For citations:

Ostapenko V.S., Runikhina N.K., Sharashkina N.V. Prevalence of frailty and its correlation with chronic non-infectious diseases among outpatients in Moscow. Russian Journal of Geriatric Medicine. 2020;(2):131-137. (In Russ.) https://doi.org/10.37586/2686-8636-2-2020-131-137