Health education--what messages, for whom?
D000293:Adolescent; D000328:Adult; D002648:Child; D002669:Child Welfare / Q000639:trends; D002675:Child, Preschool; D003906:Developing Countries; D006266:Health Education / Q000379:methods*; D006293:Health Promotion / Q000379:methods; D006801:Humans; D007223:Infant; D007231:Infant, Newborn