RT Journal Article SR Electronic T1 Safety in numbers: anaphylaxis risk in childhood immunisation JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 485 OP 486 DO 10.1136/archdischild-2012-301846 VO 97 IS 6 A1 Andrew Collinson YR 2012 UL http://adc.bmj.com/content/97/6/485.abstract AB