| Date | Event | Description |
|---|---|---|
| 16 April 2012 | New search has been performed | Searches updated. Three new trials were included (Hatipoglu 2010; Hong‐yun 2007; Kohno 2011) and three new trials were excluded (Chokshi 2007; Ott 2008; Sujata 2008). After integrating the data from the new included studies, no significant changes were noted in any of the comparisons evaluated. Our conclusions and recommendations for further research remain unchanged |
| 14 September 2011 | New citation required but conclusions have not changed | A new author joined the team to lead the update of this review |
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