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Abstract
Entities: Disease
Mesh: See more » AdolescentChildChild, PreschoolEcuador/epidemiologyHumansImmunization Programs/statistics & numerical dataImmunization ScheduleInfantMeasles/epidemiologyMeasles/prevention & controlPoliomyelitis/epidemiologyPoliomyelitis/prevention & controlPoliovirus Vaccine, OralPopulation SurveillanceVietnam/epidemiology
Substances: See more » Poliovirus Vaccine, Oral
Year: 1995 PMID: 7654523
Source DB: PubMed Journal: Wkly Epidemiol Rec ISSN: 0049-8114