title: Variation in patient charges for vaccines.
authors.forename: P D
authors.initials: PD
authors.lastname: Rappo
authors.forename: S J
authors.initials: SJ
authors.lastname: Palfrey
mesh_terms: D002648:Child; D005252:Fees, Pharmaceutical; D006801:Humans; D008404:Massachusetts; D014612:Vaccines / Q000191:economics*
chemical_list: D014612:Vaccines