Submitted on: 11 February 1998.
Revised on: 04 March 1998.
Accepted on: 29 April 1998.
___________________Health Services Management Research
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Submitted on: 25 September 2015.
Revised on: 06 November 2015.
Accepted on: 25 November 2015.
___________________Health Services Management Research
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Submitted on: 23 May 2009.
Revised on: 06 September 2009.
Accepted on: 21 September 2009.
___________________Health Services Management Research
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Submitted on: 28 August 2010.
Revised on: 03 October 2010.
Accepted on: 21 November 2010.
___________________Health Services Management Research
Submitted on: 13 August 2019.
Revised on: 06 September 2019.
Accepted on: 22 September 2019.
___________________Health Services Management Research