| 1 | Science | 512 | 44.1K | 533 | 456 |
| 2 | Biology | 432 | 41.5K | 571 | 476 |
| 3 | Biochemistry | 929 | 38.1K | 429 | 390 |
| 4 | Physics | 343 | 32.1K | 892 | 635 |
| 5 | Molecular Biology | 522 | 31.2K | 464 | 392 |
| 6 | Neurology | 643 | 24.2K | 246 | 315 |
| 7 | Natural history | 48 | 23.0K | 646 | 403 |
| 8 | Cell Biology | 217 | 19.5K | 333 | 281 |
| 9 | Cytology | 309 | 18.7K | 293 | 298 |
| 10 | Medicine | 535 | 18.7K | 540 | 574 |
| 11 | Chemistry | 420 | 17.1K | 839 | 832 |
| 12 | Human genetics | 252 | 17.0K | 101 | 260 |
| 13 | Medical genetics | 380 | 14.7K | 89 | 173 |
| 14 | Research | 576 | 13.8K | 397 | 517 |
| 15 | Biophysics | 353 | 11.5K | 402 | 405 |
| 16 | Genetics | 177 | 11.1K | 296 | 309 |
| 17 | Microbiology | 186 | 9.6K | 684 | 633 |
| 18 | plant molecular biology | 102 | 9.2K | 128 | 118 |
| 19 | Oncology | 23 | 9.1K | 593 | 194 |
| 20 | Botany | 101 | 7.0K | 635 | 444 |
| 21 | Immunology | 131 | 6.8K | 382 | 375 |
| 21 | Plant cells | 49 | 6.8K | 221 | 182 |
| 23 | Brain | 276 | 6.8K | 153 | 252 |
| 24 | Plants | 62 | 6.6K | 287 | 168 |
| 25 | Cardiovascular diseases | 173 | 6.3K | 43 | 38 |
| 26 | Virology | 70 | 6.1K | 468 | 432 |
| 27 | Cytogenetics | 80 | 5.7K | 126 | 140 |
| 28 | Pharmacology | 293 | 5.3K | 423 | 598 |
| 29 | Neurophysiology | 101 | 4.8K | 418 | 419 |
| 30 | Pathology | 110 | 4.6K | 233 | 240 |
| 31 | Liver diseases | 74 | 4.3K | 169 | 222 |
| 32 | Plant physiology | 69 | 4.3K | 301 | 250 |
| 33 | Pediatric Neurology | 144 | 4.2K | 28 | 132 |
| 34 | Endocrinology | 111 | 4.1K | 376 | 452 |
| 35 | Histology | 115 | 4.1K | 120 | 149 |
| 36 | Developmental Biology | 71 | 4.1K | 291 | 298 |
| 37 | Cancer | 126 | 4.0K | 373 | 472 |
| 38 | Genes | 93 | 4.0K | 33 | 23 |
| 39 | Physiology | 122 | 3.8K | 545 | 568 |
| 40 | Surgery | 55 | 3.7K | 266 | 291 |
| 41 | arthritis | 39 | 3.6K | 231 | 154 |
| 42 | Metabolic diseases | 39 | 3.5K | 500 | 389 |
| 43 | Ophthalmology | 66 | 3.4K | 285 | 206 |
| 44 | Nervous system | 61 | 3.4K | 397 | 346 |
| 45 | Hypertension | 72 | 3.4K | 212 | 282 |
| 46 | Immunity | 36 | 3.4K | 429 | 409 |
| 47 | Molecular Genetics | 66 | 3.3K | 233 | 253 |
| 48 | Hematology | 128 | 3.2K | 327 | 395 |
| 49 | Plant genetic engineering | 73 | 3.1K | 46 | 60 |
| 50 | Genomics | 102 | 3.0K | 317 | 386 |
| 51 | Embryology | 64 | 3.0K | 233 | 258 |
| 52 | Diabetes | 114 | 2.9K | 190 | 340 |
| 53 | Biotechnology | 97 | 2.8K | 915 | 1142 |
| 54 | Anatomy | 54 | 2.8K | 345 | 264 |
| 55 | Plant Genetics | 46 | 2.8K | 54 | 63 |
| 56 | Cell differentiation | 47 | 2.8K | 304 | 349 |
| 57 | Psychiatry | 66 | 2.8K | 764 | 697 |
| 58 | Signal Transduction | 57 | 2.7K | 131 | 191 |
| 59 | Molecular structure | 37 | 2.6K | 528 | 266 |
| 60 | Growth | 47 | 2.6K | 200 | 252 |
| 61 | Cell division | 50 | 2.5K | 16 | 16 |
| 62 | Cell metabolism | 11 | 2.5K | 235 | 159 |
| 63 | Homeostasis | 8 | 2.5K | 192 | 156 |
| 64 | Biomechanics | 49 | 2.5K | 186 | 163 |
| 65 | Gene expression | 48 | 2.5K | 16 | 16 |
| 66 | Nutrition | 86 | 2.4K | 595 | 695 |
| 67 | Environment | 35 | 2.4K | 1329 | 1228 |
| 68 | Pediatrics | 130 | 2.4K | 205 | 385 |
| 69 | Child | 144 | 2.4K | 153 | 254 |
| 70 | Breeding | 44 | 2.4K | 190 | 105 |
| 71 | Neurochemistry | 93 | 2.3K | 309 | 440 |
| 72 | Orthopedics | 77 | 2.3K | 162 | 153 |
| 73 | Bacteriology | 51 | 2.3K | 350 | 371 |
| 74 | Rheumatology | 35 | 2.3K | 208 | 179 |
| 75 | Diabetes mellitus | 92 | 2.3K | 209 | 375 |
| 76 | Bioengineering | 72 | 2.2K | 723 | 925 |
| 77 | Metabolism | 73 | 2.2K | 431 | 582 |
| 78 | Toxicology | 71 | 2.2K | 828 | 871 |
| 79 | nucleic acids | 59 | 2.0K | 278 | 440 |
| 80 | Child Development | 116 | 2.0K | 180 | 341 |
| 81 | Genetic regulation | 20 | 1.9K | 299 | 204 |
| 82 | proteins | 67 | 1.9K | 239 | 296 |
| 83 | Reproduction | 49 | 1.8K | 440 | 368 |
| 84 | Hemodynamics | 27 | 1.8K | 139 | 123 |
| 85 | Muscles | 18 | 1.8K | 230 | 100 |
| 86 | Sports Medicine | 24 | 1.8K | 824 | 426 |
| 87 | Gene expression regulation | 11 | 1.8K | 389 | 152 |
| 88 | Immunotherapy | 15 | 1.7K | 652 | 362 |
| 89 | Geriatrics | 52 | 1.7K | 529 | 453 |
| 90 | Gastrointestinal diseases | 38 | 1.6K | 33 | 16 |
| 91 | Cardiovascular system | 25 | 1.6K | 415 | 444 |
| 92 | Immunogenetics | 44 | 1.6K | 51 | 51 |
| 93 | Antigens | 43 | 1.6K | 84 | 81 |
| 94 | Organic Chemistry | 50 | 1.5K | 807 | 723 |
| 95 | Developmental Genetics | 8 | 1.5K | 258 | 155 |
| 96 | Psychophysiology | 41 | 1.5K | 727 | 734 |
| 97 | Radiobiology | 51 | 1.5K | 199 | 241 |
| 98 | genome | 21 | 1.5K | 421 | 402 |
| 99 | Urology | 63 | 1.5K | 247 | 302 |
| 100 | Oncogenes | 18 | 1.5K | 377 | 337 |
| 101 | Respiration | 25 | 1.5K | 416 | 292 |
| 102 | viral genetics | 5 | 1.5K | 182 | 128 |
| 103 | Immune system | 8 | 1.4K | 497 | 332 |
| 104 | viruses | 24 | 1.4K | 393 | 376 |
| 105 | protein | 45 | 1.4K | 160 | 214 |
| 106 | Neurobiology | 40 | 1.4K | 399 | 512 |
| 107 | Physical Chemistry | 44 | 1.4K | 497 | 556 |
| 108 | Medical Oncology | 39 | 1.4K | 335 | 364 |
| 109 | Genetic engineering | 36 | 1.3K | 425 | 494 |
| 110 | Sports | 9 | 1.3K | 1184 | 407 |
| 111 | Mental Disorders | 28 | 1.3K | 746 | 682 |
| 112 | Geophysics | 38 | 1.3K | 974 | 910 |
| 112 | Plant breeding | 27 | 1.3K | 118 | 68 |
| 112 | drug therapy | 60 | 1.3K | 364 | 461 |
| 115 | Plant Ecology | 13 | 1.2K | 793 | 490 |
| 116 | Systems Biology | 35 | 1.2K | 274 | 233 |
