Funding for this research was provided by:
Versus Arthritis (18010)
Received: 18 September 2020
Accepted: 10 February 2021
First Online: 10 March 2021
Ethics approval and consent to participate
: This study was conducted with the approval of the National Research Ethics Committee, reference 08/H1009/41. All participants gave written, informed consent.
: Not applicable.
: The authors declare that they have no competing interests.