1 Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, North Carolina.
2 Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, North Carolina. Electronic address: ayako.suzuki@duke.edu.
3 Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia.
4 Department of Medicine, Yale University, New Haven, Connecticut; General Internal Medicine, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut.
5 Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, North Carolina; Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.
6 Department of Pathology, Duke University Medical Center, Durham, North Carolina.
7 Department of Biostatistics, Parexel International, Durham, North Carolina.