1. Department of Surgery, Kurume University School of Medicine, Kurume, Japan
2. Cancer Vaccine Center, Kurume University, Kurume, Japan
3. Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Kurume, Japan
4. Department of Molecular and Internal Medicine, Hiroshima University School of Medicine, Hiroshima, Japan
5. Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
6. Division of Pathology, Medical Center of Kurume University, Kurume, Japan