title: US immunization system Rx: install new components.
authors.forename: E K
authors.initials: EK
authors.lastname: Marcuse
mesh_terms: D002669:Child Welfare; D002675:Child, Preschool; D006301:Health Services Needs and Demand; D006801:Humans; D007114:Immunization / Q000592:standards*; D011320:Primary Health Care / Q000592:standards*; D011785:Quality Assurance, Health Care