[1] Royal Childrens Hosp, Dept Gastroenterol, Brisbane, Qld, Australia
[2] Queensland Inst Med Res, Hepat Fibrosis Grp, Brisbane, Qld 4006, Australia
[3] Royal Brisbane Hosp, Dept Histopathol, Brisbane, Qld 4029, Australia
[4] Washington Univ, Sch Med, Dept Paediat, St Louis, MO USA
[5] Prince Charles Hosp, Dept Thorac Med, St Lucia, Qld, Australia
[6] Univ Queensland, Sch Vet Sci, St Lucia, Qld, Australia