| 26 June 2014 |
New search has been performed |
Searches re‐run. No new studies included. |
| 26 June 2014 |
New citation required but conclusions have not changed |
Searches re‐run. No new studies included. Relevant review sections updated according to current Cochrane standards. Conclusions not changed. |
| 17 October 2011 |
New search has been performed |
New author added |
| 17 October 2011 |
New citation required but conclusions have not changed |
CAESAR and PIVOTAL results included in the analysis |
| 20 May 2008 |
New search has been performed |
ADAM trial results incorporated in analysis. CAESAR and PIVOTAL trials added to ongoing studies. |
| 8 April 2008 |
Amended |
Converted to new review format. |