Peculiar changes in the muscles of patients with ankylosing spondylitis.
D000844:Ankylosis; D006801:Humans; D009132:Muscles / Q000473:pathology*; D013166:Spondylitis; D013167:Spondylitis, Ankylosing / Q000473:pathology*
MUSCLES/pathology; SPONDYLITIS, ANKYLOSING/pathology