CJCP     2012 14 (09):  653-656    ISSN: 1008-8830  CN: 43-1301/R Serum osteoprotegerin level in children with nephrotic syndrome and the effect of glucocorticoid on it LI Yu-Liu, WANG Hua Department of Pediatrics, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China. wanghua790230@sina.com Received: null  Revised: null  Online: null Supporting info