title: [Surgical treatment of elderly patients with atrial septal defect (secundum type)--studies of changes with age and the characteristics of the elderly (author's transl)].
mesh_terms: D000328:Adult; D000375:Aging; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged