| 1 | Medicine | 548 | 67.2K | 691 | 276 |
| 2 | Neurology | 567 | 63.8K | 341 | 172 |
| 3 | Science | 217 | 31.6K | 1466 | 889 |
| 4 | Biology | 337 | 29.6K | 980 | 903 |
| 5 | Molecular Biology | 288 | 25.9K | 914 | 591 |
| 6 | Biochemistry | 382 | 23.1K | 1028 | 721 |
| 7 | Surgery | 65 | 22.5K | 422 | 86 |
| 8 | Liver diseases | 157 | 21.7K | 93 | 53 |
| 9 | Physics | 91 | 21.3K | 2717 | 1279 |
| 10 | Human genetics | 65 | 19.7K | 541 | 374 |
| 11 | Hematology | 377 | 18.8K | 334 | 191 |
| 12 | Natural history | 18 | 15.9K | 2157 | 847 |
| 13 | Nervous system | 72 | 14.8K | 420 | 113 |
| 14 | Cell Biology | 100 | 14.8K | 814 | 534 |
| 15 | Medical genetics | 149 | 14.5K | 379 | 230 |
| 16 | Cytology | 108 | 14.5K | 862 | 551 |
| 17 | Pediatric Neurology | 47 | 13.9K | 199 | 58 |
| 18 | Cancer | 214 | 12.9K | 396 | 325 |
| 19 | Endocrinology | 168 | 11.9K | 353 | 298 |
| 20 | Research | 234 | 11.9K | 1076 | 769 |
| 21 | medical education | 164 | 11.5K | 127 | 28 |
| 22 | Metabolic diseases | 153 | 10.8K | 241 | 233 |
| 23 | Virology | 67 | 10.6K | 756 | 523 |
| 24 | Metabolism | 143 | 10.5K | 358 | 284 |
| 25 | Cardiovascular system | 102 | 9.9K | 213 | 174 |
| 26 | transport vesicles | 2 | 9.3K | 373 | 197 |
| 27 | Immunology | 179 | 9.2K | 535 | 561 |
| 28 | Hypertension | 104 | 8.8K | 209 | 174 |
| 29 | Genetics | 68 | 8.2K | 926 | 574 |
| 30 | Microbiology | 107 | 7.1K | 1431 | 1147 |
| 31 | Biophysics | 193 | 7.1K | 801 | 694 |
| 31 | Physiology | 91 | 7.1K | 869 | 486 |
| 33 | Chemistry | 62 | 6.4K | 3311 | 1934 |
| 34 | Nutrition | 101 | 5.9K | 701 | 485 |
| 35 | Transplantation | 68 | 5.8K | 205 | 129 |
| 36 | Pharmacology | 85 | 5.7K | 1317 | 782 |
| 37 | Diabetes mellitus | 57 | 5.6K | 486 | 348 |
| 38 | Diabetes | 56 | 5.6K | 533 | 365 |
| 39 | arthritis | 85 | 5.6K | 167 | 147 |
| 40 | Psychiatry | 72 | 5.5K | 1088 | 715 |
| 41 | Neurobiology | 59 | 5.1K | 362 | 279 |
| 42 | Neurophysiology | 58 | 5.0K | 816 | 580 |
| 43 | Sleep | 88 | 4.9K | 215 | 132 |
| 44 | Sleep Disorders | 88 | 4.9K | 210 | 119 |
| 44 | rehabilitation | 91 | 4.9K | 226 | 148 |
| 46 | Physical Therapy | 88 | 4.8K | 129 | 110 |
| 47 | Pharmaceutical Chemistry | 65 | 4.7K | 955 | 535 |
| 48 | Rheumatology | 65 | 4.7K | 160 | 114 |
| 49 | Oncogenes | 37 | 4.7K | 329 | 194 |
| 50 | Pathology | 60 | 4.2K | 554 | 380 |
| 51 | Biocompatible Materials | 42 | 4.0K | 1254 | 793 |
| 52 | Clinical Chemistry | 58 | 4.0K | 686 | 379 |
| 53 | Radiography | 17 | 3.5K | 275 | 46 |
| 54 | Obesity | 26 | 3.4K | 799 | 329 |
| 55 | Immunity | 33 | 3.3K | 694 | 696 |
| 56 | nucleic acids | 30 | 3.2K | 611 | 517 |
| 57 | viruses | 50 | 3.2K | 373 | 348 |
| 58 | drug therapy | 59 | 3.2K | 537 | 337 |
| 59 | Cytogenetics | 21 | 3.2K | 643 | 348 |
| 60 | Neurons | 10 | 3.2K | 444 | 342 |
| 61 | Radiology | 33 | 3.1K | 455 | 68 |
| 62 | Diagnostic microbiology | 30 | 3.1K | 383 | 279 |
| 63 | Leukemia | 36 | 3.1K | 399 | 245 |
| 64 | Alzheimer's disease | 80 | 3.0K | 262 | 156 |
| 65 | Medical Physics | 69 | 2.9K | 316 | 219 |
| 66 | Public Health | 65 | 2.9K | 1381 | 1105 |
| 67 | Pediatrics | 67 | 2.9K | 547 | 580 |
| 68 | Epidemiology | 67 | 2.8K | 831 | 701 |
| 69 | diseases | 5 | 2.8K | 246 | 172 |
| 69 | Disease | 5 | 2.8K | 253 | 167 |
| 71 | Medical Oncology | 69 | 2.7K | 470 | 366 |
| 72 | Psychophysiology | 19 | 2.7K | 1506 | 708 |
| 73 | Digestive system diseases | 60 | 2.6K | 109 | 47 |
| 74 | Mental Disorders | 29 | 2.6K | 1212 | 745 |
| 75 | Psychopharmacology | 17 | 2.6K | 890 | 368 |
| 76 | Dermatology | 74 | 2.6K | 302 | 266 |
| 77 | Ophthalmology | 49 | 2.5K | 423 | 307 |
| 78 | Dementia | 69 | 2.5K | 279 | 153 |
| 79 | Urology | 63 | 2.4K | 433 | 402 |
| 80 | Orthopedics | 34 | 2.4K | 507 | 236 |
| 81 | Therapeutics | 46 | 2.3K | 397 | 351 |
| 82 | Critical Care Medicine | 38 | 2.3K | 459 | 508 |
| 83 | Critical Care | 40 | 2.3K | 448 | 511 |
| 84 | Radiobiology | 53 | 2.3K | 504 | 299 |
| 85 | Nanotechnology | 19 | 2.2K | 2683 | 1518 |
| 86 | Aging | 36 | 2.1K | 940 | 575 |
