Rigatelli, G Very long-term outcomes of transcatheter secundum atrial septal defect closure using intracardiac echocardiography without balloon sizing. [electronic resource] - Clinical radiology Sep 2019 - 732.e17-732.e22 p. digital Publication Type: Journal Article ISSN: 1365-229X Standard No.: 10.1016/j.crad.2019.05.017 doi Subjects--Topical Terms: AdultCardiac CatheterizationEchocardiography--methodsFemaleHeart Septal Defects, Atrial--diagnostic imagingHumansMaleSeptal Occluder DeviceTreatment OutcomeUltrasonography, Interventional