Volume 16, Issue 10, October 2015, Pages 4271-4275
Volume 15, Issue 14, December 2014, Pages 5867-5872
Volume 15, Issue 6, June 2014, Pages 2485-2489
Volume 15, Issue 4, April 2014, Pages 1675-1679
Volume 14, Issue 12, December 2013, Pages 7737-7741
Volume 14, Issue 7, July 2013, Pages 4427-4433
Volume 10, Issue 6, June 2009, Pages 1011-1014
Volume 7, Issue 3, March 2006, Pages 403-406