| 1 | Physics | 4,112 | 335.2K | 65 | 71 |
| 2 | Chemistry | 4,141 | 287.9K | 40 | 41 |
| 3 | Science | 3,342 | 261.5K | 58 | 91 |
| 4 | Biology | 2,564 | 252.2K | 94 | 90 |
| 5 | Biochemistry | 4,719 | 170.1K | 31 | 61 |
| 6 | Materials | 3,178 | 163.5K | 22 | 28 |
| 7 | Molecular Biology | 3,613 | 153.3K | 18 | 69 |
| 8 | Nanotechnology | 2,415 | 143.5K | 14 | 22 |
| 9 | Natural history | 176 | 127.3K | 272 | 86 |
| 10 | Microbiology | 1,954 | 116.8K | 29 | 47 |
| 11 | Medicine | 3,728 | 116.3K | 49 | 117 |
| 12 | Biotechnology | 2,199 | 100.7K | 7 | 19 |
| 13 | Biocompatible Materials | 1,644 | 94.8K | 11 | 12 |
| 14 | Research | 3,201 | 90.2K | 21 | 67 |
| 15 | Materials Science | 1,731 | 83.1K | 25 | 30 |
| 16 | Astrophysics | 1,277 | 82.2K | 112 | 132 |
| 17 | Spectrum analysis | 1,149 | 70.0K | 58 | 69 |
| 18 | Bioengineering | 1,466 | 67.3K | 6 | 21 |
| 19 | Neurology | 1,553 | 67.3K | 88 | 141 |
| 20 | Pharmacology | 2,181 | 64.3K | 6 | 19 |
| 21 | Biophysics | 1,912 | 58.4K | 20 | 43 |
| 22 | Polymers | 1,695 | 58.0K | 25 | 29 |
| 23 | nanoscience | 954 | 54.8K | 10 | 20 |
| 24 | Cell Biology | 640 | 53.6K | 101 | 115 |
| 25 | Cytology | 1,249 | 52.0K | 43 | 128 |
| 26 | Chemical Engineering | 1,300 | 47.0K | 29 | 49 |
| 27 | Ecology | 839 | 44.9K | 148 | 186 |
| 28 | Environment | 561 | 44.2K | 94 | 87 |
| 29 | Cancer | 785 | 43.4K | 40 | 47 |
| 30 | Nuclear Physics | 1,557 | 43.4K | 119 | 189 |
| 31 | Environmental Health | 811 | 42.4K | 46 | 64 |
| 32 | Optical materials | 610 | 40.6K | 25 | 21 |
| 33 | Biomedical Engineering | 1,186 | 40.0K | 13 | 27 |
| 34 | polymerization | 1,281 | 39.6K | 26 | 34 |
| 35 | Human genetics | 217 | 39.4K | 113 | 138 |
| 36 | Catalysis | 948 | 38.2K | 35 | 65 |
| 37 | Pollution | 704 | 37.6K | 80 | 105 |
| 38 | Toxicology | 844 | 33.8K | 25 | 23 |
| 39 | Genetics | 424 | 33.5K | 129 | 121 |
| 40 | Electrochemistry | 1,649 | 33.1K | 7 | 19 |
| 41 | Electronics | 1,257 | 33.0K | 9 | 24 |
| 42 | Biochemical Engineering | 695 | 32.8K | 31 | 61 |
| 43 | Solid State Physics | 1,116 | 32.2K | 79 | 108 |
| 44 | miniaturization | 414 | 30.6K | 16 | 30 |
| 45 | Oncology | 207 | 29.6K | 78 | 31 |
| 46 | Nanostructured Materials | 722 | 29.5K | 26 | 38 |
| 47 | Condensed Matter | 900 | 28.6K | 100 | 134 |
| 48 | Botany | 427 | 27.1K | 162 | 123 |
| 49 | Virology | 358 | 26.0K | 118 | 150 |
| 50 | Microorganisms | 89 | 25.6K | 24 | 1 |
| 51 | Technology | 1,024 | 24.8K | 16 | 27 |
| 52 | Astronomy | 454 | 24.5K | 249 | 273 |
| 53 | Microelectronics | 420 | 23.9K | 18 | 35 |
| 54 | Geophysics | 598 | 23.8K | 129 | 130 |
| 55 | Meteorology | 553 | 23.6K | 41 | 62 |
| 56 | Environmental Engineering | 420 | 23.6K | 61 | 78 |
| 57 | Quantum Gravity | 567 | 23.2K | 86 | 112 |
| 58 | Colloids | 522 | 22.2K | 73 | 68 |
| 59 | Energy Conversion | 213 | 21.9K | 19 | 27 |
| 60 | Climatology | 483 | 20.8K | 21 | 32 |
| 61 | Microbial Ecology | 215 | 20.3K | 73 | 68 |
| 62 | Composite Materials | 491 | 20.1K | 38 | 56 |
| 63 | environmental pollution | 480 | 20.1K | 65 | 85 |
| 64 | Surface Chemistry | 536 | 20.0K | 62 | 73 |
| 65 | Pharmaceutical Chemistry | 736 | 20.0K | 20 | 66 |
| 66 | Environmental monitoring | 442 | 19.9K | 20 | 29 |
| 67 | Environmental Chemistry | 143 | 19.4K | 53 | 28 |
| 68 | Analytical Chemistry | 503 | 18.8K | 99 | 100 |
| 69 | Public Health | 529 | 18.6K | 166 | 197 |
| 70 | Photonics | 370 | 18.4K | 38 | 41 |
| 71 | Immunology | 457 | 18.3K | 121 | 178 |
| 72 | fuel cells | 208 | 18.2K | 19 | 21 |
| 73 | Plant cells | 127 | 17.9K | 79 | 68 |
| 74 | Psychiatry | 415 | 17.8K | 168 | 200 |
| 75 | Clinical Biochemistry | 411 | 16.9K | 2 | 1 |
| 76 | Nanostructures | 121 | 16.3K | 53 | 34 |
| 77 | Water | 217 | 16.2K | 87 | 69 |
| 78 | plant molecular biology | 186 | 16.1K | 50 | 58 |
| 79 | Optics | 901 | 15.9K | 86 | 118 |
| 80 | Metallurgy | 326 | 15.3K | 67 | 68 |
| 81 | Nutrition | 451 | 15.1K | 77 | 143 |
| 82 | Metabolism | 354 | 14.7K | 101 | 156 |
| 83 | Water pollution | 258 | 14.7K | 61 | 55 |
| 84 | Organic Chemistry | 524 | 14.5K | 20 | 49 |
| 85 | Endocrinology | 271 | 14.4K | 186 | 193 |
| 86 | Pathology | 299 | 14.1K | 62 | 73 |
| 87 | Plants | 158 | 13.8K | 92 | 77 |
| 88 | United States | 266 | 13.6K | 316 | 204 |
| 89 | Automation | 285 | 13.4K | 65 | 89 |
| 90 | Medical genetics | 309 | 13.4K | 119 | 189 |
| 91 | Liver diseases | 160 | 13.3K | 75 | 72 |
| 92 | nucleic acids | 240 | 13.2K | 40 | 101 |
| 93 | Physiology | 423 | 13.1K | 166 | 228 |
| 94 | Pharmacognosy | 327 | 13.1K | 14 | 6 |
| 95 | Asia | 998 | 13.0K | 1 | 7 |
| 96 | gene mapping | 167 | 13.0K | 62 | 48 |
| 97 | Carbon | 179 | 12.9K | 22 | 19 |
| 98 | Brain | 375 | 12.8K | 88 | 154 |
| 99 | Genomics | 443 | 12.3K | 34 | 77 |
| 100 | Renewable Energy Sources | 145 | 12.2K | 94 | 99 |
| 101 | sanitation | 117 | 12.2K | 109 | 95 |
| 102 | Nanoparticles | 292 | 12.2K | 23 | 33 |
| 103 | Epidemiology | 388 | 12.1K | 99 | 146 |
| 104 | Diabetes | 233 | 11.9K | 81 | 110 |
| 105 | management | 200 | 11.8K | 190 | 223 |
| 106 | Neurophysiology | 257 | 11.7K | 186 | 222 |
| 107 | Bioorganic chemistry | 456 | 11.7K | 15 | 47 |
| 108 | biological factors | 262 | 11.6K | 3 | 3 |
| 109 | Agricultural Chemistry | 276 | 11.6K | 48 | 37 |
| 110 | Obstetrics | 185 | 11.5K | 144 | 71 |
| 111 | Ceramics | 305 | 11.5K | 17 | 18 |
| 112 | Plastics | 285 | 11.4K | 9 | 2 |
| 113 | Computer Graphics | 295 | 11.4K | 34 | 38 |
| 114 | Wireless Communication Systems | 308 | 11.4K | 58 | 65 |
| 115 | Metals | 384 | 11.3K | 39 | 84 |
| 116 | Statistical physics | 502 | 11.3K | 125 | 206 |
| 117 | Cell differentiation | 180 | 11.1K | 74 | 114 |
| 118 | Glass | 276 | 11.1K | 14 | 20 |
| 118 | pottery | 276 | 11.1K | 13 | 19 |
| 120 | environmental protection | 252 | 11.0K | 49 | 64 |
| 121 | Bacteriology | 148 | 10.9K | 120 | 105 |
| 122 | Power Electronics | 172 | 10.8K | 44 | 37 |
| 123 | Robotics | 278 | 10.8K | 17 | 19 |
| 124 | Ocean Engineering | 420 | 10.5K | 25 | 28 |
| 125 | Pharmacy | 291 | 10.5K | 45 | 39 |
