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Submitted on: 26 July 2012.
Revised on: 26 October 2012.
Accepted on: 14 November 2012.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 10 February 2015.
Revised on: 27 March 2015.
Accepted on: 20 May 2015.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 11 December 2015.
Revised on: 02 February 2016.
Accepted on: 12 March 2016.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 11 July 2008.
Revised on: 15 August 2008.
Accepted on: 26 September 2008.
___________________HEALTH SERVICES RESEARCH---WILEY
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Submitted on: 26 February 2008.
Revised on: 13 June 2008.
Accepted on: 23 June 2008.
___________________HEALTH SERVICES RESEARCH---WILEY
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