1. Division of Cancer Epidemiology and Prevention Department of Preventive Medicine Aichi Cancer Center Research Institute Nagoya Japan
2. Department of Otorhinolaryngology, Head and Neck Surgery Nagoya City University Graduate School of Medical Sciences Nagoya Japan
3. Division of International Collaborative Research Center for Public Health Sciences National Cancer Center Tokyo Japan
4. Department of Epidemiology Nagoya University Graduate School of Medicine Nagoya Japan
5. Division of Cancer Information and Control Department of Preventive Medicine Aichi Cancer Center Research Institute Nagoya Japan
6. Division of Descriptive Cancer Epidemiology Nagoya University Graduate School of Medicine Nagoya Japan