1 From the Department of Medical, Surgical and Experimental Sciences (G.M.P., G.P.S.), University of Sassari; Sardinia Longevity Blue Zone Observatory (G.M.P.), Ogliastra, Italy; and Department of Epidemiology (Y.-M.P.), Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock.
2 From the Department of Medical, Surgical and Experimental Sciences (G.M.P., G.P.S.), University of Sassari; Sardinia Longevity Blue Zone Observatory (G.M.P.), Ogliastra, Italy; and Department of Epidemiology (Y.-M.P.), Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock. gpsechi@uniss.it.