| 1 | Physics | 4,115 | 344.5K | 64 | 69 |
| 2 | Chemistry | 4,142 | 293.7K | 40 | 41 |
| 3 | Science | 3,342 | 269.0K | 55 | 87 |
| 4 | Biology | 2,564 | 260.2K | 90 | 85 |
| 5 | Biochemistry | 4,719 | 172.4K | 28 | 58 |
| 6 | Materials | 3,178 | 166.6K | 20 | 27 |
| 7 | Molecular Biology | 3,613 | 156.6K | 15 | 64 |
| 8 | Nanotechnology | 2,414 | 146.0K | 14 | 22 |
| 9 | Natural history | 176 | 131.7K | 266 | 81 |
| 10 | Medicine | 3,728 | 119.0K | 46 | 112 |
| 11 | Microbiology | 1,954 | 118.6K | 27 | 45 |
| 12 | Biotechnology | 2,199 | 102.3K | 6 | 19 |
| 13 | Biocompatible Materials | 1,644 | 96.2K | 9 | 11 |
| 14 | Research | 3,201 | 91.6K | 19 | 63 |
| 15 | Materials Science | 1,731 | 84.7K | 22 | 30 |
| 16 | Astrophysics | 1,279 | 84.3K | 115 | 134 |
| 17 | Spectrum analysis | 1,150 | 71.8K | 60 | 69 |
| 18 | Bioengineering | 1,466 | 68.5K | 6 | 22 |
| 19 | Neurology | 1,553 | 68.3K | 83 | 136 |
| 20 | Pharmacology | 2,181 | 64.9K | 4 | 16 |
| 21 | Biophysics | 1,912 | 59.2K | 18 | 39 |
| 22 | Polymers | 1,695 | 58.7K | 21 | 24 |
| 23 | nanoscience | 953 | 56.0K | 9 | 19 |
| 24 | Cell Biology | 640 | 54.5K | 99 | 112 |
| 25 | Cytology | 1,249 | 52.8K | 39 | 125 |
| 26 | Chemical Engineering | 1,300 | 48.1K | 26 | 47 |
| 27 | Ecology | 839 | 45.7K | 148 | 185 |
| 28 | Environment | 561 | 44.9K | 93 | 87 |
| 29 | Nuclear Physics | 1,557 | 44.2K | 119 | 189 |
| 30 | Cancer | 785 | 44.2K | 38 | 46 |
| 31 | Environmental Health | 811 | 43.3K | 48 | 67 |
| 32 | Optical materials | 610 | 41.4K | 24 | 22 |
| 33 | Biomedical Engineering | 1,186 | 40.6K | 12 | 24 |
| 34 | Human genetics | 217 | 40.1K | 109 | 131 |
| 35 | polymerization | 1,281 | 40.0K | 23 | 30 |
| 36 | Catalysis | 948 | 38.8K | 33 | 63 |
| 37 | Pollution | 704 | 38.3K | 81 | 107 |
| 38 | Toxicology | 844 | 34.1K | 22 | 22 |
| 39 | Genetics | 424 | 33.9K | 126 | 117 |
| 40 | Biochemical Engineering | 695 | 33.7K | 31 | 59 |
| 41 | Electronics | 1,259 | 33.7K | 9 | 23 |
| 42 | Electrochemistry | 1,651 | 33.7K | 5 | 16 |
| 43 | Solid State Physics | 1,116 | 32.5K | 77 | 105 |
| 44 | miniaturization | 414 | 31.0K | 16 | 31 |
| 45 | Oncology | 207 | 30.1K | 75 | 30 |
| 46 | Nanostructured Materials | 722 | 30.1K | 25 | 37 |
| 47 | Condensed Matter | 900 | 29.0K | 97 | 131 |
| 48 | Botany | 427 | 27.6K | 161 | 120 |
| 49 | Virology | 358 | 26.5K | 116 | 149 |
| 50 | Microorganisms | 89 | 26.1K | 24 | 1 |
| 51 | Astronomy | 455 | 25.2K | 250 | 274 |
| 52 | Technology | 1,027 | 25.1K | 15 | 25 |
| 53 | Microelectronics | 420 | 24.3K | 18 | 34 |
| 54 | Geophysics | 598 | 24.2K | 128 | 131 |
| 55 | Environmental Engineering | 422 | 24.1K | 62 | 79 |
| 56 | Meteorology | 553 | 23.9K | 44 | 65 |
| 57 | Quantum Gravity | 567 | 23.8K | 85 | 112 |
| 58 | Colloids | 522 | 22.5K | 71 | 66 |
| 59 | Energy Conversion | 213 | 22.4K | 17 | 25 |
| 60 | Climatology | 483 | 21.1K | 22 | 36 |
| 61 | Microbial Ecology | 215 | 20.5K | 72 | 64 |
| 62 | Composite Materials | 491 | 20.5K | 34 | 52 |
| 63 | environmental pollution | 480 | 20.4K | 65 | 83 |
| 64 | Environmental monitoring | 442 | 20.3K | 19 | 30 |
| 65 | Surface Chemistry | 536 | 20.2K | 58 | 70 |
| 66 | Pharmaceutical Chemistry | 736 | 20.1K | 17 | 64 |
| 67 | Environmental Chemistry | 143 | 19.8K | 53 | 25 |
| 68 | Analytical Chemistry | 503 | 19.1K | 96 | 96 |
| 69 | Public Health | 529 | 19.0K | 168 | 199 |
| 70 | Immunology | 457 | 18.7K | 117 | 180 |
| 71 | Photonics | 370 | 18.6K | 38 | 43 |
| 72 | fuel cells | 208 | 18.6K | 17 | 19 |
| 73 | Plant cells | 127 | 18.2K | 79 | 67 |
| 74 | Psychiatry | 415 | 18.2K | 169 | 199 |
| 75 | Clinical Biochemistry | 411 | 17.5K | 2 | 1 |
| 76 | Nanostructures | 121 | 16.5K | 51 | 34 |
| 77 | Water | 217 | 16.5K | 84 | 67 |
| 78 | plant molecular biology | 186 | 16.3K | 50 | 56 |
| 79 | Optics | 901 | 16.0K | 85 | 117 |
| 80 | Metallurgy | 326 | 15.6K | 63 | 66 |
| 81 | Nutrition | 451 | 15.4K | 75 | 142 |
| 82 | Metabolism | 354 | 15.1K | 99 | 152 |
| 83 | Water pollution | 258 | 15.0K | 60 | 55 |
| 84 | Endocrinology | 271 | 14.9K | 183 | 190 |
| 85 | Organic Chemistry | 524 | 14.6K | 17 | 48 |
| 86 | Pathology | 299 | 14.2K | 60 | 70 |
| 87 | United States | 266 | 14.1K | 318 | 204 |
| 88 | Plants | 158 | 14.0K | 92 | 76 |
| 89 | nucleic acids | 240 | 13.7K | 37 | 99 |
| 90 | Automation | 285 | 13.6K | 64 | 89 |
| 91 | Liver diseases | 160 | 13.6K | 72 | 70 |
| 92 | Medical genetics | 309 | 13.6K | 114 | 182 |
| 93 | Asia | 998 | 13.3K | 1 | 7 |
| 94 | Physiology | 423 | 13.2K | 164 | 230 |
| 95 | Pharmacognosy | 327 | 13.2K | 14 | 6 |
| 96 | gene mapping | 167 | 13.1K | 60 | 46 |
| 97 | Carbon | 179 | 13.1K | 19 | 16 |
| 98 | Brain | 375 | 12.9K | 85 | 148 |
| 99 | Renewable Energy Sources | 145 | 12.5K | 94 | 104 |
| 100 | Genomics | 443 | 12.5K | 31 | 76 |
| 101 | Diabetes | 233 | 12.4K | 77 | 104 |
| 102 | Nanoparticles | 292 | 12.4K | 21 | 34 |
| 103 | sanitation | 117 | 12.4K | 109 | 97 |
| 104 | Epidemiology | 388 | 12.4K | 96 | 150 |
| 105 | management | 200 | 12.1K | 192 | 222 |
| 106 | Neurophysiology | 257 | 11.9K | 184 | 223 |
| 107 | Agricultural Chemistry | 276 | 11.8K | 47 | 37 |
| 108 | Bioorganic chemistry | 456 | 11.8K | 13 | 46 |
| 109 | biological factors | 262 | 11.8K | 3 | 2 |
| 110 | Obstetrics | 185 | 11.6K | 143 | 67 |
| 111 | Plastics | 285 | 11.6K | 8 | 1 |
| 112 | Ceramics | 305 | 11.6K | 16 | 17 |
| 113 | Metals | 384 | 11.6K | 36 | 80 |
| 114 | Computer Graphics | 295 | 11.6K | 33 | 38 |
| 115 | Wireless Communication Systems | 308 | 11.5K | 60 | 72 |
| 116 | Statistical physics | 502 | 11.4K | 123 | 204 |
| 117 | environmental protection | 252 | 11.4K | 49 | 67 |
| 118 | Cell differentiation | 180 | 11.2K | 71 | 113 |
| 119 | Bacteriology | 148 | 11.2K | 118 | 98 |
| 120 | Glass | 276 | 11.1K | 13 | 19 |
| 120 | pottery | 276 | 11.1K | 12 | 18 |
| 122 | Robotics | 278 | 11.1K | 16 | 19 |
| 123 | Power Electronics | 172 | 11.0K | 42 | 35 |
| 124 | Ocean Engineering | 420 | 10.8K | 25 | 29 |
| 125 | Surgery | 158 | 10.8K | 98 | 143 |
| 126 | Stem cells | 243 | 10.6K | 12 | 20 |
