1 Division of Anaesthesiology, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland.

2 Institute of Mountain Emergency Medicine, Eurac Research, Bolzano, Italy.

3 International Commission for Mountain Emergency Medicine (ICAR MedCom), Zürich, Switzerland.

4 Department of Anaesthesiology and Intensive Care, Medical University of Silesia, Katowice, Poland.

5 Department of Anaesthesia, University Hospitals of Morecambe Bay Trust, Lancaster, England, United Kingdom.

6 Emergency Department, Lausanne University Hospital, Lausanne, Switzerland.

7 Department of Cardiovascular Surgery, Geneva University Hospitals, Geneva, Switzerland.

8 Department of Emergency Medicine, Stanford University Medical Center, Stanford, CA.

9 Department of Emergency Medicine, Alaska Native Medical Center, Anchorage, AK.

10 Congenital Heart Center, University of Florida, Gainesville, FL.

11 Guidelines Subcommittee for the Extracorporeal Life Support Organization, Salzburg, Austria.

12 Department of Anaesthesiology and Intensive Care Medicine, St. John of God Hospital, Paracelsus Medical University, Salzburg, Austria.

The authors have disclosed that they do not have any potential conflicts of interest.

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