Submitted on: 29 June 2001.
Revised on: 01 September 2001.
Accepted on: 16 September 2001.
___________________BMC Nephrology---BMC
Submitted on: 02 December 2016.
Revised on: 18 January 2017.
Accepted on: 09 February 2017.
___________________BMC Nephrology---BMC
Submitted on: 02 August 2017.
Revised on: 10 September 2017.
Accepted on: 06 November 2017.
___________________BMC Nephrology---BMC
http://reply.papertrans.cn/1/40/3909/3909-34.png
http://reply.papertrans.cn/1/40/3909/3909-35.png
Submitted on: 26 August 2006.
Revised on: 01 December 2006.
Accepted on: 11 January 2007.
___________________BMC Nephrology---BMC