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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Marinker M. 2010. J R Coll Gen Pract. 1981 Sep;31(230):540–546. [PMC free article] [PubMed] [Google Scholar]







These references are in PubMed. This may not be the complete list of references from this article.