Persistent atrial fibrillation successfully treated with pulmonary vein cryoablation.: A case report. Actas Médicas (Ecuador), [S. l.], v. 33, n. S1, p. 4, 2023. DOI: 10.61284/152. Disponível em: https://actasmedicas.ec/index.php/am/article/view/152.. Acesso em: 30 apr. 2026.