1. From the Department of Clinical Physiology (M.J.J., J.H., O.T.R.), Research Centre of Applied and Preventive Cardiovascular Medicine (M.J.J., M.H., U.P.), Department of Medicine (J.V.), Department of Pediatrics (M.H., U.P., O.S.), and Turku PET Centre (O.T.R.), University of Turku, Turku, Finland, and the Laboratory of Atherosclerosis Genetics (A.H., T.L.), Department of Clinical Chemistry, Centre for Laboratory Medicine, Tampere University Hospital and University of Tampere, Tampere, Finland.