[1] Univ W England, Bristol BS16 1QY, Avon, England
[2] Progenika SA, Derio, Spain
[3] Univ Ulm, Ulm, Germany
[4] Dept Blood Grp Genet, Lund, Sweden
[5] Immunohaematol Vall Hebron, Barcelona, Spain
[6] UHKT, Prague, Czech Republic
[7] BITS, Bristol, Avon, England
[8] Sanquin, Amsterdam, Netherlands