Volume 13, Issue 12, December 2012, Pages 5985-5987
Volume 13, Issue 8, August 2012, Pages 3767-3772
Volume 12, Issue 2, February 2011, Pages 383-385
Volume 11, Issue 3, March 2010, Pages 713-716
Volume 9, Issue 1, January 2008, Pages 119-122
Volume 8, Issue 3, March 2007, Pages 395-398
Volume 6, Issue 2, February 2005, Pages 189-194
Volume 5, Issue 4, April 2004, Pages 419-427
Volume 5, Issue 3, March 2004, Pages 308-315
Volume 1, Issue 4, April 2000, Pages 269-276
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