[EXPERIMENTAL BASES FOR THE ERADICATION OF POLIOMYELITIS AND PROSPECTS FOR ITS PRACTICAL ACHIEVEMENT].
D000124:Achievement; D006801:Humans; D011051:Poliomyelitis; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
POLIOMYELITIS; POLIOVIRUS VACCINE, ORAL
BASE SPERIMENTALSE PER L'ERADICAZIONE DELLA POLIOMIELITE E PROSPETTIVE PER IL SUO  RAGGIUNGIMENTO PRATICO.