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Submitted on: 23 October 2017.
Revised on: 18 February 2018.
Accepted on: 07 March 2018.
___________________BMC Medical Ethics---BMC
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Submitted on: 27 April 2015.
Revised on: 19 June 2015.
Accepted on: 15 August 2015.
___________________BMC Medical Ethics---BMC
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Submitted on: 25 June 2008.
Revised on: 24 September 2008.
Accepted on: 12 November 2008.
___________________BMC Medical Ethics---BMC
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Submitted on: 28 September 2015.
Revised on: 22 October 2015.
Accepted on: 19 December 2015.
___________________BMC Medical Ethics---BMC
Submitted on: 05 May 2004.
Revised on: 05 July 2004.
Accepted on: 02 September 2004.
___________________BMC Medical Ethics---BMC
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