1. From the New England College of Optometry, Boston, Massachusetts;
2. Stony Brook University School of Medicine, Stony Brook, New York; the
3. National Eye Institute, Bethesda, Maryland; the
4. University of Alabama at Birmingham School of Optometry, Birmingham, Alabama; the
5. University of Houston College of Optometry, Houston, Texas; and the
6. Pennsylvania College of Optometry, Philadelphia, Pennsylvania.