1. Department of Cardiology (L.J., E.H.C., M.M., S.D.K., C.J.T., H.E.B., T.T., A.E., R.V.J., N.B.S.), Aarhus University Hospital, Denmark.
2. Department of Cardiology, Aalborg University Hospital, Denmark (P.F., B.R., A.B.V., M.K.C., J.A., L.T., J.G.R., S.E.J.).
3. Department of Clinical Epidemiology (J.K.), Aarhus University Hospital, Denmark.
4. Department of Cardiology, Odense University Hospital, Denmark (K.V., J.E., O.A., A.A., A.J., H.S.H., L.O.J.).