| 1 | Medicine | 1,197 | 70.7K | 254 | 226 |
| 2 | Science | 903 | 67.0K | 340 | 352 |
| 3 | Biology | 593 | 62.0K | 455 | 376 |
| 4 | Physics | 238 | 48.3K | 1,134 | 518 |
| 5 | Molecular Biology | 695 | 39.4K | 370 | 346 |
| 6 | Research | 913 | 37.3K | 242 | 221 |
| 7 | Hematology | 808 | 36.9K | 52 | 62 |
| 8 | Immunology | 441 | 35.0K | 126 | 100 |
| 9 | Human genetics | 184 | 32.8K | 145 | 168 |
| 10 | Biochemistry | 702 | 32.0K | 539 | 452 |
| 11 | Natural history | 50 | 31.0K | 650 | 338 |
| 12 | Neurology | 507 | 30.5K | 314 | 283 |
| 13 | Immunity | 206 | 25.5K | 82 | 89 |
| 14 | Cytology | 322 | 25.2K | 280 | 250 |
| 15 | Microbiology | 444 | 24.2K | 359 | 357 |
| 16 | Chemistry | 433 | 24.1K | 848 | 698 |
| 17 | Cell Biology | 272 | 20.6K | 291 | 276 |
| 18 | Virology | 222 | 20.4K | 199 | 188 |
| 19 | Medical genetics | 286 | 17.3K | 128 | 147 |
| 20 | Biocompatible Materials | 163 | 17.0K | 398 | 201 |
| 21 | Cardiovascular system | 162 | 15.7K | 126 | 116 |
| 22 | Liver diseases | 194 | 15.0K | 48 | 63 |
| 23 | Leukemia | 184 | 14.1K | 17 | 21 |
| 24 | Pharmacology | 254 | 13.4K | 475 | 314 |
| 25 | Transplantation | 249 | 12.9K | 34 | 36 |
| 26 | Critical Care | 141 | 11.5K | 97 | 102 |
| 26 | Critical Care Medicine | 141 | 11.5K | 99 | 102 |
| 28 | Hypertension | 131 | 11.5K | 147 | 145 |
| 29 | Genetics | 108 | 10.5K | 450 | 327 |
| 30 | Biophysics | 320 | 10.1K | 445 | 456 |
| 31 | Immune system | 47 | 10.1K | 130 | 91 |
| 32 | Diabetes | 107 | 9.1K | 210 | 150 |
| 33 | Psychiatry | 199 | 9.1K | 347 | 347 |
| 34 | Host-parasite interactions | 123 | 8.9K | 46 | 68 |
| 35 | Diabetes mellitus | 95 | 8.5K | 204 | 147 |
| 36 | Cancer | 191 | 8.4K | 265 | 322 |
| 37 | Allergy | 75 | 8.2K | 117 | 110 |
| 38 | viruses | 126 | 7.5K | 112 | 118 |
| 39 | Virulence | 111 | 7.1K | 49 | 81 |
| 40 | Physiology | 140 | 6.8K | 505 | 425 |
| 41 | Clinical Chemistry | 140 | 6.7K | 209 | 173 |
| 42 | Surgery | 41 | 6.4K | 346 | 278 |
| 43 | Immunotherapy | 49 | 6.2K | 282 | 140 |
| 43 | Lung Transplantation | 120 | 6.2K | 18 | 15 |
| 43 | Heart transplantation | 120 | 6.2K | 18 | 15 |
| 46 | Pathology | 189 | 6.2K | 134 | 197 |
| 47 | Stem cells | 184 | 6.0K | 36 | 68 |
| 48 | Toxicology | 139 | 5.4K | 494 | 470 |
| 49 | Pediatrics | 112 | 5.4K | 235 | 235 |
| 50 | Psychophysiology | 55 | 5.2K | 628 | 371 |
| 51 | gene therapy | 125 | 4.9K | 28 | 49 |
| 52 | Public Health | 180 | 4.9K | 481 | 564 |
| 53 | Metabolic diseases | 84 | 4.8K | 308 | 320 |
| 54 | Inflammation | 52 | 4.8K | 66 | 17 |
| 55 | Genetic therapy | 119 | 4.7K | 39 | 49 |
| 56 | Mental Disorders | 78 | 4.6K | 373 | 336 |
| 57 | Histology | 124 | 4.4K | 103 | 133 |
| 58 | human behavior | 35 | 4.4K | 589 | 368 |
| 59 | vascular diseases | 44 | 4.3K | 108 | 63 |
| 60 | Biotechnology | 82 | 4.2K | 1,033 | 942 |
| 61 | Behavior | 39 | 4.2K | 772 | 476 |
| 62 | Pharmaceutical Chemistry | 63 | 4.1K | 730 | 447 |
| 63 | Urology | 89 | 4.0K | 193 | 150 |
| 64 | Medical Microbiology | 80 | 3.9K | 295 | 302 |
| 65 | Bacterial infections | 52 | 3.9K | 48 | 78 |
| 66 | Animal Behavior | 21 | 3.8K | 668 | 286 |
| 67 | Metabolism | 100 | 3.8K | 362 | 461 |
| 68 | Nervous system | 58 | 3.8K | 424 | 336 |
| 69 | Epidemiology | 136 | 3.7K | 347 | 405 |
| 70 | Ethology | 18 | 3.7K | 584 | 251 |
| 71 | Endocrinology | 71 | 3.6K | 520 | 503 |
| 72 | Genomics | 121 | 3.5K | 271 | 359 |
| 73 | Spectrum analysis | 87 | 3.5K | 815 | 784 |
| 74 | Electrophoresis | 85 | 3.4K | 85 | 55 |
| 75 | Medical innovations | 24 | 3.4K | 196 | 127 |
| 76 | Biomedical Engineering | 207 | 3.4K | 362 | 694 |
| 77 | drug development | 22 | 3.4K | 203 | 120 |
| 78 | nucleic acids | 40 | 3.4K | 402 | 363 |
| 79 | Thrombosis | 48 | 3.3K | 164 | 113 |
| 80 | Chromatographic analysis | 85 | 3.3K | 109 | 39 |
| 81 | Chromatography | 83 | 3.3K | 84 | 33 |
| 82 | Cytogenetics | 56 | 3.3K | 177 | 213 |
| 83 | Neurophysiology | 86 | 3.2K | 477 | 536 |
| 84 | Analytical Biochemistry | 39 | 3.2K | 254 | 90 |
| 85 | Respiration | 86 | 3.1K | 141 | 159 |
| 86 | Bioengineering | 84 | 3.0K | 642 | 824 |
| 87 | Anatomy | 88 | 2.9K | 218 | 267 |
| 88 | drug therapy | 90 | 2.9K | 274 | 265 |
| 89 | Geriatrics | 75 | 2.9K | 411 | 342 |
| 90 | Mental illness | 57 | 2.9K | 304 | 331 |
| 91 | Diagnostic Imaging | 88 | 2.8K | 171 | 191 |
| 92 | infection | 58 | 2.8K | 203 | 181 |
| 93 | mycoses | 26 | 2.8K | 120 | 100 |
| 94 | free radicals | 31 | 2.7K | 278 | 197 |
| 95 | Infections | 55 | 2.7K | 120 | 141 |
| 96 | Developmental Biology | 31 | 2.6K | 512 | 399 |
| 97 | Pediatric Neurology | 26 | 2.6K | 240 | 211 |
| 98 | arthritis | 50 | 2.6K | 202 | 217 |
| 99 | Obstetrics | 84 | 2.5K | 309 | 292 |
| 100 | Oncology | 51 | 2.5K | 349 | 584 |
| 101 | Palliative Care | 31 | 2.5K | 141 | 45 |
| 102 | Primary health care | 71 | 2.4K | 180 | 142 |
| 103 | Europe | 88 | 2.4K | 390 | 334 |
| 104 | Cell differentiation | 49 | 2.3K | 297 | 388 |
| 105 | Synaptic Transmission | 94 | 2.3K | 6 | 17 |
| 106 | Aging | 54 | 2.3K | 506 | 420 |
| 107 | Nuclear Medicine | 52 | 2.3K | 140 | 102 |
| 108 | Immunopathology | 68 | 2.2K | 137 | 156 |
| 109 | Brain | 63 | 2.1K | 537 | 577 |
| 110 | Hemodynamics | 44 | 2.1K | 99 | 144 |
| 111 | Respiratory system | 58 | 2.1K | 20 | 26 |
| 112 | Neurobiology | 39 | 2.1K | 417 | 423 |
| 113 | rare diseases | 44 | 2.0K | 43 | 35 |
| 114 | Rheumatology | 35 | 2.0K | 210 | 202 |
| 115 | biological factors | 38 | 2.0K | 331 | 224 |
| 116 | Neurochemistry | 61 | 2.0K | 458 | 513 |
