1. Department of Medicine University of Alabama at Birmingham, Birmingham, Alabama;
2. Nephrology Research and Training Center University of Alabama at Birmingham, Birmingham, Alabama;
3. Center for Free Radical Biology University of Alabama at Birmingham, Birmingham, Alabama;
4. Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama; and
5. Department of Pharmacology & Toxicology University of Alabama at Birmingham, Birmingham, Alabama;
6. Birmingham Veterans Administration Medical Center, Birmingham, Alabama