Reason for withdrawal from publication
This review has been withdrawn because a review author contravenes Cochrane's Commercial Sponsorship Policy. This policy ensures the independence of Cochrane reviews by making sure that there is no bias associated with commercial conflicts of interest in the conduct of Cochrane reviews. The author was employed by the biopharmaceutical company AstraZeneca and cannot say with certainty that the company did not produce or have any financial interest in the interventions in this review.
The editorial group responsible for this previously published document have withdrawn it from publication.
What's new
| Date | Event | Description |
|---|---|---|
| 2 June 2015 | Amended | This review is being withdrawn; a published note has been added. |
History
Protocol first published: Issue 3, 1999 Review first published: Issue 1, 2005
| Date | Event | Description |
|---|---|---|
| 8 August 2008 | Amended | Converted to new review format. |
Sources of support
Internal sources
Clinical Trials and Epidemiology Research Unit, Singapore.
Dermatology Centre, University of Manchester, Hope Hospital, Manchester, UK.
Lancaster University, UK.
External sources
No sources of support supplied
Withdrawn from publication for reasons stated in the review