Date	Event	Description
25 August 2016	Feedback has been incorporated	Feedback addressed
22 April 2008	Amended	Converted to new review format
15 November 2005	Amended	Five possible trials awaiting assessment, 1 of which provides follow‐up data for Partsch 2000. For personal reasons, update has been delayed for 6 months. Now expected May 2006
15 November 2005	Feedback has been incorporated	Two comments added to the "Comments and criticism" section. A response will be added when the review is updated.
3 November 2004	Amended	Full article of Prandoni trial (Prandoni 2004) added to "Included studies" references
17 November 2003	New citation required and conclusions have changed	First review version