| 1 | Medicine | 566 | 42.3K | 525 | 361 |
| 2 | Psychiatry | 459 | 32.6K | 152 | 112 |
| 3 | Biology | 368 | 31.3K | 642 | 590 |
| 4 | Science | 309 | 30.1K | 768 | 611 |
| 5 | Neurology | 682 | 27.7K | 242 | 305 |
| 6 | Molecular Biology | 366 | 23.5K | 628 | 497 |
| 7 | Biochemistry | 585 | 22.6K | 620 | 582 |
| 8 | Physics | 114 | 21.7K | 1,718 | 837 |
| 9 | Surgery | 55 | 20.4K | 282 | 116 |
| 10 | Human genetics | 40 | 19.4K | 458 | 248 |
| 11 | Natural history | 53 | 18.0K | 631 | 483 |
| 12 | Psychophysiology | 177 | 16.3K | 280 | 151 |
| 13 | Mental Disorders | 235 | 15.8K | 140 | 118 |
| 14 | Psychopharmacology | 78 | 12.2K | 164 | 64 |
| 15 | Cytology | 197 | 12.0K | 406 | 417 |
| 16 | Pediatrics | 340 | 11.0K | 87 | 135 |
| 17 | Mental illness | 152 | 10.7K | 111 | 100 |
| 18 | Medical genetics | 189 | 10.5K | 208 | 232 |
| 19 | Cell Biology | 150 | 8.9K | 443 | 504 |
| 20 | Physiology | 159 | 8.3K | 457 | 362 |
| 21 | Biophysics | 247 | 7.7K | 562 | 572 |
| 22 | Research | 251 | 7.6K | 776 | 806 |
| 23 | Neuropsychiatry | 135 | 7.1K | 13 | 10 |
| 24 | Cardiovascular system | 84 | 7.0K | 209 | 227 |
| 25 | Chemistry | 88 | 5.9K | 2,094 | 1,511 |
| 26 | Brain | 138 | 5.8K | 293 | 303 |
| 27 | Neurophysiology | 141 | 5.5K | 327 | 401 |
| 28 | Behavior | 106 | 5.4K | 391 | 388 |
| 29 | Biomechanics | 33 | 4.8K | 276 | 94 |
| 30 | Attention | 130 | 4.7K | 131 | 116 |
| 31 | Public Health | 119 | 4.3K | 654 | 612 |
| 32 | Endocrinology | 122 | 4.3K | 364 | 455 |
| 33 | Virology | 99 | 4.1K | 393 | 569 |
| 34 | human behavior | 62 | 4.1K | 395 | 387 |
| 35 | Nervous system | 70 | 4.0K | 364 | 312 |
| 36 | Urology | 157 | 4.0K | 112 | 149 |
| 37 | Hematology | 118 | 4.0K | 343 | 382 |
| 38 | Environment | 62 | 4.0K | 979 | 968 |
| 39 | Hypertension | 51 | 3.8K | 311 | 321 |
| 40 | Metabolism | 91 | 3.7K | 379 | 464 |
| 41 | Genetics | 76 | 3.7K | 576 | 624 |
| 42 | Animal Behavior | 33 | 3.5K | 516 | 303 |
| 43 | Pharmacology | 186 | 3.5K | 576 | 802 |
| 44 | cell physiology | 59 | 3.5K | 199 | 210 |
| 45 | Child psychology | 51 | 3.4K | 278 | 245 |
| 46 | Environmental Health | 56 | 3.3K | 1,136 | 894 |
| 47 | Immunology | 101 | 3.2K | 456 | 586 |
| 48 | Developmental Biology | 66 | 3.2K | 314 | 361 |
| 49 | Diabetes | 66 | 3.2K | 301 | 343 |
| 50 | Nutrition | 80 | 3.1K | 657 | 624 |
| 51 | Microbiology | 68 | 2.8K | 1,290 | 1,274 |
| 52 | Metabolic diseases | 56 | 2.8K | 418 | 456 |
| 53 | Diabetes mellitus | 59 | 2.8K | 295 | 344 |
| 54 | Pediatric Neurology | 21 | 2.8K | 283 | 194 |
| 55 | Medical Oncology | 55 | 2.7K | 272 | 233 |
| 56 | Health Policy | 61 | 2.7K | 333 | 236 |
| 57 | Schizophrenia | 59 | 2.7K | 132 | 136 |
| 58 | Ethology | 16 | 2.6K | 615 | 301 |
| 59 | Radiobiology | 46 | 2.5K | 221 | 171 |
| 60 | Neuropsychology | 85 | 2.5K | 293 | 342 |
| 61 | Anatomy | 60 | 2.5K | 322 | 293 |
| 62 | Neurochemistry | 67 | 2.3K | 425 | 454 |
| 63 | viruses | 58 | 2.3K | 234 | 300 |
| 64 | Environmental Toxicology | 9 | 2.3K | 1,396 | 348 |
| 65 | Pathology | 67 | 2.2K | 358 | 399 |
| 66 | Toxicology | 92 | 2.2K | 705 | 892 |
| 67 | Spine | 24 | 2.2K | 166 | 96 |
| 68 | Critical Care | 41 | 2.1K | 290 | 355 |
| 69 | Critical Care Medicine | 40 | 2.1K | 294 | 357 |
| 70 | Psychology | 108 | 2.0K | 704 | 849 |
| 71 | Child Development | 29 | 1.9K | 523 | 365 |
| 72 | Cancer | 70 | 1.9K | 565 | 771 |
| 73 | Child | 71 | 1.8K | 301 | 337 |
| 74 | medical education | 74 | 1.7K | 219 | 240 |
| 75 | Ecology | 23 | 1.7K | 2,397 | 1,833 |
| 76 | diseases | 2 | 1.7K | 410 | 221 |
| 76 | Disease | 2 | 1.7K | 386 | 221 |
| 78 | Pollution | 54 | 1.6K | 1,280 | 1,619 |
| 79 | Ophthalmology | 56 | 1.6K | 322 | 361 |
| 80 | Embryology | 36 | 1.6K | 381 | 391 |
| 80 | Perception | 62 | 1.6K | 300 | 359 |
| 82 | Developmental Disabilities | 23 | 1.5K | 270 | 195 |
| 83 | Cytoskeleton | 46 | 1.5K | 9 | 15 |
| 84 | Medical innovations | 10 | 1.5K | 401 | 284 |
| 84 | drug development | 10 | 1.5K | 414 | 241 |
| 86 | Biotechnology | 16 | 1.5K | 2,485 | 1,637 |
| 87 | Biocompatible Materials | 31 | 1.4K | 1,203 | 1,219 |
| 88 | Visual Perception | 59 | 1.4K | 248 | 317 |
| 88 | Memory | 59 | 1.4K | 296 | 399 |
| 90 | Membranes | 43 | 1.4K | 361 | 489 |
| 91 | Obstetrics | 59 | 1.4K | 397 | 440 |
| 92 | Health Education | 59 | 1.4K | 279 | 299 |
| 93 | Orthopedics | 68 | 1.4K | 211 | 278 |
| 94 | psychotherapy | 36 | 1.4K | 300 | 317 |
| 95 | Immunopathology | 35 | 1.3K | 272 | 251 |
| 96 | behavioral medicine | 28 | 1.3K | 300 | 329 |
| 97 | Vaccines | 49 | 1.3K | 258 | 308 |
| 98 | Medical Physics | 76 | 1.3K | 241 | 395 |
| 99 | Bacteriology | 25 | 1.2K | 561 | 562 |
| 100 | Water quality management | 61 | 1.2K | 165 | 222 |
| 101 | Cell differentiation | 31 | 1.2K | 411 | 527 |
| 102 | Epidemiology | 27 | 1.2K | 1,061 | 810 |
| 103 | Neurobiology | 32 | 1.2K | 469 | 561 |
| 104 | Emergency Medicine | 113 | 1.2K | 87 | 178 |
| 105 | Obesity | 33 | 1.2K | 472 | 516 |
| 106 | Oncogenes | 22 | 1.2K | 328 | 396 |
| 107 | Bioengineering | 13 | 1.2K | 2,018 | 1,343 |
| 108 | North America | 61 | 1.2K | 57 | 63 |
| 109 | United States | 95 | 1.2K | 716 | 1,137 |
| 110 | Geriatrics | 69 | 1.2K | 439 | 614 |
| 111 | Immunity | 18 | 1.1K | 613 | 691 |
| 112 | nucleic acids | 11 | 1.1K | 820 | 617 |
| 113 | Respiration | 27 | 1.1K | 401 | 387 |
| 114 | Clinical Immunology | 36 | 1.1K | 208 | 236 |
| 115 | Reservoirs | 47 | 1.0K | 4 | 2 |
| 116 | Amyotrophic Lateral Sclerosis | 17 | 1.0K | 45 | 23 |
| 117 | child behavior | 8 | 1.0K | 195 | 77 |
| 118 | Environmental Engineering | 39 | 998 | 903 | 1,141 |
| 119 | Pharmaceutical Chemistry | 36 | 982 | 1,043 | 1,105 |
| 120 | Dermatology | 31 | 980 | 439 | 398 |
| 121 | Substance Abuse | 29 | 968 | 368 | 315 |
| 122 | Hydrology | 57 | 957 | 402 | 667 |
| 123 | drug therapy | 72 | 956 | 334 | 577 |
| 124 | Adolescent | 43 | 938 | 387 | 461 |
| 125 | fertility | 34 | 936 | 205 | 292 |
| 126 | Infertility | 33 | 929 | 193 | 279 |
| 127 | Nanotechnology | 15 | 914 | 2,265 | 1,809 |
| 127 | Morphology | 14 | 914 | 324 | 111 |
| 129 | Health | 22 | 910 | 643 | 485 |
| 130 | Clinical Chemistry | 34 | 903 | 685 | 805 |
| 131 | Biomedical Engineering | 43 | 901 | 1,283 | 1,560 |
| 132 | Rheumatology | 13 | 876 | 477 | 361 |
| 133 | Clinical Psychology | 17 | 846 | 486 | 427 |
| 134 | Oncology | 33 | 831 | 469 | 1,002 |
| 135 | cell interaction | 15 | 809 | 351 | 291 |
| 136 | rehabilitation | 37 | 797 | 441 | 592 |
| 137 | environmental pollution | 20 | 783 | 1,799 | 1,819 |
| 138 | Growth | 16 | 780 | 429 | 499 |
| 139 | Therapeutics | 36 | 779 | 380 | 542 |
| 140 | Neurons | 8 | 738 | 330 | 482 |
| 141 | Medical Technology | 19 | 737 | 447 | 360 |
| 142 | Aging | 30 | 734 | 737 | 816 |
| 143 | Neuromuscular diseases | 25 | 724 | 123 | 155 |
| 143 | Muscles | 25 | 724 | 178 | 253 |
| 145 | Bioenergetics | 21 | 723 | 215 | 275 |
| 145 | Energy metabolism | 21 | 723 | 171 | 237 |
| 147 | alcoholism | 22 | 714 | 449 | 452 |
| 148 | Immunotherapy | 24 | 712 | 489 | 672 |
| 149 | Histology | 29 | 701 | 503 | 626 |
| 149 | Intellectual disability | 24 | 701 | 203 | 209 |
| 151 | Chronic diseases | 9 | 693 | 340 | 286 |
| 152 | Engineering | 33 | 671 | 1,266 | 1,203 |
| 153 | health behavior | 10 | 664 | 430 | 246 |
| 154 | Digestive system diseases | 21 | 652 | 274 | 251 |
| 155 | Oceanography | 14 | 641 | 795 | 653 |
| 155 | Biochemical Engineering | 5 | 641 | 2,393 | 1,701 |
| 157 | Physical Therapy | 44 | 634 | 206 | 449 |
| 158 | Host-parasite interactions | 9 | 616 | 596 | 619 |
| 159 | drug addiction | 12 | 612 | 490 | 412 |
| 160 | Diagnostic Imaging | 17 | 610 | 653 | 574 |
| 161 | United Kingdom | 15 | 608 | 577 | 554 |
| 162 | Inflammation | 6 | 600 | 707 | 419 |
| 163 | Otolaryngology | 29 | 594 | 104 | 138 |
| 164 | histological techniques | 18 | 591 | 181 | 267 |
| 165 | Research Design | 11 | 587 | 516 | 386 |
| 166 | Synaptic Transmission | 9 | 572 | 214 | 119 |
| 167 | Orthopedic Surgery | 30 | 557 | 133 | 210 |
| 167 | Allergy | 13 | 557 | 451 | 584 |
| 169 | Vision | 11 | 551 | 311 | 280 |
| 170 | Water pollution | 14 | 547 | 1,292 | 1,292 |
| 171 | gene therapy | 12 | 545 | 437 | 420 |
| 171 | arthritis | 14 | 545 | 472 | 530 |
| 171 | pain | 13 | 545 | 560 | 554 |
| 174 | Bioethics | 41 | 540 | 127 | 176 |
| 175 | Audiology | 15 | 538 | 301 | 229 |
| 175 | Social behavior | 19 | 538 | 398 | 472 |
| 177 | behavior modification | 19 | 536 | 128 | 201 |
| 178 | Bipolar Disorder | 19 | 533 | 88 | 134 |
| 179 | Molecular structure | 9 | 523 | 1,445 | 820 |
| 180 | Genetic therapy | 16 | 521 | 363 | 430 |
| 181 | Cell communication | 5 | 520 | 396 | 203 |
| 182 | Bones | 13 | 516 | 287 | 335 |
| 183 | Autoimmunity | 10 | 510 | 324 | 324 |
| 184 | Genomics | 21 | 503 | 1,032 | 1,232 |
| 185 | Sports Medicine | 53 | 499 | 491 | 885 |
| 186 | Chemotherapy | 34 | 488 | 282 | 447 |
| 187 | Stem cells | 11 | 484 | 657 | 599 |
| 188 | Medical Ethics | 51 | 481 | 141 | 240 |
| 189 | cell movement | 10 | 477 | 75 | 80 |
| 190 | Anxiety Disorders | 7 | 476 | 293 | 290 |
| 190 | Anxiety | 7 | 476 | 291 | 292 |
| 192 | Cytogenetics | 11 | 474 | 625 | 668 |
| 192 | Chromosomes | 6 | 474 | 573 | 358 |
| 194 | Environmental monitoring | 15 | 473 | 1,783 | 1,984 |
| 195 | Signal Transduction | 8 | 465 | 788 | 714 |
| 196 | Psychosomatic Medicine | 19 | 464 | 221 | 324 |
| 197 | Water | 7 | 454 | 1,547 | 1,370 |
| 198 | Virulence | 9 | 449 | 557 | 673 |
| 199 | proteins | 19 | 445 | 735 | 790 |
| 200 | cell membrane | 12 | 413 | 256 | 310 |
| 201 | Developmental Genetics | 8 | 410 | 266 | 342 |
| 202 | Cell death | 8 | 408 | 652 | 685 |
| 203 | Cerebral cortex | 11 | 400 | 442 | 491 |
| 204 | Bone diseases | 4 | 397 | 365 | 265 |
| 205 | Optics | 55 | 392 | 1,097 | 1,620 |
| 206 | Histochemistry | 16 | 390 | 369 | 377 |
| 206 | complementary therapies | 8 | 390 | 914 | 569 |
| 206 | Women's health | 20 | 390 | 320 | 385 |
| 209 | Diagnostic microbiology | 13 | 378 | 453 | 747 |
| 210 | Alternative Medicine | 6 | 376 | 992 | 567 |
| 211 | Molecular Pharmacology | 14 | 375 | 301 | 450 |
| 212 | Electrophysiology | 18 | 374 | 321 | 342 |
| 212 | Great Lakes | 18 | 374 | 59 | 73 |
| 214 | Frontotemporal lobar degeneration | 9 | 373 | 70 | 43 |
| 215 | protein | 12 | 365 | 534 | 513 |
| 216 | Clinical Biochemistry | 13 | 363 | 441 | 458 |
| 217 | sanitation | 8 | 361 | 895 | 1,113 |
| 218 | Autoimmune diseases | 6 | 353 | 379 | 307 |
| 219 | Nutrition physiology | 9 | 352 | 345 | 349 |
| 220 | Brain damage | 8 | 350 | 180 | 138 |
| 221 | Telemedicine | 14 | 345 | 72 | 97 |
| 222 | environmental exposure | 20 | 337 | 570 | 1,007 |
| 223 | Medical Microbiology | 10 | 332 | 1,078 | 1,238 |
| 224 | Music | 11 | 328 | 390 | 248 |
| 224 | voice | 11 | 328 | 181 | 144 |
| 224 | Mental Health Services | 24 | 328 | 308 | 480 |
| 227 | nanoscience | 4 | 326 | 2,352 | 1,695 |
| 228 | Industrial Safety | 3 | 321 | 1,191 | 479 |
| 229 | Leukemia | 12 | 319 | 416 | 544 |
| 230 | Tropical Medicine | 10 | 313 | 891 | 675 |
| 231 | Autism | 13 | 309 | 259 | 391 |
| 232 | Thorax | 8 | 308 | 199 | 229 |
| 233 | Astrocytes | 9 | 304 | 228 | 335 |
| 234 | Bioinorganic chemistry | 5 | 302 | 1,111 | 724 |
| 235 | Gerontology | 25 | 298 | 533 | 768 |
| 236 | Genetic engineering | 8 | 296 | 1,183 | 1,121 |
| 236 | Cell metabolism | 4 | 296 | 527 | 621 |
| 238 | Autoantibodies | 5 | 295 | 380 | 306 |
| 239 | brain mapping | 7 | 288 | 377 | 412 |
| 240 | visualization | 30 | 286 | 367 | 420 |
| 241 | Bacterial infections | 7 | 277 | 432 | 556 |
| 242 | Psychoneuroimmunology | 9 | 276 | 290 | 434 |
| 242 | Neuroimmunology | 9 | 276 | 337 | 476 |
| 242 | cardiac catheterization | 5 | 276 | 433 | 223 |
| 245 | Antioxidants | 5 | 275 | 541 | 559 |
| 245 | Smoking | 7 | 275 | 427 | 429 |
| 245 | Oxidation-reduction | 5 | 275 | 563 | 651 |
| 248 | Radiography | 14 | 272 | 281 | 546 |
| 248 | Nutritional support | 6 | 272 | 85 | 101 |
| 250 | Homeostasis | 2 | 271 | 447 | 587 |
| 250 | Genetic regulation | 10 | 271 | 492 | 660 |
| 252 | Marine Biology | 12 | 269 | 1,301 | 1,434 |
| 252 | Wildlife conservation | 2 | 269 | 1,237 | 791 |
| 254 | Microelectronics | 3 | 268 | 1,569 | 1,090 |
| 254 | Transplantation | 11 | 268 | 462 | 597 |
| 254 | miniaturization | 3 | 268 | 1,696 | 1,198 |
| 257 | Electronics | 13 | 266 | 1,704 | 1,628 |
| 258 | Depression | 5 | 263 | 217 | 281 |
| 259 | Medical Laboratory Science | 14 | 261 | 831 | 1,284 |
| 259 | disease vectors | 5 | 261 | 716 | 499 |
| 261 | Pharmacogenetics | 10 | 259 | 404 | 523 |
| 262 | infection | 11 | 257 | 698 | 902 |
| 263 | Radiology | 29 | 255 | 301 | 534 |
| 264 | Education | 17 | 254 | 1,550 | 1,618 |
| 264 | Cannabis | 1 | 254 | 191 | 23 |
| 264 | cannabinoids | 1 | 254 | 174 | 20 |
| 267 | Hormones | 9 | 252 | 660 | 734 |
| 268 | disabilities | 11 | 250 | 281 | 316 |
| 269 | Geriatric Medicine | 5 | 246 | 85 | 47 |
| 270 | behavior therapy | 17 | 245 | 296 | 466 |
| 271 | Liver diseases | 7 | 244 | 763 | 883 |
| 272 | epilepsy | 6 | 243 | 581 | 442 |
| 273 | Dentistry | 5 | 239 | 539 | 242 |
| 274 | Child welfare | 11 | 232 | 470 | 524 |
| 275 | Sociology | 6 | 226 | 2,101 | 1,562 |
| 276 | calcification | 8 | 225 | 267 | 306 |
| 277 | Learning disabilities | 7 | 224 | 543 | 454 |
| 278 | Humanities | 15 | 220 | 605 | 572 |
| 278 | Hemodynamics | 5 | 220 | 454 | 550 |
| 278 | Speech Disorders | 28 | 220 | 280 | 589 |
| 278 | Health promotion | 16 | 220 | 384 | 584 |
| 282 | Adolescent Psychology | 7 | 219 | 498 | 509 |
| 283 | Image Processing | 5 | 218 | 1,692 | 1,408 |
| 283 | Gene expression regulation | 10 | 218 | 430 | 589 |
| 285 | Computer Vision | 4 | 216 | 981 | 800 |
| 285 | Polymers | 7 | 216 | 2,828 | 2,481 |
| 287 | Endocrine system | 27 | 212 | 127 | 106 |
| 288 | Photochemistry | 1 | 211 | 2,367 | 1,030 |
| 288 | Light | 1 | 211 | 1,296 | 789 |
| 290 | Malaria | 6 | 210 | 404 | 362 |
| 291 | Neurosurgery | 9 | 209 | 502 | 581 |
| 291 | General Surgery | 24 | 209 | 176 | 244 |
| 293 | Behavioral Genetics | 5 | 208 | 160 | 174 |
| 294 | Nanostructured Materials | 5 | 207 | 2,221 | 2,051 |
| 294 | Nanoparticles | 5 | 207 | 1,466 | 1,270 |
| 296 | Geriatric Oncology | 9 | 200 | 231 | 344 |
| 296 | Zoonoses | 3 | 200 | 281 | 152 |
| 298 | Maternal health services | 8 | 199 | 162 | 196 |
| 299 | Nuclear Medicine | 11 | 198 | 420 | 511 |
| 300 | Respiratory system | 9 | 195 | 268 | 368 |
| 300 | Drug discovery | 9 | 195 | 55 | 119 |
| 302 | Antibacterial agents | 8 | 193 | 322 | 440 |
| 303 | Analytical Biochemistry | 9 | 189 | 968 | 1,041 |
| 303 | enzymes | 9 | 189 | 816 | 1,011 |
| 305 | Travel | 19 | 188 | 174 | 376 |
| 305 | Hearing | 27 | 188 | 165 | 378 |
| 307 | Organic Chemistry | 6 | 185 | 2,174 | 1,960 |
| 307 | mycoses | 1 | 185 | 1,119 | 663 |
| 309 | Magnetic Resonance Imaging | 2 | 184 | 481 | 229 |
| 310 | Proteomics | 5 | 183 | 776 | 787 |
| 311 | genome | 9 | 179 | 742 | 1,208 |
| 312 | Public Health Administration | 13 | 178 | 165 | 178 |
| 313 | Neurotransmitters | 3 | 176 | 326 | 288 |
| 314 | Molecular cloning | 6 | 173 | 968 | 926 |
| 314 | Sports | 14 | 173 | 964 | 1,195 |
| 316 | Speech | 19 | 172 | 284 | 626 |
| 317 | Immune system | 3 | 170 | 803 | 828 |
| 318 | Social work | 10 | 169 | 703 | 722 |
| 319 | Oxidative stress | 11 | 167 | 304 | 917 |
| 320 | preventive medicine | 11 | 165 | 524 | 858 |
| 320 | Genetic recombination | 5 | 165 | 1,037 | 939 |
| 320 | Recombinant DNA | 5 | 165 | 1,106 | 1,000 |
| 323 | Infections | 9 | 161 | 557 | 901 |
| 324 | Clinical Trials | 6 | 160 | 274 | 253 |
| 324 | biomedicine | 2 | 160 | 634 | 392 |
| 326 | Electron Microscopy | 2 | 158 | 497 | 207 |
| 327 | Special Education | 6 | 154 | 548 | 445 |
| 327 | Thrombosis | 5 | 154 | 705 | 745 |
| 329 | older people | 23 | 152 | 454 | 772 |
| 330 | Stress | 3 | 151 | 274 | 191 |
| 331 | Forensic Psychiatry | 5 | 148 | 406 | 328 |
| 332 | Botany | 8 | 143 | 2,319 | 2,771 |
| 333 | Radiation | 8 | 141 | 1,333 | 1,332 |
| 334 | Materials | 2 | 139 | 4,700 | 3,561 |
| 334 | cloning | 4 | 139 | 483 | 621 |
| 336 | Physical Chemistry | 6 | 138 | 1,572 | 1,608 |
| 336 | Diet | 7 | 138 | 1,192 | 1,786 |
| 338 | Reproduction | 7 | 137 | 1,359 | 1,448 |
| 339 | Microbial Ecology | 4 | 135 | 1,688 | 2,007 |
| 339 | Mental Health | 11 | 135 | 744 | 1,057 |
| 341 | environmental protection | 5 | 133 | 2,745 | 2,910 |
| 341 | rural health | 3 | 133 | 184 | 132 |
| 343 | Forensic Psychology | 4 | 132 | 336 | 243 |
| 343 | Parasitology | 10 | 132 | 1,252 | 1,586 |
| 345 | Systems Biology | 8 | 131 | 829 | 1,126 |
| 345 | Immunogenetics | 5 | 131 | 429 | 445 |
| 345 | Cell adhesion | 8 | 131 | 35 | 130 |
| 348 | air quality management | 1 | 129 | 983 | 418 |
| 348 | Parenteral nutrition | 7 | 129 | 542 | 834 |
| 348 | indoor air pollution | 1 | 129 | 698 | 304 |
| 348 | Ventilation | 1 | 129 | 920 | 361 |
| 348 | Sick building syndrome | 1 | 129 | 698 | 304 |
| 353 | Retina | 2 | 127 | 188 | 336 |
| 353 | eye | 2 | 127 | 236 | 348 |
| 355 | Clinical Pharmacology | 7 | 126 | 766 | 924 |
| 356 | Trace elements | 1 | 125 | 535 | 279 |
| 357 | Colloids | 5 | 124 | 2,704 | 2,937 |
| 358 | Cardiac electrophysiology | 2 | 123 | 287 | 252 |
| 358 | arrhythmia | 2 | 123 | 287 | 252 |
| 360 | Computational Biology | 11 | 122 | 1,217 | 1,890 |
| 361 | chronic disease | 5 | 121 | 203 | 246 |
| 362 | pollutants | 2 | 120 | 2,139 | 1,843 |
| 362 | Environmental pollutants | 2 | 120 | 2,464 | 2,059 |
| 364 | Functional Genomics | 3 | 119 | 238 | 281 |
| 364 | child sexual abuse | 1 | 119 | 312 | 92 |
| 364 | Steroids | 6 | 119 | 591 | 731 |
| 364 | Evolution | 4 | 119 | 1,467 | 1,489 |
| 368 | Pediatric Hematology | 7 | 118 | 193 | 152 |
| 368 | carcinogens | 3 | 118 | 863 | 807 |
| 368 | vascular diseases | 3 | 118 | 661 | 699 |
| 368 | Cognition | 4 | 118 | 1,395 | 1,318 |
| 372 | Radiotherapy | 14 | 117 | 121 | 138 |
| 372 | Freeze-Drying | 1 | 117 | 673 | 255 |
| 372 | Hypothermia | 1 | 117 | 673 | 255 |
| 372 | blood transfusion | 13 | 117 | 232 | 402 |
| 372 | Freeze Drying | 1 | 117 | 673 | 255 |
| 377 | Carcinogenesis | 4 | 116 | 730 | 856 |
| 378 | Bioorganic chemistry | 6 | 115 | 1,939 | 2,225 |
| 378 | Family | 6 | 115 | 660 | 727 |
| 378 | Ethnology | 3 | 115 | 1,465 | 868 |
| 381 | Social Sciences | 9 | 114 | 2,033 | 2,218 |
| 382 | Educational Psychology | 5 | 113 | 1,057 | 1,154 |
| 382 | Enteral nutrition | 5 | 113 | 558 | 774 |
| 384 | Health Services Research | 10 | 112 | 760 | 1,205 |
| 385 | Nonlinear Dynamics | 5 | 110 | 1,484 | 1,472 |
| 385 | Statistical physics | 5 | 110 | 2,424 | 2,393 |
| 385 | Microscopy | 4 | 110 | 1,218 | 929 |
| 385 | child abuse | 4 | 110 | 662 | 785 |
| 389 | Photography | 49 | 108 | 272 | 320 |
| 389 | drugs | 7 | 108 | 1,226 | 1,563 |
| 391 | Kidney diseases | 6 | 106 | 575 | 708 |
| 392 | Sexual health | 8 | 104 | 359 | 486 |
| 393 | Australia | 6 | 103 | 1,251 | 1,314 |
| 394 | Forensic Pathology | 7 | 102 | 62 | 74 |
| 394 | ethnicity | 2 | 102 | 869 | 412 |
| 394 | health and race | 2 | 102 | 248 | 150 |
| 394 | Immunochemistry | 11 | 102 | 391 | 767 |
| 394 | Eating Disorders | 5 | 102 | 597 | 723 |
| 394 | Cell survival | 10 | 102 | 35 | 215 |
| 394 | molecular chaperones | 10 | 102 | 43 | 216 |
| 401 | Neuropharmacology | 3 | 101 | 591 | 552 |
| 401 | Parasitic Diseases | 6 | 101 | 1,281 | 1,578 |
| 401 | ethnic groups | 1 | 101 | 595 | 267 |
| 401 | Aquatic ecology | 1 | 101 | 1,438 | 767 |
| 405 | Global Health | 9 | 100 | 495 | 765 |
| 405 | Language Disorders | 7 | 100 | 534 | 660 |
| 405 | Drug design | 2 | 100 | 1,729 | 1,363 |
| 405 | health services | 13 | 100 | 411 | 825 |
| 409 | sexual behavior | 1 | 98 | 1,084 | 633 |
| 410 | Feeding and Eating Disorders | 4 | 96 | 652 | 728 |
| 410 | mutagens | 2 | 96 | 763 | 784 |
| 412 | Biomarkers | 2 | 95 | 531 | 304 |
| 412 | biochemical markers | 2 | 95 | 771 | 509 |
| 414 | Materials Science | 2 | 94 | 3,962 | 3,303 |
| 414 | Pharmacy | 5 | 94 | 1,491 | 1,756 |
| 414 | Mathematics | 7 | 94 | 4,019 | 3,594 |
| 414 | Environmental Policy | 2 | 94 | 3,537 | 3,285 |
| 414 | Environmental Law | 2 | 94 | 1,243 | 1,400 |
| 414 | Palliative Care | 7 | 94 | 461 | 565 |
| 414 | Cardiovascular diseases | 11 | 94 | 725 | 1,155 |
| 414 | free radicals | 3 | 94 | 1,179 | 1,422 |
| 422 | water resources | 6 | 93 | 147 | 140 |
| 422 | Proteome | 5 | 93 | 813 | 1,117 |
| 422 | glycoproteins | 2 | 93 | 532 | 451 |
| 422 | Glycoconjugates | 2 | 93 | 532 | 451 |
| 422 | glycolipids | 2 | 93 | 532 | 451 |
| 422 | Sleep | 23 | 93 | 438 | 1,157 |
| 428 | hospice care | 6 | 92 | 323 | 391 |
| 429 | Comparative Physiology | 3 | 91 | 738 | 768 |
| 429 | Genes | 7 | 91 | 658 | 1,011 |
| 431 | cytokines | 3 | 90 | 1,077 | 1,221 |
| 432 | Pediatric Dermatology | 2 | 89 | 433 | 246 |
| 432 | Surface Chemistry | 4 | 89 | 2,906 | 3,102 |
| 432 | Medical Anthropology | 3 | 89 | 1,152 | 1,331 |
| 435 | Parasites | 5 | 88 | 1,217 | 1,362 |
| 436 | Social Psychology | 9 | 87 | 1,238 | 1,988 |
| 436 | gene mapping | 2 | 87 | 1,963 | 1,872 |
| 438 | Drug delivery systems | 3 | 86 | 1,513 | 1,599 |
| 439 | Zoology | 4 | 85 | 2,127 | 1,857 |
| 439 | Neuroanatomy | 3 | 85 | 210 | 228 |