| 87 | Medical Microbiology | 36 | 2.1K | 758 | 709 |
| 88 | Immunotherapy | 24 | 2.0K | 666 | 493 |
| 89 | Clinical Biochemistry | 50 | 2.0K | 193 | 122 |
| 90 | Biotechnology | 22 | 2.0K | 3126 | 2015 |
| 91 | Parenteral nutrition | 22 | 2.0K | 379 | 222 |
| 92 | Education | 35 | 2.0K | 1247 | 518 |
| 93 | Nephrology | 28 | 2.0K | 147 | 99 |
| 93 | Kidney diseases | 28 | 2.0K | 240 | 127 |
| 95 | Emergency Medicine | 66 | 2.0K | 246 | 171 |
| 96 | Developmental Biology | 21 | 2.0K | 954 | 722 |
| 97 | Enteral nutrition | 17 | 1.9K | 335 | 183 |
| 98 | Computational Biology | 19 | 1.8K | 1285 | 699 |
| 99 | Homeostasis | 6 | 1.8K | 383 | 307 |
| 99 | Cell metabolism | 6 | 1.8K | 545 | 313 |
| 101 | cell physiology | 29 | 1.8K | 474 | 461 |
| 102 | Anatomy | 45 | 1.8K | 481 | 521 |
| 103 | Biomedical Engineering | 44 | 1.7K | 1454 | 1248 |
| 104 | Bioengineering | 21 | 1.7K | 2081 | 1603 |
| 105 | Allergy | 14 | 1.7K | 735 | 569 |
| 106 | Genomics | 35 | 1.7K | 1077 | 875 |
| 107 | Electrophysiology | 35 | 1.6K | 242 | 101 |
| 108 | Cell differentiation | 25 | 1.6K | 735 | 752 |
| 109 | Health | 27 | 1.6K | 756 | 435 |
| 110 | Neuromuscular diseases | 26 | 1.6K | 166 | 91 |
| 110 | Muscles | 26 | 1.6K | 220 | 151 |
| 112 | Medical innovations | 25 | 1.6K | 233 | 390 |
| 113 | Toxicology | 17 | 1.5K | 2749 | 1512 |
| 114 | Ultrasonics | 38 | 1.4K | 125 | 125 |
| 114 | Ultrasound | 37 | 1.4K | 57 | 42 |
| 116 | Respiration | 26 | 1.4K | 528 | 397 |
| 117 | Neurochemistry | 26 | 1.4K | 1022 | 839 |
| 118 | Immune system | 13 | 1.4K | 552 | 602 |
| 119 | Bioinformatics | 13 | 1.4K | 1161 | 672 |
| 120 | United States | 48 | 1.3K | 1457 | 1331 |
| 121 | Genetic therapy | 37 | 1.3K | 272 | 337 |
| 122 | Polymers | 14 | 1.3K | 2891 | 1485 |
| 123 | Genetic regulation | 14 | 1.3K | 562 | 430 |
| 124 | Environment | 20 | 1.3K | 2519 | 2491 |
| 125 | Chemotherapy | 24 | 1.2K | 515 | 299 |
| 126 | Stem cells | 25 | 1.2K | 623 | 524 |
| 127 | Oncology | 23 | 1.2K | 917 | 1379 |
| 128 | Embryology | 9 | 1.2K | 1197 | 685 |
| 129 | Health Policy | 25 | 1.2K | 830 | 570 |
| 130 | Histology | 9 | 1.2K | 1358 | 549 |
| 130 | Materials | 8 | 1.2K | 4814 | 2395 |
| 132 | Lung Transplantation | 28 | 1.1K | 257 | 156 |
| 132 | Heart transplantation | 28 | 1.1K | 257 | 156 |
| 134 | gene therapy | 30 | 1.1K | 270 | 360 |
| 135 | Mental illness | 17 | 1.1K | 1067 | 887 |
| 136 | Orthopedic Surgery | 15 | 1.1K | 362 | 158 |
| 137 | drug development | 23 | 1.1K | 247 | 483 |
| 138 | Cardiovascular diseases | 29 | 1.1K | 543 | 434 |
| 139 | Smoking | 30 | 1.1K | 216 | 206 |
| 140 | gene mapping | 12 | 1.1K | 1218 | 807 |
| 141 | infection | 17 | 1.1K | 795 | 592 |
| 142 | Genetic engineering | 10 | 1.0K | 1454 | 773 |
| 143 | Diagnostic Imaging | 18 | 1.0K | 915 | 634 |
| 144 | Diet | 10 | 1.0K | 1503 | 883 |
| 145 | enzymes | 8 | 1.0K | 1089 | 415 |
| 146 | Neuropsychiatry | 9 | 976 | 605 | 227 |
| 147 | Sound | 20 | 974 | 201 | 46 |
| 147 | Bones | 24 | 974 | 298 | 302 |
| 149 | Ferroelectricity | 17 | 968 | 342 | 70 |
| 149 | Radio | 17 | 968 | 291 | 85 |
| 149 | Radio frequency | 17 | 968 | 56 | 28 |
| 152 | Hemodynamics | 28 | 951 | 158 | 267 |
| 153 | Pharmacogenetics | 22 | 949 | 324 | 344 |
| 154 | Growth | 5 | 942 | 1174 | 686 |
| 155 | Infections | 12 | 934 | 668 | 517 |
| 156 | Materials Science | 4 | 910 | 5018 | 2042 |
| 157 | health services | 15 | 900 | 449 | 212 |
| 158 | Obstetrics | 96 | 888 | 415 | 918 |
| 159 | locomotion | 9 | 878 | 422 | 137 |
| 159 | posture | 9 | 878 | 422 | 137 |
| 159 | gait | 9 | 878 | 422 | 137 |
| 159 | walking | 9 | 878 | 422 | 137 |
| 163 | Medical Technology | 14 | 852 | 819 | 386 |
| 164 | Sexual health | 11 | 850 | 415 | 147 |
| 165 | Signal Transduction | 11 | 841 | 833 | 633 |
| 166 | Bone diseases | 13 | 818 | 153 | 214 |
| 167 | Bacteriology | 10 | 815 | 1338 | 989 |
| 168 | Geriatrics | 23 | 803 | 1327 | 1089 |
| 169 | Neurosurgery | 20 | 794 | 490 | 404 |
| 170 | Heart Failure | 15 | 769 | 164 | 163 |
| 171 | vascular diseases | 13 | 768 | 353 | 324 |
| 172 | pain | 20 | 766 | 586 | 637 |
