1. Department of Respiratory Medicine National Hospital Organization Yonago Medical Centre Tottori Japan
2. Division of Otolaryngology, Head and Neck Surgery, Department of Sensory and Motor Organs, School of Medicine Tottori University Faculty of Medicine Tottori Japan
3. Division of Medical Oncology and Molecular Respirology, Department of Multidisciplinary Internal Medicine, School of Medicine Tottori University Faculty of Medicine Tottori Japan