[1] Hlth Sci Res Inst Germans Trias & Pujol IGTP, Childhood Liver Oncol Grp, Badalona, Spain
[2] Univ Barcelona, IDIBAPS, Hosp Clin, Liver Unit, Barcelona, Spain
[3] Hosp Valle De Hebron, Pathol Dept, Barcelona, Spain
[4] Univ Hosp La Paz, Pathol Dept, Madrid, Spain
[5] Univ Hosp La Paz, Pediat Oncol Dept, Madrid, Spain
[6] Hosp Valle De Hebron, Pediat Oncol Dept, Barcelona, Spain
[7] Hosp Valle De Hebron, Pediat Surg Dept, Barcelona, Spain
[8] Univ Hosp La Paz, Pediat Surg Dept, Madrid, Spain
[9] Catalan Inst Oncol ICO, Translat Res Lab, Bellvitge, Spain
[10] CIBER, Hepat & Digest Dis, Barcelona, Spain