[1] Univ Fed Sao Paulo, Dept Gastroenterol, Sao Paulo, Brazil
[2] Humanitas Res Hosp, IBD Adv Visiting Fellowship, Milan, Italy
[3] Catholic Univ Parana, IBD Outpatient, Curitiba, Parana, Brazil
[4] Univ Calgary, IBD Adv Visiting Fellowship, Calgary, AB, Canada
[5] Humanitas Clin & Res Ctr, Div Colon & Rectal Surg, Rozzano, Italy
[6] Humanitas Res Hosp, IBD Ctr, Dept Gastroenterol, Milan, Italy
[7] Humanitas Univ, Dept Biomed Sci, Milan, Italy