Volume 16, Issue 12, December 2015, Pages 4987-4991
Volume 15, Issue 21, December 2014, Pages 9085-9091
Volume 14, Issue 4, April 2013, Pages 2191-2199
Volume 14, Issue 1, January 2013, Pages 1-4
Volume 4, Issue 4, April 2003, Pages 297-301
Volume 3, Issue 2, February 2002, Pages 125-132
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