| 1 | Physics | 760 | 79.4K | 516 | 362 |
| 2 | Astrophysics | 374 | 41.7K | 333 | 269 |
| 3 | Spectrum analysis | 432 | 41.7K | 236 | 156 |
| 4 | Biology | 660 | 32.9K | 416 | 572 |
| 5 | marketing | 206 | 31.8K | 24 | 15 |
| 6 | Science | 472 | 31.4K | 582 | 598 |
| 7 | Chemistry | 605 | 28.4K | 646 | 618 |
| 8 | Ecology | 464 | 27.7K | 312 | 312 |
| 9 | United States | 1,277 | 27.5K | 78 | 120 |
| 10 | Biochemistry | 657 | 24.9K | 574 | 546 |
| 11 | management | 267 | 23.0K | 110 | 119 |
| 12 | Pollution | 517 | 22.8K | 138 | 220 |
| 13 | Nuclear Physics | 415 | 20.5K | 440 | 371 |
| 14 | Medicine | 474 | 19.0K | 592 | 605 |
| 15 | Molecular Biology | 370 | 18.2K | 623 | 599 |
| 16 | Statistics | 184 | 17.6K | 175 | 64 |
| 17 | Psychology | 569 | 16.2K | 163 | 222 |
| 18 | Botany | 332 | 14.9K | 221 | 251 |
| 19 | Ergonomics | 358 | 14.5K | 15 | 3 |
| 20 | environmental pollution | 398 | 14.4K | 105 | 155 |
| 21 | Biometrics | 19 | 13.8K | 364 | 21 |
| 22 | Quantum Gravity | 116 | 13.0K | 463 | 227 |
| 23 | Research | 416 | 13.0K | 533 | 556 |
| 24 | Analytical Chemistry | 365 | 12.0K | 171 | 212 |
| 25 | Quality Control | 41 | 11.5K | 206 | 4 |
| 26 | Nanotechnology | 176 | 11.0K | 586 | 471 |
| 27 | Natural history | 174 | 10.8K | 274 | 637 |
| 28 | Environmental Health | 240 | 10.7K | 319 | 360 |
| 29 | Polymers | 276 | 10.5K | 378 | 311 |
| 30 | Environment | 160 | 10.2K | 509 | 541 |
| 31 | Microbiology | 206 | 10.1K | 664 | 636 |
| 32 | Experimental Design | 14 | 10.1K | 77 | 3 |
| 33 | Psychiatry | 235 | 10.0K | 300 | 325 |
| 34 | Small Business | 64 | 9.8K | 12 | 10 |
| 35 | Entrepreneurship | 50 | 9.5K | 35 | 23 |
| 36 | Condensed Matter | 244 | 9.3K | 396 | 369 |
| 37 | Behavior | 250 | 9.3K | 165 | 247 |
| 38 | Mathematics | 550 | 9.1K | 308 | 251 |
| 39 | Biophysics | 298 | 9.0K | 480 | 502 |
| 40 | Social Psychology | 162 | 8.9K | 171 | 165 |
| 41 | Business | 132 | 8.8K | 78 | 120 |
| 42 | Nutrition | 295 | 8.7K | 176 | 288 |
| 43 | Toxicology | 257 | 8.7K | 260 | 291 |
| 44 | Materials | 190 | 8.3K | 779 | 720 |
| 45 | polymerization | 182 | 8.3K | 417 | 282 |
| 46 | Leadership | 79 | 8.0K | 5 | 5 |
| 47 | Astronomy | 232 | 8.0K | 384 | 477 |
| 48 | Solid State Physics | 265 | 7.9K | 414 | 395 |
| 49 | Family | 294 | 7.7K | 8 | 15 |
| 50 | Genetics | 125 | 7.4K | 397 | 418 |
| 51 | plant molecular biology | 78 | 7.0K | 182 | 169 |
| 52 | Biotechnology | 142 | 6.9K | 688 | 681 |
| 53 | Neurology | 206 | 6.9K | 590 | 682 |
| 54 | Education | 286 | 6.8K | 181 | 189 |
| 55 | Communication | 259 | 6.7K | 38 | 101 |
| 56 | Environmental Engineering | 139 | 6.4K | 289 | 329 |
| 57 | Plant physiology | 100 | 6.3K | 221 | 183 |
| 58 | Automation | 112 | 6.2K | 222 | 206 |
| 59 | counseling | 280 | 6.1K | 16 | 37 |
| 60 | Public Health | 120 | 6.0K | 652 | 476 |
| 61 | Developmental Biology | 40 | 5.9K | 431 | 236 |
| 62 | Environmental Chemistry | 142 | 5.9K | 57 | 182 |
| 63 | Chemical Engineering | 173 | 5.5K | 547 | 641 |
| 64 | Environmental pollutants | 145 | 5.5K | 54 | 61 |
| 65 | pollutants | 141 | 5.4K | 42 | 52 |
| 66 | mammals | 222 | 5.4K | 3 | 8 |
| 67 | Cytology | 81 | 5.3K | 732 | 678 |
| 68 | Pharmacology | 176 | 5.3K | 603 | 624 |
| 69 | Evolution | 70 | 5.2K | 284 | 243 |
| 70 | biological evolution | 59 | 5.2K | 363 | 288 |
| 71 | Plants | 105 | 5.2K | 168 | 225 |
| 72 | Psychophysiology | 200 | 5.1K | 258 | 373 |
| 73 | Cell Biology | 76 | 5.1K | 693 | 694 |
| 74 | Materials Science | 163 | 5.0K | 508 | 633 |
| 75 | Biocompatible Materials | 79 | 5.0K | 700 | 615 |
| 76 | Economics | 262 | 4.9K | 301 | 378 |
| 77 | human behavior | 127 | 4.9K | 194 | 321 |
| 78 | Soil Science | 127 | 4.9K | 103 | 109 |
| 79 | Plant cells | 49 | 4.9K | 233 | 236 |
| 80 | Colloids | 115 | 4.8K | 544 | 503 |
| 81 | Composite Materials | 46 | 4.7K | 627 | 316 |
| 82 | Sports | 184 | 4.7K | 82 | 129 |
| 83 | sanitation | 72 | 4.6K | 204 | 268 |
| 84 | Clinical Psychology | 129 | 4.6K | 71 | 133 |
| 85 | Endocrinology | 146 | 4.6K | 311 | 432 |
| 86 | Physiology | 148 | 4.6K | 486 | 528 |
| 87 | Microwaves | 86 | 4.5K | 159 | 61 |
| 88 | Biomedical Engineering | 194 | 4.5K | 398 | 564 |
| 89 | nanoscience | 39 | 4.4K | 765 | 422 |
| 90 | finance | 135 | 4.3K | 136 | 180 |
| 91 | Surface Chemistry | 90 | 4.3K | 669 | 504 |
| 91 | Obesity | 117 | 4.3K | 163 | 197 |
| 93 | Family Therapy | 272 | 4.2K | 4 | 7 |
| 94 | families | 215 | 4.2K | 8 | 23 |
| 95 | Biodiversity conservation | 37 | 4.2K | 360 | 319 |
| 96 | Agronomy | 141 | 4.1K | 31 | 40 |
| 97 | Geophysics | 119 | 4.0K | 537 | 532 |
| 98 | Aging | 134 | 3.9K | 241 | 281 |
| 99 | Political Science | 150 | 3.8K | 118 | 138 |
| 100 | Zoology | 149 | 3.7K | 172 | 185 |
| 101 | Petroleum Engineering | 95 | 3.7K | 57 | 45 |
| 102 | Microbial Ecology | 57 | 3.7K | 390 | 382 |
| 103 | Organic Chemistry | 129 | 3.6K | 325 | 374 |
| 104 | Physical Chemistry | 78 | 3.6K | 314 | 297 |
| 105 | Bioengineering | 88 | 3.6K | 614 | 708 |
| 106 | Environmental monitoring | 103 | 3.5K | 374 | 510 |
| 107 | soil microbiology | 30 | 3.5K | 371 | 205 |
| 108 | Optics | 243 | 3.5K | 374 | 508 |
| 109 | Sports Medicine | 121 | 3.5K | 235 | 274 |
| 110 | Breeding | 61 | 3.4K | 130 | 69 |
| 111 | Catalysis | 97 | 3.4K | 727 | 812 |
| 112 | Geography | 111 | 3.3K | 203 | 228 |
| 113 | Meteorology | 94 | 3.3K | 276 | 354 |
| 114 | Structural Engineering | 109 | 3.3K | 142 | 148 |
| 115 | Soil biology | 17 | 3.3K | 319 | 124 |
| 116 | Plant genetic engineering | 35 | 3.2K | 133 | 58 |
| 117 | Genomics | 108 | 3.2K | 308 | 384 |
| 118 | Tourism | 74 | 3.2K | 144 | 184 |
| 119 | Marriage | 122 | 3.2K | 8 | 11 |
| 120 | Biodiversity | 52 | 3.1K | 343 | 273 |
| 121 | Geriatrics | 96 | 3.1K | 357 | 326 |
| 122 | Nanostructured Materials | 86 | 3.1K | 540 | 552 |
| 123 | Engineering | 106 | 3.1K | 448 | 340 |
| 124 | Exercise | 97 | 3.0K | 55 | 55 |
| 125 | Climate change | 20 | 3.0K | 329 | 330 |
| 125 | Eutrophication | 20 | 3.0K | 318 | 329 |
| 127 | commerce | 23 | 2.9K | 373 | 153 |
