1. Department of Gastroenterology, Graduate School of Medicine Chiba University Chiba Japan
2. Genome Analysis Center Yamanashi Prefectural Central Hospital Kofu Japan
3. Department of Gastroenterology Tokyo Women's Medical University Yachiyo Medical Center Yachiyo Japan
4. Division of Clinical Genetics and Proteomics, Department of Laboratory Medicine Chiba University Hospital Chiba Japan
5. Department of Molecular Pathology, Graduate School of Medicine Chiba University Chiba Japan
6. Department of Pathology Yamanashi Central Hospital Kofu Japan
7. Chiba University Chiba Japan
8. Tokyo University Tokyo Japan