Heart disease screening in elementary school children.
D018376:Cardiovascular Abnormalities / Q000517:prevention & control*; D002319:Cardiovascular System; D006801:Humans; D008403:Mass Screening; D012214:Rheumatic Heart Disease / Q000517:prevention & control*; D012574:Schools
CARDIOVASCULAR DEFECTS, CONGENITAL/prevention and control; RHEUMATIC HEART DISEASE/prevention and control