1 Division of Otolaryngology, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan. Electronic address: [email protected].
2 Department of Otolaryngology, Head and Neck Surgery, Yamagata University, Faculty of Medicine, Yamagata, Japan.
3 Department of Otolaryngology, Japanese Red Cross Society, Wakayama Medical Center, Wakayama, Japan.
4 Division of Otolaryngology, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan.
5 Division of Anatomy and Cell Biology, Tohoku Medical and Pharmaceutical University, Sendai, Japan.
6 Shino-Test Corporation, Sagamihara, Japan.
7 Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan.
8 Center for Medical Education, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan.
9 Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan.