[1] Univ Hosp Padova, Dept Womens & Childrens Hlth, Pediat Infect Dis, Padua, Italy
[2] La Paz Univ Hosp, La Paz Inst Biomed Res IdiPAZ, Madrid, Spain
[3] Univ Hosp Padova, Dept Womens & Childrens Hlth, Pediat Nephrol Dialysis & Transplant Unit, Padua, Italy
[4] Univ Hosp Padova, Dept Womens & Childrens Hlth, Pediat Gastroenterol Digest Endoscopy Hepatol & C, Padua, Italy
[5] Univ Hosp Padova, Dept Womens & Childrens Hlth, Pediat Surg, Padua, Italy
[6] Univ Hosp Padova, Dept Womens & Childrens Hlth, Pediat Hematol Oncol & Stem Cell Transplant Div, Padua, Italy
[7] La Paz Univ Hosp, Pediat Hepatol Dept, Madrid, Spain
[8] La Paz Univ Hosp, Pediat Gastroenterol Intestinal Rehabil Unit, Madrid, Spain
[9] La Paz Univ Hosp, Pediat Nephrol Dept, Madrid, Spain
[10] La Paz Univ Hosp, Pediat Cardiol Dept, Madrid, Spain
[11] La Paz Univ Hosp, Pediat Hematooncol Dept, Madrid, Spain
[12] La Paz Univ Hosp, Pediat Pneumol Dept, Madrid, Spain
[13] Univ Lisbon, Hosp Santa Maria, Pediat Nephrol & Kidney Transplantat Unit, Dept Pediat,Fac Med, Lisbon, Portugal
[14] Ctr Hosp Porto, Ctr Materno Infantil Norte, Serv Pediat, Dept Pediat Nephrol, Porto, Portugal
[15] Ctr Hosp & Univ Coimbra, Dept Pediat Surg, Coimbra, Portugal
[16] Childrens Mem Hlth Inst, Dept Pediat Surg & Organ Transplantat, Warsaw, Poland
[17] Hosp Kremlin Bicetre, Dept Pediat Surg, Le Kremlin Bicetre, France
[18] Univ Paris 05, Hop Necker Enfants Malad, AP HP, Serv Pediat Nephrol, Paris, France
[19] Univ Paris Ctr, Hop Necker Enfants Malad, AP HP,Pediat Hepatol Unit, Reference Ctr Biliary Atresia & Genet Cholestasis, Paris, France
[20] ISMETT UPMC Palermo, Pediat Hepatol & Liver Transplantat, Palermo, Italy
[21] Karolinska Univ Hosp, Dept Transplantat Surg, Stockholm, Sweden
[22] Karolinska Inst, Karolinska Univ Hosp, CLINTEC, Dept Pediat Hepatol, Stockholm, Sweden
[23] Karolinska Univ Hosp, Dept Pediat Nephrol, Stockholm, Sweden
[24] Kings Coll Hosp London, Kings Coll London, Pediat Liver Gastrointestinal & Nutr Ctr, Sch Med, London, England
[25] Hannover Med Sch, Childrens Hosp, Div Pediat Gastroenterol & Hepatol, Hannover, Germany
[26] Hannover Med Sch, Clin Pediat Pneumol Allergol & Neonatol, Hannover, Germany
[27] Hosp Papa Giovanni XXIII, Ctr Pediat Hepatol Gastroenterol & Transplantat, Bergamo, Italy
[28] Bambino Gesu Children Hosp, Dept Gastroenterol & Hepatol, Rome, Italy
[29] Skane Univ Hosp, Dept Pediat, Sect Pediat Oncol Hematol, Lund, Sweden
[30] Univ Catholique Louvain UCLouvain, Inst Rech Expt & Clin, Unite PEDI, Lab Hepatol Pediat & Therapie Cellulaire, Brussels, Belgium
[31] Univ Catholique Louvain UCLouvain, Clin Univ St Luc, Dept Pediat, Serv Gastroenterol & Hepatol Pediat, Brussels, Belgium
[32] Prinses Maxima Ctr, Pediat Blood & Marrow Transplantat Program, Utrecht, Netherlands
[33] Vilnius Univ, Nephrol Ctr, Fac Med, Vilnius, Lithuania
[34] Vilnius Univ Hosp, Childrens Hosp, Ctr Pediat Oncol & Haematol, Vilnius, Lithuania