Submitted on: 20 April 2008.
Revised on: 11 August 2008.
Accepted on: 25 September 2008.
___________________Journal of Pharmaceutical Policy and Practice
http://reply.papertrans.cn/2/187/18692/18692-32.png
http://reply.papertrans.cn/2/187/18692/18692-33.png
http://reply.papertrans.cn/2/187/18692/18692-34.png
Submitted on: 12 May 1999.
Revised on: 02 July 1999.
Accepted on: 08 August 1999.
___________________Journal of Pharmaceutical Policy and Practice
http://reply.papertrans.cn/2/187/18692/18692-36.png