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Rheumatology 2015;54:2166–2170.
doi.org/10.1093/rheumatology/kev254.
The authors of this manuscript note an error in the affiliation of David T Felson (affiliation number 5 in the published article). This affiliation should read:
Clinical Epidemiology Research and Training Unit, Boston University School of Medicine, Boston, MA, USA, NIHR Manchester Musculoskeletal BRU, Central Manchester Foundation NHS Trust and The University of Manchester, Manchester, UK.
The authors apologise for this error.
