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Review
. 2012 May;3(3):181-3.

Threats to validity in retrospective studies

Cindy Tofthagen  1
Affiliations
Review

Threats to validity in retrospective studies

Cindy Tofthagen. J Adv Pract Oncol. 2012 May.
No abstract available

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Figures

Table 1
Table 1
Table 1. Common Threats to Internal Validity in Retrospective Studies
See this image and copyright information in PMC

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