| 1 | Science | 1,540 | 163.2K | 193 | 162 |
| 2 | Medicine | 2,074 | 149.3K | 132 | 97 |
| 3 | Neurology | 2,004 | 134.4K | 66 | 71 |
| 4 | Biology | 1,386 | 131.8K | 212 | 204 |
| 5 | Microbiology | 1,376 | 122.2K | 70 | 41 |
| 6 | Biochemistry | 2,177 | 111.3K | 143 | 118 |
| 7 | Physics | 505 | 95.6K | 702 | 321 |
| 8 | Molecular Biology | 1,209 | 86.8K | 182 | 155 |
| 9 | Natural history | 161 | 71.2K | 300 | 167 |
| 10 | Research | 1,282 | 58.8K | 147 | 123 |
| 11 | Psychiatry | 751 | 56.6K | 78 | 60 |
| 12 | Immunology | 900 | 56.1K | 38 | 53 |
| 13 | Medical Microbiology | 552 | 51.9K | 2 | 2 |
| 14 | Human genetics | 170 | 49.5K | 160 | 106 |
| 15 | Neurophysiology | 576 | 43.7K | 62 | 59 |
| 16 | Chemistry | 542 | 39.5K | 718 | 498 |
| 17 | Physiology | 607 | 38.7K | 103 | 74 |
| 18 | Cytology | 468 | 37.7K | 190 | 178 |
| 19 | Biophysics | 1,114 | 35.4K | 72 | 102 |
| 20 | Cell Biology | 408 | 33.1K | 186 | 187 |
| 21 | Endocrinology | 580 | 32.1K | 77 | 103 |
| 22 | Schizophrenia | 459 | 32.0K | 8 | 6 |
| 23 | Pharmacology | 702 | 30.4K | 143 | 110 |
| 24 | Geriatrics | 877 | 26.8K | 22 | 37 |
| 25 | Computational Chemistry | 26 | 26.7K | 90 | 6 |
| 26 | Mental Disorders | 498 | 26.6K | 51 | 72 |
| 27 | Psychophysiology | 308 | 26.1K | 156 | 91 |
| 28 | Pediatrics | 477 | 25.5K | 61 | 66 |
| 29 | Public Health | 449 | 24.6K | 204 | 158 |
| 30 | Virology | 283 | 24.5K | 155 | 169 |
| 31 | Surgery | 225 | 22.6K | 78 | 106 |
| 32 | United States | 773 | 21.8K | 128 | 146 |
| 33 | Genetics | 233 | 20.6K | 244 | 200 |
| 34 | Immunity | 158 | 20.1K | 123 | 115 |
| 35 | Neurochemistry | 386 | 19.6K | 44 | 43 |
| 36 | Psychopharmacology | 248 | 19.5K | 35 | 32 |
| 37 | Transplantation | 300 | 18.7K | 27 | 24 |
| 38 | Brain | 339 | 18.0K | 97 | 100 |
| 39 | Diagnostic microbiology | 138 | 17.5K | 35 | 12 |
| 40 | Cancer | 294 | 17.1K | 179 | 171 |
| 41 | Hematology | 468 | 16.7K | 103 | 154 |
| 42 | Pharmaceutical Chemistry | 266 | 16.7K | 179 | 98 |
| 43 | Medical genetics | 236 | 16.4K | 167 | 154 |
| 44 | Mental illness | 337 | 16.3K | 40 | 70 |
| 45 | Epidemiology | 248 | 15.6K | 193 | 126 |
| 46 | Neurobiology | 210 | 15.4K | 72 | 70 |
| 47 | Vaccines | 337 | 14.7K | 12 | 9 |
| 48 | arthritis | 100 | 14.7K | 101 | 32 |
| 49 | Nervous system | 141 | 14.2K | 183 | 96 |
| 50 | Aging | 588 | 14.2K | 28 | 76 |
| 51 | Cardiovascular system | 190 | 14.1K | 101 | 131 |
| 52 | drug therapy | 304 | 13.6K | 55 | 42 |
| 53 | Metabolism | 244 | 13.6K | 153 | 171 |
| 54 | Medical Oncology | 295 | 13.5K | 45 | 45 |
| 55 | Biotechnology | 181 | 13.3K | 562 | 400 |
| 56 | Toxicology | 386 | 13.2K | 135 | 157 |
| 57 | Clinical Chemistry | 213 | 13.0K | 116 | 62 |
| 58 | Obstetrics | 340 | 12.9K | 77 | 61 |
| 59 | Radiobiology | 289 | 12.8K | 29 | 34 |
| 60 | Nutrition | 259 | 12.7K | 210 | 185 |
| 61 | Hypertension | 214 | 12.4K | 96 | 137 |
| 62 | Molecular Microbiology | 92 | 12.2K | 42 | 13 |
| 63 | Ecology | 110 | 12.0K | 969 | 591 |
| 64 | Pediatric Neurology | 59 | 11.9K | 108 | 52 |
| 65 | pain | 170 | 11.7K | 55 | 54 |
| 66 | Neurons | 72 | 11.5K | 62 | 81 |
| 67 | Metabolic diseases | 180 | 11.2K | 146 | 173 |
| 68 | Pathology | 152 | 11.2K | 169 | 103 |
| 69 | Memory | 254 | 10.9K | 59 | 61 |
| 70 | Environment | 192 | 10.9K | 417 | 520 |
| 71 | Bioengineering | 122 | 10.7K | 457 | 302 |
| 72 | Urology | 276 | 10.6K | 63 | 60 |
| 73 | Biomedical Engineering | 195 | 10.2K | 390 | 250 |
| 74 | Oncology | 155 | 10.1K | 117 | 179 |
| 75 | Critical Care | 110 | 10.0K | 127 | 114 |
| 76 | Critical Care Medicine | 104 | 10.0K | 136 | 115 |
| 77 | Psychology | 225 | 9.6K | 423 | 339 |
| 78 | Therapeutics | 179 | 9.3K | 73 | 58 |
| 79 | Gerontology | 528 | 9.2K | 18 | 31 |
| 80 | Virulence | 104 | 9.2K | 57 | 53 |
| 81 | Microorganisms | 53 | 9.2K | 74 | 20 |
| 82 | Genomics | 171 | 8.9K | 176 | 124 |
| 83 | Diabetes | 127 | 8.3K | 172 | 160 |
| 84 | Microbial Ecology | 98 | 8.3K | 236 | 194 |
| 85 | Perception | 228 | 8.3K | 80 | 80 |
| 86 | Attention | 228 | 8.3K | 64 | 55 |
| 87 | Visual Perception | 227 | 8.2K | 56 | 53 |
| 88 | Allergy | 30 | 8.2K | 271 | 112 |
| 89 | Diabetes mellitus | 113 | 8.1K | 169 | 159 |
| 90 | Oncogenes | 97 | 8.1K | 72 | 74 |
| 91 | Medical Physics | 432 | 8.0K | 27 | 71 |
| 92 | Rheumatology | 62 | 7.9K | 130 | 45 |
| 93 | Host-parasite interactions | 86 | 7.8K | 79 | 82 |
| 94 | Environmental Microbiology | 48 | 7.8K | 153 | 38 |
| 95 | Behavior | 185 | 7.6K | 231 | 304 |
| 96 | rehabilitation | 160 | 7.5K | 107 | 86 |
| 97 | viruses | 109 | 7.5K | 134 | 120 |
| 98 | Mental Health Services | 278 | 7.2K | 17 | 22 |
| 99 | Diet | 85 | 7.1K | 229 | 164 |
| 100 | Biomechanics | 57 | 7.0K | 168 | 55 |
| 101 | Environmental Health | 200 | 7.0K | 392 | 522 |
| 102 | Emergency Medicine | 315 | 6.8K | 16 | 34 |
| 103 | Neuropsychology | 117 | 6.7K | 217 | 139 |
| 104 | Pharmacy | 258 | 6.6K | 59 | 71 |
| 105 | Community Psychiatry | 202 | 6.6K | 15 | 24 |
| 106 | soil microbiology | 35 | 6.6K | 322 | 106 |
| 107 | Biocompatible Materials | 106 | 6.5K | 568 | 489 |
| 108 | nucleic acids | 83 | 6.5K | 223 | 227 |
| 109 | Obesity | 127 | 6.4K | 141 | 134 |
| 110 | Physical Therapy | 122 | 6.3K | 78 | 71 |
| 111 | gene mapping | 84 | 6.3K | 157 | 121 |
| 112 | Bacteriology | 90 | 6.2K | 218 | 180 |
| 113 | Biochemical Engineering | 34 | 5.9K | 956 | 446 |
| 114 | Developmental Biology | 74 | 5.9K | 287 | 237 |
| 115 | Long-Term Care | 97 | 5.9K | 13 | 20 |
| 115 | Long-term care facilities | 97 | 5.9K | 13 | 20 |
| 117 | free radicals | 56 | 5.8K | 144 | 71 |
| 118 | medical education | 143 | 5.7K | 130 | 93 |
| 119 | Reproduction | 163 | 5.7K | 140 | 145 |
| 119 | cell physiology | 88 | 5.7K | 125 | 120 |
| 121 | Substance Abuse | 180 | 5.6K | 57 | 59 |
| 122 | child abuse | 99 | 5.6K | 29 | 24 |
| 123 | Nursing | 203 | 5.4K | 42 | 30 |
| 124 | Social work | 270 | 5.4K | 29 | 29 |
| 125 | Psychiatric hospitals | 183 | 5.3K | 5 | 6 |
| 126 | Adolescent | 205 | 5.2K | 87 | 101 |
| 127 | drug development | 58 | 5.2K | 67 | 82 |
| 128 | Health Policy | 157 | 5.2K | 125 | 113 |
| 129 | Medical innovations | 46 | 5.2K | 86 | 88 |
| 130 | human behavior | 109 | 5.1K | 239 | 304 |
| 131 | Spectrum analysis | 103 | 5.1K | 723 | 660 |
| 132 | Physical Chemistry | 102 | 5.1K | 243 | 217 |
| 133 | Nanotechnology | 77 | 5.0K | 1,036 | 793 |
| 134 | Social Psychology | 61 | 5.0K | 396 | 263 |
| 135 | alcoholism | 188 | 4.9K | 62 | 93 |
| 136 | Immunotherapy | 78 | 4.9K | 163 | 178 |
| 137 | Analytical Biochemistry | 91 | 4.9K | 63 | 51 |
| 138 | complementary therapies | 121 | 4.9K | 34 | 13 |
| 139 | Thrombosis | 66 | 4.9K | 128 | 76 |
| 140 | Liver diseases | 75 | 4.8K | 175 | 215 |
| 141 | Chromosome mapping | 74 | 4.7K | 147 | 107 |
| 142 | Analytical Chemistry | 85 | 4.7K | 853 | 560 |
| 143 | genome | 46 | 4.5K | 233 | 214 |
| 144 | Ophthalmology | 118 | 4.5K | 161 | 155 |
| 145 | Cell differentiation | 61 | 4.5K | 244 | 261 |
| 146 | Alternative Medicine | 108 | 4.5K | 36 | 14 |
| 147 | Disease | 61 | 4.5K | 2 | 92 |
| 148 | Orthopedics | 140 | 4.4K | 77 | 80 |
| 149 | vascular diseases | 55 | 4.3K | 85 | 64 |
| 150 | Chemotherapy | 105 | 4.3K | 62 | 45 |
| 151 | older people | 452 | 4.3K | 20 | 46 |
| 152 | Immune system | 39 | 4.3K | 157 | 182 |
| 153 | Informatics | 15 | 4.2K | 272 | 22 |
| 154 | preventive medicine | 70 | 4.1K | 120 | 97 |
| 155 | Dermatology | 155 | 4.0K | 112 | 131 |
| 156 | Hormones | 99 | 3.9K | 63 | 78 |
| 157 | Drug delivery systems | 65 | 3.9K | 107 | 109 |
| 158 | Systems Biology | 116 | 3.9K | 45 | 48 |
| 159 | Sports Medicine | 72 | 3.9K | 381 | 249 |
| 159 | Mental Health | 147 | 3.9K | 50 | 63 |
| 161 | Respiration | 118 | 3.9K | 98 | 136 |
| 162 | psychopathology | 18 | 3.8K | 87 | 31 |
| 163 | Computational Biology | 66 | 3.7K | 336 | 318 |
| 164 | Neuroimmunology | 49 | 3.6K | 50 | 35 |
| 165 | Bioorganic chemistry | 82 | 3.5K | 355 | 308 |
| 166 | Anatomy | 50 | 3.5K | 374 | 237 |
| 167 | Geophysics | 67 | 3.5K | 759 | 581 |
| 168 | Steroids | 87 | 3.5K | 32 | 29 |
| 169 | Health promotion | 75 | 3.4K | 110 | 91 |
| 170 | Sleep | 136 | 3.4K | 73 | 134 |
| 171 | Lipids | 40 | 3.4K | 193 | 103 |
| 172 | Fluorescence | 56 | 3.4K | 2 | 1 |
| 173 | Child | 157 | 3.3K | 136 | 200 |
| 174 | drug addiction | 103 | 3.2K | 85 | 115 |
| 175 | Leukemia | 50 | 3.2K | 146 | 157 |
| 175 | infection | 59 | 3.2K | 197 | 144 |
| 177 | Kidney diseases | 85 | 3.2K | 52 | 62 |
| 178 | Health | 122 | 3.2K | 141 | 176 |
| 179 | Lung Transplantation | 69 | 3.2K | 34 | 35 |
| 179 | Heart transplantation | 69 | 3.2K | 34 | 35 |
| 181 | Cytogenetics | 56 | 3.1K | 177 | 222 |
| 182 | Carcinogenesis | 53 | 3.1K | 78 | 61 |
| 183 | Membranes | 93 | 3.1K | 186 | 259 |
| 184 | carcinogens | 61 | 3.1K | 60 | 56 |
| 185 | Education | 37 | 3.1K | 935 | 377 |
| 186 | proteins | 80 | 3.1K | 206 | 204 |
| 187 | Radiology | 139 | 3.0K | 51 | 47 |
| 188 | Bacterial infections | 28 | 3.0K | 116 | 105 |
| 189 | Infections | 50 | 3.0K | 142 | 126 |
| 190 | Cognitive neuroscience | 26 | 3.0K | 281 | 200 |
| 191 | Sports | 37 | 3.0K | 536 | 236 |
| 192 | Child psychology | 79 | 3.0K | 206 | 270 |
| 193 | Learning | 31 | 2.9K | 320 | 172 |
| 194 | Psychoneuroimmunology | 35 | 2.9K | 66 | 45 |
| 195 | Psycholinguistics | 25 | 2.9K | 264 | 114 |
| 196 | psychotherapy | 41 | 2.9K | 275 | 190 |
| 197 | Child Development | 73 | 2.9K | 270 | 268 |
| 198 | Pharmaceutical Technology | 58 | 2.8K | 140 | 101 |
| 199 | Sociology | 76 | 2.8K | 433 | 368 |
| 200 | blood transfusion | 98 | 2.8K | 35 | 33 |
| 201 | Optics | 72 | 2.8K | 934 | 591 |
| 202 | Clinical Biochemistry | 57 | 2.8K | 85 | 62 |
| 203 | Adolescent Medicine | 94 | 2.8K | 28 | 78 |
| 204 | mutagens | 47 | 2.8K | 67 | 61 |
| 205 | Neurolinguistics | 20 | 2.8K | 90 | 23 |
| 206 | Animal Behavior | 53 | 2.7K | 394 | 350 |
| 207 | diseases | 9 | 2.7K | 113 | 140 |
| 208 | Health Education | 93 | 2.7K | 193 | 177 |
| 209 | Speech Disorders | 32 | 2.7K | 253 | 102 |
| 210 | Nephrology | 71 | 2.7K | 48 | 62 |
| 211 | Immunopathology | 73 | 2.7K | 123 | 131 |
| 212 | nanoscience | 33 | 2.7K | 840 | 603 |
| 213 | Speech | 28 | 2.7K | 208 | 80 |
| 214 | Histology | 62 | 2.6K | 257 | 238 |
| 215 | language | 18 | 2.6K | 253 | 69 |
| 216 | Artificial Organs | 80 | 2.6K | 20 | 11 |
| 217 | fertility | 48 | 2.6K | 150 | 136 |
| 218 | drugs | 71 | 2.6K | 219 | 186 |
| 219 | Infertility | 47 | 2.5K | 132 | 127 |
| 220 | Evolution | 21 | 2.5K | 639 | 403 |
| 221 | Radiation | 56 | 2.5K | 298 | 127 |
| 222 | Molecular structure | 24 | 2.5K | 769 | 286 |
| 223 | mycoses | 14 | 2.5K | 247 | 116 |
| 224 | Astrophysics | 67 | 2.5K | 837 | 878 |
| 225 | Embryology | 33 | 2.4K | 399 | 308 |
| 226 | Radiography | 82 | 2.4K | 59 | 139 |
| 227 | Heart Failure | 36 | 2.4K | 69 | 64 |
| 228 | Malaria | 74 | 2.4K | 37 | 43 |
| 229 | violence | 63 | 2.4K | 87 | 84 |
| 230 | Atmospheric Physics | 38 | 2.4K | 372 | 304 |
| 231 | Clinical Immunology | 61 | 2.3K | 116 | 98 |
| 232 | Genetic engineering | 67 | 2.3K | 214 | 307 |
| 233 | Environmental Toxicology | 57 | 2.3K | 290 | 349 |
| 234 | Post-traumatic stress disorder | 38 | 2.3K | 111 | 72 |
| 235 | Cell death | 33 | 2.3K | 251 | 239 |
| 236 | biological evolution | 21 | 2.3K | 688 | 501 |
| 237 | Pollution | 44 | 2.3K | 1,458 | 1,377 |
| 238 | Cognition | 38 | 2.2K | 435 | 315 |
| 239 | Organic Chemistry | 62 | 2.2K | 702 | 567 |
| 240 | Child welfare | 84 | 2.2K | 60 | 50 |
| 241 | Inflammation | 37 | 2.2K | 125 | 103 |
| 242 | Medical Technology | 53 | 2.2K | 127 | 103 |
| 243 | Molecular Pharmacology | 57 | 2.2K | 56 | 89 |
| 244 | Materials | 29 | 2.1K | 2,146 | 1,435 |
| 245 | Digestive system diseases | 87 | 2.1K | 46 | 69 |
| 246 | Medical Laboratory Science | 73 | 2.1K | 204 | 350 |
| 247 | Cerebral cortex | 32 | 2.0K | 207 | 182 |
| 248 | Women's health | 73 | 2.0K | 84 | 87 |
| 249 | Marriage | 15 | 2.0K | 143 | 25 |
| 250 | Oxidation-reduction | 18 | 2.0K | 215 | 148 |
| 251 | Dentistry | 68 | 2.0K | 62 | 44 |
| 252 | Genetic therapy | 43 | 2.0K | 152 | 154 |
