[The Salk vaccine].
D011051:Poliomyelitis / Q000276:immunology*; D011054:Poliovirus Vaccine, Inactivated; D014611:Vaccination; D014612:Vaccines
D011054:Poliovirus Vaccine, Inactivated; D014612:Vaccines
POLIOMYELITIS/immunology; VACCINES AND VACCINATION
A vacina Salk.