[Asymmetrical incidence and the size of syndesmophytes in spondylrthritis ankylopoietica of the thoracic spine].
D006801:Humans; D015994:Incidence; D011859:Radiography; D013131:Spine; D013166:Spondylitis; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging*
SPONDYLITIS, ANKYLOSING/radiography