title: The optimal age for repair of secundum atrial septal defect.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006344:Heart Septal Defects, Atrial / Q000601:surgery*; D006801:Humans