1. From the Department of Cardiology, Aarhus University Hospital, Aarhus (N.R.H., L.N.A., O.N., S.-H.B.R., L.J.H.M., M.S.L., E.H.C.), the Department of Cardiology, Gentofte Hospital, Gentofte (N.T.O., A.T.K.), the Department of Cardiology, Zealand University Hospital, Roskilde (O.H.), the Department of Cardiology, Rigshospitalet, Copenhagen (J.L.), the Department of Cardiology, Odense University Hospital, Odense (L.O.J.), and the Department of Cardiology, Aalborg University Hospital, Aalborg (A.E.) — all in...