| 127 | Pharmacy | 291 | 10.6K | 42 | 36 |
| 128 | Diabetes mellitus | 157 | 10.5K | 111 | 114 |
| 129 | Membranes | 135 | 10.4K | 108 | 58 |
| 130 | Environmental Policy | 204 | 10.3K | 97 | 137 |
| 131 | Bioinformatics | 172 | 10.2K | 70 | 84 |
| 132 | Telecommunication | 345 | 10.2K | 70 | 134 |
| 133 | Computational Biology | 234 | 10.2K | 66 | 117 |
| 134 | Magnetic Materials | 322 | 10.0K | 11 | 14 |
| 135 | Planets | 203 | 9.9K | 116 | 114 |
| 136 | food technology | 413 | 9.9K | 20 | 52 |
| 137 | actuators | 289 | 9.8K | 25 | 38 |
| 137 | transducers | 289 | 9.8K | 25 | 38 |
| 139 | Food | 236 | 9.8K | 74 | 85 |
| 140 | Mathematics | 815 | 9.7K | 163 | 212 |
| 141 | Environmental Toxicology | 140 | 9.7K | 76 | 50 |
| 142 | Genetic regulation | 104 | 9.7K | 42 | 54 |
| 143 | Control Theory | 216 | 9.6K | 49 | 29 |
| 144 | Signal Processing | 391 | 9.5K | 66 | 157 |
| 145 | Medical Oncology | 201 | 9.5K | 78 | 75 |
| 146 | Geology | 388 | 9.4K | 122 | 219 |
| 147 | genome | 108 | 9.4K | 78 | 102 |
| 148 | Mechanical Engineering | 459 | 9.4K | 21 | 23 |
| 149 | Metabolic diseases | 142 | 9.4K | 189 | 193 |
| 150 | Earth Sciences | 354 | 9.2K | 50 | 162 |
| 151 | Artificial Intelligence | 206 | 9.2K | 171 | 167 |
| 152 | Genetic engineering | 176 | 9.0K | 39 | 43 |
| 153 | Medical innovations | 58 | 9.0K | 54 | 38 |
| 154 | Image Processing | 331 | 9.0K | 44 | 106 |
| 155 | Atmospheric Physics | 207 | 8.8K | 93 | 115 |
| 156 | Clinical Chemistry | 304 | 8.6K | 58 | 116 |
| 157 | natural products | 229 | 8.5K | 14 | 15 |
| 158 | Cell death | 151 | 8.4K | 33 | 100 |
| 159 | Neurochemistry | 254 | 8.4K | 86 | 146 |
| 160 | Combinatorial chemistry | 138 | 8.4K | 11 | 17 |
| 161 | Immunity | 114 | 8.3K | 166 | 220 |
| 162 | Ophthalmology | 284 | 8.3K | 62 | 85 |
| 163 | Biomass Energy | 126 | 8.2K | 120 | 114 |
| 164 | Energy Policy | 239 | 8.2K | 51 | 105 |
| 165 | Light | 50 | 8.1K | 89 | 45 |
| 166 | Neurobiology | 164 | 8.0K | 100 | 142 |
| 167 | Behavior | 140 | 7.8K | 305 | 289 |
| 168 | Environmental Law | 118 | 7.7K | 24 | 30 |
| 169 | Hematology | 409 | 7.7K | 114 | 246 |
| 170 | Medical Technology | 131 | 7.7K | 17 | 6 |
| 171 | Oncogenes | 120 | 7.5K | 46 | 79 |
| 172 | Urology | 263 | 7.5K | 64 | 82 |
| 173 | Entomology | 451 | 7.5K | 35 | 48 |
| 174 | Biosensors | 145 | 7.5K | 19 | 24 |
| 175 | Psychology | 233 | 7.5K | 396 | 400 |
| 176 | Cardiovascular system | 93 | 7.4K | 178 | 188 |
| 177 | Nervous system | 207 | 7.3K | 109 | 190 |
| 178 | Orthopedics | 249 | 7.3K | 24 | 42 |
| 179 | Industrial Microbiology | 195 | 7.3K | 18 | 41 |
| 180 | Diagnostic Imaging | 337 | 7.2K | 11 | 65 |
| 181 | plasticity | 74 | 7.1K | 5 | 5 |
| 182 | Reproduction | 283 | 7.1K | 58 | 107 |
| 183 | Medical Laboratory Science | 182 | 7.0K | 49 | 101 |
| 184 | proteins | 220 | 6.9K | 42 | 80 |
| 185 | Cytogenetics | 67 | 6.9K | 148 | 115 |
| 186 | Long-Term Care | 21 | 6.9K | 108 | 13 |
| 186 | Long-term care facilities | 21 | 6.9K | 107 | 13 |
| 188 | Statistics | 417 | 6.9K | 55 | 146 |
| 189 | Economics | 332 | 6.8K | 217 | 303 |
| 190 | Hypertension | 104 | 6.8K | 157 | 173 |
| 191 | energy conservation | 113 | 6.8K | 105 | 124 |
| 192 | DNA polymerases | 25 | 6.7K | 61 | 34 |
| 193 | Bioelectronics | 117 | 6.7K | 21 | 21 |
| 194 | Structural Engineering | 281 | 6.7K | 32 | 72 |
| 195 | carcinogens | 130 | 6.6K | 15 | 16 |
| 196 | Manufacturing Processes | 198 | 6.6K | 91 | 77 |
| 197 | free radicals | 141 | 6.6K | 27 | 55 |
| 198 | Food Microbiology | 135 | 6.6K | 27 | 35 |
| 199 | Mental Disorders | 154 | 6.5K | 205 | 262 |
| 200 | drug therapy | 295 | 6.5K | 54 | 115 |
| 201 | Radiobiology | 169 | 6.5K | 70 | 73 |
| 202 | Business | 73 | 6.5K | 236 | 175 |
| 203 | Nuclear Medicine | 264 | 6.3K | 5 | 30 |
| 204 | Medical Microbiology | 161 | 6.3K | 120 | 197 |
| 205 | Chromosome mapping | 139 | 6.3K | 59 | 70 |
| 206 | Green Chemistry | 123 | 6.0K | 80 | 107 |
| 207 | Mathematical Physics | 322 | 6.0K | 99 | 210 |
| 208 | Geriatrics | 330 | 6.0K | 94 | 192 |
| 209 | Plant physiology | 127 | 5.9K | 164 | 193 |
| 210 | Combustion | 149 | 5.9K | 68 | 62 |
| 211 | Obesity | 152 | 5.9K | 107 | 146 |
| 212 | Pancreatic diseases | 32 | 5.8K | 27 | 5 |
| 213 | Oceanography | 190 | 5.8K | 107 | 154 |
| 214 | Medicinal plants | 133 | 5.8K | 29 | 22 |
| 215 | Immunotherapy | 136 | 5.8K | 75 | 144 |
| 216 | Aging | 263 | 5.8K | 123 | 193 |
| 217 | cloning | 68 | 5.7K | 14 | 11 |
| 218 | Atmospheric Chemistry | 90 | 5.6K | 113 | 128 |
| 219 | Nonlinear Dynamics | 192 | 5.6K | 128 | 140 |
| 220 | Energy Storage | 140 | 5.6K | 18 | 42 |
| 221 | computer networks | 274 | 5.6K | 38 | 109 |
| 222 | Rock Mechanics | 93 | 5.5K | 64 | 45 |
| 223 | Signal Transduction | 123 | 5.5K | 39 | 70 |
| 224 | Plant Biotechnology | 199 | 5.5K | 3 | 8 |
| 225 | Engineering | 205 | 5.3K | 212 | 182 |
| 226 | Medical Physics | 256 | 5.3K | 57 | 116 |
| 226 | Technological Innovations | 133 | 5.3K | 2 | 2 |
| 228 | Environmental pollutants | 120 | 5.3K | 77 | 61 |
| 229 | Diet | 94 | 5.3K | 202 | 207 |
| 230 | Plant genetic engineering | 95 | 5.2K | 30 | 29 |
| 230 | Mycology | 150 | 5.2K | 58 | 69 |
| 232 | Drug delivery systems | 86 | 5.2K | 62 | 70 |
| 233 | Econometrics | 115 | 5.2K | 67 | 95 |
| 234 | Chromosomes | 51 | 5.2K | 75 | 15 |
| 235 | Molecular Imaging | 220 | 5.1K | 2 | 29 |
| 236 | Geochemistry | 130 | 5.1K | 222 | 245 |
| 237 | Systems Biology | 179 | 5.1K | 9 | 24 |
| 238 | mutation | 37 | 5.1K | 51 | 6 |
| 239 | Nuclear Engineering | 440 | 5.0K | 31 | 46 |
| 240 | Physical Chemistry | 104 | 5.0K | 221 | 194 |
| 241 | Carcinogenesis | 88 | 4.9K | 26 | 20 |
| 242 | human behavior | 77 | 4.9K | 326 | 316 |
| 243 | Psychophysiology | 83 | 4.9K | 475 | 377 |
| 244 | Insects | 365 | 4.8K | 3 | 34 |
| 245 | energy development | 51 | 4.8K | 25 | 54 |
| 246 | enzymes | 194 | 4.8K | 14 | 41 |
| 247 | Education | 251 | 4.7K | 202 | 260 |
| 248 | Developmental Biology | 91 | 4.7K | 236 | 271 |
| 249 | drugs | 156 | 4.7K | 72 | 89 |
| 250 | mass transfer | 162 | 4.6K | 62 | 104 |
| 251 | Dermatology | 180 | 4.6K | 92 | 118 |
| 252 | Marine Biology | 152 | 4.6K | 187 | 233 |
| 253 | Electrical Engineering | 532 | 4.6K | 48 | 133 |
| 254 | Environmental Management | 110 | 4.6K | 177 | 239 |
| 255 | Critical Care Medicine | 68 | 4.6K | 192 | 205 |
| 256 | Therapeutics | 153 | 4.6K | 84 | 128 |
| 257 | mutagens | 76 | 4.6K | 28 | 22 |
| 258 | Molecular structure | 92 | 4.6K | 172 | 156 |
| 259 | Critical Care | 68 | 4.6K | 191 | 209 |
| 260 | Molecular Microbiology | 65 | 4.5K | 77 | 102 |
| 261 | Gene expression regulation | 50 | 4.5K | 81 | 80 |
| 262 | Electromagnetism | 163 | 4.5K | 16 | 14 |
| 263 | Pediatrics | 124 | 4.5K | 212 | 249 |
| 264 | Civil Engineering | 263 | 4.5K | 17 | 24 |
| 265 | Pediatric Neurology | 83 | 4.5K | 78 | 124 |
| 266 | marketing | 93 | 4.5K | 148 | 213 |
| 267 | Europe | 182 | 4.4K | 178 | 183 |
| 268 | Genetic therapy | 124 | 4.4K | 33 | 55 |
| 269 | Information Science | 135 | 4.4K | 107 | 145 |
| 270 | Diagnostic microbiology | 67 | 4.4K | 101 | 141 |
| 271 | Engineering Geology | 104 | 4.4K | 82 | 76 |
| 272 | Fungi | 115 | 4.4K | 28 | 56 |
| 273 | Sleep Disorders | 206 | 4.3K | 38 | 91 |
| 274 | Serology | 23 | 4.3K | 44 | 3 |
| 275 | micromechanics | 140 | 4.2K | 6 | 10 |
| 276 | Public Administration | 139 | 4.2K | 50 | 62 |
| 277 | Sustainable Engineering | 97 | 4.2K | 64 | 89 |
| 278 | Sleep | 206 | 4.2K | 39 | 105 |
| 279 | Pharmaceutical Technology | 146 | 4.2K | 15 | 39 |
| 280 | Allergy | 104 | 4.2K | 73 | 182 |
| 281 | Memory | 141 | 4.2K | 134 | 177 |
| 282 | Fluid Mechanics | 124 | 4.2K | 71 | 81 |
| 283 | arthritis | 72 | 4.2K | 141 | 139 |
| 284 | Soil Mechanics | 82 | 4.2K | 99 | 80 |
| 285 | concrete | 54 | 4.1K | 104 | 97 |
| 286 | Computer-Aided Design | 167 | 4.1K | 7 | 32 |
| 287 | Semiconductors | 277 | 4.0K | 20 | 46 |
| 288 | Energy Harvesting | 70 | 4.0K | 9 | 39 |
| 289 | Thrombosis | 81 | 4.0K | 88 | 76 |
| 290 | Developmental Genetics | 22 | 4.0K | 119 | 84 |
| 291 | Earthquake Engineering | 151 | 4.0K | 78 | 124 |
| 292 | protein | 124 | 4.0K | 37 | 83 |
| 293 | Breeding | 104 | 4.0K | 66 | 63 |
| 294 | Korea | 317 | 3.9K | 1 | 1 |
| 295 | Nuclear Fusion | 228 | 3.9K | 29 | 38 |
| 296 | Neurons | 33 | 3.9K | 121 | 185 |
| 297 | pollutants | 90 | 3.9K | 92 | 88 |
| 298 | Radiation | 104 | 3.9K | 115 | 67 |
| 299 | Mental illness | 108 | 3.8K | 152 | 251 |
| 300 | viral genetics | 16 | 3.8K | 86 | 72 |
| 301 | Parasitology | 127 | 3.8K | 113 | 119 |
| 302 | Transplantation | 173 | 3.8K | 55 | 122 |
| 303 | Host-parasite interactions | 41 | 3.8K | 196 | 183 |
| 304 | Ceramic materials | 99 | 3.7K | 59 | 44 |
| 305 | Psychopharmacology | 115 | 3.7K | 104 | 195 |
| 306 | Immunopharmacology | 80 | 3.7K | 58 | 31 |
| 307 | Economic History | 261 | 3.7K | 82 | 205 |
| 308 | cell physiology | 114 | 3.7K | 91 | 183 |
| 309 | cytokines | 72 | 3.6K | 59 | 44 |
| 310 | commerce | 54 | 3.6K | 111 | 126 |
| 311 | Plant Ecology | 152 | 3.6K | 69 | 214 |
| 312 | Cardiovascular diseases | 167 | 3.6K | 47 | 99 |
| 313 | Parasitic Diseases | 97 | 3.6K | 108 | 125 |
| 314 | Health Policy | 87 | 3.6K | 238 | 167 |
| 315 | Solid State Chemistry | 169 | 3.6K | 126 | 146 |
| 316 | Attention | 128 | 3.6K | 130 | 151 |
| 317 | Mechatronics | 79 | 3.6K | 32 | 24 |
| 318 | Neuropsychology | 80 | 3.6K | 305 | 259 |
| 319 | Industrial Engineering | 138 | 3.5K | 67 | 108 |
| 319 | Perception | 125 | 3.5K | 171 | 189 |
| 321 | Japan | 222 | 3.5K | 60 | 54 |
| 322 | Mobile Computing | 76 | 3.5K | 63 | 45 |
| 323 | Visual Perception | 123 | 3.5K | 128 | 139 |
| 324 | Hydrology | 123 | 3.5K | 181 | 265 |
| 325 | tomography | 101 | 3.5K | 6 | 3 |
| 326 | Mining Engineering | 47 | 3.5K | 42 | 23 |
| 326 | Superconductors | 276 | 3.5K | 18 | 25 |
| 328 | Computer Vision | 78 | 3.5K | 72 | 134 |
| 329 | biopolymers | 95 | 3.4K | 66 | 77 |
| 330 | Embryology | 101 | 3.4K | 153 | 240 |
| 331 | Systems Engineering | 124 | 3.3K | 89 | 120 |
| 332 | lasers | 141 | 3.3K | 138 | 128 |
| 333 | Nuclear Energy | 282 | 3.3K | 20 | 29 |
| 334 | Sociology | 120 | 3.3K | 289 | 327 |
| 335 | Quantum electronics | 132 | 3.2K | 93 | 90 |
| 335 | Alzheimer's disease | 354 | 3.2K | 42 | 113 |
| 337 | Antioxidants | 73 | 3.2K | 7 | 48 |
| 338 | Communication | 110 | 3.2K | 159 | 220 |
| 339 | Proteome | 99 | 3.2K | 39 | 91 |
| 340 | Social Change | 52 | 3.2K | 24 | 35 |
| 341 | Emergency Medicine | 177 | 3.2K | 54 | 72 |
| 342 | rehabilitation | 130 | 3.2K | 138 | 206 |
| 343 | Public Policy | 95 | 3.2K | 114 | 118 |
| 344 | Cell metabolism | 20 | 3.2K | 127 | 132 |
| 345 | Fiber Optics | 40 | 3.2K | 171 | 59 |
| 346 | Plant diseases | 121 | 3.2K | 149 | 160 |
| 347 | Telecommunication Systems | 193 | 3.1K | 14 | 25 |
| 348 | mathematical analysis | 239 | 3.1K | 51 | 102 |
| 349 | Spine | 61 | 3.1K | 66 | 71 |
| 350 | Homeostasis | 15 | 3.1K | 113 | 129 |
| 351 | Neurosurgery | 84 | 3.1K | 32 | 55 |
| 352 | Biodiversity conservation | 28 | 3.1K | 432 | 376 |
| 353 | Vaccines | 131 | 3.0K | 77 | 135 |
| 354 | Molecular Genetics | 100 | 3.0K | 142 | 281 |
| 355 | Orthopedic Surgery | 93 | 3.0K | 20 | 18 |
| 356 | Oxidation-reduction | 60 | 3.0K | 29 | 82 |
| 357 | Textile industry | 157 | 3.0K | 7 | 5 |
| 358 | gene therapy | 90 | 3.0K | 46 | 102 |
| 359 | Smart Materials | 94 | 3.0K | 30 | 33 |
| 360 | System analysis | 104 | 3.0K | 158 | 160 |
| 361 | Cement | 26 | 3.0K | 113 | 77 |
| 362 | energy resources | 70 | 3.0K | 74 | 187 |
| 363 | Schizophrenia | 89 | 3.0K | 93 | 124 |
| 364 | textile fibers | 146 | 2.9K | 6 | 4 |
| 365 | Developing countries | 84 | 2.9K | 189 | 200 |
| 366 | environmental exposure | 112 | 2.9K | 53 | 110 |
| 367 | Climate change | 19 | 2.9K | 336 | 337 |
| 368 | Eutrophication | 18 | 2.9K | 339 | 337 |
| 369 | histological techniques | 41 | 2.9K | 50 | 34 |
| 370 | Social Psychology | 73 | 2.8K | 346 | 391 |
| 371 | pigments | 93 | 2.8K | 18 | 9 |
| 372 | Information Technology | 102 | 2.8K | 100 | 215 |
| 373 | vascular diseases | 30 | 2.8K | 133 | 84 |
