- Correspondence to Dr R Westhovens, Department of Development and Regeneration KU, Skeletal Biology and Engineering Research Center, Leuven; Rheumatology, University Hospitals Leuven, Leuven B-3000, Belgium;
- Received June 22, 2016
- Revised November 1, 2016
- Accepted November 5, 2016
- First published December 19, 2016.
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