1 Department of Anesthesiology, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan.
2 Department of Anesthesiology, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan; Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taipei, Taiwan; Department of Anesthesiology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taipei, Taiwan.
3 Department of Anesthesiology, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan. Electronic address: m99ane@gmail.com.