1 Department of Internal Medicine, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA.
2 Department of Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA.
3 IBD Center Division of Gastroenterology, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA; Department of Clinical and Experimental Medical Sciences, University of Udine School of Medicine, Udine, Italy.