http://reply.papertrans.cn/2/124/12316/12316-31.png
http://reply.papertrans.cn/2/124/12316/12316-32.png
http://reply.papertrans.cn/2/124/12316/12316-33.png
http://reply.papertrans.cn/2/124/12316/12316-34.png
http://reply.papertrans.cn/2/124/12316/12316-35.png
Submitted on: 20 July 2004.
Revised on: 28 September 2004.
Accepted on: 25 October 2004.
___________________IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-ANIMAL