| 117 | Medical Microbiology | 27 | 1.2K | 610 | 641 |
| 118 | Bioorganic chemistry | 31 | 1.2K | 860 | 711 |
| 119 | Ecology | 27 | 1.2K | 2121 | 2087 |
| 120 | Microbial Ecology | 18 | 1.2K | 809 | 729 |
| 121 | Analytical Chemistry | 42 | 1.2K | 1278 | 1299 |
| 122 | Japan | 94 | 1.1K | 118 | 165 |
| 123 | Pharmaceutical Chemistry | 63 | 1.1K | 720 | 1001 |
| 124 | Genetic therapy | 28 | 1.1K | 229 | 226 |
| 125 | gene therapy | 25 | 1.1K | 231 | 235 |
| 126 | United Kingdom | 18 | 1.1K | 506 | 399 |
| 127 | Neurons | 9 | 1.1K | 296 | 390 |
| 128 | Comparative Physiology | 23 | 1.1K | 202 | 161 |
| 129 | Neuromuscular diseases | 5 | 1.0K | 416 | 114 |
| 130 | Recombinant DNA | 29 | 1.0K | 310 | 264 |
| 131 | Immunopathology | 36 | 1.0K | 263 | 304 |
| 132 | Mass Spectrometry | 73 | 1.0K | 76 | 223 |
| 133 | Vaccines | 45 | 1.0K | 277 | 344 |
| 134 | DNS | 19 | 1.0K | 67 | 33 |
| 135 | Therapeutics | 49 | 1.0K | 285 | 426 |
| 136 | Seismology | 16 | 987 | 144 | 81 |
| 137 | Neuropsychology | 42 | 967 | 534 | 633 |
| 138 | Biochemical Engineering | 3 | 960 | 2705 | 1384 |
| 139 | Agricultural Chemistry | 45 | 956 | 395 | 572 |
| 140 | Biocompatible Materials | 30 | 927 | 1200 | 1401 |
| 141 | Allergy | 14 | 926 | 422 | 460 |
| 142 | Molecular cloning | 24 | 918 | 341 | 278 |
| 142 | Genetic recombination | 24 | 918 | 330 | 272 |
| 144 | Critical Care Medicine | 22 | 892 | 428 | 542 |
| 145 | Critical Care | 21 | 891 | 441 | 542 |
| 146 | Stem cells | 34 | 851 | 307 | 438 |
| 147 | gene mapping | 21 | 850 | 585 | 585 |
| 148 | Obesity | 30 | 848 | 489 | 610 |
| 149 | Animal Behavior | 23 | 839 | 616 | 646 |
| 150 | Psychopharmacology | 21 | 838 | 464 | 494 |
| 151 | United States | 23 | 823 | 1654 | 1298 |
| 152 | Extracellular matrix | 1 | 816 | 375 | 70 |
| 152 | collagen | 1 | 816 | 396 | 72 |
| 154 | Chromosome mapping | 19 | 810 | 569 | 529 |
| 155 | carcinogens | 19 | 786 | 233 | 253 |
| 156 | Sarcopenia | 13 | 748 | 78 | 94 |
| 157 | Condensed Matter | 43 | 738 | 966 | 1123 |
| 158 | Solid State Physics | 51 | 737 | 1097 | 1273 |
| 158 | Aging | 30 | 737 | 730 | 789 |
| 160 | Dermatology | 20 | 725 | 572 | 471 |
| 161 | Clinical Immunology | 23 | 719 | 294 | 315 |
| 161 | Europe | 23 | 719 | 994 | 783 |
| 163 | Digestive system diseases | 24 | 712 | 246 | 224 |
| 164 | Clinical Chemistry | 27 | 709 | 772 | 898 |
| 165 | Leukemia | 20 | 698 | 313 | 389 |
| 166 | Diagnostic Imaging | 26 | 682 | 483 | 532 |
| 167 | Environmental Health | 17 | 679 | 2152 | 2008 |
| 168 | Surface Chemistry | 19 | 675 | 1644 | 1501 |
| 168 | infection | 44 | 675 | 264 | 534 |
| 170 | Orthopedic Surgery | 20 | 670 | 187 | 156 |
| 171 | Reproductive toxicology | 14 | 664 | 81 | 80 |
| 172 | Transplantation | 12 | 656 | 432 | 379 |
| 173 | nuclear magnetic resonance | 29 | 655 | 280 | 285 |
| 174 | Hormones | 24 | 642 | 357 | 429 |
| 175 | Histochemistry | 22 | 635 | 281 | 259 |
| 176 | Mathematics | 41 | 630 | 2070 | 1722 |
| 177 | Biomedical Engineering | 36 | 622 | 1410 | 1821 |
| 178 | Mathematical Physics | 34 | 618 | 912 | 887 |
| 179 | Chemotherapy | 43 | 613 | 218 | 381 |
| 180 | Nuclear Medicine | 17 | 609 | 321 | 280 |
| 181 | Technology | 60 | 601 | 703 | 1217 |
| 182 | Pollution | 18 | 591 | 2245 | 2417 |
| 183 | Parenteral nutrition | 21 | 587 | 264 | 346 |
| 184 | Long-Term Care | 11 | 583 | 201 | 181 |
| 184 | Long-term care facilities | 11 | 583 | 198 | 181 |
| 186 | Mental illness | 11 | 578 | 832 | 777 |
| 187 | Planets | 34 | 577 | 435 | 693 |
| 188 | Diet | 25 | 575 | 546 | 850 |
| 189 | Enteral nutrition | 19 | 567 | 214 | 295 |
| 190 | Photochemistry | 14 | 560 | 711 | 551 |
| 191 | Molecular Imaging | 12 | 556 | 236 | 235 |
| 192 | Plant tissue culture | 8 | 542 | 358 | 160 |
| 192 | Plant cell culture | 8 | 542 | 307 | 157 |
| 194 | cell physiology | 11 | 541 | 673 | 688 |
| 195 | Lipids | 12 | 530 | 546 | 535 |
| 196 | Membranes | 23 | 514 | 599 | 825 |
| 197 | Computational Biology | 8 | 509 | 1388 | 910 |
| 198 | Neurosurgery | 15 | 502 | 368 | 353 |
| 199 | Catalysis | 20 | 494 | 1569 | 1756 |
| 199 | Psychosomatic Medicine | 8 | 494 | 394 | 296 |
| 199 | actuators | 9 | 494 | 1294 | 979 |
| 199 | transducers | 9 | 494 | 1294 | 979 |
| 203 | Proteome | 19 | 489 | 334 | 488 |
| 204 | diseases | 1 | 483 | 535 | 391 |
| 204 | Disease | 1 | 483 | 530 | 388 |
| 206 | Crystallography | 52 | 469 | 258 | 341 |
| 207 | Colloids | 14 | 468 | 1830 | 1797 |
| 208 | Radiation | 24 | 466 | 652 | 629 |
| 209 | Obstetrics | 34 | 461 | 551 | 767 |
| 209 | Women's health | 9 | 461 | 579 | 313 |
| 211 | nuclear magnetic resonance spectroscopy | 22 | 459 | 178 | 202 |
| 212 | Artificial Organs | 36 | 456 | 80 | 138 |
| 213 | Electrophysiology | 21 | 450 | 274 | 277 |
| 214 | Diagnostic microbiology | 10 | 448 | 511 | 632 |
| 215 | mycoses | 4 | 436 | 594 | 420 |
| 216 | Spectrum analysis | 49 | 435 | 1125 | 1835 |
| 217 | Autoimmune diseases | 14 | 432 | 186 | 252 |
| 218 | Host-parasite interactions | 5 | 428 | 797 | 687 |
| 219 | Clinical Pharmacology | 19 | 424 | 414 | 451 |
| 220 | Plant Biotechnology | 30 | 423 | 106 | 265 |
| 221 | Epidemiology | 27 | 422 | 1001 | 1309 |
| 221 | Molecular evolution | 10 | 422 | 698 | 708 |
| 223 | Materials | 28 | 417 | 2100 | 2470 |
| 224 | Histocompatibility Testing | 13 | 414 | 143 | 115 |
| 225 | Statistical physics | 28 | 409 | 1235 | 1443 |
| 226 | Neurogenetics | 6 | 407 | 149 | 54 |
| 227 | Zoology | 33 | 406 | 697 | 872 |
| 228 | Analytical Biochemistry | 19 | 398 | 528 | 662 |
| 229 | Nanotechnology | 15 | 397 | 2195 | 2344 |
| 230 | Pancreatic diseases | 18 | 395 | 71 | 97 |
| 231 | Carcinogenesis | 11 | 393 | 376 | 441 |
| 231 | mutagens | 13 | 393 | 271 | 396 |
| 233 | Pharmacy | 20 | 391 | 708 | 876 |
| 233 | Infertility | 12 | 391 | 371 | 460 |
| 233 | fertility | 12 | 391 | 402 | 491 |
| 236 | Oxidative stress | 4 | 389 | 685 | 542 |
| 236 | Cellular senescence | 4 | 389 | 194 | 205 |
| 238 | Respiratory Infections | 35 | 385 | 15 | 69 |
| 239 | drugs | 19 | 384 | 659 | 821 |
| 240 | Economics | 28 | 383 | 1449 | 1595 |
| 241 | biological evolution | 9 | 382 | 1065 | 1090 |
| 242 | Magnetic Resonance Spectroscopy | 13 | 366 | 527 | 416 |
| 243 | Microorganisms | 9 | 365 | 497 | 604 |
| 244 | Photobiology | 6 | 352 | 941 | 546 |
| 245 | Statistics | 39 | 343 | 723 | 952 |
| 245 | Optics | 20 | 343 | 1788 | 1641 |
| 247 | Asia | 27 | 341 | 685 | 874 |
| 248 | Spine | 14 | 340 | 242 | 338 |
| 249 | Computational Chemistry | 17 | 338 | 169 | 318 |
| 249 | Morphology | 18 | 338 | 246 | 267 |
| 251 | Public Health | 24 | 337 | 1654 | 2174 |
| 252 | Thrombosis | 12 | 335 | 448 | 472 |
| 253 | histological techniques | 9 | 333 | 342 | 370 |
| 253 | Informatics | 18 | 333 | 193 | 353 |
| 255 | Schizophrenia | 11 | 329 | 440 | 524 |
| 255 | Steroids | 10 | 329 | 441 | 411 |
| 257 | Crystal growth | 30 | 326 | 180 | 432 |
| 258 | Phylogeny | 7 | 325 | 535 | 510 |
| 259 | Geodynamics | 7 | 324 | 571 | 497 |
| 260 | Bioinformatics | 5 | 321 | 1438 | 964 |
| 261 | Water pollution | 6 | 318 | 1820 | 1584 |
| 261 | X-ray crystallography | 39 | 318 | 53 | 150 |
| 263 | Autoantibodies | 11 | 316 | 205 | 288 |
| 263 | Autoimmunity | 11 | 316 | 309 | 411 |
| 265 | Electrophoresis | 12 | 312 | 746 | 749 |
| 266 | Environmental Toxicology | 7 | 310 | 1524 | 1385 |
| 267 | enzymes | 12 | 306 | 680 | 762 |
| 268 | Psychology | 16 | 301 | 2075 | 2088 |
| 268 | Environmental Microbiology | 4 | 301 | 1086 | 889 |
| 270 | Electrochemistry | 6 | 300 | 2552 | 1832 |
| 270 | environmental pollution | 12 | 300 | 2182 | 2576 |
| 270 | chromatin | 3 | 300 | 105 | 66 |
| 273 | liver | 10 | 298 | 94 | 74 |
| 274 | Physical Therapy | 5 | 297 | 898 | 660 |
| 275 | Pharmacogenetics | 9 | 293 | 422 | 459 |
| 276 | Developmental Neurobiology | 9 | 290 | 200 | 175 |
| 277 | Health | 16 | 287 | 785 | 943 |
| 277 | gastrointestinal tract | 2 | 287 | 387 | 231 |
| 279 | Bacterial infections | 2 | 282 | 842 | 530 |
| 280 | vascular diseases | 6 | 277 | 435 | 422 |
| 281 | Medical Laboratory Science | 16 | 271 | 754 | 1216 |
| 282 | Atmospheric Chemistry | 5 | 270 | 614 | 613 |
| 282 | Atmospheric Physics | 5 | 270 | 1065 | 859 |
| 284 | Visual Perception | 9 | 268 | 760 | 753 |
| 284 | Memory | 9 | 268 | 862 | 889 |
| 284 | Attention | 9 | 268 | 802 | 792 |
| 284 | Perception | 9 | 268 | 883 | 866 |
| 288 | Proteomics | 15 | 265 | 366 | 626 |
| 289 | Heterocyclic compounds | 22 | 264 | 213 | 239 |
| 290 | Solid State Chemistry | 10 | 257 | 1503 | 1314 |
| 291 | Marine Biology | 5 | 254 | 1791 | 1401 |
| 292 | Light | 9 | 253 | 484 | 711 |
| 293 | Neuropharmacology | 16 | 249 | 157 | 301 |
| 294 | Respiratory system | 7 | 247 | 314 | 308 |
| 294 | Alzheimer's disease | 6 | 247 | 879 | 545 |
| 296 | Materials Science | 18 | 246 | 1887 | 2381 |
| 297 | drug development | 5 | 245 | 582 | 697 |
| 298 | Medical Technology | 15 | 242 | 532 | 802 |
| 298 | Kidney diseases | 12 | 242 | 346 | 469 |
| 300 | Nuclear Physics | 21 | 241 | 1838 | 2134 |
| 301 | glycoproteins | 11 | 238 | 156 | 261 |
| 301 | Glycoconjugates | 11 | 238 | 156 | 261 |
| 301 | glycolipids | 11 | 238 | 156 | 261 |
| 304 | Radiology | 11 | 236 | 617 | 545 |
| 304 | Molecules | 15 | 236 | 683 | 721 |
| 304 | Chromosomes | 7 | 236 | 515 | 563 |
| 307 | Parasitology | 12 | 233 | 1128 | 1186 |
| 308 | Polymers | 11 | 231 | 2365 | 2339 |
| 309 | Pediatric Rheumatology | 14 | 226 | 53 | 68 |
| 310 | Behavior | 20 | 224 | 1141 | 2038 |
| 311 | cloning | 10 | 220 | 259 | 494 |
| 312 | Ultrasonics | 7 | 218 | 735 | 846 |
| 313 | Nanostructured Materials | 12 | 217 | 1575 | 1904 |
| 314 | Nonlinear Dynamics | 13 | 216 | 1007 | 1124 |
| 315 | monoclonal antibodies | 4 | 211 | 185 | 80 |
| 316 | Organometallic chemistry | 11 | 209 | 1145 | 1090 |
| 316 | ecosystem | 2 | 209 | 1407 | 948 |
| 318 | Zeolites | 1 | 208 | 1385 | 676 |
| 319 | Evolution | 9 | 203 | 968 | 1170 |
| 320 | Marine Ecology | 2 | 197 | 878 | 406 |
| 321 | risk factors | 7 | 195 | 371 | 398 |
| 322 | Environmental pollutants | 5 | 194 | 1663 | 1567 |
| 323 | Geriatric Psychiatry | 17 | 190 | 299 | 542 |
| 323 | Pharmacogenomics | 2 | 190 | 339 | 162 |
| 323 | Electrochemical Analysis | 3 | 190 | 1544 | 1004 |
| 326 | rehabilitation | 8 | 187 | 1201 | 1256 |
| 327 | mutation | 7 | 184 | 296 | 428 |
| 328 | Evolutionary Genetics | 8 | 183 | 251 | 353 |
| 328 | Molecular Epidemiology | 8 | 183 | 251 | 353 |
| 328 | Parasites | 9 | 183 | 867 | 909 |
| 331 | calcification | 7 | 182 | 288 | 363 |
| 332 | free radicals | 8 | 178 | 762 | 1107 |
| 333 | Astrophysics | 8 | 177 | 1915 | 1872 |
| 334 | Parasitic Diseases | 10 | 176 | 950 | 1193 |
| 334 | Vision | 4 | 176 | 554 | 467 |
| 336 | Developmental Immunology | 3 | 173 | 564 | 451 |
| 336 | human behavior | 13 | 173 | 1061 | 2019 |
| 336 | probabilities | 12 | 173 | 692 | 624 |
| 339 | Inflammation | 9 | 172 | 529 | 891 |
| 339 | Biometrics | 18 | 172 | 369 | 585 |
| 341 | Functional Analysis | 5 | 169 | 1109 | 775 |
| 341 | Clinical Biochemistry | 7 | 169 | 667 | 695 |
| 343 | Transgenic plants | 3 | 167 | 389 | 305 |
| 344 | DNA | 6 | 165 | 352 | 306 |
| 345 | Electron Microscopy | 14 | 164 | 112 | 192 |
| 346 | Infections | 8 | 163 | 569 | 847 |
| 346 | Carbohydrates | 10 | 163 | 155 | 315 |
| 348 | cell interaction | 4 | 162 | 803 | 826 |
| 349 | Maternal health services | 2 | 161 | 418 | 209 |
| 349 | Child welfare | 2 | 161 | 1267 | 610 |
| 351 | Emergency Medicine | 17 | 160 | 451 | 643 |
| 351 | Molecular ecology | 3 | 160 | 907 | 933 |
| 353 | Sonochemistry | 3 | 159 | 660 | 676 |
| 354 | Medical innovations | 3 | 156 | 799 | 953 |
| 355 | Agricultural Science | 1 | 155 | 384 | 227 |
| 355 | Neuropsychiatry | 5 | 155 | 569 | 551 |
| 355 | Agronomy | 1 | 155 | 730 | 414 |
| 355 | Mycology | 3 | 155 | 1399 | 1086 |
| 355 | Optical materials | 9 | 155 | 1545 | 1930 |
| 355 | Agriculture | 1 | 155 | 2857 | 1348 |
| 361 | Virulence | 4 | 154 | 794 | 978 |
| 362 | Environmental Engineering | 7 | 152 | 2382 | 2580 |
| 363 | Medical Imaging | 9 | 150 | 132 | 182 |
| 363 | Magnetic Resonance Imaging | 10 | 150 | 174 | 265 |
| 363 | Biomass Energy | 2 | 150 | 2556 | 2056 |
| 366 | Molecular Microbiology | 3 | 149 | 757 | 803 |
| 367 | Environmental Chemistry | 3 | 147 | 1979 | 1761 |
| 367 | pollutants | 3 | 147 | 1748 | 1563 |
| 367 | polymerization | 8 | 147 | 2297 | 2338 |
| 370 | Oligosaccharides | 7 | 145 | 98 | 157 |
| 370 | biological factors | 3 | 145 | 1807 | 1337 |
| 372 | Differential Equations | 4 | 144 | 938 | 622 |
| 373 | drug evaluation | 6 | 140 | 839 | 914 |
| 374 | Industrial Microbiology | 9 | 139 | 1038 | 1655 |
| 375 | Sleep Disorders | 7 | 138 | 854 | 940 |
| 375 | medical education | 9 | 138 | 871 | 1018 |
| 375 | Sleep | 7 | 138 | 875 | 955 |
| 378 | sanitation | 6 | 136 | 971 | 1448 |
| 378 | Biodegradation | 4 | 136 | 604 | 646 |
| 380 | Vaccination | 6 | 135 | 108 | 178 |
| 381 | prostaglandins | 10 | 134 | 194 | 307 |
| 382 | Health Services Research | 9 | 131 | 780 | 965 |
| 382 | epilepsy | 11 | 131 | 406 | 616 |
| 384 | Nephrology | 2 | 130 | 512 | 483 |
| 384 | Environmental monitoring | 7 | 130 | 2433 | 3072 |
| 384 | gene transfer | 5 | 130 | 151 | 179 |
| 384 | genetic transformation | 5 | 130 | 151 | 179 |
| 388 | economic policy | 15 | 129 | 1026 | 1303 |
| 389 | alcoholism | 4 | 128 | 1058 | 992 |
| 390 | management | 3 | 127 | 3190 | 2646 |
| 391 | Primary health care | 9 | 126 | 827 | 1075 |
| 391 | Nanostructures | 2 | 126 | 2171 | 1614 |
| 393 | Teratology | 3 | 122 | 241 | 220 |
| 394 | Palliative Care | 14 | 121 | 272 | 473 |
| 395 | Engineering Mathematics | 6 | 119 | 1348 | 1139 |
| 395 | Regional Planning | 7 | 119 | 956 | 1092 |
| 397 | Andrology | 7 | 118 | 334 | 414 |
| 397 | pain | 5 | 118 | 867 | 996 |
| 399 | Cross-Cultural Studies | 8 | 115 | 338 | 513 |
| 399 | Nanoparticles | 2 | 115 | 2039 | 1541 |
| 399 | Mental Health Services | 5 | 115 | 778 | 837 |
| 399 | cross-cultural comparison | 8 | 115 | 233 | 338 |
| 403 | Tropical Medicine | 10 | 114 | 866 | 1170 |
| 404 | Crystallization | 20 | 112 | 100 | 252 |
| 404 | cytokines | 4 | 112 | 946 | 1076 |
| 406 | Cheminformatics | 4 | 110 | 231 | 373 |
| 406 | tomography | 8 | 110 | 178 | 227 |
| 408 | Geology | 4 | 108 | 2178 | 1987 |
| 409 | Chemical analysis | 6 | 107 | 767 | 977 |
| 410 | Amyotrophic Lateral Sclerosis | 1 | 106 | 359 | 211 |
| 410 | Language and Culture | 1 | 106 | 348 | 52 |
| 410 | Carbon | 7 | 106 | 814 | 1418 |
| 410 | city planning | 6 | 106 | 1099 | 1245 |
| 410 | Culture | 1 | 106 | 1695 | 592 |
| 410 | Bones | 3 | 106 | 650 | 727 |
| 416 | hospice care | 7 | 105 | 274 | 345 |
| 416 | Radio | 5 | 105 | 1060 | 1159 |
| 418 | Radioisotopes | 10 | 104 | 516 | 651 |
| 419 | Bioinorganic chemistry | 3 | 102 | 1328 | 1201 |
| 420 | Nursing | 6 | 100 | 1344 | 1276 |
| 421 | Randomized Controlled Trials | 6 | 99 | 622 | 606 |
| 422 | Emergency Medical Services | 9 | 97 | 274 | 467 |
| 422 | Psychoneuroimmunology | 3 | 97 | 540 | 695 |
| 422 | Neuroimmunology | 3 | 97 | 597 | 746 |
| 422 | DNA repair | 6 | 97 | 164 | 272 |
| 426 | Dementia | 3 | 96 | 1160 | 769 |
| 427 | Immunopharmacology | 3 | 94 | 993 | 956 |
| 428 | Reproductive health | 4 | 93 | 583 | 638 |
| 428 | Oligosaccharide | 4 | 93 | 225 | 334 |
| 428 | drug addiction | 1 | 93 | 1386 | 934 |
| 431 | biofuels | 1 | 92 | 473 | 457 |
| 431 | Herpetology | 1 | 92 | 620 | 191 |
| 431 | Amphibians | 1 | 92 | 483 | 120 |
| 431 | Reptiles | 1 | 92 | 524 | 174 |
| 435 | Radiation Oncology | 4 | 91 | 262 | 302 |
| 436 | Probability | 6 | 89 | 365 | 507 |
| 437 | Medical Physics | 8 | 88 | 879 | 1302 |
| 437 | behavioral medicine | 4 | 88 | 1016 | 1398 |
| 437 | Drug design | 5 | 88 | 1104 | 1392 |
| 440 | Hematopoietic stem cell transplantation | 4 | 84 | 315 | 495 |
| 441 | Research Design | 4 | 83 | 917 | 1062 |
| 442 | natural products | 5 | 82 | 1392 | 1502 |
| 442 | transport vesicles | 1 | 82 | 394 | 455 |
| 444 | Sustainable Development | 3 | 80 | 2052 | 2110 |
| 444 | Ferroelectricity | 11 | 80 | 504 | 658 |
| 446 | Morphogenesis | 5 | 77 | 17 | 100 |
| 446 | Magnetic Materials | 7 | 77 | 1011 | 1383 |
| 448 | Clinical Trials | 3 | 76 | 425 | 368 |
