Anupama Sharma, Rahul Prasad, Archana Sinha, Abhishek Kumar Sinha, Jennifer Gagrai, and Varsha Bhagat, “Clinical Correlation of Conjunctival Vessel Width With Grades of Retinopathy in Diabetes Mellitus”, Int. J. Heal. Clin. Res., vol. 5, no. 1, pp. 747–749, Jan. 2022.