In the published article, there was an error in the Funding statement where in the funding source for author “Eleanor Longden” was omitted. The correct Funding statement appears below.
Funding
EL was funded by a National Institute for Health Research (NIHR) Development and Skills Enhancement Award (NIHR301598). This paper presents independent research funded by the NIHR: the views expressed are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
Publisher's note
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