1. Department of Cardiology (J.W.J., R.J.T., L.C.R.H., M.S.B., M.K.d.B., L.v.E., M.J.S.), Leiden University Medical Center, The Netherlands.
2. Department of Internal Medicine (J.I.R., T.J.R.), Leiden University Medical Center, The Netherlands.
3. Department of Biomedical Data Sciences (H.P.), Leiden University Medical Center, The Netherlands.
4. Department of Medical Statistics, Academic Medical Center, Amsterdam, The Netherlands (A.H.Z.).
5. Department of Internal Medicine, Haga Hospital, The Hague, The Netherlands (M.J.K.v.S.).
6. Department of Internal Medicine, Haaglanden Medisch Centrum, The Hague, The Netherlands (N.H.).
7. Department of Internal Medicine, Alrijne Ziekenhuis, Leiderdorp, The Netherlands (B.G.).
8. Department of Internal Medicine, Spaarne Gasthuis, Haarlem, The Netherlands (W.v.D.).
9. Department of Internal Medicine, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands (B.v.D.).
10. Department of Internal Medicine, Hennepin County Medical Center, University of Minnesota, Minneapolis (C.A.H.).