RT Journal Article SR Electronic T1 Time is still muscle and there is still room for improvement JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 96 OP 97 DO 10.1136/heartjnl-2016-310167 VO 103 IS 2 A1 Keith G Oldroyd YR 2017 UL http://heart.bmj.com/content/103/2/96.abstract AB