1. Digestive Disease Center CHA Bundang Medical Center CHA University School of Medicine SeongnamKorea
2. Korea Textile Development Institute Daegu
3. Interventional Research Center M.I.Tech, Co. Ltd. PyeongtaekKorea
4. Department of Pathology CHA Bundang Medical Center CHA University School of Medicine SeongnamKorea
5. Division of Gastroenterology Department of Internal Medicine Inha University College of Medicine T2B Infrastructure Center for Digestive Disorders Incheon Korea