| 1 | Neurology | 6,674 | 468.9K | 7 | 11 |
| 2 | Medicine | 4,747 | 417.9K | 32 | 23 |
| 3 | Science | 1,910 | 188.4K | 157 | 154 |
| 4 | Hematology | 4,062 | 186.5K | 4 | 8 |
| 5 | Molecular Biology | 1,895 | 172.9K | 90 | 62 |
| 6 | Biology | 2,301 | 166.3K | 117 | 174 |
| 7 | Endocrinology | 1,897 | 161.6K | 6 | 4 |
| 8 | Surgery | 1,043 | 158.6K | 4 | 5 |
| 9 | Biochemistry | 2,923 | 152.1K | 94 | 84 |
| 10 | Metabolism | 1,454 | 141.1K | 5 | 4 |
| 11 | Metabolic diseases | 1,305 | 129.3K | 5 | 4 |
| 12 | Physics | 731 | 127.3K | 548 | 245 |
| 13 | Liver diseases | 1,073 | 123.5K | 1 | 1 |
| 14 | Cardiovascular system | 1,243 | 121.6K | 4 | 3 |
| 15 | Human genetics | 532 | 116.0K | 40 | 47 |
| 16 | Hypertension | 1,141 | 109.3K | 3 | 3 |
| 17 | Urology | 2,204 | 99.7K | 2 | 1 |
| 18 | Nervous system | 769 | 95.6K | 11 | 7 |
| 19 | Medical genetics | 1,145 | 88.0K | 20 | 24 |
| 20 | Alzheimer's disease | 1,139 | 86.1K | 4 | 1 |
| 21 | Natural history | 165 | 85.6K | 327 | 171 |
| 22 | Pediatric Neurology | 473 | 85.3K | 7 | 3 |
| 23 | Dementia | 1,057 | 81.9K | 4 | 1 |
| 24 | Cell Biology | 693 | 80.9K | 107 | 101 |
| 25 | Cytology | 638 | 80.2K | 143 | 106 |
| 26 | Research | 1,749 | 71.6K | 99 | 97 |
| 27 | Cancer | 1,228 | 69.0K | 18 | 25 |
| 28 | Microbiology | 881 | 62.7K | 162 | 135 |
| 29 | Dermatology | 1,306 | 59.2K | 3 | 2 |
| 30 | Orthopedics | 1,120 | 59.0K | 1 | 1 |
| 31 | Genetics | 618 | 59.0K | 90 | 84 |
| 32 | Physiology | 1,204 | 58.6K | 37 | 41 |
| 33 | Leukemia | 687 | 57.4K | 4 | 1 |
| 34 | Biophysics | 1,568 | 52.3K | 43 | 53 |
| 35 | Pathology | 990 | 51.6K | 10 | 6 |
| 36 | Medical Oncology | 1,089 | 51.1K | 5 | 7 |
| 37 | Virology | 327 | 47.6K | 149 | 115 |
| 38 | Epidemiology | 474 | 46.1K | 82 | 40 |
| 39 | Chemistry | 667 | 44.9K | 600 | 439 |
| 40 | Transplantation | 763 | 43.7K | 6 | 8 |
| 41 | Immunology | 833 | 43.7K | 53 | 89 |
| 42 | Radiobiology | 804 | 43.4K | 8 | 8 |
| 43 | Pharmacology | 834 | 43.1K | 117 | 62 |
| 44 | Oncology | 657 | 41.6K | 9 | 18 |
| 45 | Nutrition | 959 | 38.6K | 13 | 22 |
| 46 | Neurobiology | 465 | 36.0K | 22 | 26 |
| 47 | Neurophysiology | 417 | 33.5K | 109 | 91 |
| 48 | Neurons | 79 | 32.3K | 72 | 36 |
| 49 | Psychiatry | 582 | 31.7K | 129 | 117 |
| 50 | Pharmaceutical Chemistry | 655 | 30.7K | 35 | 39 |
| 51 | Clinical Chemistry | 744 | 30.3K | 8 | 18 |
| 52 | Medical Physics | 922 | 28.3K | 11 | 12 |
| 53 | arthritis | 395 | 28.2K | 13 | 12 |
| 54 | Public Health | 626 | 27.9K | 146 | 143 |
| 55 | Diabetes mellitus | 376 | 27.2K | 28 | 28 |
| 56 | Pediatrics | 626 | 27.2K | 58 | 69 |
| 57 | Sleep | 468 | 27.1K | 13 | 9 |
| 58 | Diabetes | 390 | 27.0K | 34 | 33 |
| 59 | Critical Care | 379 | 26.8K | 14 | 18 |
| 60 | Critical Care Medicine | 361 | 26.7K | 18 | 18 |
| 61 | Ophthalmology | 591 | 26.6K | 18 | 20 |
| 62 | medical education | 534 | 26.3K | 11 | 6 |
| 63 | Diagnostic microbiology | 407 | 26.2K | 7 | 11 |
| 64 | Sleep Disorders | 463 | 25.9K | 13 | 9 |
| 65 | Chronic diseases | 154 | 25.1K | 20 | 18 |
| 66 | Therapeutics | 369 | 23.4K | 18 | 17 |
| 67 | Cytogenetics | 207 | 22.4K | 48 | 47 |
| 68 | Rheumatology | 330 | 21.8K | 9 | 10 |
| 69 | Obstetrics | 645 | 21.7K | 37 | 40 |
| 70 | drug therapy | 435 | 21.5K | 37 | 26 |
| 71 | Respiration | 511 | 21.3K | 7 | 11 |
| 72 | Immunity | 161 | 21.2K | 134 | 120 |
| 73 | Aging | 455 | 20.5K | 55 | 46 |
| 74 | Environment | 397 | 20.1K | 185 | 288 |
| 75 | diseases | 43 | 19.4K | 11 | 10 |
| 76 | Disease | 41 | 18.9K | 8 | 8 |
| 77 | Oncogenes | 177 | 18.5K | 33 | 22 |
| 78 | rehabilitation | 488 | 17.9K | 17 | 20 |
| 79 | Radiography | 411 | 17.7K | 5 | 12 |
| 80 | Digestive system diseases | 533 | 17.5K | 1 | 1 |
| 81 | Genetic engineering | 120 | 17.3K | 112 | 15 |
| 82 | Muscles | 391 | 17.1K | 1 | 1 |
| 83 | Biomedical Engineering | 427 | 16.3K | 138 | 134 |
| 84 | Genomics | 355 | 16.0K | 66 | 67 |
| 85 | Heart Failure | 261 | 15.9K | 4 | 3 |
| 86 | Physical Therapy | 443 | 15.8K | 6 | 14 |
| 87 | Neuromuscular diseases | 378 | 15.8K | 1 | 1 |
| 88 | Geriatrics | 424 | 15.5K | 85 | 75 |
| 89 | Radiology | 546 | 15.0K | 3 | 4 |
| 90 | Recombinant DNA | 83 | 15.0K | 76 | 5 |
| 91 | Brain | 318 | 14.9K | 115 | 128 |
| 92 | Molecular cloning | 76 | 14.4K | 66 | 5 |
| 93 | Genetic recombination | 74 | 14.4K | 65 | 5 |
| 94 | Obesity | 271 | 14.2K | 55 | 50 |
| 95 | Kidney diseases | 234 | 13.8K | 9 | 4 |
| 96 | Biocompatible Materials | 226 | 13.2K | 310 | 274 |
| 97 | Allergy | 255 | 13.2K | 26 | 83 |
| 98 | Nephrology | 195 | 13.1K | 9 | 3 |
| 99 | Medical Microbiology | 161 | 12.7K | 130 | 88 |
| 100 | Parenteral nutrition | 244 | 12.4K | 2 | 17 |
| 101 | Biotechnology | 155 | 12.1K | 664 | 454 |
| 102 | cell physiology | 174 | 12.1K | 59 | 54 |
| 102 | transport vesicles | 18 | 12.1K | 30 | 63 |
| 104 | Genetic therapy | 275 | 11.9K | 9 | 14 |
| 105 | Orthopedic Surgery | 249 | 11.9K | 2 | 1 |
| 106 | Mental Disorders | 230 | 11.7K | 154 | 164 |
| 107 | Bones | 135 | 11.6K | 10 | 5 |
| 108 | Medical innovations | 132 | 11.6K | 26 | 36 |
| 109 | drug development | 137 | 11.3K | 27 | 35 |
| 110 | Biomechanics | 194 | 11.2K | 25 | 26 |
| 111 | Bioengineering | 147 | 11.0K | 399 | 346 |
| 112 | Electrophysiology | 412 | 10.9K | 3 | 2 |
| 113 | Neurochemistry | 249 | 10.8K | 103 | 118 |
| 114 | nucleic acids | 140 | 10.0K | 120 | 163 |
| 115 | Sports Medicine | 509 | 10.0K | 19 | 81 |
| 116 | gene therapy | 211 | 10.0K | 14 | 23 |
| 117 | viruses | 177 | 10.0K | 93 | 115 |
| 118 | Attention | 258 | 9.9K | 60 | 52 |
| 119 | Vaccines | 292 | 9.9K | 29 | 35 |
| 120 | Memory | 249 | 9.8K | 69 | 81 |
| 121 | Visual Perception | 247 | 9.7K | 60 | 49 |
| 121 | Perception | 247 | 9.7K | 79 | 72 |
| 123 | gene mapping | 141 | 9.7K | 93 | 100 |
| 124 | Neurosurgery | 232 | 9.7K | 6 | 15 |
| 125 | Clinical Biochemistry | 278 | 9.5K | 4 | 8 |
| 126 | pain | 254 | 9.5K | 32 | 63 |
| 127 | Immunotherapy | 137 | 9.0K | 80 | 104 |
| 128 | Behavior | 231 | 9.0K | 173 | 234 |
