1 CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.
2 Multidisciplinary Organ Dysfunction Evaluation Research Network (MODERN), Research Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Las Palmas, Spain.
3 Adjunct Scientist, Keenan Research Center for Biomedical Science at the Li Ka Shing Knowledge Institute, St. Michael Hospital, Toronto, Canada.
4 Intensive Care Unit, Hospital Universitario La Fé, Valencia, Spain.
5 Department of Surgical Sciences, Anesthesiology & Critical Care, Hedenstierna Laboratory, Uppsala University Hospital, Uppsala, Sweden.
6 Department of Respiratory Care, Massachusetts General Hospital, Boston, MA, USA.
7 Department of Anesthesia and Critical Care, Harvard University, Boston, MA, USA.