title: The role of devices in the closure of atrial septal defects in the oval fossa.
authors.forename: P G
authors.initials: PG
authors.lastname: Bjørnstad
mesh_terms: D006348:Cardiac Surgical Procedures / Q000295:instrumentation*; D006344:Heart Septal Defects, Atrial / Q000601:surgery*; D006801:Humans