- Correspondence to Dr Erik Lubberts, Departments of Rheumatology and Immunology, Erasmus MC, University Medical Center, Rotterdam, P.O. Box 1738, Rotterdam 3000 DR, The Netherlands,
- Received July 17, 2012
- Revised November 9, 2012
- Accepted December 9, 2012
- First published January 17, 2013.
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