| 1 | Physics | 3,571 | 245.5K | 81 | 119 |
| 2 | Science | 1,531 | 189.8K | 183 | 134 |
| 3 | Biology | 1,421 | 162.8K | 198 | 157 |
| 4 | Astrophysics | 1,145 | 127.8K | 133 | 80 |
| 5 | Chemistry | 1,907 | 104.6K | 191 | 217 |
| 6 | Astronomy | 1,165 | 90.5K | 103 | 90 |
| 7 | Natural history | 329 | 88.5K | 152 | 137 |
| 8 | Condensed Matter | 1,296 | 84.2K | 45 | 29 |
| 9 | Spectrum analysis | 805 | 83.4K | 101 | 53 |
| 10 | Medicine | 1,100 | 82.1K | 271 | 174 |
| 11 | Neurology | 935 | 79.4K | 165 | 118 |
| 12 | Molecular Biology | 1,017 | 73.7K | 224 | 182 |
| 13 | Biochemistry | 1,424 | 67.9K | 259 | 218 |
| 14 | Nuclear Physics | 1,546 | 66.2K | 123 | 108 |
| 15 | Solid State Physics | 1,295 | 57.3K | 54 | 48 |
| 16 | Geophysics | 774 | 46.8K | 94 | 60 |
| 17 | Research | 935 | 46.2K | 233 | 169 |
| 18 | Mathematics | 2,168 | 44.6K | 15 | 12 |
| 19 | Statistical physics | 1,175 | 43.8K | 26 | 28 |
| 20 | Ecology | 506 | 41.6K | 281 | 196 |
| 21 | Microbiology | 533 | 40.9K | 290 | 218 |
| 22 | Electrochemistry | 1,027 | 37.1K | 33 | 14 |
| 23 | Cytology | 621 | 36.3K | 137 | 179 |
| 24 | Catalysis | 808 | 35.4K | 53 | 72 |
| 25 | Materials | 517 | 34.5K | 331 | 212 |
| 26 | Cell Biology | 481 | 33.0K | 158 | 182 |
| 27 | Mathematical Physics | 698 | 30.9K | 20 | 17 |
| 28 | Human genetics | 137 | 30.6K | 204 | 176 |
| 29 | Oceanography | 320 | 29.3K | 48 | 18 |
| 30 | Quantum Gravity | 454 | 29.3K | 133 | 80 |
| 31 | Neurophysiology | 332 | 28.7K | 145 | 109 |
| 32 | Geology | 472 | 28.6K | 90 | 61 |
| 33 | Genetics | 314 | 28.3K | 179 | 147 |
| 34 | Medical genetics | 235 | 23.5K | 167 | 107 |
| 35 | Polymers | 664 | 23.3K | 137 | 129 |
| 36 | Surface Chemistry | 681 | 22.6K | 34 | 60 |
| 37 | Meteorology | 309 | 22.0K | 90 | 69 |
| 38 | Biophysics | 465 | 20.5K | 286 | 220 |
| 39 | Earth Sciences | 264 | 20.1K | 97 | 55 |
| 40 | Statistical Mechanics | 103 | 19.7K | 29 | 3 |
| 41 | Materials Science | 324 | 19.6K | 269 | 189 |
| 42 | Geochemistry | 313 | 19.3K | 71 | 53 |
| 43 | Hematology | 300 | 19.0K | 172 | 127 |
| 44 | Colloids | 434 | 18.9K | 113 | 93 |
| 45 | Marine Biology | 258 | 18.8K | 87 | 36 |
| 46 | Developmental Biology | 350 | 17.6K | 63 | 89 |
| 47 | Nonlinear Dynamics | 475 | 16.9K | 22 | 28 |
| 48 | Botany | 367 | 16.7K | 199 | 218 |
| 49 | Nanotechnology | 257 | 16.6K | 417 | 320 |
| 50 | Immunity | 59 | 16.0K | 299 | 134 |
| 51 | polymerization | 511 | 15.3K | 128 | 150 |
| 52 | Endocrinology | 245 | 15.3K | 203 | 187 |
| 53 | Psychiatry | 249 | 15.1K | 273 | 230 |
| 54 | Planets | 221 | 14.7K | 107 | 70 |
| 55 | Climatology | 191 | 14.3K | 84 | 58 |
| 56 | Evolution | 248 | 14.1K | 50 | 85 |
| 57 | Allergy | 75 | 14.1K | 113 | 66 |
| 58 | Optics | 493 | 14.1K | 191 | 137 |
| 59 | Environment | 135 | 13.8K | 571 | 404 |
| 60 | Critical Care | 177 | 13.7K | 71 | 69 |
| 60 | Critical Care Medicine | 177 | 13.7K | 71 | 69 |
| 62 | Metabolism | 152 | 13.4K | 252 | 169 |
| 63 | probabilities | 484 | 13.4K | 1 | 2 |
| 64 | Biogeochemistry | 198 | 13.4K | 13 | 14 |
| 65 | Radiation | 152 | 13.2K | 49 | 9 |
| 66 | Geodynamics | 183 | 13.1K | 12 | 4 |
| 67 | Metabolic diseases | 146 | 13.1K | 186 | 147 |
| 68 | Microbial Ecology | 124 | 13.1K | 167 | 116 |
| 69 | Brain | 220 | 12.8K | 187 | 155 |
| 70 | radiative transfer | 130 | 12.6K | 8 | 5 |
| 71 | Electronics | 232 | 12.5K | 201 | 111 |
| 72 | Public Health | 247 | 12.4K | 352 | 266 |
| 73 | Virology | 148 | 12.2K | 278 | 272 |
| 74 | biological evolution | 159 | 12.0K | 133 | 142 |
| 75 | Pharmacology | 167 | 11.6K | 620 | 348 |
| 76 | Immunology | 214 | 11.5K | 260 | 264 |
| 77 | atmospheric models | 22 | 11.5K | 178 | 15 |
| 78 | Pollution | 134 | 11.4K | 636 | 434 |
| 79 | Nervous system | 150 | 10.9K | 176 | 133 |
| 80 | genome | 34 | 10.7K | 292 | 88 |
| 81 | Mechanics | 184 | 10.6K | 9 | 4 |
| 82 | Functional Analysis | 249 | 10.4K | 2 | 2 |
| 83 | Computational Biology | 91 | 10.4K | 241 | 111 |
| 84 | Meteorites | 124 | 10.0K | 77 | 70 |
| 85 | Neurochemistry | 177 | 9.8K | 165 | 125 |
| 86 | Biocompatible Materials | 131 | 9.4K | 464 | 363 |
| 87 | Physiology | 208 | 9.4K | 356 | 315 |
| 88 | Embryology | 191 | 9.1K | 76 | 106 |
| 89 | Biodiversity | 132 | 9.1K | 96 | 75 |
| 90 | Animal Behavior | 142 | 9.1K | 181 | 142 |
| 91 | Liver diseases | 67 | 9.0K | 189 | 115 |
| 92 | Alzheimer's disease | 83 | 8.9K | 167 | 48 |
| 93 | Environmental Health | 121 | 8.8K | 621 | 404 |
| 94 | Neurobiology | 151 | 8.7K | 112 | 136 |
| 95 | Molecules | 376 | 8.7K | 5 | 20 |
| 96 | Biotechnology | 150 | 8.7K | 646 | 553 |
| 97 | Cell differentiation | 142 | 8.6K | 106 | 161 |
| 98 | Solid State Chemistry | 349 | 8.5K | 25 | 36 |
| 99 | analysis | 65 | 8.4K | 20 | 4 |
| 100 | Epidemiology | 230 | 8.4K | 203 | 213 |
| 101 | Surgery | 27 | 8.3K | 425 | 170 |
| 102 | Mental Disorders | 137 | 8.2K | 237 | 222 |
| 103 | Water | 129 | 8.2K | 189 | 180 |
| 104 | Anatomy | 152 | 8.1K | 119 | 108 |
| 105 | Atmospheric Physics | 148 | 8.0K | 131 | 123 |
| 106 | mathematical analysis | 187 | 8.0K | 98 | 5 |
| 107 | soil microbiology | 39 | 7.7K | 280 | 82 |
| 108 | Physical Chemistry | 156 | 7.7K | 121 | 111 |
| 109 | Ethology | 120 | 7.7K | 135 | 121 |
| 110 | Bioinformatics | 37 | 7.7K | 428 | 124 |
| 111 | Cytogenetics | 73 | 7.7K | 140 | 108 |
| 112 | Dementia | 76 | 7.6K | 167 | 50 |
| 113 | nucleic acids | 82 | 7.6K | 211 | 185 |
| 114 | Pathology | 90 | 7.5K | 281 | 159 |
| 115 | Raman spectroscopy | 137 | 7.5K | 3 | 2 |
| 116 | Bacteriology | 93 | 7.5K | 203 | 152 |
| 117 | Plant cells | 56 | 7.3K | 198 | 168 |
| 118 | Nanostructured Materials | 188 | 7.2K | 220 | 242 |
| 119 | Cancer | 99 | 7.1K | 446 | 344 |
| 120 | Numerical Analysis | 142 | 7.1K | 83 | 20 |
| 121 | Diabetes | 94 | 7.1K | 232 | 182 |
| 122 | Molecular Spectroscopy | 209 | 7.0K | 14 | 13 |
| 123 | plant molecular biology | 60 | 7.0K | 222 | 152 |
| 124 | Immunotherapy | 78 | 7.0K | 165 | 114 |
| 125 | arthritis | 97 | 6.9K | 105 | 87 |
| 126 | Growth | 130 | 6.7K | 77 | 130 |
| 127 | Psychophysiology | 119 | 6.6K | 369 | 314 |
| 128 | Animal ecology | 104 | 6.6K | 71 | 41 |
| 129 | Fluid Mechanics | 72 | 6.6K | 162 | 38 |
| 130 | Diabetes mellitus | 93 | 6.4K | 203 | 185 |
| 131 | Soil biology | 56 | 6.1K | 96 | 64 |
| 132 | Zoology | 157 | 6.1K | 151 | 90 |
| 133 | Bioengineering | 87 | 6.0K | 611 | 468 |
| 134 | Neurons | 42 | 6.0K | 99 | 137 |
| 135 | Pediatric Neurology | 50 | 6.0K | 138 | 108 |
| 136 | Artificial Intelligence | 74 | 6.0K | 605 | 267 |
| 137 | Rheumatology | 54 | 5.9K | 140 | 64 |
| 138 | Water pollution | 78 | 5.8K | 366 | 214 |
| 139 | Paleoecology | 91 | 5.6K | 47 | 23 |
| 140 | Medical Microbiology | 118 | 5.6K | 180 | 219 |
| 141 | Paleoclimatology | 87 | 5.6K | 66 | 34 |
| 142 | Biogeochemical cycles | 47 | 5.6K | 32 | 25 |
| 143 | Genomics | 121 | 5.5K | 261 | 220 |
| 144 | Atmospheric Chemistry | 96 | 5.4K | 107 | 127 |
| 145 | Electrochemical Analysis | 216 | 5.3K | 16 | 37 |
| 146 | Paleogeography | 84 | 5.3K | 35 | 19 |
| 147 | Plants | 43 | 5.3K | 390 | 206 |
| 148 | Molecular evolution | 74 | 5.3K | 111 | 111 |
| 149 | Mental illness | 85 | 5.3K | 202 | 193 |
| 150 | nanoscience | 68 | 5.3K | 488 | 341 |
| 151 | Plant physiology | 117 | 5.3K | 174 | 208 |
| 152 | Molecular Genetics | 92 | 5.2K | 167 | 166 |
| 153 | Environmental Microbiology | 46 | 5.1K | 156 | 81 |
| 154 | Solar System | 102 | 5.1K | 65 | 59 |
| 155 | Hydrology | 70 | 5.1K | 315 | 173 |
| 155 | Soft Condensed Matter | 99 | 5.1K | 70 | 32 |
| 157 | Cognitive Science | 14 | 5.1K | 613 | 102 |
| 158 | Leukemia | 67 | 5.1K | 119 | 103 |
| 159 | Plant diseases | 28 | 5.0K | 546 | 98 |
| 160 | Molecular structure | 136 | 4.9K | 90 | 143 |
| 161 | Behavior | 88 | 4.9K | 454 | 409 |
| 162 | Pharmaceutical Chemistry | 86 | 4.9K | 557 | 370 |
| 163 | miniaturization | 64 | 4.9K | 242 | 216 |
| 164 | Paleontology | 169 | 4.9K | 39 | 34 |
| 165 | infection | 95 | 4.8K | 95 | 73 |
| 166 | Diagnostic microbiology | 72 | 4.8K | 88 | 124 |
| 167 | Engineering | 149 | 4.6K | 302 | 212 |
| 168 | Fracture mechanics | 62 | 4.6K | 184 | 53 |
| 169 | Biodiversity conservation | 22 | 4.5K | 499 | 284 |
| 170 | Infections | 80 | 4.4K | 63 | 58 |
| 171 | Computer Science | 14 | 4.4K | 845 | 19 |
| 172 | Light | 37 | 4.2K | 138 | 120 |
| 173 | Mineralogy | 72 | 4.2K | 201 | 127 |
| 174 | Parasitic Diseases | 94 | 4.2K | 113 | 101 |
| 175 | human behavior | 56 | 4.1K | 432 | 371 |
| 176 | Petrology | 60 | 4.1K | 177 | 109 |
| 177 | Climate change | 15 | 4.1K | 381 | 245 |
| 177 | Eutrophication | 15 | 4.1K | 374 | 244 |
| 179 | Soil ecology | 36 | 4.1K | 87 | 21 |
| 180 | Urology | 73 | 4.0K | 225 | 135 |
| 181 | Semiconductors | 122 | 4.0K | 115 | 45 |
| 182 | Biomedical Engineering | 96 | 4.0K | 742 | 598 |
| 183 | Zeolites | 108 | 3.9K | 9 | 15 |
| 184 | Toxicology | 72 | 3.9K | 814 | 584 |
| 185 | Therapeutics | 30 | 3.9K | 396 | 146 |
| 186 | Mechanical Engineering | 22 | 3.9K | 878 | 89 |
| 187 | environmental pollution | 69 | 3.8K | 774 | 630 |
| 188 | Organic Chemistry | 128 | 3.8K | 322 | 348 |
| 189 | Environmental Engineering | 43 | 3.8K | 808 | 455 |
| 190 | biopolymers | 59 | 3.8K | 152 | 61 |
| 191 | Photonics | 25 | 3.8K | 637 | 250 |
| 192 | Analytical Chemistry | 139 | 3.7K | 571 | 658 |
| 193 | Autoimmunity | 55 | 3.6K | 52 | 41 |
| 194 | Histology | 82 | 3.6K | 191 | 175 |
| 195 | Cardiovascular system | 28 | 3.6K | 388 | 292 |
| 196 | Statistics | 170 | 3.5K | 191 | 240 |
| 197 | cell physiology | 50 | 3.5K | 224 | 192 |
| 198 | Host-parasite interactions | 26 | 3.5K | 286 | 194 |
| 199 | Psychology | 80 | 3.5K | 842 | 626 |
| 200 | Virulence | 27 | 3.5K | 282 | 168 |
| 201 | United Kingdom | 65 | 3.4K | 199 | 162 |
| 202 | Microelectronics | 40 | 3.4K | 384 | 249 |
| 203 | Algae | 61 | 3.4K | 48 | 30 |
| 204 | ecosystem | 41 | 3.4K | 207 | 131 |
| 205 | Population Genetics | 46 | 3.3K | 193 | 153 |
| 206 | Hypertension | 29 | 3.3K | 409 | 287 |
| 207 | Atomic spectroscopy | 73 | 3.3K | 57 | 24 |
| 208 | Obesity | 40 | 3.3K | 410 | 248 |
| 209 | Reproduction | 90 | 3.2K | 269 | 242 |
| 210 | Soil Science | 42 | 3.2K | 324 | 170 |
| 211 | Obstetrics | 59 | 3.2K | 393 | 221 |
| 212 | Neuropsychology | 91 | 3.2K | 271 | 279 |
| 213 | Oncogenes | 34 | 3.2K | 234 | 201 |
| 214 | drug therapy | 53 | 3.2K | 403 | 227 |
| 215 | Molecular ecology | 47 | 3.2K | 161 | 158 |
| 216 | Quantum Optics | 57 | 3.2K | 54 | 20 |
| 217 | Nutrition | 56 | 3.1K | 813 | 593 |
| 218 | Nonlinear functional analysis | 52 | 3.1K | 77 | 7 |
| 219 | Transplantation | 42 | 3.1K | 194 | 137 |
| 220 | sanitation | 22 | 3.1K | 472 | 313 |
| 221 | Health Policy | 50 | 3.1K | 379 | 192 |
| 222 | Chemical Oceanography | 60 | 3.1K | 18 | 23 |
| 223 | Cosmochemistry | 66 | 3.0K | 45 | 50 |
| 224 | Composite Materials | 59 | 3.0K | 514 | 440 |
| 225 | Aging | 62 | 3.0K | 449 | 333 |
| 226 | viruses | 57 | 3.0K | 231 | 238 |
| 227 | Membranes | 78 | 3.0K | 226 | 271 |
| 228 | Technology | 79 | 2.9K | 573 | 450 |
| 229 | Operations Research | 83 | 2.9K | 256 | 234 |
| 230 | Cerebral cortex | 44 | 2.9K | 143 | 127 |
| 231 | Psychopharmacology | 53 | 2.8K | 239 | 242 |
| 232 | Protozoa | 38 | 2.8K | 29 | 21 |
| 233 | Europe | 119 | 2.8K | 284 | 290 |
| 234 | Oncology | 33 | 2.8K | 463 | 526 |
| 235 | Genetic engineering | 52 | 2.7K | 291 | 252 |
| 236 | Laser Spectroscopy | 44 | 2.7K | 70 | 21 |
| 237 | Health | 26 | 2.7K | 569 | 204 |
| 238 | Optical materials | 47 | 2.6K | 584 | 465 |
| 239 | Pediatrics | 44 | 2.6K | 457 | 373 |
| 240 | Organic Geochemistry | 54 | 2.6K | 21 | 37 |
| 241 | Social behavior | 40 | 2.6K | 202 | 150 |
| 242 | Electron Microscopy | 122 | 2.6K | 3 | 3 |
| 243 | Quantum theory | 105 | 2.6K | 34 | 46 |
| 244 | computer networks | 54 | 2.6K | 392 | 232 |
| 245 | Dynamics | 107 | 2.6K | 45 | 51 |
| 246 | Chemical Engineering | 67 | 2.5K | 1036 | 1038 |
| 246 | Ophthalmology | 53 | 2.5K | 345 | 259 |
| 248 | Vaccines | 58 | 2.5K | 211 | 171 |
| 249 | Bioinorganic chemistry | 82 | 2.5K | 109 | 92 |
| 250 | Genetic regulation | 31 | 2.5K | 184 | 173 |
