title: Assessing immunization rates: the importance of denominators.
authors.forename: P M
authors.initials: PM
authors.lastname: Darden
mesh_terms: D000553:Ambulatory Care / Q000706:statistics & numerical data*; D002648:Child; D006801:Humans; D007114:Immunization / Q000706:statistics & numerical data*; D013223:Statistics as Topic