1. Department of Head and Neck Surgery and Otolaryngology, Saitama Medical University International Medical Center
2. Department of Plastic, Reconstructive and Aesthetic Surgery, Kyorin University School of Medicine
3. Division of Fixed Prosthodontics, Department of Restorative & Biomaterials Sciences, Meikai University School of Dentistry
4. Department of Palliative Care, Internal Medicine Saitama Medical University International Medical Center
5. Department of Plastic Surgery, Saitama Medical University International Medical Center