- Correspondence to Dr Cornelis L Verweij, Department of Pathology and Rheumatology, VU University Medical Center, Section of Inflammatory Disease Profiling, CCA2.28, P.O. box 7075, Amsterdam 1007 MB, The Netherlands;
- Received January 19, 2015
- Revised March 30, 2015
- Accepted April 26, 2015
- First published May 27, 2015.
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