Report for Phase V of the SNACC Medicaid Undercount project: Comparing MSIS and the CPS ASEC, 2003-2004.  This phase V is a repeat of Phase II with later years of the CPS. The intent of this phase is to see if the discrepancy measured and explained in Phase II changes noticeably in the size or the relationship to explanatory factors from 2000 and 2001 to 2002 and 2003.  January 2010.