Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MEHMOOD F,Usefulness of live three-dimensional transthoracic echocardiography in the characterization of atrial septal defects in adults,Echocardiography,,,2004,21,8,707-713,https://cir.nii.ac.jp/crid/1571135650712841472,