| 1 | Nuclear Physics | 1,085 | 40.1K | 189 | 214 |
| 2 | Physics | 708 | 26.7K | 540 | 713 |
| 3 | Biochemistry | 604 | 19.5K | 594 | 641 |
| 4 | Pharmacology | 348 | 15.9K | 364 | 255 |
| 5 | Chemistry | 597 | 13.6K | 635 | 962 |
| 6 | Biotechnology | 244 | 12.7K | 419 | 398 |
| 7 | Microbiology | 310 | 10.4K | 467 | 607 |
| 8 | Molecular Biology | 348 | 7.5K | 636 | 949 |
| 9 | Toxicology | 200 | 6.8K | 332 | 373 |
| 10 | Medicine | 170 | 6.5K | 1184 | 1078 |
| 11 | environmental pollution | 103 | 6.2K | 547 | 406 |
| 12 | Botany | 154 | 6.2K | 468 | 489 |
| 13 | Colloids | 131 | 6.1K | 475 | 396 |
| 14 | Science | 262 | 6.0K | 850 | 1425 |
| 15 | Biology | 222 | 6.0K | 874 | 1380 |
| 16 | Research | 187 | 5.9K | 941 | 908 |
| 17 | Biomedical Engineering | 132 | 5.7K | 581 | 446 |
| 18 | Surface Chemistry | 126 | 5.7K | 495 | 379 |
| 19 | Pollution | 124 | 5.6K | 679 | 740 |
| 20 | Pharmaceutical Chemistry | 122 | 5.2K | 404 | 347 |
| 21 | Nanotechnology | 138 | 5.0K | 686 | 753 |
| 22 | Bioengineering | 81 | 5.0K | 649 | 547 |
| 23 | Ecology | 95 | 4.6K | 1025 | 1014 |
| 24 | Analytical Chemistry | 189 | 4.6K | 421 | 553 |
| 25 | Industrial Microbiology | 71 | 4.4K | 134 | 109 |
| 26 | Environmental monitoring | 95 | 4.3K | 401 | 404 |
| 27 | Environmental Health | 90 | 4.3K | 787 | 699 |
| 28 | drug evaluation | 95 | 4.2K | 22 | 7 |
| 29 | Drug design | 89 | 3.8K | 40 | 37 |
| 30 | Chemical Engineering | 106 | 3.8K | 785 | 812 |
| 31 | Nutrition | 80 | 3.6K | 634 | 539 |
| 32 | Food | 66 | 3.5K | 445 | 308 |
| 33 | Biochemical Engineering | 75 | 3.5K | 541 | 667 |
| 34 | Biopharmaceutics | 71 | 3.4K | 37 | 36 |
| 35 | Environment | 55 | 3.4K | 1029 | 1019 |
| 36 | Cell Biology | 147 | 3.3K | 445 | 812 |
| 37 | Pharmaceutical Technology | 56 | 3.3K | 146 | 71 |
| 38 | Cytology | 148 | 3.3K | 498 | 819 |
| 39 | Biophysics | 59 | 3.2K | 1273 | 941 |
| 40 | Plant physiology | 95 | 3.1K | 229 | 341 |
| 41 | Neurochemistry | 74 | 3.1K | 380 | 365 |
| 42 | Drug delivery systems | 94 | 3.0K | 51 | 140 |
| 43 | Materials | 136 | 3.0K | 994 | 1162 |
| 44 | environmental protection | 48 | 2.9K | 660 | 423 |
| 45 | Neurology | 79 | 2.9K | 915 | 954 |
| 46 | Surface-Active Agents | 41 | 2.9K | 87 | 37 |
| 46 | Surface properties | 41 | 2.9K | 94 | 40 |
| 48 | Immunology | 92 | 2.8K | 484 | 613 |
| 49 | Medical Laboratory Science | 21 | 2.7K | 649 | 278 |
| 50 | Plant Ecology | 29 | 2.7K | 487 | 277 |
| 51 | Brain | 46 | 2.6K | 665 | 494 |
| 52 | Geology | 149 | 2.6K | 355 | 516 |
| 53 | Biocompatible Materials | 68 | 2.6K | 767 | 881 |
| 54 | Quantum Gravity | 169 | 2.6K | 350 | 528 |
| 55 | Physiology | 53 | 2.6K | 912 | 733 |
| 56 | Technology | 78 | 2.4K | 576 | 521 |
| 57 | Radiation effects | 24 | 2.4K | 58 | 17 |
| 58 | Artificial Intelligence | 44 | 2.4K | 929 | 596 |
| 59 | drugs | 57 | 2.3K | 278 | 204 |
| 60 | Biosensors | 22 | 2.3K | 342 | 184 |
| 61 | Bioelectronics | 21 | 2.2K | 292 | 167 |
| 62 | Spectrum analysis | 127 | 2.2K | 596 | 912 |
| 63 | Environmental pollutants | 47 | 2.1K | 322 | 256 |
| 64 | Catalysis | 60 | 2.0K | 942 | 994 |
| 65 | Environmental Toxicology | 36 | 2.0K | 480 | 354 |
| 66 | Mathematics | 210 | 2.0K | 784 | 927 |
| 67 | actuators | 64 | 2.0K | 281 | 348 |
| 67 | transducers | 64 | 2.0K | 281 | 348 |
| 69 | Medicinal plants | 42 | 1.9K | 183 | 177 |
| 70 | Pharmacognosy | 47 | 1.9K | 283 | 266 |
| 71 | Inflammation | 56 | 1.9K | 53 | 117 |
| 72 | pharmaceutical industry | 32 | 1.8K | 37 | 10 |
| 73 | Environmental Policy | 25 | 1.8K | 986 | 720 |
| 73 | nanoscience | 46 | 1.8K | 661 | 747 |
| 75 | Manufacturing Processes | 29 | 1.7K | 672 | 348 |
| 76 | Materials Science | 60 | 1.7K | 1020 | 1123 |
| 77 | Environmental Chemistry | 17 | 1.7K | 696 | 471 |
| 78 | Statistical physics | 79 | 1.7K | 719 | 791 |
| 79 | Cognitive Science | 16 | 1.6K | 554 | 288 |
| 80 | Anti-inflammatory agents | 48 | 1.6K | 4 | 4 |
| 81 | Multimedia Systems | 64 | 1.6K | 142 | 144 |
| 82 | Organic Chemistry | 83 | 1.6K | 531 | 711 |
| 83 | Microbial Biotechnology | 57 | 1.6K | 25 | 48 |
| 84 | Medical Microbiology | 43 | 1.6K | 448 | 536 |
| 85 | Pharmacy | 42 | 1.6K | 405 | 327 |
| 86 | Environmental Management | 28 | 1.5K | 857 | 711 |
| 87 | Solid State Physics | 139 | 1.5K | 629 | 910 |
| 88 | Astrophysics | 99 | 1.5K | 655 | 996 |
| 89 | Genetics | 48 | 1.5K | 751 | 956 |
| 90 | Environmental Engineering | 37 | 1.5K | 905 | 869 |
| 91 | Psychophysiology | 28 | 1.4K | 904 | 748 |
| 92 | Public Health | 38 | 1.4K | 1266 | 1091 |
| 93 | Polymers | 63 | 1.4K | 1066 | 1106 |
| 94 | Psychopharmacology | 28 | 1.4K | 393 | 369 |
| 95 | Bioorganic chemistry | 55 | 1.4K | 530 | 658 |
| 96 | Organometallic chemistry | 99 | 1.3K | 87 | 183 |
| 97 | Biomass Energy | 39 | 1.3K | 497 | 692 |
| 98 | Paleontology | 48 | 1.3K | 240 | 211 |
| 99 | natural products | 29 | 1.3K | 408 | 242 |
| 100 | food technology | 28 | 1.3K | 728 | 554 |
| 101 | environmental exposure | 14 | 1.3K | 759 | 306 |
| 102 | Plants | 36 | 1.2K | 450 | 582 |
| 103 | pollutants | 13 | 1.2K | 766 | 370 |
| 104 | Nanostructured Materials | 40 | 1.2K | 890 | 936 |
| 105 | Clinical Pharmacology | 15 | 1.2K | 490 | 192 |
| 106 | Electrochemistry | 55 | 1.2K | 1045 | 1007 |
| 107 | Phytotherapy | 33 | 1.2K | 34 | 35 |
| 108 | Neurophysiology | 24 | 1.1K | 956 | 861 |
| 109 | gene mapping | 21 | 1.1K | 585 | 493 |
| 110 | Parasitology | 65 | 1.1K | 293 | 416 |
| 111 | Condensed Matter | 107 | 1.1K | 655 | 954 |
| 112 | Molecular Spectroscopy | 54 | 1.1K | 204 | 247 |
| 113 | Chromosome mapping | 19 | 1.1K | 569 | 432 |
| 114 | Mathematical Physics | 24 | 1.1K | 1115 | 650 |
| 115 | Earth Sciences | 68 | 1.1K | 542 | 813 |
| 116 | Cancer | 42 | 1.1K | 749 | 930 |
| 117 | Clinical Chemistry | 30 | 1.1K | 728 | 715 |
| 118 | Neuropsychology | 19 | 1.1K | 839 | 603 |
| 119 | Plant hormones | 19 | 1.1K | 38 | 25 |
| 120 | Oncology | 53 | 1.1K | 329 | 897 |
| 121 | biological factors | 19 | 1.0K | 632 | 388 |
