RT Journal Article SR Electronic T1 Development of the atrial septum JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 481 OP 481 DO 10.1136/heartjnl-2015-309163 VO 102 IS 6 A1 Robert H Anderson YR 2016 UL http://heart.bmj.com/content/102/6/481.1.abstract AB