1. Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan2Department of Emergency Medicine, National Taiwan University Hospital, Yunlin Branch, Douliou, Taiwan3Department of General Medicine, National Taiwan University Hospital
2. Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
3. Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
4. Department of Cardiovascular Surgery, National Taiwan University Hospital, Taipei, Taiwan.
5. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan