[1] Pontificia Universidad Católica de Chile,Departmento de Medicina Intensiva, Facultad de Medicina
[2] Hopitaux Universitaires Paris-Sud,Service de réanimation médicale, Hopital Bicetre
[3] Université Paris-Sud,Assistance Publique Hôpitaux de Paris
[4] Erasmus MC University Medical Center,Department of Intensive Care Adults
[5] New York University,Department of Pulmonary and Critical Care
[6] Columbia University Medical Center,Division of Pulmonary, Allergy, and Critical Care Medicine