1. Worldbank. World development report 2016. http://www.worldbank.org/en/publication/wdr2016
2. International Agency for Research on Cancer (IARC), GLOBOCAN 2012. Estimated cancer incidence: age-specific tables. http://globocan.iarc.fr/Pages/age-specific_table_sel.aspx
3. Management of prostate cancer in elderly patients: recommendations of a task force of the international society of geriatric oncology;Droz;Eur Urol,2017
4. International Society of Geriatric Oncology consensus on geriatric assessment in older patients with cancer;Wildiers;J Clin Oncol,2014
5. Fried frailty phenotype assessment components as applied to geriatric inpatients;Bieniek;Clin Interv Aging,2016