| 128 | Leisure | 9 | 2.9K | 137 | 11 |
| 129 | Population Genetics | 37 | 2.9K | 243 | 188 |
| 130 | Social Sciences | 168 | 2.8K | 196 | 308 |
| 131 | Environmental Management | 61 | 2.8K | 416 | 425 |
| 132 | Plant Genetics | 29 | 2.8K | 111 | 64 |
| 133 | Substance Abuse | 76 | 2.8K | 155 | 123 |
| 134 | Molecular Genetics | 50 | 2.6K | 322 | 323 |
| 135 | Environmental Toxicology | 68 | 2.6K | 232 | 292 |
| 136 | Teaching | 83 | 2.6K | 155 | 146 |
| 137 | Pharmaceutical Chemistry | 69 | 2.6K | 680 | 622 |
| 138 | personality | 80 | 2.6K | 173 | 287 |
| 139 | Photochemistry | 69 | 2.5K | 96 | 97 |
| 140 | Electrophoresis | 55 | 2.5K | 168 | 98 |
| 141 | Child Development | 68 | 2.5K | 290 | 297 |
| 142 | Geology | 104 | 2.5K | 485 | 558 |
| 143 | Organizational Behavior | 25 | 2.5K | 104 | 80 |
| 144 | Operations Research | 53 | 2.5K | 432 | 292 |
| 145 | Sociology | 109 | 2.5K | 323 | 393 |
| 146 | Vocational guidance | 100 | 2.4K | 61 | 131 |
| 147 | Light | 60 | 2.4K | 67 | 221 |
| 148 | Animal Behavior | 93 | 2.4K | 258 | 379 |
| 149 | Health Education | 107 | 2.3K | 168 | 197 |
| 150 | Manufacturing Processes | 72 | 2.3K | 303 | 280 |
| 151 | Agriculture | 109 | 2.3K | 149 | 248 |
| 152 | Artificial Intelligence | 52 | 2.3K | 829 | 623 |
| 153 | consumer behavior | 22 | 2.3K | 85 | 31 |
| 154 | environmental protection | 58 | 2.3K | 552 | 568 |
| 155 | Environmental Policy | 47 | 2.3K | 644 | 631 |
| 156 | Food | 67 | 2.3K | 450 | 502 |
| 157 | Electronics | 98 | 2.3K | 492 | 512 |
| 158 | energy conservation | 17 | 2.2K | 741 | 381 |
| 159 | Neurophysiology | 64 | 2.2K | 568 | 645 |
| 160 | human development | 37 | 2.2K | 120 | 90 |
| 161 | Immunology | 72 | 2.2K | 581 | 707 |
| 162 | proteins | 60 | 2.2K | 287 | 277 |
| 163 | Climatology | 39 | 2.2K | 391 | 310 |
| 164 | Energy Policy | 53 | 2.1K | 429 | 541 |
| 165 | Marriage counseling | 88 | 2.1K | 5 | 15 |
| 166 | miniaturization | 36 | 2.1K | 418 | 438 |
| 167 | ecosystem | 56 | 2.1K | 124 | 223 |
| 168 | Consumer education | 15 | 2.1K | 45 | 11 |
| 169 | Public Relations | 42 | 2.0K | 22 | 14 |
| 169 | alcoholism | 70 | 2.0K | 193 | 223 |
| 171 | Geochemistry | 54 | 2.0K | 459 | 472 |
| 172 | Conservation Biology | 24 | 2.0K | 279 | 163 |
| 173 | Child psychology | 65 | 2.0K | 238 | 322 |
| 174 | Industrial Engineering | 88 | 2.0K | 153 | 243 |
| 175 | Molecular evolution | 42 | 2.0K | 238 | 268 |
| 176 | Production Engineering | 71 | 2.0K | 227 | 173 |
| 177 | Ethology | 73 | 2.0K | 231 | 362 |
| 178 | Decision making | 65 | 1.9K | 114 | 181 |
| 179 | Cognition | 50 | 1.9K | 366 | 345 |
| 180 | Neurochemistry | 40 | 1.9K | 587 | 519 |
| 181 | Cancer | 51 | 1.9K | 679 | 763 |
| 182 | Health | 58 | 1.9K | 293 | 293 |
| 183 | Combustion | 41 | 1.9K | 237 | 170 |
| 184 | Gerontology | 98 | 1.9K | 202 | 227 |
| 185 | Adolescent | 96 | 1.8K | 188 | 290 |
| 186 | Developmental Psychology | 50 | 1.8K | 155 | 191 |
| 187 | Perception | 39 | 1.8K | 419 | 328 |
| 188 | energy resources | 33 | 1.8K | 246 | 321 |
| 189 | Renewable Energy Sources | 31 | 1.8K | 676 | 791 |
| 190 | Memory | 37 | 1.8K | 408 | 348 |
| 191 | Social interaction | 25 | 1.8K | 32 | 16 |
| 192 | consumers | 19 | 1.8K | 37 | 9 |
| 193 | plant communities | 28 | 1.8K | 269 | 253 |
| 194 | Water | 55 | 1.8K | 456 | 654 |
| 195 | Biochemical Engineering | 36 | 1.8K | 917 | 1,050 |
| 196 | Soil ecology | 25 | 1.7K | 142 | 80 |
| 197 | Plant diseases | 34 | 1.7K | 484 | 297 |
| 198 | Cybernetics | 54 | 1.7K | 212 | 299 |
| 199 | Immunity | 21 | 1.7K | 580 | 594 |
| 200 | coal | 37 | 1.7K | 314 | 285 |
| 201 | Smoking | 37 | 1.7K | 127 | 103 |
| 201 | Attention | 34 | 1.7K | 386 | 280 |
| 203 | Brain | 56 | 1.7K | 578 | 655 |
| 204 | Planets | 31 | 1.7K | 475 | 440 |
| 205 | Consumer Protection | 10 | 1.7K | 46 | 3 |
| 206 | Fisheries | 46 | 1.6K | 268 | 239 |
| 207 | Plant Ecology | 45 | 1.6K | 351 | 425 |
| 208 | Strategic planning | 14 | 1.6K | 207 | 62 |
| 209 | drug addiction | 42 | 1.6K | 206 | 207 |
| 210 | Paleontology | 55 | 1.6K | 209 | 172 |
| 210 | Human genetics | 9 | 1.6K | 954 | 911 |
| 212 | Information Technology | 39 | 1.6K | 406 | 397 |
| 213 | Public Administration | 52 | 1.6K | 197 | 184 |
| 214 | Statistical physics | 83 | 1.6K | 714 | 830 |
| 215 | Diet | 74 | 1.6K | 254 | 503 |
| 215 | Information Science | 49 | 1.6K | 387 | 451 |
| 217 | Computational Chemistry | 20 | 1.6K | 146 | 107 |
| 218 | natural gas | 31 | 1.6K | 56 | 31 |
| 219 | Mental Disorders | 53 | 1.6K | 499 | 654 |
| 220 | Earthquake Engineering | 42 | 1.5K | 305 | 277 |
| 221 | Birds | 80 | 1.5K | 109 | 126 |
| 222 | Visual Perception | 22 | 1.5K | 492 | 296 |
| 223 | Ocean Engineering | 41 | 1.5K | 386 | 332 |
| 224 | Ecological Genetics | 18 | 1.5K | 124 | 10 |
| 225 | Business Ethics | 22 | 1.5K | 210 | 232 |
| 226 | Economic History | 81 | 1.5K | 420 | 485 |
| 227 | Educational Psychology | 53 | 1.5K | 245 | 309 |
| 228 | System analysis | 73 | 1.5K | 258 | 356 |
| 229 | Metabolism | 30 | 1.5K | 729 | 716 |
| 230 | Molecular ecology | 28 | 1.5K | 273 | 313 |
| 231 | Proteome | 36 | 1.5K | 184 | 223 |
| 232 | Wildlife management | 79 | 1.5K | 37 | 54 |
| 233 | Hydrology | 73 | 1.5K | 316 | 493 |
| 234 | Petrology | 31 | 1.5K | 298 | 273 |
| 235 | free radicals | 9 | 1.5K | 727 | 355 |
| 236 | Textile industry | 67 | 1.5K | 32 | 25 |
| 237 | Bioorganic chemistry | 62 | 1.4K | 467 | 648 |
| 238 | Carbon | 15 | 1.4K | 507 | 334 |
| 239 | adolescence | 62 | 1.4K | 94 | 176 |
| 240 | psychotherapy | 67 | 1.4K | 178 | 301 |
| 241 | internet | 28 | 1.4K | 345 | 265 |
| 242 | Europe | 46 | 1.4K | 652 | 508 |
| 243 | Green Chemistry | 35 | 1.4K | 410 | 504 |
| 244 | Nuclear Chemistry | 53 | 1.4K | 109 | 54 |
| 245 | Technology | 69 | 1.4K | 653 | 773 |
| 246 | drug therapy | 49 | 1.4K | 434 | 457 |
| 247 | Physical organic chemistry | 46 | 1.4K | 168 | 142 |
| 248 | Meteorites | 26 | 1.4K | 290 | 325 |
| 249 | mathematical analysis | 101 | 1.4K | 270 | 320 |
| 250 | Mental illness | 36 | 1.4K | 424 | 527 |
