[1] ULB, Hop Univ Erasme, Serv Soins Intensifs, B-1070 Brussels, Belgium
[2] Univ Ziekenhuis Gent UGent, Ghent, Belgium
[3] John Radcliffe Hosp, Natl Blood Serv, Oxford OX3 9DU, England
[4] Univ Cambridge, Natl Blood Serv, Cambridge, England
[5] Clin Univ St Luc, UCL, Serv Hematol, B-1200 Brussels, Belgium
[6] CHU Brugmann HUDERF, Anesthesiol Serv, Brussels, Belgium
[7] Super Hlth Council, Fed Publ Serv Hlth, Brussels, Belgium
[8] Clin Univ St Luc, UCL, Anesthesiol Serv, B-1200 Brussels, Belgium
[9] Univ Ziekenhuis Brussel VUB, Brussels, Belgium
[10] ULB, Serv Sang, CRB, Hop Univ Erasme, B-1070 Brussels, Belgium
[11] Univ Antwerp, B-2020 Antwerp, Belgium
[12] Fed Agcy Med Prod, Belgian Haemovigilance Ctr, Brussels, Belgium
[13] ULB, Hop Univ Erasme, Dept Immunol Hematol Transfus, Brussels, Belgium