| 126 | Stem cells | 243 | 10.5K | 13 | 21 |
| 127 | Surgery | 158 | 10.3K | 100 | 146 |
| 128 | Membranes | 135 | 10.3K | 115 | 65 |
| 129 | Telecommunication | 345 | 10.0K | 71 | 136 |
| 130 | Diabetes mellitus | 157 | 10.0K | 114 | 121 |
| 131 | Bioinformatics | 171 | 10.0K | 73 | 85 |
| 132 | Environmental Policy | 204 | 10.0K | 97 | 133 |
| 133 | Computational Biology | 233 | 10.0K | 68 | 118 |
| 134 | Planets | 203 | 9.8K | 116 | 115 |
| 135 | Magnetic Materials | 322 | 9.7K | 11 | 13 |
| 136 | actuators | 289 | 9.7K | 27 | 40 |
| 136 | transducers | 289 | 9.7K | 27 | 40 |
| 138 | Genetic regulation | 104 | 9.6K | 45 | 55 |
| 139 | food technology | 413 | 9.6K | 22 | 55 |
| 140 | Food | 236 | 9.5K | 74 | 82 |
| 141 | Control Theory | 216 | 9.5K | 49 | 29 |
| 142 | Mathematics | 815 | 9.5K | 162 | 217 |
| 143 | Environmental Toxicology | 140 | 9.5K | 75 | 44 |
| 144 | Signal Processing | 391 | 9.4K | 65 | 155 |
| 145 | Medical Oncology | 201 | 9.3K | 81 | 78 |
| 146 | Geology | 388 | 9.3K | 124 | 221 |
| 147 | Mechanical Engineering | 459 | 9.2K | 21 | 24 |
| 148 | genome | 107 | 9.2K | 83 | 105 |
| 149 | Metabolic diseases | 142 | 9.1K | 192 | 198 |
| 150 | Earth Sciences | 354 | 9.0K | 51 | 160 |
| 151 | Genetic engineering | 176 | 8.9K | 43 | 45 |
| 152 | Image Processing | 331 | 8.9K | 43 | 104 |
| 153 | Medical innovations | 58 | 8.9K | 59 | 40 |
| 154 | Artificial Intelligence | 206 | 8.8K | 171 | 176 |
| 155 | Atmospheric Physics | 207 | 8.6K | 94 | 113 |
| 156 | Clinical Chemistry | 304 | 8.5K | 62 | 121 |
| 157 | natural products | 229 | 8.4K | 14 | 16 |
| 158 | Neurochemistry | 254 | 8.4K | 91 | 150 |
| 159 | Combinatorial chemistry | 138 | 8.3K | 11 | 18 |
| 160 | Cell death | 151 | 8.2K | 36 | 99 |
| 161 | Immunity | 114 | 8.2K | 165 | 219 |
| 162 | Biomass Energy | 126 | 8.1K | 121 | 116 |
| 163 | Ophthalmology | 284 | 8.1K | 66 | 89 |
| 164 | Energy Policy | 239 | 8.0K | 51 | 103 |
| 165 | Light | 50 | 8.0K | 90 | 47 |
| 166 | Neurobiology | 164 | 7.9K | 105 | 147 |
| 167 | Behavior | 140 | 7.7K | 305 | 290 |
| 168 | Medical Technology | 131 | 7.6K | 18 | 8 |
| 169 | Hematology | 410 | 7.6K | 115 | 253 |
| 170 | Environmental Law | 118 | 7.5K | 22 | 29 |
| 171 | Oncogenes | 120 | 7.5K | 51 | 84 |
| 172 | Urology | 263 | 7.5K | 69 | 86 |
| 173 | Entomology | 451 | 7.4K | 34 | 47 |
| 174 | Biosensors | 145 | 7.4K | 19 | 23 |
| 175 | Psychology | 233 | 7.3K | 393 | 396 |
| 176 | Industrial Microbiology | 195 | 7.2K | 20 | 40 |
| 177 | Nervous system | 207 | 7.2K | 112 | 195 |
| 178 | Orthopedics | 249 | 7.2K | 24 | 43 |
| 179 | Cardiovascular system | 93 | 7.1K | 177 | 190 |
| 180 | Diagnostic Imaging | 337 | 7.0K | 12 | 66 |
| 181 | Reproduction | 283 | 7.0K | 61 | 109 |
| 182 | plasticity | 74 | 7.0K | 5 | 5 |
| 183 | Medical Laboratory Science | 182 | 6.9K | 52 | 104 |
| 184 | proteins | 220 | 6.9K | 44 | 81 |
| 185 | Cytogenetics | 67 | 6.8K | 152 | 118 |
| 186 | Statistics | 417 | 6.8K | 55 | 145 |
| 187 | Economics | 332 | 6.7K | 219 | 300 |
| 188 | DNA polymerases | 25 | 6.7K | 61 | 32 |
| 189 | Hypertension | 104 | 6.6K | 156 | 175 |
| 190 | Bioelectronics | 117 | 6.6K | 21 | 21 |
| 191 | carcinogens | 130 | 6.6K | 18 | 18 |
| 192 | energy conservation | 113 | 6.6K | 108 | 125 |
| 193 | Manufacturing Processes | 198 | 6.5K | 95 | 80 |
| 194 | Long-Term Care | 21 | 6.5K | 108 | 13 |
| 194 | Long-term care facilities | 21 | 6.5K | 107 | 13 |
| 196 | Structural Engineering | 281 | 6.5K | 31 | 72 |
| 197 | free radicals | 141 | 6.5K | 29 | 55 |
| 198 | Radiobiology | 169 | 6.5K | 73 | 78 |
| 199 | Food Microbiology | 135 | 6.5K | 26 | 38 |
| 200 | drug therapy | 295 | 6.4K | 55 | 118 |
| 201 | Mental Disorders | 154 | 6.4K | 206 | 261 |
| 202 | Business | 73 | 6.3K | 232 | 175 |
| 203 | Nuclear Medicine | 264 | 6.3K | 6 | 30 |
| 204 | Chromosome mapping | 139 | 6.3K | 61 | 72 |
| 205 | Medical Microbiology | 161 | 6.2K | 122 | 197 |
| 206 | Mathematical Physics | 322 | 5.9K | 100 | 215 |
| 207 | Green Chemistry | 123 | 5.9K | 84 | 112 |
| 208 | Combustion | 149 | 5.8K | 70 | 63 |
| 209 | Geriatrics | 330 | 5.8K | 95 | 193 |
| 210 | Obesity | 152 | 5.7K | 110 | 152 |
| 211 | Plant physiology | 127 | 5.7K | 163 | 194 |
| 212 | Oceanography | 190 | 5.7K | 108 | 155 |
| 213 | Medicinal plants | 133 | 5.7K | 31 | 23 |
| 214 | Immunotherapy | 136 | 5.7K | 79 | 145 |
| 215 | cloning | 68 | 5.7K | 16 | 12 |
| 216 | Pancreatic diseases | 32 | 5.6K | 28 | 5 |
| 217 | Aging | 263 | 5.6K | 124 | 195 |
| 218 | Nonlinear Dynamics | 192 | 5.6K | 129 | 142 |
| 219 | Atmospheric Chemistry | 90 | 5.5K | 111 | 124 |
| 220 | computer networks | 274 | 5.5K | 38 | 107 |
| 221 | Rock Mechanics | 93 | 5.4K | 65 | 44 |
| 222 | Signal Transduction | 123 | 5.4K | 40 | 70 |
| 223 | Plant Biotechnology | 199 | 5.4K | 3 | 9 |
| 224 | Energy Storage | 140 | 5.3K | 20 | 47 |
| 225 | Medical Physics | 256 | 5.2K | 58 | 116 |
| 226 | Engineering | 205 | 5.2K | 212 | 182 |
| 227 | Environmental pollutants | 120 | 5.2K | 80 | 62 |
| 228 | Chromosomes | 51 | 5.2K | 83 | 17 |
| 229 | Diet | 94 | 5.2K | 199 | 207 |
| 230 | Technological Innovations | 133 | 5.1K | 3 | 3 |
| 231 | Plant genetic engineering | 95 | 5.1K | 30 | 29 |
| 232 | Drug delivery systems | 86 | 5.1K | 64 | 70 |
| 233 | Mycology | 150 | 5.1K | 60 | 69 |
| 234 | Econometrics | 115 | 5.1K | 68 | 95 |
| 235 | Molecular Imaging | 220 | 5.1K | 2 | 30 |
| 236 | Geochemistry | 130 | 5.1K | 225 | 244 |
| 237 | mutation | 37 | 5.0K | 55 | 8 |
| 238 | Systems Biology | 179 | 4.9K | 11 | 24 |
| 239 | Nuclear Engineering | 440 | 4.9K | 33 | 47 |
| 240 | Physical Chemistry | 104 | 4.9K | 225 | 197 |
| 241 | Carcinogenesis | 88 | 4.9K | 29 | 23 |
| 242 | human behavior | 77 | 4.8K | 325 | 317 |
| 243 | Psychophysiology | 83 | 4.8K | 473 | 378 |
| 244 | enzymes | 194 | 4.8K | 15 | 43 |
| 245 | Insects | 365 | 4.8K | 3 | 34 |
| 246 | energy development | 51 | 4.7K | 25 | 54 |
| 247 | Education | 251 | 4.6K | 200 | 255 |
| 248 | Developmental Biology | 91 | 4.6K | 239 | 272 |
| 249 | drugs | 156 | 4.6K | 75 | 91 |