| 251 | Agricultural Ecology | 34 | 1.4K | 158 | 236 |
| 252 | Membranes | 39 | 1.3K | 399 | 504 |
| 253 | Bioenergetics | 49 | 1.3K | 85 | 157 |
| 253 | Energy metabolism | 48 | 1.3K | 72 | 138 |
| 255 | Cognitive Science | 20 | 1.3K | 478 | 346 |
| 256 | Wildlife conservation | 29 | 1.3K | 254 | 281 |
| 257 | Health promotion | 46 | 1.3K | 168 | 195 |
| 258 | Water pollution | 41 | 1.3K | 644 | 786 |
| 259 | Criminal psychology | 40 | 1.3K | 131 | 132 |
| 260 | Fishery management | 45 | 1.3K | 105 | 95 |
| 261 | Cognitive neuroscience | 20 | 1.3K | 343 | 307 |
| 262 | Transportation | 68 | 1.3K | 239 | 364 |
| 263 | Energy Conversion | 16 | 1.3K | 490 | 482 |
| 264 | Surgery | 17 | 1.3K | 583 | 596 |
| 265 | cell membrane | 47 | 1.3K | 70 | 132 |
| 266 | environmental exposure | 34 | 1.3K | 346 | 328 |
| 267 | Mineralogy | 29 | 1.3K | 412 | 348 |
| 268 | Agricultural Chemistry | 30 | 1.2K | 571 | 513 |
| 269 | Organizational change | 15 | 1.2K | 179 | 66 |
| 270 | Systems Engineering | 40 | 1.2K | 402 | 378 |
| 271 | Civil Engineering | 96 | 1.2K | 86 | 105 |
| 272 | Suicide | 31 | 1.2K | 59 | 54 |
| 273 | Biogeography | 27 | 1.2K | 246 | 293 |
| 274 | peace | 18 | 1.2K | 131 | 83 |
| 275 | Medical Laboratory Science | 35 | 1.2K | 437 | 551 |
| 276 | Physical fitness | 47 | 1.2K | 95 | 185 |
| 277 | Pediatrics | 51 | 1.2K | 409 | 592 |
| 278 | correctional psychology | 28 | 1.2K | 19 | 24 |
| 278 | China | 45 | 1.2K | 538 | 452 |
| 280 | International Relations | 43 | 1.2K | 187 | 153 |
| 281 | Process Control | 24 | 1.2K | 189 | 256 |
| 282 | Pharmaceutical Technology | 23 | 1.2K | 434 | 290 |
| 282 | Microelectronics | 17 | 1.2K | 714 | 533 |
| 282 | Entomology | 83 | 1.2K | 267 | 382 |
| 285 | Socialization | 34 | 1.2K | 52 | 93 |
| 286 | Mass Media | 38 | 1.2K | 76 | 24 |
| 287 | Biomass Energy | 20 | 1.2K | 878 | 799 |
| 288 | Neural circuitry | 21 | 1.2K | 645 | 432 |
| 289 | Epidemiology | 31 | 1.2K | 985 | 836 |
| 290 | Food service management | 44 | 1.2K | 27 | 81 |
| 291 | Mental Health | 37 | 1.2K | 295 | 245 |
| 292 | Signal Processing | 54 | 1.1K | 536 | 697 |
| 293 | Computational Biology | 37 | 1.1K | 550 | 634 |
| 294 | behavior therapy | 51 | 1.1K | 132 | 193 |
| 295 | eugenics | 9 | 1.1K | 237 | 47 |
| 296 | International Finance | 24 | 1.1K | 492 | 331 |
| 297 | child abuse | 27 | 1.1K | 169 | 181 |
| 298 | Biomechanics | 46 | 1.1K | 196 | 294 |
| 299 | Chromosomes | 20 | 1.1K | 226 | 170 |
| 300 | Quality Management | 5 | 1.1K | 94 | 4 |
| 300 | Electrochemistry | 118 | 1.1K | 647 | 1,076 |
| 302 | Atmospheric Physics | 46 | 1.1K | 326 | 454 |
| 303 | gene mapping | 30 | 1.1K | 464 | 531 |
| 304 | Educational Technology | 51 | 1.1K | 136 | 240 |
| 305 | health services | 52 | 1.1K | 125 | 155 |
| 306 | Clinical Chemistry | 31 | 1.1K | 728 | 736 |
| 307 | Pharmacy | 27 | 1.1K | 593 | 471 |
| 308 | Neuropsychology | 43 | 1.1K | 535 | 613 |
| 309 | Advertising | 23 | 1.1K | 35 | 45 |
| 310 | Telecommunication | 64 | 1.1K | 430 | 663 |
| 311 | Mycology | 25 | 1.1K | 446 | 395 |
| 312 | Medical genetics | 29 | 1.1K | 721 | 834 |
| 313 | Social behavior | 32 | 1.1K | 264 | 314 |
| 314 | Hospitality industry | 32 | 1.0K | 19 | 21 |
| 315 | Neurobiology | 20 | 1.0K | 610 | 609 |
| 316 | Plant Biotechnology | 17 | 1.0K | 189 | 113 |
| 317 | Child | 66 | 1.0K | 321 | 505 |
| 318 | Ornithology | 54 | 1.0K | 120 | 128 |
| 319 | recreation | 63 | 1.0K | 49 | 70 |
| 320 | Mechanical Engineering | 44 | 1.0K | 530 | 416 |
| 320 | Phylogeny | 22 | 1.0K | 199 | 197 |
| 322 | Financial management | 14 | 1.0K | 130 | 83 |
| 323 | Plastics | 32 | 1.0K | 347 | 273 |
| 324 | Host-parasite interactions | 20 | 1.0K | 361 | 467 |
| 325 | Production Management | 19 | 1.0K | 371 | 447 |
| 325 | lasers | 44 | 1.0K | 431 | 407 |
| 327 | Youth | 33 | 995 | 102 | 164 |
| 328 | family violence | 24 | 992 | 60 | 59 |
| 329 | Combinatorial chemistry | 22 | 991 | 162 | 187 |
| 330 | Control Theory | 70 | 990 | 235 | 388 |
| 331 | Wetland ecology | 37 | 989 | 23 | 34 |
| 332 | Philosophy | 87 | 986 | 229 | 193 |
| 332 | Obstetrics | 28 | 986 | 618 | 534 |
| 334 | Wetland conservation | 36 | 980 | 13 | 24 |
| 334 | Wetlands | 36 | 980 | 13 | 24 |
| 336 | Mental Health Services | 45 | 978 | 192 | 225 |
| 337 | role | 30 | 976 | 35 | 72 |
| 338 | Ophthalmology | 26 | 975 | 555 | 492 |
| 338 | Metabolic diseases | 27 | 975 | 628 | 768 |
| 340 | Radio | 32 | 973 | 399 | 445 |
| 341 | food technology | 28 | 972 | 748 | 739 |
| 342 | Drug design | 17 | 970 | 497 | 310 |
| 343 | Orthopedics | 23 | 959 | 439 | 356 |
| 344 | Rheology | 33 | 958 | 85 | 102 |
| 345 | elder abuse | 18 | 948 | 56 | 20 |
| 345 | Nanostructures | 10 | 948 | 1,082 | 579 |
| 345 | Nervous system | 36 | 948 | 594 | 762 |
| 348 | Socioeconomic Factors | 22 | 947 | 152 | 109 |
| 349 | Molecules | 32 | 944 | 421 | 363 |
| 350 | Microbial Genetics | 9 | 925 | 129 | 69 |
| 350 | Communication in medicine | 38 | 925 | 69 | 87 |
| 352 | cell physiology | 13 | 924 | 640 | 550 |
| 353 | Immunotherapy | 9 | 922 | 891 | 575 |
| 353 | Building Materials | 38 | 922 | 409 | 689 |
| 355 | economic policy | 51 | 921 | 393 | 413 |
| 356 | Earth Sciences | 38 | 920 | 890 | 956 |
| 357 | phytopathogenic bacteria | 6 | 919 | 144 | 66 |
| 358 | Nanoparticles | 17 | 910 | 746 | 545 |
| 359 | Sustainable Engineering | 26 | 903 | 423 | 513 |
| 360 | behavioral medicine | 34 | 882 | 261 | 420 |
| 361 | Chromosome mapping | 27 | 876 | 449 | 519 |
| 362 | Molecular structure | 26 | 873 | 722 | 631 |
| 363 | feeding behavior | 27 | 867 | 150 | 187 |
| 364 | drugs | 24 | 865 | 571 | 491 |
| 365 | Bioinformatics | 32 | 859 | 503 | 623 |
| 366 | Therapeutics | 36 | 857 | 380 | 516 |
| 366 | Nuclear family | 61 | 857 | 3 | 3 |
| 368 | environmental indicators | 11 | 850 | 508 | 267 |
| 369 | Mathematical Physics | 50 | 847 | 721 | 777 |
| 370 | older people | 51 | 845 | 270 | 269 |
| 371 | global environmental change | 8 | 844 | 418 | 259 |
| 372 | Cytogenetics | 13 | 833 | 563 | 495 |
| 373 | Virulence | 14 | 832 | 441 | 497 |
