http://reply.papertrans.cn/3/247/24612/24612-31.png
Submitted on: 06 April 2008.
Revised on: 06 May 2008.
Accepted on: 03 June 2008.
NULL
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http://reply.papertrans.cn/3/247/24612/24612-34.png
http://reply.papertrans.cn/3/247/24612/24612-35.png
Submitted on: 29 April 2011.
Revised on: 04 June 2011.
Accepted on: 13 June 2011.
Physical Educator-US---SAGAMORE PUBLISHING LLC