| 1 | Medicine | 819 | 31.3K | 478 | 587 |
| 2 | Public Health | 1,035 | 29.1K | 85 | 152 |
| 3 | Epidemiology | 595 | 18.9K | 77 | 122 |
| 4 | Science | 460 | 18.3K | 753 | 1346 |
| 5 | Human genetics | 55 | 14.5K | 636 | 484 |
| 6 | Environmental Health | 249 | 13.1K | 341 | 319 |
| 7 | Research | 463 | 11.8K | 568 | 776 |
| 8 | Biology | 84 | 7.3K | 2715 | 2366 |
| 9 | Environment | 74 | 7.1K | 1038 | 843 |
| 10 | Ecology | 46 | 6.3K | 2107 | 1074 |
| 11 | Physics | 30 | 6.2K | 4807 | 2679 |
| 12 | alcoholism | 119 | 6.2K | 133 | 91 |
| 13 | Statistics | 48 | 6.1K | 720 | 190 |
| 14 | Psychiatry | 153 | 5.8K | 585 | 696 |
| 15 | Molecular Biology | 36 | 5.7K | 3582 | 1797 |
| 16 | Microbiology | 63 | 5.6K | 2003 | 1348 |
| 17 | drug addiction | 96 | 5.5K | 109 | 80 |
| 18 | Medical genetics | 74 | 5.4K | 714 | 607 |
| 19 | Health Services Research | 182 | 5.1K | 63 | 93 |
| 20 | Cancer | 120 | 5.1K | 646 | 716 |
| 21 | Health | 294 | 4.5K | 47 | 151 |
| 22 | Environmental Toxicology | 35 | 4.5K | 592 | 186 |
| 23 | rehabilitation | 150 | 4.4K | 133 | 170 |
| 24 | Genetics | 59 | 4.3K | 1017 | 900 |
| 25 | Natural history | 6 | 4.2K | 4022 | 2037 |
| 26 | government | 264 | 4.1K | 11 | 23 |
| 27 | Primary health care | 137 | 4.0K | 86 | 81 |
| 28 | Psychology | 103 | 4.0K | 829 | 723 |
| 29 | United States | 118 | 3.8K | 729 | 654 |
| 30 | Pediatrics | 118 | 3.7K | 349 | 475 |
| 31 | Mental Disorders | 137 | 3.7K | 344 | 591 |
| 32 | Environmental Engineering | 51 | 3.7K | 832 | 557 |
| 33 | occupational diseases | 141 | 3.5K | 25 | 54 |
| 34 | Medical Microbiology | 31 | 3.5K | 859 | 446 |
| 35 | Molecular Genetics | 1 | 3.5K | 3785 | 306 |
| 35 | Population Genetics | 1 | 3.5K | 2320 | 168 |
| 35 | Molecular ecology | 1 | 3.5K | 2085 | 184 |
| 38 | Vaccines | 116 | 3.5K | 136 | 172 |
| 39 | Occupational Health | 164 | 3.4K | 24 | 43 |
| 40 | Biometrics | 48 | 3.1K | 193 | 111 |
| 41 | infection | 26 | 3.1K | 554 | 203 |
| 42 | Nutrition | 77 | 3.0K | 891 | 833 |
| 43 | Health Policy | 147 | 3.0K | 151 | 250 |
| 44 | Infections | 19 | 2.9K | 445 | 169 |
| 45 | Public Policy | 117 | 2.9K | 99 | 146 |
| 46 | Parasitic Diseases | 19 | 2.8K | 928 | 264 |
| 47 | Substance Abuse | 101 | 2.8K | 149 | 156 |
| 48 | Environmental monitoring | 43 | 2.8K | 999 | 694 |
| 49 | Oncology | 36 | 2.7K | 644 | 786 |
| 50 | Sociology | 84 | 2.7K | 424 | 394 |
| 51 | Chronic diseases | 53 | 2.7K | 91 | 168 |
| 52 | Mental illness | 98 | 2.6K | 226 | 499 |
| 53 | Medical Anthropology | 72 | 2.5K | 144 | 215 |
| 54 | environmental protection | 33 | 2.4K | 988 | 561 |
| 55 | Environmental Policy | 31 | 2.4K | 976 | 681 |
| 55 | Environmental Law | 31 | 2.4K | 216 | 191 |
| 57 | health services accessibility | 97 | 2.1K | 34 | 58 |
| 58 | Obstetrics | 79 | 2.1K | 501 | 507 |
| 59 | Chemistry | 28 | 2.1K | 4934 | 3587 |
| 60 | Behavior | 71 | 2.1K | 607 | 853 |
| 61 | Neurology | 35 | 2.0K | 2328 | 1984 |
| 62 | Diet | 41 | 2.0K | 592 | 587 |
| 63 | Geriatrics | 76 | 1.9K | 547 | 601 |
| 64 | Obesity | 62 | 1.9K | 389 | 528 |
| 65 | preventive medicine | 76 | 1.9K | 156 | 269 |
| 66 | Pollution | 35 | 1.8K | 2020 | 1931 |
| 67 | Diabetes | 34 | 1.8K | 784 | 835 |
| 68 | drug control | 66 | 1.8K | 19 | 26 |
| 69 | Diabetes mellitus | 29 | 1.7K | 811 | 839 |
| 70 | Health Education | 79 | 1.6K | 243 | 312 |
| 71 | Global Health | 87 | 1.6K | 55 | 70 |
| 72 | Socioeconomic Factors | 51 | 1.5K | 47 | 58 |
| 73 | Research Design | 32 | 1.5K | 277 | 251 |
| 74 | Mental Health | 51 | 1.4K | 249 | 214 |
| 75 | Health promotion | 68 | 1.4K | 200 | 331 |
| 76 | Women's health | 51 | 1.4K | 145 | 156 |
| 77 | health behavior | 58 | 1.3K | 138 | 194 |
| 78 | disease outbreaks | 11 | 1.3K | 257 | 90 |
| 78 | Epidemics | 11 | 1.3K | 251 | 89 |
| 80 | Child | 65 | 1.3K | 455 | 572 |
| 81 | Critical Care | 31 | 1.3K | 548 | 762 |
| 81 | Critical Care Medicine | 31 | 1.3K | 541 | 760 |
| 83 | sanitation | 19 | 1.2K | 666 | 715 |
| 84 | Adolescent | 49 | 1.2K | 441 | 472 |
| 85 | Adolescent Medicine | 19 | 1.2K | 203 | 260 |
| 86 | Smoking | 42 | 1.2K | 155 | 190 |
| 86 | environmental exposure | 68 | 1.2K | 159 | 396 |
| 88 | medical education | 49 | 1.1K | 396 | 408 |
| 89 | Surgery | 18 | 1.0K | 1141 | 1166 |
| 90 | health planning | 57 | 1.0K | 253 | 336 |
| 91 | Mental Health Services | 12 | 1.0K | 679 | 226 |
| 92 | Medical Ethics | 23 | 1.0K | 312 | 122 |
| 93 | Aging | 40 | 1.0K | 877 | 977 |
