1. From the School of Optometry,
2. the School of Medicine, the 3Department of Ophthalmology,
3. the School of Medicine, the 4Department of Health Behavior, the School of Public Health, and
4. the Pfizer Medical Education Group, External Medical Communications, Birmingham, Alabama; and
5. The New England Journal of Medicine, the Massachusetts Medical Society, Boston, Massachusetts.
6. the School of Medicine, the 7Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama; and