title: Preschool diphtheria immunization status of a New York State community; a comparison of physician reporting with school entrance records as sources of basic data.
authors.forename: F R
authors.initials: FR
authors.lastname: FRECKLETON
mesh_terms: D004165:Diphtheria; D006801:Humans; D009518:New York; D012111:Residence Characteristics; D012574:Schools; D014611:Vaccination