http://reply.papertrans.cn/1/50/4921/4921-31.png
http://reply.papertrans.cn/1/50/4921/4921-32.png
http://reply.papertrans.cn/1/50/4921/4921-33.png
http://reply.papertrans.cn/1/50/4921/4921-34.png
http://reply.papertrans.cn/1/50/4921/4921-35.png
Submitted on: 04 August 1998.
Revised on: 06 October 1998.
Accepted on: 26 October 1998.
___________________Cell Discovery---SPRINGERNATURE