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