Firpo, C Discrete subaortic stenosis (DSS) in childhood: a congenital or acquired disease? Follow-up in 65 patients. [electronic resource] - European heart journal Nov 1990 - 1033-40 p. digital Publication Type: Journal Article ISSN: 0195-668X Standard No.: 10.1093/oxfordjournals.eurheartj.a059631 doi Subjects--Topical Terms: Aortic Stenosis, Subvalvular--complicationsCardiac CatheterizationChildChild, PreschoolEchocardiographyFollow-Up StudiesHeart Defects, Congenital--complicationsHeart Septal Defects, Ventricular--complicationsHumansInfantInfant, NewbornPrognosis