1. Division of Cancer Statistics Integration, Center for Cancer Control and Information Services, National Cancer Center
2. Center for Cancer Registries, Center for Cancer Control and Information Services, National Cancer Center
3. Department of Medical Statistics, Research & Development Center, Osaka Medical and Pharmaceutical University
4. Department of Cancer Epidemiology, Division of Social Medicine, Graduate School of Medicine, The University of Tokyo
5. Department of Hematology, National Cancer Center Hospital