Reason for withdrawal from publication
The review authors were unable to update this work due to time constraints. The review was withdrawn from The Cochrane Library, issue 4, 2009.
The editorial group responsible for this previously published document have withdrawn it from publication.
What's new
| Date | Event | Description |
|---|---|---|
| 16 September 2008 | Amended | Converted to new review format. |
Sources of support
Internal sources
Department of General Practice and Primary Health Care ‐ University of Ghent ‐ Belgium, Belgium.
External sources
No sources of support supplied
Withdrawn from publication for reasons stated in the review