| Date | Event | Description |
|---|---|---|
| 29 January 2021 | New search has been performed | This is an update of the Cochrane Review with the same title published by Molyneaux et al. in 2014 (Molyneaux 2014). A new protocol was published in March 2020 to reflect advances in the area since publication of the previous review/protocol (Brown 2020). |
| 29 January 2021 | New citation required and conclusions have changed | 2 additional included studies and 2 ongoing studies added in this update. |
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