[1] Univ Lille Nord France, Serv Reanimat Polyvalente, Grp Hosp Inst Catholique Lille, Fac Libre Med, F-59462 Lomme Lez Lille, France
[2] CHU Gabriel Montpied, Serv Reanimat Polyvalente, F-63003 Clermont Ferrand, France
[3] CHU Necker Enfants Malades, Serv Reanimat Medicochirurg, F-75743 Paris 15, France
[4] Grp Hosp Paris St Joseph, Serv Reanimat Chirurg, F-75014 Paris, France
[5] CH Sud Francilien Site Corbeil, Serv Reanimat Polyvalente, F-91106 Corbeil Essonnes, France