- Correspondence to Dr Sasha Bernatsky, Division of Clinical Epidemiology, Research Institute of the McGill University Health Centre, Royal Victoria Hospital, 687 Pine Avenue West, V-Building, Room V2.09 Montreal, Quebec, Canada H3A 1A1;
- Received May 28, 2012
- Revised November 5, 2012
- Accepted December 2, 2012
- First published January 8, 2013.
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