| 1 | Medicine | 472 | 40.6K | 102 | 61 |
| 2 | Hematology | 360 | 24.2K | 43 | 25 |
| 3 | Science | 326 | 22.8K | 73 | 87 |
| 4 | Neurology | 353 | 20.9K | 66 | 69 |
| 5 | Medical genetics | 282 | 17.0K | 35 | 42 |
| 6 | Research | 358 | 16.4K | 70 | 49 |
| 7 | Critical Care | 233 | 13.6K | 9 | 25 |
| 8 | Critical Care Medicine | 229 | 13.6K | 8 | 25 |
| 9 | Surgery | 54 | 13.1K | 206 | 54 |
| 10 | Biology | 137 | 12.8K | 143 | 144 |
| 11 | Pharmacology | 159 | 11.3K | 83 | 30 |
| 12 | Microbiology | 274 | 10.8K | 33 | 58 |
| 13 | Physics | 70 | 10.4K | 119 | 137 |
| 14 | Metabolism | 204 | 9.7K | 32 | 61 |
| 15 | Metabolic diseases | 177 | 9.1K | 35 | 49 |
| 16 | Molecular Biology | 175 | 8.3K | 126 | 149 |
| 17 | Endocrinology | 134 | 8.2K | 66 | 75 |
| 18 | Human genetics | 94 | 7.4K | 69 | 178 |
| 19 | Leukemia | 71 | 6.7K | 29 | 32 |
| 20 | Natural history | 16 | 6.6K | 136 | 147 |
| 21 | Biochemistry | 165 | 6.2K | 156 | 166 |
| 22 | Diabetes | 95 | 6.2K | 56 | 58 |
| 23 | Immunology | 61 | 6.1K | 142 | 80 |
| 24 | Diabetes mellitus | 89 | 6.0K | 52 | 55 |
| 25 | Immunity | 28 | 5.6K | 89 | 48 |
| 26 | Chemistry | 109 | 5.6K | 89 | 100 |
| 27 | rare diseases | 88 | 5.5K | 4 | 4 |
| 28 | Cardiovascular system | 48 | 5.4K | 103 | 75 |
| 29 | Genetics | 55 | 4.9K | 86 | 90 |
| 30 | Medical Microbiology | 153 | 4.9K | 13 | 37 |
| 31 | Pharmaceutical Chemistry | 28 | 4.8K | 107 | 35 |
| 32 | Cancer | 100 | 4.5K | 143 | 159 |
| 33 | Liver diseases | 45 | 4.2K | 83 | 88 |
| 34 | infection | 108 | 4.2K | 20 | 17 |
| 35 | Infections | 101 | 4.0K | 10 | 13 |
| 36 | Immune system | 9 | 3.9K | 103 | 29 |
| 37 | Autoimmunity | 43 | 3.8K | 15 | 8 |
| 38 | Hypertension | 28 | 3.8K | 166 | 93 |
| 39 | Parasitic Diseases | 98 | 3.5K | 10 | 14 |
| 40 | Europe | 96 | 3.3K | 22 | 30 |
| 41 | Virology | 69 | 3.2K | 57 | 134 |
| 42 | Obstetrics | 97 | 3.0K | 93 | 99 |
| 43 | Nervous system | 90 | 3.0K | 37 | 91 |
| 44 | Cytology | 42 | 2.8K | 240 | 215 |
| 45 | Behavior | 63 | 2.7K | 44 | 52 |
| 46 | Biophysics | 94 | 2.7K | 141 | 152 |
| 47 | Nutrition | 95 | 2.7K | 79 | 144 |
| 48 | Reproduction | 72 | 2.6K | 45 | 43 |
| 49 | Diagnostic Imaging | 61 | 2.6K | 56 | 52 |
| 50 | Psychiatry | 67 | 2.6K | 196 | 231 |
| 51 | Genomics | 63 | 2.5K | 42 | 43 |
| 52 | Alzheimer's disease | 35 | 2.5K | 71 | 31 |
| 53 | Psychophysiology | 49 | 2.4K | 54 | 75 |
| 54 | Transplantation | 66 | 2.3K | 55 | 76 |
| 55 | Neurosurgery | 44 | 2.3K | 37 | 37 |
| 56 | Oncology | 48 | 2.3K | 112 | 172 |
| 57 | Epidemiology | 79 | 2.2K | 70 | 114 |
| 58 | arthritis | 32 | 2.2K | 102 | 86 |
| 59 | Diagnostic microbiology | 55 | 2.1K | 29 | 69 |
| 60 | Dementia | 23 | 2.1K | 95 | 32 |
| 61 | Rheumatology | 32 | 2.0K | 82 | 68 |
| 62 | Pathology | 77 | 2.0K | 85 | 141 |
| 63 | drug therapy | 63 | 1.8K | 90 | 103 |
| 64 | Public Health | 59 | 1.8K | 152 | 187 |
| 65 | Nuclear Medicine | 42 | 1.8K | 52 | 64 |
| 66 | Clinical Chemistry | 82 | 1.7K | 46 | 92 |
| 67 | Cell Biology | 22 | 1.7K | 340 | 283 |
| 68 | Neurophysiology | 46 | 1.7K | 74 | 118 |
| 69 | Disease | 4 | 1.6K | 48 | 80 |
| 70 | Molecular Imaging | 26 | 1.6K | 57 | 57 |
| 71 | Immunotherapy | 23 | 1.6K | 151 | 95 |
| 72 | diseases | 3 | 1.6K | 60 | 82 |
| 73 | Medical Oncology | 34 | 1.5K | 167 | 155 |
| 74 | Physiology | 33 | 1.5K | 234 | 186 |
| 75 | Radiobiology | 29 | 1.4K | 127 | 113 |
| 76 | Host-parasite interactions | 15 | 1.3K | 38 | 58 |
| 77 | drugs | 36 | 1.3K | 62 | 49 |
| 78 | Cerebral cortex | 34 | 1.3K | 14 | 31 |
| 79 | human behavior | 14 | 1.3K | 80 | 69 |
| 80 | Pediatrics | 46 | 1.3K | 196 | 321 |
| 81 | Virulence | 13 | 1.2K | 43 | 44 |
| 82 | Hormones | 19 | 1.2K | 68 | 44 |
| 83 | Neuropsychology | 40 | 1.2K | 40 | 58 |
| 84 | Biometrics | 27 | 1.2K | 14 | 17 |
| 85 | Cell differentiation | 14 | 1.1K | 133 | 107 |
| 86 | Environment | 18 | 1.1K | 95 | 100 |
| 87 | viruses | 17 | 1.1K | 76 | 74 |
