[ON THE PHONOCARDIOGRAPHIC EXAMINATION OF  CHILDREN WITH RHEUMATISM].
D002648:Child; D006801:Humans; D010701:Phonocardiography; D012216:Rheumatic Diseases; D012213:Rheumatic Fever
CHILD; PHONOCARDIOGRAPHY; RHEUMATIC FEVER
O FONOKARDIOGRAFICHESKOM ISSLEDOVANIIA U DETEI PRI REVMATIZME.