1. From the Human Genetics Division and the2Southampton Eye Unit, and
2. From the Human Genetics Division and the3Molecular Pathology Laboratory, Southampton University Hospitals, Southampton, United Kingdom; and the
3. Center for Macular Degeneration, Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa.
4. MRC Epidemiology Resource Centre, University of Southampton, Southampton, United Kingdom; the
5. Southampton Eye Unit, and
6. From the Human Genetics Division and the