1. Gastroenterology, Toyoshima Endoscopy Clinic
2. Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo
3. Department of Gastroenterology and Hepatology, International University of Health and Welfare, Narita Hospital
4. Pathology and Cytology Laboratory Japan
5. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine
6. Laboratory of Molecular Medicine, Human Genome Center, The Institute of Medical Science, The University of Tokyo
7. Laboratory of Clinical Genome Sequencing, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo