Volume 16, Issue 18, December 2015, Pages 8605-8611
Volume 14, Issue 5, May 2013, Pages 3243-3254
Volume 14, Issue 3, March 2013, Pages 1851-1863
Volume 13, Issue 7, July 2012, Pages 3409-3416
Volume 12, Issue 5, May 2011, Pages 1289-1293