| 253 | Hemodynamics | 36 | 2.0K | 122 | 153 |
| 254 | Bacterial diseases | 13 | 2.0K | 30 | 5 |
| 255 | United Kingdom | 47 | 2.0K | 254 | 275 |
| 256 | Spine | 27 | 2.0K | 148 | 101 |
| 257 | Medical Ethics | 91 | 2.0K | 74 | 49 |
| 258 | Sleep Disorders | 129 | 1.9K | 77 | 214 |
| 259 | Marriage counseling | 8 | 1.9K | 144 | 18 |
| 260 | Toxins | 66 | 1.9K | 29 | 34 |
| 261 | Meteorology | 30 | 1.9K | 623 | 519 |
| 262 | venom | 65 | 1.9K | 27 | 33 |
| 263 | Atmospheric Chemistry | 21 | 1.9K | 324 | 245 |
| 264 | Family | 49 | 1.9K | 142 | 108 |
| 265 | Clinical Psychology | 45 | 1.8K | 249 | 283 |
| 266 | cytokines | 45 | 1.8K | 105 | 105 |
| 267 | Bioinformatics | 57 | 1.8K | 310 | 407 |
| 268 | Signal Transduction | 35 | 1.8K | 258 | 283 |
| 269 | Signal Processing | 34 | 1.8K | 745 | 546 |
| 270 | Chronic diseases | 31 | 1.8K | 140 | 170 |
| 271 | health services | 69 | 1.8K | 95 | 101 |
| 272 | Research Design | 57 | 1.7K | 121 | 200 |
| 273 | Environmental Policy | 17 | 1.7K | 1,291 | 770 |
| 274 | counseling | 42 | 1.7K | 255 | 182 |
| 275 | Parasitology | 45 | 1.7K | 435 | 304 |
| 276 | visualization | 47 | 1.7K | 245 | 97 |
| 277 | enzymes | 41 | 1.7K | 235 | 195 |
| 278 | Pharmacogenetics | 43 | 1.7K | 100 | 120 |
| 279 | protein | 40 | 1.7K | 190 | 183 |
| 280 | Smoking | 40 | 1.7K | 117 | 104 |
| 281 | Quantum electronics | 56 | 1.7K | 234 | 178 |
| 282 | brain mapping | 41 | 1.7K | 87 | 116 |
| 283 | Biopharmaceutics | 50 | 1.7K | 80 | 116 |
| 283 | gene therapy | 32 | 1.7K | 194 | 186 |
| 285 | Stem cells | 42 | 1.6K | 265 | 291 |
| 286 | sexual behavior | 41 | 1.6K | 72 | 67 |
| 287 | Entomology | 38 | 1.6K | 528 | 293 |
| 288 | Nanostructured Materials | 42 | 1.6K | 894 | 854 |
| 289 | Elderly | 376 | 1.6K | 15 | 51 |
| 290 | Bone diseases | 17 | 1.6K | 99 | 86 |
| 291 | behavioral medicine | 55 | 1.6K | 160 | 273 |
| 292 | drug evaluation | 57 | 1.6K | 69 | 83 |
| 293 | Statistics | 66 | 1.6K | 514 | 445 |
| 294 | Developmental Psychology | 18 | 1.6K | 355 | 223 |
| 295 | Catalysis | 41 | 1.6K | 1,197 | 1,194 |
| 296 | adolescence | 59 | 1.6K | 104 | 166 |
| 297 | Adolescent Psychology | 32 | 1.5K | 145 | 129 |
| 298 | Family Therapy | 40 | 1.5K | 107 | 53 |
| 299 | Bones | 29 | 1.5K | 140 | 152 |
| 300 | Antioxidants | 26 | 1.5K | 94 | 143 |
| 300 | Growth | 14 | 1.5K | 468 | 362 |
| 302 | Cytokine | 40 | 1.5K | 6 | 33 |
| 303 | Neurosurgery | 23 | 1.5K | 247 | 155 |
| 304 | Parasitic Diseases | 36 | 1.5K | 378 | 307 |
| 305 | Social Sciences | 62 | 1.5K | 541 | 484 |
| 306 | histological techniques | 30 | 1.5K | 96 | 95 |
| 307 | lasers | 53 | 1.5K | 375 | 288 |
| 308 | Neuropsychiatry | 38 | 1.5K | 108 | 111 |
| 309 | health behavior | 51 | 1.5K | 126 | 142 |
| 310 | family violence | 33 | 1.5K | 31 | 26 |
| 311 | Tropical Medicine | 54 | 1.4K | 189 | 177 |
| 312 | Audiology | 24 | 1.4K | 193 | 129 |
| 313 | Bioethics | 50 | 1.4K | 100 | 54 |
| 314 | General Surgery | 50 | 1.4K | 104 | 68 |
| 315 | Economic Development | 5 | 1.4K | 1,175 | 326 |
| 316 | Engineering | 34 | 1.4K | 1,243 | 709 |
| 317 | Bioenergetics | 24 | 1.4K | 185 | 143 |
| 318 | Pharmacokinetics | 23 | 1.4K | 139 | 78 |
| 319 | Thorax | 33 | 1.4K | 75 | 74 |
| 320 | Pediatric Nursing | 27 | 1.4K | 60 | 15 |
| 321 | drug abuse | 59 | 1.4K | 42 | 43 |
| 322 | Industrial Microbiology | 25 | 1.4K | 495 | 444 |
| 322 | Primary health care | 63 | 1.4K | 207 | 240 |
| 324 | environmental pollution | 27 | 1.4K | 1,500 | 1,325 |
| 325 | Molecular Genetics | 22 | 1.4K | 589 | 491 |
| 326 | Astrocytes | 20 | 1.4K | 89 | 93 |
| 327 | Photonics | 53 | 1.4K | 376 | 528 |
| 328 | Proteome | 28 | 1.4K | 240 | 246 |
| 329 | Clinical Trials | 40 | 1.3K | 68 | 53 |
| 329 | Developmental Immunology | 27 | 1.3K | 70 | 51 |
| 331 | Psychosomatic Medicine | 44 | 1.3K | 97 | 146 |
| 332 | Technology | 42 | 1.3K | 916 | 799 |
| 333 | exobiology | 9 | 1.3K | 107 | 40 |
| 334 | Materials Science | 23 | 1.3K | 1,748 | 1,318 |
| 335 | Sustainable Development | 4 | 1.3K | 1,796 | 400 |
| 336 | Obstetric Nursing | 22 | 1.3K | 59 | 12 |
| 337 | Energy metabolism | 23 | 1.3K | 156 | 144 |
| 337 | Neuropharmacology | 30 | 1.3K | 66 | 55 |
| 339 | sustainability | 2 | 1.3K | 1,107 | 185 |
| 340 | Biometrics | 48 | 1.3K | 169 | 187 |
| 341 | Oxidative stress | 15 | 1.3K | 211 | 171 |
| 342 | Ethics | 59 | 1.3K | 65 | 56 |
| 342 | Drug design | 46 | 1.3K | 147 | 233 |
| 344 | Recombinant DNA | 45 | 1.2K | 180 | 222 |
| 345 | Molecular cloning | 44 | 1.2K | 159 | 201 |
| 345 | Genetic recombination | 44 | 1.2K | 151 | 198 |
| 347 | Planets | 31 | 1.2K | 475 | 512 |
| 348 | Genetic regulation | 28 | 1.2K | 221 | 290 |
| 349 | Electrophysiology | 46 | 1.2K | 129 | 124 |
| 350 | Interferons | 35 | 1.2K | 2 | 6 |
| 351 | Software Engineering | 8 | 1.2K | 596 | 179 |
| 352 | Medical Anthropology | 25 | 1.2K | 311 | 331 |
| 353 | Health Services Administration | 37 | 1.2K | 126 | 129 |
| 353 | Health Services Research | 45 | 1.2K | 262 | 294 |
| 355 | miniaturization | 14 | 1.2K | 796 | 597 |
| 356 | Immunopharmacology | 28 | 1.2K | 178 | 133 |
| 357 | Public Policy | 71 | 1.1K | 179 | 340 |
| 358 | Environmental Engineering | 20 | 1.1K | 1,438 | 1,066 |
| 359 | Food | 18 | 1.1K | 1,268 | 896 |
| 360 | Geriatric Nursing | 88 | 1.1K | 4 | 7 |
| 361 | Nutrition physiology | 12 | 1.1K | 275 | 129 |
| 362 | Evidence-Based Medicine | 49 | 1.1K | 44 | 53 |
| 363 | paraphilias | 5 | 1.1K | 100 | 15 |
| 364 | Teratology | 20 | 1.1K | 46 | 42 |
| 365 | Ethology | 21 | 1.1K | 533 | 527 |
| 366 | Marine Biology | 34 | 1.0K | 737 | 742 |
| 367 | Synapses | 27 | 1.0K | 26 | 39 |
| 368 | human development | 9 | 1.0K | 427 | 182 |
| 369 | Cognitive Science | 18 | 1.0K | 514 | 418 |
| 370 | Astronomy | 28 | 1.0K | 1,030 | 988 |
| 371 | Proteomics | 17 | 1.0K | 321 | 232 |
| 372 | Microelectronics | 8 | 1.0K | 1,062 | 573 |
| 373 | Immunochemistry | 31 | 1.0K | 143 | 125 |
| 374 | Geriatric Psychiatry | 36 | 1.0K | 127 | 149 |
| 375 | Social welfare | 49 | 1.0K | 51 | 57 |
