Volume 15, Issue 13, December 2014, Pages 5383-5387
Volume 14, Issue 7, July 2013, Pages 4067-4069
Volume 14, Issue 7, July 2013, Pages 4289-4294
Volume 14, Issue 2, February 2013, Pages 909-913
Volume 13, Issue 12, December 2012, Pages 6485-6489
Volume 12, Issue 5, May 2011, Pages 1251-1256
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