1 From the Department of Medicine, McAllister Heart Institute (S.P.G.) and Division of Rheumatology, Allergy, and Immunology, Thurston Arthritis Research Center (R.A.S.R.), The University of North Carolina at Chapel Hill.
2 From the Department of Medicine, McAllister Heart Institute (S.P.G.) and Division of Rheumatology, Allergy, and Immunology, Thurston Arthritis Research Center (R.A.S.R.), The University of North Carolina at Chapel Hill. robert_roubey@med.unc.edu.