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Use of Non-Assigned Smoking Cessation Programs Among Participants of a Web-Based Randomized Controlled Trial
BACKGROUND: Concurrent with their enrollment in Web-based Randomized Controlled Trials (RCTs), participants can easily choose to use treatment programs that are not assigned in the study. The prevalence of using non-assigned treatments is largely unknown although it is likely to be related to the ex...
| Autores principales: | , , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Gunther Eysenbach
2009
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2762799/ https://www.ncbi.nlm.nih.gov/pubmed/19632976 http://dx.doi.org/10.2196/jmir.1172 |