RT Journal Article SR Electronic T1 Challenges and management issues in adults with cyanotic congenital heart disease JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 720 OP 725 DO 10.1136/heartjnl-2015-308042 VO 102 IS 9 A1 Craig S Broberg YR 2016 UL http://heart.bmj.com/content/102/9/720.abstract AB