Reiter's disease and ankylosing spondylitis. Is there a common cause?
D000844:Ankylosis; D016918:Arthritis, Reactive / Q000209:etiology*; D006801:Humans; D013166:Spondylitis; D013167:Spondylitis, Ankylosing / Q000209:etiology*
REITER'S DISEASE/etiology; SPONDYLITIS, ANKYLOSING/etiology