1. Center for Primary Care, Harvard Medical School, Boston, Massachusetts
2. Research and Population Health, Collective Health, San Francisco, California
3. Ariadne Labs, Brigham and Women’s Hospital and Harvard T.H. Chan School of Public Health, Boston, Massachusetts
4. School of Public Health, Imperial College, London, United Kingdom
5. Center for Vulnerable Populations, Division of General Internal Medicine, San Francisco General Hospital/University of California San Francisco, San Francisco
6. Division of General Medicine and Clinical Epidemiology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill
7. Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts