1. Department of Anaesthesiology and Pain Medicine; Inselspital; University Hospital Bern; University of Bern; Bern Switzerland
2. Cardiac Anaesthesia Unit; Department of Emergency; University Hospital of Trieste; Trieste Italy
3. Department of Anaesthesia; Surgical Intensive Care; Prehospital Emergency Medicine, and Pain Therapy; University Hospital Basel; Basel Switzerland
4. Department of Anaesthesia; University Hospitals of Leicester NHS Trust; Leicester UK
5. Department of Cardiovascular Sciences; University of Leicester; Leicester UK
6. Institute for Anaesthesiology, Heart and Diabetes Centre NRW; Ruhr-University Bochum; Bad Oeynhausen Germany
7. Department of Anaesthesia; Liverpool Heart and Chest Hospital; Liverpool UK
8. Department of Anaesthesiology; VU University Medical Centre; Amsterdam the Netherlands
9. Department of Anaesthesia; Intensive Care Medicine, Emergency Medicine and Pain Therapy; Vivantes Klinikum im Friedrichshain; Berlin Germany