | 3123 |
| 942 | Marine Biology | 2 | 28 | 3537 | 4284 |
| 943 | Genetic Toxicology | 1 | 27 | 1075 | 1395 |
| 943 | Economic History | 1 | 27 | 6306 | 4558 |
| 943 | Fluid Dynamics | 1 | 27 | 2163 | 1969 |
| 943 | Dialysis | 7 | 27 | 87 | 177 |
| 943 | Hemodialysis | 7 | 27 | 26 | 33 |
| 943 | Southern states | 1 | 27 | 706 | 475 |
| 949 | Analytical Toxicology | 1 | 26 | 550 | 605 |
| 949 | Animal genetics | 2 | 26 | 859 | 1183 |
| 949 | Fish diseases | 1 | 26 | 287 | 310 |
| 949 | Aquatic animals | 1 | 26 | 466 | 463 |
| 949 | Longevity | 1 | 26 | 461 | 539 |
| 949 | recreation | 1 | 26 | 1269 | 966 |
| 955 | Nonparametric Statistics | 2 | 25 | 243 | 253 |
| 955 | Positive Psychology | 3 | 25 | 147 | 475 |
| 955 | Religion and Sociology | 1 | 25 | 584 | 277 |
| 955 | Pharmacy management | 3 | 25 | 400 | 586 |
| 955 | psychophysics | 2 | 25 | 487 | 565 |
| 955 | Oxygen therapy | 4 | 25 | 1 | 4 |
| 955 | Diving | 4 | 25 | 1 | 4 |
| 955 | Leisure | 1 | 25 | 678 | 690 |
| 955 | Thyroid hormones | 1 | 25 | 41 | 68 |
| 964 | Performing Arts | 1 | 24 | 478 | 61 |
| 964 | Dance | 1 | 24 | 579 | 241 |
| 964 | Drug targeting | 1 | 24 | 701 | 922 |
| 964 | Autism spectrum disorders | 3 | 24 | 69 | 219 |
| 964 | Dance therapy | 1 | 24 | 399 | 308 |
| 964 | urban health | 3 | 24 | 329 | 785 |
| 964 | DNS | 2 | 24 | 819 | 1306 |
| 964 | Cerebrospinal fluid | 1 | 24 | 306 | 370 |
| 964 | Zoonoses | 2 | 24 | 483 | 876 |
| 973 | Cochlear Implants | 2 | 23 | 163 | 192 |
| 973 | Public Health Administration | 2 | 23 | 615 | 636 |
| 973 | Evolutionary Genetics | 1 | 23 | 1567 | 1741 |
| 973 | Molecular Epidemiology | 1 | 23 | 1567 | 1741 |
| 973 | History of Medicine | 3 | 23 | 630 | 459 |
| 978 | Animal Nutrition | 2 | 22 | 846 | 1132 |
| 978 | Total Quality Management | 1 | 22 | 1201 | 1238 |
| 978 | Well-being | 1 | 22 | 338 | 349 |
| 978 | Pathogens | 1 | 22 | 262 | 310 |
| 982 | Obstetric Nursing | 7 | 21 | 188 | 615 |
| 982 | Regeneration | 1 | 21 | 145 | 174 |
| 982 | blood substitutes | 2 | 21 | 116 | 171 |
| 985 | Conservation Biology | 1 | 20 | 2256 | 2512 |
| 985 | Operations Research | 1 | 20 | 3744 | 3493 |
| 985 | Nanophotonics | 1 | 20 | 663 | 809 |
| 985 | air quality management | 1 | 20 | 1240 | 1559 |
| 985 | Multivariate Analysis | 2 | 20 | 692 | 905 |
| 985 | correctional psychology | 1 | 20 | 447 | 557 |
| 985 | peptides | 5 | 20 | 816 | 1885 |
| 985 | indoor air pollution | 1 | 20 | 901 | 1113 |
| 985 | fishing industry | 1 | 20 | 430 | 424 |
| 985 | Sick building syndrome | 1 | 20 | 901 | 1113 |
| 985 | Fisheries | 1 | 20 | 3088 | 2991 |
| 996 | Climatology | 3 | 19 | 2118 | 3511 |
| 996 | Clinical Laboratory Science | 2 | 19 | 440 | 633 |
| 996 | Contraception | 2 | 19 | 961 | 1609 |
| 996 | bioclimatology | 3 | 19 | 1113 | 2116 |
| 1000 | Educational Technology | 2 | 18 | 2206 | 2994 |