Giddins, N G The natural course of supravalvar aortic stenosis and peripheral pulmonary artery stenosis in Williams's syndrome. [electronic resource] - British heart journal Oct 1989 - 315-9 p. digital Publication Type: Journal Article ISSN: 0007-0769 Standard No.: 10.1136/hrt.62.4.315 doi Subjects--Topical Terms: Abnormalities, MultipleAortic Valve Stenosis--physiopathologyBlood PressureChild, PreschoolFemaleHeart Defects, Congenital--physiopathologyHemodynamicsHumansInfantMalePulmonary Valve Stenosis--physiopathologySyndrome