| Date | Event | Description |
|---|---|---|
| 31 August 2017 | New citation required but conclusions have not changed | Searches updated 30 June, 2017. One new RCT identified and included in analyses. |
| 31 August 2017 | New search has been performed | Searches updated 30 June, 2017, and review updated accordingly with one new randomised controlled trial included. Author byline changed. This updated review furthermore included trial sequential analysis (TSA) for the primary outcome, aiming to reduce the risk of random error in the setting of repetitive testing of accumulating data, thereby improving the reliability of conclusions. |
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