Volume of HGPIN - should be present in the database for each post-baseline core that has a HGPIN diagnosis; cores with no HGPIN diagnosis will need to be set to zero. Then sum all HGPIN volume values across a given biopsy. This allows summarization for both all subjects and for a "HGPIN" population (Matt's e-mail: Tue, 16 Aug 2005 09:56:58 -0400).