[1] Univ Childrens Hosp Queen Fabiola, Dept Pediat, Nutr & Metab Unit, Brussels, Belgium
[2] Bambino Gesu Childrens Hosp IRCCS, Dept Pediat Med, Div Metab, Rome, Italy
[3] UCL Inst Child Hlth, London WC1N 1EH, England
[4] Birmingham Childrens Hosp, Liver Unit, Birmingham B4 6NH, W Midlands, England
[5] CHU St Justine, Dept Pediat, Montreal, PQ H3T 1C5, Canada
[6] Bambino Gesu Childrens Hosp IRCCS, Dept Radiol, Unit Hepatobiliary Imaging, Rome, Italy
[7] Hop Robert Debre, Reference Ctr Inherited Metab Dis, F-75019 Paris, France
[8] Badalona Univ Autonoma Barcelona, Univ Hosp Germans Trias & Pujol, Sect Paediat Nephrol Genet & Metab, Dept Paediat, Catalonia, Spain
[9] Univ Childrens Hosp, Dept Pediat & Adolescent Med, D-79106 Freiburg, Germany