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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Ashford J. R. Smoking and the use of the health services. Br J Prev Soc Med. 1973 Feb;27(1):8–17. doi: 10.1136/jech.27.1.8. [DOI] [PMC free article] [PubMed] [Google Scholar]
