- Correspondence to Dr Sofia Ramiro, Department of Clinical Immunology & Rheumatology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, Amsterdam 1105 AZ, The Netherlands;
- Received September 8, 2013
- Revised December 21, 2013
- Accepted December 23, 2013
- First published January 8, 2014.
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