1. From the Departments of Ophthalmology and
2. From the Departments of Ophthalmology and2Medicine, Emory University School of Medicine, Atlanta, Georgia; and the
3. Medicine, Emory University School of Medicine, Atlanta, Georgia; and the
4. Medicine, Emory University School of Medicine, Atlanta, Georgia; and the3Vanderbilt Eye Institute, Vanderbilt University, Nashville, Tennessee.
5. From the Departments of Ophthalmology and3Vanderbilt Eye Institute, Vanderbilt University, Nashville, Tennessee.