| 441 | Reproductive health | 4 | 84 | 603 | 712 |
| 442 | Nursing | 10 | 83 | 1,023 | 1,460 |
| 442 | Public Policy | 6 | 83 | 1,165 | 1,706 |
| 442 | Primary health care | 12 | 83 | 731 | 1,458 |
| 442 | Developmental Neurobiology | 7 | 83 | 279 | 492 |
| 442 | Hospitals | 18 | 83 | 114 | 291 |
| 442 | DNA polymerases | 1 | 83 | 586 | 689 |
| 448 | Meteorology | 1 | 82 | 2,726 | 2,086 |
| 448 | Analytical Chemistry | 5 | 82 | 3,064 | 3,480 |
| 448 | Occupational Health | 10 | 82 | 456 | 827 |
| 448 | Bioinformatics | 8 | 82 | 1,181 | 1,797 |
| 448 | viral genetics | 1 | 82 | 406 | 490 |
| 448 | vitamins | 2 | 82 | 165 | 191 |
| 454 | Adolescent Medicine | 6 | 81 | 317 | 745 |
| 455 | Food | 4 | 79 | 2,569 | 2,972 |
| 455 | Spectrum analysis | 3 | 79 | 3,509 | 3,319 |
| 455 | drug abuse | 12 | 79 | 238 | 557 |
| 458 | School Psychology | 4 | 78 | 388 | 494 |
| 458 | DNA methylation | 3 | 78 | 266 | 383 |
| 460 | Enzyme inhibitors | 2 | 77 | 535 | 417 |
| 460 | Elderly | 20 | 77 | 389 | 689 |
| 462 | Algae | 1 | 76 | 1,076 | 759 |
| 462 | Seaweed | 1 | 76 | 844 | 656 |
| 462 | Food preferences | 4 | 76 | 307 | 473 |
| 462 | Birth control | 2 | 76 | 550 | 506 |
| 466 | Game Theory | 3 | 75 | 568 | 477 |
| 466 | Sleep Disorders | 21 | 75 | 454 | 1,242 |
| 466 | Simulation Methods | 3 | 75 | 1,037 | 947 |
| 466 | Immunohistochemistry | 8 | 75 | 62 | 131 |
| 470 | biological factors | 5 | 73 | 1,491 | 1,863 |
| 471 | Gastrointestinal diseases | 7 | 72 | 351 | 566 |
| 472 | Contraception | 4 | 71 | 467 | 611 |
| 473 | RNA | 2 | 70 | 576 | 622 |
| 473 | Yeast | 1 | 70 | 694 | 535 |
| 473 | Exercise | 2 | 70 | 1,737 | 1,318 |
| 476 | dietary supplements | 1 | 69 | 1,448 | 1,057 |
| 476 | Nanostructures | 1 | 69 | 2,681 | 2,080 |
| 476 | feeding behavior | 3 | 69 | 697 | 874 |
| 476 | Appetite | 3 | 69 | 618 | 802 |
| 480 | Anthropology | 5 | 68 | 1,154 | 1,276 |
| 480 | Mitochondria | 2 | 68 | 335 | 367 |
| 480 | families | 1 | 68 | 1,378 | 776 |
| 480 | Post-traumatic stress disorder | 3 | 68 | 715 | 850 |
| 484 | counseling | 9 | 67 | 715 | 1,183 |
| 484 | Dementia | 18 | 67 | 509 | 912 |
| 484 | Alzheimer's disease | 18 | 67 | 522 | 985 |
| 487 | Teratology | 4 | 65 | 210 | 317 |
| 487 | Andrology | 7 | 65 | 339 | 600 |
| 487 | Cellular senescence | 1 | 65 | 619 | 745 |
| 487 | Oligosaccharides | 1 | 65 | 462 | 305 |
| 487 | sex differences | 1 | 65 | 287 | 206 |
| 492 | Molecular evolution | 4 | 64 | 1,208 | 1,776 |
| 493 | Electrophoresis | 2 | 63 | 1,762 | 1,631 |
| 493 | Electrocardiography | 7 | 63 | 157 | 245 |
| 493 | Chromatography | 2 | 63 | 1,799 | 1,593 |
| 493 | Osteoporosis | 3 | 63 | 320 | 370 |
| 493 | prostaglandins | 5 | 63 | 307 | 464 |
| 493 | Chromatographic analysis | 2 | 63 | 2,041 | 1,700 |
| 499 | Dialysis | 9 | 62 | 37 | 55 |
| 499 | Hemodialysis | 9 | 62 | 13 | 10 |
| 501 | Community Psychiatry | 14 | 61 | 346 | 1,104 |
| 501 | Patient education | 7 | 61 | 319 | 709 |
| 503 | Criminology | 1 | 60 | 1,348 | 862 |
| 504 | Endocrine glands | 1 | 59 | 436 | 522 |
| 505 | Signal Processing | 1 | 58 | 3,036 | 2,450 |
| 506 | Agricultural Ecology | 2 | 57 | 1,209 | 1,453 |
| 506 | Asia | 7 | 57 | 1,845 | 2,498 |
| 506 | Developing countries | 3 | 57 | 2,229 | 2,332 |
| 509 | Statistics | 10 | 56 | 1,480 | 1,993 |
| 509 | Engineering Mathematics | 2 | 56 | 2,205 | 1,637 |
| 509 | Population | 1 | 56 | 1,411 | 1,060 |
| 512 | Brachytherapy | 3 | 55 | 160 | 149 |
| 513 | Cytokine | 2 | 54 | 467 | 621 |
| 514 | Psychoanalysis | 8 | 53 | 164 | 202 |
| 514 | language | 2 | 53 | 982 | 970 |
| 516 | Computer Science | 2 | 52 | 2,455 | 1,950 |
| 516 | Preoperative Care | 2 | 52 | 102 | 72 |
| 516 | perioperative care | 2 | 52 | 101 | 72 |
| 516 | Teaching | 4 | 52 | 1,523 | 1,758 |
| 516 | radioactive waste | 1 | 52 | 1,354 | 1,534 |
| 516 | industrial waste | 1 | 52 | 1,404 | 1,536 |
| 516 | Hazardous waste | 1 | 52 | 1,558 | 1,598 |
| 516 | drug evaluation | 3 | 52 | 1,197 | 1,491 |
| 524 | Biofeedback | 2 | 51 | 141 | 225 |
| 525 | Neuroimaging | 3 | 50 | 273 | 304 |
| 525 | anesthesia | 6 | 50 | 313 | 420 |
| 525 | Personality Assessment | 11 | 50 | 250 | 774 |
| 528 | Human Rights | 2 | 49 | 722 | 570 |
| 528 | Food additives | 5 | 49 | 805 | 1,606 |
| 528 | Culture techniques | 6 | 49 | 173 | 324 |
| 528 | Entomology | 4 | 49 | 1,938 | 2,079 |
| 532 | Sustainable Development | 1 | 48 | 3,134 | 2,673 |
| 532 | Optical materials | 1 | 48 | 2,991 | 2,747 |
| 532 | Humanitarian Assistance | 1 | 48 | 66 | 25 |
| 535 | Pharmaceutical Technology | 1 | 47 | 1,998 | 1,786 |
| 536 | Geomorphology | 1 | 46 | 1,867 | 1,770 |
| 536 | Soil Science | 1 | 46 | 2,537 | 2,201 |
| 536 | Environmental Geology | 1 | 46 | 2,351 | 2,012 |
| 536 | Pharmacogenomics | 1 | 46 | 499 | 434 |
| 536 | Atherosclerosis | 3 | 46 | 154 | 281 |
| 536 | Electroconvulsive therapy | 3 | 46 | 105 | 138 |
| 536 | cilia | 1 | 46 | 40 | 61 |
| 543 | Health insurance | 4 | 45 | 330 | 510 |
| 543 | Lipids | 2 | 45 | 1,402 | 1,625 |
| 545 | Oral Pathology | 1 | 43 | 186 | 161 |
| 545 | Hematopoietic stem cell transplantation | 2 | 43 | 494 | 649 |
| 545 | Prisons | 5 | 43 | 230 | 327 |
| 548 | Cognitive Therapy | 2 | 42 | 738 | 804 |
| 548 | personality | 10 | 42 | 781 | 1,882 |
| 550 | Ergonomics | 2 | 41 | 1,074 | 1,087 |
