THE NARROW INFUNDIBULUM IN PULMONARY VALVULAR  STENOSIS: ITS PREOPERATIVE DIAGNOSIS BY ANGIOCARDIOGRAPHY.
D000293:Adolescent; D000790:Angiocardiography; D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures; D002648:Child; D003251:Constriction, Pathologic; D003937:Diagnosis, Differential; D010902:Pituitary Gland; D011666:Pulmonary Valve Stenosis; D013903:Thoracic Surgery
ADOLESCENCE; ANGIOCARDIOGRAPHY; CHILD; DIAGNOSIS, DIFFERENTIAL; HEART CATHETERIZATION; HEART SURGERY; PULMONARY VALVE STENOSIS