Outcomes of radiofrequency catheter ablation for persistent and long-standing persistent atrial fibrillation André Azul Freitas; Pedro A. Sousa; Luís Elvas; Lino Gonçalves;

Catheter ablation of atrial fibrillation: What we can say after more than 20 years of worldwide experience Miguel Ventura;

Ablation of persistent atrial fibrillation: Pursuing different strategies for treating a progressive disease Luís Brandão;