| 129 | Hemodynamics | 176 | 8.8K | 5 | 9 |
| 130 | Thrombosis | 168 | 8.8K | 16 | 18 |
| 131 | Pancreatic diseases | 187 | 8.6K | 1 | 2 |
| 132 | Psychophysiology | 127 | 8.5K | 335 | 252 |
| 133 | Emergency Medicine | 373 | 8.4K | 12 | 24 |
| 134 | Cell differentiation | 152 | 8.4K | 110 | 193 |
| 135 | Diagnostic Imaging | 184 | 8.4K | 65 | 55 |
| 136 | Cardiovascular diseases | 299 | 8.3K | 11 | 16 |
| 137 | Enteral nutrition | 131 | 8.1K | 6 | 24 |
| 138 | Stem cells | 217 | 7.9K | 29 | 46 |
| 139 | Primary health care | 339 | 7.8K | 13 | 24 |
| 140 | Cell metabolism | 38 | 7.8K | 57 | 57 |
| 141 | Homeostasis | 34 | 7.8K | 58 | 57 |
| 142 | Immune system | 59 | 7.6K | 114 | 153 |
| 143 | Tropical Medicine | 338 | 7.5K | 8 | 13 |
| 144 | cardiac catheterization | 358 | 7.5K | 1 | 4 |
| 145 | Developmental Biology | 95 | 7.3K | 240 | 229 |
| 146 | fertility | 184 | 7.2K | 29 | 50 |
| 147 | Infertility | 183 | 7.2K | 28 | 49 |
| 148 | Host-parasite interactions | 36 | 7.1K | 251 | 101 |
| 149 | vascular diseases | 94 | 7.1K | 30 | 18 |
| 150 | blood transfusion | 233 | 7.0K | 16 | 16 |
| 151 | Health | 190 | 7.0K | 93 | 89 |
| 152 | United States | 331 | 6.9K | 272 | 361 |
| 153 | Thorax | 179 | 6.8K | 11 | 8 |
| 154 | Lung Transplantation | 161 | 6.8K | 14 | 24 |
| 154 | Heart transplantation | 161 | 6.8K | 14 | 24 |
| 156 | Health Services Research | 108 | 6.8K | 134 | 60 |
| 157 | Chromosome mapping | 108 | 6.8K | 103 | 82 |
| 158 | Health Policy | 136 | 6.7K | 145 | 85 |
| 159 | Biochemical Engineering | 42 | 6.6K | 874 | 443 |
| 159 | Bacterial infections | 27 | 6.6K | 129 | 43 |
| 161 | genome | 116 | 6.5K | 92 | 188 |
| 162 | Nanotechnology | 100 | 6.4K | 939 | 710 |
| 163 | Clinical Immunology | 270 | 6.3K | 13 | 20 |
| 164 | Child | 368 | 6.3K | 54 | 101 |
| 165 | mycoses | 25 | 6.3K | 141 | 43 |
| 166 | Statistics | 127 | 6.2K | 268 | 163 |
| 167 | Psychology | 200 | 6.1K | 418 | 424 |
| 168 | Mental illness | 123 | 6.1K | 146 | 186 |
| 169 | Psychopharmacology | 85 | 6.1K | 167 | 134 |
| 170 | Diet | 104 | 6.0K | 199 | 196 |
| 171 | Pharmacogenetics | 148 | 5.9K | 11 | 22 |
| 172 | Bacteriology | 87 | 5.9K | 223 | 201 |
| 173 | Anatomy | 128 | 5.8K | 135 | 162 |
| 174 | Computational Biology | 157 | 5.8K | 135 | 240 |
| 175 | Ultrasonics | 161 | 5.8K | 13 | 16 |
| 176 | Ultrasound | 134 | 5.6K | 12 | 8 |
| 177 | Toxicology | 123 | 5.6K | 592 | 471 |
| 178 | epilepsy | 181 | 5.5K | 13 | 16 |
| 179 | Neuropsychology | 163 | 5.4K | 141 | 171 |
| 180 | Genetic regulation | 72 | 5.4K | 94 | 117 |
| 181 | General Surgery | 185 | 5.4K | 12 | 7 |
| 182 | Chemotherapy | 161 | 5.2K | 31 | 38 |
| 183 | Gerontology | 189 | 5.2K | 112 | 81 |
| 184 | Smoking | 117 | 5.0K | 43 | 39 |
| 185 | Hormones | 86 | 5.0K | 79 | 51 |
| 186 | Radio | 94 | 5.0K | 178 | 159 |
| 187 | Speech Disorders | 131 | 5.0K | 78 | 54 |
| 188 | Spine | 114 | 4.8K | 23 | 37 |
| 189 | human behavior | 61 | 4.8K | 379 | 298 |
| 190 | Sound | 94 | 4.6K | 43 | 33 |
| 191 | Ferroelectricity | 91 | 4.6K | 64 | 11 |
| 192 | Radio frequency | 89 | 4.6K | 16 | 8 |
| 193 | Immunopathology | 154 | 4.6K | 37 | 66 |
| 194 | Cardiac electrophysiology | 139 | 4.5K | 1 | 1 |
| 194 | arrhythmia | 139 | 4.5K | 1 | 1 |
| 196 | free radicals | 23 | 4.5K | 398 | 115 |
| 197 | Medical Technology | 142 | 4.5K | 17 | 31 |
| 198 | Antioxidants | 17 | 4.4K | 198 | 28 |
| 199 | Otolaryngology | 162 | 4.3K | 15 | 20 |
| 200 | Radiotherapy | 183 | 4.2K | 3 | 3 |
| 201 | Bioinformatics | 146 | 4.2K | 109 | 249 |
| 202 | Education | 87 | 4.2K | 465 | 255 |
| 203 | infection | 98 | 4.1K | 105 | 99 |
| 204 | Women's health | 206 | 4.1K | 19 | 32 |
| 205 | Adolescent | 245 | 4.1K | 77 | 130 |
| 206 | proteins | 105 | 4.0K | 154 | 169 |
| 207 | Psychosomatic Medicine | 184 | 4.0K | 7 | 57 |
| 208 | North America | 104 | 4.0K | 29 | 11 |
| 209 | Quality of life | 66 | 4.0K | 93 | 78 |
| 210 | Molecular structure | 47 | 3.9K | 372 | 200 |
| 211 | Sexual health | 266 | 3.8K | 2 | 17 |
| 212 | Genetic epidemiology | 105 | 3.8K | 11 | 12 |
| 212 | heredity | 105 | 3.8K | 13 | 13 |
| 214 | Medical Laboratory Science | 96 | 3.7K | 158 | 232 |
| 215 | Autoimmunity | 88 | 3.7K | 23 | 41 |
| 216 | Health Education | 135 | 3.7K | 128 | 136 |
| 217 | Neuropsychiatry | 80 | 3.5K | 41 | 34 |
| 218 | Gene expression regulation | 49 | 3.5K | 117 | 135 |
| 219 | locomotion | 54 | 3.5K | 29 | 20 |
| 219 | posture | 54 | 3.5K | 29 | 20 |
| 219 | gait | 54 | 3.5K | 29 | 20 |
| 219 | walking | 54 | 3.5K | 29 | 20 |
| 223 | Embryology | 40 | 3.5K | 365 | 256 |
| 224 | Image Processing | 42 | 3.5K | 506 | 267 |
| 225 | Infections | 68 | 3.4K | 81 | 95 |
| 226 | Anxiety Disorders | 39 | 3.4K | 67 | 49 |
| 226 | Anxiety | 39 | 3.4K | 67 | 50 |
| 228 | Lipids | 59 | 3.4K | 117 | 114 |
| 229 | Histology | 59 | 3.3K | 276 | 190 |
| 230 | Nuclear Medicine | 111 | 3.3K | 66 | 86 |
| 231 | Engineering | 103 | 3.3K | 456 | 314 |
| 232 | drugs | 79 | 3.2K | 205 | 156 |
| 233 | Speech | 74 | 3.2K | 83 | 73 |
| 234 | Cell death | 85 | 3.2K | 96 | 221 |
| 235 | Analytical Biochemistry | 61 | 3.2K | 153 | 101 |
| 236 | Developmental Genetics | 26 | 3.2K | 146 | 137 |
| 237 | Environmental Health | 74 | 3.1K | 971 | 925 |
| 238 | Substance Abuse | 104 | 3.1K | 124 | 114 |
| 239 | Computer Vision | 29 | 3.1K | 256 | 159 |
| 240 | sports injuries | 178 | 3.1K | 1 | 2 |
| 241 | Electronics | 79 | 3.1K | 652 | 449 |
| 241 | Hearing | 98 | 3.1K | 52 | 40 |
| 243 | histological techniques | 44 | 3.1K | 53 | 38 |
| 244 | vitamin C | 2 | 3.0K | 562 | 3 |
| 244 | vitamin E | 2 | 3.0K | 562 | 3 |
| 246 | Lymphoma | 177 | 3.0K | 2 | 2 |
| 247 | health services | 91 | 3.0K | 73 | 64 |
| 248 | Bone diseases | 40 | 3.0K | 23 | 36 |
| 249 | preventive medicine | 105 | 2.9K | 78 | 137 |
| 250 | Parasitic Diseases | 46 | 2.9K | 293 | 168 |
| 251 | United Kingdom | 60 | 2.9K | 222 | 218 |
| 252 | Menopause | 92 | 2.9K | 4 | 5 |
| 253 | psychotherapy | 36 | 2.9K | 288 | 191 |
| 254 | Health Services Administration | 75 | 2.8K | 67 | 61 |
