The research study described in the current application resonates with AHRQ's mission and the Agency's stated research priorities for FY2006 (NOT-HS-06-032). This research specifically addresses the gaps in care relating to an important medication therapy management issue in a priority population, elderly residents of nursing homes, a population comprised of individuals with multiple medical conditions who are taking multiple medications; the nursing home setting and structure pose special challenges that can subvert efforts to provide high quality, safe, and effective anticoagulation care to a particularly vulnerable population.