Date	Event	Description
11 September 2013	Amended	Contact author's out‐of‐date email address removed and current email address and second affiliation added. Another author's affiliation also updated
7 November 2011	Amended	Correction made to the data relating to the Beissert 2007 study ('1000' mg MMF amended to '2000' mg MMF)
6 September 2010	New citation required but conclusions have not changed	Change in authorship
6 September 2010	New search has been performed	Review updated with 3 new studies
5 February 2010	New citation required but conclusions have not changed	New studies found and included or excluded, authors changed
5 February 2010	New search has been performed	Updated
8 August 2008	Amended	Converted to new review format
5 June 2008	New citation required but conclusions have not changed	New studies found and included or excluded
16 May 2005	New citation required and conclusions have changed	Substantive amendment
5 June 2003	New search has been performed	Minor update