1. Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University , Kyoto , Japan
2. Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry , Tokyo , Japan
3. Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control , Tokyo , Japan
4. Department of Cancer Epidemiology, Cancer Control Center, Osaka International Cancer Institute , Osaka , Japan