1. Department of Otolaryngology; Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine; Kaohsiung Taiwan
2. The Sleep Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine; Kaohsiung Taiwan
3. Department of Otolaryngology Advanced Center for Specialty Care; Advocate Illinois Masonic Medical Center; Chicago Illinois U.S.A
4. Department of Otolaryngology-Head and Neck Surgery; Division of Sleep Surgery; Rush University Medical Center; Chicago Illinois U.S.A