[1] Univ Hosp Tarragona, Intens Care Unit, Tarragona, Spain
[2] Inst Invest Sanitaria Pere Virgili, Tarragona, Spain
[3] Univ Rovira & Virgili, E-43007 Tarragona, Spain
[4] Univ Rovira & Virgili, Dept Nursing, E-43007 Tarragona, Spain
[5] Vall dHebron Hosp, Barcelona, Spain
[6] Bellvitge Univ Hosp, Barcelona, Spain
[7] Verge de la Cinta Univ Hosp, Tortosa, Spain
[8] Hosp Gen Cataluna, Barcelona, Spain
[9] Hosp Vic, Vic, Spain
[10] Arnau de Vilanova Univ Hosp, Lleida, Spain
[11] Hosp Terrassa, Terrassa, Spain
[12] Mutua Terrassa, Terrassa, Spain
[13] Hosp Mataro, Mataro, Spain
[14] Hosp Moisses Broggi, Barcelona, Spain
[15] Org Catalana Trasplantaments & Teixits, Barcelona, Spain