- Correspondence to Dr Kari Sampsel, Department of Emergency Medicine, The Ottawa Hospital, 1053 Carling Avenue, Ottawa, Canada ON K1Y 4E9;
- Received January 27, 2015
- Revised July 14, 2015
- Accepted August 8, 2015
- First published August 27, 2015.
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- Data supplement 1 - Online supplement
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