Volume 16, Issue 8, August 2015, Pages 3159-3162
Volume 15, Issue 17, December 2014, Pages 7303-7307
Volume 15, Issue 2, February 2014, Pages 731-736
Volume 13, Issue 8, August 2012, Pages 4153-4156
Volume 12, Issue 2, February 2011, Pages 487-490