1. Division of Nutrition and Hematology, Department of Medicine, University of Alabama School of Medicine, Birmingham, Ala.
2. Division of Nutrition and Hematology, University of Alabama School of Medicine, Birmingham, Ala.; recipient of NIH Training Grant T 01-05526.
3. Division of Nutrition and Hematology, University of Alabama School of Medicine, Birmingham, Ala.
4. Department of Nutrition and Hematology, University of Alabama School of Medicine, Birmingham, Ala.