RT Journal Article SR Electronic T1 Management of polycythaemia in adults with cyanotic congenital heart disease JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 315 OP 316 DO 10.1136/hrt.79.4.315 VO 79 IS 4 A1 S A THORNE YR 1998 UL http://heart.bmj.com/content/79/4/315.abstract AB