| 250 | Electrical Engineering | 532 | 4.6K | 50 | 133 |
| 251 | mass transfer | 162 | 4.6K | 65 | 106 |
| 252 | Marine Biology | 152 | 4.5K | 190 | 233 |
| 253 | Therapeutics | 153 | 4.5K | 85 | 125 |
| 254 | mutagens | 76 | 4.5K | 31 | 25 |
| 255 | Dermatology | 180 | 4.5K | 92 | 120 |
| 256 | Molecular Microbiology | 65 | 4.5K | 78 | 104 |
| 256 | Critical Care Medicine | 68 | 4.5K | 196 | 208 |
| 258 | Gene expression regulation | 50 | 4.5K | 84 | 82 |
| 259 | Molecular structure | 92 | 4.5K | 175 | 156 |
| 260 | Environmental Management | 110 | 4.5K | 180 | 239 |
| 261 | Critical Care | 68 | 4.5K | 194 | 213 |
| 262 | Pediatrics | 124 | 4.4K | 220 | 257 |
| 263 | marketing | 93 | 4.4K | 149 | 213 |
| 264 | Civil Engineering | 263 | 4.4K | 18 | 25 |
| 265 | Genetic therapy | 124 | 4.4K | 36 | 58 |
| 266 | Electromagnetism | 163 | 4.4K | 16 | 14 |
| 267 | Pediatric Neurology | 83 | 4.4K | 81 | 127 |
| 268 | Europe | 182 | 4.4K | 182 | 183 |
| 269 | Diagnostic microbiology | 67 | 4.4K | 98 | 135 |
| 270 | Information Science | 135 | 4.3K | 107 | 139 |
| 271 | Engineering Geology | 104 | 4.3K | 83 | 75 |
| 272 | Fungi | 115 | 4.3K | 28 | 57 |
| 273 | micromechanics | 140 | 4.2K | 6 | 11 |
| 274 | Sleep Disorders | 206 | 4.2K | 41 | 98 |
| 275 | Serology | 23 | 4.2K | 47 | 4 |
| 276 | Memory | 141 | 4.2K | 136 | 176 |
| 277 | Sustainable Engineering | 97 | 4.1K | 67 | 91 |
| 278 | Pharmaceutical Technology | 146 | 4.1K | 16 | 41 |
| 279 | Public Administration | 139 | 4.1K | 50 | 64 |
| 280 | Fluid Mechanics | 124 | 4.1K | 75 | 82 |
| 281 | Sleep | 206 | 4.1K | 42 | 108 |
| 282 | Soil Mechanics | 82 | 4.1K | 100 | 81 |
| 283 | arthritis | 72 | 4.1K | 142 | 138 |
| 284 | Allergy | 104 | 4.1K | 77 | 181 |
| 285 | Computer-Aided Design | 167 | 4.0K | 8 | 32 |
| 286 | concrete | 54 | 4.0K | 104 | 98 |
| 287 | Developmental Genetics | 22 | 4.0K | 121 | 86 |
| 288 | Thrombosis | 81 | 4.0K | 92 | 80 |
| 288 | Semiconductors | 277 | 4.0K | 21 | 48 |
| 290 | protein | 124 | 3.9K | 39 | 85 |
| 291 | Breeding | 104 | 3.9K | 67 | 64 |
| 292 | Earthquake Engineering | 151 | 3.9K | 77 | 124 |
| 293 | Korea | 317 | 3.9K | 1 | 1 |
| 294 | Radiation | 104 | 3.8K | 119 | 70 |
| 295 | pollutants | 90 | 3.8K | 95 | 90 |
| 296 | Neurons | 33 | 3.8K | 124 | 187 |
| 297 | viral genetics | 16 | 3.8K | 90 | 73 |
| 298 | Energy Harvesting | 70 | 3.8K | 10 | 42 |
| 299 | Nuclear Fusion | 228 | 3.8K | 28 | 37 |
| 300 | Parasitology | 127 | 3.8K | 114 | 120 |
| 301 | Transplantation | 173 | 3.7K | 57 | 123 |
| 301 | Host-parasite interactions | 41 | 3.7K | 197 | 186 |
| 303 | Mental illness | 108 | 3.7K | 154 | 251 |
| 304 | Ceramic materials | 99 | 3.7K | 60 | 46 |
| 305 | Psychopharmacology | 115 | 3.7K | 107 | 192 |
| 306 | Immunopharmacology | 80 | 3.7K | 61 | 34 |
| 307 | cell physiology | 114 | 3.6K | 95 | 184 |
| 308 | cytokines | 72 | 3.6K | 61 | 45 |
| 309 | Attention | 128 | 3.6K | 132 | 148 |
| 310 | Solid State Chemistry | 169 | 3.6K | 131 | 148 |
| 311 | commerce | 54 | 3.6K | 110 | 126 |
| 312 | Parasitic Diseases | 97 | 3.6K | 108 | 122 |
| 313 | Cardiovascular diseases | 167 | 3.5K | 47 | 98 |
| 314 | Plant Ecology | 152 | 3.5K | 70 | 219 |
| 315 | Economic History | 261 | 3.5K | 82 | 206 |
| 315 | Perception | 125 | 3.5K | 171 | 187 |
| 317 | Neuropsychology | 80 | 3.5K | 307 | 261 |
| 318 | Mechatronics | 79 | 3.5K | 33 | 23 |
| 319 | Health Policy | 87 | 3.5K | 237 | 166 |
| 319 | Japan | 222 | 3.5K | 60 | 54 |
| 321 | Visual Perception | 123 | 3.5K | 128 | 139 |
| 322 | Industrial Engineering | 138 | 3.5K | 71 | 111 |
| 323 | Mobile Computing | 76 | 3.5K | 63 | 43 |
| 324 | tomography | 101 | 3.4K | 7 | 4 |
| 325 | Hydrology | 123 | 3.4K | 181 | 259 |
| 326 | Computer Vision | 78 | 3.4K | 72 | 133 |
| 327 | Mining Engineering | 47 | 3.4K | 42 | 23 |
| 328 | Superconductors | 276 | 3.4K | 18 | 25 |
| 329 | biopolymers | 95 | 3.4K | 69 | 79 |
| 330 | Embryology | 101 | 3.3K | 157 | 241 |
| 331 | lasers | 141 | 3.3K | 136 | 121 |
| 332 | Quantum electronics | 132 | 3.2K | 92 | 89 |
| 333 | Systems Engineering | 124 | 3.2K | 88 | 122 |
| 334 | Nuclear Energy | 282 | 3.2K | 21 | 30 |
| 335 | Antioxidants | 73 | 3.2K | 8 | 48 |
| 336 | Sociology | 120 | 3.2K | 286 | 322 |
| 337 | Proteome | 99 | 3.2K | 40 | 91 |
| 338 | Social Change | 53 | 3.2K | 24 | 35 |
| 339 | Communication | 110 | 3.1K | 156 | 216 |
| 340 | Fiber Optics | 40 | 3.1K | 172 | 58 |
| 341 | rehabilitation | 130 | 3.1K | 140 | 205 |
| 342 | Emergency Medicine | 177 | 3.1K | 55 | 74 |
| 343 | Plant diseases | 121 | 3.1K | 151 | 161 |
| 344 | Telecommunication Systems | 193 | 3.1K | 12 | 24 |
| 345 | Alzheimer's disease | 354 | 3.1K | 44 | 116 |
| 346 | Public Policy | 95 | 3.1K | 112 | 119 |
| 347 | mathematical analysis | 239 | 3.1K | 53 | 104 |
| 348 | Spine | 61 | 3.1K | 66 | 72 |
| 349 | Cell metabolism | 20 | 3.0K | 128 | 136 |
| 350 | Neurosurgery | 84 | 3.0K | 34 | 56 |
| 351 | Molecular Genetics | 100 | 3.0K | 146 | 282 |
| 352 | gene therapy | 90 | 3.0K | 50 | 106 |
| 353 | Homeostasis | 15 | 3.0K | 116 | 133 |
| 354 | Biodiversity conservation | 28 | 3.0K | 434 | 379 |
| 355 | Vaccines | 131 | 3.0K | 80 | 136 |
| 356 | Smart Materials | 94 | 3.0K | 30 | 35 |
| 357 | Orthopedic Surgery | 93 | 3.0K | 20 | 20 |
| 358 | Oxidation-reduction | 60 | 3.0K | 31 | 82 |
| 359 | Textile industry | 157 | 3.0K | 8 | 6 |
| 360 | System analysis | 104 | 2.9K | 158 | 160 |
| 361 | energy resources | 70 | 2.9K | 74 | 187 |
| 362 | Schizophrenia | 89 | 2.9K | 91 | 123 |
| 363 | textile fibers | 146 | 2.9K | 7 | 4 |
| 364 | Cement | 26 | 2.9K | 112 | 76 |
| 365 | histological techniques | 41 | 2.8K | 53 | 34 |
| 366 | environmental exposure | 112 | 2.8K | 54 | 110 |
| 367 | Climate change | 19 | 2.8K | 338 | 334 |
| 368 | Social Psychology | 73 | 2.8K | 343 | 391 |
| 369 | Eutrophication | 18 | 2.8K | 341 | 333 |
| 370 | vascular diseases | 30 | 2.8K | 137 | 86 |
| 371 | pigments | 93 | 2.8K | 18 | 10 |
| 372 | Water quality management | 127 | 2.8K | 49 | 79 |
