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. 2006 Oct 31;3(10):e425. doi: 10.1371/journal.pmed.0030425

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© 2006 Boutron et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Table 1.

Characteristics of the Articles Selected for Assessing Blinding in RCTs