1. Agency for Healthcare Research and Quality, 2007. Guide to inpatient quality indicators, report.
2. Selection on observed and unobserved variables: assessing the effectiveness of catholic schools;Altonji;Journal of Political Economy,2005
3. Fiscal shenanigans, targeted federal health care funds, and patient mortality;Baicker;Quarterly Journal of Economics,2005
4. Immigrants and employer-sponsored health insurance;Buchmueller;Health Services Research,2007
5. Competition and quality: evidence from the nhs internal market 1991–1999;Burgess;Journal of Public Economics,2004