1. From the Department of Neurology (S.K., G.W., W.P., J.W.), Innsbruck University Clinic, Innsbruck, Austria; Division of Rheumatology (G.S., K.R., J.S.), Department of Internal Medicine III, University of Vienna, Vienna, Austria; and Departments of Internal Medicine (M.O.) and Laboratory Medicine (A.M., P.S.), Bruneck Hospital, Bruneck, Italy.