For citations:
Golovin A.S., Ovechkin I.G., Teshev A.F. Classification Features of Severe Stages of Proliferative Diabetic Retinopathy (Clinical Cases). Ophthalmology in Russia. 2024;21(1):167-171. (In Russ.) https://doi.org/10.18008/1816-5095-2024-1-167-171