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http://reply.papertrans.cn/1/87/8626/8626-32.png
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Submitted on: 18 February 2014.
Revised on: 20 April 2014.
Accepted on: 10 May 2014.
___________________Environmental Evidence---BMC
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Submitted on: 03 May 2002.
Revised on: 10 August 2002.
Accepted on: 08 October 2002.
___________________Environmental Evidence---BMC