title: An attempt to correlate whooping cough frequency rates with proportion of vaccinated in a child population.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D010567:Pertussis Vaccine / Q000627:therapeutic use*; D012189:Retrospective Studies; D014586:USSR; D014917:Whooping Cough / Q000453:epidemiology* / Q000517:prevention & control
chemical_list: D010567:Pertussis Vaccine