| 374 | Water quality management | 127 | 2.8K | 48 | 78 |
| 375 | Child | 130 | 2.8K | 168 | 225 |
| 376 | Electrophoresis | 122 | 2.8K | 39 | 82 |
| 377 | Structural design | 90 | 2.7K | 24 | 30 |
| 378 | Virulence | 36 | 2.7K | 227 | 211 |
| 379 | Radio | 96 | 2.7K | 146 | 231 |
| 380 | Plant Genetics | 48 | 2.7K | 51 | 68 |
| 381 | United Kingdom | 62 | 2.6K | 208 | 220 |
| 382 | Adaptive control systems | 90 | 2.6K | 6 | 4 |
| 383 | coal | 78 | 2.6K | 129 | 188 |
| 384 | Histology | 78 | 2.6K | 196 | 239 |
| 385 | Molecular cloning | 77 | 2.6K | 53 | 83 |
| 386 | Digestive system diseases | 95 | 2.6K | 40 | 39 |
| 387 | Operations Research | 82 | 2.6K | 265 | 278 |
| 388 | China | 155 | 2.5K | 157 | 207 |
| 389 | Engineering Mathematics | 101 | 2.5K | 107 | 106 |
| 390 | Enzyme | 89 | 2.5K | 4 | 9 |
| 391 | finance | 132 | 2.5K | 115 | 251 |
| 392 | cell interaction | 60 | 2.5K | 39 | 42 |
| 393 | Recombinant DNA | 75 | 2.5K | 74 | 102 |
| 394 | Meteorites | 42 | 2.5K | 215 | 226 |
| 395 | Kidney diseases | 86 | 2.5K | 51 | 72 |
| 396 | Optoelectronics | 14 | 2.5K | 142 | 1 |
| 397 | Bones | 48 | 2.5K | 73 | 92 |
| 398 | complementary therapies | 66 | 2.5K | 94 | 62 |
| 399 | Molecular Pharmacology | 50 | 2.5K | 55 | 57 |
| 400 | Functional foods | 72 | 2.4K | 6 | 4 |
| 400 | Phytotherapy | 72 | 2.4K | 7 | 11 |
| 402 | Radiography | 34 | 2.4K | 131 | 136 |
| 403 | soil microbiology | 44 | 2.4K | 252 | 291 |
| 404 | Agricultural Engineering | 69 | 2.4K | 15 | 16 |
| 405 | Building Materials | 78 | 2.4K | 200 | 303 |
| 406 | Hormones | 52 | 2.4K | 170 | 148 |
| 407 | drug development | 22 | 2.4K | 187 | 147 |
| 408 | Genetic recombination | 68 | 2.4K | 73 | 94 |
| 409 | Soft Condensed Matter | 68 | 2.4K | 119 | 120 |
| 410 | Chromatographic analysis | 138 | 2.4K | 50 | 75 |
| 410 | health planning | 70 | 2.4K | 182 | 120 |
| 412 | Fluid Dynamics | 80 | 2.3K | 89 | 95 |
| 413 | Alternative Medicine | 70 | 2.3K | 76 | 63 |
| 414 | Microwaves | 128 | 2.3K | 92 | 136 |
| 415 | Clinical Pharmacology | 108 | 2.3K | 59 | 103 |
| 416 | Production Management | 31 | 2.3K | 245 | 208 |
| 417 | Tissue Engineering | 113 | 2.3K | 1 | 9 |
| 418 | Chemotherapy | 136 | 2.3K | 35 | 123 |
| 419 | Structural optimization | 68 | 2.3K | 13 | 17 |
| 420 | biological evolution | 60 | 2.3K | 350 | 489 |
| 421 | Pharmacogenetics | 78 | 2.2K | 38 | 72 |
| 422 | Gerontology | 179 | 2.2K | 103 | 197 |
| 423 | medical education | 79 | 2.2K | 198 | 196 |
| 424 | Pesticides | 68 | 2.2K | 21 | 13 |
| 425 | Building | 59 | 2.2K | 45 | 35 |
| 426 | Horticulture | 140 | 2.2K | 9 | 16 |
| 427 | Marine Pollution | 66 | 2.2K | 61 | 111 |
| 428 | Transportation | 121 | 2.2K | 126 | 232 |
| 428 | Genes | 149 | 2.2K | 13 | 59 |
| 430 | bioclimatology | 55 | 2.2K | 23 | 22 |
| 431 | Protozoa | 36 | 2.2K | 28 | 30 |
| 432 | drug evaluation | 106 | 2.2K | 12 | 47 |
| 433 | Solar Energy | 54 | 2.2K | 150 | 161 |
| 434 | Environmental Microbiology | 52 | 2.2K | 127 | 228 |
| 435 | Quality Control | 82 | 2.1K | 63 | 98 |
| 436 | Medical Anthropology | 38 | 2.1K | 230 | 220 |
| 437 | Structural dynamics | 80 | 2.1K | 79 | 154 |
| 438 | Photochemistry | 74 | 2.1K | 80 | 133 |
| 439 | Biopharmaceutics | 39 | 2.1K | 121 | 86 |
| 440 | Health Education | 84 | 2.1K | 204 | 216 |
| 440 | fertility | 74 | 2.1K | 94 | 167 |
| 442 | Hydraulic Engineering | 95 | 2.1K | 65 | 97 |
| 443 | organization | 17 | 2.1K | 261 | 186 |
| 444 | Anatomy | 67 | 2.1K | 293 | 323 |
| 445 | Infertility | 71 | 2.1K | 87 | 152 |
| 446 | Bipolar Disorder | 13 | 2.0K | 112 | 43 |
| 447 | Production Engineering | 107 | 2.0K | 126 | 164 |
| 448 | Naval Architecture | 140 | 2.0K | 7 | 10 |
| 449 | Heat Exchangers | 76 | 2.0K | 73 | 130 |
| 450 | Muscles | 78 | 2.0K | 40 | 83 |
| 451 | Parasites | 31 | 2.0K | 321 | 129 |
| 452 | Hematopoietic stem cell transplantation | 36 | 1.9K | 11 | 8 |
| 453 | Adolescent | 78 | 1.9K | 223 | 274 |
| 454 | Sedimentary rocks | 42 | 1.9K | 21 | 24 |
| 455 | visualization | 147 | 1.9K | 53 | 85 |
| 456 | Microwave devices | 70 | 1.9K | 25 | 31 |
| 457 | Food additives | 69 | 1.9K | 58 | 145 |
| 458 | Chromatography | 100 | 1.9K | 61 | 90 |
| 459 | microwave communication systems | 65 | 1.9K | 16 | 22 |
| 460 | Functional Analysis | 127 | 1.9K | 23 | 75 |
| 461 | Rheumatology | 49 | 1.9K | 154 | 212 |
| 462 | Atmospheric Science | 102 | 1.9K | 1 | 4 |
| 463 | Respiration | 82 | 1.8K | 143 | 239 |
| 464 | Lipids | 47 | 1.8K | 157 | 195 |
| 465 | Physical Therapy | 65 | 1.8K | 129 | 182 |
| 466 | Plant tissue culture | 39 | 1.8K | 52 | 32 |
| 466 | Plant cell culture | 39 | 1.8K | 37 | 30 |
| 468 | Information Theory | 57 | 1.8K | 185 | 199 |
| 469 | Rheology | 49 | 1.8K | 56 | 51 |
| 470 | solar cells | 43 | 1.8K | 64 | 82 |
| 471 | personality | 37 | 1.8K | 363 | 380 |
| 472 | Algal blooms | 44 | 1.8K | 8 | 28 |
| 472 | Cyanobacteria | 44 | 1.8K | 8 | 28 |
| 472 | microalgae | 44 | 1.8K | 8 | 28 |
| 475 | Raman spectroscopy | 57 | 1.8K | 25 | 28 |
| 476 | Zoology | 126 | 1.8K | 196 | 343 |
| 476 | Parenteral nutrition | 33 | 1.8K | 171 | 175 |
| 478 | Numerical Analysis | 93 | 1.8K | 190 | 227 |
| 478 | Australia | 80 | 1.8K | 124 | 127 |
| 480 | Intelligent Transportation Systems | 62 | 1.8K | 91 | 154 |
| 481 | viruses | 53 | 1.8K | 248 | 340 |
| 482 | Enteral nutrition | 29 | 1.7K | 123 | 133 |
| 483 | Waste management | 75 | 1.7K | 57 | 66 |
| 484 | Educational Technology | 43 | 1.7K | 180 | 132 |
| 485 | solar power | 41 | 1.7K | 52 | 69 |
| 486 | Industrial Safety | 62 | 1.7K | 73 | 96 |
| 487 | Process Control | 32 | 1.7K | 115 | 164 |
| 488 | city planning | 116 | 1.7K | 73 | 199 |
| 489 | Adhesion | 57 | 1.7K | 12 | 12 |
| 489 | adhesives | 57 | 1.7K | 16 | 12 |
| 491 | Quality of life | 75 | 1.7K | 62 | 198 |
| 492 | Animal Behavior | 56 | 1.7K | 373 | 454 |
| 493 | behavioral medicine | 41 | 1.7K | 210 | 261 |
| 494 | Herbal medicine | 36 | 1.7K | 64 | 55 |
| 495 | Ultrasonics | 46 | 1.7K | 139 | 144 |
| 496 | Cognition | 69 | 1.7K | 282 | 382 |
