1. Division of Gastroenterology; Department of Internal Medicine; Kaohsiung Veterans General Hospital and National Yang-Ming University; Kaohsiung Taiwan
2. Department of Pathology; Kaohsiung Veterans General Hospital and National Yang-Ming University; Kaohsiung Taiwan
3. Department of Nuclear Medicine; Kaohsiung Veterans General Hospital and National Yang-Ming University; Kaohsiung Taiwan
4. Kaoshiung Medical University Joint Center; National Sun Yat-Sen University; Kaohsiung Taiwan
5. Division of Gastroenterology; Department of Internal Medicine; Kaohsiung Municipal Hsiao-Kang Hospital and Kaohsiung Medical University Hospital; Kaohsiung Medical University; Kaohsiung Taiwan
6. Cancer Center; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
7. Institute of Biomedical Sciences; National Sun Yat-Sen University; Kaohsiung Taiwan