Sara El Ouali1, Hermann Kessler2, Bo Shen3. 1. Digestive Disease Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE. 2. Department of Colorectal Surgery, Digestive Disease and Surgery Institute, the Cleveland Clinic Foundation, Cleveland, Ohio, USA. 3. Interventional Inflammatory Bowel Disease (i-IBD) Unit, Digestive Disease and Surgery Institute, the Cleveland Clinic Foundation, Cleveland, Ohio, USA.