For citations:

Virstyuk Yu.V., Shugushev Z.H. CONTOURS OF PERFECTION: EVOLUTION OF TECHNIQUES AND OUTCOMES OF PULMONARY VEIN ISOLATION WITH A NEW CRYOBALLOON. Bulletin of Pirogov National Medical & Surgical Center. 2025;20(1):98-102. (In Russ.) https://doi.org/10.25881/20728255_2025_20_1_98