- Correspondence to Professor Edward C Keystone, The Rebecca MacDonald Centre for Arthritis and Autoimmunity, Mt Sinai Hospital, University of Toronto, Toronto, Canada;
- Received 3 February 2017
- Revised 22 June 2017
- Accepted 24 June 2017
- Published in print 4 September 2017.
- Published online 5 September 2017.
- Published first 10 August 2017.
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