1. Division of Gastroenterology; Department of internal Medicine; Kaohsiung Veterans General Hospital and National Yang-Ming University; Kaohsiung Taiwan
2. Cheng Shiu University; Kaohsiung Taiwan
3. Division of Gastroenterology; Department of Internal Medicine; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
4. Department of Pathology; Kaohsiung Veterans General Hospital and National Yang-Ming University; Kaohsiung Taiwan
5. Department of Nuclear Medicine; Kaohsiung Veterans General Hospital and National Yang-Ming University; Kaohsiung Taiwan