1 Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, 301 St. Paul Place, Baltimore, MD, 21202, USA.
2 Capital Digestive Care, Chevy Chase, MD, USA.
3 Department of Anatomic Pathology, MedStar Health, Washington, DC, USA.
4 Melissa L. Posner Institute for Digestive Health & Liver Disease at Mercy Medical Center, Baltimore, MD, USA. rcross@mdmercy.com.