| 251 | elasticity | 37 | 2.5K | 10 | 6 |
| 252 | Clinical Chemistry | 50 | 2.4K | 538 | 441 |
| 253 | gene therapy | 37 | 2.4K | 162 | 128 |
| 254 | Organometallic chemistry | 69 | 2.4K | 175 | 60 |
| 255 | Stochastic Processes | 100 | 2.4K | 5 | 9 |
| 256 | Respiration | 64 | 2.3K | 187 | 199 |
| 257 | Engineering Mathematics | 67 | 2.3K | 189 | 119 |
| 258 | water supply | 27 | 2.3K | 215 | 145 |
| 258 | rare diseases | 31 | 2.3K | 84 | 26 |
| 260 | Mass Spectrometry | 113 | 2.3K | 29 | 94 |
| 261 | Catalysts | 59 | 2.3K | 20 | 21 |
| 262 | Ocean Engineering | 42 | 2.2K | 380 | 236 |
| 263 | Diet | 32 | 2.2K | 458 | 377 |
| 264 | Glass | 40 | 2.2K | 175 | 116 |
| 265 | Cognitive neuroscience | 26 | 2.1K | 277 | 239 |
| 266 | Medical innovations | 21 | 2.1K | 222 | 199 |
| 267 | Seaweed | 35 | 2.1K | 69 | 39 |
| 268 | Plastics | 43 | 2.1K | 250 | 116 |
| 269 | Ceramic materials | 68 | 2.1K | 97 | 102 |
| 270 | Marine Meteorology | 46 | 2.1K | 56 | 50 |
| 271 | Africa | 14 | 2.1K | 573 | 46 |
| 272 | Molecular Microbiology | 32 | 2.1K | 194 | 207 |
| 272 | Bacteria | 16 | 2.1K | 66 | 33 |
| 274 | Ceramics | 61 | 2.1K | 149 | 138 |
| 275 | Middle East | 12 | 2.1K | 386 | 13 |
| 276 | Random graphs | 16 | 2.1K | 38 | 5 |
| 277 | Diagnostic Imaging | 26 | 2.1K | 483 | 250 |
| 278 | pottery | 37 | 2.0K | 186 | 123 |
| 279 | Sound | 50 | 2.0K | 120 | 83 |
| 280 | Marine Pollution | 28 | 2.0K | 259 | 131 |
| 281 | Bone diseases | 8 | 1.9K | 207 | 62 |
| 282 | Stem cells | 31 | 1.9K | 331 | 254 |
| 283 | Archaeology | 26 | 1.9K | 394 | 142 |
| 284 | Differential Equations | 55 | 1.9K | 101 | 57 |
| 285 | Medical Physics | 23 | 1.9K | 512 | 315 |
| 286 | Autism | 26 | 1.9K | 139 | 104 |
| 287 | Robotics | 40 | 1.9K | 335 | 222 |
| 288 | Schizophrenia | 51 | 1.8K | 146 | 180 |
| 289 | proteins | 66 | 1.8K | 244 | 308 |
| 290 | Ultrasonics | 77 | 1.8K | 62 | 122 |
| 291 | Probability | 49 | 1.8K | 33 | 44 |
| 292 | Cosmology | 15 | 1.8K | 216 | 62 |
| 293 | Radio | 45 | 1.8K | 298 | 292 |
| 294 | Sleep | 44 | 1.8K | 288 | 217 |
| 295 | Signal Transduction | 24 | 1.8K | 375 | 285 |
| 296 | Sites | 17 | 1.8K | 167 | 75 |
| 296 | Cell death | 25 | 1.8K | 316 | 281 |
| 298 | Sleep Disorders | 45 | 1.8K | 280 | 221 |
| 299 | drug development | 15 | 1.8K | 282 | 197 |
| 300 | Lipids | 37 | 1.7K | 203 | 204 |
| 301 | gene mapping | 36 | 1.7K | 390 | 381 |
| 302 | Cognition | 37 | 1.7K | 438 | 372 |
| 303 | Computational Chemistry | 15 | 1.7K | 196 | 100 |
| 304 | Combinatorial analysis | 106 | 1.7K | 49 | 48 |
| 305 | Neurosurgery | 26 | 1.6K | 224 | 135 |
| 306 | Bioorganic chemistry | 47 | 1.6K | 623 | 582 |
| 307 | plasticity | 23 | 1.6K | 69 | 63 |
| 307 | Microscopy | 98 | 1.6K | 36 | 120 |
| 309 | Educational Psychology | 42 | 1.6K | 301 | 285 |
| 310 | Hormones | 57 | 1.6K | 150 | 220 |
| 311 | Ultrasound | 57 | 1.6K | 60 | 64 |
| 312 | Signal Processing | 32 | 1.6K | 762 | 564 |
| 313 | Psychoneuroimmunology | 18 | 1.6K | 144 | 109 |
| 313 | Neuroimmunology | 18 | 1.6K | 180 | 121 |
| 315 | Astrocytes | 17 | 1.6K | 110 | 73 |
| 316 | Gene expression regulation | 22 | 1.6K | 208 | 164 |
| 317 | Telecommunication | 67 | 1.6K | 402 | 504 |
| 318 | Minerals | 41 | 1.6K | 43 | 33 |
| 319 | diseases | 3 | 1.5K | 289 | 225 |
| 319 | Disease | 3 | 1.5K | 308 | 226 |
| 321 | Medical Laboratory Science | 28 | 1.5K | 520 | 463 |
| 321 | nuclear astrophysics | 11 | 1.5K | 217 | 56 |
| 323 | free radicals | 28 | 1.5K | 307 | 331 |
| 324 | Public Policy | 27 | 1.5K | 431 | 268 |
| 325 | Environmental monitoring | 41 | 1.5K | 891 | 974 |
| 326 | Antiviral agents | 45 | 1.5K | 10 | 6 |
| 327 | Kidney diseases | 23 | 1.5K | 195 | 120 |
| 328 | Photochemistry | 43 | 1.5K | 237 | 210 |
| 329 | Mesoporous materials | 31 | 1.5K | 4 | 5 |
| 330 | Parasitology | 62 | 1.5K | 311 | 337 |
| 330 | Crystal growth | 13 | 1.5K | 401 | 91 |
| 332 | Bioenergetics | 38 | 1.4K | 114 | 142 |
| 333 | Thin Films | 37 | 1.4K | 30 | 13 |
| 334 | Hydrogeology | 16 | 1.4K | 158 | 37 |
| 335 | Environmental Policy | 18 | 1.4K | 1214 | 833 |
| 336 | Magnetic Resonance Spectroscopy | 58 | 1.4K | 165 | 171 |
| 337 | Image Processing | 40 | 1.4K | 499 | 492 |
| 337 | Chromosome mapping | 29 | 1.4K | 406 | 364 |
| 339 | Histochemistry | 19 | 1.4K | 314 | 99 |
| 340 | Recombinant DNA | 37 | 1.4K | 233 | 205 |
| 341 | Geometry | 103 | 1.4K | 47 | 54 |
| 342 | health services accessibility | 17 | 1.4K | 259 | 96 |
| 343 | Combinatorial chemistry | 23 | 1.4K | 148 | 147 |
| 344 | Information Theory | 32 | 1.3K | 315 | 252 |
| 345 | Molecular cloning | 35 | 1.3K | 221 | 187 |
| 345 | Genetic recombination | 35 | 1.3K | 213 | 183 |
| 347 | Geography | 26 | 1.3K | 621 | 426 |
| 347 | System analysis | 37 | 1.3K | 517 | 385 |
| 349 | Nephrology | 18 | 1.3K | 141 | 107 |
| 350 | fertility | 21 | 1.3K | 283 | 241 |
| 351 | cell membrane | 32 | 1.3K | 109 | 126 |
| 352 | clay | 29 | 1.3K | 97 | 96 |
| 353 | Simulation Methods | 40 | 1.3K | 39 | 19 |
| 354 | Developmental Genetics | 18 | 1.3K | 136 | 171 |
| 355 | Ferroelectricity | 55 | 1.3K | 117 | 77 |
| 356 | Infertility | 19 | 1.3K | 279 | 227 |
| 356 | cloning | 13 | 1.3K | 198 | 143 |
| 358 | Energy metabolism | 32 | 1.3K | 119 | 147 |
| 359 | mass transfer | 39 | 1.3K | 373 | 382 |
| 360 | Insects | 33 | 1.3K | 271 | 193 |
| 361 | Automation | 25 | 1.3K | 753 | 611 |
| 362 | Thrombosis | 33 | 1.3K | 216 | 223 |
| 363 | Biometrics | 44 | 1.3K | 190 | 180 |
| 364 | Genetic therapy | 29 | 1.3K | 223 | 211 |
| 365 | atmosphere | 25 | 1.2K | 129 | 74 |
| 366 | Hydraulic Engineering | 27 | 1.2K | 225 | 159 |
| 367 | Homeostasis | 7 | 1.2K | 211 | 272 |
| 367 | Cell metabolism | 7 | 1.2K | 338 | 281 |
| 369 | Surface properties | 28 | 1.2K | 176 | 164 |
| 370 | Clinical Immunology | 51 | 1.2K | 146 | 199 |
| 371 | Hydrodynamics | 19 | 1.2K | 173 | 102 |
| 372 | Genes | 38 | 1.2K | 136 | 129 |
| 373 | Calculus of Variations | 38 | 1.2K | 43 | 19 |
| 374 | Surface-Active Agents | 25 | 1.2K | 183 | 156 |
| 375 | Yeast | 21 | 1.2K | 62 | 46 |
