RT Journal Article SR Electronic T1 Mitral stenosis and atrial fibrillation JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 713 OP 713 DO 10.1136/heartjnl-2019-316282 VO 106 IS 10 A1 Dirk Westermann A1 Benedikt Schrage YR 2020 UL http://heart.bmj.com/content/106/10/713.abstract AB