Skip to main content
. 2017 Jun 19;2017(6):CD006961. doi: 10.1002/14651858.CD006961.pub4
Date Event Description
19 March 2020 Amended Clarification statement added from Alan Smyth, Co‐ordinating Editor on 19 March 2020: This review was found by the Cochrane Funding Arbiters, post‐publication, to be noncompliant with the Cochrane conflict of interest policy, which includes the relevant parts of the Cochrane Commercial Sponsorship Policy. The review will be updated by April 2020; the authors of the future update will be free of conflicts.