1. From the Department of Genetics, Southwest Foundation for Biomedical Research, San Antonio, Texas;
2. the Departments of Neurology and 3Molecular and Medical Genetics and
3. the Casey Eye Institute, Department of Ophthalmology, Oregon Health and Science University, Portland, Oregon;
4. the Department of Ophthalmology, Flinders University, Adelaide, South Australia, Australia;
5. the Centre for Ophthalmology and Visual Science, University of Western Australia and 7Lions Eye Institute, Perth, Western Australia, Australia; the 8Discipline of Medicine, University of Tasmania, Hobart, Tasmania, Australia; and
6. the Centre for Eye Research Australia, University of Melbourne, Melbourne, Victoria, Australia.