1. From the Lipid Research Laboratory, Division of Endocrinology, Metabolism and Molecular Medicine, New England Medical Center, Boston (M.C., J.S.M., E.J.S., G.G.D., A.H.L.); the School of Dietetics and Human Nutrition, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada (P.J.H.J.); and the Cattedra di Gerontologia e Geriatria, Istituto di Medicina Interna, Universitá degli Studi, Milan, Italy (C.V.).