| 88 | Animal Behavior | 11 | 1.1K | 40 | 41 |
| 89 | Parenteral nutrition | 36 | 1.1K | 45 | 110 |
| 90 | Ethology | 10 | 1.1K | 30 | 40 |
| 91 | Dermatology | 40 | 1.1K | 139 | 158 |
| 92 | Cell death | 20 | 1.1K | 108 | 121 |
| 93 | Medical innovations | 12 | 1.0K | 52 | 92 |
| 94 | Biocompatible Materials | 25 | 1.0K | 145 | 179 |
| 95 | Allergy | 24 | 1.0K | 125 | 155 |
| 96 | Lung Transplantation | 20 | 1.0K | 70 | 69 |
| 96 | Health | 30 | 1.0K | 116 | 134 |
| 96 | Heart transplantation | 20 | 1.0K | 70 | 69 |
| 99 | Respiration | 30 | 1.0K | 75 | 81 |
| 99 | Cognition | 27 | 1.0K | 20 | 25 |
| 101 | Environmental Health | 25 | 981 | 98 | 109 |
| 102 | drug development | 10 | 943 | 68 | 95 |
| 103 | Kidney diseases | 24 | 925 | 71 | 74 |
| 104 | Geriatrics | 47 | 891 | 124 | 220 |
| 105 | Clinical Biochemistry | 31 | 889 | 55 | 80 |
| 106 | Obesity | 29 | 870 | 112 | 159 |
| 106 | Aging | 28 | 870 | 168 | 186 |
| 108 | Medical Technology | 31 | 852 | 36 | 35 |
| 109 | Enteral nutrition | 24 | 846 | 48 | 102 |
| 110 | Biomedical Engineering | 30 | 844 | 174 | 173 |
| 111 | Pediatric Neurology | 22 | 836 | 101 | 208 |
| 112 | mycoses | 16 | 826 | 18 | 60 |
| 113 | Brain | 35 | 814 | 118 | 184 |
| 114 | Drug delivery systems | 13 | 792 | 29 | 34 |
| 115 | rehabilitation | 32 | 768 | 110 | 151 |
| 116 | Steroids | 14 | 767 | 63 | 45 |
| 117 | Antibacterial agents | 20 | 754 | 35 | 37 |
| 118 | epilepsy | 31 | 747 | 42 | 63 |
| 119 | Randomized Controlled Trials | 42 | 736 | 26 | 43 |
| 120 | Bones | 18 | 722 | 54 | 75 |
| 121 | Ophthalmology | 16 | 714 | 235 | 164 |
| 122 | Cerebellum | 14 | 707 | 13 | 11 |
| 122 | Cerebellar ataxia | 14 | 707 | 13 | 11 |
| 124 | Immunopathology | 21 | 698 | 119 | 123 |
| 125 | Nephrology | 14 | 695 | 80 | 78 |
| 125 | Chemotherapy | 21 | 695 | 123 | 103 |
| 127 | Clinical Pharmacology | 32 | 686 | 77 | 99 |
| 128 | Embryology | 8 | 681 | 138 | 109 |
| 129 | Homeostasis | 2 | 678 | 130 | 107 |
| 129 | Cell metabolism | 2 | 678 | 177 | 110 |
| 131 | Cytogenetics | 15 | 659 | 95 | 174 |
| 132 | pain | 18 | 654 | 121 | 173 |
| 133 | Vaccines | 39 | 652 | 51 | 112 |
| 134 | Clinical Immunology | 25 | 639 | 90 | 116 |
| 135 | Electrophoresis | 19 | 635 | 14 | 17 |
| 136 | Neurons | 3 | 618 | 78 | 101 |
| 137 | Sleep Disorders | 43 | 608 | 63 | 160 |
| 137 | Chromatographic analysis | 19 | 608 | 22 | 18 |
| 137 | Sleep | 43 | 608 | 61 | 161 |
| 140 | Chromatography | 18 | 600 | 15 | 12 |
| 140 | Spectrum analysis | 18 | 600 | 23 | 26 |
| 142 | Autoantibodies | 15 | 591 | 25 | 38 |
| 142 | Autoimmune diseases | 15 | 591 | 31 | 43 |
| 144 | Physical Therapy | 18 | 590 | 105 | 133 |
| 145 | Diet | 23 | 587 | 109 | 184 |
| 146 | Child psychology | 4 | 581 | 197 | 100 |
| 147 | Toxicology | 28 | 559 | 164 | 232 |
| 147 | Audiology | 15 | 559 | 55 | 47 |
| 149 | Bacterial infections | 7 | 551 | 76 | 78 |
| 150 | nucleic acids | 13 | 546 | 79 | 111 |
| 151 | Flow cytometry | 18 | 541 | 9 | 16 |
| 152 | Genetic disorders | 23 | 540 | 53 | 67 |
| 152 | scientific societies | 23 | 540 | 54 | 69 |
| 154 | Medical Physics | 21 | 511 | 153 | 170 |
| 155 | Biotechnology | 13 | 503 | 255 | 274 |
| 156 | Mental Disorders | 22 | 499 | 285 | 423 |
| 157 | Hemophilia | 50 | 490 | 14 | 68 |
| 158 | Hemodynamics | 6 | 471 | 126 | 98 |
| 159 | Ecology | 8 | 467 | 132 | 115 |
| 160 | Geriatric Oncology | 20 | 464 | 32 | 59 |
| 161 | United States | 14 | 461 | 197 | 194 |
| 162 | Nanotechnology | 13 | 459 | 206 | 243 |
| 163 | Bone diseases | 5 | 457 | 101 | 93 |
| 164 | Statistics | 18 | 450 | 25 | 38 |
| 165 | Respiratory system | 17 | 440 | 38 | 59 |
| 165 | Attention | 16 | 440 | 120 | 145 |
| 167 | Infertility | 10 | 425 | 179 | 207 |
| 167 | fertility | 10 | 425 | 178 | 209 |
| 169 | Child | 40 | 424 | 145 | 271 |
| 170 | Perception | 14 | 423 | 124 | 140 |
| 171 | Neurobiology | 11 | 422 | 175 | 214 |
| 172 | Genetic engineering | 10 | 419 | 176 | 168 |
| 173 | Memory | 13 | 417 | 136 | 147 |
| 174 | Muscles | 20 | 416 | 56 | 130 |
| 175 | Visual Perception | 13 | 412 | 127 | 138 |
| 176 | Urology | 22 | 409 | 307 | 419 |
| 176 | Inflammation | 9 | 409 | 117 | 131 |
| 178 | Long-Term Care | 9 | 404 | 56 | 80 |
| 178 | Long-term care facilities | 9 | 404 | 56 | 80 |
| 180 | Genetic therapy | 16 | 401 | 89 | 165 |
| 181 | Thorax | 7 | 396 | 97 | 84 |
| 182 | Environmental Toxicology | 3 | 390 | 270 | 100 |
| 183 | drug evaluation | 17 | 382 | 34 | 41 |
| 184 | Palliative Care | 12 | 381 | 93 | 84 |
| 185 | pain management | 12 | 377 | 58 | 57 |
| 186 | Developmental Biology | 7 | 375 | 147 | 193 |
| 187 | Mycology | 16 | 374 | 21 | 28 |
| 188 | Sexual health | 14 | 369 | 58 | 79 |
| 189 | Oncogenes | 5 | 368 | 260 | 262 |
| 190 | Chronic diseases | 14 | 365 | 54 | 125 |
| 191 | Antiviral agents | 15 | 354 | 26 | 35 |
| 192 | Systems Biology | 13 | 352 | 64 | 61 |
| 193 | brain mapping | 7 | 351 | 83 | 95 |
| 194 | occupational diseases | 15 | 346 | 29 | 54 |
| 195 | Anatomy | 6 | 344 | 130 | 129 |
| 195 | Analytical Chemistry | 13 | 344 | 152 | 165 |
| 197 | Lipids | 8 | 322 | 148 | 146 |
| 198 | Therapeutics | 12 | 318 | 212 | 286 |
| 199 | Cardiovascular diseases | 19 | 315 | 209 | 341 |
| 199 | Proteome | 9 | 315 | 54 | 87 |
| 199 | Stem cells | 9 | 315 | 248 | 274 |
| 202 | Occupational Health | 17 | 314 | 25 | 41 |
| 203 | Histology | 8 | 312 | 171 | 133 |
| 204 | Child Development | 9 | 310 | 247 | 229 |
| 205 | Pituitary gland | 12 | 306 | 17 | 31 |
| 206 | monitoring | 21 | 303 | 7 | 9 |
| 207 | Pharmacogenetics | 13 | 300 | 64 | 119 |
| 208 | Coronary heart disease | 2 | 298 | 128 | 9 |
| 209 | preventive medicine | 9 | 295 | 120 | 134 |
| 210 | gene mapping | 6 | 288 | 172 | 173 |
| 211 | Emergency Medicine | 20 | 283 | 229 | 341 |
| 212 | environmental exposure | 10 | 279 | 78 | 72 |
| 213 | Geriatric Pharmacology | 8 | 275 | 24 | 27 |
| 213 | Elderly | 8 | 275 | 87 | 38 |
| 213 | older people | 8 | 275 | 117 | 79 |
| 216 | biochemical markers | 11 | 274 | 32 | 39 |
| 217 | Food | 10 | 270 | 79 | 110 |
| 218 | gastrointestinal tract | 7 | 267 | 22 | 46 |
| 219 | Cognitive neuroscience | 5 | 265 | 65 | 77 |
| 220 | Mental illness | 12 | 258 | 251 | 425 |
| 221 | Neurochemistry | 11 | 251 | 243 | 353 |
| 222 | Proteomics | 7 | 250 | 72 | 94 |
| 223 | Heart Failure | 6 | 247 | 99 | 124 |
| 224 | Evolutionary Genetics | 3 | 241 | 58 | 11 |
| 224 | Molecular Epidemiology | 3 | 241 | 58 | 11 |
| 226 | Chromosome mapping | 4 | 235 | 217 | 144 |
| 227 | Thrombosis | 21 | 234 | 95 | 273 |
| 228 | genome | 5 | 232 | 122 | 171 |
| 229 | Neuromuscular diseases | 16 | 230 | 61 | 143 |
| 230 | drug resistance | 10 | 228 | 42 | 99 |
| 231 | Computational Biology | 13 | 227 | 58 | 126 |
| 232 | Pharmaceutical Technology | 12 | 225 | 17 | 33 |
| 233 | Lymphoma | 20 | 219 | 21 | 43 |
| 234 | Microbial Ecology | 5 | 214 | 87 | 122 |
| 235 | Infection control | 6 | 209 | 33 | 35 |
| 236 | Bioinformatics | 11 | 196 | 64 | 133 |
| 237 | Carcinogenesis | 8 | 194 | 101 | 174 |
| 238 | Jurisprudence | 9 | 187 | 25 | 24 |
| 239 | Sarcopenia | 4 | 186 | 70 | 98 |
| 240 | gene therapy | 12 | 185 | 104 | 280 |
| 241 | Radiology | 11 | 183 | 249 | 259 |
| 242 | Molecular evolution | 3 | 181 | 42 | 40 |
| 242 | Growth | 5 | 181 | 73 | 135 |
| 244 | Neuropsychiatry | 5 | 178 | 173 | 173 |
| 245 | disease outbreaks | 13 | 175 | 27 | 95 |
| 245 | Epidemics | 13 | 175 | 26 | 94 |
| 247 | Emergency Medical Services | 12 | 174 | 62 | 99 |
| 247 | Genetic regulation | 2 | 174 | 235 | 212 |
| 247 | Quality of life | 7 | 174 | 143 | 238 |
| 247 | cloning | 2 | 174 | 188 | 182 |
| 251 | Biopharmaceutics | 7 | 170 | 32 | 95 |
| 251 | Research Design | 6 | 170 | 113 | 144 |
| 251 | Multiple Myeloma | 17 | 170 | 26 | 48 |
| 254 | Recombinant DNA | 9 | 168 | 117 | 173 |
| 255 | Retina | 1 | 164 | 75 | 94 |
| 255 | eye | 1 | 164 | 100 | 99 |
| 257 | Developmental Psychology | 1 | 163 | 118 | 59 |
| 258 | Image Processing | 6 | 159 | 74 | 127 |
| 258 | Biomarkers | 10 | 159 | 22 | 51 |
| 260 | calcification | 8 | 157 | 68 | 144 |
| 261 | Respiratory Infections | 8 | 156 | 38 | 50 |
| 261 | medical education | 17 | 156 | 129 | 307 |
| 261 | Influenza | 8 | 156 | 10 | 27 |
| 264 | Tropical Medicine | 10 | 155 | 170 | 233 |
| 265 | Pharmacy | 10 | 152 | 80 | 163 |
| 265 | Hemostasis | 15 | 152 | 77 | 207 |
| 267 | Food Microbiology | 6 | 150 | 23 | 81 |
| 267 | food technology | 6 | 150 | 39 | 87 |
| 267 | Molecular cloning | 7 | 150 | 114 | 164 |
| 267 | Genetic recombination | 7 | 150 | 113 | 160 |
| 267 | Ultrasonics | 7 | 150 | 23 | 45 |
| 272 | Genes | 5 | 148 | 77 | 54 |
| 273 | monoclonal antibodies | 4 | 147 | 22 | 16 |
| 274 | Health Policy | 9 | 146 | 220 | 360 |
| 275 | Environmental monitoring | 4 | 145 | 229 | 242 |
| 276 | Primary health care | 19 | 142 | 105 | 317 |
| 277 | Decision making | 6 | 139 | 60 | 83 |
| 278 | Environmental Policy | 3 | 136 | 130 | 152 |
| 278 | Multiple sclerosis | 10 | 136 | 65 | 83 |
| 280 | Radioisotopes | 10 | 135 | 55 | 84 |
| 281 | Malaria | 7 | 133 | 38 | 62 |
| 282 | Organ transplantation | 13 | 132 | 66 | 87 |
| 283 | Sports Medicine | 8 | 130 | 284 | 382 |
| 284 | Pediatric Rheumatology | 8 | 129 | 49 | 67 |
| 284 | Health Risk Assessment | 2 | 129 | 24 | 6 |
| 286 | Radiography | 4 | 128 | 197 | 230 |
| 287 | sex differences | 1 | 127 | 53 | 15 |
| 288 | Botany | 1 | 126 | 110 | 46 |
| 288 | Plant Biotechnology | 1 | 126 | 5 | 7 |
| 288 | Psychopharmacology | 3 | 126 | 435 | 459 |
| 288 | Plant genetic engineering | 1 | 126 | 35 | 17 |
| 288 | musculoskeletal system | 1 | 126 | 65 | 17 |
| 288 | alcohol | 2 | 126 | 3 | 1 |
| 288 | Digestive system diseases | 9 | 126 | 228 | 419 |
| 295 | Otolaryngology | 3 | 124 | 249 | 182 |
| 295 | cardiac catheterization | 5 | 124 | 425 | 386 |
| 297 | Computer Vision | 4 | 122 | 63 | 135 |
| 297 | Risk assessment | 1 | 122 | 12 | 4 |
| 297 | ecological risk assessment | 1 | 122 | 2 | 1 |
| 300 | Health Services Research | 18 | 120 | 99 | 346 |
| 300 | vascular diseases | 6 | 120 | 122 | 259 |
| 302 | Travel | 8 | 119 | 74 | 115 |
| 303 | Psychology | 8 | 116 | 416 | 666 |
| 304 | Schizophrenia | 1 | 114 | 530 | 353 |
| 305 | Bioengineering | 6 | 113 | 339 | 490 |
| 305 | Public Policy | 8 | 113 | 61 | 119 |
| 305 | Liposomes | 2 | 113 | 25 | 14 |
| 305 | Lipid bilayers | 2 | 113 | 19 | 9 |
| 309 | Neurogenetics | 8 | 111 | 15 | 61 |
| 310 | Electrophysiology | 12 | 110 | 191 | 373 |
| 311 | nanoscience | 3 | 109 | 217 | 275 |
| 311 | Culture techniques | 1 | 109 | 56 | 19 |
| 311 | Consciousness | 4 | 109 | 20 | 29 |
| 314 | Biomechanics | 7 | 106 | 96 | 206 |
| 314 | Sports | 5 | 106 | 135 | 177 |
| 316 | Synaptic Transmission | 3 | 105 | 111 | 130 |
| 317 | Magnetic Resonance Imaging | 6 | 103 | 118 | 164 |
| 317 | Microorganisms | 2 | 103 | 103 | 156 |
| 319 | miniaturization | 2 | 101 | 131 | 140 |
| 320 | Immunochemistry | 3 | 100 | 201 | 187 |
| 320 | DNS | 3 | 100 | 75 | 53 |
| 322 | Endocrine system | 21 | 99 | 54 | 71 |
| 323 | prostaglandins | 1 | 98 | 178 | 89 |
| 324 | proteins | 4 | 97 | 200 | 243 |
| 325 | Biochemical Engineering | 1 | 95 | 435 | 318 |
| 325 | Industrial Microbiology | 1 | 95 | 153 | 68 |
| 327 | Oral Medicine | 3 | 93 | 117 | 71 |
| 328 | Artificial Intelligence | 1 | 92 | 251 | 136 |
| 329 | Environmental Management | 1 | 91 | 30 | 19 |
| 329 | Mass Spectrometry | 4 | 91 | 36 | 63 |
| 329 | visualization | 12 | 91 | 68 | 81 |
| 332 | disabilities | 6 | 90 | 97 | 189 |
| 333 | Molecular Pharmacology | 3 | 89 | 93 | 130 |
| 333 | Environmental Microbiology | 1 | 89 | 206 | 168 |
| 333 | Drug design | 7 | 89 | 78 | 189 |
| 333 | soil microbiology | 1 | 89 | 134 | 133 |
| 337 | Andrology | 6 | 88 | 90 | 159 |
| 337 | cell physiology | 1 | 88 | 552 | 417 |
| 339 | Adolescent Medicine | 2 | 87 | 285 | 361 |
| 339 | Sonochemistry | 1 | 87 | 27 | 16 |
| 341 | Histocompatibility Testing | 2 | 86 | 189 | 139 |
| 342 | Neurotransmitters | 6 | 85 | 62 | 112 |
| 343 | Nuclear Physics | 7 | 84 | 29 | 50 |
| 344 | Immunopharmacology | 2 | 82 | 408 | 344 |
| 344 | Immunogenetics | 3 | 82 | 220 | 234 |
| 346 | Reproductive toxicology | 3 | 81 | 51 | 68 |
| 346 | Antigens | 6 | 81 | 148 | 243 |
| 348 | Emerging infectious diseases | 5 | 80 | 49 | 113 |
| 348 | nuclear magnetic resonance | 6 | 80 | 65 | 130 |
| 348 | Magnetic Resonance Spectroscopy | 6 | 80 | 64 | 128 |
| 351 | Microelectronics | 1 | 78 | 103 | 107 |
| 351 | Industrial Safety | 11 | 78 | 18 | 56 |
| 351 | Parasitology | 5 | 78 | 113 | 221 |
| 351 | Parasites | 5 | 78 | 53 | 103 |
| 355 | Medical Laboratory Science | 6 | 75 | 173 | 307 |
| 356 | health services accessibility | 3 | 74 | 130 | 128 |
| 356 | cytokines | 1 | 74 | 637 | 456 |
| 356 | Safety management | 8 | 74 | 18 | 70 |
| 359 | Molecular Genetics | 3 | 72 | 109 | 152 |
| 359 | Health Education | 5 | 72 | 227 | 367 |
| 359 | Cardiac electrophysiology | 3 | 72 | 101 | 181 |
| 359 | Vision | 1 | 72 | 158 | 127 |
| 359 | arrhythmia | 3 | 72 | 101 | 181 |
| 364 | Polymers | 3 | 71 | 173 | 198 |
| 364 | Electron Microscopy | 1 | 71 | 99 | 27 |
| 366 | medical errors | 1 | 70 | 74 | 24 |
| 366 | safety | 1 | 70 | 74 | 24 |
| 368 | Medical Imaging | 4 | 69 | 131 | 186 |
| 368 | Nanobiotechnology | 1 | 69 | 219 | 188 |
| 368 | Antibodies | 5 | 69 | 106 | 179 |
| 371 | Chronobiology | 2 | 68 | 72 | 75 |
| 371 | Circadian rhythms | 2 | 68 | 64 | 73 |
| 371 | biological clocks | 2 | 68 | 72 | 75 |
| 371 | circadian rhythm | 2 | 68 | 72 | 75 |
| 371 | biological rhythms | 2 | 68 | 72 | 75 |
| 376 | liver | 1 | 67 | 244 | 134 |
| 376 | Gastrointestinal diseases | 2 | 67 | 481 | 339 |
| 378 | Signal Transduction | 2 | 65 | 421 | 496 |
| 379 | Patient education | 3 | 64 | 169 | 262 |
| 379 | Endocrine glands | 1 | 64 | 116 | 152 |
| 379 | Gerontology | 13 | 64 | 107 | 392 |
| 379 | counseling | 3 | 64 | 216 | 296 |
| 379 | Familial diseases | 5 | 64 | 64 | 119 |
| 379 | hygiene | 2 | 64 | 55 | 86 |
| 385 | Ferroelectricity | 6 | 63 | 12 | 36 |
| 385 | Sound | 6 | 63 | 23 | 62 |
| 385 | Radio | 6 | 63 | 12 | 55 |
| 385 | Ultrasound | 6 | 63 | 17 | 67 |
| 385 | Radio frequency | 6 | 63 | 11 | 36 |
| 390 | Engineering | 3 | 62 | 308 | 419 |
| 390 | Electronics | 3 | 62 | 162 | 258 |
| 390 | Nitric oxide | 2 | 62 | 28 | 42 |
| 390 | Pregnancy | 6 | 62 | 157 | 321 |
| 394 | Analytical Biochemistry | 4 | 60 | 132 | 196 |
| 395 | industrial hygiene | 6 | 59 | 34 | 89 |
| 395 | Astrocytes | 2 | 59 | 95 | 164 |
| 397 | Ethics | 5 | 58 | 32 | 78 |
| 397 | X-rays | 4 | 58 | 260 | 313 |
| 399 | software | 4 | 57 | 102 | 202 |
| 400 | Autism | 2 | 56 | 149 | 229 |
| 401 | Genetic Toxicology | 1 | 54 | 70 | 78 |
| 401 | Chromosomes | 1 | 54 | 211 | 166 |
| 401 | Androgens | 1 | 54 | 98 | 98 |
| 401 | Spine | 1 | 54 | 656 | 589 |
| 401 | Information Science | 3 | 54 | 93 | 206 |
| 406 | risk factors | 7 | 53 | 141 | 375 |
| 406 | Hearing | 4 | 53 | 102 | 186 |
| 408 | Veterinary Immunology | 4 | 51 | 7 | 21 |
| 408 | Intellectual disability | 2 | 51 | 188 | 188 |
| 410 | Functional Genomics | 2 | 50 | 46 | 106 |
| 411 | Amyotrophic Lateral Sclerosis | 3 | 49 | 68 | 122 |
| 411 | locomotion | 3 | 49 | 136 | 230 |
| 411 | posture | 3 | 49 | 136 | 230 |
| 411 | DNA polymerases | 1 | 49 | 112 | 174 |
| 411 | gait | 3 | 49 | 136 | 230 |
| 411 | walking | 3 | 49 | 136 | 230 |
| 417 | Developmental Disabilities | 2 | 48 | 234 | 349 |
| 418 | Artificial Organs | 3 | 47 | 257 | 284 |
| 418 | Materials | 3 | 47 | 334 | 475 |
| 418 | United Kingdom | 1 | 47 | 340 | 306 |
| 421 | Gene expression | 1 | 46 | 73 | 42 |
| 421 | Cell division | 1 | 46 | 122 | 114 |
| 423 | Environmental Engineering | 2 | 45 | 203 | 317 |
| 423 | Environmental Law | 2 | 45 | 163 | 275 |