| 374 | livestock | 45 | 829 | 54 | 50 |
| 375 | Adolescent Psychology | 31 | 827 | 159 | 223 |
| 376 | Reproduction | 28 | 822 | 649 | 651 |
| 377 | Autism | 10 | 812 | 334 | 199 |
| 378 | health planning | 63 | 810 | 219 | 416 |
| 379 | Speech Disorders | 71 | 801 | 131 | 288 |
| 380 | Molecular Spectroscopy | 39 | 799 | 312 | 369 |
| 381 | heredity | 14 | 797 | 208 | 89 |
| 382 | Drug delivery systems | 20 | 795 | 472 | 504 |
| 383 | Eating Disorders | 26 | 794 | 199 | 222 |
| 384 | psychopathology | 7 | 791 | 193 | 104 |
| 384 | Auditing | 10 | 791 | 133 | 58 |
| 386 | Psychometrics | 11 | 787 | 209 | 137 |
| 387 | Geomorphology | 20 | 784 | 483 | 480 |
| 388 | Economic Development | 19 | 782 | 511 | 513 |
| 388 | Diabetes | 29 | 782 | 550 | 721 |
| 390 | Feeding and Eating Disorders | 25 | 775 | 197 | 214 |
| 391 | organization | 22 | 773 | 203 | 351 |
| 392 | Political Psychology | 15 | 771 | 105 | 102 |
| 393 | Immune system | 4 | 766 | 699 | 480 |
| 394 | Health Information Management | 13 | 764 | 38 | 144 |
| 394 | animals | 24 | 764 | 292 | 193 |
| 396 | Personality Assessment | 43 | 760 | 51 | 182 |
| 397 | Nutrition physiology | 26 | 759 | 114 | 183 |
| 398 | behavior modification | 22 | 752 | 111 | 154 |
| 399 | bats | 26 | 750 | 1 | 1 |
| 400 | Soft Condensed Matter | 30 | 747 | 272 | 318 |
| 401 | Heat Exchangers | 7 | 743 | 835 | 399 |
| 402 | preventive medicine | 14 | 738 | 447 | 382 |
| 403 | Psycholinguistics | 12 | 729 | 442 | 326 |
| 404 | food contamination | 16 | 727 | 245 | 103 |
| 405 | Counseling Psychology | 19 | 724 | 55 | 55 |
| 406 | Sales management | 22 | 721 | 25 | 130 |
| 406 | selling | 22 | 721 | 25 | 130 |
| 408 | Lipids | 18 | 720 | 401 | 436 |
| 408 | Roads | 56 | 720 | 112 | 141 |
| 410 | Agricultural Science | 36 | 717 | 23 | 90 |
| 411 | Chemotherapy | 23 | 715 | 362 | 352 |
| 411 | Medical Physics | 20 | 715 | 562 | 549 |
| 411 | Food Microbiology | 27 | 715 | 259 | 458 |
| 414 | Chemical analysis | 32 | 709 | 153 | 257 |
| 415 | Solar Energy | 18 | 706 | 564 | 586 |
| 415 | Computer Literacy | 15 | 706 | 30 | 16 |
| 415 | genome | 18 | 706 | 503 | 648 |
| 418 | Mass Spectrometry | 26 | 705 | 304 | 326 |
| 419 | Regional Planning | 22 | 704 | 496 | 438 |
| 420 | Phytotherapy | 10 | 702 | 189 | 78 |
| 421 | Political Sociology | 13 | 700 | 171 | 102 |
| 422 | Diabetes mellitus | 25 | 699 | 552 | 731 |
| 423 | clay | 23 | 697 | 141 | 204 |
| 424 | Intellectual disability | 29 | 695 | 177 | 212 |
| 425 | Energy Storage | 12 | 694 | 574 | 424 |
| 426 | Molecular Pharmacology | 14 | 691 | 301 | 289 |
| 427 | Vocational Education | 38 | 687 | 59 | 86 |
| 427 | Research Design | 22 | 687 | 305 | 352 |
| 429 | Community Colleges | 44 | 686 | 9 | 5 |
| 430 | Politics | 8 | 685 | 284 | 116 |
| 430 | government | 8 | 685 | 322 | 145 |
| 432 | Information Theory | 8 | 684 | 874 | 407 |
| 432 | conflict management | 12 | 684 | 75 | 56 |
| 434 | Sustainable Development | 9 | 683 | 1,075 | 680 |
| 434 | Radiation effects | 22 | 683 | 77 | 129 |
| 436 | Sexual health | 11 | 682 | 270 | 144 |
| 437 | Cellulose | 12 | 677 | 188 | 134 |
| 438 | Cardiovascular system | 12 | 675 | 645 | 728 |
| 438 | Learning | 28 | 675 | 345 | 446 |
| 440 | Power Electronics | 18 | 674 | 400 | 439 |
| 441 | Virology | 33 | 672 | 746 | 1,254 |
| 442 | Microfluidics | 18 | 671 | 22 | 25 |
| 443 | explosives | 25 | 668 | 27 | 12 |
| 444 | biological monitoring | 11 | 667 | 138 | 74 |
| 445 | Liposomes | 15 | 664 | 151 | 149 |
| 446 | Detectors | 28 | 661 | 339 | 371 |
| 447 | Electrical Engineering | 89 | 660 | 485 | 759 |
| 447 | Fisheries Law | 13 | 660 | 49 | 54 |
| 447 | fisheries management | 13 | 660 | 49 | 54 |
| 450 | Physical Therapy | 14 | 656 | 517 | 431 |
| 450 | Food additives | 10 | 656 | 509 | 376 |
| 450 | warfare | 10 | 656 | 111 | 93 |
| 453 | peptides | 11 | 654 | 282 | 78 |
| 454 | Functional foods | 7 | 652 | 152 | 41 |
| 455 | sustainability | 6 | 651 | 556 | 324 |
| 456 | Fluid Mechanics | 33 | 643 | 359 | 451 |
| 457 | carcinogens | 9 | 634 | 450 | 319 |
| 458 | Animal ecology | 28 | 632 | 315 | 410 |
| 459 | Special Education | 44 | 630 | 112 | 163 |
| 460 | Proteomics | 11 | 628 | 480 | 357 |
| 461 | Energy Harvesting | 7 | 625 | 253 | 262 |
| 462 | Medical Oncology | 11 | 620 | 745 | 615 |
| 463 | Dynamics | 46 | 619 | 207 | 309 |
| 463 | Ultrasonics | 16 | 619 | 406 | 407 |
| 463 | Heterocyclic compounds | 37 | 619 | 123 | 76 |
| 466 | Dermatology | 33 | 616 | 419 | 524 |
| 467 | War and Society | 8 | 609 | 106 | 84 |
| 467 | international cooperation | 8 | 609 | 305 | 153 |
| 469 | irrigation | 19 | 608 | 62 | 39 |
| 470 | Cheminformatics | 4 | 606 | 237 | 115 |
| 471 | Petroleum | 10 | 603 | 107 | 18 |
| 472 | language | 22 | 601 | 214 | 265 |
| 473 | Building | 18 | 600 | 171 | 113 |
| 474 | Carcinogenesis | 7 | 599 | 525 | 335 |
| 474 | Post-traumatic stress disorder | 27 | 599 | 160 | 263 |
| 476 | International security | 10 | 597 | 92 | 85 |
| 476 | Liquid chromatography | 10 | 597 | 169 | 13 |
| 478 | rehabilitation | 28 | 596 | 545 | 722 |
| 478 | Australia | 20 | 596 | 521 | 390 |
| 480 | Urban Policy | 6 | 593 | 550 | 206 |
| 481 | urban forestry | 5 | 592 | 135 | 35 |
| 481 | United Kingdom | 22 | 592 | 454 | 558 |
| 483 | Vaccines | 14 | 591 | 661 | 529 |
| 484 | Speech | 38 | 587 | 163 | 322 |
| 485 | Jurisprudence | 12 | 580 | 411 | 210 |
| 486 | Econometrics | 43 | 579 | 253 | 431 |
| 487 | industrial hygiene | 39 | 578 | 101 | 110 |
| 488 | Numerical Analysis | 48 | 577 | 446 | 642 |
| 488 | Industrial Safety | 15 | 577 | 381 | 300 |
| 490 | Linguistics | 16 | 576 | 549 | 361 |
| 491 | Animal breeding | 17 | 575 | 287 | 211 |
| 491 | Chromatography | 24 | 575 | 419 | 420 |
| 493 | Plant breeding | 16 | 574 | 217 | 176 |
| 494 | health behavior | 19 | 571 | 269 | 277 |
| 494 | mutagens | 6 | 571 | 468 | 318 |
| 496 | Archaeology | 45 | 569 | 265 | 365 |
| 497 | Metallurgy | 17 | 567 | 918 | 743 |
| 498 | Geriatric Psychiatry | 17 | 561 | 303 | 278 |
| 499 | Oncology | 20 | 557 | 672 | 1,122 |
