[1] IRCCS Osped San Raffaele, Milan, Italy
[2] Univ Vita Salute San Raffaele, Head Gastroenterol & Gastrointestinal Endoscopy U, Milan, Italy
[3] Univ Miami, Gastroenterol Div, Miller Sch Med, Miami, FL USA
[4] Atlanta Gastroenterol Associates LLC, IBD Res, Atlanta, GA USA
[5] Bristol Myers Squibb, Clin Res, Princeton, NJ USA
[6] Inflammatory Bowel Dis Clin, IBD Res, Edmonton, AB, Canada
[7] Univ Cincinnati, Gastroenterol, Coll Med, Cincinnati, OH USA