$HRTX SEC Filings

Filing Filed On
FORM 8-K 12 Mar 2004
FORM 8-K 07 Nov 2003
FORM 8-K 04 Aug 2003
FORM 8-K 05 May 2003
FORM 8-K 28 Feb 2003
FORM 8-K 19 Dec 2001
FORM 8-K 14 May 2001
8-K 09 Aug 2000
8-K 06 May 1999
FORM 8-K DATED AUGUST 19, 1996 06 Sep 1996