1 Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Faculty of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
2 Interassociation of Rescue Services, Bern, Switzerland; European Resuscitation Council (ERC), Niel, Belgium.
3 Department of Anesthesiology and Pain Therapy, Bern University Hospital, University of Bern, Bern, Switzerland; School of Medicine, Sigmund Freud University Vienna, Vienna, Austria; European Resuscitation Council (ERC), Niel, Belgium.
4 Department of Emergency Medicine, Antwerp University Hospital and University of Antwerp, Belgium; European Resuscitation Council (ERC), Niel, Belgium.
5 Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; Department of Anesthesiology, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; European Resuscitation Council (ERC), Niel, Belgium.
6 Fondazione Policlinico Universitario A. Gemelli, IRCCS, Institute of Anaesthesia and Intensive Care, Catholic University of the Sacred Heart, Rome, Italy; European Resuscitation Council (ERC), Niel, Belgium.
7 Department of Anaesthesia, Intensive Care and EMS, Maggiore Hospital, Bologna, Italy; European Resuscitation Council (ERC), Niel, Belgium. Electronic address: [email protected].