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Booster vaccination with hexavalent DTPa-HBV-IPV/Hib vaccine in the second year of life is as safe as concomitant DTPa-IPV/Hib + HBV administered separately

VaccinationVaccine SafetyVaccine DevelopmentBooster VaccinationMedicineImmunologyHepatitisVirologyHexavalent Dtpa-hbv-ipv/hib VaccinePolyvalent VaccineSecond YearVaccine Research