Volume 15, Issue 9, September 2014, Pages 4045-4048
Volume 14, Issue 11, November 2013, Pages 6813-6820
Volume 13, Issue 11, November 2012, Pages 5709-5714
Volume 13, Issue 9, September 2012, Pages 4683-4688
Volume 13, Issue 5, May 2012, Pages 2087-2093
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