1Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA;
2Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
3Department of Statistical Science, Duke University, Durham, North Carolina, USA;
4Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA;
5Health Sciences Library, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA;
6Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, Michigan, USA;
7Gastroenterology Section, VA Ann Arbor Healthcare System, Ann Arbor, Michigan, USA.
Correspondence: Andrew Moon, MD, MPH. E-mail: [email protected].
SUPPLEMENTARY MATERIAL accompanies this paper at https://links.lww.com/AJG/C682 and https://links.lww.com/AJG/C683
