ABSTRACT
The Cochrane Library of Systematic Reviews is published quarterly as a DVD but monthly online (http://www.thecochranelibrary.com). The October 2012 issue (4th DVD for 2012) contains 5,277 complete reviews, 2,286 protocols for reviews in production, and almost 19,000 short summaries of systematic reviews published in the general medical literature. In addition, there are citations of 677,000 randomized controlled trials and 15,700 articles in the Cochrane methodology register. The health technology assessment database contains a little less than 11,000 citations. One hundred and twenty-seven new reviews have been published in the last 3 months of which five have potential relevance for practitioners in pain and palliative medicine. The impact factor of the Cochrane Library stands at 5.715. Readers are encouraged to access the full report for any articles of interest as only a brief commentary is provided.