From the Hypertension and Cardiovascular Rehabilitation Unit (R.H.F., H.C., L.T., J.A.S.), Faculty of Medicine, University of Leuven; the Department of Cardiovascular Diseases (D.L.C., M.L.D.B.), Ghent University; and the Department of Public Health (D.A.D.B.), Ghent University, Belgium. (At 2008-01)
