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Abstract
Entities: Disease
Mesh: See more » AdolescentChildChild, PreschoolCross-Sectional StudiesDeveloping CountriesHumansImmunization ProgramsIncidenceInfantMuscle Hypotonia/epidemiologyMuscle Hypotonia/prevention & controlParalysis/epidemiologyParalysis/prevention & controlPoliomyelitis/epidemiologyPoliomyelitis/prevention & controlPopulation SurveillanceZimbabwe/epidemiology
Year: 1993 PMID: 8217577
Source DB: PubMed Journal: Wkly Epidemiol Rec ISSN: 0049-8114