Volume 13, Issue 3, March 2012, Pages 837-846
Volume 13, Issue 2, February 2012, Pages 647-651
Volume 12, Issue 12, December 2011, Pages 3357-3360
Volume 12, Issue 8, August 2011, Pages 2117-2122
Volume 12, Issue 7, July 2011, Pages 1861-1866
Volume 12, Issue 5, May 2011, Pages 1341-1345
Volume 11, Issue 6, June 2010, Pages 1601-1604
Volume 9, Issue 1, January 2008, Pages 76-80
Volume 8, Issue 2, February 2007, Pages 283-286
Volume 7, Issue 2, February 2006, Pages 325-328
Volume 6, Issue 3, March 2005, Pages 309-314
Volume 6, Issue 3, March 2005, Pages 346-352
Volume 4, Issue 1, January 2003, Pages 67-70
Volume 2, Issue 1, January 2001, Pages 57-62