1. From the F. M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, Philadelphia, Pennsylvania; the2Graduate Program in Pharmacology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania; the
2. Pathology and Laboratory Medicine,4Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania; and the
3. Department of Ophthalmology, Scheie Eye Institute, Philadelphia, Pennsylvania.
4. From the F. M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, Philadelphia, Pennsylvania; the
5. Departments of Medicine,4Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania; and the