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Submitted on: 30 July 2013.
Revised on: 01 November 2013.
Accepted on: 16 December 2013.
___________________BMC MICROBIOLOGY---BMC
Submitted on: 21 September 2016.
Revised on: 01 January 2017.
Accepted on: 30 January 2017.
___________________BMC MICROBIOLOGY---BMC
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http://reply.papertrans.cn/1/40/3905/3905-25.png
Submitted on: 28 May 2013.
Revised on: 22 September 2013.
Accepted on: 18 October 2013.
___________________BMC MICROBIOLOGY---BMC
http://reply.papertrans.cn/1/40/3905/3905-27.png
http://reply.papertrans.cn/1/40/3905/3905-28.png
Submitted on: 29 November 1999.
Revised on: 07 January 2000.
Accepted on: 12 February 2000.
___________________BMC MICROBIOLOGY---BMC
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