| 255 | Materials | 46 | 2.8K | 1948 | 1354 |
| 256 | Clinical Psychology | 86 | 2.8K | 134 | 196 |
| 257 | alcoholism | 95 | 2.8K | 150 | 189 |
| 258 | Analytical Chemistry | 73 | 2.8K | 965 | 818 |
| 259 | viral genetics | 18 | 2.8K | 113 | 123 |
| 260 | Drug delivery systems | 27 | 2.7K | 352 | 166 |
| 261 | Multiple Myeloma | 167 | 2.7K | 2 | 2 |
| 262 | Information Systems | 70 | 2.6K | 59 | 65 |
| 263 | Health promotion | 115 | 2.6K | 72 | 127 |
| 264 | DNA polymerases | 21 | 2.6K | 101 | 117 |
| 265 | Autoimmune diseases | 72 | 2.6K | 18 | 34 |
| 266 | Carcinogenesis | 59 | 2.5K | 75 | 90 |
| 267 | Research Design | 77 | 2.5K | 100 | 144 |
| 268 | Proteome | 49 | 2.5K | 149 | 159 |
| 269 | Reproduction | 86 | 2.5K | 302 | 332 |
| 270 | Europe | 48 | 2.4K | 647 | 312 |
| 271 | Signal Transduction | 52 | 2.4K | 166 | 228 |
| 272 | liver | 87 | 2.4K | 2 | 1 |
| 273 | Endocrine glands | 21 | 2.4K | 33 | 24 |
| 274 | Antigens | 84 | 2.4K | 38 | 66 |
| 275 | cloning | 41 | 2.4K | 52 | 93 |
| 276 | enzymes | 53 | 2.4K | 182 | 150 |
| 277 | Growth | 17 | 2.4K | 452 | 302 |
| 278 | Autoantibodies | 64 | 2.3K | 20 | 33 |
| 279 | Steroids | 82 | 2.3K | 51 | 69 |
| 280 | counseling | 81 | 2.3K | 145 | 138 |
| 281 | carcinogens | 52 | 2.3K | 86 | 96 |
| 282 | Sports | 159 | 2.2K | 99 | 269 |
| 283 | Biometrics | 69 | 2.2K | 115 | 127 |
| 284 | Amyloidosis | 76 | 2.2K | 5 | 9 |
| 285 | tomography | 87 | 2.2K | 8 | 12 |
| 286 | Patient education | 65 | 2.2K | 34 | 54 |
| 287 | Inflammation | 42 | 2.1K | 103 | 94 |
| 288 | rare diseases | 70 | 2.1K | 15 | 34 |
| 289 | Materials Science | 35 | 2.1K | 1615 | 1122 |
| 290 | risk factors | 88 | 2.1K | 20 | 55 |
| 291 | Child psychology | 43 | 2.1K | 310 | 303 |
| 291 | drug addiction | 64 | 2.1K | 162 | 188 |
| 293 | Minority Health | 2 | 2.0K | 115 | 26 |
| 294 | Antibodies | 66 | 2.0K | 26 | 54 |
| 295 | Language Disorders | 65 | 2.0K | 106 | 82 |
| 296 | Hemostasis | 96 | 2.0K | 17 | 39 |
| 297 | scientific societies | 71 | 2.0K | 40 | 58 |
| 298 | calcification | 45 | 2.0K | 35 | 43 |
| 299 | Oxidation-reduction | 25 | 2.0K | 164 | 147 |
| 300 | Molecular Pharmacology | 47 | 2.0K | 78 | 93 |
| 301 | behavioral medicine | 71 | 1.9K | 124 | 230 |
| 302 | Electroconvulsive therapy | 70 | 1.9K | 1 | 1 |
| 303 | Polymers | 30 | 1.9K | 1765 | 1032 |
| 304 | Medical Ethics | 139 | 1.9K | 45 | 53 |
| 305 | complementary therapies | 92 | 1.9K | 60 | 87 |
| 306 | Nutrition physiology | 38 | 1.9K | 64 | 68 |
| 307 | Molecular Imaging | 27 | 1.9K | 159 | 113 |
| 308 | nanoscience | 30 | 1.9K | 955 | 772 |
| 309 | Child Development | 60 | 1.9K | 315 | 348 |
| 310 | Clinical Trials | 66 | 1.9K | 47 | 43 |
| 311 | Genetic disorders | 58 | 1.9K | 34 | 47 |
| 312 | Animal Behavior | 22 | 1.9K | 623 | 435 |
| 313 | mutagens | 38 | 1.8K | 110 | 127 |
| 314 | Bioorganic chemistry | 42 | 1.8K | 735 | 576 |
| 315 | Telemedicine | 67 | 1.8K | 6 | 16 |
| 316 | Palliative Care | 120 | 1.8K | 19 | 62 |
| 317 | Audiology | 87 | 1.8K | 62 | 113 |
| 318 | Environmental Toxicology | 14 | 1.8K | 1106 | 453 |
| 319 | Immunochemistry | 54 | 1.8K | 58 | 63 |
| 320 | Geriatric Oncology | 71 | 1.7K | 19 | 38 |
| 321 | health planning | 25 | 1.7K | 601 | 175 |
| 322 | Adolescent Medicine | 42 | 1.7K | 85 | 138 |
| 323 | Systems Biology | 59 | 1.7K | 154 | 159 |
| 323 | Randomized Controlled Trials | 60 | 1.7K | 97 | 64 |
| 325 | Alternative Medicine | 79 | 1.7K | 62 | 100 |
| 326 | Long-Term Care | 50 | 1.7K | 47 | 87 |
| 326 | Long-term care facilities | 50 | 1.7K | 46 | 86 |
| 328 | Ethology | 18 | 1.7K | 561 | 390 |
| 329 | Multiple sclerosis | 70 | 1.6K | 17 | 12 |
| 330 | Cost control | 60 | 1.6K | 3 | 2 |
| 331 | Artificial Organs | 119 | 1.6K | 11 | 29 |
| 332 | Pediatric Dermatology | 123 | 1.6K | 7 | 19 |
| 333 | Astrocytes | 20 | 1.6K | 90 | 79 |
| 334 | Hemophilia | 39 | 1.6K | 64 | 45 |
| 335 | Learning | 26 | 1.6K | 350 | 257 |
| 336 | Decision making | 66 | 1.6K | 108 | 201 |
| 337 | Bipolar Disorder | 80 | 1.6K | 19 | 66 |
| 338 | Parkinson's disease | 15 | 1.5K | 44 | 5 |
| 339 | Virulence | 34 | 1.5K | 257 | 382 |
| 340 | biological factors | 51 | 1.5K | 221 | 296 |
| 341 | Organic Chemistry | 43 | 1.5K | 926 | 778 |
| 342 | Functional Genomics | 22 | 1.5K | 35 | 24 |
| 343 | Membranes | 52 | 1.5K | 307 | 460 |
| 344 | Communication | 28 | 1.5K | 522 | 383 |
| 345 | behavior therapy | 48 | 1.5K | 139 | 157 |
| 346 | Immunogenetics | 58 | 1.4K | 43 | 69 |
| 347 | protein | 41 | 1.4K | 211 | 252 |
| 348 | Clinical Pharmacology | 41 | 1.4K | 240 | 193 |
| 349 | Industrial Microbiology | 10 | 1.4K | 1054 | 412 |
| 350 | Hospitals | 118 | 1.4K | 21 | 42 |
| 351 | Endocrine system | 273 | 1.4K | 5 | 8 |
| 352 | Data Mining | 31 | 1.4K | 271 | 299 |
| 353 | Mathematics | 52 | 1.4K | 1727 | 1046 |
| 354 | Electrophoresis | 35 | 1.4K | 301 | 212 |
| 355 | Exercise | 58 | 1.4K | 128 | 169 |
| 356 | Mass Spectrometry | 44 | 1.4K | 177 | 196 |
| 357 | Sarcopenia | 13 | 1.4K | 89 | 36 |
| 358 | Biopharmaceutics | 44 | 1.4K | 112 | 168 |
| 359 | Magnetic Resonance Imaging | 53 | 1.3K | 35 | 61 |
| 360 | older people | 141 | 1.3K | 115 | 184 |
| 361 | Histochemistry | 34 | 1.3K | 139 | 112 |
| 362 | Histocompatibility Testing | 62 | 1.2K | 12 | 30 |
| 362 | data collection | 18 | 1.2K | 260 | 246 |
| 364 | Respiratory system | 56 | 1.2K | 29 | 64 |
| 365 | Optics | 164 | 1.2K | 578 | 1025 |
| 366 | Ecology | 25 | 1.2K | 2548 | 2397 |
| 367 | child behavior | 16 | 1.2K | 110 | 69 |
| 368 | Radiation Oncology | 42 | 1.2K | 13 | 22 |
| 369 | Gastrointestinal diseases | 69 | 1.2K | 8 | 23 |
| 370 | sex differences | 27 | 1.2K | 2 | 5 |
| 371 | Ultrasonic Imaging | 73 | 1.2K | 8 | 26 |
| 372 | hospice care | 76 | 1.2K | 3 | 11 |
| 373 | Nursing | 57 | 1.2K | 234 | 200 |
| 374 | Familial diseases | 34 | 1.1K | 15 | 7 |
| 375 | Information Science | 32 | 1.1K | 567 | 547 |
| 376 | Pharmacy | 39 | 1.1K | 468 | 479 |
| 377 | Drug design | 41 | 1.1K | 183 | 303 |
| 378 | Osteoporosis | 25 | 1.1K | 24 | 26 |
| 379 | miniaturization | 11 | 1.1K | 1006 | 676 |
| 380 | Flow cytometry | 37 | 1.1K | 19 | 30 |
| 381 | Bioethics | 101 | 1.0K | 44 | 86 |
| 381 | Cognition | 22 | 1.0K | 593 | 468 |
| 383 | Brachytherapy | 49 | 1.0K | 12 | 17 |
| 384 | Pharmacogenomics | 30 | 1.0K | 10 | 14 |
| 385 | Microbial Ecology | 12 | 1.0K | 1163 | 904 |
| 386 | Computer Science | 42 | 1.0K | 270 | 218 |
| 387 | Neurogenetics | 34 | 999 | 10 | 15 |
| 388 | personality | 8 | 994 | 832 | 480 |
| 389 | Oxidative stress | 18 | 979 | 177 | 230 |
| 390 | Microorganisms | 12 | 964 | 439 | 338 |
| 390 | cell interaction | 31 | 964 | 158 | 230 |
| 392 | Pituitary gland | 37 | 963 | 9 | 17 |
| 393 | Electrocardiography | 60 | 948 | 12 | 13 |
| 393 | Neuroimmunology | 20 | 948 | 162 | 196 |
| 395 | Eating Disorders | 45 | 947 | 121 | 191 |
| 396 | Travel | 43 | 942 | 77 | 93 |
| 397 | Microelectronics | 5 | 938 | 1522 | 639 |
| 398 | Ethics | 26 | 930 | 181 | 88 |
| 399 | Erectile dysfunction | 60 | 925 | 1 | 20 |
| 400 | child abuse | 21 | 920 | 222 | 207 |
| 401 | brain mapping | 23 | 912 | 177 | 235 |
| 402 | Health insurance | 31 | 908 | 85 | 126 |
| 403 | Brain damage | 31 | 907 | 38 | 58 |
| 404 | biomedicine | 28 | 899 | 54 | 52 |
| 405 | Sociology | 24 | 895 | 886 | 732 |
| 406 | X-rays | 42 | 894 | 49 | 37 |
| 407 | cytokines | 17 | 892 | 400 | 294 |
| 408 | Physical fitness | 35 | 883 | 142 | 229 |
| 408 | anesthesia | 93 | 883 | 5 | 10 |
| 410 | Neuropharmacology | 26 | 882 | 81 | 89 |
| 411 | Psychoneuroimmunology | 17 | 881 | 154 | 181 |
| 412 | Proteomics | 29 | 872 | 206 | 319 |
| 413 | Feeding and Eating Disorders | 37 | 848 | 139 | 200 |
| 414 | Genes | 18 | 843 | 331 | 219 |
| 415 | Dentistry | 50 | 842 | 85 | 91 |
| 416 | Psycholinguistics | 22 | 837 | 256 | 275 |
| 416 | Fluorescence spectroscopy | 19 | 837 | 34 | 18 |
| 416 | Molecular Spectroscopy | 19 | 837 | 603 | 312 |
| 419 | Vaccination | 21 | 826 | 23 | 24 |
| 420 | Neurolinguistics | 20 | 818 | 93 | 115 |
| 421 | Cerebral cortex | 22 | 810 | 278 | 340 |
| 422 | Genetic Counseling | 49 | 806 | 17 | 26 |
| 423 | Mycology | 33 | 803 | 361 | 474 |
| 424 | language | 19 | 802 | 231 | 216 |
| 425 | chronic disease | 25 | 801 | 56 | 62 |
| 426 | Spectrum analysis | 28 | 800 | 1668 | 1583 |
| 427 | China | 16 | 798 | 1286 | 667 |
| 428 | Organ transplantation | 62 | 793 | 27 | 37 |
| 429 | Molecular Genetics | 28 | 781 | 509 | 709 |
| 430 | Geriatric Psychiatry | 25 | 778 | 226 | 221 |
| 431 | Nanostructures | 7 | 777 | 1377 | 704 |
| 432 | Chromosomes | 17 | 774 | 318 | 283 |
| 433 | healthcare disparities | 38 | 770 | 45 | 59 |
| 434 | Environmental Microbiology | 8 | 768 | 796 | 537 |
| 435 | Neurotoxicology | 11 | 766 | 184 | 97 |
| 436 | soil microbiology | 7 | 765 | 965 | 654 |
| 437 | Parasitology | 24 | 761 | 762 | 616 |
| 438 | Safety management | 44 | 758 | 15 | 22 |
| 439 | Nutritional support | 19 | 751 | 16 | 29 |
| 440 | Drug discovery | 14 | 742 | 47 | 32 |
| 441 | Medical Imaging | 35 | 741 | 48 | 71 |
| 442 | Microcirculation | 16 | 739 | 114 | 76 |
| 443 | software | 24 | 737 | 183 | 225 |
| 444 | Evidence-Based Medicine | 117 | 732 | 12 | 85 |
| 445 | Developing countries | 19 | 729 | 778 | 587 |
| 446 | DNA repair | 9 | 722 | 117 | 63 |
| 447 | Diagnosis | 53 | 721 | 16 | 28 |
| 448 | Metastasis | 16 | 716 | 18 | 74 |
| 449 | Communication in medicine | 21 | 712 | 115 | 112 |
| 450 | Nuclear Engineering | 16 | 709 | 751 | 349 |
| 451 | Precision medicine | 44 | 708 | 5 | 17 |
| 452 | DNS | 13 | 704 | 139 | 72 |
| 453 | Phonetics | 9 | 690 | 144 | 70 |
| 454 | DNA | 14 | 687 | 153 | 55 |
| 455 | behavior modification | 12 | 677 | 179 | 165 |
| 456 | Amyotrophic Lateral Sclerosis | 32 | 676 | 22 | 56 |
| 457 | Cognitive neuroscience | 9 | 671 | 540 | 456 |
| 458 | Depression | 14 | 657 | 100 | 162 |
| 459 | Industrial Safety | 37 | 656 | 150 | 245 |
| 460 | Immunopharmacology | 17 | 655 | 336 | 251 |
| 461 | Laser therapy | 44 | 651 | 25 | 27 |
| 462 | Linguistics | 14 | 646 | 506 | 288 |
| 463 | Nanobiotechnology | 8 | 644 | 181 | 134 |
| 464 | optical instruments | 21 | 631 | 106 | 114 |
| 465 | Hematopoietic stem cell transplantation | 23 | 628 | 43 | 101 |
| 466 | Photography | 143 | 627 | 166 | 142 |
| 467 | Neurotransmitters | 55 | 626 | 37 | 107 |
| 468 | Biosensors | 18 | 619 | 457 | 658 |
| 469 | Holistic Health | 34 | 616 | 19 | 40 |
| 470 | Global Health | 33 | 608 | 170 | 172 |
| 470 | Lipid metabolism | 11 | 608 | 131 | 126 |
| 470 | Lipid | 11 | 608 | 136 | 130 |
| 473 | Cardiac rehabilitation | 21 | 604 | 2 | 7 |
| 474 | dietary supplements | 14 | 595 | 233 | 174 |
| 475 | Applied Linguistics | 8 | 594 | 259 | 96 |
| 476 | Pharmacokinetics | 20 | 584 | 188 | 249 |
| 477 | Occupational Therapy | 38 | 578 | 146 | 120 |
| 478 | Operations Research | 12 | 575 | 1105 | 764 |
| 479 | Schizophrenia | 19 | 560 | 392 | 493 |
| 480 | Radiation | 24 | 554 | 691 | 627 |
| 480 | biochemical markers | 27 | 554 | 45 | 66 |
| 482 | Healing | 28 | 553 | 4 | 4 |
| 482 | nuclear magnetic resonance | 32 | 553 | 286 | 360 |
| 484 | Pediatric Hematology | 41 | 550 | 19 | 28 |
| 485 | gastrointestinal tract | 12 | 539 | 78 | 113 |
| 486 | Plant genetic engineering | 6 | 537 | 640 | 404 |
| 487 | preimplantation genetic diagnosis | 24 | 534 | 72 | 82 |
| 487 | embryo transfer | 25 | 534 | 76 | 89 |
| 489 | Genetic translocation | 13 | 533 | 23 | 36 |
| 489 | plasmids | 13 | 533 | 23 | 36 |
| 491 | Asthma | 43 | 527 | 49 | 132 |
| 492 | visualization | 101 | 526 | 105 | 287 |
| 493 | animals | 6 | 524 | 909 | 273 |
| 493 | Social work | 11 | 524 | 675 | 346 |
| 495 | Bioelectronics | 13 | 519 | 467 | 652 |
| 496 | Environmental monitoring | 12 | 515 | 2138 | 1992 |
| 497 | Magnetic Resonance Spectroscopy | 29 | 514 | 320 | 380 |
| 498 | drug abuse | 16 | 511 | 219 | 163 |
| 499 | Blood vessels | 16 | 509 | 68 | 74 |
| 500 | Social Sciences | 17 | 505 | 1322 | 904 |
| 501 | Dietetics | 24 | 497 | 181 | 213 |
| 502 | Extracellular matrix | 5 | 496 | 173 | 127 |
