1. Medicine & Research Service, VA Nebraska-Western Iowa Health Care System, Omaha
2. Division of Rheumatology & Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha
3. Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha
4. Department of Cardiology, Baystate Medical Center, Springfield, Massachusetts
5. Division of Pediatric Rheumatology, Allergy, and Immunology, University of Minnesota, Minneapolis
6. Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania
7. Division of Rheumatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia
8. Division of Rheumatology, Salt Lake City VA Medical Center, Salt Lake City, Utah
9. Division of Rheumatology, University of Utah School of Medicine, Salt Lake City