The Preston and Ho working paper, "The US Health Care System and Lagging Life Expectancy: A Case Study." PSC Working Paper Series PSC 09-01, has been discussed on the Becker-Posner blog as well as the Greg Mankiw's blog in addition to being cited in a letter to the editor of the New England Journal of Medicine (Volume 361(2):202-206) on "Prostate-Cancer Screening," by Preston.