1. The Global Integrated Center for Colorectal Surgery and IBD Interventional Endoscopy, Columbia University Irving Medical Center/New York-Presbyterian Hospital , New York, NY, USA
2. Department of Pathology and Cell Biology, Columbia University Irving Medical Center/New York Presbyterian Hospital , New York, NY, USA
3. Division of Abdominal Radiology, Columbia University Irving Medical Center/New York Presbyterian Hospital , New York, NY, USA