| 497 | Genetic Toxicology | 19 | 1.7K | 51 | 26 |
| 498 | Radio waves | 62 | 1.6K | 122 | 169 |
| 499 | Tunneling | 23 | 1.6K | 72 | 44 |
| 499 | underground construction | 23 | 1.6K | 72 | 44 |
| 501 | Social Sciences | 119 | 1.6K | 291 | 442 |
| 502 | Electrochemical Analysis | 64 | 1.6K | 156 | 186 |
| 503 | Catalysts | 54 | 1.6K | 28 | 41 |
| 504 | Politics | 15 | 1.6K | 188 | 51 |
| 504 | government | 15 | 1.6K | 216 | 71 |
| 506 | Environmental Geology | 81 | 1.6K | 62 | 174 |
| 507 | Bacterial infections | 23 | 1.6K | 139 | 192 |
| 508 | biocatalysis | 10 | 1.6K | 43 | 85 |
| 508 | Homogeneous catalysis | 10 | 1.6K | 43 | 85 |
| 508 | Heterogeneous catalysis | 10 | 1.6K | 43 | 85 |
| 511 | Growth | 36 | 1.6K | 256 | 340 |
| 512 | Water Purification | 68 | 1.6K | 50 | 64 |
| 513 | Biodiversity | 50 | 1.6K | 345 | 438 |
| 514 | Decision making | 49 | 1.6K | 159 | 211 |
| 515 | software | 57 | 1.6K | 23 | 73 |
| 516 | mycoses | 24 | 1.6K | 136 | 185 |
| 517 | Database Management | 79 | 1.5K | 59 | 130 |
| 518 | Mass Spectrometry | 82 | 1.5K | 61 | 157 |
| 519 | Surface-Active Agents | 44 | 1.5K | 69 | 103 |
| 519 | Surface properties | 44 | 1.5K | 75 | 114 |
| 521 | economic policy | 94 | 1.5K | 179 | 255 |
| 522 | Radioisotopes | 76 | 1.5K | 51 | 39 |
| 523 | pain | 61 | 1.5K | 167 | 284 |
| 524 | Nursing | 62 | 1.5K | 210 | 162 |
| 524 | Inflammation | 33 | 1.5K | 146 | 167 |
| 526 | food handling | 53 | 1.5K | 42 | 75 |
| 527 | Regenerative Medicine | 92 | 1.5K | 1 | 1 |
| 528 | vibration | 62 | 1.5K | 96 | 162 |
| 529 | ecosystem | 30 | 1.5K | 299 | 310 |
| 530 | water supply | 28 | 1.5K | 211 | 205 |
| 531 | Zeolites | 33 | 1.5K | 122 | 104 |
| 532 | food contamination | 33 | 1.5K | 89 | 33 |
| 533 | Nanoelectronics | 105 | 1.5K | 24 | 27 |
| 534 | Sexual health | 44 | 1.5K | 81 | 74 |
| 535 | Sedimentology | 25 | 1.5K | 83 | 66 |
| 536 | preventive medicine | 30 | 1.5K | 255 | 231 |
| 537 | Astrocytes | 21 | 1.4K | 79 | 82 |
| 538 | infection | 53 | 1.4K | 224 | 333 |
| 539 | Chemical analysis | 40 | 1.4K | 93 | 84 |
| 540 | Immunochemistry | 53 | 1.4K | 51 | 78 |
| 540 | Convergence | 39 | 1.4K | 2 | 3 |
| 542 | Clinical Immunology | 53 | 1.4K | 135 | 169 |
| 543 | Child Development | 66 | 1.4K | 294 | 435 |
| 544 | Quantum theory | 64 | 1.4K | 73 | 95 |
| 545 | Neuropsychiatry | 43 | 1.4K | 87 | 109 |
| 546 | embryonic development | 51 | 1.4K | 12 | 23 |
| 547 | Hemostasis | 57 | 1.4K | 39 | 51 |
| 548 | Health | 75 | 1.4K | 222 | 361 |
| 549 | Soil biology | 21 | 1.4K | 277 | 264 |
| 550 | Child welfare | 58 | 1.3K | 106 | 123 |
| 551 | Molecular evolution | 41 | 1.3K | 237 | 366 |
| 552 | Hydrodynamics | 45 | 1.3K | 52 | 88 |
| 553 | Organometallic chemistry | 52 | 1.3K | 258 | 185 |
| 554 | Aerosols | 55 | 1.3K | 49 | 77 |
| 555 | probabilities | 95 | 1.3K | 104 | 122 |
| 556 | Photobiology | 45 | 1.3K | 96 | 115 |
| 557 | Neural circuitry | 60 | 1.3K | 189 | 385 |
| 558 | catalytic activity | 33 | 1.3K | 81 | 85 |
| 559 | supercritical fluids | 50 | 1.3K | 20 | 36 |
| 560 | Ultrasound | 35 | 1.3K | 112 | 88 |
| 561 | Radiology | 79 | 1.3K | 102 | 136 |
| 562 | epilepsy | 47 | 1.3K | 83 | 101 |
| 563 | Genetic algorithms | 21 | 1.3K | 59 | 103 |
| 564 | Analytical Biochemistry | 57 | 1.3K | 140 | 246 |
| 565 | Systems Analysis | 44 | 1.3K | 91 | 72 |
| 566 | Neurotoxicology | 26 | 1.3K | 51 | 44 |
| 567 | Differential Equations | 79 | 1.3K | 43 | 114 |
| 568 | Climate | 32 | 1.3K | 36 | 62 |
| 569 | Proteomics | 41 | 1.3K | 108 | 185 |
| 570 | Forest Ecology | 27 | 1.3K | 227 | 209 |
| 571 | gastrointestinal tract | 14 | 1.3K | 59 | 39 |
| 572 | Economic Development | 44 | 1.3K | 237 | 355 |
| 573 | Plant breeding | 45 | 1.2K | 70 | 69 |
| 574 | Semiconductor industry | 74 | 1.2K | 23 | 23 |
| 575 | Geodynamics | 48 | 1.2K | 129 | 234 |
| 576 | Nanochemistry | 57 | 1.2K | 55 | 57 |
| 577 | hygiene | 35 | 1.2K | 29 | 29 |
| 578 | Cybernetics | 50 | 1.2K | 233 | 370 |
| 579 | Food Preservation | 22 | 1.2K | 121 | 28 |
| 580 | Petroleum Engineering | 49 | 1.2K | 105 | 105 |
| 580 | Mineralogy | 56 | 1.2K | 258 | 355 |
| 582 | Pharmacokinetics | 40 | 1.2K | 61 | 106 |
| 583 | Psychosomatic Medicine | 23 | 1.2K | 177 | 160 |
| 584 | occupational diseases | 48 | 1.2K | 71 | 130 |
| 585 | Agriculture | 39 | 1.2K | 387 | 426 |
| 586 | Ergonomics | 95 | 1.2K | 71 | 128 |
| 587 | brain mapping | 35 | 1.2K | 97 | 166 |
| 588 | Chronic diseases | 5 | 1.2K | 440 | 204 |
| 589 | Minerals | 25 | 1.2K | 89 | 54 |
| 590 | Microbial Genetics | 24 | 1.2K | 44 | 52 |
| 590 | phytopathogenic bacteria | 24 | 1.2K | 35 | 50 |
| 592 | natural disasters | 45 | 1.2K | 82 | 179 |
| 593 | Biogeochemistry | 29 | 1.2K | 282 | 339 |
| 594 | Respiratory system | 38 | 1.2K | 51 | 65 |
| 595 | Infections | 33 | 1.2K | 200 | 302 |
| 596 | Lightweight concrete | 27 | 1.1K | 67 | 122 |
| 597 | Learning | 28 | 1.1K | 343 | 349 |
| 598 | Detectors | 71 | 1.1K | 98 | 192 |
| 599 | Human-Computer Interaction | 43 | 1.1K | 160 | 224 |
| 600 | Multimedia Systems | 61 | 1.1K | 156 | 217 |
| 601 | Data Mining | 89 | 1.1K | 36 | 356 |
| 602 | Tropical Medicine | 49 | 1.1K | 211 | 229 |
| 603 | Flexible electronics | 17 | 1.1K | 2 | 2 |
| 604 | Boundary Value Problems | 37 | 1.1K | 96 | 89 |
| 605 | Evolution | 39 | 1.1K | 427 | 587 |
| 606 | Telemedicine | 38 | 1.1K | 17 | 28 |
| 607 | Transgenic plants | 39 | 1.1K | 23 | 45 |
| 608 | Forest Management | 24 | 1.1K | 246 | 218 |
| 609 | Antenna Arrays | 35 | 1.1K | 84 | 88 |
| 610 | Oral Medicine | 82 | 1.1K | 14 | 21 |
| 610 | International Finance | 63 | 1.1K | 156 | 338 |
| 612 | drug toxicity | 19 | 1.1K | 35 | 11 |
| 613 | vitamin C | 37 | 1.1K | 7 | 25 |
| 613 | vitamin E | 37 | 1.1K | 7 | 25 |
| 615 | Terahertz Technology | 4 | 1.1K | 123 | 8 |
| 616 | Informatics | 34 | 1.1K | 70 | 116 |
| 617 | East Asia | 105 | 1.1K | 3 | 4 |
| 618 | Biomolecules | 30 | 1.1K | 24 | 81 |
| 619 | Sarcopenia | 37 | 1.1K | 5 | 54 |
| 620 | Social work | 52 | 1.1K | 237 | 211 |
| 621 | Paleontology | 51 | 1.1K | 222 | 255 |
