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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Gray D. P. Research in general practice: law of inverse opportunity. BMJ. 1991 Jun 8;302(6789):1380–1382. doi: 10.1136/bmj.302.6789.1380. [DOI] [PMC free article] [PubMed] [Google Scholar]
