Hossack, K F Congenital valvar aortic stenosis. Natural history and assessment for operation. [electronic resource] - British heart journal May 1980 - 561-73 p. digital Publication Type: Journal Article ISSN: 0007-0769 Standard No.: 10.1136/hrt.43.5.561 doi Subjects--Topical Terms: AdolescentAdultAortic Valve Stenosis--congenitalChildChild, PreschoolElectrocardiographyFollow-Up StudiesHemodynamicsHumansInfantPostoperative ComplicationsPrognosis