2007 paper in the Journal of Experimental Criminology on the effectiveness of incarceration-based drug treatment in reducing drug relapse and recidivism.
2008 University of California, San Francisco, study on the causes behind the high rate of dental care among the state's Latino children.
2009 meta-analysis by the Institute of Medicine of 11 U.S. and European studies on the health effects of smoking bans.
2009 study by the Harvard Medical School and the Cambridge Health Alliance on the relationship between health insurance and death rates.
2007 McMaster University survey published in Open Medicine comparing 38 studies that look at outcomes of medical care in the two countries.