| 373 | Developing countries | 84 | 2.7K | 188 | 202 |
| 374 | Electrophoresis | 122 | 2.7K | 42 | 85 |
| 375 | Child | 130 | 2.7K | 171 | 226 |
| 376 | Structural design | 90 | 2.7K | 25 | 32 |
| 377 | Virulence | 36 | 2.6K | 226 | 211 |
| 378 | Information Technology | 102 | 2.6K | 99 | 220 |
| 379 | United Kingdom | 62 | 2.6K | 210 | 219 |
| 380 | Radio | 96 | 2.6K | 148 | 232 |
| 381 | Molecular cloning | 77 | 2.6K | 58 | 86 |
| 382 | Histology | 78 | 2.6K | 197 | 246 |
| 383 | Plant Genetics | 48 | 2.6K | 50 | 70 |
| 384 | Adaptive control systems | 90 | 2.6K | 6 | 4 |
| 385 | Digestive system diseases | 95 | 2.6K | 43 | 40 |
| 386 | coal | 78 | 2.6K | 125 | 184 |
| 387 | Operations Research | 82 | 2.5K | 262 | 275 |
| 388 | Enzyme | 89 | 2.5K | 4 | 10 |
| 389 | Engineering Mathematics | 101 | 2.5K | 107 | 106 |
| 390 | Recombinant DNA | 75 | 2.5K | 78 | 107 |
| 391 | China | 155 | 2.5K | 155 | 202 |
| 392 | cell interaction | 60 | 2.5K | 42 | 44 |
| 393 | finance | 132 | 2.5K | 113 | 249 |
| 394 | Optoelectronics | 14 | 2.4K | 140 | 1 |
| 395 | Meteorites | 42 | 2.4K | 219 | 229 |
| 396 | Bones | 48 | 2.4K | 74 | 94 |
| 397 | Molecular Pharmacology | 50 | 2.4K | 59 | 60 |
| 398 | complementary therapies | 66 | 2.4K | 94 | 62 |
| 399 | Kidney diseases | 86 | 2.4K | 52 | 75 |
| 400 | Functional foods | 72 | 2.4K | 6 | 4 |
| 400 | Phytotherapy | 72 | 2.4K | 8 | 9 |
| 402 | Radiography | 34 | 2.4K | 136 | 136 |
| 403 | Genetic recombination | 68 | 2.4K | 77 | 97 |
| 404 | Agricultural Engineering | 69 | 2.4K | 15 | 17 |
| 405 | soil microbiology | 44 | 2.4K | 251 | 295 |
| 406 | Hormones | 52 | 2.4K | 172 | 150 |
| 407 | Chromatographic analysis | 138 | 2.3K | 50 | 76 |
| 408 | Soft Condensed Matter | 68 | 2.3K | 122 | 121 |
| 409 | drug development | 22 | 2.3K | 193 | 154 |
| 410 | Building Materials | 78 | 2.3K | 201 | 304 |
| 411 | health planning | 70 | 2.3K | 181 | 122 |
| 412 | Fluid Dynamics | 80 | 2.3K | 90 | 94 |
| 412 | Microwaves | 128 | 2.3K | 92 | 133 |
| 414 | Production Management | 31 | 2.3K | 243 | 206 |
| 415 | Alternative Medicine | 70 | 2.3K | 76 | 62 |
| 416 | Clinical Pharmacology | 108 | 2.3K | 61 | 103 |
| 417 | Chemotherapy | 136 | 2.2K | 35 | 125 |
| 418 | Pharmacogenetics | 78 | 2.2K | 41 | 74 |
| 419 | Tissue Engineering | 113 | 2.2K | 2 | 10 |
| 420 | biological evolution | 60 | 2.2K | 351 | 491 |
| 421 | Pesticides | 68 | 2.2K | 21 | 14 |
| 422 | Structural optimization | 68 | 2.2K | 13 | 18 |
| 423 | Gerontology | 179 | 2.2K | 104 | 198 |
| 424 | Genes | 149 | 2.2K | 14 | 59 |
| 425 | Building | 59 | 2.2K | 46 | 36 |
| 426 | bioclimatology | 55 | 2.2K | 22 | 23 |
| 427 | Horticulture | 140 | 2.2K | 9 | 16 |
| 428 | Solar Energy | 54 | 2.1K | 154 | 164 |
| 428 | Marine Pollution | 66 | 2.1K | 63 | 113 |
| 428 | medical education | 79 | 2.1K | 199 | 196 |
| 431 | drug evaluation | 106 | 2.1K | 15 | 48 |
| 432 | Transportation | 121 | 2.1K | 126 | 229 |
| 433 | Protozoa | 36 | 2.1K | 30 | 30 |
| 434 | Medical Anthropology | 38 | 2.1K | 231 | 219 |
| 435 | Quality Control | 82 | 2.1K | 63 | 99 |
| 436 | Photochemistry | 74 | 2.1K | 84 | 138 |
| 437 | Biopharmaceutics | 39 | 2.1K | 122 | 86 |
| 438 | Environmental Microbiology | 52 | 2.1K | 130 | 236 |
| 439 | fertility | 74 | 2.1K | 94 | 166 |
| 440 | Structural dynamics | 80 | 2.1K | 80 | 157 |
| 441 | Infertility | 71 | 2.1K | 89 | 153 |
| 442 | Anatomy | 67 | 2.1K | 289 | 320 |
| 443 | Hydraulic Engineering | 95 | 2.0K | 70 | 100 |
| 443 | organization | 17 | 2.0K | 264 | 185 |
| 445 | Bipolar Disorder | 13 | 2.0K | 111 | 43 |
| 446 | Health Education | 84 | 2.0K | 203 | 219 |
| 447 | Production Engineering | 107 | 2.0K | 130 | 167 |
| 448 | Naval Architecture | 140 | 2.0K | 7 | 10 |
| 449 | Muscles | 78 | 1.9K | 41 | 89 |
| 450 | Heat Exchangers | 76 | 1.9K | 74 | 135 |
| 451 | Parasites | 31 | 1.9K | 316 | 126 |
| 452 | Hematopoietic stem cell transplantation | 36 | 1.9K | 12 | 10 |
| 453 | Sedimentary rocks | 42 | 1.9K | 20 | 27 |
| 454 | Microwave devices | 70 | 1.9K | 25 | 30 |
| 455 | Adolescent | 78 | 1.9K | 222 | 275 |
| 456 | Chromatography | 100 | 1.9K | 62 | 92 |
| 457 | microwave communication systems | 65 | 1.9K | 16 | 22 |
| 458 | visualization | 147 | 1.9K | 54 | 87 |
| 459 | Food additives | 69 | 1.8K | 59 | 147 |
| 460 | Functional Analysis | 127 | 1.8K | 23 | 79 |
| 461 | Atmospheric Science | 102 | 1.8K | 1 | 4 |
| 462 | Rheumatology | 49 | 1.8K | 154 | 210 |
| 463 | Lipids | 47 | 1.8K | 157 | 197 |
| 464 | Physical Therapy | 65 | 1.8K | 130 | 185 |
| 464 | Respiration | 82 | 1.8K | 144 | 242 |
| 466 | Information Theory | 57 | 1.8K | 185 | 202 |
| 467 | Plant tissue culture | 39 | 1.8K | 53 | 32 |
| 467 | Plant cell culture | 39 | 1.8K | 38 | 30 |
| 469 | solar cells | 43 | 1.8K | 66 | 83 |
| 470 | Rheology | 49 | 1.8K | 57 | 53 |
| 471 | personality | 37 | 1.8K | 357 | 376 |
| 472 | Raman spectroscopy | 57 | 1.8K | 26 | 29 |
| 473 | Algal blooms | 44 | 1.8K | 9 | 29 |
| 473 | Cyanobacteria | 44 | 1.8K | 9 | 29 |
| 473 | microalgae | 44 | 1.8K | 9 | 29 |
| 476 | Zoology | 126 | 1.8K | 199 | 344 |
| 477 | Numerical Analysis | 93 | 1.7K | 191 | 230 |
| 478 | viruses | 53 | 1.7K | 248 | 333 |
| 479 | Waste management | 75 | 1.7K | 56 | 66 |
| 480 | Australia | 80 | 1.7K | 124 | 127 |
| 481 | solar power | 41 | 1.7K | 55 | 71 |
| 482 | Intelligent Transportation Systems | 62 | 1.7K | 89 | 150 |
| 483 | Process Control | 32 | 1.7K | 116 | 164 |
| 484 | Parenteral nutrition | 33 | 1.7K | 171 | 174 |
| 485 | Industrial Safety | 62 | 1.7K | 72 | 94 |
| 486 | Adhesion | 57 | 1.7K | 14 | 13 |
| 486 | Quality of life | 75 | 1.7K | 62 | 193 |
| 486 | adhesives | 57 | 1.7K | 18 | 13 |
| 489 | Animal Behavior | 56 | 1.7K | 371 | 453 |
| 490 | Enteral nutrition | 29 | 1.7K | 122 | 133 |
| 491 | Genetic Toxicology | 19 | 1.6K | 51 | 27 |
| 492 | Ultrasonics | 46 | 1.6K | 141 | 148 |
| 493 | Herbal medicine | 36 | 1.6K | 68 | 56 |
| 494 | Cognition | 69 | 1.6K | 283 | 383 |
| 495 | behavioral medicine | 41 | 1.6K | 209 | 261 |
| 496 | Catalysts | 54 | 1.6K | 29 | 42 |
