Volume 15, Issue 21, December 2014, Pages 9259-9264
Volume 15, Issue 3, March 2014, Pages 1345-1349
Volume 14, Issue 1, January 2013, Pages 299-302
Volume 13, Issue 8, August 2012, Pages 3763-3766
Volume 13, Issue 5, May 2012, Pages 2193-2197
Volume 13, Issue 2, February 2012, Pages 647-651
Volume 12, Issue 9, September 2011, Pages 2227-2232
Volume 12, Issue 7, July 2011, Pages 1861-1866
Volume 12, Issue 5, May 2011, Pages 1341-1345
Volume 10, Issue 2, February 2009, Pages 231-236
Volume 9, Issue 2, February 2008, Pages 203-208
Volume 5, Issue 2, February 2004, Pages 133-138