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