1 Department of Emergency Medicine, Tri-Service General Hospital SongShan branch, National Defense Medical Center, Taipei, Taiwan; Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
2 Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
3 Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
4 Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
5 Department of Internal Medicine, Tri-Service General Hospital SongShan branch, National Defense Medical Center, Taipei, Taiwan.