| Date | Event | Description |
|---|---|---|
| 14 March 2012 | New citation required but conclusions have not changed | Changes made to authorship. No changes made to conclusions |
| 14 March 2012 | New search has been performed | Results of 27 new studies involving 6567 participants added to the review. Total of 33 studies involving 6779 participants now included. 15 new ongoing studies also added. Modifications made to analysis method, types of stroke patients included, and outcome measures assessed (Differences between protocol and review) |
| 13 April 2008 | Amended | Review converted to new review format |
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