1. Department of Anesthesiology, Medical University of Göttingen, University Medical Center Göttingen, Göttingen, Germany;
2. Department of Anesthesia and Intensive Care, Istituto di Ricovero e Cura a Carattere Scientifico San Raffaele Scientific Institute, Milan, Italy;
3. Department of Anesthesiology and Intensive Care, ASST Santi Paolo e Carlo Hospital, University of Milan, Milan, Italy;
4. Department of Surgical Sciences, University of Turin, Turin, Italy;
5. Department of Anesthesiology, Intensive Care, and Emergency Medicine, Donau-Isar-Klinikum Deggendorf, Deggendorf, Germany;
6. Pulmonary and Critical Care Medicine, Regions Hospital and University of Minnesota, St. Paul, Minnesota; and
7. Department of Adult Critical Care, Guy’s and St. Thomas’ National Health System Foundation Trust, Health Centre for Human and Applied Physiological Sciences, London, United Kingdom