Puppala, M., K. K. Godisela, B. R. Geereddy, A. Chandrashaker, and R. Gangula. “Effect of Cinnamon and Its Procyanidin-B2 on Diabetic Retinopathy in Rats”. The Indian Journal of Nutrition and Dietetics, vol. 56, no. 2, Apr. 2019, pp. 109-23, doi:10.21048/ijnd.2019.56.2.23039.