1. Hugh Alderwick () is assistant director of policy at the Health Foundation, in London, United Kingdom. He carried out the research for this article when he was a Harkness Fellow and visiting scholar in the Center for Health and Community, University of California San Francisco.
2. Carlyn M. Hood-Ronick is the senior manager, health equity, at the Oregon Primary Care Association, in Portland.
3. Laura M. Gottlieb is an associate professor in the Department of Family and Community Medicine, University of California San Francisco.