Submitted on: 12 December 1998.
Revised on: 14 March 1999.
Accepted on: 02 May 1999.
___________________AIMS Bioengineering---AMER INST MATHEMATICAL SCIENCES-AIMS
Submitted on: 17 October 2021.
Revised on: 16 November 2021.
Accepted on: 21 December 2021.
___________________AIMS Bioengineering---AMER INST MATHEMATICAL SCIENCES-AIMS
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Submitted on: 01 December 1998.
Revised on: 21 February 1999.
Accepted on: 20 March 1999.
___________________AIMS Bioengineering---AMER INST MATHEMATICAL SCIENCES-AIMS
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http://reply.papertrans.cn/1/11/1076/1076-16.png
Submitted on: 02 October 2015.
Revised on: 22 November 2015.
Accepted on: 16 January 2016.
___________________AIMS Bioengineering---AMER INST MATHEMATICAL SCIENCES-AIMS
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http://reply.papertrans.cn/1/11/1076/1076-19.png
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