| 500 | Semiconductors | 27 | 556 | 594 | 543 |
| 501 | Environmental risk assessment | 12 | 554 | 70 | 38 |
| 501 | environmental control | 12 | 554 | 35 | 29 |
| 503 | Optical materials | 25 | 552 | 930 | 1,237 |
| 504 | Marine Biology | 24 | 550 | 915 | 1,060 |
| 505 | Chromatographic analysis | 22 | 547 | 579 | 498 |
| 506 | Alzheimer's disease | 17 | 546 | 540 | 382 |
| 507 | Pharmacokinetics | 14 | 545 | 240 | 241 |
| 507 | Sleep Disorders | 21 | 545 | 454 | 484 |
| 507 | Nonlinear Dynamics | 36 | 545 | 608 | 806 |
| 510 | technical education | 32 | 543 | 54 | 85 |
| 511 | plasticity | 10 | 541 | 152 | 165 |
| 512 | Depression | 5 | 538 | 217 | 172 |
| 512 | Anxiety Disorders | 5 | 538 | 359 | 271 |
| 512 | Anxiety | 5 | 538 | 360 | 274 |
| 515 | Portfolio Management | 24 | 535 | 30 | 32 |
| 516 | Lipid bilayers | 14 | 533 | 136 | 169 |
| 517 | Cloud Computing | 26 | 528 | 18 | 46 |
| 518 | Plant tissue culture | 15 | 526 | 185 | 164 |
| 518 | Dementia | 15 | 526 | 573 | 353 |
| 518 | Plant cell culture | 15 | 526 | 154 | 161 |
| 521 | violence | 23 | 525 | 274 | 367 |
| 522 | Computer-Aided Design | 18 | 522 | 366 | 349 |
| 523 | Emotions | 12 | 517 | 262 | 286 |
| 524 | Surface-Active Agents | 6 | 516 | 760 | 403 |
| 524 | Surface properties | 6 | 516 | 814 | 454 |
| 524 | Stress | 3 | 516 | 274 | 33 |
| 527 | Medical Anthropology | 17 | 508 | 417 | 543 |
| 528 | Law | 16 | 505 | 490 | 198 |
| 529 | Health Policy | 25 | 503 | 621 | 730 |
| 530 | Bacteriology | 21 | 502 | 627 | 895 |
| 530 | Groundwater | 17 | 502 | 162 | 167 |
| 532 | Biopharmaceutics | 15 | 501 | 381 | 400 |
| 533 | Calorimetry | 25 | 498 | 224 | 234 |
| 533 | Thermal analysis | 25 | 498 | 224 | 234 |
| 535 | Psychopharmacology | 22 | 497 | 466 | 664 |
| 536 | Hematology | 36 | 495 | 655 | 920 |
| 537 | Microorganisms | 12 | 492 | 420 | 528 |
| 538 | protein | 14 | 490 | 478 | 433 |
| 539 | Health Services Administration | 33 | 488 | 149 | 275 |
| 540 | Genetic epidemiology | 1 | 486 | 371 | 75 |
| 540 | computer networks | 16 | 486 | 1,050 | 997 |
| 542 | Scandinavia | 9 | 485 | 257 | 140 |
| 543 | Parasitology | 32 | 480 | 589 | 818 |
| 543 | California | 21 | 480 | 104 | 111 |
| 545 | Tribology | 18 | 477 | 387 | 374 |
| 546 | Developing countries | 20 | 475 | 730 | 815 |
| 547 | clay minerals | 17 | 474 | 51 | 82 |
| 548 | Population | 8 | 473 | 486 | 311 |
| 549 | Elderly | 34 | 471 | 279 | 214 |
| 550 | Intelligence | 1 | 470 | 435 | 97 |
| 551 | Music | 21 | 462 | 195 | 161 |
| 552 | Sleep | 21 | 459 | 462 | 541 |
| 553 | Medical Microbiology | 14 | 456 | 909 | 1,078 |
| 554 | Multiphase Flow | 7 | 455 | 218 | 137 |
| 555 | Anatomy | 21 | 454 | 679 | 767 |
| 556 | biopolymers | 25 | 452 | 321 | 485 |
| 557 | Personality Disorders | 5 | 450 | 175 | 92 |
| 558 | Genetic engineering | 15 | 446 | 833 | 940 |
| 558 | wind erosion | 10 | 446 | 17 | 19 |
| 560 | Paleogeography | 10 | 445 | 498 | 440 |
| 561 | Patient education | 5 | 444 | 393 | 245 |
| 562 | Histology | 12 | 442 | 863 | 802 |
| 562 | mass transfer | 26 | 442 | 543 | 790 |
| 564 | Microwave devices | 28 | 441 | 92 | 131 |
| 565 | Developmental Disabilities | 24 | 436 | 258 | 450 |
| 566 | Medical Technology | 13 | 435 | 614 | 559 |
| 567 | Cognitive Therapy | 16 | 434 | 190 | 218 |
| 568 | Intelligent Transportation Systems | 17 | 433 | 360 | 533 |
| 568 | Analytical Biochemistry | 17 | 433 | 609 | 636 |
| 570 | Educational measurement | 8 | 432 | 77 | 34 |
| 570 | Appetite | 15 | 432 | 193 | 279 |
| 572 | Multimedia Systems | 12 | 431 | 851 | 554 |
| 573 | natural disasters | 23 | 428 | 255 | 497 |
| 574 | Distance Education | 15 | 427 | 67 | 87 |
| 575 | DNA | 9 | 425 | 232 | 124 |
| 576 | Robotics | 20 | 424 | 600 | 700 |
| 577 | Soil fertility | 8 | 423 | 142 | 142 |
| 578 | Experimental Psychology | 17 | 420 | 206 | 276 |
| 578 | hazard mitigation | 22 | 420 | 133 | 298 |
| 580 | Business communication | 31 | 419 | 7 | 25 |
| 581 | Futures | 19 | 418 | 33 | 54 |
| 582 | pharmaceutical industry | 8 | 417 | 275 | 106 |
| 583 | Metals | 9 | 415 | 1,176 | 885 |
| 584 | Great Lakes | 6 | 411 | 128 | 70 |
| 585 | Photography | 132 | 409 | 160 | 162 |
| 586 | Student Health Services | 14 | 408 | 83 | 73 |
| 587 | Algebra | 37 | 407 | 350 | 323 |
| 588 | Lipid metabolism | 8 | 404 | 165 | 152 |
| 588 | Lipid | 8 | 404 | 165 | 154 |
| 590 | Oncogenes | 8 | 400 | 587 | 680 |
| 591 | Respiration | 16 | 398 | 562 | 656 |
| 592 | Decision Support Systems | 17 | 397 | 14 | 25 |
| 593 | drug evaluation | 9 | 396 | 657 | 468 |
| 594 | Emergency Medicine | 33 | 394 | 275 | 376 |
| 595 | Labor Economics | 8 | 393 | 252 | 174 |
| 596 | dietary supplements | 15 | 391 | 201 | 290 |
| 596 | Digestive system diseases | 14 | 391 | 376 | 378 |
| 598 | Signal Transduction | 11 | 389 | 668 | 776 |
| 599 | Qualitative Research | 6 | 387 | 327 | 177 |
| 599 | Ultrasound | 8 | 387 | 398 | 264 |
| 601 | Hypertension | 3 | 386 | 1,140 | 894 |
| 602 | Solid State Chemistry | 20 | 385 | 1,098 | 1,105 |
| 603 | Measurement | 21 | 382 | 360 | 476 |
| 604 | Engineering Mathematics | 40 | 381 | 328 | 614 |
| 604 | nucleic acids | 15 | 381 | 702 | 960 |
| 604 | Southern states | 24 | 381 | 28 | 25 |
| 607 | Ecophysiology | 8 | 378 | 59 | 29 |
| 607 | Herpetology | 20 | 378 | 39 | 31 |
| 607 | Wind power | 12 | 378 | 67 | 56 |
| 610 | Image Processing | 32 | 376 | 607 | 1,085 |
| 610 | complementary therapies | 20 | 376 | 410 | 594 |
| 612 | Psychiatric Nursing | 6 | 375 | 461 | 160 |
| 613 | Investments | 20 | 374 | 61 | 79 |
| 614 | Risk | 18 | 373 | 130 | 240 |
| 615 | soil management | 7 | 371 | 292 | 278 |
| 615 | Nonprofit organizations | 8 | 371 | 147 | 93 |
| 617 | Venture Capital | 10 | 367 | 93 | 300 |
| 618 | International Business | 6 | 365 | 40 | 20 |
| 618 | atmospheric models | 6 | 365 | 440 | 383 |
| 618 | Social work | 27 | 365 | 392 | 466 |
| 618 | Genetic therapy | 8 | 365 | 565 | 525 |
| 622 | Organizational learning | 7 | 364 | 148 | 60 |
| 622 | Ultrasonic Imaging | 6 | 364 | 319 | 156 |
