title: Klinefelter syndrome associated with atrial septal defect and prolapse of the mitral valve.
mesh_terms: D000328:Adult; D006344:Heart Septal Defects, Atrial / Q000150:complications*; D006801:Humans; D007713:Klinefelter Syndrome / Q000150:complications*; D008297:Male; D008944:Mitral Valve Insufficiency / Q000150:complications*