| 122 | Functional foods | 20 | 1.0K | 39 | 20 |
| 123 | computer networks | 24 | 1.0K | 795 | 572 |
| 124 | Chromatographic analysis | 41 | 1.0K | 308 | 263 |
| 125 | Nuclear Chemistry | 83 | 1.0K | 48 | 92 |
| 126 | Solid State Chemistry | 46 | 1.0K | 590 | 568 |
| 127 | Natural history | 51 | 1.0K | 613 | 1787 |
| 128 | Nanostructures | 32 | 1.0K | 414 | 545 |
| 129 | Surgery | 10 | 992 | 720 | 542 |
| 130 | Green Chemistry | 27 | 988 | 503 | 611 |
| 131 | Agricultural Ecology | 16 | 979 | 318 | 287 |
| 132 | Agriculture | 22 | 950 | 608 | 463 |
| 133 | Psychiatry | 33 | 946 | 1137 | 1167 |
| 134 | Wireless Communication Systems | 56 | 938 | 431 | 590 |
| 135 | Carbon | 23 | 921 | 347 | 484 |
| 136 | polymerization | 42 | 920 | 1117 | 1158 |
| 137 | Asia | 65 | 915 | 237 | 358 |
| 138 | Engineering Mathematics | 21 | 882 | 585 | 312 |
| 139 | Analytical Biochemistry | 19 | 881 | 528 | 373 |
| 140 | Engineering | 71 | 871 | 658 | 978 |
| 141 | proteins | 26 | 866 | 574 | 525 |
| 142 | Signal Processing | 20 | 864 | 1007 | 810 |
| 143 | Optics | 40 | 825 | 1300 | 1125 |
| 144 | Environmental Microbiology | 19 | 823 | 403 | 478 |
| 145 | Pharmacokinetics | 11 | 810 | 307 | 161 |
| 146 | Statistics | 87 | 807 | 392 | 632 |
| 147 | Renewable Energy Sources | 17 | 803 | 1102 | 1292 |
| 148 | Solar Energy | 16 | 797 | 612 | 521 |
| 149 | Microbial Ecology | 21 | 787 | 723 | 909 |
| 150 | enzymes | 19 | 783 | 505 | 428 |
| 151 | Computer Science | 18 | 771 | 686 | 286 |
| 152 | Drug targeting | 13 | 759 | 55 | 34 |
| 153 | Molecular structure | 56 | 754 | 331 | 673 |
| 154 | Chromatography | 31 | 750 | 326 | 320 |
| 155 | Environmental Law | 6 | 744 | 691 | 461 |
| 156 | Crystal growth | 28 | 733 | 199 | 227 |
| 157 | Diet | 10 | 717 | 928 | 764 |
| 158 | Optical materials | 30 | 704 | 811 | 1039 |
| 159 | Thermodynamics | 44 | 702 | 134 | 143 |
| 160 | soil microbiology | 15 | 701 | 580 | 645 |
| 161 | Parasitic Diseases | 39 | 700 | 327 | 558 |
| 162 | Crystallography | 38 | 696 | 365 | 263 |
| 163 | Forest Management | 2 | 693 | 1059 | 297 |
| 164 | Dermatology | 29 | 688 | 459 | 480 |
| 164 | Forest Ecology | 1 | 688 | 1410 | 329 |
| 166 | Composite Materials | 20 | 687 | 1050 | 1090 |
| 167 | Semiconductors | 36 | 668 | 464 | 458 |
| 167 | India | 140 | 668 | 23 | 60 |
| 169 | X-ray spectroscopy | 24 | 667 | 15 | 7 |
| 170 | Thermochemistry | 42 | 661 | 52 | 90 |
| 171 | Algebra | 59 | 654 | 209 | 200 |
| 172 | Enzyme | 10 | 651 | 193 | 129 |
| 173 | Genomics | 24 | 644 | 929 | 1034 |
| 174 | Industry | 5 | 633 | 77 | 38 |
| 175 | Pathology | 45 | 616 | 446 | 730 |
| 176 | Electrical Engineering | 33 | 612 | 967 | 777 |
| 177 | Mechanical Engineering | 18 | 609 | 1019 | 591 |
| 178 | Parasites | 41 | 603 | 225 | 408 |
| 179 | Anthropology | 35 | 597 | 368 | 378 |
| 180 | Meteorites | 13 | 591 | 441 | 461 |
| 181 | Chemical structure | 8 | 588 | 200 | 34 |
| 182 | Crystallization | 3 | 575 | 500 | 71 |
| 183 | Geochemistry | 14 | 561 | 895 | 796 |
| 183 | pain | 8 | 561 | 688 | 498 |
| 185 | Luminescence | 18 | 557 | 417 | 253 |
| 186 | Image Processing | 21 | 556 | 804 | 882 |
| 187 | Mental Disorders | 23 | 554 | 859 | 1064 |
| 188 | Computer Vision | 7 | 552 | 717 | 480 |
| 189 | Biological Systems | 4 | 549 | 419 | 96 |
| 190 | Radiochemistry | 35 | 548 | 157 | 151 |
| 191 | Physical Chemistry | 38 | 545 | 545 | 857 |
| 192 | Virology | 13 | 543 | 1150 | 1283 |
| 193 | Astronomy | 15 | 541 | 1279 | 1221 |
| 194 | Sustainable Engineering | 17 | 531 | 577 | 690 |
| 195 | Genetic engineering | 33 | 530 | 453 | 815 |
| 196 | carcinogens | 28 | 526 | 157 | 352 |
| 197 | Neurotoxicology | 14 | 521 | 127 | 153 |
| 197 | plant molecular biology | 15 | 521 | 597 | 779 |
| 199 | Horticulture | 12 | 518 | 287 | 126 |
| 200 | genome | 6 | 515 | 878 | 712 |
| 201 | Medical Technology | 13 | 513 | 610 | 475 |
| 202 | Ultrasonics | 11 | 506 | 550 | 466 |
| 203 | Epidemiology | 12 | 505 | 1552 | 1189 |
| 204 | synthesis | 40 | 504 | 84 | 118 |
| 205 | Nitric oxide | 4 | 502 | 174 | 34 |
| 206 | China | 29 | 499 | 739 | 836 |
| 207 | Nanoparticles | 18 | 497 | 679 | 759 |
| 208 | Agricultural Chemistry | 15 | 491 | 893 | 897 |
| 209 | Drying | 7 | 484 | 196 | 83 |
| 210 | Steroids | 16 | 482 | 324 | 311 |
| 211 | Immunopathology | 8 | 473 | 622 | 493 |
| 212 | Medical Oncology | 37 | 469 | 344 | 688 |
| 213 | Ophthalmology | 23 | 466 | 597 | 687 |
| 214 | drug toxicity | 5 | 465 | 274 | 83 |
| 215 | energy conservation | 14 | 464 | 850 | 1055 |
| 215 | Nervous system | 13 | 464 | 1044 | 1052 |
| 217 | Environmental Geology | 24 | 457 | 401 | 616 |
| 218 | Photochemistry | 20 | 455 | 528 | 632 |
| 218 | biological evolution | 17 | 455 | 764 | 1015 |
| 220 | Human evolution | 16 | 451 | 129 | 204 |
| 221 | Human-Computer Interaction | 9 | 448 | 826 | 539 |
| 222 | Psychology | 36 | 447 | 1319 | 1756 |
| 223 | Adolescent | 12 | 445 | 921 | 741 |
| 224 | protein | 4 | 440 | 957 | 449 |
| 225 | Photobiology | 18 | 436 | 358 | 461 |
| 226 | Mycology | 49 | 428 | 238 | 665 |
| 227 | Smart Materials | 9 | 426 | 470 | 318 |
| 228 | Sustainable agriculture | 9 | 424 | 291 | 223 |
| 228 | Child | 12 | 424 | 1038 | 857 |
| 230 | Nanochemistry | 15 | 423 | 360 | 291 |
| 231 | Mitochondria | 8 | 419 | 67 | 70 |
| 231 | Recombinant DNA | 23 | 419 | 381 | 555 |
| 233 | management | 52 | 416 | 741 | 1695 |
| 234 | miniaturization | 11 | 414 | 886 | 948 |
| 235 | Medical genetics | 3 | 412 | 1638 | 1126 |
| 236 | Sonochemistry | 8 | 411 | 293 | 314 |
| 237 | Agronomy | 4 | 410 | 333 | 217 |
| 238 | dietary supplements | 6 | 409 | 504 | 272 |
| 239 | Production Engineering | 9 | 407 | 1121 | 654 |
| 240 | Apoptosis | 9 | 405 | 68 | 51 |
| 240 | neurotoxins | 9 | 405 | 68 | 51 |
| 240 | Neurotoxic agents | 9 | 405 | 68 | 51 |
| 240 | Fuzzy systems | 19 | 405 | 463 | 377 |
| 240 | Human biology | 30 | 405 | 83 | 152 |
| 240 | Nerve regeneration | 9 | 405 | 68 | 51 |
| 246 | Electrophoresis | 15 | 403 | 630 | 632 |
| 247 | Medical innovations | 5 | 397 | 601 | 612 |
| 247 | free radicals | 8 | 397 | 762 | 792 |
| 249 | Food Microbiology | 6 | 396 | 766 | 640 |
| 249 | Mutagenesis | 23 | 396 | 34 | 76 |
| 251 | drug therapy | 8 | 394 | 1028 | 828 |
| 252 | Nonlinear Dynamics | 29 | 392 | 674 | 896 |
| 253 | Molecular Pharmacology | 8 | 390 | 425 | 409 |
| 254 | teratogenic agents | 22 | 386 | 6 | 11 |
| 255 | Food additives | 6 | 384 | 698 | 528 |
| 255 | hydrocolloids | 6 | 384 | 402 | 393 |
| 257 | Human genetics | 2 | 380 | 1562 | 1373 |
| 258 | Computer Graphics | 17 | 375 | 660 | 698 |
| 259 | Energy Policy | 9 | 371 | 1580 | 1627 |
| 259 | radioactive waste | 2 | 371 | 995 | 510 |
| 259 | industrial waste | 2 | 371 | 1041 | 512 |
| 259 | Hazardous waste | 2 | 371 | 1160 | 541 |
| 263 | Geophysics | 37 | 366 | 982 | 1556 |
| 264 | health planning | 24 | 365 | 626 | 774 |
| 265 | Chemical analysis | 9 | 360 | 589 | 485 |
| 266 | Information Science | 17 | 356 | 990 | 1277 |
| 267 | Electrochemical Analysis | 20 | 355 | 541 | 693 |
| 267 | Intelligent Control Systems | 8 | 355 | 622 | 189 |
| 269 | Soil Science | 17 | 354 | 701 | 929 |
| 270 | Immunotherapy | 12 | 348 | 740 | 895 |
| 271 | Engineering Geology | 12 | 347 | 662 | 667 |
| 272 | Metabolism | 11 | 344 | 1115 | 1262 |
| 272 | Systems Biology | 8 | 344 | 801 | 637 |
| 274 | Organometallic compounds | 36 | 343 | 247 | 577 |
| 275 | Tribology | 8 | 340 | 676 | 458 |
| 276 | Sustainable Development | 16 | 338 | 689 | 1014 |
| 277 | Evolution | 18 | 334 | 683 | 965 |
| 278 | Magnetic Materials | 15 | 332 | 661 | 728 |
| 279 | Community Psychiatry | 4 | 330 | 729 | 433 |
| 280 | Microstructure | 13 | 327 | 288 | 169 |
| 281 | Immunopharmacology | 9 | 324 | 523 | 442 |
| 282 | Bacteriology | 18 | 323 | 657 | 1044 |
| 283 | environmental indicators | 6 | 322 | 799 | 664 |
| 283 | natural disasters | 15 | 322 | 396 | 569 |
| 285 | water reuse | 6 | 321 | 145 | 91 |
| 286 | scientific societies | 24 | 318 | 132 | 275 |
| 287 | complementary therapies | 11 | 315 | 676 | 651 |
| 288 | Solutions | 15 | 308 | 80 | 77 |
| 289 | Digestive system diseases | 8 | 300 | 503 | 429 |
| 290 | Alternative Medicine | 11 | 297 | 618 | 662 |
| 290 | biomedicine | 4 | 297 | 380 | 206 |
| 292 | peptides | 11 | 296 | 274 | 204 |
| 293 | Numerical Analysis | 34 | 293 | 629 | 953 |
| 294 | Chromosomes | 11 | 292 | 402 | 495 |
| 295 | global environmental change | 2 | 288 | 942 | 512 |
| 296 | Petrology | 6 | 286 | 642 | 568 |
| 296 | Malaria | 3 | 286 | 588 | 280 |
| 298 | Herbal medicine | 8 | 285 | 332 | 377 |
| 298 | Raman spectroscopy | 10 | 285 | 339 | 327 |
| 300 | Paleogeography | 11 | 284 | 455 | 550 |
| 301 | Bioinorganic chemistry | 15 | 282 | 618 | 737 |
| 302 | polar regions | 5 | 281 | 457 | 262 |
| 303 | Molecular cloning | 18 | 280 | 431 | 701 |
| 303 | Genetic recombination | 18 | 280 | 422 | 687 |
| 305 | biological invasions | 2 | 275 | 720 | 302 |
| 306 | Computer Engineering | 12 | 274 | 314 | 274 |
| 307 | cytokines | 7 | 271 | 691 | 681 |
| 308 | Pesticides | 11 | 269 | 217 | 200 |
| 309 | Carcinogenesis | 25 | 268 | 189 | 550 |
| 309 | Drug delivery devices | 11 | 268 | 25 | 143 |
| 311 | Paleoecology | 9 | 265 | 618 | 625 |
| 312 | Ceramics | 2 | 262 | 1636 | 638 |
| 313 | Biodegradation | 7 | 259 | 389 | 381 |
| 313 | Soil biology | 3 | 259 | 837 | 681 |
| 315 | Information Technology | 20 | 258 | 771 | 1256 |
| 316 | Paleobiology | 15 | 256 | 74 | 63 |
| 317 | pain management | 3 | 255 | 536 | 257 |
| 317 | Infrared spectroscopy | 8 | 255 | 101 | 92 |
| 319 | Water Microbiology | 7 | 254 | 174 | 170 |
| 320 | Histology | 13 | 253 | 824 | 1030 |
| 320 | Plant tissue culture | 13 | 253 | 221 | 354 |
| 320 | Plant cell culture | 12 | 253 | 198 | 349 |
| 323 | Paleoclimatology | 7 | 251 | 704 | 691 |
| 323 | Bioremediation | 7 | 251 | 435 | 423 |
| 325 | Physical organic chemistry | 19 | 249 | 501 | 752 |
| 326 | Vaccines | 9 | 246 | 807 | 823 |
| 327 | Water | 9 | 244 | 1356 | 1702 |
| 328 | Fouling | 5 | 240 | 128 | 126 |
| 329 | Serology | 10 | 236 | 148 | 196 |
| 330 | Environmental Geochemistry | 7 | 233 | 216 | 165 |
| 330 | Molecules | 19 | 233 | 591 | 725 |
| 330 | Minerals | 7 | 233 | 410 | 321 |
| 333 | Australia | 13 | 232 | 704 | 744 |
| 334 | Calorimetry | 15 | 230 | 391 | 504 |
| 334 | Thermal analysis | 15 | 230 | 391 | 504 |
| 336 | Screening | 9 | 229 | 40 | 51 |
| 337 | Bacterial infections | 9 | 228 | 355 | 586 |
| 338 | System analysis | 17 | 227 | 961 | 1319 |
| 338 | Tropical Medicine | 14 | 227 | 686 | 797 |
| 340 | Antibacterial agents | 3 | 226 | 582 | 390 |
| 341 | Geriatrics | 6 | 222 | 1760 | 1354 |
| 341 | Aging | 5 | 222 | 1765 | 1323 |
| 343 | Planetary Science | 9 | 221 | 244 | 203 |
| 343 | Quality Control | 8 | 221 | 914 | 953 |
| 343 | cell physiology | 1 | 221 | 1683 | 1005 |
| 346 | Chemical Ecology | 3 | 218 | 508 | 360 |
| 346 | pheromones | 3 | 218 | 464 | 338 |
| 346 | Jurisprudence | 17 | 218 | 304 | 412 |
| 349 | Antioxidants | 6 | 217 | 472 | 612 |
| 350 | Dementia | 22 | 215 | 441 | 541 |
| 350 | Alzheimer's disease | 22 | 215 | 449 | 584 |
| 352 | Radiation | 23 | 214 | 673 | 1021 |
| 352 | mass transfer | 10 | 214 | 965 | 1122 |
| 352 | biological monitoring | 1 | 214 | 863 | 258 |
| 355 | Industrial Engineering | 16 | 212 | 668 | 1092 |
| 355 | vibration | 11 | 212 | 553 | 675 |
| 357 | vitamin C | 5 | 209 | 257 | 273 |
| 357 | vitamin E | 5 | 209 | 257 | 273 |
| 359 | Obstetrics | 10 | 201 | 1089 | 1153 |
| 359 | Egypt | 21 | 201 | 70 | 264 |
| 361 | Bacteria | 6 | 199 | 183 | 305 |
| 362 | nucleic acids | 6 | 198 | 1019 | 1136 |
| 363 | environmental remediation | 6 | 195 | 142 | 137 |
| 364 | Algorithms | 9 | 194 | 341 | 305 |
| 365 | Genetic Toxicology | 5 | 193 | 251 | 316 |
| 366 | Pediatric Dermatology | 7 | 192 | 199 | 136 |
| 367 | Mineralogy | 7 | 189 | 825 | 776 |
| 367 | Mental illness | 2 | 189 | 1709 | 1230 |
