- Correspondence to Professor Edward C Keystone, The Rebecca MacDonald Centre for Arthritis & Autoimmune Disease, Mount Sinai Hospital, 60 Murray Street, Room 2-006, Box 4, Toronto, Ontario M5T 3L9, Canada;
- Received August 14, 2014
- Revised November 4, 2014
- Accepted November 7, 2014
- First published November 27, 2014.
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