1. ICU, Saint Louis University Hospital, Paris, France;
2. ICU, Paoli Calmettes Institut, Marseille, France;
3. ICU, Cochin University Hospital, Paris, France;
4. Hematology Department, Saint Louis University Hospital, Paris, France;
5. ICU, Angers University Hospital, Angers, France;
6. ICU Pitié Salpétrière University Hospital, Paris, France;
7. ICU, Monfermeil Hospital, Montfermeil, France;
8. ICU, Roubaix hospital, Roubaix, France;
9. ICU, Mignot Hospital, Le Chesnay, France;
10. Respiratory ICU, Cochin University Hospital, Paris, France;
11. ICU Les Oudaries La Roche Sur Yon Hospital, Les Oudairies –La Roche-sur-Yon cedex, France;
12. ICU, Brabois University Hospital, Vandoeuvre-lès-Nancy, France;
13. ICU, Bordet Institut, Brussels, Belgium;
14. ICU, Ghent University Hospital, Ghent, Belgium;
15. ICU, Saint Etienne University Hospital, Saint-Etienne, France