| 369 | Reproductive toxicology | 4 | 188 | 301 | 261 |
| 370 | Heterocyclic compounds | 15 | 183 | 330 | 359 |
| 371 | probabilities | 15 | 182 | 602 | 609 |
| 371 | Disease | 5 | 182 | 198 | 496 |
| 373 | consumer behavior | 1 | 180 | 973 | 406 |
| 374 | drug development | 18 | 179 | 236 | 789 |
| 375 | Phytochemistry | 5 | 177 | 133 | 134 |
| 375 | Plant Biotechnology | 18 | 177 | 177 | 499 |
| 375 | Phytoremediation | 5 | 177 | 133 | 134 |
| 375 | Bioreactors | 5 | 177 | 133 | 134 |
| 379 | Hormones | 6 | 175 | 794 | 843 |
| 380 | elasticity | 4 | 174 | 208 | 118 |
| 381 | Plant cells | 4 | 173 | 799 | 1063 |
| 382 | Liquid chromatography | 7 | 171 | 259 | 133 |
| 383 | Materials Engineering | 8 | 170 | 305 | 267 |
| 383 | plant communities | 3 | 170 | 977 | 887 |
| 385 | mutation | 6 | 168 | 345 | 452 |
| 386 | Endocrinology | 8 | 166 | 1482 | 1780 |
| 386 | Nanomedicine | 3 | 166 | 209 | 164 |
| 386 | Ethics | 12 | 166 | 362 | 439 |
| 389 | Neuroimmunology | 4 | 165 | 526 | 614 |
| 389 | particles | 7 | 165 | 583 | 593 |
| 391 | Mobile Computing | 4 | 164 | 957 | 686 |
| 391 | Clinical Biochemistry | 27 | 164 | 246 | 702 |
| 393 | Breeding | 2 | 163 | 1271 | 790 |
| 394 | Microbial Genetics | 14 | 162 | 83 | 256 |
| 394 | Vegetation | 14 | 162 | 7 | 12 |
| 396 | epilepsy | 5 | 160 | 642 | 549 |
| 396 | Liposomes | 4 | 160 | 498 | 420 |
| 396 | alcoholism | 10 | 160 | 667 | 908 |
| 399 | Mechanics | 10 | 159 | 670 | 699 |
| 399 | lasers | 13 | 159 | 1050 | 1264 |
| 401 | Structural design | 7 | 158 | 506 | 540 |
| 402 | Plant diseases | 12 | 157 | 935 | 1206 |
| 402 | Landslides | 5 | 157 | 141 | 241 |
| 404 | Fungi | 14 | 154 | 383 | 825 |
| 405 | Contraception | 11 | 153 | 236 | 358 |
| 406 | Computational Biology | 12 | 152 | 1121 | 1604 |
| 406 | mathematical analysis | 21 | 152 | 1054 | 1324 |
| 408 | Hydrology | 15 | 149 | 1012 | 1589 |
| 408 | Engineering Ethics | 11 | 149 | 34 | 112 |
| 408 | Professional ethics | 11 | 149 | 47 | 134 |
| 411 | DNS | 6 | 148 | 270 | 320 |
| 411 | Granular materials | 4 | 148 | 493 | 407 |
| 411 | DNA | 6 | 148 | 352 | 341 |
| 414 | Operations Research | 28 | 147 | 710 | 1518 |
| 415 | toxicity testing | 6 | 146 | 332 | 398 |
| 416 | Friction | 1 | 144 | 244 | 90 |
| 417 | Fluorescence | 13 | 143 | 67 | 185 |
| 418 | Urology | 5 | 142 | 952 | 915 |
| 418 | Toxins | 10 | 142 | 334 | 571 |
| 420 | pigments | 11 | 141 | 357 | 627 |
| 421 | Oxidative stress | 3 | 140 | 803 | 961 |
| 421 | antibiotics | 6 | 140 | 88 | 128 |
| 423 | Behavior | 7 | 139 | 1881 | 2460 |
| 423 | Genes | 5 | 139 | 790 | 771 |
| 425 | Ceramic materials | 8 | 138 | 797 | 947 |
| 426 | Visual Communication | 6 | 137 | 228 | 210 |
| 426 | Image enhancement | 6 | 137 | 167 | 198 |
| 426 | Communication | 6 | 137 | 1423 | 1453 |
| 429 | Soft Condensed Matter | 6 | 136 | 704 | 782 |
| 429 | biopolymers | 6 | 136 | 779 | 867 |
| 431 | Electronics | 25 | 134 | 1188 | 2046 |
| 431 | Criminal investigation | 8 | 134 | 63 | 81 |
| 433 | Telecommunication Systems | 9 | 132 | 901 | 1014 |
| 433 | plasma spraying | 3 | 132 | 219 | 140 |
| 435 | Forensic Pathology | 10 | 131 | 38 | 47 |
| 435 | food handling | 4 | 131 | 744 | 836 |
| 437 | Health Risk Assessment | 5 | 130 | 263 | 244 |
| 438 | Plant breeding | 4 | 129 | 614 | 543 |
| 439 | Geomorphology | 9 | 128 | 808 | 1219 |
| 440 | Safety management | 8 | 127 | 220 | 259 |
| 441 | Developmental Biology | 5 | 126 | 1326 | 1536 |
| 442 | Energy Storage | 6 | 125 | 845 | 1008 |
| 443 | Green Technology | 2 | 123 | 562 | 271 |
| 444 | Orthopedics | 4 | 122 | 1076 | 953 |
| 444 | Public Administration | 27 | 122 | 354 | 869 |
| 444 | Bioinformatics | 7 | 122 | 1223 | 1453 |
| 447 | Signal Transduction | 8 | 121 | 776 | 1236 |
| 448 | Ecological Engineering | 2 | 119 | 790 | 686 |
| 448 | Porous materials | 10 | 119 | 291 | 450 |
| 450 | Data Mining | 10 | 118 | 756 | 1305 |
| 450 | Psychoneuroimmunology | 3 | 118 | 540 | 642 |
| 450 | Industrial Safety | 3 | 118 | 1159 | 889 |
| 450 | biochemical markers | 6 | 118 | 352 | 418 |
| 450 | Soil ecology | 1 | 118 | 1190 | 741 |
| 455 | ethanol | 7 | 117 | 263 | 354 |
| 456 | Liquid Crystals | 5 | 116 | 714 | 405 |
| 456 | Risk assessment | 3 | 116 | 620 | 370 |
| 456 | ecological risk assessment | 3 | 116 | 213 | 165 |
| 459 | Obesity | 2 | 115 | 1776 | 1502 |
| 460 | Developing countries | 12 | 114 | 1037 | 1680 |
| 461 | Radioisotopes | 14 | 113 | 401 | 614 |
| 462 | Evolutionary Genetics | 3 | 112 | 642 | 527 |
| 462 | Molecular Epidemiology | 3 | 112 | 642 | 527 |
| 462 | economic policy | 11 | 112 | 1223 | 1399 |
| 462 | Plastics | 14 | 112 | 714 | 1202 |
| 466 | Biochemical Genetics | 7 | 111 | 192 | 175 |
| 466 | Immunochemistry | 3 | 111 | 898 | 716 |
| 468 | Substance Abuse | 5 | 110 | 966 | 989 |
| 468 | Watershed management | 3 | 110 | 199 | 88 |
| 468 | Emulsions | 4 | 110 | 293 | 161 |
| 471 | Biodiversity | 13 | 108 | 955 | 1669 |
| 472 | Education | 11 | 106 | 1877 | 2303 |
| 472 | Child Development | 7 | 106 | 1131 | 1481 |
| 472 | Lipids | 3 | 106 | 1153 | 1173 |
| 475 | Law | 8 | 105 | 750 | 536 |
| 475 | silicon | 19 | 105 | 44 | 166 |
| 477 | Detectors | 6 | 104 | 1070 | 1252 |
| 478 | Neurobiology | 6 | 102 | 1036 | 1409 |
| 478 | Sedimentary rocks | 4 | 102 | 523 | 579 |
| 480 | preventive medicine | 5 | 100 | 792 | 971 |
| 481 | Quantum electronics | 12 | 99 | 770 | 1136 |
| 481 | Neuropharmacology | 4 | 99 | 474 | 508 |
| 483 | Dynamics | 8 | 97 | 998 | 1113 |
| 483 | Graphene | 1 | 97 | 257 | 150 |
| 483 | Library Science | 11 | 97 | 350 | 437 |
| 486 | Number Theory | 14 | 96 | 304 | 346 |
| 486 | Longevity | 2 | 96 | 223 | 173 |
| 486 | rejuvenation | 2 | 96 | 161 | 145 |
| 489 | Ultrasonic Imaging | 3 | 95 | 502 | 444 |
| 490 | Plant Morphology | 5 | 94 | 438 | 486 |
| 490 | Microelectronics | 5 | 94 | 1277 | 1485 |
| 490 | Ultrasound | 2 | 94 | 822 | 643 |
| 493 | Child psychology | 6 | 93 | 950 | 1302 |
| 493 | Immunity | 6 | 93 | 1034 | 1586 |
