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1 Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland; National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland; Gastroenterology Section, VA Maryland Health Care System, Baltimore, Maryland.
2 Gastroenterology Section, VA Maryland Health Care System, Baltimore, Maryland; Department of Internal Medicine, University of Maryland Medical Center, Baltimore, Maryland.
3 Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland; Gastroenterology Section, VA Maryland Health Care System, Baltimore, Maryland.
1 Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland; National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland; Gastroenterology Section, VA Maryland Health Care System, Baltimore, Maryland.
2 Gastroenterology Section, VA Maryland Health Care System, Baltimore, Maryland; Department of Internal Medicine, University of Maryland Medical Center, Baltimore, Maryland.
3 Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland; Gastroenterology Section, VA Maryland Health Care System, Baltimore, Maryland.