TAMURA Kazuo¹, UEDA Michihiro² (1.General Medical Research Center, Fukuoka University, 2.Clinical Oral Oncology, National Hospital Organization Hokkaido Cancer Center)

OTA Yoshihide, AOKI Takayuki, SASAKI Masashi, DENDA Yuya, UCHIBORI Masahiro, HASEGAWA Daigo, SETA Shohei, OSAWA Yuko (Depaetment of Oral and Maxillofacial Surgery, Tokai University, School of Medicine, Kanagawa, Japan)

NISHIJIMA Tomohiro (Geriatric Oncology Service, NHO Kyushu Cancer Center, Fukuoka, Japan)

YAMAMOTO Hiroshi (Tokyo Metropolitan Geriatric Hospital, Department of Respiratory Medicine)