Leachman, R D Association of ostium secundum atrial septal defects with mitral valve prolapse. [electronic resource] - The American journal of cardiology Aug 1976 - 167-9 p. digital Publication Type: Journal Article ISSN: 0002-9149 Standard No.: 10.1016/0002-9149(76)90144-2 doi Subjects--Topical Terms: AdolescentAdultAgedAngiocardiographyCineangiographyElectrocardiographyHeart MurmursHeart Septal Defects, Atrial--complicationsHeart Valve ProsthesisHumansMiddle AgedMitral Valve Insufficiency--complicationsPostoperative Complications--mortalityProspective StudiesRetrospective StudiesTexas