1 Department of Emergency Medicine, Far Eastern Memorial Hospital, No 21, Sec 2, Nanya W Rd, Banqiao Dist, New Taipei City, 220, Taiwan.
2 Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan.
3 Department of Emergency Medicine, National Taiwan University Hospital Yun-Lin Branch, Douliu City, Taiwan.
4 Department of Emergency Medicine, Far Eastern Memorial Hospital, No 21, Sec 2, Nanya W Rd, Banqiao Dist, New Taipei City, 220, Taiwan. tangtang05231980@hotmail.com.