| Include All Subheadings (10511) |
| -- or choose one or more of these subheadings -- |
| /bl - Blood (311) | /mi - Microbiology (68) |
| /cf - Cerebrospinal Fluid (2) | /mo - Mortality (714) |
| /ci - Chemically Induced (610) | /nu - Nursing (162) |
| /cl - Classification (83) | /ps - Parasitology (55) |
| /co - Complications (1382) | /pa - Pathology (572) |
| /cn - Congenital (155) | /pp - Physiopathology (1416) |
| /di - Diagnosis (1763) | /pc - Prevention & Control (1145) |
| /dh - Diet Therapy (28) | /px - Psychology (279) |
| /dt - Drug Therapy (603) | /ra - Radiography (233) |
| /ec - Economics (115) | /ri - Radionuclide Imaging (239) |
| /em - Embryology (13) | /rt - Radiotherapy (5) |
| /en - Enzymology (57) | /rh - Rehabilitation (322) |
| /ep - Epidemiology (875) | /su - Surgery (1125) |
| /eh - Ethnology (75) | /th - Therapy (1038) |
| /et - Etiology (1893) | /us - Ultrasonography (1068) |
| /ge - Genetics (292) | /ur - Urine (2) |
| /hi - History (85) | /ve - Veterinary (107) |
| /im - Immunology (62) | /vi - Virology (34) |
| /me - Metabolism (323) | |
