1. From the Departments of Medicine and Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas;
2. Department of Ophthalmology, Charité, University Medicine Berlin, Berlin, Germany;
3. Department of Pathology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece;
4. Department of Ophthalmology, Veterans Affairs Boston Healthcare System, Jamaica Plain/Boston, Massachusetts; and 5Boston University School of Medicine, Boston, Massachusetts.