For citations:

Myasoedova S.E., Amiri E.I., Utkin I.V. Frailty in rheumatoid arthritis: prevalence, fenotype signs and associated factors. Rheumatology Science and Practice. 2023;61(5):569-575. (In Russ.) https://doi.org/10.47360/1995-4484-2023-569-575