1. Department of Gastroenterology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
2. Department of Advanced Medical Technology, Kanazawa University Graduate School of Health Medicine, Kanazawa, Japan
3. Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
4. Department of Pathology, University of Washington School of Medicine, Seattle, WA, USA
5. The Tohkai Cancer Research and Prevention, Gifu, Japan