Clinical efficacy of piracetam in cognitive impairment: a meta-analysis.
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Link to full study
http://www.ncbi.nlm.nih.gov/pubmed/12006732
Conclusion of this study
The results of the meta-analysis demonstrate a difference between those individuals treated with piracetam and those given placebo, both as significant odds ratio and as a favourable number needed to treat. While there may be problems in meta-analyses and the interpretation of the statistical results, the results of this analysis provide compelling evidence for the global efficacy of piracetam in a diverse group of older subjects with cognitive impairment.
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