Kenji Shibuya1, Stuart Gilmour2, Akira Oshima3. 1. Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan. Electronic address: shibuyak@m.u-tokyo.ac.jp. 2. Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan. 3. Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan.