1. From the Wallenberg Laboratory for Cardiovascular Research (P.B., B.M., O.W., J.B., M.S., S-O.O., L.M.H.), and the Department of Internal Medicine (P-A.S., L.M.S.C.), Division of Body Composition and Metabolism, Research Center for Endocrinology and Metabolism (RCEM), the Sahlgrenska Academy, Göteborg, Sweden.