| 117 | Microbial Ecology | 40 | 1.9K | 497 | 580 |
| 118 | Parasitic Diseases | 36 | 1.9K | 378 | 244 |
| 119 | Embryology | 34 | 1.8K | 391 | 360 |
| 120 | Molecular Imaging | 38 | 1.8K | 103 | 99 |
| 121 | Materials | 31 | 1.8K | 2,089 | 1,554 |
| 122 | Orthopedics | 57 | 1.7K | 246 | 219 |
| 123 | Nutrition | 59 | 1.7K | 815 | 910 |
| 124 | Health Education | 40 | 1.7K | 381 | 263 |
| 125 | Environmental Microbiology | 24 | 1.6K | 337 | 310 |
| 126 | Disease | 7 | 1.6K | 151 | 230 |
| 127 | cell interaction | 38 | 1.6K | 97 | 113 |
| 128 | diseases | 4 | 1.6K | 237 | 237 |
| 129 | Medical Technology | 90 | 1.6K | 54 | 163 |
| 130 | Biochemical Engineering | 23 | 1.6K | 1,206 | 1,113 |
| 130 | Obesity | 32 | 1.6K | 486 | 430 |
| 132 | Audiology | 68 | 1.6K | 80 | 121 |
| 133 | Therapeutics | 46 | 1.5K | 314 | 357 |
| 134 | Sexual health | 63 | 1.5K | 51 | 71 |
| 135 | cell physiology | 25 | 1.4K | 422 | 404 |
| 136 | Health Services Research | 43 | 1.4K | 272 | 254 |
| 137 | Health | 45 | 1.4K | 369 | 358 |
| 138 | Homeostasis | 4 | 1.4K | 316 | 261 |
| 138 | Cell metabolism | 4 | 1.4K | 527 | 266 |
| 140 | Neuroimmunology | 18 | 1.4K | 179 | 141 |
| 140 | Oncogenes | 17 | 1.4K | 393 | 354 |
| 142 | Nanotechnology | 31 | 1.4K | 1,650 | 1,510 |
| 143 | Clinical Immunology | 35 | 1.3K | 211 | 185 |
| 144 | Neurosurgery | 43 | 1.3K | 119 | 175 |
| 145 | Genetic regulation | 25 | 1.3K | 256 | 267 |
| 146 | Immunogenetics | 73 | 1.3K | 23 | 68 |
| 147 | Artificial Organs | 72 | 1.3K | 28 | 33 |
| 147 | amino acids | 59 | 1.3K | 6 | 22 |
| 149 | Environment | 27 | 1.3K | 1,590 | 1,791 |
| 150 | Psychoneuroimmunology | 16 | 1.3K | 166 | 128 |
| 151 | Proteomics | 21 | 1.3K | 246 | 190 |
| 152 | Technology | 25 | 1.2K | 1,294 | 835 |
| 153 | Genetic engineering | 30 | 1.2K | 503 | 519 |
| 154 | cytokines | 19 | 1.2K | 308 | 196 |
| 155 | Kidney diseases | 33 | 1.2K | 145 | 137 |
| 156 | Psychology | 48 | 1.2K | 1,120 | 1,098 |
| 157 | Medical Oncology | 37 | 1.2K | 356 | 417 |
| 158 | Proteome | 18 | 1.2K | 366 | 281 |
| 159 | Histochemistry | 47 | 1.2K | 92 | 131 |
| 159 | drugs | 36 | 1.2K | 409 | 377 |
| 161 | Parasitology | 28 | 1.2K | 645 | 418 |
| 162 | Autoimmunity | 24 | 1.2K | 157 | 171 |
| 163 | Bacteria | 25 | 1.2K | 40 | 64 |
| 164 | Cell death | 28 | 1.2K | 287 | 402 |
| 165 | Psychopharmacology | 19 | 1.2K | 518 | 441 |
| 166 | Clinical Biochemistry | 21 | 1.2K | 309 | 196 |
| 167 | Heart Failure | 19 | 1.1K | 112 | 105 |
| 168 | Hematopoietic stem cell transplantation | 25 | 1.1K | 30 | 35 |
| 169 | Signal Transduction | 37 | 1.1K | 247 | 429 |
| 170 | Health Policy | 46 | 1.1K | 419 | 459 |
| 171 | Chemotherapy | 28 | 1.1K | 317 | 248 |
| 172 | Neurons | 8 | 1.1K | 330 | 407 |
| 173 | cloning | 31 | 1.1K | 69 | 187 |
| 174 | Autoimmune diseases | 20 | 1.1K | 131 | 96 |
| 175 | Antigens | 66 | 1.1K | 38 | 120 |
| 176 | Medical Ethics | 53 | 1.0K | 136 | 110 |
| 177 | Microorganisms | 17 | 1.0K | 320 | 309 |
| 178 | animals | 47 | 1.0K | 134 | 139 |
| 179 | Orthopedic Surgery | 25 | 1.0K | 163 | 114 |
| 180 | Neuropsychology | 34 | 1.0K | 611 | 633 |
| 181 | alcoholism | 27 | 983 | 390 | 373 |
| 182 | Eating Disorders | 24 | 965 | 223 | 181 |
| 182 | Feeding and Eating Disorders | 24 | 965 | 204 | 170 |
| 184 | medical education | 34 | 941 | 384 | 365 |
| 185 | Child Development | 17 | 938 | 733 | 565 |
| 186 | gastrointestinal tract | 15 | 934 | 61 | 55 |
| 187 | Clinical Pharmacology | 38 | 928 | 216 | 256 |
| 188 | Autoantibodies | 17 | 926 | 135 | 99 |
| 189 | genome | 28 | 924 | 360 | 574 |
| 190 | Computational Biology | 28 | 923 | 672 | 729 |
| 191 | Alzheimer's disease | 22 | 918 | 455 | 272 |
| 192 | Molecular Microbiology | 18 | 917 | 310 | 367 |
| 193 | Memory | 26 | 905 | 508 | 513 |
| 194 | Dementia | 20 | 892 | 471 | 238 |
| 195 | Randomized Controlled Trials | 34 | 888 | 168 | 106 |
| 196 | Attention | 26 | 882 | 460 | 439 |
| 197 | Psychosomatic Medicine | 25 | 866 | 165 | 217 |
| 197 | Bioinformatics | 24 | 866 | 620 | 622 |
| 199 | Muscles | 26 | 860 | 171 | 217 |
| 200 | Cell communication | 22 | 858 | 61 | 93 |
| 201 | Pregnancy | 15 | 850 | 239 | 130 |
| 202 | counseling | 8 | 844 | 759 | 315 |
| 203 | health planning | 27 | 843 | 570 | 396 |
| 204 | Diagnostic microbiology | 19 | 839 | 357 | 490 |
| 205 | Neonatology | 12 | 832 | 168 | 76 |
| 206 | Substance Abuse | 27 | 831 | 387 | 351 |
| 206 | Visual Perception | 24 | 831 | 468 | 432 |
| 206 | Perception | 24 | 831 | 549 | 521 |
| 209 | Reproduction | 24 | 827 | 708 | 647 |
| 210 | Patient education | 7 | 815 | 319 | 158 |
| 211 | Radiobiology | 24 | 809 | 365 | 368 |
| 212 | blood transfusion | 39 | 797 | 101 | 129 |
| 213 | RNA | 9 | 789 | 254 | 146 |
| 214 | Analytical Chemistry | 29 | 787 | 1,574 | 1,629 |
| 215 | Growth | 15 | 772 | 451 | 503 |
| 216 | Child | 48 | 767 | 427 | 605 |
| 217 | Magnetic Resonance Imaging | 12 | 762 | 153 | 75 |
| 218 | Nephrology | 13 | 754 | 172 | 158 |
| 219 | Medical Imaging | 11 | 752 | 118 | 52 |
| 220 | Amyotrophic Lateral Sclerosis | 25 | 746 | 21 | 33 |
| 221 | Statistics | 25 | 739 | 948 | 695 |
| 222 | Morphology | 10 | 725 | 415 | 143 |
| 223 | carcinogens | 14 | 715 | 323 | 281 |
| 224 | Decision making | 12 | 703 | 625 | 405 |
| 225 | Ethics | 25 | 700 | 191 | 132 |
| 226 | Genetic disorders | 25 | 696 | 95 | 109 |
| 227 | Cardiovascular diseases | 28 | 693 | 445 | 475 |
| 228 | scientific societies | 21 | 683 | 147 | 149 |
| 229 | Biometrics | 15 | 677 | 427 | 283 |
