1. Inflammatory Bowel Disease Center & Department of Surgery, Yokkaichi Hazu Medical Center, Yokkaichi, Japan
2. Division of Colon and Rectal Surgery, Humanitas Clinical and Research Center, Milano, Italy
3. Department of Colorectal Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
4. Department of Biomedical Sciences, Humanitas University, Milan, Italy
5. IBD outpatient clinics, Colorectal Surgery Unit, Catholic University of Parana (PUCPR), Curitiba, Brazil