For citations:
Slonimskiy A.Yu., Slonimskiy Yu.B., Sitnik H.V., Myagkov A.V., Milash S.V. Pellucid Marginal Corneal Degeneration and Keratoconus: Differential Diagnosis and Management of Patients. Ophthalmology in Russia. 2019;16(4):433-442. (In Russ.) https://doi.org/10.18008/1816-5095-2019-4-433-441