Date | Event | Description |
---|---|---|
9 February 2018 | New citation required but conclusions have not changed | Risk of bias of 24 included studies was assessed and included in this first update. Quality of evidence is graded overall and reported in five 'Summary of findings' tables. |
24 November 2017 | New search has been performed | Search findings were updated until 24 November 2017. The updated search failed to identify any new trials. |