1. Department of Anesthesiology Kaohsiung Medical University Hospital Kaohsiung Taiwan, Republic of China
2. Department of Anesthesiology Faculty of Medicine College of Medicine Kaohsiung Medical University Kaohsiung Taiwan, Republic of China
3. Department of Pharmacy Tajen University Pingtung Taiwan, Republic of China
4. Department of Medical Education and Research Kaohsiung Veterans General Hospital Kaohsiung Taiwan, Republic of China