- Correspondence to Dr Laura C Cappelli, Division of Rheumatology, Department of Medicine, Johns Hopkins University, 5200 Eastern Avenue, MFL Center Tower 4100, Baltimore, MD 21224, USA;
- Received 22 March 2016
- Revised 16 May 2016
- Accepted 27 May 2016
- Published in print 22 June 2016.
- Published first 15 June 2016.
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