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Clean air is the key to clean lungs: Secondhand smoke is injurious to health
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2006
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1402272/ http://dx.doi.org/10.1186/1477-3163-5-7 |