1. Department of Otorhinolaryngology, Odate Municipal General Hospital, Japan
2. Department of Clinical Laboratory, Odate Municipal General Hospital, Japan
3. Department of Gastroenterology-Hematology-Oncology, Odate Municipal General Hospital, Japan
4. Department of Surgery, Odate Municipal General Hospital, Japan
5. Department of Pharmacy, Odate Municipal General Hospital, Japan
6. Department of Pathology, Odate Municipal General Hospital, Japan
7. Department of Endocrinology-Metabolism-Neurology, Odate Municipal General Hospital, Japan
8. Department of Otorhinolaryngology-Head and Neck Surgery, Hirosaki University Graduate School of Medicine, Japan