Department of Otolaryngology, Suita Municipal Hospital
2.Department of Otolaryngology, Higashiosaka City General Hospital
3.Department of Otolaryngology, Faculty of Medicine, Kagawa University
4.Osaka Rosai Hospital, Sakai, Japan
5.Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine
6.Department of Radiology, Osaka University Graduate School of Medicine
7.Department of Otorhinolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine (