For citations:
Popova E.P., Bogova O.T., Puzin S.N., Sychyov D.A., Fisenko V.P. Effect of sotalol on heart rate variability in patients with atrial fibrillation (clinical observation). Medical alphabet. 2020;(2):32-36. (In Russ.) https://doi.org/10.33667/2078-5631-2020-2-32-36