%0 Generic %B BMJ Open %D 2018 %P e023118 %R 10.1136/bmjopen-2018-023118 %T Evaluation of the safety of live attenuated influenza vaccine (LAIV) in children and adolescents with asthma and high-risk conditions: a population-based prospective cohort study conducted in England with the Clinical Practice Research Datalink %V 8