Drupal-Bibcite31<style face="normal" font="default" size="100%">Incidence of live-attenuated influenza vaccine administration beyond expiry date in children and adolescents aged 2-17 years in the UK: a population-based cohort study</style><style face="normal" font="default" size="100%">Incidence of live-attenuated influenza vaccine administration beyond expiry date in children and adolescents aged 2-17 years in the UK: a population-based cohort study</style>