1. From the CNR Unit for Muscle Pathophysiology, Department of Biomedical Sciences (L.D.L., B.R., K.R., M.S.), and the Department of Cardiovascular Pathology (A.A., G.T.), University of Padua, Padua, Italy; Internal Medicine I, City Hospital, Venice, Italy (G.B.A.); and Internal Medicine, City Hospital, Adria, Italy (G.V.).