1Department of Gastroenterology, National University Health System, Singapore
2Harvard Macy Institute, Boston, MA, USA
1Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
2Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
Copyright © 2016 Korean Society of Gastrointestinal Endoscopy
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