For citations:
Alekseeva K.B., Kruchina T.K., Malyarova M.Sh., Novik G.A. Effectiveness of beta-blockers in the treatment of idiopathic premature ventricular contractions in children. Russian Journal of Cardiology. 2022;27(7):5117. (In Russ.) https://doi.org/10.15829/1560-4071-2022-5117