title: Systems approaches and the delivery of health services.
authors.forename: R S
authors.initials: RS
authors.lastname: Thompson
mesh_terms: D002675:Child, Preschool; D003153:Community Health Services; D003695:Delivery of Health Care; D006801:Humans; D017589:Immunization Programs; D007223:Infant; D014481:United States; D014611:Vaccination / Q000706:statistics & numerical data*