[To Parent Directory] 7/16/2004 9:53 AM 66598 PDF4080068_abstract.pdf 4/18/2008 8:54 PM 2876000 PDF4080068_full.pdf 4/18/2008 8:52 PM 1452280 PDF4080068_s01.pdf 4/18/2008 8:53 PM 1398455 PDF4080068_s02.pdf