Relationship between right ventricular pacing and non-sustained ventricular arrhythmias in patients with dual-chamber pacemaker and normal range left ventricular ejection fraction oleh Rayan S. El-Zein, Anish K. Amin, Sreedhar R. Billakanty, Eugene Y. Fu, Allan J. Nichols, Steven D. Nelson, James M. Kleman, Gregory A. Kidwell, Nagesh Chopra