Ann Rheum Dis 2014 Jul 20;73(7):1430-3. Epub 2014 Mar 20.
Arthritis Research UK Centre for Genetics and Genomics, Centre for Musculoskeletal Research, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, UK.