[To Parent Directory] 3/16/2004 11:46 AM 313595 DIG4080002_abstract.pdf 4/17/2008 2:32 PM 4032532 DIG4080002_full.pdf 4/17/2008 2:31 PM 2191956 DIG4080002_s01.pdf 4/17/2008 2:30 PM 1808767 DIG4080002_s02.pdf