1. Seth A. Berkowitz () is an assistant professor of medicine in the Division of General Medicine and Clinical Epidemiology, School of Medicine, and the Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, in Chapel Hill, North Carolina.
2. Sanjay Basu is director of research at the Center for Primary Care, Harvard Medical School, in Boston, Massachusetts, and vice president of research and population health at Collective Health, in San Francisco, California.