1. Multidisciplinary Intensive Care Unit, Department of Anesthesiology and Critical Care; La Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris; University Pierre and Maris Curie; Paris France
2. Department of Pulmonary Medicine; Huadong Hospital, Fudan University; Shanghai Peoples Republic of China
3. University of California San Francisco; Department of Anesthesiology; San Francisco CA USA