1. Department of Public Health, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan.
2. Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
3. Division of Prevention, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan.
4. Division of Cancer Statistics Integration, Center for Cancer Control and Information Services, National Cancer Center, Tokyo, Japan.
5. National Cancer Registry Section Center for Cancer Registries Center for Cancer Control and Information Services/Office of International Affairs, Strategic Planning Bureau National Cancer Center, National Cancer Center, Tokyo, Japan.