For citations:

Trotsyuk D.V., Zaripova Z.A., Medvedev D.S., Volkov A.O. The problem of preoperative assessment of patients of older age groups. Russian Journal of Geriatric Medicine. 2022;(3):161-167. (In Russ.) https://doi.org/10.37586/2686-8636-3-2022-161-167