Submitted on: 19 November 1998.
Revised on: 09 March 1999.
Accepted on: 12 April 1999.
___________________African Journal of Emergency Medicine
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Submitted on: 21 September 2009.
Revised on: 11 December 2009.
Accepted on: 06 January 2010.
___________________African Journal of Emergency Medicine
Submitted on: 10 December 2021.
Revised on: 27 February 2022.
Accepted on: 21 April 2022.
___________________African Journal of Emergency Medicine
Submitted on: 22 July 2012.
Revised on: 20 October 2012.
Accepted on: 12 November 2012.
___________________African Journal of Emergency Medicine