[Psoriasis and ankylosing spondylitis].
D000844:Ankylosis; D006801:Humans; D011565:Psoriasis / Q000150:complications*; D013166:Spondylitis; D013167:Spondylitis, Ankylosing / Q000150:complications*
PSORIASIS/complications; SPONDYLITIS, ANKYLOSING/complications