| 376 | Quality of life | 20 | 1.0K | 388 | 313 |
| 377 | Synaptic Transmission | 25 | 991 | 71 | 65 |
| 378 | Program Evaluation | 37 | 989 | 1 | 4 |
| 379 | management | 5 | 978 | 2,649 | 1,186 |
| 380 | Sexual health | 25 | 970 | 130 | 110 |
| 381 | Lipid metabolism | 5 | 958 | 260 | 70 |
| 381 | Lipid | 5 | 958 | 259 | 71 |
| 383 | Nuclear Engineering | 17 | 957 | 563 | 229 |
| 384 | Fiber Optics | 25 | 954 | 250 | 179 |
| 385 | Neuromuscular diseases | 30 | 946 | 104 | 119 |
| 385 | Developmental Disabilities | 18 | 946 | 332 | 286 |
| 385 | Muscles | 30 | 946 | 152 | 205 |
| 388 | sex crimes | 31 | 943 | 79 | 86 |
| 389 | Leadership | 1 | 941 | 958 | 147 |
| 390 | Youth | 24 | 940 | 146 | 169 |
| 391 | Hospitals | 33 | 937 | 77 | 59 |
| 391 | Autism | 13 | 937 | 259 | 182 |
| 393 | Botany | 10 | 935 | 2,118 | 1,340 |
| 394 | Molecular evolution | 15 | 928 | 575 | 466 |
| 395 | Microscopy | 23 | 924 | 330 | 209 |
| 396 | gastrointestinal tract | 23 | 917 | 24 | 59 |
| 397 | Developmental Neurobiology | 23 | 908 | 62 | 43 |
| 398 | Alzheimer's disease | 75 | 900 | 188 | 276 |
| 399 | Cardiovascular diseases | 39 | 898 | 341 | 413 |
| 400 | Environmental monitoring | 21 | 893 | 1,485 | 1,426 |
| 401 | Radiotherapy | 32 | 890 | 55 | 28 |
| 402 | Electronics | 31 | 866 | 1,064 | 908 |
| 403 | Pharmacognosy | 20 | 859 | 613 | 575 |
| 403 | Asthma | 28 | 859 | 72 | 69 |
| 405 | Antibacterial agents | 9 | 852 | 292 | 102 |
| 406 | Antigens | 23 | 848 | 185 | 159 |
| 407 | Diagnostic Imaging | 39 | 847 | 361 | 478 |
| 407 | Parasites | 19 | 847 | 500 | 319 |
| 409 | DNA repair | 15 | 845 | 62 | 51 |
| 410 | Veterinary Immunology | 8 | 842 | 162 | 56 |
| 410 | North America | 25 | 842 | 159 | 90 |
| 412 | DNA polymerases | 5 | 840 | 266 | 215 |
| 413 | Colloids | 27 | 835 | 1,393 | 1,475 |
| 414 | Artificial Intelligence | 20 | 829 | 1,516 | 1,215 |
| 415 | Cell metabolism | 5 | 828 | 445 | 382 |
| 416 | Automation | 22 | 824 | 823 | 806 |
| 417 | Homeostasis | 4 | 822 | 316 | 370 |
| 418 | Climatology | 9 | 809 | 975 | 580 |
| 419 | Menopause | 14 | 789 | 77 | 41 |
| 420 | Robotics | 8 | 787 | 1,086 | 454 |
| 421 | School Psychology | 27 | 785 | 104 | 120 |
| 422 | Chromosomes | 20 | 777 | 226 | 241 |
| 423 | evaluation | 36 | 768 | 3 | 2 |
| 424 | Health insurance | 36 | 766 | 68 | 118 |
| 425 | Dementia | 63 | 765 | 200 | 272 |
| 426 | locomotion | 17 | 761 | 153 | 128 |
| 426 | posture | 17 | 761 | 153 | 128 |
| 426 | gait | 17 | 761 | 153 | 128 |
| 426 | walking | 17 | 761 | 153 | 128 |
| 430 | RNA | 9 | 750 | 254 | 154 |
| 431 | Medicinal plants | 17 | 747 | 423 | 431 |
| 432 | Chemical analysis | 4 | 741 | 966 | 249 |
| 433 | Telecommunication | 19 | 734 | 1,044 | 838 |
| 434 | Photochemistry | 34 | 730 | 314 | 446 |
| 435 | epilepsy | 14 | 727 | 345 | 194 |
| 436 | Osteoporosis | 10 | 724 | 98 | 32 |
| 437 | mental health policy | 27 | 718 | 31 | 32 |
| 438 | nuclear magnetic resonance | 45 | 712 | 198 | 268 |
| 439 | Light | 31 | 702 | 176 | 502 |
| 440 | cell interaction | 19 | 694 | 287 | 336 |
| 441 | Social problems | 18 | 692 | 173 | 188 |
| 442 | environmental exposure | 23 | 687 | 509 | 601 |
| 443 | Algal blooms | 12 | 684 | 71 | 83 |
| 443 | Cyanobacteria | 12 | 684 | 71 | 83 |
| 443 | microalgae | 12 | 684 | 71 | 83 |
| 446 | Biosensors | 15 | 681 | 498 | 610 |
| 446 | Bioelectronics | 15 | 681 | 393 | 522 |
| 448 | Sound | 7 | 675 | 660 | 209 |
| 449 | Mass Spectrometry | 29 | 674 | 277 | 335 |
| 450 | Surface Chemistry | 21 | 673 | 1,605 | 1,576 |
| 450 | Urban Policy | 7 | 673 | 488 | 186 |
| 452 | Global Health | 43 | 668 | 107 | 158 |
| 453 | urban forestry | 6 | 666 | 102 | 29 |
| 454 | Gene expression regulation | 18 | 665 | 268 | 309 |
| 454 | calcification | 13 | 665 | 184 | 147 |
| 456 | Anxiety Disorders | 8 | 664 | 269 | 230 |
| 456 | Anxiety | 8 | 664 | 267 | 230 |
| 458 | Chemical structure | 63 | 663 | 6 | 30 |
| 459 | Information Science | 16 | 662 | 1,038 | 869 |
| 460 | food technology | 8 | 658 | 1,587 | 975 |
| 461 | Psychiatric Epidemiology | 6 | 657 | 280 | 130 |
| 462 | Orthopedic Surgery | 23 | 655 | 177 | 180 |
| 463 | Computer Graphics | 13 | 653 | 775 | 523 |
| 463 | cardiac catheterization | 27 | 653 | 137 | 117 |
| 465 | urban health | 17 | 651 | 60 | 51 |
| 466 | child mental health | 30 | 649 | 58 | 74 |
| 467 | Vaccination | 22 | 640 | 10 | 27 |
| 468 | Depression | 7 | 632 | 165 | 146 |
| 469 | Dietetics | 18 | 631 | 197 | 166 |
| 470 | health services accessibility | 44 | 630 | 117 | 224 |
| 471 | Genetic epidemiology | 14 | 629 | 80 | 63 |
| 471 | heredity | 14 | 629 | 208 | 113 |
| 473 | Analytical Toxicology | 15 | 626 | 30 | 16 |
| 474 | Community Psychology | 15 | 617 | 178 | 206 |
| 475 | Brain damage | 20 | 614 | 64 | 86 |
| 476 | cloning | 13 | 601 | 204 | 294 |
| 477 | Neurotoxicology | 19 | 600 | 88 | 133 |
| 477 | Educational Psychology | 25 | 600 | 444 | 529 |
| 477 | Bioinorganic chemistry | 11 | 600 | 755 | 471 |
| 480 | Magnetic Resonance Spectroscopy | 26 | 599 | 339 | 315 |
| 481 | actuators | 10 | 594 | 1,236 | 897 |
| 481 | transducers | 10 | 594 | 1,236 | 897 |
| 483 | Behavioral research | 20 | 588 | 49 | 43 |
| 484 | mutation | 10 | 586 | 218 | 176 |
| 484 | Holistic Health | 26 | 586 | 31 | 47 |
| 486 | Patient education | 17 | 582 | 180 | 206 |
| 487 | Functional Genomics | 15 | 577 | 56 | 83 |
| 488 | Physical organic chemistry | 11 | 572 | 764 | 421 |
| 488 | Antibodies | 19 | 572 | 137 | 162 |
| 490 | behavior therapy | 18 | 570 | 289 | 318 |
| 491 | Chronobiology | 4 | 564 | 395 | 80 |
| 491 | Circadian rhythms | 4 | 564 | 256 | 70 |
| 491 | biological clocks | 4 | 564 | 395 | 80 |
| 491 | circadian rhythm | 4 | 564 | 395 | 80 |
| 491 | biological rhythms | 4 | 564 | 362 | 78 |
| 496 | drug resistance | 14 | 561 | 160 | 160 |
| 497 | Endocrine glands | 14 | 560 | 46 | 138 |
| 498 | software | 10 | 550 | 478 | 341 |
| 499 | Quantum Optics | 10 | 546 | 452 | 215 |
| 499 | Atomic spectroscopy | 10 | 546 | 604 | 317 |
| 499 | Laser Spectroscopy | 10 | 546 | 400 | 188 |
| 499 | biomedicine | 26 | 546 | 39 | 106 |
| 503 | Eating Disorders | 14 | 544 | 337 | 294 |
| 503 | Feeding and Eating Disorders | 14 | 544 | 317 | 277 |
| 505 | elder abuse | 22 | 540 | 34 | 60 |
| 506 | sex differences | 6 | 539 | 40 | 21 |
| 507 | sanitation | 7 | 538 | 953 | 926 |
| 508 | occupational diseases | 15 | 534 | 245 | 249 |
| 508 | Neuroendocrinology | 6 | 534 | 48 | 74 |
| 510 | Histochemistry | 27 | 529 | 217 | 307 |
| 510 | ethanol | 33 | 529 | 55 | 117 |
| 512 | Agriculture | 6 | 527 | 1,451 | 722 |
| 513 | Dental Public Health | 22 | 524 | 30 | 20 |
| 514 | Detectors | 9 | 520 | 846 | 446 |
| 515 | Experimental Psychology | 1 | 518 | 901 | 246 |
| 516 | Palliative Care | 39 | 513 | 115 | 196 |
| 516 | Neurovirology | 22 | 513 | 35 | 57 |
| 518 | Intellectual disability | 19 | 511 | 250 | 251 |
| 519 | world | 3 | 510 | 694 | 332 |
| 520 | Polymers | 24 | 507 | 1,788 | 1,821 |
| 520 | Optical materials | 9 | 507 | 1,600 | 1,288 |
| 522 | Culture techniques | 17 | 504 | 66 | 54 |
| 523 | Neurotransmitters | 13 | 498 | 92 | 132 |
| 524 | Ergonomics | 46 | 495 | 152 | 277 |
| 524 | Autoimmunity | 10 | 495 | 324 | 330 |
| 526 | child behavior | 23 | 491 | 68 | 171 |
| 527 | Mathematics | 33 | 490 | 2,328 | 1,989 |
| 527 | Marine Ecology | 12 | 490 | 339 | 193 |
| 527 | Agricultural Ecology | 3 | 490 | 1,011 | 494 |
| 530 | Developmental Genetics | 11 | 489 | 206 | 311 |
| 531 | Wound healing | 5 | 488 | 2 | 5 |
| 531 | wound care | 5 | 488 | 2 | 5 |
| 531 | Fibrosis | 5 | 488 | 2 | 5 |
| 534 | animals | 5 | 481 | 972 | 291 |
| 535 | Geriatric Medicine | 8 | 477 | 45 | 20 |
| 535 | Transportation | 5 | 477 | 1,222 | 671 |
| 537 | Pesticides | 12 | 474 | 201 | 110 |
| 538 | Australia | 26 | 473 | 415 | 479 |
| 539 | Parenteral nutrition | 27 | 471 | 222 | 427 |
| 540 | Comparative Physiology | 14 | 468 | 310 | 321 |
| 540 | Human-Computer Interaction | 10 | 468 | 754 | 543 |
| 542 | Cerebellum | 11 | 461 | 79 | 102 |
| 542 | Cerebellar ataxia | 11 | 461 | 79 | 102 |
| 544 | Economics | 12 | 460 | 2,155 | 1,503 |
| 545 | Randomized Controlled Trials | 28 | 455 | 200 | 217 |
| 545 | Insects | 5 | 455 | 1,116 | 451 |
| 547 | Mycology | 12 | 451 | 741 | 680 |
| 548 | Electrophoresis | 14 | 449 | 686 | 601 |
| 549 | Food Safety | 3 | 442 | 250 | 12 |
| 550 | data collection | 21 | 441 | 5 | 68 |
| 551 | Psychiatric Nursing | 29 | 440 | 88 | 131 |
| 552 | Contraception | 21 | 434 | 137 | 175 |
| 552 | Geriatric Oncology | 24 | 434 | 86 | 203 |
| 554 | Nanostructures | 5 | 433 | 1,568 | 923 |
| 554 | glycoproteins | 10 | 433 | 184 | 172 |
| 554 | Glycoconjugates | 10 | 433 | 184 | 172 |
| 554 | glycolipids | 10 | 433 | 184 | 172 |
| 558 | nursing ethics | 5 | 431 | 141 | 43 |
| 559 | Environmental pollutants | 17 | 430 | 832 | 1,081 |
| 560 | Cytoskeleton | 10 | 428 | 97 | 88 |
| 560 | gene transfer | 9 | 428 | 74 | 47 |
| 560 | genetic transformation | 9 | 428 | 74 | 47 |
| 563 | Plant cells | 3 | 427 | 932 | 819 |
| 564 | biological factors | 17 | 426 | 695 | 763 |
| 565 | Earth Sciences | 16 | 422 | 1,461 | 1,408 |
| 566 | breastfeeding | 16 | 421 | 103 | 109 |
| 567 | Nuclear Medicine | 18 | 418 | 310 | 352 |
| 567 | dissociative disorders | 8 | 418 | 26 | 11 |
| 569 | Biofilms | 5 | 413 | 78 | 36 |
| 569 | personality | 7 | 413 | 930 | 782 |
| 571 | Water pollution | 13 | 408 | 1,347 | 1,482 |
| 572 | Microbial Biotechnology | 5 | 405 | 722 | 318 |
| 572 | Immunogenetics | 9 | 405 | 289 | 202 |
| 574 | Population | 3 | 395 | 846 | 345 |
| 575 | vitamin C | 12 | 392 | 77 | 159 |
| 575 | vitamin E | 12 | 392 | 77 | 159 |
| 577 | pollutants | 12 | 388 | 843 | 982 |
| 578 | Systems Engineering | 17 | 387 | 839 | 916 |
| 579 | feeding behavior | 10 | 386 | 343 | 347 |
| 580 | Animal Physiology | 2 | 384 | 178 | 59 |
| 580 | Natural selection | 2 | 384 | 178 | 59 |
| 580 | Animal genetics | 2 | 384 | 665 | 213 |
| 580 | genetic selection | 2 | 384 | 178 | 59 |
| 584 | Food Policy | 1 | 382 | 562 | 147 |
| 584 | Cardiac electrophysiology | 7 | 382 | 138 | 126 |
| 584 | arrhythmia | 7 | 382 | 138 | 126 |
| 587 | hospice care | 25 | 381 | 68 | 109 |
| 588 | Social Issues | 7 | 380 | 143 | 99 |
| 589 | Water | 8 | 377 | 1,454 | 1,476 |
| 590 | Reproductive toxicology | 16 | 376 | 71 | 153 |
| 590 | families | 19 | 376 | 258 | 266 |
| 592 | Genetic Counseling | 22 | 375 | 42 | 60 |
| 592 | Information Systems | 22 | 375 | 321 | 516 |
| 594 | Water Microbiology | 4 | 373 | 347 | 112 |
| 595 | Emergency Medical Services | 14 | 372 | 184 | 145 |
| 596 | musculoskeletal system | 7 | 370 | 59 | 37 |
| 597 | Telemedicine | 19 | 367 | 54 | 92 |
| 598 | international cooperation | 2 | 366 | 745 | 228 |
| 599 | Biodiversity | 6 | 364 | 1,558 | 1,040 |
| 600 | Demography | 2 | 362 | 779 | 272 |
| 600 | chronic disease | 15 | 362 | 93 | 123 |
| 602 | Pharmacogenomics | 11 | 361 | 58 | 93 |
| 603 | Extracellular matrix | 3 | 358 | 232 | 151 |
| 603 | collagen | 3 | 358 | 243 | 157 |
| 605 | Lymphoma | 17 | 352 | 63 | 44 |
| 606 | Metastasis | 4 | 351 | 114 | 125 |
| 607 | Hydrometeorology | 3 | 349 | 193 | 135 |
| 607 | amino acids | 14 | 349 | 116 | 204 |
| 609 | Bacteria | 7 | 348 | 167 | 210 |
| 610 | Tissue Engineering | 5 | 346 | 242 | 129 |
| 610 | Suicide | 13 | 346 | 186 | 201 |
| 612 | viral genetics | 3 | 341 | 250 | 283 |
| 613 | Mutagenesis | 4 | 339 | 328 | 89 |
| 613 | Aggression | 14 | 339 | 153 | 246 |
| 615 | pain management | 14 | 338 | 189 | 226 |
| 616 | Apoptosis | 4 | 335 | 181 | 65 |
| 616 | neurotoxins | 4 | 335 | 181 | 65 |
| 616 | Neurotoxic agents | 4 | 335 | 181 | 65 |
| 616 | Religion and Psychology | 12 | 335 | 123 | 68 |
| 616 | Hippocampus | 3 | 335 | 283 | 182 |
| 616 | Nerve regeneration | 4 | 335 | 181 | 65 |
| 622 | Hemostasis | 14 | 332 | 270 | 272 |
| 622 | food industry | 1 | 332 | 1,419 | 162 |
| 624 | Geology | 3 | 329 | 2,514 | 1,394 |
| 625 | Multiple Myeloma | 16 | 325 | 67 | 45 |
| 626 | Image Processing | 11 | 324 | 1,188 | 1,165 |
| 626 | Electron Microscopy | 8 | 324 | 198 | 97 |
| 628 | Growth factors | 6 | 322 | 117 | 177 |
| 629 | Hematopoietic stem cell transplantation | 7 | 318 | 201 | 203 |
| 630 | War and Society | 1 | 317 | 369 | 129 |
| 630 | warfare | 1 | 317 | 495 | 147 |
| 630 | peace | 1 | 317 | 780 | 230 |
| 633 | Cell communication | 6 | 316 | 351 | 325 |
| 634 | Criminology | 11 | 314 | 499 | 385 |
| 634 | Cardiac rehabilitation | 6 | 314 | 49 | 31 |
| 634 | computer networks | 12 | 314 | 1,229 | 1,268 |
| 637 | Linguistics | 6 | 313 | 926 | 513 |
| 638 | Information Theory | 7 | 312 | 936 | 654 |
| 639 | Developing countries | 16 | 311 | 861 | 1,050 |
| 640 | drug control | 10 | 310 | 139 | 137 |
| 641 | Respiratory system | 22 | 309 | 108 | 272 |
| 642 | Electrochemistry | 8 | 308 | 2,407 | 1,881 |
| 643 | Healing | 22 | 303 | 4 | 16 |
| 644 | Environmental Chemistry | 7 | 302 | 1,333 | 1,344 |
| 644 | environmental protection | 15 | 302 | 1,613 | 2,068 |
| 646 | Maternal health services | 11 | 301 | 125 | 129 |
| 647 | movement | 9 | 295 | 112 | 133 |
| 648 | Cell survival | 8 | 293 | 51 | 68 |
| 648 | aquatic organisms | 2 | 293 | 4 | 3 |
| 648 | molecular chaperones | 8 | 293 | 60 | 69 |
| 651 | Emerging infectious diseases | 7 | 292 | 131 | 126 |
| 652 | Neonatology | 10 | 291 | 203 | 198 |
| 652 | Genes | 13 | 291 | 429 | 485 |
| 654 | plant molecular biology | 5 | 288 | 1,095 | 1,068 |
| 654 | Plants | 5 | 288 | 1,580 | 1,206 |
| 656 | Carbohydrates | 9 | 287 | 177 | 218 |
| 657 | Agricultural Chemistry | 4 | 286 | 1,919 | 1,300 |
| 658 | Molecules | 4 | 285 | 1,347 | 676 |
| 659 | Parkinson's disease | 2 | 283 | 291 | 104 |
| 659 | allied health | 4 | 283 | 209 | 86 |
| 661 | pharmaceutical industry | 19 | 281 | 80 | 162 |
| 662 | Evolutionary Genetics | 9 | 280 | 227 | 245 |
| 662 | Molecular Epidemiology | 9 | 280 | 227 | 245 |
| 664 | Wireless Communication Systems | 12 | 279 | 1,235 | 1,174 |
| 665 | Neuroimaging | 22 | 276 | 45 | 102 |
| 665 | Crystallography | 8 | 276 | 1,059 | 496 |
| 667 | Otolaryngology | 20 | 275 | 142 | 217 |
| 667 | Ultrasonics | 7 | 275 | 742 | 752 |
| 669 | X-ray crystallography | 7 | 274 | 336 | 174 |
| 670 | Geriatric Pharmacology | 9 | 269 | 110 | 121 |
| 671 | cell movement | 5 | 266 | 149 | 139 |
| 671 | Autoimmune diseases | 12 | 266 | 215 | 366 |
| 673 | mental health promotion | 19 | 264 | 16 | 67 |
| 674 | Hydrology | 8 | 262 | 1,473 | 1,322 |
| 674 | Radioisotopes | 12 | 262 | 458 | 348 |
| 676 | traffic safety | 16 | 259 | 48 | 69 |
| 677 | Insect biochemistry | 7 | 258 | 228 | 259 |
| 678 | Oligosaccharide | 8 | 257 | 133 | 188 |
| 679 | Molecular ecology | 6 | 256 | 703 | 788 |
| 679 | Fish diseases | 9 | 256 | 34 | 50 |
| 679 | Pregnancy | 15 | 256 | 239 | 359 |
| 682 | Energy Policy | 3 | 255 | 2,500 | 1,966 |
| 683 | crime victims | 11 | 254 | 23 | 25 |
| 684 | Socialization | 4 | 253 | 455 | 365 |
| 685 | Food Microbiology | 5 | 252 | 907 | 899 |
| 685 | Microcirculation | 12 | 252 | 145 | 220 |
| 687 | organization | 20 | 251 | 222 | 600 |
| 687 | health planning | 15 | 251 | 899 | 1,029 |
| 689 | Industry | 1 | 250 | 443 | 178 |
| 690 | Hallucinogens | 9 | 249 | 54 | 68 |
| 691 | Oral Medicine | 14 | 248 | 253 | 235 |
| 692 | Population Genetics | 5 | 247 | 874 | 799 |
| 692 | biochemical markers | 8 | 247 | 269 | 231 |
| 692 | Fisheries | 6 | 247 | 1,086 | 857 |
| 695 | embryonic development | 4 | 246 | 320 | 205 |
| 696 | Marine Biotechnology | 11 | 244 | 43 | 90 |
| 696 | Decision making | 14 | 244 | 555 | 781 |
| 698 | Developmental Toxicology | 8 | 242 | 7 | 20 |
| 698 | teratogens | 8 | 242 | 7 | 20 |
| 698 | Fungi | 2 | 242 | 1,117 | 708 |
| 701 | Flow cytometry | 4 | 241 | 285 | 174 |
| 702 | Social behavior | 9 | 240 | 643 | 736 |
| 703 | Cybernetics | 5 | 239 | 1,217 | 972 |
| 703 | cell membrane | 9 | 239 | 307 | 414 |
| 705 | Cheminformatics | 1 | 234 | 594 | 246 |
| 706 | hygiene | 5 | 232 | 343 | 211 |
| 707 | role | 2 | 231 | 562 | 328 |
| 708 | Sonochemistry | 1 | 230 | 1,118 | 548 |
| 709 | Criminal psychology | 14 | 228 | 327 | 439 |
| 710 | disease vectors | 11 | 227 | 409 | 565 |
| 710 | Aquaculture | 7 | 227 | 927 | 826 |
| 712 | Bipolar Disorder | 9 | 225 | 157 | 224 |
| 712 | Birth control | 8 | 225 | 207 | 233 |
| 714 | Educational Technology | 8 | 224 | 963 | 950 |
| 714 | Primates | 7 | 224 | 417 | 355 |
| 716 | space environment | 10 | 223 | 87 | 90 |
| 716 | energy resources | 2 | 223 | 1,565 | 1,236 |
| 718 | alcohol | 10 | 222 | 13 | 15 |
| 719 | ecosystem | 14 | 221 | 546 | 955 |
| 720 | Radiation Oncology | 7 | 219 | 174 | 161 |
| 720 | liver | 8 | 219 | 130 | 127 |
| 720 | sports injuries | 11 | 219 | 180 | 220 |
| 723 | Drug discovery | 8 | 218 | 70 | 105 |
| 724 | Forensic Psychology | 8 | 217 | 201 | 163 |
| 725 | Clinical Pharmacology | 14 | 215 | 525 | 722 |
| 725 | Food additives | 4 | 215 | 919 | 830 |
| 727 | Breeding | 9 | 213 | 635 | 723 |
| 728 | Mobile Computing | 7 | 211 | 705 | 616 |
| 728 | Emotions | 8 | 211 | 332 | 482 |
| 730 | Microwaves | 2 | 210 | 1,436 | 656 |
| 731 | educational planning | 1 | 209 | 754 | 257 |
| 732 | Industrial Safety | 9 | 208 | 585 | 640 |
| 732 | Invertebrates | 12 | 208 | 205 | 292 |
| 732 | disease outbreaks | 7 | 208 | 294 | 355 |
| 732 | Trace elements | 3 | 208 | 259 | 173 |
| 736 | at-risk youth | 7 | 206 | 48 | 98 |
| 737 | women | 12 | 205 | 307 | 254 |
| 738 | Biomass Energy | 2 | 204 | 2,630 | 1,913 |
| 738 | Jurisprudence | 16 | 204 | 322 | 453 |
| 740 | Computer Vision | 5 | 201 | 874 | 822 |
| 740 | Histocompatibility Testing | 7 | 201 | 234 | 234 |
| 742 | Behavioral Genetics | 6 | 197 | 136 | 184 |
| 743 | healthcare disparities | 17 | 195 | 119 | 250 |
| 743 | Vocational guidance | 2 | 195 | 1,066 | 632 |
| 743 | Endocrine system | 33 | 195 | 106 | 116 |
| 746 | Data Mining | 12 | 194 | 347 | 652 |
| 746 | Biological Systems | 5 | 194 | 369 | 309 |
| 746 | Reproductive health | 8 | 194 | 384 | 420 |
| 749 | X-rays | 10 | 192 | 208 | 195 |
| 750 | dual diagnosis | 17 | 191 | 11 | 18 |
