1 Department of General Surgery, E-Da Cancer Hospital, Kaohsiung, Taiwan.
2 School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan.
3 Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan.
4 Department of Hospital and Health Care Administration, College of Recreation and Health Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
5 Department of Gastroenterology and Hepatology, E-Da Hospital, Kaohsiung, Taiwan.
6 College of Medicine, I-Shou University, Kaohsiung, Taiwan.
7 Department of Hematology and Oncology, E-Da Cancer Hospital, Kaohsiung, Taiwan.
8 Department of Medical Education and Research, E-Da Cancer Hospital, Kaohsiung, Taiwan.