1. Departments of Endocrinology and Metabolic Diseases (G.C.H., E.P.C., A.M.P., J.A.R., J.W.A.S.), Leiden University Medical Centre, 2300 RC Leiden, The Netherlands
2. Department of Nuclear Medicine (M.P.S.), Leiden University Medical Centre, 2300 RC Leiden, The Netherlands
3. Department of Medical Decision Making (J.K.), Leiden University Medical Centre, 2300 RC Leiden, The Netherlands