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1 Division of Rheumatology, State University of New York Downstate Medical Center, 450 Clarkson Avenue, Brooklyn, NY 11203, USA. Electronic address: ellen.ginzler@downstate.edu.
2 Division of Rheumatology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. Electronic address: mary_dooley@med.unc.edu.
1 Division of Rheumatology, State University of New York Downstate Medical Center, 450 Clarkson Avenue, Brooklyn, NY 11203, USA. Electronic address: ellen.ginzler@downstate.edu.
2 Division of Rheumatology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. Electronic address: mary_dooley@med.unc.edu.