1. From the Department of Ophthalmology, Royal Victoria Hospital, The Queen’s University of Belfast, Northern Ireland; the2Massachusetts Eye and Ear Infirmary and3School of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland; the
2. From the Department of Ophthalmology, Royal Victoria Hospital, The Queen’s University of Belfast, Northern Ireland; the2Massachusetts Eye and Ear Infirmary and
3. Massachusetts Eye and Ear Infirmary and
4. From the Department of Ophthalmology, Royal Victoria Hospital, The Queen’s University of Belfast, Northern Ireland; the
5. Scripps Research Institute, La Jolla, California; and
6. Massachusetts Eye and Ear Infirmary and5The Children’s Hospital, Harvard Medical School, Boston, Massachusetts; the6Eyetech Pharmaceuticals, New York, New York.