Pertussis immunization.
Emerson
B P
BP
D000328:Adult; D002675:Child, Preschool; D006801:Humans; D010567:Pertussis Vaccine; D014481:United States; D014917:Whooping Cough / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission
D010567:Pertussis Vaccine