Present status of immunization against poliomyelitis (Salk vaccine versus living, attenuated virus).
D007114:Immunization; D019369:Life; D011051:Poliomyelitis / Q000276:immunology*; D011054:Poliovirus Vaccine, Inactivated; D014611:Vaccination
D011054:Poliovirus Vaccine, Inactivated
POLIOMYELITIS/immunology