1. University of Alabama at Birmingham, School of Optometry, Birmingham, Alabama, United States
2. University of California Berkeley School of Optometry, Berkeley, California, United States
3. Department of Preventive Medicine, School of Medicine, Stony Brook Medicine, Stony Brook, New York, United States
4. University of Houston College of Optometry, Houston, Texas, United States
5. New England College of Optometry, Boston, Massachusetts, United States