| 495 | Differential Equations | 7 | 92 | 712 | 758 |
| 495 | Gene expression regulation | 5 | 92 | 650 | 842 |
| 495 | Genetic regulation | 5 | 92 | 724 | 993 |
| 498 | Radiology | 8 | 91 | 744 | 862 |
| 498 | Economics | 20 | 91 | 1709 | 2742 |
| 500 | Diabetes mellitus | 8 | 90 | 982 | 1584 |
| 500 | Molecular evolution | 6 | 90 | 934 | 1493 |
| 500 | Capital market | 4 | 90 | 345 | 453 |
| 500 | Diabetes | 8 | 90 | 1024 | 1618 |
| 504 | Teaching | 5 | 89 | 1364 | 1379 |
| 504 | Chemical industry | 5 | 89 | 982 | 965 |
| 504 | Microscopy | 6 | 89 | 957 | 1005 |
| 507 | Metallurgy | 8 | 88 | 1359 | 1620 |
| 508 | Nanoelectronics | 3 | 86 | 752 | 527 |
| 508 | patents | 4 | 86 | 21 | 32 |
| 508 | Magnetism | 1 | 86 | 314 | 38 |
| 508 | Semiconductor industry | 3 | 86 | 559 | 418 |
| 512 | big data | 7 | 85 | 260 | 556 |
| 513 | Economic History | 29 | 83 | 972 | 2272 |
| 513 | cosmic rays | 6 | 83 | 269 | 326 |
| 515 | Public Relations | 6 | 82 | 257 | 382 |
| 515 | Energy Conversion | 4 | 82 | 1019 | 1374 |
| 515 | fuel cells | 4 | 82 | 1037 | 1285 |
| 515 | Optoelectronic devices | 11 | 82 | 404 | 612 |
| 519 | Orthopedic Surgery | 3 | 81 | 663 | 608 |
| 519 | Proteome | 5 | 81 | 767 | 1099 |
| 519 | Drug discovery | 3 | 81 | 207 | 245 |
| 522 | Agricultural Engineering | 2 | 80 | 530 | 467 |
| 522 | Laser therapy | 3 | 80 | 429 | 298 |
| 522 | Genetic markers | 5 | 80 | 127 | 205 |
| 522 | Africa | 11 | 80 | 684 | 982 |
| 526 | Waste management | 4 | 79 | 1192 | 1228 |
| 527 | Neural circuitry | 8 | 77 | 1244 | 2100 |
| 527 | gene therapy | 4 | 77 | 724 | 943 |
| 527 | Ethnology | 11 | 77 | 677 | 1012 |
| 530 | Cellular senescence | 1 | 76 | 601 | 666 |
| 531 | Reproduction | 9 | 75 | 1183 | 1744 |
| 532 | Sociology | 16 | 74 | 1209 | 2465 |
| 532 | Autoantibodies | 2 | 74 | 589 | 621 |
| 532 | Autoimmunity | 2 | 74 | 715 | 789 |
| 532 | Autoimmune diseases | 2 | 74 | 635 | 660 |
| 532 | Yeast | 2 | 74 | 500 | 500 |
| 532 | Primates | 3 | 74 | 678 | 638 |
| 538 | Supramolecular chemistry | 6 | 73 | 119 | 162 |
| 538 | United States | 11 | 73 | 2388 | 3577 |
| 538 | Menopause | 3 | 73 | 280 | 299 |
| 541 | Food Science | 6 | 72 | 74 | 129 |
| 541 | foods | 1 | 72 | 281 | 144 |
| 543 | Water pollution | 5 | 71 | 1963 | 2586 |
| 543 | Geodynamics | 3 | 71 | 800 | 880 |
| 543 | Growth | 2 | 71 | 1091 | 1228 |
| 546 | drug interactions | 4 | 70 | 35 | 42 |
| 547 | Functional equations | 9 | 69 | 56 | 95 |
| 548 | Global Health | 8 | 68 | 532 | 908 |
| 548 | Oral Medicine | 4 | 68 | 654 | 593 |
| 548 | Municipal Engineering | 2 | 68 | 443 | 412 |
| 548 | solar power | 4 | 68 | 682 | 1105 |
| 548 | Health | 9 | 68 | 1090 | 1842 |
| 548 | Chemical kinetics | 2 | 68 | 987 | 512 |
| 548 | Paleopathology | 1 | 68 | 517 | 227 |
| 548 | solar cells | 4 | 68 | 737 | 1155 |
| 556 | Atmospheric Physics | 4 | 67 | 1169 | 1442 |
| 556 | Computational Complexity | 4 | 67 | 907 | 843 |
| 558 | Plant Genetics | 4 | 66 | 548 | 855 |
| 559 | Atmospheric Chemistry | 1 | 65 | 1093 | 1005 |
| 559 | Machining | 3 | 65 | 140 | 125 |
| 559 | cell interaction | 4 | 65 | 803 | 1166 |
| 562 | Social Sciences | 10 | 64 | 1872 | 2720 |
| 562 | air quality management | 2 | 64 | 665 | 629 |
| 562 | Tourism | 3 | 64 | 1661 | 1959 |
| 562 | soil conservation | 3 | 64 | 763 | 915 |
| 562 | Cosmochemistry | 5 | 64 | 653 | 970 |
| 562 | Cell survival | 2 | 64 | 258 | 313 |
| 562 | RNA | 5 | 64 | 354 | 613 |
| 562 | molecular chaperones | 2 | 64 | 301 | 315 |
| 570 | Evidence-Based Medicine | 2 | 63 | 876 | 801 |
| 570 | Foraminifera | 1 | 63 | 168 | 95 |
| 572 | Cross-Cultural Studies | 6 | 62 | 428 | 777 |
| 572 | Integrated Circuits | 8 | 62 | 445 | 476 |
| 572 | cross-cultural comparison | 6 | 62 | 300 | 527 |
| 572 | Host-parasite interactions | 3 | 62 | 1039 | 1401 |
| 576 | Probiotics | 6 | 61 | 57 | 254 |
| 576 | Cell metabolism | 5 | 61 | 437 | 970 |
| 576 | Entomology | 19 | 61 | 840 | 1796 |
| 579 | Zoology | 11 | 60 | 1323 | 1999 |
| 579 | Anthropological Linguistics | 8 | 60 | 102 | 108 |
| 579 | Enzyme inhibitors | 2 | 60 | 538 | 495 |
| 582 | mycoses | 8 | 59 | 395 | 942 |
| 583 | Information Systems | 2 | 58 | 1655 | 1541 |
| 583 | Human Geography | 11 | 58 | 523 | 1028 |
| 583 | Metabolic diseases | 4 | 58 | 1448 | 1957 |
| 583 | catalytic activity | 2 | 58 | 769 | 828 |
| 587 | Anatomy | 10 | 57 | 1032 | 1746 |
| 587 | Molecular Microbiology | 2 | 57 | 869 | 1093 |
| 589 | vitamins | 1 | 56 | 284 | 239 |
| 590 | Plant genetic engineering | 2 | 55 | 969 | 1096 |
| 590 | machinery | 2 | 55 | 1006 | 835 |
| 590 | Quality of life | 3 | 55 | 1345 | 1676 |
| 593 | Automation | 5 | 54 | 1708 | 2270 |
| 593 | Total Quality Management | 2 | 54 | 741 | 726 |
| 593 | personality | 3 | 54 | 1423 | 1754 |
| 593 | Metallography | 3 | 54 | 786 | 951 |
| 597 | Computational Linguistics | 6 | 53 | 305 | 423 |
| 597 | Superconductors | 3 | 53 | 852 | 759 |
| 597 | Superconductivity | 3 | 53 | 441 | 420 |
| 597 | Chemical processes | 4 | 53 | 468 | 602 |
| 597 | marketing | 5 | 53 | 1509 | 2106 |
| 602 | Cryptography | 4 | 52 | 565 | 494 |
| 602 | Methodology | 2 | 52 | 688 | 505 |
| 602 | commerce | 6 | 52 | 1078 | 1699 |
| 605 | Optoelectronics | 4 | 51 | 439 | 409 |
| 605 | Fiber Optics | 4 | 51 | 787 | 974 |
| 607 | Cosmology | 6 | 50 | 433 | 672 |
| 607 | Food Preservation | 3 | 50 | 826 | 811 |
| 607 | East Asia | 5 | 50 | 422 | 553 |
| 607 | infection | 4 | 50 | 1138 | 1561 |
| 607 | Cellulose | 5 | 50 | 415 | 921 |
| 607 | amino acids | 2 | 50 | 721 | 801 |
| 613 | Oceanography | 4 | 49 | 1294 | 1647 |
| 613 | Estuaries | 1 | 49 | 238 | 245 |
| 615 | Functional Analysis | 2 | 48 | 1564 | 1298 |
| 615 | Risk Management | 3 | 48 | 633 | 818 |
| 615 | Lipid metabolism | 1 | 48 | 673 | 648 |
| 615 | Lipid | 1 | 48 | 675 | 650 |
| 615 | Investments | 22 | 48 | 44 | 602 |
| 620 | animals | 9 | 47 | 662 | 1186 |
| 621 | General Surgery | 10 | 46 | 271 | 471 |
