1. Department of Medicine, Virginia Tech Carilion School of Medicine, Roanoke
2. Geriatrics Extended Care, Salem Veterans Affairs Healthcare System, Salem, VA
3. Department of Health and Human Performance, Concordia University Chicago, Chicago, IL
4. Department of Statistics, Virginia Polytechnic Institute and State University, Roanoke, VA
5. Department of Medicine, Emory University School of Medicine, Atlanta
6. Infectious Diseases, VA Atlanta Healthcare System, Decatur, GA
7. Department of Medicine, University of Maryland School of Medicine, Baltimore, MD
8. Baltimore Veterans Affairs Medical Center Geriatric Research, Education, and Clinical Center at the Veterans Affairs Maryland Healthcare System, Baltimore, MD
9. Department of Global Health, Emory University Rollins School of Public Health, Atlanta, GA, USA.