| 376 | Metals | 59 | 1.2K | 327 | 496 |
| 377 | preventive medicine | 27 | 1.2K | 275 | 261 |
| 378 | Geriatrics | 47 | 1.1K | 574 | 586 |
| 379 | Sedimentary rocks | 23 | 1.1K | 94 | 69 |
| 380 | Control Theory | 41 | 1.1K | 383 | 331 |
| 381 | Biochemical Engineering | 16 | 1.1K | 1446 | 1270 |
| 382 | Natural resources | 7 | 1.1K | 436 | 142 |
| 383 | Proteome | 20 | 1.1K | 320 | 277 |
| 384 | Petroleum Geology | 20 | 1.1K | 122 | 70 |
| 385 | Plasma chemistry | 33 | 1.1K | 36 | 36 |
| 386 | Wildlife conservation | 17 | 1.1K | 372 | 315 |
| 387 | pain | 19 | 1.1K | 433 | 342 |
| 388 | Dermatology | 28 | 1.1K | 474 | 361 |
| 389 | Materials Engineering | 9 | 1.1K | 268 | 12 |
| 390 | Radio frequency | 31 | 1.1K | 80 | 65 |
| 391 | Entomology | 28 | 1.1K | 649 | 394 |
| 392 | Metallurgy | 59 | 1.0K | 384 | 546 |
| 393 | viral genetics | 6 | 1.0K | 164 | 152 |
| 394 | Immunopathology | 25 | 1.0K | 347 | 306 |
| 395 | Environmental Toxicology | 13 | 1.0K | 1070 | 664 |
| 396 | Child | 32 | 1.0K | 597 | 505 |
| 397 | Medical Oncology | 22 | 1.0K | 493 | 449 |
| 398 | Nuclear Medicine | 12 | 1.0K | 386 | 205 |
| 399 | Algebra | 73 | 1.0K | 162 | 131 |
| 400 | Environmental Chemistry | 26 | 1.0K | 489 | 668 |
| 401 | Carbon | 17 | 992 | 447 | 452 |
| 401 | Immune system | 20 | 992 | 259 | 406 |
| 403 | Vision | 16 | 976 | 252 | 189 |
| 404 | Speech Perception | 15 | 967 | 102 | 72 |
| 404 | auditory perception | 15 | 967 | 119 | 82 |
| 406 | concrete | 21 | 966 | 267 | 322 |
| 407 | Microwaves | 26 | 965 | 433 | 262 |
| 408 | drug resistance | 10 | 963 | 234 | 81 |
| 409 | Perception | 39 | 954 | 412 | 471 |
| 410 | Child Development | 21 | 944 | 646 | 551 |
| 411 | Microorganisms | 13 | 937 | 384 | 315 |
| 412 | Marine Geology | 14 | 936 | 194 | 86 |
| 412 | Phylogeny | 11 | 936 | 377 | 213 |
| 412 | Insect biochemistry | 28 | 936 | 54 | 80 |
| 415 | Cement | 19 | 931 | 153 | 214 |
| 416 | Sociology | 13 | 929 | 1374 | 707 |
| 417 | Nanoparticles | 30 | 928 | 442 | 499 |
| 418 | Plant genetic engineering | 25 | 927 | 187 | 230 |
| 419 | Biogeography | 15 | 925 | 392 | 356 |
| 420 | Agriculture | 15 | 922 | 791 | 475 |
| 421 | Economics | 14 | 919 | 2001 | 1091 |
| 422 | Geomorphology | 22 | 917 | 452 | 429 |
| 423 | nuclear magnetic resonance | 40 | 916 | 222 | 218 |
| 424 | Fluid Dynamics | 30 | 915 | 259 | 231 |
| 425 | Flow cytometry | 7 | 913 | 171 | 31 |
| 426 | lasers | 32 | 908 | 561 | 426 |
| 427 | Bipolar Disorder | 26 | 900 | 56 | 88 |
| 428 | Solar Energy | 22 | 898 | 472 | 474 |
| 429 | clay minerals | 17 | 891 | 53 | 39 |
| 430 | Analytical Biochemistry | 23 | 887 | 440 | 371 |
| 431 | Molecular Imaging | 10 | 878 | 279 | 173 |
| 432 | Chronic diseases | 11 | 877 | 279 | 232 |
| 433 | Birds | 25 | 876 | 321 | 203 |
| 434 | Biosensors | 14 | 871 | 522 | 473 |
| 435 | Green Chemistry | 15 | 870 | 733 | 666 |
| 435 | Medical Anthropology | 12 | 870 | 515 | 382 |
| 437 | Graph Theory | 47 | 869 | 71 | 52 |
| 437 | Plasma polymerization | 26 | 869 | 22 | 28 |
| 439 | Ornithology | 23 | 867 | 269 | 152 |
| 440 | Cardiovascular diseases | 16 | 857 | 589 | 395 |
| 440 | plankton | 13 | 857 | 34 | 7 |
| 442 | Antioxidants | 10 | 856 | 337 | 264 |
| 443 | Catalyst | 5 | 855 | 10 | 11 |
| 444 | Plant Genetics | 19 | 850 | 183 | 249 |
| 445 | Agricultural Ecology | 12 | 844 | 415 | 325 |
| 446 | Bioelectronics | 12 | 830 | 466 | 431 |
| 447 | solar cells | 17 | 829 | 232 | 229 |
| 448 | Conservation Biology | 13 | 828 | 435 | 317 |
| 449 | Steroids | 32 | 819 | 174 | 204 |
| 450 | histological techniques | 15 | 818 | 223 | 196 |
| 451 | Proteomics | 13 | 811 | 415 | 280 |
| 452 | Organometallic compounds | 23 | 805 | 399 | 324 |
| 453 | Emergency Medicine | 36 | 804 | 264 | 233 |
| 454 | Clinical Pharmacology | 27 | 800 | 296 | 289 |
| 455 | Oxidation-reduction | 7 | 799 | 470 | 348 |
| 456 | Memory | 42 | 797 | 373 | 538 |
| 457 | Bacterial infections | 16 | 796 | 211 | 304 |
| 458 | Cytoskeleton | 15 | 792 | 64 | 41 |
| 458 | Autoimmune diseases | 18 | 792 | 146 | 131 |
| 460 | Population | 12 | 791 | 345 | 188 |
| 461 | Food | 18 | 787 | 1227 | 1056 |
| 462 | nuclear magnetic resonance spectroscopy | 37 | 785 | 87 | 122 |
| 463 | Computer-Aided Design | 21 | 782 | 332 | 237 |
| 463 | Autoantibodies | 17 | 782 | 130 | 121 |
| 465 | disease outbreaks | 28 | 781 | 70 | 117 |
| 465 | Epidemics | 28 | 781 | 66 | 117 |
| 467 | Combustion | 26 | 778 | 337 | 335 |
| 468 | Cerebellum | 11 | 774 | 79 | 63 |
| 468 | Cerebellar ataxia | 11 | 774 | 79 | 63 |
| 470 | Plant Ecology | 28 | 771 | 500 | 648 |
| 471 | Computational Fluid Dynamics | 19 | 769 | 153 | 97 |
| 472 | Environmental pollutants | 13 | 768 | 978 | 681 |
| 473 | Parasites | 30 | 766 | 323 | 335 |
| 474 | Matroids | 31 | 762 | 27 | 26 |
| 475 | Neuroanatomy | 14 | 755 | 22 | 17 |
| 476 | enzymes | 31 | 750 | 331 | 440 |
| 477 | Nuclear Chemistry | 30 | 749 | 217 | 141 |
| 478 | exobiology | 9 | 748 | 104 | 78 |
| 479 | Genetic disorders | 17 | 745 | 129 | 100 |
| 480 | solar power | 16 | 738 | 207 | 227 |
| 481 | Continental shelf | 17 | 732 | 102 | 92 |
| 482 | sexual behavior | 9 | 731 | 316 | 157 |
| 483 | Marine Ecology | 17 | 730 | 231 | 124 |
| 484 | scientific societies | 16 | 728 | 205 | 144 |
| 485 | pollutants | 12 | 724 | 812 | 591 |
| 485 | vascular diseases | 14 | 724 | 242 | 253 |
| 487 | Environmental Management | 11 | 721 | 1500 | 1224 |
| 488 | cell movement | 13 | 718 | 57 | 46 |
| 489 | mycoses | 12 | 716 | 270 | 321 |
| 490 | Antibodies | 13 | 715 | 210 | 135 |
| 490 | Antigens | 13 | 715 | 296 | 198 |
| 492 | United States | 22 | 713 | 1702 | 1383 |
| 493 | Chemotherapy | 16 | 707 | 460 | 349 |
| 493 | Queuing Theory | 5 | 707 | 101 | 14 |
| 495 | RNA | 9 | 705 | 247 | 153 |
| 496 | Anthropology | 17 | 704 | 574 | 338 |
| 497 | Nanostructures | 23 | 701 | 565 | 693 |
| 498 | Sustainable Engineering | 11 | 699 | 780 | 574 |
| 499 | protein | 24 | 692 | 310 | 338 |
| 500 | Waste management | 8 | 691 | 787 | 245 |
| 501 | Water Purification | 7 | 687 | 688 | 194 |
