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Submitted on: 29 November 1999.
Revised on: 11 March 2000.
Accepted on: 11 April 2000.
___________________International Journal of Health Sciences-IJHS
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Submitted on: 08 May 2015.
Revised on: 24 July 2015.
Accepted on: 03 September 2015.
___________________International Journal of Health Sciences-IJHS
Submitted on: 07 August 2007.
Revised on: 05 September 2007.
Accepted on: 07 October 2007.
___________________International Journal of Health Sciences-IJHS
Submitted on: 24 January 2008.
Revised on: 05 April 2008.
Accepted on: 23 May 2008.
___________________International Journal of Health Sciences-IJHS
Submitted on: 26 February 2010.
Revised on: 12 May 2010.
Accepted on: 30 May 2010.
___________________International Journal of Health Sciences-IJHS