1. Amsterdam Rheumatology and Immunology Center; VU University Medical Center; Amsterdam the Netherlands
2. Rheumatology Research Group, Institute of Inflammation and Ageing; University of Birmingham; Birmingham UK
3. Division of Psychology; Nottingham Trent University; Nottingham UK
4. Amsterdam Rheumatology and Immunology Center; Reade and Academic Medical Center; Amsterdam the Netherlands
5. Department of Rheumatology; Sandwell and West Birmingham Hospital NHS Trust; Birmingham UK