RT Journal Article SR Electronic T1 Post mortem examinations after cardiac surgery JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 761 OP 765 DO 10.1136/hrt.2006.092130 VO 93 IS 6 A1 M F Hickling A1 D E Pontefract A1 P J Gallagher A1 S A Livesey YR 2007 UL http://heart.bmj.com/content/93/6/761.abstract AB