| 550 | Radiation Oncology | 1 | 41 | 540 | 464 |
| 550 | Crystallization | 3 | 41 | 506 | 468 |
| 550 | Crystallography | 3 | 41 | 1,600 | 1,270 |
| 550 | Radioisotopes | 1 | 41 | 1,606 | 1,054 |
| 550 | X-ray crystallography | 3 | 41 | 524 | 562 |
| 550 | Growth factors | 3 | 41 | 234 | 581 |
| 557 | Genetic epidemiology | 3 | 40 | 222 | 359 |
| 557 | pediatric pharmacology | 7 | 40 | 35 | 56 |
| 557 | heredity | 3 | 40 | 615 | 787 |
| 557 | Suicide | 2 | 40 | 650 | 724 |
| 557 | hygiene | 2 | 40 | 641 | 766 |
| 557 | children | 1 | 40 | 803 | 651 |
| 563 | health services accessibility | 7 | 39 | 544 | 1,177 |
| 563 | ethanol | 2 | 39 | 594 | 665 |
| 565 | Neonatology | 2 | 38 | 697 | 769 |
| 565 | Disease management | 1 | 38 | 205 | 133 |
| 565 | nuclear magnetic resonance | 1 | 38 | 1,282 | 985 |
| 565 | nuclear magnetic resonance spectroscopy | 1 | 38 | 1,039 | 785 |
| 565 | family violence | 2 | 38 | 522 | 713 |
| 570 | Environmental Microbiology | 2 | 37 | 1,542 | 2,065 |
| 570 | Environmental Management | 1 | 37 | 3,807 | 3,931 |
| 570 | Cerebrospinal fluid | 1 | 37 | 235 | 235 |
| 573 | Chemical Engineering | 2 | 36 | 3,964 | 4,281 |
| 573 | Molecular Genetics | 2 | 36 | 1,817 | 2,333 |
| 573 | Hemostasis | 2 | 36 | 752 | 821 |
| 573 | Immunopharmacology | 1 | 36 | 1,519 | 1,443 |
| 573 | embryonic development | 1 | 36 | 663 | 639 |
| 573 | Reproductive toxicology | 1 | 36 | 715 | 728 |
| 573 | mental processes | 2 | 36 | 445 | 454 |
| 580 | Artificial Intelligence | 1 | 35 | 4,333 | 3,829 |
| 580 | adolescence | 3 | 35 | 888 | 1,268 |
| 580 | Soft Condensed Matter | 1 | 35 | 1,513 | 1,407 |
| 580 | biopolymers | 1 | 35 | 1,667 | 1,536 |
| 580 | Psychiatric hospitals | 11 | 35 | 120 | 397 |
| 585 | urban health | 4 | 34 | 193 | 463 |
| 585 | health planning | 5 | 34 | 1,724 | 2,645 |
| 587 | Data Mining | 1 | 33 | 1,784 | 1,487 |
| 587 | Health Services Administration | 4 | 33 | 817 | 1,402 |
| 587 | Industrial Microbiology | 1 | 33 | 2,657 | 2,694 |
| 587 | Pediatric Nursing | 2 | 33 | 475 | 578 |
| 587 | Personality Disorders | 2 | 33 | 324 | 433 |
| 587 | data collection | 1 | 33 | 458 | 379 |
| 587 | Ion channels | 3 | 33 | 93 | 214 |
| 587 | Earth Sciences | 1 | 33 | 3,931 | 3,446 |
| 587 | computer networks | 1 | 33 | 3,071 | 2,801 |
| 596 | Hydraulic Engineering | 3 | 32 | 834 | 1,137 |
| 596 | industrial hygiene | 3 | 32 | 1,017 | 1,121 |
| 596 | healthcare disparities | 3 | 32 | 476 | 780 |
| 596 | Communication | 4 | 32 | 1,795 | 2,459 |
| 600 | Occupational Therapy | 3 | 31 | 972 | 1,014 |
| 601 | elder abuse | 1 | 30 | 554 | 567 |
| 601 | Safety management | 3 | 30 | 617 | 880 |
| 601 | Student Health Services | 4 | 30 | 233 | 478 |
| 601 | violence | 2 | 30 | 1,154 | 1,414 |
| 605 | psychopathology | 2 | 29 | 354 | 491 |
| 605 | scientific societies | 3 | 29 | 674 | 1,091 |
| 607 | Disability Studies | 1 | 28 | 480 | 420 |
| 607 | Oligosaccharide | 1 | 28 | 499 | 584 |
| 607 | Carbohydrates | 1 | 28 | 698 | 722 |
| 607 | Quality of life | 3 | 28 | 1,380 | 2,203 |
| 607 | Flow cytometry | 3 | 28 | 335 | 583 |
| 612 | Quality Assurance | 2 | 26 | 452 | 583 |
| 612 | Cognitive neuroscience | 2 | 26 | 1,047 | 1,423 |
| 612 | Immunotoxicology | 2 | 26 | 397 | 568 |
| 612 | Oxygen therapy | 1 | 26 | 9 | 4 |
| 612 | Diving | 1 | 26 | 9 | 4 |
| 617 | Neurogenetics | 5 | 25 | 204 | 558 |
| 617 | Geriatric Pharmacology | 2 | 25 | 307 | 481 |
| 617 | Psycholinguistics | 1 | 25 | 1,328 | 1,316 |
| 617 | Neurolinguistics | 1 | 25 | 673 | 752 |
| 617 | Mycology | 1 | 25 | 2,047 | 2,026 |
| 617 | Fungi | 1 | 25 | 1,434 | 1,517 |
| 617 | biological evolution | 1 | 25 | 2,607 | 2,835 |
| 617 | Europe | 3 | 25 | 2,670 | 3,228 |
| 617 | sports injuries | 3 | 25 | 543 | 873 |
| 626 | Molecular Microbiology | 2 | 24 | 888 | 1,377 |
| 626 | Interferons | 1 | 24 | 483 | 497 |
| 626 | Military psychology | 1 | 24 | 203 | 199 |
| 629 | Obstetric Nursing | 1 | 23 | 451 | 459 |
| 629 | Plant physiology | 3 | 23 | 1,944 | 2,832 |
| 629 | disease outbreaks | 2 | 23 | 584 | 888 |
| 629 | Epidemics | 2 | 23 | 559 | 869 |
| 633 | Behavioral research | 3 | 22 | 624 | 1,038 |
| 633 | preimplantation genetic diagnosis | 2 | 22 | 506 | 746 |
| 633 | embryo transfer | 2 | 22 | 516 | 758 |
| 633 | men | 2 | 22 | 393 | 612 |
| 633 | Vocational guidance | 1 | 22 | 1,413 | 1,434 |
| 633 | Longevity | 1 | 22 | 349 | 437 |
| 633 | rejuvenation | 1 | 22 | 270 | 378 |
| 633 | Aggression | 1 | 22 | 813 | 942 |
| 633 | planning | 3 | 22 | 776 | 1,327 |
| 642 | Mass Spectrometry | 1 | 21 | 1,549 | 1,532 |
| 642 | pain management | 1 | 21 | 897 | 916 |
| 642 | Family Therapy | 5 | 21 | 543 | 1,089 |
| 642 | homosexuality | 2 | 21 | 527 | 753 |
| 646 | Developmental Psychology | 2 | 20 | 1,181 | 1,562 |
| 646 | Emerging infectious diseases | 1 | 20 | 571 | 754 |
| 646 | orphan drugs | 1 | 20 | 155 | 56 |
| 646 | Antigens | 3 | 20 | 661 | 1,038 |
| 646 | rare diseases | 1 | 20 | 848 | 931 |
| 646 | freshwater biology | 1 | 20 | 1,448 | 1,526 |
| 652 | Philosophy | 3 | 19 | 1,462 | 1,286 |
| 652 | Nephrology | 1 | 19 | 678 | 832 |
| 652 | Biosensors | 1 | 19 | 1,782 | 2,282 |
| 652 | Environmental Geochemistry | 1 | 19 | 1,128 | 1,257 |
| 652 | risk factors | 1 | 19 | 962 | 1,015 |
| 652 | Minerals | 1 | 19 | 1,427 | 1,548 |
| 658 | Drug targeting | 1 | 18 | 593 | 854 |
