title: Reply to Walsh et al.
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Tomoki
authors.initials: T
authors.lastname: Kawai
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Eitaro
authors.initials: E
authors.lastname: Hiejima
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Hirotsugu
authors.initials: H
authors.lastname: Oda
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Kazushi
authors.initials: K
authors.lastname: Izawa
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yasumi
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Ryuta
authors.initials: R
authors.lastname: Nishikomori
authors.affiliation: Department of Surgery (Hepato-Biliary-Pancreatic and Transplantation), Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Shinya
authors.initials: S
authors.lastname: Okamoto
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Toshio
authors.initials: T
authors.lastname: Heike