| 502 | collagen | 5 | 496 | 181 | 134 |
| 504 | primary prevention | 16 | 489 | 105 | 85 |
| 505 | Mental Health Services | 33 | 488 | 271 | 392 |
| 506 | Medical Anthropology | 15 | 485 | 465 | 616 |
| 506 | Hearing Aids | 42 | 485 | 15 | 39 |
| 508 | Behavioral Genetics | 3 | 483 | 225 | 88 |
| 509 | Child welfare | 11 | 479 | 469 | 299 |
| 510 | environmental exposure | 26 | 472 | 461 | 791 |
| 511 | Chemical analysis | 13 | 468 | 471 | 418 |
| 512 | DNA methylation | 15 | 467 | 45 | 99 |
| 512 | sex crimes | 9 | 467 | 303 | 160 |
| 514 | Sports Psychology | 1 | 464 | 213 | 42 |
| 515 | health behavior | 32 | 462 | 200 | 341 |
| 516 | Teaching | 38 | 458 | 303 | 503 |
| 516 | feeding behavior | 13 | 458 | 269 | 296 |
| 518 | drug evaluation | 24 | 457 | 308 | 431 |
| 519 | Ergonomics | 74 | 455 | 107 | 302 |
| 520 | Atherosclerosis | 24 | 451 | 16 | 44 |
| 521 | Nanoparticles | 10 | 450 | 1077 | 871 |
| 522 | Botany | 8 | 446 | 2548 | 2006 |
| 522 | Signal Processing | 13 | 446 | 1378 | 1244 |
| 524 | polymerization | 9 | 445 | 2551 | 1811 |
| 525 | cell membrane | 9 | 443 | 302 | 293 |
| 526 | Emergency Medical Services | 35 | 438 | 72 | 129 |
| 527 | Personality Assessment | 16 | 434 | 169 | 269 |
| 528 | mutation | 10 | 429 | 258 | 293 |
| 529 | Electron Microscopy | 8 | 423 | 192 | 62 |
| 530 | Adolescent Psychology | 25 | 420 | 194 | 366 |
| 530 | Technology | 18 | 420 | 1719 | 1737 |
| 532 | Neurovirology | 10 | 417 | 99 | 79 |
| 533 | Disease management | 35 | 412 | 4 | 6 |
| 534 | violence | 11 | 410 | 438 | 391 |
| 535 | Frontotemporal lobar degeneration | 23 | 406 | 24 | 61 |
| 536 | Pharmacognosy | 11 | 405 | 932 | 902 |
| 537 | voice | 46 | 403 | 29 | 115 |
| 537 | children | 5 | 403 | 326 | 187 |
| 539 | Radioisotopes | 30 | 402 | 243 | 268 |
| 540 | Immunohistochemistry | 17 | 401 | 21 | 19 |
| 541 | Molecular Microbiology | 8 | 400 | 506 | 599 |
| 541 | Music | 45 | 400 | 86 | 189 |
| 541 | Asia | 26 | 400 | 758 | 764 |
| 544 | Developmental Disabilities | 13 | 395 | 421 | 508 |
| 544 | plant molecular biology | 3 | 395 | 1529 | 1019 |
| 546 | Nanostructured Materials | 12 | 393 | 1714 | 1661 |
| 546 | Quality Assurance | 15 | 393 | 60 | 50 |
| 546 | cell movement | 8 | 393 | 96 | 95 |
| 546 | Longevity | 4 | 393 | 130 | 39 |
| 550 | Cell communication | 10 | 391 | 197 | 273 |
| 551 | rejuvenation | 2 | 390 | 179 | 33 |
| 552 | Occupational Health | 17 | 388 | 310 | 316 |
| 553 | Microscopy | 28 | 385 | 261 | 474 |
| 554 | Cytoskeleton | 9 | 382 | 111 | 102 |
| 554 | Elderly | 103 | 382 | 116 | 250 |
| 556 | Mental Health | 30 | 380 | 382 | 595 |
| 557 | Chromatographic analysis | 21 | 379 | 633 | 683 |
| 558 | Semantics | 20 | 374 | 15 | 44 |
| 559 | Cell survival | 7 | 365 | 69 | 56 |
| 559 | peptides | 11 | 365 | 309 | 176 |
| 559 | molecular chaperones | 7 | 365 | 83 | 56 |
| 562 | Pharmaceutical Technology | 18 | 360 | 530 | 719 |
| 562 | Culture techniques | 18 | 360 | 67 | 98 |
| 564 | Cognitive Therapy | 14 | 355 | 216 | 250 |
| 565 | Developmental Psychology | 2 | 353 | 1195 | 509 |
| 566 | Retina | 3 | 351 | 171 | 222 |
| 566 | eye | 3 | 351 | 207 | 226 |
| 568 | pain management | 35 | 350 | 64 | 217 |
| 569 | gene transfer | 17 | 349 | 31 | 65 |
| 569 | genetic transformation | 17 | 349 | 31 | 65 |
| 571 | Medicinal plants | 9 | 348 | 732 | 755 |
| 572 | Coronary heart disease | 24 | 347 | 14 | 11 |
| 573 | transgenic organisms | 4 | 343 | 207 | 90 |
| 573 | transgenic animals | 4 | 343 | 196 | 84 |
| 573 | Transgenic plants | 4 | 343 | 406 | 226 |
| 576 | Human-Computer Interaction | 8 | 342 | 911 | 688 |
| 576 | RNA | 7 | 342 | 310 | 306 |
| 578 | Humanities | 14 | 341 | 598 | 304 |
| 579 | Parasites | 12 | 339 | 765 | 689 |
| 580 | Growth factors | 5 | 337 | 180 | 206 |
| 581 | industrial hygiene | 15 | 336 | 314 | 197 |
| 582 | Biomarkers | 18 | 335 | 47 | 74 |
| 583 | Statistical physics | 9 | 334 | 2080 | 1690 |
| 584 | Production Management | 9 | 329 | 608 | 767 |
| 585 | Personality Disorders | 5 | 314 | 191 | 128 |
| 586 | Mitochondria | 8 | 307 | 81 | 117 |
| 587 | Atomic spectroscopy | 7 | 303 | 758 | 445 |
| 588 | Optical materials | 5 | 300 | 2153 | 1703 |
| 589 | glycoproteins | 9 | 295 | 214 | 262 |
| 589 | Glycoconjugates | 9 | 295 | 214 | 262 |
| 589 | glycolipids | 9 | 295 | 214 | 262 |
| 592 | Neuroanatomy | 3 | 294 | 206 | 72 |
| 593 | Antiviral agents | 6 | 285 | 201 | 140 |
| 594 | Information Retrieval | 1 | 284 | 915 | 232 |
| 595 | Chromatography | 14 | 283 | 702 | 745 |
| 596 | Australia | 6 | 282 | 1386 | 764 |
| 597 | acupuncture | 24 | 278 | 34 | 9 |
| 598 | disabilities | 7 | 271 | 448 | 332 |
| 599 | Composite Materials | 1 | 270 | 3699 | 1837 |
| 600 | Food | 9 | 266 | 1893 | 1972 |
| 601 | rural health | 14 | 265 | 52 | 65 |
| 602 | sexual behavior | 15 | 263 | 202 | 329 |
| 603 | Bioenergetics | 7 | 256 | 500 | 532 |
| 604 | Plant physiology | 2 | 255 | 2381 | 1522 |
| 605 | Cardiovascular Pharmacology | 12 | 254 | 59 | 97 |
| 605 | Antibacterial agents | 14 | 254 | 197 | 432 |
| 607 | Cerebrospinal fluid | 6 | 253 | 63 | 53 |
| 608 | Plants | 2 | 252 | 2430 | 1390 |
| 609 | Bioinorganic chemistry | 13 | 251 | 643 | 761 |
| 610 | Cognitive Behavioral Therapy | 9 | 249 | 63 | 71 |
| 610 | Freeze-Drying | 13 | 249 | 80 | 147 |
| 610 | Hypothermia | 13 | 249 | 80 | 147 |
| 610 | Freeze Drying | 13 | 249 | 80 | 147 |
| 614 | Andrology | 22 | 248 | 125 | 303 |
| 615 | plasma | 4 | 247 | 86 | 18 |
| 616 | cell proliferation | 5 | 246 | 259 | 147 |
| 617 | Continuing Education | 47 | 245 | 26 | 83 |
| 618 | Energy metabolism | 6 | 244 | 399 | 438 |
| 618 | Synaptic Transmission | 13 | 244 | 166 | 281 |
| 618 | Colloids | 10 | 244 | 2300 | 2549 |
| 621 | Cell cycle | 4 | 243 | 260 | 135 |
| 622 | Geriatric Pharmacology | 14 | 240 | 62 | 140 |
| 623 | biological evolution | 7 | 234 | 1394 | 1610 |
| 624 | System analysis | 23 | 232 | 729 | 1264 |
| 625 | professional practice | 22 | 230 | 25 | 13 |
| 626 | occupational diseases | 11 | 229 | 357 | 500 |
