[1] Univ Gadjah Mada, Dr Sardjito Hosp, Fac Med, Pediat Surg Div,Dept Surg, Sleman, Yogyakarta, Indonesia
[2] Univ Gadjah Mada, Dr Sardjito Hosp, Fac Med, Dept Child Hlth, Sleman, Yogyakarta, Indonesia
[3] Univ Gadjah Mada, Dr Sardjito Hosp, Fac Med, Digest Surg Div,Dept Surg, Sleman, Yogyakarta, Indonesia
[4] Kyoto Univ Hosp, Dept Hepatobiliary Pancreat Surg & Transplantat, Kyoto 606, Japan