[1] Kings Coll London, Inst Liver Studies, London, England
[2] Birmingham Childrens Hosp, Liver Unit, Birmingham, W Midlands, England
[3] Leeds Gen Infirm, Childrens Liver Unit, Leeds, W Yorkshire, England
[4] Cincinnati Childrens Hosp Med Ctr, Div Gastroenterol Hepatol & Nutr, Cincinnati, OH 45229 USA
[5] Univ Cincinnati, Coll Med, Dept Pediat, Cincinnati, OH USA
[6] Childrens Hosp Los Angeles, Div Gastroenterol Hepatol & Nutr, Los Angeles, CA 90027 USA
[7] Univ Southern Calif, Keck Sch Med, Dept Pediat, Los Angeles, CA USA
[8] Hop Femme Mere Enfant, Serv Hepatol Gastroenterol & Nutr Pediat, Bron, France
[9] Childrens Mem Hlth Inst, Dept Gastroenterol Hepatol Feeding Disorders & Pe, Warsaw, Poland
[10] Univ Colorado, Childrens Hosp Colorado, Sch Med, Sect Pediat Gastroenterol Hepatol & Nutr, Aurora, CO USA
[11] Shire, Lexington, MA USA
[12] Shire, Zug, Switzerland
[13] Univ Pittsburgh, Childrens Hosp Pittsburgh, Med Ctr, Pediat Gastroenterol Hepatol & Nutr, Pittsburgh, PA 15213 USA
[14] Univ Pittsburgh, Sch Med, Dept Pediat, Pittsburgh, PA 15261 USA
[15] Childrens Hosp Philadelphia, Div Gastroenterol Hepatol & Nutr, Philadelphia, PA 19104 USA
[16] Univ Penn, Dept Pediat, Perelman Sch Med, Philadelphia, PA 19104 USA