1. World Health Organization, Media Centre, Diabetes.
http://www.who.int/mediacentre/factsheets/fs312/en/
2. http://www.medicinenet.com/script/main/art.asp?articlekey=2974
3. https://www.britannica.com/science/diabetes-mellitus
4. American Diabetes Association, Diabetes Statistics, June 2012.
http://www.diabetes.org/diabetes-basics/diabetesstatistics/
5. http://www.who.int/topics/diabetesmellitus/en/