APA (7th ed.) Citation

ScienceDirect (Online service), Suri, J. S., & El-Baz, A. S. (2020). Diabetes and retinopathy. Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Jasjit S. Suri, and Ayman S. El-Baz. Diabetes and Retinopathy. Amsterdam +: Elsevier, 2020.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Diabetes and Retinopathy. Elsevier, 2020.