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Methodology

Posted by jdeese25 on 27 Sep 2011 at 15:30 GMT

n = 6
http://plosone.org/article/info:doi/10.1371/journal.pone.0022497#article1.body1.sec3.sec2.sec4.p1

It is highly plausible that the availability of a final report is related to closure status of the trials. If such a correlation exists, the results of this analysis may be biased.

No competing interests declared.