[1] Univ Amsterdam, Amsterdam UMC, Gastroenterol & Hepatol, Amsterdam, Netherlands
[2] Radboud Univ Nijmegen, Med Ctr, Gastroenterol & Hepatol, Nijmegen, Netherlands
[3] Hosp Clin Barcelona, IDIBAPS, CIBEREHD, Gastroenterol, Barcelona, Spain
[4] Radboud Univ Nijmegen, Med Ctr, Pathol, Nijmegen, Netherlands
[5] Netherlands Canc Inst, Gastroenterol & Hepatol, Amsterdam, Netherlands
[6] Antonius Hosp, Gastroenterol & Hepatol, Nieuwegein, Netherlands
[7] Hosp del Mar, Gastroenterol & Hepatol, Barcelona, Spain
[8] Hosp Univ Bellvitge, Gastroenterol & Hepatol, Barcelona, Spain
[9] Erasmus MC, Gastroenterol & Hepatol, Rotterdam, Netherlands
[10] Univ Med Ctr Groningen, Gastroenterol & Hepatol, Groningen, Netherlands
[11] Hosp Donostia, Gastroenterol & Hepatol, San Sebastian, Spain