- Correspondence to Josef S Smolen, Division of Rheumatology, Department of Medicine 3,Medical University of Vienna, Waehringer Guertel 19-20, 1090 Vienna, Austria;
- Received 4 May 2017
- Revised 5 June 2017
- Accepted 5 June 2017
- Published in print 1 January 2018.
- Published online 11 December 2017.
- Published first 6 July 2017.
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