HYPOPLASTIC ANNULUS--AN UNUSUAL TYPE OF AORTIC STENOSIS: A REPORT OF THREE CASES IN CHILDREN.
D001024:Aortic Valve Stenosis; D001795:Blood Pressure Determination; D006348:Cardiac Surgical Procedures; D002648:Child; D003933:Diagnosis; D004562:Electrocardiography; D006326:Heart Auscultation; D006801:Humans; D013902:Radiography, Thoracic; D013903:Thoracic Surgery
AORTIC VALVE STENOSIS; BLOOD PRESSURE DETERMINATION; CHILD; DIAGNOSIS; ELECTROCARDIOGRAPHY; HEART AUSCULTATION; HEART SURGERY; THORACIC RADIOGRAPHY