title: Symposium on pertussis immunization, in honor of Dr. Pearl L. Kendrick in her eightieth year: introduction.
mesh_terms: D049673:History, 20th Century; D006801:Humans; D010567:Pertussis Vaccine; D014481:United States; D014611:Vaccination; D014917:Whooping Cough / Q000517:prevention & control*
chemical_list: D010567:Pertussis Vaccine