1. Duke University School of Medicine, Durham, NC, USA
2. Division of Education, American College of Surgeons, Chicago, IL, USA
3. Office of Continuing Professional Development, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
4. Office of Curricular Affairs, Duke University School of Medicine, Durham, NC, USA
5. Department of Ophthalmology, Duke University School of Medicine, Durham, NC, USA
6. Department of Medicine, Duke University School of Medicine, Durham, NC, USA