| 621 | Leukemia | 32 | 1.1K | 222 | 309 |
| 623 | Bioinorganic chemistry | 32 | 1.1K | 349 | 272 |
| 624 | Antibacterial agents | 24 | 1.1K | 76 | 75 |
| 624 | hydrocolloids | 23 | 1.1K | 134 | 197 |
| 626 | Gastrointestinal diseases | 36 | 1.1K | 40 | 27 |
| 627 | alcoholism | 30 | 1.1K | 356 | 350 |
| 628 | Health Services Research | 53 | 1.1K | 229 | 303 |
| 628 | Mechanics | 53 | 1.1K | 129 | 166 |
| 630 | Biomechanics | 43 | 1.1K | 210 | 300 |
| 631 | Seismology | 37 | 1.0K | 71 | 83 |
| 632 | Soil ecology | 15 | 1.0K | 242 | 145 |
| 633 | Computer Science | 92 | 1.0K | 75 | 211 |
| 634 | Biomass | 16 | 1.0K | 135 | 97 |
| 635 | Marine Engineering | 98 | 1.0K | 4 | 8 |
| 635 | Dementia | 288 | 1.0K | 49 | 210 |
| 637 | nuclear power | 77 | 1.0K | 35 | 27 |
| 638 | Microbial Biotechnology | 31 | 1.0K | 78 | 88 |
| 639 | Tourism | 20 | 1.0K | 492 | 484 |
| 639 | Artificial Organs | 81 | 1.0K | 18 | 48 |
| 641 | Cellulose | 32 | 1.0K | 59 | 101 |
| 642 | Natural resources | 25 | 1.0K | 146 | 158 |
| 643 | Paleoclimatology | 48 | 1.0K | 169 | 311 |
| 644 | Oxidative stress | 27 | 1.0K | 95 | 227 |
| 644 | wind erosion | 1 | 1.0K | 216 | 8 |
| 646 | Radiation Oncology | 42 | 998 | 17 | 31 |
| 647 | Global Health | 39 | 997 | 118 | 102 |
| 648 | Dentistry | 85 | 992 | 50 | 83 |
| 649 | weather | 35 | 977 | 17 | 56 |
| 650 | Geography | 38 | 973 | 474 | 522 |
| 650 | Hazardous waste | 31 | 973 | 84 | 229 |
| 652 | Regional Planning | 72 | 971 | 144 | 344 |
| 652 | Hemodynamics | 21 | 971 | 186 | 210 |
| 654 | Immunopathology | 35 | 967 | 265 | 323 |
| 655 | Immunogenetics | 38 | 953 | 64 | 96 |
| 656 | Marine Meteorology | 46 | 950 | 56 | 99 |
| 657 | Child psychology | 24 | 947 | 442 | 493 |
| 658 | Nephrology | 19 | 941 | 134 | 131 |
| 659 | Solar System | 38 | 937 | 171 | 219 |
| 660 | air quality management | 34 | 935 | 19 | 49 |
| 660 | Neuromuscular diseases | 41 | 935 | 64 | 121 |
| 662 | Paleoecology | 45 | 934 | 162 | 286 |
| 663 | Environmental Geochemistry | 24 | 930 | 28 | 22 |
| 664 | Petrology | 29 | 928 | 308 | 365 |
| 665 | Otolaryngology | 27 | 927 | 109 | 99 |
| 666 | Soil Science | 27 | 924 | 493 | 525 |
| 667 | Fashion | 72 | 921 | 1 | 4 |
| 668 | Paleogeography | 43 | 920 | 139 | 267 |
| 669 | Immune system | 28 | 914 | 202 | 436 |
| 670 | Ecological Engineering | 19 | 913 | 82 | 77 |
| 670 | aerosol | 38 | 913 | 35 | 55 |
| 672 | Histocompatibility Testing | 41 | 910 | 26 | 41 |
| 673 | Information Systems | 42 | 909 | 135 | 224 |
| 674 | disease vectors | 33 | 907 | 126 | 157 |
| 675 | industrial waste | 27 | 898 | 87 | 235 |
| 676 | Adolescent Medicine | 6 | 897 | 313 | 211 |
| 677 | Ventilation | 32 | 894 | 53 | 68 |
| 677 | Disease | 8 | 894 | 115 | 321 |
| 679 | radioactive waste | 24 | 893 | 91 | 238 |
| 679 | Vision | 22 | 893 | 197 | 197 |
| 681 | Smoking | 25 | 891 | 189 | 189 |
| 682 | calcification | 27 | 884 | 68 | 111 |
| 683 | Randomized Controlled Trials | 84 | 882 | 59 | 107 |
| 684 | Geomagnetism | 30 | 878 | 146 | 145 |
| 685 | Development | 20 | 874 | 187 | 214 |
| 686 | Ultrasonic Imaging | 20 | 869 | 96 | 46 |
| 687 | Chemical Oceanography | 21 | 864 | 73 | 99 |
| 687 | Molecular Spectroscopy | 32 | 864 | 376 | 322 |
| 689 | industrial hygiene | 47 | 862 | 73 | 57 |
| 690 | Drug design | 27 | 861 | 278 | 338 |
| 691 | Geriatric Psychiatry | 32 | 860 | 143 | 178 |
| 691 | Leadership | 10 | 860 | 192 | 162 |
| 693 | Primary health care | 43 | 859 | 290 | 335 |
| 694 | Dynamics | 62 | 858 | 127 | 212 |
| 694 | Economic Assistance | 20 | 858 | 156 | 197 |
| 696 | Chemical Ecology | 21 | 857 | 101 | 115 |
| 697 | drug addiction | 15 | 852 | 419 | 327 |
| 698 | Superconductivity | 44 | 850 | 42 | 55 |
| 699 | Insect biochemistry | 22 | 848 | 79 | 91 |
| 700 | Mathematical Economics | 15 | 845 | 85 | 94 |
| 700 | structural stability | 20 | 845 | 58 | 66 |
| 702 | pheromones | 19 | 842 | 104 | 112 |
| 703 | animal diseases | 52 | 841 | 34 | 65 |
| 704 | educational planning | 9 | 840 | 158 | 60 |
| 705 | Crystallography | 100 | 838 | 102 | 222 |
| 706 | diseases | 4 | 837 | 234 | 330 |
| 707 | Biogeochemical cycles | 13 | 834 | 152 | 202 |
| 708 | biomimicry | 18 | 832 | 13 | 10 |
| 709 | Health Information Management | 3 | 831 | 319 | 138 |
| 709 | Crystal growth | 41 | 831 | 100 | 195 |
| 711 | Erectile dysfunction | 26 | 829 | 19 | 17 |
| 712 | Photography | 334 | 824 | 74 | 101 |
| 713 | data collection | 29 | 823 | 132 | 289 |
| 714 | Organometallic compounds | 18 | 815 | 479 | 322 |
| 715 | Phylogeny | 23 | 814 | 189 | 252 |
| 716 | Social behavior | 46 | 809 | 174 | 363 |
| 717 | Nanobiotechnology | 21 | 803 | 54 | 106 |
| 718 | Roads | 55 | 796 | 112 | 130 |
| 719 | machinery | 19 | 793 | 180 | 103 |
| 720 | Marine resources | 22 | 792 | 109 | 83 |
| 721 | Computer Architecture | 57 | 788 | 21 | 39 |
| 722 | Business Ethics | 8 | 785 | 575 | 465 |
| 723 | Sports Medicine | 79 | 781 | 335 | 705 |
| 723 | innovation | 19 | 781 | 96 | 270 |
| 723 | Microscopy | 41 | 781 | 180 | 250 |
| 726 | Strategic planning | 25 | 779 | 85 | 148 |
| 727 | X-rays | 44 | 776 | 26 | 29 |
| 728 | Molecular ecology | 14 | 775 | 449 | 453 |
| 729 | DNS | 22 | 773 | 44 | 51 |
| 730 | Urban Policy | 34 | 770 | 84 | 157 |
| 731 | cardiac catheterization | 34 | 769 | 111 | 103 |
| 732 | Fracture mechanics | 33 | 763 | 346 | 384 |
| 733 | Marine algae | 44 | 756 | 1 | 2 |
| 734 | Endocrine glands | 6 | 755 | 135 | 98 |
| 734 | Sound | 35 | 755 | 181 | 182 |
| 736 | Liquid Crystals | 149 | 752 | 22 | 76 |
| 737 | toxicity testing | 33 | 751 | 32 | 60 |
| 738 | Integrated Circuits | 89 | 748 | 11 | 24 |
| 739 | Antigens | 41 | 747 | 90 | 186 |
| 740 | Hydrogeology | 25 | 735 | 95 | 104 |
| 741 | Geometry | 72 | 730 | 101 | 117 |
| 741 | stem cell transplantation | 68 | 730 | 3 | 4 |
| 743 | Cognitive neuroscience | 22 | 728 | 313 | 414 |
| 744 | Autoimmunity | 15 | 724 | 240 | 244 |
| 745 | indoor air pollution | 24 | 722 | 43 | 77 |
| 745 | Sick building syndrome | 24 | 722 | 43 | 77 |
| 747 | Telecommunications | 37 | 721 | 30 | 54 |