| 448 | Surface-Active Agents | 2 | 76 | 1345 | 1378 |
| 448 | Surface properties | 2 | 76 | 1392 | 1434 |
| 448 | plant communities | 3 | 76 | 977 | 1192 |
| 452 | Microbial Biotechnology | 1 | 74 | 1651 | 1108 |
| 452 | Bioremediation | 3 | 74 | 851 | 1040 |
| 452 | Entomology | 3 | 74 | 2088 | 1658 |
| 455 | Health Policy | 7 | 73 | 1217 | 1707 |
| 455 | innovation | 1 | 73 | 1022 | 849 |
| 455 | research and development | 1 | 73 | 595 | 445 |
| 458 | Sociology | 4 | 71 | 2546 | 2505 |
| 458 | Extreme environments | 1 | 71 | 434 | 341 |
| 458 | eugenics | 3 | 71 | 497 | 512 |
| 458 | Pregnancy | 9 | 71 | 376 | 783 |
| 462 | Bioenergetics | 8 | 70 | 453 | 967 |
| 462 | Economic History | 12 | 70 | 1634 | 2433 |
| 462 | Energy metabolism | 8 | 70 | 348 | 665 |
| 462 | Organogenesis | 3 | 70 | 14 | 81 |
| 466 | older people | 6 | 68 | 1040 | 1117 |
| 467 | Pharmacognosy | 4 | 67 | 1538 | 2030 |
| 467 | Superconductors | 3 | 67 | 852 | 686 |
| 467 | heredity | 1 | 67 | 995 | 601 |
| 467 | Metals | 3 | 67 | 1893 | 1808 |
| 471 | Melanoma | 2 | 66 | 241 | 260 |
| 471 | Electrocardiography | 4 | 66 | 242 | 232 |
| 473 | Climatology | 2 | 64 | 1829 | 1750 |
| 473 | bioclimatology | 2 | 64 | 1140 | 1035 |
| 473 | Climate | 2 | 64 | 706 | 718 |
| 473 | weather | 2 | 64 | 695 | 679 |
| 473 | Cerebral cortex | 6 | 64 | 600 | 991 |
| 478 | Geochemistry | 2 | 62 | 1953 | 1853 |
| 478 | Water Microbiology | 1 | 62 | 855 | 570 |
| 478 | Decision making | 4 | 62 | 1224 | 1466 |
| 478 | Fouling | 1 | 62 | 448 | 346 |
| 482 | Medicinal plants | 2 | 61 | 1587 | 1707 |
| 482 | nanoscience | 4 | 61 | 2267 | 2745 |
| 484 | Geometry | 5 | 60 | 944 | 781 |
| 484 | Microscopy | 5 | 60 | 1062 | 1222 |
| 484 | vitamins | 2 | 60 | 161 | 228 |
| 487 | Synchrotron Radiation | 1 | 59 | 603 | 351 |
| 487 | Sound | 4 | 59 | 889 | 888 |
| 487 | Ultrasound | 4 | 59 | 597 | 805 |
| 487 | Radio frequency | 4 | 59 | 367 | 496 |
| 491 | Pediatric Hematology | 7 | 58 | 192 | 257 |
| 491 | preimplantation genetic diagnosis | 5 | 58 | 281 | 460 |
| 491 | embryo transfer | 5 | 58 | 295 | 472 |
| 494 | Microelectronics | 5 | 57 | 1277 | 1723 |
| 494 | Quality of life | 2 | 57 | 1614 | 1654 |
| 494 | anesthesia | 8 | 57 | 241 | 378 |
| 497 | Immunochemistry | 4 | 56 | 791 | 986 |
| 498 | Lipid metabolism | 4 | 55 | 313 | 615 |
| 498 | Alternative Medicine | 4 | 55 | 1245 | 1786 |
| 498 | Happiness | 1 | 55 | 868 | 665 |
| 498 | Lipid | 4 | 55 | 312 | 617 |
| 502 | Chemical Engineering | 4 | 54 | 3278 | 3837 |
| 502 | Water | 1 | 54 | 2964 | 2714 |
| 502 | Antioxidants | 4 | 54 | 607 | 1043 |
| 502 | Biomarkers | 4 | 54 | 305 | 441 |
| 502 | Marine Pollution | 2 | 54 | 1360 | 1531 |
| 502 | Probiotics | 1 | 54 | 425 | 278 |
| 502 | biochemical markers | 4 | 54 | 489 | 690 |
| 502 | vitamin C | 4 | 54 | 309 | 633 |
| 502 | vitamin E | 4 | 54 | 309 | 633 |
| 511 | Organ transplantation | 4 | 53 | 255 | 270 |
| 511 | Business | 3 | 53 | 2148 | 2475 |
| 511 | primary prevention | 2 | 53 | 457 | 510 |
| 514 | Interferons | 2 | 52 | 330 | 362 |
| 514 | Cytokine | 2 | 52 | 464 | 613 |
| 516 | Graph Theory | 6 | 51 | 502 | 552 |
| 517 | Cardiovascular Pharmacology | 2 | 50 | 315 | 348 |
| 518 | Social Sciences | 4 | 48 | 2958 | 3017 |
| 518 | Plant Morphology | 2 | 48 | 747 | 700 |
| 520 | drug resistance | 2 | 47 | 857 | 946 |
| 520 | embryonic development | 1 | 47 | 644 | 537 |
| 520 | blood transfusion | 2 | 47 | 597 | 552 |
| 520 | Hypertension in pregnancy | 5 | 47 | 103 | 168 |
| 520 | rare diseases | 2 | 47 | 637 | 678 |
| 520 | Developed countries | 1 | 47 | 454 | 351 |
| 520 | Developing countries | 1 | 47 | 3205 | 2392 |
| 527 | Physical organic chemistry | 4 | 46 | 1237 | 1534 |
| 527 | Radio waves | 1 | 46 | 1157 | 994 |
| 527 | Synapses | 1 | 46 | 418 | 380 |
| 527 | Chronic diseases | 1 | 46 | 811 | 764 |
| 531 | Photonics | 1 | 45 | 2241 | 1949 |
| 531 | Wireless Communication Systems | 1 | 45 | 2898 | 2244 |
| 531 | Mutagenesis | 3 | 45 | 408 | 538 |
| 531 | global environmental change | 1 | 45 | 1222 | 1200 |
| 531 | Chemical industry | 12 | 45 | 571 | 1355 |
| 531 | Endocrine system | 5 | 45 | 477 | 334 |
| 531 | sexual behavior | 2 | 45 | 816 | 872 |
| 538 | Number Theory | 9 | 44 | 430 | 595 |
| 538 | Cell migration | 1 | 44 | 197 | 206 |
| 538 | Cell adhesion | 1 | 44 | 311 | 295 |
| 538 | Plastics | 1 | 44 | 2293 | 1784 |
| 538 | cell movement | 1 | 44 | 417 | 420 |
| 538 | textile fibers | 1 | 44 | 795 | 467 |
| 538 | Information Science | 1 | 44 | 3467 | 2871 |
| 538 | sports injuries | 7 | 44 | 281 | 632 |
| 546 | Biosensors | 2 | 43 | 1386 | 1897 |
| 546 | Electronics | 7 | 43 | 2126 | 2828 |
| 546 | Social Psychology | 1 | 43 | 2962 | 2445 |
| 546 | Biodiversity conservation | 1 | 43 | 1950 | 1903 |
| 546 | personality | 1 | 43 | 2048 | 1848 |
| 546 | Bone diseases | 1 | 43 | 715 | 659 |
| 552 | Asthma | 5 | 42 | 441 | 706 |
| 552 | DNA methylation | 1 | 42 | 457 | 479 |
| 554 | Signal Processing | 2 | 41 | 2539 | 2599 |
| 554 | Urban Areas | 1 | 41 | 466 | 321 |
| 556 | Robotics | 1 | 40 | 2294 | 1861 |
| 556 | Genetic Toxicology | 1 | 40 | 739 | 757 |
| 556 | Geomagnetism | 1 | 40 | 772 | 698 |
| 556 | Leadership | 1 | 40 | 959 | 906 |
| 556 | Antibacterial agents | 2 | 40 | 717 | 981 |
| 556 | Yeast | 1 | 40 | 665 | 649 |
| 556 | Biodiversity | 3 | 40 | 2013 | 2333 |
| 563 | Data Mining | 2 | 39 | 1923 | 2022 |
