1. Department of Medical Education, School of Medicine, Duke University, Durham, NC, USA
2. Duke Primary Care, Hillsborough, NC, USA
3. Department of Biostatistics and Bioinformatics, School of Medicine, Duke University, Durham, NC, USA
4. Department of Ophthalmology, School of Medicine, Duke University, Durham, NC, USA
5. Science in the Public Sphere Program, RTI International, Research Triangle Park, NC, USA
6. Social Science Research Institute, Duke University, Durham, NC, USA