[1] Keio Univ, Dept Pediat, Sch Med, 35 Shinanomachi,Shinjuku Ku, Tokyo 1608582, Japan
[2] Natl Res Inst Child Hlth & Dev, Dept Mol Endocrinol, Tokyo 1578535, Japan
[3] Juntendo Univ, Dept Pediat & Adolescent Med, Sch Med, Tokyo 1138421, Japan
[4] Kanagawa Childrens Med Ctr, Dept Endocrinol & Metab, Yokohama 2328555, Japan
[5] Keio Univ, Dept Urol, Sch Med, Tokyo 1608582, Japan
[6] Saitama Childrens Med Ctr, Div Med Genet, Saitama 3308777, Japan