1. Division of Rheumatology University of Pennsylvania Philadelphia PA U.S.A.
2. Division of Rheumatology Emory University Atlanta GA U.S.A.
3. Department of Internal Medicine University of Pennsylvania Philadelphia PA U.S.A.
4. Department of Dermatology University of Pennsylvania Philadelphia PA U.S.A.
5. Department of Dermatology Corporal Michael J. Crescenz VA Medical Center Philadelphia PA U.S.A.