1. Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, School of Medicine, University of Alabama at Birmingham
2. Department of Biochemistry and Molecular Biology, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Science Center, and the Oklahoma City VA Medical Center
3. Department of Molecular Pharmacology, Department of Medicine, and Institute for Aging Research, Albert Einstein College of Medicine, Bronx, New York
4. Department of Biology, College of Arts and Sciences, University of Alabama at Birmingham