1. Department of Radiation Oncology and Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
2. Department of Radiation Oncology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
3. Division of Colorectal Surgery, Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan
4. Department of Medical Genetics, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
5. Department of Nursing, Shu-Zen College of Medicine and Management, Kaohsiung, Taiwan
6. Department of Surgery, Faculty of Medicine, Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
7. Division of Gastroenterology and General Surgery and Cancer Center, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
8. Department of Public Health, College of Health Science, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
9. Department of Medical Research and Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan