title: [Spondylarthritis ankylopoietica or spondylitis posterior?].
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013166:Spondylitis / Q000000981:diagnostic imaging*; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging*
vernacular_title: Spondylarthritis ankylopoetica oder Spondylitis posterior?