RT Journal Article SR Electronic T1 Heartbeat: The ongoing controversy of intervention for chronic total coronary occlusions JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1385 OP 1387 DO 10.1136/heartjnl-2018-313921 VO 104 IS 17 A1 Catherine M Otto YR 2018 UL http://heart.bmj.com/content/104/17/1385.abstract AB