1. Non communicable diseases Fact sheet [ http://www.who.int/mediacentre/factsheets/fs355/en/ ]
2. Denton FT, Spencer BG. Chronic health conditions: changing prevalence in an aging population and some implications for the delivery of health care services. Can J Aging. 2010;29:11–21.
3. Bloom DE, Cafiero ET, Jané-Llopis E, Abrahams-Gessel S, Bloom LR, Fathima S, et al. The Global Economic Burden of Noncommunicable Diseases. Geneva: World economic forum; 2011.
4. Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, et al. Global and regional mortality from 235 causes of death for 20 age groups in, and 2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet. 1990;2012(380):2095–128.
5. Mathers C, Boerma T, Fat DM. The global burden of disease: 2004 update. switzerland: WHO; 2004.