- Correspondence to Dr S Ramiro, Department of Clinical Immunology and Rheumatology, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, PO Box 22660, 1100 DD Amsterdam, The Netherlands;
- Received June 1, 2013
- Revised July 19, 2013
- Accepted July 27, 2013
- First published August 16, 2013.
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