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Submitted on: 01 July 2010.
Revised on: 20 October 2010.
Accepted on: 02 November 2010.
___________________Clinics and Practice---MDPI
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http://reply.papertrans.cn/1/58/5755/5755-14.png
Submitted on: 12 March 2001.
Revised on: 24 April 2001.
Accepted on: 21 May 2001.
___________________Clinics and Practice---MDPI
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http://reply.papertrans.cn/1/58/5755/5755-17.png
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