[1] Kitasato Univ, Sch Med, Dept Gen Pediat & Hepatobiliary Pancreat Surg, Sagamihara, Kanagawa, Japan
[2] Kitasato Univ, Sch Med, Res & Dev Ctr New Med Frontiers, Dept Adv Med,Div Pediat Surg, Sagamihara, Kanagawa, Japan
[3] Kitasato Univ, Sch Med, Dept Pathol, Sagamihara, Kanagawa, Japan
[4] Kitasato Univ, Sch Allied Hlth Sci, Dept Pathol, Sagamihara, Kanagawa, Japan