- Correspondence to Dr Dafna Gladman, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, 399 Bathurst St, 1E-410B, Toronto, Ontario, Canada M5T 2S8;
- Received January 21, 2014
- Revised March 30, 2014
- Accepted April 19, 2014
- First published May 14, 2014.
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