1. Department of Nutrition Sciences and Clinical Nutrition Research Center (B.A.G., F.F.), Birmingham, Alabama 35294-3360;
2. Department of Critical Care (W.M.G.), Birmingham, Alabama 35294-3360;
3. Department of Pediatrics (F.F.), Birmingham, Alabama 35294-3360;
4. Department of Health Services Administration (R.M.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294-3360;
5. Departments of Preventive Medicine and Physiology and Biophysics, University of Southern California, and Institute for Prevention Research (M.I.G.), Los Angeles, California 90033