| 627 | Cytokine | 4 | 227 | 336 | 330 |
| 628 | Cell adhesion | 4 | 226 | 111 | 102 |
| 629 | prostaglandins | 9 | 225 | 239 | 249 |
| 630 | ethanol | 13 | 223 | 154 | 236 |
| 631 | Bacterial diseases | 4 | 217 | 204 | 160 |
| 632 | Computer Graphics | 8 | 216 | 1117 | 1016 |
| 633 | Nonlinear Dynamics | 8 | 215 | 1265 | 1188 |
| 634 | marketing | 1 | 214 | 2657 | 1217 |
| 635 | Biochemical Genetics | 4 | 212 | 372 | 77 |
| 636 | monitoring | 18 | 209 | 37 | 73 |
| 636 | management | 12 | 209 | 1713 | 2176 |
| 638 | Cerebellum | 6 | 208 | 162 | 173 |
| 638 | Cerebellar ataxia | 6 | 208 | 160 | 172 |
| 640 | Astrophysics | 4 | 207 | 2695 | 2083 |
| 641 | Public Policy | 15 | 206 | 668 | 1088 |
| 641 | Contraception | 7 | 206 | 374 | 363 |
| 643 | Echocardiography | 11 | 203 | 8 | 27 |
| 644 | Artificial Intelligence | 11 | 201 | 2096 | 2391 |
| 645 | Physical Chemistry | 10 | 200 | 1248 | 1521 |
| 646 | Social support | 9 | 198 | 62 | 81 |
| 646 | Social environment | 9 | 198 | 62 | 83 |
| 648 | Stress | 4 | 195 | 201 | 137 |
| 649 | Maternal health services | 8 | 190 | 176 | 219 |
| 649 | Religion and Psychology | 12 | 190 | 126 | 162 |
| 649 | eugenics | 8 | 190 | 263 | 316 |
| 652 | Surface Chemistry | 10 | 188 | 2345 | 2715 |
| 652 | Neural circuitry | 7 | 188 | 1365 | 1416 |
| 654 | musculoskeletal system | 4 | 187 | 114 | 86 |
| 655 | men | 9 | 184 | 85 | 114 |
| 656 | Microfabrication | 5 | 181 | 276 | 189 |
| 656 | Genetic testing | 12 | 181 | 77 | 67 |
| 658 | adolescence | 4 | 180 | 786 | 627 |
| 659 | Library Science | 12 | 178 | 314 | 252 |
| 660 | Forensic Pathology | 9 | 177 | 46 | 30 |
| 661 | Cybernetics | 5 | 176 | 1269 | 1170 |
| 662 | urban health | 5 | 172 | 175 | 186 |
| 663 | patient satisfaction | 24 | 171 | 5 | 18 |
| 663 | mammals | 10 | 171 | 484 | 598 |
| 665 | health services accessibility | 14 | 170 | 350 | 568 |
| 666 | Pediatric Rheumatology | 12 | 168 | 64 | 104 |
| 667 | Genetic markers | 10 | 167 | 47 | 114 |
| 668 | Health care reform | 13 | 164 | 20 | 28 |
| 669 | Congenital heart disease | 34 | 161 | 5 | 7 |
| 670 | Gene expression | 8 | 159 | 118 | 221 |
| 670 | Vision | 7 | 159 | 427 | 531 |
| 672 | monoclonal antibodies | 10 | 156 | 89 | 169 |
| 672 | community participation | 2 | 156 | 146 | 53 |
| 672 | Faculty | 2 | 156 | 146 | 53 |
| 675 | Genetic Toxicology | 1 | 153 | 905 | 471 |
| 675 | Community Psychiatry | 14 | 153 | 378 | 808 |
| 677 | Protozoa | 21 | 152 | 60 | 314 |
| 677 | exobiology | 1 | 152 | 509 | 279 |
| 679 | Surface-Active Agents | 3 | 151 | 1207 | 1030 |
| 679 | Surface properties | 3 | 151 | 1291 | 1116 |
| 681 | Oligosaccharides | 5 | 150 | 148 | 165 |
| 681 | Peptide | 4 | 150 | 182 | 113 |
| 683 | Agricultural Chemistry | 4 | 149 | 2186 | 1928 |
| 684 | food technology | 6 | 148 | 1878 | 2065 |
| 685 | Dynamics | 4 | 146 | 1412 | 845 |
| 686 | Developmental Neurobiology | 5 | 145 | 371 | 339 |
| 686 | Oligosaccharide | 4 | 145 | 253 | 325 |
| 686 | Carbohydrates | 4 | 145 | 374 | 404 |
| 689 | Bacteria | 4 | 144 | 284 | 400 |
| 690 | Zoology | 2 | 143 | 2928 | 1623 |
| 690 | Plant Genetics | 1 | 143 | 1121 | 713 |
| 692 | Developmental Immunology | 9 | 142 | 270 | 560 |
| 693 | Nanomedicine | 3 | 141 | 218 | 206 |
| 693 | Food Microbiology | 4 | 141 | 1088 | 1271 |
| 693 | Soft Condensed Matter | 3 | 141 | 1108 | 871 |
| 693 | polar regions | 1 | 141 | 1079 | 457 |
| 697 | Plant cells | 1 | 140 | 1568 | 1364 |
| 698 | Hematopoiesis | 6 | 139 | 20 | 35 |
| 699 | Pediatric Endocrinology | 14 | 138 | 65 | 116 |
| 700 | Mathematical Physics | 2 | 134 | 3059 | 1684 |
| 700 | Dialysis | 9 | 134 | 58 | 42 |
| 700 | Pollution | 8 | 134 | 3660 | 4958 |
| 703 | Androgens | 13 | 133 | 56 | 236 |
| 704 | Screening | 3 | 132 | 198 | 109 |
| 705 | Molecular evolution | 5 | 128 | 1174 | 1500 |
| 706 | Cell migration | 3 | 127 | 74 | 104 |
| 706 | speech therapy | 8 | 127 | 236 | 274 |
| 706 | Herbal medicine | 4 | 127 | 650 | 758 |
| 706 | environmental pollution | 7 | 127 | 3164 | 4195 |
| 706 | Culture | 2 | 127 | 1274 | 496 |
| 706 | Pregnancy | 10 | 127 | 403 | 641 |
| 712 | Professional ethics | 4 | 126 | 211 | 162 |
| 713 | Industrial Engineering | 8 | 125 | 1134 | 1496 |
| 713 | Engineering Ethics | 3 | 125 | 206 | 138 |
| 713 | Socioeconomic Factors | 7 | 125 | 448 | 656 |
| 713 | Yeast | 5 | 125 | 273 | 378 |
| 717 | big data | 5 | 123 | 395 | 413 |
| 718 | natural products | 4 | 121 | 1623 | 1317 |
| 719 | Automation | 5 | 120 | 1812 | 1936 |
| 719 | Radiation Protection | 5 | 120 | 508 | 267 |
| 721 | Quantum theory | 1 | 119 | 1428 | 692 |
| 722 | mathematical analysis | 2 | 118 | 2448 | 1316 |
| 723 | Acoustics | 27 | 116 | 60 | 219 |
| 723 | Globalization | 3 | 116 | 554 | 408 |
| 723 | child mental health | 16 | 116 | 135 | 339 |
| 726 | Acoustic holography | 26 | 115 | 4 | 7 |
| 726 | Holography | 26 | 115 | 4 | 7 |
| 726 | Acoustic imaging | 26 | 115 | 4 | 7 |
| 729 | Anthropology | 7 | 114 | 951 | 988 |
| 729 | Environmental Psychology | 1 | 114 | 640 | 443 |
| 731 | Kidney transplantation | 7 | 113 | 42 | 46 |
| 732 | Plant Ecology | 1 | 112 | 2535 | 1764 |
| 732 | Mobile genetic elements | 3 | 112 | 85 | 86 |
| 734 | orphan drugs | 14 | 110 | 3 | 7 |
| 735 | Social Psychology | 9 | 109 | 1191 | 1844 |
| 735 | Biofilms | 2 | 109 | 214 | 186 |
| 737 | cell adhesion molecules | 1 | 108 | 409 | 339 |
| 738 | Apoptosis | 2 | 107 | 353 | 247 |
| 738 | neurotoxins | 2 | 107 | 353 | 247 |
| 738 | Neurotoxic agents | 2 | 107 | 353 | 247 |
| 738 | Germany | 4 | 107 | 515 | 189 |
| 738 | international cooperation | 2 | 107 | 766 | 535 |
| 738 | Nerve regeneration | 2 | 107 | 353 | 247 |
| 744 | Integrative Medicine | 6 | 106 | 164 | 122 |
| 744 | Psychiatric hospitals | 10 | 106 | 145 | 253 |
| 746 | Computational Chemistry | 1 | 105 | 1115 | 621 |
| 746 | Family Therapy | 9 | 105 | 393 | 534 |
| 748 | Clinical Laboratory Science | 7 | 104 | 109 | 142 |
| 748 | Food additives | 6 | 104 | 846 | 1291 |
| 750 | Meteorology | 3 | 102 | 2237 | 2383 |
