RT Journal Article SR Electronic T1 Persistent left with absent right superior vena cava JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 88 OP 88 DO 10.1136/hrt.2010.209585 VO 97 IS 1 A1 Wai-ee Thai A1 John Gelman YR 2011 UL http://heart.bmj.com/content/97/1/88.abstract AB