1. Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana.
2. Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Indiana University School of Medicine, Indianapolis, Indiana.
3. Department of Ophthalmology, University of Alabama at Birmingham, Birmingham, Alabama.
4. Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida.