http://reply.papertrans.cn/2/148/14794/14794-31.png
Submitted on: 16 August 2000.
Revised on: 23 October 2000.
Accepted on: 29 November 2000.
___________________JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
Submitted on: 03 September 2009.
Revised on: 08 December 2009.
Accepted on: 29 December 2009.
___________________JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
http://reply.papertrans.cn/2/148/14794/14794-34.png
http://reply.papertrans.cn/2/148/14794/14794-35.png
Submitted on: 17 October 2010.
Revised on: 06 December 2010.
Accepted on: 03 January 2011.
___________________JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES