title: First line catheter ablation or drugs for paroxysmal atrial fibrillation?
mesh_terms: D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use*; D001281:Atrial Fibrillation / Q000628:therapy*; D017115:Catheter Ablation / Q000379:methods*; D006801:Humans; D016896:Treatment Outcome
chemical_list: D000889:Anti-Arrhythmia Agents