1. University Medical Center Goettingen, Germany
2. Academy of Medical Ethics, University Medical Center Goettingen, Germany
3. Medical director, Emergency Medical Service, Hamburg, Germany
4. Department of Anaesthesiology, University Hospital of Regensburg, Germany
5. Department of Anaesthesiology and Intensive Care Medicine, Municipal Hospital of Lueneburg, Germany
6. Department of Anaesthesiology, Emergency and Intensive Care Medicine, University Medical Center Goettingen