1. Department of Ophthalmology, Stanford Health Care, Byers Eye Institute at Stanford, Palo Alto, California, United States
2. Department of Ophthalmology and Visual Science, Yale School of Medicine, New Haven, Connecticut, United States
3. Department of Ophthalmology, University of Colorado School of Medicine, Aurora, Colorado, United States
4. Department of Ophthalmology, New York University School of Medicine, New York, United States
5. Department of Ophthalmology and Visual Sciences, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, United States
6. Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States