RT Journal Article SR Electronic T1 Brittle or battered. JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 350 OP 352 DO 10.1136/adc.63.4.350 VO 63 IS 4 A1 H Carty YR 1988 UL http://adc.bmj.com/content/63/4/350.abstract AB