| 750 | Interactive multimedia | 3 | 191 | 556 | 392 |
| 750 | Europe | 13 | 191 | 1,365 | 1,524 |
| 753 | Hemophilia | 8 | 190 | 201 | 193 |
| 754 | Multimedia Systems | 4 | 188 | 1,594 | 997 |
| 754 | Africa | 6 | 188 | 1,052 | 608 |
| 754 | atmospheric models | 6 | 188 | 440 | 513 |
| 757 | mental processes | 18 | 187 | 77 | 165 |
| 758 | Ethnology | 7 | 186 | 944 | 641 |
| 758 | peptides | 16 | 186 | 182 | 352 |
| 760 | biopolymers | 6 | 185 | 796 | 772 |
| 761 | Autoantibodies | 8 | 184 | 272 | 422 |
| 762 | Nuclear Physics | 12 | 183 | 2,265 | 2,368 |
| 763 | Happiness | 3 | 182 | 441 | 289 |
| 764 | community development | 15 | 181 | 157 | 324 |
| 764 | race relations | 4 | 181 | 516 | 324 |
| 766 | Pediatric Dermatology | 10 | 179 | 146 | 146 |
| 767 | Nanomedicine | 6 | 178 | 84 | 164 |
| 768 | Hearing | 14 | 177 | 263 | 394 |
| 768 | Biomolecules | 2 | 177 | 579 | 377 |
| 770 | Computer-Aided Design | 4 | 176 | 1,042 | 728 |
| 770 | Oligosaccharides | 2 | 176 | 311 | 129 |
| 770 | multimedia | 2 | 176 | 613 | 397 |
| 773 | Enteral nutrition | 14 | 175 | 287 | 632 |
| 773 | Epidemics | 4 | 175 | 402 | 399 |
| 775 | scientific societies | 11 | 174 | 289 | 431 |
| 776 | Economic History | 8 | 173 | 2,027 | 1,729 |
| 777 | Environmental Law | 8 | 172 | 590 | 1,109 |
| 777 | Morphology | 10 | 172 | 415 | 434 |
| 777 | industrial hygiene | 15 | 172 | 306 | 360 |
| 777 | China | 9 | 172 | 1,637 | 1,761 |
| 781 | nuclear magnetic resonance spectroscopy | 23 | 171 | 169 | 378 |
| 781 | Appetite | 6 | 171 | 410 | 507 |
| 783 | Cultural diversity | 4 | 170 | 157 | 145 |
| 783 | community organization | 14 | 170 | 14 | 24 |
| 785 | rare diseases | 3 | 167 | 545 | 396 |
| 786 | Forensic Pathology | 6 | 166 | 76 | 38 |
| 787 | Disease management | 9 | 164 | 29 | 26 |
| 787 | minority groups | 14 | 164 | 11 | 23 |
| 789 | Early Childhood Education | 8 | 163 | 330 | 320 |
| 790 | rural health | 5 | 162 | 129 | 114 |
| 791 | Documentation | 1 | 161 | 491 | 167 |
| 792 | Occupational Health | 14 | 160 | 344 | 568 |
| 792 | Asia | 11 | 160 | 1,396 | 1,476 |
| 794 | Soft Condensed Matter | 5 | 159 | 803 | 741 |
| 794 | Ion channels | 7 | 159 | 29 | 52 |
| 796 | Yeast | 4 | 158 | 341 | 323 |
| 796 | Gastrointestinal diseases | 9 | 158 | 261 | 335 |
| 798 | Quality Control | 4 | 157 | 1,507 | 1,254 |
| 798 | pigments | 3 | 157 | 893 | 596 |
| 800 | Risk | 4 | 155 | 437 | 404 |
| 801 | Forensic Psychiatry | 7 | 154 | 327 | 324 |
| 801 | primary prevention | 6 | 154 | 233 | 279 |
| 803 | Retina | 2 | 153 | 188 | 312 |
| 803 | eye | 2 | 153 | 236 | 323 |
| 805 | Structure-activity relationship | 1 | 151 | 500 | 192 |
| 806 | Metallurgy | 2 | 150 | 2,321 | 1,383 |
| 806 | Combinatorial chemistry | 5 | 150 | 539 | 650 |
| 806 | Multiple sclerosis | 7 | 150 | 312 | 269 |
| 809 | Development Economics | 1 | 149 | 775 | 272 |
| 809 | Immunotoxicology | 8 | 149 | 98 | 119 |
| 811 | teratogenic agents | 2 | 148 | 307 | 58 |
| 812 | Optical Communications | 4 | 147 | 685 | 451 |
| 812 | Social policy | 10 | 147 | 498 | 586 |
| 814 | Oceanography | 3 | 146 | 1,530 | 1,227 |
| 814 | Mechatronics | 3 | 146 | 897 | 668 |
| 814 | residential treatment | 5 | 146 | 97 | 75 |
| 814 | school psychologists | 5 | 146 | 138 | 184 |
| 818 | System analysis | 10 | 144 | 1,325 | 1,650 |
| 818 | Chromatographic analysis | 8 | 144 | 1,121 | 1,170 |
| 820 | polymerization | 6 | 141 | 2,586 | 2,478 |
| 821 | Protein folding | 5 | 140 | 43 | 59 |
| 821 | prions | 5 | 140 | 31 | 38 |
| 823 | child sexual abuse | 5 | 139 | 76 | 72 |
| 824 | Humanities | 7 | 138 | 1,161 | 871 |
| 824 | Nutritional support | 2 | 138 | 218 | 179 |
| 824 | Uncertainty | 1 | 138 | 342 | 136 |
| 824 | Acarology | 4 | 138 | 227 | 157 |
| 824 | Mites | 4 | 138 | 345 | 192 |
| 824 | Ticks | 4 | 138 | 223 | 157 |
| 824 | Acari | 4 | 138 | 223 | 157 |
| 831 | Herbal medicine | 3 | 137 | 734 | 703 |
| 831 | Aquatic animals | 8 | 137 | 60 | 101 |
| 833 | Socioeconomic Factors | 6 | 136 | 491 | 609 |
| 833 | food contamination | 3 | 136 | 1,068 | 619 |
| 835 | Numerical Analysis | 9 | 135 | 1,496 | 1,460 |
| 835 | Biodiversity conservation | 2 | 135 | 1,706 | 1,543 |
| 835 | Blood vessels | 9 | 135 | 145 | 277 |
| 835 | Longevity | 2 | 135 | 225 | 132 |
| 835 | rejuvenation | 2 | 135 | 163 | 106 |
| 840 | Oral Pathology | 1 | 134 | 186 | 67 |
| 840 | global environmental change | 2 | 134 | 972 | 807 |
| 840 | Genetic markers | 4 | 134 | 172 | 116 |
| 843 | Statistical physics | 8 | 133 | 2,077 | 2,246 |
| 844 | disabilities | 14 | 132 | 226 | 481 |
| 845 | Experimental Design | 3 | 129 | 250 | 224 |
| 845 | nursing education | 11 | 129 | 24 | 54 |
| 845 | economic policy | 8 | 129 | 1,475 | 1,362 |
| 848 | Development | 2 | 128 | 955 | 762 |
| 848 | Economic Assistance | 2 | 128 | 838 | 701 |
| 850 | Egypt | 1 | 127 | 1,131 | 438 |
| 851 | Human biology | 3 | 126 | 633 | 396 |
| 852 | Protozoa | 5 | 125 | 284 | 334 |
| 852 | environmental issues | 1 | 125 | 801 | 379 |
| 854 | biobanks | 5 | 123 | 56 | 39 |
| 854 | Fish | 2 | 123 | 480 | 195 |
| 854 | motor skills | 6 | 123 | 109 | 154 |
| 857 | Anthropology | 10 | 121 | 804 | 982 |
| 857 | Adult Education | 9 | 121 | 267 | 308 |
| 857 | Industrial Policy | 5 | 121 | 360 | 400 |
| 860 | occupational health and safety | 6 | 120 | 83 | 82 |
| 860 | Genetic translocation | 4 | 120 | 149 | 175 |
| 860 | Molecular Imaging | 6 | 120 | 392 | 508 |
| 860 | Intelligence | 1 | 120 | 435 | 240 |
| 860 | plasmids | 4 | 120 | 149 | 175 |
| 865 | Occupational Therapy | 15 | 115 | 328 | 460 |
| 865 | Machining | 3 | 115 | 144 | 72 |
| 867 | internet | 14 | 114 | 634 | 1,326 |
| 867 | Zoonoses | 6 | 114 | 137 | 251 |
| 869 | Biomarkers | 4 | 113 | 311 | 262 |
| 870 | weight loss | 6 | 112 | 70 | 88 |
| 871 | Semantics | 6 | 111 | 116 | 135 |
| 871 | Exercise | 11 | 111 | 719 | 1,081 |
| 873 | risk factors | 6 | 110 | 425 | 557 |
| 873 | food handling | 2 | 110 | 1,126 | 984 |
| 873 | water supply | 3 | 110 | 849 | 836 |
| 873 | Algae | 3 | 110 | 704 | 658 |
