American Diabetes Association
www.diabetes.org

Centers for Disease Control and Prevention
Diabetes-Successes and Opportunities for Population Based Prevention and Control At A Glance 2011
http://www.cdc.org/chronicdisease/resources/publications/AAG/ddt.htm

World Health Organization (WHO)
http://www.who.int/topics/diabetes_mellitus/en/

Mayo Clinic
http://www.mayoclinic.com/health/type-1-diabetes/DS00329/DSECTION=symptoms