Article History
Received: 4 March 2017
Revised: 28 December 2017
Accepted: 10 January 2018
First Online: 19 January 2018
Compliance with ethical standards
: Bristol UK local research ethics committee (LREC) for National Health Service research approved the study, and all patients provided informed, written consent (the Bath Spondyloarthritis (SpA) Biobank; REC reference: 13/SW/0096).
: Not applicable.
: None.