| 94 | Physical Therapy | 23 | 1.0K | 451 | 402 |
| 95 | Toxicology | 29 | 972 | 1989 | 1976 |
| 96 | disabilities | 38 | 932 | 88 | 101 |
| 97 | Allergy | 21 | 884 | 561 | 831 |
| 98 | Ethics | 17 | 877 | 334 | 112 |
| 99 | arthritis | 33 | 876 | 402 | 695 |
| 100 | Child welfare | 24 | 874 | 310 | 209 |
| 101 | drug abuse | 32 | 833 | 122 | 114 |
| 102 | pain | 33 | 821 | 388 | 608 |
| 103 | Social work | 39 | 820 | 320 | 263 |
| 104 | Virulence | 2 | 776 | 1764 | 760 |
| 105 | Pregnancy | 20 | 771 | 234 | 179 |
| 106 | Child Development | 23 | 767 | 779 | 811 |
| 107 | older people | 33 | 766 | 452 | 320 |
| 108 | harm reduction | 22 | 730 | 22 | 15 |
| 109 | Qualitative Research | 15 | 718 | 156 | 100 |
| 109 | Gerontology | 32 | 718 | 586 | 593 |
| 111 | Immunity | 3 | 704 | 2516 | 1554 |
| 112 | Carcinogenesis | 25 | 702 | 262 | 407 |
| 113 | Ventilation | 23 | 700 | 99 | 105 |
| 114 | Kidney diseases | 18 | 676 | 382 | 349 |
| 115 | air quality management | 19 | 668 | 74 | 97 |
| 115 | indoor air pollution | 19 | 668 | 70 | 93 |
| 115 | Sick building syndrome | 19 | 668 | 70 | 93 |
| 118 | Cytogenetics | 13 | 656 | 917 | 1027 |
| 119 | Social Sciences | 21 | 655 | 1515 | 888 |
| 120 | Host-parasite interactions | 2 | 653 | 1942 | 920 |
| 121 | environmental pollution | 16 | 640 | 2481 | 2476 |
| 122 | Metabolism | 14 | 625 | 1806 | 1853 |
| 123 | Genetic epidemiology | 26 | 614 | 62 | 93 |
| 123 | heredity | 26 | 614 | 131 | 155 |
| 125 | Developing countries | 28 | 607 | 666 | 811 |
| 126 | Biotechnology | 16 | 602 | 3697 | 3743 |
| 127 | Immunology | 15 | 600 | 2458 | 2524 |
| 128 | industrial hygiene | 47 | 599 | 120 | 167 |
| 129 | Genomics | 20 | 593 | 1581 | 1784 |
| 130 | Nephrology | 12 | 580 | 308 | 311 |
| 130 | child abuse | 25 | 580 | 209 | 358 |
| 132 | international cooperation | 18 | 577 | 146 | 171 |
| 132 | Liver diseases | 11 | 577 | 1022 | 1128 |
| 134 | Globalization | 17 | 569 | 114 | 98 |
| 135 | Quality of life | 28 | 562 | 332 | 655 |
| 136 | Population | 32 | 558 | 199 | 304 |
| 137 | Nanotechnology | 1 | 539 | 7759 | 3013 |
| 137 | nanoscience | 1 | 539 | 4898 | 1709 |
| 139 | Mycology | 4 | 529 | 1781 | 786 |
| 140 | health services | 28 | 517 | 240 | 337 |
| 141 | Parenteral nutrition | 5 | 511 | 1102 | 614 |
| 142 | Hematology | 27 | 500 | 1796 | 1975 |
| 143 | Alzheimer's disease | 13 | 498 | 940 | 604 |
| 144 | Asthma | 13 | 491 | 270 | 175 |
| 145 | Randomized Controlled Trials | 36 | 483 | 212 | 298 |
| 146 | Psychophysiology | 15 | 479 | 1709 | 1875 |
| 147 | Bioethics | 23 | 475 | 226 | 205 |
| 148 | Computational Biology | 21 | 456 | 1196 | 1628 |
| 149 | Health Services Administration | 27 | 450 | 229 | 430 |
| 149 | Clinical Immunology | 11 | 450 | 839 | 675 |
| 151 | mycoses | 2 | 449 | 1364 | 648 |
| 152 | Europe | 37 | 446 | 1006 | 1414 |
| 153 | Endocrinology | 9 | 434 | 2518 | 2377 |
| 154 | Medical Oncology | 22 | 426 | 992 | 1319 |
| 155 | Immunotherapy | 22 | 424 | 713 | 1411 |
| 156 | Physical fitness | 10 | 423 | 618 | 492 |
| 157 | urban health | 19 | 414 | 57 | 106 |
| 158 | Bioinformatics | 17 | 413 | 970 | 1325 |
| 158 | Dementia | 20 | 413 | 692 | 609 |
| 160 | Community Psychiatry | 25 | 412 | 275 | 524 |
| 161 | Demography | 10 | 407 | 354 | 314 |
| 162 | Environmental Microbiology | 4 | 405 | 1454 | 1006 |
| 162 | soil microbiology | 4 | 405 | 1515 | 1147 |
| 162 | Microorganisms | 4 | 405 | 1273 | 909 |
| 165 | Social Psychology | 15 | 398 | 1017 | 1188 |
| 166 | Occupational Therapy | 29 | 396 | 236 | 217 |
| 167 | Autism | 11 | 395 | 375 | 418 |
| 168 | drugs | 16 | 393 | 1099 | 1171 |
| 169 | Dermatology | 12 | 390 | 1199 | 1078 |
| 170 | Maternal health services | 9 | 386 | 200 | 140 |
| 171 | Cardiovascular diseases | 9 | 383 | 1176 | 881 |
| 172 | Australia | 14 | 381 | 939 | 707 |
| 173 | human behavior | 9 | 380 | 1690 | 1944 |
| 174 | Diagnostic microbiology | 9 | 377 | 970 | 1300 |
| 175 | Bioengineering | 2 | 374 | 6239 | 3466 |
| 175 | Biochemical Engineering | 2 | 374 | 4549 | 2974 |
| 177 | Infection control | 14 | 373 | 244 | 281 |
| 178 | Therapeutics | 15 | 368 | 983 | 1373 |
| 179 | Child psychology | 11 | 366 | 899 | 1064 |
| 180 | Allergies | 5 | 354 | 87 | 49 |
| 181 | Hospitals | 12 | 353 | 340 | 296 |
| 182 | Sleep | 23 | 350 | 714 | 1017 |
| 183 | Decision making | 21 | 349 | 447 | 716 |
| 184 | Human Rights | 17 | 341 | 154 | 146 |
