[1] Hosp Minist Interior & Adm, Dept Internal Med Cardiol Gastroenterol & Endocri, Szczecin, Poland
[2] Inst Clin & Expt Med, Hepatogastroenterol Dept, Prague, Czech Republic
[3] Univ Toronto, Dept Med, Toronto, ON, Canada
[4] Univ Toronto, Div Gastroenterol, Toronto, ON, Canada
[5] Univ Miami, Miller Sch Med, Dept Med, Div Digest Hlth & Liver Dis, Miami, FL 33136 USA
[6] Harvard Med Sch, Div Gastroenterol & Hepatol, Beth Israel Deaconess Med Ctr, Boston, MA 02115 USA
[7] Chinese Univ Hong Kong, Inst Digest Dis, Div Gastroenterol & Hepatol, Hong Kong, Peoples R China
[8] Case Western Reserve Univ, Cleveland Clin, Div Gastroenterol Hepatol & Nutr, Cleveland, OH 44106 USA
[9] Jeddah Univ, Dept Internal Med, Jeddah, Saudi Arabia
[10] John Hunter Hosp, Gastroenterol & Endoscopy, Newcastle, NSW, Australia
[11] John Hunter Hosp, Dept Gastroenterol, Newcastle, NSW, Australia
[12] Johns Hopkins Sibley Mem Hosp, Johns Hopkins Sch Med, Div Gastroenterol, Washington, DC USA
[13] Alicante Univ Gen Hosp, Alicante Inst Hlth & Biomed Res ISABIAL, Gastroenterol Dept, Alicante, Spain
[14] Univ Nacl Autonoma Mexico, Hosp Gen Dr Manuel Gea Gonzalez, Dept Gastrointestinal Endoscopy, Mexico City, DF, Mexico
[15] Univ New Mexico, Sch Med, Div Gastroenterol & Hepatol, Albuquerque, NM 87131 USA
[16] Med Univ Silesia, Dept Gastroenterol, Katowice, Poland
[17] Ludwig Maximilians Univ Munchen, Dept Med 2, Munich, Germany
[18] Univ Toronto, Dept Paediat, Hosp Sick Children, Div Gastroenterol Hepatol & Nutr, Toronto, ON, Canada
[19] Univ Toronto, Dept Paediat, Hosp Sick Children, Res & Learning Inst, Toronto, ON, Canada
[20] Univ Toronto, Wilson Ctr, Toronto, ON, Canada
[21] St Michaels Hosp, Li Ka Shing Knowledge Inst, Toronto, ON, Canada
[22] Univ Birmingham, Med & Dent Sci, Birmingham, W Midlands, England
[23] Univ Hosp Birmingham, Liver Unit, Birmingham, W Midlands, England