RT Journal Article SR Electronic T1 The unnatural history of tetralogy of Fallot: surgical repair is not as definitive as previously thought JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 447 OP 448 DO 10.1136/heart.88.5.447 VO 88 IS 5 A1 C van Doorn YR 2002 UL http://heart.bmj.com/content/88/5/447.abstract AB