1. Division of Gastroenterology; Department of Internal Medicine; Taichung Veterans General Hospital; Taichung Taiwan
2. National Yang-Ming University; Taipei Taiwan
3. Management Office for Health Data; China Medical University Hospital; Taichung Taiwan
4. Department of Nursing; Taichung Veterans General Hospital; Taichung Taiwan
5. Graduate Institute of Clinical Medical Science and School of Medicine; College of Medicine; China Medical University; Taichung Taiwan
6. Department of Nuclear Medicine and PET Center; China Medical University Hospital; Taichung Taiwan