| 1 | Physics | 910 | 73.8K | 456 | 377 |
| 2 | Chemistry | 930 | 54.9K | 451 | 383 |
| 3 | Nuclear Physics | 1,652 | 54.8K | 109 | 148 |
| 4 | Biology | 462 | 54.1K | 555 | 415 |
| 5 | Science | 413 | 53.3K | 640 | 427 |
| 6 | Ecology | 808 | 38.9K | 159 | 224 |
| 7 | Natural history | 88 | 34.4K | 451 | 314 |
| 8 | Physiology | 299 | 23.6K | 256 | 127 |
| 9 | Sports Medicine | 513 | 21.4K | 20 | 22 |
| 10 | Environment | 256 | 18.5K | 320 | 306 |
| 11 | Sports | 493 | 17.1K | 7 | 11 |
| 12 | Pollution | 372 | 15.8K | 229 | 337 |
| 13 | Condensed Matter | 324 | 14.9K | 327 | 258 |
| 14 | Solid State Physics | 359 | 13.5K | 326 | 276 |
| 15 | Astrophysics | 413 | 13.4K | 314 | 485 |
| 16 | Geriatrics | 282 | 12.6K | 128 | 98 |
| 17 | Medicine | 319 | 12.6K | 802 | 797 |
| 18 | Psychology | 305 | 12.0K | 305 | 288 |
| 19 | Evolution | 141 | 10.9K | 131 | 119 |
| 20 | Education | 247 | 10.2K | 217 | 131 |
| 21 | Research | 277 | 10.0K | 727 | 661 |
| 22 | Biochemistry | 233 | 9.9K | 1,089 | 946 |
| 23 | environmental pollution | 299 | 9.4K | 155 | 257 |
| 24 | Aging | 259 | 9.2K | 128 | 132 |
| 25 | Astronomy | 213 | 8.8K | 401 | 457 |
| 26 | Educational Psychology | 177 | 8.6K | 48 | 50 |
| 27 | Environmental Health | 172 | 8.2K | 473 | 469 |
| 28 | Europe | 364 | 8.2K | 71 | 80 |
| 29 | biological evolution | 110 | 8.0K | 206 | 207 |
| 30 | Chemical Engineering | 57 | 7.8K | 1,184 | 498 |
| 31 | Teaching | 130 | 7.8K | 73 | 32 |
| 32 | Quantum Gravity | 195 | 7.7K | 325 | 322 |
| 33 | Mathematics | 549 | 7.7K | 312 | 308 |
| 34 | Molecular Biology | 156 | 7.6K | 1,087 | 989 |
| 35 | Respiration | 56 | 7.4K | 217 | 66 |
| 36 | United States | 163 | 6.7K | 485 | 405 |
| 37 | Water pollution | 87 | 6.6K | 329 | 198 |
| 38 | Animal Behavior | 174 | 6.4K | 146 | 207 |
| 39 | Public Health | 237 | 6.4K | 389 | 464 |
| 40 | Water | 66 | 6.4K | 393 | 248 |
| 41 | Ethology | 159 | 6.0K | 93 | 165 |
| 42 | Organic Chemistry | 124 | 5.8K | 336 | 231 |
| 43 | Physical Chemistry | 34 | 5.4K | 616 | 198 |
| 44 | Environmental monitoring | 165 | 5.3K | 201 | 336 |
| 45 | Gerontology | 122 | 5.3K | 160 | 71 |
| 46 | Child psychology | 81 | 5.2K | 202 | 180 |
| 47 | Biotechnology | 62 | 5.1K | 1,241 | 836 |
| 48 | Catalysis | 132 | 5.0K | 570 | 623 |
| 49 | human behavior | 120 | 5.0K | 206 | 309 |
| 50 | Environmental Engineering | 48 | 5.0K | 767 | 398 |
| 51 | Animal ecology | 129 | 5.0K | 45 | 71 |
| 52 | Bioorganic chemistry | 49 | 4.9K | 603 | 215 |
| 53 | Behavior | 90 | 4.9K | 447 | 426 |
| 54 | Child Development | 103 | 4.8K | 201 | 199 |
| 55 | management | 98 | 4.7K | 425 | 466 |
| 56 | Neurology | 91 | 4.7K | 882 | 813 |
| 57 | Statistical physics | 137 | 4.7K | 528 | 457 |
| 58 | Nanotechnology | 103 | 4.6K | 861 | 852 |
| 59 | Human genetics | 21 | 4.6K | 660 | 577 |
| 60 | Microbiology | 84 | 4.4K | 1,146 | 1,031 |
| 61 | sanitation | 27 | 4.2K | 433 | 278 |
| 62 | Biomass Energy | 73 | 4.2K | 258 | 267 |
| 63 | Epidemiology | 171 | 4.1K | 278 | 383 |
| 64 | Information Science | 46 | 4.0K | 419 | 164 |
| 65 | Biochemical Engineering | 25 | 3.9K | 1,156 | 627 |
| 66 | Adolescent | 76 | 3.9K | 232 | 145 |
| 67 | Virology | 59 | 3.7K | 544 | 592 |
| 68 | adolescence | 58 | 3.6K | 107 | 66 |
| 69 | Cytology | 43 | 3.6K | 1,049 | 826 |
| 70 | Music | 94 | 3.5K | 27 | 7 |
| 71 | Evolutionary Computation | 19 | 3.5K | 86 | 53 |
| 72 | Operations Research | 60 | 3.5K | 377 | 192 |
| 73 | Developmental Psychology | 92 | 3.5K | 75 | 114 |
| 74 | Nonlinear Dynamics | 53 | 3.5K | 479 | 248 |
| 75 | Telecommunication | 58 | 3.4K | 480 | 323 |
| 76 | Learning | 67 | 3.4K | 160 | 154 |
| 77 | Cell Biology | 28 | 3.4K | 1,210 | 846 |
| 78 | Exercise | 141 | 3.3K | 24 | 49 |
| 79 | Sociology | 104 | 3.3K | 339 | 331 |
| 80 | Nanostructured Materials | 82 | 3.2K | 558 | 531 |
| 81 | rehabilitation | 89 | 3.2K | 193 | 213 |
| 82 | Vocational guidance | 53 | 3.1K | 127 | 98 |
| 83 | Information Technology | 74 | 3.1K | 171 | 195 |
| 84 | Soil biology | 82 | 3.1K | 60 | 132 |
| 85 | Environmental Chemistry | 56 | 3.1K | 238 | 320 |
| 86 | Zoology | 106 | 3.1K | 250 | 230 |
| 87 | Psychophysiology | 101 | 3.1K | 415 | 512 |
| 88 | Cognitive Science | 63 | 3.0K | 144 | 190 |
| 89 | Genetic algorithms | 17 | 2.9K | 69 | 47 |
| 90 | Genetics | 59 | 2.9K | 667 | 689 |
| 91 | Environmental Policy | 66 | 2.9K | 483 | 521 |
| 92 | computer networks | 50 | 2.9K | 443 | 210 |
| 93 | Materials | 63 | 2.9K | 1,534 | 1,258 |
| 94 | Psychiatry | 96 | 2.8K | 610 | 721 |
| 95 | Artificial Intelligence | 35 | 2.8K | 1,095 | 540 |
| 96 | Metabolism | 60 | 2.8K | 503 | 536 |
| 97 | Materials Science | 57 | 2.8K | 1,092 | 892 |
| 98 | Biomechanics | 38 | 2.8K | 236 | 160 |
| 99 | Neuropsychology | 80 | 2.7K | 308 | 325 |
| 100 | Physical fitness | 83 | 2.6K | 32 | 81 |
| 101 | Physical Therapy | 62 | 2.6K | 145 | 143 |
| 101 | nanoscience | 49 | 2.6K | 648 | 618 |
| 103 | Obesity | 41 | 2.6K | 410 | 305 |
| 104 | Toxicology | 80 | 2.6K | 772 | 801 |
| 105 | Parasitology | 71 | 2.6K | 273 | 189 |
| 106 | personality | 49 | 2.6K | 287 | 288 |
| 107 | Reading | 58 | 2.5K | 45 | 35 |
| 108 | Biophysics | 77 | 2.5K | 1,129 | 1,113 |
| 109 | Environmental Management | 61 | 2.4K | 416 | 511 |
| 110 | Biodiversity conservation | 47 | 2.3K | 300 | 489 |
| 111 | Communication | 100 | 2.3K | 175 | 292 |
| 112 | Bioengineering | 34 | 2.2K | 1,193 | 972 |
| 113 | Colloids | 48 | 2.2K | 1,024 | 873 |
| 114 | Learning disabilities | 47 | 2.2K | 114 | 65 |
| 115 | individual differences | 64 | 2.2K | 1 | 5 |
| 116 | Health Information Management | 6 | 2.2K | 133 | 57 |
| 117 | Economics | 102 | 2.2K | 676 | 671 |
| 118 | Electrochemistry | 50 | 2.2K | 1,126 | 735 |
| 119 | Membranes | 16 | 2.2K | 737 | 353 |
| 120 | freshwater biology | 49 | 2.2K | 65 | 66 |
| 121 | Social behavior | 58 | 2.1K | 145 | 189 |
| 122 | Diet | 34 | 2.1K | 470 | 425 |
| 123 | behavioral medicine | 57 | 2.1K | 155 | 231 |
| 124 | Surface Chemistry | 35 | 2.1K | 1,266 | 869 |
| 125 | mathematical analysis | 170 | 2.1K | 117 | 193 |
