1. Professor of Anesthesiology, Département d'Anesthésiologie, CHRU Hôpital Central, 54000 Nancy, France
2. Assistant of Anesthesiology, Département d'Anesthésiologie, CHRU Hôpital Central, 54000 Nancy, France
3. Professor of Hematology Centre de Transfusion Sanguine, CHRU Brabois, 54511 Vandoeuvre-les-Nancy, France