Registered title: Official record of an author's intent to prepare a Cochrane review on a specific topic, with oversight of a specific Cochrane Review Group. Registered title: Official record of an author's intent to prepare a Cochrane review on a specific topic, with oversight of a specific Cochrane Review Group.
Protocol: Detailed roadmap or plan for the preparation of a Cochrane review. This is found only in the full-text (subscribed) view of The Cochrane Library, and includes details of the research question and data extraction methods.
Review: The published review with methods, results, conclusions. The plain language summary (a short synopsis) and the abstract (a page or so) are found free-of-charge on Cochrane.org and TheCochraneLibrary.com, while the full-text version (including meta-analyses) is available only to subscribers of The Cochrane Library.
'New': Cochrane reviews or protocols appearing for the first time in the Cochrane Database of Systematic Reviews (the core database of The Cochrane Library). The database is pubished quarterly, and this 'new' flag dissapears with the release of the following issue.
'Updated': Cochrane reviews or protocols containing 'substantive updates' (as defined by the responsible review group) since the last issue. The date of these changes is reflected in the 'date of last substantive ammendment' appearing in the header of the review.
'Withdrawn': Sometimes reviews must be removed entirely from the database. Grounds for such removal can be viewed in the subscribed view of The Cochrane Library.
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