Submitted on: 28 February 2000.
Revised on: 10 May 2000.
Accepted on: 21 May 2000.
___________________GEOBIOS---ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
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http://reply.papertrans.cn/2/106/10528/10528-33.png
Submitted on: 25 August 2001.
Revised on: 20 October 2001.
Accepted on: 30 October 2001.
___________________GEOBIOS---ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
http://reply.papertrans.cn/2/106/10528/10528-35.png
Submitted on: 25 January 2014.
Revised on: 02 May 2014.
Accepted on: 15 May 2014.
___________________GEOBIOS---ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER