Volume 15, Issue 13, December 2014, Pages 5487-5492
Volume 15, Issue 24, December 2014, Pages 10739-10743
Volume 15, Issue 4, April 2014, Pages 1831-1835
Volume 14, Issue 2, February 2013, Pages 935-940
Volume 13, Issue 5, May 2012, Pages 2081-2085
Volume 13, Issue 4, April 2012, Pages 1447-1452
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