doi: 10.1159/000514581. Online ahead of print. 1 Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan. 2 School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. 3 Department of Anesthesiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan. 4 Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.