| 501 | Water quality management | 7 | 687 | 1111 | 392 |
| 503 | behavioral medicine | 8 | 683 | 682 | 478 |
| 504 | Malaria | 18 | 678 | 164 | 142 |
| 505 | Seismology | 15 | 677 | 155 | 107 |
| 506 | Aquaculture | 17 | 675 | 543 | 416 |
| 507 | Attention | 37 | 673 | 362 | 485 |
| 508 | Applied Sciences | 3 | 670 | 19 | 18 |
| 508 | Applied Mechanics | 3 | 670 | 19 | 18 |
| 508 | Algorithms | 27 | 670 | 68 | 84 |
| 508 | Infrared spectroscopy | 11 | 670 | 65 | 17 |
| 508 | Photobiology | 18 | 670 | 358 | 301 |
| 513 | Number Theory | 47 | 664 | 64 | 34 |
| 514 | finance | 13 | 657 | 1141 | 719 |
| 515 | Paleoceanography | 8 | 646 | 93 | 85 |
| 516 | Microstructure | 67 | 637 | 14 | 59 |
| 517 | Developmental Disabilities | 14 | 636 | 389 | 366 |
| 518 | Chromosomes | 18 | 635 | 249 | 283 |
| 519 | Chromatographic analysis | 21 | 628 | 596 | 433 |
| 520 | Molecular Pharmacology | 12 | 625 | 302 | 279 |
| 521 | Visual Perception | 36 | 624 | 350 | 486 |
| 521 | biological factors | 19 | 624 | 632 | 577 |
| 523 | Ultrasonic Imaging | 45 | 613 | 24 | 79 |
| 524 | Infection control | 4 | 601 | 226 | 34 |
| 524 | Organelle biogenesis | 7 | 601 | 95 | 30 |
| 526 | Human evolution | 9 | 591 | 204 | 159 |
| 526 | NMR | 27 | 591 | 43 | 37 |
| 526 | magnetic resonance | 27 | 591 | 46 | 40 |
| 529 | polar regions | 29 | 589 | 101 | 134 |
| 529 | Asia | 13 | 589 | 1213 | 544 |
| 531 | Microbial Genetics | 5 | 580 | 224 | 110 |
| 531 | phytopathogenic bacteria | 5 | 580 | 163 | 105 |
| 533 | Telecommunication Systems | 26 | 579 | 372 | 343 |
| 533 | drugs | 15 | 579 | 778 | 642 |
| 535 | Pharmacogenetics | 6 | 575 | 531 | 281 |
| 535 | Speech | 7 | 575 | 585 | 323 |
| 537 | Physical Geography | 17 | 573 | 99 | 96 |
| 538 | plant communities | 10 | 572 | 554 | 510 |
| 539 | environmental protection | 19 | 570 | 1373 | 1429 |
| 540 | Soil Mechanics | 15 | 569 | 447 | 409 |
| 541 | Computer Vision | 15 | 568 | 418 | 465 |
| 542 | Mechatronics | 15 | 567 | 284 | 238 |
| 543 | Approximation Theory | 23 | 564 | 76 | 50 |
| 544 | Paleobiology | 13 | 559 | 86 | 10 |
| 545 | natural products | 17 | 551 | 659 | 483 |
| 546 | Luminescence | 45 | 548 | 135 | 256 |
| 547 | environmental exposure | 15 | 546 | 711 | 679 |
| 548 | Electrophoresis | 16 | 544 | 594 | 506 |
| 549 | coal | 15 | 543 | 649 | 720 |
| 550 | Environmental Geology | 11 | 541 | 790 | 536 |
| 551 | Physical fitness | 9 | 540 | 531 | 342 |
| 552 | Rock Mechanics | 12 | 539 | 410 | 349 |
| 553 | brain mapping | 9 | 538 | 294 | 276 |
| 554 | Chromatography | 17 | 537 | 571 | 435 |
| 555 | Respiratory Infections | 15 | 534 | 74 | 48 |
| 555 | Influenza | 15 | 534 | 28 | 26 |
| 557 | Audiology | 8 | 533 | 434 | 230 |
| 558 | Energy Conversion | 8 | 528 | 721 | 701 |
| 558 | Sedimentology | 14 | 528 | 175 | 197 |
| 560 | Cybernetics | 16 | 521 | 605 | 616 |
| 560 | Comparative Physiology | 12 | 521 | 344 | 285 |
| 560 | Animal Nutrition | 10 | 521 | 257 | 155 |
| 563 | Computational Mathematics | 4 | 520 | 86 | 23 |
| 563 | sedimentary basins | 9 | 520 | 78 | 53 |
| 565 | Hemostasis | 19 | 515 | 210 | 186 |
| 565 | Respiratory system | 14 | 515 | 167 | 171 |
| 567 | Mining Engineering | 11 | 514 | 200 | 161 |
| 568 | Origin of life | 6 | 507 | 60 | 17 |
| 569 | Volcanoes | 14 | 498 | 92 | 96 |
| 570 | Biomechanics | 17 | 496 | 438 | 489 |
| 571 | global environmental change | 12 | 495 | 292 | 353 |
| 571 | China | 18 | 495 | 1043 | 844 |
| 573 | Immunochemistry | 16 | 491 | 273 | 265 |
| 574 | Nonlinear mechanics | 19 | 490 | 74 | 74 |
| 575 | Nuclear Engineering | 17 | 488 | 546 | 353 |
| 576 | Nonlinear Optics | 13 | 485 | 16 | 18 |
| 576 | Inflammation | 11 | 485 | 447 | 468 |
| 578 | Solutions | 28 | 483 | 20 | 42 |
| 579 | Engineering Geology | 17 | 481 | 523 | 552 |
| 580 | Electrical Engineering | 150 | 475 | 268 | 893 |
| 580 | Biomass Energy | 4 | 475 | 2012 | 1264 |
| 582 | impact | 8 | 474 | 158 | 120 |
| 583 | Multivariate Analysis | 28 | 470 | 74 | 148 |
| 584 | musculoskeletal system | 5 | 465 | 78 | 22 |
| 585 | Physical organic chemistry | 14 | 464 | 639 | 488 |
| 585 | Gastrointestinal diseases | 2 | 464 | 734 | 116 |
| 587 | microwave communication systems | 9 | 463 | 181 | 99 |
| 587 | Soil fertility | 11 | 463 | 103 | 128 |
| 587 | Microwave devices | 10 | 463 | 221 | 122 |
| 590 | Liquid Crystals | 27 | 461 | 219 | 134 |
| 590 | Developmental Immunology | 19 | 461 | 108 | 199 |
| 592 | Clinical Biochemistry | 12 | 457 | 472 | 383 |
| 593 | Harmonic Analysis | 5 | 454 | 101 | 45 |
| 593 | Hippocampus | 2 | 454 | 345 | 141 |
| 595 | Antibacterial agents | 18 | 452 | 122 | 217 |
| 596 | Nuclear Fusion | 3 | 449 | 534 | 173 |
| 597 | Consciousness | 14 | 446 | 134 | 138 |
| 598 | Amyotrophic Lateral Sclerosis | 8 | 443 | 105 | 64 |
| 598 | Multiple sclerosis | 2 | 443 | 655 | 87 |
| 600 | Manufacturing Processes | 39 | 440 | 531 | 954 |
| 601 | Marine Biotechnology | 6 | 439 | 99 | 40 |
| 602 | Synchrotron Radiation | 18 | 436 | 76 | 71 |
| 603 | rehabilitation | 15 | 433 | 835 | 824 |
| 604 | Mycology | 20 | 428 | 506 | 665 |
| 605 | Evolutionary Computation | 3 | 424 | 464 | 257 |
| 605 | Crystallography | 32 | 424 | 437 | 364 |
| 607 | Heterocyclic compounds | 37 | 423 | 121 | 140 |
| 608 | Genetic algorithms | 2 | 420 | 407 | 209 |
| 608 | Invertebrates | 24 | 420 | 93 | 149 |
| 610 | fusion reactors | 2 | 418 | 485 | 80 |
| 611 | Pregnancy | 7 | 417 | 458 | 240 |
| 612 | actuators | 16 | 415 | 927 | 1074 |
| 612 | transducers | 16 | 415 | 927 | 1074 |
| 614 | Actuarial Science | 11 | 414 | 88 | 58 |
| 615 | Geomagnetism | 10 | 413 | 313 | 256 |
| 616 | Chronobiology | 12 | 412 | 122 | 108 |
| 616 | Circadian rhythms | 12 | 412 | 80 | 98 |
| 616 | biological clocks | 12 | 412 | 122 | 108 |
| 616 | circadian rhythm | 12 | 412 | 122 | 108 |
| 616 | biological rhythms | 12 | 412 | 111 | 106 |
| 621 | Radiobiology | 14 | 411 | 499 | 513 |
| 622 | Neuromuscular diseases | 15 | 409 | 198 | 232 |
| 622 | DNA methylation | 4 | 409 | 199 | 102 |
| 622 | Muscles | 15 | 409 | 270 | 386 |
| 625 | Asthma | 13 | 408 | 187 | 148 |
| 625 | Smart Materials | 8 | 408 | 521 | 329 |
| 627 | Econometrics | 5 | 404 | 1071 | 507 |
| 627 | Systems Biology | 12 | 404 | 631 | 589 |
| 627 | Endocrine glands | 4 | 404 | 193 | 169 |
| 630 | Machine Learning | 3 | 401 | 327 | 126 |
| 631 | language | 9 | 398 | 411 | 358 |
| 632 | Industrial Engineering | 15 | 395 | 709 | 759 |
| 632 | Finite Element Method | 52 | 395 | 3 | 58 |
| 634 | heredity | 14 | 393 | 207 | 184 |
| 634 | kidney | 6 | 393 | 28 | 30 |
| 636 | Radiology | 15 | 391 | 512 | 387 |
| 636 | Intelligent Transportation Systems | 4 | 391 | 934 | 541 |
| 636 | Human-Computer Interaction | 10 | 391 | 753 | 609 |
| 636 | human development | 10 | 391 | 400 | 386 |
| 640 | Porous materials | 15 | 390 | 168 | 138 |
| 641 | Community Psychiatry | 17 | 388 | 287 | 384 |
| 642 | Rock deformation | 11 | 387 | 47 | 52 |
| 642 | Turbulence | 11 | 387 | 80 | 53 |
| 644 | Neurogenetics | 13 | 385 | 58 | 59 |
| 644 | insurance | 9 | 385 | 166 | 91 |
| 646 | Neurotoxicology | 8 | 384 | 256 | 217 |
| 647 | Fractals | 16 | 383 | 357 | 391 |
| 648 | cell interaction | 9 | 381 | 523 | 518 |
| 649 | Southeast Asia | 6 | 380 | 193 | 34 |
| 650 | Australia | 14 | 378 | 660 | 528 |
| 651 | Thermodynamics | 16 | 377 | 413 | 272 |
| 652 | Otolaryngology | 5 | 372 | 350 | 180 |
| 653 | Planetary Science | 18 | 363 | 143 | 156 |
| 653 | Neuroplasticity | 4 | 363 | 167 | 53 |
| 655 | Structural design | 9 | 361 | 420 | 303 |
| 655 | Japan | 10 | 361 | 872 | 484 |
| 655 | Psychiatric Epidemiology | 16 | 361 | 121 | 225 |
| 658 | transport vesicles | 3 | 360 | 197 | 253 |
| 659 | pain management | 8 | 359 | 289 | 194 |
| 660 | Computer Graphics | 15 | 358 | 711 | 714 |
| 661 | cytokines | 10 | 356 | 537 | 569 |
| 661 | Aquatic ecology | 4 | 356 | 770 | 330 |
| 663 | neuronal plasticity | 3 | 353 | 64 | 29 |
| 664 | Travel | 20 | 352 | 167 | 215 |
| 665 | Wireless Communication Systems | 22 | 350 | 865 | 1031 |
| 666 | Primary health care | 18 | 348 | 530 | 575 |
| 666 | electroplating | 6 | 348 | 31 | 3 |
| 668 | Synaptic Transmission | 10 | 344 | 187 | 193 |
| 669 | Neural circuitry | 14 | 343 | 883 | 1023 |
| 669 | Learning | 9 | 343 | 713 | 610 |
| 669 | amino acids | 9 | 343 | 220 | 207 |
| 672 | mutation | 8 | 342 | 273 | 287 |
| 673 | epilepsy | 10 | 341 | 429 | 342 |
| 674 | medical education | 10 | 338 | 824 | 647 |
| 674 | Radiation effects | 8 | 338 | 288 | 289 |
| 676 | Ore deposits | 16 | 335 | 169 | 235 |
| 677 | Hydrometeorology | 5 | 334 | 131 | 135 |
| 677 | France | 14 | 334 | 120 | 46 |
| 677 | Petroleum | 15 | 334 | 65 | 39 |
| 677 | natural gas | 15 | 334 | 94 | 135 |
| 677 | natural disasters | 9 | 334 | 637 | 561 |
| 682 | Metastasis | 3 | 332 | 138 | 130 |
| 682 | venom | 9 | 332 | 325 | 260 |
| 682 | Toxins | 9 | 332 | 366 | 300 |
| 685 | Research Design | 7 | 331 | 670 | 552 |
| 686 | Psychometrics | 7 | 329 | 272 | 213 |
| 686 | Geochemical Modeling | 6 | 329 | 150 | 126 |
| 686 | Cell division | 7 | 329 | 168 | 156 |
| 686 | geological modeling | 6 | 329 | 291 | 157 |
| 690 | Biodegradation | 5 | 327 | 527 | 301 |
| 691 | Geodesy | 18 | 326 | 150 | 229 |
| 691 | Plasma devices | 10 | 326 | 136 | 138 |
| 693 | Renewable Energy Sources | 3 | 325 | 2507 | 1932 |
| 693 | feeding behavior | 8 | 325 | 393 | 378 |
| 693 | Appetite | 8 | 325 | 327 | 339 |
| 696 | Apoptosis | 7 | 324 | 94 | 68 |
| 696 | neurotoxins | 7 | 324 | 94 | 68 |
| 696 | Neurotoxic agents | 7 | 324 | 94 | 68 |
| 696 | Gerontology | 17 | 324 | 698 | 720 |
| 696 | Fishery resources | 11 | 324 | 214 | 239 |
| 696 | Fungi | 11 | 324 | 470 | 582 |
| 696 | DNA polymerases | 5 | 324 | 249 | 365 |
| 696 | Nerve regeneration | 7 | 324 | 94 | 68 |
| 704 | Sun | 18 | 323 | 122 | 162 |
| 705 | Education | 8 | 322 | 2202 | 1389 |
| 706 | biological invasions | 8 | 320 | 303 | 262 |
| 706 | Allergies | 9 | 320 | 27 | 35 |
| 708 | Carcinogenesis | 13 | 319 | 335 | 499 |
| 709 | isomerism | 12 | 316 | 72 | 64 |
| 709 | Chirality | 12 | 316 | 72 | 64 |
| 711 | Reproductive health | 9 | 315 | 332 | 280 |
| 712 | Nanochemistry | 13 | 314 | 414 | 416 |
| 713 | Industrial Microbiology | 8 | 312 | 1120 | 1115 |
| 714 | Quantum electronics | 13 | 311 | 731 | 629 |
| 715 | Radio waves | 9 | 310 | 483 | 477 |
| 716 | Marine Geophysics | 8 | 309 | 85 | 47 |
| 716 | Histocompatibility Testing | 4 | 309 | 355 | 154 |
| 718 | environmental issues | 6 | 308 | 227 | 161 |
| 719 | Drug design | 8 | 306 | 835 | 750 |
| 720 | Pharmaceutical Technology | 8 | 305 | 902 | 792 |
| 721 | Rheology | 12 | 304 | 225 | 228 |
| 721 | health planning | 26 | 304 | 584 | 859 |
| 721 | Brain damage | 5 | 304 | 257 | 158 |
| 724 | surface preparation | 2 | 303 | 55 | 4 |
| 725 | Drug delivery systems | 8 | 301 | 926 | 929 |
| 726 | micromechanics | 5 | 295 | 422 | 252 |
| 727 | Environmental Law | 9 | 291 | 526 | 801 |
| 727 | embryo transfer | 4 | 291 | 351 | 149 |
| 729 | Estuaries | 13 | 290 | 43 | 91 |
| 730 | peptides | 26 | 288 | 92 | 207 |
| 731 | Chemical analysis | 10 | 287 | 552 | 580 |
| 732 | synthesis | 22 | 286 | 200 | 260 |
| 733 | Geriatric Oncology | 6 | 283 | 319 | 267 |
| 733 | preimplantation genetic diagnosis | 3 | 283 | 402 | 148 |
| 735 | Ecohydrology | 2 | 282 | 473 | 103 |
| 735 | carcinogens | 9 | 282 | 439 | 543 |
| 735 | mutagens | 9 | 282 | 354 | 483 |
| 738 | Pharmacognosy | 5 | 280 | 1405 | 1128 |
| 738 | Energy Storage | 5 | 280 | 952 | 679 |
| 738 | Detectors | 9 | 280 | 839 | 682 |
| 741 | Morphology | 12 | 278 | 360 | 316 |
| 742 | Hemodynamics | 4 | 276 | 466 | 433 |
| 742 | drug evaluation | 7 | 276 | 753 | 605 |
| 744 | Clinical Trials | 4 | 275 | 350 | 174 |
| 745 | Extreme environments | 5 | 272 | 128 | 97 |
| 746 | Chemical Ecology | 9 | 271 | 242 | 305 |
| 746 | Health promotion | 2 | 271 | 1226 | 464 |
| 748 | Coral reef biology | 5 | 269 | 206 | 175 |
| 748 | catalytic activity | 6 | 269 | 454 | 383 |
| 750 | Oxidation | 5 | 265 | 93 | 56 |
| 750 | Synapses | 5 | 265 | 158 | 127 |
| 752 | pheromones | 8 | 264 | 232 | 292 |
