Funding for this research was provided by:
NIHR Southampton Respiratory Biomedical Research Centre (NIHR-INF-0032)
Received: 4 January 2021
Accepted: 17 May 2021
First Online: 21 May 2021
: The study was approved by the South-Central Hampshire A Research Ethics Committee: REC reference 19/SC/0138, on the 16th March 2020. No patient identifiable data is included in this manuscript.
: Not applicable.
: The authors have no competing interests to declare.