| Date | Event | Description |
|---|---|---|
| 26 January 2015 | Feedback has been incorporated | Feedback and response added. Added two sensitivity analyses with imputations for responders and non‐responders to illustrate the feedback response. No changes made to review. |
| 26 January 2015 | Amended | Feedback added |
| 12 May 2014 | New citation required and conclusions have changed | No new literature search has been run. Information from a large randomised trial comparing the safety of Respimat with Handihaler delivery devices has been added to the review. This trial was ongoing at the time of publication of the last version of this review and we felt it had to be included in the review, although the review is not being updated with a new search at this time. |
| 6 June 2013 | Amended | Typo in QoL treatment effect in summary of findings table corrected. JC affiliation updated. Author affiliations updated. |
| 12 April 2013 | Amended | Funder acknowledgement added |
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