1. From the Department of Cardiology, Karolinska Institute and Danderyd Hospital, Danderyd (F.B., B.M., R.L.), the Department of Cardiology, Karolinska Institute and Karolinska University Hospital, Stockholm (A.R.), the Department of Cardiology, Linköping University Hospital, Linköping (S.Z.), the Department of Cardiology, Mälarsjukhuset, Eskilstuna (M.H.), the Department of Cardiology, Central Hospital, Karlstad (T.K.), the Department of Cardiology, Ryhov Hospital, Jönköping (J. Lauermann), the...