| 658 | Genetic disorders | 1 | 18 | 576 | 688 |
| 658 | Socialization | 3 | 18 | 547 | 1,097 |
| 658 | Religion and Psychology | 3 | 18 | 538 | 950 |
| 658 | role | 3 | 18 | 448 | 984 |
| 658 | professional practice | 5 | 18 | 92 | 164 |
| 658 | Bacterial diseases | 1 | 18 | 522 | 678 |
| 658 | eugenics | 2 | 18 | 665 | 1,040 |
| 666 | Architecture | 1 | 17 | 940 | 752 |
| 666 | Nuclear Energy | 1 | 17 | 1,518 | 1,336 |
| 666 | Climatology | 1 | 17 | 2,378 | 2,592 |
| 666 | Information Systems | 2 | 17 | 1,688 | 2,333 |
| 666 | Pediatric Endocrinology | 1 | 17 | 548 | 476 |
| 666 | Psychiatric Nursing | 1 | 17 | 1,084 | 1,138 |
| 666 | Metabolic disorders in children | 1 | 17 | 519 | 445 |
| 666 | Building | 1 | 17 | 910 | 851 |
| 666 | humanistic psychology | 3 | 17 | 70 | 202 |
| 666 | Insect biochemistry | 1 | 17 | 730 | 892 |
| 676 | Freshwater Ecology | 1 | 16 | 584 | 566 |
| 676 | Asthma | 2 | 16 | 752 | 1,055 |
| 676 | Adult Education | 2 | 16 | 793 | 980 |
| 676 | Freshwater invertebrates | 1 | 16 | 398 | 564 |
| 676 | Social Issues | 2 | 16 | 336 | 572 |
| 676 | Randomized Controlled Trials | 1 | 16 | 1,394 | 1,433 |
| 676 | Protozoa | 2 | 16 | 517 | 827 |
| 676 | Social problems | 1 | 16 | 1,000 | 1,145 |
| 676 | Hippocampus | 1 | 16 | 457 | 671 |
| 676 | probabilities | 1 | 16 | 1,790 | 1,532 |
| 676 | Fluorescence | 1 | 16 | 951 | 930 |
| 687 | Systems Analysis | 2 | 15 | 1,431 | 1,991 |
| 687 | Lung Transplantation | 2 | 15 | 373 | 602 |
| 687 | Cell migration | 1 | 15 | 198 | 356 |
| 687 | nursing education | 2 | 15 | 228 | 335 |
| 687 | mutation | 1 | 15 | 839 | 1,087 |
| 687 | occupational diseases | 2 | 15 | 922 | 1,557 |
| 687 | Heart transplantation | 2 | 15 | 373 | 602 |
| 687 | System analysis | 1 | 15 | 3,181 | 3,369 |
| 687 | animal diseases | 2 | 15 | 614 | 1,036 |
| 696 | Experimental Psychology | 3 | 14 | 592 | 951 |
| 696 | Surface-Active Agents | 1 | 14 | 1,733 | 2,214 |
| 696 | Altitude Sickness | 2 | 14 | 168 | 325 |
| 696 | Lymphoma | 4 | 14 | 255 | 519 |
| 696 | Multiple Myeloma | 4 | 14 | 249 | 514 |
| 696 | Social welfare | 1 | 14 | 992 | 1,076 |
| 696 | Electrochemistry | 3 | 14 | 3,201 | 3,948 |
| 696 | Extracellular matrix | 1 | 14 | 372 | 569 |
| 696 | optical instruments | 1 | 14 | 521 | 560 |
| 696 | Surface properties | 1 | 14 | 1,779 | 2,262 |
| 696 | Altitude | 2 | 14 | 168 | 325 |
| 696 | optical phenomena | 1 | 14 | 229 | 293 |
| 696 | drug control | 1 | 14 | 583 | 724 |
| 696 | collagen | 1 | 14 | 395 | 586 |
| 710 | Geriatric Psychiatry | 1 | 13 | 1,385 | 1,641 |
| 710 | Nuclear Chemistry | 1 | 13 | 1,617 | 1,584 |
| 710 | Radiochemistry | 1 | 13 | 1,539 | 1,465 |
| 710 | Leadership | 2 | 13 | 694 | 1,213 |
| 710 | Identity | 1 | 13 | 294 | 433 |
| 710 | Respiratory Infections | 2 | 13 | 380 | 692 |
| 710 | China | 1 | 13 | 3,740 | 4,062 |
| 710 | drinking water | 1 | 13 | 280 | 369 |
| 710 | Self | 1 | 13 | 392 | 542 |
| 710 | Influenza | 2 | 13 | 282 | 594 |
| 720 | Nonparametric Statistics | 1 | 12 | 379 | 354 |
| 720 | Histocompatibility Testing | 8 | 12 | 213 | 881 |
| 720 | Aerosols | 1 | 12 | 835 | 936 |
| 720 | Holistic Health | 3 | 12 | 458 | 1,005 |
| 720 | Reading | 1 | 12 | 932 | 1,090 |
| 720 | minority groups | 1 | 12 | 177 | 209 |
| 720 | Aquaculture | 1 | 12 | 1,961 | 2,242 |
| 720 | aerosol | 1 | 12 | 607 | 704 |
| 720 | cosmetics | 1 | 12 | 345 | 498 |
| 729 | patient satisfaction | 3 | 11 | 113 | 276 |
| 729 | Sexuality | 1 | 11 | 572 | 692 |
| 729 | Biometrics | 1 | 11 | 1,403 | 1,547 |
| 729 | Library Science | 2 | 11 | 1,186 | 1,525 |
| 729 | allied health | 2 | 11 | 346 | 645 |
| 729 | Information Science | 1 | 11 | 3,515 | 3,911 |
| 735 | Cybernetics | 1 | 10 | 2,231 | 2,612 |
| 735 | Gender Studies | 1 | 10 | 916 | 1,130 |
| 735 | Ethics | 1 | 10 | 1,540 | 1,726 |
| 735 | Queer Studies | 1 | 10 | 563 | 801 |
| 735 | Plant Genetics | 2 | 10 | 774 | 1,398 |
| 735 | food technology | 1 | 10 | 3,317 | 3,904 |
| 735 | Plant genetic engineering | 2 | 10 | 996 | 1,595 |
| 735 | patents | 1 | 10 | 177 | 280 |
| 735 | motivation | 2 | 10 | 453 | 921 |
| 735 | breastfeeding | 1 | 10 | 852 | 1,109 |
| 735 | Learning | 2 | 10 | 1,362 | 2,160 |
| 735 | plant molecular biology | 2 | 10 | 1,610 | 2,575 |
| 747 | Criminal psychology | 2 | 9 | 885 | 1,269 |
| 747 | Cost control | 2 | 9 | 145 | 253 |
| 747 | Multimedia Systems | 1 | 9 | 2,587 | 2,857 |
| 750 | Information Technology | 1 | 8 | 3,535 | 3,973 |
| 750 | Visual Arts | 1 | 8 | 241 | 314 |
| 750 | Fluid Mechanics | 1 | 8 | 2,097 | 2,403 |
| 750 | Music Therapy | 1 | 8 | 411 | 588 |
| 750 | Educational Technology | 1 | 8 | 2,599 | 3,200 |
| 750 | Statistical Mechanics | 1 | 8 | 981 | 1,095 |
| 750 | Magnetohydrodynamics | 1 | 8 | 354 | 398 |
| 750 | Diagnosis | 1 | 8 | 669 | 923 |
| 750 | Cross-Cultural Studies | 6 | 8 | 427 | 1,651 |
| 750 | physical therapy techniques | 1 | 8 | 237 | 308 |
| 750 | Art | 1 | 8 | 632 | 426 |
| 750 | Art and Society | 1 | 8 | 111 | 51 |
| 750 | air quality | 1 | 8 | 565 | 895 |
| 750 | child mental health | 1 | 8 | 794 | 1,089 |
| 750 | society | 2 | 8 | 113 | 293 |
| 750 | cross-cultural comparison | 6 | 8 | 304 | 1,240 |
| 750 | Heterocyclic compounds | 1 | 8 | 1,533 | 1,742 |
| 750 | India | 2 | 8 | 1,916 | 2,549 |
| 750 | Biodiversity | 1 | 8 | 2,982 | 3,517 |
