1. School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
2. School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
3. Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan
4. Division of General Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
5. Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan