http://reply.papertrans.cn/2/113/11220/11220-31.png
Submitted on: 01 March 2003.
Revised on: 23 April 2003.
Accepted on: 01 June 2003.
___________________Hepatic Medicine-Evidence and Research
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http://reply.papertrans.cn/2/113/11220/11220-34.png
http://reply.papertrans.cn/2/113/11220/11220-35.png
Submitted on: 24 June 2001.
Revised on: 20 July 2001.
Accepted on: 02 September 2001.
___________________Hepatic Medicine-Evidence and Research