Spencer, F C Long-term evaluation of aortic valvuloplasty for aortic insufficiency and ventricular septal defect. [electronic resource] - The Journal of thoracic and cardiovascular surgery Jan 1973 - 15-31 p. digital Publication Type: Journal Article ISSN: 0022-5223 Subjects--Topical Terms: Aortic Valve--surgeryAortic Valve Insufficiency--complicationsAortographyChildChild, PreschoolEvaluation Studies as TopicFollow-Up StudiesHeart Septal Defects, Ventricular--complicationsHeart Valve ProsthesisHumansInfantMethods