- Correspondence to Dr Alexandre Rocha Sepriano, Leiden University Medical Center, Department of Rheumatology, Albinusdreef 2, P.O. Box 9600, Leiden 2300 RC, The Netherlands;
- Received October 31, 2016
- Revised January 19, 2017
- Accepted January 20, 2017
- First published February 8, 2017.
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