| 173 | Gene expression regulation | 10 | 765 | 598 | 450 |
| 174 | genome | 12 | 761 | 914 | 996 |
| 175 | Autoimmunity | 22 | 739 | 210 | 329 |
| 176 | Developmental Genetics | 5 | 734 | 547 | 419 |
| 176 | viral genetics | 5 | 734 | 313 | 323 |
| 178 | Virulence | 11 | 728 | 706 | 785 |
| 179 | proteins | 13 | 723 | 1278 | 863 |
| 180 | Chronic diseases | 14 | 719 | 346 | 424 |
| 181 | Thrombosis | 11 | 718 | 733 | 483 |
| 182 | Molecular structure | 7 | 717 | 2026 | 959 |
| 183 | cardiac catheterization | 28 | 715 | 238 | 196 |
| 184 | Pancreatic diseases | 58 | 712 | 52 | 67 |
| 185 | Cardiac electrophysiology | 10 | 708 | 114 | 60 |
| 185 | arrhythmia | 10 | 708 | 114 | 60 |
| 187 | Cell death | 15 | 705 | 614 | 729 |
| 188 | drugs | 13 | 703 | 1251 | 767 |
| 189 | Biomechanics | 23 | 697 | 449 | 538 |
| 190 | Attention | 13 | 685 | 1092 | 775 |
| 191 | Parasitic Diseases | 6 | 678 | 1926 | 922 |
| 192 | Brain | 22 | 677 | 1311 | 1436 |
| 193 | Sports Medicine | 37 | 674 | 779 | 914 |
| 194 | Visual Perception | 12 | 673 | 1095 | 760 |
| 194 | Memory | 12 | 673 | 1222 | 878 |
| 194 | Perception | 12 | 673 | 1248 | 862 |
| 197 | Oxidation-reduction | 7 | 668 | 599 | 483 |
| 198 | Child Development | 8 | 664 | 1491 | 887 |
| 199 | miniaturization | 2 | 658 | 2662 | 1028 |
| 200 | Thorax | 17 | 652 | 172 | 191 |
| 200 | Vaccines | 12 | 652 | 1126 | 814 |
| 202 | Health Services Research | 9 | 632 | 1198 | 587 |
| 203 | Health Services Administration | 8 | 630 | 725 | 323 |
| 204 | Child psychology | 6 | 622 | 1273 | 790 |
| 205 | Bioorganic chemistry | 11 | 612 | 1894 | 1397 |
| 206 | Autoimmune diseases | 19 | 607 | 177 | 230 |
| 207 | Host-parasite interactions | 8 | 603 | 944 | 976 |
| 208 | Biochemical Engineering | 5 | 599 | 3163 | 2404 |
| 209 | Hormones | 7 | 595 | 1109 | 663 |
| 209 | Behavior | 18 | 595 | 1583 | 1894 |
| 211 | Microelectronics | 1 | 592 | 3117 | 951 |
| 212 | blood transfusion | 14 | 579 | 392 | 252 |
| 213 | Antioxidants | 5 | 578 | 684 | 455 |
| 214 | biochemical markers | 6 | 577 | 632 | 113 |
| 215 | United Kingdom | 9 | 564 | 1141 | 877 |
| 216 | Diagnosis | 7 | 557 | 393 | 83 |
| 217 | Health Education | 11 | 556 | 1156 | 678 |
| 218 | Laser therapy | 33 | 554 | 37 | 35 |
| 218 | Autoantibodies | 17 | 554 | 173 | 227 |
| 220 | child behavior | 4 | 551 | 386 | 160 |
| 221 | cloning | 7 | 542 | 514 | 481 |
| 222 | disease susceptibility | 4 | 537 | 327 | 39 |
| 222 | symptoms | 4 | 537 | 327 | 39 |
| 224 | nanoscience | 7 | 533 | 2375 | 1716 |
| 225 | biological factors | 13 | 530 | 986 | 777 |
| 226 | Genetic disorders | 8 | 522 | 364 | 226 |
| 226 | scientific societies | 8 | 522 | 522 | 284 |
| 228 | Neuropsychology | 14 | 513 | 1332 | 1223 |
| 229 | Histochemistry | 5 | 511 | 1020 | 385 |
| 230 | Radiotherapy | 25 | 509 | 91 | 68 |
| 231 | Computer Vision | 4 | 500 | 1181 | 628 |
| 231 | Image Processing | 4 | 500 | 2051 | 904 |
| 233 | Proteome | 8 | 498 | 873 | 715 |
| 234 | Substance Abuse | 15 | 496 | 732 | 640 |
| 234 | animals | 1 | 496 | 2555 | 338 |
| 236 | Chromosome mapping | 6 | 494 | 1650 | 1121 |
| 237 | DNA polymerases | 3 | 493 | 558 | 478 |
| 238 | Genetic epidemiology | 13 | 491 | 122 | 108 |
| 238 | heredity | 13 | 491 | 261 | 192 |
| 240 | alcoholism | 15 | 480 | 755 | 785 |
| 241 | Psychology | 12 | 477 | 3322 | 2599 |
| 241 | Ultrasonic Imaging | 21 | 477 | 100 | 123 |
| 241 | health planning | 4 | 477 | 2355 | 712 |
| 244 | drug addiction | 14 | 471 | 590 | 652 |
| 245 | Neurotoxicology | 3 | 449 | 715 | 214 |
| 245 | Immunopathology | 16 | 449 | 707 | 820 |
| 247 | Adolescent Medicine | 6 | 441 | 513 | 564 |
| 248 | Health promotion | 14 | 434 | 736 | 737 |
| 249 | Gerontology | 12 | 432 | 1163 | 822 |
| 250 | Clinical Immunology | 18 | 426 | 573 | 698 |
| 251 | Child | 18 | 420 | 1253 | 1251 |
| 252 | Inflammation | 7 | 395 | 963 | 760 |
| 253 | histological techniques | 4 | 373 | 768 | 492 |
| 254 | Women's health | 17 | 368 | 487 | 564 |
| 255 | Hospitals | 13 | 361 | 319 | 289 |
