[To Parent Directory] 2/21/2007 12:36 PM 34697 RDG43N0018_abstract.pdf 2/21/2007 12:35 PM 3149228 RDG43N0018_full.pdf 4/21/2008 10:49 AM 1942349 RDG43N0018_s01.pdf 4/21/2008 10:50 AM 1690875 RDG43N0018_s02.pdf