1. From the Department of Clinical and Experimental Medicine, University Hospital (G.P.R., M.B., T.M.S., A.P., A.C.P.) and Clinica Medica 4, University Hospital (G.P.R., A.C.P.), University of Padova Medical School, Padova, Italy; and the Clinica Medica (D.R., E.P., E.A-R.) and Clinica Chirurgica, Department of Medical and Surgical Sciences (G.A.M.T., S.M.G.), University of Brescia, Brescia, Italy.