| 256 | Membranes | 11 | 350 | 1131 | 1338 |
| 257 | Europe | 9 | 349 | 2392 | 1635 |
| 258 | Psychoneuroimmunology | 2 | 343 | 1064 | 499 |
| 258 | Neuroimmunology | 2 | 343 | 1164 | 547 |
| 260 | Long-Term Care | 3 | 339 | 693 | 378 |
| 260 | Long-term care facilities | 3 | 339 | 686 | 378 |
| 262 | Industrial Microbiology | 2 | 330 | 2844 | 1402 |
| 263 | Telemedicine | 14 | 329 | 90 | 142 |
| 263 | Brain damage | 10 | 329 | 185 | 206 |
| 265 | counseling | 6 | 320 | 1147 | 683 |
| 266 | Patient education | 5 | 317 | 568 | 419 |
| 267 | Clinical Pharmacology | 7 | 313 | 1249 | 913 |
| 268 | carcinogens | 9 | 306 | 636 | 771 |
| 269 | Organic Chemistry | 9 | 300 | 2460 | 2138 |
| 270 | DNA repair | 1 | 297 | 674 | 182 |
| 271 | Randomized Controlled Trials | 6 | 296 | 1044 | 472 |
| 272 | preventive medicine | 13 | 293 | 717 | 1005 |
| 273 | Pharmacy | 8 | 283 | 1638 | 1446 |
| 273 | Molecular Pharmacology | 7 | 283 | 573 | 642 |
| 275 | Palliative Care | 11 | 282 | 479 | 441 |
| 275 | Spine | 7 | 282 | 578 | 591 |
| 277 | Quality of life | 9 | 281 | 945 | 1052 |
| 278 | Adolescent | 10 | 272 | 1462 | 1366 |
| 278 | Electroconvulsive therapy | 5 | 272 | 73 | 19 |
| 280 | biomedicine | 3 | 268 | 1142 | 410 |
| 281 | Environmental Health | 12 | 265 | 3643 | 4599 |
| 281 | Statistical physics | 5 | 265 | 3426 | 2305 |
| 283 | Composite Materials | 1 | 264 | 4315 | 2098 |
| 284 | protein | 6 | 262 | 1123 | 920 |
| 285 | Infertility | 15 | 261 | 634 | 953 |
| 285 | fertility | 15 | 261 | 663 | 1009 |
| 287 | hospice care | 8 | 260 | 343 | 197 |
| 288 | Cost control | 12 | 257 | 49 | 39 |
| 289 | Extracellular matrix | 1 | 255 | 595 | 263 |
| 289 | collagen | 1 | 255 | 620 | 272 |
| 291 | General Surgery | 12 | 244 | 415 | 401 |
| 292 | Nuclear Medicine | 5 | 235 | 1109 | 824 |
| 292 | Molecular Imaging | 5 | 235 | 704 | 655 |
| 294 | Mass Spectrometry | 9 | 228 | 832 | 880 |
| 295 | Artificial Organs | 17 | 227 | 261 | 347 |
| 296 | Personality Disorders | 1 | 221 | 576 | 221 |
| 297 | software | 5 | 215 | 827 | 709 |
| 298 | Tropical Medicine | 13 | 214 | 1008 | 1193 |
| 299 | Safety management | 9 | 213 | 226 | 181 |
| 300 | epilepsy | 9 | 208 | 656 | 728 |
| 301 | Quality Assurance | 6 | 202 | 201 | 130 |
| 301 | Nanoparticles | 2 | 202 | 2639 | 1560 |
| 303 | older people | 8 | 199 | 1218 | 870 |
| 304 | Carcinogenesis | 5 | 198 | 980 | 1024 |
| 304 | Lymphoma | 7 | 198 | 614 | 161 |
| 306 | Communication in medicine | 2 | 196 | 777 | 350 |
| 306 | Communication | 2 | 196 | 2995 | 1204 |
| 308 | Emergency Medical Services | 8 | 195 | 511 | 424 |
| 309 | Electrocardiography | 5 | 194 | 369 | 142 |
| 310 | risk factors | 4 | 192 | 799 | 617 |
| 310 | Optical materials | 2 | 192 | 3357 | 2352 |
| 310 | Reproduction | 11 | 192 | 1608 | 2009 |
| 313 | Microcirculation | 5 | 190 | 408 | 353 |
| 314 | Analytical Chemistry | 6 | 189 | 4110 | 3817 |
| 314 | Lipids | 6 | 189 | 1195 | 1398 |
| 316 | Geriatric Psychiatry | 4 | 181 | 1193 | 974 |
| 316 | primary prevention | 3 | 181 | 536 | 292 |
| 318 | Clinical Trials | 10 | 178 | 290 | 397 |
| 318 | Drug design | 11 | 178 | 948 | 1562 |
| 318 | Molecular cloning | 3 | 178 | 1880 | 1265 |
| 318 | Nanostructures | 2 | 178 | 3218 | 2007 |
| 318 | North America | 8 | 178 | 570 | 537 |
| 323 | Genetic recombination | 2 | 177 | 2243 | 1265 |
| 323 | Recombinant DNA | 2 | 177 | 2387 | 1360 |
| 325 | Otolaryngology | 9 | 175 | 401 | 487 |
| 325 | polymerization | 2 | 175 | 4999 | 3052 |
| 327 | Sports | 8 | 173 | 1528 | 1397 |
| 328 | complementary therapies | 10 | 170 | 1190 | 1527 |
| 329 | drug evaluation | 4 | 169 | 1464 | 1053 |
| 330 | mutagens | 3 | 166 | 1083 | 1031 |
| 331 | Multiple Myeloma | 5 | 165 | 756 | 186 |
| 331 | visualization | 21 | 165 | 557 | 592 |
| 333 | occupational diseases | 6 | 164 | 766 | 875 |
| 334 | Engineering | 10 | 162 | 3156 | 3076 |
| 335 | Electronics | 9 | 159 | 2652 | 2485 |
| 336 | Pediatric Dermatology | 4 | 158 | 488 | 260 |
| 337 | Alternative Medicine | 8 | 152 | 1270 | 1582 |
| 337 | tomography | 6 | 152 | 294 | 258 |
| 339 | Nonlinear Dynamics | 4 | 146 | 2230 | 1814 |
| 340 | Oxidative stress | 5 | 145 | 1038 | 1444 |
| 340 | rare diseases | 4 | 145 | 726 | 700 |
| 342 | Pharmacogenomics | 5 | 142 | 211 | 315 |
| 342 | Nanostructured Materials | 2 | 142 | 4075 | 3036 |
| 344 | Mathematics | 3 | 140 | 6904 | 4072 |
| 345 | Maternal health services | 3 | 137 | 501 | 377 |
| 345 | Child welfare | 3 | 137 | 1374 | 871 |
| 345 | human behavior | 3 | 137 | 3066 | 3166 |
| 348 | Cognitive neuroscience | 2 | 136 | 1355 | 1127 |
| 348 | Cognition | 2 | 136 | 2383 | 1697 |
| 350 | Mathematical Physics | 2 | 134 | 4031 | 2080 |
| 350 | Gastrointestinal diseases | 5 | 134 | 684 | 557 |
| 352 | Botany | 2 | 132 | 5080 | 3950 |
| 353 | Pharmaceutical Technology | 6 | 131 | 1263 | 1531 |
| 354 | Functional Genomics | 4 | 130 | 264 | 423 |
| 354 | Mental Health Services | 3 | 130 | 1668 | 1165 |
| 356 | Dynamics | 2 | 128 | 2562 | 1194 |
| 357 | Neurogenetics | 3 | 125 | 346 | 309 |
| 358 | Travel | 7 | 124 | 597 | 658 |
| 358 | Exercise | 5 | 124 | 1206 | 1085 |
| 360 | Physical fitness | 5 | 122 | 980 | 1052 |
| 361 | Food Microbiology | 3 | 121 | 1547 | 1684 |
| 361 | food technology | 3 | 121 | 3033 | 2747 |
| 361 | Research Design | 8 | 121 | 866 | 1381 |
| 361 | Food | 3 | 121 | 3879 | 3442 |
| 361 | Blood vessels | 4 | 121 | 339 | 383 |
| 366 | musculoskeletal system | 1 | 119 | 353 | 147 |
| 366 | Quantum theory | 1 | 119 | 1697 | 813 |
| 366 | Flow cytometry | 4 | 119 | 397 | 452 |
| 369 | Osteoporosis | 4 | 118 | 342 | 325 |
| 370 | calcification | 3 | 117 | 698 | 708 |
| 371 | Infection control | 7 | 115 | 476 | 744 |
| 372 | Drug delivery systems | 1 | 113 | 2888 | 1897 |
| 373 | Optics | 20 | 112 | 2531 | 3716 |
| 373 | Photography | 20 | 112 | 781 | 568 |
| 373 | Developmental Disabilities | 3 | 112 | 1222 | 1259 |
| 376 | Animal Behavior | 2 | 111 | 2740 | 2385 |
| 376 | Ethology | 2 | 111 | 2175 | 2046 |
| 378 | Ethics | 4 | 110 | 992 | 733 |
| 379 | Menopause | 1 | 109 | 738 | 293 |
| 380 | pain management | 4 | 105 | 718 | 730 |
| 381 | Metastasis | 2 | 104 | 297 | 464 |
| 381 | Medical Ethics | 5 | 104 | 1044 | 915 |
| 381 | Immunogenetics | 2 | 104 | 1183 | 863 |
| 381 | Primary health care | 7 | 104 | 1438 | 1887 |
| 385 | Lipid metabolism | 2 | 103 | 685 | 645 |
| 385 | Lipid | 2 | 103 | 685 | 646 |
| 387 | Cardiac rehabilitation | 3 | 102 | 83 | 90 |
| 388 | Familial diseases | 4 | 101 | 221 | 215 |
| 389 | Soft Condensed Matter | 2 | 100 | 1501 | 1210 |
| 390 | Schizophrenia | 1 | 99 | 2003 | 1457 |
| 390 | Astrocytes | 2 | 99 | 734 | 882 |
| 390 | anesthesia | 9 | 99 | 316 | 353 |
| 393 | Health insurance | 5 | 98 | 405 | 542 |
| 394 | Freeze-Drying | 3 | 97 | 621 | 397 |
| 394 | Hypothermia | 3 | 97 | 621 | 397 |
| 394 | Freeze Drying | 3 | 97 | 621 | 397 |
| 397 | Nutrition physiology | 3 | 96 | 947 | 988 |
| 397 | Nutritional support | 3 | 96 | 195 | 291 |
| 399 | Endocrine system | 35 | 95 | 150 | 293 |
| 400 | Ecology | 2 | 94 | 8623 | 8164 |
| 400 | Nursing | 5 | 94 | 1826 | 1653 |
| 402 | Magnetic Resonance Imaging | 6 | 93 | 467 | 623 |
| 403 | healthcare disparities | 1 | 92 | 1200 | 545 |
| 404 | Proteomics | 4 | 91 | 1247 | 1718 |
| 404 | Electrophoresis | 5 | 91 | 1605 | 1951 |
| 404 | Eating Disorders | 5 | 91 | 794 | 1083 |
| 407 | behavioral medicine | 11 | 90 | 710 | 2025 |
| 407 | cell membrane | 2 | 90 | 895 | 810 |
| 407 | free radicals | 3 | 90 | 1830 | 2199 |
| 410 | Respiratory system | 3 | 89 | 787 | 881 |
| 410 | Information Science | 2 | 89 | 3665 | 2818 |
| 412 | Hematopoietic stem cell transplantation | 3 | 88 | 577 | 748 |
| 412 | Neural circuitry | 1 | 88 | 3411 | 2348 |
| 412 | drug abuse | 3 | 88 | 828 | 733 |
| 415 | China | 1 | 87 | 5519 | 3102 |
| 416 | Fluorescence spectroscopy | 2 | 86 | 436 | 306 |
| 416 | Molecular Spectroscopy | 2 | 86 | 2529 | 1971 |
| 418 | Decision making | 5 | 85 | 1341 | 1684 |
| 419 | Colloids | 4 | 83 | 3763 | 4510 |
| 420 | Condensed Matter | 2 | 82 | 4327 | 3310 |
| 421 | Cytoskeleton | 1 | 80 | 589 | 416 |
