1. Medical Research Service; G.V. (Sonny) Montgomery Veterans Affairs Medical Center; Jackson MS
2. Departments of Ophthalmology & Pathology; University of Mississippi School of Medicine; Jackson MS
3. SUNY Eye Institute; State University of New York; Buffalo NY
4. Department of Biology; The University of Texas at San Antonio; San Antonio TX
5. Department of Physics & Geology; The University of Texas-Pan American; Edinburg TX
6. Department of Physics and Astronomy; The University of Texas at San Antonio; San Antonio TX