| 497 | Tunneling | 23 | 1.6K | 73 | 44 |
| 497 | underground construction | 23 | 1.6K | 73 | 44 |
| 499 | Electrochemical Analysis | 64 | 1.6K | 163 | 195 |
| 500 | city planning | 116 | 1.6K | 73 | 202 |
| 501 | Environmental Geology | 81 | 1.6K | 64 | 176 |
| 502 | Radio waves | 62 | 1.6K | 124 | 172 |
| 503 | Growth | 36 | 1.6K | 257 | 339 |
| 504 | Bacterial infections | 23 | 1.6K | 140 | 196 |
| 505 | Politics | 15 | 1.6K | 180 | 53 |
| 505 | government | 15 | 1.6K | 206 | 73 |
| 507 | Social Sciences | 119 | 1.6K | 291 | 447 |
| 507 | Water Purification | 68 | 1.6K | 50 | 66 |
| 509 | Educational Technology | 43 | 1.5K | 181 | 146 |
| 510 | Mass Spectrometry | 82 | 1.5K | 62 | 157 |
| 511 | Surface-Active Agents | 44 | 1.5K | 76 | 107 |
| 511 | Surface properties | 44 | 1.5K | 83 | 118 |
| 513 | Radioisotopes | 76 | 1.5K | 49 | 40 |
| 514 | software | 57 | 1.5K | 24 | 73 |
| 515 | mycoses | 24 | 1.5K | 136 | 190 |
| 516 | Decision making | 49 | 1.5K | 159 | 212 |
| 517 | biocatalysis | 10 | 1.5K | 42 | 87 |
| 517 | Homogeneous catalysis | 10 | 1.5K | 42 | 87 |
| 517 | Heterogeneous catalysis | 10 | 1.5K | 42 | 87 |
| 520 | Biodiversity | 50 | 1.5K | 348 | 440 |
| 521 | Database Management | 79 | 1.5K | 59 | 135 |
| 522 | Zeolites | 33 | 1.5K | 123 | 104 |
| 523 | pain | 61 | 1.5K | 170 | 289 |
| 524 | Inflammation | 33 | 1.5K | 150 | 169 |
| 525 | food handling | 53 | 1.5K | 41 | 73 |
| 526 | food contamination | 33 | 1.5K | 86 | 34 |
| 527 | ecosystem | 30 | 1.5K | 300 | 313 |
| 528 | Nursing | 62 | 1.5K | 209 | 165 |
| 528 | Nanoelectronics | 105 | 1.5K | 27 | 29 |
| 530 | vibration | 62 | 1.5K | 96 | 164 |
| 531 | Sexual health | 44 | 1.5K | 83 | 75 |
| 532 | Regenerative Medicine | 92 | 1.4K | 1 | 1 |
| 533 | Sedimentology | 25 | 1.4K | 88 | 69 |
| 534 | preventive medicine | 30 | 1.4K | 250 | 223 |
| 535 | water supply | 28 | 1.4K | 210 | 206 |
| 536 | economic policy | 94 | 1.4K | 178 | 271 |
| 536 | Astrocytes | 21 | 1.4K | 81 | 87 |
| 538 | Chemical analysis | 40 | 1.4K | 93 | 85 |
| 539 | Immunochemistry | 53 | 1.4K | 57 | 83 |
| 540 | infection | 53 | 1.4K | 219 | 328 |
| 541 | Neuropsychiatry | 43 | 1.4K | 88 | 109 |
| 542 | Child Development | 66 | 1.4K | 293 | 435 |
| 543 | Clinical Immunology | 53 | 1.4K | 139 | 173 |
| 544 | embryonic development | 51 | 1.4K | 13 | 25 |
| 545 | Hemostasis | 57 | 1.4K | 41 | 54 |
| 546 | Quantum theory | 64 | 1.4K | 75 | 95 |
| 547 | Convergence | 39 | 1.4K | 3 | 4 |
| 548 | Soil biology | 21 | 1.3K | 280 | 264 |
| 549 | Organometallic chemistry | 52 | 1.3K | 264 | 188 |
| 550 | Molecular evolution | 41 | 1.3K | 237 | 365 |
| 550 | Aerosols | 55 | 1.3K | 49 | 76 |
| 552 | Health | 75 | 1.3K | 226 | 366 |
| 553 | Child welfare | 58 | 1.3K | 107 | 122 |
| 554 | catalytic activity | 33 | 1.3K | 80 | 85 |
| 555 | supercritical fluids | 50 | 1.3K | 20 | 34 |
| 556 | Photobiology | 45 | 1.3K | 102 | 122 |
| 557 | Analytical Biochemistry | 57 | 1.3K | 142 | 244 |
| 558 | Hydrodynamics | 45 | 1.3K | 54 | 91 |
| 559 | probabilities | 95 | 1.3K | 106 | 125 |
| 560 | Ultrasound | 35 | 1.3K | 114 | 88 |
| 561 | Genetic algorithms | 21 | 1.3K | 59 | 101 |
| 562 | Neurotoxicology | 26 | 1.3K | 54 | 44 |
| 563 | epilepsy | 47 | 1.3K | 87 | 107 |
| 563 | Neural circuitry | 60 | 1.3K | 188 | 382 |
| 565 | Radiology | 79 | 1.3K | 104 | 136 |
| 566 | Systems Analysis | 44 | 1.3K | 93 | 74 |
| 567 | Climate | 32 | 1.3K | 37 | 62 |
| 568 | Differential Equations | 79 | 1.3K | 43 | 116 |
| 569 | Proteomics | 41 | 1.3K | 110 | 187 |
| 570 | Forest Ecology | 27 | 1.2K | 230 | 210 |
| 571 | Plant breeding | 46 | 1.2K | 68 | 69 |
| 572 | Semiconductor industry | 74 | 1.2K | 26 | 25 |
| 573 | Geodynamics | 48 | 1.2K | 134 | 238 |
| 574 | Cybernetics | 50 | 1.2K | 232 | 367 |
| 575 | Food Preservation | 22 | 1.2K | 122 | 27 |
| 575 | hygiene | 35 | 1.2K | 30 | 27 |
| 577 | Pharmacokinetics | 40 | 1.2K | 62 | 109 |
| 578 | Nanochemistry | 57 | 1.2K | 55 | 59 |
| 579 | Economic Development | 44 | 1.2K | 236 | 363 |
| 580 | Mineralogy | 56 | 1.2K | 261 | 352 |
| 581 | Petroleum Engineering | 49 | 1.2K | 98 | 94 |
| 582 | Psychosomatic Medicine | 23 | 1.2K | 180 | 167 |
| 583 | Chronic diseases | 5 | 1.2K | 433 | 195 |
| 584 | Minerals | 25 | 1.2K | 91 | 52 |
| 585 | occupational diseases | 48 | 1.2K | 71 | 132 |
| 586 | gastrointestinal tract | 14 | 1.1K | 61 | 45 |
| 587 | Ergonomics | 95 | 1.1K | 70 | 127 |
| 588 | Microbial Genetics | 24 | 1.1K | 44 | 52 |
| 588 | phytopathogenic bacteria | 24 | 1.1K | 35 | 50 |
| 590 | Agriculture | 39 | 1.1K | 382 | 410 |
| 591 | natural disasters | 45 | 1.1K | 83 | 176 |
| 592 | Biogeochemistry | 29 | 1.1K | 278 | 336 |
| 592 | Learning | 28 | 1.1K | 343 | 349 |
| 594 | brain mapping | 35 | 1.1K | 97 | 169 |
| 595 | Infections | 33 | 1.1K | 196 | 297 |
| 596 | Respiratory system | 38 | 1.1K | 52 | 64 |
| 597 | Multimedia Systems | 61 | 1.1K | 155 | 218 |
| 598 | Detectors | 71 | 1.1K | 97 | 193 |
| 599 | Tropical Medicine | 49 | 1.1K | 213 | 226 |
| 600 | Human-Computer Interaction | 43 | 1.1K | 162 | 230 |
| 600 | Transgenic plants | 39 | 1.1K | 24 | 47 |
| 602 | Boundary Value Problems | 37 | 1.1K | 96 | 89 |
| 603 | Telemedicine | 38 | 1.1K | 16 | 26 |
| 604 | Forest Management | 24 | 1.1K | 244 | 218 |
| 605 | Lightweight concrete | 27 | 1.1K | 67 | 129 |
| 606 | Antenna Arrays | 35 | 1.1K | 84 | 86 |
| 607 | vitamin C | 37 | 1.1K | 8 | 27 |
| 607 | drug toxicity | 19 | 1.1K | 39 | 13 |
| 607 | vitamin E | 37 | 1.1K | 8 | 27 |
| 610 | Terahertz Technology | 4 | 1.1K | 121 | 8 |
| 611 | Evolution | 39 | 1.1K | 426 | 590 |
| 612 | International Finance | 63 | 1.1K | 158 | 335 |
| 613 | Biomolecules | 30 | 1.1K | 26 | 85 |
| 614 | Bioinorganic chemistry | 32 | 1.1K | 352 | 273 |
| 615 | Data Mining | 89 | 1.1K | 36 | 354 |
| 616 | Antibacterial agents | 24 | 1.0K | 78 | 76 |
| 617 | Flexible electronics | 17 | 1.0K | 3 | 2 |
| 618 | Paleontology | 51 | 1.0K | 227 | 257 |
| 619 | Social work | 52 | 1.0K | 232 | 208 |
| 620 | Gastrointestinal diseases | 36 | 1.0K | 40 | 29 |
