http://reply.papertrans.cn/1/79/7832/7832-31.png
http://reply.papertrans.cn/1/79/7832/7832-32.png
http://reply.papertrans.cn/1/79/7832/7832-33.png
http://reply.papertrans.cn/1/79/7832/7832-34.png
http://reply.papertrans.cn/1/79/7832/7832-35.png
Submitted on: 22 September 2008.
Revised on: 07 December 2008.
Accepted on: 23 January 2009.
___________________EBioMedicine---ELSEVIER