1. Division of Gastroenterology, Bon Secours Mercy Health and Virginia College of Osteopathic Medicine, Greenville, South Carolina, USA.
2. Department of Internal Medicine, University of Texas at Houston Medical Center, Houston, Texas, USA.
3. Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
4. Divisions of Abdominal Imaging and Nuclear Medicine, Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.