Further studies with quadruple vaccine.
D004168:Diphtheria Toxoid; D006801:Humans; D007223:Infant; D009660:Northern Ireland; D010567:Pertussis Vaccine; D011054:Poliovirus Vaccine, Inactivated; D013745:Tetanus Toxoid; D014611:Vaccination
D004168:Diphtheria Toxoid; D010567:Pertussis Vaccine; D011054:Poliovirus Vaccine, Inactivated; D013745:Tetanus Toxoid