Reason for withdrawal from publication
The review has been withdrawn from publication because it is out of date and the authors are currently not available for updating it
The editorial group responsible for this previously published document have withdrawn it from publication.
History
Protocol first published: Issue 4, 2006 Review first published: Issue 4, 2007
| Date | Event | Description |
|---|---|---|
| 6 September 2011 | Amended | Plain language summary amended |
| 3 December 2008 | Amended | corrected some minimal errors |
| 25 March 2008 | Amended | Converted to new review format. |
| 7 August 2007 | New citation required and conclusions have changed | Substantive amendment |
Sources of support
Internal sources
No sources of support supplied
External sources
Campbell Collaboration, Denmark.
Withdrawn from publication for reasons stated in the review