1. Department of Internal Medicine, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
2. Department of Rheumatology, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
3. Department of Radiology, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
4. Department of Pathology, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands
5. Department of Vascular Surgery, Zuyderland Medical Centre, Sittard/Heerlen, The Netherlands