| 563 | Community Psychiatry | 1 | 39 | 1322 | 1214 |
| 563 | Functional Genomics | 2 | 39 | 303 | 471 |
| 563 | Image Processing | 3 | 39 | 2032 | 2359 |
| 563 | Computer-Aided Design | 2 | 39 | 1432 | 1468 |
| 563 | Semiconductors | 5 | 39 | 1700 | 2194 |
| 563 | data collection | 2 | 39 | 1286 | 1412 |
| 563 | Cell death | 3 | 39 | 927 | 1432 |
| 563 | Psychiatric hospitals | 1 | 39 | 339 | 298 |
| 572 | Population Genetics | 1 | 38 | 1534 | 1531 |
| 572 | Superconductivity | 1 | 38 | 686 | 498 |
| 572 | biocatalysis | 1 | 38 | 300 | 484 |
| 572 | Homogeneous catalysis | 1 | 38 | 300 | 484 |
| 572 | Heterogeneous catalysis | 1 | 38 | 300 | 484 |
| 577 | Lymphatic system | 4 | 37 | 54 | 135 |
| 577 | toxicity testing | 1 | 37 | 1012 | 980 |
| 577 | Chromatographic analysis | 3 | 37 | 1697 | 1929 |
| 580 | Psychiatric Nursing | 1 | 36 | 1045 | 836 |
| 580 | Contraception | 2 | 36 | 663 | 767 |
| 580 | Neurotransmitters | 6 | 36 | 324 | 578 |
| 580 | Metabolic syndrome | 2 | 36 | 346 | 457 |
| 580 | Birth control | 2 | 36 | 533 | 683 |
| 585 | Fertilization | 1 | 35 | 126 | 125 |
| 585 | Mobile genetic elements | 1 | 35 | 209 | 205 |
| 585 | monitoring | 4 | 35 | 207 | 336 |
| 585 | ethanol | 3 | 35 | 481 | 679 |
| 585 | gametes | 1 | 35 | 126 | 125 |
| 585 | bees | 2 | 35 | 478 | 499 |
| 591 | Combinatorial chemistry | 2 | 34 | 808 | 1136 |
| 591 | Immunotoxicology | 1 | 34 | 579 | 452 |
| 591 | Microbial Metabolism | 3 | 34 | 154 | 516 |
| 591 | Parkinson's disease | 1 | 34 | 406 | 420 |
| 595 | Humanities | 2 | 32 | 2382 | 1951 |
| 595 | Microfluidics | 2 | 32 | 277 | 401 |
| 595 | Amyloidosis | 2 | 32 | 158 | 225 |
| 595 | environmental exposure | 2 | 32 | 2067 | 2592 |
| 595 | DNA polymerases | 1 | 32 | 550 | 784 |
| 600 | Biopharmaceutics | 4 | 31 | 860 | 1507 |
| 600 | Ethology | 2 | 31 | 1484 | 1961 |
| 600 | cell proliferation | 3 | 31 | 305 | 541 |
| 603 | Dynamics | 4 | 30 | 1457 | 1775 |
| 603 | Lymphoma | 3 | 30 | 317 | 359 |
| 603 | Multiple Myeloma | 3 | 30 | 313 | 350 |
| 603 | System analysis | 2 | 30 | 2587 | 2809 |
| 603 | Adolescent | 3 | 30 | 1853 | 2292 |
| 603 | body temperature | 1 | 30 | 990 | 894 |
| 603 | Quantum theory | 4 | 30 | 883 | 1148 |
| 603 | Cognition | 4 | 30 | 1377 | 1997 |
| 611 | Diagnosis | 6 | 29 | 208 | 583 |
| 611 | Patient Safety | 6 | 29 | 36 | 112 |
| 611 | Heart Failure | 3 | 29 | 327 | 577 |
| 611 | peptides | 4 | 29 | 651 | 1122 |
| 611 | Cerebellum | 3 | 29 | 254 | 484 |
| 611 | Cerebellar ataxia | 3 | 29 | 254 | 484 |
| 617 | Metallurgy | 2 | 28 | 2256 | 2286 |
| 617 | Nonlinear Optics | 2 | 28 | 179 | 197 |
| 617 | Herbal medicine | 1 | 28 | 1241 | 1456 |
| 617 | Food additives | 2 | 28 | 1265 | 1755 |
| 617 | Quantum Optics | 2 | 28 | 1028 | 1075 |
| 617 | Chromatography | 2 | 28 | 1710 | 1965 |
| 617 | animals | 4 | 28 | 1057 | 1446 |
| 617 | Physical fitness | 1 | 28 | 1493 | 1424 |
| 617 | cell membrane | 7 | 28 | 348 | 816 |
| 617 | Plant diseases | 1 | 28 | 2359 | 2136 |
| 617 | lasers | 3 | 28 | 2013 | 2333 |
| 617 | Allergies | 2 | 28 | 164 | 248 |
| 629 | Otolaryngology | 4 | 27 | 404 | 660 |
| 629 | Pharmaceutical Technology | 4 | 27 | 1268 | 2009 |
| 629 | Combinatorial optimization | 3 | 27 | 534 | 607 |
| 629 | Neural circuitry | 1 | 27 | 2716 | 2707 |
| 633 | Applied Linguistics | 1 | 26 | 1031 | 794 |
| 633 | cosmic rays | 1 | 26 | 682 | 570 |
| 633 | Technological Innovations | 1 | 26 | 1753 | 1659 |
| 633 | Animal welfare | 2 | 26 | 337 | 516 |
| 637 | Algebra | 3 | 25 | 1464 | 1353 |
| 637 | Gerontology | 6 | 25 | 1230 | 2067 |
| 637 | Organometallic compounds | 1 | 25 | 1797 | 1752 |
| 637 | Luminescence | 2 | 25 | 1620 | 1813 |
| 637 | abnormalities | 2 | 25 | 186 | 307 |
| 637 | Familial diseases | 1 | 25 | 290 | 284 |
| 643 | Hemostasis | 3 | 24 | 633 | 902 |
| 643 | Protein engineering | 1 | 24 | 366 | 424 |
| 643 | molecular design | 1 | 24 | 409 | 425 |
| 646 | Computer Graphics | 2 | 23 | 1892 | 2179 |
| 646 | Genetic translocation | 1 | 23 | 363 | 390 |
| 646 | Microcirculation | 4 | 23 | 378 | 783 |
| 646 | plasmids | 1 | 23 | 363 | 390 |
| 646 | Combinatorial analysis | 7 | 23 | 668 | 1020 |
| 646 | Soviet Union | 1 | 23 | 1260 | 761 |
| 652 | Regional Economics | 2 | 22 | 586 | 773 |
| 652 | Crisis Intervention | 1 | 22 | 297 | 326 |
| 652 | Bipolar Disorder | 1 | 22 | 477 | 572 |
| 652 | Political Participation | 1 | 22 | 577 | 548 |
| 652 | election law | 1 | 22 | 435 | 406 |
| 652 | Mitochondria | 1 | 22 | 501 | 606 |
| 652 | Elections | 1 | 22 | 549 | 492 |
| 652 | Suicide | 1 | 22 | 903 | 928 |
| 652 | Voting | 1 | 22 | 409 | 394 |
| 652 | Thorax | 2 | 22 | 395 | 633 |
| 652 | Meteorites | 1 | 22 | 1070 | 1269 |
| 663 | Dentistry | 22 | 21 | 176 | 857 |
| 663 | Oceanography | 1 | 21 | 2004 | 2082 |
| 663 | Nanomedicine | 1 | 21 | 491 | 656 |
| 663 | Enzyme inhibitors | 1 | 21 | 761 | 887 |
| 663 | pain management | 3 | 21 | 536 | 870 |
| 663 | extraterrestrial environment | 1 | 21 | 933 | 892 |
| 663 | astronomical phenomena | 1 | 21 | 863 | 833 |
| 670 | Nanochemistry | 1 | 20 | 1874 | 1976 |
| 670 | Telemedicine | 2 | 20 | 401 | 731 |
| 670 | Quantum Gravity | 1 | 20 | 2253 | 2153 |
| 670 | Waste management | 2 | 20 | 1646 | 2053 |
| 670 | Brain damage | 1 | 20 | 630 | 708 |
| 675 | Nuclear Engineering | 5 | 19 | 1094 | 1696 |
| 675 | Clinical Laboratory Science | 3 | 19 | 190 | 383 |
| 675 | Biogeochemistry | 1 | 19 | 1446 | 1729 |
| 675 | Telecommunication | 3 | 19 | 2387 | 3074 |
| 675 | Bioelectronics | 1 | 19 | 1546 | 1985 |
| 680 | Information Systems | 1 | 18 | 2140 | 2226 |
| 680 | Music | 1 | 18 | 1406 | 1145 |
| 680 | voice | 1 | 18 | 800 | 772 |
| 680 | Influenza | 2 | 18 | 235 | 444 |
| 684 | Pediatric Dermatology | 1 | 17 | 566 | 573 |
| 684 | Public Policy | 3 | 17 | 1602 | 2683 |
| 684 | medical errors | 1 | 17 | 117 | 156 |
| 684 | Wildlife conservation | 1 | 17 | 1460 | 1708 |
| 684 | Social welfare | 1 | 17 | 958 | 926 |
| 684 | clay | 1 | 17 | 1271 | 1590 |
| 684 | Solutions | 2 | 17 | 519 | 662 |
| 684 | safety | 1 | 17 | 148 | 201 |
| 684 | Social work | 1 | 17 | 1993 | 1850 |
| 684 | Pituitary gland | 1 | 17 | 299 | 378 |
| 684 | Longevity | 2 | 17 | 221 | 464 |
| 695 | Telecommunications | 2 | 16 | 1019 | 1334 |
| 695 | Forest Ecology | 1 | 16 | 1409 | 1712 |
| 695 | Oral Pathology | 1 | 16 | 183 | 258 |
| 695 | Discrete Mathematics | 2 | 16 | 496 | 415 |
| 695 | air quality management | 1 | 16 | 947 | 1220 |
| 695 | Integrated Circuits | 3 | 16 | 808 | 971 |
| 695 | Molecular recognition | 1 | 16 | 450 | 541 |
| 695 | Forest Management | 1 | 16 | 1347 | 1596 |
| 695 | graph | 2 | 16 | 496 | 415 |
| 695 | indoor air pollution | 1 | 16 | 675 | 858 |
| 695 | Ventilation | 1 | 16 | 895 | 997 |
| 695 | Sick building syndrome | 1 | 16 | 675 | 858 |
| 695 | rejuvenation | 1 | 16 | 262 | 415 |
| 708 | Developmental Psychology | 2 | 15 | 1170 | 1623 |
| 708 | Palynology | 1 | 15 | 425 | 442 |
| 708 | Medical Ethics | 2 | 15 | 1271 | 1602 |
| 708 | Speech Disorders | 2 | 15 | 1039 | 1388 |
| 712 | Education | 5 | 14 | 2702 | 4245 |
| 712 | Petroleum Engineering | 1 | 14 | 1042 | 1198 |
| 712 | Nuclear Energy | 4 | 14 | 794 | 1367 |
| 712 | Health Education | 2 | 14 | 1899 | 2478 |
| 712 | cardiac catheterization | 3 | 14 | 538 | 743 |
| 712 | synthesis | 1 | 14 | 1643 | 1628 |
| 712 | alcohol | 1 | 14 | 163 | 169 |
| 719 | Cybernetics | 1 | 13 | 2192 | 2405 |
| 719 | Artificial Intelligence | 1 | 13 | 4263 | 4409 |
| 719 | Horticulture | 2 | 13 | 890 | 1347 |
| 719 | Land Use Planning | 1 | 13 | 633 | 822 |
| 719 | Water Purification | 1 | 13 | 1714 | 1936 |
| 719 | Water quality management | 1 | 13 | 2490 | 2742 |
| 719 | health planning | 1 | 13 | 3002 | 3179 |
| 719 | pharmaceutical industry | 2 | 13 | 697 | 1158 |
| 727 | Radiopharmaceuticals | 2 | 12 | 352 | 425 |
| 727 | visualization | 6 | 12 | 930 | 1563 |
| 727 | Earth Sciences | 2 | 12 | 3234 | 3966 |
| 727 | violence | 1 | 12 | 1462 | 1731 |
| 727 | sex crimes | 1 | 12 | 1009 | 1246 |
| 732 | Hematopoiesis | 1 | 11 | 116 | 145 |
| 732 | Budget | 2 | 11 | 205 | 339 |
| 732 | mathematical analysis | 1 | 11 | 3028 | 2827 |
| 732 | miniaturization | 3 | 11 | 1634 | 2786 |
| 736 | Mechanical Engineering | 1 | 10 | 3033 | 3053 |
| 736 | Political Science | 2 | 10 | 1869 | 2099 |
| 736 | Fluid Mechanics | 1 | 10 | 2055 | 2232 |
| 736 | Thermodynamics | 1 | 10 | 1863 | 1867 |
| 736 | Neuroimaging | 2 | 10 | 331 | 562 |
| 736 | Neuroanatomy | 2 | 10 | 308 | 675 |
| 736 | Behavioral research | 1 | 10 | 1150 | 1353 |
| 736 | Hydraulic machinery | 1 | 10 | 106 | 115 |
| 736 | Phylogenetics | 1 | 10 | 217 | 302 |
| 736 | disease outbreaks | 1 | 10 | 700 | 989 |
| 736 | Epidemics | 1 | 10 | 672 | 965 |
| 736 | drug toxicity | 1 | 10 | 921 | 1339 |
| 748 | Educational Psychology | 4 | 9 | 1177 | 2358 |
| 748 | Pediatric Nursing | 1 | 9 | 645 | 874 |
| 748 | Thin Films | 1 | 9 | 892 | 1063 |
| 748 | Digital humanities | 1 | 9 | 228 | 306 |
| 748 | nucleotides | 2 | 9 | 402 | 587 |
| 748 | Blood vessels | 2 | 9 | 462 | 838 |
| 748 | Animal | 3 | 9 | 152 | 530 |
| 748 | Multiple sclerosis | 1 | 9 | 862 | 988 |
| 748 | Fisheries | 2 | 9 | 1651 | 2315 |
| 757 | Audiology | 1 | 8 | 997 | 1173 |
| 757 | Agricultural Ecology | 1 | 8 | 1495 | 2065 |
| 757 | Nonparametric Statistics | 2 | 8 | 241 | 395 |
| 757 | Sustainable agriculture | 1 | 8 | 1248 | 1677 |
| 757 | food technology | 2 | 8 | 2643 | 3772 |
| 757 | Fermentation | 2 | 8 | 278 | 563 |
| 757 | stem cell transplantation | 1 | 8 | 104 | 132 |
| 757 | Antiviral agents | 1 | 8 | 410 | 587 |
| 757 | complementary therapies | 2 | 8 | 1984 | 3151 |
| 757 | Holistic Health | 1 | 8 | 886 | 1122 |
| 757 | Health insurance | 2 | 8 | 481 | 927 |
| 757 | Developmental Disabilities | 1 | 8 | 1346 | 1780 |
| 757 | Cell cycle | 1 | 8 | 500 | 743 |
| 757 | food consumption | 1 | 8 | 143 | 276 |
| 757 | Communication | 2 | 8 | 2353 | 3233 |
| 757 | Antibodies | 2 | 8 | 597 | 999 |
| 757 | optical devices | 1 | 8 | 817 | 1050 |
| 757 | allied health | 1 | 8 | 504 | 702 |
| 757 | Bacterial diseases | 1 | 8 | 514 | 798 |
| 757 | venom | 2 | 8 | 889 | 1579 |
| 757 | Toxins | 2 | 8 | 1007 | 1732 |
| 778 | Engineering | 1 | 7 | 4942 | 5407 |
| 778 | Chronobiology | 1 | 7 | 884 | 1129 |
| 778 | Environmental Management | 1 | 7 | 3621 | 4541 |
| 778 | biological clocks | 1 | 7 | 884 | 1129 |
| 778 | Land use | 1 | 7 | 1740 | 2309 |
| 778 | moral development | 1 | 7 | 251 | 478 |
| 778 | Laser therapy | 1 | 7 | 740 | 938 |
| 778 | Moral Education | 1 | 7 | 282 | 445 |
| 778 | Drug delivery systems | 1 | 7 | 2088 | 2617 |
| 778 | International Finance | 1 | 7 | 2245 | 2690 |
| 778 | international trade | 1 | 7 | 1283 | 1534 |
| 778 | Migration | 1 | 7 | 403 | 560 |
| 778 | water supply | 1 | 7 | 1257 | 1722 |
| 778 | circadian rhythm | 1 | 7 | 884 | 1129 |
| 778 | insurance | 2 | 7 | 467 | 801 |
| 778 | China | 3 | 7 | 2580 | 4221 |
| 778 | biological rhythms | 1 | 7 | 848 | 1096 |
| 778 | mental processes | 1 | 7 | 594 | 728 |
| 778 | cycles | 1 | 7 | 333 | 421 |
| 797 | Language Disorders | 1 | 6 | 1170 | 1452 |
| 797 | Discourse Analysis | 1 | 6 | 691 | 929 |
| 797 | Nutrition physiology | 1 | 6 | 1111 | 1542 |
| 797 | speech therapy | 1 | 6 | 604 | 750 |
| 797 | Communication Disorders | 1 | 6 | 539 | 653 |
| 797 | fishing industry | 1 | 6 | 238 | 411 |
| 797 | freshwater biology | 1 | 6 | 1397 | 1800 |
| 804 | Computer Science | 2 | 5 | 2411 | 3459 |
| 804 | Kinetics | 1 | 5 | 902 | 1275 |
| 804 | ethnicity | 1 | 5 | 1181 | 1364 |
| 804 | Nationalism | 1 | 5 | 621 | 769 |
| 804 | Chemical kinetics | 1 | 5 | 1277 | 1546 |
| 804 | Retinal diseases | 1 | 5 | 129 | 111 |
| 804 | technical education | 1 | 5 | 1147 | 1572 |
| 804 | software | 1 | 5 | 1585 | 2181 |
| 804 | mammals | 1 | 5 | 1388 | 1787 |
| 804 | NMR | 2 | 5 | 669 | 1099 |
| 804 | magnetic resonance | 1 | 5 | 859 | 1110 |
| 804 | Aquaculture | 1 | 5 | 1888 | 2414 |
| 816 | Community Health Nursing | 1 | 4 | 156 | 305 |
| 816 | Public Administration | 2 | 4 | 1554 | 2431 |
| 816 | industrial hygiene | 1 | 4 | 1618 | 2028 |
| 816 | Biological Systems | 1 | 4 | 953 | 1413 |
| 816 | Bioethics | 1 | 4 | 1400 | 1784 |
| 816 | Sexual health | 2 | 4 | 775 | 1246 |
| 816 | Research methodology | 1 | 4 | 204 | 399 |
| 816 | Molecular Spectroscopy | 1 | 4 | 2375 | 3008 |
| 816 | sleep-wake cycle | 2 | 4 | 161 | 449 |
| 816 | Pacific Islands | 1 | 4 | 592 | 889 |
| 816 | Androgens | 1 | 4 | 358 | 576 |
| 816 | amino acids | 1 | 4 | 965 | 1465 |
| 816 | Australia | 2 | 4 | 2055 | 3371 |
| 829 | Hydrology | 1 | 3 | 3026 | 3814 |
| 829 | Green Chemistry | 1 | 3 | 2142 | 2891 |
| 829 | Sustainable Engineering | 1 | 3 | 2219 | 3002 |
| 829 | Neonatology | 1 | 3 | 942 | 1458 |
| 829 | Human-Computer Interaction | 1 | 3 | 2316 | 3177 |
| 829 | Forensic Pathology | 1 | 3 | 297 | 439 |
| 829 | Cognitive Science | 1 | 3 | 2263 | 3100 |
| 829 | Genetic disorders | 1 | 3 | 569 | 831 |
| 829 | Public Choice | 1 | 3 | 614 | 865 |
| 829 | Cardiopulmonary Resuscitation | 2 | 3 | 206 | 418 |
| 829 | Group decision making | 1 | 3 | 820 | 1179 |
| 829 | optical instruments | 1 | 3 | 511 | 704 |
| 829 | cardiac arrest | 2 | 3 | 206 | 418 |
| 829 | optical phenomena | 1 | 3 | 228 | 390 |
| 829 | scientific societies | 1 | 3 | 1130 | 1724 |
| 829 | India | 1 | 3 | 2464 | 2931 |
| 845 | Linguistics | 1 | 2 | 1900 | 2289 |
| 845 | Biostatistics | 1 | 2 | 35 | 68 |
| 845 | Environmental Policy | 1 | 2 | 4034 | 5195 |
| 845 | Human Geography | 1 | 2 | 1655 | 2307 |
| 845 | Sociolinguistics | 1 | 2 | 776 | 1097 |
| 845 | Oral Medicine | 1 | 2 | 1137 | 1614 |
| 845 | Pharmacokinetics | 2 | 2 | 968 | 1824 |
| 845 | Pragmatics | 1 | 2 | 148 | 236 |
| 845 | epidemiologic methods | 1 | 2 | 338 | 572 |
| 845 | Liquid Crystals | 1 | 2 | 1296 | 1614 |
| 845 | sociological factors | 1 | 2 | 71 | 109 |
| 845 | Africa | 1 | 2 | 2339 | 2987 |
| 845 | Middle East | 2 | 2 | 1263 | 2090 |
| 845 | biomedicine | 2 | 2 | 615 | 1418 |
| 845 | Intellectual disability | 1 | 2 | 1153 | 1701 |
| 845 | finance | 1 | 2 | 3137 | 3803 |
| 845 | phototherapy | 4 | 2 | 65 | 359 |
| 862 | Law | 2 | 1 | 1424 | 2196 |
| 862 | Information Technology | 2 | 1 | 2887 | 4571 |
| 862 | Genetic Counseling | 1 | 1 | 329 | 579 |
| 862 | Radiologic Technology | 1 | 1 | 280 | 480 |
| 862 | Global Health | 1 | 1 | 1665 | 2524 |
| 862 | Lung Transplantation | 1 | 1 | 478 | 677 |
| 862 | Interventional Radiology | 1 | 1 | 280 | 480 |
| 862 | Educational Sociology | 1 | 1 | 706 | 1165 |
| 862 | Industrial Safety | 1 | 1 | 1832 | 2622 |
| 862 | Agricultural Biotechnology | 1 | 1 | 577 | 861 |
| 862 | Patient education | 1 | 1 | 857 | 1390 |
| 862 | Immunohistochemistry | 1 | 1 | 329 | 581 |
| 862 | Heart transplantation | 1 | 1 | 478 | 677 |
| 862 | Interventional Radiography | 1 | 1 | 280 | 480 |
| 862 | Endoscopic Surgery | 1 | 1 | 280 | 480 |
| 862 | isomerism | 1 | 1 | 627 | 1065 |
| 862 | men | 1 | 1 | 594 | 1058 |
| 862 | counseling | 1 | 1 | 1854 | 2620 |
| 862 | disabilities | 1 | 1 | 1072 | 1672 |
| 862 | Matroids | 2 | 1 | 303 | 634 |
| 862 | Invertebrates | 1 | 1 | 975 | 1524 |
| 862 | Safety management | 1 | 1 | 1153 | 1857 |
| 862 | biological agents | 1 | 1 | 1202 | 1695 |
| 862 | Forest genetics | 1 | 1 | 477 | 801 |
| 862 | Chirality | 1 | 1 | 627 | 1065 |
| 887 | Urban Planning | 1 | 0 | 695 | 1157 |
| 887 | Game Theory | 1 | 0 | 898 | 1344 |
| 887 | Fiction | 1 | 0 | 309 | 508 |
| 887 | Intercultural Communication | 1 | 0 | 835 | 1438 |
| 887 | Econometrics | 2 | 0 | 1565 | 2605 |
| 887 | Cartography | 1 | 0 | 827 | 1275 |
| 887 | Adolescent Medicine | 1 | 0 | 828 | 1320 |
| 887 | emergency management | 1 | 0 | 1139 | 1913 |
| 887 | housing policy | 1 | 0 | 248 | 483 |
| 887 | community development | 1 | 0 | 1018 | 1670 |
| 887 | Measurement | 1 | 0 | 2028 | 2882 |
| 887 | Housing | 2 | 0 | 611 | 1379 |
| 887 | Elderly | 2 | 0 | 1325 | 2071 |
| 887 | Electrons | 1 | 0 | 171 | 356 |
| 887 | Southeast Asia | 2 | 0 | 486 | 1258 |
| 887 | Germany | 1 | 0 | 1136 | 1726 |
| 887 | Cerebrospinal fluid | 1 | 0 | 230 | 453 |
| 887 | Population | 1 | 0 | 1379 | 2129 |
| 887 | natural disasters | 1 | 0 | 1903 | 2786 |