For citations:

Le T.K., Nguyen M.N., Hoang T.H. Short‑to‑mid‑term follow‑up results of transcatheter closure of atrial septal defect in patients older than 60 years. Russian Journal of Cardiology. 2023;28(5):5238. https://doi.org/10.15829/1560-4071-2023-5238