Institution: | (1) Department of Internal Medicine, Division of Rheumatology, University of Michigan, 1500 East Medical Center Drive, 3918 TC, Ann Arbor, MI 48109-5358, USA;(2) Department of Community Medicine, The Lahey Clinic, 267 Boston Road, Suite 20, Billerica, MA 01862, USA;(3) Department of Internal Medicine, Division of Rheumatology, University of Kentucky, Room J503 Kentucky Clinic, Lexington, KY 40536, USA |