Public health in private practice: the challenge of immunizing preschool children.
Rodewald
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D002675:Child, Preschool; D006297:Health Services Accessibility; D006801:Humans; D007114:Immunization / Q000191:economics / Q000706:statistics & numerical data; D017589:Immunization Programs / Q000458:organization & administration*; D007223:Infant; D007373:Interinstitutional Relations; D011331:Private Practice; D014481:United States