American Academy of Pediatrics Committee on Infectious Disease: Acellular pertussis vaccines: recommendations for use as the fourth and fifth doses.
D002648:Child; D002675:Child, Preschool; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000008:administration & dosage; D006801:Humans; D007223:Infant; D010567:Pertussis Vaccine / Q000008:administration & dosage* / Q000737:chemistry
D015721:Diphtheria-Tetanus-Pertussis Vaccine; D010567:Pertussis Vaccine