| 624 | innovation | 10 | 363 | 262 | 442 |
| 624 | drainage | 17 | 363 | 50 | 38 |
| 624 | tillage | 6 | 363 | 244 | 233 |
| 627 | Algae | 12 | 360 | 344 | 372 |
| 628 | occupational health and safety | 30 | 358 | 21 | 34 |
| 628 | Greenhouse gases | 7 | 358 | 142 | 143 |
| 630 | Sustainable agriculture | 11 | 357 | 255 | 270 |
| 631 | Molecular Microbiology | 10 | 356 | 433 | 568 |
| 632 | fuel cells | 7 | 353 | 831 | 790 |
| 633 | North America | 29 | 352 | 133 | 212 |
| 633 | Relationships | 14 | 352 | 26 | 69 |
| 635 | Foodborne diseases | 14 | 351 | 55 | 66 |
| 635 | Vision | 7 | 351 | 413 | 337 |
| 637 | vibration | 20 | 350 | 356 | 519 |
| 637 | Asia | 26 | 350 | 720 | 895 |
| 639 | Women's health | 18 | 349 | 345 | 428 |
| 640 | Nanomedicine | 8 | 348 | 49 | 48 |
| 641 | Biogeochemistry | 12 | 347 | 508 | 656 |
| 642 | Quality Assurance | 13 | 346 | 62 | 49 |
| 643 | Dietetics | 41 | 344 | 98 | 258 |
| 644 | School Psychology | 13 | 343 | 178 | 204 |
| 645 | Nanochemistry | 11 | 341 | 524 | 414 |
| 645 | Information Systems | 15 | 341 | 466 | 562 |
| 647 | Green Technology | 7 | 340 | 140 | 67 |
| 648 | Homeostasis | 2 | 338 | 447 | 536 |
| 648 | Cell metabolism | 2 | 338 | 754 | 580 |
| 650 | Fungi | 6 | 336 | 695 | 594 |
| 651 | food service | 17 | 335 | 7 | 4 |
| 651 | Muscles | 11 | 335 | 357 | 451 |
| 653 | bioclimatology | 13 | 333 | 292 | 348 |
| 653 | labor | 2 | 333 | 430 | 110 |
| 653 | working class | 2 | 333 | 210 | 99 |
| 656 | Paleoecology | 15 | 331 | 440 | 565 |
| 656 | Chemical Ecology | 4 | 331 | 446 | 270 |
| 656 | Remote Sensing | 9 | 331 | 820 | 490 |
| 656 | homosexuality | 19 | 331 | 60 | 137 |
| 656 | pheromones | 4 | 331 | 410 | 248 |
| 661 | Project Management | 4 | 330 | 210 | 216 |
| 661 | Exercise therapy | 5 | 330 | 281 | 72 |
| 661 | Investment analysis | 12 | 330 | 296 | 320 |
| 661 | muscle strength | 5 | 330 | 34 | 22 |
| 665 | actuators | 12 | 329 | 1,114 | 1,260 |
| 665 | transducers | 12 | 329 | 1,114 | 1,260 |
| 667 | industrial relations | 12 | 326 | 375 | 296 |
| 668 | Telecommunications | 21 | 325 | 107 | 152 |
| 669 | Parasitic Diseases | 17 | 324 | 708 | 921 |
| 670 | Urology | 13 | 323 | 669 | 695 |
| 671 | Probability | 8 | 322 | 301 | 240 |
| 671 | Growth | 10 | 322 | 541 | 768 |
| 673 | Public Policy | 15 | 321 | 663 | 827 |
| 673 | Second Language Acquisition | 5 | 321 | 118 | 101 |
| 673 | Quantum theory | 12 | 321 | 472 | 414 |
| 676 | Risk Management | 8 | 319 | 316 | 252 |
| 676 | Insects | 8 | 319 | 892 | 578 |
| 678 | Nuclear Engineering | 33 | 315 | 365 | 497 |
| 678 | Photonics | 22 | 315 | 708 | 1,083 |
| 680 | Urban Economics | 12 | 314 | 103 | 199 |
| 680 | Crystal growth | 21 | 314 | 284 | 490 |
| 682 | disease vectors | 16 | 312 | 301 | 430 |
| 683 | Quantum electronics | 32 | 311 | 395 | 648 |
| 683 | soil conservation | 12 | 311 | 253 | 348 |
| 683 | Learning disabilities | 30 | 311 | 184 | 364 |
| 683 | catalytic activity | 7 | 311 | 427 | 362 |
| 687 | Nuclear Energy | 29 | 310 | 220 | 329 |
| 687 | Engineering Geology | 14 | 310 | 616 | 742 |
| 687 | Veterinary Immunology | 9 | 310 | 149 | 133 |
| 687 | Parenteral nutrition | 10 | 310 | 437 | 529 |
| 687 | Reptiles | 17 | 310 | 36 | 35 |
| 692 | Enteral nutrition | 9 | 309 | 384 | 470 |
| 693 | Landscape Ecology | 13 | 308 | 130 | 252 |
| 693 | Amphibians | 16 | 308 | 25 | 21 |
| 695 | sexual behavior | 17 | 307 | 190 | 322 |
| 696 | Organometallic compounds | 13 | 306 | 629 | 649 |
| 697 | Alternative Medicine | 13 | 305 | 545 | 681 |
| 698 | Adult Education | 11 | 304 | 222 | 127 |
| 698 | microwave communication systems | 9 | 304 | 183 | 140 |
| 698 | Broadcasting | 20 | 304 | 13 | 54 |
| 698 | Atomic spectroscopy | 10 | 304 | 604 | 464 |
| 702 | Social Media | 13 | 302 | 15 | 41 |
| 702 | Public Choice | 19 | 302 | 63 | 136 |
| 702 | Group decision making | 19 | 302 | 82 | 181 |
| 705 | Gender Studies | 16 | 301 | 100 | 181 |
| 706 | Systems Biology | 19 | 300 | 489 | 723 |
| 706 | Neuromuscular diseases | 9 | 300 | 283 | 287 |
| 708 | infection | 12 | 294 | 668 | 845 |
| 709 | Magnetic Materials | 9 | 293 | 924 | 811 |
| 709 | optical instruments | 12 | 293 | 123 | 150 |
| 709 | sex crimes | 15 | 293 | 206 | 272 |
| 712 | Fluid Dynamics | 19 | 292 | 369 | 532 |
| 712 | Product Design | 15 | 292 | 182 | 163 |
| 712 | Climate | 10 | 292 | 220 | 277 |
| 715 | Cell death | 5 | 291 | 803 | 795 |
| 716 | Mechanics | 12 | 290 | 602 | 491 |
| 716 | water supply | 9 | 290 | 444 | 545 |
| 716 | Scanning electron microscopy | 14 | 290 | 12 | 23 |
| 719 | Rock Mechanics | 9 | 288 | 497 | 502 |
| 719 | Animal Nutrition | 11 | 288 | 248 | 244 |
| 719 | Animal genetics | 10 | 288 | 266 | 276 |
| 719 | Mortgages | 13 | 288 | 55 | 79 |
| 723 | Anthropology | 48 | 286 | 293 | 623 |
| 723 | Molecular cloning | 8 | 286 | 820 | 708 |
| 723 | Genetic recombination | 8 | 286 | 807 | 694 |
| 723 | Recombinant DNA | 8 | 286 | 872 | 748 |
| 727 | Higher Education | 12 | 283 | 229 | 233 |
| 728 | Divorce | 15 | 281 | 14 | 15 |
| 729 | animal diseases | 3 | 279 | 491 | 191 |
| 730 | Journalism | 21 | 275 | 119 | 166 |
| 730 | natural products | 14 | 275 | 797 | 845 |
| 732 | Pathology | 12 | 273 | 882 | 1,079 |
| 732 | Paleoclimatology | 8 | 273 | 670 | 679 |
| 732 | cell interaction | 5 | 273 | 728 | 656 |
| 735 | Quantum Optics | 7 | 272 | 572 | 363 |
| 735 | Laser Spectroscopy | 7 | 272 | 531 | 322 |
| 737 | Child welfare | 23 | 271 | 290 | 474 |
| 738 | Forensic Psychiatry | 8 | 270 | 299 | 213 |
| 739 | Internet of Things | 7 | 269 | 689 | 704 |
| 739 | Career development | 15 | 269 | 87 | 110 |
| 739 | pain | 4 | 269 | 1,012 | 760 |
| 742 | breastfeeding | 13 | 268 | 118 | 185 |
| 743 | Medical innovations | 7 | 264 | 515 | 787 |
| 744 | Parasites | 18 | 263 | 519 | 777 |
| 745 | Cultural diversity | 8 | 262 | 84 | 102 |
| 746 | Oceanography | 9 | 261 | 966 | 981 |
| 747 | Soil Mechanics | 10 | 256 | 578 | 614 |
| 747 | Bioethics | 12 | 256 | 421 | 333 |
| 747 | Memory disorders | 7 | 256 | 147 | 133 |
