Naoya Yoshida1,2, Hideo Baba3. 1. Division of Translational Research and Advanced Treatment Against Gastrointestinal Cancer, Kumamoto University, Kumamoto, Japan. 2. Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. 3. Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. hdobaba@kumamoto-u.ac.jp.