The editorial group responsible for this previously published document have withdrawn it from publication.
Reason for withdrawal
This review is out of date and has been withdrawn. The content of the review may be of historical interest to readers. To view the published versions of this article, please click the 'Other versions' tab.
Last assessed as up-to-date: 18 May 1999.
Protocol first published: Issue 3, 1999
Review first published: Issue 3, 1999
Sources of support
- Oxford Pain Research funds, UK.
- Anglia & Oxford Regional Health Authority, UK.
- NHS Research & Development Cancer Programme, UK.
- European Union Biomed 2, UK.