| Date | Event | Description |
|---|---|---|
| 13 June 2019 | New citation required but conclusions have not changed | This is an update of a Cochrane Review. The conclusions remain the same as the last published version (Esu 2014) |
| 13 June 2019 | New search has been performed | We updated the literature search to 7 September 2018 and included one new study. |
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