1 Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium diederik.decock@kuleuven.be.
2 Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium.
3 Rheumatology,University Hospitals of Leuven, University Hospitals of Leuven, Leuven, Belgium.