APA (7th ed.) Citation

Yousef, H. S., Ahmed, M. E., Wafa, E. A. G. A. E., & Salih, M. A. K. Epidemiology and risk factors of diabetic retinopathy in upper Egypt: A 3-year prospective study. Wolters Kluwer Medknow Publications.

Chicago Style (17th ed.) Citation

Yousef, Hassan S., Mohamed E. Ahmed, Esam A. G. Abu El Wafa, and Mohamed A. K. Salih. Epidemiology and Risk Factors of Diabetic Retinopathy in Upper Egypt: A 3-year Prospective Study. Wolters Kluwer Medknow Publications.

MLA (9th ed.) Citation

Yousef, Hassan S., et al. Epidemiology and Risk Factors of Diabetic Retinopathy in Upper Egypt: A 3-year Prospective Study. Wolters Kluwer Medknow Publications.