Health education media in the world's developing countries.
D003142:Communication; D003695:Delivery of Health Care / Q000458:organization & administration*; D003906:Developing Countries; D006266:Health Education / Q000379:methods*; D007722:Health Knowledge, Attitudes, Practice; D057220:Health Literacy; D006801:Humans; D011361:Professional Competence; D016730:Program Development; D011634:Public Health; D013636:Tanzania; D006113:United Kingdom