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Cohort study of electronic cigarette use: effectiveness and safety at 24 months
OBJECTIVE: To evaluate the safety and effectiveness of e-cigarettes, by comparing users of only e-cigarettes, smokers of only tobacco cigarettes and dual users. DESIGN: Prospective cohort study. We update previous 12-month findings and report the results of the 24-month follow-up. DATA SOURCES: Dire...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5520273/ https://www.ncbi.nlm.nih.gov/pubmed/27272748 http://dx.doi.org/10.1136/tobaccocontrol-2015-052822 |