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editorial

. 1991 Feb 2;302(6771):249–250. doi: 10.1136/bmj.302.6771.249

Prospective or retrospective: what's in a name?

J P Vandenbroucke

PMCID: PMC1668954 PMID: 1998787

249

Selected References

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

Fraser D. W. Epidemiology as a liberal art. N Engl J Med. 1987 Feb 5;316(6):309–314. doi: 10.1056/NEJM198702053160605. [DOI] [PubMed] [Google Scholar]
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