| 126 | Small Business | 26 | 2.1K | 107 | 151 |
| 127 | Genetic engineering | 12 | 2.1K | 943 | 349 |
| 128 | environmental protection | 60 | 2.1K | 537 | 637 |
| 129 | Solid State Chemistry | 77 | 2.0K | 363 | 311 |
| 130 | Marine Biology | 96 | 2.0K | 325 | 485 |
| 131 | educational planning | 31 | 2.0K | 32 | 19 |
| 132 | Health Education | 60 | 2.0K | 275 | 227 |
| 133 | Environmental pollutants | 59 | 1.9K | 240 | 300 |
| 134 | Work | 21 | 1.9K | 50 | 14 |
| 135 | Job satisfaction | 20 | 1.9K | 9 | 13 |
| 135 | job stress | 20 | 1.9K | 9 | 13 |
| 137 | Family | 48 | 1.9K | 147 | 104 |
| 138 | Youth | 28 | 1.9K | 121 | 74 |
| 139 | pollutants | 57 | 1.9K | 189 | 251 |
| 140 | Transportation | 14 | 1.9K | 708 | 263 |
| 140 | soil microbiology | 47 | 1.9K | 242 | 365 |
| 142 | Nuclear Engineering | 78 | 1.9K | 195 | 103 |
| 143 | Medical genetics | 24 | 1.9K | 788 | 655 |
| 144 | Business Ethics | 41 | 1.9K | 72 | 184 |
| 145 | Microbial Ecology | 36 | 1.8K | 541 | 587 |
| 146 | Industrial Microbiology | 16 | 1.8K | 728 | 336 |
| 147 | Social Sciences | 70 | 1.8K | 502 | 425 |
| 148 | Social Psychology | 55 | 1.8K | 430 | 479 |
| 149 | Parasitic Diseases | 46 | 1.8K | 289 | 249 |
| 150 | Growth | 15 | 1.8K | 451 | 324 |
| 151 | Wildlife conservation | 44 | 1.8K | 168 | 208 |
| 152 | Soil ecology | 50 | 1.7K | 51 | 76 |
| 153 | Scandinavia | 131 | 1.7K | 16 | 45 |
| 154 | Traffic Engineering | 3 | 1.7K | 430 | 35 |
| 155 | Botany | 60 | 1.7K | 898 | 997 |
| 156 | Quality of life | 28 | 1.7K | 273 | 195 |
| 157 | Parasites | 38 | 1.7K | 255 | 157 |
| 158 | Energy Conversion | 9 | 1.7K | 692 | 397 |
| 159 | families | 44 | 1.7K | 107 | 76 |
| 160 | Regional Planning | 37 | 1.6K | 326 | 224 |
| 161 | Neurophysiology | 67 | 1.6K | 550 | 740 |
| 162 | Nervous system | 24 | 1.6K | 771 | 575 |
| 163 | viruses | 36 | 1.6K | 323 | 370 |
| 164 | auditory perception | 30 | 1.6K | 38 | 40 |
| 165 | Nutrition | 38 | 1.6K | 1,065 | 958 |
| 166 | Functional Analysis | 101 | 1.6K | 44 | 102 |
| 167 | Psycholinguistics | 49 | 1.6K | 133 | 199 |
| 168 | Family Therapy | 59 | 1.6K | 64 | 52 |
| 169 | Organizational Behavior | 26 | 1.5K | 94 | 131 |
| 170 | Medical Anthropology | 27 | 1.5K | 291 | 278 |
| 171 | Wireless Communication Systems | 50 | 1.5K | 476 | 430 |
| 171 | Adolescent Psychology | 30 | 1.5K | 166 | 131 |
| 173 | Polymers | 45 | 1.5K | 1,325 | 1,099 |
| 174 | Numerical Analysis | 51 | 1.5K | 417 | 276 |
| 175 | preventive medicine | 26 | 1.5K | 298 | 225 |
| 176 | Aquaculture | 49 | 1.5K | 239 | 244 |
| 177 | older people | 66 | 1.4K | 227 | 165 |
| 178 | Musicology | 45 | 1.4K | 4 | 3 |
| 179 | Spectrum analysis | 79 | 1.4K | 869 | 1,172 |
| 180 | marketing | 24 | 1.4K | 631 | 491 |
| 181 | Language Disorders | 41 | 1.4K | 146 | 114 |
| 181 | Mathematical Physics | 81 | 1.4K | 508 | 572 |
| 183 | Entrepreneurship | 21 | 1.4K | 199 | 280 |
| 184 | Climate change | 16 | 1.4K | 371 | 545 |
| 184 | Eutrophication | 16 | 1.4K | 365 | 542 |
| 186 | Bones | 26 | 1.4K | 154 | 163 |
| 187 | Waste management | 42 | 1.4K | 168 | 100 |
| 188 | Conservation Biology | 32 | 1.4K | 200 | 231 |
| 189 | Oceanography | 23 | 1.4K | 601 | 437 |
| 190 | Biomedical Engineering | 52 | 1.4K | 1,139 | 1,265 |
| 190 | Molecular ecology | 34 | 1.4K | 232 | 336 |
| 192 | Systems Engineering | 30 | 1.4K | 517 | 341 |
| 193 | internet | 31 | 1.3K | 313 | 284 |
| 194 | Geography | 20 | 1.3K | 737 | 441 |
| 195 | Perception | 37 | 1.3K | 434 | 403 |
| 196 | genome | 16 | 1.3K | 542 | 477 |
| 197 | curriculum evaluation | 36 | 1.3K | 20 | 14 |
| 198 | Analytical Chemistry | 56 | 1.3K | 1,121 | 1,282 |
| 199 | Organometallic chemistry | 69 | 1.3K | 178 | 202 |
| 200 | Brain | 46 | 1.3K | 651 | 751 |
| 201 | Plant Ecology | 37 | 1.2K | 412 | 512 |
| 202 | Sleep | 17 | 1.2K | 542 | 301 |
| 203 | Early Childhood Education | 50 | 1.2K | 40 | 36 |
| 204 | Molecular Genetics | 32 | 1.2K | 459 | 523 |
| 205 | Mental Disorders | 42 | 1.2K | 586 | 755 |
| 206 | Engineering | 24 | 1.2K | 1,546 | 811 |
| 207 | Agriculture | 21 | 1.2K | 650 | 430 |
| 208 | Population Genetics | 34 | 1.2K | 273 | 345 |
| 209 | Sleep Disorders | 16 | 1.2K | 553 | 302 |
| 210 | Forest Management | 36 | 1.2K | 169 | 204 |
| 211 | Immunity | 15 | 1.2K | 684 | 686 |
| 212 | Green Chemistry | 16 | 1.2K | 732 | 595 |
| 213 | alcoholism | 13 | 1.2K | 607 | 344 |
| 214 | Biocompatible Materials | 21 | 1.2K | 1,430 | 1,323 |
| 215 | Biogeography | 17 | 1.1K | 373 | 309 |
| 215 | Mental Health | 30 | 1.1K | 362 | 248 |
| 217 | Business | 41 | 1.1K | 463 | 749 |
| 218 | Water Purification | 27 | 1.1K | 218 | 104 |
| 218 | Water quality management | 27 | 1.1K | 431 | 249 |
| 220 | Memory | 31 | 1.1K | 461 | 460 |
| 221 | Dynamics | 16 | 1.1K | 649 | 151 |
| 222 | Forest Ecology | 35 | 1.1K | 181 | 236 |
| 223 | psychotherapy | 30 | 1.1K | 349 | 350 |
| 223 | Aquatic ecology | 40 | 1.1K | 88 | 100 |
| 225 | Human-Computer Interaction | 25 | 1.1K | 322 | 244 |
| 226 | Geology | 19 | 1.1K | 1,237 | 838 |
| 227 | Intellectual disability | 21 | 1.1K | 231 | 144 |
| 228 | Writing | 25 | 1.1K | 23 | 26 |
| 229 | Crystal growth | 48 | 1.1K | 84 | 168 |
| 230 | Child | 46 | 1.0K | 450 | 502 |
| 231 | Energy Policy | 6 | 1.0K | 1,914 | 938 |
| 232 | Attention | 31 | 1.0K | 402 | 402 |
| 233 | Agricultural Ecology | 14 | 1.0K | 360 | 292 |
| 234 | Geochemistry | 15 | 1.0K | 891 | 647 |
| 235 | Educational Technology | 50 | 1.0K | 142 | 263 |
| 236 | Molecules | 49 | 1.0K | 299 | 348 |
| 237 | Cerebral cortex | 19 | 1.0K | 312 | 276 |
| 238 | Visual Perception | 29 | 1.0K | 415 | 397 |
| 239 | Cognitive neuroscience | 24 | 1.0K | 292 | 357 |
| 240 | drug addiction | 11 | 995 | 513 | 298 |
| 241 | Mental Health Services | 21 | 989 | 351 | 223 |
| 242 | Dyslexia | 20 | 987 | 12 | 5 |
| 243 | Muscles | 16 | 977 | 256 | 200 |
| 244 | Vocational Education | 20 | 961 | 139 | 46 |
| 245 | environmental exposure | 34 | 960 | 346 | 459 |
| 245 | Earth Sciences | 17 | 960 | 1,418 | 937 |
| 247 | Environmental Toxicology | 46 | 959 | 384 | 734 |
