1. School of Nursing, College of Medicine, National Taiwan University, Taipei, Taiwan
2. Department of Nursing, National Tainan Junior College of Nursing, Tainan, Taiwan
3. Department of Nursing, National Taiwan University Cancer Center, Taipei, Taiwan
4. Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
5. College of Medicine, National Taiwan University, Taipei, Taiwan
6. National Taiwan University Hospital Hsin-Chu Branch, HsinChu, Taiwan