[Present state of field experiments with oral attenuated live poliomyelitis vaccine].
D011051:Poliomyelitis / Q000276:immunology*; D011055:Poliovirus Vaccine, Oral; D012107:Research Design; D014613:Vaccines, Attenuated
D011055:Poliovirus Vaccine, Oral; D014613:Vaccines, Attenuated
POLIOMYELITIS/immunology