[1] Kyoto Univ, Grad Sch Med, Dept Pediat Surg, Kyoto, Japan
[2] Kyoto Univ, Grad Sch Med, Dept Pediat, Kyoto, Japan
[3] Amagasaki Gen Med Ctr, Dept Pediat Surg, Amagasaki, Hyogo, Japan
[4] Kyoto Univ, Grad Sch Med, Dept Human Hlth Sci, Kyoto, Japan
[5] Kyoto Univ, Ctr IPS Cell Res & Applicat, Kyoto, Japan