title: [A case of ankylosing spondylitis complicated with mitral regurgitation].
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000209:etiology*; D013167:Spondylitis, Ankylosing / Q000150:complications*