%0 Journal Article %T Change in disease activity after vitamin D supplementation in children with systemic lupus erythematosus and juvenile dermatomyositis %A Robinson Angela B %A Wu Eveline Y %A Rabinovich Egla C %J Pediatric Rheumatology %D 2012 %I BioMed Central %R 10.1186/1546-0096-10-s1-a13 %U http://www.ped-rheum.com/content/10/S1/A13