1. Department of Otolaryngology–Head and Neck Surgery, Division of Sleep Surgery, Stanford University, Stanford, California, USA
2. Department of Otolaryngology, China Medical University Hospital, Taichung, Taiwan
3. Department of Anesthesiology, Stanford University, Stanford, California, USA
4. Department of Otolaryngology, Division of Sleep Surgery and Medicine, Tripler Army Medical Center, O’ahu, Hawaii, USA
5. Department of Psychiatry and Behavioral Sciences, Division of Sleep Medicine, Stanford University, Redwood City, California, USA