%0 Journal Article %A S Al-Naser %A J Judd %A N M P Clarke %T THE EFFECTS OF VITAMIN D DEFICIENCY ON THE NATURAL PROGRESSION OF PERTHES' DISEASE %D 2014 %J Orthopaedic Proceedings %P 7-7 %V 96-B %N SUPP_1 %R 10.1302/1358-992X.96BSUPP_1.BSCOS2013-007 %U https://doi.org/10.1302/1358-992X.96BSUPP_1.BSCOS2013-007 %K Children's orthopaedics