| 185 | Sports Medicine | 8 | 340 | 2025 | 1361 |
| 186 | primary prevention | 5 | 336 | 355 | 154 |
| 187 | Rheumatology | 15 | 332 | 652 | 977 |
| 188 | Metabolic diseases | 8 | 326 | 2033 | 2235 |
| 189 | Thorax | 22 | 323 | 150 | 345 |
| 190 | Emergency Medicine | 16 | 321 | 808 | 791 |
| 191 | Psychiatric Nursing | 1 | 320 | 1416 | 207 |
| 192 | Holistic Health | 5 | 319 | 336 | 121 |
| 193 | ethnicity | 8 | 318 | 407 | 166 |
| 194 | Animal Behavior | 5 | 316 | 1825 | 1523 |
| 195 | allied health | 4 | 314 | 208 | 91 |
| 196 | Psychiatric Epidemiology | 22 | 313 | 104 | 340 |
| 197 | Tropical Medicine | 16 | 310 | 858 | 913 |
| 198 | Sleep Disorders | 32 | 308 | 571 | 1077 |
| 199 | Psychopharmacology | 8 | 307 | 1312 | 1358 |
| 199 | health and race | 6 | 307 | 160 | 67 |
| 199 | ethnic groups | 6 | 307 | 223 | 96 |
| 202 | Long-Term Care | 12 | 306 | 243 | 407 |
| 202 | Long-term care facilities | 12 | 306 | 241 | 406 |
| 204 | Social welfare | 16 | 301 | 187 | 208 |
| 205 | homosexuality | 11 | 299 | 146 | 164 |
| 206 | Medical innovations | 1 | 297 | 2251 | 1355 |
| 206 | drug development | 1 | 297 | 2340 | 1251 |
| 208 | genome | 9 | 293 | 1118 | 1658 |
| 209 | ethanol | 7 | 282 | 324 | 244 |
| 210 | Industrial Safety | 25 | 280 | 248 | 551 |
| 211 | Ethology | 4 | 279 | 1616 | 1395 |
| 212 | Sports | 4 | 278 | 2184 | 1124 |
| 213 | Palliative Care | 24 | 268 | 228 | 457 |
| 214 | violence | 11 | 258 | 485 | 583 |
| 215 | Molecular structure | 1 | 248 | 4429 | 1751 |
| 216 | Biochemistry | 11 | 242 | 6680 | 7342 |
| 217 | healthcare disparities | 14 | 239 | 173 | 244 |
| 218 | Alternative Medicine | 12 | 236 | 972 | 1193 |
| 218 | complementary therapies | 12 | 236 | 1045 | 1229 |
| 220 | Geriatric Psychiatry | 10 | 235 | 679 | 820 |
| 221 | Pharmacogenetics | 4 | 233 | 1209 | 966 |
| 222 | Perception | 2 | 232 | 3111 | 1617 |
| 223 | pain management | 12 | 231 | 279 | 404 |
| 224 | Medical Technology | 12 | 229 | 941 | 1260 |
| 224 | Pharmacogenomics | 3 | 229 | 377 | 203 |
| 226 | behavioral medicine | 15 | 228 | 571 | 1231 |
| 226 | Radiobiology | 15 | 228 | 1101 | 1341 |
| 228 | Culture | 11 | 227 | 536 | 367 |
| 229 | Ergonomics | 7 | 226 | 803 | 551 |
| 230 | carcinogens | 7 | 224 | 756 | 942 |
| 231 | Cybernetics | 4 | 217 | 1332 | 848 |
| 231 | Post-traumatic stress disorder | 9 | 217 | 444 | 603 |
| 233 | sexual behavior | 20 | 215 | 173 | 466 |
| 234 | Respiratory Infections | 9 | 211 | 166 | 203 |
| 234 | Influenza | 9 | 211 | 100 | 142 |
| 236 | chronic disease | 13 | 203 | 130 | 249 |
| 237 | Food | 11 | 202 | 2032 | 2703 |
| 238 | adolescence | 5 | 200 | 811 | 710 |
| 239 | Neuropsychiatry | 3 | 198 | 1150 | 773 |
| 239 | mutagens | 6 | 198 | 709 | 946 |
| 239 | Information Science | 7 | 198 | 1931 | 1947 |
| 242 | breastfeeding | 11 | 196 | 195 | 320 |
| 243 | Brain | 3 | 194 | 3259 | 2514 |
| 244 | Visual Perception | 1 | 193 | 3728 | 1630 |
| 244 | Memory | 1 | 193 | 3934 | 1821 |
| 244 | Attention | 1 | 193 | 3889 | 1684 |
| 247 | Neurophysiology | 5 | 192 | 2860 | 2915 |
| 248 | Systems Biology | 4 | 191 | 1803 | 1328 |
| 249 | Health insurance | 14 | 189 | 175 | 366 |
| 249 | child behavior | 4 | 189 | 386 | 367 |
| 251 | Enteral nutrition | 2 | 184 | 1471 | 930 |
| 251 | Cerebral cortex | 3 | 184 | 1123 | 1006 |
| 253 | family violence | 7 | 183 | 259 | 322 |
| 254 | Humanities | 3 | 179 | 2288 | 619 |
| 254 | Reproductive health | 16 | 179 | 289 | 583 |
| 256 | Hemophilia | 11 | 176 | 270 | 358 |
| 256 | hygiene | 6 | 176 | 362 | 367 |
| 258 | ecosystem | 5 | 170 | 1266 | 1474 |
| 258 | Biodiversity | 5 | 170 | 2211 | 2094 |
| 260 | Oral Medicine | 6 | 169 | 505 | 307 |
| 261 | Neonatology | 8 | 168 | 369 | 463 |
| 261 | Developmental Disabilities | 12 | 168 | 515 | 1006 |
| 263 | Ophthalmology | 8 | 165 | 1445 | 1687 |
| 263 | Eating Disorders | 7 | 165 | 646 | 794 |
| 263 | Feeding and Eating Disorders | 7 | 165 | 622 | 766 |
| 266 | Meteorology | 3 | 164 | 2852 | 2540 |
| 266 | atmosphere | 3 | 164 | 986 | 699 |
| 268 | Education | 11 | 163 | 2568 | 2396 |
| 269 | mental health policy | 2 | 161 | 317 | 151 |
| 270 | Contraception | 11 | 159 | 316 | 566 |
| 270 | Birth control | 11 | 159 | 188 | 389 |
| 272 | Respiration | 6 | 157 | 1414 | 1616 |
| 273 | Neuropsychology | 8 | 156 | 1778 | 2233 |
| 274 | Microbial Ecology | 3 | 153 | 2801 | 2884 |
| 274 | Evidence-Based Medicine | 9 | 153 | 749 | 921 |
