Submitted on: 20 May 2007.
Revised on: 15 June 2007.
Accepted on: 27 July 2007.
___________________International Journal of Clinical and Experimental Medicine
Submitted on: 27 July 2009.
Revised on: 27 August 2009.
Accepted on: 22 October 2009.
___________________International Journal of Clinical and Experimental Medicine
Submitted on: 13 August 2011.
Revised on: 28 November 2011.
Accepted on: 08 January 2012.
___________________International Journal of Clinical and Experimental Medicine
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http://reply.papertrans.cn/2/132/13153/13153-35.png
Submitted on: 17 June 2012.
Revised on: 13 September 2012.
Accepted on: 22 October 2012.
___________________International Journal of Clinical and Experimental Medicine