From the Cardiology Department, Ospedale Maria Vittoria, Torino (M.I., B.D., S.F., E.C., R.B., R.T.); Department of Internal Medicine, Ospedali Riuniti, Bergamo (A.B., D.C., S.M.); and Department of Emergency Medicine, and Internal Medicine, Ospedale Niguarda, Milan (G.B., G.P.), Italy. (At 2008-08-05)