Submitted on: 27 May 2008.
Revised on: 01 July 2008.
Accepted on: 29 July 2008.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 21 April 2006.
Revised on: 11 May 2006.
Accepted on: 09 June 2006.
___________________HEALTH SERVICES RESEARCH---WILEY
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Submitted on: 07 February 2008.
Revised on: 01 May 2008.
Accepted on: 27 June 2008.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 26 July 2019.
Revised on: 26 August 2019.
Accepted on: 18 September 2019.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 18 April 2005.
Revised on: 26 May 2005.
Accepted on: 09 July 2005.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 14 April 2003.
Revised on: 26 June 2003.
Accepted on: 19 August 2003.
___________________HEALTH SERVICES RESEARCH---WILEY
Submitted on: 12 July 2020.
Revised on: 13 August 2020.
Accepted on: 15 September 2020.
___________________HEALTH SERVICES RESEARCH---WILEY