Submitted on: 28 May 2009.
Revised on: 04 September 2009.
Accepted on: 16 September 2009.
___________________Journal of Patient Safety and Risk Management
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Submitted on: 09 February 2015.
Revised on: 05 April 2015.
Accepted on: 04 May 2015.
___________________Journal of Patient Safety and Risk Management
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Submitted on: 29 July 2007.
Revised on: 10 October 2007.
Accepted on: 25 October 2007.
___________________Journal of Patient Safety and Risk Management