Electrocardiographic activity before onset of postoperative atrial fibrillation in cardiac surgery patients M Ovreiu, BG Nair, M Xu, MH Bakri, L Li, O Wazni, T Fahmy, J Petre, ... Pacing and clinical electrophysiology 31 (11), 1371-1382, 2008 | 15 | 2008 |