1. Reynolds Oklahoma Center on Aging; Donald W. Reynolds Department of Geriatric Medicine; University of Oklahoma Health Sciences Center; Oklahoma City OK USA
2. Department of Immunology/Rheumatology/Allergy Medicine; University of Oklahoma Health Sciences Center; Oklahoma City OK USA
3. Department of Pathology; Barshop Institute for Longevity and Aging Studies; University of Texas Health Science Center at San Antonio; San Antonio TX USA
4. Department of Veterans' Affairs; Oklahoma City OK USA