| Date | Event | Description |
|---|---|---|
| 29 January 2020 | New citation required and conclusions have changed | Issue 2, 2020: 4 new studies added: Arcieri 2015; Jiang 2015; Mahdy 2013; NCT02396316 |
| 29 January 2020 | New search has been performed | Issue 2, 2020: Searches updated 22 March 2019 |
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