1. Department of Otolaryngology-Head and Neck Surgery, Tottori University Faculty of Medicine, Yonago 683-8504, Japan
2. Department of Adult and Elderly Nursing, Tottori University Faculty of Medicine, Yonago 683-8504, Japan
3. Endocrinology and Metabolism, Department of Molecular Medicine and Therapeutics, Tottori University Faculty of Medicine, Yonago 683-8504, Japan