AHRQ: Healthcare Cost & Utilization Project (HCUP)Includes databases and related tools developed through a Federal-State-Industry partnership sponsored by AHRQ. They enable research on a range of health policy issues, including cost and quality of health services, medical practice patterns, access to health care programs, and outcomes of treatments at the national, State, and local market levels based on data collection efforts of organizations in participating States that maintain statewide data systems and are Partners with AHRQ.