RT Journal Article SR Electronic T1 Spring Meeting, Southmead Hospital, Bristol, 21 and 22 March 1975 JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 743 OP 747 DO 10.1136/adc.50.9.743 VO 50 IS 9 YR 1975 UL http://adc.bmj.com/content/50/9/743.abstract AB