| 750 | compost | 2 | 255 | 17 | 3 |
| 751 | Geotechnical Engineering | 7 | 253 | 271 | 240 |
| 751 | Radio waves | 13 | 253 | 407 | 542 |
| 751 | Communication in politics | 6 | 253 | 134 | 60 |
| 754 | Pharmacognosy | 12 | 252 | 885 | 1,229 |
| 754 | nuclear power | 12 | 252 | 196 | 135 |
| 754 | Elections | 13 | 252 | 132 | 147 |
| 757 | Informatics | 8 | 251 | 473 | 469 |
| 758 | Travel | 13 | 250 | 250 | 302 |
| 759 | Environmental Geology | 15 | 248 | 643 | 975 |
| 759 | soil pollution | 9 | 248 | 189 | 200 |
| 761 | Cell differentiation | 8 | 247 | 833 | 1,058 |
| 761 | weather forecasting | 16 | 247 | 49 | 109 |
| 763 | Adolescent Medicine | 4 | 246 | 402 | 503 |
| 764 | Animal Biotechnology | 1 | 245 | 336 | 63 |
| 764 | Environmental Law | 5 | 245 | 810 | 932 |
| 764 | Cognitive Behavioral Therapy | 9 | 245 | 53 | 70 |
| 764 | Computational Fluid Dynamics | 13 | 245 | 230 | 300 |
| 768 | Ethics | 14 | 244 | 329 | 328 |
| 768 | world | 9 | 244 | 336 | 552 |
| 770 | African Americans | 11 | 243 | 54 | 37 |
| 771 | Statistical models | 1 | 242 | 205 | 30 |
| 772 | Engineering Economics | 9 | 241 | 25 | 9 |
| 772 | Medical Ethics | 12 | 241 | 502 | 426 |
| 772 | Water quality management | 23 | 241 | 513 | 883 |
| 772 | Global warming | 3 | 241 | 134 | 62 |
| 776 | sports administration | 11 | 240 | 92 | 116 |
| 777 | Climate Change Mitigation | 1 | 239 | 95 | 60 |
| 777 | viruses | 12 | 239 | 589 | 917 |
| 777 | sea level | 1 | 239 | 95 | 60 |
| 777 | biomedicine | 10 | 239 | 151 | 258 |
| 781 | General Surgery | 21 | 237 | 184 | 228 |
| 781 | machinery | 7 | 237 | 481 | 321 |
| 781 | economic analysis | 1 | 237 | 495 | 87 |
| 784 | Seaweed | 7 | 235 | 351 | 384 |
| 785 | Electronic Packaging | 7 | 234 | 113 | 79 |
| 785 | Radiation | 13 | 234 | 1,003 | 1,015 |
| 785 | Real Estate Investment | 15 | 234 | 34 | 53 |
| 785 | histological techniques | 5 | 234 | 491 | 482 |
| 789 | biological factors | 8 | 233 | 1,133 | 1,059 |
| 789 | Reading | 21 | 233 | 150 | 318 |
| 789 | Product life cycle | 4 | 233 | 223 | 168 |
| 792 | Geodesy | 2 | 232 | 968 | 335 |
| 792 | Sonochemistry | 8 | 232 | 294 | 547 |
| 794 | Electromagnetic waves | 6 | 231 | 177 | 77 |
| 794 | Cell communication | 4 | 231 | 465 | 423 |
| 796 | Queer Studies | 10 | 230 | 73 | 131 |
| 796 | Nonlinear functional analysis | 16 | 230 | 417 | 537 |
| 796 | Radiobiology | 7 | 230 | 722 | 691 |
| 796 | election law | 10 | 230 | 99 | 119 |
| 800 | Paleobiology | 8 | 228 | 165 | 77 |
| 800 | mutation | 9 | 228 | 249 | 387 |
| 800 | Political Participation | 9 | 228 | 149 | 170 |
| 800 | Voting | 9 | 228 | 108 | 116 |
| 804 | Immunochemistry | 10 | 227 | 434 | 477 |
| 805 | Microfabrication | 7 | 226 | 162 | 136 |
| 806 | Cosmology | 2 | 225 | 750 | 378 |
| 806 | nuclear astrophysics | 2 | 225 | 583 | 309 |
| 808 | Electrochemical Analysis | 15 | 224 | 677 | 954 |
| 808 | Inflammation | 4 | 224 | 896 | 808 |
| 810 | cytokines | 5 | 223 | 850 | 788 |
| 810 | green products | 5 | 223 | 161 | 171 |
| 812 | Humanities | 24 | 222 | 349 | 566 |
| 813 | enzymes | 8 | 221 | 859 | 943 |
| 814 | Social policy | 6 | 220 | 709 | 456 |
| 815 | Cosmochemistry | 14 | 219 | 343 | 590 |
| 815 | Thorax | 5 | 219 | 275 | 269 |
| 817 | Bioinorganic chemistry | 14 | 218 | 658 | 851 |
| 818 | Adsorption | 5 | 217 | 118 | 74 |
| 819 | Industry | 3 | 216 | 159 | 206 |
| 820 | weather | 8 | 214 | 259 | 318 |
| 821 | Community Psychiatry | 8 | 213 | 494 | 584 |
| 822 | Cartography | 1 | 212 | 865 | 121 |
| 823 | Computer Science | 8 | 211 | 1,270 | 949 |
| 823 | cell adhesion molecules | 3 | 211 | 166 | 175 |
| 823 | drug abuse | 13 | 211 | 224 | 317 |
| 823 | school psychologists | 7 | 211 | 111 | 153 |
| 827 | African American | 6 | 210 | 69 | 29 |
| 828 | Intercultural Communication | 9 | 209 | 155 | 214 |
| 828 | Wireless Communication Systems | 16 | 209 | 1,055 | 1,349 |
| 830 | Freshwater Ecology | 10 | 208 | 63 | 37 |
| 831 | medical education | 20 | 207 | 565 | 915 |
| 832 | Nursing | 20 | 206 | 654 | 882 |
| 832 | Psychosomatic Medicine | 11 | 206 | 333 | 534 |
| 834 | Sports Psychology | 7 | 204 | 52 | 84 |
| 834 | ethnicity | 20 | 204 | 154 | 241 |
| 834 | freshwater biology | 11 | 204 | 379 | 525 |
| 837 | Electromagnetism | 12 | 203 | 465 | 538 |
| 837 | Hormones | 10 | 203 | 625 | 820 |
| 837 | Psychiatric hospitals | 6 | 203 | 191 | 159 |
| 837 | DNA polymerases | 2 | 203 | 441 | 480 |
| 841 | Industrial Microbiology | 11 | 202 | 934 | 1,437 |
| 841 | probabilities | 24 | 202 | 460 | 577 |
| 843 | Structural dynamics | 11 | 200 | 480 | 741 |
| 843 | Stochastic Processes | 7 | 200 | 559 | 377 |
| 843 | Forecasting | 9 | 200 | 210 | 284 |
| 843 | Energy Consumption | 2 | 200 | 489 | 320 |
| 843 | city planning | 17 | 200 | 593 | 936 |
| 848 | Educational Sociology | 4 | 198 | 297 | 147 |
| 848 | Performance | 8 | 198 | 154 | 206 |
| 850 | Pharmacogenetics | 6 | 197 | 562 | 602 |
| 851 | Diagnostic Imaging | 19 | 196 | 602 | 1,011 |
| 851 | Diagnostic microbiology | 3 | 196 | 963 | 984 |
| 853 | Early Childhood Education | 7 | 195 | 364 | 277 |
| 854 | Simulation Methods | 18 | 194 | 207 | 478 |
| 854 | Culture | 22 | 194 | 293 | 420 |
| 856 | Multivariate Analysis | 15 | 193 | 157 | 292 |
| 856 | forestry | 2 | 193 | 277 | 122 |
| 858 | Sociolinguistics | 6 | 192 | 300 | 217 |
| 858 | Aggression | 4 | 192 | 402 | 371 |
| 860 | Radiography | 7 | 191 | 417 | 643 |
| 861 | Criminology | 11 | 190 | 499 | 508 |
| 862 | Capital market | 3 | 189 | 441 | 270 |
| 862 | Social problems | 10 | 189 | 283 | 438 |
| 862 | women | 23 | 189 | 163 | 283 |
| 862 | Liver diseases | 3 | 189 | 1,038 | 964 |
| 866 | Nephrology | 4 | 188 | 386 | 403 |
| 866 | Kidney diseases | 4 | 188 | 700 | 552 |
| 868 | Recycling | 8 | 187 | 283 | 713 |
| 869 | Pediatric Neurology | 2 | 186 | 828 | 775 |
| 869 | Literacy | 16 | 186 | 66 | 124 |
| 871 | Physical Geography | 8 | 185 | 225 | 276 |
| 871 | Land use | 8 | 185 | 633 | 828 |
| 871 | Oral communication | 26 | 185 | 46 | 190 |
| 874 | Bacterial infections | 3 | 184 | 715 | 666 |
| 875 | Clinical Immunology | 6 | 182 | 662 | 712 |
| 876 | Ion Exchange | 7 | 181 | 53 | 44 |
| 876 | Cross-Cultural Studies | 8 | 181 | 336 | 370 |
| 876 | Educational Innovation | 3 | 181 | 60 | 12 |
| 876 | Solvent extraction | 7 | 181 | 53 | 44 |
| 880 | Arts | 17 | 178 | 70 | 80 |
| 880 | food handling | 8 | 178 | 454 | 733 |
| 880 | Middle East | 10 | 178 | 472 | 373 |
| 880 | Zoonoses | 8 | 178 | 98 | 173 |
| 884 | Forest Ecology | 8 | 177 | 593 | 774 |
| 884 | Religion | 12 | 177 | 371 | 218 |
| 884 | Nationalism | 7 | 177 | 183 | 101 |
| 884 | mycoses | 2 | 177 | 870 | 682 |
| 888 | Food Policy | 8 | 176 | 140 | 260 |
| 888 | Pesticide residues | 3 | 176 | 48 | 58 |
| 888 | solar power | 2 | 176 | 1,005 | 709 |
| 888 | solar cells | 2 | 176 | 1,072 | 757 |
| 892 | Computer Graphics | 7 | 175 | 1,135 | 1,048 |
| 893 | agricultural policy | 7 | 174 | 104 | 224 |
| 893 | Financial Institutions | 6 | 174 | 213 | 203 |
| 893 | cultural pluralism | 5 | 174 | 295 | 166 |
| 896 | Neurosurgery | 5 | 172 | 672 | 642 |
| 896 | Fashion | 9 | 172 | 53 | 54 |
| 898 | Atmospheric Chemistry | 6 | 171 | 607 | 784 |
| 898 | Social Issues | 8 | 171 | 118 | 183 |
| 898 | fertility | 9 | 171 | 479 | 710 |
| 901 | Behavioral Finance | 4 | 170 | 20 | 11 |
| 901 | exobiology | 4 | 170 | 221 | 258 |
| 903 | Language Disorders | 29 | 169 | 196 | 525 |
| 903 | Ethnic relations | 12 | 169 | 197 | 243 |
| 903 | Crisis Intervention | 5 | 169 | 77 | 74 |
| 906 | Animal husbandry | 9 | 168 | 130 | 161 |
| 906 | Algal blooms | 5 | 168 | 171 | 239 |
| 906 | Cyanobacteria | 5 | 168 | 171 | 239 |
| 906 | microalgae | 5 | 168 | 171 | 239 |
| 910 | Symbolic interactionism | 4 | 167 | 88 | 55 |
| 910 | Sites | 7 | 167 | 335 | 450 |
| 912 | Altitude Sickness | 2 | 165 | 168 | 55 |
| 912 | Forest Management | 6 | 165 | 671 | 754 |
| 912 | Altitude | 2 | 165 | 168 | 55 |
| 915 | Occupational Health | 8 | 164 | 548 | 554 |
| 915 | Total Quality Management | 10 | 164 | 151 | 290 |
| 915 | Job satisfaction | 2 | 164 | 145 | 138 |
| 915 | Work | 2 | 164 | 457 | 201 |
| 915 | job stress | 2 | 164 | 145 | 138 |
| 920 | Infections | 4 | 163 | 843 | 896 |
| 921 | Geriatric Medicine | 27 | 162 | 5 | 79 |
| 922 | Industrial Ecology | 2 | 161 | 218 | 174 |
| 923 | Marine Pollution | 4 | 159 | 1,032 | 1,033 |
| 923 | Transgenic plants | 3 | 159 | 401 | 322 |
| 923 | Invertebrates | 7 | 159 | 343 | 365 |
| 926 | Immunopathology | 5 | 157 | 794 | 842 |
| 926 | Aquaculture | 8 | 157 | 871 | 992 |
| 928 | Raman spectroscopy | 13 | 156 | 268 | 536 |
| 928 | dissociative disorders | 3 | 156 | 98 | 56 |
| 928 | Developed countries | 2 | 156 | 264 | 172 |
| 931 | Hearing | 31 | 155 | 151 | 428 |
| 932 | Tissue Engineering | 3 | 154 | 344 | 245 |
| 932 | Ceramic materials | 8 | 154 | 813 | 916 |
| 934 | Parallel Processing | 8 | 153 | 242 | 379 |
| 934 | Biofilms | 3 | 153 | 160 | 162 |
| 934 | Body Image | 1 | 153 | 378 | 213 |
| 934 | Aquatic ecology | 10 | 153 | 455 | 616 |
| 938 | Histochemistry | 4 | 152 | 849 | 675 |
| 938 | Ethnology | 14 | 152 | 566 | 731 |
| 940 | History | 18 | 151 | 350 | 230 |
| 940 | Aesthetics | 8 | 151 | 65 | 23 |
| 940 | Zeolites | 8 | 151 | 519 | 850 |
| 940 | administrative agencies | 5 | 151 | 196 | 184 |
| 944 | Differential Equations | 13 | 150 | 477 | 618 |
| 944 | Communication and Culture | 12 | 150 | 59 | 101 |
| 944 | Primates | 7 | 150 | 417 | 443 |
| 947 | impact | 3 | 149 | 292 | 286 |
| 948 | gene therapy | 1 | 148 | 1,236 | 779 |
| 948 | Sedimentary rocks | 3 | 148 | 630 | 481 |
| 950 | Professional ethics | 7 | 147 | 95 | 144 |
| 950 | Instructional materials | 1 | 147 | 132 | 23 |
| 952 | Industrial Organization | 6 | 145 | 203 | 218 |
| 952 | Industrial Policy | 6 | 145 | 328 | 360 |
| 954 | Hydraulic Engineering | 19 | 144 | 299 | 591 |
| 954 | Risk assessment | 7 | 144 | 309 | 330 |
| 954 | nuclear magnetic resonance | 5 | 144 | 743 | 607 |
| 954 | Spine | 6 | 144 | 417 | 548 |
| 958 | Macroeconomics | 7 | 143 | 184 | 208 |
| 958 | atmosphere | 5 | 143 | 552 | 616 |
| 958 | Mites | 13 | 143 | 114 | 184 |
| 961 | Multicultural Education | 11 | 141 | 127 | 193 |
| 961 | disabilities | 9 | 141 | 329 | 466 |
| 963 | water reuse | 5 | 140 | 182 | 248 |
| 964 | Engineering Ethics | 5 | 139 | 114 | 125 |
| 964 | health services accessibility | 3 | 139 | 886 | 625 |
| 964 | Political Parties | 10 | 139 | 71 | 148 |
| 964 | Supramolecular chemistry | 14 | 139 | 37 | 79 |
| 964 | Photobiology | 11 | 139 | 603 | 1,045 |
| 964 | Self | 9 | 139 | 50 | 131 |
| 970 | Welfare Economics | 1 | 138 | 679 | 326 |
| 970 | Government policy | 1 | 138 | 316 | 136 |
| 972 | Topology | 5 | 137 | 252 | 145 |
| 972 | visualization | 24 | 137 | 425 | 599 |
| 974 | Turbulence | 9 | 135 | 100 | 142 |
| 975 | Discourse Analysis | 2 | 134 | 494 | 276 |
| 975 | Health Risk Assessment | 6 | 134 | 224 | 247 |
| 977 | Evidence-Based Medicine | 19 | 133 | 148 | 513 |
| 977 | Human Resources | 3 | 133 | 467 | 501 |
| 977 | autism spectrum disorder | 2 | 133 | 82 | 35 |
| 980 | Palliative Care | 7 | 132 | 461 | 475 |
| 980 | Viticulture | 3 | 132 | 123 | 78 |
| 980 | Fracture mechanics | 13 | 132 | 669 | 1,042 |
| 980 | Wine | 3 | 132 | 41 | 18 |
| 980 | concrete | 2 | 132 | 1,082 | 967 |
| 985 | Highway Engineering | 10 | 131 | 156 | 243 |
| 985 | at-risk youth | 4 | 131 | 81 | 133 |
| 987 | Functional Analysis | 12 | 130 | 715 | 872 |
| 987 | Neuropsychiatry | 7 | 130 | 486 | 629 |
| 987 | Nutritional support | 1 | 130 | 296 | 184 |
| 987 | Tropical Medicine | 8 | 130 | 1,019 | 1,167 |
| 991 | Hardware | 2 | 129 | 4 | 1 |
| 992 | Organometallic chemistry | 8 | 128 | 1,373 | 1,458 |
| 992 | women's rights | 18 | 128 | 17 | 84 |
| 992 | analysis | 2 | 128 | 429 | 337 |
| 995 | Cost control | 3 | 127 | 114 | 69 |
| 995 | child sexual abuse | 8 | 127 | 31 | 84 |
| 995 | Transplantation | 4 | 127 | 708 | 781 |
| 995 | Genes | 6 | 127 | 726 | 841 |
| 999 | Aerospace Engineering | 8 | 126 | 117 | 113 |
| 999 | Religion and Psychology | 11 | 126 | 147 | 248 |