[1] Sanquin Blood Bank NW Reg, NL-1066 CX Amsterdam, Netherlands
[2] Sanquin Diagnost Serv, NL-1066 CX Amsterdam, Netherlands
[3] Sanquin Res, NL-1066 CX Amsterdam, Netherlands
[4] Australian Red Cross Blood Serv, Melbourne, Vic, Australia
[5] Australian Red Cross Blood Serv, Perth, WA, Australia
[6] Ullevaal Univ Hosp, Dept Immunol & Transfus Med, N-0407 Oslo, Norway
[7] Hema Quebec, Hematol, Med Affairs, Montreal, PQ H4R 2W7, Canada
[8] Hema Quebec, Quebec City, PQ, Canada
[9] Odense Univ Hosp, Dept Clin Immunol, Cty Funen Transfus Serv, DK-5000 Odense C, Denmark
[10] Etab Francais Sang Bourgogne Franche Comte, F-25000 Besancon, France
[11] Hong Kong Red Cross Blood Transfus Serv, Hong Kong, Hong Kong, Peoples R China
[12] Natl Blood Ctr, Irish Blood Transfus Serv, Dublin 8, Ireland
[13] Red Cross Flanders, Blood Serv, B-1050 Brussels, Belgium
[14] Univ N Carolina, Dept Pathol & Lab Med, Chapel Hill, NC 27515 USA
[15] Natl Blood Serv, Natl Bacteriol Lab, London NW9 5BG, England