| 230 | Membranes | 13 | 674 | 818 | 736 |
| 231 | Chronic diseases | 17 | 670 | 220 | 293 |
| 232 | Astrocytes | 19 | 669 | 96 | 206 |
| 233 | United Kingdom | 39 | 664 | 303 | 530 |
| 234 | Vaccines | 23 | 660 | 471 | 493 |
| 235 | Antioxidants | 9 | 649 | 365 | 335 |
| 236 | Oxidation-reduction | 14 | 644 | 266 | 414 |
| 237 | Lipids | 12 | 633 | 554 | 487 |
| 238 | Neuromuscular diseases | 19 | 626 | 167 | 171 |
| 239 | Frontotemporal lobar degeneration | 20 | 614 | 21 | 27 |
| 240 | Organ transplantation | 32 | 611 | 47 | 42 |
| 241 | Public Policy | 18 | 605 | 587 | 540 |
| 242 | rehabilitation | 31 | 603 | 505 | 717 |
| 243 | Diet | 20 | 601 | 661 | 891 |
| 244 | pain | 14 | 594 | 536 | 527 |
| 245 | feeding behavior | 8 | 590 | 398 | 256 |
| 246 | Food | 10 | 588 | 1,733 | 1,327 |
| 246 | Hormones | 22 | 588 | 381 | 471 |
| 248 | mutagens | 12 | 587 | 300 | 312 |
| 249 | soil microbiology | 5 | 579 | 1,066 | 759 |
| 250 | Hemostasis | 17 | 575 | 232 | 176 |
| 251 | Reproductive health | 9 | 573 | 345 | 178 |
| 252 | Carcinogenesis | 12 | 572 | 367 | 345 |
| 253 | Bacteriology | 12 | 568 | 835 | 837 |
| 254 | drug addiction | 12 | 562 | 490 | 434 |
| 255 | glycoproteins | 24 | 557 | 68 | 141 |
| 255 | Glycoconjugates | 24 | 557 | 68 | 141 |
| 255 | glycolipids | 24 | 557 | 68 | 141 |
| 258 | gene mapping | 18 | 556 | 663 | 803 |
| 259 | Systems Biology | 25 | 552 | 398 | 500 |
| 260 | Biomechanics | 20 | 545 | 391 | 480 |
| 260 | Quality of life | 21 | 545 | 359 | 520 |
| 262 | Cytokine | 11 | 544 | 100 | 133 |
| 262 | Appetite | 7 | 544 | 371 | 233 |
| 264 | Immunopharmacology | 7 | 541 | 614 | 303 |
| 265 | Bioethics | 41 | 529 | 127 | 180 |
| 266 | Environmental Health | 15 | 524 | 2,418 | 2,404 |
| 267 | drug resistance | 15 | 523 | 148 | 174 |
| 268 | Botany | 4 | 519 | 2,935 | 1,697 |
| 269 | Molecular Pharmacology | 7 | 518 | 511 | 364 |
| 270 | Research Design | 21 | 515 | 317 | 425 |
| 271 | internet | 15 | 514 | 595 | 580 |
| 272 | Infection control | 14 | 510 | 39 | 49 |
| 273 | Nitric oxide | 25 | 504 | 6 | 36 |
| 274 | proteins | 17 | 499 | 790 | 741 |
| 275 | Tropical Medicine | 7 | 496 | 1,091 | 499 |
| 276 | liver | 27 | 493 | 21 | 42 |
| 277 | Gene expression regulation | 8 | 492 | 496 | 376 |
| 278 | occupational diseases | 16 | 487 | 226 | 270 |
| 279 | Microcirculation | 15 | 482 | 120 | 120 |
| 280 | Hemophilia | 27 | 480 | 76 | 97 |
| 281 | plant molecular biology | 4 | 479 | 1,212 | 843 |
| 282 | Neuropharmacology | 7 | 476 | 336 | 192 |
| 283 | Oligosaccharide | 20 | 474 | 37 | 115 |
| 283 | Carbohydrates | 20 | 474 | 67 | 145 |
| 285 | Growth factors | 9 | 472 | 67 | 120 |
| 286 | Immunochemistry | 15 | 470 | 301 | 283 |
| 287 | Antibacterial agents | 6 | 464 | 392 | 216 |
| 287 | Bacterial diseases | 7 | 464 | 87 | 47 |
| 289 | Contraception | 3 | 462 | 553 | 165 |
| 289 | Jurisprudence | 21 | 462 | 262 | 254 |
| 291 | Birth control | 2 | 461 | 550 | 133 |
| 292 | Molecular cloning | 14 | 453 | 553 | 512 |
| 292 | Plants | 3 | 453 | 1,962 | 970 |
| 292 | Plant cells | 3 | 453 | 932 | 800 |
| 295 | Biofilms | 12 | 451 | 9 | 24 |
| 296 | Developmental Genetics | 3 | 447 | 423 | 322 |
| 296 | viral genetics | 3 | 447 | 250 | 254 |
| 298 | cardiac catheterization | 13 | 441 | 246 | 158 |
| 298 | Molecular structure | 8 | 441 | 1,527 | 909 |
| 300 | environmental exposure | 15 | 439 | 731 | 844 |
| 301 | Information Systems | 35 | 435 | 174 | 456 |
| 302 | Biopharmaceutics | 13 | 433 | 422 | 436 |
| 303 | Nanobiotechnology | 12 | 421 | 106 | 200 |
| 304 | older people | 16 | 419 | 590 | 430 |
| 305 | Chromosome mapping | 16 | 413 | 641 | 827 |
| 306 | histological techniques | 13 | 412 | 259 | 335 |
| 307 | Spine | 7 | 411 | 385 | 319 |
| 308 | Dermatology | 15 | 396 | 682 | 665 |
| 308 | Oxidative stress | 9 | 396 | 386 | 552 |
| 308 | ethanol | 14 | 396 | 138 | 151 |
| 311 | drug evaluation | 20 | 392 | 338 | 472 |
| 312 | Cognition | 11 | 391 | 875 | 818 |
| 313 | venom | 12 | 382 | 249 | 231 |
| 313 | Toxins | 12 | 382 | 286 | 266 |
| 315 | Antiviral agents | 19 | 380 | 55 | 87 |
| 316 | vitamin C | 3 | 377 | 384 | 167 |
| 316 | vitamin E | 3 | 377 | 384 | 167 |
| 318 | Blood vessels | 12 | 376 | 105 | 103 |
| 319 | United States | 18 | 375 | 1,993 | 2,008 |
| 320 | nanoscience | 4 | 369 | 2,352 | 1,617 |
| 321 | Asthma | 7 | 367 | 344 | 161 |
| 321 | Sports Medicine | 20 | 367 | 935 | 1,020 |
| 321 | Nanostructured Materials | 13 | 367 | 1,575 | 1,662 |
| 324 | Parkinson's disease | 3 | 365 | 235 | 77 |
| 325 | Familial diseases | 17 | 361 | 30 | 37 |
| 326 | Emergency Medicine | 11 | 359 | 603 | 394 |
| 327 | Cerebral cortex | 6 | 349 | 621 | 523 |
| 328 | Materials Science | 10 | 346 | 2,461 | 2,235 |
| 329 | Bone diseases | 3 | 344 | 439 | 290 |
| 330 | Nanostructures | 7 | 337 | 1,309 | 1,063 |
| 331 | Digestive system diseases | 9 | 336 | 477 | 415 |
| 332 | Sociology | 12 | 333 | 1,462 | 1,292 |
| 333 | Mass Spectrometry | 7 | 325 | 715 | 529 |
| 334 | Medical Physics | 12 | 323 | 730 | 795 |
| 335 | brain mapping | 6 | 318 | 419 | 393 |
| 336 | Recombinant DNA | 9 | 316 | 798 | 703 |
| 337 | Medical Laboratory Science | 18 | 312 | 716 | 1,173 |
| 338 | hospice care | 21 | 304 | 88 | 137 |
| 339 | Nanoparticles | 6 | 303 | 1,367 | 1,058 |
| 339 | Hearing | 18 | 303 | 215 | 279 |
| 341 | Information Science | 5 | 300 | 2,037 | 1,437 |
| 342 | Drug delivery systems | 6 | 299 | 1,066 | 941 |
| 342 | disease outbreaks | 9 | 299 | 238 | 281 |
| 342 | Epidemics | 9 | 299 | 229 | 279 |
| 345 | Neurogenetics | 7 | 294 | 157 | 112 |
| 346 | Engineering | 15 | 292 | 2,019 | 1,956 |
| 347 | Chemical Engineering | 14 | 291 | 2,255 | 2,640 |
| 348 | Genetic testing | 18 | 287 | 32 | 31 |
| 349 | behavioral medicine | 15 | 275 | 473 | 851 |
| 350 | Oral Medicine | 13 | 274 | 277 | 214 |
| 351 | Radioisotopes | 13 | 270 | 433 | 334 |
| 352 | Community Psychiatry | 8 | 268 | 494 | 507 |
| 353 | Genetic recombination | 8 | 264 | 807 | 727 |
| 354 | Enteral nutrition | 11 | 261 | 343 | 509 |
| 354 | Parenteral nutrition | 11 | 261 | 418 | 583 |
| 354 | cell adhesion molecules | 5 | 261 | 89 | 140 |
| 354 | Flow cytometry | 11 | 261 | 116 | 163 |
| 358 | software | 9 | 260 | 527 | 648 |
| 359 | Adolescent Medicine | 4 | 258 | 402 | 490 |
| 360 | Ecology | 7 | 253 | 3,836 | 3,984 |
| 361 | Elderly | 10 | 248 | 609 | 331 |
| 362 | Developmental Immunology | 7 | 245 | 322 | 363 |
| 363 | Molecular Spectroscopy | 12 | 244 | 893 | 998 |
| 364 | Anxiety Disorders | 2 | 241 | 591 | 425 |
| 364 | Anxiety | 2 | 241 | 588 | 426 |
| 366 | Health Services Administration | 7 | 238 | 568 | 487 |
| 367 | Emerging infectious diseases | 11 | 237 | 75 | 157 |
| 368 | drug abuse | 2 | 236 | 736 | 288 |
| 369 | Sarcopenia | 7 | 234 | 181 | 315 |
| 370 | Drug design | 10 | 233 | 745 | 912 |
| 371 | Microscopy | 7 | 231 | 888 | 598 |
| 372 | Pharmacy | 8 | 230 | 1,222 | 1,194 |
| 373 | Fluorescence spectroscopy | 11 | 227 | 75 | 86 |
| 374 | management | 6 | 226 | 2,442 | 2,170 |
| 374 | planning | 6 | 226 | 463 | 285 |
| 376 | Functional Genomics | 9 | 225 | 95 | 184 |
| 377 | Otolaryngology | 8 | 223 | 269 | 253 |
| 378 | Hallucinogens | 1 | 222 | 336 | 83 |
| 379 | Semiconductors | 5 | 221 | 1,726 | 1,028 |
| 380 | Emergency Medical Services | 7 | 217 | 343 | 240 |
| 380 | Electronics | 8 | 217 | 2,097 | 1,765 |
| 382 | Plant genetic engineering | 4 | 216 | 706 | 625 |
| 382 | Radiation | 6 | 216 | 1,527 | 1,072 |
| 384 | chromatin | 1 | 214 | 270 | 84 |
| 385 | Electrophysiology | 20 | 213 | 296 | 483 |
| 386 | health services accessibility | 10 | 212 | 427 | 483 |
| 386 | Lipid metabolism | 3 | 212 | 391 | 278 |
| 386 | Lipid | 3 | 212 | 393 | 278 |
| 389 | Physical Therapy | 8 | 206 | 726 | 824 |
| 390 | enzymes | 8 | 205 | 859 | 977 |
| 391 | miniaturization | 4 | 200 | 1,500 | 1,320 |
| 392 | Germany | 24 | 199 | 105 | 116 |
| 392 | mammals | 7 | 199 | 624 | 517 |
| 394 | Gerontology | 13 | 195 | 846 | 946 |
| 395 | psychotherapy | 12 | 194 | 586 | 783 |
| 396 | Social Sciences | 6 | 193 | 2,515 | 1,719 |
| 397 | Antibodies | 7 | 192 | 324 | 343 |
| 397 | anesthesia | 12 | 192 | 153 | 127 |
| 399 | Geriatric Psychiatry | 15 | 190 | 336 | 564 |
| 399 | transgenic organisms | 3 | 190 | 223 | 144 |
| 399 | Medical Anthropology | 6 | 190 | 796 | 958 |
| 399 | transgenic animals | 3 | 190 | 214 | 140 |
| 399 | Transgenic plants | 3 | 190 | 401 | 286 |
| 404 | risk factors | 10 | 189 | 299 | 422 |
| 404 | Psychiatric Epidemiology | 5 | 189 | 325 | 361 |
| 406 | Developmental Neurobiology | 9 | 187 | 211 | 277 |
| 407 | Polymers | 9 | 186 | 2,620 | 2,607 |
| 407 | Schizophrenia | 8 | 186 | 540 | 700 |
| 409 | Ophthalmology | 15 | 183 | 749 | 1,043 |
| 409 | Radiation Oncology | 9 | 183 | 134 | 190 |
| 409 | Thorax | 6 | 183 | 250 | 295 |
| 412 | Cochlear Implants | 9 | 180 | 22 | 22 |
| 413 | Neuropsychiatry | 6 | 176 | 530 | 539 |
| 413 | Industrial Microbiology | 3 | 176 | 1,866 | 1,550 |
| 415 | complementary therapies | 17 | 174 | 473 | 1,079 |
| 416 | calcification | 6 | 172 | 314 | 366 |
| 417 | Neurotransmitters | 7 | 166 | 169 | 303 |
| 417 | Socioeconomic Factors | 10 | 166 | 318 | 530 |
| 419 | Clinical Laboratory Science | 8 | 165 | 67 | 70 |
| 419 | Cell division | 3 | 165 | 338 | 286 |
| 421 | Tissue Engineering | 5 | 164 | 242 | 235 |
| 421 | Alternative Medicine | 15 | 164 | 481 | 1,073 |
| 421 | Allergies | 1 | 164 | 271 | 61 |
| 424 | hygiene | 3 | 163 | 500 | 306 |
| 425 | Neurotoxicology | 4 | 162 | 463 | 416 |
| 425 | Apoptosis | 4 | 162 | 181 | 158 |
| 425 | neurotoxins | 4 | 162 | 181 | 158 |
| 425 | Neurotoxic agents | 4 | 162 | 181 | 158 |
| 425 | Nerve regeneration | 4 | 162 | 181 | 158 |
| 430 | Environmental Psychology | 1 | 158 | 661 | 403 |
| 430 | Cytoskeleton | 5 | 158 | 186 | 207 |
| 430 | Bones | 4 | 158 | 575 | 644 |
| 433 | Menopause | 1 | 155 | 523 | 172 |
| 434 | Sports | 7 | 154 | 1,365 | 1,253 |
| 435 | Exercise | 8 | 152 | 879 | 937 |
| 436 | Infertility | 3 | 150 | 700 | 692 |
| 436 | fertility | 3 | 150 | 787 | 743 |
| 438 | Bioorganic chemistry | 6 | 143 | 1,939 | 2,065 |
| 438 | DNA polymerases | 2 | 143 | 441 | 578 |
| 440 | sexual behavior | 4 | 141 | 566 | 510 |
| 441 | behavior therapy | 4 | 140 | 678 | 613 |
| 442 | Internet of Things | 1 | 139 | 1,599 | 960 |
| 442 | Pharmacogenetics | 8 | 139 | 475 | 707 |
| 442 | Women's health | 11 | 139 | 516 | 796 |
| 445 | Manufacturing Processes | 6 | 138 | 1,631 | 1,646 |
| 445 | Product Design | 6 | 138 | 338 | 270 |
| 445 | Production Engineering | 6 | 138 | 1,399 | 1,271 |
| 448 | nuclear magnetic resonance | 6 | 137 | 680 | 627 |
| 448 | Magnetic Resonance Spectroscopy | 6 | 137 | 798 | 691 |
| 450 | Molecular evolution | 6 | 135 | 965 | 1,315 |
| 450 | polymerization | 6 | 135 | 2,586 | 2,518 |
| 452 | Pharmaceutical Technology | 6 | 134 | 1,060 | 1,237 |
| 452 | Cognitive Science | 6 | 134 | 1,084 | 1,328 |
| 452 | Pancreatic diseases | 2 | 134 | 390 | 227 |
