[1] Erasmus MC, Dept Immunol, NL-3015 GE Rotterdam, Netherlands
[2] Univ Milan, Ctr Ric Tettamanti, Monza, Italy
[3] Univ Hosp Schleswig Holstein, Dept Pediat, Kiel, Germany
[4] Univ Bristol, Dept Cellular & Mol Med, Bristol BS8 1TH, Avon, England
[5] Klinikum Johann Wolfgang Goethe Univ, Frankfurt, Germany
[6] Childrens Canc Res Inst, Vienna, Austria
[7] St Anna Childrens Hosp, Vienna, Austria
[8] Heidelberg Univ, Inst Human Genet, Heidelberg, Germany
[9] Univ NSW, Childrens Canc Inst Australia Med Res, Sydney, NSW, Australia
[10] Hop Robert Debre, Biochim Genet Lab, F-75019 Paris, France
[11] Rigshosp, Dept Clin Immunol, DK-2100 Copenhagen, Denmark
[12] Hop St Louis, Cent Hematol Lab, Paris, France
[13] Charles Univ Prague, Dept Paediat Haematol Oncol, Sch Med 2, Prague, Czech Republic
[14] Charite Med Ctr CVK, Dept Paediat Oncol & Hematol, Berlin, Germany
[15] UCL Royal Free & Univ Coll, Sch Med, Dept Acad Haematol, London, England
[16] Univ Med Ctr Hamburg Eppendorf, Dept Pediat Hematol & Oncol, Hamburg, Germany
[17] Hop Necker Enfants Malad, Hematol Lab, Paris, France
[18] Univ Klinikum Schleswig Holstein, Med Klin 2, Kiel, Germany
[19] Sanquin, Dept Expt Immunohematol, Amsterdam, Netherlands