title: Authors' response.
authors.affiliation: *Paediatric Surgery, University of Brescia, Presidio Ospedale dei Bambini, Brescia †Paediatric Hepatology, Gastroenterology, and Transplantation, Hospital Papa Giovanni XXIII, Bergamo, Italy.
authors.forename: Daniele
authors.initials: D
authors.lastname: Alberti
authors.forename: Lorenzo
authors.initials: L
authors.lastname: D'Antiga
mesh_terms: D006504:Hepatic Veno-Occlusive Disease / Q000601:surgery*; D006801:Humans; D011169:Portal Vein / Q000601:surgery*; D011170:Portasystemic Shunt, Surgical