http://reply.papertrans.cn/1/39/3898/3898-11.png
Submitted on: 12 February 2010.
Revised on: 14 March 2010.
Accepted on: 09 May 2010.
___________________BMC Medical Ethics---BMC
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Submitted on: 13 January 2013.
Revised on: 28 April 2013.
Accepted on: 13 May 2013.
___________________BMC Medical Ethics---BMC
Submitted on: 05 November 2010.
Revised on: 26 December 2010.
Accepted on: 07 February 2011.
___________________BMC Medical Ethics---BMC
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Submitted on: 16 July 2015.
Revised on: 12 November 2015.
Accepted on: 03 January 2016.
___________________BMC Medical Ethics---BMC
Submitted on: 11 March 2017.
Revised on: 25 April 2017.
Accepted on: 19 June 2017.
___________________BMC Medical Ethics---BMC
Submitted on: 16 February 2011.
Revised on: 27 April 2011.
Accepted on: 10 May 2011.
___________________BMC Medical Ethics---BMC
Submitted on: 21 March 2020.
Revised on: 08 July 2020.
Accepted on: 19 August 2020.
___________________BMC Medical Ethics---BMC