1. Department of Anesthesiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
2. Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
3. Anesthesiology and Health Policy Research Center, Taipei Medical University, Taipei 11031, Taiwan
4. Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
5. Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan