1. Anesthesia Service, Veterans Administration Medical Center, Baltimore, MD
2. Resident, Department of Ophthalmology, University of Maryland Medical Center, Baltimore, MD
3. Department of Ophthalmology, Veterans Administration Medical Center, Baltimore, MD; Associate Professor, Department of Ophthalmology, University of Maryland Medical Center, Baltimore, MD
4. Assistant Professor, Department of Ophthalmology, Veterans Administration Medical Center, Baltimore, MD; Assistant Professor, Department of Ophthalmology, University of Maryland Medical Center, Baltimore, MD