title: Columnar-lined Esophagus: Its Prevalence and Predictors in Patients With Gastroesophageal Reflux Disease (Am J Gastroenterol 2012;107:1655-1661).
authors.affiliation: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors.forename: Gwang Ha
authors.initials: GH
authors.lastname: Kim