| Affiliation: | 1. Transplant Institute and Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, University of Gothenburg, , SE‐413 45 Gothenburg, Sweden;2. Department of Cardiothoracic Surgery, Oslo University Hospital, University of Oslo, , Oslo, Norway;3. Department of Cardiothoracic Surgery, Helsinki University Hospital, , Helsinki, Finland;4. Department of Cardiology, Rigshospitalet, , Copenhagen, Denmark;5. Department of Cardiology, ?rhus University Hospital, , ?rhus, Denmark;6. Department of Cardiothoracic Surgery, Lund University Hospital, , Lund, Sweden;7. Department of Cardiology, Karolinska University Hospital, , Stockholm, Sweden;8. Department of Cardiology, Sahlgrenska University Hospital, , Gothenburg, Sweden |