| 247 | Computational Biology | 28 | 959 | 672 | 710 |
| 249 | Technology Assessment | 29 | 958 | 9 | 23 |
| 249 | Entomology | 33 | 958 | 589 | 440 |
| 251 | Optics | 52 | 956 | 1,135 | 1,078 |
| 252 | Signal Processing | 29 | 951 | 816 | 787 |
| 253 | Geriatric Psychiatry | 17 | 949 | 303 | 153 |
| 254 | violence | 24 | 943 | 267 | 236 |
| 255 | Linguistics | 51 | 942 | 232 | 256 |
| 256 | Photochemistry | 35 | 939 | 302 | 357 |
| 257 | polymerization | 28 | 938 | 1,427 | 1,197 |
| 258 | Bioinorganic chemistry | 49 | 935 | 230 | 311 |
| 259 | Applied Linguistics | 42 | 923 | 39 | 55 |
| 260 | Biodiversity | 32 | 922 | 515 | 624 |
| 260 | Cognition | 38 | 922 | 435 | 550 |
| 262 | Biomass | 20 | 920 | 99 | 120 |
| 263 | Internet of Things | 17 | 919 | 387 | 303 |
| 264 | Geometry | 91 | 917 | 65 | 91 |
| 265 | Fisheries | 49 | 912 | 253 | 387 |
| 266 | Technology | 39 | 904 | 965 | 1,003 |
| 267 | Endocrinology | 23 | 903 | 913 | 974 |
| 268 | Bifurcation Theory | 3 | 902 | 273 | 17 |
| 269 | Mineralogy | 8 | 884 | 802 | 413 |
| 269 | Organometallic compounds | 29 | 884 | 332 | 326 |
| 271 | Spine | 14 | 880 | 254 | 189 |
| 272 | Metabolic diseases | 20 | 877 | 740 | 803 |
| 273 | Happiness | 11 | 869 | 98 | 38 |
| 273 | Product life cycle | 6 | 869 | 151 | 52 |
| 273 | green products | 6 | 869 | 138 | 52 |
| 276 | ecosystem | 19 | 868 | 445 | 446 |
| 277 | Meteorology | 17 | 865 | 861 | 768 |
| 278 | Petrology | 6 | 838 | 657 | 379 |
| 279 | Cardiovascular diseases | 23 | 837 | 492 | 426 |
| 280 | Sustainable Engineering | 10 | 810 | 868 | 559 |
| 281 | Social Change | 14 | 798 | 348 | 360 |
| 281 | nuclear magnetic resonance spectroscopy | 73 | 798 | 19 | 120 |
| 283 | pain | 15 | 791 | 514 | 457 |
| 284 | risk factors | 21 | 788 | 162 | 164 |
| 285 | Microelectronics | 21 | 777 | 628 | 689 |
| 285 | Molecular structure | 30 | 777 | 631 | 674 |
| 287 | Sociolinguistics | 37 | 776 | 29 | 52 |
| 287 | Magnetic Resonance Spectroscopy | 67 | 776 | 131 | 259 |
| 289 | Light | 20 | 764 | 269 | 481 |
| 290 | Allergy | 6 | 759 | 686 | 514 |
| 291 | Cancer | 25 | 756 | 983 | 1,144 |
| 292 | Molecular evolution | 11 | 754 | 686 | 530 |
| 292 | Soil fertility | 19 | 754 | 56 | 84 |
| 294 | Aggression | 17 | 752 | 124 | 124 |
| 295 | Child welfare | 31 | 750 | 233 | 218 |
| 296 | Therapeutics | 17 | 747 | 599 | 556 |
| 297 | Renewable Energy Sources | 14 | 743 | 1,241 | 1,374 |
| 298 | forest policy | 15 | 740 | 97 | 54 |
| 299 | Genomics | 34 | 729 | 790 | 1,004 |
| 300 | Information Systems | 24 | 723 | 291 | 296 |
| 301 | miniaturization | 12 | 720 | 870 | 786 |
| 302 | NMR | 61 | 718 | 7 | 28 |
| 303 | language | 25 | 716 | 191 | 234 |
| 304 | Speech Disorders | 31 | 708 | 260 | 311 |
| 305 | magnetic resonance | 60 | 701 | 5 | 36 |
| 306 | Health promotion | 17 | 700 | 367 | 281 |
| 307 | Recombinant DNA | 6 | 698 | 1,013 | 392 |
| 308 | Health | 32 | 694 | 488 | 583 |
| 309 | probabilities | 53 | 692 | 223 | 252 |
| 310 | Fuzzy systems | 8 | 689 | 977 | 203 |
| 311 | Molecular cloning | 5 | 687 | 1,058 | 367 |
| 311 | Genetic recombination | 5 | 687 | 1,037 | 364 |
| 313 | Geophysics | 25 | 684 | 1,255 | 1,283 |
| 314 | counseling | 20 | 683 | 443 | 360 |
| 315 | Particle Physics | 10 | 677 | 81 | 71 |
| 315 | Elementary particles | 10 | 677 | 47 | 65 |
| 317 | Calculus of Variations | 55 | 671 | 22 | 54 |
| 318 | cultural policy | 33 | 666 | 28 | 23 |
| 318 | human development | 22 | 666 | 205 | 261 |
| 320 | coal | 19 | 659 | 567 | 646 |
| 321 | Swarm Intelligence | 3 | 654 | 283 | 67 |
| 322 | Statistics | 40 | 653 | 730 | 739 |
| 323 | Written communication | 5 | 649 | 54 | 9 |
| 324 | Speech | 28 | 643 | 208 | 307 |
| 325 | Ecosystem management | 23 | 641 | 119 | 195 |
| 326 | Chemical industry | 10 | 617 | 649 | 232 |
| 327 | Physical organic chemistry | 34 | 612 | 252 | 396 |
| 327 | Bioinformatics | 19 | 612 | 728 | 748 |
| 329 | Social work | 30 | 607 | 365 | 335 |
| 330 | energy conservation | 3 | 606 | 2,049 | 930 |
| 331 | Computer Science | 16 | 604 | 768 | 386 |
| 332 | Human Geography | 5 | 601 | 819 | 307 |
| 333 | innovation | 12 | 600 | 220 | 324 |
| 334 | Virulence | 13 | 596 | 456 | 592 |
| 335 | Consumer education | 10 | 591 | 90 | 78 |
| 336 | Pharmacology | 21 | 586 | 1,864 | 1,904 |
| 336 | Software Engineering | 17 | 586 | 351 | 319 |
| 336 | United Kingdom | 16 | 586 | 549 | 561 |
| 339 | Developing countries | 31 | 583 | 518 | 709 |
| 340 | disabilities | 24 | 580 | 136 | 153 |
| 341 | Behavioral Genetics | 12 | 573 | 84 | 81 |
| 342 | movement | 16 | 572 | 57 | 62 |
| 343 | Hydrology | 29 | 571 | 685 | 894 |
| 344 | radioactive waste | 15 | 570 | 201 | 380 |
| 344 | industrial waste | 15 | 570 | 222 | 381 |
| 344 | Hazardous waste | 15 | 570 | 270 | 407 |
| 347 | Food | 14 | 567 | 1,452 | 1,353 |
| 348 | industrial relations | 39 | 564 | 129 | 200 |
| 349 | analysis | 19 | 563 | 94 | 128 |
| 349 | Mechanics | 19 | 563 | 406 | 309 |
| 351 | Sarcopenia | 8 | 562 | 150 | 150 |
| 352 | Plant physiology | 13 | 561 | 1,025 | 1,019 |
| 353 | Landscape Ecology | 11 | 560 | 160 | 151 |
| 354 | feeding behavior | 12 | 558 | 298 | 266 |
| 355 | wood | 16 | 540 | 150 | 100 |
| 356 | Ergonomics | 16 | 530 | 344 | 265 |
| 356 | Nanostructures | 21 | 530 | 628 | 843 |
| 358 | Differential Equations | 18 | 526 | 366 | 275 |
| 359 | Econometrics | 17 | 522 | 527 | 457 |
| 360 | Labor Economics | 30 | 521 | 44 | 132 |
| 361 | disease vectors | 14 | 515 | 347 | 290 |
| 362 | Nuclear Chemistry | 8 | 512 | 624 | 214 |
| 363 | Rural Development | 16 | 510 | 110 | 144 |
| 364 | Environmental Microbiology | 14 | 507 | 529 | 691 |
| 365 | Long-Term Care | 10 | 504 | 221 | 207 |
| 365 | Long-term care facilities | 10 | 504 | 219 | 207 |
| 365 | Marriage | 11 | 504 | 200 | 123 |
| 368 | Occupational Health | 16 | 503 | 312 | 261 |
| 369 | Radiochemistry | 8 | 502 | 555 | 177 |
| 369 | Informatics | 8 | 502 | 473 | 274 |
| 371 | locomotion | 21 | 501 | 121 | 197 |
| 371 | posture | 21 | 501 | 121 | 197 |
| 371 | gait | 21 | 501 | 121 | 197 |
