[1] S. Anna Hospital,Section of Anaesthesia and Intensive Care, Department of Morphology, Surgery and Experimental Medicine
[2] University of Ferrara,Dipartimento di Fisiopatologia Medico
[3] Unidade de Cuidados Intensivos Neurocríticos,Chirurgica e dei Trapianti
[4] Hospital de São José,Department of Anaesthesia and Intensive Care
[5] Centro Hospitalar de Lisboa Central,Division of Clinical Epidemiology
[6] Rua José António Serrano Lisboa,Department of Intensive Care Medicine
[7] Rudolfstiftung Hospital and Medical University of Vienna,undefined
[8] General and Medical Intensive Care Unit (Rudolfstiftung Hospital),undefined
[9] Assistance Publique - Hôpitaux de Paris,undefined
[10] Hôpital Saint-Antoine,undefined
[11] Service de Réanimation Médicale,undefined
[12] UPMC Univ Paris 06; Inserm,undefined
[13] Unité de Recherche en Épidémiologie Systèmes d’Information et Modélisation (U707),undefined
[14] Università degli Studi di Milano,undefined
[15] Polo Universitario San Paolo,undefined
[16] Hôpital Nord,undefined
[17] Chemin des Bourrely,undefined
[18] University Hospitals of Geneva and University of Geneva,undefined
[19] St George's Healthcare NHS Trust and University of London,undefined
[20] the Working Group on Health Economics of the European Society of Intensive Care Medicine,undefined