1. Diabetes. World Health Organization (2018, October 30). Retrieved August 5, 2019, from https://www.who.int/news-room/fact-sheets/detail/diabetes
2. National Diabetes Statistics Report, 2017. Retrieved August 5, 2019, from https://www.cdc.gov/diabetes/pdfs/data/statistics/national-diabetes-statistics-report.pdf
3. The Wisconsin epidemiologic study of diabetic retinopathy XXIII: the twenty-five-year incidence of macular edema in persons with type 1 diabetes;Klein;Ophthalmology,2009
4. Population trends in the 10-year incidence and prevalence of diabetic retinopathy in the UK: a cohort study in the clinical practice research datalink 2004–2014;Mathur;BMJ Open,2017
5. The relationship of glycemic exposure (HbA1c) to the risk of development and progression of retinopathy in the diabetes control and complications trial;Diabetes,1995