Heart block in ankylosing spondylitis.
D001018:Aortic Diseases / Q000473:pathology*; D006327:Heart Block / Q000209:etiology* / Q000473:pathology / Q000628:therapy; D006329:Heart Conduction System / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013167:Spondylitis, Ankylosing / Q000150:complications*