1. Departments of Ophthalmology & Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
2. Department of Pediatrics, Children’s Hospital of Richmond at VCU, Richmond, VA, USA
3. Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
4. Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA, USA
5. The University of Iowa Institute for Vision Research, Iowa City, IA, USA
6. Departments of Pediatrics & Ophthalmology, University of California Davis, Sacramento, CA, USA