1. Department of Anaesthesiology and Intensive Care Medicine, Philipps University, Marburg, Germany
2. Critical Care Research Group, Prince Charles Hospital, University of Queensland, Brisbane,BNE, Australia
3. Advanced Cardiac and Critical Care, Intergris Baptist Medical Center, Nazih Zuhdi Transplant Institute, Oklahoma City, OK, USA
4. Department of Medicine/Cardiology, Oklahoma State University Health Science Center, Tulsa, OK, USA
5. Faculty of Medicine, Ruhr-University of Bochum, Bochum, Germany
6. Department of Pneumology, Allergology and Sleep Medicine, Paracelsus Medical University, Nuremberg, Germany