Division of Rheumatology, Department of Medicine, Zablocki VA Medical Center and The Medical College of Wisconsin, FEOB 4th Floor, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA. Electronic address: arosenthal@mcw.edu. Division of Rheumatology, Department of Medicine, Zablocki VA Medical Center and The Medical College of Wisconsin, FEOB 4th Floor, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA.