1. Centro Hospitalar de Lisboa Ocidental EPE Department of Rheumatology, , Lisbon, Portugal
2. NOVA Medical School Comprehensive Health Research Centre (CHRC), , Lisbon, Portugal
3. Leiden University Medical Center Department of Rheumatology, , Leiden, The Netherlands
4. NOVA Medical School Faculty of Medicine, , Lisbon, Portugal
5. Zuyderland Medical Center , Heerlen, The Netherlands
6. University of Sheffield Health Economics and Decision Science, School of Medicine and Population Health, , Sheffield, United Kingdom
7. Amsterdam University Medical Center (ARC) , Amsterdam, The Netherlands
8. Universidade Nova de Lisboa NOVA Medical School, , Lisboa, Portugal