title: The natural course of atrial septal defect in adults--a still unsettled issue.
authors.forename: T O
authors.initials: TO
authors.lastname: Cheng
mesh_terms: D000328:Adult; D005500:Follow-Up Studies; D006344:Heart Septal Defects, Atrial / Q000401:mortality / Q000601:surgery*; D006801:Humans; D011183:Postoperative Complications / Q000401:mortality*; D012307:Risk Factors; D015996:Survival Rate