Funding for this research was provided by:
Arthritis Research UK (20665)
Medical Research Council (MRC_MC_UU_12011/5)
Text and Data Mining valid from 2019-01-23
Received: 4 September 2018
Accepted: 4 January 2019
First Online: 23 January 2019
Ethics approval and consent to participate
: The data that we accessed from the EWCS surveys were retrospective anonymized summary statistics, and ethical approval was not therefore required.
: Not applicable.
: The authors declare no competing interests.
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