[1] Univ Hosp Padua, Dept Pediat, Div Pediat Surg, Padua, Italy
[2] Univ Hosp Padua, Dept Pediat, Div Radiol, Padua, Italy
[3] Univ Hosp Padua, Dept Pediat, Div Hematol Oncol, Padua, Italy
[4] Univ Hosp Padua, Div Gen Surg, Hepat Liver Transplantat Program, Padua, Italy
[5] Univ Hosp Padua, Inst Pathol, Padua, Italy
[6] Univ Childrens Hosp, Dept Pediat Surg, Childhood Liver Tumour Strategy Grp, SIOP, Bern, Switzerland