| 621 | Leukemia | 32 | 1.0K | 227 | 316 |
| 622 | Biomechanics | 43 | 1.0K | 209 | 299 |
| 623 | East Asia | 105 | 1.0K | 3 | 5 |
| 624 | Computer Science | 92 | 1.0K | 74 | 207 |
| 625 | Marine Engineering | 98 | 1.0K | 4 | 8 |
| 625 | Mechanics | 53 | 1.0K | 131 | 171 |
| 627 | Sarcopenia | 37 | 1.0K | 6 | 55 |
| 628 | Informatics | 34 | 1.0K | 71 | 117 |
| 629 | hydrocolloids | 23 | 1.0K | 138 | 199 |
| 629 | alcoholism | 30 | 1.0K | 359 | 351 |
| 631 | Biomass | 16 | 1.0K | 137 | 100 |
| 632 | nuclear power | 77 | 1.0K | 36 | 27 |
| 633 | Oral Medicine | 82 | 1.0K | 14 | 24 |
| 634 | Artificial Organs | 81 | 1.0K | 19 | 49 |
| 635 | Soil ecology | 15 | 1.0K | 242 | 150 |
| 636 | Microbial Biotechnology | 31 | 1.0K | 81 | 93 |
| 637 | Cellulose | 32 | 997 | 61 | 103 |
| 638 | Tourism | 20 | 996 | 489 | 482 |
| 639 | Paleoclimatology | 48 | 994 | 173 | 313 |
| 640 | Natural resources | 25 | 993 | 142 | 157 |
| 641 | Health Services Research | 53 | 987 | 228 | 314 |
| 642 | wind erosion | 1 | 981 | 216 | 7 |
| 643 | Radiation Oncology | 42 | 978 | 18 | 30 |
| 644 | Global Health | 39 | 977 | 121 | 100 |
| 645 | Dementia | 288 | 971 | 50 | 209 |
| 646 | Geography | 38 | 963 | 474 | 517 |
| 647 | Immunopathology | 35 | 959 | 270 | 323 |
| 647 | Oxidative stress | 27 | 959 | 96 | 228 |
| 649 | weather | 35 | 955 | 18 | 56 |
| 650 | Immunogenetics | 38 | 948 | 68 | 97 |
| 651 | Hazardous waste | 31 | 946 | 89 | 234 |
| 652 | Dentistry | 83 | 945 | 49 | 87 |
| 653 | Regional Planning | 72 | 944 | 145 | 346 |
| 654 | Hemodynamics | 21 | 943 | 185 | 217 |
| 655 | Marine Meteorology | 46 | 940 | 56 | 99 |
| 656 | Solar System | 38 | 930 | 170 | 223 |
| 657 | Nephrology | 19 | 926 | 137 | 133 |
| 658 | Child psychology | 24 | 924 | 440 | 492 |
| 659 | Environmental Geochemistry | 24 | 923 | 29 | 20 |
| 659 | Neuromuscular diseases | 41 | 923 | 66 | 126 |
| 661 | Paleoecology | 45 | 919 | 165 | 289 |
| 662 | Otolaryngology | 27 | 915 | 113 | 101 |
| 663 | air quality management | 34 | 912 | 21 | 50 |
| 664 | Histocompatibility Testing | 41 | 907 | 29 | 47 |
| 665 | Soil Science | 27 | 905 | 496 | 520 |
| 665 | Petrology | 29 | 905 | 309 | 361 |
| 665 | Paleogeography | 43 | 905 | 142 | 265 |
| 665 | aerosol | 38 | 905 | 37 | 56 |
| 669 | Ecological Engineering | 19 | 896 | 82 | 80 |
| 670 | Immune system | 28 | 892 | 204 | 437 |
| 671 | disease vectors | 33 | 890 | 125 | 155 |
| 672 | Information Systems | 42 | 889 | 137 | 230 |
| 673 | Adolescent Medicine | 6 | 880 | 314 | 209 |
| 674 | Vision | 22 | 879 | 200 | 201 |
| 675 | industrial waste | 27 | 874 | 90 | 240 |
| 676 | calcification | 27 | 873 | 68 | 110 |
| 677 | Ventilation | 32 | 871 | 53 | 68 |
| 678 | radioactive waste | 24 | 869 | 94 | 241 |
| 679 | Fashion | 72 | 867 | 2 | 5 |
| 680 | Smoking | 25 | 865 | 188 | 191 |
| 681 | Ultrasonic Imaging | 20 | 860 | 97 | 47 |
| 682 | Chemical Oceanography | 21 | 859 | 76 | 100 |
| 683 | Randomized Controlled Trials | 84 | 858 | 60 | 108 |
| 684 | Geomagnetism | 30 | 855 | 147 | 143 |
| 685 | Drug design | 27 | 853 | 284 | 334 |
| 686 | Dynamics | 61 | 849 | 133 | 211 |
| 686 | industrial hygiene | 47 | 849 | 70 | 52 |
| 688 | Chemical Ecology | 21 | 846 | 100 | 116 |
| 688 | Geriatric Psychiatry | 32 | 846 | 144 | 178 |
| 690 | Leadership | 10 | 843 | 191 | 161 |
| 691 | Insect biochemistry | 22 | 842 | 80 | 93 |
| 692 | Molecular Spectroscopy | 32 | 841 | 382 | 335 |
| 693 | Mathematical Economics | 15 | 836 | 86 | 96 |
| 694 | Crystallography | 100 | 834 | 107 | 229 |
| 695 | pheromones | 19 | 832 | 103 | 112 |
| 696 | educational planning | 9 | 831 | 159 | 60 |
| 697 | Superconductivity | 44 | 830 | 40 | 56 |
| 698 | Biogeochemical cycles | 13 | 824 | 150 | 203 |
| 699 | Health Information Management | 3 | 823 | 314 | 133 |
| 699 | Erectile dysfunction | 26 | 823 | 21 | 19 |
| 701 | Crystal growth | 41 | 822 | 101 | 197 |
| 702 | Primary health care | 43 | 821 | 291 | 337 |
| 702 | Development | 20 | 821 | 188 | 215 |
| 704 | drug addiction | 15 | 818 | 422 | 327 |
| 705 | Photography | 334 | 817 | 73 | 98 |
| 706 | animal diseases | 52 | 812 | 37 | 66 |
| 706 | biomimicry | 18 | 812 | 14 | 11 |
| 708 | Organometallic compounds | 18 | 811 | 484 | 324 |
| 709 | structural stability | 20 | 807 | 59 | 68 |
| 710 | Economic Assistance | 20 | 805 | 156 | 199 |
| 711 | Phylogeny | 23 | 802 | 191 | 256 |
| 712 | Social behavior | 46 | 792 | 174 | 359 |
| 713 | Disease | 8 | 785 | 118 | 331 |
| 714 | machinery | 19 | 781 | 179 | 101 |
| 715 | Business Ethics | 8 | 773 | 572 | 458 |
| 715 | Microscopy | 41 | 773 | 184 | 251 |
| 717 | DNS | 22 | 771 | 48 | 50 |
| 718 | Molecular ecology | 14 | 770 | 449 | 451 |
| 719 | innovation | 19 | 769 | 98 | 272 |
| 720 | Roads | 55 | 767 | 110 | 129 |
| 721 | Marine resources | 22 | 766 | 109 | 83 |
| 722 | Nanobiotechnology | 21 | 765 | 56 | 108 |
| 723 | Strategic planning | 25 | 764 | 86 | 146 |
| 724 | cardiac catheterization | 34 | 762 | 109 | 103 |
| 725 | Computer Architecture | 57 | 760 | 21 | 42 |
| 726 | X-rays | 44 | 759 | 28 | 31 |
| 727 | data collection | 29 | 752 | 132 | 291 |
| 728 | Liquid Crystals | 149 | 750 | 24 | 77 |
| 729 | Sound | 35 | 749 | 185 | 183 |
| 730 | Antigens | 41 | 747 | 95 | 193 |
| 731 | Marine algae | 44 | 743 | 1 | 2 |
| 732 | Sports Medicine | 79 | 740 | 335 | 714 |
| 733 | Fracture mechanics | 33 | 738 | 347 | 385 |
| 734 | toxicity testing | 33 | 737 | 28 | 58 |
| 735 | Endocrine glands | 6 | 728 | 138 | 104 |
| 735 | diseases | 4 | 728 | 232 | 344 |
| 737 | Geometry | 72 | 722 | 103 | 116 |
| 738 | Urban Policy | 34 | 719 | 87 | 167 |
| 739 | Cognitive neuroscience | 22 | 718 | 315 | 414 |
| 740 | Hydrogeology | 25 | 714 | 94 | 104 |
| 740 | Autoimmunity | 15 | 714 | 243 | 247 |
| 742 | Telecommunications | 37 | 712 | 30 | 55 |
| 742 | Integrated Circuits | 89 | 712 | 10 | 26 |
| 744 | indoor air pollution | 24 | 707 | 43 | 77 |
| 744 | Sick building syndrome | 24 | 707 | 43 | 77 |
| 746 | Histochemistry | 31 | 702 | 173 | 232 |
| 747 | gene transfer | 23 | 701 | 14 | 28 |