| 750 | Photochemistry | 4 | 102 | 1514 | 1537 |
| 750 | Light | 4 | 102 | 825 | 1144 |
| 753 | Cochlear Implants | 8 | 101 | 35 | 49 |
| 753 | Digital humanities | 1 | 101 | 213 | 57 |
| 753 | air quality | 1 | 101 | 559 | 155 |
| 753 | Hippocampus | 3 | 101 | 298 | 403 |
| 757 | Engineering Mathematics | 10 | 100 | 983 | 1288 |
| 757 | Metabolic disorders in children | 12 | 100 | 59 | 121 |
| 759 | Neonatology | 5 | 97 | 451 | 568 |
| 759 | Pediatric Nursing | 9 | 97 | 185 | 325 |
| 759 | Ion channels | 7 | 97 | 31 | 86 |
| 762 | Total Quality Management | 11 | 96 | 128 | 439 |
| 762 | Simulation Methods | 3 | 96 | 993 | 775 |
| 762 | Appetite | 2 | 96 | 779 | 740 |
| 765 | Obstetric Nursing | 5 | 95 | 191 | 230 |
| 765 | breastfeeding | 10 | 95 | 176 | 431 |
| 767 | Psychiatric Nursing | 10 | 94 | 297 | 510 |
| 767 | Autism | 5 | 94 | 529 | 813 |
| 769 | Electrochemistry | 10 | 92 | 2473 | 3144 |
| 770 | Mechanical Engineering | 1 | 91 | 3680 | 1819 |
| 771 | Post-traumatic stress disorder | 7 | 90 | 458 | 806 |
| 772 | Multimedia Systems | 5 | 89 | 1491 | 1460 |
| 773 | Drug delivery devices | 3 | 88 | 247 | 414 |
| 774 | Lymphatic system | 5 | 87 | 53 | 72 |
| 774 | child sexual abuse | 4 | 87 | 96 | 124 |
| 774 | bioluminescence | 1 | 87 | 748 | 190 |
| 774 | biopolymers | 2 | 87 | 1447 | 1217 |
| 778 | Geriatric Nursing | 12 | 86 | 148 | 292 |
| 778 | drug resistance | 6 | 86 | 472 | 857 |
| 780 | Environmental Engineering | 5 | 85 | 3164 | 3936 |
| 780 | Reproductive health | 7 | 85 | 480 | 826 |
| 780 | nuclear magnetic resonance spectroscopy | 9 | 85 | 391 | 586 |
| 783 | Veterinary Immunology | 4 | 84 | 304 | 374 |
| 783 | fuel cells | 1 | 84 | 1882 | 1455 |
| 785 | Numerical Analysis | 8 | 82 | 1522 | 1747 |
| 785 | Human physiology | 3 | 82 | 96 | 50 |
| 785 | Condensed Matter | 2 | 82 | 3125 | 2593 |
| 785 | Student Health Services | 3 | 82 | 267 | 261 |
| 785 | mathematical concepts | 8 | 82 | 178 | 272 |
| 790 | Evolutionary Genetics | 3 | 80 | 712 | 743 |
| 790 | Molecular Epidemiology | 3 | 80 | 712 | 743 |
| 790 | Combinatorial chemistry | 5 | 80 | 604 | 1087 |
| 793 | Cell division | 4 | 79 | 315 | 551 |
| 793 | harm reduction | 2 | 79 | 281 | 220 |
| 795 | Chronobiology | 3 | 78 | 497 | 485 |
| 795 | biological clocks | 3 | 78 | 497 | 485 |
| 795 | circadian rhythm | 3 | 78 | 497 | 485 |
| 795 | biological rhythms | 3 | 78 | 474 | 480 |
| 799 | cross-cultural comparison | 5 | 76 | 398 | 516 |
| 799 | Intellectual disability | 7 | 76 | 511 | 786 |
| 801 | Cognitive Science | 5 | 75 | 1200 | 1709 |
| 802 | disease vectors | 3 | 74 | 995 | 1097 |
| 803 | Environmental Policy | 4 | 73 | 3001 | 4037 |
| 803 | Environmental Law | 4 | 73 | 1000 | 1752 |
| 803 | Educational Psychology | 7 | 73 | 881 | 1348 |
| 803 | environmental protection | 4 | 73 | 3260 | 3968 |
| 807 | Teratology | 1 | 72 | 486 | 360 |
| 807 | abnormalities | 1 | 72 | 322 | 241 |
| 807 | amino acids | 4 | 72 | 478 | 737 |
| 810 | Imaging systems | 3 | 71 | 873 | 570 |
| 811 | Economic History | 1 | 70 | 4582 | 2647 |
| 811 | Business | 1 | 70 | 3048 | 2201 |
| 811 | Family | 5 | 70 | 709 | 921 |
| 814 | Photonics | 4 | 69 | 1792 | 2120 |
| 814 | Statistical models | 3 | 69 | 106 | 101 |
| 814 | Liquid chromatography | 2 | 69 | 723 | 349 |
| 817 | epidemiologic methods | 20 | 68 | 10 | 145 |
| 818 | Robotics | 6 | 67 | 1308 | 1786 |
| 818 | Pastoral Theology | 10 | 67 | 37 | 15 |
| 818 | Biomolecules | 2 | 67 | 610 | 745 |
| 821 | Circadian rhythms | 2 | 66 | 502 | 490 |
| 821 | stem cell transplantation | 3 | 66 | 56 | 42 |
| 821 | Documentation | 2 | 66 | 396 | 305 |
| 824 | Analytical Toxicology | 3 | 65 | 214 | 263 |
| 824 | Consciousness | 3 | 65 | 464 | 493 |
| 826 | Body Image | 2 | 64 | 286 | 357 |
| 826 | Jurisprudence | 6 | 64 | 617 | 805 |
| 828 | Metabolic syndrome | 4 | 63 | 174 | 307 |
| 828 | Pathogens | 2 | 63 | 138 | 138 |
| 828 | allied health | 6 | 63 | 161 | 318 |
| 831 | Socialization | 3 | 62 | 504 | 716 |
| 831 | Communication Disorders | 5 | 62 | 222 | 297 |
| 833 | Radiologic Technology | 5 | 61 | 90 | 119 |
| 833 | Interventional Radiology | 5 | 61 | 90 | 119 |
| 833 | Interventional Radiography | 5 | 61 | 90 | 119 |
| 833 | Endoscopic Surgery | 5 | 61 | 90 | 119 |
| 837 | Access to Information | 2 | 60 | 253 | 296 |
| 837 | Information dissemination | 2 | 60 | 253 | 296 |
| 839 | Technological Innovations | 7 | 59 | 606 | 1283 |
| 839 | venom | 9 | 59 | 347 | 936 |
| 839 | Toxins | 9 | 59 | 393 | 1029 |
| 842 | ethnicity | 4 | 58 | 578 | 577 |
| 842 | health and race | 4 | 58 | 153 | 251 |
| 842 | Insects | 3 | 58 | 1441 | 1405 |
| 845 | History of Medicine | 7 | 57 | 223 | 179 |
| 845 | Peroxisomes | 2 | 57 | 42 | 102 |
| 845 | cough | 1 | 57 | 39 | 43 |
| 848 | internet | 10 | 55 | 812 | 1777 |
| 848 | chromatin | 4 | 55 | 89 | 298 |
| 848 | Structure-activity relationship | 1 | 55 | 525 | 383 |
| 851 | Hepatitis | 1 | 54 | 5 | 1 |
| 852 | Biomass Energy | 1 | 53 | 3470 | 3144 |
| 852 | biofuels | 1 | 53 | 558 | 720 |
| 854 | Scheduling | 1 | 52 | 252 | 172 |
| 854 | Production Scheduling | 1 | 52 | 252 | 172 |
| 854 | language therapy | 1 | 52 | 261 | 187 |
| 857 | Plant Biotechnology | 1 | 51 | 1379 | 1095 |
| 857 | Algae | 1 | 51 | 1159 | 923 |
| 857 | Seaweed | 1 | 51 | 899 | 788 |
| 860 | Information Technology | 4 | 50 | 2212 | 2660 |
| 860 | Information management | 1 | 50 | 213 | 111 |
| 860 | vitamins | 4 | 50 | 94 | 309 |
| 863 | elasticity | 1 | 48 | 404 | 248 |
| 864 | Exercise therapy | 4 | 47 | 335 | 451 |
| 865 | Sexuality | 4 | 46 | 240 | 349 |
| 865 | Scanning electron microscopy | 2 | 46 | 198 | 187 |
| 865 | Biodiversity | 3 | 46 | 2260 | 2817 |
| 865 | Nitric oxide | 5 | 46 | 140 | 509 |
| 869 | Bioremediation | 1 | 45 | 1583 | 1365 |
| 869 | Biodegradation | 1 | 45 | 1392 | 1250 |
| 869 | Evidence-based practice | 11 | 45 | 16 | 47 |
| 869 | Marriage | 5 | 45 | 358 | 659 |
| 869 | homosexuality | 4 | 45 | 325 | 538 |
| 869 | Marriage counseling | 5 | 45 | 212 | 474 |
