title: COVER (cover of vaccination evaluated rapidly): 30.
authors.forename: J M
authors.initials: JM
authors.lastname: White
authors.forename: S
authors.initials: S
authors.lastname: Leon
authors.forename: N T
authors.initials: NT
authors.lastname: Begg
mesh_terms: D000367:Age Factors; D002675:Child, Preschool; D015331:Cohort Studies; D003140:Communicable Disease Control; D004739:England; D006801:Humans; D017589:Immunization Programs; D007223:Infant; D007494:Ireland; D014611:Vaccination / Q000706:statistics & numerical data*; D014852:Wales