PT - JOURNAL ARTICLE AU - LUKAS A. HOLZER AU - ANDREAS LEITHNER TI - An Unusual Cause of Low Back Pain AID - 10.3899/jrheum.140788 DP - 2015 Mar 01 TA - The Journal of Rheumatology PG - 549--550 VI - 42 IP - 3 4099 - http://www.jrheum.org/content/42/3/549.short 4100 - http://www.jrheum.org/content/42/3/549.full SO - J Rheumatol2015 Mar 01; 42