1. Departments of Clinical Studies
2. Departments of Statistics, Radiation Effects Research Foundation, Hiroshima, Japan
3. Departments of International University of Health and Welfare Clinic, Ohtawara, Japan
4. Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima, Japan
5. Department of Clinical Studies, Radiation Effects Research Foundation, Nagasaki Japan
6. Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
7. Department of Gastroenterology and Metabolism, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
8. Departments of Hiroshima Cancer Seminar Foundation, Hiroshima, Japan