Volume 10, Issue 3, March 2009, Pages 361-364
Volume 10, Issue 1, January 2009, Pages 103-106
Volume 9, Issue 1, January 2008, Pages 159-161
Volume 7, Issue 1, January 2006, Pages 46-50
Volume 6, Issue 3, March 2005, Pages 412-419
Volume 5, Issue 1, January 2004, Pages 28-35
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