Low Back Pain in Adolescents With Inflammatory Arthritis Can Be Due to Lumbar Spine Apophyseal Joint Inflammation, and This Requires Contrast Enhancement for Adequate Assessment: Comment on the Article by Weiss et al. Issue 1 (January 2016) - Bray, Timothy P.; Vendhan, Kanimozhi; Fisher, Corinne; Sen, Debajit; Ioannou, Yiannis; Hall‐Craggs, Margaret A.