Volume 13, Issue 9, September 2012, Pages 4423-4426
Volume 13, Issue 7, July 2012, Pages 3299-3303
Volume 13, Issue 6, June 2012, Pages 2491-2494
Volume 13, Issue 6, June 2012, Pages 2791-2794
Volume 13, Issue 6, June 2012, Pages 2949-2953
Volume 13, Issue 5, May 2012, Pages 2349-2354
Volume 12, Issue 11, November 2011, Pages 3075-3079
Volume 12, Issue 11, November 2011, Pages 3107-3112
Volume 12, Issue 9, September 2011, Pages 2227-2232
Volume 12, Issue 8, August 2011, Pages 2117-2122
Volume 11, Issue 4, April 2010, Pages 1051-1057