1. Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
2. Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
3. Department of Cardiovascular Surgery, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan
4. Department of Cardiac and Thoracic Vascular Surgery, Marburg University Hospital, 35043 Marburg, Germany
5. Department of Cardiovascular Surgery, University of Health Sciences, Bursa Yuksek Ihtisas Training and Research Hospital, 16310 Bursa, Turkey
6. Medical Sciences Division, University of Oxford, Oxford OX1 2JD, UK
7. Department of Cardiothoracic Transplantation and Mechanical Circulatory Support, Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, Harefield UB9 6JH, UK