| 422 | harm reduction | 2 | 79 | 331 | 249 |
| 423 | Molecular Genetics | 4 | 78 | 2261 | 3022 |
| 423 | Elderly | 6 | 78 | 1093 | 942 |
| 423 | Hippocampus | 1 | 78 | 648 | 558 |
| 426 | Cardiovascular Pharmacology | 2 | 77 | 471 | 405 |
| 426 | Geriatric Pharmacology | 3 | 77 | 384 | 476 |
| 428 | biopolymers | 1 | 75 | 2170 | 1538 |
| 429 | Spectrum analysis | 3 | 74 | 5080 | 5036 |
| 430 | Teratology | 1 | 72 | 661 | 506 |
| 430 | Amyloidosis | 4 | 72 | 114 | 201 |
| 430 | abnormalities | 1 | 72 | 429 | 339 |
| 433 | Adolescent Psychology | 2 | 71 | 1269 | 1116 |
| 434 | Microbial Ecology | 1 | 70 | 4203 | 3901 |
| 434 | Chromatographic analysis | 3 | 70 | 2397 | 2214 |
| 436 | health services accessibility | 2 | 67 | 1527 | 1255 |
| 436 | Steroids | 2 | 67 | 1545 | 1463 |
| 438 | Andrology | 5 | 64 | 626 | 923 |
| 438 | Systems Biology | 4 | 64 | 1803 | 2434 |
| 438 | Echocardiography | 2 | 64 | 151 | 129 |
| 438 | liver | 4 | 64 | 326 | 470 |
| 442 | Pharmacognosy | 4 | 62 | 1923 | 2817 |
| 442 | Medicinal plants | 4 | 62 | 1475 | 2275 |
| 442 | Antibacterial agents | 3 | 62 | 920 | 1303 |
| 442 | Chromatography | 2 | 62 | 2474 | 2171 |
| 442 | Societies | 2 | 62 | 251 | 134 |
| 442 | Jurisprudence | 2 | 62 | 1439 | 1078 |
| 448 | Feeding and Eating Disorders | 3 | 61 | 1020 | 1251 |
| 449 | Histocompatibility Testing | 2 | 60 | 979 | 796 |
| 449 | Bacterial infections | 3 | 60 | 1164 | 1796 |
| 451 | Multiple sclerosis | 4 | 59 | 647 | 676 |
| 452 | gene transfer | 3 | 58 | 330 | 471 |
| 452 | genetic transformation | 3 | 58 | 330 | 471 |
| 454 | Environmental Toxicology | 2 | 57 | 3572 | 4096 |
| 454 | Microscopy | 3 | 57 | 2148 | 1944 |
| 454 | amino acids | 2 | 57 | 921 | 1022 |
| 457 | Psychosomatic Medicine | 5 | 56 | 803 | 1501 |
| 457 | Bipolar Disorder | 7 | 56 | 264 | 681 |
| 459 | preimplantation genetic diagnosis | 2 | 55 | 734 | 717 |
| 459 | embryo transfer | 2 | 55 | 758 | 742 |
| 459 | Cell survival | 3 | 55 | 231 | 450 |
| 459 | RNA | 2 | 55 | 774 | 999 |
| 459 | molecular chaperones | 3 | 55 | 284 | 453 |
| 464 | Intellectual disability | 1 | 54 | 1773 | 1206 |
| 464 | Hepatitis | 1 | 54 | 22 | 4 |
| 466 | Biosensors | 1 | 53 | 2391 | 2551 |
| 466 | Bioelectronics | 1 | 53 | 2094 | 2338 |
| 468 | Plant Biotechnology | 1 | 51 | 1588 | 1271 |
| 468 | Plant genetic engineering | 1 | 51 | 1777 | 1630 |
| 470 | Audiology | 3 | 48 | 999 | 1228 |
| 471 | Veterinary Immunology | 2 | 47 | 558 | 627 |
| 471 | environmental exposure | 4 | 47 | 2105 | 3380 |
| 473 | Dentistry | 2 | 46 | 1166 | 908 |
| 473 | Chronobiology | 1 | 46 | 941 | 678 |
| 473 | Circadian rhythms | 1 | 46 | 684 | 605 |
| 473 | biological clocks | 1 | 46 | 941 | 678 |
| 473 | Reproductive health | 3 | 46 | 983 | 1363 |
| 473 | Parasitology | 1 | 46 | 4234 | 3476 |
| 473 | circadian rhythm | 1 | 46 | 941 | 678 |
| 473 | biological rhythms | 1 | 46 | 898 | 666 |
| 473 | chronic disease | 1 | 46 | 832 | 645 |
| 482 | Screening | 1 | 45 | 521 | 346 |
| 483 | Radiologic Technology | 1 | 42 | 407 | 182 |
| 483 | Occupational Health | 2 | 42 | 1850 | 1634 |
| 483 | Interventional Radiology | 1 | 42 | 407 | 182 |
| 483 | Interventional Radiography | 1 | 42 | 407 | 182 |
| 483 | Multimedia Systems | 1 | 42 | 3133 | 2039 |
| 483 | Endoscopic Surgery | 1 | 42 | 407 | 182 |
| 489 | Analytical Biochemistry | 3 | 41 | 2261 | 2966 |
| 489 | patient satisfaction | 3 | 41 | 145 | 92 |
| 491 | Biomarkers | 2 | 40 | 722 | 762 |
| 491 | Androgens | 3 | 40 | 299 | 584 |
| 491 | Australia | 2 | 40 | 3056 | 2813 |
| 494 | Pediatric Endocrinology | 3 | 38 | 448 | 450 |
| 494 | monitoring | 4 | 38 | 267 | 438 |
| 494 | Metabolic disorders in children | 3 | 38 | 381 | 377 |
| 497 | Asthma | 3 | 37 | 928 | 1310 |
| 497 | health behavior | 3 | 37 | 1236 | 1923 |
| 497 | Technology | 3 | 37 | 5454 | 6247 |
| 500 | Occupational Therapy | 1 | 36 | 2340 | 1347 |
| 500 | Physical Chemistry | 3 | 36 | 2728 | 3525 |
| 500 | Geriatric Oncology | 1 | 36 | 1359 | 1331 |
| 500 | orphan drugs | 1 | 36 | 123 | 32 |