| 276 | Biophysics | 8 | 152 | 4957 | 5572 |
| 277 | gastrointestinal tract | 2 | 151 | 463 | 383 |
| 278 | Urology | 6 | 150 | 1810 | 1944 |
| 278 | Nursing | 12 | 150 | 1032 | 1246 |
| 280 | Pharmacology | 9 | 146 | 4353 | 5481 |
| 281 | Gender Studies | 6 | 145 | 346 | 335 |
| 282 | psychotherapy | 7 | 144 | 1041 | 1274 |
| 283 | Sustainable Development | 2 | 143 | 3143 | 2050 |
| 284 | Gastrointestinal diseases | 5 | 141 | 684 | 536 |
| 285 | health workforce | 2 | 140 | 297 | 229 |
| 285 | Transplantation | 4 | 140 | 1405 | 1517 |
| 287 | Respiratory system | 4 | 138 | 667 | 676 |
| 288 | Food Microbiology | 4 | 135 | 1305 | 1607 |
| 288 | educational accountability | 2 | 135 | 149 | 74 |
| 290 | Jurisprudence | 7 | 133 | 706 | 686 |
| 290 | traffic safety | 8 | 133 | 150 | 176 |
| 292 | Elderly | 19 | 131 | 525 | 669 |
| 293 | Queer Studies | 4 | 130 | 248 | 236 |
| 294 | Intellectual disability | 7 | 129 | 608 | 743 |
| 295 | Pediatric Nursing | 2 | 128 | 816 | 317 |
| 296 | Data Mining | 7 | 125 | 1180 | 1815 |
| 296 | Sexuality | 9 | 125 | 126 | 175 |
| 298 | Community Psychology | 5 | 124 | 484 | 601 |
| 299 | Patient education | 4 | 120 | 646 | 774 |
| 299 | counseling | 4 | 120 | 1433 | 1237 |
| 301 | Obstetric Nursing | 1 | 119 | 845 | 227 |
| 301 | Pediatric Rheumatology | 8 | 119 | 130 | 177 |
| 301 | Travel | 10 | 119 | 441 | 685 |
| 304 | Data Science | 20 | 118 | 50 | 15 |
| 304 | Vocational guidance | 1 | 118 | 1640 | 881 |
| 306 | Body Image | 2 | 115 | 302 | 261 |
| 307 | Forensic Psychiatry | 6 | 114 | 445 | 491 |
| 308 | Pathology | 3 | 112 | 3082 | 3023 |
| 308 | Schizophrenia | 4 | 112 | 1194 | 1382 |
| 308 | women | 3 | 112 | 993 | 447 |
| 311 | Otolaryngology | 7 | 110 | 471 | 637 |
| 311 | Geophysics | 3 | 110 | 4195 | 3692 |
| 311 | drug therapy | 10 | 110 | 1760 | 2898 |
| 314 | Mixed methods research | 1 | 107 | 150 | 88 |
| 315 | hospice care | 9 | 103 | 304 | 510 |
| 315 | risk factors | 6 | 103 | 639 | 892 |
| 317 | Gene expression regulation | 3 | 100 | 1317 | 1376 |
| 317 | Cell differentiation | 3 | 100 | 2223 | 2680 |
| 317 | DNA methylation | 3 | 100 | 340 | 475 |
| 320 | Audiology | 5 | 98 | 774 | 901 |
| 321 | poverty | 2 | 97 | 660 | 432 |
| 321 | society | 8 | 97 | 26 | 51 |
| 321 | Reproduction | 6 | 97 | 2205 | 2734 |
| 324 | Human biology | 5 | 96 | 550 | 615 |
| 325 | Lung Transplantation | 3 | 94 | 857 | 666 |
| 325 | Heart transplantation | 3 | 94 | 857 | 666 |
| 325 | disease vectors | 2 | 94 | 1460 | 1183 |
| 325 | Familial diseases | 6 | 94 | 149 | 242 |
| 329 | Educational Psychology | 2 | 92 | 1946 | 1447 |
| 329 | management | 7 | 92 | 2679 | 3547 |
| 331 | Systems Analysis | 3 | 90 | 1316 | 1067 |
| 331 | Neurotoxicology | 3 | 90 | 715 | 831 |
| 333 | Clinical Chemistry | 3 | 88 | 3795 | 3928 |
| 333 | feeding behavior | 6 | 88 | 612 | 1047 |
| 333 | Appetite | 6 | 88 | 529 | 946 |
| 336 | Atmospheric Chemistry | 2 | 87 | 1317 | 1408 |
| 336 | Atmospheric Physics | 2 | 87 | 2224 | 2006 |
| 336 | planning | 6 | 87 | 497 | 648 |
| 339 | Pharmaceutical Chemistry | 2 | 86 | 5482 | 4798 |
| 340 | civil rights | 10 | 85 | 153 | 259 |
| 340 | elder abuse | 5 | 85 | 244 | 385 |
| 340 | Exercise | 3 | 85 | 1622 | 1325 |
| 343 | Geriatric Oncology | 3 | 84 | 794 | 918 |
| 343 | Heart Failure | 3 | 84 | 551 | 736 |
| 345 | Social policy | 10 | 83 | 558 | 919 |
| 345 | data collection | 5 | 83 | 944 | 1672 |
| 345 | Africa | 4 | 83 | 1730 | 1319 |
| 345 | biochemical markers | 2 | 83 | 1341 | 960 |
| 345 | sex crimes | 5 | 83 | 511 | 688 |
| 350 | Emergency Medical Services | 4 | 82 | 888 | 901 |
| 350 | Telemedicine | 2 | 82 | 650 | 544 |
| 352 | Criminal psychology | 5 | 81 | 652 | 802 |
| 352 | Risk assessment | 4 | 81 | 578 | 579 |
| 354 | Cardiovascular Pharmacology | 1 | 80 | 722 | 393 |
| 354 | Amyotrophic Lateral Sclerosis | 2 | 80 | 403 | 384 |
| 354 | Frontotemporal lobar degeneration | 2 | 80 | 315 | 275 |
| 354 | Histocompatibility Testing | 2 | 80 | 979 | 659 |
| 354 | rare diseases | 3 | 80 | 854 | 975 |
| 359 | Neurosurgery | 2 | 79 | 1795 | 1581 |
| 360 | Vaccination | 2 | 78 | 415 | 392 |
| 360 | Chromosome mapping | 5 | 78 | 1847 | 2989 |
| 360 | Spine | 3 | 78 | 927 | 1141 |
| 360 | gene mapping | 5 | 78 | 2067 | 3327 |
| 364 | Chemotherapy | 7 | 77 | 1283 | 2168 |
| 364 | Bipolar Disorder | 6 | 77 | 287 | 598 |
| 364 | Migration | 4 | 77 | 127 | 92 |
| 364 | cross-cultural comparison | 3 | 77 | 628 | 568 |