| 753 | Culture techniques | 10 | 260 | 115 | 109 |
| 754 | Bones | 4 | 259 | 565 | 490 |
| 755 | Information Science | 14 | 256 | 1126 | 1530 |
| 756 | Carbohydrates | 13 | 255 | 123 | 235 |
| 756 | molecular design | 10 | 255 | 88 | 118 |
| 758 | Database Management | 4 | 254 | 643 | 415 |
| 758 | older people | 9 | 254 | 840 | 547 |
| 760 | Information Technology | 12 | 252 | 1145 | 1266 |
| 760 | Developmental Neurobiology | 12 | 252 | 151 | 202 |
| 762 | Radio wave propagation | 6 | 250 | 486 | 249 |
| 763 | Celestial Mechanics | 22 | 248 | 39 | 76 |
| 763 | Groundwater | 8 | 248 | 260 | 262 |
| 763 | disease vectors | 4 | 248 | 760 | 484 |
| 766 | gastrointestinal tract | 2 | 246 | 387 | 258 |
| 767 | Electrophysiology | 4 | 245 | 740 | 418 |
| 768 | freshwater biology | 12 | 244 | 346 | 443 |
| 769 | Biopharmaceutics | 6 | 240 | 696 | 658 |
| 769 | Laser-plasma interactions | 13 | 240 | 17 | 16 |
| 769 | Plasma density | 13 | 240 | 17 | 16 |
| 772 | Lipid metabolism | 8 | 239 | 165 | 247 |
| 772 | Lipid | 8 | 239 | 165 | 247 |
| 774 | Frontotemporal lobar degeneration | 4 | 235 | 134 | 75 |
| 775 | Communication | 8 | 234 | 1256 | 1130 |
| 775 | alcoholism | 20 | 234 | 467 | 754 |
| 777 | Radiochemistry | 10 | 232 | 455 | 324 |
| 777 | Water Microbiology | 2 | 232 | 570 | 190 |
| 777 | Fouling | 2 | 232 | 287 | 134 |
| 780 | Terahertz Technology | 2 | 231 | 193 | 64 |
| 780 | Computational Complexity | 10 | 231 | 473 | 309 |
| 780 | Fisheries | 8 | 231 | 879 | 813 |
| 783 | Genetic Toxicology | 5 | 230 | 251 | 271 |
| 784 | Structural Engineering | 6 | 228 | 1129 | 870 |
| 785 | psychotherapy | 4 | 225 | 1010 | 709 |
| 785 | Autonomous robots | 5 | 225 | 113 | 109 |
| 785 | Liquid chromatography | 14 | 225 | 122 | 87 |
| 788 | Orthopedics | 5 | 223 | 980 | 740 |
| 789 | soil conservation | 4 | 222 | 636 | 424 |
| 789 | soil pollution | 4 | 222 | 434 | 211 |
| 791 | Neuropsychiatry | 8 | 221 | 433 | 456 |
| 792 | Behavioral Genetics | 3 | 220 | 226 | 160 |
| 792 | biomimicry | 5 | 220 | 112 | 93 |
| 794 | Continuum Mechanics | 10 | 219 | 54 | 63 |
| 794 | carbon monoxide | 6 | 219 | 171 | 227 |
| 796 | fuel cells | 5 | 217 | 936 | 920 |
| 797 | Software Engineering | 7 | 216 | 631 | 562 |
| 798 | Medical Technology | 4 | 215 | 1241 | 864 |
| 798 | Adhesion | 8 | 215 | 320 | 273 |
| 798 | adhesives | 8 | 215 | 342 | 277 |
| 801 | Algal blooms | 6 | 212 | 146 | 191 |
| 801 | Cyanobacteria | 6 | 212 | 146 | 191 |
| 801 | microalgae | 6 | 212 | 146 | 191 |
| 804 | Functional Genomics | 6 | 211 | 138 | 188 |
| 804 | Breeding | 8 | 211 | 650 | 691 |
| 806 | drug addiction | 17 | 210 | 385 | 684 |
| 807 | Retina | 2 | 209 | 190 | 263 |
| 807 | eye | 2 | 209 | 231 | 270 |
| 809 | Animal genetics | 3 | 207 | 539 | 325 |
| 809 | mathematical concepts | 4 | 207 | 330 | 115 |
| 811 | Health Services Research | 9 | 205 | 780 | 774 |
| 811 | occupational diseases | 11 | 205 | 310 | 461 |
| 813 | Protein engineering | 3 | 204 | 211 | 129 |
| 814 | Medicinal plants | 4 | 203 | 1132 | 1022 |
| 815 | Smoking | 10 | 202 | 335 | 488 |
| 816 | Animal breeding | 3 | 199 | 719 | 430 |
| 816 | Familial diseases | 2 | 199 | 198 | 68 |
| 818 | Substance Abuse | 16 | 198 | 518 | 762 |
| 818 | Tropical Medicine | 16 | 198 | 619 | 876 |
| 818 | energy development | 3 | 198 | 825 | 584 |
| 821 | Radiation Oncology | 1 | 197 | 530 | 180 |
| 821 | Plant hormones | 10 | 197 | 91 | 192 |
| 821 | Evolution equations | 4 | 197 | 122 | 24 |
| 824 | Logic Programming | 7 | 196 | 175 | 96 |
| 824 | Climate | 8 | 196 | 271 | 355 |
| 826 | risk factors | 8 | 194 | 344 | 400 |
| 826 | Semigroups | 16 | 194 | 45 | 25 |
| 828 | Occupational Health | 10 | 189 | 440 | 485 |
| 829 | Food Microbiology | 2 | 188 | 1333 | 978 |
| 830 | Immunopharmacology | 5 | 186 | 757 | 665 |
| 831 | X-ray spectroscopy | 14 | 182 | 33 | 53 |
| 831 | Enteral nutrition | 6 | 182 | 488 | 591 |
| 831 | Parenteral nutrition | 6 | 182 | 585 | 676 |
| 834 | Topology | 12 | 181 | 120 | 111 |
| 834 | Elderly | 8 | 181 | 698 | 388 |
| 836 | Geriatric Pharmacology | 5 | 180 | 187 | 167 |
| 836 | Fertilization | 9 | 180 | 17 | 44 |
| 836 | gametes | 9 | 180 | 17 | 44 |
| 839 | Digestive system diseases | 7 | 179 | 538 | 543 |
| 840 | visualization | 17 | 177 | 520 | 524 |
| 841 | Petroleum Engineering | 7 | 176 | 401 | 402 |
| 841 | energy conservation | 2 | 176 | 2307 | 1717 |
| 843 | Social Sciences | 8 | 174 | 2112 | 1728 |
| 844 | cosmic rays | 6 | 173 | 269 | 208 |
| 844 | gene transfer | 8 | 173 | 90 | 137 |
| 844 | genetic transformation | 8 | 173 | 90 | 137 |
| 847 | Sports Medicine | 15 | 172 | 1063 | 1343 |
| 847 | emergency management | 5 | 172 | 475 | 419 |
| 847 | Atherosclerosis | 4 | 172 | 111 | 106 |
| 850 | Antarctica | 7 | 168 | 287 | 226 |
| 851 | Gene expression | 4 | 167 | 205 | 187 |
| 852 | animals | 10 | 166 | 611 | 615 |
| 853 | Philosophy of Mind | 3 | 164 | 266 | 121 |
| 853 | Lung Transplantation | 4 | 164 | 272 | 260 |
| 853 | Heart transplantation | 4 | 164 | 272 | 260 |
| 853 | Hemophilia | 8 | 164 | 198 | 203 |
| 857 | Psychosomatic Medicine | 7 | 163 | 430 | 563 |
| 857 | Thorax | 3 | 163 | 332 | 305 |
| 859 | Fuzzy systems | 8 | 162 | 965 | 787 |
| 860 | Plant tissue culture | 14 | 161 | 202 | 491 |
| 860 | Microfluidics | 6 | 161 | 120 | 131 |
| 860 | Sonochemistry | 1 | 161 | 1107 | 670 |
| 860 | Latin America | 10 | 161 | 640 | 405 |
| 860 | extraterrestrial environment | 10 | 161 | 231 | 283 |
| 860 | astronomical phenomena | 10 | 161 | 203 | 252 |
| 866 | Plant Biotechnology | 1 | 160 | 1208 | 535 |
| 866 | air | 3 | 160 | 133 | 143 |
| 868 | Industrial Statistics | 2 | 159 | 293 | 36 |
| 868 | X-ray crystallography | 10 | 159 | 271 | 263 |
| 870 | Immunogenetics | 7 | 157 | 353 | 402 |
| 871 | water resources | 21 | 156 | 46 | 105 |
| 871 | Randomized Controlled Trials | 13 | 156 | 389 | 448 |
| 871 | Arthropods | 5 | 156 | 125 | 64 |
| 874 | Nondestructive testing | 9 | 155 | 319 | 390 |
| 874 | Ecosystem management | 1 | 155 | 1083 | 474 |
| 876 | Depression | 6 | 154 | 184 | 373 |
