RT Journal Article SR Electronic T1 Antenatal diagnosis of heart disease JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 367 OP 367 DO 10.1136/heart.83.3.367 VO 83 IS 3 A1 Lindsey Allan YR 2000 UL http://heart.bmj.com/content/83/3/367.abstract AB