1. Centre for Musculoskeletal Research, Salford Royal NHS Foundation Trust, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK,
2. Orion Corporation Orion Pharma, Research and Development, Turku, Finland,
3. Research and Development, Salford Royal NHS Foundation Trust, Salford, UK and
4. Johns Hopkins Scleroderma Center, Division of Rheumatology, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD, USA