1. From the Department of Medicine (R.W., J.F.), Unit of Rheumatology, and Center for Molecular Medicine, Karolinska Hospital; the Department of Emergency and Cardiovascular Medicine (U.d F., C.L.), Karolinska Hospital; the Division of Cardiovascular Epidemiology (U.d F.), Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden; and the Department of Medicine (R.W., J.L.W., J.F.), University of California, San Diego.