| 371 | walking | 21 | 501 | 121 | 197 |
| 375 | Elderly | 43 | 500 | 232 | 205 |
| 376 | Health Policy | 20 | 496 | 721 | 737 |
| 376 | International Finance | 14 | 496 | 760 | 633 |
| 376 | Culture | 40 | 496 | 174 | 217 |
| 379 | Public opinion | 11 | 494 | 160 | 111 |
| 380 | Strategic planning | 9 | 489 | 337 | 239 |
| 380 | Creativity | 6 | 489 | 123 | 54 |
| 382 | Intercultural Communication | 17 | 488 | 57 | 84 |
| 383 | Philosophy | 67 | 487 | 271 | 319 |
| 383 | finance | 11 | 487 | 1,287 | 896 |
| 385 | Sustainable Development | 17 | 483 | 665 | 861 |
| 386 | Neurochemistry | 13 | 481 | 1,078 | 1,020 |
| 386 | Appetite | 9 | 481 | 303 | 260 |
| 388 | Photonics | 7 | 475 | 1,233 | 923 |
| 388 | Psychometrics | 17 | 475 | 147 | 175 |
| 390 | Neurolinguistics | 19 | 471 | 96 | 189 |
| 390 | plant communities | 16 | 471 | 423 | 599 |
| 392 | Nuclear Energy | 6 | 467 | 655 | 246 |
| 393 | Biogeochemistry | 15 | 465 | 439 | 580 |
| 394 | Digital Media | 17 | 463 | 19 | 34 |
| 395 | Recycling | 4 | 462 | 484 | 367 |
| 396 | Plant diseases | 12 | 461 | 976 | 741 |
| 397 | Discourse Analysis | 25 | 460 | 31 | 93 |
| 397 | sports injuries | 14 | 460 | 136 | 88 |
| 399 | family counseling | 15 | 459 | 16 | 7 |
| 400 | Steroids | 15 | 454 | 337 | 323 |
| 400 | software | 17 | 454 | 280 | 407 |
| 402 | Atomic spectroscopy | 25 | 453 | 302 | 377 |
| 403 | Humanities | 24 | 448 | 349 | 286 |
| 404 | Land Use Planning | 10 | 447 | 135 | 147 |
| 405 | Tourism | 11 | 443 | 800 | 835 |
| 405 | Social problems | 14 | 443 | 211 | 264 |
| 405 | recreation | 15 | 443 | 233 | 166 |
| 408 | Qualitative Research | 20 | 441 | 117 | 159 |
| 409 | infection | 7 | 439 | 909 | 704 |
| 410 | Pharmaceutical Chemistry | 23 | 438 | 1,323 | 1,608 |
| 411 | Medical Laboratory Science | 10 | 437 | 1,009 | 1,003 |
| 411 | cell physiology | 5 | 437 | 1,007 | 769 |
| 413 | sustainability | 12 | 435 | 307 | 440 |
| 414 | environmental indicators | 16 | 434 | 344 | 561 |
| 415 | occupational diseases | 14 | 433 | 265 | 298 |
| 416 | Music Therapy | 21 | 426 | 22 | 24 |
| 416 | Photobiology | 16 | 426 | 409 | 478 |
| 418 | Ultrasonics | 6 | 425 | 829 | 552 |
| 419 | clay | 9 | 424 | 387 | 362 |
| 420 | Developmental Disabilities | 17 | 423 | 344 | 457 |
| 420 | disease outbreaks | 8 | 423 | 262 | 211 |
| 420 | Epidemics | 8 | 423 | 249 | 211 |
| 423 | Pediatrics | 19 | 422 | 771 | 1,018 |
| 423 | Fishery resources | 7 | 422 | 315 | 203 |
| 425 | Personality Assessment | 9 | 420 | 289 | 289 |
| 426 | Economic History | 36 | 419 | 869 | 1,113 |
| 426 | calcification | 10 | 419 | 223 | 221 |
| 428 | Neuromuscular diseases | 8 | 415 | 310 | 231 |
| 429 | Cellulose | 9 | 413 | 270 | 207 |
| 430 | behavior therapy | 10 | 407 | 413 | 372 |
| 431 | Engineering Mathematics | 30 | 404 | 440 | 577 |
| 431 | Plasma devices | 17 | 404 | 89 | 122 |
| 433 | Fluid Mechanics | 10 | 403 | 828 | 623 |
| 433 | commerce | 21 | 403 | 397 | 648 |
| 433 | Mental illness | 16 | 403 | 711 | 952 |
| 436 | Automation | 10 | 401 | 1,257 | 1,132 |
| 437 | Multilingualism | 18 | 399 | 20 | 52 |
| 437 | animals | 28 | 399 | 247 | 338 |
| 439 | Inclusive Education | 11 | 398 | 35 | 31 |
| 439 | Integration | 11 | 398 | 34 | 31 |
| 441 | International Relations | 20 | 393 | 340 | 317 |
| 442 | Social policy | 13 | 391 | 406 | 299 |
| 443 | Cardiovascular system | 9 | 390 | 734 | 917 |
| 444 | Histology | 14 | 386 | 804 | 853 |
| 445 | Public Policy | 22 | 382 | 498 | 738 |
| 445 | Freshwater invertebrates | 10 | 382 | 76 | 90 |
| 447 | Journalism | 24 | 380 | 95 | 117 |
| 447 | energy resources | 4 | 380 | 1,155 | 952 |
| 449 | Social Issues | 10 | 375 | 89 | 101 |
| 449 | Soft Condensed Matter | 16 | 375 | 423 | 497 |
| 451 | Language Policy | 17 | 374 | 4 | 8 |
| 451 | Nonlinear functional analysis | 25 | 374 | 256 | 365 |
| 453 | economic policy | 22 | 373 | 811 | 767 |
| 454 | Marriage counseling | 7 | 372 | 166 | 109 |
| 455 | Cybernetics | 11 | 370 | 808 | 780 |
| 455 | System analysis | 20 | 370 | 876 | 1,022 |
| 457 | Telecommunication Systems | 19 | 368 | 518 | 536 |
| 458 | Transport | 5 | 366 | 421 | 265 |
| 459 | pain management | 10 | 364 | 248 | 204 |
| 460 | Language Acquisition | 7 | 363 | 165 | 67 |
| 461 | Bioenergetics | 4 | 359 | 700 | 424 |
| 461 | behavior modification | 4 | 359 | 341 | 252 |
| 463 | Feminism | 24 | 357 | 96 | 150 |
| 463 | Ornithology | 18 | 357 | 334 | 331 |
| 465 | Political Science | 28 | 356 | 528 | 623 |
| 465 | Insects | 13 | 356 | 615 | 527 |
| 467 | Palynology | 7 | 354 | 82 | 19 |
| 468 | amino acids | 5 | 352 | 393 | 201 |
| 469 | collagen | 3 | 351 | 243 | 158 |
| 470 | Emotions | 9 | 350 | 310 | 365 |
| 471 | child mental health | 11 | 349 | 187 | 155 |
| 472 | Hearing | 16 | 344 | 241 | 253 |
| 473 | gene therapy | 7 | 343 | 575 | 550 |
| 473 | Genetic therapy | 8 | 343 | 565 | 541 |
| 475 | Mass Spectrometry | 21 | 342 | 363 | 510 |
| 476 | Neurobiology | 11 | 341 | 813 | 962 |
| 477 | consumers | 6 | 339 | 207 | 150 |
| 478 | educational innovations | 9 | 338 | 213 | 193 |
| 479 | Language and Education | 15 | 337 | 5 | 13 |
| 480 | Telecommunications | 7 | 335 | 414 | 143 |
| 481 | Host-parasite interactions | 7 | 333 | 683 | 813 |
| 482 | Pathology | 20 | 328 | 697 | 1,006 |
| 483 | Surface properties | 3 | 327 | 1,196 | 665 |
| 484 | school-to-work transition | 8 | 325 | 17 | 15 |
| 485 | Special Education | 17 | 323 | 257 | 268 |
| 485 | Optical materials | 14 | 323 | 1,288 | 1,563 |
| 487 | Plants | 5 | 319 | 1,580 | 1,137 |
| 488 | Environmental Economics | 6 | 318 | 189 | 116 |
| 489 | proteins | 13 | 316 | 908 | 959 |
| 490 | Microorganisms | 5 | 309 | 749 | 693 |
| 491 | adulthood | 12 | 307 | 8 | 16 |
| 492 | Hypertension | 2 | 306 | 1,332 | 964 |
| 493 | Pharmacognosy | 11 | 304 | 937 | 1,131 |
| 493 | natural products | 11 | 304 | 923 | 791 |
| 493 | Chronic diseases | 9 | 304 | 340 | 407 |
| 496 | Intelligent Transportation Systems | 10 | 303 | 549 | 656 |
| 496 | Electronics | 13 | 303 | 1,704 | 1,536 |
| 498 | Sea | 3 | 302 | 503 | 234 |
