1 Department of Emergency Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
2 Department of Emergency Medicine, National Taiwan University Hospital.
3 Department of Emergency Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Emergency Medicine, National Taiwan University Hospital, Yun-Lin Branch, Yun-Lin County, Taiwan.
4 Department of Emergency Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan; School of Medicine, Tzu Chi University, Hualien City, Taiwan.