| 455 | preimplantation genetic diagnosis | 6 | 132 | 244 | 280 |
| 455 | embryo transfer | 6 | 132 | 256 | 290 |
| 457 | Pharmacokinetics | 4 | 131 | 671 | 707 |
| 457 | disabilities | 3 | 131 | 676 | 487 |
| 459 | Cognitive neuroscience | 4 | 130 | 796 | 866 |
| 460 | Geriatric Pharmacology | 5 | 128 | 192 | 220 |
| 461 | Interferons | 5 | 127 | 177 | 193 |
| 462 | Radiologic Technology | 2 | 126 | 165 | 42 |
| 462 | Interventional Radiology | 2 | 126 | 165 | 42 |
| 462 | Interventional Radiography | 2 | 126 | 165 | 42 |
| 462 | Endoscopic Surgery | 2 | 126 | 165 | 42 |
| 466 | Radiology | 11 | 125 | 628 | 782 |
| 466 | Depression | 1 | 125 | 584 | 421 |
| 468 | Radiography | 7 | 123 | 417 | 757 |
| 469 | pain management | 6 | 122 | 366 | 435 |
| 470 | Personality Assessment | 2 | 119 | 629 | 540 |
| 470 | transport vesicles | 3 | 119 | 203 | 425 |
| 472 | Histocompatibility Testing | 6 | 118 | 270 | 334 |
| 473 | Hearing Aids | 8 | 116 | 94 | 117 |
| 474 | prostaglandins | 6 | 115 | 272 | 333 |
| 475 | Meteorology | 1 | 114 | 2,726 | 1,855 |
| 475 | Developmental Psychology | 2 | 114 | 1,181 | 891 |
| 477 | Behavioral Genetics | 2 | 113 | 287 | 252 |
| 477 | Vaccination | 3 | 113 | 241 | 216 |
| 479 | Primates | 3 | 112 | 698 | 514 |
| 480 | Mycology | 2 | 111 | 1,672 | 1,281 |
| 481 | Photonics | 5 | 110 | 1,398 | 1,564 |
| 481 | Chemical analysis | 7 | 110 | 719 | 993 |
| 483 | Genetic epidemiology | 4 | 108 | 183 | 212 |
| 483 | preventive medicine | 5 | 108 | 831 | 1,020 |
| 483 | Colloids | 6 | 108 | 2,537 | 3,058 |
| 483 | heredity | 4 | 108 | 534 | 454 |
| 487 | Nutrition physiology | 3 | 107 | 693 | 682 |
| 488 | tomography | 5 | 105 | 265 | 238 |
| 489 | Post-traumatic stress disorder | 3 | 104 | 715 | 715 |
| 490 | Surface Chemistry | 5 | 102 | 2,709 | 2,999 |
| 490 | biological evolution | 3 | 102 | 1,833 | 1,922 |
| 490 | Consciousness | 2 | 102 | 598 | 413 |
| 493 | Erectile dysfunction | 8 | 101 | 96 | 187 |
| 493 | X-rays | 4 | 101 | 447 | 349 |
| 493 | animal diseases | 8 | 101 | 247 | 407 |
| 496 | Long-Term Care | 4 | 100 | 401 | 514 |
| 496 | Long-term care facilities | 4 | 100 | 399 | 512 |
| 496 | Aerosols | 1 | 100 | 835 | 444 |
| 496 | Reproductive toxicology | 5 | 100 | 259 | 406 |
| 496 | aerosol | 1 | 100 | 607 | 323 |
| 501 | Smoking | 3 | 99 | 680 | 736 |
| 501 | Child psychology | 2 | 99 | 1,526 | 1,323 |
| 503 | visualization | 21 | 98 | 456 | 709 |
| 504 | Artificial Intelligence | 2 | 95 | 3,722 | 2,974 |
| 504 | Cerebrospinal fluid | 6 | 95 | 52 | 137 |
| 506 | biomedicine | 3 | 94 | 484 | 591 |
| 506 | Multiple sclerosis | 7 | 94 | 312 | 366 |
| 506 | gene transfer | 3 | 94 | 239 | 245 |
| 506 | Gastrointestinal diseases | 11 | 94 | 206 | 492 |
| 506 | genetic transformation | 3 | 94 | 239 | 245 |
| 511 | cell movement | 2 | 93 | 304 | 297 |
| 512 | protein | 6 | 92 | 802 | 996 |
| 513 | Organic Chemistry | 3 | 91 | 2,699 | 2,474 |
| 513 | Surface-Active Agents | 4 | 91 | 988 | 1,310 |
| 513 | Surface properties | 4 | 91 | 1,041 | 1,366 |
| 513 | Screening | 1 | 91 | 374 | 140 |
| 517 | locomotion | 4 | 90 | 537 | 611 |
| 517 | posture | 4 | 90 | 537 | 611 |
| 517 | monitoring | 4 | 90 | 205 | 171 |
| 517 | gait | 4 | 90 | 537 | 611 |
| 517 | walking | 4 | 90 | 537 | 611 |
| 522 | Cardiovascular Pharmacology | 4 | 89 | 189 | 259 |
| 522 | dietary supplements | 2 | 89 | 1,083 | 924 |
| 524 | epilepsy | 6 | 88 | 581 | 760 |
| 524 | toxicity testing | 5 | 88 | 422 | 647 |
| 526 | society | 2 | 87 | 113 | 53 |
| 527 | Speech | 4 | 85 | 755 | 862 |
| 528 | Pediatric Hematology | 5 | 84 | 256 | 208 |
| 529 | Adolescent | 9 | 83 | 1,074 | 1,722 |
| 529 | Oligosaccharides | 4 | 83 | 189 | 254 |
| 531 | Photochemistry | 2 | 82 | 1,912 | 1,617 |
| 531 | Photobiology | 2 | 82 | 1,641 | 1,345 |
| 533 | Precision medicine | 3 | 81 | 193 | 168 |
| 533 | Steroids | 2 | 81 | 1,012 | 847 |
| 535 | Freeze-Drying | 7 | 77 | 168 | 342 |
| 535 | Hypothermia | 7 | 77 | 168 | 342 |
| 535 | Freeze Drying | 7 | 77 | 168 | 342 |
| 538 | Genes | 3 | 76 | 1,053 | 1,088 |
| 539 | Veterinary Immunology | 5 | 74 | 222 | 329 |
| 539 | Combinatorial chemistry | 2 | 74 | 831 | 916 |
| 541 | Nuclear Physics | 4 | 73 | 3,069 | 2,994 |
| 542 | Telemedicine | 4 | 72 | 237 | 383 |
| 542 | Sleep Disorders | 3 | 72 | 1,269 | 1,262 |
| 542 | Recycling | 1 | 72 | 1,046 | 1,112 |
| 542 | Sleep | 3 | 72 | 1,298 | 1,275 |
| 546 | Humanities | 6 | 71 | 1,295 | 1,357 |
| 546 | Extracellular matrix | 5 | 71 | 166 | 363 |
| 546 | collagen | 5 | 71 | 170 | 376 |
| 549 | peptides | 3 | 70 | 793 | 713 |
| 550 | Zoology | 1 | 69 | 3,188 | 2,026 |
| 550 | Culture techniques | 2 | 69 | 342 | 266 |
| 552 | Cognitive Therapy | 2 | 67 | 738 | 644 |
| 553 | Global Health | 3 | 66 | 1,063 | 1,011 |
| 553 | System analysis | 12 | 66 | 1,198 | 2,276 |
| 555 | Computer Science | 3 | 64 | 2,078 | 1,782 |
| 555 | Plant physiology | 2 | 64 | 2,200 | 2,287 |
| 555 | Social support | 3 | 64 | 136 | 193 |
| 555 | Social environment | 3 | 64 | 139 | 200 |
| 559 | Nursing | 4 | 63 | 1,676 | 1,645 |
| 559 | Immunotoxicology | 2 | 63 | 397 | 300 |
| 559 | Mental Health Services | 8 | 63 | 650 | 1,196 |
| 562 | Mathematics | 4 | 62 | 4,649 | 4,041 |
| 562 | Memory disorders | 1 | 62 | 495 | 355 |
| 564 | Electron Microscopy | 6 | 61 | 257 | 412 |
| 565 | Environmental Toxicology | 1 | 60 | 3,184 | 2,817 |
| 565 | Industry | 1 | 60 | 443 | 517 |
| 567 | Optics | 19 | 59 | 1,874 | 3,054 |
| 568 | Biosensors | 3 | 58 | 1,236 | 1,856 |
