1. School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
2. Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy.
3. Department of Medical Physiopathology and Transplants, University of Milan, Milano, Italy.
4. Department of Anesthesia and Intensive Care Medicine, Niguarda Ca’ Granda, Milan, Italy.
5. Harvard Medical School, Boston, Massachusetts, USA.
6. Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.
7. Respiratory Care Department, Massachusetts General Hospital, Boston, Massachusetts, USA.