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Submitted on: 04 April 2011.
Revised on: 28 April 2011.
Accepted on: 11 June 2011.
___________________Canadian Journal of Emergency Medicine
Submitted on: 04 July 2010.
Revised on: 01 August 2010.
Accepted on: 05 September 2010.
___________________Canadian Journal of Emergency Medicine
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Submitted on: 30 September 2002.
Revised on: 08 November 2002.
Accepted on: 08 December 2002.
___________________Canadian Journal of Emergency Medicine
Submitted on: 20 February 2010.
Revised on: 10 April 2010.
Accepted on: 05 May 2010.
___________________Canadian Journal of Emergency Medicine
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Submitted on: 10 April 2004.
Revised on: 25 May 2004.
Accepted on: 05 July 2004.
___________________Canadian Journal of Emergency Medicine
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