1. Institute of MedicineChung Shan Medical University Taichung Taiwan
2. Department of Emergency Medicine School of Medicine Chung Shan Medical UniversityTaichung Taiwan
3. Department of Emergency MedicineChung Shan Medical University Hospital Taichung Taiwan
4. Department of Medical Research Chung Shan Medical University Hospital Taichung Taiwan
5. School of Medicine Chang Gung University Taoyuan City Taiwan
6. Department of Surgery Chung Shan Medical University Hospital Taichung Taiwan