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Appropriate and inappropriate methods for investigating the “gateway” hypothesis, with a review of the evidence linking prior snus use to later cigarette smoking
BACKGROUND: The “gateway hypothesis” usually refers to the possibility that the taking up of habit A, which is considered harmless (or less harmful), may lead to the subsequent taking up of another habit, B, which is considered harmful (or more harmful). METHODS: Possible approaches to designing and...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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BioMed Central
2015
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4369866/ https://www.ncbi.nlm.nih.gov/pubmed/25889396 http://dx.doi.org/10.1186/s12954-015-0040-7 |