Joo Kyung Park*, Yong Bum Yoon*, Yong-Tae Kim*, Ji Kon Ryu*, Won Jae Yoon*, Sang Hyub Lee*, Su-Jong Yu*, Hae Yeon Kang*, Jae Young Lee†, and Min Jung Park‡
Departments of *Internal Medicine, †Diagnostic Radiology, and ‡Health Care System Gangnam Center, Seoul National University Hospital, Seoul, Korea
Yong Bum Yoon
© The Korean Society of Gastroenterology, the Korean Society of Gastrointestinal Endoscopy, the Korean Society of Neurogastroenterology and Motility, Korean College of Helicobacter and Upper Gastrointestinal Research, Korean Association the Study of Intestinal Diseases, the Korean Association for the Study of the Liver, Korean Pancreatobiliary Association, and Korean Society of Gastrointestinal Cancer. All rights reserved.