[To Parent Directory] 2/28/2007 12:45 PM 144429 RDG42N0022_abstract.pdf 4/20/2008 8:54 PM 2652080 RDG42N0022_full.pdf 4/20/2008 8:52 PM 1363871 RDG42N0022_s01.pdf 4/20/2008 8:54 PM 1268921 RDG42N0022_s02.pdf