1. Center for Care Delivery and Outcomes Research, VA Health Care System, Minneapolis, Minnesota (K.E.U., C.S., N.Z., M.A., A.L., N.G.)
2. Center for Care Delivery and Outcomes Research, VA Health Care System, and Department of Medicine, University of Minnesota, Minneapolis, Minnesota (S.D., E.R.D.)
3. Division of Health Policy and Management, School of Public Health, University of Minnesota, Minneapolis, Minnesota (M.L.F., M.B.)
4. Center for Care Delivery and Outcomes Research, VA Health Care System, and Department of Medicine and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota (K.E.)
5. Center for Care Delivery and Outcomes Research, VA Health Care System, and Department of Medicine and Division of Health Policy and Management, School of Public Health, University of Minnesota, Minneapolis, Minnesota (T.J.W.).