1. Department of Psychology, College of Arts and Sciences, The University of Alabama, Tuscaloosa, Alabama, USA
2. Alabama Research Institute on Aging, College of Arts and Sciences, The University of Alabama, Tuscaloosa, Alabama, USA
3. Research & Development Service, Tuscaloosa VA Medical Center, Tuscaloosa, Alabama, USA
4. Family, Internal and Rural Medicine, College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama, USA