| 747 | genetic transformation | 23 | 701 | 14 | 28 |
| 749 | Calorimetry | 14 | 700 | 424 | 151 |
| 749 | Thermal analysis | 14 | 700 | 424 | 151 |
| 751 | clay | 16 | 699 | 201 | 195 |
| 752 | stem cell transplantation | 68 | 696 | 3 | 4 |
| 752 | Cosmochemistry | 17 | 696 | 278 | 267 |
| 754 | Substance Abuse | 16 | 694 | 519 | 384 |
| 755 | anesthesia | 58 | 691 | 17 | 17 |
| 756 | Coastal zone management | 17 | 686 | 147 | 102 |
| 757 | health services accessibility | 21 | 683 | 232 | 184 |
| 757 | nuclear magnetic resonance | 53 | 683 | 170 | 271 |
| 757 | Cerebral cortex | 13 | 683 | 395 | 359 |
| 760 | Magnetic Resonance Spectroscopy | 46 | 677 | 207 | 292 |
| 760 | Algae | 32 | 677 | 137 | 227 |
| 760 | Capital market | 27 | 677 | 42 | 66 |
| 763 | Databases | 30 | 675 | 72 | 104 |
| 764 | Health Services Administration | 23 | 674 | 199 | 194 |
| 764 | Computational Fluid Dynamics | 29 | 674 | 88 | 118 |
| 766 | Drug targeting | 21 | 673 | 24 | 49 |
| 766 | eye | 9 | 673 | 64 | 140 |
| 768 | atmosphere | 41 | 672 | 71 | 168 |
| 768 | Sun | 30 | 672 | 75 | 110 |
| 770 | Nonlinear functional analysis | 55 | 670 | 69 | 186 |
| 770 | Evolutionary Computation | 18 | 670 | 87 | 186 |
| 772 | internet | 33 | 667 | 288 | 470 |
| 773 | Computational Chemistry | 13 | 666 | 233 | 198 |
| 773 | X-ray crystallography | 89 | 666 | 11 | 76 |
| 775 | biomedicine | 21 | 665 | 59 | 77 |
| 776 | Agricultural Ecology | 12 | 657 | 417 | 393 |
| 776 | Socioeconomic Factors | 28 | 657 | 106 | 155 |
| 776 | Ferroelectricity | 70 | 657 | 86 | 158 |
| 776 | Autism | 16 | 657 | 213 | 218 |
| 780 | Metallography | 32 | 656 | 122 | 166 |
| 781 | Groundwater | 22 | 654 | 110 | 114 |
| 782 | Continental shelf | 16 | 652 | 107 | 104 |
| 783 | analysis | 23 | 649 | 70 | 112 |
| 783 | Physical fitness | 19 | 649 | 292 | 303 |
| 785 | Embedded Systems | 33 | 647 | 4 | 20 |
| 786 | atmospheric models | 25 | 646 | 163 | 252 |
| 787 | Lipid metabolism | 12 | 645 | 108 | 98 |
| 787 | Lipid | 12 | 645 | 110 | 99 |
| 789 | Linguistics | 23 | 640 | 424 | 330 |
| 790 | fusion reactors | 97 | 638 | 32 | 54 |
| 791 | Multivariate Analysis | 36 | 637 | 42 | 110 |
| 791 | Electrophysiology | 32 | 637 | 179 | 204 |
| 793 | Women's health | 41 | 635 | 157 | 239 |
| 794 | Ethology | 28 | 626 | 441 | 670 |
| 795 | Mental Health | 37 | 624 | 297 | 402 |
| 796 | Retina | 6 | 621 | 85 | 143 |
| 797 | Archaeology | 41 | 619 | 285 | 336 |
| 798 | Asthma | 37 | 616 | 49 | 98 |
| 798 | Anxiety Disorders | 17 | 616 | 145 | 236 |
| 798 | Anxiety | 17 | 616 | 146 | 235 |
| 801 | consumer behavior | 10 | 613 | 206 | 173 |
| 802 | Communication in medicine | 28 | 611 | 93 | 126 |
| 802 | Consumer education | 12 | 611 | 65 | 72 |
| 804 | Multiphase Flow | 16 | 609 | 106 | 102 |
| 804 | Family | 32 | 609 | 200 | 258 |
| 806 | Forensic Genetics | 22 | 608 | 40 | 55 |
| 807 | Population Genetics | 16 | 607 | 459 | 489 |
| 808 | Community Psychiatry | 23 | 605 | 228 | 293 |
| 809 | Algebra | 69 | 602 | 175 | 213 |
| 810 | Advertising | 17 | 598 | 54 | 81 |
| 811 | Plate Tectonics | 27 | 597 | 25 | 38 |
| 812 | Animal ecology | 23 | 596 | 362 | 406 |
| 813 | Audiology | 29 | 593 | 173 | 216 |
| 814 | Interactive multimedia | 22 | 592 | 120 | 156 |
| 815 | Physical organic chemistry | 33 | 591 | 262 | 405 |
| 815 | Microfabrication | 17 | 591 | 62 | 48 |
| 817 | Geriatric Nursing | 28 | 590 | 46 | 23 |
| 817 | pharmaceutical industry | 32 | 590 | 37 | 61 |
| 819 | Nitric oxide | 12 | 588 | 32 | 25 |
| 820 | Investment analysis | 29 | 584 | 84 | 154 |
| 821 | Animal breeding | 32 | 581 | 170 | 206 |
| 822 | Nutrigenomics | 10 | 580 | 19 | 18 |
| 822 | livestock | 26 | 580 | 87 | 80 |
| 824 | Sustainable Development | 25 | 577 | 415 | 726 |
| 825 | Architectural Design | 53 | 575 | 11 | 52 |
| 825 | Organizational Behavior | 10 | 575 | 275 | 277 |
| 827 | Animal husbandry | 25 | 574 | 27 | 43 |
| 828 | multimedia | 21 | 571 | 120 | 156 |
| 829 | Occupational Health | 37 | 568 | 133 | 227 |
| 830 | Landscape Architecture | 34 | 567 | 6 | 4 |
| 831 | world | 12 | 566 | 267 | 304 |
| 832 | Measurement | 31 | 563 | 242 | 316 |
| 833 | Sports | 62 | 562 | 347 | 677 |
| 834 | risk factors | 34 | 560 | 95 | 213 |
| 835 | Political Science | 54 | 556 | 319 | 467 |
| 835 | Teaching | 38 | 556 | 332 | 489 |
| 837 | biofuels | 11 | 555 | 73 | 115 |
| 837 | older people | 140 | 555 | 108 | 343 |
| 839 | Pregnancy | 21 | 552 | 164 | 184 |
| 840 | Neuropharmacology | 64 | 550 | 8 | 157 |
| 841 | families | 28 | 547 | 180 | 202 |
| 841 | Psychiatric Epidemiology | 20 | 547 | 99 | 155 |
| 843 | Demography | 19 | 532 | 154 | 197 |
| 844 | Depression | 15 | 529 | 80 | 168 |
| 845 | Veterinary Immunology | 26 | 528 | 65 | 83 |
| 845 | Soil dynamics | 20 | 528 | 118 | 140 |
| 847 | environmental indicators | 17 | 526 | 322 | 444 |
| 847 | Recycling | 13 | 526 | 175 | 316 |
| 849 | Mental Health Services | 23 | 521 | 313 | 340 |
| 850 | locomotion | 21 | 518 | 119 | 182 |
| 850 | posture | 21 | 518 | 119 | 182 |
| 850 | gait | 21 | 518 | 119 | 182 |
| 850 | walking | 21 | 518 | 119 | 182 |
| 854 | Human Geography | 27 | 517 | 280 | 332 |
| 854 | Intelligent Control Systems | 24 | 517 | 184 | 126 |
| 854 | Cell cycle | 14 | 517 | 65 | 61 |
| 854 | cell proliferation | 14 | 517 | 71 | 63 |
| 854 | Aquaculture | 21 | 517 | 454 | 485 |
| 859 | Geomorphology | 15 | 514 | 592 | 633 |
| 860 | Research Design | 15 | 513 | 406 | 420 |
| 861 | Health promotion | 26 | 508 | 257 | 317 |
| 862 | Forensic Toxicology | 41 | 506 | 3 | 8 |
| 862 | Biometrics | 52 | 506 | 151 | 333 |
| 862 | Relationships | 3 | 506 | 158 | 45 |
| 865 | Tribology | 27 | 502 | 259 | 358 |
| 866 | Computer Engineering | 23 | 500 | 124 | 126 |
| 866 | preimplantation genetic diagnosis | 14 | 500 | 106 | 74 |
| 866 | embryo transfer | 14 | 500 | 113 | 78 |
| 866 | Finite Element Method | 20 | 500 | 37 | 38 |
| 870 | wood | 44 | 499 | 52 | 102 |
| 871 | dietary supplements | 37 | 492 | 49 | 221 |
| 872 | Yeast | 8 | 488 | 193 | 145 |