| 568 | Cannabis | 5 | 58 | 38 | 111 |
| 568 | cannabinoids | 5 | 58 | 36 | 101 |
| 571 | Language Disorders | 4 | 53 | 705 | 859 |
| 571 | Speech Disorders | 4 | 53 | 818 | 1,027 |
| 573 | Bioenergetics | 4 | 52 | 700 | 1,122 |
| 573 | Physical organic chemistry | 3 | 52 | 1,433 | 1,525 |
| 573 | Energy metabolism | 4 | 52 | 480 | 732 |
| 573 | Neuroplasticity | 1 | 52 | 513 | 444 |
| 573 | DNS | 1 | 52 | 819 | 637 |
| 573 | neuronal plasticity | 1 | 52 | 235 | 269 |
| 573 | energy development | 3 | 52 | 843 | 1,233 |
| 573 | DNA | 1 | 52 | 993 | 707 |
| 581 | Comparative Physiology | 2 | 51 | 889 | 967 |
| 581 | epidemiologic methods | 1 | 51 | 351 | 172 |
| 581 | chronic disease | 6 | 51 | 184 | 382 |
| 584 | biopolymers | 3 | 50 | 1,114 | 1,378 |
| 585 | Photography | 18 | 49 | 461 | 486 |
| 585 | Radiopharmaceuticals | 6 | 49 | 171 | 223 |
| 585 | Cardiac electrophysiology | 3 | 49 | 230 | 386 |
| 585 | arrhythmia | 3 | 49 | 230 | 386 |
| 589 | Mechatronics | 1 | 48 | 1,429 | 1,137 |
| 589 | Maternal health services | 2 | 48 | 476 | 519 |
| 589 | Enzyme inhibitors | 2 | 48 | 535 | 588 |
| 589 | Child welfare | 2 | 48 | 1,324 | 1,229 |
| 589 | Optical materials | 2 | 48 | 2,626 | 2,747 |
| 589 | Archaea | 1 | 48 | 16 | 32 |
| 595 | medical errors | 5 | 47 | 20 | 79 |
| 595 | Transition to adult care | 5 | 47 | 2 | 2 |
| 595 | Geriatric Oncology | 4 | 47 | 421 | 748 |
| 595 | safety | 5 | 47 | 23 | 105 |
| 595 | Bioelectronics | 2 | 47 | 1,267 | 1,806 |
| 600 | Education | 4 | 46 | 3,058 | 3,208 |
| 600 | Biofeedback | 1 | 46 | 240 | 234 |
| 600 | Body Image | 1 | 46 | 378 | 437 |
| 603 | Demography | 2 | 45 | 779 | 844 |
| 603 | Neurovirology | 3 | 45 | 209 | 324 |
| 603 | Pituitary gland | 1 | 45 | 309 | 261 |
| 603 | Population | 2 | 45 | 1,040 | 1,157 |
| 603 | child abuse | 1 | 45 | 1,231 | 1,109 |
| 608 | Biomolecules | 2 | 44 | 579 | 773 |
| 608 | kidney | 1 | 44 | 125 | 129 |
| 610 | Environmental Engineering | 2 | 43 | 3,873 | 4,091 |
| 610 | Environmental Policy | 2 | 43 | 3,537 | 4,000 |
| 610 | Environmental Law | 2 | 43 | 1,243 | 1,756 |
| 610 | Mental Health | 7 | 43 | 966 | 1,765 |
| 610 | environmental protection | 2 | 43 | 3,757 | 4,067 |
| 610 | Environmental monitoring | 2 | 43 | 3,858 | 4,250 |
| 610 | Algal blooms | 1 | 43 | 477 | 508 |
| 610 | Cyanobacteria | 1 | 43 | 477 | 508 |
| 610 | microalgae | 1 | 43 | 477 | 508 |
| 619 | Clinical Trials | 3 | 42 | 424 | 523 |
| 619 | Catalysis | 2 | 42 | 3,196 | 3,382 |
| 619 | Teratology | 2 | 42 | 317 | 386 |
| 619 | Energy Policy | 1 | 42 | 3,382 | 3,358 |
| 619 | Solid State Physics | 9 | 42 | 2,317 | 3,340 |
| 619 | abnormalities | 2 | 42 | 191 | 259 |
| 625 | Social behavior | 3 | 41 | 1,134 | 1,453 |
| 625 | biochemical markers | 4 | 41 | 492 | 843 |
| 627 | air quality management | 1 | 40 | 983 | 879 |
| 627 | Bipolar Disorder | 2 | 40 | 381 | 493 |
| 627 | indoor air pollution | 1 | 40 | 698 | 603 |
| 627 | Ventilation | 1 | 40 | 920 | 708 |
| 627 | Sick building syndrome | 1 | 40 | 698 | 603 |
| 627 | sports injuries | 4 | 40 | 445 | 690 |
| 633 | Biomarkers | 3 | 39 | 397 | 580 |
| 634 | Chronobiology | 2 | 38 | 640 | 683 |
| 634 | Circadian rhythms | 2 | 38 | 478 | 612 |
| 634 | biological clocks | 2 | 38 | 640 | 683 |
| 634 | circadian rhythm | 2 | 38 | 640 | 683 |
| 634 | biological rhythms | 2 | 38 | 614 | 671 |
| 639 | Marriage | 4 | 37 | 424 | 705 |
| 639 | paraphilias | 4 | 37 | 127 | 325 |
| 639 | Marriage counseling | 4 | 37 | 246 | 489 |
| 642 | Molecular Genetics | 2 | 36 | 1,817 | 2,333 |
| 642 | human development | 1 | 36 | 1,245 | 1,196 |
| 644 | Speech Perception | 1 | 35 | 572 | 560 |
| 644 | auditory perception | 1 | 35 | 684 | 644 |
| 644 | Electrochemistry | 4 | 35 | 2,967 | 3,414 |
| 644 | Animal welfare | 1 | 35 | 523 | 470 |
| 644 | Communication | 1 | 35 | 2,941 | 2,403 |
| 644 | Oral communication | 1 | 35 | 770 | 611 |
| 644 | Adipose tissue | 2 | 35 | 81 | 136 |
| 651 | Holistic Health | 5 | 34 | 302 | 630 |
| 651 | Parasites | 3 | 34 | 1,522 | 1,910 |
| 653 | breastfeeding | 2 | 33 | 602 | 766 |
| 653 | Learning | 3 | 33 | 1,173 | 1,622 |
| 655 | Pediatric Rheumatology | 5 | 32 | 158 | 316 |
| 655 | Evidence-Based Medicine | 3 | 32 | 680 | 1,148 |
| 655 | Communication in politics | 1 | 32 | 523 | 341 |
| 655 | Brain damage | 2 | 32 | 454 | 622 |
| 659 | Evolutionary Genetics | 2 | 31 | 842 | 1,125 |
| 659 | Molecular Epidemiology | 2 | 31 | 842 | 1,125 |
| 659 | Labor Economics | 1 | 31 | 839 | 671 |
| 659 | Food Microbiology | 2 | 31 | 1,418 | 2,004 |
| 659 | food technology | 2 | 31 | 2,772 | 3,298 |
| 659 | Diagnosis | 4 | 31 | 302 | 595 |
| 659 | extraterrestrial environment | 1 | 31 | 952 | 784 |
| 659 | sex crimes | 3 | 31 | 624 | 945 |
| 659 | astronomical phenomena | 1 | 31 | 877 | 731 |
| 668 | Social Psychology | 3 | 30 | 2,093 | 2,751 |
| 668 | eugenics | 2 | 30 | 665 | 858 |
| 670 | Developmental Toxicology | 2 | 29 | 57 | 123 |
| 670 | embryonic development | 1 | 29 | 663 | 701 |
| 670 | teratogens | 2 | 29 | 57 | 123 |
| 673 | Forensic Genetics | 1 | 28 | 423 | 443 |
| 673 | Agricultural Chemistry | 2 | 28 | 2,428 | 2,911 |
| 673 | Regenerative Medicine | 1 | 28 | 314 | 280 |
| 673 | Analytical Toxicology | 3 | 28 | 191 | 395 |
| 673 | Laser therapy | 3 | 28 | 429 | 597 |
| 673 | Pharmacy management | 1 | 28 | 486 | 429 |
| 673 | air quality | 1 | 28 | 565 | 535 |
| 673 | dissociative disorders | 1 | 28 | 229 | 248 |
| 681 | Geophysics | 1 | 27 | 3,790 | 3,636 |
