1. Department of Internal Medicine and Liver Research Institute; Seoul National University College of Medicine; Seoul Korea
2. Department of Internal Medicine; Ewha Womans University School of Medicine; Seoul Korea
3. Department of Internal Medicine; Hanyang University College of Medicine; Seoul Korea
4. Department of Internal Medicine; Kyung Hee University College of Medicine; Seoul Korea
5. Department of Internal Medicine; Yonsei University College of Medicine; Seoul Korea
6. Center for Gastric Cancer; National Cancer Center; Goyang Korea
7. Department of Internal Medicine; Hallym University College of Medicine; Seoul Korea
8. Department of Preventive Medicine and Public Health; Ajou University School of Medicine; Suwon Korea
9. Steering Committee for Clinical Practice Guideline; Korean Academy of Medical Science; Seoul Korea