Early recurrence of atrial fibrillation after pulmonary vein isolation: a comparative analysis between cryogenic and contact force radiofrequency ablation. - Vaishnav AS; Levine E; Coleman KM; Beldner SJ; Chinitz JS; Bhasin K; Bernstein NE; Skipitaris NT; Mountantonakis SE (Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2020)