| 873 | Steroids | 17 | 485 | 308 | 308 |
| 873 | Zoonoses | 19 | 485 | 22 | 46 |
| 875 | Chemical industry | 50 | 482 | 149 | 281 |
| 876 | Internet of Things | 28 | 479 | 240 | 451 |
| 877 | Pacific Islands | 51 | 478 | 8 | 23 |
| 878 | research and development | 8 | 476 | 113 | 104 |
| 879 | Simulation Methods | 18 | 475 | 211 | 152 |
| 880 | Land use | 23 | 473 | 224 | 405 |
| 880 | Atomic spectroscopy | 40 | 473 | 171 | 352 |
| 880 | plant communities | 17 | 473 | 396 | 579 |
| 883 | Cerebellum | 34 | 471 | 15 | 99 |
| 883 | impact | 11 | 471 | 119 | 121 |
| 883 | Cerebellar ataxia | 34 | 471 | 15 | 99 |
| 886 | Cognitive Science | 17 | 468 | 526 | 641 |
| 887 | libraries | 7 | 465 | 301 | 92 |
| 888 | Software Engineering | 25 | 463 | 247 | 355 |
| 888 | Remote Sensing | 41 | 463 | 184 | 333 |
| 890 | Andrology | 30 | 462 | 69 | 154 |
| 891 | air quality | 19 | 460 | 6 | 16 |
| 892 | Flexible manufacturing systems | 21 | 456 | 32 | 79 |
| 893 | drug resistance | 32 | 454 | 49 | 195 |
| 894 | extraterrestrial environment | 26 | 451 | 90 | 103 |
| 894 | astronomical phenomena | 26 | 451 | 79 | 95 |
| 896 | adolescence | 15 | 446 | 342 | 395 |
| 896 | baking | 11 | 446 | 58 | 50 |
| 898 | Adolescent Psychology | 16 | 445 | 280 | 358 |
| 899 | particles | 28 | 443 | 139 | 230 |
| 899 | Radio frequency | 15 | 443 | 150 | 143 |
| 901 | Palliative Care | 26 | 442 | 170 | 216 |
| 901 | Reproductive toxicology | 12 | 442 | 104 | 117 |
| 903 | Cosmology | 18 | 440 | 182 | 240 |
| 903 | Mutagenesis | 19 | 440 | 48 | 60 |
| 905 | Medical Ethics | 18 | 438 | 370 | 252 |
| 906 | Industrial Policy | 15 | 436 | 126 | 165 |
| 907 | sleep-wake cycle | 8 | 431 | 29 | 6 |
| 908 | Population | 26 | 427 | 153 | 321 |
| 909 | Luminescence | 21 | 426 | 358 | 330 |
| 910 | Solitons | 35 | 425 | 131 | 359 |
| 910 | Fractals | 35 | 425 | 131 | 360 |
| 910 | Chaos | 35 | 425 | 131 | 359 |
| 910 | Bacteria | 12 | 425 | 88 | 181 |
| 914 | Housing | 21 | 424 | 80 | 152 |
| 915 | Biodegradation | 11 | 421 | 216 | 230 |
| 915 | teratogenic agents | 17 | 421 | 19 | 7 |
| 917 | Thorax | 15 | 417 | 133 | 172 |
| 918 | Seismology | 27 | 415 | 96 | 160 |
| 918 | venom | 14 | 415 | 211 | 211 |
| 918 | Toxins | 14 | 415 | 243 | 234 |
| 921 | eugenics | 13 | 414 | 160 | 138 |
| 922 | Global warming | 2 | 412 | 192 | 32 |
| 923 | Climate Change Mitigation | 1 | 411 | 94 | 31 |
| 923 | Nanophotonics | 26 | 411 | 30 | 104 |
| 923 | sea level | 1 | 411 | 94 | 31 |
| 926 | Bibliometrics | 3 | 405 | 132 | 44 |
| 927 | Aerospace Engineering | 67 | 404 | 9 | 29 |
| 928 | Evidence-Based Medicine | 14 | 403 | 203 | 169 |
| 929 | Logistics | 17 | 401 | 115 | 232 |
| 930 | Heart Failure | 9 | 400 | 172 | 197 |
| 930 | geological modeling | 21 | 400 | 72 | 135 |
| 930 | Gene library | 12 | 400 | 13 | 17 |
| 933 | air | 5 | 399 | 99 | 77 |
| 933 | psychotherapy | 9 | 399 | 670 | 547 |
| 935 | Enzyme inhibitors | 16 | 398 | 64 | 95 |
| 936 | Iron | 20 | 396 | 68 | 74 |
| 936 | rare diseases | 24 | 396 | 114 | 226 |
| 938 | Clinical Trials | 18 | 395 | 124 | 129 |
| 939 | Calculus of Variations | 33 | 393 | 59 | 111 |
| 939 | heredity | 30 | 393 | 80 | 184 |
| 941 | Chronobiology | 17 | 392 | 81 | 114 |
| 941 | biological clocks | 17 | 392 | 81 | 114 |
| 941 | circadian rhythm | 17 | 392 | 81 | 114 |
| 941 | biological rhythms | 17 | 392 | 73 | 112 |
| 945 | Geochemical Modeling | 20 | 391 | 61 | 119 |
| 946 | Urban Planning | 19 | 390 | 60 | 132 |
| 946 | Circadian rhythms | 16 | 390 | 54 | 105 |
| 948 | Thermodynamics | 35 | 388 | 178 | 263 |
| 949 | Bone diseases | 29 | 386 | 38 | 246 |
| 950 | Family Therapy | 19 | 385 | 218 | 227 |
| 950 | child mental health | 19 | 385 | 109 | 135 |
| 952 | community development | 23 | 382 | 88 | 144 |
| 952 | carbon monoxide | 9 | 382 | 104 | 125 |
| 954 | nuclear astrophysics | 10 | 381 | 231 | 218 |
| 955 | forest policy | 18 | 380 | 85 | 97 |
| 956 | Fermentation | 20 | 379 | 45 | 49 |
| 956 | Parallel Processing | 21 | 379 | 106 | 230 |
| 956 | civil service | 19 | 379 | 74 | 134 |
| 959 | Entropy | 22 | 375 | 197 | 212 |
| 959 | Human Resources | 14 | 375 | 106 | 211 |
| 961 | local government | 10 | 374 | 132 | 116 |
| 961 | health services | 27 | 374 | 200 | 342 |
| 961 | Menopause | 24 | 374 | 38 | 79 |
| 964 | soil conservation | 15 | 372 | 189 | 269 |
| 964 | Ore deposits | 18 | 372 | 153 | 218 |
| 966 | Materials Engineering | 26 | 371 | 73 | 103 |
| 966 | hazard mitigation | 19 | 371 | 167 | 317 |
| 968 | Psychometrics | 5 | 366 | 337 | 202 |
| 968 | Cheminformatics | 15 | 366 | 30 | 178 |
| 970 | counseling | 22 | 360 | 415 | 503 |
| 971 | Quantum Optics | 29 | 354 | 163 | 294 |
| 972 | Emergency Medical Services | 19 | 353 | 133 | 144 |
| 972 | sports administration | 19 | 353 | 34 | 73 |
| 972 | biochemical markers | 21 | 353 | 73 | 121 |
| 975 | Geobiology | 8 | 350 | 206 | 152 |
| 975 | Osteoporosis | 27 | 350 | 18 | 83 |
| 977 | Game Theory | 22 | 346 | 130 | 181 |
| 977 | transgenic organisms | 9 | 346 | 52 | 59 |
| 977 | transgenic animals | 9 | 346 | 47 | 55 |
| 980 | Water Microbiology | 11 | 344 | 100 | 121 |
| 981 | mammals | 26 | 341 | 210 | 350 |
| 982 | Organizational change | 17 | 340 | 134 | 262 |
| 982 | Laser Spectroscopy | 28 | 340 | 137 | 271 |
| 984 | Metallic Glasses | 15 | 338 | 138 | 174 |
| 985 | immigration | 2 | 336 | 262 | 78 |
| 985 | migration policy | 2 | 336 | 269 | 81 |
| 985 | Asylum seeker | 2 | 336 | 212 | 78 |
| 988 | Sites | 10 | 334 | 261 | 306 |
| 989 | peptides | 17 | 333 | 164 | 178 |
| 990 | Psycholinguistics | 13 | 332 | 411 | 505 |
| 990 | RNA | 11 | 332 | 207 | 290 |
| 990 | Speech | 20 | 332 | 266 | 455 |
| 993 | Psychoneuroimmunology | 9 | 330 | 287 | 382 |
| 993 | Neuroimmunology | 9 | 330 | 329 | 418 |
| 993 | water resources | 8 | 330 | 114 | 63 |
| 996 | Marine Geology | 14 | 329 | 194 | 232 |
| 996 | Bioethics | 10 | 329 | 460 | 267 |
| 996 | shipbuilding | 28 | 329 | 5 | 5 |
| 999 | Conservation Biology | 13 | 328 | 436 | 554 |
| 1000 | Biogeography | 9 | 326 | 539 | 661 |