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Vashist, Praveen, Suraj Singh Senjam, Vivek Gupta, Noopur Gupta, and Atul Kumar. "Definition of Blindness Under National Programme for Control of Blindness: Do We Need to Revise It?" Indian J Ophthalmol 2017.

Vashist, Praveen, et al. "Definition of Blindness Under National Programme for Control of Blindness: Do We Need to Revise It?" Indian J Ophthalmol 2017.