ATRIAL SEPTAL DEFECT OF OSTIUM PRIMUM TYPE; A CASE REPORT.
D000293:Adolescent; D054087:Atrial Septum; D004562:Electrocardiography; D006326:Heart Auscultation; D006343:Heart Septal Defects; D006344:Heart Septal Defects, Atrial; D006801:Humans
ADOLESCENCE; ELECTROCARDIOGRAPHY; HEART AUSCULTATION; HEART SEPTAL DEFECTS, ATRIAL