| 499 | Cytogenetics | 7 | 301 | 784 | 815 |
| 499 | Substance Abuse | 10 | 301 | 708 | 640 |
| 499 | Diabetes | 8 | 301 | 1,065 | 1,100 |
| 502 | Extracellular matrix | 2 | 300 | 289 | 163 |
| 503 | Population | 13 | 298 | 329 | 428 |
| 503 | children | 11 | 298 | 183 | 248 |
| 505 | Venture Capital | 1 | 297 | 502 | 333 |
| 505 | Australia | 21 | 297 | 499 | 682 |
| 507 | plant molecular biology | 2 | 295 | 1,610 | 1,052 |
| 508 | Exercise therapy | 3 | 293 | 457 | 85 |
| 508 | thinking | 4 | 293 | 231 | 92 |
| 510 | Patient education | 9 | 292 | 270 | 301 |
| 511 | Well-being | 14 | 290 | 11 | 42 |
| 512 | Neural circuitry | 18 | 289 | 727 | 1,178 |
| 513 | Clinical Psychology | 19 | 287 | 454 | 695 |
| 514 | consumer behavior | 4 | 286 | 470 | 319 |
| 514 | Crisis management | 9 | 286 | 20 | 31 |
| 514 | Human Resources | 8 | 286 | 209 | 283 |
| 517 | Alzheimer's disease | 7 | 283 | 840 | 548 |
| 518 | Hematology | 3 | 282 | 1,522 | 1,086 |
| 518 | Raman spectroscopy | 8 | 282 | 423 | 342 |
| 520 | Online journalism | 6 | 280 | 43 | 52 |
| 521 | Planets | 7 | 278 | 939 | 982 |
| 522 | Bioremediation | 4 | 277 | 708 | 395 |
| 523 | Biomolecules | 3 | 276 | 443 | 284 |
| 524 | Consumer Protection | 3 | 274 | 183 | 78 |
| 524 | organization | 15 | 274 | 282 | 578 |
| 526 | nucleic acids | 6 | 273 | 1,064 | 1,072 |
| 527 | Criminal psychology | 10 | 271 | 420 | 402 |
| 527 | Environmental Education | 10 | 271 | 103 | 137 |
| 527 | environmental auditing | 5 | 271 | 165 | 201 |
| 527 | arthritis | 3 | 271 | 871 | 697 |
| 531 | Nanoparticles | 10 | 270 | 1,014 | 1,126 |
| 531 | Menopause | 8 | 270 | 134 | 113 |
| 533 | Nursing | 13 | 268 | 864 | 740 |
| 533 | Composite Materials | 11 | 268 | 1,429 | 1,731 |
| 535 | Economic Development | 6 | 265 | 1,063 | 962 |
| 535 | Diabetes mellitus | 7 | 265 | 1,082 | 1,140 |
| 537 | dietary supplements | 8 | 262 | 397 | 428 |
| 537 | Communication in marketing | 11 | 262 | 22 | 50 |
| 539 | Birds | 15 | 261 | 477 | 476 |
| 540 | Algorithms | 10 | 259 | 318 | 244 |
| 541 | Chromatography | 15 | 258 | 631 | 743 |
| 541 | Chromatographic analysis | 15 | 258 | 752 | 828 |
| 543 | Magnetic Materials | 9 | 257 | 924 | 874 |
| 544 | child behavior | 8 | 256 | 195 | 256 |
| 545 | brain mapping | 9 | 254 | 319 | 445 |
| 546 | Pharmaceutical Technology | 11 | 253 | 769 | 913 |
| 546 | Social welfare | 10 | 253 | 256 | 219 |
| 546 | technical education | 11 | 253 | 254 | 239 |
| 549 | Chronobiology | 12 | 251 | 123 | 176 |
| 549 | biological clocks | 12 | 251 | 123 | 176 |
| 549 | circadian rhythm | 12 | 251 | 123 | 176 |
| 549 | biological rhythms | 12 | 251 | 113 | 173 |
| 553 | Clinical Chemistry | 10 | 250 | 1,329 | 1,505 |
| 554 | biopolymers | 11 | 248 | 574 | 670 |
| 554 | Structure-activity relationship | 1 | 248 | 500 | 145 |
| 556 | technology transfer | 2 | 247 | 349 | 129 |
| 556 | Feminist psychology | 6 | 247 | 33 | 29 |
| 558 | drugs | 5 | 246 | 1,447 | 1,069 |
| 559 | Radiation | 17 | 245 | 857 | 1,000 |
| 560 | voice | 7 | 243 | 269 | 194 |
| 560 | Cosmochemistry | 7 | 243 | 553 | 550 |
| 562 | Social interaction | 17 | 242 | 66 | 189 |
| 563 | Chemical Ecology | 8 | 240 | 281 | 339 |
| 563 | Language Development | 5 | 240 | 56 | 29 |
| 565 | Circadian rhythms | 11 | 239 | 91 | 165 |
| 566 | Action Research | 6 | 238 | 119 | 49 |
| 566 | Educational evaluation | 8 | 238 | 64 | 51 |
| 568 | Orthopedics | 5 | 237 | 1,004 | 748 |
| 568 | Surface-Active Agents | 2 | 237 | 1,365 | 746 |
| 568 | Infections | 5 | 237 | 747 | 756 |
| 568 | Crystallography | 32 | 237 | 441 | 542 |
| 572 | Distance Education | 17 | 236 | 54 | 172 |
| 572 | Career development | 19 | 236 | 62 | 129 |
| 574 | Dance therapy | 8 | 235 | 52 | 22 |
| 575 | Remote Sensing | 22 | 233 | 407 | 640 |
| 575 | forestry | 11 | 233 | 84 | 102 |
| 577 | Atmospheric Physics | 10 | 232 | 825 | 991 |
| 577 | Corporate Social Responsibility | 2 | 232 | 401 | 251 |
| 579 | medical education | 9 | 231 | 902 | 856 |
| 580 | Systems Biology | 13 | 229 | 624 | 844 |
| 580 | Nutrition physiology | 7 | 229 | 418 | 467 |
| 582 | Molecular Spectroscopy | 16 | 228 | 732 | 1,034 |
| 583 | Sonochemistry | 3 | 227 | 666 | 556 |
| 584 | Psychosomatic Medicine | 8 | 226 | 411 | 511 |
| 585 | Architecture | 4 | 225 | 500 | 174 |
| 585 | Database Management | 8 | 225 | 459 | 460 |
| 587 | Human physiology | 3 | 224 | 89 | 20 |
| 588 | Paleoclimatology | 13 | 223 | 505 | 756 |
| 588 | Multivariate Analysis | 9 | 223 | 275 | 262 |
| 590 | Art Therapy | 6 | 222 | 97 | 38 |
| 590 | Radio | 6 | 222 | 983 | 907 |
| 592 | Eating Disorders | 9 | 221 | 431 | 493 |
| 592 | Dementia | 8 | 221 | 781 | 573 |
| 594 | Popular culture | 19 | 220 | 94 | 87 |
| 594 | Carbon | 13 | 220 | 562 | 1,106 |
| 596 | global environmental change | 6 | 218 | 501 | 631 |
| 597 | pheromones | 6 | 215 | 306 | 345 |
| 598 | Biosensors | 4 | 214 | 1,095 | 1,147 |
| 598 | Adult Education | 21 | 214 | 117 | 180 |
| 598 | Socialism | 7 | 214 | 103 | 67 |
| 598 | Sound | 3 | 214 | 1,058 | 470 |
| 598 | Human biology | 8 | 214 | 326 | 269 |
| 603 | Immunology | 15 | 213 | 1,263 | 1,848 |
| 603 | rivers | 4 | 213 | 228 | 138 |
| 605 | Stress | 5 | 212 | 158 | 129 |
| 606 | Restoration Ecology | 8 | 209 | 203 | 254 |
| 607 | Robotics | 9 | 208 | 1,014 | 1,016 |
| 607 | Developmental Biology | 6 | 208 | 1,240 | 1,338 |
| 607 | catalytic activity | 8 | 208 | 388 | 482 |
| 610 | Computer Literacy | 5 | 204 | 120 | 114 |
| 611 | Municipal Engineering | 14 | 202 | 34 | 140 |
| 611 | Wildlife management | 9 | 202 | 306 | 271 |
| 613 | Fishery management | 11 | 201 | 356 | 421 |
| 613 | protein | 8 | 201 | 679 | 714 |
| 615 | Pediatric Neurology | 2 | 200 | 828 | 748 |
| 615 | Stochastic Processes | 14 | 200 | 315 | 377 |
| 617 | Environmental Law | 2 | 198 | 1,243 | 1,032 |
| 617 | Ultrasound | 3 | 198 | 700 | 428 |
| 619 | Audiology | 9 | 197 | 419 | 452 |
| 619 | Supramolecular chemistry | 16 | 197 | 25 | 40 |
| 621 | Public Relations | 9 | 196 | 173 | 202 |
| 621 | Building | 3 | 196 | 559 | 247 |
