title: [Ostium secundum type of interatrial septal defect: late postoperative observation of a group of 50 patients].
mesh_terms: D000293:Adolescent; D000328:Adult; D001775:Blood Circulation; D004185:Disability Evaluation; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography
vernacular_title: Ubytek przegrody miedzyprzedsionkowej typu ostium secundum: odległe obserwacje pooperacyjne grupy 50 chorych.