1. Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium
2. Rheumatology, University Hospitals Leuven, Leuven, Belgium
3. Department of Rheumatology, Onze-Lieve-Vrouw Ziekenhuis Aalst, Asse, Aalst, Belgium
4. Reumakliniek MedSeen, Houthulst, Belgium
5. UCB Pharma, Brussels, Belgium
6. UCB Pharma, Monheim am Rhein, Germany
7. Algemeen Stedelijk Ziekenhuis, Aalst, Belgium