Efficacy of whooping-cough vaccines.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D010567:Pertussis Vaccine / Q000627:therapeutic use*; D013997:Time Factors; D014917:Whooping Cough / Q000517:prevention & control*
D010567:Pertussis Vaccine