1. Department of Anesthesiology, Wexner Medical Center at The Ohio State University, Columbus, OH, USA
2. Department of Anesthesiology, Srinagarind Hospital, Faculty of Medicine, 123 Mitraparp Highways, Khon Kaen University, Khon Kaen 40002, Thailand
3. Department of Otolaryngology, Head and Neck Surgery, Wexner Medical Center at The Ohio State University, Columbus, OH, USA
4. Department of Otorhinolaryngology, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
5. Department of Neurological Surgery, Wexner Medical Center at The Ohio State University, Columbus, OH, USA