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Submitted on: 18 October 2011.
Revised on: 23 January 2012.
Accepted on: 06 February 2012.
___________________Annals of African Medicine---WOLTERS KLUWER MEDKNOW PUBLICATIONS
Submitted on: 23 August 2010.
Revised on: 09 November 2010.
Accepted on: 25 December 2010.
___________________Annals of African Medicine---WOLTERS KLUWER MEDKNOW PUBLICATIONS
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Submitted on: 14 October 2007.
Revised on: 06 December 2007.
Accepted on: 24 January 2008.
___________________Annals of African Medicine---WOLTERS KLUWER MEDKNOW PUBLICATIONS
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Submitted on: 24 December 1998.
Revised on: 01 February 1999.
Accepted on: 17 February 1999.
___________________Annals of African Medicine---WOLTERS KLUWER MEDKNOW PUBLICATIONS
Submitted on: 19 August 1999.
Revised on: 13 November 1999.
Accepted on: 30 December 1999.
___________________Annals of African Medicine---WOLTERS KLUWER MEDKNOW PUBLICATIONS