Volume 13, Issue 5, May 2012, Pages 2101-2107
Volume 13, Issue 5, May 2012, Pages 2225-2228
Volume 13, Issue 3, March 2012, Pages 785-789
Volume 13, Issue 1, January 2012, Pages 75-79
Volume 12, Issue 11, November 2011, Pages 3017-3021
Volume 12, Issue 7, July 2011, Pages 1739-1743
Volume 12, Issue 6, June 2011, Pages 1515-1519
Volume 12, Issue 5, May 2011, Pages 1141-1147
Volume 12, Issue 3, March 2011, Pages 735-738
Volume 11, Issue 6, June 2010, Pages 1595-1599
Volume 11, Issue 1, January 2010, Pages 29-32
Volume 9, Issue 2, February 2008, Pages 233-238
Volume 6, Issue 3, March 2005, Pages 270-275
Volume 4, Issue 2, February 2003, Pages 113-118
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