[1] Univ Birmingham, NIHR Biomed Res Ctr, Inst Translat Med, Birmingham B15 2TT, W Midlands, England
[2] Univ Birmingham, NIHR Biomed Res Ctr, Inst Immunol & Immunotherapy, Birmingham, W Midlands, England
[3] Birmingham NHS Fdn Trust, Univ Hosp, Birmingham B15 2TT, W Midlands, England
[4] Univ Milan, Dept Gastroenterol, Spedali Civili Brescia, Milan, Italy
[5] Univ Milan, Dept Pathophysiol & Transplantat, Milan, Italy
[6] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Gastroenterol & Endoscopy Unit, Milan, Italy
[7] Univ Calgary, Cumming Sch Med, Dept Gastroenterol & Hepatol, Calgary, AB, Canada
[8] Humanitas Res Hosp, Inflammatory Bowel Dis Ctr, Dept Gastroenterol, Milan, Italy
[9] Iwate Med Univ, Dept Gastroenterol, Morioka, Iwate, Japan
[10] Allegheny Gen Hosp, Dept Gastroenterol, Pittsburgh, PA 15212 USA
[11] Cleveland Clin, Dept Gastroenterol Hepatol & Nutr, Cleveland, OH 44106 USA
[12] Helios HSK Wiesbaden, Dept Med, Wiesbaden, Germany
[13] Humanitas Univ, Dept Biomed Sci, Milan, Italy