[Phonecardiographic features of atrial septal defect].
D054087:Atrial Septum; D006330:Heart Defects, Congenital; D006344:Heart Septal Defects, Atrial; D006346:Heart Septum; D006801:Humans; D010701:Phonocardiography
HEART DEFECTS, CONGENITAL; HEART SEPTUM ATRIAL; PHONOCARDIOGRAPHY