The Pulmonary Venous Antrum in Patients with Persistent AF and Heart Failure - Electrophysiologic and Electroanatomic Mapping - Prabhu, S.; McLellan, A.; Voskoboinik, A.; Pathik, B.; Nalliah, C.; Azzopardi, S.; Lee, G.; Mariani, J.; Taylor, A.; Kalman, J.; Kistler, P. (Heart, lung & circulation, 2016)