Infectious diseases in children at two university hospitals in Korea in 1980.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003141:Communicable Diseases / Q000453:epidemiology*; D006784:Hospitals, Teaching; D006785:Hospitals, University; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007723:Korea; D012621:Seasons