RT Journal Article SR Electronic T1 ‘We can’t diagnose asthma until <insert arbitrary age>’ JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP archdischild-2017-314180 DO 10.1136/archdischild-2017-314180 A1 Andrew Bush A1 Ian Douglas Pavord YR 2018 UL http://adc.bmj.com/content/early/2018/01/05/archdischild-2017-314180.abstract AB