RT Journal Article SR Electronic T1 Accuracy of clinical diagnosis in Down’s syndrome JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 691 OP 691 DO 10.1136/adc.2003.046565 VO 89 IS 7 A1 S Sivakumar A1 S Larkins YR 2004 UL http://adc.bmj.com/content/89/7/691.1.abstract AB