| 877 | Environmental risk assessment | 2 | 109 | 534 | 309 |
| 877 | sadness | 4 | 109 | 170 | 132 |
| 877 | men | 5 | 109 | 163 | 209 |
| 877 | death | 4 | 109 | 247 | 171 |
| 877 | antisocial personality disorder | 4 | 109 | 170 | 132 |
| 882 | Computer Science | 6 | 108 | 1,489 | 1,416 |
| 883 | Language Disorders | 11 | 107 | 390 | 630 |
| 883 | Cell surface receptors | 3 | 107 | 103 | 51 |
| 883 | Culture | 4 | 107 | 941 | 618 |
| 886 | energy conservation | 2 | 106 | 2,366 | 2,133 |
| 887 | Biofeedback | 2 | 105 | 141 | 119 |
| 888 | Crystallization | 3 | 104 | 506 | 274 |
| 889 | Cellular senescence | 3 | 102 | 284 | 622 |
| 889 | Teaching | 9 | 102 | 985 | 1,320 |
| 891 | Functional foods | 2 | 101 | 490 | 334 |
| 891 | Communication | 11 | 101 | 1,048 | 1,660 |
| 891 | Phytotherapy | 2 | 101 | 867 | 649 |
| 894 | Public opinion | 4 | 100 | 349 | 400 |
| 895 | Fishery management | 3 | 99 | 826 | 662 |
| 895 | Hospitality industry | 1 | 99 | 811 | 369 |
| 897 | Student Health Services | 7 | 98 | 164 | 247 |
| 898 | Genetic Toxicology | 3 | 97 | 413 | 506 |
| 898 | behavior modification | 5 | 97 | 301 | 462 |
| 900 | Chromatography | 6 | 96 | 1,119 | 1,306 |
| 900 | Seaweed | 2 | 96 | 653 | 588 |
| 900 | African Americans | 3 | 96 | 193 | 104 |
| 900 | African American | 2 | 96 | 199 | 85 |
| 904 | Environmental Management | 1 | 95 | 3,807 | 3,054 |
| 904 | environmental control | 1 | 95 | 385 | 208 |
| 906 | Brachytherapy | 11 | 94 | 59 | 106 |
| 907 | Plant Ecology | 2 | 93 | 1,879 | 1,755 |
| 908 | Cardiovascular Pharmacology | 4 | 92 | 189 | 253 |
| 908 | Sexuality | 6 | 92 | 159 | 226 |
| 908 | mammals | 2 | 92 | 1,186 | 792 |
| 911 | acupuncture | 15 | 91 | 51 | 60 |
| 911 | DNA | 4 | 91 | 491 | 514 |
| 913 | Molecular Spectroscopy | 5 | 90 | 1,470 | 1,619 |
| 913 | ethnic groups | 7 | 90 | 179 | 289 |
| 915 | Information Technology | 8 | 89 | 1,494 | 2,136 |
| 915 | optical instruments | 4 | 89 | 268 | 282 |
| 915 | optical phenomena | 4 | 89 | 84 | 102 |
| 918 | Electrocardiography | 5 | 87 | 223 | 199 |
| 918 | Cost control | 9 | 87 | 53 | 92 |
| 918 | natural products | 4 | 87 | 1,587 | 1,540 |
| 918 | toxicity testing | 3 | 87 | 614 | 653 |
| 922 | Chemical Ecology | 3 | 86 | 511 | 612 |
| 922 | Neuroplasticity | 2 | 86 | 328 | 336 |
| 922 | neuronal plasticity | 2 | 86 | 126 | 199 |
| 925 | Engineering Mathematics | 3 | 85 | 1,916 | 1,366 |
| 925 | Avionics | 2 | 85 | 144 | 95 |
| 927 | Neuroanatomy | 4 | 84 | 153 | 229 |
| 927 | Fisheries Law | 2 | 84 | 174 | 169 |
| 927 | Genetic disorders | 5 | 84 | 301 | 404 |
| 927 | Atherosclerosis | 6 | 84 | 79 | 183 |
| 927 | Animal welfare | 3 | 84 | 241 | 275 |
| 927 | Mitochondria | 2 | 84 | 335 | 333 |
| 927 | fisheries management | 2 | 84 | 174 | 169 |
| 927 | crime | 3 | 84 | 691 | 541 |
| 935 | Phonetics | 3 | 82 | 318 | 314 |
| 935 | speech therapy | 3 | 82 | 384 | 336 |
| 935 | correctional psychology | 3 | 82 | 229 | 280 |
| 935 | language therapy | 3 | 82 | 156 | 146 |
| 935 | plasma | 8 | 82 | 37 | 80 |
| 935 | Extreme environments | 2 | 82 | 291 | 313 |
| 941 | Organ transplantation | 9 | 81 | 156 | 220 |
| 941 | mathematical concepts | 3 | 81 | 405 | 270 |
| 943 | Surface-Active Agents | 3 | 80 | 1,144 | 1,386 |
| 943 | pediatric pharmacology | 7 | 80 | 35 | 29 |
| 943 | Intelligent Tutoring Systems | 1 | 80 | 124 | 19 |
| 943 | Surface properties | 3 | 80 | 1,196 | 1,440 |
| 947 | Plant breeding | 6 | 79 | 500 | 754 |
| 947 | Mitochondrial DNA | 2 | 79 | 287 | 50 |
| 947 | Middle East | 4 | 79 | 895 | 718 |
| 947 | eugenics | 6 | 79 | 324 | 515 |
| 951 | Special Education | 4 | 78 | 693 | 631 |
| 951 | Precision medicine | 9 | 78 | 75 | 173 |
| 951 | ethnicity | 11 | 78 | 280 | 502 |
| 951 | preimplantation genetic diagnosis | 3 | 78 | 412 | 399 |
| 951 | embryo transfer | 3 | 78 | 424 | 410 |
| 956 | Operations Research | 7 | 76 | 1,499 | 1,915 |
| 956 | Diagnosis | 6 | 76 | 210 | 359 |
| 956 | Biogeochemistry | 1 | 76 | 1,504 | 1,261 |
| 956 | Disability Law | 4 | 76 | 133 | 174 |
| 956 | Communication in medicine | 7 | 76 | 310 | 514 |
| 961 | Archaeology | 4 | 75 | 1,107 | 1,011 |
| 962 | Psychoanalysis | 9 | 74 | 152 | 162 |
| 962 | Radio | 5 | 74 | 1,089 | 1,339 |
| 964 | Information society | 3 | 73 | 123 | 151 |
| 965 | Community Health Nursing | 7 | 72 | 12 | 53 |
| 965 | Genetic Research | 2 | 72 | 207 | 167 |
| 965 | monitoring | 5 | 72 | 159 | 193 |
| 968 | Mechanical Engineering | 4 | 71 | 2,100 | 1,857 |
| 968 | Andrology | 1 | 71 | 868 | 576 |
| 968 | Androgens | 1 | 71 | 362 | 289 |
| 971 | sports administration | 2 | 70 | 407 | 314 |
| 971 | disaster relief | 2 | 70 | 262 | 249 |
| 973 | Chemical Engineering | 4 | 69 | 3,367 | 3,810 |
| 973 | Language and Culture | 1 | 69 | 342 | 100 |
| 973 | cross-cultural comparison | 6 | 69 | 304 | 513 |
| 976 | health workforce | 3 | 68 | 165 | 291 |
| 976 | Antiviral agents | 8 | 68 | 124 | 292 |
| 976 | hazard mitigation | 1 | 68 | 1,646 | 1,132 |
| 976 | Pathogens | 1 | 68 | 248 | 118 |
| 976 | natural disasters | 1 | 68 | 2,009 | 1,515 |
| 981 | Zoology | 4 | 67 | 2,127 | 2,041 |
| 981 | Structural biology | 3 | 67 | 41 | 111 |
| 983 | Religion | 6 | 66 | 603 | 456 |
| 984 | Plastics | 2 | 65 | 1,931 | 1,580 |
| 984 | nucleotides | 4 | 65 | 266 | 204 |
| 986 | Distributed Databases | 2 | 64 | 219 | 173 |
| 986 | Library Science | 9 | 64 | 428 | 656 |
| 988 | Cognitive Therapy | 3 | 63 | 613 | 664 |
| 988 | Nuclear family | 5 | 63 | 112 | 132 |
| 990 | Manufacturing Processes | 3 | 62 | 2,132 | 2,160 |
| 991 | Internet of Things | 4 | 61 | 949 | 1,321 |
| 991 | Fertilization | 5 | 61 | 44 | 97 |
| 991 | Melanoma | 5 | 61 | 109 | 266 |
| 991 | gametes | 5 | 61 | 44 | 97 |
| 995 | school environment | 2 | 60 | 135 | 139 |
| 996 | Political Science | 5 | 59 | 1,306 | 1,284 |
| 996 | Learning disabilities | 4 | 59 | 711 | 881 |
| 996 | tomography | 12 | 59 | 116 | 340 |
| 999 | Intelligent Transportation Systems | 2 | 58 | 1,279 | 1,377 |
| 999 | Drug targeting | 3 | 58 | 294 | 543 |