For citations:
Sitkova E.S., Usenkov S.Yu., Batalov R.E., Mochula O.V., Stepanov I.V., Dragunova M.A., Moskovskikh T.V., Afanasyev S.A. Chronic myocarditis in patients with atrial fibrillation of unknown origin: diagnostic challenges and unresolved issues. Russian Journal of Cardiology. 2025;30(7):6242. (In Russ.) https://doi.org/10.15829/1560-4071-2025-6242. EDN: ENXIWO