| 621 | Literacy | 7 | 196 | 167 | 114 |
| 624 | Photogrammetry | 18 | 195 | 218 | 136 |
| 625 | Microscopy | 15 | 192 | 492 | 660 |
| 626 | Psychopharmacology | 11 | 190 | 697 | 998 |
| 626 | Quantum theory | 14 | 190 | 431 | 573 |
| 628 | Biodegradation | 2 | 189 | 958 | 529 |
| 628 | Industrial Policy | 7 | 189 | 290 | 307 |
| 628 | Video Games | 5 | 189 | 9 | 8 |
| 631 | Communication and Culture | 16 | 188 | 36 | 78 |
| 631 | Continuing Education | 16 | 188 | 110 | 132 |
| 631 | Superconductors | 16 | 188 | 369 | 408 |
| 631 | Bacteriology | 8 | 188 | 1,043 | 1,354 |
| 631 | Detectors | 4 | 188 | 1,326 | 932 |
| 636 | Welfare Economics | 5 | 187 | 327 | 278 |
| 637 | Proteomics | 4 | 186 | 857 | 778 |
| 637 | Evolutionary Genetics | 6 | 186 | 374 | 365 |
| 637 | Molecular Epidemiology | 6 | 186 | 374 | 365 |
| 637 | Mass Media | 16 | 186 | 227 | 235 |
| 637 | supercritical fluids | 3 | 186 | 391 | 273 |
| 637 | Tropical Medicine | 11 | 186 | 841 | 960 |
| 643 | Decision making | 7 | 185 | 885 | 906 |
| 644 | Ophthalmology | 6 | 184 | 1,107 | 1,042 |
| 644 | city planning | 13 | 184 | 701 | 980 |
| 646 | Visual Literacy | 3 | 183 | 18 | 6 |
| 647 | Cognitive Psychology | 12 | 182 | 127 | 200 |
| 647 | Feeding and Eating Disorders | 7 | 182 | 482 | 521 |
| 647 | health planning | 12 | 182 | 1,064 | 1,269 |
| 650 | health behavior | 8 | 181 | 492 | 603 |
| 650 | Economic planning | 3 | 181 | 515 | 282 |
| 652 | Corporate governance | 2 | 180 | 792 | 415 |
| 652 | Water Microbiology | 1 | 180 | 891 | 255 |
| 652 | Fouling | 1 | 180 | 459 | 168 |
| 655 | Proteome | 4 | 179 | 907 | 856 |
| 656 | Computer Graphics | 9 | 178 | 975 | 1,038 |
| 656 | industrial hygiene | 9 | 178 | 455 | 349 |
| 656 | foreign exchange | 4 | 178 | 298 | 272 |
| 659 | Manufacturing Processes | 4 | 176 | 1,929 | 1,488 |
| 659 | Image Processing | 10 | 176 | 1,244 | 1,528 |
| 661 | Zoonoses | 4 | 174 | 220 | 177 |
| 662 | Psychoneuroimmunology | 3 | 173 | 548 | 566 |
| 662 | Combustion | 2 | 173 | 1,380 | 825 |
| 662 | Neuroimmunology | 3 | 173 | 604 | 621 |
| 665 | Mobile Computing | 12 | 172 | 466 | 689 |
| 666 | Primary health care | 13 | 170 | 691 | 1,024 |
| 666 | Gene expression regulation | 7 | 170 | 532 | 653 |
| 668 | Schizophrenia | 1 | 169 | 1,217 | 730 |
| 669 | Structural optimization | 6 | 168 | 230 | 245 |
| 669 | Enteral nutrition | 5 | 168 | 558 | 648 |
| 669 | Parenteral nutrition | 5 | 168 | 647 | 740 |
| 672 | Language and Culture | 9 | 167 | 32 | 31 |
| 672 | Calorimetry | 6 | 167 | 860 | 644 |
| 672 | Thermal analysis | 6 | 167 | 860 | 644 |
| 675 | International Education | 9 | 166 | 62 | 118 |
| 676 | Signal Transduction | 3 | 165 | 1,253 | 1,126 |
| 677 | Medical Technology | 11 | 163 | 689 | 1,033 |
| 678 | Zeolites | 4 | 162 | 828 | 821 |
| 679 | Environmental Geology | 6 | 161 | 1,166 | 1,215 |
| 679 | Biometrics | 15 | 161 | 427 | 641 |
| 679 | Thorax | 1 | 161 | 555 | 320 |
| 682 | Computational Intelligence | 1 | 160 | 1,231 | 347 |
| 682 | Organic Geochemistry | 2 | 160 | 430 | 332 |
| 684 | Phonetics | 3 | 158 | 318 | 220 |
| 684 | Simulation Methods | 6 | 158 | 650 | 558 |
| 684 | Medical innovations | 3 | 158 | 831 | 997 |
| 684 | drug development | 3 | 158 | 820 | 891 |
| 688 | Land use | 5 | 157 | 852 | 905 |
| 688 | Ferroelectricity | 3 | 157 | 999 | 457 |
| 688 | Radio frequency | 2 | 157 | 524 | 286 |
| 691 | Information Retrieval | 3 | 156 | 458 | 331 |
| 691 | mental health promotion | 5 | 156 | 100 | 109 |
| 691 | water supply | 4 | 156 | 721 | 730 |
| 691 | Vision | 6 | 156 | 450 | 499 |
| 691 | mammals | 6 | 156 | 680 | 608 |
| 696 | Game Theory | 5 | 155 | 413 | 316 |
| 697 | Solitons | 3 | 154 | 1,254 | 784 |
| 697 | Fractals | 3 | 154 | 1,264 | 789 |
| 697 | Chaos | 3 | 154 | 1,254 | 784 |
| 700 | Computational Chemistry | 5 | 153 | 507 | 517 |
| 700 | Research Design | 7 | 153 | 682 | 838 |
| 700 | Smoking | 4 | 153 | 581 | 582 |
| 703 | Metallurgy | 4 | 152 | 1,871 | 1,379 |
| 703 | Drug design | 5 | 152 | 1,118 | 1,141 |
| 703 | Radioisotopes | 12 | 152 | 458 | 523 |
| 703 | Plant cells | 2 | 152 | 1,092 | 1,166 |
| 707 | Microwaves | 2 | 151 | 1,436 | 759 |
| 708 | School Psychology | 5 | 150 | 338 | 357 |
| 708 | Social Entrepreneurship | 3 | 150 | 83 | 59 |
| 708 | Cell death | 3 | 150 | 970 | 1,010 |
| 708 | Genes | 6 | 150 | 726 | 755 |
| 712 | Anatomy | 5 | 148 | 1,433 | 1,270 |
| 712 | Phenomenology | 9 | 148 | 72 | 60 |
| 712 | Educational Sociology | 9 | 148 | 136 | 199 |
| 712 | Hormones | 4 | 148 | 957 | 942 |
| 712 | synthesis | 13 | 148 | 395 | 504 |
| 717 | Microbial Metabolism | 3 | 147 | 154 | 157 |
| 718 | Feminist theory | 85 | 146 | 1 | 96 |
| 718 | Export Marketing | 2 | 146 | 305 | 222 |
| 720 | Porous materials | 7 | 145 | 423 | 382 |
| 720 | Asia | 8 | 145 | 1,699 | 1,587 |
| 720 | gene mapping | 9 | 145 | 984 | 1,545 |
| 723 | Ethnology | 29 | 144 | 309 | 756 |
| 723 | child abuse | 4 | 144 | 662 | 675 |
| 725 | Forensic Psychiatry | 5 | 143 | 406 | 337 |
| 725 | Criminal behavior | 5 | 143 | 107 | 99 |
| 727 | Philosophy of Mind | 8 | 142 | 107 | 143 |
| 728 | Soil Science | 7 | 140 | 1,215 | 1,483 |
| 728 | Epigenetics | 5 | 140 | 140 | 117 |
| 728 | Epigenomics | 5 | 140 | 138 | 115 |
| 728 | sports administration | 4 | 140 | 245 | 191 |
| 728 | Oxidation-reduction | 2 | 140 | 862 | 870 |
| 733 | Industrial Engineering | 5 | 139 | 1,396 | 1,409 |
| 733 | Oncology | 5 | 139 | 1,398 | 1,815 |
| 733 | Electrophoresis | 5 | 139 | 1,220 | 1,186 |
| 736 | nuclear magnetic resonance | 18 | 138 | 386 | 623 |
| 737 | lasers | 7 | 137 | 1,474 | 1,404 |
| 738 | Organizational Sociology | 4 | 136 | 305 | 286 |
| 738 | Bilingualism | 3 | 136 | 149 | 101 |
| 740 | Fluid Dynamics | 4 | 134 | 953 | 800 |
| 740 | Administration | 6 | 134 | 25 | 30 |
| 742 | Climatology | 4 | 133 | 1,485 | 1,436 |
| 743 | motivation | 2 | 130 | 453 | 313 |
| 743 | Emotion | 2 | 130 | 281 | 241 |
| 743 | actuators | 6 | 130 | 1,575 | 1,902 |
| 743 | transducers | 6 | 130 | 1,575 | 1,902 |
| 747 | Translation | 1 | 129 | 300 | 40 |
| 748 | France | 5 | 128 | 300 | 158 |
