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Abstract
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Keywords:
AmericasCommunicationDeveloped CountriesDeveloping CountriesEconomic FactorsEducationEuropeHealthHealth EducationKnowledge SourcesLatin AmericaMarketingNongovernmental OrganizationsNorthern EuropeNutritionOrganizationsPeer GroupsPeruPrimary SchoolsPromotionScandinaviaSchoolsSouth AmericaStudentsSummary ReportSweden