[1] Chaim Sheba Med Ctr, Dept Gastroenterol, IL-52621 Tel Hashomer, Israel
[2] Tel Aviv Univ, Sackler Sch Med, IL-69978 Tel Aviv, Israel
[3] Barzilai Govt Hosp, Dept Gastroenterol, Ashqelon, Israel
[4] L Sacco Univ Hosp, Gastrointestinal Unit, Milan, Italy
[5] Civ Hosp, Gastrointestinal Unit, Padua, Italy
[6] Practice Gastroenterol, Mannheim, Germany
[7] Dr Falka Pharm GmbH, Freiburg, Germany
[8] Hosp St Marien, Med Hosp 2, Amberg, Germany