| Date | Event | Description |
|---|---|---|
| 26 April 2013 | New citation required but conclusions have not changed | Review updated. Three trials were identified from the updated search, two were excluded (Mahawerawat 2010; Oguz 1998) and one is a report of an ongoing study (CORONIS 2007). |
| 28 February 2012 | New search has been performed | Search updated. |
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