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Submitted on: 17 January 2009.
Revised on: 30 March 2009.
Accepted on: 30 April 2009.
___________________Journal of the American Association of Nurse Practitioners
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Submitted on: 31 August 2016.
Revised on: 06 November 2016.
Accepted on: 26 December 2016.
___________________Journal of the American Association of Nurse Practitioners
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