| 749 | Geomorphology | 6 | 127 | 988 | 1,274 |
| 749 | Analytical Biochemistry | 4 | 127 | 1,461 | 1,256 |
| 749 | Superconductivity | 7 | 127 | 264 | 250 |
| 749 | Solar System | 3 | 127 | 710 | 598 |
| 753 | Software Maintenance | 10 | 126 | 28 | 75 |
| 753 | Environmental Psychology | 2 | 126 | 463 | 448 |
| 755 | Paleoecology | 8 | 125 | 663 | 877 |
| 755 | health services accessibility | 3 | 125 | 886 | 676 |
| 755 | Genetic regulation | 4 | 125 | 844 | 927 |
| 755 | cultural pluralism | 14 | 125 | 78 | 231 |
| 759 | Medical Physics | 8 | 124 | 904 | 1,207 |
| 759 | Solar Energy | 3 | 124 | 1,703 | 1,649 |
| 759 | Cross-Cultural Studies | 5 | 124 | 489 | 501 |
| 759 | Chromosome mapping | 8 | 124 | 966 | 1,490 |
| 759 | school sports | 3 | 124 | 126 | 106 |
| 759 | Development | 6 | 124 | 514 | 773 |
| 765 | Neuropsychiatry | 3 | 123 | 767 | 646 |
| 765 | Regional Economics | 8 | 123 | 219 | 346 |
| 765 | Educational Anthropology | 2 | 123 | 139 | 60 |
| 765 | psychophysics | 6 | 123 | 241 | 210 |
| 769 | Information Theory | 8 | 122 | 874 | 1,016 |
| 770 | Sedimentology | 6 | 121 | 398 | 529 |
| 770 | Regional Development | 2 | 121 | 335 | 216 |
| 770 | Development planning | 2 | 121 | 292 | 197 |
| 770 | labor | 1 | 121 | 641 | 220 |
| 770 | working class | 1 | 121 | 344 | 202 |
| 775 | Surgery | 2 | 120 | 1,452 | 1,279 |
| 775 | Laser therapy | 6 | 120 | 240 | 220 |
| 777 | Demography | 8 | 119 | 340 | 541 |
| 777 | genre | 7 | 119 | 49 | 75 |
| 777 | Self | 5 | 119 | 108 | 156 |
| 780 | food technology | 3 | 118 | 2,438 | 2,230 |
| 780 | cell interaction | 4 | 118 | 817 | 975 |
| 780 | Classroom Environment | 5 | 118 | 20 | 43 |
| 783 | Systems Analysis | 9 | 117 | 589 | 827 |
| 784 | Technological Innovations | 6 | 115 | 697 | 924 |
| 785 | Dermatology | 5 | 114 | 1,102 | 1,095 |
| 785 | Leadership | 9 | 114 | 217 | 600 |
| 785 | Randomized Controlled Trials | 6 | 114 | 640 | 584 |
| 785 | Women's health | 6 | 114 | 774 | 896 |
| 785 | eugenics | 4 | 114 | 451 | 417 |
| 785 | Phylogeny | 3 | 114 | 861 | 939 |
| 791 | Atmospheric Chemistry | 6 | 113 | 607 | 904 |
| 792 | Morphology | 2 | 112 | 1,095 | 553 |
| 792 | Disability Studies | 14 | 112 | 31 | 144 |
| 794 | Group decision making | 4 | 111 | 412 | 400 |
| 794 | telemarketing | 3 | 111 | 85 | 106 |
| 794 | Bacteriophages | 2 | 111 | 36 | 29 |
| 797 | Radiation effects | 2 | 109 | 814 | 681 |
| 797 | Breeding | 4 | 109 | 993 | 1,003 |
| 799 | Mixed methods research | 1 | 107 | 143 | 77 |
| 799 | Cell differentiation | 5 | 107 | 1,013 | 1,411 |
| 799 | Africa | 9 | 107 | 811 | 886 |
| 802 | Structural dynamics | 4 | 106 | 831 | 1,004 |
| 802 | Comparative Education | 7 | 106 | 96 | 112 |
| 802 | biological invasions | 6 | 106 | 391 | 576 |
| 805 | Marine Ecology | 7 | 105 | 492 | 612 |
| 805 | Multimedia Systems | 6 | 105 | 1,307 | 1,365 |
| 807 | Aquatic ecosystems | 6 | 104 | 73 | 74 |
| 807 | biological factors | 1 | 104 | 2,613 | 1,599 |
| 807 | school psychologists | 2 | 104 | 239 | 218 |
| 810 | Behavioral research | 9 | 103 | 211 | 339 |
| 811 | Chemical Oceanography | 2 | 102 | 324 | 331 |
| 812 | Cell communication | 2 | 101 | 705 | 690 |
| 813 | Social History | 3 | 100 | 452 | 233 |
| 813 | India | 2 | 100 | 1,916 | 612 |
| 815 | Human Rights | 9 | 99 | 250 | 366 |
| 815 | Online social networks | 5 | 99 | 154 | 222 |
| 815 | pigments | 5 | 99 | 641 | 813 |
| 818 | Anthropology | 6 | 98 | 1,048 | 1,102 |
| 819 | biofuels | 1 | 97 | 484 | 462 |
| 819 | Paleogeography | 6 | 97 | 677 | 917 |
| 821 | Ethics | 7 | 96 | 563 | 652 |
| 821 | Geobiology | 4 | 96 | 360 | 428 |
| 821 | Groundwater | 4 | 96 | 474 | 541 |
| 824 | Consciousness | 3 | 95 | 489 | 424 |
| 825 | Economic Geography | 4 | 94 | 285 | 325 |
| 826 | Health Services Administration | 8 | 93 | 513 | 846 |
| 827 | Antioxidants | 1 | 92 | 1,076 | 911 |
| 827 | Holistic Health | 4 | 92 | 364 | 335 |
| 827 | Synthetic biology | 4 | 92 | 261 | 330 |
| 827 | Ventilation | 4 | 92 | 408 | 458 |
| 827 | body temperature | 3 | 92 | 534 | 465 |
| 827 | enzymes | 4 | 92 | 1,195 | 1,374 |
| 827 | Money | 2 | 92 | 472 | 437 |
| 834 | Marine Pollution | 2 | 91 | 1,412 | 1,316 |
| 834 | Europa | 6 | 91 | 318 | 499 |
| 836 | Urban Policy | 7 | 90 | 488 | 884 |
| 836 | Globalization | 5 | 90 | 396 | 496 |
| 836 | X-ray crystallography | 7 | 90 | 336 | 366 |
| 836 | Algae | 3 | 90 | 704 | 712 |
| 836 | Bioelectronics | 2 | 90 | 1,267 | 1,507 |
| 836 | Seaweed | 3 | 90 | 541 | 608 |
| 842 | Gender Studies | 10 | 89 | 197 | 475 |
| 842 | air quality management | 3 | 89 | 512 | 544 |
| 842 | local government | 5 | 89 | 248 | 360 |
| 842 | Metabolic syndrome | 2 | 89 | 358 | 221 |
| 842 | Aerosols | 1 | 89 | 835 | 475 |
| 842 | indoor air pollution | 3 | 89 | 367 | 392 |
| 842 | free radicals | 3 | 89 | 1,179 | 1,447 |
| 842 | Sick building syndrome | 3 | 89 | 367 | 392 |
| 842 | aerosol | 1 | 89 | 607 | 348 |
| 851 | Quantum Communication | 2 | 88 | 228 | 228 |
| 851 | Microcirculation | 1 | 88 | 725 | 438 |
| 851 | Constructivism | 7 | 88 | 18 | 23 |
| 851 | Chemical structure | 8 | 88 | 195 | 284 |
| 851 | Blood vessels | 1 | 88 | 628 | 366 |
| 856 | Higher Education | 4 | 87 | 523 | 502 |
| 856 | Control Theory | 14 | 87 | 842 | 1,376 |
| 856 | peptides | 3 | 87 | 793 | 631 |
| 856 | Papermaking | 16 | 87 | 23 | 35 |
| 860 | Contraception | 2 | 86 | 678 | 549 |
| 860 | peace | 4 | 86 | 404 | 466 |
| 860 | press | 4 | 86 | 50 | 9 |
| 860 | race relations | 7 | 86 | 353 | 503 |
| 864 | Building Materials | 3 | 85 | 1,633 | 1,892 |
| 864 | Production Management | 3 | 85 | 1,150 | 1,389 |
| 864 | Computational Complexity | 6 | 85 | 717 | 753 |
| 864 | Chemical processes | 5 | 85 | 411 | 471 |
| 868 | Immunotherapy | 8 | 84 | 953 | 1,637 |
| 868 | speech therapy | 3 | 84 | 384 | 331 |
| 868 | Critical Discourse Analysis | 3 | 84 | 38 | 39 |
| 868 | Multiculturalism | 16 | 84 | 7 | 34 |
| 868 | Bioethics | 6 | 84 | 627 | 671 |
| 868 | Medical Ethics | 6 | 84 | 746 | 805 |
| 868 | Hospitality industry | 4 | 84 | 300 | 419 |
