Submitted on: 16 November 2015.
Revised on: 17 December 2015.
Accepted on: 25 December 2015.
Trials
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Submitted on: 04 July 2011.
Revised on: 19 July 2011.
Accepted on: 04 August 2011.
Trials---BMC
http://reply.papertrans.cn/3/300/29954/29954-24.png
http://reply.papertrans.cn/3/300/29954/29954-25.png
Submitted on: 11 September 2015.
Revised on: 07 October 2015.
Accepted on: 16 October 2015.
Trials---BMC
Submitted on: 25 March 2011.
Revised on: 09 April 2011.
Accepted on: 30 April 2011.
Trials
Submitted on: 29 March 2008.
Revised on: 17 April 2008.
Accepted on: 01 May 2008.
Trials---BMC
http://reply.papertrans.cn/3/300/29954/29954-29.png
Submitted on: 18 August 2017.
Revised on: 01 October 2017.
Accepted on: 06 October 2017.
Trials