For citations:

Kolesnikova I.Yu., Yashina L.A., Trubnikova P.I., Kayumova Sh.U. Digestive system diseases in the elderly: Symptoms and diagnostics (cross-sectional trial). Russian Journal of Geriatric Medicine. 2026;(1):107-114. (In Russ.) https://doi.org/10.37586/2686-8636-1-2026-107-114