Date	Event	Description
16 January 2012	New citation required and conclusions have changed	This updated review is based on an search carried out in May 2011. We have now included 15 studies and the weight of the evidence is greater. New authors have helped to update the review. We updated the search in June 2012 and added results to Studies awaiting classification for consideration in the next update.
31 December 2011	New search has been performed	Search updated in May 2011, eight new studies added with 437 mother and infant pairs. Subgroup analyses added for cord milking. Methods updated in line with the new Cochrane Handbook.
30 November 2009	Amended	Search updated. Thirteen reports added to Studies awaiting classification.
28 February 2009	Amended	Converted to new review format.
1 May 2008	New citation required and conclusions have changed	Substantive amendment.