1. Department of Ophthalmology, California Pacific Medical Center, San Francisco, California, USA
2. Department of Ophthalmology, Stanford University School of Medicine, Stanford, California, USA
3. The Francis I. Proctor Foundation, UCSF School of Medicine, San Francisco, California, USA
4. Associated Vitreoretinal and Uveitis Consultants, Indianapolis, Indiana, USA
5. St. Vincent Hospital and Health Services, Indianapolis, Indiana, USA
6. Department of Ophthalmology, Indiana University Medical Center, Indianapolis, Indiana, USA
7. Department of Ophthalmology, Mason Eye Institute, University of Missouri, Columbia, Missouri, USA
8. Centre for Ophthalmology, University Tuebingen, Tuebingen, Germany