title: [Echocardiographic assessment of cardiac function in secundum atrial septal defect for aged patients (author's transl)].
mesh_terms: D000328:Adult; D004452:Echocardiography; D006321:Heart / Q000503:physiopathology*; D006344:Heart Septal Defects, Atrial / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D011184:Postoperative Period