RT Journal Article SR Electronic T1 Drs Ewing and Davidson comment JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 207 OP 207 DO 10.1136/adc.61.2.207-a VO 61 IS 2 YR 1986 UL http://adc.bmj.com/content/61/2/207.2.abstract AB