June 15, 2009 - Mayo Clinic received $48 million in grants from the National Heart, Lung and Blood Institute (NHLBI), a component of the National Institute of Health, and from industry partners for the Catheter Ablation Versus Anti-Arrhythmic Drug Therapy for Atrial Fibrillation (CABANA) Trial, designed to determine whether catheter ablation is more effective than drug therapy for the treatment of