| 876 | Anxiety Disorders | 6 | 154 | 323 | 512 |
| 876 | Anxiety | 6 | 154 | 322 | 513 |
| 876 | Peptide | 18 | 154 | 30 | 83 |
| 880 | Biomolecules | 2 | 153 | 560 | 398 |
| 881 | Game Theory | 9 | 152 | 279 | 321 |
| 882 | Economic Development | 3 | 151 | 1497 | 1187 |
| 882 | economic policy | 3 | 151 | 2221 | 1224 |
| 882 | Quality of life | 11 | 151 | 611 | 1108 |
| 885 | Bioremediation | 4 | 150 | 685 | 667 |
| 885 | glycoproteins | 4 | 150 | 368 | 337 |
| 885 | Glycoconjugates | 4 | 150 | 368 | 337 |
| 885 | particles | 4 | 150 | 868 | 639 |
| 885 | glycolipids | 4 | 150 | 368 | 337 |
| 890 | Veterinary Epidemiology | 2 | 149 | 48 | 30 |
| 890 | Herpetology | 5 | 149 | 224 | 118 |
| 890 | Optoelectronic devices | 4 | 149 | 848 | 384 |
| 890 | Plant cell culture | 9 | 149 | 270 | 502 |
| 890 | Eigenvalues | 24 | 149 | 29 | 31 |
| 895 | Thermochemistry | 5 | 148 | 381 | 321 |
| 896 | Agricultural Chemistry | 7 | 146 | 1385 | 1622 |
| 896 | Geographic information systems | 6 | 146 | 743 | 604 |
| 896 | Magnetohydrodynamics | 5 | 146 | 190 | 162 |
| 899 | Scheduling | 13 | 145 | 19 | 81 |
| 899 | Production Scheduling | 13 | 145 | 19 | 81 |
| 901 | blood transfusion | 5 | 144 | 382 | 335 |
| 902 | food technology | 5 | 140 | 1874 | 1952 |
| 902 | Child psychology | 4 | 140 | 1133 | 1121 |
| 902 | prostaglandins | 4 | 140 | 345 | 297 |
| 902 | Capital asset pricing model | 5 | 140 | 22 | 26 |
| 906 | air quality management | 1 | 138 | 947 | 365 |
| 906 | indoor air pollution | 1 | 138 | 675 | 274 |
| 906 | Ventilation | 1 | 138 | 895 | 322 |
| 906 | Sick building syndrome | 1 | 138 | 675 | 274 |
| 910 | Agronomy | 3 | 137 | 399 | 435 |
| 911 | Nanoelectronics | 11 | 136 | 348 | 385 |
| 911 | Flexible manufacturing systems | 3 | 136 | 394 | 286 |
| 911 | Discrete geometry | 10 | 136 | 93 | 116 |
| 911 | optical instruments | 11 | 136 | 133 | 227 |
| 911 | Granular materials | 3 | 136 | 619 | 440 |
| 911 | Semiconductor industry | 10 | 136 | 270 | 304 |
| 911 | Decision making | 6 | 136 | 960 | 1017 |
| 918 | Solitons | 15 | 134 | 375 | 841 |
| 918 | Cell adhesion | 4 | 134 | 97 | 129 |
| 918 | Chaos | 15 | 134 | 375 | 841 |
| 921 | Evolutionary Genetics | 5 | 133 | 439 | 463 |
| 921 | Molecular Epidemiology | 5 | 133 | 439 | 463 |
| 921 | embryonic development | 4 | 133 | 308 | 305 |
| 921 | Cytokine | 4 | 133 | 300 | 383 |
| 925 | Structural dynamics | 4 | 132 | 823 | 884 |
| 925 | Prospecting | 7 | 132 | 17 | 28 |
| 927 | Pharmacy | 5 | 131 | 1477 | 1492 |
| 927 | Reptiles | 4 | 131 | 225 | 116 |
| 929 | Ion Exchange | 5 | 129 | 76 | 64 |
| 929 | Adolescent | 8 | 129 | 1147 | 1388 |
| 929 | Solvent extraction | 5 | 129 | 76 | 64 |
| 932 | Micropaleontology | 7 | 128 | 33 | 37 |
| 932 | transgenic organisms | 5 | 128 | 129 | 193 |
| 932 | transgenic animals | 5 | 128 | 125 | 187 |
| 932 | Transgenic plants | 5 | 128 | 273 | 378 |
| 936 | moral development | 2 | 127 | 157 | 76 |
| 937 | Nuclear Energy | 6 | 126 | 627 | 551 |
| 938 | Sustainable Development | 5 | 125 | 1568 | 1751 |
| 938 | Paleobiogeography | 2 | 125 | 91 | 17 |
| 938 | cardiac catheterization | 7 | 125 | 364 | 331 |
| 941 | Chemical kinetics | 7 | 124 | 431 | 308 |
| 942 | Civil Engineering | 14 | 123 | 607 | 710 |
| 943 | Radiography | 3 | 122 | 658 | 744 |
| 943 | Pesticides | 4 | 122 | 522 | 412 |
| 943 | curriculum evaluation | 2 | 122 | 484 | 255 |
| 946 | Adaptive control systems | 4 | 121 | 509 | 344 |
| 946 | city planning | 2 | 121 | 1825 | 1177 |
| 948 | Mental Health | 5 | 119 | 1116 | 1087 |
| 949 | Multimedia Systems | 9 | 118 | 1024 | 1261 |
| 949 | herbicides | 4 | 118 | 193 | 180 |
| 951 | Neuroendocrinology | 1 | 116 | 241 | 212 |
| 951 | Sports | 2 | 116 | 2237 | 1330 |
| 953 | vitamins | 1 | 115 | 284 | 133 |
| 954 | Ecological Engineering | 3 | 114 | 644 | 705 |
| 954 | Chemical structure | 1 | 114 | 1019 | 222 |
| 956 | Information Systems | 7 | 112 | 857 | 1123 |
| 957 | Metallography | 4 | 111 | 673 | 660 |
| 957 | Human biology | 4 | 111 | 526 | 426 |
| 959 | Neonatology | 1 | 110 | 942 | 437 |
| 959 | Multiphase Flow | 4 | 110 | 332 | 352 |
| 961 | Hazardous waste | 3 | 109 | 945 | 1185 |
| 961 | internet | 4 | 109 | 1367 | 1304 |
| 963 | Magnetic Materials | 14 | 108 | 697 | 1227 |
| 963 | Oligosaccharide | 1 | 108 | 484 | 311 |
| 963 | industrial waste | 3 | 108 | 841 | 1128 |
| 966 | Neurotransmitters | 3 | 106 | 490 | 368 |
| 967 | Mathematical Economics | 5 | 105 | 217 | 273 |
| 967 | Eating Disorders | 6 | 105 | 530 | 685 |
| 967 | Feeding and Eating Disorders | 6 | 105 | 509 | 663 |
| 970 | Building Materials | 2 | 104 | 1822 | 1737 |
| 971 | Landscape Ecology | 2 | 102 | 542 | 492 |
| 971 | Geothermal Energy | 4 | 102 | 181 | 198 |
| 971 | radioactive waste | 2 | 102 | 995 | 1154 |
| 974 | Health Education | 8 | 101 | 1024 | 1323 |
| 974 | Informatics | 8 | 101 | 460 | 723 |
| 976 | Systems Analysis | 4 | 100 | 999 | 871 |
| 976 | Ethnology | 7 | 100 | 917 | 877 |
| 976 | Water chemistry | 4 | 100 | 214 | 214 |
| 976 | Navier-Stokes equations | 7 | 100 | 43 | 53 |
| 980 | Extreme Value Theory | 7 | 99 | 31 | 51 |
| 981 | Particle Physics | 6 | 98 | 123 | 265 |
| 981 | environmental indicators | 3 | 98 | 1131 | 1284 |
| 981 | software | 6 | 98 | 686 | 1064 |
| 981 | biochemical markers | 7 | 98 | 302 | 480 |
| 985 | Moon | 6 | 97 | 85 | 71 |
| 985 | cryosphere | 1 | 97 | 527 | 355 |
| 987 | Vaccination | 4 | 95 | 166 | 222 |
| 987 | Longevity | 1 | 95 | 346 | 174 |
| 987 | rejuvenation | 1 | 95 | 264 | 147 |
| 990 | epidemiologic methods | 3 | 94 | 158 | 92 |
| 991 | Cell communication | 3 | 93 | 537 | 683 |
| 992 | Solar power plants | 1 | 91 | 320 | 192 |
| 992 | Photovoltaic Cells | 1 | 91 | 322 | 192 |
| 992 | Paleobotany | 2 | 91 | 210 | 158 |
| 992 | Vegetation dynamics | 2 | 91 | 197 | 157 |
| 996 | Nonparametric Statistics | 11 | 90 | 16 | 68 |
| 996 | Molecular recognition | 4 | 90 | 128 | 175 |
| 996 | India | 2 | 90 | 1848 | 652 |
| 999 | biological monitoring | 3 | 89 | 465 | 498 |
| 1000 | Interferons | 3 | 88 | 260 | 255 |