1 Department of Anesthesiology, University Medical Center, Johannes Gutenberg-University Mainz, Germany. Electronic address: lott@uni-mainz.de.
2 Emergency Medical Services of the Hradec Králové Region, Hradec Králové, Czech Republic; Department of Anaesthesiology and Intensive Care Medicine, Charles University in Prague, University Hospital Hradec Králové, Hradec Králové, Czech Republic.
3 Departments of Renal and Internal Medicine, Victoria Hospital, Kirkcaldy, Fife, UK.
4 Anaesthesiology and Intensive Care, Catholic University School of Medicine, Teaching and Research Unit, Emergency Territorial Agency ARES 118, Rome, Italy.
5 Cardiology Department, University Clinical Hospital of Santiago de Compostela, Institute of Health Research of Santiago de Compostela (IDIS), Biomedical Research Networking Centres on Cardiovascular Disease (CIBER-CV), A Coruña, Spain.
6 Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Cologne, Germany.
7 Resuscitation Medicine, University of Warwick, Warwick Medical School, Coventry CV4 7AL, UK; Anaesthesia and Intensive Care Medicine, Royal United Hospital, Bath BA1 3NG, UK.
8 Department of Anaesthesiology and Intensive Care Medicine, Hospitallers Brothers Hospital, Paracelsus Medical University, Salzburg, Austria.
9 Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK; University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
10 Department of Anesthesiology, Critical Care and Emergency Medicine, Bethel Medical Centre, OWL University Hospitals, Bielefeld University, Germany.
11 Thames Valley Air Ambulance, Stokenchurch, UK.
12 Southmead Hospital, North Bristol NHS Trust, Bristol, UK.