http://reply.papertrans.cn/3/221/22045/22045-31.png
http://reply.papertrans.cn/3/221/22045/22045-32.png
http://reply.papertrans.cn/3/221/22045/22045-33.png
Submitted on: 01 August 1999.
Revised on: 24 August 1999.
Accepted on: 20 September 1999.
Minerva Biotechnology and Biomolecular Research
http://reply.papertrans.cn/3/221/22045/22045-35.png
Submitted on: 04 July 2001.
Revised on: 21 July 2001.
Accepted on: 12 August 2001.
Minerva Biotechnology and Biomolecular Research