1. From the Department of Ophthalmology, School of Medicine, the
2. From the Department of Ophthalmology, School of Medicine, the2Department of Epidemiology, School of Public Health, and the3Department of Surgery, Section of Trauma, Burn, and Critical Care, School of Medicine, University of Alabama at Birmingham, Birmingh
3. Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, Wisconsin.