| 504 | Developing countries | 1 | 32 | 4840 | 4107 |
| 505 | Pediatric Rheumatology | 3 | 30 | 302 | 492 |
| 505 | Organ transplantation | 3 | 30 | 529 | 675 |
| 505 | Statistical models | 1 | 30 | 247 | 195 |
| 508 | Genetic Counseling | 1 | 29 | 723 | 599 |
| 508 | Nanobiotechnology | 1 | 29 | 925 | 1271 |
| 508 | Psychometrics | 1 | 29 | 815 | 770 |
| 508 | Cell cycle | 1 | 29 | 729 | 774 |
| 508 | cell proliferation | 1 | 29 | 806 | 821 |
| 508 | eugenics | 1 | 29 | 1457 | 1312 |
| 514 | Anthropology | 2 | 27 | 2479 | 2450 |
| 514 | Morphology | 1 | 27 | 1649 | 1324 |
| 514 | Developmental Immunology | 1 | 27 | 1693 | 1828 |
| 514 | X-rays | 1 | 27 | 1522 | 1188 |
| 514 | Opioids | 1 | 27 | 200 | 125 |
| 519 | Hemophilia | 1 | 26 | 1016 | 931 |
| 520 | Atherosclerosis | 2 | 25 | 285 | 559 |
| 520 | DNA methylation | 2 | 25 | 466 | 953 |
| 520 | Autism | 1 | 25 | 1454 | 1663 |
| 523 | Risk assessment | 1 | 24 | 1431 | 1290 |
| 523 | ecological risk assessment | 1 | 24 | 668 | 706 |
| 523 | Asia | 2 | 24 | 4366 | 4568 |
| 523 | Health Risk Assessment | 1 | 24 | 1129 | 1053 |
| 523 | Yeast | 1 | 24 | 931 | 1052 |
| 528 | Public Policy | 1 | 22 | 3661 | 3902 |
| 528 | Germany | 1 | 22 | 1605 | 824 |
| 528 | Insects | 2 | 22 | 2149 | 2469 |
| 531 | Clinical Psychology | 4 | 21 | 1587 | 3184 |
| 531 | Semantics | 2 | 21 | 354 | 446 |
| 533 | Data Mining | 2 | 20 | 2629 | 3811 |
| 534 | Neurotransmitters | 4 | 19 | 598 | 1030 |
| 534 | Chemical analysis | 1 | 19 | 2295 | 2654 |
| 534 | Antigens | 1 | 19 | 1890 | 2101 |
| 534 | weight loss | 1 | 19 | 394 | 476 |
| 538 | Pharmacokinetics | 1 | 18 | 2087 | 2311 |
| 538 | Simulation Methods | 1 | 18 | 2078 | 2087 |
| 538 | Religion and Psychology | 2 | 18 | 806 | 1127 |
| 538 | Brachytherapy | 2 | 18 | 484 | 494 |
| 538 | Drug discovery | 1 | 18 | 703 | 907 |
| 538 | educational innovations | 1 | 18 | 1074 | 1092 |
| 538 | Human biology | 1 | 18 | 1385 | 1464 |
| 545 | Socioeconomic Factors | 1 | 17 | 1731 | 2219 |
| 545 | cell interaction | 2 | 17 | 1813 | 2896 |
| 547 | Information Technology | 1 | 16 | 4887 | 4438 |
| 547 | Molecular Microbiology | 1 | 16 | 1723 | 2353 |
| 547 | Combinatorial chemistry | 1 | 16 | 1827 | 2341 |
| 547 | Gene library | 1 | 16 | 191 | 336 |
| 547 | information | 1 | 16 | 140 | 60 |
| 547 | Coronary heart disease | 1 | 16 | 613 | 488 |
| 547 | Bacterial diseases | 1 | 16 | 635 | 921 |
| 554 | Educational Psychology | 3 | 15 | 1601 | 2765 |
| 554 | Continuing Education | 2 | 15 | 641 | 804 |
| 556 | Sociology | 2 | 14 | 4577 | 6187 |
| 556 | Community Psychiatry | 1 | 14 | 2238 | 2760 |
| 556 | Pharmacy management | 1 | 14 | 766 | 770 |
| 556 | pharmaceutical industry | 1 | 14 | 1323 | 1531 |
| 556 | Psychiatric hospitals | 1 | 14 | 723 | 760 |
| 561 | Database Management | 1 | 13 | 1472 | 1694 |
| 561 | Evidence-Based Medicine | 14 | 13 | 518 | 3134 |
| 561 | biological evolution | 1 | 13 | 3922 | 4962 |
| 561 | Allergies | 1 | 13 | 405 | 562 |
| 561 | Genes | 1 | 13 | 2359 | 2895 |
| 566 | Public Administration | 1 | 12 | 2746 | 2569 |
| 566 | Synaptic Transmission | 1 | 12 | 1066 | 1481 |
| 568 | Clinical Laboratory Science | 1 | 11 | 643 | 831 |
| 568 | Neurovirology | 1 | 11 | 600 | 889 |
| 568 | Industrial Safety | 3 | 11 | 1457 | 2887 |
| 568 | Human-Computer Interaction | 1 | 11 | 2997 | 3559 |
| 568 | Virtual reality | 1 | 11 | 824 | 1018 |
| 568 | voice | 2 | 11 | 757 | 1255 |
| 568 | Library Science | 1 | 11 | 2703 | 2110 |
| 568 | Culture techniques | 1 | 11 | 696 | 861 |
| 568 | Entomology | 1 | 11 | 4158 | 4375 |
| 568 | Insect biochemistry | 1 | 11 | 911 | 1237 |
| 578 | Bioenergetics | 1 | 10 | 1728 | 2302 |
| 578 | Psychiatric Nursing | 1 | 10 | 1416 | 1772 |
| 578 | Energy metabolism | 1 | 10 | 1230 | 1574 |
| 578 | Mycology | 1 | 10 | 3021 | 3703 |
| 578 | mycoses | 1 | 10 | 1814 | 2491 |
| 578 | disease outbreaks | 1 | 10 | 1248 | 1885 |
| 578 | Epidemics | 1 | 10 | 1171 | 1826 |
| 585 | Anthropological Linguistics | 2 | 9 | 397 | 502 |
| 585 | Pediatric Hematology | 1 | 9 | 905 | 1050 |
