1. College of Medicine Soonchunhyang University Cheonan Korea
2. Nowon Eulji Medical Center Department of Internal Medicine Eulji University College of Medicine Seoul Korea
3. Department of Internal Medicine Korea University Hospital Seoul Korea
4. Gastroenterology and Hepatology Hanyang University College of Medicine Guri Korea
5. Department of Internal Medicine Hanyang University College of Medicine Seoul Korea
6. Division of Healthcare Technology Assessment Research National Evidence‐based Healthcare Collaborating Agency (NECA) Seoul Korea
7. Department of Internal Medicine Soonchunhyang University Bucheon Hospital Bucheon Korea