1. Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
2. Department of Internal Medicine, Seoul National University Hospital Gangnam Center, Seoul, Korea
3. Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
4. Division of Gastroenterology, Department of Internal Medicine and Gastrointestinal Cancer Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
5. Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
6. Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
7. Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
8. Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
9. Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
10. Center for Gastric Cancer, Kyungpook National University Hospital Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
11. Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea
12. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
13. Center for Gastric Cancer, National Cancer Center, Goyang, Korea
14. Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
15. Division of Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Korea