Affiliation: | 1. Department of Otolaryngology ‐ Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan;2. Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan;3. Department of Medical Oncology and Hematology, Kobe University Graduate School of Medicine, Kobe, Japan;4. Department of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Japan |