1 Department of Health Policy, Stanford School of Medicine, and Stanford Health Policy, Freeman Spogli Institute for International Studies, Stanford University, Stanford, California.
2 VA Palo Alto Health Care System, Center for Innovation to Implementation, Menlo Park, California.
3 Stanford Health Policy, Freeman Spogli Institute for International Studies, and Department of Health Policy, Department of Epidemiology and Population Health, and Division of Nephrology, Department of Medicine, Stanford School of Medicine, Stanford, California.