Funding for this research was provided by:
Arthritis Research UK (21378)
British Society for Rheumatology
Received: 22 November 2018
Accepted: 25 April 2019
First Online: 20 May 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the UK National Research Ethics Service (NRES) Committee North East – County Durham and Tees Valley (Research Ethics Committee (REC) reference 11/NE/0374). All patients provided written informed consent to participate.
: Not applicable
: The authors declare that they have no competing interests.
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