[The use of the Sabin vaccine, of live poliomyelitis virus, in Mexico: results of a large scale study].
D008800:Mexico; D011051:Poliomyelitis / Q000276:immunology*; D017955:Poliovirus; D011055:Poliovirus Vaccine, Oral
D011055:Poliovirus Vaccine, Oral
POLIOMYELITIS/immunology