RT Journal Article SR Electronic T1 Heartbeat: Echo anytime, anywhere by anyone? JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1 OP 2 DO 10.1136/heartjnl-2015-309050 VO 102 IS 1 A1 Catherine M Otto YR 2016 UL http://heart.bmj.com/content/102/1/1.abstract AB