| 875 | Language planning | 6 | 83 | 75 | 72 |
| 876 | Adoption | 5 | 82 | 50 | 62 |
| 876 | Socioeconomic Factors | 4 | 82 | 642 | 844 |
| 876 | Jurisprudence | 8 | 82 | 550 | 730 |
| 876 | Immune system | 3 | 82 | 803 | 1,006 |
| 880 | Obstetrics | 5 | 81 | 1,478 | 1,681 |
| 880 | Positive Psychology | 2 | 81 | 212 | 247 |
| 880 | Interactive multimedia | 2 | 81 | 708 | 644 |
| 883 | Bibliometrics | 3 | 80 | 131 | 184 |
| 883 | Cell adhesion | 3 | 80 | 133 | 208 |
| 883 | health services | 5 | 80 | 761 | 942 |
| 883 | Leisure | 4 | 80 | 277 | 383 |
| 887 | Functional Genomics | 4 | 79 | 188 | 357 |
| 887 | family studies | 1 | 79 | 82 | 69 |
| 887 | Parenting | 1 | 79 | 117 | 85 |
| 887 | Child rearing | 1 | 79 | 117 | 85 |
| 887 | Nonprofit organizations | 5 | 79 | 227 | 361 |
| 887 | concrete | 2 | 79 | 1,082 | 1,139 |
| 887 | Cement | 2 | 79 | 683 | 802 |
| 887 | transport vesicles | 2 | 79 | 287 | 489 |
| 895 | Urban Economics | 3 | 78 | 353 | 439 |
| 895 | Urbanization | 3 | 78 | 179 | 154 |
| 897 | Ecological Genetics | 4 | 77 | 560 | 539 |
| 897 | micromechanics | 3 | 77 | 607 | 609 |
| 897 | Herpetology | 1 | 77 | 645 | 228 |
| 897 | Japan | 5 | 77 | 1,393 | 1,454 |
| 897 | Amphibians | 1 | 77 | 499 | 136 |
| 897 | Reptiles | 1 | 77 | 535 | 204 |
| 903 | Diagnostic Imaging | 7 | 76 | 1,118 | 1,492 |
| 903 | Critical theory | 6 | 76 | 76 | 106 |
| 903 | Entropy | 5 | 76 | 928 | 971 |
| 903 | Semiotics | 11 | 76 | 106 | 131 |
| 903 | planning | 2 | 76 | 987 | 697 |
| 908 | organizational effectiveness | 1 | 75 | 869 | 462 |
| 908 | toxicity testing | 1 | 75 | 1,089 | 709 |
| 908 | corporate culture | 1 | 75 | 420 | 250 |
| 908 | cryosphere | 2 | 75 | 414 | 428 |
| 912 | women | 8 | 74 | 455 | 587 |
| 913 | Occupational Therapy | 10 | 73 | 469 | 629 |
| 913 | Social Movements | 2 | 73 | 195 | 100 |
| 913 | Computer-Aided Design | 4 | 73 | 1,042 | 1,144 |
| 913 | Collective behavior | 2 | 73 | 109 | 93 |
| 913 | Microbiota | 1 | 73 | 207 | 58 |
| 913 | sex crimes | 4 | 73 | 541 | 666 |
| 919 | Medical Microbiology | 2 | 72 | 2,064 | 2,142 |
| 919 | Heat Exchangers | 3 | 72 | 1,234 | 1,490 |
| 919 | soil pollution | 9 | 72 | 189 | 586 |
| 919 | international cooperation | 6 | 72 | 382 | 655 |
| 923 | Immunopathology | 2 | 71 | 1,098 | 1,093 |
| 923 | World Bank | 1 | 71 | 110 | 90 |
| 925 | Community Psychiatry | 4 | 70 | 749 | 1,051 |
| 925 | Information society | 5 | 70 | 56 | 158 |
| 925 | allied health | 3 | 70 | 262 | 282 |
| 928 | Risk assessment | 3 | 69 | 649 | 606 |
| 928 | Electrochemical Analysis | 4 | 69 | 1,399 | 1,583 |
| 928 | Cost effectiveness | 3 | 69 | 70 | 72 |
| 928 | plankton | 5 | 69 | 116 | 242 |
| 932 | Public Administration | 11 | 68 | 689 | 1,150 |
| 932 | Organ transplantation | 1 | 68 | 505 | 241 |
| 932 | Communication Disorders | 2 | 68 | 397 | 271 |
| 935 | Computer Vision | 3 | 67 | 1,127 | 1,266 |
| 935 | Speech Perception | 3 | 67 | 331 | 441 |
| 935 | International security | 1 | 67 | 371 | 330 |
| 935 | population geography | 7 | 67 | 204 | 456 |
| 935 | conflict management | 1 | 67 | 455 | 344 |
| 935 | Vaccines | 3 | 67 | 1,502 | 1,584 |
| 941 | Alternative Medicine | 2 | 66 | 1,807 | 1,689 |
| 941 | complementary therapies | 2 | 66 | 2,022 | 1,775 |
| 943 | Biopharmaceutics | 1 | 65 | 1,498 | 1,212 |
| 943 | Radiography | 3 | 65 | 662 | 917 |
| 943 | Chemical analysis | 2 | 65 | 1,319 | 1,256 |
| 943 | multimedia | 1 | 65 | 819 | 649 |
| 943 | Metals | 2 | 65 | 2,200 | 1,888 |
| 948 | Transportation Engineering | 2 | 64 | 379 | 397 |
| 948 | Democracy | 5 | 64 | 197 | 214 |
| 948 | Food additives | 5 | 64 | 805 | 1,470 |
| 948 | fuel cells | 4 | 64 | 1,081 | 1,471 |
| 952 | Crime prevention | 2 | 63 | 318 | 217 |
| 952 | soil conservation | 7 | 63 | 457 | 983 |
| 952 | Marine mammals | 3 | 63 | 238 | 281 |
| 955 | Paleontology | 4 | 62 | 1,098 | 1,172 |
| 955 | Transnational corporations | 1 | 62 | 815 | 519 |
| 955 | radiative transfer | 4 | 62 | 517 | 555 |
| 955 | Longevity | 3 | 62 | 161 | 223 |
| 955 | motor skills | 3 | 62 | 206 | 222 |
| 960 | Structural design | 6 | 61 | 569 | 893 |
| 960 | Industrial Safety | 6 | 61 | 803 | 1,249 |
| 960 | Computational Fluid Dynamics | 3 | 61 | 658 | 707 |
| 960 | Radio waves | 2 | 61 | 968 | 937 |
| 960 | China | 9 | 61 | 1,637 | 2,699 |
| 960 | rejuvenation | 2 | 61 | 163 | 197 |
| 960 | Economic Assistance | 5 | 61 | 495 | 960 |
| 960 | environmental issues | 2 | 61 | 550 | 597 |
| 968 | Histochemistry | 3 | 60 | 967 | 1,005 |
| 968 | Avionics | 2 | 60 | 144 | 135 |
| 968 | Ceramic materials | 5 | 60 | 1,051 | 1,402 |
| 968 | Plant breeding | 2 | 60 | 917 | 881 |
| 972 | Origin of life | 2 | 59 | 183 | 173 |
| 972 | nursing ethics | 3 | 59 | 228 | 349 |
| 972 | Organelle biogenesis | 2 | 59 | 271 | 270 |
| 972 | police | 1 | 59 | 621 | 321 |
| 976 | Infrared spectroscopy | 1 | 58 | 690 | 419 |
| 977 | Geriatric Medicine | 1 | 57 | 324 | 220 |
| 977 | Nanoelectronics | 9 | 57 | 406 | 680 |
| 977 | Critical Pedagogy | 4 | 57 | 38 | 51 |
| 977 | Synaptic Transmission | 1 | 57 | 690 | 577 |
| 977 | Gender identity | 3 | 57 | 302 | 263 |
| 982 | Health Services Research | 6 | 56 | 1,027 | 1,642 |
| 982 | Viticulture | 1 | 56 | 228 | 139 |
| 982 | civilization | 8 | 56 | 630 | 438 |
| 982 | Psychiatric Epidemiology | 3 | 56 | 451 | 721 |
| 986 | Arts | 8 | 55 | 183 | 256 |
| 986 | Molecular Microbiology | 3 | 55 | 776 | 1,136 |
| 986 | Energy Storage | 3 | 55 | 1,281 | 1,483 |
| 989 | Mathematics Education | 3 | 54 | 510 | 421 |
| 989 | Microbial Biotechnology | 2 | 54 | 1,298 | 1,378 |
| 989 | Human evolution | 1 | 54 | 646 | 619 |
| 989 | ethnic groups | 2 | 54 | 437 | 409 |
| 993 | emergency management | 3 | 53 | 703 | 901 |
| 993 | Energy metabolism | 2 | 53 | 649 | 729 |
| 993 | European integration | 2 | 53 | 271 | 278 |
| 993 | men | 3 | 53 | 290 | 374 |
| 993 | cell membrane | 2 | 53 | 601 | 702 |
| 993 | European Economic Community | 2 | 53 | 271 | 278 |
| 999 | Neonatology | 3 | 52 | 574 | 672 |
| 999 | Maternal health services | 1 | 52 | 673 | 493 |