| 747 | internet | 33 | 721 | 291 | 464 |
| 749 | Substance Abuse | 16 | 718 | 522 | 385 |
| 750 | Databases | 30 | 717 | 72 | 103 |
| 751 | anesthesia | 58 | 715 | 17 | 15 |
| 752 | Coastal zone management | 17 | 710 | 149 | 99 |
| 753 | health services accessibility | 21 | 707 | 234 | 188 |
| 753 | Cosmochemistry | 17 | 707 | 281 | 271 |
| 755 | Histochemistry | 31 | 705 | 171 | 233 |
| 755 | clay | 16 | 705 | 199 | 198 |
| 757 | Calorimetry | 14 | 704 | 419 | 148 |
| 757 | Thermal analysis | 14 | 704 | 419 | 148 |
| 759 | gene transfer | 23 | 703 | 11 | 24 |
| 759 | genetic transformation | 23 | 703 | 11 | 24 |
| 761 | nuclear magnetic resonance | 53 | 702 | 168 | 262 |
| 762 | atmosphere | 41 | 700 | 72 | 167 |
| 763 | Magnetic Resonance Spectroscopy | 46 | 696 | 205 | 280 |
| 763 | eye | 9 | 696 | 62 | 131 |
| 763 | Cerebral cortex | 13 | 696 | 395 | 355 |
| 766 | Health Services Administration | 23 | 691 | 201 | 200 |
| 767 | Algae | 32 | 690 | 137 | 226 |
| 768 | Capital market | 27 | 688 | 43 | 66 |
| 769 | atmospheric models | 25 | 687 | 169 | 257 |
| 769 | biomedicine | 21 | 687 | 56 | 74 |
| 771 | Metallography | 32 | 685 | 119 | 159 |
| 772 | Computational Fluid Dynamics | 29 | 684 | 89 | 119 |
| 773 | Drug targeting | 21 | 682 | 22 | 49 |
| 774 | Nonlinear functional analysis | 55 | 679 | 69 | 184 |
| 774 | Socioeconomic Factors | 28 | 679 | 107 | 157 |
| 776 | Autism | 16 | 678 | 208 | 217 |
| 777 | Sun | 30 | 676 | 77 | 112 |
| 778 | Physical fitness | 19 | 674 | 294 | 299 |
| 779 | Evolutionary Computation | 18 | 671 | 89 | 189 |
| 780 | Computational Chemistry | 13 | 670 | 229 | 196 |
| 780 | X-ray crystallography | 89 | 670 | 11 | 73 |
| 782 | Agricultural Ecology | 12 | 669 | 416 | 402 |
| 782 | Groundwater | 22 | 669 | 110 | 113 |
| 784 | Ferroelectricity | 70 | 663 | 83 | 158 |
| 785 | fusion reactors | 97 | 661 | 33 | 57 |
| 786 | analysis | 23 | 658 | 69 | 109 |
| 786 | Continental shelf | 16 | 658 | 107 | 103 |
| 788 | Embedded Systems | 33 | 657 | 4 | 19 |
| 789 | Linguistics | 23 | 654 | 419 | 327 |
| 790 | Lipid metabolism | 12 | 652 | 108 | 98 |
| 790 | Lipid | 12 | 652 | 110 | 99 |
| 792 | Multivariate Analysis | 36 | 651 | 42 | 110 |
| 793 | Women's health | 41 | 650 | 159 | 241 |
| 794 | Forensic Genetics | 22 | 641 | 41 | 57 |
| 795 | Mental Health | 37 | 640 | 294 | 405 |
| 795 | Electrophysiology | 32 | 640 | 181 | 210 |
| 797 | Retina | 6 | 639 | 81 | 137 |
| 798 | Sustainable Development | 25 | 635 | 415 | 707 |
| 798 | Communication in medicine | 28 | 635 | 91 | 122 |
| 800 | Ethology | 28 | 634 | 445 | 674 |
| 801 | Anxiety Disorders | 17 | 626 | 144 | 239 |
| 801 | Anxiety | 17 | 626 | 145 | 239 |
| 803 | Archaeology | 41 | 625 | 283 | 337 |
| 804 | Consumer education | 12 | 623 | 61 | 70 |
| 805 | Asthma | 37 | 622 | 47 | 97 |
| 805 | Advertising | 17 | 622 | 54 | 82 |
| 807 | consumer behavior | 10 | 617 | 204 | 175 |
| 807 | Multiphase Flow | 16 | 617 | 103 | 99 |
| 809 | Family | 32 | 616 | 199 | 260 |
| 810 | Community Psychiatry | 23 | 615 | 231 | 296 |
| 811 | Geriatric Nursing | 28 | 613 | 47 | 21 |
| 811 | Population Genetics | 16 | 613 | 461 | 493 |
| 813 | Algebra | 69 | 611 | 174 | 210 |
| 813 | Investment analysis | 29 | 611 | 83 | 156 |
| 815 | world | 12 | 608 | 271 | 298 |
| 816 | Audiology | 29 | 603 | 169 | 210 |
| 817 | Animal ecology | 23 | 602 | 358 | 407 |
| 817 | livestock | 26 | 602 | 88 | 81 |
| 819 | Plate Tectonics | 27 | 601 | 25 | 37 |
| 819 | Interactive multimedia | 22 | 601 | 120 | 157 |
| 821 | Animal husbandry | 25 | 596 | 27 | 42 |
| 822 | Physical organic chemistry | 33 | 595 | 259 | 402 |
| 822 | pharmaceutical industry | 32 | 595 | 35 | 61 |
| 824 | Architectural Design | 53 | 594 | 11 | 50 |
| 824 | Microfabrication | 17 | 594 | 60 | 47 |
| 826 | Nitric oxide | 12 | 593 | 31 | 23 |
| 827 | Nutrigenomics | 10 | 587 | 20 | 17 |
| 828 | Organizational Behavior | 10 | 586 | 273 | 276 |
| 828 | Animal breeding | 32 | 586 | 169 | 208 |
| 830 | risk factors | 34 | 585 | 90 | 207 |
| 831 | Sports | 62 | 583 | 348 | 672 |
| 832 | Landscape Architecture | 34 | 582 | 5 | 4 |
| 833 | multimedia | 21 | 580 | 120 | 159 |
| 834 | Measurement | 32 | 579 | 233 | 315 |
| 834 | Teaching | 38 | 579 | 334 | 479 |
| 836 | older people | 140 | 578 | 108 | 339 |
| 837 | Occupational Health | 37 | 576 | 137 | 232 |
| 838 | Political Science | 54 | 575 | 320 | 466 |
| 839 | biofuels | 11 | 571 | 74 | 115 |
| 840 | Pregnancy | 21 | 569 | 169 | 184 |
| 841 | families | 28 | 555 | 179 | 203 |
| 841 | Psychiatric Epidemiology | 20 | 555 | 98 | 157 |
| 843 | Neuropharmacology | 64 | 552 | 7 | 156 |
| 844 | Recycling | 13 | 547 | 174 | 310 |
| 845 | environmental indicators | 17 | 544 | 320 | 451 |
| 845 | Cognitive Science | 17 | 544 | 526 | 605 |
| 845 | Soil dynamics | 20 | 544 | 118 | 141 |
| 848 | Demography | 19 | 542 | 160 | 200 |
| 849 | Depression | 15 | 539 | 79 | 168 |
| 850 | Veterinary Immunology | 26 | 534 | 64 | 81 |
| 851 | Health promotion | 26 | 532 | 263 | 323 |
| 852 | Internet of Things | 28 | 530 | 243 | 443 |
| 852 | locomotion | 21 | 530 | 118 | 180 |
| 852 | Mental Health Services | 23 | 530 | 314 | 343 |
| 852 | posture | 21 | 530 | 118 | 180 |
| 852 | gait | 21 | 530 | 118 | 180 |
| 852 | walking | 21 | 530 | 118 | 180 |
| 858 | Aquaculture | 21 | 529 | 462 | 496 |
| 859 | Geomorphology | 15 | 525 | 588 | 637 |
| 859 | Human Geography | 27 | 525 | 280 | 334 |
| 861 | Research Design | 15 | 523 | 404 | 416 |
| 862 | Intelligent Control Systems | 24 | 522 | 183 | 127 |
| 862 | Cell cycle | 14 | 522 | 62 | 58 |
| 862 | cell proliferation | 14 | 522 | 69 | 60 |
| 865 | Forensic Toxicology | 41 | 519 | 2 | 7 |
| 865 | Biometrics | 52 | 519 | 152 | 335 |
| 867 | wood | 44 | 518 | 52 | 102 |
| 868 | Tribology | 27 | 514 | 256 | 354 |
| 869 | dietary supplements | 37 | 508 | 45 | 219 |
| 869 | Relationships | 3 | 508 | 160 | 46 |
| 871 | Finite Element Method | 20 | 507 | 36 | 37 |
| 872 | Computer Engineering | 23 | 505 | 125 | 137 |
