1 Department of General Surgery, E-Da Cancer Hospital, Kaohsiung, Taiwan; College of Medicine, I-Shou University, Kaohsiung, Taiwan.
2 Department of Critical Care Medicine, E-Da Cancer Hospital, Kaohsiung, Taiwan; Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
3 Department of General Surgery, E-Da Cancer Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan. Electronic address: [email protected].