Accuracy of Geographically Targeted Internet Advertisements on Google Adwords for Recruitment in a Randomized Trial
BackgroundGoogle AdWords are increasingly used to recruit people into research studies and clinical services. They offer the potential to recruit from targeted control areas in cluster randomized controlled trials (RCTs), but little is known about the feasibility of accurately targeting ads by locat...
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| Autores principales: | , , , |
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| Formato: | Artigo |
| Lenguaje: | Inglês |
| Publicado: |
JMIR Publications
2012-06-01
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| Colección: | Journal of Medical Internet Research |
| Acceso en línea: | http://www.jmir.org/2012/3/e84/ |
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