Volume 16, Issue 15, December 2015, Pages 6255-6259
Volume 15, Issue 8, August 2014, Pages 3547-3553
Volume 14, Issue 8, August 2013, Pages 4627-4634
Volume 13, Issue 2, February 2012, Pages 487-492
Volume 5, Issue 1, January 2004, Pages 54-57