Affiliation: | 1.University of Michigan Medical School, Ann Arbor, MI 48109, USA;2.Henry Ford Hospital & Medical Centers, Detroit, MI 48202, USA;3.Veterans Administration Healthcare System, Ann Arbor, MI 48109, USA;4.Yale University School of Medicine, New Haven, CT 06520, USA;5.Department of Medicine, Division of Rheumatology, University of Michigan Medical School, 109 Zina Pitcher Drive, 4023 BSRB, Ann Arbor, MI 48109-2200, USA |