[1] John Radcliffe Hosp, Dept Haematol, Oxford OX3 9DU, England
[2] INSERM CNRS Marseille Luminy, Ctr Immunol, Marseille, France
[3] INSERM, Creteil, France
[4] MRC, Ctr Immune Regulat, Div Immun & Infect, Birmingham, W Midlands, England
[5] Johns Hopkins Comprehens Canc Ctr, Baltimore, MD USA
[6] Univ Washington, Dept Microbiol, Seattle, WA 98195 USA
[7] Dept Expt Immunohematol, CLB, Amsterdam, Netherlands
[8] Cornell Univ Med Coll, Div Mol Med, Lab Mol Hematol, Manhasset, NY 11030 USA
[9] Hannover Med Sch, Kinderklin, Hannover, Germany
[10] Mater Hosp, Mater Med Res Inst, Brisbane, Australia
[11] Acad Sci Czech Republ, Inst Mol Genet, Prague, Czech Republic
[12] Heidelberg Univ, Inst Immunol, D-6900 Heidelberg, Germany
[13] Univ Illinois, Coll Med, Urbana, IL 61801 USA
[14] German Canc Res Ctr, D-6900 Heidelberg, Germany
[15] NIH, Bethesda, MD 20892 USA
[16] Celltech R&D Ltd, Cambridge, England
[17] Inst Res Biomed, Bellinzona, Switzerland
[18] Womens & Childrens Hosp, Child Hlth Res Inst, Adelaide, SA, Australia