Epidemiology of congenital heart disease. Observations in 17,366 Denver school children.
D000293:Adolescent; D002648:Child; D003120:Colorado; D005007:Ethnology; D005260:Female; D006330:Heart Defects, Congenital / Q000453:epidemiology*; D006801:Humans; D008297:Male; D012961:Sociology