1. Department of Clinical Laboratory, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center
2. Department of Diagnostic Pathology, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center
3. Department of Gastroenterology, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center
4. Department of Surgery, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center
5. Honorary President, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center
6. Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University