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Secondhand smoke (SHS) exposure before and after the implementation of the Tobacco Free Cities (TFC) initiative in five Chinese cities: a pooled cross-sectional study
OBJECTIVES: To assess the levels of secondhand smoke (SHS) exposure before and after the implementation of the Tobacco Free Cities (TFC) initiative. DESIGN: City-wide representative, cross-sectional surveys (Tobacco Questions for Surveys, TQS) were conducted in each participating city before and aft...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7778775/ https://www.ncbi.nlm.nih.gov/pubmed/33376183 http://dx.doi.org/10.1136/bmjopen-2020-044570 |