1. World Health Organization. Definition, diagnosis and classification of diabetes mellitus and its complications. Part 1: Diagnosis and classification of diabetes mellitus. 1999 Available from: https://apps.who.int/iris/handle/10665/66040
2. International Diabetes Federation. IDF Diabetes Atlas. 15th edition, International Diabetes Federation, Brussels, 2011
3. World Health Organization. WHO Diabetes Fact sheet N312. Available from: http://www.who.int/mediacentre/factsheets/fs312/en/
4. The International Diabetes Federation diabetes atlas methodology for estimating global and national prevalence of diabetes in adults
5. Lifetime Costs of Complications Resulting From Type 2 Diabetes in the U.S.