[1] Hosp San Pedro, Unidad Med Intens, Logrono, Spain
[2] Hosp Santiago, Unidad Med Intens, Vitoria, Spain
[3] SCIAS Hosp Barcelona, SEMICYUC, Com Direct Plan Nacl RCP, Serv Med Intens, Barcelona, Spain
[4] Hosp Gen Castello, Serv Med Intens, Castellon de La Plana, Spain
[5] Hosp Nuestra Senora Amer, Serv Med Intens, Madrid, Spain
[6] Hosp Navarra, UCI, Pamplona, Spain
[7] Hosp SAS de Jerez, Serv Cuidados Crit & Urgencias, Cadiz, Spain
[8] Hosp Sagunt, UCI, Valencia, Spain
[9] Hosp Univ Vall dHebron, Serv Med Intens, Barcelona, Spain
[10] Hosp Univ Virgen del Rocio, SCCU, Seville, Spain
[11] Hosp Univ Vall dHebron, Serv Transplantes, Barcelona, Spain