| Date | Event | Description |
|---|---|---|
| 29 May 2019 | Amended | Contact details updated. |
| 20 May 2015 | Review declared as stable | This review will be re‐assessed for updating in 2020. See Published notes. |
| 20 December 2013 | Amended | Minor changes made to definitions of 24‐hour outcomes and Use of rescue medication in Appendix 1, and 95% confidence intervals added to NNTs in Abstract |
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