Affiliation: | 1. Chest Department, Faculty of Medicine, Tanta University, Egypt;2. Clinical Oncology Department, Faculty of Medicine, Tanta University, Egypt;1. Retina Foundation of the Southwest, Dallas, Texas;2. Department of Ophthalmology, UT Southwestern Medical Center, Dallas, Texas;3. Department of Ophthalmology, Children''s Medical Center, Dallas, Texas;4. Pediatric Ophthalmology & Adult Strabismus, PA, Plano, Texas |