Article History
Received: 18 September 2020
Accepted: 9 August 2021
First Online: 25 August 2021
Declarations
:
: This study was granted ethical approval by the University of Oxford Central University Research Ethics Committee (Reference number: R57703/RE002). Participant consent was included at the start of the questionnaire and informed consent was required for respondents to continue with the online survey. Postal versions included the consent question as part of the paper questionnaire and, in addition, participants were instructed to not send back the questionnaire if they did not consent to participating in the survey. All participants in this study gave informed consent to participate in the study.
: Not required.
: The authors declare that they do not have any competing interests.