1. Midwest Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis
2. Jaeb Center for Health Research, Tampa, Florida
3. Charlotte Eye Ear Nose and Throat Associates, PA, Charlotte, North Carolina
4. Department of Ophthalmology and Visual Sciences, University of Wisconsin–Madison, Madison
5. Feinberg School of Medicine, Northwestern University, Chicago, Illinois
6. Southeast Retina Center, PC, Augusta, Georgia
7. Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio
8. Retina Associates of Southern California, Huntington Beach
9. Joslin Diabetes Center, Beetham Eye Institute, Harvard Department of Ophthalmology, Boston, Massachusetts