For citations:

Topolyanskaya S.V., Kostoeva Kh., Matsyuk N.V., Nalitkina A.A., Prokhorova I.N., Vasilyeva Yu.Yu., Dolotkazina E.N., Lytkina K.A., Melik-Oganjanyan G.Yu., Melkonyan G.G. Vitamin D and cognitive impairment in geriatric practice. Russian Journal of Geriatric Medicine. 2025;(2):164-166. (In Russ.) https://doi.org/10.37586/2686-8636-2-2025-164-166