title: [ECG-alterations in atrial septal defects in childhood before and after surgery].
mesh_terms: D000293:Adolescent; D002037:Bundle-Branch Block / Q000175:diagnosis; D006332:Cardiomegaly / Q000175:diagnosis; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005112:Extracorporeal Circulation; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D011379:Prognosis
vernacular_title: Ekg-Veränderungen bei Vorhofseptumdefekten im Kindesalter vor und nach Operation.