1. Cancer statistics, 2018;Siegel;CA Cancer J Clin,2018
2. Key statistics for ovarian cancer. American Cancer Society. Available at: http://www.cancer.org/cancer/ovarian-cancer/about/key-statistics.html. Accessed May 1, 2018.
3. Cancer facts & figures 2018;American Cancer Society,2018
4. SEER cancer statistics review, 1975-2015,2016
5. Cancer incidence and mortality worldwide: sources, methods and major patterns in GLOBOCAN 2012;Ferlay;Int J Cancer,2015