Lack of Health Insurance and Decline in Overall Health in Late Middle Age. New England Journal of Medicine. 2001;345(15):1106-12..
The Effect of Private Insurance on the Health of Older, Working Age Adults: Evidence from the Health and Retirement Study. Health Services Research. 2006;41(3 pt 1):759-87..
The Effects of Private Insurance on Measures of Health: Evidence from the Health and Retirement Study. Cambridge, MA, National Bureau of Economic Research; 2003..
Changes in Case-Mix and Health Outcomes of Medicare Fee-for-Service Beneficiaries and Managed Care Enrollees During the Years 1992-2011. Medical Care. 2018;56(1):39-46. doi:10.1097/MLR.0000000000000847.
Identifying Specific Combinations of Multimorbidity that Contribute to Health Care Resource Utilization: An Analytic Approach. Medical Care. 2017;55(3):276-284. doi:10.1097/MLR.0000000000000660.