Date | Event | Description |
---|---|---|
5 January 2012 | New search has been performed | Issue 2, 2012: Electronic searches were updated, risk of bias tables have been completed for all included trials and text modified. A new author joined the review team to assist with updating the review. |
5 January 2012 | New citation required but conclusions have not changed | Issue 2, 2012: Two new trials were included in the update (Abdou 2010; Stoller 2011). |