RT Journal Article SR Electronic T1 Persistently high incidence of postcoronary bypass atrial fibrillation: possible mechanisms JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP heartjnl-2017-312627 DO 10.1136/heartjnl-2017-312627 A1 Nazem Akoum YR 2018 UL http://heart.bmj.com/content/early/2018/01/19/heartjnl-2017-312627.abstract AB