| 873 | preimplantation genetic diagnosis | 14 | 502 | 105 | 76 |
| 873 | embryo transfer | 14 | 502 | 113 | 79 |
| 875 | Land use | 23 | 501 | 223 | 394 |
| 876 | Steroids | 17 | 492 | 304 | 307 |
| 877 | plant communities | 17 | 491 | 394 | 571 |
| 878 | Yeast | 8 | 490 | 192 | 141 |
| 878 | Zoonoses | 19 | 490 | 21 | 47 |
| 880 | libraries | 7 | 486 | 299 | 90 |
| 880 | Cerebellum | 34 | 486 | 13 | 94 |
| 880 | impact | 11 | 486 | 116 | 119 |
| 880 | Cerebellar ataxia | 34 | 486 | 13 | 94 |
| 884 | Chemical industry | 50 | 485 | 149 | 280 |
| 885 | Pacific Islands | 51 | 484 | 9 | 23 |
| 886 | Simulation Methods | 18 | 481 | 209 | 150 |
| 886 | Atomic spectroscopy | 40 | 481 | 168 | 352 |
| 888 | research and development | 8 | 480 | 112 | 100 |
| 889 | Remote Sensing | 41 | 475 | 190 | 341 |
| 890 | drug resistance | 32 | 471 | 47 | 195 |
| 890 | extraterrestrial environment | 26 | 471 | 88 | 101 |
| 890 | astronomical phenomena | 26 | 471 | 78 | 94 |
| 893 | air quality | 19 | 470 | 5 | 14 |
| 894 | Software Engineering | 25 | 465 | 243 | 359 |
| 894 | Andrology | 30 | 465 | 68 | 155 |
| 896 | Flexible manufacturing systems | 21 | 463 | 31 | 76 |
| 897 | Palliative Care | 26 | 458 | 163 | 214 |
| 898 | Adolescent Psychology | 16 | 456 | 277 | 358 |
| 899 | Medical Ethics | 18 | 453 | 371 | 252 |
| 899 | adolescence | 15 | 453 | 344 | 396 |
| 901 | Radio frequency | 15 | 449 | 148 | 144 |
| 902 | Solitons | 35 | 448 | 133 | 345 |
| 902 | Fractals | 35 | 448 | 133 | 345 |
| 902 | Chaos | 35 | 448 | 133 | 345 |
| 902 | particles | 28 | 448 | 137 | 228 |
| 902 | baking | 11 | 448 | 54 | 50 |
| 907 | Mutagenesis | 19 | 447 | 45 | 56 |
| 908 | Reproductive toxicology | 12 | 446 | 106 | 124 |
| 909 | Industrial Policy | 15 | 445 | 124 | 163 |
| 910 | Cosmology | 18 | 440 | 180 | 240 |
| 911 | sleep-wake cycle | 8 | 438 | 30 | 6 |
| 911 | Population | 26 | 438 | 156 | 325 |
| 913 | Housing | 21 | 434 | 79 | 151 |
| 914 | Thorax | 15 | 433 | 129 | 167 |
| 915 | Luminescence | 21 | 429 | 354 | 332 |
| 916 | Aerospace Engineering | 67 | 428 | 8 | 27 |
| 916 | Bacteria | 12 | 428 | 88 | 179 |
| 918 | Nanophotonics | 26 | 427 | 29 | 104 |
| 919 | teratogenic agents | 17 | 426 | 15 | 7 |
| 920 | Biodegradation | 11 | 425 | 215 | 229 |
| 921 | Global warming | 2 | 424 | 193 | 35 |
| 922 | Climate Change Mitigation | 1 | 423 | 93 | 34 |
| 922 | sea level | 1 | 423 | 93 | 34 |
| 924 | venom | 14 | 418 | 209 | 214 |
| 924 | Toxins | 14 | 418 | 241 | 236 |
| 926 | geological modeling | 21 | 417 | 74 | 137 |
| 927 | rare diseases | 24 | 416 | 109 | 217 |
| 927 | eugenics | 13 | 416 | 157 | 139 |
| 929 | Bibliometrics | 3 | 411 | 132 | 45 |
| 930 | Evidence-Based Medicine | 14 | 410 | 199 | 170 |
| 930 | Heart Failure | 9 | 410 | 169 | 198 |
| 932 | Logistics | 17 | 408 | 116 | 239 |
| 933 | Geochemical Modeling | 20 | 406 | 62 | 118 |
| 933 | air | 5 | 406 | 100 | 82 |
| 935 | psychotherapy | 9 | 405 | 675 | 551 |
| 936 | Clinical Trials | 18 | 404 | 119 | 128 |
| 936 | Bone diseases | 29 | 404 | 37 | 253 |
| 936 | carbon monoxide | 9 | 404 | 102 | 116 |
| 939 | Gene library | 12 | 402 | 13 | 17 |
| 939 | Cheminformatics | 15 | 402 | 30 | 164 |
| 941 | Chronobiology | 17 | 401 | 78 | 113 |
| 941 | biological clocks | 17 | 401 | 78 | 113 |
| 941 | Enzyme inhibitors | 16 | 401 | 60 | 97 |
| 941 | Calculus of Variations | 33 | 401 | 58 | 109 |
| 941 | circadian rhythm | 17 | 401 | 78 | 113 |
| 941 | biological rhythms | 17 | 401 | 72 | 111 |
| 947 | Family Therapy | 19 | 399 | 218 | 223 |
| 947 | child mental health | 19 | 399 | 108 | 133 |
| 949 | Urban Planning | 19 | 398 | 61 | 135 |
| 949 | Circadian rhythms | 16 | 398 | 53 | 103 |
| 949 | Iron | 20 | 398 | 67 | 74 |
| 952 | heredity | 30 | 396 | 78 | 180 |
| 953 | Thermodynamics | 35 | 395 | 174 | 259 |
| 954 | community development | 23 | 391 | 89 | 146 |
| 955 | soil conservation | 15 | 390 | 189 | 264 |
| 955 | civil service | 19 | 390 | 75 | 133 |
| 957 | forest policy | 18 | 388 | 83 | 98 |
| 958 | local government | 10 | 387 | 128 | 116 |
| 958 | Ore deposits | 18 | 387 | 157 | 220 |
| 960 | Materials Engineering | 26 | 385 | 71 | 98 |
| 960 | Human Resources | 14 | 385 | 107 | 211 |
| 962 | Parallel Processing | 21 | 384 | 106 | 230 |
| 963 | nuclear astrophysics | 10 | 381 | 227 | 217 |
| 963 | hazard mitigation | 19 | 381 | 168 | 324 |
| 963 | health services | 27 | 381 | 201 | 345 |
| 966 | Fermentation | 20 | 380 | 45 | 49 |
| 967 | Entropy | 22 | 379 | 196 | 221 |
| 968 | counseling | 22 | 376 | 417 | 493 |
| 968 | Menopause | 24 | 376 | 37 | 80 |
| 970 | Psychometrics | 5 | 372 | 339 | 202 |
| 971 | Osteoporosis | 27 | 368 | 17 | 82 |
| 971 | sports administration | 19 | 368 | 35 | 72 |
| 973 | Organizational change | 17 | 367 | 134 | 253 |
| 974 | Emergency Medical Services | 19 | 364 | 130 | 141 |
| 975 | Geobiology | 8 | 360 | 207 | 153 |
| 976 | Quantum Optics | 29 | 359 | 161 | 297 |
| 977 | biochemical markers | 21 | 358 | 70 | 123 |
| 978 | Psychoneuroimmunology | 9 | 357 | 283 | 366 |
| 978 | Neuroimmunology | 9 | 357 | 329 | 405 |
| 980 | Game Theory | 22 | 350 | 128 | 179 |
| 981 | transgenic organisms | 9 | 349 | 49 | 59 |
| 981 | transgenic animals | 9 | 349 | 44 | 55 |
| 983 | mammals | 26 | 348 | 208 | 362 |
| 984 | Water Microbiology | 11 | 347 | 98 | 121 |
| 985 | Metallic Glasses | 15 | 345 | 135 | 170 |
| 985 | Laser Spectroscopy | 28 | 345 | 136 | 271 |
| 987 | Biogeography | 9 | 344 | 542 | 666 |
| 988 | Higher Education | 8 | 343 | 320 | 194 |
| 988 | organizational effectiveness | 14 | 343 | 79 | 108 |
| 990 | Virtual reality | 7 | 341 | 194 | 125 |
| 990 | RNA | 11 | 341 | 208 | 292 |
| 992 | Psycholinguistics | 13 | 339 | 412 | 502 |
| 992 | Sonochemistry | 11 | 339 | 210 | 385 |
| 994 | Conservation Biology | 13 | 337 | 447 | 578 |
| 995 | Marine Geology | 14 | 336 | 198 | 237 |
| 995 | peptides | 17 | 336 | 163 | 178 |
| 995 | immigration | 2 | 336 | 269 | 82 |
| 995 | Sites | 10 | 336 | 253 | 302 |
| 995 | migration policy | 2 | 336 | 278 | 86 |
| 995 | Asylum seeker | 2 | 336 | 219 | 82 |