| 621 | Nanobiotechnology | 1 | 46 | 727 | 853 |
| 621 | Computer-Aided Design | 10 | 46 | 587 | 1368 |
| 621 | Telecommunication | 11 | 46 | 1373 | 2481 |
| 621 | explosives | 3 | 46 | 170 | 138 |
| 621 | Insects | 14 | 46 | 570 | 1389 |
| 627 | Histochemistry | 4 | 45 | 836 | 1075 |
| 627 | Spectroscopy | 14 | 45 | 22 | 54 |
| 627 | Cell surface receptors | 2 | 45 | 151 | 137 |
| 630 | technology transfer | 1 | 43 | 551 | 448 |
| 630 | Vaccination | 2 | 43 | 289 | 382 |
| 630 | Adhesion | 5 | 43 | 499 | 832 |
| 630 | Globalization | 1 | 43 | 1037 | 750 |
| 630 | baking | 1 | 43 | 332 | 275 |
| 630 | adhesives | 5 | 43 | 533 | 842 |
| 636 | Immunogenetics | 2 | 42 | 660 | 711 |
| 636 | food contamination | 4 | 42 | 843 | 1223 |
| 636 | Corporate governance | 3 | 42 | 640 | 946 |
| 636 | Gerontology | 2 | 42 | 2021 | 1764 |
| 640 | Structural dynamics | 1 | 41 | 1327 | 1341 |
| 640 | Virulence | 1 | 41 | 1283 | 1440 |
| 640 | Kidney diseases | 1 | 41 | 1140 | 984 |
| 643 | Fluid Dynamics | 4 | 40 | 937 | 1243 |
| 643 | child behavior | 2 | 40 | 466 | 564 |
| 643 | eugenics | 3 | 40 | 497 | 694 |
| 643 | venom | 7 | 40 | 404 | 1014 |
| 647 | Economic Geography | 2 | 39 | 465 | 505 |
| 647 | Infertility | 3 | 39 | 701 | 1063 |
| 647 | energy resources | 1 | 39 | 1901 | 2145 |
| 647 | fertility | 3 | 39 | 789 | 1126 |
| 651 | Marine Biology | 3 | 38 | 2150 | 2671 |
| 651 | Pharmacogenetics | 1 | 38 | 1163 | 1101 |
| 651 | Stochastic Processes | 2 | 38 | 1130 | 1033 |
| 651 | Heterocyclic chemistry | 6 | 38 | 296 | 519 |
| 651 | Climate change | 2 | 38 | 1081 | 1599 |
| 651 | Biomarkers | 1 | 38 | 730 | 561 |
| 651 | monitoring | 1 | 38 | 474 | 321 |
| 651 | Genetic therapy | 1 | 38 | 1190 | 1182 |
| 659 | Land use | 2 | 37 | 1343 | 1620 |
| 659 | Quantum Optics | 3 | 37 | 888 | 986 |
| 659 | Access to Information | 2 | 37 | 271 | 418 |
| 659 | land degradation | 2 | 37 | 611 | 841 |
| 659 | Atomic spectroscopy | 3 | 37 | 1083 | 1254 |
| 659 | energy development | 3 | 37 | 825 | 1355 |
| 659 | Laser Spectroscopy | 3 | 37 | 841 | 943 |
| 659 | coal | 3 | 37 | 1529 | 2213 |
| 659 | Decision making | 3 | 37 | 1419 | 1804 |
| 659 | Informatics | 4 | 37 | 717 | 1114 |
| 659 | Information dissemination | 2 | 37 | 271 | 418 |
| 659 | degradation | 2 | 37 | 611 | 841 |
| 671 | Dentistry | 5 | 36 | 543 | 711 |
| 671 | Occupational Therapy | 2 | 36 | 1149 | 890 |
| 671 | Occupational Health | 2 | 36 | 1185 | 1157 |
| 671 | Economic Development | 5 | 36 | 1155 | 1970 |
| 671 | industrial hygiene | 2 | 36 | 1190 | 1012 |
| 671 | Measurement | 4 | 36 | 1182 | 1704 |
| 671 | soil pollution | 2 | 36 | 724 | 861 |
| 671 | Urbanization | 2 | 36 | 242 | 276 |
| 671 | ecosystem | 2 | 36 | 1407 | 1825 |
| 671 | food industry | 2 | 36 | 1001 | 1035 |
| 681 | Venture Capital | 20 | 35 | 27 | 612 |
| 681 | Aquaculture | 4 | 35 | 1181 | 1668 |
| 683 | Climatology | 2 | 34 | 1830 | 2062 |
| 683 | Erosion | 1 | 34 | 241 | 230 |
| 683 | Trace elements | 1 | 34 | 523 | 574 |
| 686 | Hematology | 4 | 33 | 1290 | 1839 |
| 686 | Pediatrics | 9 | 33 | 1100 | 2230 |
| 686 | Geopolitics | 1 | 33 | 500 | 376 |
| 686 | Sovereignty | 1 | 33 | 259 | 237 |
| 686 | X-ray crystallography | 2 | 33 | 595 | 584 |
| 686 | Stem cells | 2 | 33 | 1272 | 1577 |
| 686 | anesthesia | 5 | 33 | 349 | 511 |
| 686 | Antarctica | 3 | 33 | 518 | 640 |
| 694 | Marine Pollution | 1 | 32 | 1736 | 1803 |
| 694 | Cardiovascular diseases | 1 | 32 | 1779 | 1540 |
| 694 | Cell communication | 1 | 32 | 901 | 1003 |
| 697 | Photography | 3 | 31 | 985 | 576 |
| 697 | Religion and Psychology | 1 | 31 | 1041 | 718 |
| 699 | Radiation Protection | 4 | 30 | 506 | 603 |
| 699 | Fishery management | 3 | 30 | 757 | 1047 |
| 699 | radiation monitoring | 4 | 30 | 439 | 559 |
| 699 | adolescence | 3 | 30 | 888 | 1294 |
| 699 | Metabolic syndrome | 2 | 30 | 346 | 514 |
| 699 | Ferroelectricity | 5 | 30 | 780 | 1027 |
| 699 | hazard mitigation | 4 | 30 | 769 | 1520 |
| 699 | older people | 1 | 30 | 2109 | 1554 |
| 699 | aromatic plants | 5 | 30 | 146 | 284 |
| 699 | Catalysts | 2 | 30 | 842 | 995 |
| 709 | Civil Engineering | 3 | 29 | 1457 | 1547 |
| 709 | Animal Biotechnology | 3 | 29 | 150 | 295 |
| 709 | Fluid Mechanics | 4 | 29 | 1255 | 1738 |
| 709 | Proteomics | 2 | 29 | 1124 | 1471 |
| 709 | Seismology | 5 | 29 | 316 | 609 |
| 709 | Optical Communications | 7 | 29 | 448 | 941 |
| 709 | Morphology | 3 | 29 | 892 | 1014 |
| 709 | Integrative Medicine | 4 | 29 | 216 | 346 |
| 709 | Planets | 1 | 29 | 1685 | 1797 |
| 709 | concrete | 3 | 29 | 917 | 1446 |
| 709 | Ore deposits | 1 | 29 | 741 | 750 |
| 709 | Cement | 3 | 29 | 559 | 990 |
| 709 | Membranes | 3 | 29 | 1482 | 2119 |
| 709 | impact | 1 | 29 | 496 | 567 |
| 723 | genre | 1 | 28 | 465 | 362 |
| 723 | sanitation | 2 | 28 | 1478 | 2116 |
| 723 | Traditional medicine | 1 | 28 | 382 | 486 |
| 723 | Microorganisms | 2 | 28 | 1129 | 1552 |
| 723 | Immune system | 1 | 28 | 1172 | 1277 |
| 728 | Systems Engineering | 5 | 27 | 1707 | 2629 |
| 728 | Cybernetics | 6 | 27 | 1106 | 2056 |
| 728 | Urban Geography | 1 | 27 | 412 | 396 |
| 728 | sustainability | 1 | 27 | 1427 | 1501 |
| 728 | human behavior | 3 | 27 | 2234 | 3442 |
| 728 | labor | 5 | 27 | 204 | 427 |
| 728 | industrial relations | 5 | 27 | 634 | 1119 |
| 728 | Metals | 6 | 27 | 1407 | 2296 |
| 728 | Fisheries | 4 | 27 | 1244 | 1809 |
| 737 | Remote Sensing | 6 | 26 | 1008 | 1686 |
| 737 | Statistical Mechanics | 3 | 26 | 633 | 765 |
| 737 | symbiosis | 2 | 26 | 182 | 312 |
| 737 | Magnetohydrodynamics | 3 | 26 | 228 | 313 |
| 737 | Holistic Health | 3 | 26 | 456 | 723 |
| 737 | Sulfur | 7 | 26 | 31 | 148 |
| 737 | data collection | 2 | 26 | 1286 | 1637 |
| 737 | bioluminescence | 1 | 26 | 715 | 519 |
| 737 | Radiation dosimetry | 3 | 26 | 413 | 497 |
| 737 | hygiene | 1 | 26 | 861 | 867 |
| 747 | Development Economics | 1 | 25 | 762 | 721 |
| 747 | Animal Behavior | 2 | 25 | 1873 | 2426 |
| 747 | Social Networks | 2 | 25 | 410 | 614 |
