For citations:

Bykov A.V., Bykov A.V., Efimenko O.V., Vinnikov A.V. Development of cardiac conduction disorders in a patient receiving basic therapy for systemic collagenoses: а case report. Russian Journal of Cardiology. 2025;30(5S):6192. (In Russ.) https://doi.org/10.15829/1560-4071-2025-6192. EDN: BHWURL