1. Cancer Screening Center National Cancer Center Hospital Tokyo Japan
2. Division of Screening Technology, Center for Public Health Sciences National Cancer Center Hospital Tokyo Japan
3. Endoscopy Division National Cancer Center Hospital Tokyo Japan
4. Unit of Public Health and Preventive Medicine, School of Medicine Yokohama City University Yokohama Japan
5. Department of Health Economics and Outcomes Research, Graduate School of Pharmaceutical Sciences The University of Tokyo Tokyo Japan
6. Hepatobiliary and Pancreatic Surgery Division National Cancer Center Hospital Tokyo Japan