| 747 | Online social networks | 2 | 25 | 398 | 553 |
| 747 | Ethology | 2 | 25 | 1484 | 2058 |
| 747 | Electrophysiology | 7 | 25 | 563 | 1108 |
| 753 | Software Engineering | 4 | 24 | 870 | 1323 |
| 753 | Ichnology | 4 | 24 | 40 | 148 |
| 753 | Computational Chemistry | 2 | 24 | 813 | 1044 |
| 753 | Bioenergetics | 1 | 24 | 1216 | 1352 |
| 753 | International Relations | 16 | 24 | 380 | 1078 |
| 753 | Nondestructive testing | 2 | 24 | 822 | 976 |
| 753 | Public Policy | 5 | 24 | 1252 | 2457 |
| 753 | Social Psychology | 4 | 24 | 1834 | 2814 |
| 753 | Telecommunications | 3 | 24 | 810 | 1127 |
| 753 | Photonics | 2 | 24 | 1886 | 2259 |
| 753 | Trace fossils | 4 | 24 | 40 | 148 |
| 753 | Energy metabolism | 1 | 24 | 790 | 853 |
| 753 | Water quality management | 4 | 24 | 1515 | 2405 |
| 753 | Invertebrates | 5 | 24 | 417 | 969 |
| 753 | cell membrane | 1 | 24 | 754 | 840 |
| 768 | Database Management | 1 | 23 | 1123 | 1099 |
| 768 | Andrology | 3 | 23 | 537 | 878 |
| 768 | Fuzzy Logic | 1 | 23 | 141 | 181 |
| 768 | Clinical Immunology | 2 | 23 | 989 | 1329 |
| 768 | Molecular Genetics | 4 | 23 | 1337 | 2423 |
| 768 | Mental Health | 5 | 23 | 1116 | 2080 |
| 768 | Expert Systems | 1 | 23 | 531 | 414 |
| 768 | Fuzzy Sets | 1 | 23 | 141 | 181 |
| 768 | Fuzzy algorithms | 1 | 23 | 141 | 181 |
| 768 | internet | 4 | 23 | 1367 | 2197 |
| 768 | international cooperation | 3 | 23 | 573 | 1002 |
| 779 | Hypertension | 3 | 22 | 1083 | 1724 |
| 779 | Labor Economics | 4 | 22 | 420 | 738 |
| 779 | Entrepreneurship | 2 | 22 | 1250 | 1827 |
| 779 | starch | 2 | 22 | 428 | 601 |
| 779 | Imaging systems | 3 | 22 | 839 | 1063 |
| 784 | Geography | 7 | 21 | 1288 | 2593 |
| 784 | Logistics | 1 | 21 | 1001 | 1142 |
| 784 | Inventory Control | 1 | 21 | 179 | 288 |
| 784 | Geographic information systems | 4 | 21 | 965 | 1574 |
| 784 | Technological Innovations | 1 | 21 | 1754 | 1763 |
| 784 | Developmental Neurobiology | 2 | 21 | 667 | 877 |
| 784 | Wetland ecology | 2 | 21 | 573 | 827 |
| 784 | Production Management | 1 | 21 | 1724 | 1950 |
| 784 | Ubiquitous computing | 4 | 21 | 193 | 384 |
| 784 | optical pattern recognition | 2 | 21 | 181 | 196 |
| 784 | Combinatorial analysis | 4 | 21 | 902 | 1049 |
| 784 | Statistical models | 1 | 21 | 202 | 190 |
| 784 | prostaglandins | 1 | 21 | 624 | 706 |
| 784 | United Kingdom | 2 | 21 | 1492 | 1893 |
| 798 | Embryology | 3 | 20 | 1186 | 1855 |
| 798 | Health Policy | 3 | 20 | 1806 | 2562 |
| 798 | Adsorption | 2 | 20 | 278 | 461 |
| 798 | Enteral nutrition | 1 | 20 | 1067 | 1276 |
| 798 | Parenteral nutrition | 1 | 20 | 1208 | 1382 |
| 798 | Entropy | 1 | 20 | 1891 | 1715 |
| 798 | Business Ethics | 1 | 20 | 1552 | 1815 |
| 798 | Wetland conservation | 1 | 20 | 616 | 658 |
| 798 | X-rays | 2 | 20 | 648 | 728 |
| 798 | Attention | 5 | 20 | 1045 | 1920 |
| 798 | Wetlands | 1 | 20 | 626 | 659 |
| 809 | Geometry | 2 | 19 | 1358 | 1246 |
| 809 | Stratigraphic Correlation | 3 | 19 | 14 | 37 |
| 809 | digital preservation | 2 | 19 | 92 | 201 |
| 809 | Immunotoxicology | 2 | 19 | 390 | 612 |
| 809 | Biofilms | 1 | 19 | 335 | 496 |
| 809 | Light | 2 | 19 | 995 | 1460 |
| 809 | Glass | 1 | 19 | 1451 | 1537 |
| 809 | pottery | 1 | 19 | 1378 | 1489 |
| 809 | biological agents | 2 | 19 | 899 | 695 |
| 818 | Robotics | 1 | 18 | 2293 | 2269 |
| 818 | Altitude Sickness | 1 | 18 | 259 | 280 |
| 818 | Molecular recognition | 1 | 18 | 450 | 515 |
| 818 | Business Intelligence | 1 | 18 | 77 | 29 |
| 818 | Altitude | 1 | 18 | 259 | 280 |
| 818 | Electroconvulsive therapy | 1 | 18 | 184 | 212 |
| 824 | Information Theory | 4 | 17 | 1168 | 1788 |
| 824 | Archaeology | 2 | 17 | 1397 | 1552 |
| 824 | Systems Analysis | 5 | 17 | 875 | 1854 |
| 824 | Human Rights | 1 | 17 | 985 | 911 |
| 824 | economic indicators | 2 | 17 | 129 | 217 |
| 824 | Social Entrepreneurship | 1 | 17 | 310 | 481 |
| 824 | Water quality | 2 | 17 | 304 | 639 |
| 824 | Southeast Asia | 10 | 17 | 108 | 614 |
| 824 | heredity | 5 | 17 | 459 | 1054 |
| 824 | Water chemistry | 2 | 17 | 474 | 818 |
| 834 | Sleep Disorders | 2 | 16 | 1442 | 1800 |
| 834 | stem cell transplantation | 1 | 16 | 104 | 95 |
| 834 | Biomechanics | 3 | 16 | 1218 | 2001 |
| 834 | Paleobiogeography | 1 | 16 | 150 | 160 |
| 834 | Earthquakes | 1 | 16 | 583 | 613 |
| 834 | viruses | 3 | 16 | 1090 | 1907 |
| 834 | organization | 1 | 16 | 1277 | 1479 |
| 834 | Sleep | 2 | 16 | 1474 | 1832 |
| 842 | Clinical Laboratory Science | 1 | 15 | 410 | 435 |
| 842 | Particle Physics | 2 | 15 | 271 | 416 |
| 842 | Marine Geophysics | 1 | 15 | 491 | 538 |
| 842 | micromechanics | 1 | 15 | 946 | 1054 |
| 842 | Cell adhesion | 1 | 15 | 311 | 447 |
| 842 | chronic fatigue syndrome | 1 | 15 | 107 | 100 |
| 842 | sleep-wake cycle | 1 | 15 | 269 | 239 |
| 849 | Sedimentology | 2 | 14 | 723 | 1164 |
| 849 | Emergency Medicine | 2 | 14 | 1266 | 1571 |
| 849 | Rheology | 1 | 14 | 888 | 1015 |
| 849 | Food texture | 1 | 14 | 322 | 439 |
| 849 | Zeolites | 1 | 14 | 1385 | 1742 |
| 849 | Nutrigenomics | 1 | 14 | 220 | 366 |
| 849 | libraries | 6 | 14 | 336 | 807 |
| 849 | Export Marketing | 1 | 14 | 448 | 634 |
| 857 | Adolescent Medicine | 1 | 13 | 829 | 1033 |
| 857 | Environmental Education | 1 | 13 | 672 | 804 |
| 857 | nuclear magnetic resonance | 2 | 13 | 1029 | 1264 |
| 857 | urban health | 1 | 13 | 429 | 594 |
| 857 | Sequential Analysis | 2 | 13 | 113 | 136 |
| 857 | Visual Perception | 3 | 13 | 1239 | 1947 |
| 857 | mutagens | 2 | 13 | 748 | 1277 |
| 857 | Electromagnetic fields | 5 | 13 | 251 | 556 |
| 857 | disease outbreaks | 1 | 13 | 700 | 947 |
| 857 | administrative agencies | 12 | 13 | 96 | 549 |
| 857 | Epidemics | 1 | 13 | 672 | 931 |
| 857 | Memory | 3 | 13 | 1354 | 2218 |
| 857 | herbicides | 1 | 13 | 404 | 529 |
| 857 | Perception | 3 | 13 | 1400 | 2158 |
| 857 | data protection | 2 | 13 | 787 | 1147 |
| 872 | ethnicity | 1 | 12 | 1182 | 1108 |
| 872 | Ethnic relations | 1 | 12 | 1045 | 987 |
| 872 | Heat Exchangers | 1 | 12 | 1759 | 2165 |
| 872 | Multivariate Analysis | 2 | 12 | 682 | 975 |
| 872 | Business | 2 | 12 | 2477 | 3382 |
| 872 | Developmental Immunology | 1 | 12 | 917 | 1167 |
| 872 | Vietnam | 1 | 12 | 265 | 366 |
| 872 | Synapses | 1 | 12 | 418 | 603 |
| 872 | bees | 2 | 12 | 479 | 775 |
| 881 | Palynology | 1 | 11 | 425 | 493 |
| 881 | Animal Science | 6 | 11 | 31 | 43 |
| 881 | Sports Medicine | 2 | 11 | 2502 | 2965 |
| 881 | blood transfusion | 4 | 11 | 423 | 869 |
| 881 | Neuromuscular diseases | 1 | 11 | 797 | 994 |
| 881 | peace | 2 | 11 | 580 | 854 |
| 881 | water supply | 2 | 11 | 977 | 1624 |
| 881 | Japan | 4 | 11 | 1502 | 2704 |
| 881 | Muscles | 1 | 11 | 1060 | 1322 |
| 890 | Tissue Engineering | 1 | 10 | 611 | 807 |
| 890 | Plate Tectonics | 1 | 10 | 477 | 606 |
| 890 | Biotransformation | 2 | 10 | 160 | 393 |
| 890 | Biodiversity conservation | 1 | 10 | 1950 | 2421 |
| 890 | Histocompatibility Testing | 2 | 10 | 539 | 886 |
| 890 | Mental Health Services | 1 | 10 | 1573 | 1907 |
| 890 | Magnetic Resonance Spectroscopy | 1 | 10 | 1444 | 1576 |
| 890 | information warfare | 1 | 10 | 135 | 76 |
| 890 | body temperature | 1 | 10 | 990 | 1285 |
| 890 | Soviet Union | 1 | 10 | 1262 | 1135 |
| 890 | World Wide Web | 3 | 10 | 402 | 862 |
| 890 | investigative techniques | 1 | 10 | 302 | 551 |
| 902 | Health Services Administration | 1 | 9 | 1551 | 1946 |
| 902 | health services accessibility | 2 | 9 | 1048 | 1720 |
| 902 | Melanoma | 1 | 9 | 331 | 518 |
| 902 | Ichthyology | 1 | 9 | 776 | 846 |
| 902 | radiative transfer | 2 | 9 | 717 | 1041 |
| 902 | Synchrotron Radiation | 1 | 9 | 603 | 711 |
| 902 | preimplantation genetic diagnosis | 1 | 9 | 656 | 915 |
| 902 | embryo transfer | 1 | 9 | 670 | 933 |
| 902 | Portfolio Management | 11 | 9 | 84 | 503 |
| 902 | Biometrics | 3 | 9 | 904 | 1532 |
| 902 | irrigation | 1 | 9 | 586 | 751 |
| 902 | herbs | 2 | 9 | 82 | 246 |
| 902 | Fish | 1 | 9 | 613 | 721 |
| 915 | Cytogenetics | 2 | 8 | 1299 | 2047 |
| 915 | Organizational learning | 1 | 8 | 991 | 1306 |
| 915 | Sikhism | 5 | 8 | 12 | 48 |
| 915 | Gene expression | 2 | 8 | 320 | 645 |
| 915 | Ecosystem management | 1 | 8 | 1083 | 1401 |
| 915 | Water Purification | 1 | 8 | 1715 | 2109 |
| 915 | Child welfare | 3 | 8 | 1045 | 1971 |
| 915 | Knowledge management | 1 | 8 | 1029 | 1303 |
| 915 | Social policy | 1 | 8 | 1610 | 1923 |
| 915 | Aquatic ecosystems | 1 | 8 | 328 | 448 |
| 915 | Pacific Islands | 5 | 8 | 176 | 748 |
| 915 | Nanotubes | 1 | 8 | 422 | 563 |
| 915 | Spine | 1 | 8 | 812 | 1070 |
| 915 | Structure-activity relationship | 2 | 8 | 308 | 702 |
| 915 | planning | 1 | 8 | 1324 | 1719 |
| 915 | Economic planning | 1 | 8 | 936 | 1298 |
| 915 | Aquatic ecology | 1 | 8 | 1356 | 1643 |
| 915 | Oxidation-reduction | 1 | 8 | 1065 | 1512 |
| 933 | Mathematics Education | 3 | 7 | 509 | 925 |
| 933 | Nuclear Medicine | 3 | 7 | 769 | 1279 |
| 933 | Chemotherapy | 1 | 7 | 1376 | 1765 |
| 933 | Critical Care | 3 | 7 | 1063 | 1831 |
| 933 | Critical Care Medicine | 3 | 7 | 1019 | 1755 |
| 933 | Critical thinking | 2 | 7 | 37 | 57 |
| 933 | Combinatorial optimization | 1 | 7 | 956 | 1050 |
| 933 | infrared radiation | 1 | 7 | 1004 | 1234 |
| 933 | diffusion | 2 | 7 | 428 | 426 |
| 933 | Diagnostic Imaging | 2 | 7 | 1847 | 2612 |
| 933 | Molecular Imaging | 2 | 7 | 569 | 951 |
| 933 | Sensor Networks | 1 | 7 | 529 | 657 |
| 933 | Coding Theory | 1 | 7 | 657 | 698 |
| 933 | Protozoa | 1 | 7 | 682 | 928 |
| 933 | Physical fitness | 1 | 7 | 1493 | 1870 |
| 933 | Child health | 2 | 7 | 9 | 15 |
| 933 | Androgens | 1 | 7 | 358 | 550 |
| 933 | Nonlinear mechanics | 1 | 7 | 801 | 1024 |
| 951 | Nuclear Engineering | 4 | 6 | 1200 | 2147 |
| 951 | Applied Mathematics | 6 | 6 | 78 | 408 |
| 951 | Databases | 1 | 6 | 579 | 772 |
| 951 | Cognitive Therapy | 1 | 6 | 985 | 1351 |
| 951 | isomerism | 1 | 6 | 627 | 915 |
| 951 | Courts | 1 | 6 | 21 | 22 |
| 951 | Ecological disturbances | 1 | 6 | 75 | 206 |
| 951 | Chirality | 1 | 6 | 627 | 915 |
| 951 | Environmental disasters | 1 | 6 | 75 | 206 |
| 951 | wildlife diseases | 2 | 6 | 213 | 483 |
| 951 | Solar System | 1 | 6 | 977 | 1214 |
| 962 | Mechatronics | 1 | 5 | 1413 | 1846 |
| 962 | Software Maintenance | 1 | 5 | 401 | 560 |
| 962 | Pediatric Hematology | 1 | 5 | 536 | 677 |
| 962 | Forensic Psychology | 1 | 5 | 631 | 844 |
| 962 | International Law | 2 | 5 | 491 | 493 |
| 962 | Forensic Psychiatry | 1 | 5 | 801 | 1041 |
| 962 | Computational Intelligence | 1 | 5 | 1228 | 1647 |
| 962 | Fracture mechanics | 1 | 5 | 1790 | 2243 |
| 962 | Sexual health | 5 | 5 | 484 | 1227 |
| 962 | Non-timber forest products | 1 | 5 | 59 | 20 |
| 962 | land tenure | 1 | 5 | 150 | 297 |
| 962 | Land reform | 1 | 5 | 152 | 300 |
| 962 | psychosexual development | 5 | 5 | 4 | 35 |
| 962 | drug abuse | 2 | 5 | 722 | 1338 |
| 976 | Rheumatology | 1 | 4 | 1268 | 1623 |
| 976 | Engineering Physics | 1 | 4 | 193 | 209 |
| 976 | Kinesiology | 1 | 4 | 335 | 582 |
| 976 | Wildlife conservation | 1 | 4 | 1461 | 2008 |
| 976 | Accreditation | 1 | 4 | 141 | 249 |
| 976 | Genetic variation | 1 | 4 | 250 | 511 |
| 976 | Asymmetric synthesis | 2 | 4 | 135 | 502 |
| 976 | Brachytherapy | 1 | 4 | 288 | 390 |
| 976 | Developmental Disabilities | 1 | 4 | 1346 | 1896 |
| 976 | Wind power | 1 | 4 | 527 | 784 |
| 976 | disabilities | 1 | 4 | 1072 | 1552 |
| 976 | human development | 1 | 4 | 1228 | 1790 |
| 976 | Cheminformatics | 1 | 4 | 571 | 932 |
| 976 | Mountains | 2 | 4 | 531 | 1073 |
| 976 | winds | 1 | 4 | 232 | 376 |
| 976 | rehabilitation | 1 | 4 | 2717 | 3498 |
| 976 | Navigation | 1 | 4 | 528 | 690 |
| 976 | diseases | 1 | 4 | 535 | 835 |
| 976 | Phylogeny | 1 | 4 | 1263 | 1814 |
| 995 | Humanities | 2 | 3 | 2382 | 3704 |
| 995 | Econometrics | 1 | 3 | 1938 | 2338 |
| 995 | Pediatric Neurology | 2 | 3 | 814 | 1415 |
| 995 | Immunohematology | 2 | 3 | 77 | 195 |
| 995 | Mass Spectrometry | 5 | 3 | 845 | 1994 |
| 995 | Electromagnetic waves | 1 | 3 | 586 | 881 |