Volume 15, Issue 6, June 2014, Pages 2631-2634
Volume 14, Issue 11, November 2013, Pages 6739-6742
Volume 14, Issue 2, February 2013, Pages 651-658
Volume 14, Issue 1, January 2013, Pages 91-96
Volume 13, Issue 10, October 2012, Pages 4909-4914
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