Submitted on: 15 May 2014.
Revised on: 12 June 2014.
Accepted on: 22 June 2014.
Open Access Journal of Clinical Trials
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Submitted on: 24 October 2018.
Revised on: 05 December 2018.
Accepted on: 25 December 2018.
Open Access Journal of Clinical Trials
Submitted on: 02 December 2006.
Revised on: 15 December 2006.
Accepted on: 31 December 2006.
Open Access Journal of Clinical Trials
Submitted on: 08 March 2018.
Revised on: 13 April 2018.
Accepted on: 25 April 2018.
Open Access Journal of Clinical Trials
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http://reply.papertrans.cn/3/237/23625/23625-27.png
http://reply.papertrans.cn/3/237/23625/23625-28.png
Submitted on: 06 June 2008.
Revised on: 02 July 2008.
Accepted on: 15 July 2008.
Open Access Journal of Clinical Trials
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