| Date | Event | Description |
|---|---|---|
| 8 April 2019 | Amended | Correction made to Acknowledgements and Sources of support |
| 19 March 2019 | Amended | Correction made to Contact person's e‐mail address |
| 5 October 2016 | Feedback has been incorporated | Final revision to "reflexivity" section. |
| 24 September 2016 | Feedback has been incorporated | Updated with responses to peer review comments from SD, DH and CG. |
| 19 April 2016 | Amended | Draft protocol with feedback from authors. |
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