title: Reply.
authors.affiliation: Sezione di Gastroenterologia, Di.Bi.M.I.S, Università di Palermo, Palermo, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Petta
authors.affiliation: Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong.|State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong.
authors.forename: Vincent Way-Sun
authors.initials: VW
authors.lastname: Wong
authors.affiliation: Centre d'Investigation de la Fibrose Hépatique, Hôpital Haut-Lévêque, Bordeaux University Hospital, Pessac, France.
authors.forename: Victor
authors.initials: V
authors.lastname: de Ledinghen