Reason for withdrawal from publication
This review has been withdrawn because it has been found to be in breach of the Cochrane Commercial Sponsorship policy clause 2:
‘Individuals who are currently employed or where employed any time in the last three years by a company that has a real or potential financial interest in the outcome of the review (including but not limited to drug companies or medical device manufacturers); or who hold or have applied for a patent related to the review are prohibited from being Cochrane Review authors. In most cases, current or previous employment would be characterized by the affiliation statement made by the author at the title registration, protocol, or review stage of the review’.
The editorial group responsible for this previously published document have withdrawn it from publication.
History
Protocol first published: Issue 8, 2015 Review first published: Issue 9, 2017
| Date | Event | Description |
|---|---|---|
| 26 February 2018 | Amended | Significance of heterogeneity amended in Summary of Findings tables |
Sources of support
Internal sources
No sources of support provided
External sources
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Netherlands Organisation for Scientific Research, Netherlands
ES acknowledges past support from the Netherlands Organisation for Scientific Research grant 825.14.001.
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NIH, USA
AWB acknowledges past support from NIH grants DA020830, DA028793, DA033813 and DA041211, and a Visiting Professorship at the University of Bristol.
Withdrawn from publication for reasons stated in the review