^○Kenta Sasaki^1,2, Yoshifumi Matsumoto², Tatsuo Kanda³, Takashi Ishikawa⁴, Takuro Saiki², Qiliang Zhou², Masato Moriyama², Yasuo Saijo² (1.Department of Internal Medicine, Sanjo General Hospital, 2.Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, 3.Department of Surgery, Sanjo General Hospital, 4.Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences)