1. University of Groningen, University Medical Center Groningen, Departments of Vascular Medicine (E.N.K.H., J.D.L., E.P.S.)
2. Endocrinology (E.N.K.H., B.G., A.N.A.v.d.H.-S., R.P.F.D., T.P.L.), 9700 RB Groningen, The Netherlands
3. Epidemiology (J.G.M.B.), 9700 RB Groningen, The Netherlands
4. Nephrology (R.T.G.), 9700 RB Groningen, The Netherlands
5. Cardiology (I.C.V.G., M.R.), 9700 RB Groningen, The Netherlands
6. Nuclear Medicine and Molecular Imaging (A.H.B.), 9700 RB Groningen, The Netherlands