RT Journal Article SR Electronic T1 ‘Popcorn thrombus’: a case of massive intracardiac thromboembolism JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 520 OP 521 DO 10.1136/heartjnl-2013-304582 VO 100 IS 6 A1 Steven L Driver A1 Hayan Jouni A1 Robert B McCully YR 2014 UL http://heart.bmj.com/content/100/6/520.abstract AB