1) Department of Translational Research and Developmental Therapeutics against Cancer, Yamaguchi University School of Medicine, Ube, Japan
2) Department of Immunology, Yamaguchi University Graduate School of Medicine, Ube, Japan
3) Department of Gastroenterology, Chiba University Graduate School of Medicine, Chiba, Japan
4) Department of Pathology, Keio University School of Medicine, Tokyo, Japan
5) Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan

Shoichi Hazama¹⁾, Koji Tamada²⁾, Naoya Kato³⁾, Michiie Sakamoto⁴⁾, Hiroaki Nagano⁵⁾