Volume 14, Issue 10, October 2013, Pages 6035-6040
Volume 14, Issue 6, June 2013, Pages 3527-3534
Volume 12, Issue 7, July 2011, Pages 1867-1872
Volume 11, Issue 6, June 2010, Pages 1731-1739
Volume 10, Issue 1, January 2009, Pages 123-126
Volume 7, Issue 1, January 2006, Pages 86-90
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