1 Division of Immunology, Allergy and Rheumatology, Department of Internal Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio.
2 Division of Nephrology, Department of Medicine, University of Toledo, Toledo, Ohio.
3 Division of Rheumatology, Department of Medicine, University of Toledo, Toledo, Ohio4now with Division of Rheumatology, Department of Medicine, University of Michigan, Ann Arbor.