1. Department of Otolaryngology, School of Medicine, Taipei Medical University, Taipei 110, Taiwan
2. Department of Otolaryngology, Wan Fang Hospital, Taipei 110, Taiwan
3. International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
4. Department of Otorhinolaryngology, Taipei City Hospital, Taipei 110, Taiwan
5. Department of Speech, Language and Audiology, National Taipei University of Nursing and Health, Taipei 112, Taiwan
6. Department of Otolaryngology-Head and Neck Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
7. Center of General Education, University of Taipei, Taipei 112, Taiwan
8. Research Center of Sleep Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
9. Department of Medical Research, Taipei Veterans General Hospital, Taipei 112, Taiwan
10. Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan
11. Department of Economics, National Taipei University, New Taipei City 112, Taiwan
12. School of Health Care Administration, College of Management, Taipei Medical University, Taipei 110, Taiwan
13. Research Center of Sleep Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan