http://reply.papertrans.cn/3/297/29649/29649-31.png
http://reply.papertrans.cn/3/297/29649/29649-32.png
http://reply.papertrans.cn/3/297/29649/29649-33.png
Submitted on: 19 October 2003.
Revised on: 27 October 2003.
Accepted on: 23 November 2003.
TOXICOLOGY AND INDUSTRIAL HEALTH
http://reply.papertrans.cn/3/297/29649/29649-35.png
http://reply.papertrans.cn/3/297/29649/29649-36.png