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Abstract
Entities: Species
Mesh: See more » Africa/epidemiologyDisease EradicationDisease Outbreaks/prevention & controlEndemic Diseases/prevention & controlHumansMass VaccinationPoliomyelitis/epidemiologyPoliomyelitis/prevention & controlPopulation Surveillance
Year: 2012 PMID: 22474714
Source DB: PubMed Journal: Wkly Epidemiol Rec ISSN: 0049-8114