http://reply.papertrans.cn/1/37/3634/3634-31.png
http://reply.papertrans.cn/1/37/3634/3634-32.png
http://reply.papertrans.cn/1/37/3634/3634-33.png
http://reply.papertrans.cn/1/37/3634/3634-34.png
Submitted on: 19 June 2009.
Revised on: 09 July 2009.
Accepted on: 20 July 2009.
___________________Biomarker Research---BMC
http://reply.papertrans.cn/1/37/3634/3634-36.png