| 585 | Disease management | 1 | 9 | 333 | 448 |
| 585 | Medical Anthropology | 1 | 9 | 2621 | 3890 |
| 585 | Happiness | 1 | 9 | 944 | 1417 |
| 585 | cross-cultural comparison | 1 | 9 | 1210 | 1645 |
| 585 | mammals | 1 | 9 | 2109 | 2597 |
| 585 | Immune response | 2 | 9 | 54 | 170 |
| 585 | sports injuries | 2 | 9 | 867 | 1587 |
| 594 | Statistics | 3 | 8 | 3261 | 5009 |
| 594 | Surface Chemistry | 3 | 8 | 4281 | 7189 |
| 594 | Engineering Mathematics | 1 | 8 | 4448 | 4718 |
| 594 | Forensic Anthropology | 1 | 8 | 29 | 29 |
| 594 | Music | 1 | 8 | 1937 | 1913 |
| 594 | Serbia | 2 | 8 | 184 | 304 |
| 594 | Mitochondria | 2 | 8 | 520 | 1228 |
| 594 | Biometrics | 2 | 8 | 1641 | 2602 |
| 602 | Erectile dysfunction | 2 | 7 | 429 | 879 |
| 602 | Healing | 1 | 7 | 315 | 511 |
| 602 | Program Evaluation | 1 | 7 | 230 | 401 |
| 602 | Holistic Health | 1 | 7 | 1095 | 1537 |
| 602 | cell adhesion molecules | 1 | 7 | 1182 | 1887 |
| 602 | Protozoa | 2 | 7 | 655 | 1345 |
| 602 | cytokines | 1 | 7 | 2646 | 3707 |
| 602 | evaluation | 1 | 7 | 411 | 621 |
| 602 | Cell communication | 1 | 7 | 1724 | 2600 |
| 611 | Language Disorders | 2 | 6 | 1231 | 2189 |
| 611 | Biopharmaceutics | 1 | 6 | 2524 | 3444 |
| 611 | Dialysis | 1 | 6 | 351 | 370 |
| 611 | Kidney transplantation | 1 | 6 | 196 | 287 |
| 611 | Speech Disorders | 2 | 6 | 1464 | 2561 |
| 611 | Evolution | 1 | 6 | 3611 | 4872 |
| 617 | Computer Science | 2 | 5 | 3275 | 5158 |
| 617 | brain diseases | 1 | 5 | 33 | 138 |
| 619 | Ergonomics | 3 | 4 | 1295 | 2735 |
| 619 | Information Systems | 1 | 4 | 3096 | 4460 |
| 619 | Signal Processing | 1 | 4 | 3527 | 4640 |
| 619 | Bioethics | 2 | 4 | 1347 | 2625 |
| 619 | Indoor air quality | 1 | 4 | 237 | 420 |
| 619 | monoclonal antibodies | 1 | 4 | 564 | 881 |
| 619 | Air Conditioning | 1 | 4 | 454 | 729 |
| 619 | feeding behavior | 1 | 4 | 1552 | 2375 |
| 619 | Ventilation | 1 | 4 | 1187 | 1949 |
| 619 | Cerebrospinal fluid | 1 | 4 | 306 | 611 |
| 619 | heating | 1 | 4 | 363 | 622 |
| 630 | Speech-Language Pathology | 1 | 3 | 627 | 1072 |
| 630 | Voice Disorders | 1 | 3 | 168 | 363 |
| 630 | Precision medicine | 1 | 3 | 560 | 943 |
| 630 | speech therapy | 1 | 3 | 829 | 1296 |
| 630 | Altitude Sickness | 1 | 3 | 377 | 707 |
| 630 | Environmental monitoring | 1 | 3 | 6637 | 9178 |
| 630 | Pastoral Theology | 1 | 3 | 326 | 344 |
| 630 | Metabolic syndrome | 1 | 3 | 651 | 1276 |
| 630 | Environmental pollutants | 1 | 3 | 4162 | 5852 |
| 630 | environmental pollution | 1 | 3 | 7300 | 9884 |
| 630 | Altitude | 1 | 3 | 377 | 707 |
| 630 | toxicity testing | 1 | 3 | 1648 | 2675 |
| 630 | venom | 1 | 3 | 1861 | 2545 |
| 630 | Toxins | 1 | 3 | 2011 | 2750 |
| 644 | Comparative Physiology | 1 | 2 | 1583 | 2244 |
| 644 | Total Quality Management | 1 | 2 | 1201 | 2074 |
| 644 | Health care reform | 1 | 2 | 186 | 377 |
| 644 | Social welfare | 1 | 2 | 1318 | 2252 |
| 644 | Sexuality | 1 | 2 | 691 | 1216 |
| 644 | psychotherapy | 1 | 2 | 2607 | 3713 |
| 644 | Social work | 1 | 2 | 3074 | 4423 |
| 651 | Computer Graphics | 1 | 1 | 2997 | 4451 |
| 651 | epidemiologic methods | 1 | 1 | 437 | 946 |
| 651 | Gene expression | 1 | 1 | 647 | 1182 |
| 651 | men's health | 3 | 1 | 27 | 225 |
| 651 | Longevity | 1 | 1 | 461 | 1026 |
| 656 | Electrical Engineering | 1 | 0 | 5974 | 7679 |
| 656 | Acoustics | 1 | 0 | 598 | 982 |
| 656 | Mental Health | 1 | 0 | 3487 | 5527 |
| 656 | Acoustic holography | 1 | 0 | 215 | 309 |
| 656 | Hemostasis | 1 | 0 | 1707 | 2667 |
| 656 | nuclear magnetic resonance | 1 | 0 | 2021 | 3051 |
| 656 | Congenital heart disease | 1 | 0 | 262 | 485 |
| 656 | Animal genetics | 1 | 0 | 1139 | 1888 |
| 656 | Holography | 1 | 0 | 215 | 309 |
| 656 | Magnetic Resonance Spectroscopy | 1 | 0 | 2245 | 3360 |
| 656 | Acoustic imaging | 1 | 0 | 215 | 309 |
| 656 | Hypertension in pregnancy | 1 | 0 | 697 | 1102 |
| 656 | individual differences | 1 | 0 | 528 | 1005 |
| 656 | Catholicism | 3 | 0 | 66 | 303 |
| 656 | Africa | 1 | 0 | 3323 | 5156 |
| 656 | India | 1 | 0 | 3750 | 5324 |
| 656 | Nitric oxide | 2 | 0 | 563 | 1402 |
