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Submitted on: 17 January 2007.
Revised on: 25 February 2007.
Accepted on: 08 March 2007.
___________________Ethical Perspectives---PEETERS
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Submitted on: 16 April 2014.
Revised on: 25 May 2014.
Accepted on: 10 July 2014.
___________________Ethical Perspectives---PEETERS
Submitted on: 19 July 2001.
Revised on: 28 October 2001.
Accepted on: 10 November 2001.
___________________Ethical Perspectives---PEETERS