| 681 | Lymphatic system | 2 | 27 | 104 | 160 |
| 681 | Family | 2 | 27 | 1,163 | 1,348 |
| 681 | Ethnology | 2 | 27 | 1,749 | 1,729 |
| 681 | Osteoporosis | 2 | 27 | 430 | 603 |
| 686 | Plant Genetics | 1 | 26 | 1,048 | 1,175 |
| 687 | Respiratory Infections | 1 | 25 | 528 | 543 |
| 687 | Fungi | 1 | 25 | 1,434 | 1,517 |
| 687 | Coronary heart disease | 3 | 25 | 207 | 296 |
| 687 | Influenza | 1 | 25 | 424 | 454 |
| 691 | Pharmacogenomics | 2 | 24 | 350 | 574 |
| 691 | economic forecasting | 1 | 24 | 599 | 615 |
| 691 | Forecasting | 1 | 24 | 962 | 884 |
| 691 | Cellular senescence | 1 | 24 | 619 | 948 |
| 691 | allied health | 3 | 24 | 262 | 479 |
| 696 | Data Mining | 2 | 23 | 1,336 | 1,689 |
| 696 | Pediatric Endocrinology | 3 | 23 | 323 | 414 |
| 696 | Power Electronics | 1 | 23 | 1,390 | 1,451 |
| 696 | actuators | 2 | 23 | 2,323 | 2,961 |
| 696 | Probiotics | 2 | 23 | 252 | 535 |
| 696 | Metabolic disorders in children | 3 | 23 | 290 | 384 |
| 696 | transducers | 2 | 23 | 2,323 | 2,961 |
| 703 | Well-being | 1 | 22 | 333 | 347 |
| 703 | Drug discovery | 2 | 22 | 306 | 531 |
| 705 | Cognitive Psychology | 2 | 21 | 570 | 641 |
| 705 | Comparative Psychology | 1 | 21 | 252 | 351 |
| 705 | War | 1 | 21 | 402 | 367 |
| 705 | industrial hygiene | 3 | 21 | 1,017 | 1,345 |
| 705 | Lymphoma | 2 | 21 | 378 | 431 |
| 705 | Multiple Myeloma | 2 | 21 | 373 | 426 |
| 705 | warfare | 1 | 21 | 495 | 590 |
| 705 | refugees | 1 | 21 | 436 | 446 |
| 705 | lasers | 1 | 21 | 2,786 | 2,574 |
| 714 | Mechanical Engineering | 3 | 20 | 2,323 | 2,699 |
| 714 | Wound healing | 1 | 20 | 52 | 122 |
| 714 | Electrocardiography | 3 | 20 | 304 | 452 |
| 714 | wound care | 1 | 20 | 52 | 122 |
| 714 | Fibrosis | 1 | 20 | 52 | 122 |
| 719 | Metallurgy | 1 | 19 | 2,746 | 2,557 |
| 719 | nursing ethics | 2 | 19 | 310 | 644 |
| 719 | Cell cycle | 1 | 19 | 507 | 630 |
| 719 | cell proliferation | 1 | 19 | 542 | 658 |
| 723 | Clinical Psychology | 2 | 18 | 1,285 | 1,748 |
| 723 | General Surgery | 4 | 18 | 406 | 708 |
| 723 | Nutritional support | 1 | 18 | 296 | 413 |
| 723 | Health insurance | 1 | 18 | 724 | 748 |
| 723 | Peptide | 1 | 18 | 319 | 324 |
| 723 | motor skills | 1 | 18 | 417 | 435 |
| 729 | Quality Control | 1 | 17 | 2,623 | 2,884 |
| 729 | Computer-Aided Design | 2 | 17 | 1,457 | 1,896 |
| 729 | Microfabrication | 2 | 17 | 451 | 677 |
| 729 | Feasibility studies | 2 | 17 | 333 | 391 |
| 729 | Accreditation | 1 | 17 | 146 | 113 |
| 729 | DNA repair | 1 | 17 | 464 | 606 |
| 729 | Insects | 1 | 17 | 2,054 | 1,999 |
| 729 | Entomology | 1 | 17 | 2,981 | 2,824 |
| 737 | Microbial Biotechnology | 1 | 16 | 1,701 | 1,998 |
| 737 | Public opinion | 1 | 16 | 690 | 812 |
| 737 | Synthetic biology | 1 | 16 | 524 | 654 |
| 740 | Philosophy | 3 | 15 | 1,462 | 1,393 |
| 740 | Cost of illness | 2 | 15 | 68 | 140 |
| 740 | Cross-Cultural Studies | 1 | 15 | 1,279 | 1,413 |
| 740 | Metabolic syndrome | 2 | 15 | 358 | 747 |
| 740 | Plastics | 1 | 15 | 2,353 | 2,434 |
| 740 | Africa | 2 | 15 | 1,870 | 2,113 |
| 740 | cross-cultural comparison | 1 | 15 | 937 | 1,054 |
| 740 | phototherapy | 2 | 15 | 146 | 190 |
| 748 | Information Technology | 3 | 14 | 2,466 | 3,590 |
| 748 | Public Health Administration | 2 | 14 | 540 | 682 |
| 748 | Oral Pathology | 2 | 14 | 104 | 285 |
| 748 | Electrochemical Analysis | 1 | 14 | 2,160 | 2,411 |
| 748 | data collection | 1 | 14 | 458 | 528 |
| 748 | China | 3 | 14 | 2,686 | 4,007 |
| 748 | violence | 1 | 14 | 1,495 | 1,723 |
| 748 | women | 2 | 14 | 1,106 | 1,317 |
| 748 | traffic safety | 1 | 14 | 546 | 696 |
| 748 | Liquid chromatography | 1 | 14 | 903 | 846 |
| 758 | Engineering Mathematics | 1 | 13 | 2,704 | 2,562 |
| 758 | Hematopoiesis | 3 | 13 | 41 | 136 |
| 758 | Engineering Ethics | 2 | 13 | 259 | 558 |
| 758 | Educational Technology | 2 | 13 | 1,994 | 2,948 |
| 758 | Human-Computer Interaction | 1 | 13 | 2,344 | 2,662 |
| 758 | Virtual reality | 1 | 13 | 760 | 887 |
| 758 | Chromosome abnormalities | 4 | 13 | 33 | 28 |
| 758 | Biogeochemistry | 1 | 13 | 1,504 | 1,947 |
| 758 | adolescence | 1 | 13 | 1,456 | 1,694 |
| 758 | touch | 1 | 13 | 210 | 272 |
| 758 | Professional ethics | 2 | 13 | 373 | 768 |
| 758 | Egypt | 2 | 13 | 745 | 1,492 |
| 770 | Electrical Engineering | 1 | 12 | 3,819 | 3,522 |
| 770 | Genetic Counseling | 1 | 12 | 345 | 426 |
| 770 | health workforce | 1 | 12 | 357 | 634 |
| 770 | Herbal medicine | 1 | 12 | 1,254 | 1,725 |
| 770 | Qualitative Research | 2 | 12 | 637 | 1,045 |
| 770 | Physical fitness | 1 | 12 | 1,541 | 1,819 |
| 770 | machinery | 2 | 12 | 1,002 | 1,424 |
| 770 | disease vectors | 1 | 12 | 1,468 | 1,889 |
| 770 | musculoskeletal system | 1 | 12 | 274 | 390 |
| 770 | health services | 1 | 12 | 1,631 | 1,922 |
| 770 | optical devices | 1 | 12 | 827 | 985 |
| 781 | Microelectronics | 1 | 11 | 2,209 | 2,511 |
| 781 | Electromagnetism | 3 | 11 | 1,010 | 1,631 |
| 781 | Radiochemistry | 1 | 11 | 1,539 | 1,532 |
| 781 | health behavior | 1 | 11 | 1,363 | 1,711 |
| 781 | Drug targeting | 1 | 11 | 593 | 917 |
| 781 | Molecular recognition | 1 | 11 | 457 | 650 |
| 781 | Stroke | 1 | 11 | 25 | 67 |
| 781 | acupuncture | 2 | 11 | 277 | 352 |
| 781 | Health promotion | 2 | 11 | 1,310 | 1,934 |
| 790 | Electromagnetic waves | 2 | 10 | 405 | 691 |
| 790 | Religion and Psychology | 2 | 10 | 724 | 1,173 |
| 790 | Radio waves | 2 | 10 | 968 | 1,451 |
| 790 | Microwaves | 2 | 10 | 1,436 | 1,820 |
| 794 | Computer Graphics | 3 | 9 | 1,648 | 2,667 |
| 794 | Databases | 1 | 9 | 587 | 731 |
