1. Department of Cardiothoracic Surgery, Heart Centre Cologne University Hospital Cologne Cologne Germany
2. Clinic for Thoracic and Cardiovascular Surgery Heart and Diabetes Centre NRW Bad Oeynhausen Germany
3. Department of Cardiothoracic and Vascular Surgery German Heart Centre Berlin Germany
4. Department of Cardiac Surgery KU Leuven Leuven Belgium
5. Department of Cardiovascular Surgery Ege University Izmir Turkey
6. European Registry for Patients with Mechanical Circulatory Support (EUROMACS) European Association of Cardiothoracic Surgery (EACTS) Windsor UK
7. Department of Cardiac Surgery Kerckhoff Klinik Bad Nauheim Germany