RT Journal Article SR Electronic T1 Heart murmur in a young man JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 733 OP 770 DO 10.1136/heartjnl-2020-318834 VO 107 IS 9 A1 Alexander Perry Taylor A1 Deanna Hanson A1 Eric V Krieger YR 2021 UL http://heart.bmj.com/content/107/9/733.abstract AB