[1] Western Univ, Childrens Hosp Western Ontario, Dept Pediat, Div Pediat Gastroenterol Hepatol & Nutr, London, ON, Canada
[2] Alimentiv Inc, Med R&D, London, ON, Canada
[3] Univ Toronto, Hosp Sick Children, Toronto, ON, Canada
[4] Great Ormond St Hosp Children NHS Fdn Trust, Dept Clin Radiol, London, England
[5] Hosp Clin Barcelona, Radiol Dept, IBD Unit, IDIBAPS, Barcelona, Spain
[6] McGill Univ, Montreal Childrens Hosp, Dept Pediat, Div Gastroenterol & Nutr, Montreal, PQ, Canada
[7] King Faisal Specialist Hosp & Res Ctr, Dept Radiol, Jeddah, Saudi Arabia
[8] Hebrew Univ Jerusalem, Shaare Zedek Med Ctr, Radiol Dept, Jerusalem, Israel
[9] Univ Calgary, Dept Med, Div Gastroenterol & Hepatol, Calgary, AB, Canada
[10] Univ Calgary, Dept Community Hlth Sci, Calgary, AB, Canada
[11] Western Univ, Dept Epidemiol & Biostat, London, ON, Canada
[12] Queensland Childrens Hosp, Dept Paediat Surg, Brisbane, Qld, Australia
[13] Massachusetts Gen Hosp, Dept Radiol, Boston, MA USA
[14] Harvard Med Sch, Dept Radiol, Boston, MA USA
[15] Connecticut Childrens Med Ctr, Div Pediat Surg, Hartford, CT USA
[16] Stanford Med, Dept Pediat, Div Pediat Gastroenterol Hepatol & Nutr, Stanford, CA USA
[17] Childrens Hosp, Med Ctr, Cincinnati, OH 45229 USA
[18] Univ Cincinnati, Coll Med, Dept Surg, Cincinnati, OH USA
[19] Univ Toronto, Mt Sinai Hosp, Dept Surg, Toronto, ON, Canada
[20] Childrens Hosp, Med Ctr, Cincinnati, OH 45229 USA
[21] Univ Cincinnati, Coll Med, Dept Pediat, Cincinnati, OH USA
[22] UCL, Ctr Med Imaging, London, England
[23] Mayo Clin, Dept Radiol, Rochester, NY USA
[24] Univ Toronto, Hosp Sick Children, IBD Ctr, Div Pediat Gastroenterol, Toronto, ON, Canada
[25] Western Univ, Dept Med, Div Gastroenterol, London, ON, Canada
[26] Hosp Sick Children, Dept Diagnost & Intervent Radiol, Toronto, ON, Canada
[27] Univ Toronto, Dept Med Imaging, Toronto, ON, Canada