[1] Agcy Biomed, Med & Sci Dept, La Plaine St Denis, France
[2] Hosp Clin Barcelona, Donat Unit, Barcelona, Spain
[3] Catholic Univ Louvain, Dept Intens Care Med, CHU Mt Godinne, Louvain, Belgium
[4] Med Ctr Leeuwarden, Dept Intens Care, Leeuwarden, Netherlands
[5] Univ Oxford, Nuffield Dept Surg Sci, Oxford, England
[6] Univ Oxford, Biomed Res Ctr, Oxford, England
[7] NHS Blood & Transplant, Directorate Organ Donat & Transplantat, Bristol, Avon, England