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Summary
No abstract available in PubMed .
Keywords:
Acquired Immunodeficiency Syndrome--prevention and controlAdolescentsAge FactorsAmericasClinic ActivitiesCommunicationCounselingDemographic FactorsDeveloped CountriesDiseasesEducationHealth EducationHiv InfectionsKnowledge SourcesNorth AmericaNorthern AmericaOrganization And AdministrationPeer GroupsPopulationPopulation CharacteristicsProgram ActivitiesProgramsProgress ReportSchoolsSecondary SchoolsSex EducationUnited StatesViral DiseasesYouth