1 Center for Esophageal Diseases and Swallowing, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
2 Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
3 Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
Correspondence: Evan S. Dellon MD, MPH, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina, CB#7080, Bioinformatics Building, 130 Mason Farm Road, UNC-CH, Chapel Hill, North Carolina 27599-7080, USA. E-mail: [email protected]
Received 8 September 2013; accepted 18 September 2013
published online 22 October 2013