Cardona, Francisco, Hanscy Seide, Rafael A. Cox, and Cynthia M. Pérez. 2011. “Effect of Right Atrial Pacing, Intravenous Amiodarone and Beta Blockers For Suppression of Atrial Fibrillation After Coronary Artery Bypass Surgery: A Pilot Study”. Puerto Rico Health Sciences Journal 22 (2). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/689.