| 794 | Biochemical Genetics | 1 | 9 | 877 | 921 |
| 794 | Animal genetics | 1 | 9 | 864 | 1,164 |
| 794 | big data | 1 | 9 | 1,237 | 1,520 |
| 794 | DNA methylation | 2 | 9 | 339 | 730 |
| 794 | Soviet Union | 1 | 9 | 1,273 | 1,198 |
| 801 | Economics | 1 | 8 | 4,487 | 4,705 |
| 801 | Pediatric Gastroenterology | 2 | 8 | 46 | 35 |
| 801 | Econometrics | 1 | 8 | 1,954 | 2,079 |
| 801 | Serology | 1 | 8 | 882 | 1,226 |
| 801 | Physical Chemistry | 1 | 8 | 2,775 | 3,211 |
| 801 | Crystallization | 2 | 8 | 614 | 894 |
| 801 | Neural circuitry | 1 | 8 | 2,760 | 3,261 |
| 801 | biobanks | 2 | 8 | 157 | 389 |
| 801 | Crystallography | 2 | 8 | 1,821 | 2,076 |
| 801 | Bioprinting | 1 | 8 | 106 | 240 |
| 801 | X-ray crystallography | 2 | 8 | 604 | 892 |
| 801 | Ion channels | 1 | 8 | 217 | 347 |
| 801 | Cerebellum | 2 | 8 | 347 | 698 |
| 801 | pharmaceutical industry | 1 | 8 | 975 | 1,320 |
| 801 | Aggression | 1 | 8 | 813 | 1,174 |
| 801 | alcohol | 1 | 8 | 162 | 229 |
| 801 | Cerebellar ataxia | 2 | 8 | 346 | 698 |
| 818 | Anthropological Linguistics | 3 | 7 | 239 | 409 |
| 818 | Gender Studies | 1 | 7 | 916 | 1,223 |
| 818 | Dance therapy | 1 | 7 | 348 | 504 |
| 818 | Feminism | 1 | 7 | 1,006 | 1,160 |
| 818 | urban health | 1 | 7 | 459 | 761 |
| 818 | sexual orientation | 1 | 7 | 302 | 463 |
| 818 | Gender identity | 1 | 7 | 580 | 677 |
| 818 | sadness | 1 | 7 | 509 | 786 |
| 818 | Chromosomes | 1 | 7 | 1,249 | 1,680 |
| 818 | computer networks | 1 | 7 | 3,071 | 3,585 |
| 818 | death | 1 | 7 | 645 | 884 |
| 818 | Suicide | 1 | 7 | 909 | 1,307 |
| 818 | antisocial personality disorder | 1 | 7 | 509 | 786 |
| 831 | Pharmacognosy | 1 | 6 | 2,529 | 3,264 |
| 831 | Healing | 1 | 6 | 282 | 437 |
| 831 | Food additives | 1 | 6 | 1,690 | 2,332 |
| 831 | Soft Condensed Matter | 1 | 6 | 1,513 | 1,925 |
| 831 | ovary | 2 | 6 | 254 | 679 |
| 831 | natural products | 1 | 6 | 2,553 | 3,020 |
| 831 | Sociobiology | 1 | 6 | 414 | 578 |
| 838 | Structural dynamics | 1 | 5 | 1,358 | 1,856 |
| 838 | Biological Systems | 1 | 5 | 982 | 1,449 |
| 838 | Regeneration | 1 | 5 | 139 | 285 |
| 838 | vibration | 1 | 5 | 1,659 | 2,108 |
| 838 | Neuroanatomy | 1 | 5 | 483 | 790 |
| 838 | Social Change | 1 | 5 | 1,667 | 2,357 |
| 838 | families | 1 | 5 | 1,378 | 1,761 |
| 838 | Social work | 1 | 5 | 2,063 | 2,550 |
| 838 | wildlife diseases | 1 | 5 | 337 | 531 |
| 847 | Phenomenology | 1 | 4 | 485 | 513 |
| 847 | Veterinary Pathology | 1 | 4 | 564 | 803 |
| 847 | Philosophy of Mind | 1 | 4 | 511 | 680 |
| 847 | Animal breeding | 1 | 4 | 1,119 | 1,580 |
| 847 | Integrative Medicine | 1 | 4 | 535 | 835 |
| 847 | Mitochondria | 1 | 4 | 510 | 869 |
| 847 | personality | 1 | 4 | 2,043 | 2,703 |
| 847 | Communication Disorders | 2 | 4 | 397 | 730 |
| 847 | Developing countries | 1 | 4 | 3,272 | 4,109 |
| 847 | Breeding | 1 | 4 | 1,667 | 2,289 |
| 857 | speech therapy | 1 | 3 | 622 | 853 |
| 857 | Happiness | 1 | 3 | 871 | 1,448 |
| 857 | Microfluidics | 1 | 3 | 424 | 713 |
| 857 | Japan | 1 | 3 | 2,642 | 3,306 |
| 857 | North America | 1 | 3 | 1,361 | 1,867 |
| 862 | Systems Engineering | 1 | 2 | 3,025 | 3,809 |
| 862 | Early Childhood Education | 1 | 2 | 986 | 1,438 |
| 862 | Immunohematology | 2 | 2 | 73 | 213 |
| 862 | Wireless Sensor Networks | 1 | 2 | 60 | 143 |
| 862 | Atherosclerosis | 1 | 2 | 279 | 501 |
| 862 | orphan drugs | 2 | 2 | 81 | 239 |
| 862 | Blood group antigens | 2 | 2 | 68 | 203 |
| 862 | Genetic markers | 1 | 2 | 532 | 951 |
| 862 | Telecommunication | 1 | 2 | 3,326 | 4,082 |
| 862 | Information society | 1 | 2 | 356 | 736 |
| 862 | Longevity | 1 | 2 | 349 | 689 |
| 862 | Detectors | 1 | 2 | 2,192 | 2,981 |
| 862 | Autism | 1 | 2 | 1,008 | 1,560 |
| 875 | Occupational Health | 1 | 1 | 1,696 | 2,506 |
| 875 | Neonatal Nursing | 1 | 1 | 273 | 510 |
| 875 | Radiation Protection | 1 | 1 | 1,039 | 1,448 |
| 875 | Neonatal intensive care | 1 | 1 | 228 | 444 |
| 875 | Health Physics | 1 | 1 | 337 | 593 |
| 875 | Genetic Research | 1 | 1 | 336 | 677 |
| 875 | radiation monitoring | 1 | 1 | 938 | 1,352 |
| 875 | Solid State Chemistry | 1 | 1 | 3,074 | 3,860 |
| 875 | Organometallic chemistry | 1 | 1 | 2,810 | 3,606 |
| 875 | Learning disabilities | 1 | 1 | 1,257 | 1,885 |
| 875 | Bioinorganic chemistry | 1 | 1 | 1,927 | 2,617 |
| 875 | Radiotherapy | 4 | 1 | 242 | 451 |
| 875 | Adhesion | 1 | 1 | 1,202 | 1,754 |
| 875 | Magnetic Materials | 1 | 1 | 2,006 | 2,581 |
| 875 | Zeolites | 1 | 1 | 1,419 | 2,034 |
| 875 | Electromagnetic fields | 1 | 1 | 729 | 1,084 |
| 875 | adhesives | 1 | 1 | 1,266 | 1,818 |
| 875 | Intellectual disability | 1 | 1 | 1,202 | 1,845 |
| 875 | information | 1 | 1 | 127 | 215 |
| 875 | Muscle contraction | 1 | 1 | 700 | 1,056 |
| 895 | Acoustics | 1 | 0 | 583 | 865 |
| 895 | Mathematical Physics | 1 | 0 | 3,549 | 4,311 |
| 895 | History of Medicine | 1 | 0 | 748 | 987 |
| 895 | Acoustic holography | 1 | 0 | 160 | 210 |
| 895 | Preoperative Care | 1 | 0 | 158 | 395 |
| 895 | Genetic translocation | 1 | 0 | 361 | 672 |
| 895 | perioperative care | 1 | 0 | 158 | 391 |
| 895 | mental health promotion | 1 | 0 | 293 | 581 |
| 895 | Ultrasonics | 1 | 0 | 1,788 | 2,577 |
| 895 | Holography | 1 | 0 | 160 | 210 |
| 895 | Acoustic imaging | 1 | 0 | 160 | 210 |
| 895 | Hypertension in pregnancy | 1 | 0 | 320 | 629 |
| 895 | Ultrasonic Imaging | 1 | 0 | 842 | 1,359 |
| 895 | Liposomes | 1 | 0 | 949 | 1,503 |
| 895 | Lipid bilayers | 1 | 0 | 790 | 1,214 |
| 895 | plasmids | 1 | 0 | 361 | 672 |