Cochrane Reviews should only be withdrawn under exceptional circumstances (i.e. for reasons other than those that can be described using the Updating Classification System), for example, if there is a concern about the conduct or reporting of the Cochrane Review:
Withdrawing a Cochrane Review generates a new citation version. For Cochrane Reviews, this includes a new entry in PubMed.
Protocols may be withdrawn for the same reasons as for reviews (see above) or for one of the following reasons:
Protocols that have not been converted into full Cochrane Reviews within two years of publication should generally be withdrawn from the CDSR.
Withdrawing a protocol for a Cochrane Review generates a new citation version.
Up to 16 December 2014, withdrawn protocols were removed from the CDSR after one issue of publication. From this date onwards, withdrawn protocols remain published to maintain the public record of publication and to complement the inclusion in PROSPERO.
The Editors may accept for publication a revised version of a Cochrane Review that addresses the issues raised in the withdrawn notice. Any such version will be re-evaluated using standard Cochrane editorial process, and may then be approved for publication (as a separate, subsequent version) in consultation with the Network Senior Editor.