1. Department of Emergency Medicine; National Taiwan University Medical College and Hospital; Taipei Taiwan
2. School of Health Care Administration; Taipei Medical University; Taipei Taiwan
3. Department of Internal Medicine; National Taiwan University Medical College and Hospital; Taipei Taiwan
4. Department of Emergency Medicine; Taoyuan General Hospital; Ministry of Health and Welfare; Taoyuan County Taiwan
5. Department of Emergency Medicine; Taipei Hospital; Ministry of Health and Welfare; Taipei Taiwan
6. Department of Emergency Medicine; Lotung Poh-Ai Hospital; Yilan County Taiwan