| 368 | Teratology | 2 | 76 | 467 | 493 |
| 368 | Medical Physics | 3 | 76 | 2122 | 1991 |
| 368 | residential treatment | 3 | 76 | 164 | 151 |
| 368 | abnormalities | 2 | 76 | 302 | 330 |
| 372 | Remote Sensing | 2 | 75 | 2196 | 1331 |
| 372 | Health risk communication | 3 | 75 | 66 | 83 |
| 372 | Housing | 4 | 75 | 417 | 611 |
| 372 | Health Risk Assessment | 3 | 75 | 539 | 479 |
| 376 | Climate change | 1 | 74 | 1970 | 2162 |
| 376 | Zoonoses | 1 | 74 | 734 | 468 |
| 378 | Geriatric Pharmacology | 6 | 73 | 222 | 491 |
| 379 | Geography | 6 | 72 | 2004 | 2702 |
| 379 | Environmental Chemistry | 2 | 72 | 3187 | 3170 |
| 379 | biological monitoring | 2 | 72 | 784 | 749 |
| 379 | weight loss | 7 | 72 | 88 | 179 |
| 383 | food technology | 2 | 71 | 3566 | 3439 |
| 383 | epidemiologic methods | 11 | 71 | 30 | 161 |
| 385 | Geographic information systems | 3 | 70 | 1315 | 1108 |
| 385 | Cross-Cultural Studies | 2 | 70 | 1009 | 815 |
| 387 | Nutrition physiology | 6 | 69 | 574 | 1184 |
| 387 | radioactive waste | 2 | 69 | 1137 | 1629 |
| 387 | industrial waste | 2 | 69 | 1193 | 1630 |
| 387 | Hazardous waste | 2 | 69 | 1347 | 1714 |
| 391 | School Psychology | 2 | 68 | 655 | 590 |
| 391 | Cell Biology | 3 | 68 | 5044 | 5999 |
| 391 | Precision medicine | 1 | 68 | 560 | 268 |
| 391 | Antiviral agents | 4 | 68 | 355 | 543 |
| 395 | sexual orientation | 5 | 67 | 49 | 128 |
| 395 | Gender identity | 5 | 67 | 212 | 224 |
| 395 | Youth | 4 | 67 | 637 | 940 |
| 398 | Criminology | 7 | 64 | 678 | 953 |
| 398 | drug resistance | 4 | 64 | 729 | 1216 |
| 398 | Metabolic syndrome | 1 | 64 | 651 | 340 |
| 398 | Hearing | 2 | 64 | 1034 | 884 |
| 402 | Genetic markers | 1 | 63 | 702 | 359 |
| 403 | Neurochemistry | 1 | 62 | 4146 | 3510 |
| 403 | Neurovirology | 1 | 62 | 600 | 407 |
| 403 | Cardiovascular system | 3 | 62 | 2103 | 2965 |
| 403 | Social support | 2 | 62 | 273 | 283 |
| 403 | Social environment | 2 | 62 | 330 | 328 |
| 408 | Process Control | 1 | 61 | 1630 | 1571 |
| 408 | Production Management | 1 | 61 | 1951 | 1745 |
| 410 | Anxiety Disorders | 3 | 60 | 634 | 1117 |
| 410 | Anxiety | 3 | 60 | 631 | 1112 |
| 412 | Epigenetics | 1 | 59 | 520 | 288 |
| 412 | Epigenomics | 1 | 59 | 510 | 281 |
| 414 | Physiology | 2 | 56 | 5956 | 6089 |
| 414 | Soil Mechanics | 1 | 56 | 1954 | 1469 |
| 414 | Engineering Geology | 1 | 56 | 2437 | 1910 |
| 417 | Clinical Trials | 6 | 55 | 451 | 878 |
| 418 | Agricultural Chemistry | 2 | 54 | 3305 | 3361 |
| 418 | Human-Computer Interaction | 5 | 54 | 1340 | 2036 |
| 420 | Crime prevention | 4 | 53 | 239 | 263 |
| 420 | Atherosclerosis | 1 | 53 | 420 | 395 |
| 420 | rural health | 2 | 53 | 287 | 308 |
| 423 | epilepsy | 2 | 52 | 1566 | 1559 |
| 423 | physical therapy techniques | 2 | 52 | 237 | 154 |
| 423 | women's rights | 7 | 52 | 84 | 272 |
| 426 | histological techniques | 1 | 51 | 1468 | 1447 |
| 426 | community participation | 6 | 51 | 69 | 179 |
| 426 | Faculty | 6 | 51 | 69 | 179 |
| 429 | Genetic Counseling | 2 | 50 | 490 | 435 |
| 429 | Sustainable agriculture | 9 | 50 | 378 | 1142 |
| 429 | Online social networks | 3 | 50 | 324 | 432 |
| 429 | Bacteriology | 1 | 50 | 3590 | 3517 |
| 429 | Immunotoxicology | 2 | 50 | 490 | 446 |
| 429 | mental health promotion | 3 | 50 | 180 | 286 |
| 429 | Osteoporosis | 3 | 50 | 436 | 610 |
| 429 | internet | 3 | 50 | 1433 | 1595 |
| 429 | Work | 5 | 50 | 253 | 441 |
| 438 | Rural Development | 4 | 48 | 546 | 811 |
| 438 | Bone diseases | 2 | 48 | 790 | 1021 |
| 440 | Brain damage | 6 | 47 | 321 | 840 |
| 440 | Bereavement | 3 | 47 | 182 | 229 |
| 442 | Cognitive Therapy | 2 | 46 | 923 | 1014 |
| 442 | Family | 5 | 46 | 851 | 1404 |
| 444 | Experimental Psychology | 1 | 44 | 1030 | 812 |
| 445 | Psychosomatic Medicine | 1 | 42 | 1775 | 1691 |
| 445 | Immunopathology | 1 | 42 | 2669 | 2519 |
| 445 | Hippocampus | 1 | 42 | 648 | 745 |
| 448 | Biomedical Engineering | 3 | 40 | 6313 | 7609 |
| 448 | Medical Sociology | 1 | 40 | 126 | 100 |
| 448 | Criminal behavior | 4 | 40 | 154 | 302 |
| 451 | Psychoneuroimmunology | 1 | 39 | 1413 | 1579 |
| 451 | Human Geography | 2 | 39 | 1558 | 1503 |
| 451 | Diagnostic Imaging | 4 | 39 | 2323 | 3298 |
| 451 | Neuroimmunology | 1 | 39 | 1541 | 1724 |
| 451 | Performance | 1 | 39 | 535 | 463 |
| 456 | Transportation | 2 | 38 | 2288 | 2471 |
| 456 | Earth Sciences | 2 | 38 | 4404 | 4525 |
| 456 | crime victims | 3 | 38 | 158 | 232 |
