<Tr> <Th> </Th> <Td> 99039924 </Td> </Tr> <P> The Cochrane reviews take the format of full - length methodological studies . Cochrane researchers will perform searches of medical databases including MEDLINE, PubMed and EMBASE; a continually updated database of trials called the Cochrane Central Register of Controlled Trials (CENTRAL); hand searching, where researchers look through entire libraries of scientific journals by hand and; reference checking of obtained articles in order to identify studies that are relevant to the question they are attempting to answer . The quality of each study is carefully assessed using predefined criteria and evidence of weak methodology or the possibility that a study may have been affected by bias is reported in the review . </P> <P> Cochrane researchers then apply statistical analysis to compare the data of the trials . This creates a review of studies, or systematic review, giving a comprehensive view of the efficacy of a particular medical intervention . Finished reviews are available as a full report with diagrams, in condensed form or as a plain language summary, in order to provide for every reader of the review . </P> <P> According to Journal Citation Reports, The Cochrane Database of Systematic Reviews has a 2016 impact factor of 6.264, ranking 14th out of 154 in the category "Medicine, General & Internal category". Reviews are abstracted and indexed in the following bibliographic databases: Science Citation Index Expanded, Scopus, CINAHL, EMBASE, MEDLINE . </P>

What is the cochrane database of systematic reviews