1. From the Department of Animal Science, Iowa State University, Ames, Iowa; the 2Division of Animal Science and
2. the Departments of Ophthalmology and Visual Sciences,
3. the Division of Animal Science and 4National Swine Resource and Research Center, University of Missouri-Columbia, Columbia, Missouri;
4. National Swine Resource and Research Center, University of Missouri-Columbia, Columbia, Missouri;
5. the Genetics Laboratory, Department of Pediatrics, University of Nevada School of Medicine, Las Vegas, Nevada; and
6. the Moran Eye Center, University of Utah, Salt Lake City, Utah.
7. Anatomical Sciences and Neurobiology,
8. the Departments of Ophthalmology and Visual Sciences, 8Anatomical Sciences and Neurobiology,
9. the Departments of Ophthalmology and Visual Sciences, 9Psychological and Brain Sciences, and
10. the Departments of Ophthalmology and Visual Sciences, 10Microbiology and Immunology, University of Louisville, Louisville, Kentucky;