Volume 16, Issue 7, July 2015, Pages 2675-2677
Volume 14, Issue 8, August 2013, Pages 4539-4543
Volume 14, Issue 2, February 2013, Pages 1131-1132
Volume 13, Issue 10, October 2012, Pages 5069-5074
Volume 11, Issue 5, May 2010, Pages 1279-1282
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