[DISPENSARY OBSERVATION ON CHILDREN WITH FUNCTIONAL CARDIOVASCULAR CHANGES].
D002319:Cardiovascular System; D002648:Child; D004562:Electrocardiography; D006331:Heart Diseases; D006334:Heart Function Tests; D006801:Humans; D010701:Phonocardiography; D005082:Physical Exertion; D012214:Rheumatic Heart Disease
CHILD; ELECTROCARDIOGRAPHY; EXERTION; HEART DISEASES; HEART FUNCTION TESTS; PHONOCARDIOGRAPHY; RHEUMATIC HEART DISEASE