| 423 | environmental protection | 2 | 45 | 286 | 366 |
| 423 | biological evolution | 4 | 45 | 35 | 135 |
| 427 | Nanostructures | 2 | 44 | 206 | 273 |
| 428 | Robotics | 3 | 43 | 24 | 65 |
| 428 | Clinical Trials | 3 | 43 | 159 | 251 |
| 428 | Alternative Medicine | 3 | 43 | 269 | 486 |
| 428 | complementary therapies | 3 | 43 | 292 | 512 |
| 428 | toxicity testing | 1 | 43 | 162 | 119 |
| 433 | Medical Ethics | 5 | 41 | 144 | 235 |
| 434 | Forensic Pathology | 3 | 40 | 27 | 34 |
| 434 | Reproductive health | 2 | 40 | 271 | 338 |
| 434 | Protozoa | 2 | 40 | 17 | 32 |
| 434 | disease vectors | 2 | 40 | 70 | 121 |
| 434 | free radicals | 1 | 40 | 531 | 655 |
| 439 | Bacteriology | 2 | 39 | 176 | 275 |
| 439 | blood transfusion | 3 | 39 | 311 | 431 |
| 439 | RNA | 1 | 39 | 85 | 121 |
| 442 | Signal Processing | 1 | 37 | 252 | 193 |
| 442 | Precision medicine | 4 | 37 | 41 | 130 |
| 442 | Mitochondria | 1 | 37 | 104 | 126 |
| 445 | Contraception | 2 | 36 | 174 | 263 |
| 445 | Electrocardiography | 7 | 36 | 56 | 159 |
| 445 | Zeolites | 3 | 36 | 6 | 10 |
| 445 | traffic safety | 2 | 36 | 20 | 36 |
| 449 | Screening | 3 | 35 | 27 | 75 |
| 449 | Ethnology | 2 | 35 | 54 | 104 |
| 449 | Fungi | 1 | 35 | 28 | 45 |
| 452 | Adolescent | 10 | 34 | 271 | 744 |
| 452 | Food preferences | 1 | 34 | 10 | 16 |
| 454 | breastfeeding | 2 | 33 | 113 | 201 |
| 454 | Chemical analysis | 1 | 33 | 152 | 166 |
| 456 | drug abuse | 5 | 32 | 69 | 217 |
| 457 | Orthopedics | 5 | 31 | 830 | 1527 |
| 457 | Molecular Microbiology | 1 | 31 | 179 | 228 |
| 457 | Biological Systems | 1 | 31 | 44 | 75 |
| 457 | behavior therapy | 1 | 31 | 246 | 276 |
| 457 | Membranes | 2 | 31 | 159 | 281 |
| 457 | Brain damage | 1 | 31 | 274 | 308 |
| 457 | drug control | 3 | 31 | 49 | 114 |
| 457 | harm reduction | 4 | 31 | 15 | 68 |
| 465 | Mathematics | 2 | 30 | 147 | 157 |
| 466 | Psychosomatic Medicine | 3 | 29 | 290 | 625 |
| 466 | Pharmacokinetics | 2 | 29 | 101 | 202 |
| 466 | particles | 1 | 29 | 22 | 28 |
| 466 | Trace elements | 2 | 29 | 17 | 41 |
| 470 | Social Psychology | 1 | 28 | 228 | 259 |
| 470 | Neuroimaging | 1 | 28 | 98 | 87 |
| 470 | Bioethics | 4 | 28 | 116 | 222 |
| 470 | optical instruments | 1 | 28 | 38 | 40 |
| 470 | biological factors | 3 | 28 | 190 | 408 |
| 470 | optical phenomena | 1 | 28 | 28 | 34 |
| 470 | Parkinson's disease | 2 | 28 | 91 | 197 |
| 477 | Language Disorders | 4 | 27 | 104 | 262 |
| 477 | Pediatric Hematology | 4 | 27 | 164 | 250 |
| 477 | Genetic translocation | 1 | 27 | 16 | 32 |
| 477 | Speech Disorders | 4 | 27 | 156 | 370 |
| 477 | plasmids | 1 | 27 | 16 | 32 |
| 477 | anesthesia | 1 | 27 | 584 | 428 |
| 483 | Engineering Mathematics | 1 | 26 | 53 | 51 |
| 483 | Numerical Analysis | 1 | 26 | 54 | 57 |
| 483 | Analytical Toxicology | 3 | 26 | 27 | 92 |
| 483 | Nutrition physiology | 3 | 26 | 90 | 230 |
| 483 | health services | 2 | 26 | 205 | 271 |
| 483 | tomography | 3 | 26 | 150 | 309 |
| 483 | mathematical concepts | 1 | 26 | 52 | 48 |
| 490 | Experimental Psychology | 1 | 25 | 28 | 28 |
| 490 | Radiopharmaceuticals | 3 | 25 | 40 | 52 |
| 490 | Osteoporosis | 3 | 25 | 101 | 271 |
| 493 | Radiation Protection | 4 | 24 | 58 | 131 |
| 493 | DNA | 3 | 24 | 75 | 234 |
| 493 | Acarology | 1 | 24 | 6 | 17 |
| 493 | Mites | 1 | 24 | 10 | 17 |
| 493 | Ticks | 1 | 24 | 6 | 17 |
| 493 | Acari | 1 | 24 | 6 | 17 |
| 499 | Combinatorial chemistry | 1 | 23 | 101 | 159 |
| 499 | Vaccination | 2 | 23 | 62 | 135 |
| 499 | Pharmacy management | 3 | 23 | 33 | 91 |
| 502 | Lipid metabolism | 1 | 22 | 112 | 167 |
| 502 | Substance Abuse | 2 | 22 | 342 | 547 |
| 502 | System analysis | 5 | 22 | 36 | 207 |
| 502 | Lipid | 1 | 22 | 112 | 167 |
| 502 | Adipose tissue | 1 | 22 | 30 | 45 |
| 502 | Phylogeny | 1 | 22 | 9 | 23 |
| 508 | Dialysis | 1 | 21 | 148 | 86 |
| 508 | Kidney transplantation | 1 | 21 | 69 | 68 |
| 510 | Biosensors | 1 | 20 | 253 | 386 |
| 510 | Health insurance | 2 | 20 | 95 | 191 |
| 510 | Bioelectronics | 1 | 20 | 214 | 338 |
| 510 | Exercise | 1 | 20 | 236 | 288 |
| 510 | sports injuries | 1 | 20 | 373 | 393 |
| 515 | Kinetics | 1 | 19 | 35 | 52 |
| 515 | Erectile dysfunction | 1 | 19 | 186 | 222 |
| 515 | Antioxidants | 1 | 19 | 252 | 404 |
| 515 | Fluorescence spectroscopy | 2 | 19 | 90 | 173 |
| 515 | Molecular Spectroscopy | 2 | 19 | 137 | 254 |
| 515 | Asia | 3 | 19 | 389 | 619 |
| 515 | Post-traumatic stress disorder | 2 | 19 | 155 | 322 |
| 515 | Oxidation-reduction | 1 | 19 | 324 | 514 |
| 515 | Pancreatic diseases | 3 | 19 | 147 | 355 |
| 524 | Surface Chemistry | 1 | 18 | 310 | 385 |
| 524 | Surface-Active Agents | 1 | 18 | 176 | 246 |
| 524 | Microcirculation | 4 | 18 | 67 | 290 |
| 524 | Neuropharmacology | 2 | 18 | 176 | 347 |
| 524 | Teaching | 1 | 18 | 240 | 163 |
| 524 | Surface properties | 1 | 18 | 176 | 246 |
| 524 | Colloids | 1 | 18 | 303 | 396 |
| 524 | Blood vessels | 4 | 18 | 52 | 246 |
| 532 | Program Evaluation | 1 | 17 | 16 | 20 |
| 532 | polymerization | 2 | 17 | 142 | 248 |
| 532 | evaluation | 1 | 17 | 17 | 20 |
| 535 | Pediatric Dermatology | 4 | 16 | 153 | 447 |
| 535 | Asthma | 1 | 16 | 551 | 641 |
| 535 | Drug delivery devices | 2 | 16 | 21 | 110 |
| 538 | Clinical Psychology | 3 | 15 | 276 | 644 |
| 538 | Information Systems | 2 | 15 | 154 | 298 |
| 538 | Metastasis | 1 | 15 | 96 | 199 |
| 538 | Cross-Cultural Studies | 1 | 15 | 247 | 266 |
| 538 | biobanks | 1 | 15 | 52 | 85 |
| 538 | Eating Disorders | 2 | 15 | 252 | 457 |
| 538 | Feeding and Eating Disorders | 2 | 15 | 247 | 447 |
| 538 | cross-cultural comparison | 1 | 15 | 257 | 283 |
| 538 | sexual behavior | 1 | 15 | 125 | 159 |
| 547 | Global Health | 2 | 14 | 285 | 487 |
| 547 | behavioral medicine | 2 | 14 | 315 | 690 |
| 547 | Frontotemporal lobar degeneration | 2 | 14 | 77 | 173 |
| 550 | Neuroimmunology | 2 | 13 | 206 | 521 |
| 550 | eugenics | 1 | 13 | 140 | 262 |
| 552 | Cochlear Implants | 3 | 12 | 34 | 98 |
| 552 | hospice care | 2 | 12 | 227 | 513 |
| 552 | speech therapy | 2 | 12 | 86 | 205 |
| 552 | Wound healing | 1 | 12 | 11 | 33 |
| 552 | wound care | 1 | 12 | 11 | 33 |
| 552 | Fibrosis | 1 | 12 | 11 | 33 |
| 552 | Communication Disorders | 2 | 12 | 69 | 165 |
| 552 | Prisons | 1 | 12 | 32 | 40 |
| 552 | Women's health | 1 | 12 | 673 | 884 |
| 561 | Oxidative stress | 1 | 11 | 330 | 530 |
| 561 | Nutritional support | 1 | 11 | 81 | 144 |
| 561 | Feasibility studies | 1 | 11 | 188 | 209 |
| 561 | blood substitutes | 1 | 11 | 16 | 28 |
| 561 | Cell survival | 1 | 11 | 60 | 137 |
| 561 | artificial cells | 1 | 11 | 28 | 33 |
| 561 | Australia | 2 | 11 | 344 | 559 |
| 561 | Speech | 2 | 11 | 130 | 324 |
| 561 | molecular chaperones | 1 | 11 | 60 | 137 |
| 570 | Computer Science | 1 | 10 | 309 | 437 |
| 570 | Neonatology | 1 | 10 | 351 | 546 |
| 570 | Bioremediation | 1 | 10 | 4 | 20 |
| 570 | Water quality | 1 | 10 | 2 | 2 |
| 570 | Water chemistry | 1 | 10 | 2 | 2 |
| 570 | alcoholism | 2 | 10 | 406 | 852 |
| 570 | Human biology | 1 | 10 | 120 | 213 |
| 570 | Pollution | 1 | 10 | 459 | 647 |
| 578 | Pediatric Endocrinology | 4 | 9 | 115 | 367 |
| 578 | Community Psychiatry | 1 | 9 | 516 | 679 |
| 578 | Mental Health | 1 | 9 | 650 | 917 |
| 578 | Operations Research | 1 | 9 | 30 | 67 |
| 578 | Radiation | 3 | 9 | 211 | 538 |
| 578 | Smoking | 1 | 9 | 221 | 406 |
| 578 | orphan drugs | 3 | 9 | 12 | 40 |
| 578 | animals | 2 | 9 | 46 | 121 |
| 578 | Metabolic disorders in children | 4 | 9 | 93 | 333 |
| 578 | drug addiction | 1 | 9 | 422 | 653 |
| 578 | Psychiatric Epidemiology | 1 | 9 | 236 | 433 |
| 578 | health planning | 3 | 9 | 168 | 547 |
| 590 | Veterinary Pathology | 1 | 8 | 10 | 25 |
| 590 | Geriatric Psychiatry | 3 | 8 | 291 | 867 |
| 590 | Animal breeding | 1 | 8 | 32 | 67 |
| 590 | histological techniques | 2 | 8 | 251 | 639 |
| 590 | Breeding | 1 | 8 | 55 | 109 |
| 590 | motor skills | 1 | 8 | 15 | 53 |
| 596 | Education | 2 | 7 | 248 | 556 |
| 596 | Risk Management | 1 | 7 | 96 | 129 |
| 596 | Nanostructured Materials | 1 | 7 | 239 | 386 |
| 596 | Evidence-Based Medicine | 1 | 7 | 394 | 532 |
| 596 | Memory disorders | 1 | 7 | 13 | 35 |
| 596 | Nanoparticles | 1 | 7 | 199 | 320 |
| 596 | Microscopy | 1 | 7 | 161 | 272 |
| 603 | Clinical Laboratory Science | 3 | 6 | 109 | 385 |
| 603 | Optics | 3 | 6 | 199 | 350 |
| 603 | Radiation Oncology | 1 | 6 | 339 | 593 |
| 603 | Photography | 3 | 6 | 136 | 164 |
| 603 | Systems Analysis | 2 | 6 | 24 | 108 |
| 603 | Histochemistry | 1 | 6 | 414 | 663 |
| 603 | Pharmacogenomics | 1 | 6 | 171 | 373 |
| 603 | Altitude Sickness | 1 | 6 | 72 | 150 |
| 603 | Mobile genetic elements | 1 | 6 | 11 | 22 |
| 603 | Amyloidosis | 1 | 6 | 91 | 194 |
| 603 | Altitude | 1 | 6 | 72 | 150 |
| 614 | Nuclear Engineering | 1 | 5 | 79 | 120 |
| 614 | Linguistics | 1 | 5 | 87 | 172 |
| 614 | Psychoneuroimmunology | 1 | 5 | 275 | 520 |
| 614 | Applied Linguistics | 1 | 5 | 36 | 70 |
| 614 | Phonetics | 1 | 5 | 34 | 73 |
| 614 | Cognitive Science | 1 | 5 | 162 | 320 |
| 614 | Preoperative Care | 1 | 5 | 97 | 205 |
| 614 | Enzyme inhibitors | 1 | 5 | 31 | 107 |
| 614 | perioperative care | 1 | 5 | 96 | 204 |
| 614 | animal diseases | 1 | 5 | 36 | 84 |
| 624 | Occupational Therapy | 2 | 4 | 242 | 621 |
| 624 | kidney | 1 | 4 | 59 | 105 |
| 624 | Stress | 1 | 4 | 49 | 136 |
| 624 | magnetic resonance | 1 | 4 | 18 | 32 |
| 628 | Computer Graphics | 1 | 3 | 73 | 167 |
| 628 | Melanoma | 1 | 3 | 91 | 202 |
| 628 | cosmic rays | 1 | 3 | 49 | 104 |
| 628 | Health promotion | 1 | 3 | 340 | 620 |
| 628 | science publishing | 1 | 3 | 1 | 1 |
| 628 | Developing countries | 1 | 3 | 261 | 476 |
| 634 | Sociology | 1 | 2 | 378 | 729 |
| 634 | Information Technology | 1 | 2 | 201 | 423 |
| 634 | Software Engineering | 1 | 2 | 1 | 17 |
| 634 | Criminology | 1 | 2 | 68 | 136 |
| 634 | Nursing | 1 | 2 | 893 | 1435 |
| 634 | Database Management | 1 | 2 | 10 | 24 |
| 634 | Manufacturing Processes | 1 | 2 | 18 | 66 |
| 634 | Product Design | 1 | 2 | 6 | 16 |
| 634 | Production Engineering | 1 | 2 | 21 | 73 |
| 634 | Quantum electronics | 1 | 2 | 26 | 80 |
| 634 | Educational Technology | 1 | 2 | 204 | 420 |
| 634 | stem cell transplantation | 2 | 2 | 43 | 110 |
| 634 | Medical Anthropology | 1 | 2 | 276 | 562 |
| 634 | Behavioral research | 1 | 2 | 137 | 350 |
| 634 | Atherosclerosis | 1 | 2 | 129 | 265 |
| 634 | Hearing Aids | 1 | 2 | 78 | 147 |
| 634 | Cardiopulmonary Resuscitation | 1 | 2 | 150 | 299 |
| 634 | Plastics | 1 | 2 | 33 | 116 |
| 634 | cardiac arrest | 1 | 2 | 150 | 299 |
| 634 | nucleotides | 1 | 2 | 43 | 99 |
| 634 | Africa | 1 | 2 | 142 | 284 |
| 655 | Machine Learning | 1 | 1 | 2 | 12 |
| 655 | Dynamics | 1 | 1 | 8 | 41 |
| 655 | Statistical Mechanics | 1 | 1 | 2 | 6 |
| 655 | Speech Perception | 1 | 1 | 8 | 38 |
| 655 | auditory perception | 1 | 1 | 13 | 46 |
| 655 | Radiotherapy | 3 | 1 | 220 | 435 |
| 655 | Oxygen therapy | 1 | 1 | 6 | 18 |
| 655 | Diving | 1 | 1 | 6 | 18 |
| 655 | Environmental pollutants | 1 | 1 | 384 | 656 |
| 655 | feeding behavior | 1 | 1 | 159 | 339 |
| 655 | Communication | 1 | 1 | 146 | 348 |
| 655 | Telecommunication | 1 | 1 | 14 | 79 |
| 655 | Oral communication | 1 | 1 | 21 | 81 |
| 655 | Communication in politics | 1 | 1 | 6 | 27 |
| 655 | China | 1 | 1 | 455 | 745 |
| 655 | extraterrestrial environment | 1 | 1 | 19 | 57 |
| 655 | drug toxicity | 1 | 1 | 69 | 206 |
| 655 | astronomical phenomena | 1 | 1 | 12 | 42 |
| 655 | Appetite | 1 | 1 | 122 | 278 |
| 674 | Organic Chemistry | 1 | 0 | 295 | 540 |
| 674 | Music | 1 | 0 | 251 | 445 |
| 674 | voice | 1 | 0 | 253 | 453 |
| 674 | Bioorganic chemistry | 1 | 0 | 349 | 595 |
| 674 | Mechanics | 1 | 0 | 10 | 33 |
| 674 | Social support | 1 | 0 | 83 | 233 |
| 674 | Social environment | 1 | 0 | 84 | 235 |
| 674 | venom | 1 | 0 | 151 | 336 |
| 674 | Toxins | 1 | 0 | 158 | 350 |