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Effectiveness and cost of recruitment strategies for a community-based randomised controlled trial among rainwater drinkers
BACKGROUND: Community-based recruitment is challenging particularly if the sampling frame is not easily defined as in the case of people who drink rainwater. Strategies for contacting participants must be carefully considered to maximise generalisability and minimise bias of the results. This paper...
| Autores principales: | , , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2009
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2714857/ https://www.ncbi.nlm.nih.gov/pubmed/19604408 http://dx.doi.org/10.1186/1471-2288-9-51 |