1. IDEAS Center, Veterans Affairs Salt Lake City Health Care System
2. Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City
3. National Infectious Diseases Service, Specialty Care Services, Veterans Health Administration, Cincinnati, Ohio
4. Lexington Veterans Affairs Medical Center, University of Kentucky College of Medicine, Lexington
5. Department of Internal Medicine, University of Kentucky College of Medicine, Lexington
6. Cincinnati Veterans Affairs Medical Center, University of Cincinnati School of Medicine, Ohio
7. Department of Internal Medicine, University of Cincinnati School of Medicine, Ohio