We will never have enough data, so we must do the best with what we acquire. Systematic reviews and meta-analyses of clinical trials represent one approach to maximizing the usefulness of clinical data. The Cochrane Collaboration thrives on the analyses of the results of tens of thousands of controlled trials in its database. The Collaboration bears the name of the British epidemiologist Archib...

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The Cochrane Collaboration is an international, non-profit making organisation which aims to help people make well-informed health care decisions. The main objective is to prepare, update, promote and facilitate access to systematic reviews on health care interventions. The main product is The Cochrane Library, a quarterly electronic publication. The principles and structure of the Cochrane Col...