- Correspondence to Jacqueline S Dekkers, Department of Rheumatology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden 2300 RC, The Netherlands;
- Received November 4, 2016
- Revised February 10, 2017
- Accepted March 23, 2017
- First published April 25, 2017.
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