Supravalvular aortic stenosis. Unusual observations in three patients.
D000328:Adult; D000790:Angiocardiography; D001024:Aortic Valve Stenosis / Q000235:genetics / Q000473:pathology; D002114:Calcinosis / Q000150:complications; D002648:Child; D004200:Diseases in Twins; D004692:Endarteritis / Q000150:complications; D006345:Heart Septal Defects, Ventricular / Q000150:complications; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology