Submitted on: 07 April 2012.
Revised on: 31 May 2012.
Accepted on: 15 July 2012.
___________________Health Economics Review---BMC
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Submitted on: 27 October 2003.
Revised on: 15 January 2004.
Accepted on: 31 January 2004.
___________________Health Economics Review---BMC
Submitted on: 15 October 2014.
Revised on: 23 December 2014.
Accepted on: 11 January 2015.
___________________Health Economics Review---BMC
Submitted on: 25 July 2007.
Revised on: 27 September 2007.
Accepted on: 18 November 2007.
___________________Health Economics Review---BMC
Submitted on: 27 March 2022.
Revised on: 03 June 2022.
Accepted on: 27 July 2022.
___________________Health Economics Review---BMC
Submitted on: 05 October 2001.
Revised on: 28 November 2001.
Accepted on: 19 December 2001.
___________________Health Economics Review---BMC
Submitted on: 03 July 2000.
Revised on: 18 August 2000.
Accepted on: 25 September 2000.
___________________Health Economics Review---BMC
Submitted on: 10 August 2014.
Revised on: 21 October 2014.
Accepted on: 17 December 2014.
___________________Health Economics Review---BMC
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