| 456 | Aggression | 3 | 38 | 514 | 925 |
| 456 | Pancreatic diseases | 1 | 38 | 1112 | 694 |
| 461 | Learning disabilities | 4 | 37 | 790 | 1292 |
| 461 | Feasibility studies | 3 | 37 | 361 | 316 |
| 461 | Leukemia | 4 | 37 | 1452 | 2087 |
| 461 | Communication | 3 | 37 | 2482 | 2852 |
| 465 | Clinical Psychology | 3 | 36 | 1850 | 2802 |
| 465 | History of Medicine | 5 | 36 | 448 | 344 |
| 465 | Agriculture | 2 | 36 | 3490 | 3721 |
| 468 | Medical Laboratory Science | 1 | 35 | 4186 | 4015 |
| 468 | Agricultural Ecology | 8 | 35 | 715 | 2436 |
| 468 | Environmental Psychology | 3 | 35 | 365 | 876 |
| 468 | Hypertension | 4 | 35 | 1897 | 3288 |
| 468 | Neuromuscular diseases | 1 | 35 | 1438 | 1393 |
| 468 | food consumption | 8 | 35 | 21 | 200 |
| 468 | Communication in medicine | 2 | 35 | 777 | 973 |
| 468 | city planning | 6 | 35 | 1278 | 2442 |
| 468 | Muscles | 1 | 35 | 1857 | 1921 |
| 468 | Disease | 1 | 35 | 845 | 1244 |
| 478 | Animal ecology | 1 | 34 | 2153 | 1960 |
| 478 | Social behavior | 1 | 34 | 2281 | 2142 |
| 480 | Proteomics | 4 | 33 | 1247 | 2564 |
| 480 | Lipids | 1 | 33 | 2675 | 2829 |
| 480 | proteins | 4 | 33 | 2402 | 3729 |
| 483 | Pharmacy | 2 | 32 | 3269 | 3866 |
| 483 | International Relations | 1 | 32 | 2258 | 1258 |
| 483 | Indoor air quality | 4 | 32 | 81 | 134 |
| 483 | Air Conditioning | 4 | 32 | 159 | 292 |
| 483 | Pharmacy management | 2 | 32 | 512 | 524 |
| 483 | International Finance | 1 | 32 | 2659 | 2379 |
| 483 | heating | 4 | 32 | 124 | 248 |
| 490 | Anthropology | 4 | 31 | 1753 | 2326 |
| 490 | Cardiopulmonary Resuscitation | 2 | 31 | 253 | 160 |
| 490 | cardiac arrest | 2 | 31 | 253 | 160 |
| 490 | men | 2 | 31 | 455 | 599 |
| 494 | Hydrology | 2 | 30 | 3566 | 3996 |
| 494 | Quality Control | 2 | 30 | 2711 | 3345 |
| 494 | Water | 2 | 30 | 3489 | 4739 |
| 494 | Health equity | 6 | 30 | 21 | 96 |
| 494 | Indigenous Peoples | 6 | 30 | 59 | 134 |
| 494 | Virology | 4 | 30 | 3489 | 6002 |
| 494 | Water quality management | 2 | 30 | 2698 | 3136 |
| 494 | Prognosis | 1 | 30 | 69 | 69 |
| 494 | Business Ethics | 1 | 30 | 1648 | 1842 |
| 494 | Water Microbiology | 2 | 30 | 731 | 1169 |
| 504 | Plant diseases | 4 | 29 | 2072 | 3011 |
| 505 | Engineering | 1 | 28 | 8385 | 6649 |
| 505 | Engineering Ethics | 1 | 28 | 473 | 469 |
| 505 | Professional ethics | 1 | 28 | 659 | 626 |
| 505 | Screening | 3 | 28 | 219 | 483 |
| 505 | biomedicine | 2 | 28 | 1464 | 2027 |
| 510 | Depression | 2 | 27 | 571 | 1127 |
| 510 | Foodborne diseases | 2 | 27 | 424 | 676 |
| 512 | Aerosols | 2 | 26 | 854 | 1119 |
| 512 | drug evaluation | 2 | 26 | 2069 | 2835 |
| 514 | Special Education | 1 | 24 | 1572 | 1214 |
| 514 | Disability Studies | 1 | 24 | 625 | 526 |
| 516 | Food Policy | 1 | 23 | 777 | 990 |
| 516 | Public Administration | 5 | 23 | 1291 | 2114 |
| 516 | Neuropharmacology | 1 | 23 | 1262 | 1374 |
| 516 | psychopathology | 1 | 23 | 655 | 760 |
| 516 | China | 2 | 23 | 4319 | 5260 |
| 516 | Planets | 1 | 23 | 2610 | 3093 |
| 516 | Stress | 2 | 23 | 414 | 776 |
| 516 | world | 1 | 23 | 1500 | 1942 |
| 516 | Soil ecology | 1 | 23 | 1432 | 1757 |
| 525 | Renewable Energy Sources | 1 | 22 | 4540 | 5399 |
| 525 | peer review | 2 | 22 | 117 | 140 |
| 525 | scholarly publishing | 2 | 22 | 194 | 293 |
| 525 | toxicity testing | 1 | 22 | 1648 | 1904 |
| 525 | Menopause | 3 | 22 | 384 | 819 |
| 530 | economic policy | 4 | 21 | 2618 | 3576 |
| 530 | Drug delivery systems | 1 | 21 | 2888 | 3384 |
| 530 | Regional Development | 4 | 21 | 229 | 625 |
| 530 | blood transfusion | 3 | 21 | 1055 | 1735 |
| 530 | personality | 3 | 21 | 1599 | 2801 |
| 530 | built environment | 2 | 21 | 16 | 20 |
| 530 | biological evolution | 1 | 21 | 3922 | 4592 |
| 537 | Clinical Pharmacology | 1 | 20 | 2962 | 3235 |
| 537 | Music | 2 | 20 | 1438 | 1432 |
| 537 | community development | 3 | 20 | 673 | 1130 |
| 537 | voice | 2 | 20 | 757 | 1017 |
| 537 | Radiation | 2 | 20 | 3302 | 3988 |
| 537 | local government | 1 | 20 | 668 | 731 |
| 537 | Biomarkers | 1 | 20 | 1078 | 1166 |
| 537 | Parasitology | 1 | 20 | 4234 | 4439 |
| 537 | Vision | 1 | 20 | 1289 | 1561 |
| 537 | Parasites | 1 | 20 | 3013 | 3260 |
| 537 | Student Health Services | 2 | 20 | 395 | 634 |
| 537 | Fisheries | 1 | 20 | 3089 | 3016 |
| 537 | Aquatic ecology | 1 | 20 | 1879 | 1961 |
| 550 | Fungi | 2 | 19 | 1494 | 2251 |
| 551 | Botany | 1 | 18 | 6111 | 6639 |
| 551 | Dental Public Health | 2 | 18 | 272 | 437 |
| 551 | Behavioral research | 2 | 18 | 776 | 1201 |
| 551 | Sexual health | 6 | 18 | 633 | 1547 |
| 551 | anesthesia | 1 | 18 | 1338 | 1112 |
| 551 | educational planning | 1 | 18 | 854 | 941 |
| 551 | Growth | 1 | 18 | 2248 | 2836 |
| 558 | Transportation Engineering | 1 | 17 | 756 | 859 |
| 558 | Biopharmaceutics | 1 | 17 | 2524 | 2923 |
| 558 | Pharmacokinetics | 1 | 17 | 2087 | 2358 |
| 558 | Antibacterial agents | 2 | 17 | 1160 | 2144 |
| 558 | Adolescent Psychology | 2 | 17 | 1269 | 1936 |
| 558 | Genetic testing | 2 | 17 | 586 | 906 |
| 558 | Marriage | 1 | 17 | 1089 | 1226 |
| 558 | calcification | 1 | 17 | 1171 | 1544 |
| 558 | Transport | 1 | 17 | 1267 | 1615 |
| 558 | Bacterial infections | 3 | 17 | 1164 | 2603 |
| 558 | paraphilias | 1 | 17 | 405 | 567 |
| 558 | drinking water | 2 | 17 | 215 | 339 |
| 558 | Marriage counseling | 1 | 17 | 675 | 843 |
| 558 | Multiple sclerosis | 5 | 17 | 549 | 1282 |
| 572 | Regional Planning | 2 | 16 | 2201 | 2886 |
| 572 | Dialysis | 4 | 16 | 145 | 250 |
| 572 | housing policy | 2 | 16 | 169 | 288 |
| 572 | Kidney transplantation | 4 | 16 | 85 | 208 |
| 572 | Employee selection | 1 | 16 | 293 | 369 |
| 572 | Malaria | 4 | 16 | 769 | 1951 |
| 572 | prostaglandins | 1 | 16 | 980 | 1250 |
| 572 | enzymes | 1 | 16 | 2921 | 3563 |
| 580 | Economics | 1 | 15 | 6737 | 6102 |
| 580 | Feminism | 2 | 15 | 822 | 1076 |
| 580 | Asia | 3 | 15 | 3592 | 5404 |
| 580 | Germany | 2 | 15 | 1118 | 1022 |
| 580 | United Kingdom | 2 | 15 | 2581 | 3794 |
| 585 | Orthopedics | 1 | 14 | 3048 | 3467 |
| 585 | Family Therapy | 1 | 14 | 1476 | 1643 |
| 585 | child mental health | 1 | 14 | 944 | 1139 |
| 585 | Minority Health | 1 | 14 | 220 | 214 |
| 589 | Neurobiology | 1 | 13 | 3295 | 4167 |
| 589 | Clinical Biochemistry | 2 | 13 | 2127 | 3077 |
| 589 | General Surgery | 2 | 13 | 1199 | 1728 |
| 589 | Educational Research | 1 | 13 | 237 | 306 |
| 589 | Food Preservation | 1 | 13 | 1548 | 1731 |
| 589 | Hormones | 1 | 13 | 2605 | 3312 |
| 589 | land tenure | 1 | 13 | 170 | 282 |
| 589 | Land reform | 1 | 13 | 178 | 286 |
| 589 | Steroids | 1 | 13 | 1994 | 2554 |
| 589 | Israel | 3 | 13 | 160 | 246 |
| 599 | Computer-Aided Design | 1 | 12 | 2444 | 2753 |
| 599 | Disease management | 1 | 12 | 333 | 412 |
| 599 | Lymphoma | 3 | 12 | 1005 | 1085 |
| 599 | Multiple Myeloma | 3 | 12 | 1001 | 1060 |
| 599 | viruses | 1 | 12 | 2830 | 3829 |
| 599 | Methodology | 2 | 12 | 720 | 1180 |
| 599 | Cheminformatics | 1 | 12 | 789 | 1118 |
| 599 | weather | 1 | 12 | 1252 | 1774 |
| 607 | Analytical Chemistry | 1 | 11 | 7236 | 8361 |
| 607 | Geriatric Nursing | 1 | 11 | 1064 | 1267 |
| 607 | Economic Development | 1 | 11 | 3312 | 3854 |
| 607 | Analytical Biochemistry | 1 | 11 | 3430 | 4283 |
| 607 | Immunopharmacology | 1 | 11 | 2150 | 2812 |
| 607 | Technological Innovations | 2 | 11 | 1524 | 2623 |
| 607 | industrial relations | 1 | 11 | 1600 | 1762 |
| 614 | Urban Planning | 1 | 10 | 802 | 1140 |
| 614 | Astronomy | 1 | 10 | 4231 | 4836 |
| 614 | Signal Transduction | 1 | 10 | 2656 | 3609 |
| 614 | Multivariate Analysis | 1 | 10 | 931 | 1145 |
| 614 | Happiness | 2 | 10 | 621 | 1382 |
| 614 | Public opinion | 1 | 10 | 858 | 1226 |
| 614 | cell physiology | 1 | 10 | 2856 | 3942 |
| 614 | mathematical concepts | 4 | 10 | 357 | 1040 |
| 614 | Solar System | 1 | 10 | 1395 | 1702 |
| 623 | Cytology | 1 | 9 | 7190 | 8738 |
| 623 | Criminal Law | 2 | 9 | 399 | 631 |
| 623 | Urban Policy | 3 | 9 | 885 | 2215 |
| 623 | Hemostasis | 2 | 9 | 1315 | 2205 |
| 623 | Thrombosis | 3 | 9 | 1471 | 2923 |
| 623 | Immunohistochemistry | 1 | 9 | 478 | 577 |
| 623 | Action Research | 1 | 9 | 519 | 739 |
| 623 | Digestive system diseases | 4 | 9 | 1107 | 2671 |
| 631 | Adult Education | 2 | 8 | 868 | 1367 |
| 631 | Radiation Protection | 1 | 8 | 1547 | 1608 |
| 631 | Health Physics | 1 | 8 | 574 | 655 |
| 631 | Homelessness | 3 | 8 | 49 | 195 |
| 631 | radiation monitoring | 1 | 8 | 1393 | 1502 |
| 631 | Psychological Stress | 3 | 8 | 49 | 195 |
| 631 | Neurotransmitters | 1 | 8 | 1213 | 1196 |
| 631 | Technology | 1 | 8 | 7966 | 8876 |
| 631 | Stem cells | 1 | 8 | 3034 | 3949 |
| 631 | Nervous system | 2 | 8 | 3673 | 5993 |
| 631 | Statistical models | 2 | 8 | 163 | 373 |
| 631 | India | 2 | 8 | 2771 | 3445 |
| 643 | Law | 1 | 7 | 2912 | 2263 |
| 643 | Geology | 1 | 7 | 4974 | 5832 |
| 643 | Oceanography | 1 | 7 | 3118 | 4030 |
| 643 | Econometrics | 1 | 7 | 2373 | 2716 |
| 643 | nutrition policy | 2 | 7 | 138 | 379 |
| 643 | dual diagnosis | 1 | 7 | 239 | 358 |
| 643 | Organ transplantation | 1 | 7 | 862 | 1101 |
| 643 | exobiology | 1 | 7 | 707 | 1046 |
| 643 | vascular diseases | 2 | 7 | 1170 | 2144 |
| 643 | Cell death | 1 | 7 | 2231 | 3181 |
| 643 | race relations | 2 | 7 | 786 | 1320 |
| 654 | Artificial Intelligence | 1 | 6 | 6405 | 7642 |
| 654 | genre | 1 | 6 | 560 | 823 |
| 654 | Ethnic relations | 1 | 6 | 1220 | 1371 |
| 654 | Ethnic Conflict | 1 | 6 | 532 | 811 |
| 654 | Technology Assessment | 1 | 6 | 845 | 1611 |
| 654 | Raman spectroscopy | 1 | 6 | 1649 | 2395 |
| 654 | Entropy | 2 | 6 | 1617 | 2833 |
| 654 | Pacific Islands | 1 | 6 | 808 | 1169 |
| 654 | forced migration | 1 | 6 | 532 | 811 |
| 654 | Cost effectiveness | 1 | 6 | 189 | 353 |
| 654 | atmospheric models | 1 | 6 | 1239 | 1792 |
| 654 | Organelle biogenesis | 1 | 6 | 494 | 769 |
| 666 | Biostatistics | 1 | 5 | 479 | 619 |
| 666 | Pediatric Endocrinology | 1 | 5 | 814 | 1112 |
| 666 | Organizational Sociology | 1 | 5 | 669 | 1013 |
| 666 | Healing | 1 | 5 | 315 | 561 |
| 666 | Metabolic disorders in children | 1 | 5 | 741 | 1023 |
| 666 | Radicalism | 1 | 5 | 124 | 136 |
| 666 | Endocrine system | 1 | 5 | 1800 | 1282 |
| 666 | brain mapping | 1 | 5 | 1273 | 1899 |
| 666 | children | 2 | 5 | 812 | 1662 |
| 675 | Pharmacognosy | 1 | 4 | 3365 | 4744 |
| 675 | Erectile dysfunction | 1 | 4 | 609 | 960 |
| 675 | Genetic Research | 1 | 4 | 461 | 939 |
| 675 | Continuing Education | 1 | 4 | 902 | 1252 |
| 675 | Medicinal plants | 1 | 4 | 2807 | 3990 |
| 675 | Neuroendocrinology | 1 | 4 | 348 | 617 |
| 675 | Prisons | 2 | 4 | 483 | 965 |
| 675 | software | 1 | 4 | 2018 | 3159 |
| 683 | Emergency Nursing | 1 | 3 | 419 | 778 |
| 683 | Genetic engineering | 1 | 3 | 4189 | 5888 |
| 683 | Art Therapy | 1 | 3 | 465 | 844 |
| 683 | Molecular cloning | 1 | 3 | 2929 | 4220 |
| 683 | Genetic recombination | 1 | 3 | 2880 | 4169 |
| 683 | Infertility | 2 | 3 | 1676 | 2755 |
| 683 | pollutants | 1 | 3 | 3527 | 5090 |
| 683 | Teaching | 1 | 3 | 3444 | 4592 |
| 683 | Environmental pollutants | 1 | 3 | 4162 | 5858 |
| 683 | Recombinant DNA | 1 | 3 | 3054 | 4410 |
| 683 | fertility | 2 | 3 | 1783 | 2891 |
| 694 | Political Science | 1 | 2 | 3299 | 3894 |
| 694 | Early Childhood Education | 2 | 2 | 782 | 1647 |
| 694 | Feminist criminology | 1 | 2 | 123 | 281 |
| 694 | Community Health Nursing | 1 | 2 | 179 | 419 |
| 694 | Nonparametric Statistics | 1 | 2 | 387 | 631 |
| 694 | Machine Learning | 1 | 2 | 827 | 1326 |
| 694 | Career development | 1 | 2 | 875 | 1451 |
| 694 | Open Access Publishing | 1 | 2 | 201 | 335 |
| 694 | Electrophoresis | 1 | 2 | 3159 | 4627 |
| 694 | Crisis Intervention | 2 | 2 | 254 | 849 |
| 694 | Immunogenetics | 1 | 2 | 1562 | 2381 |
| 694 | Chromatography | 1 | 2 | 3141 | 4596 |
| 694 | gene therapy | 1 | 2 | 2374 | 3624 |
| 694 | Electrophysiology | 1 | 2 | 2321 | 3263 |
| 694 | Genetic therapy | 1 | 2 | 2533 | 3755 |
| 694 | Scandinavia | 1 | 2 | 1336 | 2139 |
| 694 | organization | 1 | 2 | 1423 | 2236 |
| 694 | administrative agencies | 1 | 2 | 606 | 919 |
| 694 | Spectrum analysis | 1 | 2 | 6926 | 8967 |
| 694 | Chromatographic analysis | 1 | 2 | 3573 | 5044 |
| 694 | Suicide | 2 | 2 | 849 | 2116 |
| 694 | Argentina | 1 | 2 | 424 | 455 |
| 716 | Dietetics | 3 | 1 | 1082 | 2624 |
| 716 | Cognitive Science | 1 | 1 | 2870 | 4437 |
| 716 | Cognitive Behavioral Therapy | 1 | 1 | 500 | 938 |
| 716 | Retinal diseases | 1 | 1 | 190 | 303 |
| 716 | behavior therapy | 1 | 1 | 1645 | 2630 |
| 716 | Social problems | 1 | 1 | 1230 | 2046 |
| 716 | Communication in politics | 1 | 1 | 555 | 1078 |
| 716 | Criminal investigation | 1 | 1 | 467 | 866 |
| 716 | Cognition | 1 | 1 | 3064 | 4680 |
| 716 | Emotions | 1 | 1 | 1098 | 1823 |
| 726 | Mathematics | 1 | 0 | 9290 | 11942 |
| 726 | Geometry | 1 | 0 | 2050 | 2721 |
| 726 | Public Health Informatics | 1 | 0 | 242 | 422 |
| 726 | Environmental Economics | 1 | 0 | 992 | 1844 |
| 726 | Political Ecology | 1 | 0 | 190 | 429 |
| 726 | big data | 1 | 0 | 1254 | 2382 |
| 726 | families | 1 | 0 | 1684 | 2872 |
| 726 | probabilities | 2 | 0 | 1720 | 3098 |
| 726 | mathematical analysis | 1 | 0 | 3639 | 4778 |
| 726 | recreation | 1 | 0 | 1269 | 2142 |
| 726 | Bones | 1 | 0 | 1864 | 2670 |
| 726 | Leisure | 1 | 0 | 678 | 1242 |
| 726 | Genes | 1 | 0 | 2359 | 3798 |
