Submitted on: 07 October 2004.
Revised on: 10 November 2004.
Accepted on: 19 November 2004.
Respiratory Medicine and Research
http://reply.papertrans.cn/3/265/26486/26486-32.png
Submitted on: 22 February 2015.
Revised on: 25 March 2015.
Accepted on: 07 April 2015.
Respiratory Medicine and Research
Submitted on: 01 August 2007.
Revised on: 14 September 2007.
Accepted on: 11 October 2007.
Respiratory Medicine and Research
Submitted on: 26 January 2021.
Revised on: 18 February 2021.
Accepted on: 12 March 2021.
Respiratory Medicine and Research
Submitted on: 28 May 2017.
Revised on: 24 June 2017.
Accepted on: 04 July 2017.
Respiratory Medicine and Research