<A HREF="http://www3.interscience.wiley.com/cgi-bin/abstract/112748646/ABSTRACT?CRETRY=1&SRETRY=0" target="_blank">http://www3.interscience.wiley.com/cgi-bin/abstract/112748646/ABSTRACT?CRETRY=1&SRETRY=0</A> <A HREF="http://www.sciencedaily.com/releases/2003/06/030602024530.htm" target="_blank">http://www.sciencedaily.com/releases/2003/06/030602024530.htm</A> Grtz CV