1. Department of Cardio‐Thoracic Surgery University Medical Center Groningen, University of Groningen Groningen The Netherlands
2. Department of Cardiology Aarhus University Hospital Aarhus Denmark
3. Department of Surgical Research University Medical Center Groningen, University of Groningen Groningen The Netherlands
4. Department of Pathology University Medical Center Groningen, University of Groningen Groningen The Netherlands
5. Department of Thoracic Surgery and Lung Transplantation Cleveland Clinic Cleveland Ohio USA