1. Foundation for Promotion of Cancer Research. Cancer statistics in Japan-2015 Available at:
http://ganjoho.jp/reg_stat/statistics/stat/summary.html
(Accessed: 18 Jan 2017). (in Japanese) (2016).
2. Ministry of Health, Labour and Welfare. Annual Health, Labour and Welfare Report Available at:
http://www.mhlw.go.jp/english/wp/wp-hw9/index.html
(Accessed: 18 Jan 2017) (2015).
3. de Groot, P. & Munden, R. F. Lung cancer epidemiology, risk factors, and prevention. Radiol Clin North Am 50, 863–876 doi: 10.1016/j.rcl.2012.06.006 (2012).
4. Karimi, P., Islami, F., Anandasabapathy, S., Freedman, N. D. & Kamangar, F. Gastric cancer: descriptive epidemiology, risk factors, screening, and prevention. Cancer Epidemiol Biomarkers Prev 23, 700–713 doi: 10.1158/1055-9965.EPI-13-1057 (2014).
5. Giovannucci, E. Modifiable risk factors for colon cancer. Gastroenterol Clin North Am 31, 925–943 (2002).