Funding for this research was provided by:
Arthritis Research UK (18474)
Medical Research Council (MR/N003322/1)
University of Manchester Alumni Research Impact Scholarship (N/A)
University of Manchester President's Doctoral Scholar Award (N/A)
Received: 16 October 2019
Accepted: 20 March 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: The Salford Royal NHS Foundation Trust myositis research tissue bank (MRTB) study was approved by the NHS North West - Haydock Research Ethics Committee (15/NW/0826) and all participants gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.