Submitted on: 31 October 2005.
Revised on: 15 December 2005.
Accepted on: 20 January 2006.
___________________International Journal for Equity in Health
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Submitted on: 01 June 2001.
Revised on: 22 August 2001.
Accepted on: 21 October 2001.
___________________International Journal for Equity in Health
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Submitted on: 30 December 2001.
Revised on: 22 February 2002.
Accepted on: 25 March 2002.
___________________International Journal for Equity in Health
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Submitted on: 03 December 2009.
Revised on: 26 February 2010.
Accepted on: 22 March 2010.
___________________International Journal for Equity in Health
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