1. La vacuna: el paso decisivo Publication: Mexico : Sector Salud, 1986 Subject(s): Poliomyelitis -- prevention & controlChild, PreschoolInfantMass VaccinationPoliovirus Vaccines -- administration & dosage
2. Contra el sarampión, la vacuna es protección Publication: Mexico : Sector Salud, 1986 Subject(s): Measles -- prevention & controlInfantMass VaccinationMeasles Vaccine -- administration & dosage