Submitted on: 09 September 2019.
Revised on: 30 September 2019.
Accepted on: 22 October 2019.
Pulmonology
Submitted on: 26 May 1999.
Revised on: 02 July 1999.
Accepted on: 25 July 1999.
Pulmonology---ELSEVIER
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Submitted on: 09 August 2019.
Revised on: 30 August 2019.
Accepted on: 25 September 2019.
Pulmonology
http://reply.papertrans.cn/3/259/25835/25835-15.png
Submitted on: 21 April 2006.
Revised on: 30 April 2006.
Accepted on: 26 May 2006.
Pulmonology
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http://reply.papertrans.cn/3/259/25835/25835-18.png
http://reply.papertrans.cn/3/259/25835/25835-19.png
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