1. School of Medicine, College of Medicine, Taipei Medical University, Taipei Taiwan
2. Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei Taiwan
3. School of Public Health, College of Public Health, Taipei Medical University, Taipei Taiwan
4. Department of Anesthesiology, Chung Shan Medical University Hospital, Taichung Taiwan
5. Institute of Medicine, Chung Shan Medical University, Taichung Taiwan
6. Division of Plastic Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei Taiwan
7. Cochrane Taiwan, Taipei Medical University, Taipei Taiwan