Department of Internal Medicine, Division of Rheumatology, University of Michigan, Ann Arbor, Michigan, United States of America; Department of Internal Medicine, Division of Rheumatology, Henry Ford Hospital, Detroit, Michigan, United States of America
2.Department of Radiology, Division of diagnostic radiology, Henry Ford Hospital, Detroit, Michigan, United States of America
3.Department of Internal Medicine, Division of Rheumatology, Henry Ford Hospital, Detroit, Michigan, United States of America.