Ankylosing spondylitis: aetiology.
D000328:Adult; D016918:Arthritis, Reactive / Q000150:complications; D003093:Colitis, Ulcerative / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D011565:Psoriasis / Q000150:complications; D013167:Spondylitis, Ankylosing / Q000209:etiology*; D014552:Urinary Tract Infections / Q000150:complications