1. Department of Gastroenterological Surgery, Division of Cancer Medicine; Kanazawa University; Kanazawa Ishikawa Japan
2. Department of Histology and Embryology, Division of Cancer Medicine; Kanazawa University; Kanazawa Ishikawa Japan
3. Center for Biomedical Research, Graduate School of Medicine; Kanazawa University; Kanazawa Ishikawa Japan
4. Department of Histology, Faculty of Life Sciences; Kumamoto University; Kumamoto Japan