Funding for this research was provided by:
NIHR Doctoral Fellowship awarded through Health and Care Research Wales (NIHR FS 2011)
Article History
Accepted: 5 November 2020
First Online: 26 November 2020
Declarations
:
: This paper presents independent research undertaken as part of an NIHR Doctoral Fellowship funded by the Welsh Assembly Government through Health and Care Research Wales (NIHR FS 2011). The views expressed in this publication are those of the authors and not necessarily those of the NHS, the NIHR, or Health and Care Research Wales.
: RL, DH, AJS, and CW have no conflicts of interest that are directly relevant to the content of this article.
: This article does not contain any studies with animals or humans performed by any of the authors.
: Not applicable.
: Not applicable.
: Not applicable.
: All authors contributed to the conception and design of the review. RAL performed the literature search and data analysis and drafted the original manuscript. DH and AJS provided input regarding interpreting the results and critically revised the work. All authors read and approved the final manuscript. RAL will act as the overall guarantor.