PT - JOURNAL ARTICLE AU - ROBERT B.M. LANDEWÉ TI - Magnetic Resonance Imaging in the Diagnosis of Ankylosing Spondylitis: Be Aware of Gold Standards and Circularity AID - 10.3899/jrheum.091396 DP - 2010 Mar 01 TA - The Journal of Rheumatology PG - 477--478 VI - 37 IP - 3 4099 - http://www.jrheum.org/content/37/3/477.short 4100 - http://www.jrheum.org/content/37/3/477.full SO - J Rheumatol2010 Mar 01; 37