title: Authors' response.
authors.affiliation: 1st Department of Cardiology, Medical University of Warsaw. pawel@balsam.com.pl.
authors.forename: Paweł
authors.initials: P
authors.lastname: Balsam
authors.forename: Edward
authors.initials: E
authors.lastname: Koźluk
mesh_terms: D001281:Atrial Fibrillation / Q000601:surgery*; D017115:Catheter Ablation / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D011667:Pulmonary Veins / Q000601:surgery*