1. From the Division of Cardiology (H.W., S.S., A.S.-P., A.H., E.L., C.A., M.-R.T.), Department of Medicine, Helsinki University Central Hospital and Biomedicum, Finland; Unita Operativa di Medicina Interna (C.A.), Ospedale Cannizzaro, Universitá di Catania, Catania, Italy; Research Institute of Public Health (R.S., T.-P.T.), University of Kuopio, Finland; and Department of Molecular Medicine (C.E., M.J.), Biomedicum, National Public Health Institute, Helsinki, Finland.