Submitted on: 11 March 2014.
Revised on: 28 April 2014.
Accepted on: 19 June 2014.
___________________Health Economics Review---BMC
Submitted on: 21 August 2016.
Revised on: 28 November 2016.
Accepted on: 09 December 2016.
___________________Health Economics Review---BMC
Submitted on: 05 October 2004.
Revised on: 25 December 2004.
Accepted on: 12 February 2005.
___________________Health Economics Review---BMC
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Submitted on: 08 September 2024.
Revised on: 10 October 2024.
Accepted on: 23 November 2024.
___________________Health Economics Review---BMC