1. Department of Microbiology & Immunology, Texas Tech University Health Sciences Center, Lubbock, Texas
2. Department of Ophthalmology & Visual Sciences, Texas Tech University Health Sciences Center, Lubbock, Texas
3. Selenium, Ltd., Austin, Texas
4. Eburon Organics International, Inc., Lubbock, Texas
5. Department of Nutrition, Texas Tech University, Lubbock, Texas