- Correspondence to Ingrid E Lundberg, Rheumatology Unit, D2:01, Karolinska University Hospital, Solna, Stockholm S-171 76, Sweden;
- Received 14 March 2017
- Revised 23 June 2017
- Accepted 26 July 2017
- Published in print 1 December 2017.
- Published online 13 November 2017.
- Published first 27 October 2017.
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