| 875 | Computational Intelligence | 4 | 44 | 577 | 813 |
| 875 | embryonic development | 3 | 44 | 404 | 662 |
| 875 | Respiratory Infections | 7 | 44 | 225 | 542 |
| 875 | disease susceptibility | 2 | 44 | 56 | 158 |
| 875 | Human biology | 4 | 44 | 547 | 770 |
| 875 | symptoms | 2 | 44 | 56 | 158 |
| 881 | Systems Engineering | 6 | 42 | 1641 | 2482 |
| 881 | Psychometrics | 2 | 42 | 498 | 535 |
| 881 | radiation monitoring | 4 | 42 | 523 | 541 |
| 881 | Interferons | 1 | 42 | 582 | 481 |
| 885 | Pharmacy management | 5 | 41 | 203 | 373 |
| 886 | Malaria | 2 | 40 | 902 | 1092 |
| 887 | biobanks | 7 | 39 | 40 | 176 |
| 887 | Microfluidics | 2 | 39 | 303 | 407 |
| 887 | Synthetic biology | 2 | 39 | 457 | 575 |
| 887 | evaluation | 5 | 39 | 82 | 211 |
| 891 | men's health | 11 | 38 | 3 | 35 |
| 891 | Social behavior | 3 | 38 | 1150 | 1624 |
| 893 | Suicide | 4 | 37 | 459 | 813 |
| 894 | caffeine | 1 | 36 | 38 | 29 |
| 895 | Palynology | 1 | 34 | 487 | 332 |
| 895 | Highway Engineering | 1 | 34 | 691 | 560 |
| 895 | Risk Management | 5 | 34 | 514 | 1138 |
| 895 | Genetic Research | 2 | 34 | 236 | 315 |
| 895 | medical errors | 3 | 34 | 46 | 115 |
| 895 | Program Evaluation | 4 | 34 | 57 | 158 |
| 895 | ethnic groups | 3 | 34 | 315 | 546 |
| 895 | safety | 3 | 34 | 65 | 161 |
| 895 | disease outbreaks | 3 | 34 | 564 | 1034 |
| 895 | role | 2 | 34 | 515 | 783 |
| 895 | Cannabis | 5 | 34 | 50 | 184 |
| 895 | Epidemics | 3 | 34 | 544 | 1013 |
| 895 | Regulation | 1 | 34 | 33 | 70 |
| 895 | cannabinoids | 5 | 34 | 46 | 172 |
| 909 | Cosmology | 1 | 33 | 948 | 761 |
| 909 | Altitude Sickness | 8 | 33 | 43 | 238 |
| 909 | nuclear astrophysics | 1 | 33 | 733 | 645 |
| 909 | Organometallic chemistry | 4 | 33 | 1869 | 2352 |
| 909 | Vocational guidance | 3 | 33 | 851 | 1280 |
| 909 | movement | 3 | 33 | 317 | 609 |
| 909 | Altitude | 8 | 33 | 43 | 238 |
| 909 | Synapses | 3 | 33 | 266 | 541 |
| 909 | Trace elements | 3 | 33 | 268 | 647 |
| 909 | Bereavement | 3 | 33 | 181 | 261 |
| 919 | Experimental Design | 3 | 32 | 280 | 456 |
| 919 | Public Health Administration | 4 | 32 | 253 | 380 |
| 919 | Morphology | 2 | 32 | 1012 | 1003 |
| 919 | Quality Control | 3 | 32 | 1878 | 2659 |
| 919 | Hypertension in pregnancy | 2 | 32 | 260 | 262 |
| 919 | brain diseases | 3 | 32 | 3 | 29 |
| 925 | Chemical Ecology | 1 | 31 | 854 | 971 |
| 925 | Environmental Chemistry | 1 | 31 | 3406 | 3406 |
| 925 | Computer-Aided Design | 6 | 31 | 871 | 1840 |
| 925 | pediatric pharmacology | 2 | 31 | 132 | 74 |
| 925 | Immunotoxicology | 2 | 31 | 449 | 563 |
| 925 | pheromones | 1 | 31 | 797 | 932 |
| 925 | Microwave devices | 2 | 31 | 633 | 680 |
| 925 | Allergies | 3 | 31 | 134 | 277 |
| 933 | Africa | 4 | 30 | 1356 | 1715 |
| 933 | toxicity testing | 3 | 30 | 810 | 1423 |
| 933 | Detectors | 3 | 30 | 1582 | 2194 |
| 936 | Visual Communication | 2 | 29 | 626 | 720 |
| 936 | Neuroimaging | 2 | 29 | 397 | 460 |
| 936 | Organizational change | 4 | 29 | 600 | 1069 |
| 936 | Medical Illustration | 2 | 29 | 26 | 17 |
| 936 | optical phenomena | 1 | 29 | 268 | 254 |
| 936 | weight loss | 3 | 29 | 140 | 288 |
| 936 | drug control | 3 | 29 | 403 | 704 |
| 943 | Environmental Geology | 1 | 28 | 2490 | 2395 |
| 943 | Nanophotonics | 1 | 28 | 388 | 473 |
| 943 | Radiopharmaceuticals | 6 | 28 | 239 | 378 |
| 943 | Sonochemistry | 1 | 28 | 1104 | 1410 |
| 943 | food industry | 2 | 28 | 1026 | 1104 |
| 943 | planning | 5 | 28 | 519 | 1142 |
| 949 | Health Physics | 2 | 27 | 269 | 276 |
| 949 | family violence | 2 | 27 | 516 | 789 |
| 949 | pharmaceutical industry | 3 | 27 | 631 | 1029 |
| 949 | educational innovations | 3 | 27 | 500 | 822 |
| 953 | economic forecasting | 1 | 26 | 634 | 626 |
| 953 | Forecasting | 1 | 26 | 1008 | 882 |
| 953 | Ocular Motility Disorders | 8 | 26 | 6 | 12 |
| 953 | Pacific Islands | 1 | 26 | 654 | 470 |
| 953 | Cheminformatics | 4 | 26 | 274 | 740 |
| 958 | Chemical Engineering | 3 | 25 | 4448 | 5753 |
| 958 | Food Safety | 1 | 25 | 593 | 527 |
| 958 | Organizational learning | 4 | 25 | 306 | 702 |
| 958 | Regeneration | 1 | 25 | 175 | 163 |
| 958 | Feasibility studies | 4 | 25 | 240 | 355 |
| 958 | Environmental pollutants | 3 | 25 | 2410 | 3753 |
| 958 | Social problems | 2 | 25 | 693 | 1019 |
| 965 | Marine Biology | 1 | 24 | 3643 | 3684 |
| 965 | Mobile Computing | 1 | 24 | 1792 | 1618 |
| 965 | Wireless Communication Systems | 1 | 24 | 3282 | 2972 |
| 965 | Risk assessment | 1 | 24 | 1267 | 1126 |
| 965 | Marine biodiversity | 1 | 24 | 415 | 299 |
| 965 | ecological risk assessment | 1 | 24 | 599 | 620 |
| 965 | Health Risk Assessment | 1 | 24 | 984 | 904 |
| 965 | muscle strength | 3 | 24 | 65 | 117 |
| 973 | Cross-Cultural Studies | 3 | 23 | 771 | 1290 |
| 973 | Occupational exposure | 2 | 23 | 99 | 114 |
| 973 | Invertebrates | 1 | 23 | 1084 | 1099 |
| 973 | city planning | 1 | 23 | 2440 | 2303 |
| 973 | NMR | 3 | 23 | 535 | 767 |
| 973 | magnetic resonance | 3 | 23 | 552 | 792 |
| 973 | Zoonoses | 1 | 23 | 569 | 689 |
| 980 | Patient Safety | 3 | 22 | 94 | 162 |
| 981 | Nonverbal Communication | 1 | 21 | 366 | 484 |
| 981 | Hemodialysis | 2 | 21 | 86 | 34 |
| 981 | Computational Complexity | 1 | 21 | 1620 | 1418 |
| 981 | recreation | 3 | 21 | 645 | 917 |
| 985 | Anthropological Linguistics | 6 | 20 | 126 | 270 |
| 985 | Fluid Dynamics | 2 | 20 | 1355 | 1779 |
| 985 | Public Administration | 2 | 20 | 1585 | 1786 |
| 985 | School Psychology | 2 | 20 | 547 | 837 |
| 985 | psychiatric disorders | 2 | 20 | 71 | 108 |
| 985 | Microwaves | 3 | 20 | 1494 | 1883 |
| 985 | women | 4 | 20 | 680 | 1164 |
| 992 | Dyslexia | 1 | 19 | 283 | 330 |
| 992 | Electrochemical Analysis | 1 | 19 | 2255 | 2386 |
| 992 | elder abuse | 1 | 19 | 573 | 696 |
| 992 | Retinal diseases | 2 | 19 | 115 | 65 |
| 992 | Nutrigenomics | 1 | 19 | 245 | 403 |
| 992 | Insulin | 4 | 19 | 2 | 6 |
| 992 | school psychologists | 1 | 19 | 345 | 455 |
| 992 | Informatics | 3 | 19 | 929 | 1594 |
| 992 | Immune response | 3 | 19 | 30 | 85 |