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. 1992 Oct 31;305(6861):1097. doi: 10.1136/bmj.305.6861.1097-a

Confounding in epidemiological studies.

PMCID: PMC1883607 PMID: 1467708

1097

Selected References

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

Helmrich S. P., Ragland D. R., Leung R. W., Paffenbarger R. S., Jr Physical activity and reduced occurrence of non-insulin-dependent diabetes mellitus. N Engl J Med. 1991 Jul 18;325(3):147–152. doi: 10.1056/NEJM199107183250302. [DOI] [PubMed] [Google Scholar]
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