| 750 | Nitric oxide | 1 | 8 | 519 | 862 |
| 770 | Dietetics | 2 | 7 | 695 | 1,159 |
| 770 | Dynamics | 1 | 7 | 2,369 | 2,633 |
| 770 | Metastasis | 1 | 7 | 326 | 646 |
| 770 | Crisis Intervention | 1 | 7 | 298 | 512 |
| 770 | Measurement | 1 | 7 | 2,068 | 2,547 |
| 770 | Socioeconomic Factors | 1 | 7 | 1,310 | 1,936 |
| 770 | Vaccination | 1 | 7 | 450 | 759 |
| 770 | Hemophilia | 2 | 7 | 419 | 677 |
| 770 | Pesticides | 1 | 7 | 1,155 | 1,647 |
| 770 | Multiple sclerosis | 3 | 7 | 547 | 1,107 |
| 770 | harm reduction | 2 | 7 | 245 | 544 |
| 770 | Pregnancy | 2 | 7 | 972 | 1,766 |
| 782 | Economics | 1 | 6 | 4,487 | 4,818 |
| 782 | Environmental Chemistry | 1 | 6 | 2,950 | 3,740 |
| 782 | economic policy | 1 | 6 | 3,145 | 3,396 |
| 782 | Happiness | 1 | 6 | 871 | 1,340 |
| 782 | Social policy | 1 | 6 | 1,641 | 2,082 |
| 782 | Computational Complexity | 1 | 6 | 1,664 | 1,991 |
| 782 | water supply | 1 | 6 | 1,312 | 1,850 |
| 782 | Adipose tissue | 1 | 6 | 166 | 352 |
| 782 | Soviet Union | 2 | 6 | 898 | 1,375 |
| 782 | polymerization | 1 | 6 | 4,037 | 4,544 |
| 782 | South America | 1 | 6 | 160 | 169 |
| 782 | Economic planning | 1 | 6 | 943 | 1,400 |
| 794 | Geriatric Nursing | 1 | 5 | 956 | 1,279 |
| 794 | Higher Education | 1 | 5 | 1,115 | 1,509 |
| 794 | Quantum electronics | 1 | 5 | 2,209 | 2,584 |
| 794 | Land use | 1 | 5 | 1,794 | 2,514 |
| 794 | Feasibility studies | 1 | 5 | 445 | 617 |
| 794 | Retinal diseases | 2 | 5 | 87 | 116 |
| 794 | Developmental Immunology | 2 | 5 | 717 | 1,305 |
| 794 | X-rays | 2 | 5 | 668 | 1,063 |
| 794 | Communication in medicine | 1 | 5 | 883 | 1,293 |
| 794 | Familial diseases | 1 | 5 | 305 | 534 |
| 794 | extraterrestrial environment | 3 | 5 | 572 | 1,265 |
| 794 | Radiation effects | 3 | 5 | 643 | 1,601 |
| 794 | Menopause | 2 | 5 | 369 | 786 |
| 807 | Cultural Studies | 1 | 4 | 337 | 590 |
| 807 | Ecological Engineering | 1 | 4 | 1,105 | 1,765 |
| 807 | Biopharmaceutics | 1 | 4 | 1,498 | 2,077 |
| 807 | Tissue Engineering | 1 | 4 | 633 | 942 |
| 807 | Regenerative Medicine | 1 | 4 | 314 | 599 |
| 807 | Religion | 1 | 4 | 1,394 | 1,352 |
| 807 | Artificial Organs | 1 | 4 | 852 | 1,157 |
| 807 | Health care reform | 2 | 4 | 75 | 192 |
| 807 | Religion and Culture | 1 | 4 | 574 | 785 |
| 807 | Marriage | 1 | 4 | 876 | 1,336 |
| 807 | Chromosome mapping | 1 | 4 | 2,286 | 3,094 |
| 807 | Antibodies | 1 | 4 | 785 | 1,143 |
| 807 | abnormalities | 1 | 4 | 268 | 449 |
| 807 | cough | 1 | 4 | 28 | 78 |
| 807 | human development | 1 | 4 | 1,245 | 1,836 |
| 807 | Culture | 1 | 4 | 1,722 | 2,033 |
| 807 | Marriage counseling | 1 | 4 | 541 | 827 |
| 807 | liver | 1 | 4 | 488 | 761 |
| 807 | Toxins | 2 | 4 | 1,034 | 1,928 |
| 826 | Literature | 1 | 3 | 1,224 | 808 |
| 826 | Geography | 1 | 3 | 2,745 | 3,562 |
| 826 | Electrical Engineering | 1 | 3 | 3,819 | 4,203 |
| 826 | Economic Geography | 1 | 3 | 644 | 929 |
| 826 | community development | 1 | 3 | 1,033 | 1,493 |
| 826 | speech therapy | 1 | 3 | 622 | 853 |
| 826 | Chemical analysis | 1 | 3 | 1,599 | 2,243 |
| 826 | Communication Disorders | 1 | 3 | 547 | 761 |
| 826 | Physicians | 1 | 3 | 29 | 14 |
| 826 | Youth | 1 | 3 | 1,097 | 1,694 |
| 826 | Fibers | 1 | 3 | 210 | 333 |
| 826 | synthesis | 1 | 3 | 1,658 | 2,149 |
| 838 | Physical organic chemistry | 1 | 2 | 1,937 | 2,556 |
| 838 | Pastoral Theology | 1 | 2 | 266 | 314 |
| 838 | Organ transplantation | 3 | 2 | 303 | 733 |
| 838 | Plant breeding | 1 | 2 | 1,228 | 1,842 |
| 838 | Constructivism | 1 | 2 | 134 | 268 |
| 838 | Echocardiography | 1 | 2 | 193 | 377 |
| 838 | monitoring | 1 | 2 | 476 | 755 |
| 838 | psychoanalytic therapy | 1 | 2 | 174 | 246 |
| 838 | curriculum evaluation | 1 | 2 | 702 | 1,175 |
| 838 | internet | 1 | 2 | 2,348 | 3,132 |
| 838 | educational innovations | 1 | 2 | 965 | 1,484 |
| 838 | Breeding | 1 | 2 | 1,667 | 2,385 |
| 838 | venom | 1 | 2 | 1,274 | 1,841 |
| 851 | Pediatric Gastroenterology | 2 | 1 | 46 | 139 |
| 851 | Emergency Medical Services | 1 | 1 | 1,059 | 1,648 |
| 851 | Micropaleontology | 1 | 1 | 255 | 406 |
| 851 | Integrative Medicine | 1 | 1 | 535 | 1,005 |
| 851 | Evidence-Based Medicine | 3 | 1 | 680 | 1,868 |
| 851 | Animal genetics | 2 | 1 | 665 | 1,346 |
| 851 | Entropy | 1 | 1 | 1,936 | 2,702 |
| 851 | Cell cycle | 1 | 1 | 507 | 883 |
| 851 | cell proliferation | 1 | 1 | 542 | 915 |
| 851 | management | 1 | 1 | 4,288 | 5,442 |
| 851 | Liposomes | 1 | 1 | 949 | 1,467 |
| 851 | Human biology | 1 | 1 | 1,049 | 1,632 |
| 863 | Political Science | 1 | 0 | 2,320 | 3,050 |
| 863 | Genetic Counseling | 1 | 0 | 345 | 632 |
| 863 | Anthropological Linguistics | 1 | 0 | 482 | 673 |
| 863 | Operations Research | 1 | 0 | 2,843 | 3,712 |
| 863 | Radiation Protection | 1 | 0 | 1,039 | 1,545 |
| 863 | Human-Computer Interaction | 1 | 0 | 2,344 | 3,473 |
| 863 | Precision medicine | 1 | 0 | 378 | 696 |
| 863 | radiation monitoring | 1 | 0 | 938 | 1,431 |
| 863 | Genetic polymorphisms | 1 | 0 | 47 | 137 |
| 863 | Ornithology | 1 | 0 | 1,356 | 1,894 |
| 863 | men's health | 1 | 0 | 67 | 202 |
| 863 | Genetic markers | 1 | 0 | 532 | 1,012 |
| 863 | Ultrasonography | 1 | 0 | 75 | 165 |
| 863 | Radiation dosimetry | 1 | 0 | 792 | 1,256 |
| 863 | Birds | 1 | 0 | 1,546 | 2,121 |
| 863 | amino acids | 1 | 0 | 982 | 1,607 |