title: Pursuing sinus rhythm in patients with persistent atrial fibrillation: when is it too late?
authors.forename: David J
authors.initials: DJ
authors.lastname: Wilber
mesh_terms: D001281:Atrial Fibrillation / Q000601:surgery*; D017115:Catheter Ablation; D006801:Humans; D013997:Time Factors; D016896:Treatment Outcome